JPH0639284B2 - Plate storage magazine and plate storage method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage magazine for storing a plate body such as an electronic circuit board and a method for storing a plate body in the magazine.

[Prior Art] A board on which an electronic circuit is printed or an electronic component is mounted on a printed circuit board is processed in a predetermined process,
When they are sequentially transferred, they are once stored in a magazine.
Then, when actually printing and mounting the parts, they are taken out one by one from the magaji.

The structure of the conventional magazine and a method for accommodating a plate therein will be described with reference to FIG. FIG. 5 shows a magazine for housing the plate body B. This magazine 1
On the inner side surfaces facing each other, pairs of cracks 4, 4 corresponding to each pair in the horizontal direction are arranged at equal intervals in the height direction of the magazine 1.

The plates B, B ... Are transferred in the direction of arrow C by, for example, the conveyor 2. When a certain plate B is located in front of the magazine 1, the pusher 10 pushes it out from above the conveyor 2 and inserts it between the racks 4 and 4 on both sides of the magazine 1. When one plate No. B is stored, the lift base 9
Moves down by one pitch of the rack 4 and stops. Subsequently, when the next plate body B is transferred to the position of the pusher 10, it is inserted into the magazine 1 from above the conveyor 2 like the above plate body B, and it is one step above the previous plate body B. It is stored between the racks 4 and 4.

The slit plate 7 attached to the lift table 9 descends together with the lift table 9 and serves as positioning means for stopping the lift table 9 at a position where the plate body B and the racks 4 and 4 in which the plate body B is to be stored correspond. Used. For example, slit plate 7
Are provided with slits 8, 8 ... As positioning patterns corresponding to the pitches of the racks 4, 4 ,. Reference numerals 5a and 5b are a light source and a light receiver for detecting the positions of the slits 8, 8 ... When the slits 8, 8, ... Are detected, the signal detected by the light receiver 5b is fed back to the control device (not shown) of the drive means of the lift table 9, and the lift table 9 descend timing and one pitch. Control the descending of.

In FIG. 5, 3 is a top plate of the magazine 1, and 6 and 6 are side plates of the magazine 1. Although the above-mentioned conventional example is the case where the plate B is sequentially loaded from the lower stage to the upper stage, conversely, it may be sequentially loaded from the upper stage to the lower stage.

[Problems to be Solved by the Invention] The conventional lifting / lowering control means for the magazine 1 has the following problems in positioning accuracy at the stop position.

First, there is a problem of the positional deviation between the slit 8 of the slit plate 7 and the racks 4 and 4 of the magazine 1. For example,
If the position where the magazine 1 is placed on the lift base 9 is misaligned, the positions of the slits 8, 8 ... And the positions of the racks 4, 4, ... Do not correspond accurately. In addition, the same misalignment often occurs due to expansion or warpage of the side plate 6 of the magazine 1.

In such a case, even if the plate body B is pushed out by the pusher 10, it is not correctly housed between the racks 4 and 4, and the plate body B is often dropped or further damaged.

The second is the problem of the error in the spacing between the racks 4, 4, ... Of the magazine 1. That is, if the intervals of the racks 4, 4, ... Are not uniform, no matter how accurately the lift base 9 is controlled based on the detected positions of the slits 8, 8, ... It doesn't correspond exactly to 4. Therefore, the troubles such as the defective loading and the damage of the plate body B as described above are caused.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a plate body storage magazine which does not cause a loading error and a method of storing a plate body therein.

[Means for Solving the Problem] The configuration of the present invention will be described with reference to the reference numerals shown in FIGS. 1 to 4.

First, the plate storage magazine according to the first invention has the following configuration. That is, both side plates 16 and 1 of the magazine 11
The racks 14, 14 ... Are arranged on the inner surface sides of the six facing each other. Further, on at least one outer surface of the side plate 16, a positioning pattern 27 corresponding to each of the racks 14, 14 ... on the inner surface side is arranged. Further, between the racks 14, 14 ... Of the side plate 16 and the positioning pattern 27, these racks 14, 14 ...
A guide 25 is formed along the direction in which the positioning patterns 27 are arranged.

Next, a method for accommodating plates in the plate accommodating magazine according to the second invention is as follows. That is, using the plate storage magazine, the magazine 11 is moved up and down while being guided along the guide 25 provided on the side plate 16 of the magazine 11. At this time, the magazine 11 is stopped for each pattern while detecting the positioning pattern 27 provided on the outer surface of the side plate 16. When this is stopped, the racks 14 arranged on the inner surface of the side plate 16,
Between the fourteen, the plate B is sequentially inserted.

[Operation] In the plate storage magazine according to the first aspect of the invention, the guide 25 that regulates the direction in which the magazine 11 is moved up and down, the positioning pattern 27 that determines the stop position of the magazine 11, and the plate B when the magazine 11 stops Rack 1 to be inserted
.. are provided on the side plate 16.

Therefore, when the plate bodies B are stored in the racks 14, 14 ... Using the plate body storage magazine according to the first aspect of the present invention, the racks 14, 14 ... The same side plate 1 without interposing other members other than
6 is moved along a guide 25 provided on the side plate 6, and is stopped according to a positioning pattern 27 provided on the side plate 16. Therefore, for example, even if the side plate 16 is slightly deformed, such as stretched or warped, or the racks 14 and 14 are unevenly spaced, they stop the racks 14 and 14 at each stage at a fixed position. Cannot be an obstacle. By merely stopping the magazine 11 at the position of the positioning pattern 27, the racks 14 and 14 of the respective stages corresponding to this pattern one by one can be always stopped at a fixed position. Therefore, if the initial position is set in advance so that the plate body B is inserted at the stop position, the plate body B is surely inserted between the racks 14 and 14 thereafter.

[Embodiment] An embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 4.

As shown in the drawings, the side plates 16 of the magazine 11 facing each other,
Racks 1 corresponding to the inner surface of 16 in pairs in the horizontal direction
4, 14 are arranged at equal intervals in the height direction. This point is substantially the same as the conventional magazine shown in FIG.

Guide 2 that regulates the direction in which magazine 11 is raised and lowered
5, a groove having a V-shaped cross section has a left side plate 16 of the magazine 11.
It is formed vertically along the front and back. Reference numeral 26 is a guide roller fitted in the guide 25, and has a shape like an abacus ball which fits the shape of the guide 25 as shown in FIG. 3B. As shown in FIG. 2, in the illustrated embodiment, three guide rollers 26 are fitted in each of the front side guide 25 and the rear side guide 25 of the left side plate 16 and guided by the guide rollers 26. 11 is moved up and down.

Further, positioning patterns 27 are formed on the outer surface of the left side plate 16 at the same intervals as the inner racks 14, 14, ... As shown in FIG. 3 in an enlarged manner, the positioning pattern 27 shown in the drawing is a pattern of protrusions and recesses alternately arranged in the vertical direction on the outer surface of the left side plate 16, and the recesses 29 sandwich the same side plate 16 so that the recesses 29 sandwich the racks 14, 14. , And the convex portion 28 corresponds to the middle portion thereof. The guide 25 is located between them.

2B and 3A show an example of the sensor 30 for detecting the positioning pattern 27. That is, the sensor 30 includes a light receiving head that detects reflected light, and the detected reflected light is used to make the convex portion 2 of the positioning pattern 27.
8 and the recess 29 are identified. As shown in FIG. 2B, the sensor 30 is connected to the signal processing unit 32 via the optical fiber 31.

Further, as another means for detecting the positioning patterns 27, 27, for example, as shown in FIG. 4, an electromagnetic signal detection method or the like is used. That is, as the positioning pattern 27, a fixed pattern formed by alternately depositing magnetic powder such as a tape (for example, an uneven shape of a magnetic body as shown in the drawing)
This tape is attached to the outer surface of the left side plate 16 using. Of course, the position of the positioning pattern 27 must satisfy the relative positional relationship with the racks 14, 14 ... Provided on the inner surface of the left side plate 16.
In this case, an electromagnetic detection head having an exciting coil 33 and a secondary coil 34 is used as the sensor 30, and the positioning pattern 27 is detected by the strength of the induced magnetic field.

The positioning pattern 27 and its detecting means are, for example, the former light detecting means when the disturbance of the surrounding magnetic field is large, and the latter magnetic detecting means when the disturbance of the light is large, depending on the situation. To use. The positioning pattern 27 may use a means that can be detected by the sensor 30, and therefore the pattern is selected depending on the type of sensor.

As shown in FIG. 1, in the illustrated embodiment, the positioning patterns 27 are provided on both the front side and the rear side of the outer surface of the left side plate 16, but either one may be normally provided. When both are provided, a logical product signal of the left and right position information can be used as the loading signal.

FIG. 3B is an enlarged view of the guide roller 26, which is fitted in the V groove as the guide 25 and guides the vertical movement of the magazine 11. In FIG. 2, the guide 25 is attached to the left side plate 16
It is provided on both the front and rear sides of the
It is also possible to provide guides 25 on the left and right side plates 16, 16 and guide the magazine 11 along them. Further, instead of a roller-shaped guide means such as the guide roller 26, for example, a rail-shaped guide means or the like can be used.

Next, a method of accommodating a plate according to the second invention using the plate accommodating magazine will be described. The magazine 11 is placed on the lift table 19, and the guide roller 2 is fitted into the guide 25, thereby guiding the vertical movement of the magazine 11. In addition, the side plate 16 of the magazine 11 with the sensor 30
The positioning pattern 27 formed on the upper part of the magazine 11 is detected, and the lift of the magazine 11 for one pitch is controlled based on the pattern (for example, the position of the convex portion 28).

Then, after stopping at every 1 pitch, for example, the plate body B conveyed by the conveyor 12 is pushed out to the magazine 11 side by the pusher 20 or the like, and is inserted between the racks 14 on both sides.

[Effects of the Invention] As described above, according to the present invention, even if there is an error or a position shift between the plate storage magazine itself and the lift table on which it is placed, the racks 14 and 14 of each stage are Can be stopped at a fixed position. Therefore, the board is rack 1
There is an effect that it can be surely inserted between Nos. 4 and 14.

[Brief description of drawings]

FIG. 1 is a perspective view of a plate storage magazine showing an embodiment of the first and second inventions in use, and FIGS. 2A and 2B are plan views of the plate storage magazine showing the embodiment of the first invention. Figures and front views, FIGS. 3A and 3B are enlarged front views of main parts of FIG. 2B and front views of one component thereof, and FIG. 4 is an enlarged front view of main parts showing another embodiment, and FIG. FIG. 6 is a perspective view showing a conventional plate storage magazine and its usage state. 11 ... Magazine, 14 ... Rack 16 ... Side plate, 25 ... Guide 27 ... Positioning pattern, B ... Plate

Claims (2)

[Claims] 1. A plurality of stages of racks 1 for supporting a plate B.
In a substrate storage magazine provided with 4, 14, ..., Racks 14, 14 ... Are arranged on opposite inner surface sides of both side plates 16, 16 of the magazine 11, and at least one of the side plates 16 has an outer surface on the inner surface side. The positioning patterns 27 corresponding to the racks 14, 14 ... One by one are arranged, and the racks 14, 14 ... And the positioning pattern 27 are provided between the racks 14, 14 ... And the positioning pattern 27 of the side plate 16. A plate accommodating magazine characterized in that guides 25 are formed along the direction in which they are arranged. 2. A plate accommodating method in which a plate B is inserted between a plurality of racks 14, 14 formed in a plate accommodating magazine in a plate accommodating method in which opposite side surfaces of both side plates 16, 16 of a magazine 11 face each other. The racks 14, 14, ... Are arranged, and the positioning patterns 27 individually corresponding to the racks 14, 14 ... One by one on the inner surface side of the outer surface of at least one of the side plates 16.
, And a guide 25 is formed between the racks 14, 14 ... And the positioning pattern 27 of the side plate 16 along the direction in which the racks 14, 14 ... And the positioning pattern 27 are arranged. The magazine 11 is guided up and down while being guided along the guide 25 provided on the side plate 16 of the magazine 11, and the pattern is detected while detecting the positioning pattern 27 provided on the outer surface of the side plate 16. The magazine 11 is stopped every time, and when stopped, the plate B is sequentially inserted between the racks 14, 14 arranged on the inner surface of the side plate 16 to a plate storage magazine. How to store the plate.