JP3091881B1 - Racks for printed wiring boards, etc. - Google Patents

Abstract

An object of the present invention is to surely lean even a thin printed circuit board or the like having a large area. A base 11 movable between lines,
Left and right support legs 12 are provided integrally with the base 11 to form an opening 13 opened forward in the base 11, and a large number of printed wiring boards 20 and the like attached to the rear of the base 11. And a surface on which the printed wiring board 20 and the like of the frame 14 are leaned is curved so as to protrude rearward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rack for transporting or storing a large number of printed wiring boards or sheet materials (hereinafter sometimes simply referred to as printed wiring boards) as a base material thereof, and more particularly to a printed wiring board. The present invention relates to a rack supported by a plate or the like.

[0002]

2. Description of the Related Art A so-called printed wiring board is formed by forming a conductive circuit by plating or etching on a surface of a base material made of an insulating plastic or the like. To do so, it is necessary to go through various steps such as a washing step, a drying step, a printing step, an exposure step, as well as a plating and etching step.
Although each of these steps performs a different operation even though they are linked to each other, they are constituted by independent devices.

[0003] In addition, printed wiring boards of this type are often mass-produced, and the printed wiring boards or a sheet material that is the base material of the printed wiring boards are collectively carried into each process. What is used is a "rack".

[0004] In the conventional rack, a flat printed wiring board or a sheet material as a base material of the rack is transported in a state of being flatly stacked. The applicant has already proposed a rack in which a printed wiring board or the like is leaned obliquely.

A rack in which a printed wiring board or the like is leaned obliquely is very effective for the work using a charging machine as already proposed by the applicant as shown in FIG. It was very useful because it did not adhere to a board or the like at all.

However, in subsequent studies, it has been found that a problem may occur even with a type of rack in which the printed wiring board or the like is leaned obliquely. That is, when the printed wiring board or the sheet material as its base material is very thin (some have a thickness of about 100 μm to 150 μm) and has a large area (some has a size of 0.5 m ² or more). In the meantime, it turned out that he could not get on the rack well.

That is, if a thin, large-area printed wiring board or the like is mechanically moved, the whole is bent due to air resistance, and when leaning against the rack at an angle, the printed wiring board or the like completely hits the rack. If you do not wait until it comes into contact with and stand still, the upper end will fall forward and you may not be able to load it properly on the rack. The major cause is not only that the printed wiring board and the like are soft and easy to bend, but also that the printed wiring board is leaned obliquely, as shown in FIG. It has been found that the point P where the perpendicular line intersects with the upper surface of the rack is shifted from a portion of the printed wiring board that is in contact with the upper surface of the rack.

The above description is based on the charging machine 30 shown in FIG.
, The substrate carrying-out path 33 for the printed wiring board 20, etc.
Not only when carrying out to the upper side, but also when using the "receiver" which reversed the operation | movement of this input machine 30, ie, when using the apparatus which receives many printed wiring boards 20 from a board | substrate conveyance path on a rack. This is a problem that also occurs. In addition, when protective paper for protecting them is sandwiched between the printed wiring boards 20, it is difficult to receive and insert the normally thin protective paper. Receiving and loading operations become difficult.

The inventor of the present invention has conducted various studies on how to ensure that a slanted lean can be performed even on a thin printed circuit board having a large area. The invention was completed.

[0010]

SUMMARY OF THE INVENTION The present invention has been made on the basis of the above circumstances, and the problem to be solved is that even a printed circuit board or the like having a thin and large area is obliquely inclined. It is to ensure that it can be leaned against.

That is, the object of the present invention is as follows.
An object of the present invention is to provide a rack having a simple structure that can surely lean the printed wiring board or the like even when it is thin and has a large area.

[0012]

Means for Solving the Problems In order to solve the above-mentioned problems, first, means adopted by the invention according to claim 1 will be described with reference numerals used in the embodiments described later. , "printed wiring board 20 or is leaned against a number of sheet material which is a base material, a rack 10 that is used to move from one processing line to the next processing line, movable between lines Base 11, left and right support legs 12, 12 provided integrally with the base 11 to form an opening 13 opened forward in the base 11, and attached to the rear of the base 11. and a TatsuKake frame 14 a number is leaned against, such as a printed wiring board 20, the and the thighs curving the surface of the printed wiring board 20, and the leaned against the TatsuKake frame 14 so as to project to the rear side Open its front,
The rack 10 "is characterized in that:

That is, the rack 10 according to claim 1
The sheet material printed wiring board 20 or is the substrate (hereinafter, simply printed wiring board 20 or the like, hereinafter) leaning against a large number of, it is used to move from one processing line to the next processing line The surface of the hanging frame 14 on which the printed wiring board 20 and the like are leaned is curved so as to protrude rearward (the side opposite to the side from which the printed wiring board 20 and the like are taken out).

Thus, according to the rack 10, when a large number of printed wiring boards 20 and the like are mechanically unloaded onto the board unloading path 33 by using, for example, the loading machine 30 shown in FIGS. During this operation, the printed wiring board 20 and the like do not fall down carelessly.

This is because, when the printed wiring boards 20 are viewed, the surface of the hanging frame 14 on which the printed wiring boards 20 and the like stand is curved so as to project rearward. The printed wiring board 20 is also curved along the curved surface of the frame 14, and therefore, as shown in FIG. 7A, the perpendicular line from the center of gravity of the printed wiring board 20 to the rack 10 The point P that intersects the upper surface is
This is because the printed wiring board 20 or the like is located in a portion in contact with the upper surface of the rack 10 or is located in front (on the side from which the printed wiring board 20 or the like is taken out).

The above can be said not only for the printed wiring board 20 and the like, but also for the protection paper disposed between the printed wiring boards 20. Of course, if the printed wiring board 20 or the like has such a rigidity that it does not curve naturally, it is supported on the front surface of the hanging frame 14 while being flat, so that no problem occurs.

Therefore, according to the rack 10 of the first aspect, even if the printed wiring board is thin and has a large area, the printed wiring board can be surely leaned on the slant, and the printed wiring board 20 can be inserted. And receiving can be performed without any obstacles.

According to another aspect of the present invention, there is provided a rack according to the first aspect.
0, "the inclined support frame 14a in which the hanging frame 14 is formed by a gate-shaped wire, and the support plate 14b integrated with the front surface side of the inclined support frame 14a and curved so as to project rearward. That is composed of

That is, the rack 10 according to claim 2
Is composed of an inclined support frame 14a in which the hanging frame 14 is formed of a gate-shaped wire, and a support plate 14b integrated with the front side of the inclined support frame 14a and curved so as to be convex rearward. It was done.

Therefore, the rack 10 is provided in the first aspect.
In addition to the function similar to that of the invention described above, the entire structure can be simplified and the manufacturing can be easily performed.

[0021]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a rack 10 according to an embodiment of the present invention. Therefore, the following description will focus on the rack 10 of this embodiment.

FIG. 1 is a perspective view of a rack 10 according to the present invention. The rack 10 holds a large number of printed wiring boards or a sheet material 20 as a base material of the printed wiring board.
It is used to move from one processing line to the next processing line. For example, this rack 10 is shown in FIG.
7, when used in the loading machine 30 shown in FIG.
The rack 10 is fed from the direction
Each printed wiring board 20 is taken out from above, and is carried out (injected) in the direction B shown in the figure.

As shown in FIGS. 1 to 4, the rack 10 has a base 11 which can be moved between lines.
And left and right support legs 12 provided integrally with the base 11 to form an opening 13 opened forward in the base 11.
And the printed wiring board 2 attached to the rear of the base 11.
And a leaning frame 14 on which a large number such as 0 is leaned.
As shown in FIGS. 1 and 4, the surface on which 0 and the like are leaned is curved so as to be convex rearward.

In short, in the rack 10, the support surface of the upright frame 14 is formed by bending a large number of printed wiring boards 20 and the like so as not to adversely affect the solder resist, the conductor circuit, and the like on the surface. In the case of the present embodiment, the inclination angle of the hanging frame 14 is set to 7
When the angle is set to 0 degree, the radius of curvature of the bearing surface of the curved standing frame 14 is about 1570 mm.

Further, in the rack 10 of the present embodiment, the upright frame 14 is formed by a gate-shaped wire rod.
a is integrated with the front side of the inclined support frame 14a,
The support plate 14b is curved so as to be convex toward the rear side. By doing this,
Each of the inclined support frame 14a and the support plate 14b can be formed as a separate component, and the radius of curvature of the support surface of the upright frame 14 can be easily set to about 1570 mm.

In the rack 10 of this embodiment, as shown in FIG. 1 and the like, an inclined elastic table 12a is integrally formed on the upper surface of each support leg 12, and the inclined elastic table 12a The lower end of each printed wiring board 20 or the like does not slide forward and the printed wiring board 20 or the like does not fall. That is, as shown in FIG. 2, each inclined elastic table 12a is literally gradually inclined forward (the front side of the hanging frame 14), and is provided with a non-slip surface or an entire rubber surface. It is formed of a soft material having a high friction coefficient such as.

Further, in the rack 10, an opening 13 is formed between the support legs 12, and the opening 13 allows the separation bar 36 to be moved up and down from below. As shown in FIG. 6, the separation rod 36 is one of the components constituting the input device 30. The separation rod 36 is connected between the printed wiring board 20 at the tip and the next printed wiring board 20 or the like. By moving upward, the printed wiring board 20 at the tip is completely separated from the others.

The rack 10 as described above is shown in FIGS.
Is used in the charging machine 30 described above, but the charging machine 30 is configured as follows. That is, this charging machine 30
Rack 10 on which a large number of printed wiring boards 20 and the like are loaded from a pre-processing line (not shown) on the left side of FIG.
Is received on the rack entrance 31 and the rack 10
Of the printed wiring boards 20 and the like are taken out onto the substrate carrying-out path 33 by the transfer device 32 from the substrate carrying-out path 3.
3 to a next processing line (not shown).
When a protection paper is inserted between the printed wiring boards 20, only this protection paper is taken out by a protection paper take-out device 35 which moves up and down on the reciprocating transport path 34.

As shown in FIG. 6, the transfer device 32 of the loading machine 30 receives the lower ends of the printed wiring boards 20 and the like one by one by a rotating arm, and the rotating arm The printed wiring boards 20 and the like are sent onto the board carry-out path 33 by rotating toward. The transfer device 32 is provided with a suction cup that sucks the printed wiring boards 20 one by one, whereby the lower part of the printed wiring boards 20 is drawn into the rotating arm side. The transfer device 32 has a separation rod 36 also illustrated in FIG. 6, and the separation rod 36 moves upward between the printed wiring boards 20, so that the printed wiring boards 20 are separated one by one. This is to ensure separation.

[0030]

As described above in detail, in the invention according to Mau claim 1, as illustrated in the above embodiment, "was printed circuit board 20 or is leaned against a number of sheet material which is the base material A rack 10 used to move from one processing line to the next processing line, wherein a base 11 movable between the lines and an opening 13 opened forward in the base 11 are formed. The left and right support legs 12 are integrally provided on the base 11 and a standing frame 14 attached to a rear portion of the base 11 and on which a large number of printed wiring boards 20 and the like are supported. The surface of the hanging frame 14 on which the printed wiring board 20 or the like is leaned is curved so as to be convex rearward , and the front is opened.
In the rack 10 of the second aspect, the rack 10 according to the second aspect has the following features: the inclined support frame 14a in which the hanging frame 14 is formed by a gate-shaped wire; A support plate 14b integrated with the front side of the inclined support frame 14a and curved so as to protrude rearward.
Has a feature in its configuration. With this, it is possible to securely lean the printed wiring board 20 or the like even if the printed wiring board 20 or the like is curved and easily falls down. A possible rack 10 can be provided by a simple structure.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rack according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a plan view of the same.

FIG. 5 is a front view of a charging machine in which the rack according to the present invention is actually used.

FIG. 6 is an enlarged front view of a main part of the charging machine.

FIG. 7 shows the relationship between the shape of a portion of the printed wiring board or the like abutting on the rack and the position of the perpendicular to the center of gravity, where (a) is a plan view when the rack of the present invention is used,
(B) is a plan view of a conventional case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Rack 11 Base 12 Support leg part 12a Inclined elastic stand 13 Opening 14 Standing frame 14a Inclined support frame 14b Support plate 20 Printed wiring board 30 Input machine

Claims (2)

(57) [Claims] 1. A rack used to move a plurality of printed wiring boards or a sheet material as a base material thereof from one processing line to a next processing line, and to be movable between the respective lines. A base, left and right support legs integrally provided on the base so as to form an opening opened forward in the base, and a plurality of printed wiring boards and the like attached to the rear of the base. And a surface on which the printed wiring board or the like of the frame is leaned is curved so as to be convex toward the rear side, and the front of the frame is curved.
A rack characterized in that the rack is opened . 2. An inclined support frame formed by a gate-shaped wire rod, and a support plate integrated with the front side of the inclined support frame and curved so as to protrude rearward. The rack according to claim 1, wherein the rack is formed.