JPH0432435A - Thin plate conveyor device - Google Patents

Abstract

PURPOSE:To prevent tip break/bend and damage at both ends of a thin plate by providing tapered parts at both ends of feed-in rollers. CONSTITUTION:At the time of feeding a thin plate 7 into feed-in rollers 1, 2, both ends of the thin plate 7 and clamped between both end parts of the feed-in rollers 1, 2. The feed-in rollers 1, 2 are provided, at both ends thereof, with tapered parts 11, 21. The recessed warp parts 73 provided at both ends of the thin plate 7 are thereby pressed only moderately from above and below by the tapered parts 11, 21. That is, the recessed warp parts 73 are pressed not strongly into the original horizontal position of the thin plate 7 but into its intermediate position, for instance.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a conveying device for various thin plates having relatively thin thickness, such as printed wiring boards.

[Prior art]

Thin plates such as printed wiring boards are often transported by rollers in order to undergo various treatments.

For example, the thin plate 7 shown in FIG. 7 has a thickness of 0.065 to 0.
, 2■ printed wiring board. The thin plate 7 tends to have concave warped portions 73, 73 that curve upward from the center portion 71 of the substrate to both ends 72°72. The thin plate 7 is made of a plastic composite base material such as glass epoxy, paper phenolic resin, etc. Therefore, the substrate material itself tends to undergo thermal contraction during drying after resin coating or cleaning.

As a result, the thin plate 7 has, at both ends 72.72,
This results in deformation of the concave warped portion 73 and the like.

In addition, such thin plate 7 often requires several types of further processing before being produced as a final product. For example, as shown in FIGS. 7 and 8, the thin plate 7 is moved between a pair of upper and lower rollers 91.
92, and conveyed in the C direction. At this time, painting, dry grinding (sanding), etc. are performed.

Here, pressure is applied to both rollers 91 and 92 from the direction C, as shown in FIG. Therefore,
The thin plate 7 is clamped under pressure by two rollers 91 and 92.

[Problem to be solved]

However, the above-mentioned conventional technology has the following first-order problem.

That is, the thin plate 7 has concave warped portions 7 at both ends 72 and 72.
3.73. Therefore, pressure and stress are applied to both ends 72 and 72 of the thin plate at the feed rollers 91A and 92A, which are the entrance portions of the conveyance rollers. As a result, as shown in FIG. 9, the tip portions 74 at both ends 72 of the thin plate 7 are bent or damaged.

The present invention was made in view of the problems of the conventional art, such as bending of the tips at both ends of the thin plate.

Another object of the present invention is to provide a thin plate conveying device that will not be damaged.

[Means for solving problems]

The present invention resides in a thin plate conveyance device having a feed roller for loading a Wt plate, and wherein the feed roller has a tapered portion at both ends thereof.

The thin plate mentioned above is, for example, a chip carrier made of printed wiring board film.

In addition, the above-mentioned feed roller refers to a roller at the first inlet section into which a thin plate as a conveyed object is inputted in a conveyance device consisting of a large number of roller groups. and has a metal main body around the rotating wheel. Further, the main body has an elastic body lined with rubber around the main body.

One important thing is that the feed roller has tapered portions at both ends thereof, the diameter being smaller on the outside. Moreover, as the taper part.

It is preferable that the angle is 2 to 5 degrees with respect to the axis of the feed roller, and the tapered portion.

Provided at the part where both ends of the thin plate to be sent are located.

In addition, the above-mentioned feeding roller may include, for example, a pair of upper and lower rollers (see FIG. 1).

There is an embodiment in which an upper roller is combined with a belt conveyor placed below it (see Fig. 5), and behind the feed roller, a roll coater for painting, for example, is placed, or for grinding (sanding). Place the machine.

[For production]

In the thin plate conveying apparatus according to the present invention, first, the feed roller and the conveying device disposed behind it are operated, and then the thin plate to be conveyed is prepared in front of the feed roller.

The thin plate is put into the feed roller. Then, the thin plate is transported by a feed roller.

The next processing step 1 is sending to a roll coater, for example. Then, the surface of the thin plate is subjected to painting, sanding, etc.

By the way, when the thin plate is fed into the feed roller, both ends of the thin plate are sandwiched between both ends of the feed roller. Tapered portions are provided at both ends of the feed roller. Therefore, even if there are concave warped portions at both ends of the thin plate, the concave warped portions are only loosely pressed from above and below by the tapered portions of the rollers. In other words, the concave warped portion is not strongly pressed to the original horizontal position of the FI board, but is pressed to, for example, an intermediate position. Further, since this tapered portion has a smaller diameter on the outside, the concave warped portion inserted into this portion opens outward. In other words, 1gH board.

Open in a flat direction. Therefore, the concave warped portion of the thin plate will not be bent or damaged.

〔effect〕

As described above, according to the present invention, the tips at both ends of the board will not be bent or damaged.
A thin plate conveying device can be provided.

Embodiment 1 First Embodiment A thin plate conveying apparatus according to this embodiment will be explained with reference to FIGS. 1 and 2.

That is, one example of the conveying device is as shown in FIG.

A pair of upper and lower feed rollers 1 for feeding the thin plate 7
．． It has 2. Further, as shown in FIG. 1, the feed roller 1.2 has tapered portions 11 at both ends thereof.
．． It has 12.

The thin plate 7 is a film-like printed wiring board with an average thickness of 0.1 m. Moreover, the thin plate 7 has three both ends 72.
．． At 72, there is a concave warp 73°73 (see FIG. 3).

Further, as shown in FIG. 1, each of the feed rollers 1 and 2 has a smooth body portion 10.
has 0. The feed roller 1.2 also has a tapered portion 11.21 at both ends thereof.

The tapered portion 11.21 is as shown in the figure.

It has an inclination angle α of 3 degrees with respect to the axis A of the roller.

Further, the tapered portion 11.21 has, at its end,
Each is connected to a rotating wheel 12.22.

The main body portion 10.20 and the tapered portion 1.1.
21 is composed of an elastic body with rubber lining on the surface of a metal core material (SUS304).

Furthermore, when the feed rollers 1 and 2 are in use, a constant pressure is applied from above and below. Further, the rotation shafts 12 and 22 are made of metal and rotatably supported by bearings.

Also, behind the feed roller 1.2.

As shown in FIG. 2, a roll coater 3 is arranged. The roll coater 3 is used to coat the surface of the thin plate 7 with resin.

Then, as shown in FIG. 2, the feed roller 1
．． 2 and the roll coater 3 are arranged with a gap S smaller than at least the length of the thin plate 7 in the longitudinal direction.

Next, nine effects will be explained.

That is, when using the conveying device for the thin plate 7 of this example, first the feed roller 1.2 and the roll coater 3 disposed behind it are rotated in the direction of the arrow. Next, a thin plate to be conveyed in front of the feed roller 1.2 is prepared. Next.

The thin plate 7 is fed into the feed rollers 1 and 2 from the F direction. Then, the I plate 7 is conveyed to the roll coater 3 in a state where it is pressed and sandwiched between the feed rollers 1 and 2.

At this time, when the thin plate 7 is fed into the feed roller 1.2, both ends 72,72 of the thin plate 70 are pinched by both ends of the feed roller 1.2. Tapered portions 11.21 are provided at both ends of the feed rollers 1 and 2.
is the provision. Therefore, both ends 72,72 of the thin plate 7
, even if there is a concave warped portion 73, this concave warped portion 73
are only loosely pressed by the tapered portions 11.21 of the rollers from above and below. In other words, the concave warped portion 7
3 is not strongly pressed down to the horizontal position of the I-plate main body 71, but 2 is held down, for example, to an intermediate position. Also,
Since this tapered portion 11.21 has a smaller diameter on the outside, the concave warped portion 73 inserted into this portion opens outward.

In other words, the I plate 7 is opened in a flat direction.

Therefore, the concave warped portion 73 of the thin plate 7 will not be bent or damaged.

Further, when the thin plate 7 is transported from the feed rollers 1 and 2 to the roll coater 3, the warp of the concave warped portion 73 of the thin plate 7 is corrected by the tapered portion 11.21. Further, the distance S between the feed roller 1.2 and the roll coater 3 is smaller than the length of the thin plate 7.

Therefore, when one plate 7 is sent to the roll coater 3.

The conveyance 73 is conveyed in a corrected state. Therefore,
Although the roll coater 3 does not have a tapered portion at both ends, it can uniformly coat the surface of the thin plate 7 with resin while conveying the thin plate 7 in a smooth state. Further, this also applies when the thin plate 7 is conveyed in the D direction after the roll coater 3.

As described above, according to this example, the tips at both ends of the thin plate will not be bent or damaged.

Then, resin can be applied to the surface of the thin plate in a smooth state.

Second Embodiment A conveying device according to this embodiment will be explained with reference to FIGS. 3 and 4.

That is, in the conveying device of this example, a belt sander 4 is provided in place of the roll coater 3 in the first example. The other configurations are the same as those of the first embodiment.

The belt sander 4 is a device for grinding the resin applied to the surface of the thin plate 7 in order to make it smooth after being heated and hardened. and.

The belt sander 4 is arranged behind the feed roller 1.2.

The belt sander 4 includes an upper belt 41 and a lower belt 42, and rollers 4 are provided at both ends of each belt.
11,421 will be installed. and.

Both belts 41 and 42 are spaced apart by a clearance M that is approximately the same as the thickness of the thin plate 7, as shown in FIG.

The reason for this is to ensure that the thickness of the Wi plate 7 and the concave warped portions 73 at both ends are smoothly sandwiched between the two feed rollers 411 and 421. Further, the distance S between the feed rollers 1 and 2 and the belt sander 4 is made smaller than the length of the thin plate 17.

Therefore, the thin plate 7 is first fed into the feed roller 1.2 from the E direction. Here, the thin plate 7 is in a state in which the concave warps 73 and 73 at both ends thereof have been corrected. and,
Belt sander 4I! 4 feeding roller 411,4
The 2 parts are smoothly clamped under pressure between 21.

Therefore, according to the three examples, the tips of both ends of the I plate are not bent or damaged.

Then, the resin surface of the m-plate can be ground to a smooth state. Furthermore, the same effects as in the first embodiment can be obtained.

Third Embodiment A conveying device according to this embodiment will be explained with reference to FIGS. 5 and 6.

That is, the conveyance device of this embodiment uses only the roll 1 of the second embodiment, and the belt sander 4 is combined with an upper roll 51, 52 and a lower belt 6. The other configurations are the same as those of the second embodiment.

Therefore, the upper rolls 51, 52 and the lower belt 6 are first rotated in the direction of the arrow. Next, the thin plate 7 is attached to the lower belt 6
Then, the thin plate 7 is conveyed from the H direction by the feed roller 1 and the lower belt 6 while being held under pressure.

As a result, the concave warped portion 73 of the thin plate 7 is corrected by the roll l and the lower belt 6. As a result, the resin on the surface of the thin plate 7 is ground smooth by the upper belts 51, 52 and the lower belt 6 of the belt sander 4.

In this way, according to this example, the tips of both ends of the plate 7 will not be bent or damaged. Then, the resin surface of the thin plate 7 can be ground smooth. Furthermore, the same effects as in the second embodiment can be obtained.

[Brief explanation of drawings]

1 and 2 show a thin plate conveying device according to the first embodiment, FIG. 1 is a front view thereof, FIG. 2 is a side view thereof, and FIGS. FIG. 3 is a perspective view of such a thin plate conveying device. FIG. 4 is a side view thereof, FIGS. 5 and 6 show a thin plate conveying device according to the third embodiment, FIG. 5 is a perspective view thereof, FIG. 6 is a side view thereof, and FIGS. 9 shows a conventional example, FIG. 7 is a perspective view thereof, FIG. 8 is a side view thereof, and FIG. 9 is a plan view showing a state in which the tip of the printed wiring board is bent. l. 10゜11゜3゜4゜41゜42゜51゜6゜7゜72゜73゜231. Feed roller 20, main body. 21, Taper part. 8. Roll coater 9, belt sander 1. top roll. 1. bottom roll. 52,,Top roll. 9. Lower belt 8. Both ends of the thin plate 11. 1. Concave warped part. Application agent Biden Co., Ltd. Yoshiyasu Takahashi Figure 1 Figure 2 Figure 5 Figure et al. 2 Figure 3/1 Figure 4 Figure 7

Claims (1)

[Scope of Claims] A thin plate conveying device having a feed roller for feeding a thin plate, wherein the feed roller has a tapered portion at both ends thereof.