JPS62126057A - Transporting device for printed circuitboard - Google Patents

Abstract

PURPOSE:To facilitate the first catching for a printed circuitboard by arranging a pair of rollers so as to be deflected in the longitudinal direction or cross each other on the plane parallel to the passage on the printed circuitboard. CONSTITUTION:Only a roller 5 arranged on the underside out of the rollers 5 and 5' is revolution-driven in the direction of arrow by a motor, and the upper-side roller 5' is revolved freely in the opposite direction to the underside roller 5 by the frictional force generated between the printed circuitboard 4 and the roller surface. Further, the upper-side roller 5' is arranged so that the revolution shaft is a little deflected in the direction of advance of the printed circuitboard 4 from the revolution shaft of the underside roller 5. Since each revolution shaft of the upper- and under-side rollers 5 and 5' is arranged so as to be a little deflected along the direction of advance of the printed circuitboard 4, the printed circuitboard 4 can be easily caught into between the rollers free from slip in simple ways, and the printed circuitboard can be fed into the next process certainly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a printed wiring board transport device used when transporting a printed wiring board, for example, from a plating process to a hot water washing and polishing process.

[Technical Background of the Invention] Generally, when covering lands, through-holes, pattern parts, etc. of a printed wiring board with solder, flux is applied to the solder-plated solder at a predetermined location, and then flux is applied to the solder-plated solder. The process involves passing it through an infrared furnace to melt the solder, and then washing and polishing the surface with hot water.

When solder is applied to these parts by a dip method, flux is first applied to the predetermined parts, solder dip is performed, and then the surface is washed and polished with hot water.

In any of these cases, as shown in Figure 3,
In front of the hot water washing and polishing device (not shown), a pair of rollers 2.2' with the same diameter are driven to rotate in opposite directions (indicated by arrows in the figure) with the passage of the printed wiring board 1 vertically in between. They are arranged facing each other, and the printed wiring board 1 is sandwiched between them and forcibly transported to a hot water washing and polishing process.

[Problems with the Background Art] However, in such a conveying device, the rotation axes of the rollers 2 and 2' are arranged parallel to each other on the same plane perpendicular to the direction of movement of the printed wiring board 1. Therefore, slippage occurs between the surface of the transferred printed wiring board 1 covered with the slippery flux film and the surface of the roller 2.2'.

Therefore, the printed wiring board 1 is connected to these rollers 2.2.
'There was a problem that it was difficult to get caught between the surfaces and it got stuck there.

[Object of the Invention] The present invention has been made to solve these problems, and provides a conveying device that can easily hold a printed wiring board in its mouth and can reliably send it to the next process without causing clogging. The purpose is to

[Summary of the Invention] That is, the printed wiring board conveyance device of the present invention is a printed wiring board conveyance device in which a pair of rollers, at least one of which is rotationally driven by a motor, are arranged vertically opposite to each other with a path of the printed wiring board in between. The first gripping of the printed wiring board is facilitated by arranging the pair of rollers so that they are shifted back and forth or intersected with each other in a plane parallel to the path of the printed wiring board. be.

[Embodiments of the invention] The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 is a front view showing an embodiment of the present invention.

In this figure, reference numeral 3 indicates a conveying device, and this device is constructed by disposing a pair of rollers 5.5' having the same diameter and facing each other across the path of the printed wiring board 4 from above and below.

In the device of this embodiment, these rollers 5.5'
Of these, only the lower roller 5 is rotated by a motor in the direction of the arrow, and the upper roller 5' is rotated by the lower roller 5 due to the frictional force between the roller surface and the printed wiring board 4. It is configured so that it can rotate freely in opposite directions.

Roughly the upper roller 5' is arranged with its rotational axis shifted by a slight distance in the traveling direction of the printed wiring board 4 from that of the lower roller 5.

The deviation dimension (J!,) of this rotation axis is 70mTO in diameter.
In the case of a normal size roller of φ 5.5', approximately 5TnTA is appropriate.

In the conveying device 3 configured in this way, the rotation axes of the upper and lower rollers 5, 5' are arranged with slight deviations along the traveling direction of the printed wiring board 4, so that printed wiring can be easily carried out without slipping. The substrate 4 is placed on a roller 5.
It can be held between the 5' faces and can be reliably fed to the next process as is.

FIG. 2 is a plan view showing another embodiment of the invention.

In this embodiment, a lower roller 5 rotationally driven by a motor is arranged such that its rotation axis is perpendicular to the traveling direction of the printed wiring board 4, and an upper roller 5' is rotated by a motor. The rotating shaft is arranged so as to be inclined by a small angle (θ) from the rotating shaft of the lower roller 5.

Also in the conveyance device 3 of the embodiment configured in this way,
Similar to the conveying device 3 of the above-described embodiment, the printed wiring board 4 can be easily held between the surfaces of the rollers 5 and 5', and the printed wiring board 4 will not be clogged.

[Effects of the Invention] As is clear from the above description, in the printed wiring board conveying device of the present invention, the rotation axes of the pair of rollers are shifted from each other in a direction parallel to or oblique to the traveling direction of the printed wiring board. Since the printed wiring board is placed between the O and R surfaces, it is easy to hold the printed wiring board between the O and R surfaces for the first time.

Therefore, even a substrate coated with 7lux or the like and prone to slip between it and the roller surface can be smoothly and reliably transported to the next step by the transporting device of the present invention.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a front view showing one embodiment of the printed wiring board transfer device of the present invention, Fig. 2 is a plan view showing another embodiment of the present invention, and Fig. 3 is a conventional It is a front view showing a printed wiring board conveyance device. 1.4......Printed wiring board 2.2', 5.5'...Roller 3...
・・・・・・・・・・・・・・・Transport device applicant
Toshiba Corporation Representative Patent Attorney Sasa Suyama - Figure 1 Figure 20 Figure 3

Claims (1)

[Claims] (1) In a printed wiring board conveyance device in which a pair of rollers, at least one of which is rotationally driven by a motor, are disposed vertically opposite to each other with a path of the printed wiring board in between, the pair of rollers are connected to the printed wiring board. A printed wiring board transport device characterized in that the printed wiring board transport devices are arranged so as to be shifted back and forth or to cross each other in a plane parallel to a passage.