JPS6317767A - Printed board aligner - Google Patents

Abstract

PURPOSE:To make the accurate alignment of a printed board and its damage prevention attainable, by receiving the printed board on a pan, going down by a vertical mechanism, and making it so as to contact with a substrate pressing member if it is moved horizontally by a traverse mechanism and to be stacked on the preceding substrate in consecutive order. CONSTITUTION:A printed board 60 is gripped by a takeout and transferred onto a pan 30, and when it is detected by a counter, an electric motor 26 operates, rotating an external thread shaft 18, and the pan 30 goes down, and when it is detected by a switch 34, the pan 30 comes to a stop. Simultaneously a piston rod is extended longer, a horizontal rod 28 and the pan 30 are moved to the left, whereby the printed board 60 on the pan 30 tries to move to the left together, but is movement is checked by a printed board pressing member 40. When the pan 30 is completely moved up to the left position, the printed board 60 is dropped on a belt conveyor 52 or the printed boards so far stacked. Thus, a falling distance of the printed board is little, and since it is dropped after being pushed by the substrate pressing member, it is accurately aligned, thus no damage happens there.

Description

[Detailed description of the invention] (b) Industrial application field The present invention relates to a printed circuit board alignment device.

(B) Prior Art When manufacturing printed circuit boards, printed circuit boards punched out by a press are taken out from the mold by a printed board take-out device and stacked on, for example, a belt conveyor. That is, the printed circuit board removal device releases the printed circuit board above the belt conveyor and causes it to fall onto the belt conveyor.

(c) Problems to be Solved by the Invention However, in the method of stacking printed circuit boards as described above, the printed circuit boards are dropped onto the held container from a relatively high position, so the alignment of the printed circuit boards is not correct. However, there was a problem that it was not suitable for handling in subsequent steps. Furthermore, since the printed circuit board was dropped from a high position, there was a possibility of damaging the printed circuit board. The present invention aims to solve these problems.

(d) Means for solving the problems The present invention solves the above problems by receiving the printed circuit boards on a tray, moving the tray vertically and horizontally, and stacking the printed circuit boards one after another. . That is, the printed circuit board aligning device according to the present invention includes a tray (30) on which a printed circuit board is placed, a vertical movement mechanism (such as an electric motor 26, a male screw shaft 18, and a pole nut 16) that moves the tray up and down, and a horizontal movement mechanism for moving the tray up and down. A lateral movement mechanism (air cylinder 32, horizontal rod 28, etc.) that moves the tray in the horizontal direction, and a slit in the tray that allows the tray to move vertically and horizontally but prevents the printed circuit board on the tray from moving horizontally. (42) and a printed circuit board pressing member (40) provided vertically at a position penetrating through the board (42). Note that the symbols in parentheses indicate corresponding members in the embodiments described later.

(e) Operation: A printed circuit board is transferred onto the tray that has moved to the upper position by the printed circuit board take-out device. When the printed circuit board is placed on the tray, the tray is lowered by the vertical movement mechanism. When the saucer is lowered to a predetermined position, the lateral movement mechanism is activated and the saucer is moved horizontally. The printed circuit board on the tray comes into contact with the printed circuit board pressing member and is prevented from moving, so when the tray moves completely horizontally, the printed circuit board loses its support from the tray and slides onto the printed circuit boards that have been stacked up to that point. Can be stacked. The printed circuit boards are stacked one after another in a securely aligned state due to stiffness.

(f) Examples Examples of the present invention are shown in FIGS. 1 to 3. A vertically moving member 14 is attached to two guide shafts 12 vertically fixed to the frame 10.
is slidably guided. The vertically movable member 14 has a pole nut 16, which engages with an external thread 18.

Male screw @1 rotatably supported with respect to frame 10
8 is connected to an electric motor 26 for vertical movement via a pulley 20, a belt 22, and a pulley 24, and can be driven to rotate. Two horizontal rods 28 are provided on the vertically movable member 14 so as to be movable in the horizontal direction, and a saucer 30 is attached to the tip of the horizontal rods 28.

The horizontal rod 28 is connected to a piston rod of an air cylinder 32 fixed to the vertically moving member 14 via a bracket 33. A reflective photoelectric switch 34 is attached to the lower surface of the saucer 30. Two printed circuit board pressing members 40 extending vertically are provided on a plate 38 attached to the frame 10 via a bracket 36. The printed circuit board pressing member 40 is in a positional relationship with the tray 30 as shown in FIG. 3, that is, the printed circuit board pressing member 40 passes through the slit 42 of the tray 30. A side plate 44 is attached to the frame 10, and a door 48 that can be opened and closed by a hinge 46 is provided on the side plate 44. A piston rod of an air cylinder 50 fixed to the side plate 44 is connected to the door 48, and the door 48 is opened and closed thereby. The door 48 is provided with a guide member 62 for guiding a printed circuit board 60 (shown by imaginary lines in FIG. 3). Further, the door 48 is also provided with a photoelectric switch 64.

A belt conveyor 52 is provided below the saucer 30. A photoelectric switch 54 is installed on the end point side of the belt conveyor 52.
is provided.

Next, the operation of this embodiment will be explained. The printed circuit board 60 punched out by the press mold is gripped by a printed circuit board ejecting device (not shown), and placed in the receiving tray 30.
transferred above. At this time, the saucer 30 is stopped at the upper position as shown in FIG. Moreover, the air cylinder 32 is in a contracted state. For example, when the counter detects that three printed circuit boards 60 are placed on the tray 30, the electric motor 26 is activated to rotate the male screw @18 via the pulley 24, belt 22, and pulley 20. As a result, the ball nut 16 lowers the receiver Jl 130. When the photoelectric switch 34 detects that the saucer 30 has descended to a predetermined position, the motor 26 stops rotating and the saucer 30 stops. The photoelectric switch 34 senses the reflective plate 39 attached to the plate 38 and stops at a predetermined position when there is no printed circuit board on the belt conveyor 52, and stops the printed circuit board when there are printed circuit boards stacked on the belt conveyor 52. It is sensed and the saucer 30 is stopped (see Figure S4). Therefore, saucer 3
0 is stopped at a predetermined distance above the belt conveyor 52 or at a predetermined distance from the top surface of the stacked printed circuit boards. At the same time as the saucer 30 stops, the air cylinder 32 is activated to extend the piston rod. As a result, the horizontal rod 28 and the receiver 30 attached thereto move to the left in FIG. saucer 3
The printed circuit board 60 on the 0 side tries to move to the left together with the receiving IL 30, but the movement is prevented by the printed circuit board pressing member 40. As a result, when the tray 30 is completely moved to the left side position, the printed circuit board 60 falls onto the hexagonal hair 52 or onto the already stacked printed circuit boards. After dropping the printed circuit board 60, the saucer 30
rises again and moves to the right, returning to the initial position shown in FIG. Thereafter, similar operations are repeated to sequentially stack printed circuit boards on the belt converter 52. When the printed circuit boards are piled up to a predetermined height as shown in FIG. 5, the photoelectric switch 64 senses this and operates the air cylinder 50 to open the door 48 and at the same time rotate the belt conveyor 52. The belt conveyor 52 moves only for the time set by the timer. When the stacked printed circuit boards have been moved a predetermined distance, the door 48 is closed and the same operation as described above is repeated. By doing so, as shown in FIG. 6, a pile of printed circuit boards is formed on the belt conveyor 52, stacked at a constant height at predetermined intervals. A photoelectric switch 54 provided at the end of the belt conveyor 52 detects that a pile of printed circuit boards has reached this point, notifies this and stops the belt conveyor 52 from rotating any further.

As described above, since the printed circuit boards are stacked one by one using the receiving tray 30, the falling distance of the printed circuit boards is very small, and the printed circuit boards fall while being pressed against the printed circuit board pressing member 40, so that the printed circuit boards are accurately aligned. It is piled up. This facilitates handling of the printed circuit board in subsequent steps. Also, since the falling distance is small, the printed circuit board will not be damaged.

(g) As described in detail, according to the present invention, the printed circuit boards are stacked one after another using the tray, so that the printed circuit boards can be stacked in a securely aligned state, and The possibility of damaging the board is reduced.

[Brief explanation of the drawing]

FIG. 1 is a front view of a printed circuit board alignment device according to the present invention;
FIG. 2 is a side view of the printed circuit board alignment device shown in FIG.
Figure 3 shows III of the printed circuit board alignment device shown in Figure 1.
-A view taken along line III, Figure 4 is a diagram schematically showing the state in which the tray is lowered, Figure 5 is a diagram showing the state in which the printed circuit boards are stacked, and Figure 6 is a diagram showing the state in which the printed circuit boards are stacked on the belt conveyor. FIG. 3 is a diagram showing a printed circuit board. 26...Electric motor (vertical movement mechanism), 30...Saucer, 3
2... Air cylinder (lateral movement mechanism), 34... Photoelectric switch, 40... Printed circuit board pressing member, 42...
- Slit, 60... Printed circuit board, 64... Photoelectric switch.

Claims (1)

[Claims] 1. In a printed circuit board alignment device that aligns and stacks printed circuit boards conveyed by a printed circuit board take-out device in a predetermined location, the device comprises: a tray for placing the printed circuit boards on the top surface; and a vertical movement mechanism for moving the tray up and down. and a lateral movement mechanism that moves the saucer horizontally, and a lateral movement mechanism that passes through the slit in the saucer so as to allow vertical and horizontal movement of the saucer but prevent horizontal movement of the printed circuit board on the saucer. A printed circuit board alignment device comprising: a vertically provided printed circuit board pressing member. 2. The printed circuit board arrangement according to claim 1, wherein the tray is provided with a photoelectric switch for detecting the stacked printed circuit boards, stopping the tray from descending, and starting the horizontal movement. Device. 3. The predetermined place for stacking the printed circuit boards is on a belt conveyor, and a photoelectric switch is provided for detecting that the printed circuit boards have been stacked to a predetermined height and starting the rotation of the belt conveyor. The printed circuit board alignment device according to item 1 or 2.