JPH05152790A - Printed board conveyor - Google Patents

Abstract

PURPOSE:To accurately convey laminated printed boards one by one to a belt conveyor by sucking and separating without dropping in the steps of manufacturing a VTR, etc. CONSTITUTION:A bearer 3 for laminating and mounting printed boards is provided on a mainframe 2. A pair of suction pads 16, 16 means for sucking the boards and separating one by one are provided above the bearer 3. The pads 16, 16 are so provided as to be reciprocated to a belt conveyor by a rodless cylinder 10 in a printed board conveyor 1. A linear motor 8 for vertically moving the bearer 3 to the side of the pair of pads 16, 16 is provided in the mainframe of the conveyor 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board transfer device for adsorbing and separating stacked printed circuit boards one by one in a manufacturing process of a VTR or the like and transferring them onto a conveyor.

[0002]

2. Description of the Related Art For example, there is known a printed circuit board transfer device for adsorbing and separating printed circuit boards stacked one by one in a VTR manufacturing process and transferring them to a belt conveyor. This will be briefly described with reference to FIG. 3. Reference numeral 50 is a printed circuit board transfer device, and a plurality of prints 30 are stacked and mounted on a pedestal 52 mounted on an apparatus main body 51 of the printed circuit board transfer device 50. There is. This cradle 52
An air cylinder 54 that horizontally reciprocates along the guide rod 53 is provided above the belt conveyor 60 provided in the printed circuit board transfer device 50. A pad support plate 56 is provided at the tip of the rod 55 of the air cylinder 54, and a pair of suction pads 57, 57 are attached to the lower surface side of the pad support plate 56.
Then, the pair of suction pads 57, 57 descends through the air cylinder 54 to the uppermost printed circuit board 30 stacked on the pedestal 52, and the pair of suction pads 57, 5
At 7, the uppermost printed circuit board 30 is adsorbed and again raised via the air cylinder 54, and then the printed circuit board 30 is conveyed onto the belt conveyor 60.

[0003]

However, in the conventional printed circuit board transfer device 50, when the uppermost printed circuit board 30 stacked on the receiving table 52 is sucked and separated from the remaining printed circuit boards 30. , A pair of suction pads 57,
57 is moved up and down via the air cylinder 54, the number of the printed circuit boards 30 stacked on the pedestal 52 is reduced, and the pair of suction pads 57, 57 in the vertical direction. When the amount of reciprocal movement increases (for example, about 400 mm), the pair of suction pads 57, 5
During the period from the time when the printed circuit board 30 is sucked up to the time when the printed circuit board 30 is raised in FIG. 7, the suction of the pair of suction pads 57, 57 is likely to be unstable, and the printed circuit board 30 may be dropped or damaged due to the drop. There was a fear of giving. Further, when the vertical reciprocating amount of the pair of suction pads 57, 57 increases, it takes time to suck and separate the printed circuit board 30, and the belt conveyor 60.
There was a problem that it took a long time to transport to.

Therefore, according to the present invention, in the manufacturing process of a VTR or the like, the printed circuit boards can be accurately separated in a short time by adsorbing and separating the stacked printed circuit boards one by one without dropping them. A device is provided.

[0005]

A pedestal for stacking and mounting printed boards on the main body of the apparatus is provided, and an adsorption means for adsorbing the printed boards and separating them one by one is provided above the pedestal. In the printed circuit board transporting device in which the suction means can be reciprocally moved onto the conveyor by the transport means, drive means for moving the receiving table to the suction means side is provided in the apparatus body.

[0006]

When the printed circuit board is conveyed to the conveyor, first, the receiving table is raised by the driving means, and the uppermost printed circuit board stacked on the receiving table is raised to the suction means. next,
The uppermost printed circuit board on the pedestal is sucked and separated by the suction means, and is conveyed onto the conveyor by the conveying means.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a printed circuit board transporting device, which transports the printed circuit boards 30 one by one onto the belt conveyor 20 provided side by side. On the front side of the upper part 2a of the casing-type device body 2 of the printed circuit board carrying device 1, a rectangular plate-shaped pedestal 3 for stacking and mounting the above-mentioned printed circuit boards 30 is arranged, and on the upper part 2a. On the rear side, an inverted L-shaped stand portion 4 extending up to the belt conveyor 20 is provided upright. A side plate 5 having an operation panel 5a at the center is integrally attached to one side of the stand portion 4.

Four rods 6 are projectingly provided on the lower surface of the pedestal 3 on the side of each corner portion. Each rod 6 is slidably supported by four bushes 7 embedded in the upper portion 2a of the apparatus body 2. A linear motor (driving means) 8 is fixed to the lower surface of the upper portion 2a of the apparatus body 2.
The tip of the rod 9 of the linear motor 8 is fixed to the center of the lower surface of the pedestal 3, and the pedestal 3 is driven by the linear motor 8 so that the pedestal 3 and the pair of suction pads 16 and 16 to be described later are attached to the upper portion 2a of the apparatus main body 2. It is designed to move up and down.

A rodless cylinder (conveying means) 10 is provided in an opening 4b at the center of the front surface of the horizontal portion 4a of the stand portion 4.
Is buried. A small air cylinder 13 is attached to the slider 12 that slides on the pair of rods 11 of the rodless cylinder 10. This air cylinder 13
A pad support plate 15 is fixed to the lower end of the rod 14. A pair of V-shaped tip portions 15 of the pad support plate 15
An adsorption pad (adsorption means) 16 made of rubber and having an inverted conical cylindrical shape is provided on the lower side of a and 15a. The pair of suction pads 16 and 16 are connected to a compression pump (not shown) that creates a vacuum inside each suction pad 16. By making the inside of each suction pad 16 into a substantially vacuum state, the uppermost printed circuit board 30 on the receiving table 3 is sucked and separated into one sheet.

The pedestal 3 on the upper portion 2a of the apparatus body 2 is
An optical sensor 17 for detecting the presence or absence of the printed circuit board 30 is attached at a position facing the perforation 3a. Further, an optical sensor 21 for board detection is provided at a board placement position S where the board 30 of the belt conveyor 20 is placed.
Has been placed.

According to the printed board transfer device 1 of the above-described embodiment, when the uppermost printed board 30 stacked on the receiving table 3 on the apparatus main body 2 is transferred onto the belt conveyor 20, 3 is moved up by the linear motor 8 so that the uppermost printed circuit board 30 moves to the pair of suction pads 16,
Raise until it hits 16. Next, the pair of suction pads 16 and 16 are slightly lowered by the air cylinder 13 to form a sealed space between the pair of suction pads 16 and 16 and the uppermost printed circuit board 30, and then the inside of the pair of suction pads 16 and 16 is closed. The sealed space is evacuated to suck the topmost printed circuit board 30.

When the pair of suction pads 16, 16 are slightly raised by the air cylinder 13, the uppermost printed circuit board 30 is separated from the other printed circuit boards 30.
From this state, the pair of suction pads 16 and 16 are horizontally moved by the rodless cylinder 10 to the printed board mounting position S on the belt conveyor 20. Then, the pair of suction pads 16 and 16 are lowered by the air cylinder 13 to move the printed circuit board 30 to the printed circuit board mounting position S on the belt conveyor 20. Here, the vacuum state of the pair of suction pads 16 is released, and the printed circuit board 3 is moved to the printed circuit board mounting position S on the belt conveyor 20.
Place 0. When the printed circuit board 30 placed on the belt conveyor 20 is conveyed in a predetermined direction, and the optical sensor 21 for detecting the circuit board determines that there is no printed circuit board, the above operation is sequentially repeated and the printed circuit board 3 is repeated.
0 is continuously supplied on the belt conveyor 20. At this time,
The pedestal 3 is sequentially raised by the linear motor 8 by the thickness of the printed circuit board 30.

When the last printed circuit board 30 on the pedestal 3 is conveyed and the pedestal 3 is raised to the uppermost position, and the optical sensor 17 determines that the pedestal 3 has no printed circuit board, The cradle 3 is lowered to the lowest position by the linear motor 8. The pedestal 3 is lowered to the lowest position on the apparatus main body 2 and the printed circuit board 30 is replenished and restarted in a stopped state. Each of these operations can be performed by the operation panel 5a.

As described above, the worker once uses the apparatus main body 2
When the printed circuit board 30 is supplied to the upper pedestal 3, the printed circuit board 30 can be automatically and sequentially supplied onto the belt conveyor 20, thus reducing the number of steps. In addition, the printed circuit board 30 stacked on the pedestal 3 is attached to the pair of suction pads 16, 16.
In the case of sucking with, the cradle 3 side has a pair of suction pads 1
6 and 16 are sequentially raised, the pair of suction pads 16 and 16 and the lowermost printed circuit board 30 are attracted even when the lowermost printed circuit board 30 of the pedestal 3 is sucked and separated.
Since the interval between the two is small (about 30 mm), the time required for suctioning and separating the printed circuit board 30 can be short. Further, when the printed circuit board 30 is sucked by the pair of suction pads 16 and 16, the pedestal 3 is raised to raise the pair of suction pads 1.
Since the vertical distance between the pair of suction pads 16 and 16 can be small even when the suction pads 16 and 16 are separated one by one, the pair of suction pads 16 and 16 can surely suction the printed circuit board 30. The above-mentioned printed circuit board 30 at the time of adsorption and separation
Does not fall to the cradle 3 side. As a result, the printed circuit board 30 can be smoothly transported to the belt conveyor 20, and at the same time, the printed circuit board 3 can be transported.
It does not damage 0.

According to the above-described embodiment, the linear motor is used as the driving means for moving the pedestal up and down. However, the driving means is not limited to the linear motor, and various actuators such as an air cylinder can be used. .. Further, the conveyor is not limited to the belt conveyor.

[0017]

As described above, according to the present invention, the pedestal on which the printed circuit boards are stacked and mounted is provided on the main body of the apparatus, and the printed circuit boards are adsorbed above the pedestal and separated one by one. In the printed circuit board transport device in which the suction means for causing the suction means to be reciprocally moved onto the conveyor by the transport means is provided with the drive means for moving the cradle to the suction means side, the apparatus main body is provided. When adsorbing the printed circuit boards stacked on the table, the receiving table can be moved to the adsorbing means side to surely adsorb the printed circuit board by the adsorbing means. As a result, the printed boards stacked on the cradle can be reliably adsorbed and separated one by one, and can be conveyed onto the conveyor in a short time without being dropped.

[Brief description of drawings]

FIG. 1 is a perspective view of a printed circuit board carrying device according to an embodiment of the present invention.

FIG. 2 is a side view in which a main part of the printed circuit board transport device is cut away.

FIG. 3 is a schematic configuration diagram of a conventional printed circuit board transport device.

[Explanation of symbols]

1 ... Printed circuit board transporting device, 2 ... Device body, 3 ... Cradle,
8 ... Linear motor (driving means), 10 ... Rodless cylinder (conveying means), 16 ... Suction pad (suction means), 2
0 ... Belt conveyor, 30 ... Printed circuit board.

Claims (1)

[Claims] 1. A pedestal for stacking and mounting printed boards on an apparatus main body is provided, and an adsorption means for adsorbing and separating the printed boards one by one is provided above the pedestal, and the adsorption means is conveyed. A printed circuit board transporting device which is reciprocally movable onto a conveyor by means, wherein drive means for moving the receiving table to the suction means side is provided in the device body.