JPH0725420A - Printed base board sequently feeding mechanism - Google Patents

Abstract

PURPOSE:To reduce the size of a heating device and to surely convey a heated printed base board to the next process. CONSTITUTION:Plural supporting pins 13 and plural supporting pins 14 are continuously arranged in the vertical direction to a shaft 12 rotated by a rotary cylinder 15, and the supporting pins 13 and the supporting pins 14 are alternately arranged in the different directions, so that a printed base board can be surely fed in order in the lowering direction only by rotating the shaft 12 clockwise and counterclockwise alternately. As the supporting pin 13 and the supporting pin 14 are fixed in the shaft 12 with inclined from the shaft 12 in the falling direction of the printed base board, the printed base board can be supported at a point and dirt on the printed face can be prevented.

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 progressive feed mechanism, and more particularly to a printed circuit board progressive feed mechanism used in a printed circuit board drying apparatus.

[0002]

2. Description of the Related Art Conventionally, heating devices for printed circuit boards have been
A conveyor type heating device capable of heating a plurality of printed circuit boards at one time has been used to achieve a reduction in time in the manufacturing process. Such a conveyor type heating device has a vertical conveyor type heating device 31 as shown in FIGS.
And a horizontal conveyor heating device 41.

The vertical conveyor type heating device 31 includes a chain 33 to which a plurality of comb blade members 32 for mounting the printed circuit board R are fixed, a drive sprocket 34 for driving the chain 33, and a drive sprocket 34. A driven sprocket 35 that transmits power to the chain 33. The drive sprocket 34 and the driven sprocket 35 are installed in the vertical direction with respect to the conveyor type heating device 31 itself. For example, when the drive sprocket 34 is rotated in the clockwise direction, from the take-up portion A to the delivery portion C of the printed circuit board R. The printed circuit board R can be sufficiently heated in the moving time.

In the horizontal conveyor type heating device 41, a drive sprocket 44 and a driven sprocket 45 are laterally installed, and a storage member 42 for storing the printed circuit board R therein.
Are fixed to the chain 43. This storage member 4
The concave portion 4 on which the printed circuit board R can be leaned
2a is formed.

[0005]

However, in the vertical conveyor type heating device 31, the printed circuit boards R are moved in parallel, and the conveyor type heating device 31 itself becomes very large. there were. In addition, the collection section A
When the printed circuit board R placed in (1) is rotated clockwise at the turning point B, the comb blade-shaped member 32 is turned upside down, so that it falls onto the preceding comb blade-shaped member 32. As a result, the printed circuit board R cannot be placed on the fixed position of the comb blade-shaped member 32, and there is a risk that it cannot be reliably sent to the next step.

Further, since the printed circuit board R is mounted on the entire surface of the comb-blade member 32, the printed surface on which characters and the like are printed may be soiled by the comb-blade member 32. On the other hand, in the horizontal conveyor heating device 41, since the printed circuit board R is moved while leaning against the storage member 42 on the chain 43, the printed circuit board R cannot be heated on the return path of the conveyor device. Therefore, in order to secure the heating time, the distance between the driving sprocket 44 and the driven sprocket 45 must be increased, and the vertical conveyor type heating device 31
Similarly, there is a problem that the conveyor heating device itself becomes very large. Further, since the recess 42a of the storage member 42 for storing the printed circuit board R is supported by the end portion of the printed circuit board R, the printed circuit board R is connected to the chain 4
There was a risk of falling when moving above 3.

[0007]

An object of the present invention is to solve the above-mentioned conventional problems, and it is possible to downsize the heating device, and surely convey the heated printed circuit board to the next step. It is an object of the present invention to provide a printed circuit board progressive feeding mechanism capable of performing the above.

[0008]

A printed circuit board progressive feed mechanism of the present invention comprises a support pin for supporting the printed circuit board, a shaft in which a plurality of support pins are arranged in a vertical direction, and a rotating device for rotating the shaft. In the printed circuit board progressive feed mechanism, the support pins are arranged alternately in different directions. Further, the support pin is fixed in a state of being inclined from the shaft in the direction in which the printed circuit board falls.

[0009]

When the shaft is rotated clockwise by a predetermined angle, the printed circuit board placed on the support pin drops from the support pin and is supported by the lower support pin. The printed circuit board supported by the lower support pins falls from the lower support pins by rotating the shaft counterclockwise at a predetermined angle, and is further supported by the lower support pins. In this way, the printed circuit board can be reliably advanced downward by simply rotating the shaft alternately in the clockwise direction and the counterclockwise direction. As a result, the heating device can be downsized and the printed circuit board can be reliably transported to the next step. Also, since the support pin is fixed to the shaft in a state of being inclined from the shaft in the direction in which the printed circuit board falls, the printed circuit board can be supported at points, and the printed surface on which characters etc. are printed can be supported during the sequential feeding of the printed circuit board. It can be prevented from becoming dirty.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The heating device using the printed circuit board progressive feeding mechanism of the present invention, by heating the printed circuit board,
This prevents cracks during punching of through holes, outer shapes, insertion reference holes, etc. of a pattern-formed mass-produced printed circuit board, and dries the printed surface on which characters and the like are printed.

As shown in FIG. 2, such a heating device 1 has a suction cup fixed, and a suction member 4 for moving the printed circuit board R transported from the loading device 2 in the heating device 1, and a suction member 4 for transporting it. The printed circuit board R which is sequentially fed from the upper part to the lower part of the heating device 1 while supporting the printed circuit board R, and the printed circuit board R which is sequentially fed to the lower part by the sequential feed part 5.
Conveyor 6 that conveys the sheet to the positioning device 5, and the forward feeding section 5
It is composed of a heater 7 for heating the printed circuit boards R laminated in 1. and blower fans 8A, 8B for stirring the heat from the heater 7 so as not to stay in the heating device 1.

The suction member 4 can move the printed circuit board R by the cylinder stroke of the cylinder 10 fixed to the frame 9 of the heating device 1. Progressive unit 5
As shown in FIGS. 1A and 1B, a pair of sub-frames 11 engaged with supports 19A and 19B fixed to the frame 9 and a support pin 1 for supporting the printed circuit board R are provided.
It comprises a shaft 12 to which 3 and 14 are fixed, a rotary cylinder 15 which is a rotating means fixed to the frame 9, and a drive shaft 16 which is fixed to the rotary cylinder 15. The shaft 12 is formed into a prism, and the side surface 12 a of the shaft 12 has a support pin 13 and a side surface 12
Support pins 14 are alternately arranged in the vertical direction on b. The support pin 13 and the support pin 14 are the shaft 1
It is fixed in a state in which the printed circuit board R is inclined from 2 to the falling direction. As a result, the printed circuit board R can be supported by the points, so that it is possible to prevent the printed surface on which characters and the like are printed from being soiled during the sequential feeding of the printed circuit board R. Both ends of this shaft 12 are subframes 11
It is rotatably attached to.

Such a shaft 12 and a drive shaft 1
In order to engage with 6, the link 17 is fixed to the shaft 12 and the drive shaft 16, and the joint 18 is pivotally attached to each of the links 17. As a result, when the drive shaft 16 is rotated by 90 degrees clockwise, for example, in the rotary cylinder 15, the shaft 12 can also be rotated 90 degrees clockwise. That is, in FIG. 3 (a), (b),
As shown in FIGS. 4A, 4 </ b> B, 5 </ b> A, and 5 </ b> B, shafts 12 </ b> A and 1 </ b> A are rotated by the rotary cylinder 15 </ b> A.
When 2B is rotated 90 ° clockwise and the shafts 12C and 12D are rotated 90 ° counterclockwise by the rotary cylinder 15B, they can be dropped from the support pin 13a to the support pin 14a. Further, the shafts 12A and 12B are rotated 90 ° counterclockwise, and the shafts 12C and 12D are rotated clockwise 9 °.
When rotated by 0 °, the support pins 14a to 13b
Can be dropped into.

By alternately rotating the shafts 12A and 12B and the shafts 12C and 12D in the clockwise direction and the counterclockwise direction in this manner, the printed circuit board R can be reliably fed downward. Support pin 1 of the progressive feeding unit 5
The time for dropping the printed circuit board R from the position 3a onto the conveyor 6 depends on the rotation time of each shaft 12 and the support pin 13.
And the number of support pins 14 can be freely determined. Therefore, the heating time in the heating device 1 can be freely determined.

When the widths of the printed circuit boards R loaded on the progressive feeding unit 5 are different, the motor 20 fixed to the frame 9 is rotated to be screwed onto the screw shaft 21 fixed to the motor 20. The sub-frame 11 on the side of the stacking device 2 is moved so that the support position of the printed circuit board by the support pins 13 and 14 is adjusted to the width of each printed circuit board.

Since one end of the conveyor 6 is installed at a position where the printed circuit board R drops from the progressive feeding unit 5, and the other end of the conveyor 6 is projected outside the heating device 1, it is placed on the table of the positioning device 5. The printed board R can be dropped. The heater 7 is installed below the progressive feeding unit 5 so that heat is conducted to the entire printed circuit board R laminated on the progressive feeding unit 5. Further, blower fans 8A and 8B for stirring the heat generated by the heater 7
It is installed in the upper and lower positions. As a result, the heat that is biasedly retained in the heating device 1 is blown by the blower fan 8A,
Since it is stirred by the wind pressure of 8B, it becomes possible to keep the temperature in the heating device 1 constant.

The operation of the heating device 1 using the printed circuit board progressive feeding mechanism thus constructed will be described. From the loading device 2 in which the loading plate 21 is tilted and fixed so that the loaded printed circuit boards R are not collapsed, the printed circuit board R is adsorbed by using the arm 22 with a suction cup installed in the loading device 2. At this time, since the state of the suction cup arm 22 before the suction operation is horizontal, the suction cup arm 22 is rotated so as to be parallel to the printed circuit board R loaded on the loading plate 21. After sucking the end R'of the printed circuit board R by the suction cup 22a of the suction cup arm 22, the suction cup arm 22 is returned to the horizontal position to become the arm of the suction member 4 of the heating apparatus 1 at a predetermined position. The printed circuit board R is conveyed to the position where is contracted.

At this position, the printed circuit board R is sucked by the suction cup of the suction member 4, and the suction state of the suction cup 22a of the arm 22 with suction cup is released. The adsorbing member 4 conveys the sucking member 4 of the adsorbing member 4 to the adsorbed state by releasing the adsorbing member 4 from the advancing unit 5 to the printed circuit board dropping point. As a result, the printed circuit board R
Are point-supported by support pins 13a fixed to the shafts 12A, 12B, 12C and 12D, respectively.

By rotating the drive shaft 16A clockwise by 90 ° by the rotary cylinder 15A, the shafts 12A and 12B are rotated clockwise by 90 ° through the joint 18A, and the drive shaft 16B is rotated counterclockwise by the rotary cylinder 15B. By rotating the shafts 12C and 12D by 90 ° in the direction, the shafts 12C and 12D are rotated counterclockwise by 90 ° through the joint 18B. As a result, the printed circuit board R that is point-supported by the support pins 13a
Can be dropped onto the support pin 14a.

By rotating the shafts 12A and 12B and the shafts 12C and 12D alternately in the clockwise direction and the counterclockwise direction in this manner, the printed circuit board R supported by the lowermost support pins 14 of the progressive feeding unit 5 is conveyed to the conveyor. It falls to 6. The printed board R dropped on the conveyor 6 is heated by the heating device 1.
It is transported to the outside, placed on the table of the positioning device 3 in the next step, and positioned so that it can be accurately transported to the press working reference position of the press machine (not shown).

Although the support pin 13 and the support pin 14 are fixed to the shaft 12 in an L-shape in this embodiment, the present invention is not limited to this, and the support pin 1 is fixed to the shaft 12.
3 and the support pin 14 may be alternately fixed in a cross shape. In this case, the printed circuit board R can be fed downwards only by rotating the shaft 12 in one direction.

The printed circuit board progressive feeding mechanism of the present invention has been applied to a printed circuit board heating device, but the invention is not limited to this, and any device may be used as long as a flat plate such as a printed circuit board is fed from top to bottom. May be used.

[0023]

As is clear from the above embodiments, in the printed circuit board progressive feeding mechanism of the present invention, a plurality of support pins are vertically connected to the shaft rotated by the rotating means,
Further, since the support pins are alternately arranged in different directions, the printed circuit board can be surely advanced downward by merely rotating the shaft alternately in the clockwise and counterclockwise directions. As a result, the heating device can be downsized, and the printed circuit board can be reliably transported to the next step.

Further, since the support pin is fixed to the shaft in a state where the support pin is inclined from the shaft in the direction in which the printed circuit board falls, the printed circuit board can be supported by points, and characters or the like are printed during the sequential feeding of the printed circuit board. It is possible to prevent the printed surface from becoming dirty.

[Brief description of drawings]

1A and 1B are configuration diagrams showing an embodiment of a printed circuit board progressive feeding mechanism of the present invention, in which FIG. 1A is a detailed view and FIG. 1B is a sectional view taken along line AA.

FIG. 2 is an explanatory diagram of the use of a heating device to which the printed circuit board progressive feeding mechanism of the present invention is applied.

3A and 3B are operation explanatory views of a printed circuit board progressive feeding mechanism of the present invention, in which FIG. 3A is a top view and FIG. 3B is a side view.

FIG. 4 is an operation explanatory view of the printed circuit board progressive feeding mechanism of the present invention, in which (a) is a top view and (b) is a side view.

5A and 5B are operation explanatory views of the printed circuit board progressive-feed mechanism of the present invention, in which FIG. 5A is a top view and FIG. 5B is a side view.

FIG. 6 is a configuration diagram of a conventional printed circuit board progressive feed mechanism.

FIG. 7 is a configuration diagram of a conventional printed circuit board progressive feed mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Heating device 9 ... Frame 11 ... Subframe 12 (12A, 12B, 12C, 12D) ... Shaft 13 (13a, 13b ...) ... Support pin 14 (14a, 14b ...) ... Support pin 15 (15A, 15B) ... Rotary cylinder 16 (16A, 16B) ... Drive shaft 17 (17A, 17B) ... Link 18 (18A, 18B) ... Joint

Claims (2)

[Claims] 1. A printed circuit board progressive feed mechanism comprising a support pin for supporting a printed circuit board, a shaft in which a plurality of the support pins are vertically arranged, and a rotating means for rotating the shaft. A printed circuit board progressive feed mechanism, wherein the support pins are alternately arranged in different directions. 2. The printed circuit board progressive feeding mechanism according to claim 1, wherein the support pin is fixed in a state of being inclined from the shaft in a direction in which the printed circuit board falls.