Guiding board for a ball placement machine

Abstract

A guiding board for a ball placement machine has a board body. The board body has a top surface, a bottom surface, a ball-dropping area, and multiple guiding grooves. The ball-dropping area is defined on the top surface. The guiding grooves are defined in the ball-dropping area and are parallel to each other. Each guiding groove has a bottom and multiple ball-dropping holes defined in the bottom and extending through the bottom surface of the board body.

Claims

1. A guiding board for a ball placement machine comprising a board body having a top surface; a bottom surface; a ball-dropping area defined on the top surface; and multiple guiding grooves defined in the ball-dropping area and being parallel to each other, wherein each guiding groove has a bottom and multiple ball-dropping holes defined in the bottom and extending through the bottom surface of the board body, wherein the board body further has a ball-collecting area defined on the top surface of the board body and located at a position being adjacent to a front end of the ball-dropping area; multiple collecting grooves defined in the ball-collecting area and respectively aligned and communicating with the multiple guiding grooves, wherein each collecting groove is formed as a straight line in cooperation with a corresponding one of the guiding grooves; a retrieval area defined on the top surface of the board body at a position being adjacent to a rear end of the ball-dropping area; and multiple ball-retrieval holes defined in the retrieval area and formed through the top surface and the bottom surface of the board body.

2. The guiding board as claimed in claim 1, wherein the board body further has multiple elongated protrusions formed on and protruding from the top surface of the board body, being parallel to each other, and located respectively between adjacent two of the guiding grooves.

3. The guiding board as claimed in claim 2, wherein each guiding groove has a U-shaped cross section.

4. The guiding board as claimed in claim 1, wherein a distance defined between the bottom of each guiding groove and the bottom surface of the board body is smaller than a distance between the top surface and the bottom surface of the board body.

5. The guiding board as claimed in claim 1, wherein each guiding groove has a U-shaped cross section.

6. The guiding board as claimed in claim 4, wherein the board body further has multiple elongated protrusions formed on and protruding from the top surface of the board body, being parallel to each other, and located respectively between adjacent two of the guiding grooves.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective view of a guiding board in accordance with the present invention;

(2) FIG. 2 is a top view of the guiding board in FIG. 1;

(3) FIG. 3 is an enlarged cross sectional side view of the guiding board in FIG. 1;

(4) FIG. 4 is a cross sectional side view of another embodiment of a guiding board in accordance with the present invention;

(5) FIG. 5 is an enlarged operational perspective view of the guiding board in FIG. 1;

(6) FIG. 6 is an enlarged operational top view of the guiding board in FIG. 1;

(7) FIG. 7 is an enlarged operational side view in partial section of the guiding board in FIG. 1;

(8) FIG. 8 is another enlarged operational side view in partial section of an alternative embodiment of a guiding board in accordance with the present invention;

(9) FIG. 9 shows operational perspective views of a conventional ball placement device;

(10) FIG. 10 shows operational side views in partial section of another conventional ball placement device;

(11) FIG. 11 is an operational side view in partial section of another conventional ball placement device; and

(12) FIG. 12 is a top view of a cover of the conventional ball placement device in FIG. 11.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENT

(13) With reference to FIGS. 1 to 3, a guiding board for a ball placement machine in accordance with the present invention comprises a board body 10. The board body 10 has a top surface, a bottom surface, a ball-dropping area 11, multiple guiding grooves 12, a ball-collecting area 14, and a retrieval area 17. The ball-dropping area 11 is defined on the top surface. The guiding grooves 12 are defined in the ball-dropping area 11 and are parallel to each other. Each guiding groove 11 has a bottom and multiple ball-dropping holes 13 defined in the bottom of the guiding groove 12 and extending through the bottom surface of the board body 10.

(14) The ball-collecting area is 14 defined on the top surface of the board body 10 and is located at a position being adjacent to a front end of the ball-dropping area 11. Multiple collecting grooves 15 are defined in the ball-collecting area 14 and are aligned and communicate with the multiple guiding grooves 12 respectively.

(15) In addition, a distance defined between the bottom of each guiding groove 12 and the bottom surface of the board body 10 is smaller than a distance between the top surface and the bottom surface of the board body 10.

(16) With reference to FIG. 4, in another embodiment, the board body 10 further has multiple elongated protrusions 16 formed on and protruding from the top surface of the board body 10, being parallel to each other, and located respectively between adjacent two of the guiding grooves 12.

(17) Additionally, the cross section of each guiding groove 12 may be curved, U-shaped, V-shaped, rectangular or inverted trapezoidal.

(18) The retrieval area 17 is defined on the top surface of the board body 10 at a position being adjacent to a rear end of the ball-dropping area 11 opposite the ball-collecting area 14. Multiple ball-retrieval holes 18 are defined in the retrieval area 17 and are formed through the top surface and the bottom surface of the board body 10.

(19) With reference to FIGS. 5 to 7, when the guiding board is applied to a printing technique, the board body 10 is attached to a substrate 21 having multiple ball bases 22. A ball case holding conducting balls 20 is moveably attached to the top surface of the board body 10. The conducting balls 20 fall onto the top surface of the board body 10 via the bottom opening of the ball case. The conducting balls 20 will enter the collecting grooves 15 in the ball-collecting area 14. With the movement of the ball case relative to the board body 10, the conducting balls 20 will enter the guiding grooves 12 from the collecting grooves 15. Consequently, the conducting balls 20 will enter respectively the ball-dropping holes 13 in the bottoms of the guiding grooves 12. In this embodiment, the diameters of the ball-dropping holes 13 are larger than the diameters of the conducting balls 20. Thus, the conducting balls 20 will drop into the ball bases 22 on the substrate 21 via the ball-dropping holes 13. With the collection effect provided by the collecting grooves 15 and the guiding effect provide by the guiding grooves 12, each ball-drooping hole 13 is actually provided with a conducting ball 20. In addition, the conducting ball 20 may be moved into the ball-dropping holes 13 by a brush, pneumatic power, inclining or shaking the board body 10.

(20) With reference to FIG. 1, when all of the ball-dropping holes 13 are provided with conducting balls 20, the surplus conducting balls 20 will be moved to the retrieval area 17 and fall into the ball-retrieval holes 18. Accordingly, the conducting balls 20 in the ball-retrieval holes 18 can be retrieved for use.

(21) With reference to FIGS. 1, 6, and 8, in an alternative embodiment, when the guiding board is applied with a suction device, the diameters of the ball-dropping holes 13 are smaller than the diameters of the conducting balls 20. Thus, the conducting balls 20 are held in the ball-dropping holes 13 and can be picked and sucked by a suction device. Accordingly, the probability that the suction device does not suck the conducting balls 20 can be reduced.

(22) In operation, when the ball case is moved relative to the board body 10 in a direction, the suction device can pick the conducting balls 20 from the board body 10 in a first round. After that, the ball case can be moved relative to the board body 10 in a reversed direction, and the suction device can pick the conducting balls 20 in a second round. Accordingly, the ball placement process is efficient.

(23) Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.