JP3827862B2 - Edge finishing equipment for plate materials - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ridge line finishing apparatus for a plate material, and more specifically, a plate material such as a printed circuit board or a resin molded product formed in a square shape, having at least one step portion on its side, and the step portion. The present invention relates to a ridge line finishing apparatus for a plate material that removes undesirable unwanted objects such as burrs and dust from a plurality of ridge lines.
[0002]
[Prior art]
For example, when obtaining circuit boards used in electronic devices, transparent electrode substrates for liquid crystal display panels, etc., usually a large mother board is divided into multiple sides, and wiring is patterned on each side at once. Each substrate is cut out from the mother substrate (so-called multiple chamfering).
[0003]
Cutting out from the mother substrate is performed by a method of cutting with a high-speed rotary blade or a method of inserting a V-shaped groove and folding it off from that portion. May adhere. Further, in the case of a plate material such as a resin substrate formed by molding, burrs may occur along the mold mating surface.
[0004]
[Problems to be solved by the invention]
Since such burrs and chips often cause defects, it is necessary to remove them. Conventionally, this is done manually using a knife, brush or high-pressure air blowing nozzle, so work efficiency is improved. Is bad.
[0005]
However, deburring can be automatically performed by fixing the blade so as to rub against the side of the substrate along the substrate conveyance path and feeding the substrate into the conveyance path.
[0006]
However, even if it is automated in this way, as shown in the enlarged sectional view of FIG. 10, for example, two step portions 1 a and 1 b are formed on the side 2 of the substrate 1. When there are three ridgelines C1, C2 and C3 on side 2, it is necessary to add a blade and adjust the angle accordingly, and the mechanism becomes complicated. There arises a problem that the mounting and adjustment work becomes complicated.
[0007]
The present invention has been made to solve such a problem, and its purpose is to deburr the ridge lines from the ridge lines even if the plate has a plurality of ridge lines on one side. It is an object of the present invention to provide a ridge line finishing apparatus for a plate material that can be carried out.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a plate material such as a printed circuit board formed in a square shape, and has at least one step portion on its side, and burrs and dust are formed from a plurality of ridge lines by the step portion. In a ridge line finishing apparatus for removing undesirable unnecessary materials such as plate material conveying means for conveying the plate material along a plane path parallel to the plate surface, and each ridge line of the plate material on the side of the plane path Scraping means including a plurality of squeegee blades arranged so as to come into contact with each other.
[0009]
In the present invention, the squeegee blades are held by the same holding means through spacers so that the squeegee blades are parallel to each other. The angles are preferably different from each other.
[0010]
In this case, it is preferable that the squeegee blades have different lengths from their respective base end portions to end surfaces that contact the ridge lines.
[0011]
Moreover, it is preferable that the contact angles of the squeegee blades with respect to the ridge lines can be simultaneously adjusted via the holding means.
[0012]
Furthermore, it is preferable that each of the squeegee blades is disposed so as to be inclined in the downstream direction in the conveying direction of the plate material as viewed from the holding means.
[0013]
It is also one of the features of the present invention that each squeegee blade is made of an elastic body such as a leaf spring material or a rubber material.
[0014]
According to the present invention, since it includes a plurality of squeegee blades arranged so as to come into contact with each ridge line of the plate material, even if the plate material has a plurality of ridge lines on one side, from those ridge lines Can be deburred at once.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in more detail based on the embodiments shown in the drawings. First, referring to the front view of FIG. 1 and the plan view of FIG. 2, the ridge line finishing device 10 includes a rectangular frame 11 in a front view.
[0016]
That is, the frame 11 includes a base 111, box portions 112 and 113 provided on both sides thereof, and a beam member 114 straddling between upper ends of the box portions 112 and 113.
[0017]
A direction from the front side of the paper surface of FIG. 1 to the back side of the paper surface is a conveyance direction of the substrate (plate material) 1. A guide roller 12 of the substrate 1 is provided on the front side of the frame 11, and the back surface of the frame 11. A conveying roller 13 is disposed on the side, and the guide roller 12 and the conveying roller 13 constitute a substrate conveying means.
[0018]
In this embodiment, the guide roller 12 includes four V-shaped rollers 121 that are arranged to be opposed to each other on both the left and right sides. Is sent to. Each V-shaped roller 121 is provided with a spring 122 for elastically pressing the V-shaped roller 121 against the side surface of the substrate 1.
[0019]
The transport roller 13 has a pair of rubber rollers 131 and 132 arranged parallel to each other with the rotation axis thereof being horizontal. Although not shown, each of the rubber rollers 131 and 132 is placed in one box portion 112. The motor etc. which rotate are accommodated.
[0020]
Deburring heads 14 and 14 are provided between the guide roller 12 and the transport roller 13 on both sides of the substrate transport path, and a squeegee blade body serving as a deburring unit (scraping unit) is provided on each of the deburring heads 14 and 14. 15 is attached. The deburring heads 14 and 14 can be advanced and retracted in a direction orthogonal to the substrate transport direction A (see FIG. 2).
[0021]
The deburring heads 14 and 14 have the same configuration except that they are bilaterally symmetric. Therefore, one configuration will be described with reference to FIGS. 3 is a front view, FIG. 4 is a plan view, and FIG. 5 is a view taken along line BB in FIG.
[0022]
According to this, in this embodiment, the deburring head 14 includes two head members 141 and 142 arranged along the substrate transport direction A, and squeegee blade bodies 15a and 15b are respectively held by the head members 141 and 142, respectively. .
[0023]
In this case, one squeegee blade body 15a is upstream of the substrate transport direction A and is responsible for deburring on the upper edge 2a side of the side 2 of the substrate 1, while the other squeegee blade body 15b is transported by the substrate. Its role is shared so that it is on the downstream side in the direction A and is responsible for deburring on the lower edge 2b side of the same side 2.
[0024]
Each squeegee blade main body 15a, 15b has the same configuration except for the contact direction with respect to the side 2 of the substrate 1. Therefore, the configuration of one squeegee blade main body 15a is based on the perspective view of FIG. 5 and the front view of FIG. I will explain.
[0025]
According to this embodiment, the squeegee blade main body 15a includes the first, second and third three squeegee blades 16-18. Each of the squeegee blades 16 to 18 may be a rubber plate. In this embodiment, each squeegee blade 16 to 18 is composed of a strip-shaped leaf spring piece having a predetermined width, and each base end portion of the squeegee blades 16 to 18 extends in the same direction. Are joined together.
[0026]
The squeegee blades 16, 17, and 18 have different lengths, and the end surfaces 161, 171, and 181 on the free ends thereof are, for example, on one side of the substrate 1 as shown in FIG. When three ridge lines C1 to C3 are present on the side 2, different angles are given so as to contact the ridge lines C1 to C3.
[0027]
Incidentally, in this embodiment, in FIG. 5 and FIG. 6, the first squeegee blade 16 on the near side is the shortest, and the angle of the end surface 161 on the free end side thereof is substantially the length direction of the first squeegee blade 16. It is 90 degrees.
[0028]
Next, the second squeegee blade 17 has the second length, and the angle of the end surface 171 on the free end side thereof is approximately 100 degrees with respect to the length direction of the first squeegee blade 17, The third squeegee blade 18 has the longest length, and the angle of the end surface 181 on the free end side thereof is approximately 110 degrees with respect to the length direction of the first squeegee blade 18. In this embodiment, the end surfaces 161, 171 and 181 of the squeegee blade are linear, but the end surfaces may be convex or concave curves.
[0029]
As described above, the lengths of the squeegee blades 16, 17, and 18 and the angles of the end surfaces 161, 171, and 181 are different, so that at least one of them contacts the ridge lines C1 to C3. Is described based on the schematic diagram of FIG.
[0030]
8A, when the side 2 of the substrate 1 has a substantially right angle and only one ridge line (for example, corresponding to the ridge line C2 in FIG. 10), FIG. 8B and FIG. The side 2 of the substrate 1 is chamfered, and there is a ridge line corresponding to the ridge line C3 in FIG. 10 on the upper side, and a ridge line corresponding to the ridge line C1 in FIG. As shown, three squeegee blades 21, 22, and 23 are required to remove burrs from each of these ridge lines.
[0031]
If each of these squeegee blades 21, 22, and 23 is a squeegee blade having an end face angle of approximately 90 degrees, for example, similar to the first squeegee blade 16, the base ends thereof. As shown in FIG. 8 (d), the part side shows a considerable spread, which is not preferable in terms of space.
[0032]
Therefore, in this embodiment, with the angle of the end face of each squeegee blade 21, 22, 23 left unchanged, each squeegee blade 21, 22, 23 is translated, for example, with squeegee blade 23 as a reference, The respective base end portions of the other squeegee blades 21 and 22 are overlapped with the base end portion, whereby each squeegee blade 21, 22, 23 is viewed from the front as shown in FIG. Is fit within the space of one sheet.
[0033]
7 and 8 (e), the squeegee blade 23 corresponds to the first squeegee blade 16, the squeegee blade 21 corresponds to the second squeegee blade 17, and the squeegee blade 22 corresponds to the first squeegee blade 22. It will be understood that it corresponds to a three squeegee blade 18.
[0034]
According to the present invention, as illustrated in FIG. 10, even one board 1 having three ridge lines C <b> 1 to C <b> 3 on one side 2 can be handled with one squeegee blade body 15 a. it can.
[0035]
That is, as illustrated in FIG. 9, the end surface 161 of the first squeegee blade 16 is on the ridgeline C1, the end surface 171 of the second squeegee blade 17 is on the ridgeline C2, and the end surface 181 of the third squeegee blade 18 is on the ridgeline. C3 is contacted simultaneously.
[0036]
Further, according to the present invention, even when the side 2 of the substrate 1 is chamfered as illustrated in FIGS. 8B and 8C, or when the ridgeline is somewhat rounded, The squeegee blade can be in good contact with each ridgeline.
[0037]
As shown in FIGS. 4 and 5, each squeegee blade main body 15 a, 15 b has an appropriate inclination angle with respect to the deburring head 14 so that the end face side thereof faces the downstream side in the conveyance direction A of the substrate 1. Set with Each squeegee blade main body 15a, 15b is rotatably held by the deburring head 14 about its longitudinal axis.
[0038]
As shown in FIG. 3, a suction head 20 that sucks burrs removed by the squeegee blade main body 15 is disposed below the deburring head 14, and the suction head 20 is shown in FIG. 1 is connected to a dust collecting pipe 201 provided in one box portion 113.
[0039]
In order to deburr the substrate 1 with the ridgeline finishing device 10, the substrate 1 is pushed along the guide roller 12 in the transport direction A until the tip of the substrate 1 hits the transport roller 13 with the transport roller 13 driven in advance.
[0040]
Then, the substrate 1 is automatically conveyed, but when the substrate 1 passes between the deburring heads 14 and 14, the squeegee blade main bodies 15a and 15b come into contact with both sides 2 of the substrate 1, respectively. Thus, burrs are removed from the side 2.
[0041]
In this case, even if there are a plurality of ridge lines on the side 2 of the substrate 1, the squeegee blade bodies 15a and 15b are provided with a plurality of squeegee blades. Thus, the burrs on each ridge line can be removed at once.
[0042]
In the above embodiment, the deburring head 14 is provided with the squeegee blade body 15a for the upper edge 2a of the side 2 and the squeegee blade body 15b for the lower edge 2b of the side 2. Either one of them can be omitted depending on the form of the substrate 1 to be cleaned.
[0043]
Moreover, in the said Example, although the number of the squeegee blades which each squeegee blade main body 15 has is 3, two may be sufficient and it is good also as 4 or more. Further, a predetermined one of the plurality of squeegee blades may be made of a rubber plate, and the other may be made of a leaf spring.
[0044]
Thus, by mixing the rubber plate and the leaf spring, it is possible to simultaneously remove deburring and dust such as chips. In addition, when the number and positions of the ridgelines of the substrate 1 to be cleaned are different, the inclination angle and the rotation angle of the squeegee blade body 15 with respect to the deburring head 14 may be adjusted as appropriate. Of course, the present invention can also be applied to deburring and dust removal of a substrate having only one ridge on the side.
[0045]
【The invention's effect】
As described above, according to the present invention, when removing burrs and the like from a plate material having a plurality of ridge lines on one side, it contacts each ridge line of the plate material on the side of the conveyance path of the plate material. By providing the scraping means having a plurality of squeegee blades, it is possible to perform deburring from the respective ridge lines at a time.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a plate edge finishing apparatus according to the present invention.
FIG. 2 is a plan view of the embodiment.
FIG. 3 is an enlarged front view of a main part of a deburring head in the same embodiment.
4 is a plan view of FIG. 3. FIG.
FIG. 5 is a view taken along the line BB in FIG. 4;
FIG. 6 is a perspective view of a squeegee blade main body attached to the deburring head.
FIG. 7 is a front view of the squeegee blade body.
FIG. 8 is a schematic diagram for explaining the operation of the squeegee blade body.
FIG. 9 is a schematic diagram for explaining a contact state of the squeegee blade main body with respect to the side of the substrate.
FIG. 10 is a sectional view showing a part of a substrate to be finished by the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Board | substrate 1a, 1b Step part 2 Side C1-C3 Edge line 10 Edge line finishing apparatus 11 Frame 12 Guide roller 13 Conveyance roller 14 Deburring head 15, 15a, 15b Squeegee blade main body 16-18 Squeegee blade 20 Suction head

Claims (6)

A plate material such as a printed circuit board formed in a square shape, which has at least one step on its side, and removes unwanted unwanted materials such as burrs and dust from a plurality of ridge lines by the step In ridge line finishing equipment,
Scraping means including a plate material conveying means for conveying the plate material along a plane path parallel to the plate surface, and a plurality of squeegee blades arranged so as to contact each ridge line of the plate material at the side of the plane path. An apparatus for finishing a ridge line of a plate material characterized by comprising: The squeegee blades are held by the same holding means through spacers so that their base ends are parallel to each other, and the end surfaces on the free end side of the squeegee blades have different angles. The ridge line finishing apparatus for a plate material according to claim 1, wherein: 3. The plate material ridge line finishing apparatus according to claim 2, wherein the squeegee blades have different lengths from their respective base end portions to end surfaces that contact the ridge line. 4. The plate material ridge line finishing device according to claim 2, wherein the squeegee blades are capable of simultaneously adjusting contact angles with respect to the ridge lines via the holding means. The said each squeegee blade is arrange | positioned so that it may incline in the downstream direction of the conveyance direction of the said board | plate material seeing from the said holding means, The any one of Claim 2, 3 or 4 characterized by the above-mentioned. Plate edge finishing equipment. 6. The ridge line finishing apparatus for a plate material according to claim 1, wherein each of the squeegee blades is made of an elastic body such as a plate spring material or a rubber material.

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