JP2001189131A - Shadow mask trimming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a shadow mask from a product portion by cutting a work along its outer periphery line and separating an unnecessary portion from the product portion. SOLUTION: The work 10 is provided with a freely cut outer periphery line 11 which makes up a product portion 10a and an unnecessary portion 10b of the work 10. The work 10 is wound on a winding roller 21, and the product portion 10a of the work 10 is attracted by a magnet device 15 and transferred to a work conveyor 20. The unnecessary portion 10b of the work 10 is pulled by a pulling roller 22, the work 10 is cut along its outer periphery line 11, and the unnecessary portion 10b is separated from the product portion 10a. The product portion 10a is carried via the work conveyor 20 to obtain the shadow mask.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a shadow mask trimming apparatus, and more particularly to a shadow mask trimming apparatus capable of easily manufacturing a shadow mask.

[0002]

2. Description of the Related Art Conventionally, a shadow mask is manufactured as follows. That is, a metal thin plate (work) is cut by a cutting device, and a plurality of shadow masks are manufactured from the work.

In this case, the portion outside the shadow mask in the work becomes an unnecessary portion.

[0004]

As described above, a shadow mask is obtained by cutting a work with a cutting device. At this time, it is necessary to cut the workpiece with high precision, but it is difficult to perform the cutting with high precision.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a shadow mask trimming apparatus capable of easily and easily manufacturing a shadow mask.

[0006]

According to the present invention, there is provided a winding roller for providing a cuttable outer peripheral line on the outer periphery of a product portion and winding a work made of a magnetic material having an unnecessary portion formed outside the outer peripheral line. And is connected to the winding roller,
A work conveyer for conveying the work, a magnet device arranged below the work conveyer and adsorbing a product part of the work wound on the winding roller to separate it from unnecessary parts and transfer the work to the work conveyer; A shadow mask trimming device, comprising: a tension roller that pulls an unnecessary portion of a workpiece attached thereto.

According to the present invention, the product portion of the work wound on the winding roller is attracted by the magnet device, and the unnecessary portion is pulled by the pulling roller. As a result, the work is cut along the outer peripheral line, the product part of the work wound on the winding roller is transferred to the work conveyor, and the unnecessary part is separated from the product part and sent to the pulling roller side.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show an embodiment of a shadow mask trimming apparatus according to the present invention.

First, a metal sheet (work) to be trimmed by the shadow mask trimming apparatus according to the present invention.
Will be described. In FIG. 1, a thin metal plate (work) 10 made of a magnetic material is etched to provide a rectangular outer peripheral line 11, and the outer peripheral line 11 allows the work 10 to be separated from a product portion 10a corresponding to a shadow mask by an unnecessary part. And a portion 10b.

The outer peripheral line 11 of the work 10 is
a is provided along the outer circumference of the workpiece 1
It is thinner than the thickness of 0 and can be cut freely (see FIG. 2C).

A leading end 11 a of the outer peripheral line 11 of the work 10 in the transport direction penetrates the work 10 so that the work 10 can be easily cut along the outer peripheral line 11.

In FIG. 1, a work 10 has a plurality of product parts 10a, but as shown in FIG.
0 may be provided with a single product part 10a by means of an outer line 11.

FIG. 2A is a plan view of the work 10,
2B is an enlarged view of a portion B in FIG. 2A, and FIG. 2C is a cross-sectional view showing an outer peripheral line 11 of the work 10.

As shown in FIGS. 1 and 2, a trimming device for a shadow mask includes a winding roller 21 for winding a work 10 and a work 1 connected to the winding roller 21.
Conveyor 20 that transports 0 and work conveyor 2
The magnet device 1 which is disposed below the work piece 0 and attracts the product portion 10a of the work 10 wound around the winding roller 21
5 is provided. Further, the winding roller 21 is arranged orthogonal to the transport direction L of the work conveyor 20. Thus, the winding roller 21 and the magnet device 15 are
The winding roller 21 is located above the magnet device 15 in this case.

As shown in FIG. 3, the magnet device 15 is a magnet 1
5a and an iron plate 15b holding the magnet 15a,
As described above, the product portion 10 of the work 10 is adsorbed and the product portion 10a is separated from the unnecessary portion 10b and transferred to the work conveyor 20. The unnecessary portion 10b of the work 10 wound around the winding roller 21 is:
Unnecessary part 1 is always pulled by a pair of pulling rollers 22.
0b is then wound up by a wind-up roller 23.

The work conveyor 20 is stretched between guide rollers 24 and 25.

Next, the operation of this embodiment having the above-described configuration will be described.

First, the work 10 wound around the winding roller 21 is pulled by the pulling roller 22, and the product portion 10a of the work 10 is attracted by the magnet device 15 to be separated from the unnecessary portion 10b and transferred to the work conveyor 20 side. , By the work conveyor 20. On the other hand, an unnecessary portion of the work 10 wound around the winding roller 21 is wound around a winding roller 23 via a tension roller 20.

During this time, the work 10 starts to be cut from the front end 11a of the outer peripheral line 11, is cut along the outer peripheral line 11, and is separated into a product portion 10a and an unnecessary portion 10b.
That is, the outer peripheral line 11 of the work 10 attracts the product portion 10a of the work 10 by the magnet device 15, and the unnecessary portion 10
b is formed thin enough to be easily cut when pulled by the pulling roller 22.

According to the present embodiment, there is no need to cut the work 10 with the cutting device or press the work 10 from above with a jig, and the product portion 10a of the work 10 wound around the winding roller 21 is not required. The workpiece 10 is easily and easily cut along the outer peripheral line 11 simply by being attracted by the magnet device 15 and pulling the unnecessary portion 10 b by the pulling roller 22, and only the product portion 10 a is moved to the work conveyor 2.
It can be transferred to the 0 side. Unnecessary part 1 of work 10
Ob is then wound on a winding roller 23 via a tension roller 22. In this way, a shadow mask can be obtained from the product portion 10a transferred to the work conveyor 20.

Next, another embodiment of the present invention will be described with reference to FIGS. In the embodiment shown in FIGS. 1 to 4, the winding roller 21 is
5 and 6, the winding roller 21 is arranged at an angle of about 45 degrees with respect to the transport direction L of the work conveyor 20 in the embodiment shown in FIGS. 5 and 6. Things. 5 and 6, the winding roller 21 does not rotate, and the unnecessary portion 10b slides on the winding roller 21.

The other structure is substantially the same as the embodiment shown in FIGS. 5 and 6, the same parts as those of the embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 5, the winding roller 21 is disposed at an angle of about 45 degrees with respect to the conveying direction L of the work conveyor 20, and is separated from the product portion 10a of the work 10 wound around the winding roller 21. Unnecessary part 1
0b is pulled by a pulling roller 22 in a direction perpendicular to the transport direction L of the work conveyor 20.

The unnecessary portion 10b pulled by the pulling roller 22 is then taken up by a take-up roller 23.

In FIG. 5, the tension roller 22 and the take-up roller 23 are arranged in parallel with the conveying direction L of the work conveyor 20.

Further, a pair of nip rollers 27 for nipping the work 10 is provided upstream of the winding roller 21.

In FIG. 5, the winding roller 21 is inclined by about 45 ° with respect to the conveying direction L of the work conveyor 20, so that the work 10 as shown in FIG.
1 can be reliably cut.

As shown in FIG.
1 has a rectangular shape, and its four corners 11b penetrate. By inclining the winding roller 21 by 45 ° with respect to the conveying direction L of the work conveyor 20, the four corners 11b become the cutting start points of the work 10, and the four corners 1
1b is penetrated, so that the work 10 can be easily cut.

As shown in FIG. 6, the workpiece 10 penetrating the four corners 11b can hold the product component 10a more stably than the workpiece 10 penetrating the leading end 11a in the transport direction. Further, by providing the pair of nip rollers 27 upstream of the winding roller 21, the unnecessary portion 10 b of the work 10 wound around the winding roller 21 can be guided to the pair of tension rollers 22 without deforming.

Next, a modification of the magnet device 15 will be described with reference to FIG.
This will be described with reference to FIG. As shown in FIG.
a and an iron plate 30b for holding the magnet 30a, a large number of magnet bodies 30 are connected in a caterpillar shape to form a magnet device 15
May be configured. A large number of magnet bodies 30 are stretched between a pair of pulleys 32 and 33.

As shown in FIG. 8, a cylindrical magnet in which N poles and S poles are alternately arranged may be used as the magnet device 15.

Next, still another embodiment of the present invention will be described with reference to FIGS.

In the embodiment shown in FIGS. 9A and 9B, instead of providing the winding roller 23 downstream of the pulling roller 22, the unnecessary portion 10b of the workpiece 10 is cut downstream of the pulling roller 23. A cutting machine 41 for crushing is provided, and the unnecessary portion 10 cut further downstream of the cutting machine 41 is provided.
This is provided with a waste receiving portion 42 for accommodating b, and the other configuration is substantially the same as the embodiment shown in FIGS. In FIG. 9, a press for pressing the unnecessary portion 10b may be provided instead of the cutting machine 41. FIG.
In the embodiment shown in FIG. 1, instead of providing the winding roller 23 downstream of the pulling roller 22, a cutting machine 4 for cutting and pulverizing an unnecessary portion of the work 23 downstream of the pulling roller 23 is used.
1 and a waste receiving portion 42 for accommodating the cut unnecessary portion 10b further downstream of the cutting machine 41, and other configurations are substantially the same as those of the embodiment shown in FIGS. It is. In FIG. 10, instead of the cutting machine 41, a press for pressing the unnecessary portion 10b may be provided.

In FIG. 10, the winding roller 21 does not rotate, and the unnecessary portion 10b slides on the winding roller 21.

The embodiment shown in FIGS. 11 (a) and 11 (b)
The winding roller 21 and the magnet device 15 are arranged in the vertical direction of the work 10 and the magnet device 15 is arranged above the winding roller 21. Other configurations are substantially the same as those of the embodiment shown in FIGS. Are identical.

In FIGS. 11A and 11B, an upper work conveyor 20a and a lower work conveyor 20b are connected to the winding roller 21, and the magnet device 15 is disposed in the upper work conveyor 20a. Work 10
When passes through the winding roller 21, the unnecessary portion 10 b of the work 10 is drawn below the winding roller 21.
On the other hand, the product portion 10a of the work 10 is moved by the magnet device 15 in the upper work conveyor 20a to the upper work conveyor 2a.
0a, and then sent to the lower work conveyor 20b. For this reason, the work 10 is
When passing through No. 1, metal powder or dust does not adhere to the product part 10a side.

In FIG. 11, the winding roller 21 does not rotate, and the unnecessary portion 10b slides on the winding roller 21.

[0038]

As described above, according to the present invention, the product portion of the work wound on the winding roller is attracted by the magnet device, and the unnecessary portion is pulled by the tension roller to easily and easily load the work. It can be cut along the outer circumference. For this reason, an unnecessary portion of the work is peeled off from the product portion, the product portion is transferred to the work conveyor side and transported, and a shadow mask can be easily obtained from the product portion.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an embodiment of a shadow mask trimming apparatus according to the present invention.

FIG. 2 is a diagram showing a work.

FIG. 3 is a diagram showing a magnet device.

FIG. 4 is a detailed view showing an outer peripheral line of the work.

FIG. 5 is a diagram showing another embodiment of a shadow mask trimming device according to the present invention.

FIG. 6 is a detailed view showing an outer peripheral line of the work.

FIG. 7 is a diagram showing a modification of the magnet device.

FIG. 8 is a diagram showing a modification of the magnet device.

FIG. 9 is a diagram showing still another embodiment of the shadow mask trimming device according to the present invention.

FIG. 10 is a diagram showing still another embodiment of a shadow mask trimming device according to the present invention.

FIG. 11 is a diagram showing still another embodiment of the shadow mask trimming device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Work 10a Product part 10b Unnecessary part 11 Outer circumference line 20 Work conveyor 20a Upper work conveyor 20b Lower work conveyor 21 Winding roller 22 Pulling roller 23 Winding roller 27 Nip roller 30 Magnet 30a Magnet 30b Iron plate 41 Cutting machine 42 Gas receiving part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazuhide Tominaga 1-1-1 Ichigaya-Kaga-cho, Shinjuku-ku, Tokyo F-term in Dai Nippon Printing Co., Ltd. 5C027 HH14

Claims (9)

[Claims] 1. A winding roller for winding a work made of a magnetic material having an unnecessary portion formed outside of the outer peripheral line, wherein the winding roller is connected to a winding roller. A work conveyer for conveying the work, a magnet device arranged below the work conveyer and adsorbing a product part of the work wound on the winding roller to separate it from unnecessary parts and transfer the work to the work conveyer; And a tension roller for pulling an unnecessary part of the attached work. 2. The shadow mask trimming device according to claim 1, further comprising a winding roller for winding an unnecessary portion downstream of the pulling roller. 3. The shadow mask trimming device according to claim 1, wherein the winding roller is provided to be inclined with respect to the conveying direction of the work conveyor. 4. The shadow mask trimming device according to claim 1, further comprising a cutting machine for cutting and pulverizing an unnecessary portion downstream of the winding roller. 5. The shadow mask trimming device according to claim 1, further comprising a press machine for pressing an unnecessary portion downstream of the winding roller. 6. The shadow mask trimming device according to claim 4, wherein a waste receiving portion is provided downstream of the cutting machine. 7. The shadow mask trimming apparatus according to claim 5, wherein a waste receiving portion is provided downstream of the press machine. 8. The shadow mask trimming device according to claim 1, wherein the winding roller and the magnet device are arranged in a vertical direction of the work, and the winding roller is located above the magnet device. apparatus. 9. The shadow mask trimming device according to claim 1, wherein the winding roller and the magnet device are arranged in a vertical direction of the work, and the winding roller is located below the magnet device. apparatus.