JP2002193539A - Cutting mechanism for shadow mask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutting mechanism for shadow mask, capable of loading cut shadow masks in a not-disordered and aligned state, in a cutting mechanism for cutting a multilayout shadow mask 4. SOLUTION: This cutting mechanism for the shadow mask is provided with a cutting portion 10, a telescopic conveyor 20, and a clip portion 30. The clip portion clamps a front edge portion of the shadow mask 1 in a sheet, drops it from a low edge thereof to be loaded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a shadow mask, and more particularly to a cutting mechanism for a shadow mask on which shadow masks cut in a sheet shape are stacked in a state of being aligned.

[0002]

2. Description of the Related Art A general method of manufacturing a shadow mask is as follows.
First, a photosensitive resin (photoresist) is applied to both sides of a thin metal plate made of iron or an iron alloy, and dried to form a photosensitive layer. Next, an exposure mask having a predetermined light-shielding pattern (in many cases, two masks on the front and back) is aligned, adhered, and subjected to pattern exposure on the photosensitive layer with a predetermined exposure amount. Next, development, hardening, and the like are performed with a predetermined chemical solution to form a resist pattern having a predetermined shape on both surfaces of the metal thin plate.

Next, primary etching (half-etching) is performed on both surfaces of the metal sheet on which the resist pattern is formed using a ferric chloride solution or the like, and a small hole having a predetermined shape is formed on one side of the metal sheet and the other side is etched. A large hole opening pattern is formed. Subsequently, an etching contact-resistant resin layer is formed. For example, the etching contact-resistant resin layer is formed by applying and curing an ultraviolet curable resin or the like on one side of a thin metal plate having a small hole opening pattern formed thereon. To form

Further, secondary etching is performed by using a ferric chloride solution or the like until the large hole opening pattern on the other surface of the thin metal plate penetrates the small hole opening pattern on one surface to form holes of the shadow mask. Then, the etching resistant resin layer and the resist pattern on the metal thin plate are peeled off using an alkaline aqueous solution to form a shadow mask having an opening pattern of a predetermined shape.

[0005] The metal thin plate used in this case is in the form of a long strip, and the shadow mask is continuous in a state in which a plurality of long strip-shaped metal strips are laid in the width direction and a large number of strips in the long strip direction. Generally, it is manufactured. 4 and 5
2 shows a process of converting a shadow mask multi-faced to a long strip-shaped metal sheet into a single-wafer-shaped shadow mask.

FIG. 4 is a plan view showing an example of a multi-faced shadow mask. As shown in FIG. 4, in this example of a multi-faced shadow mask (50), two shadow masks (51) are provided in the width direction of the thin metal plate (54), and a number of faces are provided in the long band direction. It is a thing. The shadow mask (51) includes an image surface portion (52) and a skirt portion (5).
3), the arrow (A) is the first row (55) in the long band direction of the shadow mask (51), and the arrow (B) is the second column (55) in the long band direction of the shadow mask (51). Column (56)
(57) indicates a half-cut line provided at the center in the width direction of the thin metal plate (54), and a dashed line (58) indicates a position where the thin metal plate (54) is cut.

In order to make a long strip-shaped multi-faced shadow mask into a sheet-like shape, first, the multi-faced shadow mask (50) shown in FIG. At the portion (58), the sheet is cut by a cutting machine at right angles to the half-cut line (57) to obtain a metal sheet with two shadow masks (51) attached in the width direction as shown in FIG. A metal sheet on which two shadow masks (51) are provided in the width direction is stacked, and then transported to the next step such as inspection and inspection.

For loading a metal sheet on which two shadow masks (51) are attached, after the shadow mask is cut, a method of carrying a certain distance by using, for example, a belt conveyer and loading manually is adopted. . When the shadow masks are manually loaded in this way, the loading state (packing style) is disturbed. For example, when the shadow masks loaded on several tens of sheets are collectively transported to the next process, the load may be lost. Collapse may occur.

Further, since the shadow mask is formed by etching using a metal thin plate, the shadow mask is used for such a manual loading operation or when the packing form is manually adjusted when the collapse of the load occurs. May be damaged or dented, resulting in a defective product. In addition, those having irregular loading states are not preferable in terms of handling in the next steps such as inspection and inspection.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and is intended for cutting a shadow mask, which is provided on a long strip of thin metal sheet, into a single sheet. In the cutting mechanism used for the above, the cut shadow masks can be stacked in a uniform state without being disturbed. Therefore, collapse of the load does not occur in the batch transfer to the next process, and scratches and dents are formed on the shadow mask. An object of the present invention is to provide a cutting mechanism for a shadow mask that can be easily handled in the next step without any problem.

[0011]

SUMMARY OF THE INVENTION The present invention relates to a cutting mechanism for a shadow mask used for cutting a shadow mask, which is multifaced on a long strip of thin metal sheet, into a single sheet shape. A cutting section for cutting, 2) a telescopic conveyer for conveying the cut sheet-shaped shadow mask, and 3) a clip section for holding the tip of the transferred sheet-shaped shadow mask and stacking it downward. The sheet-shaped shadow mask is conveyed to a position (position A) where the sheet-shaped shadow mask is pinched, and at the time when the clip portion pinches the tip of the sheet-shaped shadow mask, the moving roll of the telescopic conveyor is turned into the sheet-shaped shadow mask. In the direction opposite to the transport direction of the shadow mask, by moving to the position (B position) where the single-wafer-shaped shadow mask is delivered, the lower part of the single-wafer-shaped shadow mask is supported. The shadow is characterized in that the end portion falls onto the lower sheet-shaped shadow mask, and the clip portion is released as the sheet is loaded, and the sheet-shaped shadow mask is stacked and loaded. This is a mask cutting mechanism.

[0012]

Embodiments of the present invention will be described below in detail. FIG. 1 is a sectional view showing the concept of an embodiment of a cutting mechanism for a shadow mask according to the present invention. As shown in FIG. 1, the cutting mechanism for a shadow mask according to the present invention comprises:
A cutting section (10) for cutting the shadow mask into single sheets, a telescopic conveyor (20) for conveying the cut single-sheet shadow mask, and a clip section for sandwiching and transporting the transferred single-sheet shadow mask downward. (30).

The telescopic conveyor (20) has two moving rolls (21) and (22) and three fixed rolls (2).
3), (24), (25) and conveyor belt (26)
And three fixed rolls (23), (2
4) and (25) are conveyor belts (2) at fixed positions.
6), and two moving rolls (21),
(22), while keeping the distance between the two moving rolls, as shown by a thick arrow, the two moving rolls simultaneously move in the forward or reverse direction of the shadow mask transport direction while the conveyor belt is moving. (26) is advanced.

[0014] (4) is a shadow mask multi-faced on a long strip-shaped metal sheet, (1), (2) and (3) are cut sheet-shaped shadow masks, and dotted arrows are shadow masks. The direction of conveyance is shown. In the cutting mechanism for shadow masks shown in FIG. 1, the cut sheet-shaped shadow masks (1), (2), and (3) are conveyed on a conveyor belt (26) to hold the sheet-shaped shadow mask. (A
(Position). At the position A, the clip portion (30) holds the shadow mask.

In the cutting mechanism for a shadow mask shown in FIG. 2, the two moving rolls (21) and (22) move in the transport direction of the shadow mask (dotted arrow) after the clip portion (30) holds the shadow mask. ), The conveyor belt (26) reaches a position (position B) where a single-sheet-shaped shadow mask is delivered to the clip portion, and the shadow mask (1) whose leading end is sandwiched by the clip portion is the conveyor belt. This shows the state immediately after losing support. As shown in FIG. 1 and FIG. 2, the cut-off single-sheet-shaped shadow mask (1) is transferred to a conveyor belt (26).
When the clip portion (30) is transported to the position A, the clip portion (30) holds the leading end portion of the shadow mask (1) to be advanced.

At this point, two moving rolls (2
1) and (22) move in the direction opposite to the transport direction of the shadow mask, and deliver to the clip portion up to the end of the shadow mask (1) advanced at the position B. As a result, the shadow mask (1) loses the support of the conveyor belt (26), and the end of the shadow mask (1) falls downward.
There is an advanced shadow mask (1) below, and the end portion falls and is loaded on the advanced shadow mask, and the clipping portion (30) is released in accordance with the fall and the loading, and the sheet is released. The leaf-shaped shadow masks are loaded in an aligned state. Next, two moving rolls (21),
(22) moves in the forward direction of the transport direction of the shadow mask, and transports the shadow mask (2) to be sent later to the position A.

FIGS. 3A to 3E are explanatory views showing a situation in which a sheet-shaped shadow mask is conveyed by a conveyor belt, sandwiched by clips, and stacked in a uniform state. FIG. 3A shows a state immediately before the advanced shadow mask (1) is conveyed by the conveyor belt (26), and the leading end portion is clamped by the clip portion (30). FIG. 3B shows the state at the position A. The leading end of the shadow mask (1) advanced at the position A is held by the clip portion (30).
At this point, the two moving rolls (21) and (22)
The movement of the shadow mask is started in the forward direction as indicated by the thick white arrow.

FIG. 3C shows a state immediately before the position B where the moving roll (21) has moved to near the end of the shadow mask (1) to be advanced. FIG. 3 (d) shows a state in which the moving roll (21) reaches the position B, passes the end portion of the shadow mask (1) to the clip portion, and loses the support of the conveyor belt. FIG. 3 (e) is a state in which the end of (1) has begun to fall.
Shows a situation in which the shadow mask (1) to be advanced is loaded from the end portion, the clip portion releases the clamping, and the shadow mask (1) to be advanced is loaded in an aligned state.

As described above, in the shadow mask cutting mechanism according to the present invention, the clip portion clamps the leading end of the sheet-shaped shadow mask conveyed by the telescopic conveyor and loads the sheet from the end of the sheet-shaped shadow mask. Therefore, the sheet-shaped shadow masks are stacked in an aligned state.

[0020]

According to the present invention, there is provided a cutting section for cutting a shadow mask into a single sheet, a telescopic conveyor for transferring the cut single-sheet shadow mask, and holding the transferred single-sheet shadow mask in a downward direction. Position (A position) which has a clip portion to be held and sandwiches a leaf-shaped shadow mask
When the sheet-shaped shadow mask is conveyed, and the clip portion grips the tip of the sheet-shaped shadow mask, the moving roll of the telescopic conveyor moves in a direction opposite to the conveyance direction of the sheet-shaped shadow mask, and the sheet-shaped shadow mask is conveyed. Move to the position (B position) where the shadow mask is to be delivered, deliver the end of the sheet-shaped shadow mask to the clip portion, and drop the sheet-shaped shadow mask downward from the end portion to the clip portion in accordance with the loading. Since this is a cutting mechanism for a shadow mask that releases the sandwiching and stacks the sheet-shaped shadow masks in an aligned state, the cutting mechanism for a shadow mask can stack the cut shadow masks in an aligned state without being disturbed. Becomes Therefore, the collapse of the load does not occur in the batch transfer to the next process, the shadow mask is not scratched or dented, and the handling in the next process becomes easy.

[Brief description of the drawings]

FIG. 1 is a sectional view showing the concept of one embodiment of a cutting mechanism for a shadow mask according to the present invention.

FIG. 2 is a sectional view showing the concept of one embodiment of a cutting mechanism for a shadow mask according to the present invention.

FIGS. 3A to 3E are explanatory diagrams illustrating a situation where sheet-shaped shadow masks are stacked in an aligned state.

FIG. 4 is a plan view showing an example of a multi-faced shadow mask.

FIG. 5 is a plan view showing a metal sheet on which two shadow masks are provided.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sheet-shaped shadow mask (advanced shadow mask) 2 ... Sheet-shaped shadow mask (scheduled shadow mask) 3 ... Sheet-shaped shadow mask 4 ... Multi-faced shadow mask 10 ... Cutting section 20 Telescopic conveyor 30 Clip section 21, 22 Moving roll 23, 24, 25 Fixed roll 26 Conveyor belt 50 Example of multi-faced shadow mask 51 Shadow mask 52: Image surface portion 53: Skirt portion 54: Metal sheet 55: First row in the long band direction of the shadow mask 56: Second row 57 in the long band direction of the shadow mask 57: Half line 58 ... dot-dash line

Claims (1)

[Claims] 1. A cutting mechanism for a shadow mask used for cutting a shadow mask multi-faced on a long strip-shaped metal sheet into a single sheet, 1) a cutting section for cutting the shadow mask into a single sheet, 2) cutting. 3) a telescopic conveyer that conveys the transferred sheet-shaped shadow mask; and 3) a clip section that holds the leading end of the transferred sheet-shaped shadow mask and stacks the sheet downward. The sheet-shaped shadow mask is conveyed to the position (position A), and when the clip portion grips the tip of the sheet-shaped shadow mask, the moving roll of the telescopic conveyor is moved in a direction opposite to the conveyance direction of the sheet-shaped shadow mask. Then, by moving to the position (position B) where the single-wafer-shaped shadow mask is delivered, the support below the single-wafer-shaped shadow mask is lost, and the end of the shadow mask moves downward. Sheet dropped into leaflets of the shadow mask, to release the holding of the clip portion together to loading, the shadow mask cutting mechanism, characterized in that the loading state of uniform shadow mask sheet form.