JP3565211B2 - Rib forming equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus and a method for forming a rib-like material for forming a rib-like material on a surface of a substrate used for a PDP (plasma display panel), for example.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a sand blast method has been known as a method of forming a rib in a PDP (plasma display panel).
In this method, first, as shown in FIG. 7, a glass paste or a ceramic paste containing a glass-ceramic mixed powder is applied to the entire surface of the substrate 51 by a thick film method and dried, or the glass powder is dried. Alternatively, the pattern forming layer 52 is formed by laminating a ceramic green tape containing a glass-ceramic mixed powder.
[0003]
Thereafter, the pattern forming layer 52 is covered with a photosensitive film 53, the photosensitive film 53 is exposed through a mask 54, and then developed, whereby a resist layer 55 having a predetermined pattern is formed.
Next, by performing sandblasting from above the resist layer 55 to remove a portion of the pattern forming layer 52 that will become the cell 58, a rib-like substance 56 is formed, and the resist layer 55 is removed using a release agent or the like. After that, the ribs 56 are fired to obtain the ribs 57.
[0004]
[Problems to be solved by the invention]
However, in the sandblasting method, in order to form the resist layer 55, a complicated process such as covering the photosensitive film 53, exposing and developing is necessary, and most of the pattern forming layer 52 is subjected to the sandblasting process. In order to remove the PDP, a large amount of material for the pattern forming layer 52 is required, and there is a problem that the product cost of the PDP increases.
[0005]
The present invention has been made in view of the above circumstances, and has as its object to provide an apparatus and a method for forming a rib-like material capable of reducing the product cost of a PDP.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is arranged such that the device body is opposed to the surface of the substrate, and the device main body relatively moves in one direction along the surface of the substrate, so that an interval is formed between the surfaces of the substrate. An apparatus for forming a plurality of ribs that are spaced apart from each other in one direction, wherein the apparatus main body includes a front and rear device structure divided into front and rear with respect to the relative movement direction. A blade having a plurality of comb teeth at a lower portion detachably sandwiched between front and rear device components; an edge support formed of an iron-based alloy; and a lower end of the edge support. An edge body attached to the portion, wherein the edge body is formed of a high-hardness material such as a cemented carbide , and in a state where these device components and the blade are connected to each other, a gap between the comb teeth is provided. , Of the device body It proposes forming apparatus of the rib-like material, wherein the paste supply portion of the rib-like material formed to open toward the person is formed.
[0007]
In the apparatus for forming a rib-like material according to the present invention, the rib-form-forming paste is supplied from the plurality of paste supply units toward the surface of the substrate in a state where the lower end surface of the device body is opposed to the surface of the substrate. By doing so, it adheres to the surface of the substrate.
At the same time, the paste moves between the substrate surface and the lower end surface of the device main body by relatively moving the device main body in one direction along the surface of the substrate, so that the paste adheres to the surface of the substrate. A plurality of ribs will be formed. The height dimension of the rib-like material thus formed is the length from the substrate surface to the lower end surface of the apparatus main body.
[0008]
Since the rib-like material is formed as described above, the paste is supplied only to the portion where the rib-like material is formed, and therefore, the amount of the paste required to form the rib-like material is minimized. The ribs can be formed only by the step of supplying the paste to the surface of the substrate.
[0009]
Further, since the apparatus structural body and the blade are detachably connected to each other, the blade can be easily replaced.
Therefore, for example, when the blade is replaced with a blade having a different comb tooth size, the size of the paste supply unit changes, and the size of the rib-like material formed by the paste supplied from the paste supply unit is reduced. Will change.
That is, by replacing the comb with a blade having a different shape, the shape of the rib and the size of the gap between the adjacent ribs can be easily changed.
[0011]
Further, in the rib forming apparatus according to the present invention, the edge main body is formed of a hard material such as a cemented carbide. For this reason, by polishing the lower end surface of the edge main body, the surface roughness and the parallelism with the substrate surface can be remarkably improved as compared with stainless steel, and thus the edge adhered to the substrate surface from the paste supply unit. When the paste passes between the lower end surface of the edge body and the substrate surface, the height of each of the formed ribs in the width direction (the direction orthogonal to the relative movement direction along the substrate surface). Variations in dimensions can be suppressed, and variations in height dimensions over a plurality of ribs can be suppressed.
[0012]
Note that, in the forming apparatus of the rib-like material according to the present invention, the blade may be formed by a high hardness material such as cemented carbide.
[0013]
In the rib-like material forming apparatus according to the present invention, since the edge body and the blade are formed of a hard material such as a cemented carbide, wear of the edge body and the blade due to friction generated between the edge body and the blade is reduced. can do. Also, if the edge body and the blade are polished, the surface roughness can be significantly improved as compared with stainless steel, so that the flow rate of the paste passing through the paste supply unit toward the substrate surface per unit time Can be kept constant. Therefore, it is possible to accurately form the ribs without exchanging the edge body and the blade for a large number of substrates.
[0014]
Further, in the forming apparatus of the rib-like material according to the present invention, the blade may be formed from the following metal foil thickness 0.5 mm.
[0015]
In the apparatus for forming a rib-like material according to the present invention, since it is difficult to form a blade having a thickness of 0.5 mm or less from a high-hardness material such as a cemented carbide, for example, the blade is formed from a metal material such as stainless steel. ing. By using a metal material such as stainless steel as a material for the blade, a thin blade having a small thickness can be easily formed at low cost as compared with a hard material such as a cemented carbide.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 6 show an embodiment according to the present invention. The apparatus for forming a rib-like material according to the present embodiment forms a rib-like material by applying a ceramic paste for forming a rib-like material (hereinafter abbreviated as paste) to the surface of a substrate. As shown, a head section (apparatus main body) 1 is provided. The head unit 1 includes head units (device units) 2 and 3 and a blade 4 sandwiched between the head units 2 and 3.
[0017]
The head parts 2 and 3 have a structure in which edge bodies 7 and 8 made of cemented carbide are respectively attached to lower ends 1a of edge supports 5 and 6 made of iron-based alloy. I have.
Concave portions 5b, 6b are formed in the inner surfaces 5a, 6a of the edge supports 5, 6, respectively. The blades 4 are sandwiched between the head components 2, 3, and a supply (not shown) is provided from outside the head 1. Pockets 9 and 10 for holding the paste supplied by the means are formed.
[0018]
When the edge bodies 7 and 8 are mounted on the edge supports 5 and 6, respectively, the inner surfaces 2a and 3a of the head part structures 2 and 3 are connected to the inner surface 5a of the edge support 5 and the inner surface 7a of the edge body 7 respectively. , And between the inner surface 6 a of the edge support 6 and the inner surface 8 a of the edge body 8. Thereby, the head part components 2, 3 and the blade 4 can be connected to each other without any gap.
[0019]
The blade 4 is made of a cemented carbide, and is formed in a rectangular shape in a plan view. As shown in FIG. 2, the blade 4 has a plurality of comb teeth 4d formed in a lower part 4b of a blade body 4a, and a plurality of holes 4e formed in an upper part 4c of the blade body 4a. Have been.
[0020]
The head component members 2 and 3 and the blade 4 are connected as follows.
That is, as shown in FIG. 3, a screw hole 6 b is formed in the inner surface 6 a of the edge support 6, and when the surface 4 f of the blade 4 is in contact with the inner surface 3 a of the head part structure 3, A rod 15 is screwed into the screw hole 6b through the hole 4e of the blade 4. Then, the blade 4 is sandwiched between the rear end portion 15a of the screw rod 15 and the edge support member 6, and the head portion constituting body 3 and the blade 4 are detachably connected.
[0021]
In addition, the head part structure 2 and the head part structure 3 to which the blades 4 are connected are connected by detachable connecting means (not shown) in the same manner as the screw rod 15 described above.
In this connection, the rear end portion 15a of the screw rod 15 protruding toward the back surface 4g side of the blade 4 enters the concave portion 5c formed on the inner surface 5a of the edge support 5 and the head portion constituting member 2 And the head component 3 to which the blades 4 are connected, without any gap.
[0022]
As described above, in a state in which the head components 2, 3 and the blade 4 are connected, as shown in FIG. 4, the lower end surface 4h of the comb tooth 4d of the blade 4 is connected to the lower end surfaces 7b, 8b of the edge main body. Together with the same flat surface.
The comb teeth 4d of the blade 4 and the head components 2 and 3 form the paste supply unit 11 that is open at the lower end surfaces 7b and 8b of the edge bodies 7 and 8. The paste supply unit 11 is connected to the pockets 9 and 10, and the paste can reach the lower end surfaces 7 b and 8 b of the edge bodies 7 and 8 from the pockets 9 and 10 through the paste supply unit 11.
[0023]
A method of forming a rib-like object by the head unit 1 will be described below.
First, as shown in FIG. 5, the head unit 1 is disposed so as to face the lower end surfaces 7b and 8b of the edge main bodies 7 and 8 and the surface 20a of the substrate 20 at a fixed interval. Then, the paste 21 is supplied to the pockets 9 and 10 by a supply unit (not shown), and adheres to the surface 20 a of the substrate 20 via the paste supply unit 11. At the same time, the head unit 1 is moved in the direction (A direction) along the surface 20a of the substrate 20.
The paste 21 is applied to the surface 20a of the substrate 20 to form the ribs 22, and is obtained by kneading a resin and a solvent with glass powder or glass / ceramic mixed powder.
[0024]
As described above, the paste 21 adhered to the surface 20a of the substrate 20 passes between the lower end surface 8b and the surface 20a toward the rear side in the A direction and moves along with the movement of the head portion 1 to form the ribs 22. Become. Therefore, the height of the rib 22 has a size that depends on the distance between the front surface 20a and the lower end surface 8b.
As shown in FIG. 6, when the paste passes through the plurality of paste supply units 11 from the pockets 9 and 10, respectively, the ribs 22 adjacent to each other in the direction A are spaced from each other. Are formed so as to separate them.
[0025]
As described above, according to the apparatus for forming a rib-like material, the amount of the paste 21 used to form the rib-like material 22 is minimized, and the paste 21 is supplied to the surface 20 a of the substrate 20. Since the ribs 22 are formed only by performing the steps described above, it is possible to reduce the product cost of the PDP.
[0026]
In addition, since the head part constituting bodies 2 and 3 and the blade 4 are detachably connected to each other by the connecting means such as the screw rod 15, the blade 4 can be easily replaced.
Therefore, for example, when the blade 4 is replaced with a blade 4d having a different size of the comb teeth 4d, the size of the paste supply unit 11 changes, so that the rib-like shape formed by the paste 21 supplied from the paste supply unit 11 is used. The size of the object 22 will change.
[0027]
That is, by replacing the comb 4d with a blade 4 having a different shape, the shape of the rib-like material 22 and the size of the gap between the adjacent rib-like materials 22 can be easily changed. Also in the case of manufacturing, the product cost of the PDP can be kept low.
[0028]
In addition, since the edge body 8 is made of a cemented carbide, when the lower end face 8b of the edge body 8 is polished, the surface roughness and the parallelism with respect to the surface 20a of the substrate 20 are remarkably improved as compared with stainless steel. It is possible to improve.
Therefore, when the paste 21 passes between the lower end surface 8b of the edge body 8 and the surface 20a of the substrate 20 to form the ribs 22, the width direction of each of the ribs 22 (along the substrate surface) (In the direction perpendicular to the direction of relative movement), and the variation in height over a plurality of ribs 22 can be suppressed.
[0029]
Further, since the edge bodies 7, 8 and the blade 4 are made of a cemented carbide, wear of the edge bodies 7, 8 and the blade 4 due to friction generated between the edge bodies 7, 8 and the blade 4 can be reduced. By polishing the edge bodies 7 and 8 and the blade 4, the surface roughness can be remarkably improved as compared with stainless steel, so that the paste supply unit 11 is moved toward the surface 20 a of the substrate 20. The flow rate of the pasting paste 21 per unit time can be kept constant. Therefore, it is possible to form the ribs 22 with high precision without replacing the edge bodies 7 and 8 and the blade 4 for a large number of substrates.
[0030]
In the above embodiment, the head 1 moves along the surface 20a of the substrate 20. However, the present invention is not limited to this. For example, the position of the head 1 is fixed and the substrate 20 is moved The unit 1 may be moved in one direction along the lower end surfaces 7b and 8b.
Further, the moving direction of the head unit 1 is not limited to the direction A, and may move in the direction opposite to the direction A along the surface 20a.
[0031]
Further, the blade 4 is formed of a cemented carbide, but is not limited to this, and may be formed of a metal material such as stainless steel. In particular, when the thickness of the blade 4 is set to 0.5 mm or less, it is difficult to form the blade 4 with a cemented carbide. Therefore, it is preferable to use a stainless steel foil as the material of the blade. When a stainless steel foil is used, a blade having a small thickness can be easily formed at a low cost as compared with a cemented carbide.
[0032]
As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes a design change or the like without departing from the gist of the present invention.
[0033]
【The invention's effect】
As described above, according to the first aspect of the present invention, the amount of the paste required for forming the rib-like material is minimized, and the rib-like material is formed only by the step of supplying the paste to the substrate surface. Since the object is formed, the product cost of the PDP can be reduced.
[0034]
In addition, by replacing the comb with a blade having a different shape, the shape of the rib and the size of the gap between the adjacent ribs can be easily changed. Therefore, even in the case of manufacturing a small quantity and variety of PDPs, the product cost of the PDPs can be reduced.
[0035]
In addition, since the edge body is formed of a high-hardness material such as a cemented carbide, variations in the height of the rib can be suppressed, and therefore, a rib having a constant height can be formed. It becomes.
[0036]
Further, by also blade in addition to the edge body formed I by the high-hardness material such as cemented carbide, with an edge body and blade wear due to friction generated between the paste is reduced, the paste supply portion The flow rate of the passing paste per unit time can be kept constant. Therefore, it is possible to accurately form the ribs without exchanging the edge body and the blade for a large number of substrates.
[0037]
On the other hand, by using a metal material such as stainless steel as the material of the blade, the blade can be easily formed at a lower cost and more easily than a hard material such as a cemented carbide.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a head section constituting an apparatus for forming a barrier rib according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a blade in the head unit of FIG. 1;
FIG. 3 is a side sectional view showing a state in which a part of the head unit is disassembled in the head unit of FIG. 1;
FIG. 4 is a side sectional view of the head unit of FIG. 1;
FIG. 5 is a cross-sectional view illustrating a method of forming a rib-like object using the head unit of FIG.
FIG. 6 is a perspective view showing a method of forming a rib-like object using the head unit of FIG. 1;
FIG. 7 is a cross-sectional view showing a conventional rib forming method in the order of steps.
[Explanation of symbols]
1 Head (device main body)
1a Lower end part 2, 3 Head part structure (device structure)
4 Blade 4b Lower part 4d Comb 5,6 Edge support 7,8 Edge body 11 Paste supply unit 20 Substrate 20a Surface 22 Rib

Claims (3)

A plurality of ribs are oriented in one direction at an interval on the surface of the substrate by disposing the device main body relatively in one direction along the surface of the substrate by disposing the device body facing the surface of the substrate. An apparatus for forming a rib-like object formed by:
The device main body includes a front and rear device structure divided into front and rear with respect to the relative movement direction, and a blade having a plurality of comb teeth at a lower portion, which is detachably sandwiched between the front and rear device structures.
The device structure includes an edge support formed of an iron-based alloy, and an edge main body attached to a lower end portion of the edge support, and the edge main body is formed of a high-hardness material such as a cemented carbide. Is formed,
In a state in which the apparatus constituent body and the blade are connected to each other, a gap between the comb teeth forms a paste supply section for forming a rib-like material which opens downward to the apparatus main body. Forming device. 2. The apparatus according to claim 1 , wherein the blade is made of a hard material such as a cemented carbide. 2. The apparatus according to claim 1 , wherein the blade is formed of a metal foil having a thickness of 0.5 mm or less.

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