JP4094173B2 - Man conveyor conveyor floor board manufacturing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor board installed at a man conveyor entrance and exit and a manufacturing method thereof.
[0002]
[Prior art]
Japanese Patent Publication No. 55-18236 (Prior Art 1) is known as a prior art relating to a floor board installed at a man conveyor entrance.
In this prior art 1, in the entrance / exit cover provided at the terminal entrance / exit of the man conveyor, the entrance / exit cover is pressed with a thin material plate so as to increase the apparent thickness with respect to the thickness of the material plate. A man-conveyor entrance / exit cover formed by processing and forming a large number of protrusions is described.
In order to enhance the design effect of the entrance / exit cover for the man conveyor, after coloring paint is applied to the entire surface, polishing is performed to remove the paint on the protrusions, and a metal surface is formed so that the shape of the protrusions can be seen. Standing up.
Japanese Laid-Open Patent Publication No. 6-344049 (Prior Art 2) is known as a prior art relating to a shearing method using a press machine for manufacturing a tooth profile part or the like having a shear surface and no sagging surface.
[0003]
[Problems to be solved by the invention]
However, in order to manufacture the entrance / exit cover of a man conveyor, when punching a thin material plate and forming a large number of protrusions, the clearance between the punch and the die is used to prevent damage due to punch and die galling. Since it was about 7% with respect to the film thickness of the plate body, a droop of about 0.35 mm occurred in the peripheral part of the projection part, and after coating the entire surface and then polishing, The paint was not cut off in the surrounding area and was left behind. Therefore, after the polishing process, it was necessary to manually remove the remaining paint, which required much man-hours.
[0004]
On the other hand, the prior art 2 only describes that if the clearance between the punch and the die is made negative in the shearing method using a press machine, the sagging on the shearing surface is reduced. In order to manufacture, a thin material plate was pressed to form a large number of protrusions, and at the periphery of the protrusions was suppressed to about 0.25 mm or less, and then the entire surface was coated with a coloring paint. After that, it is not taken into consideration that the colored paint is not left in the peripheral part of the protrusion only by polishing, so that the protrusion shape can be seen clearly, and the strength at the rising part of the protrusion is increased. There is no consideration for the points.
[0005]
The object of the present invention is to solve the above-mentioned problems by simplifying the polishing process for removing the paint or the like colored on the surface of the protrusion, so that the shape of the protrusion is uniform and clearly visible. An object of the present invention is to provide a floor plate for a man conveyor / entrance entrance and a method for manufacturing the floor plate, which can be manufactured at low cost.
Another object of the present invention is to eliminate a useless polishing step of removing paint or the like colored on the surface of the protruding portion, and to provide a high-design man conveyor entrance and exit floor plate that has a uniform and clear protruding portion shape. It is an object of the present invention to provide a floor plate for a man conveyor entrance and exit, which can be manufactured at low cost, and a manufacturing method thereof.
Still another object of the present invention is to increase the strength of the rising portion of the protruding portion, and to manufacture a floorboard of a high-design man conveyor entrance that looks uniform and has a clear protruding portion shape at low cost. An object of the present invention is to provide a floor plate for a man conveyor entrance and a manufacturing method thereof.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, the clearance between the punch and the die is set to 5% or less (including a negative case) with respect to the plate thickness of the plate-like workpiece, and the molding load is applied. A molding process for obtaining a floor board molded article in which a plurality of protrusions are two-dimensionally formed on the surface side by half-molding the plate-like workpiece, and the surface of the floor board molded article obtained in the molding process A method for producing a floorboard for a man conveyor entrance and exit, comprising: a coloring step for coloring the surface, and a polishing step for removing the coloring by polishing the surface of the protrusion of the floorboard molded product colored in the coloring step It is.
In addition, the present invention applies a forming load while applying a reverse pressing force between the punch and the die so as to oppose the punch, and performs a half punching process on the plate-shaped workpiece, so that a large number of protrusions are formed on the surface side. A molding process for obtaining a floorboard molded article in which the parts are two-dimensionally arranged, a coloring process for coloring the surface of the floorboard molded article obtained in the molding process, and a floorboard molded article colored in the coloring process And a polishing step for removing coloring by polishing the surface of the protruding portion.
[0007]
The present invention also provides a preparatory step of preparing a colored plate-like workpiece colored on the surface of the plate-like workpiece, and a colored plate prepared with a clearance between the punch and the die in the preparatory step. A large number of protrusions on the surface side of the colored plate-like work piece are subjected to half-punch molding by applying a molding load to 5% or less (including negative cases) with respect to the plate thickness of the work piece-like work piece And a polishing step for polishing the surface of the protrusions of the floor plate molded product obtained in the molding step to remove the coloration. It is a manufacturing method of the floor board of a conveyor entrance / exit.
The present invention also provides a preparatory step for preparing a colored plate-like workpiece colored on the surface of the plate-like workpiece, and loading a reverse press force between the punch and the die so as to face the punch. A molding step of applying a molding load to the colored plate-like workpiece prepared in the preparation step to obtain a floor plate molded product in which a large number of protrusions are two-dimensionally arranged on the surface side And a polishing step of removing the coloring by polishing the surface of the protrusion of the floor plate molded product obtained in the forming step.
[0008]
Further, the present invention is characterized in that, in the molding step of the method for manufacturing the floor plate of the man conveyor, the roundness of the protrusion height is provided at the peripheral corners of each of the protrusions.
Further, the present invention is characterized in that, in the molding step of the manufacturing method of the floor plate of the man conveyor, the clearance between the punch and the die with respect to the plate thickness of the plate-like workpiece is set to about −2% to −10%. And
The present invention also provides a preparatory step for preparing a plate-shaped workpiece, and a half-punch molding is performed on the plate-shaped workpiece prepared in the preparatory step by applying a molding load between the punch and the die. A molding step for obtaining a floorboard molded article in which a large number of projections are two-dimensionally arranged on the surface side, and a coloring step for coloring only the recesses between the projections of the floorboard molding obtained in the molding step. It is the manufacturing method of the floor board of a man conveyor entrance characterized by having.
[0009]
Moreover, this invention is characterized by the hairline process being given to the surface of the plate-shaped workpiece prepared in the preparatory process of the manufacturing method of the floor board of the said man conveyor entrance / exit.
In addition, the present invention is characterized in that in the coloring step of the method for manufacturing the floor plate of the man conveyor entrance / exit, one or a plurality of nozzles for discharging paint are used.
Further, the present invention is characterized in that, in the coloring process of the method for manufacturing the floor plate of the man conveyor, the screen is used with a screen mask having a mesh-like portion or a hole.
[0010]
In addition, the present invention provides a preparation step of preparing a sheet pasting plate-like workpiece with a sheet attached to the surface, and a sheet pasting plate shape prepared in the preparation step by applying a molding load between the punch and the die. A molding process for obtaining a floorboard molded article in which a plurality of projections are two-dimensionally formed on the surface side by half-molding the workpiece, and the projections of the floorboard molded article obtained in the molding process A removal step of removing the sheet adhered to the recesses in between, a coloring step of coloring the surface of the floor board molded product from which the recess sheet was removed in the removal step, and a floor board molded product colored in the coloring step And a removing step of removing a sheet attached to the surface of the protrusion of the conveyor.
Moreover, the present invention is characterized in that hairline processing is applied to the surface of the plate-like workpiece in the sheet-fitting plate-like workpiece prepared in the preparation step of the manufacturing method of the floor plate of the man conveyor entrance and exit. To do.
Also, the present invention provides a man conveyor characterized in that a large number of protrusions are two-dimensionally arranged on the surface side, and the periphery of each protrusion is constituted by a half-cut molded product of 0.25 mm or less. It is a floor board at the entrance.
[0011]
As described above, according to the above-described configuration, the process of getting on and off a highly-designed man conveyor that makes the protrusion shape uniform and clear can be simplified by eliminating or eliminating the polishing process for removing the colored paint on the surface of the protrusion. The floorboard of the mouth can be manufactured efficiently and inexpensively.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Embodiments of a floor plate for a man conveyor entrance and exit and a method for manufacturing the same according to the present invention will be described with reference to the drawings.
First, the man conveyor entrance / exit according to the present invention and the floor board provided thereon will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, a floor board (product) 1 covering the machine room is installed at the terminal entrance of the man conveyor. In addition, 2 shows the balustrade of a man conveyor.
As shown in FIG. 2, the floorboard (product) 1 of the man conveyor entrance has an uneven pattern on the surface to prevent passengers from slipping. And the schematic dimension of the floor board 1 is as follows. That is, L = 700 mm to 1500 mm, W = 200 mm to 500 mm, plate thickness t is about 1.2 mm to 3.0 mm, and the height h of the protrusion 3 is about 0.5 mm to 1.5 mm. The material of the floor board material (work material) 20 is a steel material such as stainless steel or a plated steel plate, or aluminum, and a large number of protrusions 3 are two-dimensionally arranged by press half punching. The shape of the protrusion 3 will be described later. The concave portions 4 are coated with coloring paints 6a, 6b, 6c.
[0013]
First, when a large number of protrusions 3 are two-dimensionally formed on the floor board material (workpiece) 20 by press molding according to the present invention, who is completely generated near the peripheral edge (peripheral part) of the protrusion 3 is completely removed. It is almost impossible to lose. However, what is required of the floor board 1 at the entrance of the man conveyor is the appearance after the surface of the protruding portion 3 is polished with a belt sander, a polishing wheel, a grindstone or the like after the entire surface is coated. Therefore, a survey of the polishing process and a sensory test to judge the product after polishing with the human eye were performed. As a result, as shown in FIG. 4, if the amount of h (h-hs) generated in the vicinity of the peripheral edge (peripheral portion) of the protrusion 3 is about 0.25 mm or less, the polishing unevenness is almost generated only by the above polishing. Thus, it was found that a good product in which the shape of the protruding portion is clearly visible can be obtained.
[0014]
Next, the 1st Example of the manufacturing method of the floorboard product 1 of the man conveyor entrance which concerns on this invention is described using FIGS. The protrusion 3 of the floorboard product 1 according to the present invention is mainly intended to prevent passengers from slipping and to improve the appearance, so that it can be formed by half punching that stops the punch in press molding before contacting the die. It is. Therefore, the clearance ratio (CL / t) with the clearance CL with respect to the plate thickness t of the workpiece 20 in the press punching die shown in FIG. This indicates that the clearance ratio (CL / t) is negative.) By this, the amount of material can be reduced to about 0.25 mm or less, and the material portion existing between the edge of the punch 7 and the edge of the die 8 is reduced. It has been found by experiment that the strength at the connecting portion (rising portion) 22 of the protrusion 3 is increased by being crushed (subjected to compression). In particular, if the clearance ratio (CL / t) becomes negative, the material portion existing between the edge of the punch 7 and the edge of the die 8 is clear as shown by the arrow 21 in the enlarged view of FIG. By being crushed (subjected to compression), the strength at the connecting portion (rising portion) 22 of the protrusion 3 increases.
On the contrary, when the clearance ratio (CL / t) is 7% or more in the positive direction, the strength of the connecting portion (rising portion) is increased by pulling the material portion existing between the edge of the punch 7 and the edge of the die 8. Will be reduced.
[0015]
That is, the punching die shown in FIG. 3 includes a punch 7 to which a processing force P is applied, a die 8 and a plate presser 9 to which a presser load Po is applied. Then, in FIG. 5, using the punching die shown in FIG. 3, the punch 7 is loaded with the processing force P and stopped at the protruding amount h, and is half-cut-molded with respect to the workpiece 20. Clearance ratio (CL / t) when the material is SUS430, the plate thickness t of the workpiece 20 is 2.0 mm, and the height h of the protrusion 3 is 0.8 mm, and the amount of slump around the protrusion 3 (h It is the experimental result which showed the relationship with -hs). As apparent from FIG. 5, when the clearance ratio (CL / t) decreases from + 5%, the droop (h-hs) in the peripheral portion of the protrusion 3 decreases from 0.25 mm, and the clearance ratio (CL / T) is -2%, the droop (h-hs) at the periphery of the protrusion 3 shows a minimum value of about 0.175 mm, and even if the clearance ratio increases by-, this minimum value is It will have the property to be kept.
By the way, even if the plate thickness t is changed to about 1.2 mm to 3.0 mm, if the clearance ratio (CL / t) is the same, substantially the same characteristics are exhibited. Moreover, even if the height h of the protrusion 3 is changed to about 0.5 mm to 1.5 mm, substantially the same characteristics are exhibited. When the material of the floor board material (work material) 20 is formed of steel material such as stainless steel or plated steel, or aluminum, it is generally softer than SUS430, so that it is easy to be half-molded, and the margin of the peripheral portion of the protrusion 3 ( h-hs) will be less than that shown in FIG.
[0016]
In particular, even when the material of the floor board material 20 is SUH409, it is softer than SUS430 and the drooping (h-hs) of the peripheral portion of the protrusion 3 is reduced from that shown in FIG. Therefore, by using the material of SUH409 as the workpiece 20 of the floor board molded product 1a, the thickness of the plate is about 1.5 mm, and the clearance ratio (CL / t) is 5% or less. The droop can be reduced from 0.25 mm, and the clearance ratio (CL / t) is further increased to the − side from −2%, thereby reducing the droop around the protrusion 3 from the minimum value of 0.175 mm. It becomes possible to decrease. From this, the optimum range of the clearance ratio (CL / t) is about -2% to -10%. Therefore, the clearance CL is about -0.04 mm to -0.2 mm when the plate thickness t is 2.0 mm, for example.
As described above, the floor plate material 20 is made of steel or aluminum such as stainless steel or plated steel plate, the plate thickness t is about 1.2 mm to 3.0 mm, and the height h of the protrusion 3 is 0.5 mm to 1. If the clearance ratio (CL / t) is 5% or less (in particular, it is increased to -side from -2%), the floor board material is SUS430 and the workpiece thickness 20 is 2 When the height h of the projection 3 is 0.8 mm and the clearance ratio (CL / t) is about 7%, the circumference of the projection 3 is about 0.35 mm. It is possible to greatly reduce the drooping of the portion, and the material portion existing between the edge of the punch 7 and the edge of the die 8 is crushed (compressed), whereby the strength at the connecting portion 22 of the protruding portion 3 is increased. Can be increased and That.
[0017]
As a result, a floor plate molded product 1a is obtained which is half-cut molded as shown in FIG. 6 (a) to form the projections 3, and then, as shown in FIG. 6 (b), the entire surface of the floor plate molded product 1a is obtained. On the other hand, a coating material 6a for coloring is applied, and then the surface of the projection 3 to which the coating material 6a is applied is applied with a belt sander 23, polishing foil (a spring made of abrasive paper radially), a grindstone or the like as shown in FIG. By polishing, almost no polishing unevenness is generated, and thereafter the paint 6a on the surface of the protrusion 3 can be completely removed without performing additional local polishing work such as manual work. FIG. As shown in FIG. 4, a coating 6a is formed on the concave portion 4 so that a good floor board product 1 in which the shape of the protruding portion can be clearly seen can be obtained.
FIG. 7 shows a state in which the surface of the protrusion 3 to which the paint 6 has been applied is polished with a belt sander. The belt sander 23 applies a polishing load while rotating the belt-shaped polishing paper (cloth) 24, and moves the belt sander 23 relative to the floor board molded product 1a coated with the paint 6a as indicated by an arrow 25 for polishing. To do. The same applies to the polishing foil (a spring made of abrasive paper radially) and the grindstone.
Then, for example, the product 1 of the floor board is completed by finally cutting to product dimensions.
[0018]
Next, the 2nd Example of the manufacturing method of the floor board product 1 of the man conveyor which concerns on this invention is described using FIGS. 8-10, FIG. 6, FIG.
By the way, when the protruding portion 3 is half-cut-molded from the workpiece 20, it is considered that anyone that occurs in the peripheral portion of the protruding portion 3 occurs in the initial stage of molding. For this reason, the second embodiment is a method of restraining the occurrence of drooling by constraining the material of the protruding portion from the initial stage in the half blanking molding. In the molding method, first, the material 20 is sandwiched between the die 8 and the plate retainer 9, and a plate retainer force Po is applied (FIG. 8A). Next, at the same time as the punching force P is applied, a reverse presser force Pd (<punch force P) opposite to the punch force P is applied, and the material of the protruding portion is constrained by the punch 7 and the reverse presser 10 (see FIG. 8 (b)). In this constrained state, the punch 7 is lowered by the difference between the punching force P and the reverse pressing force Pd and stopped at the protruding amount h, and the protruding portion 3 is formed by half punching (FIG. 8C). According to this half punching molding method, since the material of the protruding portion is restrained by the punch 7 and the reverse presser 10 from the start of molding, it is possible to suppress the occurrence of dripping in the peripheral portion of the protruding portion 3. Further, the reverse pressing force Pd is 30 to 80% of the punching force P, and the larger the value, the smaller the drooping force.
[0019]
FIG. 9 shows the structure of a molding die that realizes this half-cut molding method. The molding die includes a punch 7, a reverse presser 10, a pressure applying means 12 such as a spring that applies a reverse presser force Pd to the reverse presser 10, a plate presser 9, and a plate presser against the plate presser 9. The pressure applying means 13 such as a spring for applying a force, the die 8 and the stopper 11 constitute a single unit. The pressure applying means 12 such as a reverse pressing force load spring is incorporated in the molding die in a contracted state until a desired reverse pressing force Pd can be secured at the initial molding position. The protrusion height h is adjusted by the stopper 11.
When the press ram (not shown) is lowered and the plate presser 9 is brought into contact with the workpiece 20 in the half blanking process, the pressure applying means 13 such as a spring contracts, and the workpiece 20 is clamped. When the ram is further lowered, the punch 7 is lowered while applying the reverse pressing force Pd by the pressure applying means 12 such as a spring, and the reverse presser 10 comes into contact with the stopper 11 to finish the projection molding. Note that the pressure applying means 12 and 13 such as the spring may be constituted by urethane rubber, a cylinder or the like.
According to this molding die, it is possible to realize the half blanking molding method according to the present invention with an inexpensive single-acting press. Of course, it is also possible to perform the above molding using a double-acting press or a press having a die cushion function as loads of the reverse presser force Pd and the plate presser force Po.
[0020]
FIG. 10 shows a state where the material of the protruding portion is constrained by the reverse presser force Pd in the reverse presser 10 as shown in FIG. 8 by using the punching die shown in FIG. 7 is lowered and stopped at the protruding amount h, and half-molded with respect to the workpiece 20, the material of the workpiece 20 is SUS430, the plate thickness t of the workpiece 20 is 2.0 mm, and the height of the protrusion 3 is increased. It is the experimental result which showed the relationship between the clearance ratio (CL / t) when the thickness h is 0.8 mm, and the slump (h-hs) of the peripheral part of the protrusion part 3. FIG. When the clearance ratio (CL / t) increases, the amount increases slightly. However, even when the clearance ratio (CL / t) becomes 12.5%, the amount of protrusion around the protrusion 3 becomes 0.25 mm or less. It was. In particular, if the clearance ratio (CL / t) is set to 5% or less, it is possible to reduce the amount of protrusion around the protrusion 3 to about 0.07 mm or less, which is substantially close to the minimum value (about 0.05 mm).
The force required for forming the protrusion (processing force P, reverse pressing force Pd, plate pressing force Po) varies depending on the clearance ratio (CL / t), and a larger force is required as the clearance ratio (CL / t) decreases. It becomes.
[0021]
As explained above, the floor board material (workpiece) 20 is made of steel or aluminum such as stainless steel or plated steel sheet, the plate thickness t is about 1.2 mm to 3.0 mm, and the height h of the protrusion 3 is set. When the clearance ratio (CL / t) is set to about 0.5 mm to 1.5 mm and the clearance ratio (CL / t) is set to 5% or less (particularly, increased to the − side rather than −2%), the periphery of the protrusion 3 is larger than that of the conventional technique. It is possible to drastically reduce the drooping of the portion to about 0.07 mm or less, which is substantially close to the minimum value (about 0.05 mm), and the material portion 22 existing between the edge of the punch 7 and the edge of the die 8. By crushing (subjecting compression), it becomes possible to increase the strength of the connecting portion 22 of the protrusion 3.
[0022]
As a result, a floor plate molded product 1a is obtained which is half-cut molded as shown in FIG. 6 (a) to form the projections 3, and then, as shown in FIG. 6 (b), the entire surface of the floor plate molded product 1a is obtained. On the other hand, the coating material 6a for coloring is applied, and then the surface of the protrusion 3 to which the coating material 6a is applied is polished with a belt sander 23, a polishing foil, a grindstone or the like as shown in FIG. As a result, the unevenness of the peripheral portion of the protrusion 3 is further reduced, so that the polishing unevenness hardly occurs. Thereafter, the paint 6a on the surface of the protrusion 3 is completely removed without performing a local additional polishing operation such as a manual operation. It can be removed, and it becomes possible to obtain a good product 1 in which the paint 6a is formed in the recess 4 and the protrusion shape is clearly visible.
Then, similarly to the first embodiment, for example, the product 1 of the floor board is completed by finally cutting into product dimensions.
[0023]
Next, the 3rd Example of the manufacturing method of the floorboard product 1 of the man conveyor entrance which concerns on this invention is described. For example, when the quadrangular protrusion 3 is formed by a press half-cut forming process, the droop around the corner is particularly large. This is because the material does not easily flow around the corner. Therefore, the third embodiment is the same as the first or second embodiment, and further, the roundness R is provided at the corners of the protruding portion to improve the material flow, and the drooping around the corners is reduced.
FIG. 11 shows the ratio (R / h) of the roundness R of the peripheral corner of the projection 3 to the height h of the projection (hereinafter referred to as the rounding ratio (R / h) of the peripheral corner of the projection) and the projection 3. 3 shows the relationship with the peripheral angle droop (h-hs) of the first embodiment, and (1) is the half blanking method shown in FIG. 3 in the first embodiment (however, the clearance ratio (CL / t) = 0). %) And (2) are due to the half blanking method shown in FIG. 7 in the second embodiment (however, the clearance ratio (CL / t) = 0%). The material of the workpiece 20 is SUS430, the plate thickness t is 2.0 mm, and the height h of the protrusion 3 is 0.8 mm.
[0024]
In the prior art (clearance ratio (CL / t) = 7%), the protrusion 3 has a large peripheral angle. Even if the roundness R / h of the protrusion 3 is 2.5, the protrusion 3 It was not possible to reduce the marginal angle to 0.25 mm or less. However, according to the technique {circle around (1)} of the present invention in which the clearance is reduced, the peripheral angle of the protrusion 3 is reduced and the roundness R / h of the protrusion 3 is 1 or more, that is, the peripheral angle of the protrusion 3. By setting the roundness of the protrusion to a protrusion height h (about 0.5 mm to 1.5 mm) or more, it is possible to form a protrusion having a peripheral angle of the protrusion 3 that is less than the target (0.25 mm). As a result, the coloring paint 6a is applied to the entire surface of the half-molded floor board molded product 1a, and then the surface of the protrusion 3 to which the paint 6a is applied is applied with a belt sander, polishing foil, grindstone, etc. By simply polishing, there is almost no uneven polishing due to the decrease in the peripheral corners of the protrusion 3, and then the paint 6 a on the surface of the protrusion 3 without any additional local polishing work by hand or the like. Can be removed completely after polishing Protrusion shape can be obtained a good product 1 clearly visible.
[0025]
Further, according to the technique (2) of the present invention in which a reverse presser force Pd opposite to the punching force P is applied, the peripheral corner of the protrusion 3 is further reduced, and the roundness R of the peripheral corner of the protrusion 3 is almost reduced. Even in the case of 0, it is possible to form the protruding portion 3 in which the peripheral angle of the protruding portion is equal to or less than the target (0.25 mm).
Various shapes as shown in FIG. 12 can be considered as the planar shape of the protrusion 3. That is, there are polygons such as a quadrangle as shown in FIG. 12A and symbols and character shapes as shown in FIG. In either case, the corners of the protrusions are all or partially rounded in order to reduce the peripheral corners of the protrusions. Assuming that the length of one side of the square or the short side of the rectangle is A, in the case of rounded corners R = A / 2, the square is a circle as shown in FIG. It becomes an oval shape as shown in d).
[0026]
Next, the 4th Example of the manufacturing method of the floor board product 1 of the man conveyor entrance which concerns on this invention is described. The difference of the fourth embodiment from the first, second, and third embodiments is that the surface of the workpiece 20 is indicated by 6b in advance before forming the protrusions by press half-pull molding. It is to be colored by painting or chemical treatment. In the first, second, and third embodiments, since the entire upper surface is coated and polished after forming the protruding portion, the paint adhered to the rising portion 5 of the protruding portion as shown in FIG. 6a cannot be excluded, and the appearance of the shape of the protrusion 3 may vary depending on conditions such as the amount of paint applied and the amount of polishing. However, as shown in FIG. 13, when the protrusions 3 are formed by pre-colored work piece 20 ′ as in the fourth embodiment by the above-described press punching forming process, the rising parts 5 of the protrusions become shear surfaces and become a metal surface. The color is visible (no paint). Therefore, if the floor plate molded product 1b half-molded is polished by the above polishing method until there is no coloring 6b on the upper surface of the protrusion 3 in the polishing process, the paint 6b remains only in the recesses 4, so the metal surface and coloring The difference in surface is clear, and the shape of the protrusion 3 can be made uniform and clear.
[0027]
Next, a description will be given of a fifth embodiment of the method for manufacturing the floorboard product 1 at the entrance / exit of the man conveyor according to the present invention. In the fifth embodiment, the difference from the first, second, third and fourth embodiments is that the polishing step is eliminated, and the coating 6c is applied only to the concave portion 4 of the half-molded floor board molded product 1c. Is to be applied. In the fifth embodiment, since the surface of the protrusion 3 remains the material of the workpiece 20, it is desirable to polish, for example, hairline processing before half-cut forming.
As a method of applying the coating 6 c only to the concave portion 4 of the floor board molded product 1 c, a plurality of nozzles 14 are arranged on the concave portion 4 as shown in FIG. 14, and the coating material 30 is applied from the nozzle 14 along the shape of the concave portion 4. The nozzle 14 and the floor board molded product 1c are moved relative to each other while being discharged, and after painting in one direction, the nozzle 14 or the floor board molded product 1b is rotated 90 degrees, and the concave portion 4 in the other direction not coated is formed. This is a method of relatively moving the nozzle 14 and the floor board molded product 1c while discharging the paint 30 from the nozzle 14 along the shape. That is, in this method, the coating 6c is formed while discharging the coating material 30 from the nozzle 14 only in the concave portion 4 on the surface side of the floor board molded product 1c.
[0028]
As another method for applying the coating 6c only to the concave portion 4 of the floor board molded product 1c, as shown in FIG. 15, the portion of the floor board molded product 1c with respect to the concave portion 4 has a mesh shape or a hole. In this method, the screen mask 15 having no holes in the projection 3 is placed on the floor board molded product 1c, and the paint 30 is applied from above the screen mask 15. According to this method, the coating material 30 passes through the meshes or holes of the screen mask 15, and the coating material 30 does not pass through the other portions. Therefore, the coating material 6 c can be applied only to the recesses 4.
In addition, the coating method in the fifth embodiment is not limited to the floor plate molded product 1c obtained by molding the protrusions 3 by press half-cut molding, but also on the floor plate molded product 1d molded by cutting or etching as shown in FIG. Is also applicable.
According to the fifth embodiment, it is possible to eliminate the polishing process by coating only the concave portions 4 of the floor board molded products 1c and 1d, thereby improving the work environment and costs such as labor costs and material costs. Can be reduced.
[0029]
Next, a description will be given of a sixth embodiment of the method for manufacturing the floorboard product 1 at the entrance / exit of the man conveyor according to the present invention. In the sixth embodiment, for example, a sheet is temporarily attached to the surface of a material of the workpiece 20 that has been polished, for example, a hairline process, and the workpiece 20 thus attached with the sheet is attached to the surface. On the other hand, after half-molding, the sheet attached to the recess 4 is peeled off, and then the entire surface is colored by painting or chemical treatment, and the sheet attached to the protrusion 3 is peeled off, so that only the recess 4 is colored. A floorboard product 1 is obtained. Thus, in the sixth embodiment, at the stage of half-cutting, since the sheet is attached to the surface of the protrusion 3, even if it is colored, it is removed by peeling the sheet. Therefore, as in the fifth embodiment, there is no need to worry about the paint remaining due to anyone generated around the protrusion 3.
As described above, according to the fifth and sixth embodiments, it is possible to realize the floor board product 1 of a high-design man conveyor entrance that allows the shape of the protrusions to be clearly seen.
[0030]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, there exists an effect which can manufacture efficiently and cheaply the floor board of the high-design man-conveyor entrance / exit which the shape of a projection part looks clear by simplifying or eliminating a grinding | polishing process.
Further, according to the present invention, it is possible to increase the strength of the rising portion of the protruding portion, and to efficiently and inexpensively manufacture a floorboard of a high-design man conveyor entrance that allows the shape of the protruding portion to be clearly seen. Play.
[0031]
In addition, according to the present invention, by applying half-punching using a pre-colored steel sheet, it is possible to leave the paint only in the recessed portion after polishing, and the shape of the protruding portion is a highly designed man that looks uniform and clear. There is an effect that the floor board of the conveyor entrance can be manufactured.
In addition, according to the present invention, by applying the coating only to the recesses, it is possible to eliminate the polishing process in the subsequent process, and the floorboard of the high-design man conveyor entrance that allows the shape of the protrusions to be clearly seen is efficiently obtained. In addition, there is an effect that can be manufactured at low cost.
[Brief description of the drawings]
FIG. 1 is a front view showing a schematic structure of an entrance / exit of a man conveyor according to the present invention.
FIG. 2 is a perspective view showing an outline of a floorboard product placed at the entrance of a man conveyor according to the present invention.
FIG. 3 is a view showing an embodiment of a press punching die according to the present invention.
FIG. 4 is a cross-sectional view showing a part of a floor board molded product in which protrusions are formed by half punching according to the present invention.
FIG. 5 is a diagram showing the relationship between the clearance ratio (CL / t) and the slump (h-hs) in the peripheral portion of the protrusion when the press die shown in FIG. 3 is used.
FIGS. 6A and 6B are diagrams for explaining first and second embodiments of a method for manufacturing a floor board product at an entrance of a man conveyor according to the present invention. FIGS.
FIG. 7 is a view for explaining an embodiment of a polishing method for removing the coloring paint applied to the protrusions of the floor board molded product in which the protrusions are formed by half-cut molding according to the present invention.
FIG. 8 is a view for explaining an embodiment in which a protrusion is formed by half punching using the press die shown in FIG. 9;
FIG. 9 is a view showing an embodiment different from FIG. 3 of the press punching die according to the present invention.
10 is a diagram showing the relationship between the clearance ratio (CL / t) and the amount of slump (h-hs) in the periphery of the protrusion when the press die shown in FIG. 9 is used.
11 shows roundness (R / h) of the peripheral angle (protrusion angle) of the protrusion and the protrusion when the clearance ratio (CL / t) is 0% when the press punching die shown in FIGS. 3 and 9 is used. It is a figure which shows the relationship with who (h-hs) in the peripheral part of No. based on experiment.
FIG. 12 is a diagram showing the shape of a protrusion with rounded peripheral corners.
FIG. 13 is a view showing a cross-section of a floor board molded product in which protrusions are formed by half-cutting the workpiece colored in advance on the surface according to the present invention.
FIG. 14 is a view for explaining a first embodiment of a coating method for coloring only a concave portion on the surface side of a floor board molded product in which protrusions are formed by half-cut molding according to the present invention.
FIG. 15 is a view for explaining a second embodiment of the coating method for coloring only the concave portion on the surface side of the floor board molded product in which the projecting portion is formed by half punching according to the present invention.
FIG. 16 is a cross-sectional view showing a floor board molded product obtained by removing the material of the recesses by cutting or etching.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Floor board (product), 1a, 1b, 1c, 1d ... Floor board molded article, 2 ... Railing, 3 ... Projection part, 4 ... Recessed part, 5 ... Rising part, 6a, 6b, 6c ... Paint (coloring), 7 ... Punch, 8 ... Die, 9 ... Plate presser, 10 ... Reverse presser, 11 ... Stopper, 12, 13 ... Pressure applying means, 14 ... Nozzle, 15 ... Screen mask, 20, 20 '... Workpiece, 22 ... Connection part (Rise), 30 ... Paint.

Claims (2)

A preparation step of preparing a sheet-applied plate-like workpiece with a sheet attached to the surface;
Half-molding was performed on the sheet pasting plate-like workpiece prepared in the preparation step by applying a molding load between the punch and the die, and a large number of protrusions were two-dimensionally arranged on the surface side. A molding process to obtain a floorboard molded product;
A removal step of removing the sheet attached to the recesses between the protrusions of the floor plate molded product obtained in the molding step;
A coloring step of coloring the surface of the floor plate molded product from which the concave sheet has been removed in the removing step;
And a removing step of removing the sheet attached to the surface of the protrusion of the floor plate molded product colored in the coloring step. Plate manufacturing method of floorboards as claimed in claim 1 man conveyor entrance according to hair line process on the surface of the workpiece is characterized in that it is applied in the sheet sticking plate workpiece that has been prepared in the preparation step.

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