JP6973769B2 - Porcelain panel - Google Patents

Description

The present invention relates to a ceramic plate by firing a plate of clay with Shirushihana on one side of the plate surface.

Conventionally, in a porcelain plate made by firing a clay plate, there has been one in which irregularities (in the present invention, this is referred to as a "print flower") remaining on the trace of pressing an arbitrary solid template are formed on the plate surface. .. A technique for producing such a ceramic plate is described in, for example, Patent Document 1 below. This Patent Document 1 discloses a technique of molding a clay molded plate and firing an arbitrary stamped flower on the plate surface to obtain a porcelain plate.

Japanese Unexamined Patent Publication No. 02-125059

However, in the prior art of Patent Document 1, since the embossed roll is pressed against the molded plate to form a stamp, the clay on the plate surface portion of the molded plate is directed toward the peripheral edge of the molded plate when the stamp is formed. Will be done. For this reason, the above-mentioned conventional technique has a problem that the peripheral portion of the porcelain plate obtained by forming a flower stamp on the molded plate and firing it is distorted.

Therefore, the present invention addresses the above-mentioned problems, and an object of the present invention is to suppress the distortion of the peripheral portion that occurs in the porcelain plate on which the stamped flower is formed.

According to one feature of the present invention, there is provided a method for producing a porcelain plate, which produces a porcelain plate by firing a clay plate having a stamped flower, which is a trace of pressing a solid, on one side of the plate surface. This method of producing a ceramic plate has a molding plate preparation step of preparing a clay molded plate having a crushable zone that reduces the amount of deformation of the plate surface by deforming itself with respect to an external force applied to the plate surface. There is. Further, in the above-mentioned method for producing a ceramic plate, the molded plate is placed on a pedestal, and the plate surface on one side of the molded plate faces upward, and the molded plate is a solid for forming a flower stamp on the plate surface. It has a molded plate set step in which a template is placed. Further, in the above-mentioned production method of the ceramic plate, the template placed on the upper plate surface of the molded plate is pressed by pushing down the pressing die with the peripheral edge of the molded plate surrounded by the frame, and the upper side of the molded plate is pressed. It has a molded plate processing step in which a flower is formed on the plate surface and the molded plate is processed into a press molded plate.

In the method for producing a ceramic plate according to the present invention, the crushable zone of the molded plate is deformed at the time of forming the imprint, thereby suppressing the clay on the plate surface portion of the molded plate from being directed toward the peripheral portion of the molded plate. Further, by surrounding the peripheral portion of the molded plate with a frame to form a flower, even if the clay of the molded plate is applied toward the peripheral portion of the molded plate, the peripheral portion is distorted by the frame. Suppress. As a result, it is possible to suppress the distortion of the peripheral portion that occurs in the ceramic plate when the ceramic plate on which the imprint is formed is produced.

In one of the preferred embodiments of the above-mentioned method for producing a porcelain plate, the lower surface of the stamp and the upper plate surface of the molded plate exert a pressing force on the lowest point of pushing down the stamp in the molding plate processing step. Set to a position where it will not be touched. According to this embodiment, a flower having the same depth as this thickness can be formed on the plate surface of the press-molded plate regardless of the thickness of the template, and further, the plate surface is distorted in the plate thickness direction. The occurrence can be regulated and suppressed by the lower surface of the push die.

Further, in one of the preferred embodiments in the method for producing a ceramic plate, a magnetic material capable of being attracted by the magnetic force of a lifting magnet is used as the template. Here, the lifting magnet is a magnetic force generator that can switch on / off the magnetic force generation. Further, in the above embodiment, when the template is placed on the plate surface of the molded plate, the template in the state of being attracted by the magnetic force to the lifting magnet in the on state is placed on the plate surface of the molded plate and then the lifting magnet. Performs an off operation. Further, in the above embodiment, after performing the molding plate processing step, the lifting magnet in the off state is placed on the template on the press molding plate and the lifting magnet is turned on to attract the template to the lifting magnet. Then, the attracted template is pulled away from the press-molded plate together with the lifting magnet, and a pulling operation is performed.

According to the above embodiment, one or more templates placed on the plate surface of the molded plate can be collected and reused while maintaining the arrangement pattern. This makes it possible to mass-produce ceramic plates with the same design of the seal flower.

Further, in the above-described embodiment, the suction operation of attracting the template to the lifting magnet is performed before the above-mentioned off operation is performed. In this suction operation, the lifting magnet in the off state can be placed on the template prepared in the state of being placed on the table in advance, and the lifting magnet can be turned on. In this case, after performing the pulling operation, it is preferable to return the template in a state of being attracted by magnetic force to the lifting magnet in the on state on the table, and then perform the returning operation of turning off the lifting magnet. According to these operations, when the template is collected and reused, it is checked whether the template arrangement pattern is misaligned on the table, and if there is a misalignment, this misalignment is corrected. You can get an opportunity.

Further, in one of the preferred embodiments in the method for producing a ceramic plate, in the molding plate preparation step, a molded plate made of streaky clay in which the crushable zone extends in a predetermined one direction is prepared. Then, in the molded plate setting step, the template is placed on the plate surface of the molded plate so that all the edges in the template are non-parallel to the streaky clay.

Also provided is an invention of a porcelain plate formed by firing a clay molded plate after pressing it on a press machine. This porcelain plate has a streak-like portion provided so as to extend in a predetermined direction, and a stamp flower which is a mark of pressing a template on the plate surface. This imprint is formed so that all edges of the imprint are non-parallel to the streaky portion.

The configuration in which the crushable zone of the molded plate is made of streaky clay extending in a predetermined one direction has the advantage that the molded plate can be continuously produced by extrusion molding of clay, and cracks are likely to occur in the predetermined one direction. There is a demerit that it becomes. Further, in the molded plate, the stamped flower formed by pressing the template is a portion where cracks are likely to occur in the direction along the edge thereof. Here, according to the configuration in which the direction in which the streaky clay of the molded plate is stretched and the edge of the template and the flower stamp are non-parallel, the possibility of cracking in the molded plate can be reduced.

Further, in one of the preferred embodiments in the method for producing a ceramic plate, in the molding plate preparation step, a molded plate having a hollow structure opened at the end face of the peripheral portion is prepared. Further, in the molding plate processing step, the peripheral portion of the molding plate is pressed and shaped by pushing down the pressing die to perform an operation of closing all the openings of the hollow structure. In this case, in the molding plate processing step, it is preferable that the timing at which the opening of the hollow structure is closed is set to be later than the timing at which the flower stamp is formed on the upper plate surface of the molding plate. According to this setting, when the imprint is formed on the molded plate, an escape route for air in the hollow structure of the molded plate is secured, and this air prevents the molding plate from being hindered from being shaped into the press-molded plate. be able to.

The porcelain plate produced in the above embodiment is a porcelain plate formed by firing a clay molded plate after applying it to a press machine. This porcelain plate has a hollow structure in which a cavity provided along the plate surface is closed at a peripheral portion. Further, the porcelain plate is provided with a stamped flower which is a mark of pressing the template against the portion forming the outer wall of the hollow structure on the plate surface of the molded plate. This imprint is a recessed hole in which the outer wall of the hollow structure is depressed toward the inside of the hollow structure.

Further, in the above embodiment, in the molding plate setting step, it is preferable to set the molded plate having the uneven pattern formed on the plate surface on one side in advance in a state where the template is placed on the uneven pattern. In this case, the porcelain plate produced is formed in a state in which the imprint is crushed on the concavo-convex pattern different from the imprint. This makes it possible to increase the variation in the design of the ceramic plate produced.

Further, in the above embodiment, it is preferable to perform an operation of applying unevenness to the surface layer of the plate surface on the side where the stamped flower is formed on the press-molded plate after performing the molded plate processing step. In this case, the porcelain plate produced has irregularities formed so as to be interrupted at the portion of the stamped flower on the surface layer of the board surface on the side where the stamped flower is formed. This makes it possible to increase the variation in the design of the ceramic plate produced.

It is a top view which showed the ceramic plate 10 which concerns on one Embodiment. It is a flowchart which shows the production method of the ceramic plate 10 which concerns on one Embodiment. It is explanatory drawing explaining step S10 and step S20 of FIG. It is explanatory drawing explaining the step S40 of FIG. It is explanatory drawing explaining the step S60 of FIG. It is explanatory drawing explaining the step S60 of FIG. It is explanatory drawing explaining the step S60 of FIG. It is a right side view showing the cradle 92D of FIG. It is a top view which showed the cradle 92D of FIG. It is a right side view showing the push die 92A of FIG. It is a top view which showed the push die 92A of FIG. It is explanatory drawing explaining the step S80 of FIG. It is a top view which showed the modification of the ceramic plate 10 of FIG. It is a perspective view which showed the modification of the ceramic plate 10 of FIG. It is a perspective view which showed the modification of the ceramic plate 10 of FIG. It is a photograph which showed the modification of the ceramic plate 10 of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

First, the configuration of the ceramic plate 10 according to the embodiment will be described. The porcelain plate 10 (see FIG. 1) is a porcelain plate formed by firing a press-molded plate 20 (see FIG. 12), which is a plate material obtained by press-molding clay. Here, the press-molded plate 20 is produced by applying the clay-molded plate 30 to the press machine 92 (see FIG. 7).

The porcelain plate 10 has a hollow structure 12 in which a plurality of long cavities are arranged side by side. The hollow structure 12 has a structure in which a cavity provided along the plate surface 11 of the ceramic plate 10 is closed by a peripheral edge portion 10A of the ceramic plate 10. Here, the hollow structure 12 is provided as a through-hole-shaped cavity (see FIG. 4) opened in the end surface 10B of the peripheral edge portion 10A in the molded plate 30, and when the molded plate 30 is processed into the press-molded plate 20. The opening is closed and firing is performed in this state. Further, in the hollow structure 12, the streak-like portion 12A in which the streak-like clay 20A provided so as to extend in a predetermined one direction (from the front side of the paper surface to the back side of the paper surface in FIG. 12) in the press-molded plate 20 is fired. Is provided. The streaky portion 12A is provided on the ceramic plate 10 so as to extend in the longitudinal direction (left-right direction in FIG. 1) of the cavity of the hollow structure 12.

Further, on the plate surface 11 of the ceramic plate 10, a stamped flower 11A, which is a recessed hole in which the outer wall of the hollow structure 12 is depressed toward the inside of the hollow structure 12, is formed. In this stamp 11A, the trace of pressing one or more templates 91 (see FIG. 4) against the portion forming the outer wall of the hollow structure 12 on the plate surface of the molded plate 30 remains until after the press-molded plate 20 is fired. Is. In this embodiment, since the diamond-shaped iron expanded metal is used as the template 91, the stamp flower 11A exhibits a diamond-shaped net shape.

Subsequently, each series of steps executed when the producer (not shown) produces the above-mentioned ceramic plate 10 will be described with reference to the flowchart shown in FIG.

When producing the porcelain plate 10, the producer first executes step S10 shown in FIG.

In this step S10, the producer drives the extruder 90 shown in FIG. 3 and supplies the clay to the extruder 90. At this time, the extruder 90 kneads the supplied clay and extrudes the clay 30A from the base 90A as a plate-shaped clay 30A, and conveys the clay 30A on the roller conveyor 90B. The extrusion machine 90 adjusts the water content of the supplied clay when it is kneaded, so that the clay 30A extruded from the base 90A can be easily deformed or cut by an external force.

Further, the producer executes step S20 shown in FIG.

In this step S20, the producer moves the cutting device 90C previously attached to the roller conveyor 90B at the timing when the clay 30A is extruded to a predetermined length on the roller conveyor 90B. As a result, the producer prepares the clay molding plate 30 as a rough cut from the clay 30A on the roller conveyor 90B.

By the way, the extruder 90 is provided with a comb-shaped middle ball (not shown) in a portion on the upstream side of the base 90A in the flow in which the clay 30A is extruded. The middle ball is provided with a through hole extending in a direction parallel to the extruding direction in the extruded clay 30A by directing the teeth of the comb toward the mouthpiece 90A. Further, the cutting device 90C has a hollow structure in which the molded plate 30 obtained by cutting the clay 30A on the roller conveyor 90B in the direction perpendicular to the extrusion direction of the clay 30A is opened in the end surface 10B of the peripheral portion 10A thereof. It is a plate having a predetermined plate thickness provided with 12 (see FIG. 4). Here, the above-mentioned steps S10 and S20 correspond to the "molded plate preparation step" in the present invention.

Following step S20, the producer performs step S30 shown in FIG.

In this step S30, the producer conveys the molded plate 30 cut in step S20 to the flatbed 91C shown in FIG. 4, and places the molded plate 30 on the flatbed 91C. At this time, the producer assumes that the plate surface 11 on one side of the molded plate 30 faces upward (upper side in FIG. 4).

Following step S30, the producer performs step S40 shown in FIG.

In this step S40, the producer first prepares a lifting magnet 91A, which is a magnetic force generating device capable of switching on / off of magnetic force generation. In the present embodiment, the lifting magnet 91A includes a rotatable switch lever 91B, and the on / off of magnetic force generation can be switched depending on the rotation position of the switch lever 91B.

Subsequently, as shown by the solid line in FIG. 4, the producer places the lifting magnet 91A in the off state on the plurality of templates 91 prepared in the state of being placed on the table 91D in advance. Then, the producer rotates the switch lever 91B to turn on the lifting magnet 91A. At this time, since the template 91 is formed of a magnetic material (specifically, iron) to a size that allows the magnetic flux of the lifting magnet 91A to be concentrated and passed through, the lifting magnet does not move on the stand 91D. It is adsorbed to 91A. Therefore, the above operation is also referred to as "adsorption operation" in the following.

Subsequently, as shown by a virtual line in FIG. 4, the producer moves the lifting magnet 91A in a state where the template 91 is attracted, and places these templates 91 on the plate surface 11 of the molded plate 30. Then, the producer separates the template 91 from the lifting magnet 91A by rotating the switch lever 91B to turn off the lifting magnet 91A. This operation is also referred to as "off operation" in the following.

Since the molded plate 30 has the streaky clay 20A, cracks are likely to occur in the direction in which the streaky clay 20A extends. Further, in the molded plate 30, the stamp flower 11A is a portion where stress is likely to be concentrated in the direction along the edge portion thereof. Therefore, when the template 91 is placed on the plate surface 11 of the molded plate 30, the template 91 may be arranged so that all the edges of the template 91 are non-parallel to the streaky clay 20A. preferable. As a result, the stamped flower 11A can be formed so that all the edges of the stamped flower 11A are non-parallel to the streaky clay 20A, and the possibility of cracking in the molded plate 30 can be reduced. When the above method is adopted, the stamped flower 11A of the ceramic plate 10 produced is formed so that all the edges of the stamped flower 11A are non-parallel to the streaky portion 12A, as shown in FIG. It will be.

Following step S40, the producer performs step S50 shown in FIG.

In this step S50, the producer sets the molded plate 30 on the press machine 92 shown in FIG. 5 with the template 91 resting on the plate surface 11. The press 92 includes a push die 92A that can be pushed down and pulled up, and a flat plate-shaped cradle 92D located under the push die 92A. Therefore, the producer puts the molding plate 30 on the cradle 92D and sets the stamp 92A of the press 92 in a pulled up state (see FIG. 5). At this time, the producer can set the molding plate 30 on the press 92 by lifting and moving the molding plate 30 on which the template 91 is placed by a vacuum lift (not shown). Here, each step from step S30 to step S50 described above corresponds to the "molded plate set step" in the present invention.

Following step S50, the producer performs step S60 shown in FIG.

In this step S60, the producer drives the press 92 to push down the press 92A of the press 92, as shown in FIG. Here, as shown in FIGS. 10 and 11, a frame 92C projecting downward is attached to the push die 92A. Further, as shown in FIGS. 8 and 9, a frame 92F projecting upward is attached to the cradle 92D. The frame 92F and the frame 92C surround the peripheral edge portion 10A of the molded plate 30 in a state where the push die 92A is pushed down (see FIG. 7).

Further, the lowest point of pushing down of the push die 92A is set at a position (see FIG. 6) where the lower surface of the push die 92A and the upper plate surface 11 of the molded plate 30 are in contact with each other without exerting pushing pressure on each other. NS. Therefore, as shown in FIG. 6, the template 91 placed on the molded plate 30 is pressed by the stamping die 92A regardless of the thickness thereof and is sunk into the plate surface 11, and the template is formed on the plate surface 11. The template 11A having the same depth as the thickness of 91 is formed.

At this time, the streaky clay 20A located on the lower side (lower side in FIG. 6) of the stamp flower 11A on the molded plate 30 is crushed in the vertical direction (vertical direction in FIG. 6) and the clay on the lower side of the stamp flower 11A. Is moved to the inner side of the hollow structure 12 to suppress deformation of the plate surface 11. That is, the streaky clay 20A functions as a crushable zone that reduces the amount of deformation of the plate surface 11 by deforming itself with respect to the external force applied to the plate surface 11. Further, when the clay around the imprint 11A is directed toward the peripheral edge portion 10A in the molded plate 30, the frame 92C and the frame 92F (see FIG. 7) surrounding the peripheral edge portion 10A are distorted in the peripheral edge portion 10A. Suppress that. Further, when the clay is applied in the plate thickness direction in the molded plate 30, the lower surface of the stamp 92A and the upper surface of the pedestal 92D regulate and suppress the distortion of the plate surface 11 in the plate thickness direction.

Further, as shown in FIG. 7, the push die 92A and the cradle 92D of the press machine 92 are provided with holding portions 92B and 92E that move up and down independently of the push die 92A, respectively. These pressing portions 92B and 92E press and shape the peripheral edge portion 10A of the molded plate 30 to process the molded plate 30 into a press-molded plate 20. Therefore, in the following, the step S60 is also referred to as a “molded plate processing step”.

Here, in the forming plate processing step, the pressing portions 92B and 92E are driven at the timing after the pressing die 92A is pushed down to the lowest point and the formation of the stamp 11A is completed, and the opening of the hollow structure 12 in the forming plate 30 is completed. All are closed. According to this setting, when the imprint 11A is formed on the molded plate 30, the air in the hollow structure 12 of the molded plate 30 is released from the opening of the hollow structure 12, and the air in the hollow structure 12 is released to the molded plate 30. It is possible to avoid obstructing the shaping of the press-molded plate 20.

Following the molded plate processing step described above, the producer performs step S70 shown in FIG.

In this step S70, the producer puts the press-molded plate 20 in the state where the template 91 is embedded in the plate surface 11 in the state where the stamp 92A of the press machine 92 is pulled up (see FIG. 5), and puts the template 91 up. In this state, the press 92 is conveyed from the pedestal 92D to the flatbed 91E shown in FIG. At this time, the producer can transport the press-molded plate 20 to the flatbed 91E by lifting and moving the press-molded plate 20 by a vacuum lift (not shown). The flatbed 91E to which the press-molded plate 20 is conveyed in step S70 and the flatbed 91C to which the molded plate 30 is conveyed in step S30 may be different or the same.

Following step S70, the producer performs step S80 shown in FIG.

In this step S80, as shown by the solid line in FIG. 12, the producer prepares the lifting magnet 91A used in the step S40 in an off state, and the lifting magnet 91A is placed on the flatbed 91E. Place it on the template 91 above. Then, the producer rotates the switch lever 91B to turn on the lifting magnet 91A, so that the template 91 is attracted to the lifting magnet 91A.

Subsequently, as shown by a virtual line in FIG. 12, the producer moves the lifting magnet 91A in a state where the template 91 is attracted, and pulls the template 91 away from the press molding plate 20 to remove the template 91. This operation is also referred to as a "pulling operation" in the following.

Here, the producer who has performed the pulling operation returns the lifting magnet 91A attracted by the template 91 to the table 91D. Then, the producer separates the template 91 from the lifting magnet 91A by performing an operation of turning off the lifting magnet 91A. This operation corresponds to the "return operation" in the present invention.

According to each of the above-mentioned operations, the template 91 placed on the plate surface 11 of the molded plate 30 by the off operation can be collected and reused by the pulling operation while maintaining the arrangement pattern. This makes it possible to mass-produce the ceramic plates 10 having the same design of the Inuka 11A. Further, when the template 91 is collected and reused, it is checked whether the arrangement pattern of the template 91 is misaligned on the stand 91D, and if there is a misalignment, there is an opportunity to correct this misalignment. Obtainable. In the case where the stamped flower 11A is continuously formed on the plurality of molded plates 30, when the stamped flower 11A by the template 91 is formed on the upper surface of the molded plate 30, the template 91 is formed on the next molded plate 30. It is preferable to prepare a plurality of sets of the template 91 and the lifting magnet 91A so as to simultaneously perform the work of removing the template 91 from the press-molded plate 20 on which the imprint 11A is formed.

Following step S80, the producer performs step S90 shown in FIG.

In this step S90, the producer carries the press-molded plate 20 from which the template 91 is separated into a drying oven (not shown) and dries it. As a result, the press-molded plate 20 is transformed into a state in which it can be fired into a ceramic plate 10 (see FIG. 1).

Following step S90, the producer performs step S100 shown in FIG.

In this step S100, the producer moves the press-molded plate 20 altered by drying from the drying furnace (not shown) to the firing furnace (not shown), and the press-molded plate 20 is transferred to the porcelain plate in this firing furnace. Bake to 10 (see FIG. 1). In the present embodiment, the firing furnace makes the color of the ceramic plate 10 black by smoking in the firing process.

The present invention is not limited to the appearance and the configuration described in the above-described embodiment, and various changes, additions, and deletions can be made without changing the gist of the present invention. For example, the following various modifications can be implemented.

(1) The flower stamp on the ceramic plate is not limited to the one having a diamond-shaped net shape using the diamond-shaped expanded metal as a template, and can be changed to various stamp flowers as shown in FIGS. 13 to 16, for example. Here, the flower 11A of the ceramic plate 10 shown in FIG. 16 can be formed by using a mosaic tile sheet (not shown) having a different thickness of each tile as a template. Further, the flower 11A of the ceramic plate 10 shown in FIG. 15 can be formed by using various branches and leaves collected from the natural environment as templates. In this case, the branches and leaves sunk into the press-molded plate are naturally peeled off when the press-molded plate is dried or burned down when the press-molded plate is fired. The work of removing from can be omitted.

(2) The porcelain plate 10 shown in FIG. 1 has only a flower stamp 11A formed on a molded plate 30 (see FIG. 3) having a flat plate surface 11 as a pattern. However, the porcelain plate may be one in which a flower stamp is formed on a molded plate in which an uneven pattern is formed in advance on one side of the plate surface. In this case, as shown in FIG. 15, the ceramic plate 10 is formed in a state in which the stamped flower 11A is formed by crushing the uneven pattern 11B on the uneven pattern 11B different from the stamped flower 11A. Here, in the ceramic plate 10 shown in FIG. 15, the uneven pattern 11B is a scratch line formed at the time of extrusion molding of the molded plate, while the uneven pattern 11B is a flower to be applied after molding the molded plate. May be good. Further, the porcelain plate may have irregularities on the surface layer of the plate surface on the side where the stamped flower is formed on the press-molded plate after the molding plate processing step is performed. In this case, as shown in FIGS. 13 and 14, the ceramic plate 10 has an uneven surface 11C formed so as to be interrupted at the portion of the flower 11A on the surface layer of the plate surface 11 on the side where the flower 11A is formed. Will be. Here, in the ceramic plate 10 shown in FIGS. 13 and 14, the unevenness 11C is a knurl carved in various directions by a full screw or a knurl having a shape similar to that of a full screw, and the apparent brightness and darkness vary depending on the viewing angle. It is something that changes. According to each of the above-mentioned modifications, the variation of the design of the ceramic plate 10 can be increased.

(3) In the ceramic plate, the hollow structure is not an essential structure. That is, as shown in FIG. 15, the porcelain plate 10 may be, for example, a rib in which the streak-shaped portion 12A is projected to the outside on the opposite side (lower side in FIG. 15) from the flower stamp 11A. In this case, the molded plate prepared for the production of the ceramic plate 10 can be cut out from the tatara plate, which is a lump of clay, and produced.

(4) In the molding plate processing step, the stamping die of the press machine can be pushed down so that the stamping die exerts a pressing force on the upper plate surface of the molded plate. According to this method, a press mark is formed on the surface of the ceramic plate separately from the stamped flower, and the press mark can increase the variation of the design of the ceramic plate. In this case, by equipping the portion of the stamping die where the press mark is formed with the uneven design, the design corresponding to the uneven design can be formed as the press mark.

10 Ceramic plate 10A Peripheral part 10B End surface 11 Plate surface 11A Mark flower 11B Concavo-convex pattern 11C Concavo-convex 12 Hollow structure 12A Striped part 20 Press molded plate 20A Striped clay (crushable zone)
30 Molded plate 30A Clay 90 Extruder 90A Mouthpiece 90B Roller conveyor 90C Cutting device 91 Template 91A Lifting magnet 91B Switch lever 91C Flat base 91D Stand 91E Flat base 92 Press machine 92A Pushing die 92B Holding part 92C Frame 92D Receiving base 92E Holding part 92F Frame

Claims (4)

In pottery plate,
A hollow structure in which the cavities provided along the plate surface are closed at the peripheral edge, and
The flower stamps formed on the plate surface forming the outer wall of the hollow structure,
Equipped with
The flower is a recessed hole in which the outer wall of the hollow structure is depressed toward the inside of the hollow structure.
Porcelain panel. The ceramic plate according to claim 1.
The imprint is formed in a state in which the concavo-convex pattern is crushed on a concavo-convex pattern different from the imprint.
Porcelain panel. The ceramic plate according to claim 1 or 2.
The surface layer of the plate surface on the side where the flower is formed is provided with irregularities formed so as to be interrupted at the portion of the flower.
Porcelain panel. The ceramic plate according to any one of claims 1 to 3.
In the hollow structure, a streak-like portion provided so as to extend in a predetermined direction is provided.
The imprint is formed so that all edges of the imprint are non-parallel to the streaky portion.
Porcelain panel.

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