CN209920141U

CN209920141U - Ceramic tile mould and ceramic tile that extension ceramic tile mould support and this mould pressed

Info

Publication number: CN209920141U
Application number: CN201822200159.4U
Authority: CN
Inventors: 陈锐
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-26
Filing date: 2018-12-26
Publication date: 2020-01-10
Anticipated expiration: 2028-12-26

Abstract

A ceramic tile mould and expand the ceramic tile mould support and ceramic tile that this mould presses into, the ceramic tile mould, including the bevel edge shaping tooth locates in the inclined hole in the lower cover plate, the separation of bevel edge shaping tooth and lower cover plate opens through PU elastic glue or spring force between the two, spacing guide arm activity connects upper cover plate and lower cover plate, the upper and lower cover plate can move to closing up to the opposite direction, the upper cover plate pushes the bevel edge shaping tooth to stretch out along the inclined hole of the lower cover plate while closing up, PU elastic glue board locates between upper cover plate and lower cover plate, the elastic sealing rubber ring locates at the upper cover plate and lower cover plate side edge a week; an expanded ceramic tile mould support, in order to make the above-mentioned ceramic tile mould and mould of the similar function suitable for various ceramic tile moulds of different sizes, provide one kind and reserve the assembly opening, can move up and down the elasticity is opened and can adjust the expanded ceramic tile mould support of the active stroke; the ceramic tile is formed by pressing the ceramic tile mould or the combination of the ceramic tile mould and the expanded ceramic tile mould support.

Description

Ceramic tile mould and ceramic tile that extension ceramic tile mould support and this mould pressed

Technical Field

The utility model relates to a ceramic manufacture field, more specifically say, in particular to ceramic tile mould and ceramic tile that extension ceramic tile mould support and this mould pressed.

Background

The ceramic tile blank is formed by combining an upper die and a lower die which are fixed through mechanical equipment, the society always hopes to produce the ceramic tile with the characteristics of a dovetail groove for many years, effective concrete implementation equipment and a scheme are not provided for the ceramic tile with various dovetail groove characteristics, and the ceramic tile with the structural performance of the dovetail groove is thought and cannot be realized because the die needs to bear ultrahigh pressure and the fixed die cannot be used for demoulding after a dovetail groove structure is formed.

The patent number CN108466355A discloses a manufacturing device of a cross dovetail groove on the back of a ceramic tile and a manufacturing method thereof, the manufacturing device disclosed by the invention can manufacture the ceramic tile with the back grain of the cross dovetail groove structure within a certain size ceramic tile range and a small production range, but the technology has the following defects that the industrial production of the ceramic tile is influenced, firstly, the technology has no sealing member, dust mixed during air exhaust blocks a mould during mass production, and the mould is damaged or the pressing precision of the ceramic tile is reduced due to the filling of the gap of the mould; secondly, the front surface of the die is not treated by the technology, and powder is adhered during demoulding due to contact friction of an iron die and dust in mass production, so that the precision is influenced; finally, the bevel edge forming teeth of the cross dovetail groove are fixed on one bevel edge forming stripe, the bevel edge forming teeth are mutually related, the mutual influence is caused, the clamping of a die is easily caused or the abrasion of the die is increased when the material is slightly deformed, the service life of the die is shortened, the pressure of the hydraulic machine is transmitted to the bottom pressing plate through the bevel edge forming part, and the damage risk is increased.

The existing ceramic tile back pattern mold core plate is a whole plate mold core when contacting a ceramic tile panel due to the ultrahigh pressure when a hydraulic press presses a ceramic tile blank, and meanwhile, the mold core is made of steel, so that the density is high, the weight is high, and the manufacturing equipment disclosed by the invention belongs to a movable mold, is a novel technology, can increase the failure rate when introducing a similar movable mold, especially directly applies the similar movable mold to the large-area ceramic tile blank for pressing, can not maintain regionally, reduces the production efficiency, and needs a large amount of customized molds due to different shrinkage rates of ceramic tile blank powder, and the different ceramic tile mold sizes used by different manufacturers are different, and the directly applied movable mold is not beneficial to the popularization of the novel technology.

Disclosure of Invention

The problem to be solved by the present invention is to provide a tile mold, which overcomes the mutual influence between bevel edge forming teeth, overcomes the powder accumulation and mold clamping of the movable mold, reduces the transmission path of force in the movable mold, prolongs the service life of the movable mold, and provides a tile mold, aiming at the above-mentioned defects of the prior art, especially the problems of the manufacturing device and the manufacturing method of the cross dovetail groove on the back of the tile disclosed in patent CN 108466355A; the expansion ceramic tile mould support is simple, wear-resistant and capable of moving up and down synchronously and is used for assembling the movable mould.

In order to achieve the above object, the utility model provides a following technical scheme: a ceramic tile mould comprises an independent bevel edge forming tooth with a sealing structure and a limiting structure, an upper cover plate with a limiting hole and a sleeve structure hole, a lower cover plate with staggered opposite bevel holes, PU (polyurethane) elastic glue or a spring for rebounding the bevel edge forming tooth, a limiting guide rod for movably connecting the upper cover plate and the lower cover plate, a PU elastic glue plate for elastically separating the upper cover plate and the lower cover plate, and an elastic sealing rubber ring for laterally enclosing and sealing the upper cover plate and the lower cover plate; the bevel edge forming teeth are positioned in the inclined holes in the lower cover plate, the bevel edge forming teeth are separated from the lower cover plate through PU elastic glue or spring elasticity between the bevel edge forming teeth and the lower cover plate to be opened, the limiting guide rod is movably connected with the upper cover plate and the lower cover plate, the upper cover plate and the lower cover plate can move oppositely to be closed, the bevel edge forming teeth are pushed by the upper cover plate to extend out along the inclined holes of the lower cover plate during closing, the PU elastic glue plate is positioned between the upper cover plate and the lower cover plate, and the elastic sealing rubber ring is positioned on the periphery.

A ceramic tile mould comprises an independent bevel edge forming tooth with a sealing structure and a limiting structure, wherein the vertical section of the bevel edge forming tooth is of a parallelogram structure, the upper part of the bevel edge forming tooth is enlarged by a blunt corner edge at the side close to an upper cover plate, one side of the bevel edge forming tooth is perpendicular to the blunt corner edge, one to two sealing rubber rings are arranged at the middle lower part of the bevel edge forming tooth close to a lower cover plate, the upper end of the bevel edge forming tooth is parallel to the upper cover plate, and the lower opening of the bevel edge forming tooth is in contact with a notch which is inverted in the front of a ceramic tile blank and covered; the limit cap of the bevel edge forming tooth is propped against the PU elastic glue or the spring and then movably arranged in the inclined hole of the lower cover plate.

The utility model provides a ceramic tile mould, is including taking the lower apron of staggered arrangement subtend inclined hole, wherein, the inclined hole, the parallelogram structure is personally submitted to the vertical section, the inclined hole corresponds the position of the spacing cap of hypotenuse shaping tooth, enlarges the step breach on one side perpendicular to inclined hole limit, the step breach is used for bearing PU elasticity and glues or the spring.

The utility model provides a ceramic tile mould, includes the PU elasticity offset plate of elasticity separation upper cover plate and lower apron, wherein, PU elasticity offset plate be located upper cover plate and apron down between, there is the slot hole in the position of installing the upper cover plate of PU elasticity offset plate or apron down, the degree of depth of slot hole is less than the thickness of PU elasticity offset plate and subtracts the activity stroke of apron from top to bottom.

An expanded ceramic tile mould support is provided, in order to enable the ceramic tile mould and moulds with similar functions to be suitable for ceramic tile moulds with different sizes, the expanded ceramic tile mould support is provided with an assembly hole, can be opened up and down by movable elastic force and can adjust the movable stroke, wherein the expanded ceramic tile mould support comprises a lower cover plate with the reserved assembly hole, an upper cover plate with a limiting and sleeve structure hole, a limiting guide rod movably connecting the upper cover plate and the lower cover plate, and a PU elastic rubber plate for separating the upper cover plate and the lower cover plate by elastic force; the limiting guide rod is movably connected with the upper cover plate and the lower cover plate, the upper cover plate and the lower cover plate can move oppositely to be folded, the PU elastic rubber plate is positioned between the upper cover plate and the lower cover plate, the lower opening of the reserved assembly hole of the lower cover plate is flatly and fixedly connected with the lower cover plate of the ceramic tile mold to be assembled, the upper cover plate is fixedly connected with the upper cover plate of the ceramic tile mold to be assembled, and the moving stroke of the upper cover plate and the lower cover plate is equal to the moving stroke of the ceramic tile mold to; extension ceramic tile mould support can assemble the ceramic tile mould and have the ceramic tile mould of similar functional structure.

The utility model provides an extension ceramic tile mould support, is including the lower apron of reserving the assembly entrance to a cave in the area, wherein, lower apron including reserving the assembly entrance to a cave, the entrance to a cave periphery has big-end-up's step hem, corresponds big-end-up's the step hem of the lower part apron of the ceramic tile mould that will assemble, the seam behind the assembly ceramic tile mould is as the exhaust seam when the ceramic tile body suppression.

The utility model also provides a ceramic tile, it from top to bottom a ceramic tile mould or ceramic tile mould and the combination suppression of extension ceramic tile mould support form, the visual expression of ceramic tile back of the body line on, the back of the body line of pressing by each tooth of hypotenuse shaping tooth all has one side to be the acute angle twill, acute angle twill cross arrangement staggered opposite direction of falling.

The utility model also provides a ceramic tile it from top to bottom the combination suppression of ceramic tile mould and extension ceramic tile mould support form, wherein, the ceramic tile back of the body line in the position of apron reservation assembly entrance to a cave under extension mould support is by the ceramic tile mould suppression line of assembly.

Compared with the prior art, implement the utility model discloses a ceramic tile mould and ceramic tile mould support and the ceramic tile that this mould pressed have following beneficial effect: the utility model carries out technical improvement on the basis of the published technology of the manufacturing equipment of the cross dovetail groove on the back of the ceramic tile and the manufacturing method thereof disclosed by the patent CN108466355A, overcomes the problems existing in the technology, adds an exhaust system according to the characteristics of the improved mould, simplifies the automatic production process, improves the production efficiency and reduces the production cost; further specifically, the bevel edge forming teeth of the bevel edge forming part of the disclosed technology are optimized, each bevel edge forming tooth is made into an independent bevel edge forming part, upper teeth of the bevel edge forming part of the prior disclosed technology are removed, the retraction function of the upper teeth is replaced by resilience of PU (polyurethane) elastic glue or elasticity of a spring of the bevel edge forming part, meanwhile, after the bevel edge forming parts are independent, the mutual influence among the forming parts is eliminated, the patterns are richer, the service life of the die is prolonged, the force transmission function of the bevel edge forming part of the disclosed technology is reduced, and the service life of the die is prolonged; still further specificly, provide an extension ceramic tile mould support, can will the utility model discloses the ceramic tile mould stated and the ceramic tile mould that has similar function make into the mould unit, reassemble on the assembling die, can adapt to various not unidimensional ceramic tile mould needs, simplify maintenance flow, can directly change the mould unit that needs the maintenance and not influence other mould units.

Drawings

Fig. 1 is a structure view of the tile mold of the present invention.

Fig. 2 is a sectional view of the working state of the ceramic tile mould of the utility model.

Figure 3 is the utility model discloses a big appearance of ceramic tile mould hypotenuse shaping tooth.

Fig. 4 is the combined view of the expansion die holder and the tile die of the present invention.

Fig. 5 is the utility model discloses an extension mould support assembly preformed hole big appearance picture.

Fig. 6 is a view of the ceramic tile pressed by the mold and the combination of the mold and the expanding mold of the present invention.

Wherein: 101. a lower cover plate of the ceramic tile mould; 102. an upper cover plate of the ceramic tile mould; 103. bevel edge forming teeth; 104. rebounding PU glue or a spring; 105. the upper cover and the lower cover of the mould are limited by the guide rod; 106. the upper cover and the lower cover rebound PU elastic rubber plates; 107. a lateral elastic sealing rubber ring; 1021. an upper cover limiting sleeve hole; 1031. a bevel edge forming tooth sealing rubber ring; 1032. covering PU vulcanized rubber on the bottom surface of the bevel edge forming tooth; 2. expanding a lower cover plate of the ceramic tile mould support; 201. an upper limiting guide rod and a lower limiting guide rod of the expansion mould; 202. the upper cover and the lower cover of the expansion die rebound PU elastic glue; 203. reserving an assembly hole; 3. expanding an upper cover plate of the ceramic tile mould support; 301. expanding a limiting sleeve hole of an upper cover of the mold; 4. the ceramic tile back pattern is formed by combining and pressing a ceramic tile mold and a support; 401. the ceramic tile back lines are formed by pressing a single ceramic tile mold; 4011. the utility model has the advantages of play falling-off prevention's back acute angle twill.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and the detailed description.

As shown in figures 1-3, a ceramic tile mould comprises a ceramic tile mould lower cover plate 101, a ceramic tile mould upper cover plate 102, bevel edge forming teeth 103, resilience PU glue or springs 104, mould upper and lower cover limiting guide rods 105, upper and lower cover resilience PU elastic glue plates 106, a lateral elastic sealing rubber ring 107, an upper cover limiting sleeve hole 1021, a bevel edge forming teeth sealing rubber ring 1031, bevel edge forming teeth bottom surface inverted notch covering PU vulcanized rubber 1032, bevel edge forming teeth 103 are positioned in inclined holes of the ceramic tile mould lower cover plate 101, the separation of the bevel edge forming teeth 103 and the ceramic tile mould lower cover plate 101 is opened through the resilience of the resilience PU glue or springs 104 between the bevel edge forming teeth and the upper and lower cover plates 105, the ceramic tile mould upper cover plate 102 and the ceramic tile mould lower cover plate 101 are movably connected by the mould upper and lower cover plates, the upper and lower cover plates can be moved to be closed oppositely, the ceramic tile mould lower cover plate 101 pushes the bevel edge forming teeth 103 to extend out along, upper and lower lid resilience PU elasticity offset plate 106 is located between ceramic tile mould upper cover plate 102 and ceramic tile mould lower cover plate 101, and side direction elastic sealing rubber ring 107 is located ceramic tile mould upper cover plate 102 and ceramic tile mould lower cover plate 101 side a week.

As shown in fig. 1-3, a tile mold comprises an independent bevel edge forming tooth 103 with a sealing structure and a limiting structure, wherein the vertical section of the bevel edge forming tooth 103 is in a parallelogram structure, the upper part of the bevel edge forming tooth 103 is enlarged by a blunt edge at the side close to an upper cover plate 102 of the tile mold to form a limiting cap, one side of the limiting cap is perpendicular to the blunt edge, one to two rings of bevel edge forming tooth sealing rubber rings 1031 are arranged at the lower part of the bevel edge forming tooth 103 close to a lower cover plate 101 of the tile mold, the upper end of the bevel edge forming tooth 103 is parallel to the upper cover plate 102 of the tile mold, and a bevel edge forming tooth bottom inverted notch at the position where the lower opening of the bevel edge forming tooth 103 contacts; the limiting cap of the bevel edge forming tooth 103 is propped against the rebound PU glue or the spring 104 and then movably arranged in the bevel hole of the lower cover plate 101 of the ceramic tile mould.

As shown in fig. 3, a ceramic tile mould, apron 101 under the ceramic tile mould including the opposite direction inclined hole of area dislocation, wherein, the inclined hole, the vertical section is parallelogram structure, the inclined hole corresponds the position of the spacing cap of hypotenuse shaping tooth 103, enlarges the step breach on one side perpendicular to inclined hole limit, the step breach is used for bearing resilience PU glue or spring 104.

As shown in fig. 1, a ceramic tile mould, including elasticity separation ceramic tile mould upper cover plate 102 and ceramic tile mould lower cover plate 101 the upper and lower lid kick-back PU elasticity offset plate 106, wherein, upper and lower lid kick-back PU elasticity offset plate 106 be located between ceramic tile mould upper cover plate 102 and ceramic tile mould lower cover plate 101, the ceramic tile mould upper cover plate 102 of lid kick-back PU elasticity offset plate 106 or ceramic tile mould lower cover plate 101's position has the slot hole about the installation, the degree of depth of slot hole is less than the thickness of upper and lower lid kick-back PU elasticity offset plate 106 and subtracts the stroke of activity of upper and lower cover plate.

As shown in figures 4-5, an expanding ceramic tile mold support is provided for adapting the ceramic tile mold and molds with similar functions to ceramic tile molds of various sizes, wherein the expanding ceramic tile mold support comprises an expanding ceramic tile mold support lower cover plate 2, expanding mold upper and lower limit guide rods 201, expanding mold upper and lower cover rebound PU elastic glue 202, an reserved assembly hole 203, an expanding ceramic tile mold support upper cover plate 3, an expanding mold upper cover limit sleeve hole 301, an expanding mold upper and lower limit guide rod 201 connecting the expanding ceramic tile mold support upper cover plate 3 and the expanding ceramic tile mold support lower cover plate 2, the upper and lower cover plates can be moved to be folded oppositely, the expanding mold upper and lower cover rebound PU elastic glue 202 is positioned between the expanding ceramic tile mold support upper cover plate 3 and the expanding ceramic tile mold support lower cover plate 2, the lower opening of a reserved assembly hole 203 of the lower cover plate 2 of the expanded ceramic tile mold support is fixedly connected with a lower cover plate 101 of the ceramic tile mold to be assembled in a mutually flat mode, an upper cover plate 3 of the expanded ceramic tile mold support is fixedly connected with an upper cover plate 102 of the ceramic tile mold to be assembled, and the movable stroke of the upper cover plate and the lower cover plate is equal to that of the ceramic tile mold to be assembled; extension ceramic tile mould support can assemble the ceramic tile mould and have the ceramic tile mould of similar functional structure.

As shown in fig. 4-5, the expanded ceramic tile mold support lower cover plate 2 includes a reserved assembly hole 203, wherein the expanded ceramic tile mold support lower cover plate 2 includes the reserved assembly hole 203, a step folded edge with a larger upper part and a smaller lower part is arranged at the periphery of the reserved assembly hole 203, the step folded edge with the larger upper part and the smaller lower part corresponding to the lower cover plate of the ceramic tile mold to be assembled is arranged, and a joint seam after the ceramic tile mold is assembled is used as an exhaust seam when a ceramic tile blank is pressed.

As shown in fig. 6, the utility model also provides a ceramic tile, the line outward appearance includes ceramic tile mould and the ceramic tile back of the body line 4 that the support combination pressed, ceramic tile back of the body line 401 that single ceramic tile mould pressed, play anti-drop effect's acute angle of falling twill 4011, it from top to bottom a ceramic tile mould or ceramic tile mould and the combination suppression of extension ceramic tile mould support form, ceramic tile back of the body line visual expression on, the back of the body line of pressing by each tooth of hypotenuse shaping tooth all have one side be the acute angle of falling twill, the opposite direction is arranged alternately to the acute angle of falling twill.

Further explaining the working principle of the utility model, manufacturing inverted acute angle twill 4011 and tile back grain 4 with inverted acute angle twill 4011 for anti-falling, the core purpose of the utility model is that the active travel of the lower cover plate 2 and the upper cover plate 3 of the extended tile mold support is equal to the active travel of the upper cover plate 102 and the lower cover plate 101 of the tile mold and equal to the longitudinal active travel of the bevel edge forming teeth 103, the rebound PU elastic rubber plates 106 of the upper and lower covers and the rebound PU elastic rubber 202 of the upper and lower covers of the extended mold include separating the upper and lower cover plates, and also provide the prestress before the forming teeth 103 are extended for the bevel edge forming teeth 103 of the tile mold, the existence of the prestress, before the bevel edge forming teeth 103 of the tile mold are extended, the tile blank powder is pre-pressed in early stage, the concave position of the tile blank does not deform too much because the sectional area is smaller than the sectional area of the convex ridge, in comparison, the density of the ceramic tile green body texture concave powder is higher than that of the convex pattern position powder, so that the requirement that the ceramic tile is deep in texture and not deformed can be met; for a ceramic tile blank with a small single-piece area, under the condition that the exhaust requirement of a ceramic tile back mold is not high, the ceramic tile back pattern with the cross dovetail groove can be independently and directly applied by manufacturing; to the application of extension ceramic tile mould support, because the mould size diverse that different manufacturing enterprises adopted, if direct application the utility model discloses a ceramic tile mould, then there is various different sizes to the ceramic tile mould size on each hydraulic press production line, the maintenance also can only be customized, this is popularized very big unfavorable to the industrialization, extension ceramic tile mould support is relative to inlaying in the ceramic tile mould of reserving the hole, be difficult to damage, to join in marriage at reservation hole entrance to a cave size formatting and the installation of ceramic tile mould formatting size, then improve the application degree of cross dovetail ceramic tile mould greatly, the maintenance or change can both be accomplished fast, can produce unexpected industrial effect.

Various other modifications and changes can be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the protection scope of the present invention.

Claims

1. A ceramic tile mould is characterized by comprising an independent bevel edge forming tooth with a sealing structure and a limiting structure, an upper cover plate with a limiting hole and a sleeve structure hole, a lower cover plate with staggered opposite bevel holes, PU (polyurethane) elastic glue or a spring for rebounding the bevel edge forming tooth, a limiting guide rod for movably connecting the upper cover plate and the lower cover plate, a PU elastic glue plate for elastically separating the upper cover plate and the lower cover plate, and an elastic sealing rubber ring for laterally enclosing and sealing the upper cover plate and the lower cover plate; the bevel edge forming teeth are positioned in the inclined holes in the lower cover plate, the bevel edge forming teeth are separated from the lower cover plate through PU elastic glue or spring elasticity between the bevel edge forming teeth and the lower cover plate to be opened, the limiting guide rod is movably connected with the upper cover plate and the lower cover plate, the upper cover plate and the lower cover plate can move oppositely to be closed, the bevel edge forming teeth are pushed by the upper cover plate to extend out along the inclined holes of the lower cover plate during closing, the PU elastic glue plate is positioned between the upper cover plate and the lower cover plate, and the elastic sealing rubber ring is positioned on the periphery.

2. The tile mold according to claim 1, wherein the bevel edge forming teeth have a parallelogram structure in vertical section, a limit cap with one side perpendicular to the blunt edge is enlarged at the upper part close to the blunt edge at the upper cover plate side, one to two sealing rubber rings are arranged at the lower part close to the lower cover plate, the upper end of the bevel edge forming tooth is parallel to the upper cover plate, and the lower opening of the bevel edge forming tooth is contacted with a notch at the front of the tile blank and covered with vulcanized rubber; the limit cap of the bevel edge forming tooth is propped against the PU elastic glue or the spring and then movably arranged in the inclined hole of the lower cover plate.

3. The tile mould of claim 1, wherein the vertical section of the inclined hole is in a parallelogram structure, the inclined hole is corresponding to the position of the limit cap of the bevel edge forming tooth, a step notch with one side perpendicular to the inclined hole side is enlarged, and the step notch is used for bearing PU elastic glue or a spring.

4. A ceramic tile mould as claimed in claim 1, wherein the PU elastic rubber plate is located between the upper cover plate and the lower cover plate, a groove hole is formed at the position of the upper cover plate or the lower cover plate where the PU elastic rubber plate is installed, and the depth of the groove hole is smaller than the thickness of the PU elastic rubber plate to reduce the moving stroke of the upper cover plate and the lower cover plate.

5. An expanded ceramic tile mold support is characterized by comprising a lower cover plate with a reserved assembly hole, an upper cover plate with a limiting and sleeve structure hole, a limiting guide rod movably connecting the upper cover plate and the lower cover plate, and a PU elastic rubber plate for elastically separating the upper cover plate and the lower cover plate; the limiting guide rod is movably connected with the upper cover plate and the lower cover plate, the upper cover plate and the lower cover plate can move oppositely to be folded, the PU elastic rubber plate is positioned between the upper cover plate and the lower cover plate, the lower opening of the reserved assembly hole of the lower cover plate is flatly and fixedly connected with the lower cover plate of the ceramic tile mold to be assembled, the upper cover plate is fixedly connected with the upper cover plate of the ceramic tile mold to be assembled, and the moving stroke of the upper cover plate and the lower cover plate is equal to the moving stroke of the ceramic tile mold to; the expanding tile mould holder can be equipped with a tile mould according to any one of claims 1-4 and a tile mould with a similar functional structure.

6. The expanding ceramic tile mould support according to claim 5, wherein the lower cover plate comprises a reserved assembly hole, the periphery of the hole is provided with a step folding edge with a larger upper part and a smaller lower part, the step folding edge corresponds to the step folding edge with the larger upper part and the smaller lower part of the lower cover plate of the ceramic tile mould to be assembled, and a joint after the ceramic tile mould is assembled is used as an exhaust joint when a ceramic tile blank is pressed.

7. A tile, characterized in that, it is pressed by a tile mould or the combination of tile mould and expanded tile mould support of any claim 1-6, the back striation of said tile is visualized, the back striation pressed by each tooth of the bevel edge forming tooth has one side of reverse acute angle twill, the reverse acute angle twill is arranged alternatively and oppositely.

8. The tile as claimed in claim 7, wherein the back grain of the tile in the position of the lower cover plate of the expanded mold base where the assembly hole is reserved is the pressed grain of the assembled tile mold.