CN113681689A - Ceramic tile upper mold core with double dovetail grooves and manufactured ceramic tile - Google Patents

Abstract

The utility model provides a mould core and make ceramic tile on bilateral dovetail ceramic tile, is including last mould core base member 50 and last mould core surface rubber 60 that is provided with arch 501 and recess 502 to form with protruding 10 and the depressed grain 20 that correspond with arch 501 and recess 502, the mutual interval arrangement of protruding 10 and depressed grain 20 arranges in the whole surface of last mould core base member 50, the protruding ridge top 101 width of protruding 10 is greater than protruding ridge bottom 102 width, depressed grain top 201 opening width of depressed grain 20 is less than depressed grain bottom 202 width, and protruding ridge top 101 is equipped with depressed part 110, and the both ends of this depressed part 110 are connected through two hypotenuses (103, 104) of two back-off limits (111, 112) with protruding 10 and are formed the acute angle. The invention has the beneficial effects that: because the double-side dovetail groove die is adopted for pressing, the complete demoulding of the pressed ceramic tile after the brick is discharged from the press is realized by adjusting the parameters of the press and the parts of the press, the pressed ceramic tile green body has double-side dovetail groove back lines, and the ceramic tile green body is formed in one step without the subsequent processing of a numerical control engraving machine.

Description

Ceramic tile upper mold core with double dovetail grooves and manufactured ceramic tile

Technical Field

The invention relates to the field of production and manufacturing of ceramic tiles, in particular to an upper ceramic tile mold core with a double-sided dovetail groove and a manufactured ceramic tile.

Background

In the existing ceramic tile production process, a ceramic tile blank is formed by firstly pressing powder through ultrahigh pressure of a press and then closing a die through the die. In order to increase the bonding surface of the green brick and the wall body, various back textures are arranged on the back surface of the ceramic tile, such as: the multiple grains such as long stripes, flat grains, square grains, fan-shaped grains, messy grains and the like are characterized in that the positive demoulding is carried out, namely, the ribs on the back surface of the green brick are small at the upper opening and large at the lower opening, the pattern of the back grains determines that the green brick is easy to fall off when being combined with a wall body, in order to reduce the falling risk, the depth of the back grains can only be deepened to reduce the falling rate, but the consequent consequence is that the back grains are deepened too deeply to cause the bottom penetration of the tile, and in the pressing process of a pressing machine, because the depth of the back grains is deepened, the difference between the upper part and the lower part of a mould is too large, the stress is not uniform at each point of the green brick formed by pressing the pressing machine, so that the quality density of each part of the green brick is different, the shrinkage rate of the difference between the quality densities of the green brick is different in the sintering process of the green brick, the flatness of the ceramic tile is insufficient, the defective product is sintered and the defective product rate of the green brick is increased along with the increase of the back grains of the tile, the depth of the back grain of the tile is therefore limited and in practice is usually controlled to within 2 mm.

The back of a decorative ceramic tile commonly used in the field of buildings at present is a designed rough plane or a ceramic tile with various patterns of back gluten with small upper opening and large lower opening.

Later, a ceramic tile with a pattern of a single-sided dovetail groove in four corner areas of the back surface is appeared, although the adhesive force between the ceramic tile and an adhesive is increased, the single-sided dovetail groove only has the dovetail groove in one side of the pattern far away from the center of the ceramic tile, and the pattern with the dovetail groove is only distributed in the four corner areas far away from the center of the ceramic tile, so that the ceramic tile only has the effect of preventing the ceramic tile from falling off from the single surface, the adhesive force is not firm enough, and the problem of falling off of the ceramic tile is not fundamentally solved. Moreover, the prior dovetail groove back-grain tile technology also has the following disadvantages: 1. mass production cannot be carried out: the efficiency is low, and the engraving speed of the back grain of the ceramic tile green body is low because the ceramic tile green body is processed by a numerical control engraving machine. 2. The quality is unstable: because of the presswork adobe carries out numerical control in the motion process through the belt roller stick, the adobe can shake in the motion process, it is inhomogeneous to move, and numerical control carving tool can produce vibrations at high-speed operation in-process, the unburned bricks easily produces the damage under the effort of belt roller stick and numerical control cutter, cause the adobe fracture even, various problems such as crackle can appear in firing in-process in the unburned bricks after the damage, make the unburned bricks can not form effectual dovetail structure and can not reach the anticreep effect after firing. 3. Cost waste: the special die assembly processing is needed when the unilateral dovetail groove is produced, the cost is high, the pressing blank is processed by the numerical control engraving machine, numerical control tools are wasted, and manual work is wasted. 4. After the green body is pressed, a numerical control engraving machine is additionally arranged, so that the cost is increased, a plurality of devices such as dust removal and the like are additionally arranged, and the dust is very large during numerical control engraving. 5. The efficiency is low: the brick discharging speed cannot be too fast, otherwise, the numerical control engraving machine cannot finish engraving, and the time is consumed.

In order to solve the problems, the inventor researches and researches deeply and repeatedly, and develops an upper ceramic tile mold in a double-side dovetail groove back pattern form and a manufactured ceramic tile by skillfully utilizing the stress concentration phenomenon of rubber on the surface of an upper mold core in the process of pressing a ceramic tile green brick.

The technical scheme provided by the invention can comprehensively solve the problem of falling prevention of the ceramic tile, and also has the following beneficial technical effects: 1. the mass production is realized: because the double-side dovetail groove die is adopted for pressing, the complete demoulding of the pressed ceramic tile after the brick is discharged from the press is realized by adjusting the parameters of the press and the parts of the press, the pressed ceramic tile green body has double-side dovetail groove back lines, and the ceramic tile green body is formed in one step without the subsequent processing of a numerical control engraving machine. 2. The quality is stable: the pressed green bricks do not need numerical control processing programs, so that the problem that the green bricks are damaged by numerical control processing vibration does not exist. 3. The cost is saved: the special die assembly processing is not needed when the bilateral dovetail groove is produced, the cost is low, the green body is not needed to be processed by a numerical control engraving machine after being pressed, the input cost of series equipment of the numerical control engraving machine is saved, and the consumption cost and the labor cost of a numerical control cutter are also saved. 4. The production efficiency is high: the brick discharging speed is high, and multi-cavity brick discharging can be realized, while multi-cavity brick discharging cannot be realized in the prior art which needs to be subjected to subsequent processing by a numerical control engraving machine.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the upper ceramic tile mold core with the double-sided dovetail groove and the manufactured ceramic tile, the manufactured ceramic tile can be firmly adhered to a building surface, when the manufactured ceramic tile is used for building decoration, the back surface is used for being adhered to the building surface, and the back surface is provided with a plurality of grooves with different lengths. The width of the concave bottom of the groove is larger than that of the notch, and the bottom of the groove is provided with an inclined plane in an eight-symbol mode. The adhesive enters the groove to form an adhesive hooking part with a large inside and a small outside, and the hooking effect of the adhesive hooking part can greatly enhance the adhesive force between the adhesive and the ceramic tile, so that the ceramic tile is not easy to fall off.

In order to achieve the purpose, the technical scheme provided by the invention is as follows.

The utility model provides a mould core on bilateral dovetail ceramic tile, is including last mould core base 50 and last mould core surface rubber 60 that is provided with arch 501 and recess 502, go up mould core surface rubber 60 integrated into one piece and paste and cover on last mould core base 50, thereby form with protruding 10 and the concave line 20 that correspond with arch 501 and recess 502, the mutual interval arrangement of protruding 10 and concave line 20 is arranged in the whole working face surface of last mould core base 50, the protruding top 101 width of protruding 10 is greater than protruding bottom 102 width, the concave line top 201 opening width of concave line 20 is less than concave line bottom 202 width, and two hypotenuses 103,104 of protruding 10 and the plane of adjacent concave line bottom 202 place form angle alpha, protruding line top 101 is equipped with depressed part 110, and the both ends of this depressed part 110 are connected through two hypotenuses 103,104 of two back-off limit 111,112 and protruding 10 and are formed angle beta, angle alpha, Beta are all acute angles and alpha > beta, the depressions 110 extending along the entire length of the ribs 10.

Optionally, as for the double-sided dovetail groove tile upper mold core, the top 101 of the ridge is provided with two or more than two concave parts 110, a protruding ridge 113 is arranged between two adjacent concave parts 110, and the top end of the ridge 113 is at the same level with the top end of the ridge 10.

Alternatively, a mold core for a double-sided dovetail groove tile as described above, wherein the width of the ridge bottom 102 is a and the width of the ridge top 101 is b, wherein the values of a and b satisfy the following relationship: 3 mm < a < 8 mm, and 1 mm < b-a < 6 mm.

Optionally, in the above mold core for a double-sided dovetail groove tile, the width of the recess 110 is e, and the value of e satisfies the following relationship: 0.3 mm ≦ e <3 mm.

Alternatively, the above-mentioned mold core for double-sided dovetail groove tile has a height difference c between the top of the relief 10 and the bottom of the recess 110, and the value of c satisfies the following relationship: 0.1 mm < c < 0.8 mm.

Optionally, in the above-mentioned mold core for a double-sided dovetail groove tile, the height difference between the top of the convex pattern 10 and the bottom 202 of the concave pattern is h, and the value of h satisfies the following relationship: 0.5 mm < h < 2 mm.

Optionally, in the above-described mold core for a double-sided dovetail groove tile, the value of the angle β satisfies the following relationship: 5 DEG-beta-89 deg.

Optionally, in the above-described mold core for a double-sided dovetail groove tile, the width of the bottom 202 of the concave groove is f, and the value of f satisfies the following relationship: 3 mm < f < 8 mm.

The double-side dovetail groove back grain ceramic tile is formed by pressing the die core on the double-side dovetail groove ceramic tile, double-side dovetail groove concave grains 1001 are distributed in the whole back area of the ceramic tile, two sharp-angle edges with the angle beta are formed on two sides of the bottom of each double-side dovetail groove concave grain 1001, and a protruding portion 1101 is arranged at the bottom of each double-side dovetail groove concave grain 1001.

Compared with the prior art, the ceramic tile upper mold core with the bilateral dovetail grooves and the manufactured ceramic tile have the following beneficial effects: the upper die core is simple and firm in structure, the convex ridges of the double-sided dovetail grooves are distributed on the whole working surface of the die, the convex ridges are integrally formed and covered on an iron base body of the upper die core to be vulcanized and formed, and the ceramic tiles with the double-sided dovetail grooves are manufactured without adopting a special die; compared with the prior art, the double-groove double-side dovetail groove has the advantages that the carving technology is changed on the die female die, the conventional processing is broken through, the dovetail die female die is carved by the numerical control carving machine, and the break-through of the demolding technology is realized. The produced ceramic tile has deep back grain lines and flat surface, the back grain lines form a double-sided dovetail groove with excellent structural force, and the back grain can be various lines such as long lines, square grains, flat grains, fan-shaped grains, disordered grains and the like; after the ceramic tile is pasted, a rigid mortise and tenon structure with two sides is formed with the bonding layer, so that the ceramic tile is prevented from falling off comprehensively.

The invention provides an upper ceramic tile mold core with a bilateral dovetail groove and a manufactured ceramic tile, which have the following outstanding technical progress and beneficial technical effects: 1. the mass production is realized: because the double-side dovetail groove die is adopted for pressing, the complete demoulding of the pressed ceramic tile after the brick is discharged from the press is realized by adjusting the parameters of the press and the parts of the press, the pressed ceramic tile green body has double-side dovetail groove back lines, and the ceramic tile green body is formed in one step without the subsequent processing of a numerical control engraving machine. 2. The quality is stable: the pressed green bricks do not need numerical control processing programs, so that the problem that the green bricks are damaged by numerical control processing vibration does not exist. 3. The cost is saved: the special die assembly processing is not needed when the bilateral dovetail groove is produced, the cost is low, the green body is not needed to be processed by a numerical control engraving machine after being pressed, the input cost of series equipment of the numerical control engraving machine is saved, and the consumption cost and the labor cost of a numerical control cutter are also saved. 4. The production efficiency is high: the brick discharging speed is high, and multi-cavity brick discharging can be realized, while multi-cavity brick discharging cannot be realized in the prior art which needs to be subjected to subsequent processing by a numerical control engraving machine.

Drawings

FIG. 1 is a schematic sectional view of an upper mold core of a double-sided dovetail groove ceramic tile provided by the invention.

FIG. 2 is a schematic cross-sectional view of a ceramic tile manufactured by using the mold core on a ceramic tile with a double-sided dovetail groove provided by the invention.

FIG. 3 is a schematic view of the forming state of the upper mold core and the ceramic tile with the double-sided dovetail groove provided by the invention.

FIG. 4 is one of the schematic plan views of the ceramic tile manufactured by the mold core on the double-sided dovetail groove ceramic tile provided by the invention.

FIG. 5 is a second schematic plan view of a ceramic tile manufactured by the mold core on a double-sided dovetail groove ceramic tile provided by the present invention.

FIG. 6 is a third schematic plan view of a tile manufactured by the upper die core of the double-sided dovetail groove tile provided by the invention.

Wherein: 10-rib, 101-rib top, 102-rib bottom, 103, 104-hypotenuse, 110-valley, 111, 112-undercut, 113-ridge, 1001-bilateral dovetail valley, 1101-bulge, 20-valley, 201-valley top, 202-valley bottom, 50-upper core base, 501-bulge, 502-groove, 60-upper core surface rubber.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

The structures, ratios, sizes, and the like of the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the efficacy and the achievable purpose of the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

The following examples are for illustrative purposes only. The various embodiments may be combined, and are not limited to what is presented in the following single embodiment.

Referring to fig. 1 to 3, a double-sided dovetail groove tile upper core comprises an upper core base 50 provided with a protrusion 501 and a groove 502, and an upper core surface rubber 60, wherein the upper core surface rubber 60 is integrally attached to the upper core base 50 to form a ridge 10 and a valley 20 corresponding to the protrusion 501 and the groove 502, the ridge 10 and the valley 20 are arranged at intervals on the whole surface of the upper core base 50 for pressing the tile working surface, the width of the ridge top 101 of the ridge 10 is larger than that of the ridge bottom 102, the width of the opening of the valley top 201 of the valley 20 is smaller than that of the valley bottom 202, two inclined sides 103,104 of the ridge 10 form an angle with the plane of the adjacent valley bottom 202, and the angle is alpha for convenience of description, the ridge top 101 is provided with a recess 110, and two ends of the recess 110 are connected through two inverted buckle edges 111,112 form a further angle with the two sloping sides 103,104 of the rib 10, which is assumed, for the sake of descriptive convenience, to be exemplary β; both angles α, β are acute angles less than 90 degrees and α > β, it being understood, of course, that the depressions 110 extend along the entire length of the ribs 10 distributed on the upper core. The upper core surface rubber 60 is, for example, vulcanized rubber having a thickness of 3 mm and a hardness of 93 degrees. For example, all of the valley bottoms 202 may be at the same level and all of the ridge tops 101 may be at a different, different level.

Alternatively, as described above, the number of the concave portions 110 provided on the top portion 101 of the ridge may be two or more, and in this case, a protruding ridge 113 is provided between two adjacent concave portions 110, and the top end of the ridge 113 is at the same level as the top end of the ridge 10. It will be understood that said ridges 113 may extend along the entire length of the ridge 10 distributed on the upper core, or may be interrupted.

Preferably, a mold core for a double-sided dovetail groove tile as described above, for illustrative convenience, the width of the ridge bottom 102 is a, and the width of the ridge top 101 is b, wherein the values of a and b satisfy the following relationship: 3 mm < a < 8 mm, and 1 mm < b-a < 6 mm.

Preferably, for convenience of description, the width of the recess 110 is e, and the value of e satisfies the following relationship: 0.3 mm ≦ e <3 mm.

Preferably, for convenience of description, the difference in height between the top ends of the ridges 10 and the recesses 110 is c, and the value of c satisfies the following relationship: 0.1 mm < c < 0.8 mm.

Preferably, for convenience of description, the height difference between the top of the convex ridge 10 and the bottom 202 of the concave ridge is h, and the value of h satisfies the following relationship: 0.5 mm < h < 2 mm.

Preferably, the value of the angle β satisfies the following relationship: 5 DEG-beta-89 deg.

Preferably, for convenience of description, the width of the bottom 202 of the concave groove is f, and the value of f satisfies the following relationship: 3 mm < f < 8 mm.

Referring to fig. 2 to 6, the double-sided dovetail groove back grain tile is formed by pressing the mold core on the double-sided dovetail groove tile, double-sided dovetail groove concave grains 1001 are distributed in the whole area of the tile, two sharp-angle edges with an angle beta are formed on two sides of the bottom of each double-sided dovetail groove concave grain 1001, and a convex portion 1101 is formed at the bottom of each double-sided dovetail groove concave grain 1001.

According to the tile provided by the invention, in the paving and pasting process, cement slurry in the double-dovetail groove concave line 1001 structure on the back surface of the tile enters the double-dovetail groove concave line 1001 through the opening of the double-dovetail groove concave line 1001 in the cement grouting process, and when the cement slurry enters the double-dovetail groove concave line 1001 and then flows into the protruding part 1001, the protruding part 1001 is higher than the bottom of the double-dovetail groove concave line 1001, so that the cement slurry can more effectively and completely enter two corners at the bottom of the double-dovetail groove concave line 1001 to be filled to achieve seamless combination of the cement slurry and the tile, and the double-dovetail groove structure of the double-dovetail groove concave line 1001 can be more effectively utilized to achieve the anti-falling effect.

The height difference c between the protrusion 1001 and the bottom of the double-dovetail groove dimple 1001 determines the depth of the reverse buckle of the double-dovetail groove dimple 1001 and the inclination from the protrusion 1001 to the bottom of the double-dovetail groove dimple 1001, namely the angle beta, so that the filling speed of cement paste is determined, and the anti-falling effect of the tile and the demolding effect of the upper mold core during the tile molding are determined by matching the opening width of the double-dovetail groove dimple 1001, namely the value a.

By implementing the technical scheme provided by the invention, when a ceramic tile blank is pressed and molded, the ceramic tile blank is pressed and molded by the integral simultaneous stress action of the upper mold core and the lower mold core in the mold cavity, the ceramic tile blank has the internal stress with the same reaction force when being pressurized, the upper punch magnetic plate is electrified, the upper mold core is attached to the upper magnetic plate, the lower mold core is attached to the assembly magnetic plate, the ceramic tile powder forms a ceramic tile blank in the mold cavity under the high-pressure of 29000KN formed by pressurization when the upper punch descends, and an eight-shaped double-sided dovetail groove with a small upper opening and a large lower opening is formed in the back pattern groove after the ceramic tile blank is formed. Because the bottom of the double-sided dovetail groove concave line 1001 on the back of the green brick is provided with the convex part 1101 structure, the effect that pressure is concentrated to two sides of the convex part 1101 can be generated in the high-pressure pressing process, under the action of the high-pressure, the rubber 60 on the surface of the upper die core can generate deformation diffused from the convex part 1101 to two corners at the bottom of the double-sided dovetail groove concave line 1001, the rubber layers at the two corners are thickened, the rubber deformation can be shrunk back to the state before the deformation is generated after the upper die core loses pressure, the double-sided dovetail groove concave line 1001 on the green body is not matched with the upper die core convex line 10, and the whole set of demoulding action is completed by sliding upwards from inside to outside along the demoulding gradient position of the upper die core convex line 10.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The details of the upper ceramic tile mold core with the double-sided dovetail groove and the manufactured ceramic tile provided by the invention are described above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a mould core on bilateral dovetail ceramic tile, is including last mould core base member (50) and last mould core surface rubber (60) that are provided with arch (501) and recess (502), it covers on last mould core base member (50) to go up mould core surface rubber (60) integrated into one piece, thereby form with protruding (501) and recess (502) corresponding burr (10) and dimpled grain (20), its characterized in that, the arrangement that each other interval of burr (10) and dimpled grain (20) is in the whole working face surface of last mould core base member (50), the burr top (101) width of burr (10) is greater than burr bottom (102) width, the dimpled grain top (201) opening width of dimpled grain (20) is less than dimpled grain bottom (202) width, and two hypotenuses (103, 104) and the adjacent dimpled grain bottom (202) of burr (10) are in the plane shape and are angled alpha, burr top (101) are equipped with depressed part (110), the recess (110) is connected at both ends to the two sloping sides (103, 104) of the relief (10) by two undercut edges (111, 112) forming an angle β, both angles α, β being acute and α > β, the recess (110) extending along the entire length of the relief (10).

2. The upper mold core for double-sided dovetail groove ceramic tiles as claimed in claim 1, wherein the top of said ridge (101) is provided with two or more recesses (110), a protruding ridge (113) is provided between two adjacent recesses (110), and the top of said ridge (113) is at the same level as the top of said ridge (10).

3. The double-sided dovetail groove tile upper core according to claim 1, wherein the width of the ridge bottom (102) is a, and the width of the ridge top (101) is b, wherein the values of a and b satisfy the following relationship: 3 mm < a < 8 mm, and 1 mm < b-a < 6 mm.

4. The double-sided dovetail groove tile upper core according to claim 2, wherein the width of the ridge bottom (102) is a, and the width of the ridge top (101) is b, wherein the values of a and b satisfy the following relationship: 3 mm < a < 8 mm, and 1 mm < b-a < 6 mm.

5. The upper mold core for double-sided dovetail groove ceramic tiles according to claim 1, wherein the width of the recess (110) is e, and the value of e satisfies the following relationship: 0.3 mm ≦ e <3 mm.

6. The upper mold core for double-sided dovetail groove tiles according to claim 1, wherein the difference in height between the recessed portion (110) and the tip of the relief (10) is c, and the value of c satisfies the following relationship: 0.1 mm < c < 0.8 mm.

7. The upper mold core for double-sided dovetail groove ceramic tiles according to claim 1, wherein the height difference between the top of the convex ridge (10) and the bottom (202) of the concave groove is h, and the value of h satisfies the following relation: 0.5 mm < h < 2 mm.

8. The upper mold core for a double-sided dovetail groove tile according to any one of claims 1 to 7, wherein the value of said angle β satisfies the following relationship: 5 DEG-beta-89 deg.

9. The double-sided dovetail groove tile upper core according to any of claims 1 to 7, wherein the width f of the bottom portion (202) of the indentation satisfies the following relationship: 3 mm < f < 8 mm.

10. The double-sided dovetail groove back grain tile is characterized in that the double-sided dovetail groove back grain tile is formed by pressing the die core on the double-sided dovetail groove tile according to any one of claims 1 to 9, double-sided dovetail groove concave grains (1001) are distributed on the whole back area of the tile, two sharp-angle edges with the angle beta are formed on two sides of the bottom of each double-sided dovetail groove concave grain (1001), and a bulge (1101) is formed at the bottom of each double-sided dovetail groove concave grain (1001).

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