CN213859881U

CN213859881U - Ceramic tile back mold core with four corners and single edge dovetail groove and manufactured ceramic tile

Info

Publication number: CN213859881U
Application number: CN202022728913.9U
Authority: CN
Inventors: 陈锐
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-03
Anticipated expiration: 2030-11-23

Abstract

A four-corner single-side dovetail groove ceramic tile back mold core and a manufactured ceramic tile are disclosed, wherein vulcanized rubber on the surface of the back mold core comprises convex grains and concave grains which are integrally formed and adhered to a back mold core iron base body, the single-side dovetail groove convex grains of the ceramic tile back mold core are positioned at four corners of the ceramic tile back mold core, the single-side dovetail groove convex grains are grid grains or stripes, one side of the single-side dovetail groove convex grain, which is close to the center of the back mold core, forms an obtuse angle with the plane of the back mold core, and one side of the single-side dovetail groove convex grain, which is far away from the center of the back mold core, forms an acute angle with the plane of the back mold core; in the ceramic tile blank pressing process, the convex patterns are far away from the acute angle of the central side to form a single-side dovetail groove for the ceramic tile back patterns, in the ceramic tile blank demoulding link, the single-side dovetail groove formed by the ceramic tile blank transversely moves away from the acute angle of the convex patterns by utilizing the outward deformation motion when the ceramic tile blank releases self-stress, so that demoulding is smooth; the utility model provides a four corners unilateral dovetail back striation ceramic tile, the region of ceramic tile's four corners is the unilateral dovetail concave striation of check line or stripe, and every check line or every stripe have the line side that is less than 1/2 line girth's acute angle of falling.

Description

Ceramic tile back mold core with four corners and single edge dovetail groove and manufactured ceramic tile

Technical Field

The utility model relates to a ceramic manufacture field, more specifically say, in particular to unilateral dovetail ceramic tile back of body mold core in four corners and make the ceramic tile.

Background

The existing ceramic tile production process has the characteristic that a ceramic tile blank is formed by powder through ultrahigh pressure pressing, the ceramic tile blank is formed by closing an upper die and a lower die which are fixed through mechanical equipment, back grains with various patterns are distributed on the back surface of a ceramic tile for increasing the bonding area, most of the back dies in the existing ceramic tile back die core process, particularly dies with the size of more than 300 x 300mm, are square grains, arc broom grains, random grains, salient points and the like, and all the existing back die cores have the common characteristic that the connecting edges between the convex grains and the concave grains have positive demoulding slopes, namely the upper opening of the convex grains is smaller than the lower opening, and the central lines of the upper opening and the lower opening are superposed, so that an effective dovetail groove cannot be formed due to the structural structure.

In the ceramic tile blank pressing process, the thickness of the pressed blank is generally 35% -40% of the thickness of the arranged powder, the density of the ceramic tile blank at the corresponding position is different due to the height difference between the convex patterns and the concave patterns on the back pattern of the ceramic tile back mold core, and the shrinkage rate of the ceramic tile blank with the density difference in sintering is different, so that the flatness of the surface of the ceramic tile is not enough, and the sintering bottom-penetrating defective product is generated, so that the ceramic tile has to reduce the depth of the back pattern and the bonding strength.

In the process of pressing the ceramic tile blank, when the ceramic tile blank is pressed and formed, the ceramic tile blank is pressed and formed by the joint stress action of the upper die and the lower die on six surfaces in the die cavity, the ceramic tile blank has the internal stress with the same reaction force in the final pressing process, in the ceramic tile blank demoulding link, especially for demoulding of ceramic tiles with the size of more than 300 x 300mm, the upper die and the lower die clamp the formed ceramic tile blank to float out of the lower die cavity, at the moment, the pressure on four sides of the ceramic tile blank is released firstly, the ceramic tile blank releases internal stress towards the volume expansion of the four sides, along with the further upward lifting of the upper die, the whole ceramic tile blank expands uniformly to release the internal stress, the side length of the expanded ceramic tile blank increases by about 0.5% -1.5%, the expanded ceramic tile blank is not matched with the back pattern of the ceramic tile back die core any more, and the ceramic tile blank slides upwards from the inside to the outside along the demoulding slope position of the back pattern of the back die core during expansion deformation.

Disclosure of Invention

The utility model aims to solve the problems that in the production link of the ceramic tile blank, the phenomenon of ceramic tile sintering bottom penetration is prevented, the pressed ceramic tile back texture is deep enough and has a dovetail groove structure, the self expansion deformation during demoulding of the ceramic tile is fully utilized, and a four-corner unilateral dovetail groove ceramic tile back mold core is provided; and utilize the utility model discloses a unilateral dovetail ceramic tile back of body mould core in four corners makes the unilateral dovetail back of body line ceramic tile in four corners.

In order to achieve the above object, the utility model provides a following technical scheme: a four-corner unilateral dovetail groove ceramic tile back mold core comprises a back mold core iron base body and back mold core surface vulcanized rubber, wherein the back mold core surface vulcanized rubber comprises convex grains and concave grains which are integrally formed and adhered to the back mold core iron base body;

when the single-side dovetail groove convex patterns are the grid patterns, the single-side dovetail groove convex patterns are second-stage step convex patterns, a first-stage plane step with the height of 0.5 mm-1.0 mm is lifted by taking the back mold core concave patterns as a reference, the second-stage step is lifted by 0.3 mm-3 mm from the first-stage plane step, the width of the top plane of the step is smaller than 1mm, and a kicking surface of the formed step forms an obtuse angle of 110-150 degrees with the back mold core plane on one side close to the center of the back mold core; one side of the convex pattern of the unilateral dovetail groove far away from the center of the back mold core forms an acute angle of 55-89 degrees with the plane of the back mold core from the top of the second-stage step to the concave pattern surface;

the unilateral dovetail groove convex pattern is a first-level step convex pattern when being a stripe, one side close to the center of the back die core forms a slope or an arc slope from a concave stripe surface at 110 degrees to 150 degrees, the height of the step is 1mm to 5mm, the width of the top plane of the step is smaller than 1mm, and one side of the unilateral dovetail groove convex pattern far away from the center of the back die core forms an acute angle of 55 degrees to 89 degrees from the top of the step to the concave stripe surface.

The utility model provides a unilateral dovetail ceramic tile back of body mold core in four corners, wherein, the unilateral dovetail burr of ceramic tile back of body mold core is located the four corners region beyond the central radius 100mm of back of body mold core and the central vertical line 5mm width of four sides, and other lines except unilateral dovetail burr are for forming 110 degrees ~150 degrees obtuse angles and the height is the check or the stripe of 0.5mm ~1.2mm with back of body mold core plane all around.

A four-corner single-edge dovetail groove ceramic tile back mold core is disclosed, wherein an equal static pressure layer can be arranged between a back mold core iron matrix and vulcanized rubber on the surface of a back mold core; an exhaust system can be arranged between the back mold core iron matrix and the vulcanized rubber on the surface of the back mold core, an exhaust port is positioned at the obtuse angle slope of the convex grains of the single-side dovetail groove or the plane of the first-level step of the check grains, and an exhaust pipe is positioned in the back mold core iron matrix.

The utility model provides an unilateral dovetail back of body line ceramic tile in four corners, uses the utility model discloses can obtain during the production of the unilateral dovetail ceramic tile back of body mould core in four corners of technique, wherein, the four corners region of ceramic tile is the unilateral dovetail dimpling of check or stripe, and every check or every stripe have the line side that is less than 1/2 line girth, and the line side and the ceramic tile back of body plane shape of this angle of falling are angled to be 55~89 degrees, and the line side and the ceramic tile back of body plane shape of removing the remaining part of the angle of falling are angled to be 110~150 degrees.

To the utility model discloses an unilateral dovetail ceramic tile back of body mold core in four corners and make the ceramic tile summarization, a unilateral dovetail ceramic tile back of body mold core in four corners, back of body mold core surface vulcanized rubber include burr and concave line integrated into one piece paste cover on back of body mold core iron base member, the unilateral dovetail burr of ceramic tile back of body mold core is located four angles of ceramic tile back of body mold core, the unilateral dovetail burr is check line or stripe, one side that unilateral dovetail burr is close to back of body mold core center forms obtuse angle with back of body mold core plane and far away from one side of back of body mold core center and back of body mold core plane form acute angle; in the ceramic tile blank pressing process, the convex patterns are far away from the acute angle of the central side to form a single-side dovetail groove for the ceramic tile back patterns, in the ceramic tile blank demoulding link, the single-side dovetail groove formed by the ceramic tile blank transversely moves away from the acute angle of the convex patterns by utilizing the outward deformation motion when the ceramic tile blank releases self-stress, so that demoulding is smooth; the utility model provides a four corners unilateral dovetail back striation ceramic tile, the region of ceramic tile's four corners is the unilateral dovetail concave striation of check line or stripe, and every check line or every stripe have the line side that is less than 1/2 line girth's acute angle of falling.

Compared with the prior art, implement the utility model discloses a unilateral dovetail ceramic tile back of body mold core in four corners and make the ceramic tile has following beneficial effect: the structure is simple and firm, and the four-corner single-edge dovetail groove convex patterns are integrally formed and covered on the back die core iron base body for vulcanization forming to obtain the product; the addition of an isostatic pressing system and an exhaust system is further optimized; the back grain of the produced ceramic tile is deep in lines and smooth in surface, the back grain of the formed single-side dovetail groove is centrosymmetric or axisymmetric, and the symmetric lines form a double-side dovetail groove with excellent structural force; after the ceramic tile is pasted, a rigid mortise and tenon structure is formed with the bonding layer, the ceramic tile is prevented from falling off, and the safety performance of the ceramic tile is greatly improved.

Drawings

FIG. 1 is a plan view of the single-side dovetail groove check back mold core of the present invention.

Fig. 2 is a plan view of the single-side dovetail groove stripe back mold core of the present invention.

Fig. 3 is a local big sample drawing a of the lattice back mold core of the present invention.

Fig. 4 is a cross-sectional view of the local thumbnail view a of the present invention.

Fig. 5 is a big sample pattern B of the stripe back mold core of the present invention.

Fig. 6 is a D-D sectional view of a partial thumbnail B of the present invention.

Fig. 7 is a plan view of another single-side dovetail groove stripe mold core of the present invention.

Wherein: 1. a second stage step of the unilateral dovetail groove check; 101. a single-side dovetail groove check line chamfer angle edge; 102. the obtuse-angle bevel edge of the second-stage step of the unilateral dovetail groove check; 2. a first stage step of a unilateral dovetail groove check; 201. the single-side dovetail groove check grain first-stage step obtuse-angle bevel edge; 3. traditional raised lattice lines of the back mold core; 4. back mold core dimpling; 5. Cutting edges of the back mold core iron matrix; 6. The central vertical lines of the four sides of the back mold core; 7. a single-side dovetail groove stripe; 701. a single-side dovetail groove stripe chamfer angle edge; 702. a single-side dovetail groove stripe obtuse-angle bevel edge; 8. traditional convex stripes of the back mold core; 9. And backing the mold core iron matrix.

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 fig. 1-7, a unilateral dovetail ceramic tile back of body mold core in four corners, including back mold core iron base member 9 and back mold core surface vulcanized rubber, back mold core surface vulcanized rubber includes burr and concave line integrated into one piece paste and covers on back mold core iron base member, wherein, the unilateral dovetail burr of ceramic tile back of body mold core is located four angles of ceramic tile back of body mold core, unilateral dovetail burr is check line or stripe, one side that unilateral dovetail burr is close to back mold core center forms the obtuse angle with back mold core plane and far away one side at back mold core center and back mold core plane form the acute angle.

The big aspect of unilateral dovetail burr has two kinds of modes: one of the lattices or stripes is a second-stage step convex stripe when the single-side dovetail groove convex stripe is a lattice, a first-stage plane step with the height of 0.5 mm-1.0 mm is lifted by taking the back die core concave stripe as a reference, the step is a first-stage step 2 with the single-side dovetail groove convex stripe, the second-stage step is a second-stage step 1 with the single-side dovetail groove convex stripe, the height of the second-stage step is 0.3 mm-3 mm from the first-stage step 2 with the top plane width of the step smaller than 1mm, a kick surface of the formed step forms an obtuse angle of 110-150 degrees with the plane of the back die core at one side close to the center of the back die core, the kick surface formed by the first-stage step is a first-stage oblique edge obtuse angle 201 with the single-side dovetail groove convex stripe, and the kick surface formed by the second-stage step is an oblique edge 102 with the single-side dovetail groove convex stripe second-stage oblique edge; one side of the single-side dovetail groove convex pattern far from the center of the back mold core forms an acute angle of 55-89 degrees from the top of the second-stage step to the concave pattern surface, and the side is a single-side dovetail groove lattice pattern chamfered edge 101.

The other kind of unilateral dovetail burr, unilateral dovetail burr is the one-level step burr for the stripe when unilateral dovetail burr is the stripe, and this step burr is unilateral dovetail stripe 7, and one side near back of the body die core center forms slope or arc slope with 110 degrees ~150 degrees from the dimpled surface and lifts up the step that height is 1mm ~5mm and step top plane width is less than 1mm, this side slope or arc slope that form are unilateral dovetail stripe obtuse angle hypotenuse 702, and one side at the far back of the body die core center of unilateral dovetail burr forms 55~89 degrees acute angle from the step top to the dimpled surface shape, and this side is unilateral dovetail stripe back-sharp corner edge 701.

The utility model provides a unilateral dovetail ceramic tile back of body mold core in four corners, wherein, the unilateral dovetail burr of ceramic tile back of body mold core is located outside the central radius 100mm of back of body mold core and the four corners region of the central vertical line 5mm width of four sides, the central vertical line of four sides be back of body mold core four sides central vertical line 6, other lines except unilateral dovetail burr be all around for forming 110 degrees ~150 degrees obtuse angles and highly be 0.5mm ~1.2 mm's check or stripe with back of body mold core plane, the check be traditional protruding check 3 of back of body mold core and the stripe then is the traditional protruding stripe 8 of back of body mold core.

A four-corner single-edge dovetail groove ceramic tile back mold core is disclosed, wherein an equal static pressure layer can be arranged between a back mold core iron matrix 9 and vulcanized rubber on the surface of the back mold core; an exhaust system can be arranged between the back mold core iron matrix 9 and the vulcanized rubber on the surface of the back mold core, an exhaust port is positioned at the position of the single-side dovetail groove convex pattern obtuse angle slope or the plane of the first-level step of the check pattern, and an exhaust pipe is positioned in the back mold core iron matrix 9.

A four-corner single-side dovetail groove ceramic tile back mold core is processed and manufactured, and comprises a back mold core iron matrix 9 and back mold core surface vulcanized rubber, wherein firstly, according to the back grain and the shape of the designed four-corner single-side dovetail groove ceramic tile back mold core, the same convex grain is carved on an aluminum plate through a numerical control machine tool, the peripheral side length of the aluminum plate is 4mm larger than that of the designed back mold core, and the finished aluminum mold is called as a female mold I; preparing another iron plate or aluminum plate, wherein the side length of the periphery of the other iron plate or aluminum plate is 2mm less than that of the master model I, milling a groove with the depth of 2-6mm on the alignment panel after a cutting edge with the periphery of about 1.3mm is reserved, carrying out sand blasting treatment on the groove, coating primer, covering the master model I coated with a release agent after liquid polyurethane adhesive is poured, closing the die, heating and vulcanizing the die, and demolding the master model I to obtain a master model II; processing the front surface of a back mold core iron matrix 9 into an inner groove with a cutting edge with the thickness of 0.2 mm-0.8 mm at the periphery, wherein the cutting edge is the cutting edge 5 of the back mold core iron matrix, performing sand blasting treatment on the surface of the inner groove, coating primer, pouring liquid polyurethane adhesive, covering a female mold II coated with a release agent, closing a mold, heating and vulcanizing, and demolding the female mold II to obtain the four-corner single-edge dovetail groove tile back mold core with the design requirement.

Supplementary explanation a four corners unilateral dovetail groove ceramic tile back mold core working process and theory of operation, take the face mold core to the back beating technology of the case under, before working, the face mold core drops to the cloth height in the lower mold cavity, cloth the ceramic tile powder and strickle off, the press works and presses the four corners unilateral dovetail groove ceramic tile back mold core into the lower mold cavity, squeeze the ceramic tile powder and get the ceramic tile body after compacting, after pressing, the four corners unilateral dovetail groove ceramic tile back mold core and the face mold core clamp the ceramic tile body and rise to the upper plane of the lower mold cavity, the pressure restraint of the four sides of the ceramic tile body disappears at this moment, the outer periphery of the ceramic tile body begins to expand and deform to release the internal stress, and then with the further lifting of the four corners unilateral dovetail groove ceramic tile back mold core, the upper and lower pressure restraint disappears, the ceramic tile body further deforms and expands to release the internal stress, the detection in practice shows, the side length of the ceramic tile body after the complete expansion release pressure is about 0.8% bigger than in the lower mold cavity, most of at 0.5% ~1.5%, the different expansion rate diverse of pressure technology of different powder, the inflation of ceramic tile body is with the center of ceramic tile body as the benchmark toward expansion rate extension such as all around, and the central expansion degree of ceramic tile body is less, and the expansion degree is big more toward outer more, in ceramic tile body expansion deformation time, because the unilateral structural feature of ceramic tile back of the body mold core of four corners dovetail: the unilateral dovetail burr is close to one side at back of the body mould core center and forms the obtuse angle and one side and the back of the body mould core plane at back of the body mould core center far away with the back of the body mould core plane and form the acute angle, the obtuse angle is 110~150 degrees, owing to with this obtuse angle interact, also longitudinal motion jacking ceramic tile body breaks away from with the back of the body mould core when ceramic tile body expanding deformation in the sideslip, the opposite side burr is for forming the acute angle of the 55~89 degrees of unilateral dovetail, just leaves during the expanding motion unsettledly, effectively protected the unilateral dovetail that the ceramic tile body formed, moreover in the technology of beating conversely, because the dead weight effect of ceramic tile body makes the smooth drawing of patterns of unilateral dovetail ceramic tile back of the body in four corners and ceramic tile body.

The unilateral dovetail groove back lines are applied to four corners of the back mold core, the position with larger deformation is fully utilized, and in the check dovetail groove wales, the check comprises triangular, quadrilateral, polygonal and other sides, and also comprises round and random convex irregular wales, but the second-stage step obtuse-angle inclined edge 102 and the unilateral dovetail groove check-line reverse-acute-angle edge 101 from the unilateral dovetail groove check line are necessarily arranged at one side far away from the center of the back mold core of the ceramic tile and cannot exceed half of the wales; when the single-side dovetail groove stripes are adopted, the shapes can be straight lines, C-shaped, L-shaped, S-shaped and the like, but the chamfered edge 101 of the dovetail groove grid pattern is required to be arranged at one side far away from the center of the ceramic tile back mold core and cannot exceed half of the convex line; and at the central part of the back mold core and the central vertical line positions of the four sides, the expansion rate of the tile blank is consistent with that of the four corners, but the deformation is less, so that the traditional back mold core traditional convex grid patterns 3 or the back mold core traditional convex stripes 8 are reserved except the four corners.

Combine current ceramic tile mould back of the body mold core traditional technology, the utility model discloses an unilateral dovetail ceramic tile back of the body mold core in four corners is particularly useful for 300 x 300 and the ceramic tile of above size, exhaust system and isostatic pressing layer can also be added according to the requirement of concrete ceramic tile, change traditional ceramic tile back of the body mold core back of the body line characteristics, deformation motion when releasing the internal stress during make full use of ceramic tile body drawing of patterns, make the ceramic tile form the unilateral dovetail back of the body line in four corners, and the back of the body line of monoblock brick is centrosymmetric or axisymmetric geometric pattern again, paste the rigidity mortise and tenon structure of the rigid bilateral dovetail of bonding layer formation with the sclerosis after, great improvement the security performance is pasted to the ceramic tile, 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 four-corner unilateral dovetail groove ceramic tile back mold core comprises a back mold core iron base body and back mold core surface vulcanized rubber, wherein the back mold core surface vulcanized rubber comprises convex grains and concave grains which are integrally formed and adhered to the back mold core iron base body;

when the single-side dovetail groove convex patterns are the grid patterns, the single-side dovetail groove convex patterns are secondary step convex patterns, a primary plane step with the height of 0.5 mm-1.0 mm is lifted by taking the back mold core concave patterns as a reference, the secondary step is lifted by 0.3 mm-3 mm from the primary plane step, the width of the top plane of the step is smaller than 1mm, and a kick surface of the formed step forms an obtuse angle of 110-150 degrees with the back mold core plane at one side close to the center of the back mold core; one side of the convex pattern of the unilateral dovetail groove far away from the center of the back mold core forms an acute angle of 55-89 degrees with the plane of the back mold core from the top of the second-stage step to the concave pattern surface;

the unilateral dovetail groove convex pattern is a first-level step convex pattern when being a stripe, one side close to the center of the back die core forms a slope with 110 degrees to 150 degrees from a concave pattern surface or an arc slope lifts up the step with the height of 1mm to 5mm, the width of the top plane of the step is smaller than 1mm, and one side of the unilateral dovetail groove convex pattern far away from the center of the back die core forms an acute angle of 55 degrees to 89 degrees from the top of the step to the surface of the concave pattern surface.

2. The tile back mold core with the four corners and the single sides provided with the dovetail grooves as claimed in claim 1, wherein the single-side dovetail grooves of the tile back mold core are arranged in four corner regions except the central radius of the back mold core of 100mm and the central vertical lines of the four sides of 5mm wide, and the other lines except the single-side dovetail grooves are grid lines or stripes with the periphery forming an obtuse angle of 110-150 degrees with the plane of the back mold core and the height of 0.5-1.2 mm.

3. The back mold core for the ceramic tile with the four corners and the single side dovetail grooves as claimed in claim 1, wherein an equal static pressure layer can be arranged between the iron matrix of the back mold core and vulcanized rubber on the surface of the back mold core; an exhaust system can be arranged between the back mold core iron matrix and the vulcanized rubber on the surface of the back mold core, an exhaust port is positioned at the obtuse angle slope of the convex grains of the single-side dovetail groove or the plane of the first-level step of the check grains, and an exhaust pipe is positioned in the back mold core iron matrix.

4. A four-corner single-side dovetail groove back grain ceramic tile, which is formed by pressing the four-corner single-side dovetail groove ceramic tile back mold core according to any one of claims 1 to 3, wherein four corner regions of the ceramic tile are single-side dovetail groove concave grains of grains or stripes, each grain or each stripe is provided with a grain side edge with an inverted acute angle smaller than 1/2 grain perimeter, the angle formed by the grain side edge with the inverted acute angle and a tile back plane is 55-89 degrees, and the angle formed by the grain side edge except the residual part of the inverted acute angle and the tile back plane is 110-150 degrees.