A ceramic tile forming mold, a demoulding method and a ceramic tile blank preparation process using the same

Abstract

The present invention discloses a ceramic tile forming mold, a demoulding method and a ceramic tile blank preparation process using the same, comprising a supporting plate and a movable mold frame, wherein the thickness T1 of the supporting plate is greater than the thickness T2 of the movable mold frame, and the movable mold frame is arranged above the supporting plate, so that the supporting plate and the movable mold frame form a containing cavity for containing powder; a first groove is arranged at the lower end of the movable mold frame, a second groove corresponding to the position of the first groove is arranged on the supporting plate, the width W1 of the second groove is greater than or equal to the width W2 of the movable mold frame, the first groove and the second groove form an installation cavity, and a plurality of elastic parts are arranged in the installation cavity. The method can adapt to the forming of ceramic tiles of different thicknesses, so that the thickness of the ceramic tile blank is flexible and adjustable; after the pressing is completed, the ceramic tile forming mold only needs to be turned over, and an external force is applied to retract the movable mold frame into the second groove, so that the blank and the ceramic tile forming mold are more easily separated, the operation is more convenient, and the structure is simpler.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic tile moulds, and in particular to a ceramic tile forming mould, a demoulding method and a ceramic tile blank preparation process using the same. Background Art

[0002] Tile products include different types such as solid color tiles and multi-color tiles. Various complex and varied patterns or textures can be printed on the surface, which has a good decorative effect and the subsequent cleaning and maintenance process is also relatively convenient, and is deeply loved by consumers.

[0003] The existing ceramic tile preparation process mainly adopts press to press and then dry and burn to obtain ceramic tile products. Since the overall structure of the lower mold of the existing ceramic tile mold is complex and the weight is large, only a separate feeding device can be set to directly feed the material in the lower mold of the press. The feeding method of the feeding device is relatively single, which is not conducive to the manufacture of ceramic tile products with complex textures, such as full-body marble tiles; and the lower mold of the existing ceramic tile mold cannot move up and down freely. When preparing ceramic tiles of different specifications, different upper and lower molds need to be replaced. The operation process is relatively cumbersome. When discharging, the lower mold needs to be ejected by the lifting device in the lower mold so that the brick can be transported to the outside. After the lifting device is added, the structure of the lower mold is more complicated and the production cost is also increased. Summary of the invention

[0004] The main purpose of the present invention is to propose a ceramic tile forming mold, a demoulding method and a ceramic tile preparation process using the same, aiming to solve the technical problem that the existing ceramic tile mold has a complex structure and requires the replacement of molds of different specifications to prepare ceramic tiles of different specifications.

[0005] To achieve the above object, the present invention provides a ceramic tile forming mold, comprising a supporting plate and a movable mold frame, wherein the thickness T1 of the supporting plate is greater than the thickness T2 of the movable mold frame, and the movable mold frame is arranged above the supporting plate, so that the supporting plate and the movable mold frame form a receiving cavity for containing powder;

[0006] A first groove is provided at the lower end of the movable mold frame, and a second groove corresponding to the position of the first groove is provided on the supporting plate. The width W1 of the second groove is ≥ the width W2 of the movable mold frame. The first groove and the second groove form an installation cavity, and a plurality of elastic parts are provided in the installation cavity.

[0007] Preferably, a fixing portion is detachably provided on the outer side of the movable mold frame, and the first groove is located below the fixing portion.

[0008] Preferably, a third groove is provided below the second groove, and the width W2 of the movable mold frame>the width W3 of the third groove=the width W4 of the first groove=the outer diameter D1 of the elastic member.

[0009] Preferably, a dust leakage hole for discharging waste powder in the installation cavity is further provided at the lower end of the third groove, and a width W5 of the dust leakage hole is less than a width W3 of the third groove.

[0010] Preferably, it further comprises a fixed mold frame for improving the strength of the movable mold frame, wherein the fixed mold frame is detachably arranged above the supporting plate and located outside the movable mold frame.

[0011] Preferably, a plurality of fourth grooves are provided below the fixed mold frame, the support plate is provided with through grooves corresponding to the fourth grooves, the fourth grooves and the through grooves form a receiving groove, and a positioning column is provided in the receiving groove.

[0012] Preferably, a gelatin layer is further provided above the supporting plate.

[0013] Preferably, the elastic member is a spring, an elastic rubber column or a hydraulic column.

[0014] In addition, the present invention also provides a demoulding method for a tile forming mold as described in any one of the above items, comprising the following steps: after the tile forming mold and the brick blank inside thereof are turned over by a turning device, the movable mold frame is pressed into the second groove to separate the brick blank from the tile forming mold, the brick blank is transported to the outside by a conveying device, and the tile forming mold is turned over to the initial position by a turning device;

[0015] Alternatively, the movable mold frame is pressed into the second groove to separate the green brick from the tile forming mold, and then the green brick is transported to the outside by a conveying device.

[0016] In addition, the present invention also provides a process for preparing a ceramic tile blank, comprising the following steps:

[0017] S1, filling the containing cavity with powder and pre-pressing the powder with a pre-pressing device;

[0018] S2, after pre-pressing, the tile powder is pressed by a press to obtain a brick blank;

[0019] S3, demoulding the tile blank after being removed from the press from the tile forming mold using the demoulding method described above;

[0020] S4, after demoulding, drying the green brick to obtain the ceramic green brick.

[0021] The ceramic tile forming mold of the present invention has the following beneficial effects: the movable mold frame and the supporting plate form a containing cavity for holding ceramic tile powder, a first groove is provided below the movable mold frame, and a corresponding second groove is provided on the supporting plate, the second groove and the first groove are interconnected, and form an installation cavity for installing an elastic member, after the elastic member is installed, the movable mold frame can be compressed toward the inside of the second groove when subjected to the action of an external force, and when the height of the movable mold frame extending to the supporting plate is the required thickness of the ceramic tile, the application of external force is stopped, and the movable mold frame is clamped by a pressing rod or other equipment before the subsequent pressing process can be carried out, the mold of this scheme can adapt to the molding of ceramic tiles of different thicknesses, so that the thickness of the ceramic tile blank is flexibly adjustable; after the pressing is completed, it is only necessary to apply external force to the top of the movable mold frame so that the movable mold frame retracts into the second groove, and the outer side of the ceramic tile blank will not be blocked by the mold frame, so the ceramic tile blank can be directly pushed out; or the ceramic tile forming mold is turned over, and an external force is applied to retract the movable mold frame into the second groove, so that the brick blank and the ceramic tile forming mold are more easily separated, the operation is more convenient, and the structure is relatively simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of a ceramic tile forming mold of the present invention;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the ceramic tile forming mold of the present invention;

[0025] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0026] Figure 4 for Figure 2 A magnified view of the structure at center A;

[0027] Figure 5 A top view of an embodiment of a ceramic tile forming mold of the present invention;

[0028] Figure 6 A top view of another embodiment of the tile forming mold of the present invention.

[0029] Description of Figure Numbers:

[0030]

[0031]

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention provides a ceramic tile forming mold. The ceramic tile forming mold is used for pressing ceramic tiles. The movable mold frame 2 and the material support plate 1 are both movably arranged. The thickness of the powder can be adjusted according to the lifting height of the movable mold frame 2, so that ceramic tile blanks of different thicknesses can be prepared by a single ceramic tile forming mold, which is convenient to use and saves production costs.

[0037] In one embodiment of the present invention, Figures 1 to 6 As shown, a ceramic tile forming mold comprises a supporting plate 1 and a movable mold frame 2, wherein the thickness T1 of the supporting plate 1 is greater than the thickness T2 of the movable mold frame 2, and the movable mold frame 2 is arranged above the supporting plate 1, so that the supporting plate 1 and the movable mold frame 2 form a receiving cavity 3 for containing powder;

[0038] A first groove 21 is provided at the lower end of the movable mold frame 2, and a second groove 11 corresponding to the position of the first groove 21 is provided on the supporting plate 1. The width W1 of the second groove 11 is ≥ the width W2 of the movable mold frame 2. The first groove 21 and the second groove 11 form an installation cavity, and a plurality of elastic members 4 are provided in the installation cavity.

[0039] Specifically, the ceramic tile forming mold includes a support plate 1 and a movable mold frame 2. The movable mold frame 2 has a hollow structure inside and is arranged above the support plate 1, so as to form a accommodating cavity 3 that can hold ceramic tile powder with the support plate 1. A first groove 21 is provided below the movable mold frame 2. Correspondingly, a second groove 11 is provided on the support plate 1. The second groove 11 and the first groove 21 are interconnected to form an installation cavity for installing the elastic member 4. When the elastic member 4 is installed, the movable mold frame 2 can be compressed into the second groove 11 when subjected to an external force, and when the height of the movable mold frame 2 extending from the support plate 1 is the required thickness of the ceramic tile. , stop applying external force, use a pressure rod or other equipment (not shown in the figure) to lock the movable mold frame 2, and carry out the subsequent pressing process; after the pressing is completed, the ceramic tile blank needs to be demolded. The existing ceramic tile blank usually has a separate lifting device inside the mold to push out the support plate 1 when it needs to be demolded, and the overall structure is relatively complicated. When the ceramic tile blank is demolded, the movable mold frame 2 of this scheme only needs to apply external force to the top of the movable mold frame 2, so that the movable mold frame 2 retracts to the inside of the second groove 11, and the outside of the ceramic tile blank will not be blocked by the mold frame, so the ceramic tile blank can be directly pushed out, which is more convenient to operate and has a relatively simpler structure. The ceramic tile forming mold of this scheme is more convenient in the production of full-body marble tiles. The mold can be used to press after the external material is laid, the arrangement of the powder pattern is more diverse, and the production efficiency is improved.

[0040] Furthermore, the outer side of the movable mold frame 2 is detachably provided with a fixing portion 23, and the first groove 21 is located below the fixing portion 23. In another embodiment of the present invention, the outer sides of the four frames of the movable mold frame 2 can be provided with a fixing portion 23 protruding from the edge of the movable mold frame 2, and an elastic member 4 is provided below the fixing portion 23. Correspondingly, the position of the second groove 21 is offset to the corresponding position on the outer side of the support plate 1, so that the movable mold frame 2 can move up and down with the elastic member 4 through the fixing portion 23. The fixing portion 23 and the movable mold frame 2 are detachably arranged. When the fixing portion 23 is not installed, the fixed mold frame 5 can be installed on the outer side of the movable mold frame 2 for support and fixation. The upper mold of the present invention does not need to be replaced. After setting the pressing of the upper mold to the maximum size during production, within the range of the upper mold pressing surface, the upper mold does not need to be replaced for pressing tiles of different specifications. The present invention makes it unnecessary to frequently replace the upper mold core, lower mold assembly and mold assembly of the press, and the installation is simpler and more convenient. There is no need to accurately position and debug the upper and lower molds, which can greatly save the time of replacing the molds and improve efficiency. At the same time, it also avoids calibrating and debugging the molds, wasting a lot of calibration consumables, and eliminating the safety hazards caused by traditional mold replacement.

[0041] Furthermore, a third groove 12 is provided below the second groove 11 , and the width W2 of the movable mold frame 2 > the width W3 of the third groove 12 = the width W4 of the first groove 21 = the outer diameter D1 of the elastic member 4 .

[0042] Specifically, a third groove 12 is provided below the second groove 11. One of the functions of the second groove 11 is to accommodate the movable mold frame 2 when the elastic member 4 is compressed. The second function is to provide an installation space for the elastic member 4. The width of the second groove 11 is the largest. The movable mold frame 2 can move freely in the second groove 11. The first groove 21 and the third groove 12 are respectively used to install the head and the end of the elastic member 4. The width is preferably consistent with that of the elastic member 4. In this way, the elastic member 4 can be supported while being installed. At the same time, the width of the third groove 12 is smaller than that of the movable mold frame 2 to prevent the movable mold frame 2 from descending too much.

[0043] Furthermore, a dust leakage hole 13 for discharging waste powder in the installation cavity 4 is further provided at the lower end of the third groove 12 , and a width W5 of the dust leakage hole 13 is less than a width W3 of the third groove 12 .

[0044] Specifically, a dust leakage hole 13 is provided below the third groove 12. During the pressing process, part of the ceramic powder is subjected to the impact force during the pressing and is scattered outward, falls and adheres to the side of the movable mold frame 2. When the elastic member 4 is compressed, the powder will fall into the second groove 11. In order to prevent the waste powder in the second groove 11 from accumulating too much and affecting the continuous operation of the elastic member 4 and the movable mold frame 2, the dust leakage hole 13 is provided to facilitate the timely discharge of the waste powder in the second groove 11. The width of the dust leakage hole 13 is smaller than the width of the third groove 12 to prevent the elastic member 4 from falling out of the support plate 1.

[0045] Furthermore, it also includes a fixed mold frame 5 for improving the strength of the movable mold frame 2 . The fixed mold frame 5 is detachably arranged above the supporting plate 1 and located on the outer side of the movable mold frame 2 .

[0046] In order to improve the strength of the movable mold frame 2 during operation and prevent the movable mold frame 2 from deviating outward during the pressing process of the tile blank, the present solution is provided with a fixed mold frame 5 to support the outer side of the movable mold frame 2. The fixed mold frame 5 is also arranged above the support plate 1, and the fixed mold frame 5 and the support plate 1 are detachably fixed, and fixed mold frames 5 of different specifications can be replaced. When the strength of the movable mold frame 2 is sufficient, the fixed mold frame 5 can be omitted.

[0047] Furthermore, a plurality of fourth grooves 51 are provided below the fixed mold frame 5 , and the support plate 1 is provided with through grooves 14 corresponding to the fourth grooves 51 . The fourth grooves 51 and the through grooves 14 form a receiving groove, and a positioning column 6 is provided in the receiving groove.

[0048] It can be understood that the fixed mold frame 5 and the support plate 1 are detachably fixed by the positioning column 6. The fourth groove 51 of the fixed mold frame 5 and the through groove 14 on the support plate 1 form a receiving groove. The positioning column 6 is installed inside the receiving groove and connects the fixed mold frame 5 and the support plate 1. During installation, the positioning column 6 is inserted from the through groove 14 of the support plate 1 and stuck in the fourth groove 51 to ensure the stable connection between the fixed mold frame 5 and the support plate 1.

[0049] Furthermore, a gelatin layer 7 is provided above the support plate 1. Thus, the provision of the gelatin layer 7 facilitates demoulding after the tile blank is pressed and formed.

[0050] Furthermore, the elastic member 4 is a spring, an elastic rubber column or a hydraulic column. It is understood that when the elastic member 4 is a spring, its elastic force is relatively large, and it has a certain hardness and strength to support the movable mold frame 2 to perform lifting and lowering movements, and the spring has a long service life and does not need to be frequently replaced, thereby ensuring the service life of the tile forming mold and having a low manufacturing cost. In addition, the elastic member 4 can also be set as other elastic rubber columns or hydraulic columns with greater strength and hardness.

[0051] In addition, the present invention also proposes a demolding method for a tile forming mold as described in any of the above items, comprising the following steps: after flipping the tile forming mold and the brick blank inside it by a flipping device, pressing the movable mold frame 2 into the second groove 11 to separate the brick blank from the tile forming mold, transporting the brick blank to the outside by a conveying device, and then flipping the tile forming mold to its initial position by a flipping device; or, pressing the movable mold frame 2 into the second groove 11 to separate the brick blank from the tile forming mold, and then transporting the brick blank to the outside by a conveying device.

[0052] Specifically, after the ceramic tile is pressed and formed, the ceramic tile forming mold and the brick blank inside the accommodating cavity are completely turned over, and the support frame supports the formed brick blank and the movable mold frame 2. Since the support frame has a push rod at the corresponding position of the movable mold frame 2, the push rod is used to press the movable mold frame 2 into the second groove 11, so that the brick blank is convenient for the ceramic tile forming mold to be completely separated. After the support frame is removed, the brick blank is transported from the support frame to the outside world through the conveying equipment. At this time, the flipping device flips the ceramic tile forming mold back to the initial position, which is convenient for subsequent pressing and demolding. The separation of the brick blank from the ceramic tile forming mold can also be carried out in another way. After using the pressure rod to press down the movable mold frame 2, the movable mold frame 2 is completely retracted into the second groove 11, and then the brick blank is pushed out from the support plate 1.

[0053] In addition, the present invention also provides a process for preparing a ceramic tile blank, comprising the following steps:

[0054] S1, filling the containing chamber 3 with powder and pre-pressing the powder using a pre-pressing device;

[0055] S2, after pre-pressing, the tile powder is pressed by a press to obtain a brick blank;

[0056] S3, demoulding the tile blank after being removed from the press from the tile forming mold using the demoulding method described above;

[0057] S4, after demoulding, the green brick is dried or re-decorated to obtain the ceramic green brick.

[0058] The structure of the ceramic tile forming mold in the present scheme is relatively simple. Various required powders can be placed outside and then placed inside the press, so it is convenient to produce various styles of ceramic tiles. The powder needs to be pre-pressed before pressing to remove the gas inside the powder and improve the quality of the ceramic tiles. Then it is pressed and formed. The thickness of the ceramic tiles produced by this scheme can be adaptively adjusted through the movable mold frame 2. After the pressed bricks are demolded from the ceramic tile forming mold, they are transported to the kiln for drying to obtain ceramic tile products. Moreover, the external material distribution circulation process of the present invention can realize the production process distribution of ceramic tiles, such as full-body marble ceramic tiles, more quickly and more effectively, and especially has the unique advantage of realizing the distribution of full-body micro-powder polished tiles. For the realization of full-body marble fully polished glaze products, it is easier to realize the accurate color matching of the pattern of the body and the inkjet pattern of the glaze, and there will be no mismatching of patterns due to the production links, the transportation links of the glaze line, and the lack of bricks, few bricks and rotten bricks. There will also be no large amount of powder waste, and the full-body micro-powder bricks can be produced quickly and effectively, avoiding the following defects of the belt-type material distribution pressing method in the prior art: wasting a large amount of production powder; due to the wear and aging of the belt, it needs to be replaced regularly for three months or less, and there are many production limitations, such as the inability to produce products with hard particles such as transparent frit particles and metal particles. Ceramic tile products.

[0059] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A tile forming mold, characterized in that: It comprises a supporting plate and a movable mold frame, wherein the thickness T1 of the supporting plate is greater than the thickness T2 of the movable mold frame, and the movable mold frame is arranged above the supporting plate, so that the supporting plate and the movable mold frame form a containing cavity for containing powder; A first groove is provided at the lower end of the movable mold frame, and a second groove corresponding to the position of the first groove is provided on the supporting plate. The width W1 of the second groove is ≥ the width W2 of the movable mold frame. The first groove and the second groove form an installation cavity, and a plurality of elastic parts are provided in the installation cavity.

2. A ceramic tile forming mold according to claim 1, characterized in that: A fixing part is detachably provided on the outer side of the movable mold frame, and the first groove is located below the fixing part.

3. A tile forming mold according to claim 1, characterized in that: A third groove is provided below the second groove, and the width W2 of the movable mold frame>the width W3 of the third groove=the width W4 of the first groove=the outer diameter D1 of the elastic member.

4. A tile forming mold according to claim 3, characterized in that: A dust leakage hole for discharging waste powder in the installation cavity is further provided at the lower end of the third groove, and a width W5 of the dust leakage hole is less than a width W3 of the third groove.

5. A ceramic tile forming mold according to claim 1, characterized in that: It also includes a fixed mold frame for improving the strength of the movable mold frame. The fixed mold frame is detachably arranged above the supporting plate and located on the outer side of the movable mold frame.

6. A tile forming mold according to claim 5, characterized in that: A plurality of fourth grooves are arranged below the fixed mold frame, and the support plate is provided with through grooves corresponding to the fourth grooves. The fourth grooves and the through grooves form a receiving groove, and a positioning column is arranged in the receiving groove.

7. A ceramic tile forming mold according to claim 1, characterized in that: A colloid layer is also provided above the supporting plate.

8. A ceramic tile forming mold according to claim 1, characterized in that: The elastic member is a spring, an elastic rubber column or a hydraulic column.

9. A demoulding method using the tile forming mold according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: after the tile forming mold and the brick blank inside thereof are turned over by a turning device, the movable mold frame is pressed into the second groove to separate the brick blank from the tile forming mold, the brick blank is transported to the outside by a conveying device, and the tile forming mold is turned over to the initial position by a turning device; Alternatively, the movable mold frame is pressed into the second groove to separate the green brick from the tile forming mold, and then the green brick is transported to the outside by a conveying device.

10. A process for preparing a ceramic tile blank, characterized in that: The steps include: S1, filling the containing cavity with powder and pre-pressing the powder with a pre-pressing device; S2, after pre-pressing, the tile powder is pressed by a press to obtain a brick blank; S3, demolding the tile blank after being removed from the press from the tile forming mold using the demolding method as described in claim 9; S4, after demoulding, drying the green brick to obtain the ceramic green brick.

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