Anti-powder-sticking travertine brick mold structure

Abstract

The utility model relates to the technical field of ceramic tile molds, and discloses a powder-sticking-preventing travertine brick mold structure which comprises a mold body, the mold body is provided with an installation plane and a plurality of protruding parts, the installation plane and the protruding parts are made of different materials, one of the installation plane and the protruding parts is made of rigid materials, and the other one of the installation plane and the protruding parts is a high polymer material component. The surface roughness of the rigid material is less than Ra 0.8 [mu] m and greater than Ra 0.4 [mu] m. The rigid material and the high polymer material component are matched, the surface roughness of the rigid material is limited, the problem that powder is prone to adhering when an existing pure rigid material is pressed is solved, and compared with an existing mold with the pressing face directly covered with a complete high polymer material layer, a rubber layer with a raised grain curved surface is not needed; the problems that powder is easy to hide and difficult to clean and the cost is high are solved, the pressed and formed travertine brick green brick has a better natural travertine imitation effect and higher flatness, and the quality of travertine brick products can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of ceramic tile mold technology, and in particular to a travertine brick mold structure that prevents powder from sticking. Background Technology

[0002] In existing technologies, to achieve the decorative effect of travertine tiles, the initial pressing molds used were made entirely of pure metal. However, these molds suffered from significant powder adhesion during use, leading to shape defects and affecting product quality. To address this powder adhesion issue, the current practice is to replace the entire pressing surface with a rubber layer. Specifically, patent application number 202320080329.8 discloses that the top of the rubber layer is a wavy curved surface, used to form the texture on the surface of the travertine tile. This wavy curved surface has multiple randomly arranged protrusions and holes, achieving the travertine decorative effect. However, in actual production, it has been found that the wavy curved surface of the rubber material easily traps powder during pressing, making it difficult to clean. Furthermore, the protrusions and holes are prone to wear, requiring the entire rubber layer to be replaced after wear, resulting in high costs.

[0003] Therefore, it is particularly important to develop a low-cost mold structure that can preserve the surface texture of travertine bricks while preventing powder from sticking. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to propose a travertine brick mold structure that prevents excessive powder adhesion while maintaining the natural travertine effect of the brick. This structure is also low-cost, easy to maintain, and effectively improves production efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A mold structure for anti-sticking travertine bricks includes a mold body, the mold body having an mounting plane and a plurality of protrusions, the mounting plane and the protrusions being located on the same side of the planar mold core, and the plurality of protrusions protruding from the mounting plane respectively, the plurality of protrusions being spaced apart, and the area of ​​the mounting plane where no protrusions are distributed forming a pressing surface with the protruding surface of the protrusions;

[0007] The mounting plane and the protrusion are made of different materials, and one of the mounting plane and the protrusion is made of rigid material and the other is made of polymer material. The surface roughness of the rigid material is less than Ra0.8μm and greater than Ra0.4μm.

[0008] Preferably, the mold body includes a rigid mold core, the mounting plane is the plane of the rigid mold core, the mounting plane is a steel plane, the protrusion is a flexible protrusion, and the flexible protrusion is connected to the rigid mold core.

[0009] Preferably, the mold body includes a rigid mold core and a flexible mold core, the mounting plane is one plane of the flexible mold core, the other plane of the flexible mold core away from the mounting plane is connected to the rigid mold core, and the rigid mold core is provided with a mold edge, which is flush with the mounting plane;

[0010] The protrusion is a rigid protrusion, which is connected to the rigid mold core and protrudes through the flexible mold core onto the mounting plane.

[0011] Preferably, the rigid mold core or the rigid protrusion is made of mold steel, and the flexible mold core or the flexible protrusion is made of rubber.

[0012] Preferably, the distance between the point furthest from the mounting plane in the protrusion and the mounting plane is 3 to 8 millimeters, and the slope at the connection between the protrusion and the mounting plane is 70 to 90 degrees.

[0013] Preferably, it further includes a heating plate, which is connected to the side of the mold body away from the mounting plane, and the heating plate is used to heat the mold body.

[0014] Preferably, the heating plate has a plurality of heating oil channels inside, which are arranged parallel to the mounting plane at intervals, and the two ends of the heating oil channels are connected to an external circulating oil supply mechanism.

[0015] Preferably, it also includes a heat insulation plate, which is connected to the side of the heating plate away from the mold body.

[0016] Preferably, it also includes a cleaning unit for cleaning the mounting surface and the protrusion.

[0017] Preferably, the cleaning unit includes a roller brush and a roller brush drive mechanism. The roller brush's rolling axis is parallel to the mounting plane. The roller brush is connected to the roller brush drive mechanism, which drives the roller brush to reciprocate parallel to the mounting plane. The roller brush drive mechanism also drives the roller brush to roll. The reciprocating movement and rolling of the roller brush are used to clean the mounting plane and the protrusion.

[0018] The technical solution provided by this utility model can include the following beneficial effects:

[0019] By combining rigid and polymer components and limiting the surface roughness of the rigid material, the problem of powder sticking during the pressing of existing pure rigid materials is solved. Compared with existing molds that directly cover the pressing surface with a complete polymer material layer, the wavy curved rubber layer is not required, which overcomes the problems of easy powder accumulation, difficult cleaning, and high cost. The pressed travertine brick blanks have a better imitation of natural travertine effect and higher flatness, which can effectively improve the quality of travertine brick products.

[0020] Polishing the rigid material in the mold body makes the surface of the rigid material smoother. When the surface roughness of the rigid material is less than Ra0.8μm, a large amount of powder can be effectively reduced while retaining an appropriate amount of powder, making the surface / hole surface of the pressed travertine brick more natural.

[0021] The design combines a rigid mold core with flexible protrusions. The rigid mold core has high strength and is not easily damaged or deformed. The steel plane ensures uniform pressure on the brick surface, resulting in high flatness and overall high yield. The flexible protrusions can slightly deform according to the pressure of the press, allowing for fine-tuning of the pressing effect. During mass production, the travertine effect can be fine-tuned by adjusting the press pressure, preventing identical finished products from being produced in the same batch. This design can mimic the random yet orderly changes in nature.

[0022] By using a combination of rigid mold cores, flexible mold cores, and rigid protrusions, the flexible mold core is slightly deformed under the support of the rigid mold core, and together with the rigid protrusions, a more natural texture structure is formed on the surface of the travertine brick, resulting in a better overall imitation of natural travertine effect.

[0023] By using a heating plate to heat the mold body, sticking to the mold can be reduced, improving the surface quality and yield of travertine brick products.

[0024] By using a cleaning unit, the mounting plane of the mold body is cleaned at the end of each stamping process to remove adhering powder, thus solving the problem of powder accumulation on the mold surface affecting the surface quality of travertine bricks.

[0025] After cleaning by the cleaning unit, the small amount of residue left on the mold body causes subtle changes to the surface of the travertine bricks during each molding process, resulting in a more natural surface finish. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention.

[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0028] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0029] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0030] Figure 5 This is a cross-sectional view of the heating plate according to one embodiment of the present invention.

[0031] The components include: mold body 1, mounting plane 11, rigid mold core 111, mold edge 1110, flexible mold core 112, protrusion 12, rigid protrusion 121, flexible protrusion 122, heating plate 13, heating oil channel 131, and cleaning unit 2. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The embodiments of this utility model are described below with reference to the accompanying drawings.

[0037] A mold structure for anti-sticking travertine bricks includes a mold body 1. The mold body 1 is provided with a mounting plane 11 and a plurality of protrusions 12. The mounting plane 11 and the protrusions 12 are located on the same side of the planar mold core 11, and the plurality of protrusions 12 protrude from the mounting plane 11 respectively. The plurality of protrusions 12 are distributed at intervals. The area of ​​the mounting plane 11 where the protrusions 12 are not distributed and the protruding surface of the protrusions 12 form a pressing surface.

[0038] The mounting plane 11 and the protrusion 12 are made of different materials, and one of the mounting plane 11 and the protrusion 12 is a rigid material and the other is a polymer material component. The surface roughness of the rigid material is less than Ra0.8μm and greater than Ra0.4μm.

[0039] By combining rigid and polymer components and limiting the surface roughness of the rigid material, the problem of powder sticking during the pressing of existing pure rigid materials (i.e., pure metal molds) is solved. Compared with existing molds that directly cover the pressing surface with a complete polymer material layer (such as a rubber layer with raised texture), the wavy curved rubber layer is not required, which overcomes the problems of easy powder accumulation, difficult cleaning, and high cost. The pressed travertine brick blanks have a better imitation of natural travertine effect and higher flatness, which can effectively improve the quality of travertine brick products.

[0040] Polishing the rigid material in the mold body makes the surface of the rigid material smoother. When the surface roughness of the rigid material is less than Ra0.8μm, a large amount of powder can be effectively reduced. At the same time, controlling the surface roughness to be greater than Ra0.4μm retains an appropriate amount of powder, making the surface / hole surface of the pressed travertine brick more natural.

[0041] The protrusions may be any one or a combination of polygonal prism protrusions, cylindrical protrusions, square prism protrusions, spherical protrusions, or irregularly shaped protrusions. The surface of the protrusions is free of bumps or scratches.

[0042] Preferably, the mold body 1 includes a rigid mold core 111, the mounting plane 11 is the plane of the rigid mold core 111, the mounting plane 11 is a steel plane, the protrusion 12 is a flexible protrusion 122, and the flexible protrusion 122 is connected to the rigid mold core 111.

[0043] like Figure 1 and Figure 2As shown, a rigid mold core 111 and flexible protrusions 122 are used in combination. The rigid mold core 111 has high strength and is not easily damaged or deformed. The steel plane ensures uniform pressure on the brick surface, resulting in high flatness and overall high yield. The flexible protrusions 122 can slightly deform according to the pressure of the press, allowing for fine-tuning of the pressing effect. In mass production, the travertine effect can be finely adjusted by changing the press pressure, preventing identical products from being identical and mimicking the random yet orderly changes in nature. The rigid mold core 111 is made of a rigid material, while the flexible protrusions 122 are made of a polymer material. It should be noted that the placement of the flexible protrusions 122 can vary in different travertine brick mold structures. In actual production, if only one set of travertine brick mold structure is available and a different travertine effect is desired, the flexible protrusions 122 on the steel plane can be removed, cleaned, and then re-adhesive-applied to deploy new flexible protrusions 122.

[0044] Preferably, the mold body 11 includes a rigid mold core 111 and a flexible mold core 112. The mounting plane 11 is a plane of the flexible mold core 112. The other plane of the flexible mold core 112, which is away from the mounting plane 11, is connected to the rigid mold core 111. The rigid mold core 111 is provided with a mold edge 1110, which is flush with the mounting plane 11.

[0045] The protrusion 12 is a rigid protrusion 121, which is connected to the rigid mold core 111 and protrudes through the flexible mold core onto the mounting plane 11.

[0046] like Figure 3 and Figure 4 As shown, a rigid mold core 111, a flexible mold core 112, and rigid protrusions 121 are used in combination. The flexible mold core 112 is slightly deformed under the support of the rigid mold core 111, and together with the rigid protrusions 121, a more natural texture structure is formed on the surface of the travertine brick, resulting in a better overall imitation of natural travertine. Among them, the rigid mold core 111 and the rigid protrusions 121 are made of rigid materials, while the flexible mold core 112 is made of polymer materials.

[0047] Preferably, the rigid mold core 111 or the rigid protrusion 121 is made of mold steel.

[0048] Using this material, the rigid mold core 111 and the rigid protrusion 121 have good processing performance, are wear-resistant and durable, and have a good anti-powdering effect after polishing.

[0049] Specifically, mold steel can be selected from cold work mold steel, hot work mold steel, or plastic mold steel, etc.

[0050] The flexible mold core 112 or the flexible protrusion 122 is made of rubber.

[0051] In a specific embodiment, slight deformation of the rubber is utilized to achieve naturally varied surface textures in the travertine brick product. The rubber is non-stick, and the overall mold structure provides excellent anti-powder adhesion.

[0052] Preferably, the distance between the point furthest from the mounting plane in the protrusion and the mounting plane is 3 to 8 millimeters, and the slope at the connection between the protrusion and the mounting plane is 70 to 90 degrees.

[0053] When the protrusion is less than 3 mm, the surface effect of travertine bricks cannot be effectively achieved; when it is greater than 8 mm, the mold processing is more difficult.

[0054] When the slope of the protrusion is less than 70 degrees, the surface effect of the formed travertine brick is poor. When it is greater than 90 degrees, the formed travertine brick cannot be demolded, or the surface of the travertine brick will be damaged.

[0055] Preferably, it also includes a heating plate 13, which is connected to the side of the mold body 1 away from the mounting plane 11, and the heating plate 13 is used to heat the mold body 1.

[0056] By heating the mold body 1 with the heating plate 13, sticking to the mold can be reduced, and the surface quality and yield of travertine brick products can be improved.

[0057] Preferably, the heating plate 13 has a plurality of heating oil channels 131 inside, and the plurality of heating oil channels 131 are arranged parallel to the mounting plane 11 at intervals, and the two ends of the heating oil channels 131 are connected to an external circulating oil supply mechanism.

[0058] like Figure 3 and Figure 5 As shown, in a specific embodiment, hydraulic oil is introduced into the heating oil passage 131 to heat the heating plate 13. The hydraulic oil is heated by an external hydraulic oil station, and the hydraulic oil temperature is controlled between 25°C and 55°C.

[0059] Preferably, it also includes a heat insulation plate, which is connected to the side of the heating plate 13 away from the mold body 1.

[0060] In a specific embodiment, a heat insulation plate is disposed between the mold body 1 and the external mold driving press. The heat insulation plate 13 and the press are isolated by the heat insulation plate, so as to avoid the temperature of the heat insulation plate 13 from having a negative impact on the press itself.

[0061] Preferably, it also includes a cleaning unit 2, which is used to clean the mounting surface 11 and the protrusion 12.

[0062] By using the mounting plane 11 and the protrusion 12 to form the decorative surface of the travertine brick, at the end of each stamping, the cleaning unit 2 cleans the mounting plane 11 side of the mold body 1 to remove the sticky powder, thus solving the problem of the accumulation of sticky powder on the mold surface affecting the surface quality of the travertine brick.

[0063] Meanwhile, after cleaning by cleaning unit 2, the small amount of residue on the mold body 1 causes subtle changes in the surface of the travertine brick during each molding process, making the surface of the travertine brick more natural.

[0064] Preferably, the cleaning unit 2 includes a roller brush and a roller brush drive mechanism. The roller brush's rolling axis is parallel to the mounting plane 11. The roller brush is connected to the roller brush drive mechanism, which drives the roller brush to reciprocate parallel to the mounting plane 11. The roller brush drive mechanism also drives the roller brush to roll. The reciprocating movement and rolling of the roller brush are used to clean the mounting plane 11 and the protrusion 12.

[0065] In a specific embodiment, the movement and rolling speed of the roller brush are controlled by the roller brush drive mechanism. After each pressing is completed and the travertine brick is removed, the roller brush is used to clean the mounting surface 11 of the mold body 1 and the protrusions 12 thereon to control the powder adhesion on the surface of the mold body 1.

[0066] Other configurations and operations according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0067] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mold structure for preventing powder sticking in travertine bricks, characterized in that: The mold body includes a mounting plane and a plurality of protrusions. The mounting plane and the protrusions are located on the same side of the planar mold core, and the plurality of protrusions protrude from the mounting plane respectively. The plurality of protrusions are distributed at intervals, and the area of ​​the mounting plane where the protrusions are not distributed and the protruding surface of the protrusions form a pressing surface. The mounting plane and the protrusion are made of different materials, and one of the mounting plane and the protrusion is made of rigid material and the other is made of polymer material. The surface roughness of the rigid material is less than Ra0.8μm and greater than Ra0.4μm.

2. The anti-sticking travertine brick mold structure according to claim 1, characterized in that: The mold body includes a rigid mold core, the mounting plane is the plane of the rigid mold core, the mounting plane is a steel plane, the protrusion is a flexible protrusion, and the flexible protrusion is connected to the rigid mold core.

3. The anti-sticking travertine brick mold structure according to claim 1, characterized in that: The mold body includes a rigid mold core and a flexible mold core. The mounting plane is one plane of the flexible mold core. Another plane of the flexible mold core, away from the mounting plane, is connected to the rigid mold core. The rigid mold core is provided with a mold edge, which is flush with the mounting plane. The protrusion is a rigid protrusion, which is connected to the rigid mold core and protrudes through the flexible mold core onto the mounting plane.

4. The anti-sticking travertine brick mold structure according to claim 3, characterized in that: The rigid protrusions are made of mold steel, and the flexible mold core is made of rubber.

5. The anti-sticking travertine brick mold structure according to claim 1, characterized in that: The distance between the point furthest from the mounting plane in the protrusion and the mounting plane is 3-8 mm, and the slope at the connection between the protrusion and the mounting plane is 70-90 degrees.

6. The anti-sticking travertine brick mold structure according to claim 1, characterized in that: It also includes a heating plate, which is connected to the side of the mold body away from the mounting plane, and the heating plate is used to heat the mold body.

7. The anti-sticking travertine brick mold structure according to claim 6, characterized in that: The heating plate has several heating oil channels inside, which are arranged parallel to the mounting plane at intervals. The two ends of the heating oil channels are connected to an external circulating oil supply mechanism.

8. A travertine brick mold structure for preventing powder sticking as described in claim 6 or 7, characterized in that: It also includes a heat insulation plate, which is connected to the side of the heating plate away from the mold body.

9. The anti-sticking travertine brick mold structure according to claim 1, characterized in that: It also includes a cleaning unit for cleaning the mounting surface and the protrusion.

10. The anti-sticking travertine brick mold structure according to claim 9, characterized in that: The cleaning unit includes a roller brush and a roller brush drive mechanism. The roller brush's rolling axis is parallel to the mounting plane. The roller brush is connected to the roller brush drive mechanism, which drives the roller brush to reciprocate parallel to the mounting plane. The roller brush drive mechanism also drives the roller brush to roll. The reciprocating movement and rolling of the roller brush are used to clean the mounting plane and the protrusion.

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