A multi-platform stepped fabric block pressing mold, system, and block

Abstract

This invention discloses a multi-platform stepped material block pressing mold, system, and block. The mold includes a bottom mold and a top mold. The bottom mold consists of multiple platforms with different step heights between adjacent platforms. Each platform forms several mold cavities. The lower part of the mold cavity of the upper platform is connected to the mold cavity of the adjacent lower platform. A platform partition is provided on the boundary line between adjacent platforms, and the platform partition is the side panel of the upper platform mold cavity. The top mold includes multiple sets of pressure plates corresponding to the multiple platforms. The pressure plate corresponding to each platform has a set height, and each set of pressure plates cooperates with the mold cavity on each platform. In the block forming process of this invention, the forming material is constrained by the mold cavity. During the pressing process, the protruding part does not collapse, and the density and appearance are consistent with the brick body. This invention can produce blocks with a surface height difference exceeding that of existing processes, and can manufacture block products that cannot be manufactured by existing technologies.

Description

Technical Field

[0001] This invention relates to block pressing and molding technology, and more particularly to a block pressing and molding mold, system, and block. Background Technology

[0002] Compared with concrete-cast retaining walls, blocks made from dry-mixed materials (containing very little water) can be used for retaining walls / slope protection. They are easy to construct on-site, and the large mass and interlocking structure of the bricks result in better stability of the retaining walls, leading to their increasingly widespread engineering applications.

[0003] Chinese patent document CN212763987U discloses a block forming technology. The existing protrusion forming process is as follows: the material is scraped by a stepped scraper, and then pressed and demolded by a top mold with a recess corresponding to the protrusion.

[0004] In the existing technology, due to the limitation of the material being piled up and collapsed, it is difficult to control the material according to the shape of the boss. At the same time, after the concave top mold is pressed, it is difficult to demold the top mold due to the adhesion of the material. The height of the block's protrusion is difficult to exceed 3cm. The surface of the protrusion is uneven, the density is poor, and it is easy to chip or break off the edges. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-platform stepped fabric block pressing molding die, system, and the resulting block, so as to break through the height limit of traditional protrusion pressing molding.

[0006] To address this, the present invention provides a block pressing mold, comprising a bottom mold and a top mold. The bottom mold consists of multiple platforms with adjacent platforms having different step heights. Each platform forms several mold cavities. The lower part of the mold cavity of the upper platform is connected to the mold cavity of the adjacent lower platform. The higher platform among the two adjacent platforms is the upper platform, and the lower platform is the lower platform. A platform partition is provided on the boundary line between the upper platform and the lower platform. The platform partition is the side panel of the mold cavity of the upper platform. The upper end of the platform partition is flush with the upper surface of the upper platform, and the lower end of the platform partition is lower than the upper surface of the lower platform and extends into it by a set distance. The top mold includes multiple sets of pressure plates corresponding to the multiple platforms. The top mold pressure plate corresponding to each platform has a set height, and each set of pressure plates cooperates with the mold cavity of each platform.

[0007] According to another aspect of the present invention, a block forming system is provided, comprising: a block pressing mold; a guide slide extending in the material feeding direction of the block pressing mold, the guide slide being coplanar with the upper surface of each platform and the platform partition; and a material feeding bin supported on the guide slide for holding the forming material, the top of which is open and the bottom of which is closed by the guide slide, wherein the material feeding bin is movable along the guide slide to the top of the bottom mold of the block pressing mold for feeding material into the mold cavity of the bottom mold and for scraping the forming material on each platform when it moves out of the top position of the bottom mold after feeding.

[0008] The present invention also provides a block made by a block pressing mold or a block forming system.

[0009] This invention employs a multi-platform stepped bottom mold for brick making. The top surface of the bottom mold is stepped, and each platform forms several cavities to receive the material. After the material is laid, a stepped material-laying plate scrapes it, followed by pressing and demolding. In the molding process of this invention, the protruding material (dry mix) is constrained by the mold cavities. During the pressing process, the protruding parts do not collapse, and the density and appearance are consistent with the brick body. This invention surpasses existing processes and can manufacture block products that cannot be produced by existing technologies.

[0010] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0011] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of a block pressing mold according to the first embodiment of the present invention;

[0013] Figure 2 yes Figure 1 A schematic diagram of the bottom mold of the block pressing and forming mold shown;

[0014] Figure 3 yes Figure 2 Sectional view of the bottom mold shown Figure 1 ;

[0015] Figure 4 yes Figure 2 Sectional view of the bottom mold shown Figure 2 ;

[0016] Figure 5 yes Figure 1 The blocks shown are produced by the block pressing mold.

[0017] Figure 6 This is a schematic diagram of the block forming system based on the block pressing and forming mold of the first embodiment of the present invention;

[0018] Figure 7 yes Figure 6 The diagram shows the material hopper moving to the top of the bottom mold in the block forming system.

[0019] Figure 8 yes Figure 7 The diagram shows a block forming system where the hopper is moved away from the top of the bottom mold and the top mold is pressed down.

[0020] Figure 9 yes Figure 8 A schematic diagram of the bottom mold lifting in the block forming system shown;

[0021] Figure 10 yes Figure 9 A schematic diagram of the top mold lifting in the block forming system shown;

[0022] Figure 11 This is a schematic diagram of the block pressing mold according to the second embodiment of the present invention;

[0023] Figure 12 This is a schematic diagram of the block forming system based on the block pressing and forming mold of the second embodiment of the present invention;

[0024] Figure 13 yes Figure 11 The blocks shown are produced by the block pressing mold.

[0025] Figure 14 This is a schematic diagram of the structure of a block pressing mold according to the third embodiment of the present invention;

[0026] Figure 15 This is a schematic diagram of the block forming system based on the block pressing and forming mold of the third embodiment of the present invention;

[0027] Figure 16 yes Figure 14 The blocks shown are produced by the block pressing mold.

[0028] Figure 17 This is a schematic diagram of the structure of a block pressing mold according to the fourth embodiment of the present invention;

[0029] Figure 18 This is a schematic diagram of the block forming system based on the block pressing and forming mold of the fourth embodiment of the present invention;

[0030] Figure 19 yes Figure 17 The blocks shown are produced by the block pressing mold.

[0031] Figure 20 This is a schematic diagram of the block pressing mold according to the fifth embodiment of the present invention;

[0032] Figure 21 This is a schematic diagram of the block forming system based on the block pressing and forming mold of the fifth embodiment of the present invention;

[0033] Figure 22 yes Figure 20 The blocks shown are produced by the block pressing mold. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] Figure 5 The invention illustrates a block to be pressed and formed according to an embodiment of the present invention. The block is tubular with a cavity in the middle. A protrusion 5a is formed on a portion of the tube wall at the top of the block. The height of the protrusion relative to the top surface of the tube wall is 5-8 cm.

[0036] Traditional block forming models include a bottom mold and a top mold. The bottom mold can be connected to the core mold via a connecting rod. This allows the bottom mold to produce tubular blocks with cavities during block forming. However, since the top surface of the existing bottom mold is flush, after the concrete is laid flat, the top mold cannot press to form a protrusion higher than 1 cm on the dry concrete surface.

[0037] Regarding the problem of forming protrusions on the top of blocks, the inventor has also mastered the prior art CN202021064997.4: the original flat scraper is changed to a stepped scraper. In this way, when the material is scraped flat on the top surface of the bottom mold, the material is left in a stepped shape. With the help of a specially made stepped top mold pressing down, the corresponding protrusions can be made. However, the protrusions made by this technology have size limitations, generally less than 3cm. If they are higher, the material will collapse when it is laid out, and the top mold will stick to the mold during demolding.

[0038] In this field, protrusions on blocks can serve as locking mechanisms, stabilizing the wall structure when building retaining walls or slopes. The height of the protrusion is a very important parameter; insufficient protrusion height will affect the locking function and weaken the stability of the wall.

[0039] The following describes the ability of the present invention to manufacture Figure 5 The molding process (molding mold, molding system, molding method) of the block 5 shown is explained.

[0040] This invention, based on the traditional block forming process, adjusts the structure of the block forming model to achieve the purpose of producing blocks with protrusions of predetermined height.

[0041] Combined with reference Figures 1 to 4 The block pressing mold of the present invention includes a bottom mold 1 and a top mold 2. The structure of the bottom mold and the top mold of the present invention has been improved according to the concept of a multi-platform.

[0042] This invention constructs two platforms, one high and one low, on the basis of the original bottom mold structure, namely the first platform 11 and the second platform 12. These two platforms are stepped, and each platform has the same width and extends horizontally in a straight line in the fabric / scraping direction. The second platform 12 has a stepped height relative to the first platform 11. The first platform forms an independent mold cavity 11a, and the second platform forms an independent mold cavity 12a. The mold cavity 12a of the second platform is laterally connected to the mold cavity 11a of the first platform.

[0043] Among them, the side of the mold cavity of the second platform 12 is a platform partition 13. The platform partition 13 extends into the second mold cavity 12a, is lower than the upper surface of the first platform, and extends a set distance. The mold cavities 11a and 12a of the two adjacent platforms are connected in the part below the platform partition.

[0044] In this embodiment, the bottom mold includes a core mold 14 and a core mold connecting rod 15. The core mold 14 is independent of the bottom mold cavity. A part of the core mold 14 is located in the first platform and another part is located in the second platform. The top surfaces 14a and 14b of the core mold 14 located in each platform are flush with the platform they are located on.

[0045] The core mold connecting rod 15 is located at the upper end of the core mold 14, connecting the core mold 14 to the bottom mold body. The top end (top edge) of the core mold connecting rod 15 is flush with the platform, and the bottom end (bottom edge) is lower than the upper surface of the platform and extends into a set distance. The lower end of the platform partition 13 is flush with the bottom end of the core mold connecting rod 15 and also serves as the core mold connecting rod.

[0046] The core mold 14 is connected to the bottom mold body via a combination of the core mold connecting rod 15 and the platform partition 13. See other embodiments. Figure 14 and Figure 15 The core mold 14 is connected to the bottom mold body or other core molds only through the platform partition. Alternatively, the core mold 14 can be connected to the bottom mold body or other core molds via a conventional core mold connecting rod 15.

[0047] In this invention, the higher platform among two adjacent platforms is defined as the upper platform and the lower platform as the lower platform.

[0048] The distance by which the platform partition 13 extends into the mold cavity can be set with reference to the core mold connecting rod 15. The core mold connecting rod is a rod / plate used to connect the core mold and the bottom mold body. On the block with a central through hole, there will be a shallow pressure groove on the top surface of the block. This pressure groove is formed by the core mold connecting rod. Specifically, the lower end of the platform partition is flush with the bottom end of the core mold connecting rod, thus forming a pressure groove as well.

[0049] The portion of the mold cavity 11a constrained by the platform partition 13 on the first platform is used to form the protrusion. At this time, the forming material used to form the protrusion is constrained by the mold cavity. After the fabric is flattened, it is constrained by the mold cavity, and the forming fabric will not collapse.

[0050] The top mold 2 consists of two sets of pressure plates (first set of pressure plates 21 and second set of pressure plates 22) corresponding one-to-one with the two platforms. The first set of pressure plates 21 on the first platform 11 are arranged at the same height and have the same first pressure stroke S1. The second set of pressure plates 22 on the second platform 12 are arranged at the same height and have the same second pressure stroke S2. The first pressure stroke S1 and the second pressure stroke S2 ​​are calculated based on the shape data of the block (block body thickness h1, thickness h2 at the protrusion location) and the compaction ratio β (mold cavity thickness H / block thickness h, β is greater than 1, for example 1.3). The calculation formula is: S1=H1-h1=h1*β-h1; S2=H2-h2=h2*β-h2, where the pressure stroke is the pressure plate travel from the position where the pressure plate starts to press against the mold cavity to the final compaction position, H1 is the mold cavity thickness of the first platform, and H2 is the mold cavity thickness of the second platform.

[0051] Based on the aforementioned block pressing and molding mold, this invention also proposes a block forming system, in conjunction with reference to... Figures 6 to 4 It includes a bottom mold 1, a top mold 2, a guide slide 3, and a fabric bin 4.

[0052] The block pressing mold of the present invention is designed according to the structural shape of the block, and is mainly for blocks with protrusions on the top.

[0053] The guide slide plate 3 extends in the material feeding direction of the block pressing mold, allowing the material feeding bin 4 to be supported on it and move from the feeding position to the material feeding position. At the same time, the bottom of the material feeding bin 4 is sealed to prevent leakage of the molding material.

[0054] The material storage bin 4 is supported on the guide slide plate 3 and is used to hold the molding material. Its bottom is open and closed by the guide slide plate 3. The material storage bin 4 can move along the guide slide plate to the top of the bottom mold 1 and form a material storage cavity at the top of the bottom mold 1. At this time, the front wall 41 of the material storage bin 4 forms a scraper with stepped notches, which matches the shape of the multiple platforms of the bottom mold, so that the molding material on each platform can be scraped flat during the movement.

[0055] The shape of the rear wall 42 of the fabric bin 4 can be the same as that of the front wall, so that the bottom of the fabric bin is stepped. The installation position of the mixing mechanism inside the fabric bin is determined according to the shape of the fabric slide guide rail to avoid interference with the movement of the stepped guide rail slide. At this time, the guide rail slider is stepped to seal the bottom of the fabric bin, so that the fabric bin can carry the molding material and move on the guide rail slider.

[0056] In the block forming system of this invention, the guide slide, the material bin, and the block pressing mold all adopt a multi-platform stepped design, so as to make full use of existing brick forming equipment and technology.

[0057] Based on the above-mentioned block forming system, the present invention also proposes a block forming method, in conjunction with reference to... Figures 6 to 10 It includes the following steps S1-S5.

[0058] S1. On the guide slide plate 3, at a position away from the bottom mold 1, add molding material (not shown) to the fabric bin 4, such as... Figure 6 As shown.

[0059] S2. Move the fabric bin 4 containing the molding material along the guide slide 3 to the top of the bottom mold 1, and vibrate the fabric into the bottom mold cavity. Figure 7 As shown.

[0060] S3. Move the vibrating cloth bin 4 along the guide rail slide to a position away from the bottom mold 1. At the same time, the front wall 41 of the cloth bin 4 scrapes the various platforms of the bottom mold 1 and takes away the excess molding material.

[0061] S4. The top mold 2 compacts and shapes the molding material in each cavity of the bottom mold 1. Steps S3 and S4 are performed in... Figure 8 As shown in the image.

[0062] S5. While keeping the top mold stationary, first lift the bottom mold to detach it from the forming block, such as... Figure 9 As shown, then lift the top mold to separate the top mold 2 from the formed block 5, as shown. Figure 10 As shown.

[0063] In step S1, the amount of molding material added to the fabric bin is sufficient to meet the requirements for brick forming, with a certain margin, so that the platform at the highest position on the bottom mold can be filled and slightly exceeded.

[0064] In step S2, the guide slide plate transitions flush with the bottom mold, that is, the stepped surface on the bottom mold transitions flush with the stepped surface of the guide slide plate, and the fabric bin smoothly transitions to the bottom mold through the guide slide plate.

[0065] In step S3, the fabric bin is scraped flat on the bottom mold while moving out of the fabric position. In step S5, the top mold and bottom mold cooperate smoothly to demold. These two steps are the essence of the block pressing and molding process, and this invention fully inherits them.

[0066] In step S4, there are two options for the top mold to compact and form each cavity of the bottom mold:

[0067] 1. Arrange the pressure plates of each platform according to the step height (h1, h2, h3...) of the final formed block, and press them down simultaneously;

[0068] Second, the pressing processes of the pressing plates on each platform are independently controlled, so that each pressing plate starts to press against the top surface of the corresponding mold cavity at the same time, and then each presses to the required brick surface height. Preferably, the pressing plates on each platform press to the required brick surface height at the same time.

[0069] The above shows a block forming method that can make the most of the existing brick pressing technical equipment. For the block pressing and forming mold according to the present invention, other cloth feeding / scraping methods are also allowed, such as manual or robotic cloth feeding / scraping at the mold placement position.

[0070] Figure 11 and Figure 12 shows Figure 13 the block pressing and forming mold and block forming system for making the "IE" block shown. The block includes bumps connecting the "I" side entity and the "E" side entity. The mold includes four platforms arranged in a high-low-high-low pattern, namely the first platform 11, the second platform 12, the third platform 1a, and the fourth platform 1b.

[0071] Figure 14 and Figure 15 shows Figure 16 the block pressing and forming mold and block forming system for making the "field" block shown. The block is in the shape of a Chinese character "field", and the mold includes five platforms arranged in a low-high-low-high-low pattern, namely the first platform 11, the second platform 12, the third platform 1a, the fourth platform 1b, and the fifth platform 1c.

[0072] Figure 17 and Figure 18 shows Figure 19 the block pressing and forming model and block forming system for making the block shown. The block has front and rear bumps respectively provided on the left and right rib walls. The mold includes five platforms arranged in a low-high-low-high-low pattern, namely the first platform 11, the second platform 12, the third platform 1a, the fourth platform 1b, and the fifth platform 1c.

[0073] In Figures 11 to 19 the block forming systems of the three embodiments shown, a high-low layout is adopted between multiple platforms. In other embodiments, a stepped-up, stepped-down, or combined layout can also be adopted for multiple platforms.

[0074] In Figures 11 to 19 the block forming systems of the four embodiments shown, the two mold cavities on the same platform are isolated and not connected to each other. In the case of making blind holes, the adjacent bumps on the same platform can be connected at the lower part.

[0075] In the process of further developing the block pressing and forming mold of the present invention, the inventor found that: in addition to making the bump 5a, the block pressing and forming mold of the present invention also has other uses, such as making Figures 20 to 22 Step 5b is shown.

[0076] Figure 20 and Figure 21 The production process was shown. Figure 22 The block shown is a block pressing molding model and a block molding system, which are related to the block. Figure 13 The difference with the “IE” block shown is that the mold includes four platforms arranged in a high-low-high-low pattern, with the heights of the two high platforms being inconsistent, and the first high platform forming a single step rather than a separate protrusion.

[0077] In various embodiments of the present invention, the protrusions and steps are collectively referred to as protruding parts. The height of the protruding parts is determined by the size of each platform mold. The lower parts of each platform mold are connected, and the upper parts are separated by platform partitions or core molds. The bottom mold opening technique is consistent with the prior art. The top mold pressing of each platform has varying heights, which is consistent with the prior art. In addition, the brick machine used in the implementation method can follow the existing technology or be simply adapted. These technologies are well known to those skilled in the art and will not be described in detail here.

[0078] As can be seen from the foregoing embodiments, the bottom mold of the block pressing mold of the present invention is composed of multiple platforms. The number of platforms is unlimited, but each platform extends in the same direction, that is, it extends in a straight line along the scraping direction, and the width in the extension direction must be consistent.

[0079] In addition, each platform forms several independent mold cavities, with the lower part of the mold cavity of the upper platform connected to the mold cavity of the adjacent lower platform. Furthermore, the mold cavity partition of the upper platform can be used as a core mold connecting rod.

[0080] If the mold cavity of the upper platform forms multiple bosses, and the bottoms of the multiple mold cavities on the same upper platform can be independent and not connected to each other or connected, the top surface of the bosses or steps formed on the same upper platform can be flat or have a height undulation of less than 3cm (made using existing technology).

[0081] In addition, the top mold includes multiple sets of pressure plates that correspond one-to-one with the multiple platforms. Each set of pressure plates cooperates with the mold cavity on each platform, and all pressure plates complete the pressing action at the same time.

[0082] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A block pressing forming die comprising a bottom die and a top die, characterized in that, the bottom die is composed of multiple platforms, adjacent two platforms have different step heights, each platform forms a plurality of cavities, the lower part of the cavity of the upper platform is communicated with the cavity of the adjacent lower platform, the higher platform of the two adjacent platforms is the upper platform, and the lower platform is the lower platform, a platform partition is arranged on the boundary line between the upper platform and the lower platform, the platform partition is a side panel of the cavity of the upper platform, the upper end of the platform partition is flush with the upper surface of the upper platform, and the lower end of the platform partition is lower than the upper surface of the lower platform and extends into a set distance, the top die comprises a plurality of groups of pressing plates corresponding to the multiple platforms, the corresponding pressing plate of each platform has a set height, and each group of pressing plates is matched with the cavities on each platform one by one, the cavity of the upper platform constrained by the platform partition forms one or more protrusions higher than the lower platform during block pressing forming.

2. The block press molding die according to claim 1, wherein The extension direction of each platform in the multiple platforms is the same as the feeding direction, and the same platform extends horizontally and linearly in the extension direction.

3. The block press molding die according to claim 1, wherein The bottom die comprises a core die, the platform partition functions as a core die connecting rod, and the core die is connected with the bottom die body and / or other core dies only through the platform partition, only through the core die connecting rod, or through the combination of the platform partition and the core die connecting rod.

4. The block press molding die according to claim 3, wherein The core die is located in the multiple platforms, and the top surface of the core die is flush with the upper surface of the platform where the core die is located.

5. A block forming system, characterised in that, Comprise: the block pressing forming die according to any one of claims 1 to 4; a guide rail slide plate located below the feeding bin, extending in the feeding direction, flushly butted against the multiple platforms, and coplanar with the upper surfaces of the platforms and the platform partitions; a feeding bin supported on the guide rail slide plate, used for containing forming material, the top of the feeding bin is open, and the bottom of the feeding bin is closed by the guide rail slide plate, wherein the feeding bin can be moved to the top of the bottom die of the block pressing forming die along the guide rail slide plate, used for feeding the cavities of the bottom die and scraping the forming material on each platform when moving out of the top of the bottom die after feeding.

6. The block forming system of claim 5, wherein, An opening with the same cross-sectional shape as the guide rail slide plate is arranged on the front and rear bin walls of the feeding bin in the feeding direction. 7.A block made of the block pressing forming die according to any one of claims 1 to 4. 8.A block made of the block forming system according to claim 5 or 6. 9.The block according to claim 8, wherein the block forming method comprises the following steps: S1, the feeding bin is located away from the bottom die on the guide rail slide plate, and the forming material is added into the feeding bin; S2, the feeding bin containing the forming material is moved to the top of the bottom die along the guide rail slide plate, and the cavities of the bottom die are fed; S3, the feeding bin after vibration feeding is moved to the initial position along the guide rail slide plate, and at the same time, the feeding bin scrapes each platform of the bottom die and removes the excess forming material; S4, the top die vibrates and compacts the forming material in each cavity of the bottom die; S5, the bottom die is first lifted upwards, the bottom die is separated from the formed block, and then the top die is lifted upwards, the top die is separated from the formed block.

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