Hollow block pressing die capable of controlling water content
The modular air brick molding system addresses the challenge of controlling water content in brick manufacturing by efficiently draining excess water, improving brick quality and reducing costs through a filter-equipped drainage system.
Patent Information
- Application Number
- CN202422650091.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In the manufacturing of existing hollow blocks, improper moisture content control results in the failure to fully utilize the strength of hydraulic cementitious materials, affecting the molding quality and increasing production costs.
A hollow block pressing mold that can control moisture content is designed, adopting a water permeable hole and filter membrane structure, combining the splicing notch and boss design of the mold core and lower mold to achieve rapid discharge and stable molding.
By quickly discharging excess water, reducing pore water pressure, improving molding quality, reducing production losses, and achieving effective application of materials with different moisture content.
Smart Images
Figure CN223099508U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hollow brick moulds, in particular to a hollow building block pressing mould capable of controlling moisture content. Background Art
[0002] Concrete hollow blocks are block materials with a certain hollow ratio, which are made of cement as the main cementitious material, sand and gravel or construction solid waste as coarse and fine aggregates, and are made by measuring ingredients, adding water and mixing, vibrating and pressurizing, and curing. Concrete hollow blocks are suitable for various buildings in areas with a design earthquake intensity of 8 degrees or less, including high-rise and large-span buildings. They can also be used for municipal facilities such as walls, retaining walls, bridges and flower beds. More importantly, with the country's strong advocacy of prefabricated buildings and green buildings, the application of concrete hollow blocks in prefabricated concrete block masonry buildings will surely be more extensive.
[0003] The existing hollow block manufacturing method usually adopts the process of dry material vibration pressure molding, which uses extremely high vibration pressure to compact the material in the mold to obtain strength. During the pressing process, due to the high fluidity of the raw materials with excessive moisture content, the internal water pressure is relatively large when squeezed, which affects the quality of the block molding. Therefore, the moisture content in the raw materials is usually strictly controlled to ensure the molding effect. Under this technical background, the moisture content in the raw materials is insufficient, and the strength of the hydraulic cementitious material cannot be fully exerted, resulting in material waste and not conducive to controlling production costs. Utility Model Content
[0004] The utility model aims to solve the technical problems existing in the prior art, and particularly innovatively proposes a hollow building block pressing mold capable of controlling the moisture content, so as to discharge the excess moisture as much as possible.
[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a hollow building block pressing mold with controllable moisture content, including an upper mold, a lower mold and a mold core, the mold core is hollow and has an opening at the bottom, a water-permeable hole is opened on the side wall of the mold core near the bottom, a splicing notch is recessed on one side of each cavity of the lower mold, the splicing notch is connected up and down, a splicing boss is arranged on the side of the cavity opposite to the splicing notch, the splicing boss is arranged corresponding to the splicing notch, so as to form a splicable hollow building block.
[0006] In the above scheme: each side wall of the mold core is provided with a water-permeable hole to improve the water permeability efficiency and to discharge the excess water in the building block as quickly as possible.
[0007] In the above scheme: a filter membrane that only allows water to penetrate is arranged on the water-permeable hole, which can prevent concrete from flowing out of the water-permeable hole as much as possible and avoid affecting the forming of the block during the upper mold pressing process.
[0008] In the above scheme, the mold cavity is rectangular, and the splicing boss and the splicing notch are respectively arranged on the two side walls of the mold cavity that are farthest from each other, so that a building block spliced end to end can be formed, and the arrangement is reasonable.
[0009] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are: using the holes on the side wall of the lower mold to discharge excess water in the block, and controlling the optimal water content ratio. At the same time, it can reduce the pore water pressure inside the block, so that the stress release during demoulding is smoother, reduce the block production loss rate, and can apply materials with different moisture contents to the production of hollow blocks. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0011] Figure 1 It is a schematic diagram of the utility model.
[0012] Figure 2 It is a top view of the lower mold and the mold core.
[0013] Figure 3 It is a schematic diagram of the mold core. DETAILED DESCRIPTION
[0014] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0015] like Figures 1 to 3 As shown, a hollow block pressing mold with controllable moisture content includes an upper mold 1, a lower mold 2 and a core 3. A plurality of cavities 2a are arranged in a matrix on the lower mold 2, and the top of the core 3 is fixed to the inner wall of the cavity 2a by connecting ribs. The core 3 is hollow and has an opening at the bottom. A water-permeable hole 3a is arranged on each side wall of the core 3 to improve the water permeability efficiency and to discharge excess water in the block as soon as possible. The water-permeable hole 3a is arranged close to the bottom of the core 3, and a layer of filter membrane that can only allow water to penetrate is arranged on the water-permeable hole 3a, which can prevent concrete from flowing out of the water-permeable hole 3a as much as possible, and avoid affecting the forming of the block during the pressing process of the upper mold 1.
[0016] On one side of each cavity 2a of the lower mold 2, a splicing notch 2b is recessed, and the splicing notch 2b penetrates up and down. On the side of the cavity 2a opposite to the splicing notch 2b, a splicing boss 2c is provided, and the splicing boss 2c is correspondingly arranged with the splicing notch 2b so as to form a splicable hollow block. Among them, the cavity 2a is rectangular, and the splicing boss 2c and the splicing notch 2b are respectively arranged on the two side walls of the cavity 2a with the farthest distance. Blocks that can be butt-jointed end to end can be formed, and the setting is reasonable.
Claims
1. A hollow block pressing mold capable of controlling moisture content, comprising an upper mold (1), a lower mold (2) and a mold core (3), characterized in that: The mold core (3) is hollow and has an opening at the bottom. A water permeable hole (3a) is provided on the side wall of the mold core (3) near the bottom. A splicing notch (2b) is recessed on one side in each cavity (2a) of the lower mold (2). The splicing notch (2b) penetrates up and down. A splicing boss (2c) is provided on the side of the cavity (2a) opposite to the splicing notch (2b). The splicing boss (2c) is arranged corresponding to the splicing notch (2b) so as to form a splicable hollow block.
2. The hollow block pressing die capable of controlling moisture content according to claim 1, wherein: A water permeable hole (3a) is provided on each side wall of the mold core (3).
3. The hollow block pressing die capable of controlling moisture content according to claim 2, characterized in that: A filtering membrane that only allows water to penetrate is provided on the water permeable hole (3a).
4. A hollow block pressing mold capable of controlling the moisture content according to claim 1, characterized in that: The cavity (2a) is rectangular. The splicing boss (2c) and the splicing notch (2b) are respectively provided on the two side walls of the cavity (2a) with the farthest distance.