Quickly assembled and disassembled bottom die for concrete product interface forming

Abstract

The utility model relates to a quick assembly and disassembly type bottom die for concrete product connector forming. The quick assembly and disassembly type bottom die comprises a forming ring piece and a bottom support flange. The number of the forming ring pieces is multiple, and the multiple forming ring pieces are sequentially connected to form a whole circular ring. A forming protrusion is arranged on the inner side of the forming ring piece, a connecting base extending towards the outer side of the forming ring piece is arranged at the bottom of the forming ring piece, and a connecting base bolt hole is formed in the connecting base. Bottom support flange bolt holes matched with the connecting seat bolt holes are formed in the bottom support flange; and connecting screws are further arranged, and the connecting screws are screwed into the connecting base bolt holes and the bottom support flange bolt holes, so that the multiple forming ring pieces are fixed to the bottom support flange. According to the utility model, the bottom die is fast to assemble and convenient to disassemble and assemble, the molded appearance of a concrete product is regular, the phenomena of unfilled corners and the like are avoided, the production efficiency is improved, and the finished product qualification rate of the concrete product is greatly improved.

Description

Technical Field

[0001] This utility model relates to a quick-assembly and disassembly bottom mold for interface molding of concrete products, belonging to the technical field of quick-assembly and disassembly bottom mold design for vibration molding of concrete drainage pipe core mold. Background Technology

[0002] Concrete and reinforced concrete pipes have unique advantages such as high resistance to external pressure, good durability, long service life, easy manufacturing, low production cost, and low price. They are widely used in urban construction, industrial and mining enterprise construction, and farmland water conservancy construction in my country for laying drainage pipes, achieving good economic and social benefits.

[0003] A core mold vibration pipe-making machine is used in the production of concrete and reinforced concrete pipes. This machine employs a core mold vibration method to produce concrete and reinforced concrete pipes. Its principle is as follows: the core mold vibration pipe-making machine works in conjunction with a core mold, which consists of an inner mold, an outer mold, a bottom mold, and a pressure cap. Inside the core mold vibration pipe-making machine, a vibrator that generates high-frequency vibrations is connected to the inner mold. The outer mold is suspended and mounted on the main machine base. The bottom mold is clamped below the outer mold by a clamping mechanism. As the concrete layer between the inner and outer molds rises, the pre-mixed concrete in the pipe wall vibrates synchronously under the vibration force of the vibrator, causing the aggregate particles such as sand and gravel to vibrate synchronously. This results in maximum compaction of the concrete in a short time, producing concrete drainage pipe products. During molding, the inner mold vibrates, transmitted by the vibrator, and pressure is applied at the top through the pressure cap, further compacting the concrete at the socket. The bottom mold and pressure cap also function as product interface forming devices.

[0004] Because steel-socketed concrete pipe products have a circumferential groove at the spigot end to accommodate a rubber sealing ring, currently, when producing steel-socketed pipe products using core mold vibration molds, the steel ring is circumferentially fixed to the forming ring of the bottom mold with screws for easy demolding (i.e., removing the concrete product from the bottom mold after processing). This not only results in inaccurate circumferential height positioning and cumbersome screw installation, but also, because the larger the diameter, the longer the circumference of the steel ring. Even with segmented installation, this requires a large number of screws, is time-consuming, and the steel ring is prone to deformation and twisting after long-term use, causing installation difficulties. Demolding requires first removing the outer mold, and only after the concrete product has cured to a certain strength can the screws fixing the circumferential steel ring be loosened. The concrete product is then lifted by a crane to remove the bottom mold, and then the steel ring is pried off the product. This easily leads to chipped corners in the product and does not effectively improve the utilization rate of the base support. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems by providing a quick-assembly and disassembly bottom mold for interface molding of concrete products.

[0006] To achieve the above-mentioned utility model objectives, the technical solution adopted by this utility model is as follows: A quick-assembly and disassembly bottom mold for interface molding of concrete products includes forming ring pieces and a bottom support flange; the number of forming ring pieces is several pieces, and the several forming ring pieces are connected in sequence to form an integral ring; the inner side of the forming ring piece is provided with forming protrusions, and the bottom of the forming ring piece is provided with a connecting seat extending outward from the forming ring piece, and the connecting seat is provided with connecting seat bolt holes; the bottom support flange is provided with bottom support flange bolt holes that match the connecting seat bolt holes; a connecting screw is also provided, and the connecting screw is tightened into the connecting seat bolt holes and the bottom support flange bolt holes, so that the several forming ring pieces are fixed to the bottom support flange.

[0007] The number of the formed ring pieces is 3.

[0008] The bottom flange is provided with a lower positioning step, and the forming ring is provided with an upper positioning step. When the forming ring is placed on the bottom flange, the upper positioning step of the forming ring fits against the lower positioning step of the bottom flange, and the connecting screws are tightened into the bolt holes of the connecting seat and the bolt holes of the bottom flange, so that several forming rings are fixed to the bottom flange.

[0009] This utility model has a reasonable structure. In use, after the processed concrete product needs to be removed from the bottom mold, the connecting screws are unscrewed, and several forming rings are removed from the bottom flange. At this point, because the groove at the spigot end of the steel socket concrete pipe product is no longer restricted by the forming protrusions on the forming rings, the concrete product can be removed from the bottom mold. Compared to previous disassembly structures, this is more reasonable and avoids the phenomenon of missing corners in the product.

[0010] In this invention, a lower positioning step is provided on the bottom support flange, and an upper positioning step is provided on the forming ring piece; thus, when the forming ring piece is placed on the bottom support flange, the upper positioning step of the forming ring piece fits against the lower positioning step of the bottom support flange, and the connecting screws are tightened into the bolt holes of the connecting seat and the bolt holes of the bottom support flange, so that several forming ring pieces are fixed to the bottom support flange, which facilitates the positioning of the forming ring pieces on the bottom support flange and avoids deviation in the installation position.

[0011] In this invention, the quick-assembly and disassembly bottom mold for spigot forming is divided into upper and lower parts: an upper forming ring and a lower bottom support flange. The lower end of the forming ring has an upper positioning step that matches the lower positioning step of the bottom support flange, ensuring the diameter of the forming ring when assembled into a complete circle. Each piece of the forming ring needs only three screws to be fixed to the bottom support flange at the flange position. The connecting screws are vertically installed, making the installation position intuitive and convenient. After the forming ring is fixed to the bottom support flange, it forms an integral forming ring. The forming ring part is located inside the outer mold of the existing core mold vibration tube making machine. The outer mold clamping device clamps the flange position of the integral forming ring. When demolding the product, after releasing the outer mold clamping device, the connecting screws on the forming ring and the bottom support flange are exposed. Loosening the connecting screws allows the forming ring to be directly removed piece by piece. The product can be placed on the bottom support flange for curing. The removed forming ring can be installed on another bottom support flange for the next production, greatly improving the turnover rate of the spigot steel ring and thus reducing the customer's investment cost.

[0012] This invention enables rapid assembly and disassembly of the bottom mold, resulting in well-formed concrete products without missing corners. This not only improves production efficiency but also significantly increases the finished product qualification rate of concrete products. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 yes Figure 1 A larger image is shown in section A;

[0015] Figure 3 This is a schematic diagram of the structure of the formed ring piece in this utility model;

[0016] Figure 4 This is a structural schematic diagram of the bottom flange part in this utility model;

[0017] In the diagram: 1. Molded ring, 2. Bottom flange, 3. Connecting screw, 4. Molded protrusion, 5. Connecting seat, 6. Connecting seat bolt hole, 7. Bottom flange bolt hole, 8. Lower positioning step, 9. Upper positioning step. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and descriptions.

[0019] A quick-assembly and disassembly bottom mold for interface molding of concrete products includes forming ring pieces 1 and bottom support flange 2. The number of forming ring pieces 1 is several pieces, and the several forming ring pieces 2 are connected in sequence to form an integral ring. A forming protrusion 4 is provided on the inner side of the forming ring piece 1, and a connecting seat 5 extending outward from the bottom of the forming ring piece 1 is provided. The connecting seat 5 is provided with connecting seat bolt holes 6. Bottom support flange 2 is provided with bottom support flange bolt holes 7 that match the connecting seat bolt holes. Connecting screws 3 are also provided. The connecting screws 3 are tightened into the connecting seat bolt holes and the bottom support flange bolt holes, so that the several forming ring pieces 1 are fixed to the bottom support flange 2.

[0020] Furthermore, the number of forming ring pieces 1 is 3. A lower positioning step 8 is provided on the bottom support flange 2, and an upper positioning step 9 is provided on the forming ring piece 1; when the forming ring piece 1 is placed on the bottom support flange 2, the upper positioning step 9 of the forming ring piece 1 fits against the lower positioning step 8 of the bottom support flange 2, and the connecting screws 3 are tightened into the bolt holes 6 of the connecting seat and the bolt holes 7 of the bottom support flange, so that several forming ring pieces 1 are fixed to the bottom support flange 2.

Claims

1. A quick-assembly and disassembly bottom mold for interface molding of concrete products, comprising a molding ring (1) and a bottom support flange (2); characterized in that: The number of the forming ring pieces (1) is several pieces, and the several forming ring pieces (1) are connected in sequence to form an integral ring; the inner side of the forming ring piece (1) is provided with forming protrusions (4), and the bottom of the forming ring piece (1) is provided with a connecting seat (5) extending outward from the forming ring piece (1), and the connecting seat (5) is provided with connecting seat bolt holes (6); the bottom support flange (2) is provided with bottom support flange bolt holes (7) that match the connecting seat bolt holes; a connecting screw (3) is also provided, and the connecting screw (3) is tightened into the connecting seat bolt holes and the bottom support flange bolt holes, so that the several forming ring pieces (1) are fixed to the bottom support flange (2).

2. The quick-assembly and disassembly bottom mold for interface molding of concrete products according to claim 1, characterized in that: The number of the molded ring pieces (1) is 3.

3. A quick-assembly and disassembly bottom mold for interface molding of concrete products according to claim 1, characterized in that: The bottom flange (2) is provided with a lower positioning step (8), and the forming ring (1) is provided with an upper positioning step (9). When the forming ring (1) is placed on the bottom flange (2), the upper positioning step (9) of the forming ring (1) fits against the lower positioning step (8) of the bottom flange (2), and the connecting screw (3) is tightened into the bolt hole (6) of the connecting seat and the bolt hole (7) of the bottom flange, so that several forming rings (1) are fixed to the bottom flange (2).

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