Cushion block manufacturing mold and cushion block

Abstract

The present invention relates to a cushion block manufacturing mold, comprising a bottom mold, a core mold and a side mold, wherein a plurality of mold platforms are arranged on the bottom mold; an upper platform groove is arranged at the center of the mold platform; a top column groove is arranged at the bottom of the upper platform groove, and the depth of the top column groove is the thickness of the protective layer on the floor slab; the height of the core mold is the spacing between the upper and lower layers of steel bars minus the depth of the upper platform groove, a column hole is arranged at the center of the core mold, the core mold is installed on the mold platform, and the column hole is coaxial with the upper platform groove; the side mold is a cylinder, the top of the side mold is higher than the top of the core mold, and the height difference is the thickness of the protective layer under the floor slab. The cushion block manufactured by this mold comprises a lower platform and an upper platform, the thickness of the lower platform is equal to the thickness of the protective layer under the floor slab, the lower platform is connected to the upper platform through a column, a top column is arranged at the center of the upper platform, and the height difference from the upper platform to the top surface of the top column is the thickness of the protective layer on the floor slab. This scheme can manufacture concrete cushion blocks in batches, and the mold closing and demoulding operations are simple, the construction speed is fast, the cushion blocks are beautifully formed, and the time cost and material cost in construction are effectively saved.

Description

Technical Field

[0001] The invention relates to a cushion block for floor slab construction, in particular to a manufacturing mould of the cushion block and a cushion block for fixing floor slab steel bars and controlling the thickness of a protective layer at the same time. Background Art

[0002] At present, the main technical difficulties in the construction of cast-in-place floor slabs in construction projects are the arrangement of steel reinforcement layers and the control of floor slab thickness. For the arrangement of reinforcement, the existing practice generally uses reinforcement pads to support the height of the upper and lower layers of reinforcement. The lower part of the pad is designed to be a platform or arc groove for placing the lower layer of reinforcement, and the top is designed as a platform or arc groove under the top layer of reinforcement. Because of the stabilization of the reinforcement, the shape of the pad is mostly equipped with many notches, inclined grooves, etc., and the structure of the mold is very complicated during production, making it difficult to demould.

[0003] For the construction of floor thickness control, there are two main existing practices: one is to choose other reference objects or detection tools, such as directly inserting reinforcement on the column, using detection tools to measure the elevation on the reference reinforcement and mark it, and using simple floor thickness detection tools; the other is to use prefabricated blocks with self-tapping steel nails. The height of the prefabricated blocks is the same as the thickness of the floor. The prefabricated blocks are fixed to the formwork with self-tapping nails to support and plan the thickness of the floor. The first method mentioned above has a series of problems such as difficulty in leveling and poor construction accuracy. If the self-tapping nails of the second method are rusted, they need to be rusted and modified, which is labor-intensive. In addition, the self-tapping nail prefabricated blocks are not applicable to the currently popular aluminum formwork construction. Summary of the invention

[0004] The present invention aims to solve the problem of inconvenient manufacturing of pads in the prior art and the problem of difficult control of floor slab thickness.

[0005] In order to solve the above technical problems, the solution proposed by the present invention is:

[0006] A cushion block manufacturing mold comprises a bottom mold, a core mold and a side mold, wherein a plurality of mold platforms are arranged on the bottom mold; an upper platform groove is arranged at the center of the mold platform; a top column groove is arranged at the bottom of the upper platform groove, and the depth of the top column groove is the thickness of the protective layer on the floor slab; the height of the core mold is the spacing between the upper and lower layers of steel bars minus the depth of the upper platform groove, a column hole is arranged at the center of the core mold, the core mold is installed on the mold platform, and the column hole is coaxial with the upper platform groove; the side mold is a cylinder, the top of the side mold is higher than the top of the core mold, and the height difference is the thickness of the protective layer under the floor slab.

[0007] This pad production mold can be used to produce concrete pads in batches. The mold closing and demoulding operations are simple, the construction speed is fast, the pads are beautifully formed, and the time and material costs in construction are effectively saved.

[0008] The core mold consists of a left half ring and a right half ring divided by a central axis.

[0009] The bottom mold is composed of a mold base and a base. The base is a flat plate. The mold base is evenly fixed on the flat plate. The mold base has a circumferential diameter equal to that of the core mold and matches the side mold. The side mold is mounted outside the core mold and the mold base.

[0010] The bottom mold is composed of a mold base and a base. The mold base is a circular slot evenly arranged on the base. The side mold is mounted outside the core mold.

[0011] A limiting rib is arranged on the periphery of the top of the mold platform, a limiting groove is arranged on the periphery of the bottom of the core mold, and the limiting rib and the limiting groove are spliced.

[0012] The lower part of the column hole of the core mold is tapered.

[0013] The pad block made by the above mold includes a lower platform and an upper platform. The thickness of the lower platform is equal to the thickness of the protective layer under the floor slab. The lower platform and the upper platform are connected by columns. A top column is set in the center of the upper platform. The height difference from the upper platform to the top surface of the top column is the thickness of the protective layer on the floor slab.

[0014] This pad can not only support the upper and lower layers of steel bars on the floor slab, but also serve as a construction reference on the upper and lower surfaces of the floor slab, making the thickness control of the floor slab more precise and effectively improving the construction quality of the upper protective layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top view of the bottom mold structure;

[0016] Figure 2 It is a cross-sectional view of the bottom mold of mold embodiment 1 along line AA;

[0017] Figure 3 This is a schematic diagram of mold closing of mold embodiment 1;

[0018] Figure 4 It is a cross-sectional view of the bottom mold along line AA of mold embodiment 2;

[0019] Figure 5 This is a schematic diagram of mold closing in mold embodiment 2;

[0020] Figure 6 It is a schematic diagram of the casting cavity of a single pad;

[0021] Figure 7 Schematic diagram of the core mold structure;

[0022] Figure 8 A schematic diagram of the pad and its construction.

[0023] Description of reference numerals:

[0024] Bottom mold 1, base 1-1, mold platform 1-2, upper platform groove 101, top column groove 102, limiting rib 103;

[0025] Core mold 2, column hole 201, column hole lower part 202, limiting groove 203;

[0026] Side formwork 3, lower platform 4, column 5, upper platform 6, top column 7, lower steel bars 81, upper steel bars 82, lower protective layer 9, upper protective layer 10. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0028] Reference Figures 1 to 8 As shown, a mold for making a cushion block comprises a bottom mold 1, a core mold 2 and a side mold 3, wherein the bottom mold 1 is provided with a plurality of mold platforms 1-2; the center of the mold platform 1-2 is a top column groove 101, and the depth of the top column groove 101 is the thickness of the protective layer 10 on the floor slab; an upper platform groove 102 is provided on the top column groove 101; the height of the core mold 2 is the distance between the upper steel bars 82 and the lower steel bars 81 minus the depth of the upper platform groove 102, and a column hole 201 is provided in the center of the core mold 2; the side mold 3 is a cylinder, and the top of the side mold 3 is higher than the top of the core mold 2, and the height difference is the thickness of the protective layer 9 under the floor slab.

[0029] In order to facilitate demoulding, the core mold 2 is composed of at least two components. Figure 7 Specifically, the core mold 2 is composed of a left half ring and a right half ring divided by a central axis. Preferably, the lower portion 202 of the column hole of the core mold 2 is conical.

[0030] Embodiment 1, as Figure 2 , 3 As shown, the bottom mold 1 is composed of a mold platform 1-2 and a base 1-1, the base 101 is a flat plate, and the mold platform 102 is evenly fixed on the flat plate. In this embodiment, the top column groove 101 and the upper platform groove 102 are round holes drilled and polished on the mold platform 12. The diameter of the mold platform 1-2 is equal to the diameter of the core mold 2. The side mold 3 is mounted outside the core mold 2 and the mold platform 102.

[0031] In Example 2, the bottom mold 1 is composed of a mold platform 1-2 and a base 1-1, and the mold platform 1-2 is a circular slot hole set on the base 1-1. In this embodiment, the top column slot 101 and the upper platform slot 102 are circular holes drilled and polished on the base 1-1. The core mold 2 is set on the mold platform, the core mold column hole 201 is coaxially arranged with the upper platform slot 102, and the side mold 3 is sleeved outside the core mold 2.

[0032] Furthermore, in order to align the structure when the core mold 2 is connected to the mold platform 1-2, a limiting rib 103 is provided on the top periphery of the mold platform 1-2, and a limiting groove 203 is provided on the bottom periphery of the core mold 2, and the limiting rib 103 and the limiting groove 203 are spliced.

[0033] The pad block made by the above-mentioned mold includes a lower platform 4 and an upper platform 6. The thickness of the lower platform 4 is equal to the thickness of the protective layer 9 under the floor slab. It is characterized in that: the lower platform 4 is connected to the upper platform 6 by a column 5, a top column 7 is arranged at the center of the upper platform 6, and the height difference from the upper platform 6 to the top column 7 is the thickness of the protective layer 10 on the floor slab.

[0034] The operation process of using the above mold to make the above pad is as follows: first, fully apply the release agent to the bottom mold to facilitate the later demolding; then apply the release agent to all the parts in contact with the concrete inside the side mold and the core mold; put the side molds on the bottom mold one by one, and put the core mold into the side mold; pour fine stone concrete or high-grade mortar with the same grade as the floor slab into each side mold, and the pouring height is flush with the height of the side mold; finally, vibrate and compact, wait for the concrete to finally set, remove the side mold, and water and cure until the design strength is more than 75% before use. If the concrete strength grade of the test block is C30, the pad can be used when the strength reaches 22.5MPa.

[0035] The pad block production mold of the present invention can be used to produce concrete pad blocks in batches, and the mold closing and demoulding operations are simple, the construction speed is fast, the pad blocks are beautifully formed, and the time cost and material cost in construction are effectively saved.

Claims

1. A mold for manufacturing a cushion block, comprising a bottom mold (1), a core mold (2) and a side mold (3), characterized in that: A plurality of mold platforms (1-2) are arranged on the bottom mold (1); an upper platform groove (102) is arranged at the center of the mold platform (1-2); a top column groove (101) is arranged at the bottom of the upper platform groove (102), and the depth of the top column groove (101) is equal to the thickness of the protective layer (10) on the floor slab; and a limiting rib (103) is arranged at the periphery of the top of the mold platform (1-2); The height of the core mold (2) is the distance between the upper steel bars (82) and the lower steel bars (81) minus the depth of the upper platform groove (102). A column hole (201) is provided at the center of the core mold (2). The lower part (202) of the column hole is conical. The core mold (2) is installed on the mold platform (1-2). The column hole (201) is coaxial with the upper platform groove (102). The core mold (2) is composed of a left half ring and a right half ring divided by a central axis. A limiting groove (203) is provided at the periphery of the bottom of the core mold (2). The limiting rib (103) is spliced ​​with the limiting groove (203). The side mold (3) is a cylinder. The side mold (3) is mounted outside the core mold (2) and the mold platform (1-2). The top of the side mold (3) is higher than the top of the core mold (2). The height difference is the thickness of the protective layer (9) under the floor slab.

2. The cushion block manufacturing mold according to claim 1, characterized in that: The bottom mold (1) is composed of a mold platform (1-2) and a base (1-1). The base (1-1) is a plane plate. The mold platform (1-2) is evenly fixed on the plane plate. The mold platform (1-2) has a circumferential diameter equal to that of the core mold (2) and matches the side mold (3).

3. The cushion block manufacturing mold according to claim 1, characterized in that: The bottom mold (1) is composed of a mold platform (1-2) and a base (1-1); the mold platform (1-2) is a circular slot evenly arranged on the base (1-1).

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