Core mold and prefabricated part mold

Abstract

The utility model provides a core mould and prefabricated part mould, including shell, flexible layer and gasbag, flexible layer is provided between shell and gasbag, gasbag inflates and expands to press the flexible layer, gasbag deflates and separates from flexible layer. The inner mold is driven by power to expand outwards to extrude a preformed pile body and / or contract inwards to be separated from a positioning connecting piece, after preforming is completed through filling, the inner mold is driven by power to expand outwards to extrude the preformed pile body, the pile body is extruded more compactly, the strength of the formed pile body is further improved, and when the inner mold needs to be demolded after extrusion, the inner mold is separated from the positioning connecting piece. And the inner mold can contract inwards and can be separated from a formed product in the contraction process, so that the core mold is convenient to demold.

Description

TECHNICAL FIELD

[0001] The utility model relates to prefabricated component processing technical field especially, it relates to a core mold and prefabricated component mould. BACKGROUND

[0002] Pile products are widely used in the construction industry, different specifications of pile products need to use corresponding molds in production, the cement pile products on the market have solid piles and hollow piles, the needs of customers are different, and the cement pile products used will also change accordingly.

[0003] With the vigorous development of the construction industry, the demand for cement piles is also increasing, in terms of manufacturing cost, hollow piles have relatively lower manufacturing cost than solid piles because of the hollow structure, the required materials are less; due to the smaller volume and weight, the transportation and installation cost is also relatively low; in complex or restricted construction environment, the application of hollow special-shaped square piles has more advantages.

[0004] However, the processing of hollow piles is more complex than that of solid piles, a core mold for processing hollow is needed, the existing core mold for manufacturing hollow is mostly of integral structure, high-temperature curing is needed during the production of cement components, so that the cement fits the core mold more and more closely in the process of thermal expansion and cold contraction, at this time, it may be difficult to remove the core mold, or the cement pile may be damaged, not only causing waste of processing cost, but also affecting the pile output efficiency.

[0005] The hollow pile product mold on the market needs an outer mold and a core mold to be used together, the core mold needs to be pulled out after assembly and use, even if the core mold surface is sprayed with a release agent, the core mold may still be damaged when pulled out hard;

[0006] At present, the most common method of producing hollow slab piles is to place a rigid core mold with a fixed shape inside the outer mold, and then pull out the core mold after the pouring, curing and other processes of the slab pile are completed to complete the removal of the core mold; but due to the large length of the slab pile, the combination between the inner wall of the pile body and the core mold is relatively tight, which causes great difficulty in the smooth removal of the core mold, during the removal process, if the stress is too large, the internal part of the pile body will be damaged, affecting the quality and service life of the pile foundation, which is not conducive to the safety of subsequent use, and at the same time, it will cause damage to the mold, shortening the service life of the mold. SUMMARY

[0007] Therefore, the utility model aims at solving the technical problem of difficult demolding of the existing hollow pile.

[0008] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0009] A core mold comprises a shell, a flexible layer and an air bag, the flexible layer is arranged between the shell and the air bag, the air bag expands to press the flexible layer after being inflated, and the air bag is separated from the flexible layer after being deflated.

[0010] A core mold comprises a positioning pipe and a sleeve, the sleeve is wrapped around the peripheral surface of the positioning pipe, the shell is detachably connected with the positioning pipe, and the sleeve is made of a light material.

[0011] A core mold comprises a wedge-shaped block, a telescopic rod and a driving mechanism, the wedge-shaped block is connected with the driving mechanism through the telescopic rod, and the driving mechanism drives the telescopic rod to move in an extension and retraction mode.

[0012] Further, the adjacent wedge-shaped blocks are provided with fixing blocks, and the fixing blocks and the wedge-shaped blocks are connected through hinges.

[0013] Further, the wedge-shaped block is pivotally connected with the telescopic rod.

[0014] Further, the adjacent wedge-shaped blocks are provided with fixing blocks, and the wedge-shaped block and the fixing block on one side are connected through a hinge.

[0015] Further, the adjacent wedge-shaped blocks are provided with fixing blocks, and the wedge-shaped block and the fixing blocks on two sides are connected through hinges, and the two hinges are pivotally connected with the wedge-shaped block.

[0016] Further, the wedge-shaped block is provided with a hollow pipe.

[0017] A prefabricated component mold is provided with a core mold.

[0018] The core mold has the following advantages.

[0019] The core mold is driven by power to expand outward to extrude the preformed pile body and / or to contract inward to separate from the positioning connector, after the filling is completed and the preformed pile is formed, the inner mold is driven by power to expand outward to extrude the preformed pile body, the pile body is extruded to be more compact, the strength of the formed pile body is further increased, after extrusion, the inner mold can be contracted inward, and the inner mold can be separated from the formed product during the contraction process, so that the core mold can be demolded. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0021] Figure 1 It is the perspective view of the mold provided by the embodiment of the utility model;

[0022] Figure 2 is another mold of the embodiment of the utility model provides a perspective view;

[0023] Figure 3 is the schematic diagram of the core mold of the embodiment one of the utility model;

[0024] Figure 4 is the schematic diagram of the outer sleeve of the embodiment two of the utility model;

[0025] Figure 5 is the schematic diagram of the core mold of the embodiment two of the utility model;

[0026] Figure 6 is another schematic diagram of the core mold of the embodiment two of the utility model;

[0027] Figure 7 is the schematic diagram of the core mold of the embodiment three of the utility model;

[0028] Figure 8 is the schematic diagram of the wedge-shaped block of the embodiment three of the utility model;

[0029] Figure 9 is the schematic diagram of the wedge-shaped block sliding of the embodiment three of the utility model;

[0030] Figure 10 is the schematic diagram of the wedge-shaped block after contraction of the embodiment three of the utility model;

[0031] Figure 11 is the schematic diagram of the core mold of the embodiment four of the utility model;

[0032] Figure 12 is another schematic diagram of the core mold of the embodiment four of the utility model;

[0033] Figure 13 is another schematic diagram of the core mold of the embodiment four of the utility model;

[0034] Figure 14 is another schematic diagram of the core mold of the embodiment four of the utility model. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, apparently, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0036] <Embodiment one>

[0037] As Figure 3 shown, the core mold provided by the embodiment comprises a shell 11, a flexible layer 12 and an air bag 13, the flexible layer 12 is arranged between the shell 11 and the air bag 13, the air bag 13 expands to press the flexible layer 12 after being inflated, and the air bag 13 is separated from the flexible layer 12 after being deflated. In the embodiment, the shell 11 is made of a steel plate, the flexible layer 12 is made of rubber, when demolding is needed, the air bag is deflated, after the air bag is deflated, the rubber sleeved on the outer surface of the air bag will no longer press the steel plate, at this time, a gap will be generated between the steel plate and the inner cavity of the cement pile component, thereby facilitating demolding.

[0038] <Embodiment Two>

[0039] In the embodiment, the same parts as in Embodiment One are given the same reference numerals, and the same textual description is omitted.

[0040] As Figures 4 to 6 shown, compared with Embodiment One, the core mold provided by the embodiment has the following different structural design:

[0041] The core mold comprises a positioning pipe 21 and a sleeve 22, the sleeve 22 is wrapped around the outer circumferential surface of the positioning pipe 21, the sleeve 22 is detachably connected with the positioning pipe 21, the sleeve is made of a light material, and in the embodiment, the sleeve is made of foam. When demolding is needed, the foam core mold remains on the processed cement pile component, without the need for disassembly, the positioning pipe can be directly pulled out, thereby facilitating demolding.

[0042] <Embodiment Three>

[0043] In the embodiment, the same parts as in Embodiments One and Two are given the same reference numerals, and the same textual description is omitted.

[0044] As Figures 7 to 10 shown, compared with Embodiments One and Two, the core mold provided by the embodiment has the following different structural design:

[0045] A core mold comprises wedge-shaped blocks 31, a telescopic rod 32 and a driving mechanism 33, the wedge-shaped blocks 31 are connected with the driving mechanism 33 through the telescopic rod 32, and the driving mechanism 33 drives the telescopic rod 32 to move in a telescopic manner. When demolding is needed, the telescopic mechanism is started, the telescopic mechanism controls the telescopic rod to extend and retract, pulls the wedge-shaped blocks, and then causes a gap to be generated between the outer wall of the core mold and the inner wall of the cement pile component, thereby facilitating demolding. The telescopic mechanism can be electrically driven, such as a pneumatic cylinder, or manually driven, and manual rotation causes the telescopic rod to extend and retract.

[0046] Further, the fixed blocks 34 are arranged between the adjacent wedge-shaped blocks 31, and the fixed blocks 34 are connected with the wedge-shaped blocks 31 through hinges 35.

[0047] <Embodiment Four>

[0048] In this embodiment, the same parts as in Embodiments 1 to 3 are given the same reference numerals and the same description is omitted.

[0049] As shown in Figure 11 , compared with Embodiments 1 to 3, the core mold provided in this embodiment has the following different structure design:

[0050] The wedge-shaped block 41 is pivotally connected with the telescopic rod 42, and the driving mechanism 43 drives the telescopic rod 42 to extend or retract, so that the wedge-shaped block 41 slides.

[0051] As an improvement, as shown in Figure 12 , the adjacent wedge-shaped blocks 41 have fixed blocks 44 therebetween, and the wedge-shaped block 41 is connected with the fixed block 44 on one side through a hinge 45.

[0052] As an improvement, as shown in Figure 13 , the adjacent wedge-shaped blocks 41 have fixed blocks 44 therebetween, and the wedge-shaped block 41 is connected with the fixed blocks 44 on both sides through hinges 45, and the two hinges 45 are connected with the pivot 411 of the wedge-shaped block 41.

[0053] As an improvement, as shown in Figure 14 , the wedge-shaped block 41 is provided with a hollow pipe 46.

[0054] <Embodiment Five>

[0055] In this embodiment, the same parts as in Embodiments 1 to 4 are given the same reference numerals and the same description is omitted.

[0056] As shown in Figure 1 and Figure 2 , a prefabricated component mold is provided with a core mold 100 in the mold 200, and the core mold 100 can adopt the core molds in Embodiments 1 to 5.

[0057] In Embodiments 1 to 5, during the working process, part of the technical implementation manners of Embodiments 1 to 5 can be combined or replaced according to different working environments.

[0058] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A core, characterized in that The application relates to a shell, a flexible layer and an air bag, the flexible layer is arranged between the shell and the air bag, the air bag is inflated to expand and press the flexible layer, and the air bag is separated from the flexible layer after being deflated.

2. A core, characterized in that The application relates to a positioning tube and a sheath, the sheath is wrapped on the peripheral surface of the positioning tube, the shell is detachably connected with the positioning tube, and the sheath is made of light material.

3. A core, characterized in that The application relates to a wedge-shaped block, a telescopic rod and a driving mechanism, the wedge-shaped block is connected with the driving mechanism through the telescopic rod, and the driving mechanism drives the telescopic rod to move in an extending or retracting mode.

4. The core of claim 3, wherein Fixed blocks are arranged between adjacent wedge-shaped blocks, and the fixed blocks and the wedge-shaped blocks are connected through hinges.

5. The core of claim 3, wherein The wedge-shaped block is pivotally connected with the telescopic rod.

6. The core of claim 3, wherein Fixed blocks are arranged between adjacent wedge-shaped blocks, and the wedge-shaped blocks and the fixed blocks on one side are connected through hinges.

7. The core of claim 3 wherein, Fixed blocks are arranged between adjacent wedge-shaped blocks, and the wedge-shaped blocks and the fixed blocks on two sides are connected through hinges, and the two hinges are pivotally connected with the wedge-shaped block.

8. The core of claim 3, wherein The wedge-shaped block is provided with a hollow pipe.

9. A preform mould characterised in that, The mold is provided with the core mold in any one of claims 1 to 8.

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