Forming die for small-caliber prefabricated pipe

Abstract

The utility model discloses a forming die for a small-caliber prefabricated pipe. Relates to the field of prefabricated pipe processing. Comprising a bottom die, an inner die and an outer die, the inner die and the outer die are arranged inside and outside, the bottom die is annular, the outer die is connected to the top of the bottom die, the inner die is arranged in an annular hole of the bottom die, an inner die supporting plate is arranged at the bottom of the inner die, and the bottom die is connected above the inner die supporting plate in a lifting mode. And mold brackets are arranged on the periphery of the bottom of the inner mold supporting plate correspondingly to form a placement space, and a lifting assembly is arranged in the middle of the placement space and used for driving the bottom mold to act. The lifting assembly comprises a linear driving unit, a top plate and bottom die supporting columns, the bottom die supporting columns are annularly and evenly distributed on the top of the top plate, the bottom die supporting columns penetrate through the inner die supporting plate and are used for making contact with the bottom die, and the linear driving unit is located below the top plate and used for supporting the top plate. The mold is convenient to demold and reliable to operate.

Description

Technical Field

[0001] The utility model relates to the field of precast pipe processing, and particularly relates to a forming die for small-diameter precast pipes. Background Art

[0002] At present, for concrete pipes with a size of Φ600mm or more (including Φ600mm), a vertical vibration process forming die is adopted, and the opening and closing of the inner die are carried out manually by workers entering the inner die or by mechanical opening and closing.

[0003] For the die of reinforced concrete pipes with a size of less than Φ600mm, since the inner diameter of the inner die is too small, an opening and closing mechanism cannot be set inside the inner die, and workers cannot enter for operation. Thus, how to achieve a reliable and effective pouring process (especially the demoulding method of the inner die with a diameter of less than Φ600mm) is the main problem faced at present. Summary of the Utility Model

[0004] The utility model aims at the above problems and provides a forming die for small-diameter precast pipes, which has a simple structure, is convenient for processing, and has reliable demoulding.

[0005] The technical solution of the utility model is as follows: a forming die for small-diameter precast pipes includes a bottom die, and an inner die and an outer die arranged inside and outside.

[0006] The bottom die is annular, the outer die is connected to the top of the bottom die, and the inner die is arranged in the annular hole of the bottom die.

[0007] An inner die support plate is arranged at the bottom of the inner die.

[0008] The bottom die is connected in a lifting manner above the inner die support plate.

[0009] Mould brackets are respectively arranged around the bottom of the inner die support plate to form an installation space.

[0010] A lifting assembly is arranged in the middle of the installation space, and the lifting assembly is used to drive the bottom die to move.

[0011] The lifting assembly includes a linear drive unit, a top plate and bottom die support columns.

[0012] The bottom die support columns are annularly and uniformly arranged on the top of the top plate, and the bottom die support columns pass through the inner die support plate and are used to contact the bottom die.

[0013] The linear drive unit is located below the top plate and is used to support the top plate.

[0014] The linear drive unit is a hydraulic cylinder, a pneumatic cylinder or a mechanical jack.

[0015] The bottom die support columns include four.

[0016] The mold brackets at the four - week bottom of the inner mold pallet are respectively connected with embedded parts, and the linear drive unit is located in the middle of the embedded parts.

[0017] An annular groove is provided on the inner wall of the bottom mold, and a sealing ring is provided in the annular groove.

[0018] A support plate is provided on the inner side of the mold bracket, and the top plate is located above the support plate.

[0019] In the work of the utility model, after the mold is poured, at this time, the core of the pre - cast pipe is formed between the inner mold, the outer mold and the bottom mold. Through the upward movement of the bottom mold, the bottom mold drives the core and the outer mold to move upward. After setting to move upward by 10 cm, use a crane to lift the outer mold, the bottom mold and the core away.

[0020] The utility model is convenient for demoulding and has reliable operation. Description of the Drawings

[0021] In order to more clearly illustrate the specific implementation manners of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific implementation manners or the prior art. In the drawings, each part is not necessarily drawn according to the actual proportion.

[0022] Figure 1 is the structural schematic diagram of the utility model,

[0023] Figure 2 is the demoulding schematic diagram of the utility model,

[0024] Figure 3 is the structural schematic diagram of the inner mold pallet,

[0025] Figure 4 is the connection structural schematic diagram of the top plate and the bottom - mold support column,

[0026] Figure 5 is Figure 1 the partial schematic diagram of

[0027] In the figure, 1 is the bottom mold, 2 is the inner mold, 3 is the outer mold, 4 is the inner mold pallet, 40 is the perforation, 5 is the mold bracket,

[0028] 6 is the lifting assembly, 61 is the linear drive unit, 62 is the top plate, 63 is the bottom - mold support column,

[0029] 7 is the embedded part, 8 is the sealing ring, 9 is the support plate, 10 is the core. Detailed Description of the Preferred Embodiments

[0030] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] As shown in the present utility model Figures 1-5 a forming die for small-diameter precast pipes includes a bottom die 1 and an inner die 2 and an outer die 3 arranged inside and outside.

[0034] The bottom die 1 is annular, the outer die 2 is connected to the top of the bottom die 1, and the inner die 2 is arranged in the annular hole of the bottom die 1.

[0035] An inner die support plate 4 is provided at the bottom of the inner die 2.

[0036] The bottom die 1 is connected in a lifting manner above the inner die support plate 4.

[0037] During the operation of the present utility model, after the die is poured, at this time, the core 10 of the precast pipe is formed between the inner and outer dies and the bottom die. Through the lifting action of the bottom die, the bottom die drives the core and the outer die to move upward. For example, after setting to move upward by 10 cm, a crane is used to lift the outer die, the bottom die, and the core away.

[0038] In application, the inner die is integrally machined by turning, and the surface is chrome-plated, smooth and reliable. The outer die is connected to the bottom die through a locking mechanism. The locking mechanism is provided with a locking pin, for example, to facilitate the connection between the two.

[0039] The concrete pipes in the present utility model are not limited to PCCP pipes, and there are also concrete pipes without prestress requirements, such as drain pipes.

[0040] Mould brackets 5 are respectively arranged around the bottom of the inner mould support plate 4 to form an installation space.

[0041] An elevating assembly 6 is arranged in the middle of the installation space, and the elevating assembly is used to drive the bottom mould to act.

[0042] By arranging the mould brackets at the bottom of the inner mould support plate to form an installation space, it is convenient to place the elevating assembly to act.

[0043] The elevating assembly 6 includes a linear drive unit 61, a top plate 62 and bottom mould support columns 63.

[0044] The bottom mould support columns 63 are evenly arranged in a ring on the top of the top plate, and the bottom mould support columns 63 pass through the perforations 40 of the inner mould support plate and are used to contact the bottom mould 1.

[0045] The linear drive unit 61 is located below the top plate and is used to support the top plate 62.

[0046] When the elevating assembly acts, the linear drive unit drives the top plate, the top plate drives the bottom mould support columns to act, and further drives the bottom mould and the outer mould on the bottom mould to act.

[0047] The linear drive unit 61 is a hydraulic cylinder or a pneumatic cylinder.

[0048] It can be selected and set according to the specific working conditions. There are also hydraulic jacks, mechanical jacks, etc.

[0049] The bottom mould support columns 63 include four.

[0050] It can be selected and set according to the specific working conditions.

[0051] The bottom parts of the mould brackets around the bottom of the inner mould support plate are respectively connected with embedded parts 7, and the linear drive unit is located in the middle of the embedded parts.

[0052] By arranging the embedded parts, it is convenient to connect the mould brackets and the linear drive unit.

[0053] An annular groove is arranged on the inner wall of the bottom mould, and a sealing ring 8 is arranged in the annular groove.

[0054] By arranging the sealing ring, a sealing effect between the inner mould and the bottom mould is achieved.

[0055] A support plate 9 is arranged inside the mould bracket 5, and the top plate 62 is located above the support plate 9.

[0056] By setting up the support plate 9, it plays a role in supporting the top plate 62, provides limit, and at the same time ensures the reliability of the position of the top plate, facilitating subsequent lifting actions.

[0057] Regarding the content disclosed in this case, the following points need to be explained:

[0058] (1) The accompanying drawings of the embodiments disclosed in this case only relate to the structures involved in the embodiments disclosed in this case, and other structures can refer to the general design;

[0059] (2) Without conflict, the embodiments disclosed in this case and the features in the embodiments can be combined with each other to obtain new embodiments;

[0060] The above is only the specific implementation manner disclosed in this case, but the protection scope of this disclosure is not limited thereto. The protection scope disclosed in this case shall be subject to the protection scope of the claims.

Claims

1. A forming die for a small-diameter prefabricated pipe, comprising a bottom die and inner and outer dies arranged inside and outside, characterized in that: The bottom mold is annular, the outer mold is connected to the top of the bottom mold, and the inner mold is arranged in the annular hole of the bottom mold. An inner mold support plate is provided at the bottom of the inner mold. The bottom mold is lifted and connected above the inner mold supporting plate.

2. The forming die for small-diameter prefabricated pipes according to claim 1, characterized in that: The bottom of the inner mold support plate is surrounded by mold brackets to form a placement space. A lifting component is arranged in the middle of the placement space, and the lifting component is used for driving the bottom mold to move.

3. The forming die for small-diameter prefabricated pipes according to claim 2, characterized in that: The lifting assembly includes a linear drive unit, a top plate and a bottom mold support column, The bottom mold support columns are evenly distributed on the top of the top plate in a ring shape, and the bottom mold support columns pass through the inner mold support plate and are used to contact the bottom mold. The linear drive unit is located below the top plate and is used for supporting the top plate.

4. The forming die for small-diameter prefabricated pipes according to claim 3, characterized in that: The linear drive unit is a hydraulic cylinder, a pneumatic cylinder or a mechanical jack.

5. The forming die for small-diameter prefabricated pipes according to claim 3, characterized in that: The bottom mold support columns include four.

6. The forming die for small-diameter prefabricated pipes according to any one of claims 3 to 5, characterized in that: The bottoms of the mold brackets around the bottom of the inner mold support plate are respectively connected to embedded parts, and the linear drive unit is located in the middle of the embedded parts.

7. The forming die for small-diameter prefabricated pipes according to claim 1, characterized in that: The inner wall of the bottom mold is provided with an annular groove, and a sealing ring is provided in the annular groove.

8. The forming die for small-diameter prefabricated pipes according to claim 3, characterized in that: A support plate is provided on the inner side of the mold bracket, and the top plate is located above the support plate.

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