Concrete centrifugal special-shaped sheet pile forming die

Abstract

The utility model relates to a concrete centrifugal special-shaped sheet pile forming die. The concrete centrifugal special-shaped sheet pile forming die comprises an upper die, a lower die buckled on the upper die and a locking device used for locking the upper die and the lower die in a butt-joint state. Cavities are formed in the upper die and the lower die, the two cavities are symmetrically distributed, and the cross section of a forming die cavity formed after the upper die and the lower die are buckled is rectangular; side cavities are formed in the two wide side faces of a rectangular cavity formed by buckling the upper mold and the lower mold, the side cavities are symmetrically distributed relative to the parting surface of the upper mold and the lower mold, and the side cavities are arc-shaped or trapezoidal and used for forming symmetrical side face protrusions on the two wide side faces of a sheet pile; a tenon and a mortise are symmetrically formed in the two narrow side faces of a rectangular cavity formed by buckling the upper die and the lower die, the cross section of the tenon and the cross section of the mortise are in an arc shape or a trapezoid shape, and the tenon and the mortise are matched with each other. The vertical and symmetrical parting surfaces are adopted, so that the mold is convenient to manufacture, and meanwhile, the forming quality and the structural performance of a pile body are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of support pile mould, especially relates to a concrete centrifugal special-shaped sheet pile forming mould. BACKGROUND

[0002] The utility model discloses a pre-tensioning method prestressed special-shaped support sheet pile designed by our company, as shown in the drawings, the balance of structural performance and economic benefit is realized by designing the symmetric arc or trapezoidal convex on the side wall. Figure 1 The wall thickness increases, the bearing capacity of the structure is improved, and the sheet pile can be designed with a larger central hole diameter without weakening the overall strength.

[0003] However, the existing forming mould designed for the sheet pile has the following defects in the production and manufacturing process: 1. the diagonal inclined parting surface of the mould leads to the demoulding angle affecting the demoulding of the sheet pile, reduces the production efficiency, and in the demoulding process, the structure is easily damaged, affecting the structural strength and the appearance of the sheet pile; 2. due to the diagonal inclined parting surface of the mould, the machining difficulty of the arc or trapezoidal convex structure of the inner cavity side wall of the mould is increased, and the machining size deviation often occurs, so that the mould appears deviation to the machined sheet pile structure, and the forming quality of the pile body is affected. UTILITY MODEL CONTENTS

[0004] In view of the above defects of the prior art, the utility model provides a concrete centrifugal special-shaped sheet pile forming mould, which is designed with vertical symmetrical parting surfaces, is convenient for mould manufacturing, and guarantees the forming quality and structural performance of the pile body.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A concrete centrifugal special-shaped sheet pile forming mould, comprising an upper mould, a lower mould buckled below the upper mould, and a locking device for locking the upper mould and the lower mould in a split state;

[0007] The inner part of the upper mould and the lower mould is provided with a cavity, and the two cavities are symmetrically distributed, and the cross section of the forming mould cavity formed after the upper mould and the lower mould are buckled is rectangular;

[0008] Side cavities are arranged on the two wider side faces of the rectangular cavity formed by buckling the upper mould and the lower mould, the side cavities are symmetrically distributed relative to the parting surface of the upper mould and the lower mould, the side cavities are arc-shaped or trapezoidal, and are used for forming the symmetric side convexes on the two wider side faces of the sheet pile;

[0009] A tenon and a mortise are symmetrically formed on the two narrower side faces of the rectangular cavity formed by buckling the upper mould and the lower mould, the cross section shape of the tenon and the mortise is arc-shaped or trapezoidal, and the two are matched with each other.

[0010] In a preferred embodiment of the present application, the four inner corners of the rectangular cavity are all equal distance chamfers or equal diameter fillets.

[0011] In a preferred embodiment of the present application, the highest part of the side cavity is not less than 50mm from the height of the rectangular cavity.

[0012] In a preferred embodiment of the present application, a crane lug is further provided on the upper die and the lower die for hoisting.

[0013] In a preferred embodiment of the present application, the locking device comprises a bolt and a locking nut, the locking nut is connected with the bolt and locks the upper die and the lower die.

[0014] In a preferred embodiment of the present application, end plates are installed at both ends of the upper die and the lower die, and a reinforcement cage is arranged in the rectangular cavity of the forming die, and the end plates are provided with counterbores to limit the head of the main reinforcement of the reinforcement cage.

[0015] In a preferred embodiment of the present application, the upper die and the lower die comprise a plurality of segments which are sequentially spliced along the length direction, and one of the segments of the upper die and the lower die is provided as a decorative segment. Advantages

[0016] The present application discloses a concrete centrifugal special-shaped sheet pile forming die, the parting surface of the forming die vertically and symmetrically divides the sheet pile along the middle part, so that the processing of the side cavity, the tenon and the mortise is positioned on the vertical cavity surface, the processing difficulty of the die cavity and the manufacturing cost of the die are reduced; at the same time, the design of the vertically symmetric parting surface makes the whole die present a symmetric structure, and the gravity center is more stable.

[0017] The cavity of the upper die and the lower die is symmetrically distributed, in the centrifugal forming process, the die can maintain good balance, reduce deformation or wear caused by gravity center deviation, ensure that the centrifugal force of the concrete is uniformly distributed when the concrete is centrifuged, thereby ensuring the compactness of the sheet pile concrete, making the appearance of the formed sheet pile flat and the size accurate, the die is easy to demould, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the sheet pile in the background technology of the present application;

[0019] Figure 2 It is a structural schematic view of a concrete centrifugal special-shaped sheet pile forming die (embodiment one) provided by the present application;

[0020] Figure 3 It is a front view of a concrete centrifugal special-shaped sheet pile forming die (embodiment one) provided by the present application;

[0021] Figure 4 A schematic diagram of a concrete centrifugal irregular sheet pile forming mold (Example 2) provided by this utility model;

[0022] Figure 5 A front view of a concrete centrifugal irregular sheet pile forming mold (Example 2) provided by this utility model;

[0023] Figure 6 A structural schematic diagram of a concrete centrifugal irregular sheet pile forming mold (Example 3) provided by this utility model;

[0024] Figure 7 The front view of a concrete centrifugal irregular sheet pile forming mold (Example 3) provided by this utility model.

[0025] In the diagram: 1. Upper mold;

[0026] 2. Lower mold;

[0027] 3. Side cavities;

[0028] 4. Tenons;

[0029] 5. Mortise and tenon joints;

[0030] 6 sheet piles. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1:

[0032] like Figures 2-3 As shown, this utility model provides a concrete centrifugal irregular sheet pile forming mold. The mold adopts a centrifugal production process and is used to form the central hole provided in the middle of the sheet pile 6.

[0033] It includes an upper mold 1, a lower mold 2 that is fastened to the lower part of the upper mold 1, and a locking device for locking the upper mold 1 and the lower mold 2 in a mating state, forming a complete molding die;

[0034] The upper mold 1 and the lower mold 2 are both equipped with cavities. The two cavities are symmetrically distributed. The cross-section of the forming mold cavity formed after the upper mold 1 and the lower mold 2 are fastened together is rectangular. The four inner corners of this rectangle are all equidistant chamfers or rounded corners of equal diameter, which ensures that the formed sheet pile 6 has good structural strength and appearance quality at the four corners. At the same time, the chamfers or rounded corners can reduce stress concentration and improve the durability of the pile body.

[0035] The side part cavities 3 are arc-shaped and are symmetrically distributed on the two sides of the rectangular cavity formed by the upper die 1 and the lower die 2, and are symmetrically distributed with respect to the parting surface of the upper die 1 and the lower die 2. The side part cavities 3 are arc-shaped and are used to form the symmetric side protrusions of the sheet pile 6. The highest part of the side part cavities 3 is not less than 50 mm from the height of the rectangular cavity, which increases the structural complexity of the side of the sheet pile 6, improves the engagement ability of the sheet pile 6 with the surrounding soil, and enhances the anti-pulling performance of the sheet pile 6.

[0036] The tenon 4 and the mortise 5 are symmetrically formed on the two narrow sides of the rectangular cavity formed by the upper die 1 and the lower die 2. The cross-sectional shape of the tenon 4 and the mortise 5 is trapezoidal.

[0037] The reinforcing cage is placed in the cavity of the molding die, and a certain amount of concrete is injected and formed by centrifugation. Preferably, the cross-sectional length of the rectangular cavity of the die is 600 mm, the cross-sectional width is 320 mm, the height of the side part cavity 3 from the rectangular cavity is 75 mm, and the central hole diameter of the sheet pile 6 formed by centrifugation through the die is 300 mm.

[0038] The parting surface of the molding die vertically and symmetrically divides the sheet pile 6 along the middle part, so that the processing of the side part cavities 3, the tenon 4 and the mortise 5 are all located on the vertical cavity surface, which reduces the processing difficulty of the die cavity and the manufacturing cost of the die. At the same time, the design of the vertically and symmetrically divided parting surface makes the die as a whole symmetric structure, and the center of gravity is more stable. In the process of centrifugal forming, the die can maintain good balance, and reduce deformation or wear caused by the deviation of the center of gravity.

[0039] The existing die parting surface design facilitates the die stripping, optimizes the production efficiency, avoids the problem of stripping angle caused by the oblique or diagonal parting surface, and reduces the damage to the surface of the sheet pile 6. Example Two

[0040] The other parts are the same as in Example One, as shown in Figures 4-5 except that the side part cavities 3 are arc-shaped, and the cross-sectional shape of the tenon 4 and the mortise 5 is arc-shaped. Example Three

[0041] The other parts are the same as in Example One, as shown in Figures 6-7 except that the side part cavities 3 are trapezoidal, the side protrusions of the sheet pile 6 are trapezoidal, and the cross-sectional shape of the tenon 4 and the mortise 5 is trapezoidal. Example Four

[0042] The other parts are the same as in Example One, except that the side part cavities 3 are trapezoidal, the side protrusions of the sheet pile 6 are trapezoidal, and the cross-sectional shape of the tenon 4 and the mortise 5 is arc-shaped.

[0043] In one embodiment,

[0044] The upper die 1 and the lower die 2 are further provided with a crane lug for hoisting; the crane lug enables the die to be safely and conveniently carried and positioned by a crane or other hoisting equipment.

[0045] In one embodiment,

[0046] The locking device comprises a bolt and a locking nut connected with the bolt and locking the upper die 1 and the lower die 2.

[0047] In one embodiment,

[0048] End plates are mounted at both ends of the upper die 1 and the lower die 2, and the end plates are provided with counterbores for limiting the main reinforcement bars of the reinforcement cage;

[0049] In one embodiment,

[0050] The upper die 1 and the lower die 2 comprise a plurality of segments sequentially connected along the length direction thereof, one of which is an artistic segment arranged to set artistic textures on the side cavity 3, so that the formed sheet piles 6 are assembled to form the effect of an artistic pile wall.

[0051] In summary,

[0052] The utility model discloses a concrete centrifugal special-shaped sheet pile forming die, the parting surface of forming die divides sheet pile along the vertical symmetry in the middle, and the processing of side cavity, tenon and mortise is all positioned on the vertical cavity face, so that the accuracy of the die cavity is guaranteed, the processing difficulty of the die cavity and the manufacturing cost of the die are reduced, and the whole die is symmetrical in structure and the gravity center is more stable.

[0053] The cavities of the upper die and the lower die are symmetrically distributed, the die can keep good balance during the centrifugal forming process, deformation or wear caused by gravity center deviation is reduced, the centrifugal force distribution of the concrete is uniform when the concrete is centrifuged, the compactness of the sheet pile concrete is guaranteed, the appearance of the formed sheet pile is smooth, the size is accurate, the die is easy to demould, and the production efficiency is improved.

[0054] The basic principle, main features and advantages of the utility model are shown and described above, and the front, back, left and right are not specified, and are mainly used for more intuitive description of the technical scheme, and do not have a limiting effect. The skilled person in the art should understand that the above-mentioned embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and the protection scope of the utility model cannot be limited thereto, and any equivalent changes or modifications made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. A concrete centrifugal contoured sheet pile forming die, characterized by: The utility model relates to a mould locking device, which comprises an upper mould (1), a lower mould (2) locked below the upper mould (1), and a locking device for locking the upper mould (1) and the lower mould (2) in a matched state. The upper mould (1) and the lower mould (2) are each internally provided with a cavity, and the two cavities are symmetrically distributed, and the cross section of the cavity formed by the upper mould (1) and the lower mould (2) after being locked is rectangular. Side cavities (3) are arranged on the two sides of the rectangular cavity formed by the upper mould (1) and the lower mould (2), and the side cavities (3) are symmetrically distributed relative to the parting surface of the upper mould (1) and the lower mould (2), and the side cavities (3) are arc-shaped or trapezoidal, and are used for forming the symmetric side protrusions of the two wide sides of the sheet pile (6). A tenon (4) and a mortise (5) are symmetrically arranged on the two narrow sides of the rectangular cavity formed by the upper mould (1) and the lower mould (2), and the cross section of the tenon (4) and the mortise (5) is arc-shaped or trapezoidal, and the two are matched with each other.

2. The concrete centrifugal contoured sheet pile forming mold of claim 1, wherein: The four inner corners of the rectangular cavity are equidistant chamfers or equal-diameter round corners.

3. The concrete centrifugal contoured sheet pile forming mold of claim 1, wherein: The distance from the highest point of the side cavity (3) to the height of the rectangular cavity is not less than 50 mm.

4. The concrete centrifugal contoured sheet pile forming mold of claim 1, wherein: A crane lug is further arranged on the upper mould (1) and the lower mould (2) for hoisting.

5. The concrete centrifugal contoured sheet pile forming mold of claim 1, wherein: The locking device comprises a bolt and a locking nut, and the locking nut is connected with the bolt and locks the upper mould (1) and the lower mould (2).

6. The concrete centrifugal contoured sheet pile forming mold of claim 1, wherein: End plates are arranged at the two ends of the upper mould (1) and the lower mould (2), and a steel reinforcement cage is arranged in the rectangular cavity of the mould, and the end plates are provided with counterbores for limiting the main reinforcement heads of the steel reinforcement cage.

7. The concrete centrifugal contoured sheet pile forming mold of claim 1, wherein: The upper mould (1) and the lower mould (2) comprise a plurality of segments which are sequentially matched along the length direction, and one of the segments of the upper mould (1) and the lower mould (2) is arranged as a decorative segment.

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