Centrifugal mold for manufacturing arch wave-shaped pile

Abstract

A centrifugal mold for manufacturing an arch wave-shaped pile comprises an upper mold and a lower mold, a first semicircular mold cavity and a second semicircular mold cavity are formed in the upper mold and the lower mold respectively, and the centrifugal mold is characterized in that partition plates and convex ribs extending in the length direction of the first mold cavity and the second mold cavity are arranged in the first mold cavity and the second mold cavity respectively and arranged at intervals; the partition plates and the convex ribs in the first die cavity are in central symmetry with the convex ribs of the partition plates in the second die cavity, an annular partition part is arranged in the middle between the upper die and the lower die, a through hole is formed in the middle of the partition part, and the first die cavity and the second die cavity form a front-back symmetrical structure by means of the partition part. The centrifugal mold has the advantages that the two centrosymmetric partition plates can divide the space in the cavity in a left-right symmetrical mode, the partition parts can divide the space in the cavity in a front-back symmetrical mode, four corrugated piles can be manufactured in the cavity, the production efficiency of the centrifugal mold is improved, and the production cost is reduced. Redundant concrete grout in the centrifugal mold can be poured out through the through hole in the partition part.

Description

Technical Field

[0001] This utility model relates to the field of concrete mold technology, and in particular to a centrifugal mold for manufacturing arch corrugated piles. Background Technology

[0002] Corrugated piles are a new type of prestressed concrete component. The pile body is semi-circular, with splicing grooves on both sides of the ring. The splicing grooves of two adjacent unit piles overlap to form a wave-shaped splicing wall. This splicing wall is suitable for water conservancy bank protection, landscape river channel renovation, waterway support, sheet pile wharves and other projects. It has a high overall cost performance and good aesthetics.

[0003] Existing molds for manufacturing corrugated piles are shown in Chinese utility model patent application number CN202321779811.7 (authorization announcement number CN220741575U), entitled "A mold for producing corrugated piles and a mold for producing pipe piles". The mold includes a pipe mold and a partition plate. The partition plate is perpendicular to the mold mating surface of the pipe mold and is symmetrically arranged along the axial direction of the pipe mold. The pipe mold is provided with through holes. The partition plate is connected to the pipe mold through the through holes by connecting bolts. Therefore, the mold can produce corrugated piles by centrifugal processing.

[0004] Although the aforementioned mold can manufacture corrugated piles using centrifugal methods, it can only produce two piles at a time, resulting in low production efficiency. Furthermore, the mold's partitions are symmetrically arranged along the mold's axis, causing the splicing grooves on both sides of the corrugated piles to have identical shapes. Therefore, the corrugated piles produced by this mold can only be spliced ​​into S-shaped splicing walls. Therefore, further improvements are needed to the centrifugal mold used for manufacturing arched corrugated piles. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a centrifugal mold that can manufacture at least four arched corrugated piles at one time, in view of the above-mentioned existing technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: the centrifugal mold for manufacturing arch corrugated piles includes an upper mold and a lower mold. The upper mold and the lower mold are respectively provided with a first mold cavity and a second mold cavity in a semi-circular shape. The first mold cavity and the second mold cavity are each provided with a partition plate and a rib extending along their length direction. The partition plate and the rib are spaced apart. The partition plate and the rib in the first mold cavity are symmetrical about the center of the rib of the partition plate in the second mold cavity. An annular partition part is provided in the middle between the upper mold and the lower mold. A through hole is provided in the middle of the partition part. The first mold cavity and the second mold cavity form a front-to-back symmetrical structure by means of the partition part.

[0007] To enable the corrugated piles manufactured by this centrifugal mold to be assembled into spliced ​​walls of other shapes, preferably, the partition plate has a protrusion on the side away from the rib, the protrusion extending along the length of the partition plate, and the shape between the rib and the partition plate matches the shape of the protrusion. The partition plate and rib allow the manufactured corrugated piles to have concave and convex stops; that is, the shape of the protrusion on the partition plate corresponds to the shape of the concave stop, and the rib corresponds to the shape of the clearance notch above the convex stop. Therefore, this centrifugal mold can manufacture corrugated piles with concave and convex stops, allowing the manufactured corrugated piles to be assembled into M-shaped or S-shaped spliced ​​walls, thus broadening the application range of this centrifugal mold.

[0008] To ensure that the shape between the rib and the partition plate matches the shape of the protrusion, preferably, the rib has two outer end faces, and the protrusion has two adjacent connecting surfaces. The angle between the outer end face near the partition plate and the upper mold matches the angle between the two connecting surfaces. This matching of the angle between the outer end face of the rib and the upper mold and the angle between the two connecting surfaces allows the shape between the rib and the partition plate to match the shape of the protrusion. In other words, the concave stop and convex stop of the corrugated pile manufactured by the centrifugal mold correspond, and the convex stop of one corrugated pile can be inserted into the concave stop of an adjacent corrugated pile, thereby forming a spliced ​​wall.

[0009] As an improvement, the partition divides the first mold cavity into a first left mold cavity and a first right mold cavity, which are adjacent to each other. The partition also divides the second mold cavity into a second left mold cavity and a second right mold cavity, which are adjacent to each other. When the upper and lower molds are closed, the first left mold cavity and the second left mold cavity form a first cavity for manufacturing corrugated piles, and the first right mold cavity and the second right mold cavity form a second cavity for manufacturing corrugated piles. When the upper and lower molds are closed, the first mold cavity and the second mold cavity can form a cavity for manufacturing corrugated piles. The partition divides the cavity into a centrally symmetrical first cavity and a second cavity. The first cavity is approximately located on the left side of the cavity, and the second cavity is located on the right side of the cavity, thus enabling the centrifugal mold to manufacture at least four corrugated piles at a time.

[0010] Furthermore, the ribs are disposed in the first right mold cavity and the second left mold cavity, and the protrusions are disposed in the first left mold cavity and the second right mold cavity.

[0011] To ensure that the corrugated piles manufactured by the centrifugal mold have a wedge-shaped surface, preferably, the partition portion is provided with a chamfered portion along the length of the upper or lower mold, and the chamfered portion has an inwardly inclined slope. A wedge angle is formed on one side of the corrugated pile tail, meaning that the outer surface of the pile tail side has a wedge-shaped surface that gradually slopes inward and extends to the end face of the pile tail. During the driving process, the pile tail wedge angle creates a soil-squeezing effect on the soil, pushing the sheet pile closer to the side of the adjacent preceding sheet section, ensuring a tighter bond between the two adjacent sheet sections and resulting in higher retaining strength formed by the sheet pile combination. This application provides a chamfered portion on the partition portion, with the chamfered surface corresponding to the wedge-shaped surface, thereby enabling the corrugated piles manufactured by the centrifugal mold to have the aforementioned wedge-shaped surface.

[0012] Furthermore, the partition includes two annular plates and a sleeve installed between the two plates. The outer diameter of the sleeve is equal to the inner diameter of the plates, and the cavity in the center of the sleeve is a through hole. Filling material is poured between the two plates and the sleeve. The plates of the partition can separate the first mold cavity and the second mold cavity, and the filling material of the partition can prevent concrete slurry from leaking out of the centrifugal mold.

[0013] Compared with existing technologies, the advantages of this invention are as follows: When the upper and lower molds are closed, the first mold cavity and the second mold cavity combine to form a circular cavity for manufacturing corrugated piles. Two centrally symmetrical partitions can symmetrically divide the space inside the cavity from left to right, and the partition can symmetrically divide the space inside the cavity from front to back, allowing 2n (n = 2, 3, 4...) corrugated piles to be manufactured within the cavity, thereby improving the production efficiency of the centrifugal mold. Furthermore, the through holes on the partitions allow excess concrete slurry inside the centrifugal mold to be poured out, saving materials and reducing production costs. In addition, the partitions and ribs enable the manufacture of corrugated piles with concave and convex stops, and the corrugated piles can be spliced ​​together to form a spliced ​​wall. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 This is a structural schematic diagram of an embodiment of the present invention from another perspective (the upper mold and the lower mold are in a semi-sectional view);

[0016] Figure 3 This is a schematic diagram of the upper mold in an embodiment of the present invention;

[0017] Figure 4 This is a top view of the upper and lower molds in the closed state in an embodiment of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the partition and the chamfered part in the embodiment of this utility model;

[0019] Figure 6 This is a schematic diagram of the partition portion in an embodiment of the present utility model;

[0020] Figure 7 A schematic diagram of the structure for manufacturing a corrugated pile according to an embodiment of this utility model;

[0021] Figure 8 A schematic diagram of the structure of the corrugated pile manufactured according to an embodiment of this utility model. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-8 As shown, this is the preferred embodiment of the present invention.

[0024] The centrifugal mold of this embodiment includes an upper mold 2 and a lower mold 3. The upper mold 2 and the lower mold 3 are respectively provided with a first mold cavity 21 and a second mold cavity 31 in a semi-circular shape. The diameter of the first mold cavity 21 is the same as the diameter of the second mold cavity 31. The first mold cavity 21 and the second mold cavity 31 are each provided with a partition 4 and a rib 5 extending along their length direction. The partition 4 and the rib 5 are spaced apart. The partition 4 divides the first mold cavity 21 into a first left mold cavity 211 and a first right mold cavity 212 that are adjacent to each other. The partition 4 divides the second mold cavity 31 into a second left mold cavity 311 and a second right mold cavity 312 that are adjacent to each other. When the upper mold 2 and the lower mold 3 are closed, the first left mold cavity 211 and the second left mold cavity 311 form a first cavity for manufacturing corrugated piles. The first right mold cavity 212 and the second right mold cavity 312 form a second cavity for manufacturing corrugated piles. The first cavity is located approximately on the left side of the cavity, and the second cavity is located on the right side of the cavity.

[0025] like Figure 3 and Figure 4 As shown, in this embodiment, the partition 4 has a protrusion 41 on the side away from the rib 5. The protrusion 41 extends along the length of the partition 4. The partition 4 and the rib 5 in the first mold cavity 21 are symmetrical about the rib 5 of the partition 4 in the second mold cavity 31. The rib 5 is disposed in the first right mold cavity 212 and the second left mold cavity 311, and the protrusion 41 is disposed in the first left mold cavity 211 and the second right mold cavity 312. In this embodiment, the shape between the rib 5 and the partition 4 matches the shape of the protrusion 41. Specifically, the rib 5 in this embodiment has two outer end faces 51, and the protrusion 41 has two adjacent connecting faces 411. The included angle between the outer end face 51 near the partition 4 and the upper mold 2 matches the included angle between the two connecting faces 411. That is, the concave stop 13 made by the protrusion 41 of the partition 4 and the convex stop 14 made by the rib 5 correspond to the concave stop 13 and the convex stop 14. The convex stop 14 of one corrugated pile can be inserted into the concave stop 13 of another adjacent corrugated pile, thereby forming a splicing wall.

[0026] like Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, an annular partition 6 is provided in the middle between the upper mold 2 and the lower mold 3. The partition 6 is perpendicular to the upper mold 2 and the lower mold 3. A through hole 61 is provided in the middle of the partition 6, which allows excess concrete slurry in the centrifugal mold to be poured out. The first mold cavity 21 and the second mold cavity 31 form a front-to-back symmetrical structure with the help of the partition 6, so that the centrifugal mold can produce four corrugated piles at one time. If there are multiple partitions 6 between the upper mold 2 and the lower mold, the centrifugal mold can produce 2n (n = 2, 3, 4...) corrugated piles at one time, thereby improving the production efficiency of the centrifugal mold. In this embodiment, the partition 6 includes two annular plates 62 and a sleeve 63 installed between the two plates 62. The outer diameter of the sleeve 63 is equal to the inner diameter of the plates 62. The cavity in the center of the sleeve 63 is the through hole 61. Filling material is poured between the two plates 61 and the sleeve 62. The filling material of the partition 6 can prevent concrete slurry from leaking out of the centrifugal mold. In addition, the partition part 6 of this embodiment is provided with a chamfered part 7 arranged along the length direction of the upper mold 2 or the lower mold 3. The chamfered part 7 has an inwardly inclined slope 71. A wedge angle is formed on one side of the pile tail of the corrugated pile, that is, the outer side of the pile tail has a wedge-shaped surface that gradually inclines inward and extends to the end face of the pile tail. In this way, during the driving process of the sheet pile, the pile tail wedge angle will form a soil squeezing effect on the soil. During the driving process, the sheet pile can be squeezed close to the side of the adjacent previous plate, ensuring that the two adjacent plates are more tightly connected and the retaining strength formed by the sheet pile combination is higher. In this application, the partition part 6 is provided with a chamfered part 7, and the slope 71 of the chamfered part 7 corresponds to the wedge-shaped surface, so that the corrugated pile manufactured by the centrifugal mold has the above-mentioned wedge-shaped surface.

[0027] The workflow of this embodiment is as follows: First, the upper mold 2 and the lower mold 3 are closed. Then, concrete is poured into the first mold cavity 21 and the second mold cavity 31 for material distribution. After the material distribution is completed, the centrifugal mold is suspended on a centrifuge. Through centrifugal forming, the centrifugal mold produces four corrugated piles at once. The protrusion 41 of the partition plate 4 forms the concave stop 13 of the corrugated pile, and the convex stop 14 is formed by the convex rib 5. The chamfer 7 can form a wedge angle at the tail of the pile body 1. Finally, the four pile bodies 1 that have been manufactured are poured out to produce the desired corrugated piles. The manufactured corrugated piles are as follows: Figure 8 As shown.

Claims

1. A centrifugal mold for manufacturing arched corrugated piles, comprising an upper mold (2) and a lower mold (3), wherein the upper mold (2) and the lower mold (3) are respectively provided with a first mold cavity (21) and a second mold cavity (31) in a semi-circular shape, characterized in that: The first mold cavity (21) and the second mold cavity (31) are each provided with a partition (4) and a rib (5) extending along their length direction. The partition (4) and the rib (5) are spaced apart. The partition (4) and the rib (5) in the first mold cavity (21) are symmetrical about the center of the rib (5) of the partition (4) in the second mold cavity (31). The middle part between the upper mold (2) and the lower mold (3) is provided with an annular partition (6). The middle part of the partition (6) is provided with a through hole (61). The first mold cavity (21) and the second mold cavity (31) form a front-to-back symmetrical structure by means of the partition (6).

2. The centrifuge mold according to claim 1, characterized in that: The partition (4) has a protrusion (41) on the side away from the rib (5). The protrusion (41) extends along the length of the partition (4). The shape between the rib (5) and the partition (4) matches the shape of the protrusion (41).

3. The centrifuge mold according to claim 2, characterized in that: The rib (5) has two outer end faces (51), and the protrusion (41) has two adjacent connecting faces (411). The angle between the outer end face (51) near the partition (4) and the upper mold (2) matches the angle between the two connecting faces (411).

4. The centrifuge mold according to claim 2, characterized in that: The partition (4) divides the first mold cavity (21) into a first left mold cavity (211) and a first right mold cavity (212) that are adjacent to each other. The partition (4) divides the second mold cavity (31) into a second left mold cavity (311) and a second right mold cavity (312) that are adjacent to each other. When the upper mold (2) and the lower mold (3) are in the closed state, the first left mold cavity (211) and the second left mold cavity (311) form a first cavity for manufacturing corrugated piles. The first right mold cavity (212) and the second right mold cavity (312) form a second cavity for manufacturing corrugated piles.

5. The centrifuge mold according to claim 4, characterized in that: The rib (5) is disposed in the first right mold cavity (212) and the second left mold cavity (311), and the protrusion (41) is disposed in the first left mold cavity (211) and the second right mold cavity (312).

6. The centrifuge mold according to claim 1, characterized in that: The partition (6) is provided with a chamfered part (7) arranged along the length direction of the upper mold (2) or the lower mold (3), and the chamfered part (7) has an inwardly inclined slope (71).

7. The centrifuge mold according to claim 1, characterized in that: The partition (6) includes two annular plates (62) and a sleeve (63) installed between the two plates (62). The outer diameter of the sleeve (63) is equal to the inner diameter of the plate (62). The cavity in the center of the sleeve (63) is a through hole (61). Filling material is poured between the two plates (62) and the sleeve (63).

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