Split type pipe pile mold for manufacturing large pipe pile

Abstract

The utility model discloses a split type pipe pile mould for manufacturing a large pipe pile, which is provided with a plurality of spliced pipe joint moulds, each pipe joint mould comprises an upper mould and a lower mould which are arranged in half up and down, side flanges are arranged on two sides of the upper mould and the lower mould, and the upper mould and the lower mould are connected through the side flanges. A plurality of threaded holes are formed in the side flanges side by side along the axis of the pipe pile, and pressing bolts are mounted at the threaded holes; a plurality of pressing bolts are arranged on the side flanges side by side along the axis of the pipe pile; the pressing bolt comprises a bolt body, a spring and a clamping nut, the clamping nut is welded to the side flange on one side, the end, provided with threads, of the bolt body penetrates into the threaded hole, and the bolt body is sleeved with the spring. According to the utility model, the pressing bolt is arranged, so that the upper die and the lower die are movably matched under the action of excitation by utilizing the elasticity of the pressing bolt, and the damage caused by the positioning of the existing bolt is avoided; and the elastic piece is arranged to help demolding, the demolding strength is reduced, and the demolding speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of production of large pipe piles, in particular to a split pipe pile mould for making large pipe piles. Background Art

[0002] Existing pipe pile molds are composed of several shells assembled through side flanges, and each component is divided into two halves, connected by welding and bolts. During the pipe pile production process, the mold rotates at high speeds and is subjected to excitation forces. This production method is very likely to cause damage to the mold joints, which can seriously affect production progress. In addition, after the pipe pile is formed, it needs to be demolded. The traditional demolding method is to lay a release layer inside the mold. Due to the large size and heavy weight of the pipe pile mold, the release layer alone is still not enough to quickly demold. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a split pipe pile mould which has a reasonable design, can protect the connection structure and is easy to demould, in view of the deficiencies of the existing technology.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A split pipe pile mold for making large pipe piles is provided with several spliced pipe segment molds, each pipe segment mold includes an upper mold and a lower mold arranged in half, side flanges are provided on both sides of the upper mold and the lower mold, the upper mold and the lower mold are connected through the side flanges, end flanges are provided at both ends of the upper mold and the lower mold, and adjacent pipe segment molds are connected through the end flanges. The characteristic is that several pressing bolts are arranged side by side on the side flanges along the axis of the pipe pile; the pressing bolts include a bolt body, a spring and a retaining nut, the retaining nut is welded to the side flange on one side, the threaded end of the bolt body is deeply inserted into the threaded hole, the spring is sleeved on the bolt body, and the bolt body is automatically popped out by the elastic force of the spring.

[0006] The technical problem to be solved by the present invention can also be achieved through the following technical solution, in which an elastic member for propping up the upper mold and the lower mold to assist in demolding is installed between the side flanges of the upper mold and the lower mold, and a placement groove for hiding the elastic member is provided on the contact surface of the side flange, and the notches of the placement grooves of the upper mold and the lower mold are facing each other; at least 3 elastic members are provided in the placement groove of each pipe segment mold.

[0007] The technical problem to be solved by the present invention can also be achieved through the following technical solution, wherein the elastic member is an arched elastic member, a U-shaped elastic member or a V-shaped elastic member.

[0008] The technical problem to be solved by the present invention can also be achieved through the following technical solution: the height of the elastic member is 1.5-2 times the depth of the placement groove.

[0009] The technical problem to be solved by the present invention can also be achieved through the following technical solution: reinforcing ribs are installed outside each pipe segment mold, and the reinforcing ribs are arranged along the axis of the pipe pile.

[0010] The technical problem to be solved by the present invention can also be achieved through the following technical solution: a plurality of excitation belts are installed outside each pipe segment mold, and the excitation belts are arranged at equal intervals.

[0011] The technical problem to be solved by the present invention can also be achieved through the following technical solution: a running wheel in contact with the driving wheel on the centrifugal forming machine is installed outside each pipe segment mold, and four running wheels are provided, matching the number of driving wheels on the centrifugal forming machine, and are arranged side by side along the axis of the pipe pile. The width of the running wheel is 300 mm and the thickness of the running wheel is 120 mm.

[0012] Compared with the prior art, the present invention utilizes the elasticity of a push-button bolt to achieve flexible coordination between the upper and lower molds under vibration, thus avoiding damage to the joint caused by conventional bolt positioning. Furthermore, by adding an elastic member to the side flange, the upper and lower molds can be stretched apart under the action of elastic force, facilitating demoulding, reducing demoulding strength, and increasing demoulding speed. The split-type pipe pile mold for manufacturing large pipe piles described in the present invention has a simple principle, a reasonable structure, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of a split pipe pile mold for making large pipe piles according to the present invention;

[0014] Figure 2 This is a structural diagram of the push bolt.

[0015] In the figure: 1-upper die, 2-lower die, 3-reinforcement rib, 4-running wheel, 5-excitation belt, 6-side flange, 7-press bolt, 8-end flange, 9-bolt body, 10-spring, 11-locking nut. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0018] Reference Figure 1 and Figure 2 , a split pipe pile mold for making large pipe piles, which is provided with several spliced pipe segment molds, each pipe segment mold includes an upper mold 1 and a lower mold 2 arranged in half, and the upper mold 1 and the lower mold 2 are semicircular. Side flanges 6 are provided on both sides of the upper mold 1 and the lower mold 2, and the upper mold 1 and the lower mold 2 are connected by the side flanges 6. End flanges 8 are provided at both ends of the upper mold 1 and the lower mold 2. Adjacent pipe segment molds are connected by the end flanges 8. Several pressing bolts 7 are arranged side by side on the side flanges 6 along the axis of the pipe pile; the pressing bolt 7 includes a bolt body 9, a spring 10 and a retaining nut 11. The retaining nut 11 is welded to the side flange 6 on one side, and the threaded end of the bolt body 9 is deeply inserted into the threaded hole. The spring 10 is sleeved on the bolt body 9, and the bolt body can automatically pop out by the elastic force of the spring.

[0019] An elastic member is installed between the side flanges of the upper and lower molds 1 and 2 to prop them apart and assist in demolding. A recess is provided on the contact surface of the side flanges to conceal the elastic member. The recesses of the upper and lower molds face each other, and the height of the elastic member is greater than the depth of the recess. Each pipe segment mold has at least three elastic members within its recess. These members are arranged side by side along the axis of the pipe pile to ensure that all parts of the pipe segment mold are stressed. These elastic members are arched, U-shaped, or V-shaped, and their height is 1.5-2 times the depth of the recess.

[0020] Reinforcing ribs 3 are installed outside each pipe segment mold, and the reinforcing ribs 3 are arranged along the axis of the pipe pile. Several excitation belts 5 are installed outside each pipe segment mold, and the excitation belts 5 are arranged at equal intervals. A running wheel 4 that contacts the driving wheel on the centrifugal molding machine is installed outside each pipe segment mold. There are four running wheels 4, which match the number of driving wheels on the centrifugal molding machine. The width of the running wheel is 300mm and the thickness of the running wheel is 120mm, which is sufficient to prevent damage during the production process. The above-mentioned reinforcing ribs 3, excitation belts 5 and running wheels 4 are all split, that is, they are spliced together from upper and lower parts, and the splicing parts are all connected by flanges. The running wheels need to cooperate with the reinforcing ribs.

[0021] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A split pipe pile mold for making large pipe piles, comprising a plurality of spliced pipe segment molds, each pipe segment mold comprising an upper mold and a lower mold arranged in half, with side flanges provided on both sides of the upper mold and the lower mold, the upper mold and the lower mold being connected via the side flanges, and end flanges provided at both ends of the upper mold and the lower mold, adjacent pipe segment molds being connected via the end flanges, characterized in that: A plurality of push bolts are arranged side by side along the axis of the pipe pile on the side flange; the push bolts include a bolt, a spring and a retaining nut, the retaining nut is welded to the side flange on one side, the threaded end of the bolt body is inserted into the threaded hole, the spring is sleeved on the bolt body, and the bolt body is automatically popped out by the elastic force of the spring.

2. A split pipe pile mold for making large pipe piles according to claim 1, characterized in that: An elastic member for holding the upper and lower dies apart to assist demoulding is installed between the side flanges of the upper and lower dies. A placement groove for hiding the elastic member is provided on the contact surface of the side flange, and the notches of the placement grooves of the upper and lower dies face each other.

3. A split pipe pile mold for making large pipe piles according to claim 2, characterized in that: The elastic member is an arched elastic member, a U-shaped elastic member or a V-shaped elastic member.

4. A split pipe pile mold for making large pipe piles according to claim 2, characterized in that: The height of the elastic member is 1.5-2 times the depth of the placement groove.

5. The split pipe pile mold for making large pipe piles according to claim 1, characterized in that: A reinforcing rib is installed outside each pipe segment mold, and the reinforcing rib is arranged along the axis of the pipe pile.

6. The split pipe pile mold for making large pipe piles according to claim 1, characterized in that: A plurality of excitation belts are installed outside each pipe segment mold, and the excitation belts are arranged at equal intervals.

7. The split pipe pile mold for making large pipe piles according to claim 1, characterized in that: A running wheel in contact with a driving wheel on a centrifugal forming machine is installed outside the pipe segment mold.

8. The split pipe pile mold for making large pipe piles according to claim 7, characterized in that: There are four running wheels, which are arranged side by side along the axis of the pipe pile. The width of the running wheels is 300 mm, and the thickness of the running wheels is 120 mm.

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