Pipe pile material distribution steel die sleeve and manufacturing method thereof

Abstract

The invention discloses a tubular pile material distribution steel die sleeve and a manufacturing method thereof, relates to the technical field of tubular pile material distribution steel die sleeves, is locally improved based on a conventional tubular pile steel die sleeve structure, and adopts detachable side wing plates, a segmented assembly structure, an inverted trapezoidal / regular trapezoidal and arc combined inner cavity and a high-strength lightweight manufacturing process. Concrete materials can accurately fall into the pipe die and are evenly distributed in the pipe die, a trapezoid inclined face is formed on the upper portion of the pipe die and does not collapse, die closing is facilitated by covering the die, detachable side wing plates can be assembled on the whole material distribution steel die sleeve in a segmented mode according to the length specification of a pipe pile to form a trapezoid shape or an arc shape, and the trapezoid-shaped section is matched with pile body material distribution. The circular-arc-shaped section is matched with the pipe pile end plate, the hoop and the pile splicing circular-arc-shaped plate at the joint and can be flexibly assembled and applied according to the technological parameter length of the pipe pile, the key structure is a detachable side wing plate, and the problems of mold closing leakage in the material distribution process are mainly solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe pile material distribution steel mold cover, in particular to a pipe pile material distribution steel mold cover and a manufacturing method thereof. BACKGROUND

[0002] The material distribution section in the production process of prestressed high-strength concrete pipe piles is particularly important, directly affecting the structural uniformity, mechanical properties, quality stability, production efficiency and production cost of the pipe piles, and the conventional production method mainly uses long-distance pipe pile molds, which can refer to the technical content in CN221872501U and CN103046545A.

[0003] During production, there are usually 2 to 3 short pipe piles connected in the long pipe pile mold, and the pipe body is inclined to prevent the concrete from collapsing, so the corresponding material distribution mold cover is trapezoidal in shape, and the pipe pile end plate, sleeve and joint arc plate at the joint are circular in shape, and the corresponding material distribution mold cover needs to maintain the arc shape, and the length of the pipe pile is determined according to the process parameters, and the joint is not fixed at the same position, which causes the problem that the fixed structure of the traditional material distribution mold cover (including plastic and steel mold cover) cannot adapt to the diversified length pile type requirements;

[0004] For example, if the material distribution mold cover is suitable for the trapezoidal shape of the pile body, it cannot accommodate the circular shape at the joint, and if it is designed to meet the circular shape at the joint, the concrete at the pile body will collapse, which is contradictory and cannot be achieved, resulting in the material distribution mold cover and the lower mold cannot be effectively matched, there are gaps, concrete is leaked during material distribution, or the concrete at the pile body collapses and falls down, which needs to be manually reshaped and cleaned, increasing the workload and reducing the efficiency. SUMMARY

[0005] The purpose of the present application is to provide a pipe pile material distribution steel mold cover and a manufacturing method thereof, which is suitable for the material distribution process in the production process of high-strength concrete pipe piles, to solve the problems of poor adaptability of traditional material distribution mold cover, easy collapse of concrete, complex manufacturing, etc., significantly improve the efficiency and quality of pipe pile production, and has wide industrial application value;

[0006] The following objectives are achieved: simple operation, high production efficiency, uniform material distribution, no collapse, good forming effect, can adapt to pipe piles of various lengths, reasonable design structure, good rigidity, high strength, not easy to deform, long service life.

[0007] The purpose of the present application can be achieved by the following technical scheme: a pipe pile material distribution steel mold cover, comprising an upper mold cover, a lower mold cover and a steel reinforcement cage, the upper mold cover is composed of two symmetrical semicircular arc plates, and the steel reinforcement cage is arranged at the middle position of the upper mold cover and the lower mold cover.

[0008] Two said semi-circular arc plates are in trapezoidal structure on the upper side of the cross section along the length direction of the upper die sleeve and are in semi-circular arc cavity structure on the lower side, a butt joint arc plate is arranged at the position corresponding to the semi-circular arc cavity structure in the lower die sleeve, and a bending inclined position is arranged between the trapezoidal structure and the semi-circular arc cavity structure;

[0009] The lower die sleeve is sequentially assembled along the length direction thereof through the butt joint arc plate, a side wing plate is arranged at the lower side position of the inner wall of the semi-circular arc plate, and the semi-circular arc cavity structure in the semi-circular arc plate forms a trapezoidal structure through the side wing plate.

[0010] Further, a positioning clamping jaw, a reinforcing rib plate and a nut seat are sequentially welded at the outer wall position of the semi-circular arc plate along the length direction thereof.

[0011] Further, the trapezoidal structure at the upper side position of the semi-circular arc plate is arranged in an inverted trapezoidal manner, and the trapezoidal structure formed by the side wing plate at the lower side of the semi-circular arc plate is arranged in a normal trapezoidal manner.

[0012] Further, the side wing plate is composed of a directional inclined plate and a positioning arc piece, the bending inclined positions in the two semi-circular arc plates are combined to form a normal trapezoidal state, and the inclination angles of the outer wall positions of the directional inclined plates that are close to each other are consistent with the inclination angles of the bending inclined positions in the semi-circular arc plates.

[0013] Further, the positioning arc piece is installed at the outer wall position of the directional inclined plate, and the curvature of the outer side curved surface of the positioning arc piece is consistent with the curvature of the semi-circular arc cavity structure.

[0014] Further, a screw rod is installed at the outer wall position of the directional inclined plate, and the side wing plate is fixed on the semi-circular arc plate through the screw rod and the nut seat.

[0015] The application also provides a manufacturing method of the pipe pile material steel die sleeve, which comprises a component processing stage and an assembling stage and specifically comprises the following contents.

[0016] In the component processing stage, the semi-circular arc plate is obtained through cutting and bending processes, and the positioning clamping jaw, the reinforcing rib plate and the nut seat are obtained at the outer side position of the semi-circular arc plate through welding and drilling processes, so as to finally obtain the upper die sleeve.

[0017] In the assembling stage, the butt joint arc plate and the steel reinforcement cage are assembled in the lower die sleeve according to production requirements, and the following actions are set in the assembling stage according to the component processing stage.

[0018] Action one: in the component processing stage, the directional inclined plate and the positioning arc piece are obtained through the cutting process according to the inclination angles of the bending inclined positions, and the directional inclined plate and the positioning arc piece are welded through the welding process and the screw rod is welded in cooperation with the nut seat.

[0019] Action two: install the side wing plate on the position of the material distribution area in the upper die sleeve corresponding steel die sleeve and form the semicircular cavity structure into trapezoidal structure, and the joint in the steel die sleeve is not installed with side wing plate to keep the semicircular cavity structure.

[0020] The present application has the following advantages:

[0021] 1. The present application is mainly aimed at the prestressed high-strength concrete pipe pile in the prior art, and specifically aimed at the improvement of the upper die sleeve. The conventional upper die sleeve forms a trapezoidal structure and a semicircular arc structure through a bending process. However, a side wing plate is additionally provided for the semicircular arc structure at the local position. The side wing plate adopts a detachable structure (screw and nut column). The key position is that the curvature between the positioning arc piece and the semicircular arc structure is consistent, which ensures that the side wing plate can be accurately clamped in the semicircular arc plate. In combination with the conventional semicircular cavity structure, the purpose is to facilitate the stability of the pipe pile joint. The material distribution die sleeve is suitable for the trapezoidal shape of the pile body and takes into account the circular shape of the joint. It meets the circular shape of the joint and avoids the problem of concrete material collapse of the pile body.

[0022] 2. As can be understood from the above, the overall scheme adopts a detachable side wing plate, a segmented assembly structure, an inverted trapezoidal / orthogonal trapezoidal and circular arc combined inner cavity, and a high-strength lightweight manufacturing process. The semicircular cavity structure in the scheme is adapted to the profile of the end plate, sleeve, and joint pile arc plate at the pipe pile joint. Further, through the reinstallation process of the side wing plate, the material distribution requirements of pipe piles of different lengths are met, avoiding the limitations of traditional fixed structures. The key content is that the inner cavity of the material distribution steel die sleeve is in an inverted trapezoidal shape at the upper part, which is beneficial for the concrete material to fall in. The lower part is originally a slope and a circular arc, which becomes a trapezoidal shape after the installation of the side wing plate. The circular arc section corresponds to the pipe pile end plate, sleeve, and joint pile arc plate at the joint. The trapezoidal shape does not collapse after the concrete material is distributed, and it is also beneficial for covering the upper die. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0024] Figure 1 A structure diagram of a pipe pile material distribution steel die sleeve is provided for the present application.

[0025] Figure 2 A side view of part A in the figure. Figure 1 A side view of part A in the figure.

[0026] Figure 3 A side view of part A in the figure. Figure 1Lateral elevation view of section B;

[0027] Figure 4 for Figure 1 Split diagram of ;

[0028] Figure 5 for Figure 4 Lateral elevation view of section A;

[0029] Figure 6 for Figure 4 Lateral elevation view of section B;

[0030] Figure 7 Schematic diagram of the structure of the upper mold sleeve in the present invention;

[0031] Figure 8 This is a schematic structural diagram of the side wing plate in the lower die sleeve of the present invention;

[0032] Figure 9 Side elevation view after installing the side wing panels on the upper die set;

[0033] Figure 10 It is a schematic diagram of casting in the present invention.

[0034] In the figure: 1. Upper die sleeve; 101. Semicircular arc plate; 102. Nut seat; 2. Lower die sleeve; 3. Steel cage; 4. Side wing plate; 401. Screw; 5. Pile connecting arc plate. DETAILED DESCRIPTION

[0035] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Embodiment 1: The fixed structure adopted by the traditional distribution mold sleeve (including plastic and steel mold sleeves) is difficult to adapt to the requirements of various length pile types. If the distribution mold sleeve is made to fit the trapezoidal shape of the pile body distribution, it cannot take into account the circular shape of the joint. If it is made to meet the circular shape of the joint, the pile body distribution concrete material will collapse. The two are contradictory and cannot be achieved at the same time. The distribution mold sleeve and the lower mold cannot be effectively fitted, there will be gaps, concrete material will leak during distribution, or the distribution concrete material will collapse and fall, and subsequent manual reshaping and cleaning will be required, which will increase the workload and reduce efficiency. The following technical solutions are proposed:

[0037] Reference Figures 1-10The pipe pile material steel mold sleeve in the embodiment comprises an upper mold sleeve 1, a lower mold sleeve 2 and a reinforcement cage 3, the upper mold sleeve 1 is composed of two symmetrical half circular arc plates 101, and the reinforcement cage 3 is arranged at the middle position of the upper mold sleeve 1 and the lower mold sleeve 2;

[0038] The upper side part of the two half circular arc plates 101 is in a trapezoidal structure and the lower side part is in a half circular arc cavity structure in the length direction of the upper mold sleeve 1, the lower mold sleeve 2 is provided with a pile connecting arc plate 5 at the position corresponding to the half circular arc cavity structure, and a bending inclined position is arranged between the trapezoidal structure and the half circular arc cavity structure;

[0039] The lower mold sleeve 1 is sequentially assembled along the length direction through the pile connecting arc plate 5, the lower side position of the inner wall of the half circular arc plate 101 is provided with a wing plate 4, the half circular arc cavity structure in the half circular arc plate 101 forms a trapezoidal structure through the wing plate 4, the outer wall position of the half circular arc plate 101 is sequentially welded with a positioning clamping jaw, a reinforcing rib plate and a nut seat 102 along the length direction, the trapezoidal structure of the upper side position of the half circular arc plate 101 is arranged in an inverted trapezoidal mode, and the trapezoidal structure of the lower side of the half circular arc plate 101 formed through the wing plate 4 is arranged in a right trapezoidal mode.

[0040] Basic principle: As a kind of concrete product, the prestressed high-strength concrete pipe pile (PHC pipe pile, hereinafter referred to as pipe pile) is a very important key process, which directly affects the structure uniformity, mechanical properties, quality stability, production efficiency and production cost of the pipe pile;

[0041] In the open distribution, in order to avoid the concrete falling on the stop groove of the pipe pile lower mold (hereinafter referred to as lower mold) or even falling outside the lower mold, a baffle is usually inserted and placed on the inner edge of the lower mold or a distribution mold sleeve is placed on the upper surface of the lower mold, the baffle is inserted and placed by manual insertion and removal, and the distribution mold sleeve is placed by lifting with a crown block;

[0042] The distribution mold sleeve is the structure of the upper mold sleeve 1 in the present application, which is described with reference to Figures 1-4 The upper mold sleeve 1 is essentially composed of two half circular arc plates 101, and the lower mold sleeve 3 is used for placing the reinforcement cage 3, and finally a plurality of lower mold sleeves 3 can be combined into an integrated structure through the cooperation of the end plate, sleeve hoop and other structures of the pile connecting arc plate 5, and finally the upper mold sleeve 1 is placed on the lower mold sleeve 3, which is the basic content;

[0043] In order to facilitate the discharging action in the distribution process, the upper side part of the half circular arc plate 101 forms an inverted trapezoidal structure through the bending process, as shown in the structure of Figure 5 And the lower side position of the half circular arc plate 101 also forms a half circular arc cavity structure which completely matches the outer wall of the pile connecting arc plate 5, in order to facilitate the outer wall of the pile connecting arc plate 5;

[0044] The key content of the present invention is that the upper part of the inner cavity cross section of the distribution steel mold sleeve is in an inverted trapezoidal shape, which is conducive to the falling of concrete materials; the lower part is originally an inclined surface and an arc (such as Figure 5 ), after installing the side wing plate 4, it becomes a trapezoidal shape (such as Figure 6 ), the arc cross section corresponds to the end plate, hoop and pile arc plate 5 at the joint, and the trapezoidal shape forms an inclined surface after the concrete is laid and does not collapse, and is also conducive to covering the upper mold.

[0045] Example 2: The side wing plate structure is mainly described as follows:

[0046] The side wing plate 4 is composed of a directional inclined plate and a positioning arc piece. The bending and oblique positions in the two semicircular arc plates 101 are combined to form a regular trapezoidal state. The outer wall positions of the directional inclined plates close to each other are consistent with the inclination angle of the bending and oblique positions in the semicircular arc plates 101. The positioning arc piece is installed on the outer wall position of the directional inclined plate, and the curvature of the outer curved surface in the positioning arc piece is consistent with the curvature in the semicircular arc cavity structure. A screw 401 is installed on the outer wall position of the directional inclined plate, and the side wing plate 4 is fixed to the semicircular arc plate 101 through the screw 401 and the nut seat 102.

[0047] Solution Description: Combined Figure 5 and Figure 6 right Figure 8 For explanation, the side wing plate 4 is mainly composed of a directional inclined plate and a positioning arc piece. In the conventional bending process, a bending inclined position is set between the trapezoidal structure and the semicircular arc cavity structure. Figure 5 , then in the installation side wing plate 4 to form Figure 6 In order to achieve the structural characteristics, it is necessary to ensure that the outer wall slope of one side of the directional inclined plate is completely consistent with the bending slope, thus forming a regular trapezoidal structure;

[0048] The side wing plate 4 is directly fixed by a nut, and cooperates with the screw 401 and the nut seat 102 to form a detachable structure. The key content is the positioning arc piece. After the side wing plate 4 is fixed on the semicircular arc plate 101, in order to ensure the inclination angle between the directional inclined plate and the bent inclined position and the position stability during the installation process, the positioning arc piece can be used to limit it;

[0049] The essence of Figure 9 As shown, the positioning arc piece can be just stuck in the middle position of the semicircular arc cavity structure and the directional inclined plate, thereby forming a relatively stable trapezoidal structure. After the side wing plates 4 are installed in the pile body distribution area, the cross-section of the inner cavity of the steel mold sleeve is trapezoidal; the side wing plates 4 are not installed at the joints, and the arc shape is maintained. The length of the side wing plates 4 after installation is longer than the length of the pile connecting arc plate 5, and can be inserted into the lower mold sleeve 2.

[0050] Example 3: The manufacturing process is described in combination with Example 1 and Example 2:

[0051] The application also provides a manufacturing method of the steel mold sleeve for pipe pile, which comprises a component processing stage and an assembly stage, and specifically comprises the following contents.

[0052] The component processing stage: a semicircular arc plate 101 is obtained through cutting process and bending process, and positioning clamping jaws, reinforcing rib plates and nut seats 102 are obtained through welding process and drilling process at the outer side of the semicircular arc plate 101, and finally the upper mold sleeve 1 is obtained.

[0053] The assembly stage: according to production requirements, the pile connecting arc plate 5 and the steel reinforcement cage 3 are assembled in the lower mold sleeve 2, and the following actions are set in the assembly stage according to the component processing stage:

[0054] Action one: in the component processing stage, the directional inclined plate and the positioning arc piece are obtained through cutting process according to the inclination angle of the bending inclined position, and the directional inclined plate and the positioning arc piece are welded through welding process and the screw rod 401 is welded with the nut seat 102;

[0055] Action two: the side wing plate 4 is installed at the position of the material distribution area in the steel mold sleeve corresponding to the semicircular arc cavity structure of the upper mold sleeve 101, and the semicircular arc cavity structure is formed into a trapezoidal structure, and the side wing plate 4 is not installed at the joint of the steel mold sleeve to reserve the semicircular arc cavity structure.

[0056] The production process of the related components is shown as follows: in the cutting and bending process, the laser cutting technology is adopted to ensure the size accuracy of the steel plate, and the special mold is used in the bending process to control the arc angle, so as to avoid the thermal deformation caused by the traditional cutting and welding process. The key content is the structural change of the semicircular arc plate 101 after the installation of the side wing plate 4, and the conventional semicircular arc plate 101 structure is shown as Figure 5 , the structural characteristics of the side wing plate 4 in Figure 8 , the side wing plate 4 is installed in the semicircular arc plate 101 according to the nut fixing mode, and the position is shown in Figure 9 , and finally the structural characteristics shown in Figure 6 are formed.

[0057] And the comparison between Figure 10 and the conventional steel mold sleeve structure is as follows:

[0058] 1. Stability of concrete after material distribution: in the conventional form, the edge concrete is easy to collapse and needs a large amount of manual cleaning, while in the present application, the trapezoidal inclined surface accurately supports, the collapse rate is reduced, and the arc surface is not leaked.

[0059] 2. Multi-specification adaptability: the fixed structure in the conventional form cannot be compatible with different pile lengths and joint positions, while the present application adopts the form of detachable wing plate + segmented assembly, which is suitable for pipe piles of any length.

[0060] In summary: based on the conventional pipe pile steel mold set structure for local improvement, wherein the detachable side plate, segmented assembly structure, inverted trapezoidal / orthogonal trapezoidal and circular arc combined cavity and high strength lightweight manufacturing process, so that the concrete material can be accurately dropped into the pipe mold and uniformly distributed in the pipe mold, the upper inclined surface is formed in trapezoidal shape and does not collapse, which is beneficial to the cover mold for closing mold, the whole distribution steel mold set can be assembled according to the length of pipe pile specification, and the detachable side plate 4 can form trapezoidal shape or circular arc shape, the trapezoidal shape section is suitable for pile body distribution, and the circular arc shape section is suitable for pipe pile end plate, sleeve and joint arc plate at the joint, which can be flexibly assembled according to the length of pipe pile process parameters, wherein the key structure is the detachable side plate, which mainly avoids the problem of closing mold leakage during distribution.

[0061] The above is only an example and description of the structure of the present application, and those skilled in the art can make various modifications or supplements or use similar ways to replace, as long as it does not deviate from the structure of the invention or exceed the scope defined by the claims.

[0062] In the description of the present application, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0063] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and describes these embodiments in order to better explain the principles and practical application of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited by the claims and their entire scope and equivalents.

Claims

1. A steel mold sleeve for pipe pile material distribution, comprising an upper mold sleeve (1), a lower mold sleeve (2) and a steel cage (3), characterized in that: The upper die sleeve (1) is composed of two symmetrically arranged semicircular arc plates (101), and the steel cage (3) is arranged in the middle position between the upper die sleeve (1) and the lower die sleeve (2); The upper portion of the cross-section of the two semicircular arc plates (101) along the length direction of the upper die sleeve (1) is a trapezoidal structure, and the lower portion is a semicircular arc cavity structure. A pile connecting arc plate (5) is provided at a position corresponding to the semicircular arc cavity structure in the lower die sleeve (2), and a bend is provided between the trapezoidal structure and the semicircular arc cavity structure. The lower die sleeve (1) is assembled in sequence along its length direction through the connecting arc plate (5); a side wing plate (4) is provided at the lower side of the inner wall of the semicircular arc plate (101); and the semicircular arc cavity structure in the semicircular arc plate (101) forms a trapezoidal structure through the side wing plate (4).

2. The steel mold sleeve for pipe pile distribution according to claim 1, characterized in that: Positioning claws, a reinforcing rib plate and a nut seat (102) are welded in sequence along the length direction of the outer wall of the semicircular arc plate (101).

3. The steel mold sleeve for pipe pile distribution according to claim 1, characterized in that: The trapezoidal structure at the upper side of the semicircular arc plate (101) is arranged in an inverted trapezoidal manner, and the trapezoidal structure formed by the side wing plates (4) at the lower side of the semicircular arc plate (101) is arranged in a right trapezoidal manner.

4. The steel mold sleeve for pipe pile distribution according to claim 3, characterized in that: The side wing plate (4) is composed of a directional inclined plate and a positioning arc plate. The bent oblique positions in the two semicircular arc plates (101) are combined to form a regular trapezoidal state. The outer wall positions of the directional inclined plates close to each other are consistent with the inclination angle of the bent oblique positions in the semicircular arc plates (101).

5. The steel mold sleeve for pipe pile distribution according to claim 4, characterized in that: The positioning arc piece is installed on the outer wall of the directional inclined plate, and the curvature of the outer curved surface of the positioning arc piece is consistent with the curvature in the semicircular arc cavity structure.

6. The steel mold sleeve for pipe pile distribution according to claim 5, characterized in that: A screw rod (401) is installed on the outer wall of the directional inclined plate, and the side wing plate (4) is fixed on the semicircular arc plate (101) through the screw rod (401) and the nut seat (102).

7. A method for manufacturing a steel mold sleeve for pipe pile distribution, using a steel mold sleeve for pipe pile distribution according to any one of claims 1 to 6, characterized in that: It includes component processing and assembly stages, specifically including the following: Component processing stage: a semicircular arc plate (101) is obtained through a cutting process and a bending process, and a positioning claw, a reinforcing rib plate and a nut seat (102) are obtained on the outer side of the semicircular arc plate (101) through a welding process and a drilling process, and finally an upper die sleeve (1) is obtained; Assembly stage: according to production requirements, the pile arc plate (5) and the steel cage (3) are assembled in the lower die sleeve (2), and the following actions are set according to the component processing stage during the assembly stage: Action 1: in the component processing stage, according to the inclination angle of the bending oblique position and through the cutting process, the directional inclined plate and the positioning arc piece are obtained, and the directional inclined plate and the positioning arc piece are welded through the welding process and the screw (401) is welded with the nut seat (102); Action 2: Install side wing plates (4) at the position of the upper mold sleeve (101) corresponding to the cloth area in the steel mold sleeve and form the semicircular cavity structure into a trapezoidal structure. No side wing plates (4) are installed at the joints in the steel mold sleeve to retain the semicircular cavity structure.

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