Pipe pile cloth steel mold cover and manufacturing method thereof

Abstract

The application discloses a pipe pile material distribution steel mold cover and a manufacturing method thereof, relates to the technical field of pipe pile material distribution steel mold covers, and is based on partial improvement of a conventional pipe pile steel mold cover structure. The pipe pile material distribution steel mold cover adopts detachable side wing plates, a segmented assembly structure, an inverted trapezoidal / normal trapezoidal and circular arc combined inner cavity, and a high-strength lightweight manufacturing process, so that concrete materials can be accurately dropped into a pipe mold and uniformly distributed in the pipe mold, an upper inclined surface in a trapezoidal shape is formed and does not collapse, and the pipe pile material distribution steel mold cover is beneficial to the closing of a mold. The whole pipe pile material distribution steel mold cover can be assembled into a trapezoidal shape or a circular arc shape by segmenting detachable side wing plates according to the length and specifications of the pipe pile. The trapezoidal shape section is suitable for pile body distribution, and the circular arc shape section is suitable for a pipe pile end plate, a sleeve, and a pipe joint arc plate at a joint. The pipe pile material distribution steel mold cover can be flexibly assembled and applied according to the length of pipe pile process parameters. The detachable side wing plate is a key structure of the pipe pile material distribution steel mold cover and is mainly used to avoid the problem of mold leakage during the distribution process.

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 pipe body, it cannot accommodate the circular shape at the joint, and if it is designed to meet the circular shape at the joint, the pipe body material concrete 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 material concrete collapses and falls down, and subsequent manual shaping and cleaning are required, 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, and complex manufacturing, 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 various length specifications of pipe piles, 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 trapezoidal structure on the upper side of the cross section along the length direction of the upper die sleeve, and are semi-circular arc cavity structure on the lower side, the lower die sleeve is provided with a butt joint arc plate at the position corresponding to the semi-circular arc cavity structure, and a bending inclined position is arranged between the trapezoidal structure and the semi-circular arc cavity structure;

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

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

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

[0012] Further provided is that the 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 outer wall positions of the directional inclined plates close to each other are consistent with the inclination angles of the bending inclined positions in the semi-circular arc plates.

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

[0014] Further provided is that a screw rod is installed at the outer wall position of the directional inclined plate, and the 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 assembly stage, and specifically comprises the following contents:

[0016] The component processing stage: the semi-circular arc plate is obtained through cutting process and bending process, and the positioning jaw, the reinforcing rib plate and the nut seat are obtained at the outer side position of the semi-circular arc plate through welding process and drilling process, and finally the upper die sleeve is obtained;

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

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

[0019] Action two: install the side wing plate in 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] 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 compatible features include that 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, meets the circular shape of the joint, and avoids the problem of concrete material collapse of the pile body.

[0022] In combination with the above content, it can be understood that: 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 end plate, sleeve, and jointing arc plate profile of 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, and the limitations of traditional fixed structures are avoided. The key content is that the inner cavity section 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 side wing plate is installed. The circular arc section corresponds to the pipe pile end plate, sleeve, and jointing arc plate at the joint. The trapezoidal shape is beneficial for the concrete to form a slope without collapse after material distribution, and is also beneficial for covering the upper die. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of 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 prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[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 Figure 1 A lateral elevation view of part A in the present application.

[0026] Figure 3 A Figure 1Side front view of part B;

[0027] Figure 4 for Figure 1 A split diagram;

[0028] Figure 5 for Figure 4 Side front view of part A;

[0029] Figure 6 for Figure 4 Side front view of part B;

[0030] Figure 7 This is a schematic diagram of the upper mold sleeve in this invention;

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

[0032] Figure 9 A side front view of the upper mold sleeve after the side wing plates have been installed;

[0033] Figure 10 This is a schematic diagram of the casting process in this invention.

[0034] In the diagram: 1. Upper mold sleeve; 101. Semi-circular arc plate; 102. Nut seat; 2. Lower mold sleeve; 3. Reinforcing cage; 4. Side wing plate; 401. Screw rod; 5. Pile splicing arc plate. Detailed Implementation

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1: The fixing structure used in traditional concrete placement molds (including plastic and steel molds) is difficult to adapt to the diverse length requirements of piles. If the placement mold is made to fit the trapezoidal shape of the pile body, it cannot accommodate the circular shape at the joint. Conversely, if it is made to fit the circular shape at the joint, the concrete material in the pile body may collapse. These two contradictory requirements cannot be met simultaneously. This results in the placement mold and the lower mold not fitting effectively, leading to gaps, concrete leakage during placement, or the concrete material collapsing and falling off, requiring subsequent manual reshaping and cleaning, increasing workload and reducing efficiency. The following technical solution is proposed to address this issue:

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

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

[0039] The lower mold cover 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 semicircular arc plate 101 is provided with a wing plate 4, the semicircular arc cavity structure in the semicircular arc plate 101 forms a trapezoidal structure through the wing plate 4, the outer wall position of the semicircular 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 semicircular arc plate 101 is arranged in an inverted trapezoidal mode, and the trapezoidal structure of the lower side of the semicircular 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 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 cover 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 cover is placed by lifting with a crown block;

[0042] The distribution mold cover is the structure of the upper mold cover 1 in the present application, which is described with reference to Figures 1-4 The upper mold cover 1 is essentially composed of two semicircular arc plates 101, and the lower mold cover 2 is used to place the reinforcement cage 3, and finally a plurality of lower mold covers 2 can be combined into an integral structure through the cooperation of the end plate, the sleeve hoop and other structures of the pile connecting arc plate 5, and finally the upper mold cover 1 is placed on the lower mold cover 3, which is the basic content;

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

[0044] The key feature of this invention is that the upper part of the inner cavity of the steel mold sleeve is inverted trapezoidal in shape, which facilitates the falling of concrete material; the lower part originally has a slope and an arc (such as...). Figure 5 After installing side wing plate 4, it takes on a trapezoidal shape (e.g. Figure 6 The arc section corresponds to the end plate, sleeve and pile connecting arc plate 5 at the joint. The trapezoidal shape does not collapse after the concrete forms an inclined surface after the material is placed, and it is also conducive to covering the upper formwork.

[0045] Example 2: A key description of the side wing plate structure is provided below:

[0046] The side wing plate 4 is composed of an directional inclined plate and a positioning arc plate. The bending angles in the two semi-circular arc plates 101 are combined to form a trapezoidal shape. The outer wall positions of the directional inclined plates are close to each other and the inclination angle of the bending angles in the semi-circular arc plates 101 is consistent. The positioning arc plate is installed on the outer wall position of the directional inclined plate, and the curvature of the outer curved surface of the positioning arc plate is consistent with the curvature of the semi-circular 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 on the semi-circular arc plate 101 by the screw 401 and the nut seat 102.

[0047] Solution Description: Combining Figure 5 and Figure 6 right Figure 8 To explain, side wing plate 4 mainly consists of a directional inclined plate and a positioning arc plate. In conventional bending processes, a bending angle is set between the trapezoidal structure and the semi-circular cavity structure. See details... Figure 5 Therefore, it is formed in the installation of side wing plate 4. Figure 6 The structural characteristics of the structure require that the inclined surface of the outer wall on one side of the directional inclined plate be completely consistent with the bending angle, thus forming a positive trapezoidal structure.

[0048] The side wing plate 4 is directly fixed by a nut, forming a detachable structure with the screw 401 and nut seat 102. The key feature is the positioning arc plate. After the side wing plate 4 is fixed on the semi-circular arc plate 101, the positioning arc plate can be used to limit the tilt angle between the directional inclined plate and the bending inclined position and the position stability during the installation process.

[0049] The essence is as Figure 9 As shown, the positioning arc plate can be precisely positioned in the middle of the semi-circular cavity structure and the directional inclined plate, thus forming a relatively stable trapezoidal structure. After the side wing plate 4 is installed in the pile body material placement area, the cross-section of the inner cavity of the steel mold sleeve is trapezoidal. The side wing plate 4 is not installed at the joint, maintaining the arc shape. The length of the side wing plate 4 after installation is longer than the length of the pile connecting arc plate 5, and it can be inserted into the lower mold sleeve 2.

[0050] Example 3: The manufacturing process will be explained in conjunction with Examples 1 and 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 a cutting process and a bending process, and positioning clamping jaws, reinforcing rib plates and nut seats 102 are obtained through a welding process and a drilling process at the outer side of the semicircular arc plate 101, and finally an 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 the 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 the 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 corresponding steel mold sleeve of the upper mold sleeve 1, 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] The stability of the 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] 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 pipe pile material distribution steel mold cover comprising an upper mold cover (1), a lower mold cover (2), and a reinforcement cage (3), characterized in that, The upper die sleeve (1) is composed of two symmetrical semicircular arc plates (101), and the reinforcement cage (3) is arranged at the middle position of the upper die sleeve (1) and the lower die sleeve (2); The upper side part of the two semicircular arc plates (101) in the length direction of the upper die sleeve (1) is in an inverted trapezoidal structure, and the lower side part is in a semicircular arc cavity structure, the lower die sleeve (2) is provided with a pile connecting arc plate (5) at the position corresponding to the semicircular arc cavity structure, and a bending inclined position is arranged between the trapezoidal structure and the semicircular arc cavity structure; The lower die sleeve (2) is sequentially assembled along the length direction thereof through the pile connecting arc plate (5), the lower side position of the inner wall of the semicircular arc plate (101) is provided with a wing plate (4), and the semicircular arc cavity structure in the semicircular arc plate (101) forms a right trapezoidal structure through the wing plate (4); The wing plate (4) is composed of a directional inclined plate and a positioning arc piece, the bending inclined positions in the two semicircular arc plates (101) are combined to form a right trapezoidal state, and the outer wall positions of the directional inclined plates close to each other are consistent with the inclination angles of the bending inclined positions in the semicircular arc plates (101); The positioning arc piece is installed at the outer wall position of the directional inclined plate, and the curvature of the outer side curve of the positioning arc piece is consistent with the curvature of the semicircular arc cavity structure.

2. A tubular pile material steel form according to claim 1, wherein, The outer wall position of the semicircular arc plate (101) is sequentially welded with a positioning clamping jaw, a reinforcing rib plate and a nut seat (102) along the length direction thereof.

3. A tubular pile material steel form according to claim 2, wherein, The outer wall position of the directional inclined plate is provided with a screw rod (401), and the wing plate (4) is fixed on the semicircular arc plate (101) through the screw rod (401) and the nut seat (102).

4. A method for manufacturing a pipe pile material distribution steel mold cover using the pipe pile material distribution steel mold cover according to claim 3, characterized by, It comprises a component processing stage and an assembly stage, and specifically comprises the following contents: The component processing stage: the semicircular arc plate (101) is obtained through cutting process and bending process, and the positioning clamping jaw, the reinforcing rib plate and the nut seat (102) are obtained at the outer side position of the semicircular arc plate (101) through welding process and drilling process, and finally the upper die sleeve (1) is obtained; The assembly stage: according to the production requirements, the pile connecting arc plate (5) and the reinforcement cage (3) are assembled in the lower die sleeve (2), and the following actions are set in the assembly stage according to the component processing stage: Action one: according to the inclination angle of the bending inclined 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 and the screw rod (401) is welded with the nut seat (102) through the welding process; Action two: the wing plate (4) is installed at the position of the material distribution area in the corresponding steel die sleeve of the upper die sleeve (1) to form a trapezoidal structure of the semicircular arc cavity structure, and the wing plate (4) is not installed at the joint of the steel die sleeve to reserve the semicircular arc cavity structure.

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