Prefabricated mold and production method of prestressed composite prefabricated arched roof panel

Abstract

The present invention relates to the technical field of prefabricated molds for arched roof panels, specifically to a prefabricated mold for prestressed superimposed prefabricated arched roof panels and a production method, comprising a top mold, a bottom mold, an axial side mold, and a radial side mold, the four molds are molded together to form an arched mold cavity; a fixed end and a tensioning end located outside the arched film cavity; a unified fixing component and a control component located between the tensioning end and the arched mold cavity; wherein the top mold controls the unified fixing component to uniformly fix the tensioned prestressed tendons during the mold closing process through the control component. The prefabricated mold for prestressed superimposed prefabricated arched roof panels effectively integrates the tensioning technology into the mold, which is conducive to improving the integration degree and production efficiency of the concrete prefabricated parts production and processing process on the one hand, facilitating automated production and processing, and on the other hand, is conducive to improving the quality of the finished prefabricated parts.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated moulds for arched roof panels, in particular to a prefabricated mould for prestressed laminated prefabricated arched roof panels and a production method thereof. Background Art

[0002] Prestressed composite prefabricated arched roof panel (arched panel for short) is a building component that combines prestressed technology and prefabricated component technology. This building component not only has good mechanical properties, but also the application of this building component can significantly improve construction efficiency. The arched panel building component is produced and prefabricated on site, and constructed on a pedestal. The bottom arched panel building component uses the pedestal as a mold, and the upper arched panel building component uses the lower arched panel building component as a mold. The stacking construction and repeated production can produce 10-16 arches on a single pedestal. At the same time, the production of the arched panel building component occupies a small area, and the production mold is also made and assembled on site. Therefore, the size of the arched panel building component can be flexibly adjusted to meet the size requirements of multi-functional factory buildings and factory areas with limited site planning, and the layout of the building is more flexible. At present, the prefabrication production and processing technology of the arched panel building component mainly includes mold preparation, arrangement of steel cages and prestressed tendons, prestressed tendon tensioning, concrete pouring, and maintenance and demoulding.

[0003] At present, the mold structure for the production and processing of arched panel building components is usually simple, and the production and maintenance costs are relatively low, but it requires separate tensioning equipment and production steps, has a low degree of integration, is difficult to control quality, has low production efficiency, and is easy to affect the effect of prestressed tendon fixation and the quality of finished prefabricated parts. Summary of the invention

[0004] The present invention provides a prefabricated mold and a production method for a prestressed laminated prefabricated arched roof panel to solve the problems in the related art of low integration of concrete prefabricated parts production and processing molds, great difficulty in quality control, low production efficiency and easy impact on the quality of finished prefabricated parts.

[0005] The present invention provides a prefabricated mold for a prestressed prefabricated arched roof panel, which comprises a top mold, a bottom mold, an axial side mold and a radial side mold, which are molded together to form an arched mold cavity; a fixed end and a tensioning end located outside the arched mold cavity, a prestressed rib is arranged along the axial direction of the arched mold cavity and one end is fixedly connected to the fixed end and the other end is fixedly connected to the tensioning end, a number of prestressed ribs are distributed along the circumference of the arched mold cavity; a unified fixing component located between the tensioning end and the arched mold cavity, the unified fixing component comprising: a plurality of inner clamps are provided The fixed seat of the unit, the inner clamping unit corresponds to the prestressed tendon one by one, and the inner clamping unit includes symmetrically arranged inner clips, the inner clips are slidably connected to the fixed seat, and a movable seat with a plurality of outer limit holes is arranged, the outer limit holes correspond to the inner clamping units one by one, and the outer limit holes are wedge-fitted with the corresponding inner clips; a control component, the control component includes a pushing component and a limiting component, during the process of the top mold moving down to close the mold, the pushing component pushes the movable seat to make the outer limit holes cooperate with the corresponding inner clips to clamp and fix the prestressed tendon, and the limiting component limits the tensioning end to make the prestressed tendon stably in the tensioned state.

[0006] In one possible implementation, the pushing assembly includes a plurality of clamping members and a plurality of pushing members slidably provided with connecting ends, a plurality of guide members are provided on the movable seat, the guide members correspond to the clamping members one by one, the clamping members are connected to the top mold, and during the process of the top mold moving down to close the mold, the guide members limit the clamping members so that the top mold can be closed accurately, the clamping members press against the movable seat so that the outer limiting holes and the corresponding inner clips are tightly matched, and the pushing members control the movable seat to move toward the fixed seat before the clamping members press against the movable seat so that the outer limiting holes limit the corresponding inner clips.

[0007] In one possible implementation, the pushing member includes a lower pressure seat fixedly connected to a conversion rack, a conversion gear meshingly connected to the conversion rack, a feed sleeve fixedly connected to the conversion gear, a feed rod threadedly connected to the feed sleeve, and a connecting end connected to the end of the feed rod.

[0008] In one possible implementation, the clamping member includes a connecting seat slidably connected with a clamping end and a limiting end for limiting the clamping end, and the guide member limits the clamping end from both sides. During the process of the top mold moving down to close the mold, the guide member first limits the clamping end and maintains the limiting state to control the position accuracy of the top mold, and the limiting end then limits the clamping end so that the clamping end is firmly pressed against the movable seat, and the clamping end and the limiting end are wedge-shaped.

[0009] In one possible implementation, the number of the fixed seats is at least two and they are distributed along the axial direction of the arched mold cavity, the movable seats correspond to the fixed seats one by one and the movable seats are fixedly connected together by a plurality of connecting members, the plurality of connecting members are distributed along the axial direction of the arched mold cavity and the fixed seats between the connecting members and the movable seats are slidably connected.

[0010] In one possible implementation, a limiting connection assembly is arranged between the top mold and the axial side mold and the radial side mold. The limiting connection assembly includes a side limiting member and a corner limiting member. The side limiting member limits the axial side mold and the radial side mold separately from the side, and the corner limiting member limits the adjacent axial side molds and radial side molds at the corner points at the same time.

[0011] In one possible implementation, the corner point limiter includes a limit groove 1, a limit groove 2 and a limit block 1, the limit block 1 is fixedly installed on the top mold, the limit groove 1 is opened at the corner point of the top surface of the axial side mold, the limit groove 2 is opened at the corner point of the top surface of the radial side mold, and the limit groove 1 and the limit groove 2 are spliced ​​together to form an inclined corner point limit groove, and the corner point limit groove and the limit block 1 always cooperate to limit the axial side mold and the radial side mold at the same time.

[0012] A method for producing a prefabricated mold for a prestressed laminated prefabricated arched roof panel comprises the following steps: S1: supporting a bottom mold and laying prestressed tendons.

[0013] S2: Tension the prestressed tendons in S1 and lay the unstressed tendons, while supporting the axial side formwork and radial side formwork.

[0014] S3: Install the top mold so that it can be molded together with the bottom mold in S2 and the axial side mold and the radial side mold to form an arched mold cavity, and in the process of mold closing, the control component controls the unified fixing component to uniformly fix the prestressed tendons after tensioning.

[0015] S4: pouring concrete into the arched mold cavity in S3.

[0016] S5: Curing the concrete poured in S4, and after the concrete reaches the preset strength, cutting the prestressed tendons for tensioning, and finally demoulding after the concrete is completely hardened.

[0017] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. The top mold in the present invention controls the unified fixing component through the control component to uniformly fix the prestressed tendons after tensioning and limit the tensioning end during the mold closing process, so that the prestressed tendons after tensioning are stably in the tensioned state, and the entire prefabricated part manufacturing and processing process has high stability and reliability, and effectively integrates the tensioning technology into the mold. On the one hand, it is conducive to improving the integration degree and production efficiency of the concrete prefabricated part production and processing process, and is convenient for automated production and processing. On the other hand, it is conducive to improving the quality of the finished prefabricated parts.

[0018] 2. The pushing assembly in the present invention controls the feeding of the movable seat during the process of the top mold moving down to close the mold so that the outer limit hole cooperates with the inner clamp to fix the prestressed tendons in the tensioned state, and further presses the movable seat when the top mold is closed to ensure the stability of the position state of the movable seat. Secondly, the control assembly limits the top mold during the process of the top mold moving down to close the mold, thereby improving the accuracy of the top mold position, facilitating the top mold to accurately complete the closing work, and effectively improving the stability and reliability of the production and processing process as a whole.

[0019] 3. The top mold in the present invention is firmly connected with the axial side mold and the radial side mold through the limiting connection assembly, which improves the integrity of the overall structure and is beneficial to improving the stability and reliability of the production and processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic diagram of the overall structure of a prefabricated mold for a prestressed composite prefabricated arched roof panel provided in an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0022] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0023] Figure 4 It is a structural schematic diagram of an inner clip and an outer limiting hole of a prefabricated mold for a prestressed laminated prefabricated arched roof panel provided by an embodiment of the present invention.

[0024] Figure 5 It is a side structural schematic diagram of a pusher and a connecting end of a prefabricated mold for a prestressed laminated prefabricated arched roof panel provided by an embodiment of the present invention.

[0025] Figure 6 It is a front view structural schematic diagram of a fastening member of a prefabricated mold for a prestressed laminated prefabricated arched roof panel provided by an embodiment of the present invention.

[0026] Figure 7 It is a structural schematic diagram of a limiting component of a prefabricated mold for a prestressed composite prefabricated arched roof panel provided by an embodiment of the present invention.

[0027] Figure 8 It is a structural schematic diagram of a limiting connection component of a prefabricated mold for a prestressed composite prefabricated arched roof panel provided by an embodiment of the present invention.

[0028] In the figure: 1, top mold; 2, bottom mold; 3, axial side mold; 4, radial side mold; 5, fixed end; 6, tensioning end; 7, prestressed tendon; 8, unified fixing assembly; 81, fixed seat; 82, inner clamp; 83, outer limit hole; 84, movable seat; 85, connecting piece; 9, control assembly; 91, pushing assembly; 911, tightening piece; 9111, tightening end; 9112, connecting seat; 9113, limit end; 912, connecting end; 913, pushing piece; 9131, conversion rack; 9132 , lower pressure seat; 9133, conversion gear; 9134, feed sleeve; 9135, feed rod; 914, guide piece; 92, limit assembly; 921, control rack; 922, control sleeve; 923, control rod; 924, plug-in block; 925, plug-in slot; 10, limit connection assembly; 101, side limit piece; 111, limit slot three; 121, limit block two; 102, corner limit piece; 112, limit slot one; 122, limit slot two; 132, limit block one; 11, base. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0030] See also Figure 1 , Figure 2 , Figure 4 and Figure 8A prestressed composite prefabricated arched roof panel prefabricated mold comprises a top mold 1, a bottom mold 2, an axial side mold 3, a radial side mold 4 and a base 11; the axial side mold 3 is symmetrically distributed front to back, and the radial side mold 4 is symmetrically distributed left to right, and the axial side mold 3 and the radial side mold 4 are connected together end to end in sequence and fixedly installed on the bottom mold 2. The top mold 1 is arranged between the axial side mold 3 and the radial side mold 4 and forms an arched mold cavity. A pouring port is arranged on the arched mold cavity, and concrete enters the arched mold cavity through the pouring port. A fixed end 5 is arranged on the left side outside the arched membrane cavity, and a tensioning end 6 is arranged on the right side. The fixed end 5 and the bottom mold 2 are fixedly mounted on the base 11, and the tensioning end 6 is slidably mounted on the base 11 left and right. The prestressed tendons 7 are arranged along the axial direction of the arched mold cavity, and the number of prestressed tendons 7 is several and distributed along the circumference of the arched mold cavity. The left end of the prestressed tendons 7 is uniformly fixed on the fixed end 5, and the right end is uniformly fixed on the tensioning end 6. A unified fixing component 8 and The control component 9 automatically controls the unified fixing component 8 to fix the prestressed tendons 7 after tensioning during the process of the top mold 1 moving down to close the mold. At the same time, the control component 9 limits the tensioning end 6, so that the prestressed tendons 7 are stably in a tensioned state, and the drive of the tensioning end 6 can be removed, so that the tensioning end 6 is in a stable state without driving force during the process of slowly hardening and forming after concrete pouring. On the one hand, the stability and reliability of the prefabricated parts manufacturing process are improved, and the overall structure has a high degree of integration, which is conducive to automated production and processing and improving production efficiency. On the other hand, it is conducive to improving the quality of finished prefabricated parts.

[0031] See also Figure 1 , Figure 2 and Figure 4 The unified fixing assembly 8 includes a fixed seat 81 provided with a plurality of inner clamping units and a movable seat 84 provided with a plurality of outer limiting holes 83. The fixed seat 81 is fixedly mounted on the base 11, and the movable seat 84 is slidably connected to the base 11. The inner clamping units correspond to the prestressed tendons 7 one by one, and the inner clamping units include symmetrically arranged inner clips 82, and the inner clips 82 are slidably connected to the fixed seat 81. The outer limiting holes 83 correspond to the inner clamping units one by one, and the outer limiting holes 83 are wedge-shaped with the corresponding inner clips 82. Before the top mold 1 is closed, the outer limiting holes 83 are wedge-shaped with the corresponding inner clips 82. The positioning hole 83 and the corresponding inner clip 82 are in a non-tight contact state. At this time, the prestressed tendon 7 can smoothly pass through the outer limiting hole 83 and the symmetrical inner clip 82. During the process of the top mold 1 moving down to close the mold, the control component 9 controls the movable seat 84 to slide to the right to make the outer limiting hole 83 and the inner clip 82 to the right tightly contact. At this time, the symmetrical inner clip 82 is limited by the outer limiting hole 83, so that the inner clip 82 can firmly clamp and fix the passing prestressed tendon 7, and can effectively prevent the prestressed tendon 7 from resetting after tensioning.

[0032] See also Figure 1 , Figure 2, Figure 5 , Figure 6 and Figure 7 The control component 9 includes a pushing component 91 and a limiting component 92. During the process of the top mold 1 moving down to close the mold, the pushing component 91 pushes the movable seat 84 so that the outer limiting hole 83 cooperates with the corresponding inner clamping piece 82 to clamp and fix the prestressed tendon 7. The limiting component 92 limits the tensioning end 6 so that the prestressed tendon 7 is stably in a tensioned state. The pushing component 91 includes a plurality of fastening members 911 and a plurality of pushing members 913 slidably provided with connecting ends 912. The fastening members 911 and the pushing members 913 are both distributed along the axial direction of the arched mold cavity and the fastening members 911 and the pushing members 913 are staggered. A plurality of guide members 914 are provided on the movable seat 84, and the guide members 914 correspond to the fastening members 911 one by one. During the process of the top mold 1 moving down to close the mold, the guide member 914 limits the top mold 1 through the clamping member 911, so that the top mold 1 can accurately complete the mold closing, and the clamping member 911 presses against the movable seat 84 to limit the movable seat 84 so that the outer limiting hole 83 and the corresponding inner clamp 82 are closely matched. Before the clamping member 911 presses against the movable seat 84, the pushing member 913 controls the movable seat 84 to move to the right through the connecting end 912, so that the outer limiting hole 83 limits the corresponding inner clamp 82. Through the cooperation of the clamping member 911, the pushing member 913 and the guide member 914, the outer limiting hole 83 and the inner clamp 82 are stably and closely contacted and matched together, thereby improving the stability and reliability of the unified fixation of the prestressed tendons 7.

[0033] See also Figure 1 , Figure 2 and Figure 5 The pusher 913 includes a lower pressing seat 9132 fixedly connected to a conversion rack 9131, a conversion gear 9133 meshingly connected to the conversion rack 9131, a feed sleeve 9134 fixedly connected to the conversion gear 9133, a feed rod 9135 threadedly connected to the feed sleeve 9134, the conversion rack 9131 is vertically slidably connected to the base 11, the conversion gear 9133 and the feed sleeve 9134 are both rotatably connected to the base 11, the feed rod 9135 is slidably connected to the base 11 left and right, and the connecting end 912 is fixed to the feed rod The end of 9135 and the connecting end 912 are connected to the base 11 for left and right sliding; the lower pressure seat 9132 moves down as the top mold 1 moves down to close the mold, and the conversion rack 9131 thereon drives the feed sleeve 9134 to rotate through the conversion gear 9133, and then the feed sleeve 9134 makes the feed rod 9135 feed to the right, and then pushes the movable seat 84 to move to the right through the connecting end 912 and can instantly lock the movable seat 84 in the current position state, wherein the movable seat 84 can be reset by manual push or other methods during the subsequent reset process.

[0034] See also Figure 1 , Figure 2 , Figure 5 and Figure 6The abutting member 911 includes a connecting seat 9112 slidably connected with the abutting end 9111 and a limiting end 9113 for limiting the abutting end 9111. The connecting seat 9112 is fixedly connected to the top mold 1, and the limiting end 9113 is fixedly installed on the base 11. The guide member 914 limits the abutting end 9111 from the front and rear sides. During the process of the top mold 1 moving down to close the mold, the abutting end 9111 is first limited by the guide member 914 to improve the position accuracy of the top mold 1 and keep it in this position and continue to move down until the mold is closed. The limiting end 9113 limits the abutting end 9111 so that the abutting end 9111 is firmly pressed against the movable seat 84, and when the top mold 1 is about to complete the mold closing, the limiting end 9113 is just inserted into the connecting seat 9112 and is tightly pressed against the abutting end 9111 to limit the abutting end 9111. The limiting end 9113 and the abutting end 9111 are wedge-shaped, so that the abutting end 9111 is stably pressed against the movable seat 84 to limit the movable seat 84 when the top mold 1 is in the mold closing state, thereby improving the stability of the position state of the movable seat 84. In addition, when the top mold 1 moves downward, the abutting end 9111 is in a non-tightly pressed state with the movable seat 84 most of the time, which can help reduce the friction between the movable seat 84 and the abutting end 9111 and improve the smoothness of the mold closing process of the top mold 1, thereby helping to improve the stability and reliability of the preform production process.

[0035] See also Figure 1 and Figure 2 In order to further improve the stability of the clamping and fixing of the prestressed tendon 7 under the tensioning state, two groups of fixed seats 81 are set between the tensioning end 6 and the arched mold cavity, and the two groups of fixed seats 81 are distributed from left to right, the movable seat 84 corresponds to the fixed seat 81 one by one, and the two movable seats 84 are fixedly connected together by a plurality of connecting members 85, and the plurality of connecting members 85 are distributed along the axial direction of the arched mold cavity, and the fixed seat 81 between the connecting members 85 and the movable seat 84 is slidably connected, wherein the movable seat 84 on the left side close to the arched mold cavity synchronously drives the movable seat 84 on the right side to move right under the control of the control component 9, and two clamping and fixing points are formed on each prestressed tendon 7 through the cooperation of the outer limit hole wall 83 and the inner clamping piece 82, so as to improve the stability of the position state of the prestressed tendon 7, in addition, according to actual needs, a control component 9 and a unified fixing component 8 can be set between the arched mold cavity and the fixed end 5, so as to further improve the stability of the tensioning state of the prestressed tendon 7, and ensure the quality and safety of the prefabricated production and processing process and the quality of the finished prefabricated parts.

[0036] See also Figure 1 , Figure 3 and Figure 7The limiting assembly 92 includes a control rack 921 that is slidably connected to the base 11 and fixedly connected to the right movable seat 84, and a control sleeve 922 that is meshed with the control rack 921. A control rod 923 is threadedly connected to the control sleeve 922, and the control sleeve 922 is rotatably connected to the base 11. The control rod 923 is vertically slidably connected to the base 11. The top of the control rod 923 is fixedly connected to a plug-in block 924. A plug-in slot 925 corresponding to the plug-in block 924 is provided on the tensioning end 6. In the process of the movable seat 84 on the right and the movable seat 84 on the left sliding to the right synchronously, the control rack 921 is driven to move synchronously. The control rack 921 moves the control rod 923 upward through the control sleeve 922 until the plug-in block 924 is inserted into the corresponding plug-in slot 925, thereby limiting the tensioning end 6 and making the tensioning end 6 stable in the current state.

[0037] participate Figure 1 and Figure 8 A limiting connection assembly 10 is arranged between the top mold 1 and the axial side mold 3 and the radial side mold 4. The limiting connection assembly 10 includes a side limiting member 101 and a corner limiting member 102. The side limiting member 101 limits the axial side mold 3 and the radial side mold 4 separately from the side, and the corner limiting member 102 limits the adjacent axial side mold 3 and the radial side mold 4 from the corner point at the same time, so that the top mold 1 is firmly connected with the axial side mold 3 and the radial side mold 4, thereby improving the stability of the arched mold cavity. The limiting component 101 includes a limiting groove three 111 and a limiting block two 121. The limiting groove three 111 is provided on the top surface of the axial side mold 3 and the radial side mold 4. The limiting block two 121 is fixedly connected to the top mold 1. The limiting block two 121 corresponds to the limiting groove three 111 one by one and the two are wedge-shaped. When the top mold 1 moves down to close the mold, the limiting block two 121 is automatically inserted into the corresponding limiting groove three 111, so that the top mold 1 maintains an accurate position state and is stably connected with the axial side mold 3 and the radial side mold 4.

[0038] See also Figure 1 and Figure 8 The corner point stopper 102 includes a stopper groove 112, a stopper groove 2 122 and a stopper block 132. The stopper block 132 is fixedly mounted on the top mold 1. The stopper groove 112 is provided at the corner point of the top surface of the axial side mold 3. The stopper groove 2 122 is provided at the corner point of the top surface of the radial side mold 4. Figure 8 As shown, after the axial side mold 3 and the radial side mold 4 are installed and fixed, the corresponding limit groove 1 112 and the limit groove 2 122 are spliced ​​together to form an inclined corner point limit groove, and the limit block 132 is inserted into the corner point limit groove as the top mold 1 moves downward, and at the same time, the adjacent axial side mold 3 and radial side mold 4 at the corner point are limited to improve the stability of the connection state of the axial side mold 3 and the radial side mold 4.

[0039] A method for producing a prefabricated mold for a prestressed composite prefabricated arched roof panel comprises the following steps: S1: supporting a bottom mold 2 and laying prestressed tendons 7; S2: tensioning the prestressed tendons 7 in S1 and laying non-stressed tendons, and supporting an axial side mold 3 and a radial side mold 4 at the same time; S3: installing a top mold 1 so that the top mold 1 is molded together with the bottom mold 2, the axial side mold 3 and the radial side mold 4 in S2 to form an arched mold cavity, and in the process of mold closing, a control component 9 is used to control a unified fixing component 8 to uniformly fix the tensioned prestressed tendons 7; S4: pouring concrete into the arched mold cavity in S3; S5: curing the poured concrete in S4, and after the concrete reaches a preset strength, cutting off the prestressed tendons 7 to release the tension, and finally demolding the concrete after it is completely hardened to obtain a prefabricated concrete part.

[0040] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A prefabricated mold for a prestressed prefabricated arched roof panel, characterized in that: It comprises a top mold (1), a bottom mold (2), an axial side mold (3) and a radial side mold (4), which are combined to form an arched mold cavity; A fixed end (5) and a tensioning end (6) are located outside the arched mold cavity; a prestressed tendon (7) is arranged along the axial direction of the arched mold cavity and one end is fixedly connected to the fixed end (5) and the other end is fixedly connected to the tensioning end (6); a plurality of prestressed tendons (7) are distributed along the circumference of the arched mold cavity; A unified fixing assembly (8) is located between the tensioning end (6) and the arched mold cavity; the unified fixing assembly (8) comprises: a fixing seat (81) provided with a plurality of inner clamping units, the inner clamping units correspond one-to-one with the prestressed tendons (7), and the inner clamping units comprise symmetrically arranged inner clips (82), the inner clips (82) are slidably connected to the fixing seat (81), and a movable seat (84) is provided with a plurality of outer limiting holes (83), the outer limiting holes (83) correspond one-to-one with the inner clamping units, and the outer limiting holes (83) are wedge-matched with the corresponding inner clips (82); A control component (9), wherein the control component (9) comprises a pushing component (91) and a limiting component (92). When the top mold (1) moves downward to close the mold, the pushing component (91) pushes the movable seat (84) so ​​that the outer limiting hole (83) cooperates with the corresponding inner clamp (82) to clamp and fix the prestressed tendon (7). The limiting component (92) limits the tensioning end (6) so that the prestressed tendon (7) is stably in a tensioned state.

2. The prefabricated mold for prestressed composite prefabricated arched roof panels according to claim 1, characterized in that: The pushing assembly (91) comprises a plurality of abutting members (911) and a plurality of pushing members (913) slidably provided with connecting ends (912); a plurality of guiding members (914) are provided on the movable seat (84); the guiding members (914) correspond to the abutting members (911) one by one; the abutting members (911) are connected to the top mold (1); when the top mold (1) moves down to close the mold, the guiding members (914) limit the abutting members (911) so that the top mold (1) is accurately closed; the abutting members (911) abut the movable seat (84) so ​​that the outer limiting holes (83) are closely matched with the corresponding inner clips (82); and before the abutting members (911) abut the movable seat (84), the pushing members (913) control the movable seat (84) to move toward the fixed seat (81) so that the outer limiting holes (83) limit the corresponding inner clips (82).

3. The prefabricated mold for prestressed composite prefabricated arched roof panels according to claim 2, characterized in that: The pushing member (913) comprises a lower pressing seat (9132) fixedly connected to a conversion rack (9131), a conversion gear (9133) meshingly connected to the conversion rack (9131), a feeding sleeve (9134) fixedly connected to the conversion gear (9133), a feeding rod (9135) threadedly connected to the feeding sleeve (9134), and a connecting end (912) connected to the end of the feeding rod (9135).

4. A prestressed composite prefabricated arched roof panel prefabricated mold according to claim 2 or 3, characterized in that: The abutting member (911) comprises a connecting seat (9112) slidably connected with a abutting end (9111) and a limiting end (9113) for limiting the abutting end (9111). The guide member (914) limits the abutting end (9111) from both sides. During the process of the top mold (1) moving down to close the mold, the guide member (914) first limits the abutting end (9111) and maintains the limiting state to control the position accuracy of the top mold (1). The limiting end (9113) then limits the abutting end (9111) so that the abutting end (9111) is firmly pressed against the movable seat (84), and the abutting end (9111) and the limiting end (9113) are wedge-shaped.

5. The prefabricated mold for prestressed composite prefabricated arched roof panels according to claim 1, characterized in that: The number of the fixed seats (81) is at least two and they are distributed along the axial direction of the arched mold cavity; the movable seats (84) correspond to the fixed seats (81) one by one and the movable seats (84) are fixedly connected together through a plurality of connecting members (85); the plurality of connecting members (85) are distributed along the axial direction of the arched mold cavity and the fixed seats (81) between the connecting members (85) and the movable seats (84) are slidably connected.

6. The prefabricated mold for prestressed composite prefabricated arched roof panels according to claim 1, characterized in that: A limiting connection assembly (10) is arranged between the top mold (1) and the axial side mold (3) and the radial side mold (4), and the limiting connection assembly (10) comprises a side limiting member (101) and a corner limiting member (102), wherein the side limiting member (101) limits the axial side mold (3) and the radial side mold (4) separately from the side, and the corner limiting member (102) limits the adjacent axial side mold (3) and radial side mold (4) at the corner point at the same time.

7. The prefabricated mold for prestressed composite prefabricated arched roof panels according to claim 6, characterized in that: The corner point limiting member (102) comprises a limiting groove 1 (112), a limiting groove 2 (122) and a limiting block 1 (132); the limiting block 1 (132) is fixedly mounted on the top mold (1); the limiting groove 1 (112) is arranged at the corner point of the top surface of the axial side mold (3); the limiting groove 2 (122) is arranged at the corner point of the top surface of the radial side mold (4); and the limiting groove 1 (112) and the limiting groove 2 (122) are spliced ​​together to form an inclined corner point limiting groove; the corner point limiting groove and the limiting block 1 (132) cooperate with each other to limit the axial side mold (3) and the radial side mold (4) at the same time.

8. A method for producing a prefabricated mold for a prestressed prefabricated arched roof panel, using the prefabricated mold for a prestressed prefabricated arched roof panel as claimed in claim 1, characterized in that: The following steps are involved: S1: supporting the bottom formwork (2) and laying the prestressed tendons (7); S2: tensioning the prestressed tendons (7) in S1, laying the non-prestressed tendons, and supporting the axial side formwork (3) and the radial side formwork (4); S3: installing the top mold (1) so that it is molded together with the axial side mold (3), the radial side mold (4) and the bottom mold (2) to form an arched mold cavity, and in the process of mold closing, the control component (9) controls the unified fixing component (8) to uniformly fix the prestressed tendons (7) after tensioning; S4: pouring concrete into the arched mold cavity in S3; S5: Curing the concrete poured in S4, and after the concrete reaches a preset strength, cutting the prestressed tendons (7) to release the prestressed tendons, and finally demoulding the concrete after it is completely hardened.

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