A large precast component mould

Abstract

The application discloses a large prefabricated component mold, which comprises side molds, inner molds and bottom molds, the side molds and the inner molds are respectively provided with a set, and the bottom molds are provided with at least two sets; the side molds and the inner molds can be combined with any one of the bottom molds to form a complete prefabricated component cavity; wherein when the component pouring in the prefabricated component cavity is completed, the component on one set of the bottom molds reaches the hoisting strength, the side molds and the inner molds can be disassembled and transferred to another unoccupied bottom mold for assembly and use, so that one set of the side molds and the inner molds and multiple sets of the bottom molds are alternately and circularly used.

Description

Technical Field

[0001] This application relates to the field of large component mold technology, and more specifically to a large precast component mold. Background Technology

[0002] Currently, in the field of industrialized construction, the production of large precast components (such as large bridge box girders, precast wall panels, and industrial floor slabs) has become a mainstream construction method. These components are typically large in size and heavy in weight, and need to be cast in specialized fixed molds.

[0003] The industry generally adopts a one-to-one fixed mold production model, where a complete set of molds completes the entire process of component erection, pouring, curing, and demolding at the same workstation. Due to the large volume of concrete required for large components, they need a long period of static curing after pouring to develop sufficient early strength to meet the requirements for safe lifting and transportation. This curing period often lasts for several days, far exceeding the time required for active production operations such as erection, pouring, and demolding.

[0004] Therefore, the long curing cycle of large precast components leads to long mold occupation time and low turnover rate, which in turn results in limited production line capacity, low equipment utilization and high production costs, becoming an urgent problem to be solved. Utility Model Content

[0005] The purpose of this application is to provide a large precast component mold to improve the production efficiency of large precast components.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a large precast component mold is provided, including: a side mold, an inner mold, and a bottom mold. M sets of the side mold and the inner mold are respectively provided, and N sets of the bottom mold are provided. The side mold and the inner mold can be combined with any set of the bottom mold to form a complete precast component cavity. Wherein, N is greater than M, and M and N are natural numbers greater than or equal to 1. When the component is poured in the precast component cavity, before the component located on one set of the bottom mold reaches the lifting strength, the side mold and the inner mold can be disassembled and transferred to another unoccupied bottom mold for assembly and use, thereby enabling one set of the side mold and the inner mold to be used alternately and cyclically with multiple sets of the bottom mold.

[0007] As a preferred embodiment, the bottom mold includes a bottom mold frame, a positioning component, and a mold panel. The mold panel is disposed on the bottom mold frame, the positioning component is connected to the bottom mold frame, and the positioning component is used to support and limit the positioning of the mold panel and the side mold.

[0008] As another preferred embodiment, multiple positioning components are provided and are distributed circumferentially along the contour of the mold panel on the bottom mold frame.

[0009] Further preferably, the positioning component includes a base and a positioning block; the base is fixedly disposed on the bottom mold frame, and the positioning block is movably disposed on the base so that the positioning block can move closer to or further away from the mold panel.

[0010] Preferably, the positioning block has a side abutment surface and a top abutment surface; the side abutment surface abuts against the side edge of the mold panel to provide horizontal limiting; the top abutment surface abuts against the bottom of the side mold to provide vertical support.

[0011] In a further preferred embodiment, the positioning block is also provided with an inclined side support surface, the side support surface and the top abutment surface together constitute a support structure, and the cross-section of the support structure is inverted triangular.

[0012] Preferably, the positioning block is further provided with a rolling element, and the positioning block is movably connected to the base through the rolling element.

[0013] Further preferably, the base is an I-shaped profile track.

[0014] Further preferably, the large precast component mold also includes a locking component, which is disposed between the inner mold and the side mold to achieve locking or unlocking of the inner mold and the side mold.

[0015] Further preferably, the inner mold is a shrinkable inner mold.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: By using at least two sets of bottom molds alternately, the side molds and inner molds can be successfully freed from the long maintenance wait, enabling them to carry out production operations almost continuously. This is suitable for situations where the component maintenance cycle is an integer multiple of the mold disassembly and transfer cycle, which can increase the overall turnover rate of the mold by nearly 100%, significantly reduce the production capacity loss caused by mold idleness, and maximize production efficiency without increasing equipment investment too much. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a large precast component mold.

[0018] Figure 2 This is a schematic diagram of the bottom mold structure in some embodiments.

[0019] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0020] Figure 4 This is a structural schematic diagram of the bottom mold from the main viewpoint in some embodiments.

[0021] Figure 5 for Figure 4 A magnified view of a section at point B.

[0022] Figure 6 This is a schematic diagram of the assembly of a single set of side molds, inner molds, and bottom molds in a large precast component mold.

[0023] Figure 7 for Figure 6 A magnified view of a section at point C.

[0024] Figure 8 for Figure 6 A magnified view of a section at point D.

[0025] Figure 9 This is a structural diagram of the component.

[0026] In the diagram: 1. Large precast component mold; 2. Component; 10. Side mold; 20. Inner mold; 30. Bottom mold; 31. First bottom mold; 32. Second bottom mold; 33. Bottom mold frame; 34. Positioning component; 341. Base; 342. Positioning block; 3421. Side abutment surface; 3422. Top abutment surface; 3423. Side support surface; 3424. Rolling element; 35. Mold panel; 40. Locking element; 41. Locking base; 42. Locking rod; 50. Hydraulic connecting rod; 60. Support rod. Detailed Implementation

[0027] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0029] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0030] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0031] In a preferred embodiment, see Figures 1 to 9 This application provides a large precast component mold 1, including: a side mold 10, an inner mold 20, and a bottom mold 30. The side mold 10 and the inner mold 20 are each provided with M sets, and the bottom mold 30 is provided with N sets. The side mold 10 and the inner mold 20 can be combined with any set of bottom molds 30 to form a complete precast component cavity. Wherein, N is greater than M, and M and N are natural numbers greater than or equal to 1. When the component 2 is poured in the precast component cavity, before the component 2 located on a set of bottom molds 30 reaches the lifting strength, the side mold 10 and the inner mold 20 can be disassembled and transferred to another unoccupied bottom mold 30 for assembly and use, so that a set of side molds 10 and the inner mold 20 can be used alternately and cyclically with multiple sets of bottom molds 30.

[0032] For details, please refer to Figure 1 The large precast component mold 1 in this application preferably includes two sets of bottom molds 30. For ease of explanation, in this embodiment, the two sets of bottom molds 30 are respectively named the first bottom mold 31 and the second bottom mold 32. The inner mold 20 and the side mold 10 are set as a single set. The side mold 10 and the inner mold 20 are movable core forming components and can be used alternately between the two sets of bottom molds 30. The specific cyclical use process is as follows: In the initial state, the first bottom mold 31 has completed cleaning and preparation work and is in a standby state; the second bottom mold 32 is idle or in the preparation stage; in the first pouring process, the side mold 10 and the inner mold 20 are assembled on the first bottom mold 31 to form the first precast component cavity and complete the concrete pouring to form component 2, component 2 as follows. Figure 9As shown; after the concrete on the first bottom mold 31 has initially set to the strength that allows the side mold 10 and inner mold 20 to be safely disassembled, and usually within 8-24 hours after pouring, the side mold 10 and inner mold 20 are removed from the first bottom mold 31 for mold transfer. Then, during the second pour, the disassembled side mold 10 and inner mold 20 only need to be hoisted to the second bottom mold 32, which is already in standby condition, for assembly and pouring of the second component 2. While the side mold 10 and inner mold 20 are working on the second bottom mold 32, the component 2 on the first bottom mold 31 continues to be cured until it reaches the lifting strength and is then removed. At this time, the first bottom mold 31 is cleaned and put back into standby condition to receive the side mold 10 and inner mold 20 transferred from the second bottom mold 32. When the condition of component 2 completing curing and reaching the lifting strength can completely cover the usage time of the two sets of bottom molds 30, this cycle can be repeated using only the two sets of bottom molds 30, thereby improving production efficiency. Thus, by alternating the use of the two sets of bottom molds 30, the side mold 10 and inner mold 20 are successfully freed from the long curing wait, allowing them to carry out production operations almost continuously. This system is particularly suitable for situations where the maintenance cycle of component 2 is an integer multiple of the mold disassembly and transfer cycle. It can increase the overall turnover rate of the mold by nearly 100%, significantly reduce the production capacity loss caused by mold idleness, and maximize production efficiency without increasing equipment investment too much.

[0033] Furthermore, the multi-bottom structure provided in this application is not limited to this. Its flexibility lies in the fact that the number ratio of the movable molds, namely the side molds 10 and the inner molds 20, to the bottom molds 30 can be optimized according to the production cycle requirements, the maintenance cycle of component 2, and the equipment investment budget. The core principle is to ensure that the total number of bottom molds 30 is greater than the number of combinations of side molds 10 and inner molds 20 that are in working state at the same time, thereby providing necessary buffer for mold turnover.

[0034] Therefore, in this preferred embodiment, there is a configuration scheme corresponding to two sets of inner molds 20, i.e., side molds 10, and three sets of bottom molds 30: Under this configuration, the actual mold has two sets of independently operable side molds 10 and inner molds 20 combined. A single set of inner molds 20 and side molds 10 is recorded as a set of magic cave mold groups. Therefore, the two sets of inner molds 20 and side molds 10 can be recorded as movable mold group A and movable mold group B. The three sets of bottom molds 30 can be recorded as bottom mold group A, bottom mold group B, and bottom mold group C.

[0035] The collaborative workflow is as follows: Movable mold group A assembles and pours component 2 on bottom mold group A; movable mold group B assembles and pours component 2 on bottom mold group B; at this time, bottom mold group C is in a cleaned and ready standby state; after component 2 on bottom mold group A has initially set, it is disassembled. At this time, movable mold group A does not need to wait and can immediately be transferred to bottom mold group C, which is already in a standby state, to begin a new round of assembly and pouring, and bottom mold group A enters a curing and occupancy state; subsequently, after movable mold group B completes its work on bottom mold group B and disassembles it, component 2 on the earliest used bottom mold group A has reached its lifting strength and has been removed, bottom mold group A has been cleaned and re-enters a standby state. Movable mold group B can then be transferred to bottom mold group A to continue its work.

[0036] In this way, the two sets of movable mold groups work in a cycle along the path from bottom mold group A to bottom mold group C to bottom mold group B to bottom mold group A, and the three sets of bottom molds 30 provide sufficient maintenance buffer for the two sets of movable mold groups.

[0037] Based on the same principle, those skilled in the art can derive other optimized configurations, such as: two sets of movable molds corresponding to four sets of bottom molds 30 to cope with a longer curing cycle; or three sets of movable molds corresponding to five sets of bottom molds 30 to build a more complex and efficient large precast component 2 production line, as long as the core principle of the number of bottom molds 30 being greater than the number of movable mold combinations is followed.

[0038] As a preferred embodiment, the bottom mold 30 includes a bottom mold frame 33, a positioning component 34, and a mold panel 35. The mold panel 35 is disposed on the bottom mold frame 33, and the positioning component 34 is connected to the bottom mold frame 33. The positioning component 34 is used to support and limit the positioning of the mold panel 35 and the side mold 10.

[0039] The bottom formwork frame 33 serves as the load-bearing foundation of the entire bottom formwork 30 system. It is typically constructed from structural steel, such as channel steel, I-beams, or H-beams, which are welded or bolted together to form a robust rigid platform. The frame includes longitudinally arranged main beams and transversely arranged secondary beams, which together form a grid-like support structure to ensure sufficient strength and rigidity when bearing concrete loads and to prevent deformation.

[0040] The formwork panel 35 is fixedly laid on the upper surface of the bottom formwork frame 33. The formwork panel 35 is preferably a steel plate with high surface flatness, and its thickness can be selected according to the size of the component 2 and its usage frequency. The working surface of the formwork panel 35, i.e., the upper surface in contact with the concrete, can be polished or chrome-plated to form a smooth bottom surface of the component 2 and facilitate demolding. The formwork panel 35 is fixedly connected to the bottom formwork frame 33 by welding or countersunk bolts. The joints must be flat and seamless to ensure the quality of the bottom surface of the formed component 2. The positioning component 34 enables rapid and precise docking between the side mold 10 and the bottom mold 30.

[0041] As another preferred embodiment, multiple positioning components 34 are provided and distributed circumferentially along the contour of the mold panel 35 on the bottom mold frame 33. For prefabricated components 2 with regular rectangular contours, multiple positioning components 34 can be arranged in a straight line and fixed at intervals to the outer sides of the two opposite long sides and / or two short sides of the mold panel 35. For components 2 with arc or irregular contours, such as those in this application, multiple positioning components 34 are strictly distributed around the outer periphery of the arc or irregular shape at a certain interval.

[0042] The circumferentially spaced configuration of the positioning components 34 ensures that when the side mold 10 is installed onto the bottom mold 30, all key parts of its bottom contour receive uniform and reliable support and positioning. This effectively avoids the risk of local deformation, misalignment, or even bulging of the side mold 10 due to insufficient or unevenly distributed support points. Specifically, the positioning component 34 includes a base 341 and a positioning block 342. The base 341 is fixedly mounted on the bottom mold frame 33, and the positioning block 342 is movably mounted on the base 341 so that the positioning block 342 can move closer to or further away from the mold panel 35. The base 341 can be a slide rail structure, and the positioning block 342 can be a slider structure. Preferably, the positioning block 342 has a side abutment surface 3421 and a top abutment surface 3422. The side abutment surface 3421 abuts against the side of the mold panel 35 to provide horizontal limiting. The top abutment surface 3422 abuts against the bottom of the side mold 10 to provide vertical support.

[0043] Specifically, see Figures 3 to 5 The side abutment surface 3421 on the positioning block 342 abuts tightly against the side edge of the mold panel 35, providing horizontal limitation for the mold panel 35 and preventing it from moving during the casting process. Simultaneously, the top abutment surface 3422 on the positioning block 342 serves as a support surface, abutting against the bottom edge of the side mold 10 to precisely define the installation position of the side mold 10 and bear part of the vertical load transmitted from the side mold 10, providing stable support. Therefore, the positioning component 34 simultaneously achieves the limitation of the mold panel 35 and the support and positioning of the side mold 10, together forming the foundation of a high-precision, high-stability mold system.

[0044] For further optimization, see [link to relevant documentation]. Figure 5 The positioning block 342 is also provided with an inclined side support surface 3423. The side support surface 3423 and the top abutment surface 3422 together form a support structure, and the cross-section of the support structure is inverted triangular, which enhances the stability of the positioning block 342 itself and prevents it from loosening or deforming.

[0045] Furthermore, the positioning block 342 is also provided with a rolling element 3424, and the base 341 is preferably an I-shaped profile track. The positioning block 342 is movably connected to the base 341 through the rolling element 3424. Preferably, the rolling element 3424 can be provided with a locking structure so that the positioning block 342 is fixed in different positions relative to the base 341.

[0046] Specifically, see Figure 5 The rolling element 3424 is preferably a roller structure, and one or more rollers are rotatably mounted on the bottom of the positioning block 342 via a wheel axle; the track is a specific implementation of the base 341, which can be a section of steel with a flat top surface, such as square steel or flat steel, which is fixedly installed on the bottom mold frame 33, and the rollers are supported on the top surface of the track and can roll along its length.

[0047] Further preferably, the large precast component mold 1 also includes a locking member 40, which is disposed between the inner mold 20 and the side mold 10 to lock or unlock the inner mold 20 and the side mold 10. Specifically, the locking member 40 includes a locking base 41 and a locking rod 42. The locking base 41 is distributed on the top of the inner mold 20 and the top of the side mold 10, and the locking rod 42 achieves the fastening between the inner mold 20 and the side mold 10 by connecting the two locking bases 41.

[0048] Further preferably, the inner mold 20 is a retractable inner mold 20, which is realized by hydraulic connecting rod 50 in conjunction with support rod 60. Specifically, the inner mold 20 is composed of multiple segmented inner mold templates connected to each other through the hinge shaft of support rod 60. One end of the hydraulic connecting rod 50 is connected to one inner mold template, and the other end is connected to another inner mold template. The hydraulic connecting rod 50 drives the inner mold 20 to extend in conjunction with the side mold 10 and bottom mold 30 to form a complete precast component cavity.

[0049] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A large precast component mold, characterized in that, include: Side mold, inner mold and bottom mold, wherein M sets of side mold and inner mold are provided respectively, and N sets of bottom mold are provided; The side mold and the inner mold can be combined with any set of the bottom mold to form a complete precast component cavity; Wherein, N is greater than M, and M and N are natural numbers greater than or equal to 1. When the component is poured in the cavity of the precast component, before the component on one set of the bottom mold reaches the lifting strength, the side mold and the inner mold can be disassembled and transferred to another unoccupied bottom mold for assembly and use, so that one set of the side mold and the inner mold and multiple sets of the bottom mold can be used alternately and cyclically.

2. The large precast component mold as described in claim 1, characterized in that, The bottom mold includes a bottom mold frame, a positioning component, and a mold panel. The mold panel is disposed on the bottom mold frame, the positioning component is connected to the bottom mold frame, and the positioning component is used to support and limit the position of the mold panel and the side mold.

3. The large precast component mold as described in claim 2, characterized in that, Multiple positioning components are provided and are distributed circumferentially along the contour of the mold panel on the bottom mold frame.

4. The large precast component mold as described in claim 2, characterized in that, The positioning component includes a base and a positioning block; The base is fixedly mounted on the bottom mold frame, and the positioning block is movably mounted on the base so that the positioning block can move closer to or further away from the mold panel.

5. The large precast component mold as described in claim 4, characterized in that, The positioning block has a side abutment surface and a top abutment surface; The side abutting surface abuts against the side edge of the mold panel to provide horizontal restraint; The top abutment surface abuts against the bottom of the side mold to provide vertical support.

6. The large precast component mold as described in claim 5, characterized in that, The positioning block is also provided with an inclined side support surface, which together with the top abutment surface constitutes a support structure, and the cross-section of the support structure is inverted triangular.

7. The large precast component mold as described in claim 4, characterized in that, The positioning block is also provided with a rolling element, and the positioning block is movably connected to the base through the rolling element.

8. The large precast component mold as described in claim 4, characterized in that, The base is an I-shaped profile track.

9. The large precast component mold as described in any one of claims 1-8, characterized in that, It also includes a locking component, which is disposed between the inner mold and the side mold to lock or unlock the inner mold and the side mold.

10. The large precast component mold as described in any one of claims 1-8, characterized in that, The inner mold is a retractable inner mold.

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