Forming mold system for concrete pouring component and pouring component production method

Abstract

According to the forming die system for the concrete pouring component and the pouring component production method applying the forming die system, the side die plate is driven to retract inwards around the axis below and turn over for die assembly, so that the angle between the side die plate and the side face of the concrete pouring component can be accurately adjusted and controlled; and extrusion acting force changing in a stepped mode can be applied to the two side faces of the component at different height positions in the component forming process, and therefore the concrete prefabricated component with the more strengthened structural performance is formed. The forming mold system for the concrete pouring component comprises a bearing platform arranged at the bottom, an end mold plate and a side mold plate, wherein the end mold plate and the side mold plate are arranged on the bearing platform, and the bearing platform, the end mold plate and the side mold plate can jointly define a pouring cavity with an upward opening; and the side templates can be driven by the inward folding and overturning driving device to overturn inwards around the lower parts of the side templates along the axis extending in the front-and-back direction of the side templates under the driving of the inward folding and overturning driving device.

Description

Technical Field

[0001] The present invention relates to the field of mold equipment for precast concrete casting components, and specifically to a forming mold system for concrete casting components and a casting component production method applying this system. Background Technique

[0002] Precast template components are widely used and developing rapidly in the fields of bridge construction and road paving. In bridge construction, precast and assembled bridge structures have gradually replaced the traditional on-site casting method and become a new trend due to their advantages such as accelerating the construction speed, saving resources, and reducing environmental impacts. For example, in the Shanghai S3 and S7 highway projects, components such as abutments, piers, capping beams, and box girders are precast in factories and assembled on-site, significantly improving the construction efficiency and reducing traffic management costs and environmental pollution. In addition, with technological progress, precast and assembled bridges are constantly innovating in aspects such as seismic design and connection structures. For example, steel-ultra high performance concrete low-seismic-damage assembled pier and beam combination joints have been developed. In the field of road paving, precast concrete pavements are widely used due to their characteristics such as rapid restoration, assembly, and reconstruction. They have high compressive strength, can withstand large loads, and overcome the problem of traditional thermoplastic deformation. When manufacturing these precast components for bridge construction or road paving, some special casting and forming molds or equipment are usually used to obtain better component forming quality.

[0003] A component mold for a synchronous casting precast concrete segmented capping beam disclosed in the Chinese invention patent application document with the application number CN202411865185.2 forms a combined component mold through a bottom mold, side molds, a first side mold, and a second side mold, and a baffle is arranged in the casting area of the component mold. Multiple components can be fabricated synchronously at one time using this mold, and then multiple components are assembled on-site and cast in situ to form a segmented precast concrete capping beam. This can achieve the fabrication of large cantilever precast capping beams under special working conditions such as narrow construction sites, small spacing between support columns, large overhangs on both sides, and high stress requirements. Moreover, since the precast concrete capping beam is heavy and difficult to transport, fabricating multiple components in segments reduces the transportation and hoisting difficulties and the fabrication difficulty of the precast concrete capping beam. At the same time, it can also achieve the fabrication of precast concrete capping beams with larger sizes and weights, effectively meeting the requirements for precast concrete capping beams in different projects. Another example is an assembly and disassembly device for an integral double-T beam casting mold given in the Chinese invention patent application document with the application number CN202011385735.2, which includes a top mold assembly and disassembly mechanism and a side mold assembly and disassembly mechanism. The side mold assembly and disassembly mechanism includes a first track, a second track, a first cross-moving trolley, and a second cross-moving trolley. The first track and the second track are connected to the ground through embedded parts to form an integral unit. The first track and the second track are arranged in parallel, perpendicular to the direction of the beam length. The first cross-moving trolley is installed on the first track, and the second cross-moving trolley is installed on the second track. The first cross-moving trolley connects the left outer mold and the right inner mold, and the second cross-moving trolley connects the right outer mold and the left inner mold. The device given in this solution can install and disassemble the mold according to production requirements and has the advantages of flexible disassembly and assembly and simple operation.

[0004] However, the applicant has found that in these existing mold systems that enclose to form a casting cavity, the templates on the left and right sides usually close the mold by means of horizontal translation. During the forming process, even if the member is further inwardly squeezed through this structure, the squeezing forces generated on the member at different height positions in the vertical direction are relatively close. On the one hand, it is difficult to expel the cavity inside the member upward by squeezing in this way, and on the other hand, it is also difficult to form a denser structural layer at the bottom of the member, resulting in insufficient structural strength between the concrete casting member and its bottom structure during application, and cracks or even broken damage.

[0005] In view of the above problems, the present invention provides a forming mold system for concrete casting members and a casting member production method using this system. By driving the side templates to inwardly rotate and close the mold around the lower axis, it is possible to accurately adjust and control the angle with the side of the concrete casting member, and at the same time, it is possible to apply stepped-varying squeezing forces to both sides of the member at different height positions during the member forming process, thereby forming a concrete precast member with stronger structural performance. Summary of the Invention

[0006] The present invention provides a forming mold system for concrete casting members and a production method of casting members applying this system. By driving the side formwork to retract and flip inward around the lower axis to close the mold, it can not only achieve precise adjustment and control of the angle with the side of the concrete casting member, but also apply a stepped-changing extrusion force to both side surfaces of the member at different height positions during the member forming process, thereby forming a concrete precast member with stronger structural performance.

[0007] The above technical object of the present invention is achieved through the following technical solutions: A forming mold system for concrete casting members, characterized in that it includes a supporting platform arranged at the bottom, and end formwork and side formwork arranged on the supporting platform. The supporting platform, end formwork and side formwork can jointly enclose a casting cavity with an upward opening; it also includes an inward retracting and flipping driving device, and the side formwork can be driven by the inward retracting and flipping driving device to flip inward around the axis extending in the front-rear direction below it.

[0008] As a preference for the present invention, a main structure frame extending outward is fixedly connected to the outer side of the side formwork. The inward retracting and flipping driving device includes a screw rod lifting mechanism, and the screw rod lifting mechanism includes a liftable support push rod that can perform lifting and lowering movements in the vertical direction. The top of the liftable support push rod can abut against the bottom of the main structure frame during the lifting process and push to drive the side formwork to retract and flip inward, and the liftable support push rod can also achieve self-locking positioning at any position during the upward lifting process.

[0009] As a preference for the present invention, the inward retracting and flipping driving device further includes a lifting driving unit whose output end is drivably connected to the input end of the screw rod lifting mechanism.

[0010] As a preference for the present invention, sliding guide rails extending in the left-right direction are formed on the supporting platform. The side formwork is movably arranged on the sliding guide rails and can reciprocate along the direction of the sliding guide rails; a telescopic pushing driving device for driving the side formwork to move along the sliding guide rails is also arranged on the supporting platform. One end of the telescopic pushing driving device is hinged to the supporting platform, and a quick engagement structure is formed between the other end and the side formwork.

[0011] Preferably, in the quick engagement structure, there are connecting columns fixedly connected to the outer side of the side formwork and fitting connectors fixed to the end of the telescopic pushing and driving device. A fitting notch extending upward from the bottom and corresponding to the connecting column is formed on the fitting connector. The telescopic pushing and driving device can rotate around the hinge center between it and the supporting platform to realize the engagement or separation of the fitting connector and the connecting column.

[0012] Preferably, a fixed-axis rotation locking mechanism is further formed between the side formwork and the supporting platform. The fixed-axis rotation locking mechanism includes a locking connection part fixed to the side formwork, a positioning connection part fixed to the supporting platform, and a positioning locking pin movably arranged on the supporting platform. A first positioning connection hole is formed on the locking connection part, a second positioning connection hole is formed on the positioning connection part, and the positioning locking pin can move in the front-rear direction and pass through the first positioning connection hole and the second positioning connection hole at the same time, so that the locking connection part can rotate relative to the positioning connection part around the central axis of the positioning locking pin.

[0013] Preferably, it further includes a synchronous driving rod that can reciprocate in the front-rear direction. A plurality of positioning locking pins are fixedly arranged at intervals on the synchronous driving rod. The synchronous driving rod can realize the penetration or withdrawal of each positioning locking pin through or from the corresponding first positioning connection hole and second positioning connection hole through reciprocating movement, and further synchronously realize the connection or separation of each group of corresponding locking connection parts and positioning connection parts.

[0014] A method for producing a casting member, characterized in that: the forming mold system for a concrete casting member described in claim 1 or 2 is adopted; it includes the following steps: S1: Using the supporting platform, end formwork and side formwork to close the mold to form a casting cavity; S2: Pouring concrete materials into the casting cavity; S3: The inward-turning and flipping driving device drives the side formwork to rotate inward to the first forming inclination angle, and in this state, the position of the side formwork is fixed and waits for the concrete materials to solidify. Preferably, it further includes the following steps: S4: During the solidification process of the concrete materials, continue to drive the side formwork to turn inward and flip to the second forming inclination angle, and in this state, the position of the side formwork is fixed and waits for the concrete materials to solidify.

[0015] In summary, the present invention can achieve the following multiple beneficial effects: In the forming mold system for concrete casting members provided by the solution of this invention application, compared with the existing common structures for forming the casting cavity of concrete precast members, the mold closing form of the lateral formwork is changed from the lateral translation to the inward rotation and flipping around the central axis below. For the lateral formwork structure of the common translation mold closing form, even if it continues to move inward and push and extrude the concrete material during the forming process of the concrete casting member, although it can apply greater lateral acting forces in the left and right directions to increase the internal material density of the whole member to achieve the strengthening of the structure, it cannot increase the gradient change of the structural strength of the member in the vertical direction. In the solution of this application, since the lateral formworks on both sides adopt the movement form of rotating and inward closing the mold, during the actual mold closing extrusion process, the gradient change of the lateral pressure acting force exerted by the surface of the lateral formwork on the concrete material in the vertical direction will be more significant, that is, the greater the lateral extrusion acting force actually received by the concrete material closer to the bottom of the casting cavity. At this time, when the lower concrete material is simultaneously subjected to the gravity of the concrete material above it and the greater extrusion of the lateral formwork, it will form a more dense and strengthened internal structure compared with the upper material, so that the finally obtained casting member has the characteristic that its structural strength gradually increases from top to bottom. Such structural characteristics of the concrete precast member are especially suitable for being used as the main beam members in bridges and buildings, so that its bottom has greater structural strength to prevent cracking and damage when making local small-area support connections with components such as bridge piers and columns. Since the upper part of the member is less strengthened, various structures such as notches and connection installation holes can be conveniently opened to lay and install pipelines or connect and fix other plate members. In addition, when the concrete material has not yet initially solidified and still has strong fluidity, the inward rotation and flipping extrusion process of the lateral formwork can also apply a gradually increasing lateral extrusion acting force from top to bottom to the concrete material. Therefore, it can more conveniently make the air bubble cavities remaining inside the member float up and be discharged, reducing the porosity inside the concrete, thereby improving the crack resistance of the member, making the member less likely to appear cracks during use and enhancing its durability.

[0016] In the forming die system for concrete casting components provided by this invention application, when driving the side formwork to retract and turn inward to form a casting cavity or applying a boosting force to the concrete component that is in the process of solidifying and shaping, a screw jacking mechanism is adopted as the driving device. The advantage of this driving structure is that during a relatively long period in the process of solidifying and shaping the cast concrete precast component, the end of the jacking component that is in partial contact with the side formwork can be stably maintained at the same height position for a long time and provide a strong jacking force. At the same time, compared with driving structures such as hydraulic cylinders or pneumatic ejector rods, this driving structure can greatly reduce the influence of external temperature changes on the jacking force applied to the side formwork, thereby further improving the positioning accuracy and reliability of the side formwork during the solidification and shaping of the component. In addition, such a retracting and turning inward closing die method can also effectively improve the tight wrapping performance of the concrete material around the steel bars, enhance the bond force between the steel bars and the concrete, contribute to improving the tensile performance and overall load-bearing capacity of the component, enable the steel bars and the concrete to work better together, and jointly resist external loads.

[0017] The structure of the forming die system for concrete casting components provided by this invention application also realizes the integration of the side formwork retracting and turning inward structure and the lateral pushing structure, and can more specifically customize the casting to form concrete precast components with different lateral widths and side wall surface inclination angles, so as to flexibly adapt to the requirements of more different production work scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram showing the overall structure of the forming die system for concrete casting components; Figure 2 It is a schematic diagram of the front-end structure of the forming die system for concrete casting components including the structures of each main component; Figure 3 It is a partial enlarged schematic diagram of the retracting and turning inward driving device; Figure 4 It is a partial enlarged schematic diagram of the quick engagement structure on the sliding guide rail and the telescopic pushing driving device; Figure 5 It is a partial enlarged schematic diagram of the fixed-axis rotation locking mechanism; Figure 6 It is a schematic diagram of the structural layout in which multiple groups of fixed-axis rotation locking mechanisms are connected by the same synchronous driving rod in the system; Figure 7 It is a schematic diagram of the main structural layout from the cross-sectional perspective of the forming die system for concrete casting components; Figure 8 It is a schematic diagram of the principle of the local force relationship when the side formwork rotates and retracts to squeeze the concrete material.

[0019] In the figure: 1 - Supporting platform, 101 - Sliding guide rail, 102 - Telescopic pushing drive device, 103 - Bottom formwork; 2 - End formwork; 3 - Side formwork, 301 - Main structure framework; 4 - Pouring cavity; 5 - Inward retracting and flipping drive device, 501 - Screw jacking mechanism, 502 - Liftable supporting push rod, 503 - Lifting drive unit; 6 - Quick - joining structure, 601 - Connecting column, 602 - Fitting connecting piece, 6021 - Fitting notch; 7 - Fixed - axis rotation locking mechanism, 701 - Locking connection part, 7011 - First positioning connection hole, 702 - Positioning connection part, 7021 - Second positioning connection hole, 703 - Positioning locking pin, 704 - Synchronous drive rod; 8 - Arc - shaped transition structure. Specific implementation mode

[0020] The following specific embodiments are only explanations of the present invention, and they are not limitations of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0021] This solution is achieved by the following technical means: Embodiment 1: In this embodiment, a forming die system for concrete - pouring components and a production method of pouring components applying this system are given. By driving the side formwork 3 to retract and flip inward around the lower - side axis for mold closing, while being able to achieve precise adjustment and control of the angle with the side of the concrete - pouring component, it can also apply a stepped - changing extrusion force to its two side surfaces at different height positions during the component - forming process, thereby forming a concrete pre - fabricated component with more enhanced structural performance.

[0022] Specifically, the overall structural layout of the forming die system for concrete casting components can be described with reference to the structures shown in Instructions 1 and 2. First of all, the forming die system for concrete casting components mainly includes a supporting platform 1 arranged at the bottom, and end templates 2 and side templates 3 arranged on the supporting platform 1. The supporting platform 1 extends in the front-back direction as a whole. A pair of vertically arranged end templates 2 are respectively arranged at the front and rear ends of the supporting platform 1. Correspondingly, the system at least further includes a pair of side templates 3 that are respectively arranged on both sides of the supporting platform 1 and can move. Under this structure, the inner wall surfaces of the side templates 3 on the left and right sides, the inner wall surfaces of the end templates 2 at the front and rear ends, and the top plane of the supporting platform 1 can jointly enclose a semi-closed casting cavity 4 with an upward opening. Under this die structure, after erecting a steel bar framework member inside the casting cavity 4 and pouring a concrete material with a certain fluidity inward, and waiting for the concrete material to solidify and take shape after a certain period of time, a precast concrete casting component corresponding to the shape and structure of the aforementioned casting cavity 4 can be obtained, which can be conveniently applied to various construction fields such as house and bridge construction and road paving.

[0023] In order to improve the sealing performance at the joints between the top of the supporting platform 1 and the end templates 2 and side templates 3 to prevent the concrete slurry from leaking out during the initial pouring or extrusion shaping process, a bottom template 103 component can be installed on the top of the supporting platform 1. In addition, it should also be noted here that since the distance span between the front and rear ends of the precast component formed by concrete casting is relatively large, and during the actual casting production process, the structure of the die needs to be adjusted according to the required component length dimension. Therefore, the actual forming die system for concrete casting components should include a combination of several continuously joined supporting platforms 1 and side templates 3. In order to simply and clearly illustrate the implementation structure form, the main difference points compared with the prior art, and the technical effects of this solution, this embodiment mainly intercepts the front part section of the whole system containing all the main structural components to explain, and uses the attached Figure 2 to display its structure.

[0024] In the solution of this embodiment, the forming die system for concrete casting components given has the biggest difference compared with the traditional casting die system in that an inward-folding and flipping driving device 5 is provided, so that the side templates 3 on both sides can be driven by the inward-folding and flipping driving device 5 to flip inward around the axis extending in the front-back direction below them. In order to more clearly illustrate this structural form and its technical effects, the inventor first only elaborates on the main structure for realizing the inward-folding and flipping. Refer to the attached Figure 7As shown, a fixed-axis rotation locking mechanism 7 is respectively arranged between the bottoms of the side templates 3 on both sides and the base platform, so that the side templates 3 can rotate relative to an axis extending in the front-rear direction determined by this mechanism and turn inward. Refer to the appended drawings of the specification Figure 2 and 7 As shown in the structure, a main structure frame 301 extending outward can be fixedly connected to the outer side of the side template 3, and the inward-turning drive device 5 is installed at the position between the support platform 1 and the main structure frame 301. The inward-turning drive device 5 includes a screw rod jacking mechanism 501. The screw rod jacking mechanism 501 includes a liftable support push rod 502 that can move up and down in the vertical direction. The top of the liftable support push rod 502 can abut against the bottom of the main structure frame 301 during the lifting process and push to drive the side template 3 to turn inward. Since a worm and worm gear transmission mechanism is adopted inside the screw rod jacking mechanism 501, not only can a powerful jacking force be provided during the upward jacking process, but the liftable support push rod 502 can also achieve self-locking positioning at any position during the upward lifting process, avoiding the position change of the side template 3 caused by the expansion of the concrete component in the pouring cavity 4 due to temperature influence during the setting process. Of course, in order to drive the screw rod jacking mechanism 501 to operate, a motor device can also be installed on the support platform 1 as the lifting drive unit 503. Connect the output shaft of the motor to the input shaft of the screw rod jacking mechanism 501 through a coupling, and the lifting height of the liftable support push rod 502 can be controlled by controlling the forward and reverse rotation of the motor, thereby realizing the adjustment and control of the inward-turning angle of the side templates 3 on both sides of the system, and also realizing the control of the extrusion force on the concrete component in the pouring cavity 4 in the lateral direction, the inclination angles of the side walls of the precast component, and the internal structural performance.

[0025] Here, the inventor also considered that when the side template 3 turns inward relative to the bottom template 103, if the structure at the junction of the two components is not adjusted adaptively, it is easy to cause excessive gap in the initial state, resulting in the leakage of concrete slurry during the initial pouring, or the phenomenon that the side template 3 rubs against the bottom template 103 excessively or even abuts and jams during the inward-turning process. Therefore, in the solution of this embodiment, with reference to the appended drawings of the specification Figure 8Taking the provided enlarged partial structure schematic diagram as an example, the bottom surfaces of the side templates 3 on the left and right sides are set as concave arc-shaped surfaces with the inward rotation center as the center of the circle. At the same time, the upper surfaces of both sides of the bottom template 103 that are in contact and abutted with the bottoms of the side templates 3 are also set as corresponding convex arc-shaped surfaces, so as to form an arc-shaped transition structure 8 between the side templates 3 and the bottom template 103. At this time, when the side templates 3 rotate inward around the rotation center below them, their bottoms can always remain in contact with the surface of the bottom template 103 without getting stuck, which not only meets the rotation adjustment requirements but also effectively prevents the internal concrete material from leaking out through the gap between the two components.

[0026] Furthermore, a production method for casting components is provided here, which applies the above-mentioned forming die system for concrete casting components to realize the casting of concrete precast components. First, the supporting platform 1, the end templates 2, and the side templates 3 are combined to form a casting cavity 4. Subsequently, concrete material is poured into the casting cavity 4. Finally, the inward rotation driving device 5 drives the side templates 3 to rotate inward to the first forming inclination angle, and in this state, the positions of the side templates 3 are fixed and waiting for the concrete material to solidify. During the application of this production method for casting components, it should be noted that the first forming inclination angle here is the inclination angle state of the outer side wall surface of the finally required precast component. Therefore, when initially combining the templates to form the casting cavity 4, the side templates 3 are in a state that is more inclined outward relative to this first forming inclination angle. After the templates are combined to form the casting cavity 4, concrete material is poured into the interior of the casting cavity 4. At this time, according to the different state characteristics of the actually poured concrete material, different shaping operation methods can be selected. For example, if the fluidity of the concrete material itself is low and it has tended to be in a preliminary solidification state during pouring, the inward rotation driving device 5 can immediately be used to drive the side templates 3 to rotate inward to the first forming inclination angle, and in this state, the positions of the side templates 3 are fixed and waiting for the concrete material to solidify. If the fluidity of the concrete material is still strong and tends to be in a fluid state during pouring, a certain period of time can be waited temporarily. After the concrete material is preliminarily solidified and its fluidity is reduced, the inward rotation driving device 5 is then used to drive the side templates 3 to rotate inward and flip, so as to realize the extrusion strengthening and final shaping and limiting of the casting components.

[0027] For such a forming method, the strengthening effect generated inside the component can be referred to in the attached Figure 8The following structure will be described. When the side formwork 3 rotates inward around the rotation center hinged below it, the side formwork 3 actually rotates inward as a whole driven by the inward rotation driving device 5. Opposing this driving torque is the torque formed by the resistance generated by the concrete material in the pouring cavity 4 on the entire contact surface, and the source of this resistance lies in the internal structural strength of the concrete material itself. Obviously, it can be found that in the initial state, the concrete material is relatively evenly distributed, and the internal structural resistances that can be generated at each position are similar. As the side formwork 3 rotates, the closer the concrete material is to the bottom, the greater the resistance to upward movement and escape, resulting in a greater degree of internal densification at this position compared to the upper layer when it is squeezed. On the other hand, since the formworks on both sides rotate inward in opposite directions, if the concrete materials at different heights are divided into several structural layers, then in order to avoid the distribution state between each structural layer being damaged, each structural layer should generate the same or similar resistance torques to prevent the inward rotation and flipping of the side formwork 3. At this time, it can be found that when the resistance torques required by different structural layers are the same, the closer the structural layer is to the rotation center below, the greater the resistance force it needs to generate, that is, the higher the degree of extrusion it receives internally. This leads to the fact that in the component formed by this inward rotation and flipping and clamping extrusion method, the closer the part is to the bottom, the higher the structural densification, which also makes the structural strength of this part greater, and further forms different densification and structural strength gradient changes inside the concrete pouring component to meet the special requirements in the actual working scenario.

[0028] Certainly, further, on the basis of the above-mentioned concrete pouring component production method, after the side formwork 3 rotates inward and flips to the first forming inclination angle and waits for the concrete material to solidify for a period of time, the side formwork 3 can be further driven to rotate inward and flip to the second forming inclination angle, and the position of the side formwork 3 is kept fixed in this state and waits for the concrete material to solidify. Such a component forming production method can realize continuous multiple strengthening treatments of "extrusion - shaping - extrusion" for the concrete pouring component, enabling the concrete material to be continuously extruded and shrunk in a low fluidity state, thereby obtaining a denser structural layer inside the component and further improving the internal structural strength of the component. Of course, according to the actual working requirements, the above process can also be continuously repeated multiple times to produce concrete precast components with higher strength.

[0029] Embodiment 2: In this embodiment, a forming mold system for a concrete pouring component is given, which further refines and adds related optimized structures on the basis of the brief main structure scheme of Embodiment 1.

[0030] In the solution of this embodiment, it includes all the structural parts in the solution of Embodiment 1. The difference compared with Embodiment 1 is that on the basis of the original adduction and flipping drive device 5 and the fixed-axis rotation locking mechanism 7 that can realize the inward flipping of the side formwork 3, the side formwork 3 is optimized and improved to a structure that can also perform translational movement in the left-right direction, so as to further expand the adjustable range of the overall lateral width of the pouring cavity 4, thereby allowing the molding die system to perform pouring and molding on more forms of structural members.

[0031] Specifically, referring to the attached drawings of the specification Figure 2 As shown, in the molding die system for concrete pouring components given in the solution of this embodiment, sliding guide rails 101 extending in the left and right directions are formed on the supporting platform 1. The side formwork 3 is movably arranged on the sliding guide rails 101 and can reciprocate along the direction of the sliding guide rails 101. For example, taking the structure shown in FIG. 4 of this application as an example, a supporting block can be snap-fitted on the sliding guide rail 101, and a clamping groove recessed from top to bottom is formed on the supporting block. Then, the lower part of the main structure frame 301 fixedly connected to the outside of the side formwork 3 can be embedded into the clamping groove, so as to realize the translational reciprocating movement of the side supporting block and the side formwork 3 it supports as a whole along the sliding guide rail 101, and realize the adjustment and control of the width of the pouring cavity 4 while changing the distance between the inner wall surfaces of the two side formworks 3. Of course, in order to realize the inward pushing or outward pulling of the side formwork 3 in the horizontal direction, a telescopic pushing drive device 102 for driving the side formwork 3 to move along the sliding guide rail 101 needs to be provided on the supporting platform 1. In order to enhance the clear display of the structure of this die system, the inventor chooses to further display and explain the structure of the telescopic pushing drive device 102 at the end of this embodiment.

[0032] As the most important optimization and upgrade technical point of the solution of this embodiment compared with the solution of Embodiment 1, it is that after the two side formworks 3 move along the sliding guide rail 101, they can still realize the adduction and flipping movement around the central axis fixed below.

[0033] To achieve the above effects, in this embodiment, a fixed-axis rotation locking mechanism 7 is also formed between the side formwork 3 and the supporting platform 1. However, different from the structure in which the central axis in Embodiment 1 is completely locked and fixed, the fixed-axis rotation locking mechanism 7 here includes a locking connection part 701 fixed on the side formwork 3, a positioning connection part 702 fixed on the supporting platform 1, and a positioning locking pin 703 movably arranged on the supporting platform 1. At the same time, a first positioning connection hole 7011 is formed on the locking connection part 701, and a second positioning connection hole 7021 is formed on the positioning connection part 702. The positioning locking pin 703 can move in the front-back direction and pass through the first positioning connection hole 7011 and the second positioning connection hole 7021 at the same time. At this time, through the connecting effect of the positioning lock, the side formwork 3 fixed as a whole with the locking connection part 701 is movably locked to the supporting platform 1 fixed as a whole with the positioning connection part 702 on the same central axis, and the side formwork 3 is allowed to rotate relative to the supporting platform 1 around this central axis.

[0034] Of course, the locking and fixing action here needs to be carried out after first pushing the two side formworks 3 along the sliding guide rail 101 to the set position. That is, when the side formwork 3 needs to move along the sliding guide rail 101, the positioning locking effect does not pass through the first positioning connection hole 7011 and the second positioning connection hole 7021. When the side formwork 3 is retracted and translated to the preset position state and the first positioning connection hole 7011 and the second positioning connection hole 7021 are in a facing state, the movable connection between the two components can be realized by moving the positioning locking pin 703 in the front-back direction.

[0035] In addition, the inventor also considered that the span of a single side formwork 3 in the front-back direction may still be relatively large. Therefore, it is necessary to cooperate with a plurality of positioning locking pins 703 located on the same axis and multiple corresponding locking connection parts 701 and positioning connection parts 702 to achieve stable locking and retraction rotation control. On the other hand, as described in Embodiment 1 above, since during actual pouring, the concrete pouring member forming mold system will adopt a multi-section splicing structure to realize the pouring and shaping of concrete members with a relatively large span at the front and rear ends, it is necessary to arrange multiple side formworks 3 in sequence and continuously. And when locking and positioning these side formworks 3, it is also necessary to lock the side formworks 3 on the same side together on multiple pins located on the same axis.

[0036] Based on the inventor's consideration of the above actual application scenarios, referring to the attached drawings of the specification Figure 5 and 6, in the solution of this embodiment, a synchronous drive rod 704 capable of reciprocating in the front-rear direction of the whole mold is further provided in the fixed-axis rotation locking mechanism 7. A plurality of positioning locking pins 703 are fixedly arranged at intervals on the synchronous drive rod 704, and the central axes of these cylindrical or cylindrical positioning locking pins 703 are collinear. When the whole synchronous drive rod 704 reciprocates in the front-rear direction, each of the positioning locking pins 703 can simultaneously pass through or disengage from the respective first positioning connection holes 7011 and second positioning connection holes 7021 corresponding to them, thereby synchronously realizing the connection or separation of each group of corresponding locking connection parts 701 and positioning connection parts 702. Under this structure, it is possible to control multiple side templates 3 on the same side to synchronously perform an inward folding rotation movement around a common rotation center axis, and achieve precise control of the force and structure on the overall side wall surface of the component in the pouring cavity 4.

[0037] For the aforementioned telescopic push drive device 102, reference can be made to the Figure 4 partial structure enlarged schematic diagram given in the specification. The telescopic push drive device 102 here can be selected as a hydraulic jacking cylinder, one end of which is hinged to the supporting platform 1, and a quick engagement structure 6 is formed between the other end and the side template 3. The quick engagement structure 6 here includes a connection column 601 fixedly connected to the outside of the side template 3 and a fitting connector 602 fixed to the end of the telescopic push drive device 102. A fitting notch 6021 extending upward from the bottom and corresponding to the connection column 601 is provided on the fitting connector 602. At this time, the front end of the telescopic push drive device 102 can be driven by an external drive device to quickly engage or disengage the fitting connector 602 and the connection column 601 by rotating around the hinge center between it and the supporting platform 1, and thus can more efficiently and quickly realize the pushing and pulling drive action for the side template 3 to move along the sliding guide rail 101.

[0038] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A forming die system for concrete casting members, characterized in that: It includes a supporting platform (1) arranged at the bottom, an end formwork (2) and a side formwork (3) arranged on the supporting platform (1). The supporting platform (1), the end formwork (2) and the side formwork (3) can jointly enclose a casting cavity (4) with an upward opening. It also includes an inward folding and flipping driving device (5). The side formwork (3) can be driven by the inward folding and flipping driving device (5) to flip inward around an axis extending in the front-rear direction below it.

2. The forming die system for concrete casting members according to claim 1, characterized in that: A main structure frame (301) extending outward is fixedly connected to the outer side of the side formwork (3). The inward folding and flipping driving device (5) includes a screw rod jacking mechanism (501). The screw rod jacking mechanism (501) includes a liftable support push rod (502) capable of moving up and down in the vertical direction. The top of the liftable support push rod (502) can abut against the bottom of the main structure frame (301) during the lifting process and push to drive the side formwork (3) to fold inward and flip, and the liftable support push rod (502) can also achieve self-locking positioning at any position during the upward lifting process.

3. The forming die system for concrete casting members according to claim 2, characterized in that: The inward folding and flipping driving device (5) further includes a lifting driving unit (503) whose output end is drivably connected to the input end of the screw rod jacking mechanism (501).

4. The forming mold system for concrete casting members according to any one of claims 1-3, characterized in that: Sliding guide rails (101) extending in the left-right direction are formed on the supporting platform (1). The side formwork (3) is movably arranged on the sliding guide rails (101) and can reciprocate along the direction of the sliding guide rails (101). A telescopic pushing driving device (102) for driving the side formwork (3) to move along the sliding guide rails (101) is also arranged on the supporting platform (1). One end of the telescopic pushing driving device (102) is hinged to the supporting platform (1), and a quick engagement structure (6) is formed between the other end and the side formwork (3).

5. The forming mold system for concrete casting members according to claim 4, characterized in that: The quick engagement structure (6) includes a connecting column (601) fixedly connected to the outer side of the side formwork (3) and a fitting connector (602) fixed to the end of the telescopic pushing driving device (102). A fitting notch (6021) extending upward from the bottom and corresponding to the connecting column (601) is formed on the fitting connector (602). The telescopic pushing driving device (102) can achieve the engagement or separation of the fitting connector (602) and the connecting column (601) by rotating around the hinge center between it and the supporting platform (1).

6. The forming die system for concrete casting members according to claim 4, characterized in that: A fixed-axis rotation locking mechanism (7) is further formed between the side formwork (3) and the supporting platform (1). The fixed-axis rotation locking mechanism (7) includes a locking connection part (701) fixed on the side formwork (3), a positioning connection part (702) fixed on the supporting platform (1), and a positioning locking pin (703) movably arranged on the supporting platform (1). A first positioning connection hole (7011) is formed on the locking connection part (701), and a second positioning connection hole (7021) is formed on the positioning connection part (702). The positioning locking pin (703) can move in the front-back direction and simultaneously pass through the first positioning connection hole (7011) and the second positioning connection hole (7021), so that the locking connection part (701) can rotate relative to the positioning connection part (702) around the central axis of the positioning locking pin (703).

7. The forming die system for concrete casting members according to claim 6, characterized in that: It further includes a synchronous driving rod (704) that can reciprocate in the front-back direction. A plurality of positioning locking pins (703) are fixedly arranged at intervals on the synchronous driving rod (704). The synchronous driving rod (704) can achieve the penetration or withdrawal of each positioning locking pin (703) through or from the corresponding first positioning connection hole (7011) and second positioning connection hole (7021) through reciprocating movement, thereby synchronously achieving the connection or separation of each group of corresponding locking connection parts (701) and positioning connection parts (702).

8. A production method for a cast component, characterized in that: The molding die system for concrete casting members described in claim 1 or 2 is adopted; It includes the following steps: S1: Using the supporting platform (1), end formwork (2) and side formwork (3) to close the mold to form a pouring cavity (4); S2: Pouring concrete materials into the pouring cavity (4); S3: The inward-turning driving device (5) drives the side formwork (3) to rotate inward to a first molding inclination angle, and in this state, the position of the side formwork (3) is kept fixed and waiting for the concrete materials to solidify.

9. The production method of the casting member according to claim 8, characterized in that: It further includes the following steps: S4: During the solidification process of the concrete materials, continue to drive the side formwork (3) to turn inward and flip to a second molding inclination angle, and in this state, keep the position of the side formwork (3) fixed and waiting for the concrete materials to solidify.

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