193results about "Ceramic shaping mandrels" patented technology

The invention relates to a top-cover-free rectangular concrete body inner mold demolding device and demolding method.According to the top-cover-free rectangular concrete body inner mold demolding device, through innovative structural design, a rectangular inner mold is divided into two angle molds and two L-shaped molds, and a track extending by a specific angle (45 degrees in the horizontal direction) and an intermittent driving device are matched. During demolding, the intermittent driving device can accurately drive the two angle molds to synchronously slide inwards firstly, the contact area and friction force between the inner mold and a concrete body are effectively reduced, then the two L-shaped molds are driven to synchronously slide inwards, and the whole demolding process is completed. Compared with a traditional demolding mode, the demolding efficiency is greatly improved, and the demolding time is shortened; by the adoption of the gradual demolding mode, direct beating and violent disassembly of the mold and the concrete body are avoided, the risk that the inner mold and the concrete body are damaged is effectively reduced, the surface integrity and the internal structural strength of the concrete body are guaranteed, the service life of the inner mold is prolonged, and the production cost is reduced.

The invention discloses a UHPC sheath pouring mold for a pile foundation and a pouring method of the UHPC sheath pouring mold, and relates to the technical field of building construction equipment. A protection assembly for improving the structural strength of the pile foundation is arranged on the outer side of the pile foundation; the outer side of the protection assembly is wrapped with a pouring mechanism for conducting pouring preparation on the protection assembly, the pouring mechanism comprises an inner mold, and two outer molds are symmetrically installed on the outer side of the inner mold; the protection assembly comprises a supporting framework placed between an interlayer of the outer mold and an interlayer of the inner mold, and the outer side of the supporting framework is wrapped with an inner steel mesh and an outer steel mesh. The pouring mechanism is matched with pouring of concrete grout to prepare the protection assembly, then the protection assembly is carried and installed on the outer side of the pile foundation, and the structural strength of the pile foundation is improved. The UHPC sheath pouring mold for the pile foundation and the pouring method of the UHPC sheath pouring mold have the effects of high performance, high structural strength and high protection capacity.

The batch box culvert pouring mold comprises an outer mold unit and an inner mold unit, the outer mold unit comprises a base, a bottom plate, two sets of side plates, a top plate and a rear plate, the rear plate and the bottom plate are integrally formed, the side plates are connected with the top plate and the bottom plate through telescopic rods, and the surfaces of the side plates are provided with third protrusions and U-shaped plates with fourth protrusions; the inner mold unit comprises an inner forming mold, a moving rod and a linkage plate, the linkage plate is provided with a first protrusion and a second protrusion, and a sleeving frame with a convex attaching strip is detachably fixed in an annular groove of the inner forming mold through a screw. After concrete is poured and solidified through the top plate injection groove, the moving rod drives the internal forming mold to drive the linkage plate to act, approaching positioning and separation of the side plates are achieved through linkage of the protrusions, the box culvert is moved out along with the inner mold by means of friction force of the attaching strips, and the box culvert and the inner mold can be separated by disassembling the screw. The demolding process is simplified, automatic operation is achieved, the labor intensity is reduced, the continuity, stability and forming quality of batch production are guaranteed, and the mold is suitable for a box culvert batch production scene.

The application provides a core mold and a prefabricated room integrated pouring mold, and relates to the prefabricated room forming technical field.The core mold comprises a core mold body and a linkage unit.The core mold body comprises an inner bottom mold.The edge of the inner bottom mold comprises a corner part and a side edge part.The corner part is detachably connected with a corner mold, and the side edge part is detachably connected with an inner side mold.The linkage unit is connected with the corner mold and the inner side mold, and is configured to drive multiple corner molds to gather or disperse, and drive multiple inner side molds to gather or disperse.The core mold can improve the processing efficiency of the pouring mold.

The utility model discloses a prefabricating device of a pi-shaped beam plate, which comprises an outer side mold and an inner tube mold, a concrete pouring cavity is arranged between the inner tube mold and the outer side mold, and the inner tube mold is connected with the outer side mold through a support. The inner tube mold is provided with a bottom mold and at least two box-type bodies, each box-type body is composed of a top inner mold and four side inner molds, corner molds are arranged between the adjacent side inner molds and between the side inner molds and the top inner mold, the side inner molds are hinged to the bottom mold, the bottom mold is firmly fixed to the ground through foundation bolts, and the adjacent top inner molds are connected through connecting plates. The top inner mold, the side inner mold and the box-type body are arranged to form a closed box-type structure, the vertical linkage rod and the horizontal linkage rod are arranged to be matched with the hydraulic jack to form a hydraulic connecting rod type detachable split inner mold, and the situation that a mold plate is deformed due to high temperature and demolding adsorption force is generated is avoided.

The invention relates to the technical field of flue forming machines, and particularly discloses an automatic composite lining laying and positioning device for a flue forming machine. Comprising a fixed side plate, a hydraulic push rod is fixedly connected to one side of the fixed side plate, a driving shaft of the hydraulic push rod penetrates through the fixed side plate and is fixedly connected with a built-in connecting plate, a frame-shaped sliding plate is fixedly connected to the outer side of the built-in connecting plate, a side opening frame groove is formed in one side of the frame-shaped sliding plate, and a bottom supporting long plate penetrates through and is slidably connected to one side of the frame-shaped sliding plate; according to the automatic laying and positioning device for the composite lining for the flue forming machine, when the built-in composite lining moves in place, the frame-shaped sliding plate is driven by the hydraulic push rod to move back till the built-in composite lining is about to be separated from the side-opening frame groove, and the built-in composite lining is placed in the frame-shaped sliding plate. The bottom die sliding plate is driven by the transverse electric sliding rail to drive the built-in composite lining to move to a certain position, and then the positioning effect can be achieved.

The application relates to a forming method of a mold and a tower drum segment, which comprises the following steps: a segment mold unit is provided with a pouring cavity and an opening communicating with the pouring cavity, the pouring cavity is used for pouring slurry to form a tower drum segment; a positioning assembly is arranged on the segment mold unit, the positioning assembly comprises a protruding piece and a sealing piece arranged around the protruding piece, the protruding piece is arranged in the pouring cavity through the opening, the protruding piece is provided with a plug-in interface communicating with the pouring cavity, the sealing piece seals the gap between the protruding piece and the wall surface surrounding the opening, and the sealing piece is detachably connected with the segment mold unit; a plug-in component is arranged in the pouring cavity through the plug-in interface, the plug-in component has two opposite end portions, one end portion is overlapped on the protruding piece, and the other end portion is arranged through the segment mold unit to form a connecting hole on the tower drum segment. The mold provided by the embodiment of the application is easy to form and convenient to demold.

This invention relates to the field of parking bollard technology, and proposes a spherical hollow parking bollard, comprising a base and a sphere connected in sequence, both of which are hollow structures. The inner wall of the base has at least two slots, and it also includes a bottom plate with locking blocks for engaging with the slots. After the locking blocks engage with the slots, the bottom plate closes the base. This technical solution solves the problem of the excessive weight and inconvenience of transporting solid parking bollards in the prior art.

The utility model discloses a vertical pouring prefabricated box culvert shaping template which comprises an outer forming die and an inner forming die, a pouring cavity is formed between the outer forming die and the inner forming die, and the outer forming die is formed by splicing two first supporting side templates and two second supporting side templates. The adjacent first supporting side formwork and second supporting side formwork are detachably connected through a sealing connecting assembly, a lower sealing assembly is arranged at the bottom of the outer forming die, a synchronous inner supporting assembly is arranged in the inner forming die, and a pouring sealing assembly is arranged at the top of the outer forming die. The box culvert pouring sealing device has the advantages that the structure is simple, uniform pouring work of concrete is facilitated, demolding work of a formed box culvert is facilitated, the overall sealing performance is good during pouring, stable supporting can be provided for an inner forming mold, and the problem of deformation of the inner forming mold is avoided.

The utility model relates to the technical field of precast beam inner mold dismantling tools, in particular to a precast beam inner mold dismantling dragging platform. The platform comprises a platform body, and the platform body comprises a sliding plate arranged in the length direction of the precast beam inner mold and a supporting frame used for pushing the sliding plate to the position below the inner mold. A winch used for pulling the inner mold is arranged at the end, away from the inner mold, of the sliding plate. And damage to the precast beam caused by the fact that the inner mold extrudes the side wall of the opening of the precast beam when the winch pulls out of the inner mold can be prevented.

The utility model discloses a gypsum core mold supporting tool, and relates to the technical field of composite material production. The device is characterized by comprising a first aluminum pipe, the upper end of the first aluminum pipe is connected with a lifting unit, and the upper end of the lifting unit is connected with a second aluminum pipe; an arc-shaped supporting plate is mounted at the upper end of the second aluminum pipe; a plurality of supporting units are installed in the circumferential direction of the first aluminum pipe, a third aluminum pipe is movably inserted into a lower end opening of the first aluminum pipe, and the third aluminum pipe can control the opening and closing angles of the supporting units when moving in the first aluminum pipe in the vertical direction. A limiting unit used for limiting the position of the third aluminum pipe is arranged on one side of the first aluminum pipe. The supporting tool can replace manual work to support the top round pipe in the process of disassembling the steel mold in the gypsum core mold, the operation efficiency can be effectively improved, and the safety risk in the operation process can be reduced.

The invention discloses an inner formwork transporting and supporting system for a prefabricated box girder and a using method. The system comprises a support, a horizontal driving assembly, a bearing assembly and a controller. The horizontal driving assembly is arranged on the support, the bearing assembly comprises a supporting base, a driving piece, a first adjustable supporting piece, a second adjustable supporting piece and a third adjustable supporting piece, and the supporting base is installed on the support in a sliding mode; the driving piece is fixedly mounted on the supporting seat and is in power connection with the horizontal driving assembly; a plurality of auxiliary rolling assemblies are arranged on the two sides of the supporting base, each auxiliary rolling assembly comprises a linear driving component, a swing piece and a walking wheel, and the controller is used for controlling the horizontal driving assembly, the linear driving components, the first adjustable supporting piece, the second adjustable supporting piece and the third adjustable supporting piece to act; the method comprises the steps of operation preparation, inner mold supporting and mold removal operation. The system is high in disassembly and assembly efficiency, manual operation in a narrow space is avoided, and the construction efficiency is improved.

Systems and methods are disclosed for producing a hollow composite part, such as a CMC airfoil, using a segmented mandrel formed of individual mandrel segments. The individual mandrel segments may be dimensioned to permit extraction from highly twisted and / or curved parts. There is provided a system for producing a curved and / or twisted hollow composite part (100), comprising a first segment (20) of cavity mandrel (200) configured for a first portion of the composite part (100), the first segment (20) having a first opening (210) extending therethrough; and a second segment (20) of cavity mandrel (200) configured for a second portion of the composite part (100), the second segment having a second opening (210) extending therethrough that is substantially aligned with the first opening (210), wherein the second segment (20) is disposed adjacent to the first segment (20).

The present invention provides a formwork device and an inner formwork that enable the easy manufacture of precast members having a space formed inside that extends in a predetermined axial direction. [Solution] An inner formwork (3) for forming a space extending in a predetermined axial direction (A) in a precast concrete member (30), comprising: a formwork panel (11) having an outer surface and composed of a plurality of panels (16, 17) extending along the axial direction; and a support mechanism (12) for supporting the formwork panel, wherein the formwork panel consists of a plurality of first panels (16) and a plurality of second panels (17) arranged alternately in the circumferential direction; and the support mechanism includes a first support mechanism (18) that supports the plurality of first panels so as to be movable in the radial direction; and a second support mechanism (19) that supports the plurality of second panels so as to be movable in the radial direction.

The utility model relates to a lower die device of a wet forming machine. Comprising a mold outer frame assembly, a mold inner core assembly is installed on the mold outer frame assembly, a forming cavity is formed in the mold inner core assembly, and an inner cavity bottom plate is slidably connected into the forming cavity; the device further comprises a pressure head assembly. The mold inner core assembly comprises a left long edge core structure and a right long edge core structure, left and right side plates are installed on the inner side faces of the left and right long edge core structures respectively, and a first adjusting unit and a second adjusting unit are arranged between the left and right side plates. The adjusting unit I is connected with a rear upper sealing plate and a rear lower sealing plate; the adjusting unit II is connected with a front upper sealing plate and a front lower sealing plate; the pressing head assembly comprises a pressing head body structure, a pressing drainage unit is connected to the bottom of the pressing head body structure, a water outlet channel is formed in the middle of the pressing drainage unit, a plurality of drainage water suction openings are formed in the bottom face, and a plurality of drainage connectors are installed on the top face. According to the utility model, multidirectional drainage can be carried out in the extrusion forming process, the forming cavity of the mold can be adjusted according to the specification and the size of the road edge stone, and the device has the function of multiple production by one type, and is high in applicability and flexibility.

The utility model discloses an internal mold shared by multiple sections of a large box girder of a high-speed rail, which is characterized in that support columns are fixedly mounted at the bottom in the box girder internal mold side by side, a sliding seat is detachably mounted above the support columns, a lifting pulley is mounted at the bottom of the sliding seat, a lifting seat is mounted at the upper part of the sliding seat, and first pushing oil cylinders are movably hinged to two ends of the top of a top mold; piston shafts of the first pushing oil cylinders are movably hinged to the side dies at the corresponding positions, second pushing oil cylinders are movably hinged to the lower portions of the side dies, and piston shafts of the second pushing oil cylinders are movably hinged to the corner dies at the corresponding positions. According to the box girder inner mold installation device, installation work of a box girder inner mold can be rapidly completed, the third pushing oil cylinder, the second pushing oil cylinder and the first pushing oil cylinder are started, the top mold descends, the side mold and the corner mold are overturned to be separated from the inner wall of a box girder, then the lifting type idler wheels make contact with the bottom plate, and at the moment, the sliding bases can rise to be separated from the supporting columns; and the sliding seat and the box girder inner mold can be integrally pulled out from the interior of the box girder, the dismounting efficiency is improved, and the labor intensity of workers is reduced.

The utility model provides a preformed hole construction device for a concrete prefabricated part. The preformed hole construction device comprises a plurality of preformed hole die units, a connecting steel plate assembly and at least two hole pulling pins. The preformed hole mold unit comprises two pipe fittings and two plates connecting the two pipe fittings, and the two ends of each plate are connected to the tangent positions of the two pipe fittings correspondingly to form a long circular hole mold. The connecting steel plate assembly comprises a first steel plate, a plurality of third steel plates and a second steel plate which are used for connecting different preformed hole die units; the two first steel plates are respectively used for connecting the pipe fittings on the same side, so that the preformed hole die units are parallel to each other; the third steel plates stretch across the two first steel plates at equal intervals and are fixed to the first steel plates. The second steel plate is parallel to the first steel plate and fixed with the third steel plate; the two ends of the second steel plate are provided with plug pin holes with internal threads, and the hole pulling pins are in threaded fit with the plug pin holes. The device has the advantages of being easy to manufacture, low in cost and good in economical efficiency.

The utility model belongs to the technical field of wine bottle opening female dies, and particularly relates to a convenient combined ceramic wine bottle opening female die assembly made of composite materials. According to the technical scheme, the convenient combined ceramic wine bottle opening female mold assembly made of the composite materials comprises a female mold base, a female mold outer sleeve and a main mold inner core, a female mold inner cavity is formed in the female mold outer sleeve, a demolding opening is formed in the female mold inner cavity, and the main mold inner core is connected to the female mold base and extends into the female mold outer sleeve; the female die outer sleeve is aligned and matched with the female die base, and a die cavity used for pouring a bottle opening is defined by the female die base, the female die outer sleeve and the main die inner core; a mechanical arm demolding base grabbing position is arranged on the outer wall of the female mold base, an automatic conveying line positioning clamping groove is formed in the end, away from the female mold outer sleeve, of the female mold base, and a mechanical arm demolding outer sleeve grabbing position is arranged on the outer wall of the female mold outer sleeve. The utility model provides a convenient combined type ceramic wine bottle opening female die assembly made of composite materials.

The invention relates to the technical field of bridge construction, and discloses a forming method of a preformed hole of a mass concrete prefabricated abutment, which comprises the following steps of: binding vertical and circumferential steel bars around the position of the preformed hole; an outer fixing tray is horizontally placed at the bottom of the position where the preformed hole is preset; assembling a preformed hole template in advance, fixing the preformed hole template on the inner adjusting tray to form a pouring hole template, hoisting the pouring hole template to the top of the outer fixing tray, and adjusting the position of the preformed hole template from three dimensions; a steel bar connecting sleeve is inserted into the position of each steel bar penetrating hole, and axis steel bar penetrating and binding are conducted along the steel bar connecting sleeves; pouring concrete; the reinforcing steel bars in each reinforcing steel bar connecting sleeve are removed, and the reinforcing steel bar connecting sleeves are left in the concrete to form reinforcing steel bar connecting positions; and the preformed hole template, the outer fixing tray and the inner adjusting tray are removed and taken out, and a preformed hole is formed. The preformed hole forming efficiency is high, and the precision is high.

The utility model provides a multi-cabin combined assembly type prefabricated cable working well mould, which relates to the field of cable inspection wells and comprises an I-shaped steel bottom plate, an outer mould bottom plate is arranged on the upper surface of the I-shaped steel bottom plate, a bottom steel bar frame is arranged on the upper surface of the outer mould bottom plate, and an inner mould plate is arranged on the upper surface of the bottom steel bar frame. Through round holes are formed in the surfaces of the two sides of the inner formwork, a fixing mechanism is arranged on the side surface of the interior of the inner formwork, an embedded part is arranged on the surface of the outer side of the inner formwork, a threaded hole is formed in the center of the embedded part, and the threaded hole of the embedded part is communicated with the through hole in the side surface of the inner formwork. The front side surface and the rear side surface of the outer mold bottom plate are fixedly connected with side sealing plates, and through round holes are formed in the front side surfaces of the side sealing plates. The cable working well is poured out in advance, the prefabricated cable working well only needs to be installed at the designated position in the construction process, the construction efficiency is improved, the embedded part is arranged to be grounded, and the operation safety of workers in the well for maintenance is guaranteed.

The utility model discloses a concrete square tube forming die for partition wall construction, which belongs to the technical field of concrete processing and comprises a base and a placing groove arranged at the top of the base, and a die component is arranged in the placing groove. The mold assembly comprises an inner ring mold and an outer ring mold which are arranged on the inner side of the containing groove, and a transmission unit arranged between the inner ring mold and the outer ring mold. The inner ring mold comprises an inner mold plate arranged in the containing groove, an expansion part arranged on the side face of the inner mold plate and a first telescopic part arranged on the inner side of the inner mold plate. The outer ring mold comprises an outer mold plate arranged in the containing groove and a second telescopic part arranged on the outer side of the outer mold plate, and the structure of the second telescopic part is the same as that of the first telescopic part. Through the arrangement of the mold assembly, operation is convenient and fast, the demolding time is shortened, and the working efficiency is improved.

The utility model discloses a hydraulic machine die which comprises a die bottom plate and die bodies, a plurality of die bodies are vertically and fixedly installed on the top face of the die bottom plate, the die bodies are arranged side by side, a plurality of brick body hole positions corresponding to porous checker brick hole positions in a one-to-one mode are vertically formed in the top face of each die body, and the brick body hole positions correspond to the porous checker brick hole positions in a one-to-one mode. And opening mold core assemblies used for pressing hole sites of the porous checker brick are integrally arranged in the mold main body. The utility model has the beneficial effects that the numerical control screw press ascends to drive the matched guide strip to vertically ascend along the guide groove in the brick making process, so that the core rod piece ascends along the hole site of the brick body and extends out from the top end; meanwhile, the numerical control screw press descends to drive the matched guide strip to vertically descend along the guide groove after brick making is completed, so that the mold core rod piece descends along the hole position of the brick body and is collected into the top end, and the brick pressing ejection use and brick discharging and returning storage modes of the mold core rod piece are simple and easy to realize.

The application discloses a near-net-size integral forming method for large-size reinforced plate silicon carbide components, and particularly relates to the field of ceramic preparation. The near-net-size integral forming tool for the large-size reinforced plate silicon carbide components comprises the following steps: preparing three-stage or four-stage silicon carbide graded powder by using silicon carbide powders with different particle sizes, adding liquid-phase flowing medium, and ball-milling and mixing to obtain silicon carbide slurry with a solid content of 60-70 wt.%; pouring the silicon carbide slurry into a forming tool to obtain a blank; pouring a phenolic solution on the blank, solidifying the blank at 45-155 DEG C, and separating the blank from the tool; embedding the blank by using silicon material, and performing pyrolysis at 410-1550 DEG C to obtain a silicon carbide component. By the method, near-net-size forming can be realized, and deformation and cracking caused by shrinkage stress can be avoided.

The invention relates to an arrangement (1) for producing a reinforced concrete part, comprising a formwork (2), reinforcement (3), and an inflatable hollow body (6). To ensure that the position of the hollow body (6) is precisely maintained during concreting and that the arrangement (1) is easy to assemble, the invention proposes that the hollow body (6) be connected at its underside to a lower reinforcement element (5) of the reinforcement (3) by a connecting element (7), and that the connecting element (7) comprises a first coupling element (8) arranged on the lower reinforcement element (5) and a second coupling element (9) arranged on the hollow body (6).

The utility model discloses a prefabricated part dovetail groove forming supporting device which comprises a cross rotating assembly and a transverse supporting assembly, the cross rotating assembly is formed by rotationally connecting a first inclined plate and a second inclined plate through a first rotating shaft arranged in the middle, and the transverse supporting assembly is formed by rotationally connecting two sections of transverse plates end to end through a second rotating shaft. The two ends of the transverse supporting assembly are rotationally connected with one ends of the first inclined plate and the second inclined plate through a third rotating shaft and a fourth rotating shaft respectively. When a dovetail groove connection water stop requirement is used for a prefabricated part, the forming supporting device which is completely opened can be placed and fixed in a notch reserved in a prefabricated part concrete wall and plate mold, the mold can be rapidly installed, in addition, after the prefabricated part is formed, the device can be easily taken out, the mold can be rapidly taken out, and the work efficiency is improved. The device has the advantages of being convenient to install, lossless in demolding, integrated and recyclable, the production efficiency of the prefabricated part containing the dovetail groove is improved, the production cost is reduced, and the quality of a finished product is guaranteed.

The invention relates to a forming mold of a precast concrete hollow brick, which can solve the technical problem of smooth demolding of a precast brick inner template with upper and lower circles of convex eaves. Comprising an outer mold defining a rectangle and two rectangular inner molds symmetrically arranged in the outer mold, each inner mold is formed by splicing a plurality of mold plate units, a positioning sleeve is hinged to the inner surface of each mold plate unit, the axis of each positioning sleeve intersects at the center of the corresponding inner mold, and a supporting mechanism is arranged in each inner mold. The supporting mechanism comprises a center rod and a lantern ring arranged on the center rod in a sleeving mode, ejector rods are hinged to the peripheral face of the lantern ring and correspond to the positioning sleeves in a one-to-one mode, hinge shafts of the ejector rods are parallel to hinge shafts of the positioning sleeves, the lower ends of the ejector rods are matched with the corresponding positioning sleeves in an inserted connection mode, and the ejector rods have pushing positions and folding positions when used. At the pushing position, the lower end of the ejector rod is inserted into the positioning sleeve, and the axis of the positioning sleeve is horizontal; at the folding position, the ejector rod swings downwards and is attached to the lantern ring.

The application discloses a small-sized inner mold for box girder pouring and belongs to the field of box girder inner molds. The device comprises an inner mold mechanism, a driving mechanism and the like. The inner mold mechanism comprises a bottom mold and lower side molds arranged on both sides of the bottom mold, and an upper side mold is rotatably arranged on the lower side mold. The driving mechanism is arranged between the lower side mold and the upper side mold, and a plurality of first hydraulic cylinders are arranged on the driving mechanism and horizontally distributed along the length direction of the upper side mold. Compared with the prior art, the first hydraulic cylinders are horizontally distributed along the length direction of the upper side mold, the movement of the upper side mold can be completed by the driving mechanism, the inner mold space is effectively utilized, the staff can move more conveniently in the inner mold mechanism, the design of the dismounting mechanism improves the installation and dismounting efficiency of the spiral supporting columns, the staff can make a large amplitude action in the inner mold mechanism is reduced, the labor amount of the staff is reduced, and the production efficiency is improved.

The invention discloses a size-adjustable MIC module mold, and relates to the technical field of constructional engineering, the size-adjustable MIC module mold comprises a bottom plate, an outer mold assembly, an inner mold assembly and a connecting piece, the bottom plate is horizontally arranged; the outer mold assemblies are vertically arranged on the bottom plate, the number of the outer mold assemblies is multiple, and the multiple outer mold assemblies linearly move on the bottom plate; the inner mold assembly is linearly arranged in cooperation with the outer mold assembly, a pouring cavity is formed between the outer mold assembly and the inner mold assembly, and the pouring cavity is used for pouring a mold; the connecting piece is arranged between the outer mold assembly and the inner mold assembly, and the outer mold assembly and the inner mold assembly are connected through the connecting piece. Through the structure, the problem that the size cannot be adjusted in the manufacturing process of the MIC module in the prior art can be solved.

A box girder segmented foldable shrink core mold, which comprises segmented core molds, stacked rod longitudinal connecting steel wires and core mold longitudinal connecting bolts; the adjacent edges of the segmented core molds are connected by the core mold longitudinal connecting bolts to form a whole; a stacked rod longitudinal connecting steel wire is connected between the adjacent segmented core molds. The box girder segmented foldable shrink core mold has the following beneficial effects: the box girder folding inner mold can be stably folded and unfolded, and can be stably separated from the concrete, and the operation is convenient, so that the dismounting efficiency and construction safety of the box girder core mold can be improved.