318results 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 construction technology for a prefabricated drainage box culvert steel formwork, and is suitable for the technical field of box culvert formwork construction. The drainage box culvert steel formwork system comprises the construction steps of construction preparation, installation of a pedestal and an inner formwork support, installation of a box culvert foundation, installation of an inner formwork assembly, installation of a formwork assembly, one-time pouring forming, formwork removal after pouring and transferring. The construction site regionalization layout is adopted, a box culvert steel bar binding area and a formwork installation transverse moving area with an adjustable inner formwork support are arranged, the circulating operation of formwork erecting, pouring, demolding and transferring is achieved through a main beam suspension type inner formwork assembly, and a hydraulic formwork collecting device is innovatively adopted for driving a symmetrical hinged type inner formwork system; and in combination with the symmetry and multi-point uniform stress characteristics of a plurality of auxiliary supporting devices, the bending deformation of the inner template is effectively controlled through sequential control of a layered equal-height high-speed pouring process with preferential base angles.

The utility model relates to a hollow inner mold anti-floating fixing support, and relates to the technical field of bridge engineering, the hollow inner mold anti-floating fixing support comprises two co-pressing beams and a base connected with an outer mold, the two sides of the base are symmetrically and fixedly provided with at least two sets of vertical rod pieces, the vertical rod pieces are arranged in the vertical direction, and the height of the vertical rod pieces can be adjusted; wherein one co-pressing beam is fixedly connected with the tops of all the vertical rod pieces located on one side of the base, the other co-pressing beam is fixedly connected with the tops of all the vertical rod pieces located on the other side of the base, the bottoms of the two co-pressing plates are jointly provided with a plurality of cross beams, the bottoms of the cross beams are vertically provided with connecting pieces, and the connecting pieces are used for connecting the cross beams and the inner film. The device has the effect of conveniently adjusting the position of the cross beam so as to correct and adjust the height position of the inner film.

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.

To provide a hollow form for a precast segment girder and a manufacturing method of the precast segment girder, which can efficiently manufacture a cross section reverse U-shaped precast segment girder capable of easily recognizing aging degradation by visual inspection, a static image, a moving image or the like.SOLUTION: A hollow form 100 for a precast segment girder is for forming a hollow part (21) of a cross section reverse U-shaped precast segment girder (2) where an opening groove (22) is formed by opening a lower part of the hollow part (21) like a groove. The hollow form 100 is partitioned into multiple narrower width pieces than the width of the opening groove (22), and is constituted to be able to remove a form by extracting each piece among the multiple pieces of the hollow form 100 from the opening groove (22) after concrete placing.SELECTED DRAWING: Figure 6

The invention discloses a prefabricated drainage box culvert steel formwork system which is suitable for the technical field of box culvert formworks. The prefabricated drainage box culvert steel formwork system comprises a pedestal, an outer formwork assembly and an inner formwork assembly. The inner formwork assembly comprises an inner formwork supporting system, a walking system and a hydraulic system. The walking system comprises a main beam and inner mold supports, the two sides of the pedestal are each provided with one inner mold support, the main beam is located over the pedestal, the bottoms of the two ends of the main beam are erected on the inner mold supports, supporting frames are arranged at the two ends, within the range between the two inner mold supports, of the main beam, and supporting legs are arranged at the two ends of the transverse bottom of each supporting frame. Each supporting leg is provided with a walking wheel. The inner mold supporting system comprises a plurality of supporting units and a mold retracting device, each supporting unit comprises an inner top mold, an inner side mold, an angle mold and the mold retracting device, and the mold retracting device is controlled by a hydraulic system to stretch out and draw back to adjust the inner side mold and the angle mold to be in place. Hydraulic linkage is combined with the walking system to achieve automatic contraction and transfer, and the internal mold turnover rate is high.

The utility model relates to an ecological frame mold, and relates to the technical field of ecological frame molds. The ecological frame mold is used for manufacturing an ecological frame and comprises an outer mold mechanism and an inner mold mechanism. The sliding rails are arranged to drive the four formworks of each outer formwork mechanism, the formwork disassembling and assembling efficiency of the outer formwork mechanisms can be improved, and the construction efficiency of ecological frame manufacturing is improved; after an inner mold mechanism is installed on the bottom mold plate, a first rack and a second rack can be driven by rotating a gear bearing rod so as to drive a first pull rod and a second pull rod to move, and then the two L-shaped inner mold plates and the two fillet inner mold plates are controlled to conduct mold disassembly and mold assembly movement; and the two fillet inner templates and the two L-shaped inner templates have a certain motion starting time difference, so that the two templates do not interfere with each other when the two templates are subjected to mold removal and mold closing motion, normal operation of the mold removal work can be guaranteed, and the mold removal and mold closing efficiency of the inner mold mechanism can be effectively improved.

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 utility model discloses a bidirectionally adjustable horizontal prefabricated box culvert mold which comprises an outer mold set and an inner mold, and a pouring mold cavity is formed between the outer mold set and the inner mold. The outer die set comprises a bottom die, a first vertical die, a second vertical die and two groups of end dies; the second vertical mold is connected with the bottom mold through an adjusting part; the adjusting part is used for adjusting the distance between the first vertical mold and the second vertical mold; any group of end molds are positioned on the same side of the first vertical mold and the second vertical mold, and the end molds are respectively propped against the side surfaces of the first vertical mold and the second vertical mold; the two end molds are located on the two sides of the first vertical mold and the two sides of the second vertical mold, and the end molds are detachably connected with the first vertical mold and the second vertical mold through first quick release mechanisms correspondingly. The end mold comprises four end mold corner pieces, and every two adjacent end mold corner pieces are connected through a plurality of end mold edge pieces which are connected in sequence; the inner die comprises four inner die corner fittings, and every two adjacent inner die corner fittings are connected through a plurality of inner die edge fittings which are connected in sequence. The box culvert mold can be adjusted to be in various sizes, and the purchasing cost and the construction cost of the mold are reduced.

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 present invention discloses a fully automatic mold-standing and core mold-extracting device, comprising a mold-standing body and a base frame, wherein a plurality of core mold support frames are arranged on the base frame, and the base frame comprises a crossbeam, wherein the upper end and / or lower end of each core mold support frame is slidably matched with the crossbeam via a first sliding connection member, and the first sliding connection member is adjusted based on the core mold spacing so that the core mold support frame moves to a corresponding position and is fixed to the crossbeam with a top screw; the core mold support frame comprises a back plate, which is located on the side of the crossbeam and connected to a fixed component; the bottom of the core mold is connected to a support assembly, which comprises a second sliding connection member and a main shaft, and the core mold rotates around the main shaft to generate an inclination, and the second sliding connection member and the side edge of the back plate are slidably matched; a tilting reserved groove is provided on the side of the back plate, so that the second sliding connection member is at least partially separated from the side edge of the back plate when it moves to the tilting reserved groove; a first power device is connected below the main shaft to drive the core mold to move up and down along the back plate. The present invention also discloses a working method of the above-mentioned device.

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.

The invention discloses a flat die horizontal core-pulling machine which comprises a rack, a core-pulling trolley is arranged at one end of the rack in a sliding mode, a plurality of core pipes are fixedly installed on one side of the core-pulling trolley, a supporting assembly is fixedly installed at the end, away from the core-pulling trolley, of the rack, and a pressing assembly is arranged at the end, close to the supporting assembly, of the rack in a sliding mode. The core tube penetrates through the supporting assembly and the pressing assembly and is located between the supporting assembly and the pressing assembly, a movable plate is arranged on the core pulling trolley, a stop block is arranged on the side wall of the end, close to the pressing assembly, of the rack, and the stop block is matched with the movable plate; the movable plate is in contact with the stop block on the rack, the movable plate is pressed downwards, so that the movable plate drives the pressing assembly to apply pressing force to the end, close to the core pulling trolley, of the core pulling pipe, at the moment, the core pipe is regarded as a warping plate, the supporting assembly is converted into a fulcrum, and the pressing force of the pressing assembly enables the far end of the core pipe to receive supporting force to resist the self weight and guarantee that the core pipe is horizontal.

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 present invention relates to the technical field of tunnel lining manufacturing, and specifically to a device for making a tunnel lining model with crack characteristics and a method for making the same, comprising a combined slide rail located above an outer mold, a plurality of telescopic components slidably connected to the lower end of the combined slide rail, the lower end of the telescopic component being movably connected to a ball socket cylinder via a first ball head, the ball socket cylinder being movably connected to a ball socket rod, the other end of the ball socket rod being movably connected to a crack mold, and a heating wire being provided in the crack mold. The outer mold and the inner mold are combined to form a tunnel lining mold, and a plurality of crack molds are provided. When in use, it is only necessary to disassemble the inner mold combination block and then select a nearby crack mold to cut a crack at a designated location. The range of movement of the crack mold is very large, so it can meet various needs for quantitative crack production. A heating wire is provided in the crack mold, and the crack cut in the tunnel lining is quickly solidified by heating.

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 an internal mold hydraulic trolley for double T-beam internal mold construction, which comprises a trolley body, a hydraulic jacking assembly and a connecting assembly, the hydraulic jacking assembly is arranged on the trolley body, and the hydraulic jacking assembly is provided with a jacking end moving along the vertical direction; the connecting assembly comprises a hinge seat and an angle adjusting part, the jacking end of the hydraulic jacking assembly is connected with the middle of the inner mold through the hinge seat, the angle adjusting part is installed at the jacking end of the hydraulic jacking assembly, and the output end of the angle adjusting part is connected with the inner mold; the bottom molds and the outer molds are sequentially arranged on the two sides of the inner mold, the inner mold is installed at the jacking end of the jacking assembly, the inner mold is conveniently driven to move through the arranged trolley body, and meanwhile the inner mold is conveniently driven to move in the vertical direction through the arranged hydraulic jacking assembly; the angle adjusting piece can drive the inner mold to rotate around the hinge base so as to adjust the inclination angle of the inner mold, and adjustment is convenient.

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 discloses a concrete cover prefabricated part mould which comprises a mould frame, a bearing rod, a hollow first cylinder piece and a hollow second cylinder piece, the mould frame is provided with a bottom plate part, a mounting hole group and an annular hole arranged around the bottom plate part, the bottom plate part is provided with an open hole, the mounting hole group comprises at least two mounting holes which are sequentially arranged from top to bottom, and the first cylinder piece and the second cylinder piece are arranged on the bearing rod. The bearing rod detachably penetrates through the corresponding mounting hole, the first cylinder part penetrates through the annular hole in a lifting mode, the second cylinder part penetrates through the open hole in a lifting mode, the second cylinder part and the first cylinder part abut against the upper portion of the bearing rod, and a forming cavity is jointly defined by the inner cylinder wall of the first cylinder part, the bottom plate part and the outer cylinder wall of the second cylinder part; the forming cavity is provided with an upward opening, the bearing rod can be moved from one mounting hole to the other mounting hole, the abutting joint positions of the second barrel piece and the bearing rod and the abutting joint positions of the first barrel piece and the bearing rod both ascend or descend, and the depth of the forming cavity is correspondingly increased or decreased.

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.