CN217292763U - Automatic core-pulling mechanism for grouped vertical mold of concrete prefabricated part - Google Patents

Abstract

An automatic core pulling mechanism for a group of concrete prefabricated parts erecting mold comprises the erecting mold, a plurality of core molds, a support, a plurality of core pulling units, a rotating shaft and an executing device, wherein the executing device is a hydraulic swing motor, and the rotating shaft is a spline shaft or a polygonal shaft. The rotating shaft is limited and supported by a support, and each core pulling unit is provided with a back plate, a sliding block, a connecting plate, a bottom pulling box, a hydraulic oil cylinder and the like. When the core mold is in a turnover state, the slide rails in the slide blocks leave the slide grooves, the shaft heads of the articulated shafts are respectively seated in the U-shaped holes of the two supporting plates, the two protruded shafts are respectively seated in the U-shaped holes of the two side plates of the bottom drawer box, and the inclined surfaces of the bottoms of the two plate bodies of the connecting plate are limited by the longitudinal plate of the back plate. A plurality of core moulds can be drawn out, the distance between the core pulling units can be adjusted, each hydraulic oil cylinder independently controls one core pulling unit, and a plurality of groups of core moulds can be simultaneously turned over, so that concrete residues on the surfaces of the core moulds can be conveniently cleaned. The core die has the advantages of reliable work, convenient installation of the component core die, convenient core pulling and manpower and material resource saving.

Description

Automatic core-pulling mechanism for grouped vertical mold of concrete prefabricated part

Technical Field

The utility model relates to a precast concrete component founds mould in groups, very much with the mechanism of loosing core among precast concrete component founds mould in groups is relevant, specifically is a mechanism of loosing core of automation that precast concrete component founds mould usefulness in groups.

Background

At present, most of core pulling devices (core pulling mechanisms) commonly used for group vertical molds can be completed by manually and horizontally pulling cores independently, the efficiency is low, more personnel are needed, and the quality of components is unstable. The core-pulling device is complex in structure and unreliable in work.

The related patent documents: CN112776144A discloses a full-automatic vertical mold support core-pulling mold device and a working method thereof, the full-automatic vertical mold support core-pulling mold device comprises a vertical mold main body and a base frame, a plurality of groups of core mold support frames are arranged on the base frame, the base frame comprises a cross beam, the upper end and/or the lower end of each group of core mold support frames are in sliding fit with the cross beam through first sliding connectors, and the first sliding connectors are adjusted by taking the core mold spacing as the standard so that the core mold support frames are fixed on the cross beam through jackscrews after moving to corresponding positions; the core mold support frame comprises a back plate, and the back plate is positioned on the side surface of the cross beam and connected with the fixing part; the bottom of the core mould is connected with a support assembly, the support assembly comprises a second sliding connecting piece and a main shaft, the core mould rotates around the main shaft to generate inclination, and the second sliding connecting piece is in sliding fit with the side edge of the back plate; the side surface of the back plate is provided with an inclined preformed groove so that the second sliding connecting piece is at least partially separated from the side edge of the back plate when moving to the inclined preformed groove; a first power device for driving the core mold to move up and down along the back plate is connected below the main shaft. CN 111531688A discloses a prefabricated part vertical mold production device and a working method thereof, the prefabricated part vertical mold production device comprises a mold table, the mold table is used for placing a mold frame, and further comprises at least one vertically arranged core mold, the mold table is fixedly connected with a mechanism for installing and disassembling the core mold, and the mechanism for installing and disassembling the core mold comprises a track for the core mold to move along a predetermined track and a power mechanism for driving the core mold to move; on the rail, the core mold moves at least up and down, and the core mold can also move to the following states: a space is formed for the cleaning member to enter for cleaning the core mold.

The technologies have the advantages that the automatic core pulling mechanism for the grouped vertical dies is reliable in work, the core dies of the components are convenient to mount and pull, and a specific guidance scheme is not provided.

Disclosure of Invention

An object of the utility model is to provide an automatic mechanism of loosing core that precast concrete component founds mould usefulness in groups, its reliable operation, installation component mandrel is convenient, and it is convenient to loose core to use manpower and materials sparingly.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides an automatic mechanism of loosing core that concrete prefabricated component is founded in groups mould usefulness has founding mould, a plurality of mandrel, with the lower part fixed connection of founding the mould together the support, with a plurality of unit of loosing core of mandrel one-to-one, its technical scheme lie in automatic mechanism of loosing core that concrete prefabricated component is founded in groups mould usefulness still have the pivot, drive the pivot and rotate the final controlling element of certain angle, final controlling element is hydraulic swing motor, the pivot is the integral key shaft or polygonal shaft, the pivot is by the spacing support of support (last otic placode), every the unit of loosing core all has backplate, two sliders, connecting plate, bottom to be taken out the box, hydraulic cylinder, two pairs of round pin axles. The back plate is fixed on the support and comprises a longitudinal plate and two opposite supporting plates positioned at the bottom of the longitudinal plate, the upper part of the longitudinal plate is provided with a chute, the longitudinal plate is provided with a positioning seat used for fixing a cylinder barrel of a hydraulic oil cylinder, the upper end surfaces of the two supporting plates are provided with U-shaped holes used for supporting articulated shafts connected with piston rod earrings of the hydraulic oil cylinder, and the left side surface and the right side surface of the two supporting plates are provided with a pair of limiting holes used for being connected with a bottom drawer. The two sliding blocks are formed by fixing a sliding plate and a sliding rail which are longitudinally arranged, the sliding plate is provided with a through hole which is fixedly connected with the connecting plate and the core die, the inner side surface of the sliding plate of each sliding block is contacted with the side surface of the back plate, and the sliding rail extends into the sliding groove of the longitudinal plate and is matched with the sliding groove. The connecting plate is provided with two plate bodies which are longitudinally arranged and an articulated shaft connected with a piston rod earring of a hydraulic oil cylinder, the articulated shaft can be installed at the middle parts of the two plate bodies and extends out from the outer side surfaces of the two plate bodies to form two shaft heads matched with a U-shaped hole of the upper end surfaces of the two supporting plates, the upper parts of the two plate bodies are provided with shaft holes used for connecting a sliding block and a core mold, the bottom parts of the two plate bodies are cut into inclined planes used for positioning the connecting plate after the connecting plate rotates, the inner sides of the lower parts of the two plate bodies are respectively provided with a protruding shaft used for being connected with a bottom drawing box to form two protruding shafts, and the two protruding shafts are oppositely arranged. The bottom drawing box is composed of two side plates, a bottom plate, an end connecting plate and a rack, wherein the middle parts of the two side plates are provided with elongated limiting grooves connected with a supporting plate of a back plate, the upper parts of the two side plates are respectively provided with a U-shaped hole matched with a protruding shaft on the connecting plate, and the bottom surface of the bottom plate is fixedly provided with the rack. The fixed shaft simultaneously passes through the through holes on the two sliding blocks, the shaft holes on the two plate bodies of the connecting plate and the connecting hole on the core mold to connect the two sliding blocks, the connecting plate and the core mold together, the cylinder barrel of the hydraulic oil cylinder is arranged on the positioning seat, and the two pairs of pin shafts respectively pass through the limiting holes on the left side surface and the right side surface of the two supporting plates and the limiting grooves on the two side plates to connect the two supporting plates with the bottom drawer; a plurality of gears which are in one-to-one correspondence with the racks on the core pulling units are fixedly arranged on the rotating shafts, each gear is meshed with the corresponding rack on the core pulling unit, and each rotating shaft is connected with an executing device. When the core mold is in a turnover state, the slide rails in the two slide blocks leave the slide grooves, the two shaft heads of the articulated shaft are respectively seated in the U-shaped holes on the upper end surfaces of the two support plates, the two protruding shafts are respectively seated in the U-shaped holes on the upper parts of the two side plates of the bottom drawer box, and the inclined surfaces of the bottoms of the two plate bodies of the connecting plate are limited by the longitudinal plate of the back plate.

In the above technical solution, a preferable technical solution may be: the back plate is fixed on the bracket preferably by a horizontal moving mechanism,the horizontal moving mechanism is provided with a wheel box arranged at the upper part of the bracket and a guide plate arranged at the lower part of the bracket, the wheel box is provided with two guard plates, two idler wheels and a carrier roller, the two idler wheels of the wheel box are arranged on a cross beam at the upper part of the bracket, the inner guard plate of the two guard plates is contacted and fixed with the longitudinal plate of the back plate, the outer guard plate of the two guard plates is provided with a tightly-propping first bolt for positioning the back plate and the bracket after the core-pulling unit is adjusted in place, the tightly-propping first bolt is in threaded connection with the outer guard plate of the two guard plates, and the front end of a screw rod tightly propping the first bolt props the longitudinal plate of the back plate; the guide plate is provided with a concave-shaped bending plate and two marginal plates fixedly connected with the two upper edges of the bending plate respectively, the two marginal plates are fixedly connected with the longitudinal plate of the back plate through bolts respectively, the bending plate is provided with a jacking second bolt used for adjusting the core-pulling unit in place and positioning the back plate and the support, the jacking second bolt is in threaded connection with the bending plate, and the front end of a screw rod jacking the second bolt jacks the longitudinal plate of the back plate. The slide rail in each slide block is preferably cuboid. The rear side surfaces of the two support plates on the back plate are preferably provided with an inverted U-shaped hole for supporting the rotating shaft, and when the rotating shaft passes through each core pulling unit, the rotating shaft is supported by the inverted U-shaped holes on the rear side surfaces of the two support plates on the back plate in the core pulling unit. The rotating shaft can be a spline shaft (standard spline shaft) or a polygonal shaft (which can be made of one or more section steels with polygonal cross sections, and the cross section of the polygonal shaft is a polygon or a regular polygon). The rotating shaft is preferably a regular hexagonal shaft which is a hollow round hole shaft, a round steel pipe is extruded into a hollow round hole of the regular hexagonal shaft, and the wall thickness H of the regular hexagonal shaft ₁ The ratio of the thickness of the circular steel tube to the wall thickness of the circular steel tube is 1: 0.5-0.8. Therefore, the weight of the rotating shaft is reduced, the circular steel tube is arranged to increase the rigidity of the rotating shaft, the rotating shaft is light and reliable to work, and the failure rate of equipment is reduced. The disadvantages of heavy and unreliable operation of the prior rotating shaft are eliminated.

The utility model discloses have found mould, a plurality of mandrel, with the lower part fixed connection of founding the mould support together, with a plurality of mandrel one-to-one loose core unit, pivot, drive pivot rotate the final controlling element of certain angle, the pivot is by the spacing support of support, every loose core the unit and all have backplate, two sliders, connecting plate, bottom and take out box, hydraulic cylinder, two pairs of round pin axles. When the core pulling device works, each core pulling unit is lifted independently, the hydraulic oil cylinders lift up to drive the hinged shaft (namely the oil cylinder shaft) connecting plate, the sliding block and the core mold to lift up together, and concrete is poured after the core pulling device lifts up to the right position. And (3) maintaining the concrete, pulling the core after the concrete reaches the strength, enabling a piston rod of the hydraulic oil cylinder to contract, and enabling the sliding block to drive the core mold and the connecting plate to fall along the sliding chute. Two protruding shafts in the connecting plate are respectively seated in U-shaped holes in the upper parts of two side plates of the bottom drawer, two shaft heads of the hinged shaft are respectively seated in U-shaped holes in the upper end surfaces of two supporting plates, after all the core pulling units on the support are completely withdrawn, an execution device (hydraulic swing motor) is started, the hydraulic swing motor drives the rotating shaft to rotate by a certain angle (for example, 270 degrees), a gear in the rotating shaft drives a rack on the bottom drawer in each core pulling unit to move horizontally, the bottom drawer drives the connecting plate, a sliding block (a sliding groove is separated), the core mold rotates around the hinged shaft, inclined planes of the bottoms of two plate bodies of the connecting plate are limited by a longitudinal plate of the back plate, and after the inclined planes of the connecting plate are attached to the back plate, overturning action is completed. Thus, the utility model discloses can extract the mandrel of a plurality of concrete members, a plurality of intervals of loosing core the unit (the device of loosing core) can be adjusted at will, and unit of loosing core of every hydraulic cylinder independent control, multiunit mandrel can overturn simultaneously, is convenient for clear up the concrete residue on mandrel surface. Through experiment, the utility model discloses a mandrel can conveniently target in place through hydraulic cylinder's top, and once the adjustment can use many times, has improved work efficiency. The hydraulic cylinder shrinks to achieve the purpose of core pulling, the core mould can be turned over, and concrete residues on the core mould can be conveniently cleaned.

To sum up, the utility model discloses reliable operation, equipment fault rate is low, and it is convenient to install the component mandrel, looses the core conveniently to manpower and materials have been saved.

Drawings

Fig. 1 is a schematic structural view (perspective view) of the present invention.

Fig. 2 is a schematic view (perspective view) of the back structure of fig. 1.

Fig. 3 is a schematic structural view (perspective view) after the vertical mold and the core mold of the present invention are removed.

Fig. 4 is a schematic structural diagram (perspective view) of the middle back plate of the present invention.

Fig. 5 is a schematic structural view (perspective view) of a slider in the present invention.

Fig. 6 is a schematic structural view (perspective view) of the middle connection plate of the present invention.

Fig. 7 is a schematic structural diagram (perspective view) of the bottom drawer of the present invention, fig. 7 (a) is a schematic structural diagram of a side surface of the bottom drawer, and fig. 7 (b) is a schematic structural diagram of a bottom surface of the bottom drawer.

Fig. 8 is a schematic structural view (perspective view) of the middle wheel box of the present invention.

Fig. 9 is a schematic structural view (perspective view) of the middle guide plate of the present invention.

Fig. 10 is a schematic structural view of a cross section of the middle rotating shaft of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art without any creative work based on the present embodiment belong to the protection scope of the present invention.

Example 1: as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, the automatic core pulling mechanism for the concrete precast member group erecting mold of the present invention includes an erecting mold 6, a plurality of core molds 4 (the core molds are hole forming molds on the concrete member), a support 1 fixedly connected with the lower portion of the erecting mold, a plurality of core pulling units 3 corresponding to the core molds one by one, a rotating shaft 2, and an actuating device 5 for driving the rotating shaft to rotate by a certain angle. The actuating device 5 is a hydraulic swing motor, and the rotating shaft 2 is a spline shaft or a polygonal shaft. The rotating shaft 2 is limited and supported by an ear plate on the support 1, and each core-pulling unit 3 is provided with a back plate 31, two sliding blocks 32, a connecting plate 33, a bottom drawer 34, a hydraulic oil cylinder 35 and two pairs of pin shafts 36. Each hydraulic cylinder controls one core-pulling unit 3 independently, each support 1 can be connected with 10 core-pulling units 3 at most, core moulds of a plurality of concrete members can be extracted, the distance between the core-pulling units 3 is adjustable, and the number of the core-pulling units can be increased or decreased. One actuator 5 is associated with each spindle 2. The multiple sets (multiple sets) of core moulds 4 can be turned over simultaneously, so that concrete residues on the surfaces of the core moulds can be cleaned conveniently. The bracket 1 is formed by welding sectional materials, and the bracket 1 is fixedly connected with the lower part of the vertical die 6.

As shown in fig. 1, 2 and 4, the back plate 31 is fixed on the bracket 1, the back plate 31 is composed of a longitudinal plate 311 (the longitudinal plate may be a steel plate) and two opposite support plates 314 located at the bottom of the longitudinal plate (the longitudinal plate and the two support plates may be welded together), the upper portion of the longitudinal plate 311 is provided with a sliding slot 312 in which a slider slides, the longitudinal plate 311 is provided with a positioning seat 313 for fixing a cylinder barrel of the hydraulic cylinder 35, the upper end surfaces of the two support plates 314 are provided with U-shaped holes (hinge shafts, i.e., cylinder shafts) for supporting hinge shafts 331 connected to piston rod earrings of the hydraulic cylinder 35, the left and right side surfaces of the two support plates 314 are provided with a pair of limiting holes 315 for connecting to the bottom drawer 34, and the rear side surfaces of the two support plates 314 are provided with (inverted) U-shaped holes for supporting the rotating shaft 2.

As shown in fig. 1, 2 and 5, the two sliding blocks 32 are fixed by a sliding plate 321 (the sliding plate may be a steel plate) and a sliding rail 322 (the sliding plate and the sliding plate may be welded), which are longitudinally arranged, the sliding plate 321 has a through hole 323 for fixedly connecting the connecting plate and the core mold, the inner side of the sliding plate 321 of each sliding block contacts with the side of the back plate 31, and the sliding rail 322 extends (slides) into the sliding slot 312 of the longitudinal plate and is matched (clearance fit) with the sliding slot.

As shown in fig. 1, 2 and 6, the connecting plate 33 has two plate bodies 333 (two plate bodies may be two steel plates) arranged in a longitudinal direction, a hinge shaft 331 (hinge shaft is a middle shaft) connected to a piston rod ear of the hydraulic cylinder 35, the hinge shaft 331 capable of rotating around the two plate bodies 333 is installed in the middle of the two plate bodies 333 and extends from the outer side surfaces of the two plate bodies to form two shaft heads matching with U-shaped holes of the upper end surfaces of the two support plates, the upper parts of the two plate bodies 333 are provided with shaft holes 334 (shaft holes are round holes) for connecting the slide block 32 and the core mold 4, the bottom parts of the two plate bodies 333 are cut into inclined planes 335 (oblique angles) for positioning the connecting plate after the connecting plate 33 rotates and positioning the connecting plate after the connecting plate rotates a certain degree, the inner sides of the lower parts of the two plate bodies 333 are respectively provided with a protruding shaft 332 for connecting with the bottom drawer 34 to form two protruding shafts 332, the two protruding shafts 332 are disposed opposite to each other.

As shown in fig. 1, 2, and 7, the bottom drawer 34 includes two side plates 341, a bottom plate 342, an end connecting plate 344, and a rack 345, the two side plates, the bottom plate, and the end connecting plate are welded by steel plates, the middle portions of the two side plates 341 have elongated limiting grooves 343 (limiting grooves, i.e., sliding grooves) connected to the supporting plate 314 of the back plate, the upper portions of the two side plates 341 have U-shaped holes for matching with the protruding shafts 332 on the connecting plates, and the bottom surface of the bottom plate 342 is fixed (may be welded) with the rack 345.

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the fixed shaft 30 passes through the through holes 323 of the two sliders 32, the shaft holes 334 of the two plate bodies 333 of the connecting plate, and the connecting holes of the core mold to connect the two sliders 32, the connecting plate 33, and the core mold 4 together, the cylinder of the hydraulic cylinder 35 is mounted on the positioning seat 313, and the two pairs of pins 36 pass through the limiting holes 315 on the left and right sides of the two support plates 314 and the limiting grooves 343 of the two side plates 341 to connect the two support plates 314 with the bottom drawer 34. A plurality of gears 8 (which may be a plurality of gears) are fixedly mounted on the rotating shafts 2, the gears 8 correspond to the racks 345 on the core-pulling units one by one, each gear 8 is meshed with the corresponding rack 345 on the core-pulling unit, and each rotating shaft 2 is connected with one actuating device 5. When the core mold is in a turnover state, the slide rails 322 in the two slide blocks 32 are separated from the slide grooves 312, two shaft heads of the hinge shafts 331 are respectively seated in the U-shaped holes on the upper end surfaces of the two support plates 314, the two protruding shafts 332 are respectively seated in the U-shaped holes on the upper parts of the two side plates 341 of the bottom drawer, and the inclined surfaces 335 of the bottoms of the two plate bodies of the connecting plate are limited by the longitudinal plate 311 of the back plate.

As shown in fig. 1, 2, 8 and 9, the back plate 31 is fixed on the support 1 by a horizontal moving mechanism 7, the horizontal moving mechanism 7 has a wheel box 71 installed on the upper portion of the support, a guide plate 72 installed on the lower portion of the support, the wheel box 71 has two guard plates 711, two rollers 713 located between the two guard plates 711, and support rollers 714, the two rollers 713 of the wheel box are installed on the upper cross beam of the support 1, the inner guard plate of the two guard plates 711 is in contact with (attached to) the longitudinal plate 311 of the back plate (the fixing mode may be that a bolt or a screw rod penetrates through the center of the roller and the longitudinal plate of the back plate to be fixed), the outer guard plate of the two guard plates 711 is provided with a tightening first bolt 712 for positioning the back plate and the support after the core pulling unit is adjusted in place, the tightening first bolt 712 is in threaded connection with the outer guard plate of the two guard plates 711, the front end of the screw rod of the first bolt is tightly propped against the longitudinal plate 311 of the back plate. The guide plate 72 has a concave-shaped bending plate 721 and two edge plates 722 respectively fixedly connected with two upper edges of the bending plate, the guide plate can be formed by processing a steel plate, the two edge plates 722 are respectively fixedly connected with the longitudinal plate 311 of the back plate through bolts, the bending plate 721 is provided with a jacking second bolt 723 for positioning the back plate and the support after the core-pulling unit is adjusted in place, the jacking second bolt 723 is in threaded connection with the bending plate 721, and the front end of a screw rod of the jacking second bolt jacks the longitudinal plate 311 of the back plate. When the distance between the core pulling units is adjusted, the tightly-jacking first bolt 712 in the wheel box 71 and the tightly-jacking second bolt 723 in the guide plate 72 are loosened, the back plate is pushed, the proper distance is adjusted, and then the tightly-jacking first bolt and the tightly-jacking second bolt are screwed.

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the actuator 5 for driving the rotating shaft to rotate at a certain angle is a hydraulic swing motor. The rotating shaft 2 rotates 270 degrees through the hydraulic swing motor, the rotating shaft 2 can also rotate through a wrench by people, and the rotating shaft rotates 270 degrees to complete overturning. The slide rail 322 in each slide 32 is rectangular (or has an arcuate geometry in cross-section). The two support plates 314 on the back plate have inverted U-shaped holes on their rear sides for supporting the shaft 2, and when the shaft 2 passes through each core pulling unit 3, the shaft 2 is supported by the inverted U-shaped holes on the rear sides of the two support plates 314 on the back plate in the core pulling unit. The rotating shaft 2 is a spline shaft (standard spline shaft) or a polygonal shaft (can be made of one or more section steels with polygonal cross-sectional shapes), so that the gear is convenient to mount.

As shown in FIG. 10, the rotating shaft 2 is a regular hexagonal shaft which is a hollow round hole shaft, a round steel tube 2' is extruded into the hollow round hole of the regular hexagonal shaft, and the wall thickness H of the regular hexagonal shaft ₁ The ratio of the thickness of the round steel tube to the wall thickness of the round steel tube is 1: 0.8. Therefore, the weight of the rotating shaft 2 is reduced, the round steel pipe is arranged to increase the rigidity of the rotating shaft 2, the rotating shaft 2 is light and reliable in work, and the equipment failure rate is reduced. The disadvantages of heavy and unreliable operation of the prior rotating shaft are eliminated.

The utility model discloses the during operation, every unit of loosing core goes up and down alone, and the hydraulic cylinder jacking drives articulated shaft 331 (the articulated shaft is the hydro-cylinder axle) connecting plate, slider, mandrel and rises together, specifically is that two sliders 32 drive connecting plate 33 and mandrel 4 and do the upward movement of vertical direction along spout 312 on backplate 31 under the effect of hydraulic cylinder 35 jacking, and the jacking targets in place the back, concreting. And (3) curing the concrete, pulling the core after the concrete reaches the strength, contracting a piston rod of the hydraulic oil cylinder 35, and allowing the two slide blocks 32 to drive the core mold 4 and the connecting plate 33 to fall along the sliding groove 312. The two protruding shafts 332 in the connecting plate are respectively seated in the U-shaped holes at the upper parts of the two side plates 341 of the bottom drawer, the two stub shafts of the hinge shaft 331 are seated in U-shaped holes of the upper end surfaces of the two support plates 314 respectively, after all the core pulling units on the support are completely withdrawn (the core molds are completely separated from the outermost outline of the bottom mold, and the core molds are completely pulled out), an execution device (a hydraulic swing motor) is started, the hydraulic swing motor drives the rotating shaft to rotate by a certain angle (for example, 270 degrees), the gear on the rotating shaft drives the rack on the bottom pulling box in each core pulling unit to horizontally move, the bottom pulling box drives the connecting plate, the sliding block (a sliding groove is separated), the core molds rotate around the hinged shaft (331), the inclined planes 335 of the bottoms of the two plate bodies of the connecting plate are limited by the longitudinal plate 311 of the back plate, and after the inclined planes of the connecting plate are firmly attached to the back plate, the overturning action is completed (the hydraulic motor drives the rotating shaft to integrally overturn). The purpose of overturning is to clean concrete residues on the core mould, after the concrete residues are cleaned, a release agent is sprayed on the surface of the core mould, and then the hydraulic swing motor is reset to drive the connecting plate and the like to reset together. And starting the jacking and core pulling actions of the next round, repeating the lifting of the oil cylinder, and overturning and resetting the rotating shaft to complete the prefabrication of each component. Thus, the utility model discloses can extract the mandrel of a plurality of concrete members, a plurality of distances of the device of loosing core can be adjusted at will, and unit of loosing core of every hydraulic cylinder independent control, multiunit mandrel can overturn simultaneously, is convenient for clear up the concrete residue on mandrel surface. Through testing, the utility model discloses a mandrel can conveniently target in place through hydraulic cylinder's top, and once the adjustment can use many times, has improved work efficiency. The hydraulic cylinder shrinks to achieve the purpose of core pulling, and the core mold can be turned over, so that concrete residues on the core mold can be conveniently cleaned. The core-pulling mechanisms in this embodiment may be used alone or may be provided in a plurality of rows forming a matrix.

Compare with the technical scheme (full-automatic upright mould core pulling mould equipment and working method thereof, called as the comparison file) that CN 112776144A discloses, the utility model discloses a backplate (31) is different rather than the structure, and what pivot 2 utilized is the transmission of gear and rack, and the rotation mode utilizes the hydraulic swing motor to realize, and degree of automation is higher, and the cross sectional structure of pivot is different, compares with prior art, the utility model discloses a work efficiency has improved more than 10%.

To sum up, the utility model discloses an above embodiment reliable operation, equipment fault rate is low (equipment fault rate has reduced more than 13%), and it is convenient to install the component mandrel, looses the core conveniently to manpower and materials have been saved.

Claims (6)

1. An automatic core pulling mechanism for a concrete prefabricated part group standing die is provided with a standing die (6), a plurality of core dies (4), a support (1) fixedly connected with the lower portion of the standing die, and a plurality of core pulling units (3) corresponding to the core dies one by one, and is characterized in that the automatic core pulling mechanism for the concrete prefabricated part group standing die is further provided with a rotating shaft (2) and an executing device (5) for driving the rotating shaft to rotate for a certain angle, the executing device (5) is a hydraulic swing motor, the rotating shaft (2) is a spline shaft or a polygonal shaft, the rotating shaft (2) is limited and supported by the support (1), and each core pulling unit (3) is provided with a back plate (31), two sliding blocks (32), a connecting plate (33), a bottom box pulling (34), a hydraulic oil cylinder (35) and two pairs of pin shafts (36);

The back plate (31) is fixed on the support (1), the back plate (31) is composed of a longitudinal plate (311) and two support plates (314) which are arranged oppositely and positioned at the bottom of the longitudinal plate, the upper part of the longitudinal plate (311) is provided with a sliding groove (312), the longitudinal plate (311) is provided with a positioning seat (313) used for fixing a cylinder barrel of a hydraulic oil cylinder (35), the upper end surfaces of the two support plates (314) are respectively provided with a U-shaped hole used for supporting a hinge shaft (331) connected with a piston rod earring of the hydraulic oil cylinder (35), and the left side surface and the right side surface of the two support plates (314) are respectively provided with a pair of limiting holes (315) used for being connected with the bottom drawer (34);

the two sliding blocks (32) are fixed by sliding plates (321) and sliding rails (322) which are longitudinally arranged, the sliding plates (321) are provided with through holes (323) which are fixedly connected with the connecting plates and the core molds, the inner side surfaces of the sliding plates (321) of each sliding block are contacted with the side surface of the back plate (31), and the sliding rails (322) extend into sliding grooves (312) of the longitudinal plates and are matched with the sliding grooves;

the connecting plate (33) is provided with two plate bodies (333) which are longitudinally arranged and a hinge shaft (331) connected with a piston rod lug of the hydraulic oil cylinder (35), the hinge shaft (331) which can rotate around the two plate bodies (333) is arranged in the middle of the two plate bodies (333) and extends out of the outer side surfaces of the two plate bodies to form two shaft heads matched with U-shaped holes on the upper end surfaces of the two supporting plates, the upper parts of the two plate bodies (333) are respectively provided with a shaft hole (334) used for connecting the sliding block (32) and the core mould (4), the bottom parts of the two plate bodies (333) are cut into inclined surfaces (335) used for positioning the connecting plate after the connecting plate (33) rotates, the inner sides of the lower parts of the two plate bodies (333) are respectively provided with a protruding shaft (332) used for being connected with the bottom drawer (34) to form two protruding shafts (332), and the two protruding shafts (332) are oppositely arranged;

The bottom drawer box (34) is composed of two side plates (341), a bottom plate (342), an end connecting plate (344) and a rack (345), wherein the middle parts of the two side plates (341) are provided with strip-shaped limiting grooves (343) connected with a supporting plate (314) of the back plate, the upper parts of the two side plates (341) are respectively provided with a U-shaped hole used for being matched with a protruding shaft (332) on the connecting plate, and the bottom surface of the bottom plate (342) is fixedly provided with the rack (345);

the fixed shaft (30) simultaneously penetrates through holes (323) in the two sliding blocks (32), shaft holes (334) in the two plate bodies (333) of the connecting plate and connecting holes in the core mold to connect the two sliding blocks (32), the connecting plate (33) and the core mold (4) together, a cylinder barrel of the hydraulic oil cylinder (35) is installed on the positioning seat (313), and two pairs of pin shafts (36) respectively penetrate through limiting holes (315) in the left side surface and the right side surface of the two supporting plates (314) and limiting grooves (343) in the two side plates (341) to connect the two supporting plates (314) with the bottom drawer (34); a plurality of gears (8) which correspond to the racks (345) on the core-pulling units one by one are fixedly arranged on the rotating shafts (2), each gear (8) is meshed with the corresponding rack (345) on the core-pulling unit, and each rotating shaft (2) is connected with an executing device (5);

When the core mold is in a turnover state, the sliding rails (322) in the two sliding blocks (32) leave the sliding grooves (312), two shaft heads of the hinge shaft (331) are respectively seated in U-shaped holes in the upper end surfaces of the two supporting plates (314), two protruding shafts (332) are respectively seated in U-shaped holes in the upper parts of two side plates (341) of the bottom drawer, and inclined surfaces (335) of the bottoms of the two plate bodies of the connecting plate are limited by longitudinal plates (311) of the back plate.

2. The automatic core pulling mechanism for the group standing die of the precast concrete components according to claim 1, characterized in that the back plate (31) is fixed on the bracket (1) by a horizontal moving mechanism (7), the horizontal moving mechanism (7) is provided with a wheel box (71) arranged at the upper part of the bracket and a guide plate (72) arranged at the lower part of the bracket, the wheel box (71) is provided with two guard plates (711), two rollers (713) and a carrier roller (714) which are positioned between the two guard plates (711), the two rollers (713) of the wheel box are arranged on the upper cross beam of the bracket (1), the inner guard plate of the two guard plates (711) is contacted and fixed with the longitudinal plate (311) of the back plate, the outer guard plate of the two guard plates (711) is provided with a first jacking bolt (712) for positioning the back plate and the bracket after the core pulling unit is adjusted in place, the jacking first bolt (712) is in threaded connection with the outer guard plate of the two guard plates (711), and the front end of the screw of the jacking first bolt jacks a longitudinal plate (311) of the back plate; the guide plate (72) is provided with a concave-shaped bending plate (721) and two edge plates (722) fixedly connected with two upper edges of the bending plate respectively, the two edge plates (722) are fixedly connected with a longitudinal plate (311) of the back plate through bolts respectively, a jacking second bolt (723) used for positioning the back plate and the support after the core-pulling unit is adjusted in place is arranged on the bending plate (721), the jacking second bolt (723) is in threaded connection with the bending plate (721), and the front end of a screw rod jacking the second bolt jacks the longitudinal plate (311) of the back plate.

3. The automatic core-pulling mechanism for the grouped erection of concrete precast elements according to claim 1, wherein the slide rail (322) of each slide block (32) has a rectangular parallelepiped shape.

4. The automatic core pulling mechanism for the grouped vertical formwork of the concrete prefabricated part is characterized in that the back sides of the two support plates (314) on the back plate are provided with inverted U-shaped holes for supporting the rotating shaft (2), and when the rotating shaft (2) passes through each core pulling unit (3), the rotating shaft (2) is supported by the inverted U-shaped holes on the back sides of the two support plates (314) on the back plate in the core pulling unit.

5. The automatic core-pulling mechanism for the grouped vertical formwork of the precast concrete component according to claim 1, wherein the rotating shaft (2) is a spline shaft.

6. The automatic core-pulling mechanism for the group standing die of the concrete prefabricated part according to claim 1, characterized in that the rotating shaft (2) is a regular hexagonal shaft which is a hollow round hole shaft, a round steel pipe (2') is extruded into the hollow round hole of the regular hexagonal shaft, and the wall thickness H of the regular hexagonal shaft ₁ The ratio of the thickness of the circular steel tube to the wall thickness of the circular steel tube is 1: 0.5-0.8.

Images