CN110565647B - Compound maintenance bin construction method for PC component assembly line - Google Patents

Abstract

The invention belongs to the technical field of PC component assembly line construction, and particularly relates to a compound maintenance bin construction method for a PC component assembly line. The method comprises the following steps: digging out a foundation pit; pre-embedding a steel bar net rack, and putting a foundation steel bar rack; fixing the positioning tool and each foundation steel bar frame, and adjusting the level and elevation; pouring concrete for the first time; removing the positioning tool; pouring concrete for the second time; forming a front bin and a rear bin; and a mould table access device is arranged in the area between the front bin and the rear bin. The invention can effectively save labor, and the construction precision requirement of the upright post can be met by one-time construction; meanwhile, on the premise of ensuring the external sealing performance of the internal curing environment of the curing kiln, the curing bin occupies a smaller area and has the advantages of high automation degree and low operation threshold.

Description

Compound maintenance bin construction method for PC component assembly line

Technical Field

The invention belongs to the technical field of PC component assembly line construction, and particularly relates to a compound maintenance bin construction method for a PC component assembly line.

Background

PC components, i.e. concrete pre-forms, are concrete component products produced by standardized, mechanized processes in factories. After the PC component is produced, the PC component is only required to be pulled to a construction site during use and hoisted to a floor needing to be assembled by hoisting equipment, and building construction can be completed like building blocks. In a factory, the PC component is produced in an annular assembly line mode, and the production processes comprise the processes of die table cleaning, line drawing, side die assembling, oil spraying, ferrying, material distributing, vibrating, surface leveling, maintaining, grinding, maintaining and demolding. The maintenance process of the PC component is maintained through a three-dimensional maintenance bin, and the standard of the three-dimensional maintenance bin is four rows of eight layers of maintenance bins. On one hand, after the four-row eight-layer curing bins are built, the front and rear bins have 60 upright posts, and the foundation bottom plate of each upright post is provided with 8 foundation bolts for fixing, and the number of the foundation bottom plates is 480; a top view of the foundation sole plate is shown with reference to fig. 1. Because stand quantity is very much, for guaranteeing maintenance storehouse installation accuracy, the installation requirement of stand includes: firstly, the ground levelness of each upright post is required to be within 2 mm; secondly, the central displacement degree of each upright post is within the range of 2 millimeters; and thirdly, the verticality of each upright post is within the range of 2 millimeters. In practical situations, each upright post is independently buried and then connected with each other through the transverse rib plates in the later period, so that the installation error rate of each upright post is extremely high, and the construction precision of the upright post in actual construction cannot meet the requirements at all. And because the construction precision of the stand column can not meet, the matching precision of the stand columns can not meet the production requirement. The existing method can only be compensated afterwards, namely after the foundation slab of the upright post is completely buried, the mounting hole of the foundation slab with deviation is artificially welded and cut to be large, namely the original straight hole-shaped mounting hole is transversely cut into a waist-shaped hole-shaped mounting hole, so that the function of online adjusting the position of the foundation slab is realized, and the mounting precision of the upright post is ensured. The later-period adjusting mode is time-consuming and labor-consuming, meanwhile, the installation cost is obviously increased, and the construction period is extremely delayed. Even sometimes, the construction error of the foundation slab is large enough, so that even if the mounting hole cuts the edge of the foundation slab, the accuracy requirement after the mounting of the stand column cannot be met, and the stand column needs to be reworked again. On the other hand, the maintenance storehouse in the traditional maintenance storehouse is the individual layer structure of arranging side by side, and the door all faces one side, need adopt the manpower mode of getting the mould when getting the mould after the maintenance, and waste time and energy and the security is relatively poor, produces the incident easily, these all bring a great deal of puzzlement for PC component manufacturing factory.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the compound maintenance bin construction method for the PC component assembly line, which can effectively save labor and meet the construction precision requirement of the upright post through one-time construction; meanwhile, on the premise of ensuring the external sealing performance of the internal curing environment of the curing kiln, the curing bin occupies a smaller area and has the advantages of high automation degree and low operation threshold.

In order to achieve the purpose, the invention adopts the following technical scheme:

a compound maintenance bin construction method for a PC component assembly line is characterized by comprising the following steps:

s1), digging two groups of foundation pits corresponding to the positions of the front bin and the rear bin of the curing bin;

s2), embedding a reinforcing steel bar net rack in the foundation pit to form a foundation, and putting a pre-tied foundation reinforcing steel bar frame in a reserved pit of the foundation;

s3), buckling the working surface of the horizontally arranged positioning tool downwards on the foundation, enabling the mounting seats convexly arranged downwards on the working surface of the positioning tool to correspond to the foundation steel bar frames one by one, and fixedly connecting the corresponding mounting seats and the foundation steel bar frames in a threaded manner through foundation bolts; after the positioning tool and each foundation steel bar frame are fixed, adjusting the level and elevation of the positioning tool, and then fixing and positioning the positioning tool on the foundation;

the positioning tool is in a plane square frame shape, the bottom surface of the positioning tool forms the working surface, mounting seats are convexly arranged at the bottom surface corresponding to the mounting holes of the base bottom plate of the stand column, each mounting seat is in a flange structure, and assembling holes are arranged on the mounting seats in a penetrating mode; the positions of the assembly holes are in one-to-one correspondence with the corresponding mounting holes at the foundation slab of each upright post;

s4), performing first concrete pouring to fix the foundation reinforcing steel bar frame;

s5), after the concrete is solidified, removing all foundation bolts, and moving away the positioning tool, wherein all foundation steel bar frames are located at the designated positions;

s6), installing the foundation slab and the upright post, and performing secondary concrete pouring on the root of the upright post to fix the foundation slab;

s7), respectively installing linking frames at the upright posts where the front bin and the rear bin are located, so as to form the front bin and the rear bin which are provided with a plurality of layers of curing kilns arranged in parallel, wherein the kiln mouth of the curing kiln at the front bin and the kiln mouth of the curing kiln at the rear bin are arranged opposite to each other;

s8), installing a mould table access device in the area between the front bin and the rear bin;

the die table storing and taking device comprises a square cylindrical frame-shaped storing and taking vehicle which can horizontally reciprocate along the direction vertical to the die table material storing direction and is horizontally arranged along the axis, and two cylinder openings of the storing and taking vehicle respectively point to a front bin opening and a rear bin opening of the curing bin; a lifting platform capable of generating reciprocating lifting action along the vertical direction is arranged in the storing and taking vehicle, and the table surface of the lifting platform forms a placing surface for placing the mold table; the two end parts of the lifting platform, which are positioned at the two cylinder openings of the access vehicle, are named as the front end and the rear end of the access vehicle, and the front end and the rear end of the lifting platform are respectively and uniformly provided with an auxiliary roller assembly for assisting in guiding the die table into the die table or assisting in delivering the die table and a push-pull assembly for hooking the die table into and delivering the lifting platform; the action direction of the push-pull assembly is parallel to the material storage direction of the die table, and the auxiliary roller assemblies are respectively arranged at two sides of the axis of the push-pull assembly in a mode of two groups as a pair; the auxiliary roller assembly comprises a roller with the axis vertical to the material storage direction of the die table and the wheel shaft horizontally arranged and a power motor for driving the roller to rotate; the push-pull assembly comprises a push-pull piston cylinder with a stroke direction parallel to the material storage direction of the die table, the cylinder wall of the push-pull piston cylinder is hinged and fixed on the table top of the lifting platform, and the end of a piston rod of the push-pull piston cylinder is fixedly connected with the material taking head; the material taking head comprises a slide rail and a slide plate which is fixedly connected to the lifting platform frame and forms guiding fit with the slide rail, and the advancing direction of the slide plate relative to the slide rail is parallel to the material storing direction of the die table; the tail end of the sliding plate is fixedly connected with the end of a piston rod, a rotating shaft with the axis parallel to the material storage direction of the die table is rotatably matched on the sliding plate, and the rotating shaft is driven by a rotating motor to rotate; a hook plate used for hooking the formwork table from the curing kiln is arranged at one shaft end of the rotating shaft, which is relatively far away from the push-pull piston cylinder, and the hook plate extends outwards along the radial direction of the rotating shaft;

the die table storing and taking device also comprises a door opening mechanism for lifting a lifting door at the kiln opening of the corresponding curing kiln, the door opening mechanism comprises a portal frame erected at the front end and the rear end of the lifting platform, and the auxiliary roller assembly and the push-pull assembly are both positioned in the area between two vertical upright rods of the portal frame; a group of door opening support blocks capable of lifting along the length direction of the vertical upright rods are uniformly distributed on the two vertical upright rods of the portal frame; the lifting doors at the kiln mouths of the front and rear bins comprise door bodies capable of lifting along the vertical direction, the door bodies are guided and matched with the kiln mouths of the curing kilns through a double-row vertical track passing through the kiln mouths of all layers of curing kilns, and the door bodies at the adjacent layers of curing kilns are abutted against each other so that the door bodies at the lower layer can push the door bodies at the upper layer to generate synchronous lifting action; the door body is provided with a spigot lug corresponding to the position of the door opening support block, so that the door opening support block can be transversely displaced to the lower part of the spigot lug and then can lift the lifting door from bottom to top by virtue of the lifting action of the door opening support block and open the kiln mouth of the current curing kiln.

Preferably, the appearance of the vertical upright rod is in a square groove shape vertically arranged in the groove length direction; the notch of the vertical upright rod points to the direction of the mold taking table; the door opening support block is in an L-shaped block shape; through holes are arranged at the two groove walls of the vertical upright rod in a penetrating manner, and the through holes extend downwards along the vertical direction to form a waist-shaped hole structure; guide wheels are fixedly connected to two side portions of the door opening support block, which are positioned in the groove cavity of the vertical rod, a rolling type guide rail is formed between each guide wheel and the wall of the through hole for guiding and matching, and the horizontal section of the door opening support block horizontally extends out of the vertical rod through the groove opening of the vertical rod so as to realize the support function of the spigot lug; a group of chain wheels with wheel shafts horizontally arranged and the axis of the wheel shafts vertical to the material storage direction of the die table are uniformly distributed at the top end and the bottom end of the groove cavity of the vertical upright rod, two groups of chain wheels at each group of vertical upright rods form a driving chain wheel and a driven chain wheel respectively, the two groups of chain wheels form chain transmission fit through a driving chain, and a door opening support block is fixedly connected with the driving chain; the door opening mechanism also comprises a door opening motor for driving the chain wheel to rotate.

Preferably, the door opening motor is arranged at the middle section of the cross rod of the portal frame, the door opening motor drives two groups of equidirectional screw rods which are coaxial with each other and extend in opposite directions to rotate, and the equidirectional screw rods form hole-shaft fit with driving chain wheels positioned at the top ends of the groove cavities at the corresponding vertical upright rods through universal shafts.

Preferably, the lifting platform is in a square plate type frame shape arranged horizontally; arranging the auxiliary roller assemblies at the four corner ends of the lifting platform; the top of the access vehicle is provided with a traction motor, the traction motor is used for driving four groups of traction rollers, one ends of the four groups of pull ropes are respectively wound at one group of traction rollers, the other ends of the four groups of pull ropes are respectively deflected by corresponding turning wheels positioned at the top end of the access vehicle and then vertically extend downwards and are matched with steering wheels arranged at the corner ends of the lifting platform, so that after the pull ropes are vertically extended downwards from the turning wheels, the pull ropes can be deflected by the corresponding steering wheels and then vertically fixed at the top frame body of the access vehicle upwards, and finally the lifting platform is ensured to be vertically lifted and lowered with a horizontal plate surface.

Preferably, the rotary supporting seats are arranged at the two plate ends of the upper plate surface of the sliding plate, so that the rotating shaft is matched with the sliding plate in a rotary manner; one end of the hook plate arranged on the rotating shaft is taken as the front shaft end of the rotating shaft, a sector plate used for limiting the rotation amplitude of the rotating shaft is fixedly connected to the rear shaft end of the rotating shaft, the surface of the sector plate is vertical to the axis of the rotating shaft, and the included angle between two sector edges of the sector plate is 90 degrees; the upper plate surface of the sliding plate is also provided with a convex column for limiting the swing amplitude of two fan-shaped edges of the fan-shaped plate.

Preferably, the push-pull assembly further comprises a slide rail seat for placing the slide rail, and the slide rail seat is fixedly connected to the lifting platform frame; the slide rail seat is in a right-angle groove shape, and a rectangular cavity channel-shaped accommodating cavity is formed by the slide plate and the groove wall and the groove bottom of the slide rail seat in a surrounding way; a rotating motor is fixedly connected in the accommodating cavity, and a chain wheel at the output shaft of the rotating motor and a gear coaxially arranged at the rotating shaft form chain transmission fit; the slide plate body is provided with a avoiding hole for the connecting chain to pass through in advance.

Preferably, a hinged seat is arranged on the lifting platform, the cylinder wall of the push-pull piston cylinder is hinged and matched with the hinged seat, and the axis of a hinged shaft of the push-pull piston cylinder and the axis of the hinged shaft of the push-pull piston cylinder are horizontally arranged.

Preferably, the positioning tool comprises two groups of subframes and a connecting frame for connecting the two groups of subframes; the sub-frame is a 'well' -shaped planar frame structure formed by five transverse rods and six longitudinal rods which are crisscrossed with each other, and each mounting seat is arranged at the crossed point of the transverse rods and the longitudinal rods; two sets of sub-frames are respectively arranged right above the foundation where the front cabin of the maintenance cabin is located and right above the foundation where the rear cabin is located, and the two sets of sub-frames are welded and fixed through connecting frames to form an integrated positioning tool.

Preferably, cornice beams are fixedly connected to the tops of bin openings of the front bin and the rear bin, the cornice beams are horizontally arranged, the length direction of the cornice beams is perpendicular to the material storage direction of the die table, a frame body of the access car top portion extends to the cornice beams of the front bin and the rear bin respectively, and the cornice is matched with the cornice beams in a rolling mode through guide wheels and forms a horizontal guide rail with the cornice beams in a guiding mode; the guide wheel is driven by a guide motor to drive the access vehicle to horizontally reciprocate along the direction vertical to the material storage direction of the die table.

The invention has the beneficial effects that:

1) on the one hand, the invention solves the problem of extremely large installation error caused by the fact that the foundation steel bar frames are directly embedded in the foundation pit, the construction scheme is improved, the reserved pit for placing the foundation steel bar frames is constructed in the foundation in advance, and meanwhile, the positioning tool is used as an external positioning piece to realize the function of positioning and assembling the foundation steel bar frames in the reserved pit one by one. During actual construction, when the positioning tool is erected right above the foundation, due to the positioning function of the positioning tool, the positions of the foundation steel bar frames fixedly suspended at the positioning points of the positioning tool are accurately limited, and finally, the requirement of construction precision of the stand column can be met through one-time construction. On the other hand, the traditional manual mold taking process is improved into a mechanical automatic mold taking mode, so that the convenience and the high efficiency of the whole maintenance process are ensured. The lifting platform is lifted relative to the access vehicle to ensure the lifting effect of the mold platform, and the push-pull piston cylinder is matched with the matching structure of the rotating motor to realize the rapid hooking and pushing functions of the mold platform in the curing kiln through the forward-rotating-backward actions of the hook plate. During specific operation, the hook plate is in a lodging state in an initial state, so that when the push-pull piston cylinder pushes the whole sampling head to move forwards, the hook plate can avoid the corresponding side wall of the die table to enter a hooking position; when the hook plate moves forward in place, the rotating shaft is driven to move by the action of the rotating motor, and the working flow from lodging to standing is further realized. When the hook plate is upright, the hook plate just hooks the corresponding inner wall of the die table, and then the discharging function of the whole die table and the prefabricated part positioned on the die table can be realized along with the return stroke action of the push-pull piston cylinder. When the die table and the prefabricated part on the die table are discharged in place, the parallel operation of the die table relative to the rail can be realized by continuously depending on the mechanical arm of the storing and taking machine. Of course, when the hook plate is in the vertical state, the function of pushing the die table into the curing kiln can be realized. The mould table access device can be controlled by an electric appliance in the whole course, can realize automatic operation, saves manpower, can be directly assembled at the mechanical part of the existing production line, and has extremely low updating cost and wide market prospect.

In addition, the external sealing performance of the front bin and the rear bin for directly placing the mould table is very important, which is concerned with the forming quality of the PC component in the curing kiln body. The kiln mouth of each curing kiln is provided with a group of lifting doors in one-to-one correspondence, so that the aim of sealing the kiln mouth can be fulfilled by closing the lifting doors downwards after the mold table is placed in the kiln mouth, and the temperature maintaining function of the environment of the curing kiln body in the front bin and the rear bin is ensured. When the mould platform needs to be taken out or sent into the mould platform, the door opening support block can support the spigot lug at the corresponding lifting door from bottom to top through the transverse movement of the access vehicle, and then the sliding door can be lifted through the upward movement of the door opening support block, so that the mould platform in the corresponding curing kiln is exposed. And then, the function of quickly taking out or storing the mold table in the current curing kiln can be conveniently realized through the action of the push-pull assembly.

2) The lifting action of the door opening support block can be realized through structures such as a hydraulic cylinder, and the like, and the normal work of the door opening support block is ensured by preferably adopting a matching structure of chain transmission and a equidirectional screw rod. In actual operation, the two groups of equidirectional screw rods which extend coaxially in opposite directions are driven by the door opening motor to rotate. When the equidirectional screw rods rotate, the driving chain wheels at two deviating ends of the two screw rods are driven to move in the same direction, so that the driving chain is driven to rotate, and then the follow-up lifting action of the door opening support block is realized. The chain transmission can provide the door opening support block with relatively large lifting force, so that the reliable and stable lifting function of the heavy lifting door can be realized.

3) As a further preferable scheme of the above scheme, the auxiliary roller assemblies are generally arranged in four groups and located at four corner ends of the lifting platform, so that no matter which end of the lifting platform the mold table feeds and which end discharges, the mold table is firstly placed on the roller surface of the auxiliary roller assembly after being pulled or pushed by the push-pull assembly, and then the rollers are rotated under the action of the driving motor, so that the purposes of discharging and feeding of the mold table are achieved. The traction motor directly realizes the purpose of controllable lifting of the lifting platform through four groups of traction rollers. Of course, during actual operation, the controllable lifting of the lifting platform can be realized by means of a hydraulic cylinder and the like, and the details are not repeated here.

4) The rotation amplitude of the rotating shaft directly defines the action range of the hook plate. In the large environment of the invention, the hook plate can be in two positions of lodging and standing, which means that the rotating shaft can rotate within 90 degrees in a small range. Therefore, the push-pull assembly of the present invention is provided with the sector plates as the stopper plates, thereby limiting the range of motion of the rotating shaft. When the rotating shaft is driven by the rotating motor to rotate, the sector plate rotates along with the rotating shaft, and the sector plate is stopped to continuously rotate along with the abutting limit of the sector edge of the sector plate and the corresponding side convex column, so that the purpose of fixed-amplitude action of the rotating shaft is achieved, and the rotating shaft is reasonable and compact in structure and extremely high in working reliability.

5) For the rotating motor, if the rotating shaft is directly connected through the output shaft, the condition of action interference with the push-pull piston cylinder is easily generated due to the arrangement position of the rotating motor; meanwhile, the working array capacity of the rotating motor is easy to be transmitted to the sliding plate and even the hook plate. Therefore, the push-pull assembly adopts a chain transmission mechanism, and the rotating motor is accommodated in the accommodating cavity of the slide rail seat, so that the structure compactness is ensured, and meanwhile, the reliable and stable action of each component of the push-pull assembly is also ensured.

6) The positioning tool is substantially a positioning tool. When the positioning tool is covered over the foundation, the mounting seats at the positioning tool form positioning points one by one, so that the function of positioning the mounting seats is realized. Once the foundation steel bar frames are fixedly suspended at the installation seats through bolts, the foundation steel bar frames are still positioned in the reserved pits and are accurately positioned and suspended by the positioning tool, and the subsequent pouring process effectively realizes the fixing operation of the foundation steel bar frames. To the quantity of the pilot hole of mount pad department to stable fixed basis reinforcing bar frame is for, also more than two sets of can. The assembly holes may cause the foundation reinforcing frame to be unstable in position under the action of external force such as cement impact force. Under the optimal condition, full matching, namely eight-assembly matching holes can be used, so that the foundation bolts are removed after the first cement pouring is finished, the matching holes in the foundation steel bar frame for matching the matching holes cannot be blocked by cement, and the purpose of reliable and quick fixing of the subsequent foundation base plate and the foundation steel bar frame is finally guaranteed.

Drawings

FIG. 1 is a plan view showing a state in which a foundation slab is engaged with an anchor bolt;

FIGS. 2-9 are schematic views of the working flow of the present invention;

FIG. 10 is a top view of the positioning tool in an operating state;

FIG. 11 is a schematic perspective view of a mold access device;

FIG. 12 is an enlarged view of a portion of FIG. 11;

FIG. 13 is a schematic perspective view of the structure of FIG. 12 with the door opening mechanism removed;

FIG. 14 is a schematic perspective view of a door opening bracket;

figure 15 is a perspective view of the push-pull assembly with the hook plate in the upright position;

FIG. 16 is a cross-sectional view of FIG. 15;

FIG. 17 is an isometric enlarged view of the left side view of FIG. 16;

figure 18 is a perspective view of the push-pull assembly with the hook plate in the stowed position;

FIG. 19 is a front view of FIG. 18;

fig. 20 is an isometric enlarged view of the left side view of fig. 19.

The actual correspondence between each label and the part name of the invention is as follows:

10-reinforcing steel bar net rack 20-foundation reinforcing steel bar frame

30-positioning tool 31-subframe 32-connecting frame 33-mounting seat

40 a-front bin 40 b-rear bin 41-upright post 42-joining frame 43-cornice beam

50-mould table access device

51-parking and taking vehicle 52-lifting platform

53-auxiliary roller assembly 53 a-power motor 53 b-roller

54-push-pull assembly 54 a-push-pull piston cylinder 54 b-slide rail 54 c-slide plate 54 d-rotating shaft

54 e-rotating motor 54 f-hook plate 54 g-rotary support seat 54 h-sector plate

54 i-slide rail seat 54 j-hinge seat 54 k-convex column

55-door opening mechanism

55 a-vertical upright rod 55 b-door opening support block 55 c-guide wheel 55 d-driving chain wheel

55 e-door opening motor 55 f-equidirectional screw rod 55 g-universal shaft 55 h-cross rod

56 a-pulling motor 56 b-pulling roller 56 c-pulling rope 56 d-direction-changing wheel

56 e-steering wheel

Detailed Description

For ease of understanding, the specific construction process and the manner of operation of the various components of the present invention are further described herein with reference to FIGS. 2-20:

the specific construction process of the invention is shown in fig. 2-10, and the steps are as follows:

step a: correspondingly digging foundation pits according to the positions of the front bin 40a and the rear bin 40 b;

step b: pre-burying a steel bar net rack 10 to form a foundation, and placing a foundation steel bar rack 20 in a reserved pit at the foundation;

step c: fixing the mounting bases at the positioning tool 30 on the foundation steel bar frame 20 through foundation bolts in a one-to-one correspondence manner, and then adjusting the level and elevation of the positioning tool 30 and fixing;

step d: pouring concrete for the first time;

step e: dismounting the foundation bolts and removing the positioning tool 30;

step f: fixing the installation foundation base plate to the exposed installation point of the foundation reinforcing frame 20 after the first concrete pouring by using the anchor bolts, and then installing the upright columns 41;

step g: pouring concrete for the second time;

step f: the vertical column 41 is used as a base point, the fittings are installed according to the normal curing bin installation mode, finally, a front bin 40a and a rear bin 40b opposite to the kiln opening are formed, and the mold table storing and taking device 50 is installed between the front bin 40a and the rear bin 40 b.

In the above steps, compared with the construction process of the existing maintenance warehouse, the main changes are that the adding of the positioning tool 30 and the maintenance warehouse are changed from a manual mold accessing table to a manual mold accessing table.

Regarding the positioning tool 30, taking the standard configuration of the three-dimensional curing barn, i.e. four rows and eight layers of curing barn, as an example, the front barn 40a has thirty-two groups of curing kilns with four rows and eight layers, and the rear barn 40b also has thirty-two groups of curing kilns with four rows and eight layers. The isolation between each layer of curing kilns can be ensured by a transverse supporting clapboard, and even the bottom support of the relative mould table can be simply formed by a supporting roller, and the curing kilns are completely communicated. At this time, the positioning tool 30 is shaped as shown in fig. 10, and includes two sets of subframes 31 and a connecting frame 32 for connecting the two sets of subframes 31. The sub-frame 31 is a "well" -shaped planar frame structure formed by five transverse rods and six longitudinal rods crisscrossed with each other, and each mounting seat 33 is arranged at the crossed point of the transverse rods and the longitudinal rods. The two sets of subframes 31 are respectively arranged right above the foundation where the front cabin 40a of the maintenance cabin is located and right above the foundation where the rear cabin 40b is located, and the two sets of subframes 31 are welded through the connecting frame 32 to form the integrated positioning tool 30. The bottom surface of the positioning fixture 30 constitutes the working surface, and the mounting seat 33 is convexly arranged at the bottom surface corresponding to the mounting hole of the foundation slab of the upright post 41. In actual operation, each mounting seat 33 is of a flange structure, and eight assembling holes corresponding to the number of the foundation bolts at the foundation slab shown in fig. 1 are arranged on the mounting seats 33 in a penetrating manner. The positions of the respective assembling holes are arranged in one-to-one correspondence with the corresponding assembling holes at the foundation slab of the respective columns 41 so that the respective foundation frames 20 can be fixed to the respective positioning-work mounting seats 33 by means of the anchor bolts, and the state shown in fig. 4 is established.

As shown in fig. 9 and 11 to 20, the mold stage access device 50 includes an access cart 51 having a rectangular cylindrical frame shape. The storing and taking vehicle 51 is placed on the cornice beam 43 at the opening of the front bin 40a through a platform and a guide wheel, so that the storing and taking vehicle 51 can move horizontally and transversely through the driving of a corresponding motor when needed. A horizontally disposed elevating platform 52 is disposed within the barrel cavity of the access cart 51, as shown with reference to fig. 11-12. In actual operation, as shown in fig. 11, the pulling motor 56a drives the pulling roller 56b to rotate, and then the pulling rope 56c is wound and unwound, so that the direction-changing wheels 56d and the steering wheels 56e change the direction of the pulling rope 56c, and the lifting control function of the lifting platform 52 is realized. The lifting platform 52 is in the shape of a square plate frame adapted to the shape of the barrel cavity of the access cart 51 so as to place the mold table. A set of push-pull assemblies 54, two sets of auxiliary roller assemblies 53 and a set of door opening mechanisms 55 are disposed at the front end and the rear end of the lifting platform 52, i.e., the left end and the right end shown in fig. 9. Wherein:

the push-pull assembly is shown in a specific use state by referring to fig. 11-20, and the main structure of the push-pull assembly comprises a slide rail seat 54i with a slide rail 54b, a rotating shaft 54d with a hook plate 54f and a sector plate 54h, a connecting chain transmission mechanism, a sliding plate 54c, a push-pull piston cylinder 54a and a hinge seat 54j, wherein:

the push-pull piston cylinder 54a can be a push-pull cylinder or a push-pull cylinder, and the push-pull cylinder is preferably used on site in consideration of the weight of the die table and prefabricated parts on the die table. The cylinder wall of the push-pull piston cylinder 54a is horizontally hinged to the hinge base 54j, and the hinge base 54j and the slide rail base 54i are fixed to the frame of the lifting platform 52 as shown in fig. 11-13. The slide rail seat 54i has a rectangular groove shape, and the specific shape can be seen in fig. 15 and 17. A slide rail 54b is arranged in the groove cavity of the slide rail seat 54i along the groove length direction of the slide rail seat 54i, and a slide plate 54c is matched on the slide rail 54b in a guiding way. The slide 54c is parallel to the direction of movement of the slide 54b to be withdrawn from the die table to effect a material removal operation on the die table when the slide 54c is retracted.

The upper plate surface of the sliding plate 54c forms a mounting area of the rotating shaft 54 d; the purpose of simply supported beam-like swivel mounting of the spindle 54d is achieved by two sets of swivel supports 54g disposed at the two plate ends of the slide plate 54 c. And the lower plate surface of the slide plate 54c constitutes a mounting area of the rotary motor 54 e; the fixing function of the rotating electric machine 54e can be realized by the fixing base. The sliding plate 54c is provided with a passing hole through the plate body, the shaft body of the rotating shaft 54d is provided with a gear coaxially, the output shaft of the rotating motor 54e is provided with a chain wheel coaxially, and the chain wheel and the gear form the connecting chain transmission mechanism through a connecting chain.

In addition to the above configuration, the trailing end of the slide plate 54c is fixedly connected to the rod end of the push-pull piston cylinder 54a by a positioning pin or the like. As shown in fig. 15 to 20, a hook plate 54f in a square plate shape extending radially outward is provided at the front shaft end of the rotating shaft 54d, and a sector plate 54h at an angle of 90 ° as a stopper is disposed at the rear shaft end of the rotating shaft 54d, so that the purpose of the swinging motion of the hook plate 54f within a range of 90 ° is achieved. The sector plate 54h defines its swing position by a boss 54k, and the boss 54k can be realized by a screw with a nut shown in fig. 15, 1-18 and 20, which is screwed to the slide plate 54c, and the top end surface of the nut is the mating surface of the boss 54k opposite to the sector edge of the sector plate 54 h.

As for the auxiliary roller assemblies 53, the shape thereof is shown in fig. 11 and 13, each of the auxiliary roller assemblies 53 includes a set of power motors 53a and a set of rollers 53b coaxially fitted at the output shafts of the power motors 53 a. When the push-pull assembly 54 pushes the mold in place or pulls the mold in place, part of the bottom of the mold table is placed on the roller 53b, and then the mold table is moved to one direction of the lifting platform 52 or the curing kiln by the rotation of the power motor 53 a.

The specific construction of the door opening mechanism is shown in fig. 11-12 and includes a gantry mounted at the front and rear ends of the lift platform 52. The gantry is composed of two sets of vertically disposed vertical uprights 55a and a set of cross bars 55h erected at the top ends of the vertical uprights 55 a. In the structure shown in fig. 12, it can be seen that the door opening motor 55e is disposed on the cross rod 55h, and the two sets of screws 55f in the same direction on the cross rod 55h can be driven to rotate in the same direction by the action of the door opening motor 55e, so as to drive the driving sprocket 55d in the vertical upright rod 55a to move. The driving sprocket 55d drives the driven sprocket to move through the driving chain, and drives the door opening support block 55b fixedly connected to the driving chain to perform a vertical guiding movement relative to the lead of the notch of the vertical upright rod 55 a. The door opening support block 55b is matched with the through hole at the groove wall of the vertical upright rod 55a through the guide wheel 55c, so that the lifting action of the door opening support block 55b can be reliably ensured.

In order to further understand the present invention, the specific operation flow of the constructed curing barn of the present invention is described below with reference to fig. 9 and fig. 11-20:

in the normal use process of the curing barn, the lifting doors at the kiln mouths of the sixty-four curing kilns of the front barn 40a and the rear barn 40b of the curing barn are all in a descending closed state. At this time, the mold table is naturally cured in the curing kiln of the curing barn, and the whole curing barn is in the state shown in fig. 9.

When the mould table needs to be taken out from the front bin 40a or the rear bin 40b of the curing bin: the pulling motor 56a is started to lift the lifting platform 52 shown in fig. 11-13 to the height of the layer corresponding to the curing kiln of the curing barn to be stored. Then, the lifting platform 52 and even the access vehicle 51 are driven by the guide motor to move transversely until the door opening support block 55b is accurately positioned under the spigot lug of the lifting door at the kiln mouth of the curing kiln to be molded. Of course, the alignment of the spigot lugs can also be achieved by the opening bracket 55b itself by the drive sprocket or by tangential forward and backward motion along the driven sprocket. Then, the door opening motor 55e is started, the equidirectional screw rod 55f rotates to drive the driving chain wheel 55d and the driving chain to move, the door opening support block 55b moves upwards and drives the spigot lug to move upwards, and therefore the lifting door is lifted and moved upwards. Then, the push-pull unit 54 is activated, the push-pull piston cylinder 54a is activated, the slide plate 54c is pushed forward to the hooking position, and the push-pull piston cylinder 54a is stopped. Then, the rotating motor 54e is started to drive the hook plate 54f to rotate 90 degrees to stand, and the hook plate 54f is in a state shown in fig. 15-17, so that the die table is hooked from bottom to top. And then, the push-pull piston cylinder 54a is started to pull the sampling head, and the hook plate 54f at the sampling head and the die table form hooking matching, so that the die table can be pulled out of the curing kiln. After the sampling head is reset to the state shown in fig. 18-20, the mold stand is now just resting on the rollers 53b of the auxiliary roller assemblies 53. And starting the power motor 53a, and driving the roller 53b to rotate so as to drive the die table to completely slide into the lifting platform 52. And finally, the door opening motor 55e is started, the door opening support block 55b is driven reversely to move downwards to reset, and at the moment, the lifting door at the kiln opening of the current curing kiln slides downwards to reset under the action of gravity.

When the mould table needs to be stored in the front bin 40a or the rear bin 40b of the curing bin: the mold table is first placed at the lift platform 52 in advance. And then, starting the traction motor 56a, and lifting the lifting platform 52 to a high position corresponding to the curing kiln of the curing bin to be stored. Then, the lifting platform 52 and even the access vehicle 51 are driven by the guide motor to move transversely until the door opening support block 55b is accurately positioned under the spigot lug of the lifting door at the kiln mouth of the curing kiln to be molded. Of course, the alignment of the spigot lugs can also be achieved by the opening bracket 55b itself by the drive sprocket or by tangential forward and backward motion along the driven sprocket. Then, the door opening motor 55e is started, the equidirectional screw rod 55f rotates to drive the driving chain wheel 55d and the driving chain to move, the door opening support block 55b moves upwards and drives the spigot lug to move upwards, and therefore the lifting door is lifted and moved upwards. Then, the power motor 53a rotates to drive the roller 53b to move, so that the mold table is driven to horizontally move into the curing kiln. Then, the push-pull assembly 54 is started, and the rotating motor 54e rotates at this time, and transmits the force to the gear at the rotating shaft 54d through the connecting chain. The hook plate 54f is rotated by 90 ° to stand along with the rotation of the rotating shaft 54d, and the hook plate 54f is shown in fig. 15-17. Then, the push-pull piston cylinder 54a is started, the piston rod pushes the sliding plate 54c to move forward along the sliding rail 54b, and at this time, the hook plate 54f erected on the sliding plate 54c can be used as an extension arm of the lifting platform 52, so as to continuously push the mold platform to completely enter the curing kiln. Then, the rotating motor 54e rotates reversely to drive the rotating shaft 54d to rotate the hook plate 54f reversely by 90 ° and retract to the lodging position, at this time, the state of the hook plate 54f is as shown in fig. 18-20, and finally, the push-pull piston cylinder 54a is started to pull the sliding plate 54c back along the sliding rail 54 b. In actual operation, the fixed point positioning function of each mechanical action of the invention can be realized by combining the existing sensing component. If the grating sensor can be arranged at the kiln mouth of each curing kiln, if the grating is shielded when the component is stored for the last time, the grating is automatically stored to a higher layer of the front bin 40a or the rear bin 40b when the component is stored for the next time, so that the aim of automatic production of the invention is further perfected.

Claims (9)

1. A compound maintenance bin construction method for a PC component assembly line is characterized by comprising the following steps:

s1), digging two groups of foundation pits corresponding to the positions of the front bin (40a) and the rear bin (40b) of the curing bin;

s2), embedding a reinforcing steel bar net rack (10) in the foundation pit to form a foundation, and placing a foundation reinforcing steel bar frame (20) which is bundled in advance at a reserved pit of the foundation;

s3), buckling the working surface of the horizontally arranged positioning tool (30) on the foundation downwards, enabling the mounting seats (33) which are arranged on the working surface of the positioning tool (30) in a downward protruding mode to correspond to the foundation steel bar frames (20) one by one, and fixedly connecting the corresponding mounting seats and the foundation steel bar frames (20) through screw threads through foundation bolts; after the positioning tool (30) and each foundation steel bar frame (20) are fixed, adjusting the level and elevation of the positioning tool (30), and fixing the positioning tool (30) on the foundation;

the appearance of the positioning tool (30) is in a plane square frame shape, the bottom surface of the positioning tool (30) forms the working surface, mounting seats (33) are convexly arranged at the bottom surface corresponding to the mounting holes of the base bottom plate of the upright post (41), each mounting seat (33) is in a flange structure, and assembling holes are arranged on the mounting seats (33) in a penetrating mode; the positions of the assembly holes are in one-to-one correspondence with the corresponding mounting holes at the foundation slab of each upright post (41);

s4), performing first concrete pouring to fix the foundation reinforcing steel bar frame (20);

s5), after the concrete is solidified, removing each foundation bolt, moving away the positioning tool (30), and then all the foundation steel bar frames (20) are positioned at the designated positions;

s6), installing the foundation slab and the upright post (41), and performing secondary concrete pouring on the root of the upright post (41) to fix the foundation slab;

s7), respectively installing a connecting frame (42) at the upright columns (41) where the front bin (40a) and the rear bin (40b) are located, so as to form the front bin (40a) and the rear bin (40b) of the curing kiln with multiple layers of curing kilns arranged in parallel, wherein the kilneye at the front bin (40a) and the kilneye at the rear bin (40b) are arranged oppositely;

s8), installing a mould table access device (50) in the area between the front bin (40a) and the rear bin (40 b);

the die table storing and taking device (50) comprises a square cylindrical frame-shaped storing and taking vehicle (51) which can horizontally reciprocate along the direction vertical to the die table material storage direction and is horizontally arranged along the axis, and two cylinder openings of the storing and taking vehicle (51) respectively point to a front cabin opening (40a) and a rear cabin opening (40b) of the curing cabin; a lifting platform (52) capable of reciprocating in the vertical direction is arranged in the access vehicle (51), and the table surface of the lifting platform (52) forms a placing surface for placing the mold table; the two end parts of the lifting platform (52) positioned at the two openings of the access vehicle (51) are named as the front end and the rear end of the access vehicle, and an auxiliary roller assembly (53) for assisting in guiding the die table or assisting in sending the die table and a push-pull assembly (54) for hooking the die table into and sending the die table out of the lifting platform (52) are uniformly arranged at the front end and the rear end of the lifting platform (52); the action direction of the push-pull assembly (54) is parallel to the material storage direction of the die table, and the auxiliary roller assemblies (53) are respectively arranged at the two sides of the axis of the push-pull assembly (54) in a way that two groups are a pair; the auxiliary roller assembly (53) comprises a roller (53b) with the axis vertical to the material storage direction of the die table and the wheel shaft horizontally arranged and a power motor (53a) for driving the roller (53b) to do rotary motion; the push-pull assembly (54) comprises a push-pull piston cylinder (54a) with the stroke direction parallel to the material storage direction of the die table, the cylinder wall of the push-pull piston cylinder (54a) is hinged and fixed on the table top of the lifting platform (52), and the end of a piston rod of the push-pull piston cylinder (54a) is fixedly connected with a material taking head; the material taking head comprises a sliding rail (54b) and a sliding plate (54c) which is fixedly connected to the frame of the lifting platform (52) and forms guiding fit with the sliding rail (54b), and the advancing direction of the sliding plate (54c) relative to the sliding rail (54b) is parallel to the material storing direction of the die table; the tail end of the sliding plate (54c) is fixedly connected with the rod end of the piston rod, a rotating shaft (54d) with the axis parallel to the material storage direction of the die table is matched on the sliding plate (54c) in a rotating mode, and the rotating shaft (54d) is driven by a rotating motor (54e) to rotate; a hook plate (54f) used for hooking the formwork table from the curing kiln is arranged at one shaft end of the rotating shaft (54d) relatively far away from the push-pull piston cylinder (54a), and the hook plate (54f) extends outwards along the radial direction of the rotating shaft (54 d);

the mould platform storing and taking device (50) further comprises a door opening mechanism (55) used for lifting a lifting door at the kiln opening of the corresponding curing kiln, the door opening mechanism (55) comprises a portal frame erected at the front end and the rear end of the lifting platform (52), and the auxiliary roller assembly (53) and the push-pull assembly (54) are both positioned in the area between two vertical upright rods (55a) of the portal frame; a group of door opening support blocks (55b) capable of lifting along the length direction of the vertical upright rods (55a) are uniformly arranged on the two vertical upright rods (55a) of the portal frame; the lifting doors at the kiln mouths of the curing kilns of the front bin (40a) and the rear bin (40b) comprise door bodies capable of performing lifting action along the vertical direction, the door bodies are guided and matched with the kiln mouths of the curing kilns through a double-row vertical track passing through the kiln mouths of all layers of curing kilns, and the door bodies at the adjacent layers of curing kilns are abutted against each other so that the door bodies at the lower layer can push the door bodies at the upper layer to perform synchronous lifting action; the door body is provided with a spigot lug corresponding to the position of the door opening support block (55b), so that the door opening support block (55b) can be horizontally displaced to the lower part of the spigot lug and then can lift the lifting door from bottom to top by means of the lifting action of the door opening support block (55b) and open the kiln mouth of the current curing kiln.

2. The compound curing barn construction method for the PC component assembly line according to claim 1, wherein the compound curing barn construction method comprises the following steps: the vertical upright rod (55a) is in a square groove shape vertically arranged in the groove length direction; the notch of the vertical upright rod (55a) points to the direction of the to-be-taken mold table; the shape of the door opening support block (55b) is in an L-shaped block shape; through holes are arranged at two groove walls of the vertical upright rod (55a) in a penetrating manner, and the through holes extend downwards along the vertical direction to form a waist-shaped hole structure; guide wheels (55c) are fixedly connected to two side parts of the door opening support block (55b) which are positioned in the groove cavity of the vertical rod, a rolling type guide rail is formed between each guide wheel and the wall of the through hole for guiding and matching, and the horizontal section of the door opening support block horizontally extends out of the vertical rod through the groove opening of the vertical rod so as to realize the support function of the spigot lug; a group of chain wheels with wheel shafts horizontally arranged and the axis of the wheel shafts vertical to the material storage direction of the die table are respectively arranged at the top end and the bottom end of the groove cavity of the vertical upright rod (55a), a driving chain wheel (55d) and a driven chain wheel are respectively formed by the two groups of chain wheels at each group of vertical upright rod (55a), the two groups of chain wheels form chain transmission matching through a driving chain, and a door opening supporting block (55b) is fixedly connected with the driving chain; the door opening mechanism (55) also comprises a door opening motor (55e) for driving the chain wheel to rotate.

3. The compound curing barn construction method for the PC component assembly line according to claim 2, wherein the compound curing barn construction method comprises the following steps: the door opening motor (55e) is arranged at the middle section of a cross rod (55h) of the portal frame, the door opening motor (55e) drives two groups of equidirectional screw rods (55f) which are coaxial with each other and extend oppositely to rotate, and the equidirectional screw rods (55f) are matched with driving chain wheels (55d) which are positioned at the top ends of the groove cavities and arranged at the corresponding vertical upright rods (55a) through universal shafts (55 g).

4. The compound curing barn construction method for the PC component assembly line according to claim 1, 2 or 3, wherein the compound curing barn construction method comprises the following steps: the lifting platform (52) is in a square plate frame shape arranged horizontally; arranging the auxiliary roller assemblies (53) at the four corner ends of a lifting platform (52); the top of the access vehicle (51) is provided with a traction motor (56a), the traction motor (56a) is used for driving four groups of traction rollers (56b), one end of each of the four groups of pull ropes (56c) is respectively wound at one group of traction rollers (56b), the other end of each of the four groups of pull ropes (56c) respectively extends vertically downwards after being turned by a corresponding turning wheel (56d) at the top end of the access vehicle (51) and is matched with a steering wheel (56e) arranged at each corner end of the lifting platform (52), so that after each pull rope (56c) extends vertically downwards from the turning wheel (56d), the pull rope can be turned by the corresponding steering wheel (56e) and then fixed at the top frame body of the access vehicle (51) vertically upwards, and finally the lifting platform (52) is ensured to be vertically lifted and lowered with a horizontal plate surface.

5. The compound curing barn construction method for the PC component assembly line according to claim 1, 2 or 3, wherein the compound curing barn construction method comprises the following steps: rotary supporting seats (54g) are arranged at two plate ends of the upper plate surface of the sliding plate (54c) so that the rotating shaft (54d) is matched on the sliding plate (54c) in a rotary mode; one end of a hook plate (54f) arranged on the rotating shaft (54d) is taken as the front shaft end of the rotating shaft (54d), a fan-shaped plate (54h) used for limiting the rotation amplitude of the rotating shaft (54d) is fixedly connected to the rear shaft end of the rotating shaft (54d), the plate surface of the fan-shaped plate (54h) is vertical to the axis of the rotating shaft (54d), and the included angle between two fan-shaped edges of the fan-shaped plate (54h) is 90 degrees; the upper plate surface of the sliding plate (54c) is also provided with a convex column (54k) used for limiting the swing amplitude of two fan-shaped edges of the fan-shaped plate (54 h).

6. The compound curing barn construction method for the PC component assembly line according to claim 5, wherein the compound curing barn construction method comprises the following steps: the push-pull assembly (54) further comprises a slide rail seat (54i) for placing the slide rail (54b), and the slide rail seat (54i) is fixedly connected to the frame of the lifting platform (52); the slide rail seat (54i) is in a shape of a right-angle groove, and a rectangular cavity channel-shaped accommodating cavity is formed by the slide plate (54c) and the groove wall and the groove bottom of the slide rail seat (54i) in a surrounding way; a rotating motor (54e) is fixedly connected in the accommodating cavity, and chain wheels at the output shaft of the rotating motor (54e) and gears coaxially arranged at the rotating shaft (54d) form chain transmission fit; the plate body of the sliding plate (54c) is provided with an avoidance hole for the connecting chain to pass through in advance.

7. The compound curing barn construction method for the PC component assembly line according to claim 6, wherein the compound curing barn construction method comprises the following steps: a hinged seat (54j) is arranged on the lifting platform (52), the cylinder wall of the push-pull piston cylinder (54a) is hinged and matched at the hinged seat (54j), and the axis of the hinged shaft of the push-pull piston cylinder are horizontally arranged.

8. The compound curing barn construction method for the PC component assembly line according to claim 1, 2 or 3, wherein the compound curing barn construction method comprises the following steps: the positioning tool (30) comprises two groups of subframes (31) and a connecting frame (32) for connecting the two groups of subframes; the sub-frame (31) is a 'well' -shaped planar frame structure formed by five transverse rods and six longitudinal rods which are crisscrossed with each other, and each mounting seat (33) is arranged at the crossed point of the transverse rods and the longitudinal rods; two sets of subframes (31) are respectively arranged right above the foundation where the front cabin (40a) of the curing cabin is located and right above the foundation where the rear cabin (40b) is located, and the two sets of subframes (31) are welded and fixed through a connecting frame (32) to form an integrated positioning tool (30).

9. The compound curing barn construction method for the PC component assembly line according to claim 1, 2 or 3, wherein the compound curing barn construction method comprises the following steps: cornice beams (43) are fixedly connected to the tops of bin openings of the front bin (40a) and the rear bin (40b), the cornice beams (43) are horizontally arranged, the length direction of the cornice beams is perpendicular to the material storage direction of the die table, a frame body on the top of the storage vehicle (51) extends to the cornice beams where the front bin (40a) and the rear bin (40b) are located respectively to form lap openings, and the lap openings are in rolling fit with the cornice beams (43) through guide wheels and form horizontal guide rail guide fit with the cornice beams; the guide wheel is driven by a guide motor to drive the access vehicle (51) to horizontally reciprocate along the vertical die table material storage direction.

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