CN115489002B - Split type superimposed sheet mould - Google Patents

Abstract

The invention relates to the technical field of laminated plate molds, in particular to a split laminated plate mold which comprises a mold table, end parts, a general part, a special part, a storage structure, a sealing structure, a butt joint structure, a resetting structure, a fixing magnetic box, a through hole and a film; so that the long flange or the short flange is not distinguished, and each part can be used in two flanges; the mold is not limited to be used for a certain type of laminated plate mold, and can be taken by any laminated plate mold as long as the size is proper; the repeated utilization rate of the laminated plate die is greatly improved, the flanges of the laminated plate die are formed by a plurality of sections, after long-term use and damage, the laminated plate die is not required to be scrapped, only the damaged parts are replaced, the use cost is further reduced, the design that each flange is spliced by the plurality of parts is adopted, the deformation and denaturation of integrally manufactured sectional materials are avoided, the correction is difficult, and the die quality is improved.

Description

Split type superimposed sheet mould

Technical Field

The invention relates to the technical field of laminated plate molds, in particular to a split laminated plate mold.

Background

The building components and accessories are manufactured in factories, transported to building construction sites and assembled and installed on site in a reliable connection mode, so that the building form is called an assembled building; wherein the prefabricated laminated slab is one of the important members; the laminated plate mould has various forms, and the production mode adopted at present is to build the laminated plate mould meeting the requirements on the flat special mould table and fix the laminated plate mould by using a special magnetic box.

However, (1) the superimposed sheet mold separates long and short flanges (which may also be referred to as lateral and longitudinal flanges) corresponding to the length-width direction of the superimposed sheet member; the long flange and the short flange need different structural forms to be distinguished, and cannot be mixed; (2) the length of the long flange or the short flange is customized according to the length and the width of the component; (3) the steel bar outlet notch used for arranging the steel bars on the long and short flanges in the same way needs to be customized according to the components; (4) in short, the two superimposed sheet molds designed based on the two items (2) and (3) are special molds for superimposed sheets of a certain model (size), the repeated utilization rate is low, and the cost cannot be further controlled; if the length of the superimposed sheet with a larger model is too long, the profile body is easy to deform due to the existence of the rib notch of the corresponding die, and the profile body is inconvenient to straighten and correct in later use, so that the production quality is affected;

the upper part of the rib-out notch reserved on the mould is not sealed, slurry leakage can be caused in the concrete pouring process, material waste is caused, and the pouring quality of the part is affected;

for moisturizing and heat preservation after pouring, the film needs to be covered after pouring, and most of the films are directly placed and then pressed and fixed by the material blocks, so that the operation flexibility is poor, and the film is not beneficial to winding and repeated use of the later film.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a split type laminated plate die.

The technical scheme adopted for solving the technical problems is as follows: the split laminated slab die comprises a die table, four groups of end parts are arranged at four corners of the die table, each group of end parts are arranged, and two end parts of the same group are vertically arranged to form a right angle; a general part is arranged between two end parts positioned on the same side of the rectangle, a special part is arranged on the die table, and the end parts, the general part and the special part are all fixed on the die table through a fixed magnetic box; through holes for arranging reinforcing steel bars are formed in the end part, the general part and the special part; sealing structures for sealing the through holes are arranged on the end part, the universal part and the special part; positioning the adjacent end parts, the adjacent universal parts, the adjacent end parts and the universal parts by adopting a butt joint structure, wherein a reset structure is arranged in the butt joint structure; the die table is provided with a storage structure for the rolled film, and the storage structure is provided with a fixing structure.

Specifically, seal structure includes fixed frame, all be equipped with fixed frame on end part, general spare and the special spare, it is equipped with the slider to slide on the fixed frame, the top of slider is equipped with the connecting rod, be equipped with a plurality of cock stems that are used for sealing the through-hole on the connecting rod.

Specifically, be equipped with sliding connection's clamp plate on the fixed frame, the both ends of clamp plate are fixed with the actuating lever, be equipped with the transmission groove that the slope set up on the actuating lever, it is equipped with the gyro wheel to roll on the transmission groove, rotate between gyro wheel and the fixture block and be connected, sliding connection between fixture block and the fixed frame, the slip direction of fixture block is perpendicular with the slip direction of actuating lever, the fixture block inclines towards the one end of slider, the one end that the fixture block deviates from the slider is equipped with the rectangle recess.

Specifically, the bottom of clamp plate is equipped with the guide bar with fixed frame sliding connection, be equipped with first spring between clamp plate and the fixed frame.

Specifically, the butt joint structure comprises a sliding sleeve, the end parts of the end parts, the universal parts and the special parts are all fixed with the sliding sleeve, sliding rods are arranged in the sliding sleeve in a sliding manner, two adjacent sliding rods are fixed on the same bottom plate, and the bottom plate is in interference with the die table.

Specifically, the reset structure includes the reset lever, the slip is equipped with the reset lever in the slide bar, the reset lever runs through in the third spring, the one end of third spring is fixed in reset lever, the other end is contradicted in the bottom plate, the slip is equipped with the gag lever post on the bottom plate, the right-hand member of gag lever post is triangle-shaped and with the spacing groove block on the reset lever, the left end slope of gag lever post sets up, sliding connection between gag lever post and the footboard, sliding connection between footboard and the bottom plate, be equipped with the second spring between footboard and the bottom plate.

Specifically, the storage structure includes the storage box, be fixed with the storage box on the mould bench, it is equipped with the pivot to rotate on the storage box, be equipped with the spring barrel on the storage box, the pivot is reset through the spring barrel, be equipped with the roll-up wheel that is used for the roll-up film in the pivot.

Specifically, be equipped with the apron of swivelling joint on the storage box, be equipped with the base on the storage box, be fixed with the extension spring between base and the apron.

Specifically, the cover plate is provided with a guide wheel for guiding the film.

Specifically, fixed knot constructs including fixed box, the film is fixed in fixed box, be fixed with magnet on the fixed box, magnet adsorbs with the iron plate on the storage box, be fixed with the handle on the fixed box, the draw-in lever and the apron block on the handle.

The beneficial effects of the invention are as follows:

(1) The invention relates to a split laminated slab die, four groups of end parts are arranged at four corners of a die table, each group of end parts are arranged, and two end parts of the same group are vertically arranged to form a right angle; a general part is arranged between two end parts positioned on the same side of the rectangle, a special part is arranged on the die table, and the end parts, the general part and the special part are all fixed on the die table through a fixed magnetic box; through holes for arranging reinforcing steel bars are formed in the end part, the general part and the special part; so that the long flange or the short flange is not distinguished, and each part can be used in two flanges; the mold is not limited to be used for a certain type of laminated plate mold, and can be taken by any laminated plate mold as long as the size is proper; the repeated utilization rate of the laminated plate die is greatly improved, the flanges of the laminated plate die are formed by a plurality of sections, after long-term use and damage, the laminated plate die is not required to be scrapped, only the damaged parts are replaced, the use cost is further reduced, the design that each flange is spliced by the plurality of parts is adopted, the deformation and denaturation of integrally manufactured sectional materials are avoided, the correction is difficult, and the die quality is improved.

(2) According to the split type superimposed sheet mould, the sealing structures for sealing the through holes are arranged on the end part, the general part and the special part, so that the through holes are conveniently sealed, slurry leakage in the pouring process is prevented, and the pouring quality is improved.

(3) According to the split type laminated plate mold, the adjacent end parts, the adjacent general parts, the adjacent end parts and the general parts are positioned by adopting the butt joint structure, and the reset structure is arranged in the butt joint structure, so that the assembly is more convenient, the assembly is more standard, and the assembly quality is improved.

(4) According to the split laminated plate mold, the storage structure for rolling up the film is arranged on the mold table, and the fixing structure is arranged on the storage structure, so that the film is more stable and convenient to use.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the overall structure of a preferred embodiment of a split laminated slab mold according to the present invention;

FIG. 2 is an enlarged schematic view of the portion A shown in FIG. 1;

FIG. 3 is an enlarged schematic view of the B-section structure shown in FIG. 1;

FIG. 4 is an enlarged schematic view of the structure of the portion C shown in FIG. 2;

FIG. 5 is a schematic structural view of a seal structure of the present invention;

FIG. 6 is a schematic diagram of a connection structure between a driving rod and a clamping block according to the present invention;

FIG. 7 is a schematic diagram of a connection structure of a docking structure and a reset structure according to the present invention;

FIG. 8 is an enlarged schematic view of the structure of the portion D shown in FIG. 7;

FIG. 9 is a schematic diagram of a memory structure according to the present invention;

fig. 10 is an enlarged schematic view of the E-section structure shown in fig. 9.

In the figure: 1. a die table; 2. an end piece; 3. a generic part; 4. a special piece; 5. a storage structure; 501. a cover plate; 502. a storage box; 503. a barrel; 504. a guide wheel; 505. a rotating shaft; 506. a winding wheel; 507. a tension spring; 508. a base; 509. an iron plate; 6. a sealing structure; 601. a plug rod; 602. a connecting rod; 603. a fixed frame; 604. a slide block; 605. a pressing plate; 606. a driving rod; 607. a transmission groove; 608. a clamping block; 609. a roller; 610. a guide rod; 611. a first spring; 7. a butt joint structure; 701. a sliding sleeve; 702. a slide bar; 703. a bottom plate; 8. a reset structure; 801. a pedal; 802. a limit rod; 803. a second spring; 804. a reset lever; 805. a third spring; 806. a limit groove; 9. a fixed structure; 901. a handle; 902. a clamping rod; 903. a fixed box; 904. a magnet; 10. fixing the magnetic box; 11. a through hole; 12. a film.

Detailed Description

The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

As shown in fig. 1 to 10, the split laminated slab mold comprises a mold table 1, four groups of end parts 2 are arranged at four corners of the mold table 1, each group of end parts 2 are 2, and two end parts 2 of the same group are vertically arranged to form a right angle; a universal piece 3 is arranged between two end pieces 2 positioned on the same side of the rectangle, a special piece 4 is arranged on the die table 1, and the end pieces 2, the universal piece 3 and the special piece 4 are all fixed on the die table 1 through a fixed magnetic box 10; the end part 2, the universal part 3 and the special part 4 are respectively provided with a through hole 11 for arranging reinforcing steel bars; the end part 2, the universal part 3 and the special part 4 are provided with sealing structures 6 for sealing the through holes 11; the adjacent end parts 2, the adjacent universal parts 3, the adjacent end parts 2 and the universal parts 3 are positioned by adopting a butt joint structure 7, and a reset structure 8 is arranged in the butt joint structure 7; a storage structure 5 for winding the film 12 is arranged on the die table 1, and a fixing structure 9 is arranged on the storage structure 5;

the butt joint structure 7 comprises a sliding sleeve 701, wherein the sliding sleeve 701 is fixed at the end parts of the end part 2, the universal part 3 and the special part 4, a sliding rod 702 is arranged in the sliding sleeve 701 in a sliding manner, two adjacent sliding rods 702 are fixed on the same bottom plate 703, and the bottom plate 703 is in interference with the die table 1;

the reset structure 8 comprises a reset rod 804, wherein the reset rod 804 is slidably arranged in the slide rod 702, the reset rod 804 penetrates through a third spring 805, one end of the third spring 805 is fixed on the reset rod 804, the other end of the third spring 805 is abutted against the bottom plate 703, a limit rod 802 is slidably arranged on the bottom plate 703, the right end of the limit rod 802 is triangular and is clamped with a limit groove 806 on the reset rod 804, the left end of the limit rod 802 is obliquely arranged, the limit rod 802 is slidably connected with the pedal 801, the pedal 801 is slidably connected with the bottom plate 703, and a second spring 803 is arranged between the pedal 801 and the bottom plate 703;

firstly, slide sleeves 701 on two end parts 2 are respectively clamped into slide bars 702 on the same bottom plate 703, right angles are formed by abutting the two end parts 2, then the two end parts 2 are continuously pressed, the slide sleeves 701 abut against reset rods 804, the reset rods 804 slide downwards, third springs 805 are compressed, because the right ends of the limit rods 802 are triangular, when the reset rods 804 slide downwards, the limit rods 802 do not block the reset rods 804 to work, the left ends of the limit rods 802 incline to drive pedals 801 to slide downwards, the pedals 801 abut against second springs 803, the second springs 803 are compressed, after the limit rods 802 correspond to limit grooves 806, the second springs 803 extend to drive the pedals 801 to reset, the pedals 801 drive the limit rods 802 to slide rightwards, the limit rods 802 are clamped with the limit grooves 806, the reset rods 804 are limited, then the end parts 2, universal parts 3 and special parts 4 are mounted one by adopting fixed magnetic boxes 701 (the end parts 2 and the universal parts 3 are all positioned through the slide bars 701 in the mounting process), the position offset in the mounting process is effectively prevented, and the mounting efficiency and the quality of the universal parts 3 are improved;

when the end part 2 and the universal part 3 are disassembled, the pedal 801 is stepped on by feet, the pedal 801 is pressed against the second spring 803 to compress, the pedal 801 drives the limiting rod 802 to slide leftwards, the limiting rod 802 is not clamped with the limiting groove 806, the third spring 805 drives the reset rod 804 to slide upwards, the reset rod 804 is convenient to press against the sliding sleeve 701, the sliding sleeve 701 is separated from the sliding rod 702, and the sliding sleeve 701 and the sliding rod 702 are convenient to disassemble.

Specifically, the sealing structure 6 includes a fixing frame 603, the end component 2, the general component 3 and the special component 4 are all provided with the fixing frame 603, the fixing frame 603 is provided with a sliding block 604 in a sliding manner, the top end of the sliding block 604 is provided with a connecting rod 602, and the connecting rod 602 is provided with a plurality of plug rods 601 for sealing the through holes 11; the fixing frame 603 is provided with a pressing plate 605 in sliding connection, two ends of the pressing plate 605 are fixed with driving rods 606, the driving rods 606 are provided with transmission grooves 607 which are obliquely arranged, the transmission grooves 607 are provided with rollers 609 in a rolling manner, the rollers 609 are rotationally connected with clamping blocks 608, the clamping blocks 608 are in sliding connection with the fixing frame 603, the sliding direction of the clamping blocks 608 is perpendicular to the sliding direction of the driving rods 606, the clamping blocks 608 are inclined towards one end of the sliding blocks 604, and one end of each clamping block 608, which is away from the sliding blocks 604, is provided with a rectangular groove; the bottom end of the pressing plate 605 is provided with a guide rod 610 which is in sliding connection with the fixed frame 603, and a first spring 611 is arranged between the pressing plate 605 and the fixed frame 603;

after binding the reinforcing steel bars, the end parts of the reinforcing steel bars are exposed out of the through holes 11, then the sliding block 604 at the bottom end of the connecting rod 602 slides with the fixing frame 603, so that the clamping block 608 is clamped with the sliding block 604 (as the end of the clamping block 608 facing the sliding block 604 is an inclined plane, the sliding block 604 cannot be blocked when the sliding block 604 slides downwards), the sliding block 604 is limited by the clamping block 608, the top end of the through holes 11 is sealed by the plug rod 601, slurry leakage in the pouring process is prevented, pouring quality is improved, after pouring is finished, a practical crow bar is inserted between the pressing plate 605 and the sliding block 604, the crow bar is stirred, in an initial state, as the sliding block 604 is limited by the clamping block 608, the pressing plate 605 slides downwards, the pressing plate 605 drives the guide rod 610 to slide downwards, the first spring 611 is compressed, the pressing plate 605 drives the driving rod 606 to slide downwards, the driving groove 607 on the driving rod 606 drives the roller 609 to slide in the direction of the sliding block 604, the clamping block 608 does not limit the sliding block 604, and after the pressing plate 605 is in conflict with the fixing frame 603, the sliding block 604 continues to slide upwards, the plug rod 601 is separated from the through holes 11, and demolding is more convenient.

Specifically, the storage structure 5 includes a storage box 502, the storage box 502 is fixed on the die table 1, a rotating shaft 505 is rotatably arranged on the storage box 502, a spring box 503 is arranged on the storage box 502, the rotating shaft 505 is reset through the spring box 503, and a winding wheel 506 for winding the film 12 is arranged on the rotating shaft 505; a cover plate 501 in rotary connection is arranged on the storage box 502, a base 508 is arranged on the storage box 502, and a tension spring 507 is fixed between the base 508 and the cover plate 501; the cover plate 501 is provided with a guide wheel 504 for guiding the film 12;

the fixing structure 9 comprises a fixing box 903, the film 12 is fixed on the fixing box 903, a magnet 904 is fixed on the fixing box 903, the magnet 904 is adsorbed to an iron plate 509 on the storage box 502, a handle 901 is fixed on the fixing box 903, and a clamping rod 902 on the handle 901 is clamped with the cover plate 501; when pouring is finished, when the film 12 is needed, the handle 901 is held by hand, the handle 901 is pulled, the fixing box 903 is far away from the cover plate 501, the clamping rod 902 is not clamped with the cover plate 501, the limit of the cover plate 501 is released, then the film 12 is pulled, the film 12 drives the rolling wheel 506 to rotate, the rotating shaft 505 is enabled to rotate, after the film 12 covers the laminated plate, the magnet 904 is adsorbed to the mold table 1, further the film 12 is enabled to be more convenient to cover, the spring in the spring box 503 deforms in the rotating shaft 505, the guide wheel 504 rotates in the moving process of the film 12, friction force is reduced, the film 12 is enabled to be more flexible to use, after the technology is used, the magnet 904 and the mold table 1 do not adsorb, the spring box 503 drives the rotating shaft 505 to rotate, the rolling wheel 506 rolls up the film 12 again, and when the inside of the storage box 502 is overhauled and maintained, the cover plate 501 is pulled, and the tension spring 507 rotates.

When the invention is used, firstly, the sliding sleeves 701 on the two end parts 2 are respectively clamped into the sliding rods 702 on the same bottom plate 703, so that the two end parts 2 are abutted to form a right angle, then the two end parts 2 are continuously pressed, the sliding sleeves 701 are abutted to the reset rod 804, the reset rod 804 slides downwards, the third spring 805 is compressed, because the right end of the limit rod 802 is triangular, when the reset rod 804 slides downwards, the limit rod 802 does not block the reset rod 804 to work, the left end of the limit rod 802 inclines, the pedal 801 is driven to slide downwards, the pedal 801 is abutted to the second spring 803, the second spring 803 compresses, when the limit rod 802 corresponds to the limit groove 806, the second spring 803 extends to drive the pedal 801 to reset, the pedal 801 drives the limit rod 802 to slide rightwards, so that the limit rod 802 is clamped with the limit groove 806, the reset rod 804 is limited, then the end parts 2, the universal parts 3 and the special parts 4 are mounted one by adopting the fixed magnetic box 10 (the position of the sliding sleeves 702 is matched in the mounting process of the end parts 2 and the universal parts 3), the mounting process and the quality is improved; the flange of the laminated plate die is split into a plurality of sections, and the sections comprise end parts, special parts, general parts and the like which are used for lap joint, and each part is marked with a code representing the current part size specification by characters, so that the distinction is facilitated; each part can be positioned and butted through a butting structure 7; in the production and use process, selecting a mould component part suitable for the current laminated plate component, and splicing by matching the butt joint structure 7 with the fixed magnetic box 10 to form a required laminated plate mould; the end piece for overlap has the main function: (1) the method is used for overlapping the laminated slab structure mould in the length-width direction; (2) adapting the distance from the first steel bar at the most edge of the laminated slab member to the edge of the member; (3) adapting the distance from the second reinforcing steel bar at the most edge of the laminated slab member to the first reinforcing steel bar at the most edge of the laminated slab member; (4) optionally adapting other portions; the main functions of the special piece are as follows: (1) adapting to irregular intervals of the steel bars in the laminated slab component; (2) adapting to special positions in the laminated slab member, such as positions where reinforcing steel bars of different types are required to be arranged at certain positions, positions where gaps are required to be reserved in the laminated slab member, other specific design requirements and the like; the universal piece is mainly adapted to the position of the uniform distribution space (repeated fixed space) of the reinforcing steel bars in the laminated slab component, and can be selectively configured into one section or a plurality of sections according to the length of the component; so that the long flange or the short flange is not distinguished, and each part can be used in two flanges; the mold is not limited to be used for a certain type of laminated plate mold, and can be taken by any laminated plate mold as long as the size is proper; the repeated utilization rate of the laminated plate mold is greatly improved, the flanges of the laminated plate mold are formed by a plurality of sections, after long-term use and damage, the laminated plate mold is not required to be scrapped, only the damaged parts are replaced, the use cost is further reduced, the design that each flange is spliced by a plurality of parts is adopted, the deformation and the denaturation of integrally manufactured sectional materials are avoided, the correction is difficult, and the mold quality is improved;

when the end part 2 and the universal part 3 are disassembled, the pedal 801 is stepped on by feet, the pedal 801 is pressed against the second spring 803 to compress, the pedal 801 drives the limiting rod 802 to slide leftwards, the limiting rod 802 is not clamped with the limiting groove 806, the third spring 805 drives the reset rod 804 to slide upwards, the reset rod 804 is convenient to press against the sliding sleeve 701, the sliding sleeve 701 is separated from the sliding rod 702, and the sliding sleeve 701 and the sliding rod 702 are convenient to disassemble;

after binding the reinforcing steel bars, enabling the end parts of the reinforcing steel bars to be exposed out of the through holes 11, then sliding the sliding block 604 at the bottom end of the connecting rod 602 with the fixed frame 603, enabling the clamping block 608 to be clamped with the sliding block 604 (as the clamping block 608 faces one end of the sliding block 604 and is inclined, the sliding block 604 cannot be blocked when the sliding block 604 slides downwards), limiting the sliding block 604 through the clamping block 608, enabling the plug rod 601 to seal the top ends of the through holes 11, preventing slurry leakage in the pouring process, improving pouring quality, inserting a practical crow bar between the pressing plate 605 and the sliding block 604, poking the crow bar in an initial state, enabling the plug rod 601 to be separated from the through holes 11 more conveniently due to the fact that the sliding block 604 is limited by the clamping block 608, enabling the pressing plate 605 to slide downwards, enabling the pressing plate 605 to drive the guide rod 610 to slide downwards, enabling the first spring 611 to compress, enabling the pressing plate 605 to drive the driving rod 606 to slide downwards, enabling the driving groove 607 to drive the roller 609 to roll, enabling the roller 609 to drive the clamping block 604 to slide away from the sliding block 604, enabling the clamping block 608 not to be limited by the clamping block 608, and after the pressing plate 605 is abutted against the fixed frame 603, enabling the sliding block 604 to slide upwards, and enabling the plug rod 601 to be separated from the through holes 11 to be more convenient to be removed;

when pouring is finished, when the film 12 is needed, the handle 901 is held by hand, the handle 901 is pulled, the fixing box 903 is far away from the cover plate 501, the clamping rod 902 is not clamped with the cover plate 501, the limit of the cover plate 501 is released, then the film 12 is pulled, the film 12 drives the rolling wheel 506 to rotate, the rotating shaft 505 is enabled to rotate, after the film 12 covers the laminated plate, the magnet 904 is adsorbed to the mold table 1, further the film 12 is enabled to be more convenient to cover, the spring in the spring box 503 deforms in the rotating shaft 505, the guide wheel 504 rotates in the moving process of the film 12, friction force is reduced, the film 12 is enabled to be more flexible to use, after the technology is used, the magnet 904 and the mold table 1 do not adsorb, the spring box 503 drives the rotating shaft 505 to rotate, the rolling wheel 506 rolls up the film 12 again, and when the inside of the storage box 502 is overhauled and maintained, the cover plate 501 is pulled, and the tension spring 507 rotates.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (1)

1. The split type superimposed sheet mould is characterized by comprising a mould table (1), wherein four groups of end parts (2) are arranged at four corners of the mould table (1), each group of end parts (2) is 2, and two end parts (2) of the same group are vertically arranged to form a right angle; a universal piece (3) is arranged between two end pieces (2) positioned on the same side of the rectangle, a special piece (4) is arranged on the die table (1), and the end pieces (2), the universal piece (3) and the special piece (4) are all fixed on the die table (1) through a fixed magnetic box (10); the end part (2), the universal part (3) and the special part (4) are respectively provided with a through hole (11) for arranging reinforcing steel bars; sealing structures (6) for sealing the through holes (11) are arranged on the end part (2), the universal part (3) and the special part (4); the adjacent end parts (2), the adjacent universal parts (3), the adjacent end parts (2) and the universal parts (3) are positioned by adopting a butt joint structure (7), and a reset structure (8) is arranged in the butt joint structure (7); a storage structure (5) for winding the film (12) is arranged on the die table (1), and a fixing structure (9) is arranged on the storage structure (5);

the sealing structure (6) comprises a fixed frame (603), the fixed frame (603) is arranged on the end part (2), the universal part (3) and the special part (4), a sliding block (604) is arranged on the fixed frame (603) in a sliding mode, a connecting rod (602) is arranged at the top end of the sliding block (604), and a plurality of plug rods (601) used for sealing the through holes (11) are arranged on the connecting rod (602);

the fixing frame (603) is provided with a pressing plate (605) in sliding connection, two ends of the pressing plate (605) are fixed with driving rods (606), each driving rod (606) is provided with a transmission groove (607) which is obliquely arranged, each transmission groove (607) is provided with a roller (609) in a rolling manner, each roller (609) is rotationally connected with a clamping block (608), each clamping block (608) is in sliding connection with the fixing frame (603), the sliding direction of each clamping block (608) is perpendicular to the sliding direction of each driving rod (606), each clamping block (608) is inclined towards one end of each sliding block (604), and one end of each clamping block (608) deviating from each sliding block (604) is provided with a rectangular groove;

the bottom end of the pressing plate (605) is provided with a guide rod (610) which is in sliding connection with the fixed frame (603), and a first spring (611) is arranged between the pressing plate (605) and the fixed frame (603);

the butt joint structure (7) comprises a sliding sleeve (701), the end parts of the end part (2), the universal part (3) and the special part (4) are respectively fixed with the sliding sleeve (701), a sliding rod (702) is arranged in the sliding sleeve (701) in a sliding manner, two adjacent sliding rods (702) are fixed on the same bottom plate (703), and the bottom plate (703) is in interference with the die table (1);

the reset structure (8) comprises a reset rod (804), the reset rod (804) is slidably arranged in the slide rod (702), the reset rod (804) penetrates through a third spring (805), one end of the third spring (805) is fixed on the reset rod (804) and the other end of the third spring is abutted against the bottom plate (703), a limit rod (802) is slidably arranged on the bottom plate (703), the right end of the limit rod (802) is triangular and is clamped with a limit groove (806) on the reset rod (804), the left end of the limit rod (802) is obliquely arranged, the limit rod (802) is slidably connected with a pedal (801), the pedal (801) is slidably connected with the bottom plate (703), and a second spring (803) is arranged between the pedal (801) and the bottom plate (703);

the storage structure (5) comprises a storage box (502), the storage box (502) is fixed on the die table (1), a rotating shaft (505) is rotatably arranged on the storage box (502), a spring box (503) is arranged on the storage box (502), the rotating shaft (505) is reset through the spring box (503), and a winding wheel (506) for winding the film (12) is arranged on the rotating shaft (505);

a cover plate (501) which is rotationally connected is arranged on the storage box (502), a base (508) is arranged on the storage box (502), and a tension spring (507) is fixed between the base (508) and the cover plate (501);

a guide wheel (504) for guiding the film (12) is arranged on the cover plate (501);

the fixing structure (9) comprises a fixing box (903), the film (12) is fixed on the fixing box (903), a magnet (904) is fixed on the fixing box (903), the magnet (904) is adsorbed on an iron plate (509) on the storage box (502), a handle (901) is fixed on the fixing box (903), and a clamping rod (902) on the handle (901) is clamped with the cover plate (501).