TW202041763A - Building forming device, building forming method and demolding method capable of eliminating a mold opening step and improving construction efficiency of the building by continuously forming the wall and the floor of the building - Google Patents

Abstract

Provided are a building forming device, a building forming method and a demolding method. The building forming device includes an outer mold, a modularized inner mold with a retracting mechanism, and a lifting mechanism for lifting the outer mold and the inner mold. The inner mold includes two second top slabs suitable for forming a floor slab. The building forming device also includes a mold taking mechanism. The mold taking mechanism includes a gripper for gripping the inner mold, and a driving mechanism for driving the gripper. A building forming method using the building forming device includes: after forming a section of the wall, pulling the inner mold and the outer mold to slide upward for a preset distance; continuing to form the next section of the building's wall; forming a wall of the building in sections; and using the second top slab of the inner mold to form a floor slab. By using this method, it is able to eliminate a mold opening step after forming the wall of the building, increase the continuity of the forming of the wall and the floor of the building, and improve the construction efficiency.

Description

Building forming device, building forming method and demoulding method

The invention relates to a building construction device and technology, in particular to a building forming device, a building forming method and a demolding method.

At present, the construction industry generally adopts manual construction of various scaffolds, manual disassembly and assembly of building templates, manual on-site welding of steel bars in walls and columns, and manual handling of templates. The quality is often not guaranteed. Especially for buildings with multi-layer structures, the labor intensity is high. , The construction period is slow, the cost is high, and there are many potential safety hazards.

To solve the above problems, a variety of molding devices have been proposed for multi-layer structure houses. However, after the concrete wall of each floor is formed, the wall template mold must be opened before the molding work of the previous floor can be performed. When constructing each floor, the main mold must first be raised at least a certain height, spray the wall with a spray device, then arrange the prefabricated slab on the top of the wall and place the concrete to form the floor, and then spray Floor molding surface, and then lower the main mold to the production floor. In other words, after the wall of the floor is built, it is still necessary to wait for a period of time to build the floor slab on it to form a full floor. The more floors are built, the time wasted waiting for construction will increase. Therefore, it is known The construction method still needs improvement in terms of construction efficiency.

One of the objectives of the present invention is to improve the construction efficiency of houses with multi-layer structures by saving the time of the mold opening step after the wall is formed and improving the continuity of floor wall and floor slab molding during the building process. The labor intensity of workers.

The building forming device is suitable for forming a building including several walls and several floors, and includes an outer mold, an inner mold, and a lifting mechanism for lifting the outer mold and the inner mold. The inner mold includes an inner mold top plate suitable for forming the floor slabs.

The function of the building forming device is that the inner mold is a modular inner mold with a retracting mechanism. After forming a section of the wall of the building, pull the inner mold and the outer mold to move upward for a preset distance. The next section of the wall of the building can be formed continuously, and the method can save the time of the mold opening step after the wall is formed, and improve the construction efficiency.

Another object of the present invention is to provide a building molding method that can overcome at least one of the disadvantages of the prior art.

The building forming method includes: (1) providing an outer mold and an inner mold as described in claim 1, the inner mold and the outer mold cooperate to define a pouring space, and concrete is poured in the pouring space; 2) After the concrete has solidified and reached the standard that it will not collapse, control a lifting mechanism as described in claim 1 to pull the outer mold and the inner mold to move upward; (3) Use an inner mold top plate of the inner mold and the inner mold One of the floor slabs is formed by an outer mold. The effect of the building forming method is that it can save the mold opening steps after the wall of the building is formed, improve the continuity of forming the wall and the floor of the building, and improve the construction efficiency.

Another object of the present invention is to provide a demolding method that can overcome at least one of the disadvantages of the prior art.

The demolding method includes: (1) releasing a locking mechanism, and using a first retracting mechanism to shrink a first inner module; (2) making the first inner module relative to two second inner modules located on both sides The two inner modules move downwards to form an escape space between the second inner modules; (3) Use a second retracting mechanism to shrink the second inner modules and make the second inner modules Move to the middle, and then move down to demould.

The effect of the demolding method is that it can improve the construction efficiency of a building with a multi-layer structure and reduce the labor intensity of workers.

1 to 3, an embodiment of the building molding device, building molding method, and demolding method of the present invention is a building molding device 1, which is suitable for making a building 16. The building 16 includes several floor plates 17 spaced up and down, and several walls 17' extending upright. The walls 17' are formed with a plurality of mold openings 11 that appear to be symmetrical in two groups in FIGS. 1 and 2.

This embodiment includes an outer mold 3, two inner molds 4, and a lifting mechanism 5 for lifting the outer mold 3 and the inner molds 4. In other embodiments of the present invention, the building forming device 1 can also include only one inner mold 4 or more than three inner molds 4 depending on the predetermined size of the building 16.

Referring to FIGS. 25 to 28, each inner mold 4 has a rectangular parallelepiped shape and includes a first inner module 41 located in the center, and two movable relative to the first inner module 41 and are respectively located in the first inner module 41 Two second inner modules 42 on opposite long sides.

The longitudinal section of each first inner module 41 is an isosceles trapezoid with a bottom side larger than the top side as shown in FIG. 27, and includes a first inner module at the top and suitable for forming one of the floor slabs 17 (see FIG. 27). The top plate 401 and two first forming plates 402 respectively located at two opposite ends of the length direction of the first top plate 401 and capable of forming the walls 17'.

At least one of the first forming plates 402 of each first inner module 41 is a movable first movable plate 403. In FIGS. 25 and 26, each first inner module 41 uses the first molding plate 402 facing the reader as the first movable plate 403. A first retracting mechanism 403 ′ capable of moving the corresponding first movable plate 403 to the inner side of the first inner module 41 is provided between each first movable plate 403 and the corresponding first top plate 401.

Referring to Figures 27 to 31, each first retracting mechanism 403' includes a first connecting plate 404 extending downward from the corresponding first top plate 401 and located inside the corresponding first movable plate 403, and several The first linkage plate 405 on the inner side of the first connecting plate 404, a number of which extend obliquely downward from the first movable plate 403 toward the inside of the first inner module 41 and are inserted into the first connecting plate 404 and the The first displacement oblique block 406 of the first linkage plate 405 and a first adjustment assembly 406 ′ for adjusting the distance between the first movable plate 403 and the first connecting plate 404.

Each first connecting plate 404 is formed with a plurality of first avoiding slots 407 corresponding to the first displacement oblique blocks 406. Each first linkage plate 405 is formed with a first oblique guide hole 405 ′ at a position corresponding to the respective first avoidance groove 407. Each first displacement oblique block 406 passes through the corresponding first avoidance groove 407 and the corresponding first oblique guide hole 405 ′, and cooperates with the first movable plate 403 to form an included angle of 45 degrees. The oblique angle (direction) of each first oblique guide hole 405 ′ obliquely extends is the same as the oblique angle (direction) of the corresponding first displacement oblique block 406 obliquely extends.

Each of the first top plates 401 adjacent to the corresponding first movable plate 403 is formed with a chamfered edge 401 ′ extending from the outside to the inside of the first inner module 41 and inclined at 45 degrees downward. Each chamfered edge 401' facilitates the relative movement of the corresponding first movable plate 403. A sealing rubber strip 408 corresponding to the chamfered edge 401 ′ of the corresponding first top plate 401 is provided on the inner side of the top end of each first movable plate 403. One side of each sealing strip 408 is attached to the corresponding chamfered edge 401 ′ of the first top plate 401.

Each first adjusting component 406' (see Figures 27 and 31) includes a first adjusting seat 409 protruding inward from the inner side of the corresponding first movable plate 403, and a first adjusting seat 409 fixed on the inner side of the first connecting plate 404 and extending toward A first fixing seat 410 extending inward, and a first adjusting screw 411 inserted in the first fixing seat 410.

One end of each first adjusting seat 409 is connected to the first movable plate 403, the other end passes through the first connecting plate 404, and a threaded hole 409' is formed through up and down. Each first connecting plate 404 corresponding to the first adjusting seat 409 is formed with a second avoiding groove 412 for the first adjusting seat 409 to pass through.

Each first fixing seat 410 is formed with a first displacement groove 413 penetrating up and down at a portion corresponding to the threaded hole 409'. Each first adjusting screw 411 penetrates through the threaded hole 409' of the corresponding first adjusting seat 409 and the first displacement groove 413, and the first adjusting screw 411 corresponds to the corresponding first fixing seat 410 A first limiting component 413' that can restrict the first adjusting screw 411 from moving up and down relative to the corresponding first fixing seat 410 is provided at the position of. Each first top plate 401 is formed with a notch 401" corresponding to the corresponding first adjusting screw 411. Each notch 401 ″ can facilitate the spanner to extend into the corresponding first inner module 41 from above to adjust the corresponding first adjusting screw 411. Each gap 401" is provided with a first sealing block 417.

Each first limiting component 413' includes two first nuts 414 located above the corresponding first fixing seat 410 and threadedly connected with the corresponding first adjusting screw 411, and two located on the corresponding first fixing A second nut 415 under the seat 410 and threadedly connected with the corresponding first adjusting screw 411. The first nuts 414 are self-locking in pairs to form a first upper limit body 414 ′ that restricts the corresponding first adjusting screw 411 from moving downward relative to the corresponding first fixing seat 410. The second nuts 415 are self-locking in pairs to form a first lower limiting body 415 ′ that restricts the corresponding first adjusting screw 411 from moving upward relative to the corresponding first fixing seat 410. Between the corresponding first upper limit body 414' and the corresponding first fixing seat 410, and between the corresponding first lower limit body 415' and the corresponding first fixing seat 410, a Spacer 416.

The working principle of each first retracting mechanism 403' is as follows: when each first adjusting screw 411 is rotated through a wrench, since the first adjusting screw 411 is threadedly connected with the corresponding first adjusting seat 409, and the corresponding first adjusting screw 411 is threaded A limit component 413' restricts the vertical upward movement of the first adjustment screw 411, so the corresponding first movable plate 403 will follow the corresponding first movable plate 403 under the guidance of the corresponding first displacement oblique blocks 406 Wait for the first inclined guide hole 405' to move inward and downward, and the angle between the moving direction of the first movable plate 403 and the corresponding normal direction of the first connecting plate 404 is 45 degrees. Each first top plate 401 is provided with the chamfered edge 401', which facilitates the corresponding first movable plate 403 to move along the chamfered edge 401'. In addition, the corresponding sealing rubber strip 408 is provided on each chamfered edge 401 ′, which can prevent concrete from flowing between the corresponding first connecting plate 404 and the first movable plate 403 through the gap.

25 to 28, each second inner module 42 includes a second top plate 421 located on the top and suitable for forming one of the floor plates 17, and two second top plates 421 located on the sides and capable of forming the walls 17' Two forming plates 422 and a third forming plate 423.

The second top plates 421 of each inner mold 4 cooperate with the first top plate 401 to form an inner mold top plate 420 of the inner mold 4 (see FIG. 25). The second forming plates 422 are divided into two groups. The second forming plates 422 of each group are located on the same side but spaced apart along the length of the corresponding inner mold 4, and the second forming plates of each group The plate 422 cooperates with the corresponding first forming plate 402 to form one of the long sides of the inner mold 4. The third forming plates 423 respectively constitute two short sides of the inner mold 4.

At least one of the second forming plates 422 of each second inner module 42 is a movable second movable plate 424. In FIGS. 25 and 26, each second inner module 42 uses the second molding plate 422 facing the reader as the second movable plate 424. A second retracting mechanism 424' capable of moving the second movable plate 424 toward the inner side of the second inner module 42 is provided between each second movable plate 424 and the corresponding second top plate 421, and each inner The second movable plates 424 of the mold 4 and the first movable plates 403 are all located on the same side.

Referring to FIGS. 26, 27, and FIGS. 32 to 35, each second retracting mechanism 424' includes a second connection extending downward from the corresponding second top plate 421 and located inside the corresponding second movable plate 424 The board 425, the plurality of second linkage boards 426 arranged inside the second connecting board 425, and the plurality of second movable boards 424 extend inwardly and downwardly from the second movable board 424 and are inserted into the corresponding second connecting board 425 and the corresponding The second displacement oblique blocks 427 of the second linkage plates 426, and a second adjustment component 427' for adjusting the distance between the corresponding second movable plate 424 and the second connecting plate 425.

Each second connecting plate 425 is formed with a plurality of third avoiding grooves 428 at positions corresponding to the second displacement oblique blocks 427. Each second interlocking plate 426 is formed with a second inclined guide hole 426'. Each second displacement oblique block 427 penetrates through the corresponding third clearance slot 428 and the corresponding second oblique guide hole 426'. Each second displacement oblique block 427 extends obliquely from the corresponding second movable plate 424 to the corresponding second connecting plate 425 as shown in FIGS. 32 to 34, or to the inside of the corresponding second inner module 42 It extends obliquely downwards, and cooperates with the corresponding second movable plate 424 to form an included angle of 45 degrees, and each second displacement oblique block 427 also extends obliquely downward toward the first inner module 41 as shown in FIG. 27 , And coordinate with the vertical and horizontal directions to define an included angle of 45 degrees. That is to say, the projection of each second displacement oblique block 427 on the corresponding second movable plate 424 has an angle of 45 degrees with respect to the horizontal direction and the vertical direction. The oblique angle (direction) of each second oblique guide hole 426 ′ obliquely extends is the same as the oblique angle (direction) of the corresponding second displacement oblique block 427 obliquely extends.

Each second top plate 421 is formed with a chamfered edge 421 ′ that faces the corresponding second movable plate 424 and extends downwardly by 45 degrees toward the inside of the second inner module 42. Each third forming plate 423 is formed with a chamfered edge 423 ′ extending toward the corresponding second movable plate 424 and inclined at 45 degrees to the inside of the second inner module 42 (see FIG. 35 ). The chamfered edges 421 ′ and 423 ′ facilitate the relative movement of the second movable plates 424. A sealant strip 408 corresponding to the chamfered edge 421' of the corresponding second top plate 421 is provided on the inner side of the top end of each second movable plate 424, and one side of each sealant strip 408 corresponds to the first The chamfered edges 421' of the two top plates 421 are attached to each other. The inner side of each second movable plate 424 close to the corresponding third forming plate 423 is provided with a sealing rubber strip 408 (Figure 35) that is attached to the chamfered edge 423' (see Figure 35) of the corresponding third forming plate 423. (Not shown), and one side of each sealing strip 408 is attached to the chamfered side 423' (see FIG. 35) of the corresponding third molding plate 423 (the attached state diagram is not shown).

As shown in FIG. 34, each second adjusting component 427' includes a second adjusting seat 429 protruding inward from the inner side of the corresponding second movable plate 424, and a second fixing seat 429 fixed on the inner side of the second connecting plate 425. Seat 430, and a second adjusting screw 431 inserted in the second fixing seat 430.

One end of each second adjusting seat 429 is connected to the second movable plate 424, and the other end passes through the corresponding second connecting plate 425, and a threaded hole 429' is formed through up and down. Each second connecting plate 425 is formed at a position corresponding to the second adjusting seat 429 with a fourth avoiding groove 435 for the corresponding second adjusting seat 429 to pass through.

Each second fixing seat 430 is formed with a second displacement groove 432 penetrating up and down at a portion corresponding to the threaded hole 429 ′. Each second adjustment screw 431 passes through the threaded hole 429' of the corresponding second adjustment seat 429 and the corresponding second displacement groove 432, and each second adjustment screw 431 corresponds to the corresponding second The fixing base 430 is provided with a second limiting component 431 ′ that restricts the second adjusting screw 431 from moving up and down relative to the corresponding second fixing base 430. Each second top plate 421 corresponds to the corresponding second adjusting screw 431 to form a notch 421 ″. Each notch 421 ″ can facilitate the spanner to extend into the corresponding second inner module 42 from above to adjust the corresponding second adjusting screw 431. Each gap 421" is provided with a second sealing block 437.

Each second limiting component 431' includes two third nuts 433 located above the corresponding second fixing seat 430 and threadedly connected to the corresponding second adjusting screw 431, and two located on the corresponding second fixing seat A fourth nut 434 below 430 and threadedly connected with the second adjusting screw 431. The third nuts 433 of each second limiting component 431' are self-locking in pairs to form a second upper limit that restricts the corresponding second adjusting screw 431 from moving downward relative to the corresponding second fixing seat 430 Body 433'. The fourth nuts 434 of each second limiting component 431' are self-locking in pairs to form a second lower limit that restricts the corresponding second adjusting screw 431 from moving upward relative to the corresponding second fixing seat 430 Position 434'. Between each second upper limit body 433' and the corresponding second fixing seat 430, and between each second lower limit body 434' and the corresponding second fixing seat 430, a spacer 416 is respectively provided .

The working principle of each second retracting mechanism 424' is as follows: when each second adjusting screw 431 is rotated through a wrench, each second adjusting screw 431 is threadedly connected with the corresponding second adjusting seat 429, and the corresponding The second limiting component 431' restricts the vertical upward movement of the second adjusting screw 431, so the corresponding second movable plate 424 will be guided by the corresponding second displacement oblique blocks 427 along the corresponding Wait for the second oblique guide hole 426' to move inward and downward, and move toward the first inner module 41 toward the middle. The angle between the movement direction of each second movable plate 424 and the normal direction of the corresponding second connecting plate 425 is 45 degrees (as shown in FIG. 33), and the moving direction is on the corresponding second connecting plate 425 The projection angle with the horizontal and vertical directions is also 45 degrees (as shown in Figure 27). Each second top plate 421 and the corresponding third forming plate 423 are provided with the chamfered edges 421' and 423', allowing the corresponding second movable plate 424 to follow the chamfered edges 421' and 423' Move smoothly. In addition, the sealing rubber strips 408 are arranged on the chamfered edges 421 ′ and 423 ′ to prevent concrete from flowing between each second movable plate 424 and the corresponding second connecting plate 425 through the gap.

Referring to Figures 1 to 3, the lifting mechanism 5 includes a number of lifting column groups 6 arranged around the outer mold 3, a lifting seat 7 erected on the top of the lifting column group 6, and several lifting seats 7 suspended from the bottom. Hanging extension connecting piece 8.

Each lifting column group 6 includes a base 62 set on the ground, a jacking cage 61 located on the base 62, a plurality of tower sections 63 extending upward from the jacking cage 61, and a plurality of support at The base 62 and the hydraulic cylinder 63 ′ of one of the tower sections 63.

Each base 62 includes a plurality of pivot parts 65. Each lifting cage 61 is fixed on the corresponding base 62 and defines an accommodation space (not shown). The tower sections 63 of each lifting column group 6 are connected up and down, and each tower section 63 is provided with a supporting slot 64, and the lowermost tower section 63 is arranged on the base 62 and located in the containing space in. Each hydraulic cylinder 63 ′ includes a base pivotally connected to the pivoting portion 65 of the corresponding base 62, and a piston rod end connected to the corresponding supporting slot hole 64.

The lifting seat 7 includes two first cross beams 71 spaced apart from the front and rear and extending left and right, and a plurality of base plates 72 spaced apart from the left and right and extending front and rear, and located between the first cross beams 71. A second rail 9 is also formed on the top of each first beam 71.

The connecting pieces 8 are arranged on the bottom of the base plate 72 (refer to FIG. 2), and the bottom end of each connecting piece 8 can be connected to the top surfaces of the outer mold 3 and the inner molds 4 respectively as shown in FIG. It is connected and can be separated from the outer mold 3 and the inner molds 4 as shown in FIG. 1.

The operation of the lifting mechanism 5 is described as follows: the hydraulic cylinder 63' on each lifting column group 6 can lift the corresponding tower section 63 upward, and lift the lifting seat arranged on the top of the lifting column group 6 7. In this way, the connecting pieces 8 arranged at the bottom of the lifting base 7 and linked with the lifting base 7 will also be driven to move upward, and can move the inner mold 4 and the outer mold 3 toward Up promotion. When the tower section 63 in each jacking cage 61 moves up by a height of one tower section 63, another new tower section 63 is added to the jacking cage 61 as a support, and the corresponding hydraulic cylinders The ends of the piston rods of 63' are removed from the supporting grooves 64 of the existing tower section 63 above the other new tower section 63, and connected to the new tower section 63 Support the slot 64.

This embodiment also includes a mold-taking mechanism 2, a fixed plate 10 (see FIG. 23), a hoist 13, and a workbench 14 (see FIG. 22) for operation.

1 to 3, the mold taking mechanism 2 includes a driving mechanism 22 and a gripper 21 that can be used to grab the inner molds 4 and can be driven by the driving mechanism 22.

The driving mechanism 22 includes a cantilever beam 221, a trolley 222, and a telescopic arm 223.

The cantilever beam 221 extends back and forth to bridge between the first cross beams 71 of the lifting seat 7 (see FIG. 3 ), and is perpendicular to the first cross beams 71. The bottom of the cantilever beam 221 is provided with a roller mechanism 221' that matches the second rails 9 on the first cross beams 71 (see FIG. 1), and can move left and right along the second rails 9 (assisted reference figure) 13 to 16). The top surface of the cantilever beam 221 is provided with a first rail 224 extending forward and backward.

The trolley 222 is arranged on the first track 224 for the telescopic arm 223 to be arranged, and can move back and forth along the first track 224 (see FIGS. 13 to 16) to drive the telescopic arm 223 to move back and forth. The upper end of the telescopic arm 223 is arranged on the trolley 222, and the lower end is provided with a motor capable of rotating the gripper 21 and is provided for the gripper 21 to be set.

The grip 21 includes a grip arm 211 extending laterally and connected to the telescopic arm 223 at one end, and an adsorption body 212 disposed on the bottom surface of the other end of the grip arm 211. The adsorption body 212 can be a permanent magnetic chuck or an electromagnetic chuck.

Referring to FIGS. 22 to 24, the fixing plate 10 is arranged on the outer mold 3, one end is connected to the top plate of the outer mold 3, and the other end is fixed to the tower section 63. The crane 13 is erected on the trolley 222 of the driving mechanism 22 (see FIG. 1).

The four corners of the workbench 14 are pierced on the tower sections 63 of the lifting column groups 6, and a number of fixed casters 15 are provided at the bottom of the workbench 14 near the empty positions (see Fig. 2 for auxiliary reference). The wheels of each fixed caster 15 are in contact with the building 16. When the building 16 is formed to a certain height, the surrounding lifting column group 6 is connected to the building 16 through the workbench 14 as a whole, which can improve the stability of the lifting mechanism 5.

Referring to 17-21, the building molding device 1 of this embodiment can work with a building molding method as described below:

(1) As shown in FIG. 17, place the inner mold 4 on a floor 17 that has been formed, and set the outer mold 3 outside the inner molds 4.

(2) As shown in Figs. 18 to 19, the building 16 is formed in sections by moving the inner mold 4 and the outer mold 3 upward in sections. Specifically, concrete is poured between the inner molds 4 and in a pouring space S1 (refer to Figures 17, 19) formed by each inner mold 4 and the outer mold 3, and then using the lifting mechanism 5 The lifting column group 6 lifts the lifting seat 7 and drives the connecting pieces 8 to lift the inner mold 4 and the outer mold 3 upwards for a certain distance before continuing pouring, and then repeatedly raise the inner mold 4 and the outer mold 3 And pour until the pour height of the wall 17' of the building 16 is slightly lower than the one-story height requirement of the drawing as shown in Fig. 20. Specifically, the height of the wall 17' of the building 16 needs to meet the requirement that a new floor 17 and the remaining wall 17' can be formed at the same time by pouring one more time.

(3) As shown in Fig. 21, use the inner mold top plate 420 of each inner mold 4 and the side plates of the outer mold 3 to form a new floor 17 and the remaining part of the wall 17'.

Among them, it is necessary to cancel the connection between the connecting pieces 8 and the top plate of the inner mold 4 and the top plate of the outer mold 3 before forming the floor slab 17, and fill the threads at the connection between the inner mold 4 and the connecting pieces 8 Hole, and a jacking device 20 is placed under the inner molds 4 to support the inner molds 4. In addition, when forming the first floor 17 located at the bottom, the outer mold 3 cannot be fixed on the tower sections 63 through the fixing plate 10, and the crane 13 or the jacking device 20 must be used to prevent the outer mold 3 from turning Drop down.

(4) Next, separate the inner mold 4 from the building 16, and split each inner mold 4 into one of the first inner module 41 and the two second inner modules 42, and then pass the The mold taking mechanism 2 takes out the first inner module 41 and the second inner modules 42 of each inner mold 4 from the corresponding mold taking opening 11, places them on the newly formed floor 17 and assembles them into The inner mold 4 is then lifted up by the lifting mechanism 5 to the outer mold 3 and the mold taking mechanism 2 to a predetermined position sufficient to form another floor.

Through the above steps (2) to (3), the forming work of the wall 17' and the floor 17 of the first floor can be completed. Then, repeat steps (2) to (4) until all floors are completed.

The invention provides a building forming device and a building forming method used with the building forming device. Among them, each inner mold 4 is a modular inner mold 4 with the first retracting mechanism 403' and the second retracting mechanism 424'. After forming a section of wall 17', pull The inner molds 4 and the outer mold 3 slide upward for a predetermined distance, and continue to form the next section of wall 17', which enables the wall 17' to be formed in sections. The building forming method can save the time required for opening the mold after the wall 17' is formed, and improve the construction efficiency.

The building molding device 1 of the present invention can also work with a demolding method as described below. In the following description, one of the inner molds 4 is used for description:

(1) Referring to Figure 26, and Figures 29 to 31, the first retracting mechanism 403' of the first inner module 41 is used to make the first movable plate 403 of the first inner module 41 downward and inward The first connecting plate 404 moves to complete the reduction mold.

(2) Use a jacking trolley 201 to move the jacking device 20 to first remove the first inner module 41 with an isosceles trapezoid shape, and at the same time use the jacking device 20 to support the second inner modules 42. At this time, an escape space S2 will be formed between the second inner modules 42 (see Figure 26).

(3) Split the first inner module 41 into smaller components and take them out through the mold taking mechanism 2.

(4) Referring to Figure 26 and Figures 32 to 34, each second retracting mechanism 424' is used to make the corresponding second movable plate 424 of the second inner module 42 downward and inward toward the corresponding second The connecting plate 425 moves and moves to the avoiding space S2 located in the center to complete the shrinking. Then, the lifting trolley 201 is used to move the second inner modules 42 relative to the building 16 to translate to the middle to make the second inner modules 42 are close to each other, and then move down relative to the building 16 to demold.

(5) Split the second inner module 42 into several smaller components, and take them out through the mold taking mechanism 2.

Referring to FIGS. 1, 25, and 26, each inner mold 4 of this embodiment is shown in FIG. 1, and its length and width directions are the same as the length and width directions of the building 16. In use, since the inner mold 4 includes the first retracting mechanism 403' and the second retracting mechanism 424', it can be placed in the first movable plate 403 and the second movable plate 424 After shrinking, the width is reduced, so when demolding, the friction force of each inner mold 4 in the width direction can be reduced. In addition, since each inner mold 4 described in this embodiment adopts a modular design including the first inner module 41 and the second inner modules 42, it can be achieved by first centering the first inner module 41 Move downward to separate to form a retreat space S2 at the original position, so as to facilitate moving the second inner modules 42 corresponding to the two sides toward the middle to demold downward. The aforementioned demolding method can also prevent the second inner modules 42 of each inner mold 4 from contacting the building 16 in the length direction of the building 16 to eliminate friction.

Based on the above, using the inner mold 4 containing the aforementioned structure and the aforementioned demolding method, the inner mold 4 wrapped in the top of the building 16 can be demolded downward without damaging the concrete structure, and finally passed The mold taking mechanism 2 takes the demolded inner mold 4 out of the building 16, and after passing through the mold taking opening 11' of the wall 17', the inner mold 4 can be used again The top slab is used as the mold surface of the new floor 17, and concrete is directly poured on it to form the new floor 17, which improves the coherence of the molding of the floor wall 17' and the floor 17, thereby improving the construction efficiency of the building 16 with a multi-layer structure , And can reduce the labor intensity of workers.

4 to 12, this embodiment is suitable for working with the mold taking mechanism 2, and the mold taking mechanism 2 can use the inner mold 4 and the outer mold 3 to form a floor on the building 16 as shown in FIG. 4 After 17, take out the inner mold 4 by operating a mold-taking method as follows:

(1) Using the first retracting mechanism 403' (assistant reference Figure 30) and the second retracting mechanisms 424' (assistant reference Figure 33) of each inner mold 4 to make the first retracting mechanism of the inner mold 4 The movable plate 403 is retracted relative to the first connecting plate 404 (see FIG. 30), and the second movable plates 424 of the inner mold 4 are retracted relative to the corresponding second connecting plates 425 (auxiliary reference Fig. 33), and the inner mold 4 is separated from the building 16, and split into one first inner module 41 and two second inner modules 42 as shown in Fig. 26 (hereinafter each Each of the first inner module 41 and the second inner modules 42 where the inner mold 4 is separated from each other is called an inner mold unit), so that each inner mold 4 is placed in the just-formed mold as shown in FIG. 5 On the other floor 17 below the floor 17.

(2) As shown in FIG. 5, the telescopic arm 223 of the mold taking mechanism 2 is controlled to move the gripper 21 vertically downward until the gripper 21 and one of the mold taking openings 11 are at the same level.

(3) Control the trolley 222 to drive the gripper 21 to move horizontally until the adsorption body 212 passes through the mold taking opening 11 and is located above one of the inner mold units (not shown).

(4) As shown in FIG. 6, the telescopic arm 223 is controlled to drive the suction body 212 to move downward and grab one of the inner mold units.

(5) As shown in FIG. 7, the telescopic arm 223 is controlled to drive the gripper 21 to move one of the inner mold units vertically upward until the height of the one of the inner mold units corresponds to the height of the mold taking opening 11.

(6) As shown in FIG. 8, the trolley 222 is controlled to drive the gripper 21 to move one of the inner mold units horizontally to the outside of the building 16 through the corresponding mold taking opening 11.

(7) As shown in FIG. 9, the telescopic arm 223 is controlled to drive the gripper 21 to move one of the inner mold units vertically upward until it is higher than the newly formed floor 17.

(8) As shown in FIG. 10, the trolley 222 is controlled to drive the gripper 21 to move the corresponding one of the inner mold units horizontally above the newly formed floor 17.

(9) As shown in FIG. 11, control the telescopic arm 223 to drive the gripper 21 to place one of the inner mold units on the newly formed floor 17 and control the adsorption body 212 to remove the one of the inner mold units.

(10) Repeat the above steps (2) to (9) until all the inner mold units of each inner mold 4 are moved to the newly formed floor 17, and the inner mold units are assembled and restored to corresponding The inner mold 4.

(11) As shown in Fig. 12, the telescopic arm 223 and the trolley 222 are controlled to drive the gripper 21 to move to the exterior of the building 16 corresponding to the upper floor.

Referring to FIGS. 1, 3, and FIGS. 13 to 16, the first rail 224 and the second rails 9 are perpendicular to each other, and the gripper 21 can pass through the first rail at the top of the cantilever 221 of the trolley 222 224 moves back and forth, and can move left and right with the cantilever beam 221 when the cantilever beam 221 moves left and right on the second rails 9. The gripper 21 itself can rotate about the telescopic arm 223 as an axis. Therefore, in consideration of cost saving, only one gripper 21 is needed to extend into the building 16 through the mold taking openings 11 to perform mold taking operations at multiple angles. The crane 13 arranged on the trolley 222 can move together with the trolley 222, and its operating range can cover the entire construction space.

When the gripper 21 moves along the first rail 224 from one side of the first beam 71 to the other side, the gripper 21 needs to be rotated and lifted upward by the telescopic arm 223 and the motor located at the bottom end of the telescopic arm 223, as shown in FIG. 2 As shown, the gripper 21 is retracted into the cavity inside the cantilever beam 221, so as to prevent the gripper 21 from interfering with the first beam 71 during the movement.

The above are only examples of the present invention, and cannot be used to limit the scope of patent application of the present invention, and equivalent changes made according to the scope of patent application of the present invention and the contents of the specification should also be the present invention. Covered by the scope of the patent application.

1: Building forming device 10: fixed plate 11: Mold opening 13: Crane 14: Workbench 15: Fixed casters 16: Buildings 17: Floor 17': Wall 20: jacking device 201: Jack up car 2: Mold taking mechanism 21: Grasp 211: catch arm 212: Adsorption Body 22: drive mechanism 221: Cantilever 221': Roller mechanism 222: car 223: Telescopic boom 224: first track 3: Outer mold 4: Internal mold 41: The first inner module 401: first top board 401': chamfered edge 401'': gap 402: The first forming board 403: First Activity Board 403': First indentation mechanism 404: First connection board 405: First Linkage Board 405': first oblique pilot hole 406: First displacement oblique block 406': The first adjustment component 407: First Avoidance Slot 408: Sealing strip 409: first adjustment seat 409': threaded hole 410: The first fixed seat 411: first adjustment screw 412: Second Avoidance Slot 413: first displacement slot 413': The first limit component 414: first nut 414': the first upper limit body 415: second nut 415': The first lower limiter 416: Gasket 417: first block 42: The second inner module 420: inner mold top plate 421: second top plate 421': chamfered edge 421'': gap 422: second forming board 423: The third forming board 423': chamfered edge 424: second movable board 424': second retracting mechanism 425: second connecting plate 426: Second Linkage Board 426': second inclined pilot hole 427: Second displacement oblique block 427': second adjustment component 428: Third Avoidance Slot 429: second adjustment seat 429': threaded hole 430: second fixed seat 431: second adjustment screw 431': second limit component 432: Second displacement slot 433: third nut 433': second upper limit body 434: fourth nut 434': second lower limiter 435: Fourth Avoidance Slot 437: second block 5: Lifting mechanism 6: Lifting column group 61: jacking cage 62: Base 63: Tower Festival 63': hydraulic cylinder 64: support slot 65: pivot 7: Lifting seat 71: The first beam 72: substrate 8: Connector 9: second track S1: Pouring space S2: Avoidance space

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: 1 is a cross-sectional view viewed from front to back, illustrating an embodiment of the building molding device, building molding method and demolding method of the present invention, and illustrating a hoist and a gripper extending left and right in this embodiment; Figure 2 is a cross-sectional view viewed from the side, illustrating that the crane and the gripper extend back and forth, and the gripper position is elevated; Figure 3 is a top view illustrating the embodiment; 4 is a cross-sectional view viewed from the side, illustrating the state of the two inner molds of the embodiment before demolding; Figure 5 is a cross-sectional view viewed from the side, illustrating the state where the inner molds are placed on one of the floors after being demolded; Figure 6 is a cross-sectional view viewed from the side, illustrating that a gripper of this embodiment grabs one of the inner molds; Figure 7 is a cross-sectional view viewed from the side, illustrating that the gripper of the embodiment drives one of the inner molds to rise; Figure 8 is a cross-sectional view viewed from the side, illustrating that the gripper moves out of one of the inner molds from a mold-taking opening of a building; Figure 9 is a cross-sectional view viewed from the side, illustrating that the gripper drives one of the inner molds to rise outside the building; Figure 10 is a cross-sectional view viewed from the side, illustrating that the gripper moves one of the inner molds above the other floor; Figure 11 is a cross-sectional view viewed from the side, illustrating the gripper placing one of the inner molds on the other floor; Figure 12 is a cross-sectional view viewed from the side, illustrating that the gripper is separated from the building after it is moved out of the building; Figure 13 is a schematic top view illustrating the position and relationship of the gripper relative to a first rail and two second rails that are perpendicular to each other; 14 is a schematic top view illustrating the position and relationship of the gripper relative to the first rail and the second rails that are perpendicular to each other; 15 is a schematic top view illustrating the position and relationship of the gripper with respect to the first rail and the second rails that are perpendicular to each other; Figure 16 is a schematic top view illustrating the position and relationship of the gripper relative to the first rail and the second rails that are perpendicular to each other; Figure 17 is a side sectional view illustrating the state before concrete is poured between the inner molds and an outer mold; Figure 18 is a cross-sectional view viewed from the side, illustrating the state after concrete is poured between the inner molds and the outer mold; Figure 19 is a cross-sectional view viewed from the side, illustrating the state in which the inner molds and the outer mold move upward after concrete is poured; Figure 20 is a cross-sectional view viewed from the side, illustrating the state before forming another floor above the inner molds and the outer mold; Figure 21 is a cross-sectional view viewed from the side, illustrating the use of a jacking device to support the inner molds; Figure 22 is a top view illustrating a workbench of this embodiment; Figure 23 is a cross-sectional view viewed from front to back, illustrating that the outer mold is connected to several tower sections through a fixed plate; Figure 24 is a top view illustrating that the outer mold is connected to the tower sections through the fixing plate; Figure 25 is a perspective view illustrating one of the inner molds of this embodiment; Figure 26 is a perspective exploded view illustrating one of the inner molds; Figure 27 is an incomplete cross-sectional view, longitudinally sectioned along the length of one of the internal molds, illustrating the internal structure of the one internal mold, and illustrating that the one internal mold is placed in the building; Figure 28 is a cross-sectional view taken along the length of one of the inner molds, and the viewing angle is from top to bottom, illustrating the internal structure of the one of the internal molds, and illustrating that the one of the internal molds is placed in the building; Figure 29 is an incomplete cross-sectional view, longitudinally cut and cut through two first displacement oblique blocks corresponding to the upper and lower sides of a first retracting mechanism of one of the inner molds, and illustrating a first movement of the first retracting mechanism The board is far away from a first connecting board; Figure 30 is an incomplete cross-sectional view, similar to Figure 29, and illustrates that the first movable plate is close to the first connecting plate; Figure 31 is an incomplete cross-sectional view, similar to Figure 29 but through another first displacement oblique block of the first retracting mechanism and a first adjustment assembly, and illustrates the first adjustment assembly; Figure 32 is an incomplete cross-sectional view, longitudinally sectioned, longitudinally sectioned and cut through the two second displacement oblique blocks corresponding to the upper and lower sides of one of the second retracting mechanisms of one of the inner molds, and explaining the one of the second retracting blocks A second movable plate of the entry mechanism is far away from a second connecting plate; Figure 33 is an incomplete cross-sectional view, similar to Figure 32, and illustrates that the second movable plate is close to the second connecting plate; Fig. 34 is an incomplete cross-sectional view similar to Fig. 32 but cut through another second displacement oblique block of one of the second retracting mechanisms and a second adjustment assembly, illustrating the second adjustment assembly; and Figure 35 is an incomplete three-dimensional view showing the circled area B in Figure 26 enlarged.

4: Internal mold

41: The first inner module

401: first top board

401': chamfered edge

401": gap

402: The first forming board

403: First Activity Board

42: The second inner module

420: inner mold top plate

421: second top plate

421': chamfered edge

421": gap

422: second forming board

423: The third forming board

423': chamfered edge

424: second movable board

S2: Avoidance space

Claims (23)

A building forming device is suitable for forming a building containing several walls and several floor slabs, and includes an outer mold, an inner mold, and a lifting mechanism for lifting the outer mold and the inner mold. The inner mold includes a An inner mold top plate suitable for forming such floor slabs. The building forming device according to claim 1, wherein the lifting mechanism includes a plurality of lifting column groups arranged around the outer mold, a lifting seat connected to the lifting column group, and a plurality of lifting seat bottoms arranged Connecting pieces, the bottom ends of the connecting pieces can be connected with the top surface of the inner mold and the top surface of the outer mold. The building forming device according to claim 2, wherein the lifting seat is arranged on the top of the lifting column groups, and includes a plurality of first beams extending transversely and parallel to each other, and a plurality of first beams located at the first beams The substrates extending vertically and parallel to each other are arranged at the bottom of the substrates. The building forming device according to claim 2, wherein each lifting column group includes a base, a lifting cage, a plurality of hydraulic cylinders, and a plurality of tower sections, and the tower sections are connected up and down with each other and the lowermost The tower section is set on the base, the jacking cage is fixed on the base, and defines an accommodating space that can accommodate one of the tower sections, the lowermost tower section is set in the accommodating space, the One of the tower sections is provided with a number of supporting slots, the base is provided with a number of pivoting parts, the bases of the hydraulic cylinders are pivotally connected to the pivoting parts, and the ends of the piston rods of the hydraulic cylinders are connected to the supporting parts. Support slot hole. A building molding device according to claim 1, further comprising a mold taking mechanism, which includes a gripper that can be used to grip the inner mold, and a driving mechanism for driving the gripper. The driving mechanism includes a cantilever beam, a trolley, and a telescopic arm. The top surface of the cantilever beam is provided with a first track, the trolley is arranged on the first track, and the top of the trolley is provided with a hoist, The upper end of the telescopic arm is arranged on the trolley, the gripper is arranged on the lower end of the telescopic arm, and the lower end of the telescopic arm is provided with a motor for rotating the gripper around the telescopic arm. The gripper includes a gripper arm and a The adsorption body, one end of the grasping arm is connected with the driving mechanism, the adsorption body is arranged on the bottom surface of the other end of the grasping arm, and the adsorption body is a permanent magnetic chuck or an electromagnetic chuck. The building molding device according to claim 1, wherein the inner mold includes a first inner module in an intermediate position, and two second inner modules located on opposite sides of the first inner module, the first inner module The module and the second inner modules are connected by a locking mechanism, and the first inner module includes a first top plate on the top and suitable for forming the floor slabs, and two on both sides suitable for forming the walls The first forming board, each second inner module includes a second top board at the top and suitable for forming the floor slabs, and two second forming boards and a third forming board on the side and suitable for forming the walls The first top plate and the second top plates corresponding to each second inner module cooperate to form the inner mold top plate of the inner mold, and the second forming plates of each second inner module correspond to the first A molding board is coplanar, at least one of the first molding boards is a first movable board, and a first movable board is provided between the first movable board and the first top board so that the first movable board faces the first inner The first retracting mechanism that moves inside the module, at least one of the second forming plates is a second movable plate, and a second movable plate is provided between each second movable plate and each corresponding second top plate. A second retracting mechanism for moving the two movable plates to the inner side of the corresponding second inner module. A building forming device according to claim 6, wherein the inner mold is in the shape of a rectangular parallelepiped, each third forming plate is located on two opposite sides of the inner mold in the length direction, and each first forming plate corresponds to the The second forming plate is located on one of the two opposite sides in the width direction of the inner mold. The building forming device according to claim 6, wherein the first retracting mechanism includes a first connecting plate connected with the first top plate, a plurality of first linkage plates arranged on the first connecting plate, A plurality of first displacement oblique blocks connected to the first movable plate, and a first adjustment assembly for adjusting the separation distance between the first movable plate and the first connecting plate, the first connecting plate is parallel to the first movable plate The board is arranged on the inner side of the first movable board, and is formed with first clearance slots corresponding to the first displacement oblique blocks, each first linkage board is formed with a first oblique guide hole, and each first The displacement oblique block passes through the corresponding first clearance slot and is inserted into the corresponding first oblique guide hole of the first linkage plate. The building forming device according to claim 8, wherein each first displacement oblique block extends obliquely downward toward the inside of the first inner module, and cooperates with the first movable plate to form an included angle of 45 degrees, The oblique angle of each first oblique guide hole is the same as the oblique angle of the corresponding first displacement oblique block. The building forming device according to claim 9, wherein the first top plate is formed with a chamfered edge that facilitates the relative movement of the first movable plate and extends 45 degrees downward from the outside to the inside of the first inner module . The building forming device according to claim 10, wherein the inner side of the top end of the first movable plate is provided with a sealing strip corresponding to the chamfered edge of the first top plate, and one side of the sealing strip is connected to The chamfered edges of the first top plate are attached to each other. The building forming device according to claim 8, wherein the first adjustment assembly includes a first adjustment seat fixed inside the first movable plate, and a first fixing seat fixed inside the first connecting plate, And a first adjusting screw, one end of the first adjusting seat passes through the first connecting plate, and a part of the first connecting plate corresponding to the first adjusting seat is formed with a second clearance for the first adjusting seat to pass through Groove, the first adjusting seat is provided with a threaded hole, the first fixing seat is provided with a first displacement groove at the corresponding position, and the first adjusting screw is screwed in the threaded hole and penetrated in the first displacement groove, The first adjusting screw corresponds to the first fixing base and is provided with a first limiting component that restricts the first adjusting screw from moving up and down relative to the first fixing base. The building forming device according to claim 12, wherein the first limiting component includes two first nuts located above the first fixing seat and threadedly connected with the first adjusting screw, and two A second nut under the fixing seat and threadedly connected with the first adjustment screw, the first nuts are self-locking to form a first upper limit body that restricts the downward movement of the first adjustment screw relative to the first fixing seat, the The second nuts are self-locking to form a first lower limit body that restricts the upward movement of the first adjustment screw relative to the first fixing seat, between the first upper limit body and the first fixing seat, and the second A gasket is respectively arranged between the lower limit body and the first fixing seat. The building forming device according to claim 6, wherein each second retracting mechanism includes a second connecting plate connected to the corresponding second top plate, and a plurality of second connecting plates arranged on the second connecting plate. A linkage plate, a plurality of second displacement oblique blocks connected with the second movable plate, and a second adjusting assembly for adjusting the distance between the corresponding second movable plate and the corresponding second connecting plate, each The second movable plate corresponding to the second connecting plate is disposed on the inner side of the corresponding second movable plate in parallel, and each second connecting plate is formed with a plurality of third avoidances corresponding to the corresponding second displacement inclined blocks Each second linkage plate is provided with a plurality of second oblique guide holes, and each second displacement oblique block passes through the corresponding third escape slot and is inserted into the corresponding second oblique guide hole. The building forming device according to claim 14, wherein each second displacement oblique block extends obliquely downward toward the inside of the corresponding second module, and each second displacement oblique block is on the corresponding second movable plate The projection on the above, the angle between the horizontal and vertical directions is 45 degrees, the angle between each second displacement oblique block and the corresponding second movable plate is 45 degrees, and each second oblique guide hole extends obliquely The inclination angle is the same as the inclination angle of the corresponding second displacement oblique block. The building forming device according to claim 15, wherein each second top plate is formed with a chamfered edge that faces the corresponding second movable plate and extends downwardly by 45 degrees toward the inside of the second inner module , Each third forming plate is formed with a chamfered edge extending toward the corresponding second movable plate and inclined at 45 degrees to the inside of the second inner module, and the chamfered edges are beneficial to the corresponding second movable plate Move relatively. The building forming device according to claim 16, wherein a sealant strip corresponding to the chamfered edge of the corresponding second top plate is provided on the inner side of the top end of each second movable panel, and each sealant strip has One side is attached to the chamfered edge of the corresponding second top plate, and each second movable plate is provided with a chamfer corresponding to the corresponding third forming plate on the inner side of one end of the corresponding third forming plate Side corresponding to the sealing strip, one side of each sealing strip is attached to the chamfered side of the corresponding third molding plate. The building forming device according to claim 14, wherein each second adjusting component includes a second adjusting seat fixed inside the corresponding second movable plate, and a second adjusting seat fixed inside the second connecting plate. Fixing seat and a second adjusting screw, one end of each second adjusting seat passes through the corresponding second connecting plate, each second connecting plate corresponding to the corresponding second adjusting seat is provided with a corresponding The second adjusting seat penetrates the fourth clearance groove, each second adjusting seat is provided with a threaded hole, and each second fixing seat is provided with a second displacement groove at the corresponding position, and each second adjusting screw thread The corresponding threaded hole is connected and penetrated through the corresponding second displacement groove, and each second adjustment screw corresponding to the corresponding second fixing seat is provided with a restricting the second adjustment screw relative to the corresponding The second limiting component moves the second fixed seat up and down. The building forming device according to claim 18, wherein each second limiting component includes two third nuts located above the corresponding second fixing seat and threadedly connected with the corresponding second adjusting screw, and Two fourth nuts located under the corresponding second fixing seat and threadedly connected to the corresponding second adjusting screw, the third nuts self-locking in pairs to form a restricted corresponding second adjusting screw Relative to the second upper limit body that moves downwardly on the corresponding second fixing seat, the fourth nuts are self-locking in groups of two to form a restriction. The corresponding second adjusting screw is relative to the corresponding second fixing The second lower limit body for upward movement of the seat is provided between each second upper limit body and the corresponding second fixed seat, and between each second lower limit body and the corresponding second fixed seat. There is a gasket. The building forming device according to claim 6, wherein the cross section of the first inner module is an isosceles trapezoid with a bottom side larger than a top side. A building forming method, including: (1) Provide an outer mold and an inner mold as described in claim 1, the inner mold and the outer mold cooperate to define a pouring space, and concrete is poured in the pouring space; (2) After the concrete has solidified to the standard that it will not collapse, control a lifting mechanism as described in claim 1 to pull the outer mold and the inner mold to move upward; (3) Using the inner mold top plate and the outer mold of the inner mold to form one of the floor slabs. The method for forming a building according to claim 21, wherein in the step (2), concrete is poured vertically upwards and in sections in the pouring space, and after the poured concrete has solidified to a standard that does not collapse , The outer mold and the inner mold are pulled upward through the lifting mechanism to a preset position to form a new pouring space. The building forming method also includes a step of repeating steps (2) and (3) ( 4). A demoulding method, including: (1) Release a locking mechanism as described in claim 6, and use the first retracting mechanism as described in claim 6 to shrink the first inner module as described in claim 6; (2) Move the first inner module downwards relative to the second inner modules as described in claim 6, so that an escape space is formed between the second inner modules; (3) Utilize the second retracting mechanism as described in claim 6 to shrink the second inner modules, move the second inner modules to the middle, and then move downwards to demold.

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