KR20220029271A - Apparatus and method for removing mold from waffle slab - Google Patents

Abstract

The present invention relates to an apparatus and a method for separating a mold from a waffle slab. The apparatus comprises a support rack, a screw rod, a coupling unit, and a driving element. The screw rod is installed on a screw hole of the support rack to be rotatable. The coupling unit is installed on one end of the screw rod and is configured to mesh with the mold. The driving element provides torque to the screw rod by being connected with the other end of the screw rod.

Description

APPARATUS AND METHOD FOR REMOVING MOLD FROM WAFFLE SLAB

The present invention relates to an apparatus and method for separating a mold from a warp slab.

As new technologies are actively developed, the application fields of semiconductors are widening and the demand is increasing day by day. to perform fast and complex arithmetic. Accordingly, in order to satisfy the demand for a large amount of semiconductor products, the demand for the construction of semiconductor factories is also increasing. Semiconductors must strictly control the amount of dust in the surrounding environment during the manufacturing process to avoid destroying the precision and reliability of semiconductor products. The clean room consists of a grid beam perforated floor (warp slab) structure, and it is necessary to discharge dust from the clean room through the perforation of the warp slab by positive pressure, filter the air, and return it to the clean room to re-introduce it. It is a method commonly used in current semiconductor factories.

The general warp slab manufacturing method can be classified into two types: on-site construction and pre-casting on-site precasting. However, whether on-site construction or precasting, after installing a certain number of molds positioned inside the warp slab, the concrete slurry is poured between the plurality of inner molds and the outer mold surrounding the warp slab reinforcing bar cage, so that the warp slab and its to form a perforation in which it is located. One of the known methods holds the mold in the warp slab after the warp slab is formed, that is, does not demold the warp slab and the mold positioned thereon. This is impossible, and the manufacturing cost is increased. Another known method is to form a warp slab and then hit the top of the mold using a conventional striking tool such as a hammer, so that the mold is separated from the concrete surface of the perforation in contact with it, and the mold can be reused there is. However, in the above traditional striking method, it is difficult to precisely control the striking point and striking force, and it easily results in the destruction of the concrete surface of the warp slab and/or the deformation or destruction of the mold.

Therefore, in order to solve the above problem, an embodiment of the present invention is a demoulding device that can quickly separate a mold formed in the cavity of the concrete warp slab from the cavity in a situation that does not destroy the surface of the concrete warp slab and do not damage the mold provides The concrete warp slab includes a top surface and a bottom surface corresponding to the top surface, and the cavity communicates with the top surface and the bottom surface. The bottom diameter of the mold is larger than the top diameter of the mold. The mold includes a top wall and side walls. The top wall includes a plurality of perforations, and the inner surface of the side wall includes a plurality of longitudinal ribs.

In the above embodiment, the demolding device includes a support rack, a screw rod, a coupling portion and a driving means. The support rack includes a plurality of legs and a support body. The plurality of legs are fixed to the support body, the support body including screw holes. The screw rod is rotatably installed in the screw hole of the support body. The male thread of the screw rod is coupled to the female thread of the screw hole. The coupling part is installed at one end of the screw rod and is configured to mesh with the longitudinal rib of the mold, and the driving means is connected to the other end of the screw rod to provide torque to the screw rod. In one embodiment of the present invention, the coupling portion includes a dish-shaped structure, a cavity corresponding to the vertical rib is provided around the dish-shaped structure, and the dish-shaped structure includes a positioning groove formed therein, wherein , the positioning groove and the cavity are alternately arranged along the periphery of the dish-shaped structure.

According to an embodiment of the present invention, the demolding method using the demolding device includes: turning over the concrete warp slab so that the bottom surface of the concrete warp slab is seated upward; providing and seating the demolding device above the bottom surface of the concrete warp slab; inserting the coupling part into the mold to mesh with the longitudinal rib; and actuating the drive means to rotate the screw rod so that the screw rod moves in a straight line relative to the support rack and separates the mold from the concrete warp slab to expose the cavity. In an embodiment of the present invention, the engaging step of the coupling portion and the vertical rib may include: entering the plate-shaped structure into the mold at a first preset angle; and then rotating the dish-shaped structure to mesh with the positioning groove at a second preset angle.

In another embodiment of the present invention, the demolding device includes a body, an impact-resistant structure, a plurality of elongated meshing portions and an impact portion. The shock-resistant structure is located above the upper surface of the body. The elongated meshing portion is fixedly connected to the lower surface of the main body so as to be installed through the plurality of perforations in the upper wall of the mold. The impact portion provides an impact force to the impact resistant structure.

According to an embodiment of the present invention, the demolding method using the demoulding device includes the steps of providing and seating the demoulding device on the uppermost surface of the concrete warp slab; Installing the long-shaped meshing part through the mold to make contact with the vertical rib; and impacting the impact-resistant structure by using an impact part to separate the mold from the concrete warp slab to expose the cavity.

In another embodiment of the present invention, the demolding machine includes a support rack, a holding mechanism, a press structure and a driving means. The support rack includes a plurality of legs and a support body. The support body includes telescoping means, and the plurality of legs are fixed to the support body. The fixing mechanism is connected to the support body and fixes the support body to the top surface of the concrete warp slab. The press structure includes a press surface for contacting the mold and providing a thrust to the mold. The press structure is connected with the telescopic means of the support body of the support rack. The driving means is connected to the expansion and contraction means of the support body, and drives the expansion and contraction means to perform the expansion and contraction operation, thereby providing thrust to the press structure. In one embodiment of the present invention, the fixing mechanism includes a beam structure and a plurality of post structures fixed to the beam structure, wherein the beam structure is connected with the support body of the support rack, both ends of which are respectively fixed arms Including, the fixed arm is configured to extend to the bottom surface of the concrete warp slab to contact. The support body of the support rack includes a through hole, and the support body of the support rack is slidably covered and connected to the beam structure by the through hole.

According to an embodiment of the present invention, the demolding method using the demolding device includes the steps of providing and seating the demoulding device on the uppermost surface of the concrete warp slab, and bringing a fixed arm into contact with the bottom surface of the concrete warp slab; moving the support body of the support rack above the cavity so that the legs of the support rack are installed on the periphery of the cavity, which is moved along the beam structure by the through-hole; and driving the expansion and contraction means using the driving means to perform the expansion and contraction operation, and the press structure provides thrust to the mold to separate the mold from the concrete warp slab to expose the cavity.

1 and 2 are schematic diagrams of partial steps of forming a cavity of a warp slab in an embodiment of the present invention.
3 is a schematic plan view (as viewed from above) in which the upper cap covers the mold positioned on the warp slab in one embodiment of the present invention.
4 is a schematic bottom view (viewed from below) of a mold positioned on a warp slab according to an embodiment of the present invention.
5 to 8 are schematic diagrams of partial steps of the warp slab molding method according to an embodiment of the present invention.
9 is a flowchart of a demolding method according to an embodiment of the present invention.
10 to 15 are schematic diagrams of partial steps of a demolding method according to an embodiment of the present invention.
16 is a flowchart of a demolding method according to an embodiment of the present invention.
17 is a schematic diagram of a demoulding device according to an embodiment of the present invention.
18 and 19 are schematic diagrams of partial steps of a demolding method according to an embodiment of the present invention.
20 is a flowchart of a demolding method according to an embodiment of the present invention.
21 is a schematic diagram of a demoulding device according to an embodiment of the present invention.
22 and 23 are schematic diagrams of partial steps of a demolding method according to an embodiment of the present invention.
24 is a schematic diagram in which the demolding device is installed on a concrete warp slab according to an embodiment of the present invention.

In order to more clearly understand the characteristics, content, advantages and achievable effects of the present invention, the present invention will be described in detail below in the manner of illustrating an embodiment, in conjunction with drawings, wherein the drawings used therein include: It is only for the purpose of explaining the specification, and should not be construed as a proportionality and arrangement relationship of the accompanying drawings, and should not limit the claims of the present invention.

1, 2, and 5 to 8 are schematic diagrams of partial steps of a method for molding a concrete warp slab in an embodiment of the present invention. In one embodiment, as shown in FIG. 1 , a method of molding a concrete warp slab comprises providing an outer mold 11 and a floor mold 12 , wherein an interior space 13 is formed. To do so, the outer mold 11 is positioned above the bottom mold 12 and installed to surround the outer periphery of the bottom mold 12 .

As shown in FIG. 2 , a plurality of molds 20 forming a cavity are seated in the inner space 13 . The mold 20 includes a side wall 21 and a top wall 22 . The side wall 21 forms a cut-out structure in the upper part of the hollow cone. The upper end 211 of the side wall 21 is connected to the edge of the upper wall 22 , and extends in a direction away from the upper wall 22 and ends at the lower end 212 . In one embodiment, the extension direction of the side wall 21 is such that the diameter W2 of the lower end 212 of the mold 20 is greater than the diameter W1 of the upper end 211 of the mold 20 . ) is inclined outward with respect to

2 and 3 , in one embodiment, the upper cap 15 is installed above the upper wall 22 of the mold 20 . The upper cap 15 may include a body 150 and a plurality of handles 151 . The main body 150 is in contact with the upper wall 22 to cover it, and the handle 151 is installed on the opposite side of the side where the main body 150 faces the upper wall 22, preferably of the main body 150. located around In one embodiment, the upper cap 15 is coupled to the mold 20 by a fixing part 152 (eg, a screw) to prevent the upper cap 15 from being moved during the construction process. In one embodiment, the body 150 may have a slightly larger area than the top wall 22 by matching the shape of the top wall 22 . Accordingly, when the main body 150 is installed above the upper wall 22 , the edge of the main body 150 slightly protrudes from the outer periphery of the upper wall 22 .

Referring to FIG. 4 , it is a schematic view showing the bottom surface of the mold 20 positioned on the warp slab. 4 , the mold 20 includes a plurality of longitudinal ribs 23 formed on the inner surface 213 of the sidewall 21 of the mold 20 , for example Four longitudinal ribs 23 may be installed on the inner surface 213 , wherein each longitudinal rib 23 is installed equidistantly in the circumferential direction of the mold 20 . However, it can be understood that the embodiment of the present invention is not limited thereto, and the number of longitudinal ribs 23 can be adjusted according to actual needs. In some other embodiments, the longitudinal rib 23 may be omitted.

In one embodiment, the upper wall 22 of the mold 20 further comprises a plurality of perforations 215 installed above the at least one longitudinal rib 23 , wherein the at least one longitudinal rib 23 . The projected position on the false upper wall 22 overlaps the upper perforation 215 . In one embodiment, the number of perforations 215 corresponds to the number of longitudinal ribs 23 , that is, all perforations 215 are provided above each longitudinal rib 23 . In some other embodiments, the installation of the perforations 215 may be omitted.

In one embodiment, as shown in FIG. 5 , a method of molding a concrete warp slab includes installing a reinforcing bar cage 30 between an outer mold 11 and a mold 20 . Both ends of the reinforcing bar cage 30 include extension parts 31 that pass through the outer mold 11 and extend to the outside of the inner space 13 . The extension part 31 may have a U-shape or a hook shape.

In one embodiment, as shown in FIG. 6 , the method of molding a concrete warp slab comprises pouring concrete into the inner space 13, leaving it to stand still and waiting for it to harden, the step of forming the concrete warp slab 40 is further added. wherein each mold 20 forms a cavity 45 within the concrete warp slab 40, the cavity 45 at the top surface 41 and the bottom surface 42 of the concrete warp slab 40 communicate In the exemplary embodiment, since the concrete pouring height is substantially equal to the height of the mold 20 , the top surface 41 of the concrete warp slab 40 is installed at the same height as the upper wall 22 of the mold 20 . do. The cover body 15 is installed above the mold 20 , and in this case, since the area of the cover body 15 is larger than the area of the upper wall 22 of the mold 20 , the periphery of the cover body 15 is made of concrete. It is in contact with the top surface 41 of the warp slab 40 . Accordingly, when an operator walks on the top surface 41 of the concrete warp slab 40, the cover body 15 directly steps on the mold 20 without the operator's attention, and the mold falls or moves. It can prevent safety threats.

In one embodiment, as shown in FIG. 7 , the method of molding a concrete warp slab further includes removing the outer mold 11 and the floor mold 21 . In addition, as shown in FIG. 8 , the method of molding the concrete warp slab further includes removing the cover body 15 installed above the mold 20 . Subsequently, the method of molding the concrete warp slab further includes the step of separating the mold 20 located in the concrete warp slab 40 from the cavity 45 using a demolding method.

9 is a flowchart of a demolding method (S10) of an embodiment of the present invention. The demolding method S10 includes a step S11 of providing the concrete warp slab 40 shown in FIG. 8 . The demolding method ( S10 ) further includes a step S12 of turning over the concrete warp slab 40 so that the bottom surface 42 of the concrete warp slab 40 is seated upward. The demolding method S10 further includes a step S13 of providing a demoulding device 50 to clip the demolding device 50 to the mold 20 . The demolding method S10 further includes a step S14 of operating the driving means 55 to separate the mold 20 from the concrete warp slab 40 to expose the cavity 45 .

Referring to FIG. 10 , according to an embodiment of the present invention, the demolding device 50 includes a support rack 51 , a screw rod 52 , and a coupling part 53 . The support rack 51 is configured to stably seat the demoulding device 50 on the concrete warp slab 40 . In one embodiment, the support rack 51 includes two legs 511 and a support body 512 , and the two legs 511 are respectively connected to opposite ends of the support body 512 . After the demoulding device 50 is seated on the bottom surface 42 of the upside-down concrete warp slab 40, the support body 512 is parallel to the bottom surface 42 of the concrete warp slab 40, and the legs 511 ) is in contact with the bottom surface 42 of the concrete warp slab 40. A screw hole 513 installed through the support body 512 is provided in a substantial center of the support body 512 , and the screw rod 52 is rotatably installed in the screw hole 513 of the support body 512 , where the screw rod 52 ) of the male thread (external thread) is combined with the female thread (internal thread) of the screw hole 513 .

The coupling part 53 is installed at one end of the screw rod 52 in a separable manner, and is configured to mesh with the longitudinal rib 23 of the mold 20 . Specifically, the coupling part 53 includes a plate-shaped structure 530 . The diameter of the dish-shaped structure 530 is selected so that the dish-shaped structure 530 is drawn into the inside of the mold 20 and meshes with the longitudinal ribs 23 . A plurality of cavities 531 are provided around the plate-shaped structure 530 , and the cavities 531 have a width through which the vertical ribs 23 can pass. In addition, the coupling portion 53 includes a plurality of positioning grooves 54 formed in the dish-shaped structure 530 and alternately arranged with the cavity 53 along the periphery of the dish-shaped structure 530 . In one embodiment, the number of cavities 531 and the number of positioning grooves 54 are both equal to the number of longitudinal ribs 23 of the mold 20 , although the present invention is not limited thereto. The number of cavities 531 or the number of positioning grooves 54 may be greater than the number of longitudinal ribs 23 of the mold 20 so that the mold 20 is advantageously engaged with the longitudinal ribs 23 .

The step S13 further includes the step of seating the coupling part 53 of the demolding device 50 inside the mold 20 (FIG. 11), wherein the plate-shaped structure 530 is molded at a first preset angle. (20) Enter inside. At the first preset angle, since the cavity 531 is positioned at a position corresponding to the longitudinal rib 23 of the mold 20 , in the process of the plate-shaped structure 530 entering the mold 20 , the plate shape The longitudinal ribs 23 pass through the cavity 531 so that the structure 530 reaches below the longitudinal ribs 23 .

The step S13 further includes rotating the coupling part 53 at a second preset angle (FIG. 12). At the second preset angle, the positioning groove 54 is positioned below the longitudinal rib 23 and meshes with the longitudinal rib 23 . In one embodiment, the screw rod 52 is joined with the screw nut at the center of the coupling part 53 only after the coupling part 53 is seated inside the mold 20 to jointly form an adoption means. In addition, in the operation in which the coupling part 53 rotates from the first preset angle to the second preset angle, the coupling part 53 rotates together with the screw rod 52 . Accordingly, when the engaging portion 53 is rotated, the engaging portion 53 moves in the vertical direction at the same time, so that the positioning groove 54 completes meshing with the longitudinal rib 23 .

After the coupling part 53 is meshed with the mold 20, the mold 20 is separated from the concrete warp slab 40 to operate the driving means 55 to expose the cavity 45, and the above step S14 is performed. . In one embodiment, before the driving means 55 is operated, as shown in FIG. 13 , the driving means 55 (eg, Connect a rotary actuator or electric torque wrench, for example). Thus, after the driving means 55 is actuated, as shown in FIG. 14 , the driving means 55 rotates the screw rod 52 so that the screw rod 52 linearly moves with respect to the support rack 51 . and remove the mold 20 from the concrete warp slab 40 to expose the cavity 45.

In one embodiment, as shown in Figure 15, method S10 uses the same demoulding machine 50 to separate all molds 20 from concrete warp slabs 40 to expose all cavities 45, Steps S12 to S14 are repeated several times to complete the manufacture of the concrete warp slab 40 .

16 is a flowchart of a demoulding method (S20) of another embodiment of the present invention. The demolding method S20 provides a step S21 of providing the concrete warp slab 40 as shown in FIG. 8 . The demolding method S20 further includes a step S22 of providing the demoulding device 60 above the top surface 41 of the concrete warp slab 40 . Steps S23 and S24 of the demolding method S20 will be described below.

Referring to FIG. 17 , in one embodiment of the present invention, the demolding device 60 includes a body 61 , an impact-resistant structure 63 , a plurality of elongated engaging portions 62 and an impact portion 66 . The body 61 has a dish-shaped structure and is provided with an upper surface 611 and a lower surface 612 opposite to the upper surface 611 . The elongated engaging portion 62 may be fixedly connected to the lower surface 612 of the body 61 , and the elongated engaging portion 62 may extend in a direction perpendicular to the lower surface 612 . The extended length of the elongated meshing portion 62 may be smaller than the height of the mold 20 . The shock-resistant structure 63 is installed above the upper surface 611 of the main body 61 to protrude from the upper surface 611 of the main body 61 . The impact part 66 is installed separately from the body 61 , and provides an impact force to the impact-resistant structure 63 . In order for the operator to conveniently operate the demolding device 60, a plurality of handles 64 may be installed on the body 61 of the demoulding device 60, and the handle 67 may be connected to the impact unit 66. may be In addition, the demolding device 60 may include a plurality of position limiting structures 65 connected to the periphery of the body 61 .

In one embodiment, as shown in FIG. 18 , in step S22 , the body 61 of the demolding device 60 is seated on the top surface 41 of the concrete warp slab 40 like the elongated meshing part 62 . It further includes a step S23 of making, wherein the elongated engaging portion 62 is installed through the perforation 215 of the mold 20 and is in contact with the upper end of the vertical rib 23 located below the perforation 215 . In this case, the height of the position limiting structure 65 is slightly higher than the top surface 41 of the warp slab 40 .

After the elongated meshing portion 62 is meshed with the mold 20, the demolding method S20 separates the mold 20 from the concrete warp slab 40 to expose the cavity 45. The method further includes step S24 of impacting the impact-resistant structure 63 by using it. Specifically, as shown in FIG. 18 , the impact unit 66 falls by gravity from above the main body 61 using an artificial or mechanical method to impact the impact-resistant structure 63 . By its impact external force action, as shown in FIG. 19 , the mold 20 is separated from the concrete warp slab 40 to expose the cavity 45 . It should be noted that when the main body 61 is approached to the perforation 45, the position limiting structure 65 will change the position of the top surface 41 of the warp slab 40 to the top surface 41 of the concrete warp slab 40. By moving to abutment, the main body 61 is prevented from entering the perforation (45). Since the body 61 stays on the top surface 41 of the concrete warp slab 40, the mold 20 is separated from the elongated engaging portion 62 of the demoulding device 60 while naturally falling according to gravity.

20 is a flowchart of a demoulding method (S30) of another embodiment of the present invention. The demolding method S30 includes a step S31 of providing a concrete warp slab 40 as shown in FIG. 8 . The demolding method S30 further includes a step S32 of providing the demoulding device 70 above the uppermost surface 41 of the concrete warp slab 40 . Step S33 of the demolding method S30 will be described below.

Referring to FIG. 21 , the demolding device 70 includes a support rack 71 , a fixing mechanism 72 , and a press structure 73 . The support rack 71 includes a support body 711 and a plurality of legs 712 . The leg 712 surrounds the support body 711 and is fixedly connected to the support body 711 . To increase the contact area and friction force between the leg 712 and the concrete warp slab 40, and to protect the concrete warp slab 40 from destruction due to pressure, the support structure 713 is at the bottom of the leg 712. can be installed. The support body 711 includes telescopic means 714 (eg, a hydraulic cylinder). In addition, the support body 711 further includes a through hole 715 . The press structure 73 is connected below the stretching means 714 . The bottom of the press structure 73 is provided with a press surface that contacts the top wall 22 of the mold 20 .

21 and 22 , the fixing mechanism 72 is connected to the support body 71 to fix the support body 71 above the uppermost surface 41 of the concrete warp slab 40 . In one embodiment, the securing mechanism 72 includes a beam structure 721 and one or more post structures 725 . The column structure 725 connects the bottom surfaces of the beam structures 721 , and the beam structures 721 are configured to be supported above the top surface 41 of the concrete warp slab 40 . The through hole 715 of the main body 711 is installed to cover the beam structure 721 , and can be moved with respect to the beam structure 721 .

In one embodiment, the securing mechanism 72 further includes one or more rollers 726 installed at the bottom of the post structure 725 . After the demoulding device 70 is seated on the top surface 41 of the concrete warp slab 40, the column structure 725 can move on the top surface 41 of the concrete warp slab 40 through the rollers 726. Therefore, since the fixing mechanism 72 can slide on the top surface 41 of the concrete warp slab 40 together with the support body 71 installed thereon, the situation in which a person has to carry it by hand is reduced.

In one embodiment, as shown in FIGS. 21 and 22 , the fixation mechanism 72 further includes two fixation arms 722 . The fixed arm 722 is configured to extend and abut to the bottom surface 42 of the concrete warp slab 40 to increase the overall stability of the demoulding device 70 . Specifically, each stationary arm 722 includes a vertical extension 723 and a transverse extension 724 . The vertical extension 723 is connected to one end of the beam structure 721 and vertically extends downward. The extension length of the beam structure 721 is, after the fixing mechanism 72 is seated above the top surface 41 of the concrete warp slab 40, the lower end of the vertical extension 723 is the bottom of the concrete warp slab 40 It is chosen to be lower than the face 42 . The transverse extension 724 is connected to the other end of the vertical extension 723 opposite to the beam structure 721 and extends in parallel with the beam structure 721 . Therefore, as shown in FIG. 21 , after the demolding device 70 is installed above the top surface 41 of the concrete warp slab 40, it is in contact with the bottom surface 42 of the concrete warp slab 40, and the demoulding device To increase the stability of 70, the beam structure 721, the vertical extension 723 and the transverse extension 724 together constitute a U-shaped clamping structure.

In one embodiment, as shown in FIG. 22 , the demolding device 70 further comprises a driving means 74 . The driving means 74 is connected to the expansion and contraction means 714 of the support body 711 through the pipeline 741 , and drives the expansion and contraction means 714 to perform the expansion and contraction operation to provide thrust to the press structure 73 . do. The driving means 74 can drive the stretching operation of the stretching means 714 in a variety of suitable ways. For example, the driving means 74 may comprise a compressor and the telescopic means 714 may comprise a hydraulic cylinder, and the driving means 74 may include a pipe to drive the telescopic movement of the telescoping means 714 . A liquid pressurized via line 741 is provided to telescoping means 714 .

In one embodiment, after demolding device 70 is installed above top surface 41 of concrete warp slab 40 , support rack 71 is not aligned with cavity 45 . In order to solve this problem, the step S32 is performed by moving the support body 711 of the support rack 71 above the cavity 45 along the beam structure 721 by the through hole 715 to the support rack 71 . The method further includes allowing the legs 712 of the body to be installed around the cavity 45 . Thereby, the operator can easily move the support rack 71 above the cavity 45, and there is no need to laboriously transport the support rack 71.

After completing the installation of the demoulding device 70, the demoulding method S30 is performed by using the driving means 74 of the demoulding device 70 to remove the mold 20 downward from the concrete warp slab 40. Step S33 of driving the means 714 is further included. In one embodiment, as shown in FIG. 23 , the driving means 74 drives the expansion and contraction means 714 to perform the expansion and contraction operation, so that the press surface of the press structure 73 is in contact with the mold 20 and thrust is provided to propel the mold 20 . By the propulsion of the press structure 73 , the mold 20 is separated from the concrete warp slab 40 .

In one embodiment, after completing step S33, the operator further moves the support rack 71 along the beam structure 721 so that the support rack 71 is in the same transverse direction (parallel to the beam structure 721 extension direction). After reaching the position of the other mold 20 in the array, step S33 may be repeated to remove the other mold 20 . After all of the molds 20 in the same transverse direction have completed the demolding process, the operator pushes the fixing mechanism 72 along the longitudinal direction, so that the support rack 71 is one of the plurality of molds 20 in a different transverse arrangement. By repeating step S33 to reach the position of , each mold 20 can be removed one by one. Therefore, by the installation of the fixing mechanism 72 , the operator can effectively complete the demoulding process of removing all the molds 20 of the concrete warp slab 40 .

It should be noted that the fixing mechanism for cooperating the positioning of the support rack 71 in the embodiment of the present invention is not limited to the form of the above embodiment, and may have various changes. For example, in the embodiment shown in FIG. 24 , the demolding device 70a includes a holding mechanism 75 . The fastening mechanism 75 includes a cable 751 and a plurality of locks 752 . The locking part 752 may be a hook or a buckle, and is connected to both ends of the cable 751 . After the demoulding device 70a is installed on the top surface 41 of the concrete warp slab 40, the cable 751 passes through the through hole 715 of the support rack 71, and the locking part 752 is the reinforcing bar cage 30 ) is connected to the extension (31). In one embodiment, the demolding device 70a includes a plurality of installed between the cable 751 and the concrete warp slab 40 to prevent the cable 751 or the concrete warp slab 40 from being destroyed due to friction. It further includes a protective pad 753 .

As used herein, the terms “a” or “an” are used to describe the elements and components of the present invention. This terminology is for convenience of description and to provide a basic concept of the present invention. This description is to be understood as including one or more than one, and includes the plural even when indicated in the singular, unless clearly indicated otherwise. When used in conjunction with "comprising" in the claims, the term "a" means one or more than one. In addition, the term “or” herein has the same meaning as “and/or”.

Unless otherwise specified, for example, “above”, “below”, “top”, “left”, “right”, “bottom”, “body”, “base”, “vertical”, “horizontal”; Spatial descriptions such as "side", "higher", "lower", "upper", "upper" and "lower side" are intended to indicate directions indicated in the drawings. The spatial description used herein is for illustrative purposes only, and the actual implementation of the structures described herein may be disposed in space in any relative orientation, and such limitations do not change the advantages of the embodiments of the present invention. should understand For example, in the description of some embodiments, when it is described that one component is installed in another component, a situation in which one component is directly installed in another component (eg, in actual contact with the latter component) and Includes situations where another component is between one component and another component.

As used herein, the terms “approximately”, “substantially”, “substantially” and “about” are used to describe and account for subtle changes. When combined with an event or situation, the term may refer to a situation in which the event or situation clearly occurs and a situation very close to the situation in which the event or situation occurs.

The above embodiments are only for explaining the technical spirit and features of the present invention, and the purpose is to enable those skilled in the art to understand and implement the contents of the present invention accordingly, thereby claiming the present invention The scope cannot be limited, and equivalent changes or modifications made in accordance with the spirit disclosed in the present invention should still fall within the scope of the claims of the present invention.

11: Outer mold
12: bottom mold
13: interior space
15: upper cap
20: mold
21: side wall
22: upper wall
23: vertical rib
30: rebar cage
31: extension
40: concrete warp slab
41: top surface
42: bottom surface
45: joint
50: demolding device
51: support rack
52: screw rod
53: coupling part
54: positioning groove
55: driving means
60: demolding device
61: body
62: long shape engagement portion
63: shock-resistant structure
64: handle
65: position limit structure
66: impact part
67: handle
70: demolding device
70a: demolding device
71: support rack
72: fixture
73: press structure
74: driving means
75: fixture
150: body
151: handle
152: fixed part
211: top
212: bottom
213: inner surface
215: perforation
511: leg
512: support body
513: screw hole
530: plate-shaped structure
531: cavity
611: upper surface
612: if
711: support body
712: leg
713: support structure
714: telescoping means
715: through hole
721: beam structure
722: fixed arm
723: vertical extension
724: transverse extension
725: column structure
726: roller
741: pipeline
751: cable
752: lock
753: protective pad
S10: How
S11, S12, S13, S14: Step
S20: How
S21, S22, S23, S24: Step
S30: How
S31, S32, S33: Step

Claims (12)

A mold formed in the cavity of the concrete warp slab is separated from the cavity, and the concrete warp slab includes a top surface and a bottom surface corresponding to the top surface, the cavity communicates with the top surface and the bottom surface, and a lower end of the mold In the demolding device having a diameter greater than the top diameter of the mold and having an inner surface including a plurality of vertical ribs,
The demolding device is
a support rack comprising a plurality of legs and a support body, the plurality of legs being fixed to the support body, the support body including a screw hole;
a screw rod rotatably installed in the screw hole of the support body and having a male screw coupled to a female screw of the screw hole;
a coupling part installed at one end of the screw rod and configured to mesh with the plurality of longitudinal ribs of the mold; and
and a driving means connected to the other end of the screw rod to provide torque to the screw rod. The method of claim 1,
The mold is provided with an annular sidewall, the plurality of vertical ribs are formed on the annular sidewall, the coupling portion includes a dish-shaped structure, and a plurality of cavities corresponding to the plurality of vertical ribs are disposed around the dish-shaped structure. A demoulding device provided with. 3. The method of claim 2,
The coupling portion includes a plurality of positioning grooves formed therein, and the plurality of positioning grooves and the plurality of cavities are alternately arranged along the periphery of the plate-shaped structure. A mold formed in the cavity of the concrete warp slab is separated from the cavity, and the concrete warp slab includes a top surface and a bottom surface corresponding to the top surface, the cavity communicates with the top surface and the bottom surface, and a lower end of the mold In the demolding device having a diameter greater than the top diameter of the mold, an upper wall is provided, and the upper wall includes a plurality of perforations,
main body;
an impact-resistant structure positioned above the upper surface of the body;
a plurality of elongated engaging portions fixed to the lower surface of the main body and installed through the plurality of perforations of the upper wall of the mold; and
A demoulding device including an impact unit for providing an impact force to the impact-resistant structure. A mold formed in the cavity of the concrete warp slab is separated from the cavity, and the concrete warp slab includes a top surface and a bottom surface corresponding to the top surface, the cavity communicates with the top surface and the bottom surface, and a lower end of the mold In the demolding device whose diameter is larger than the top diameter of the mold,
a support rack comprising a plurality of legs and a support body, the support body including telescoping means, the plurality of legs being fixed to the support body;
a fixing mechanism connected to the support body and fixing the support body to the uppermost surface of the concrete warp slab;
a press structure comprising a press surface contacting the mold to provide thrust to the mold, the press structure being connected with the telescopic means of the support body of the support rack; and
and a driving means connected to the expansion and contraction means of the support body and configured to drive the expansion and contraction means to perform expansion and contraction operations to provide thrust to the press structure. 6. The method of claim 5,
The fixing mechanism includes a beam structure and a plurality of column structures fixed to the beam structure, wherein the beam structure is connected with the support body of the support rack, and both ends thereof are respectively up to the bottom surface of the concrete warp slab A demolding device comprising a stationary arm configured to extend and abut against. 7. The method of claim 6,
The support body of the support rack includes a through hole, and the support body of the support rack is slidably covered and connected to the beam structure by the through hole. 6. The method of claim 5,
The concrete warp slab includes a plurality of U-shaped reinforcing bars or hook-shaped reinforcing bars extending from the periphery of the concrete warp slab, and the fixing mechanism passes through the support body of the support rack and has both ends of the plurality of U-shaped reinforcing bars, respectively Or a demoulding device comprising a cable fixed to at least one of the hook-shaped reinforcing bars. a top surface and a bottom surface corresponding to the top surface; , providing a concrete warp slab having an inner surface including a plurality of longitudinal ribs;
turning over the concrete warp slab so that the bottom surface of the concrete warp slab is seated upward;
Providing and seating the demoulding device according to claim 1 above the bottom surface;
inserting the coupling part into the mold to engage the plurality of longitudinal ribs; and
and actuating the drive means to rotate the screw rod so that the screw rod moves in a straight line relative to the support rack and separates the mold from the concrete warp slab to expose the cavity. a top surface and a bottom surface corresponding to the top surface; , providing a concrete warp slab having an inner surface including a plurality of longitudinal ribs;
Providing and seating the demoulding device according to claim 3 above the bottom surface;
entering the mold at a first preset angle such that the plurality of vertical ribs pass through the plurality of cavities;
rotating the plate-shaped structure to engage the plurality of positioning grooves at a second preset angle; and
and actuating the drive means to rotate the screw rod so that the screw rod moves in a straight line relative to the support rack and separates the mold from the concrete warp slab to expose the cavity. a top surface and a bottom surface corresponding to the top surface; providing a concrete warp slab having an upper wall and a side wall, the upper wall including a plurality of perforations, and an inner surface of the side wall including a plurality of vertical ribs installed to correspond to the plurality of perforations;
Seating the demolding device according to claim 4 above the uppermost surface;
installing the elongated engaging portion through the mold to contact the plurality of vertical ribs; and
Separating the mold from the concrete warp slab and impacting the impact-resistant structure using the impact part to expose the cavity. a top surface and a bottom surface corresponding to the top surface; providing a concrete warp slab;
providing and seating the support rack of the demoulding device according to claim 8 above the top surface of the concrete warp slab, and the fixing arm is in contact with the bottom surface of the concrete warp slab;
moving the support body of the support rack above the cavity, along the beam structure by the through-hole, such that the plurality of legs of the support rack are installed around the cavity; and
using the driving means to drive the expansion and contraction means to perform a stretching operation, and the press structure provides thrust to the mold, separating the mold from the concrete warp slab and exposing the cavity demolding method.

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