CN114102833B

CN114102833B - Apparatus and method for releasing a mold from a grid plate

Info

Publication number: CN114102833B
Application number: CN202010894886.4A
Authority: CN
Inventors: 尹衍樑; 吕绍国; 王振宋
Original assignee: Ruentex Engineering and Construction Co Ltd
Current assignee: Ruentex Engineering and Construction Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2023-08-04
Anticipated expiration: 2040-08-31
Also published as: CN114102833A

Abstract

The present disclosure relates to providing an apparatus and method for disengaging a mold from a grid plate. The apparatus comprises: support frame, screw rod, fastener and actuating mechanism. The screw rod is rotatably arranged in the screw hole of the supporting frame. The coupler is disposed at one end of the screw and is configured to engage the mold. The driving mechanism is connected with the other end of the screw rod to provide torsion to the screw rod.

Description

Apparatus and method for releasing a mold from a grid plate

Technical Field

The present disclosure is directed to an apparatus and method for disengaging a mold from a grid plate.

Background

With the vigorous development of the emerging technologies, the application of semiconductors is wide, and the demands are increasing, so that the emerging technologies such as artificial intelligence, internet of vehicles/internet of things, fittech block chain or cloud medical treatment need to use semiconductor products (e.g. chips) for rapid and complex operation. Therefore, in order to meet the demands of a large number of semiconductor products, the demands of building semiconductor factories are also increasing. The amount of dust in the surrounding environment is strictly controlled during the manufacturing process of semiconductors, so as not to damage the precision and reliability of the semiconductor products. The clean room is built by using a grid beam perforated floor (grid plate) structure, dust is discharged out of the clean room by positive pressure through grid plate perforation, clean air is filtered and returned to enter the clean room again, and the clean room is a design mode commonly used in semiconductor plants at present.

The common grid plate manufacturing mode can be divided into two modes of on-site pouring and precast in a precast field. However, whether cast in place or pre-cast, a number of molds are provided within the grid and concrete slurry is poured between the inner mold and the outer mold surrounding the grid reinforcement cage to form the grid and perforations therein. One of the conventional methods is to keep the mold in the grid plate after the grid plate is formed, that is, the grid plate is not demolded from the mold located therein, so that a certain number of molds which cannot be reused are required for each unit of grid plate, resulting in an increase in manufacturing cost. Another conventional method is to use a conventional striking tool, such as a hammer, to strike the top of the mold after the grid plate is formed to disengage the mold from the concrete surface in the perforations in contact therewith, thereby allowing the mold to be reused. However, the conventional knocking mode is difficult to accurately control knocking points and knocking forces, so that the concrete surface of the grid plate is easily damaged and/or the mold is easily deformed or damaged.

Disclosure of Invention

Accordingly, in order to solve the above-described problems, an embodiment of the present invention provides a demolding apparatus capable of separating a mold of a hole formed in a concrete lattice plate from the hole, rapidly and without damaging the surface of the concrete lattice plate and without damaging the mold. The concrete grid includes a top surface and a bottom surface opposite the top surface, the holes communicating the top surface and the bottom surface. The diameter of the lower end of the die is larger than that of the upper end of the die. 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 thereon.

In the above embodiment, the demolding apparatus includes a support frame, a screw, a bonding member, and a driving mechanism. The support frame comprises a plurality of support legs and a support body. A plurality of legs are secured to a support body that includes screw holes therein. The screw rod is rotatably arranged in the screw hole of the supporting body. The external thread of the screw rod is matched with the internal thread of the screw hole. The coupling member is disposed at one end of the screw and is configured to engage with a longitudinal rib of the mold, and the driving mechanism is coupled to the other end of the screw and provides torque to the screw. In one embodiment of the invention, the coupling comprises a disc-shaped structure having a peripheral edge with grooves relative to the longitudinal ribs, the disc-shaped structure comprising detents formed thereon, wherein the detents alternate with the grooves along the peripheral edge of the disc-shaped structure.

According to an embodiment of the present invention, a demolding method using the demolding apparatus described above includes: turning the concrete lattice plate to enable the bottom surface of the concrete lattice plate to be upwards placed; providing and placing the above-described demolding apparatus above the bottom surface of the concrete lattice panel; placing the binder into a mold to engage the longitudinal ribs; and starting the driving mechanism to rotate the screw rod and enable the screw rod to perform linear motion relative to the supporting frame, so as to separate the mould from the concrete grid plate and expose the holes. In one embodiment of the present invention, the engaging step of the engaging member with the longitudinal rib comprises, entering the disc-shaped structure into the mold at a first predetermined angle and passing the longitudinal rib through the groove; then, the disk-shaped structure is rotated to engage with the positioning groove at a second predetermined angle.

In another embodiment of the present invention, a demolding apparatus includes a body, an impacted structure, a plurality of elongated engagement members, and an impact member. The impacted structure is located above the upper surface of the body. An elongated engagement member is fixedly secured to the lower surface of the body and is disposed through and in the plurality of perforations in the top wall of the mold. The impact member is used for providing impact force to the impacted structure.

According to an embodiment of the present invention, a demolding method using the demolding apparatus described above includes: providing and placing the above-described stripping apparatus over a top surface of a concrete grid; threading the elongated engagement member into the mold and against the longitudinal ribs; and impacting the impacted structure with the impact member to separate the mold from the concrete lattice plate and expose the holes.

In yet another embodiment of the present invention, a demolding apparatus includes a support frame, a securing mechanism, a pushing structure, and a driving mechanism. The support frame includes a plurality of stabilizer blades and support body. The support body includes a telescoping mechanism therein, and a plurality of legs are secured to the support body. The securing mechanism is connected to the support body and is used to secure the support body to the top surface of the concrete lattice plate. The biasing structure includes a biasing surface to contact a mold and provide a biasing force to the mold. The pushing structure is connected with the telescopic mechanism of the supporting body of the supporting frame. The driving mechanism is connected with the telescopic mechanism of the supporting body and drives the telescopic mechanism to perform telescopic action so as to provide thrust to the pushing structure. In one embodiment of the present invention, the fixing mechanism includes: a beam structure and a plurality of column structures are fixed to the beam structure, the beam structure is connected with the support body of the support frame, and both ends thereof respectively comprise a fixing arm configured to extend to and abut against the bottom surface of the concrete lattice plate. The support body of the support frame includes a through hole therein, and the support body of the support frame is slidably sleeved on the beam structure via the through hole.

According to an embodiment of the present invention, a demolding method using the demolding apparatus includes: providing and placing the above-described demolding apparatus above a top surface of the concrete lattice plate, with the securing arm abutting a bottom surface of the concrete lattice plate; moving the support body of the support frame to the position above the hole through the through hole along the beam structure, and arranging the support legs of the support frame around the hole; and driving the telescopic mechanism to perform telescopic action by utilizing the driving mechanism, so that the pushing and pressing structure provides pushing force to the mould, and the mould is separated from the concrete grid plate and the holes are exposed.

Drawings

Fig. 1 and 2 are schematic views showing a part of steps for forming holes of a grid plate according to an embodiment of the invention.

FIG. 3 shows a schematic top view of a top cover covering a mold in a grid plate according to an embodiment of the invention.

Fig. 4 shows a schematic bottom view of a mold in a grid plate according to an embodiment of the invention.

Fig. 5-8 are schematic diagrams showing some of the steps of the grid plate molding method in one embodiment of the invention.

Fig. 9 shows a flow chart of a demolding method of an embodiment of the invention.

Fig. 10-15 show schematic views of some steps of a demolding method according to an embodiment of the invention.

Fig. 16 shows a flow chart of a demolding method of an embodiment of the present invention.

Fig. 17 shows a schematic view of a demolding apparatus of an embodiment of the present invention.

Fig. 18 and 19 are schematic diagrams showing partial steps of a demolding method according to an embodiment of the present invention.

FIG. 20 shows a flow chart of a demolding method of an embodiment of the present invention.

Fig. 21 shows a schematic view of a demolding apparatus of an embodiment of the present invention.

Fig. 22-23 show schematic views of partial steps of a demolding method of an embodiment of the invention.

Fig. 24 shows a schematic view of a demolding apparatus according to an embodiment of the present invention disposed on a concrete lattice plate.

Detailed Description

For a clearer understanding of the features, aspects, and advantages of the present invention, as well as the advantages and capabilities thereof, the present invention will be more fully described in the following detailed description of the embodiments with reference to the accompanying drawings, in which the principles of the invention are illustrated and described in the drawings, and therefore should not be construed as limiting the claims of the present invention with respect to the scale and arrangement of the drawings.

Figures 1, 2, 5-8 show schematic views of part of the steps of a method of moulding a concrete lattice according to an embodiment of the invention. In one embodiment, as shown in fig. 1, a method of molding a concrete lattice plate includes providing an outer mold 11 and a bottom mold 12, wherein the outer mold 11 is positioned above the bottom mold 12 and around an outer periphery of the bottom mold 12 to define an interior space 13.

As shown in fig. 2, a plurality of molds 20 for forming holes are placed in the inner space 13. The mold 20 includes side walls 21 and a top wall 22. The side walls 21 form a truncated hollow cone-shaped structure. The upper end 211 of the side wall 21 joins the edge of the top wall 22 and extends away from the top wall 22 to terminate at a lower end 212. In one embodiment, the direction of extension of the side walls 21 is inclined outwardly relative to the top wall 22 such that the diameter W2 of the lower end 212 of the die 20 is greater than the diameter W1 of the upper end 211 of the die 20.

Referring to fig. 2 and 3, in one embodiment, an upper cover 15 is disposed above the top wall 22 of the mold 20. The upper cover 15 may include a body 150 and a plurality of handles 151. The body 150 contacts and covers the top wall 22, and the handle 151 is provided on the opposite side of the body 150 facing the top wall 22, preferably at the periphery of said body 150. In one embodiment, the cover 15 is coupled to the mold 20 by fasteners 152 (e.g., bolts) to prevent the cover 15 from being moved during the construction process. In one embodiment, the body 150 may match the shape of the top wall 22 and have an area slightly larger than the top wall 22. In this way, when the body 150 is disposed above the top wall 22, the edge of the body 150 slightly protrudes beyond the outer edge of the top wall 22.

Referring to fig. 4, a bottom view of the mold 20 in the grid plate is shown. In the embodiment of fig. 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 disposed on the inner surface 213 of the mold 20, wherein each longitudinal rib 23 is disposed equidistantly in the circumferential direction of the mold 20. However, it will be appreciated that the embodiments of the present invention are not limited thereto, and the number of longitudinal ribs 23 may be adjusted according to actual needs. In some other embodiments, the longitudinal ribs 23 may be omitted.

In one embodiment, the top wall 22 of the mold 20 further includes a plurality of through holes 215 disposed above the at least one longitudinal rib 23, wherein the projection position of the at least one longitudinal rib 23 on the top wall 22 overlaps the through holes 215 above. In one embodiment, the number of perforations 215 corresponds to the number of longitudinal ribs 23, i.e., each longitudinal rib 23 has perforations 215 disposed above it. In some other embodiments, the perforations 215 are omitted.

In one embodiment, as shown in fig. 5, the method of molding a concrete lattice plate includes providing a reinforcement cage 30 between the outer mold 11 and the mold 20. The reinforcement cage 30 includes extensions 31 at both ends that extend beyond the outer mold 11 and out of the interior space 13. The extension 31 may be U-shaped or hook-shaped.

In one embodiment, as shown in FIG. 6, the method of molding the concrete lattice further comprises pouring concrete in the interior space 13 and standing still for curing thereof to form the concrete lattice 40, wherein each mold 20 forms a hole 45 in the concrete lattice 40, the hole 45 communicating the top surface 41 and the bottom surface 42 of the concrete lattice 40. In the exemplary embodiment, the height of the concrete placement is substantially equal to the height of the mold 20, such that the top surface 41 of the concrete lattice 40 is flush with the top wall 22 of the mold 20. The cover 15 is arranged above the mould 20, in which case the peripheral edge of the cover 15 will abut against the top surface 41 of the concrete lattice 40, since the area of the cover 15 is larger than the area of the top wall 22 of the mould 20. Thereby, when the constructor walks on the top surface 41 of the concrete lattice plate 40, the cover 15 can prevent the constructor from directly stepping on the mold 20, causing the mold to drop or shift, thereby endangering the constructor.

In one embodiment, as shown in fig. 7, the method of molding the concrete lattice plate further comprises removing the outer mold 11 and the bottom mold 21. And, as shown in fig. 8, the method of molding the concrete lattice plate further includes removing the cover 15 disposed above the mold 20. The method of molding the concrete grid then further includes separating the mold 20 located in the concrete grid 40 from the holes 45 using a demolding process.

Fig. 9 shows a flowchart of a demolding method S10 according to an embodiment of the present invention. The demolding method S10 includes a step S11 of providing a concrete lattice plate 40 as shown in fig. 8. The demolding method S10 further includes a step S12 of turning the concrete lattice 40 so that the bottom surface 42 of the concrete lattice 40 is placed upward. The demolding method S10 further includes a step S13 of providing a demolding device 50 and engaging the demolding device 50 with the mold 20. The demolding method S10 further comprises step S14, activating the driving mechanism 55 to separate the mold 20 from the concrete grid 40 and expose the holes 45.

Referring to fig. 10, a demolding apparatus 50 according to an embodiment of the present invention includes a supporting frame 51, a screw 52, and a bonding member 53. The support bracket 51 is configured to stably place the demolding apparatus 50 on the concrete lattice 40. In one embodiment, the support frame 51 includes two legs 511 and a support body 512, and the two legs 511 are respectively connected to two ends of the support body 512. After the demolding apparatus 50 is placed on the bottom surface 42 of the flipped concrete lattice plate 40, the support body 512 is parallel to the bottom surface 42 of the concrete lattice plate 40, and the legs 511 are abutted against the bottom surface 42 of the concrete lattice plate 40. The support body 512 has a screw hole 513 penetrating therethrough at a substantially center thereof, and the screw 52 is rotatably disposed in the screw hole 513 of the support body 512, wherein an external thread of the screw 52 is engaged with an internal thread of the screw hole 513.

The coupling 53 is detachably provided at one end of the screw 52 and is configured to engage with the longitudinal rib 23 of the mold 20. Specifically, the bonding element 53 comprises a disc-shaped structure 530. The diameter of the disc-shaped structure 530 is selected such that the disc-shaped structure 530 can extend into the interior of the mold 20 and engage the longitudinal ribs 23. The periphery of the disc-shaped structure 530 has a plurality of grooves 531, the grooves 531 having a width allowing the longitudinal ribs 23 to pass. In addition, the coupling 53 includes a plurality of positioning grooves 54 formed on the disc-shaped structure 530 and alternately arranged with the grooves 531 along the circumference of the disc-shaped structure 530. In an embodiment, the number of grooves 531 and the number of positioning grooves 54 are equal to the number of longitudinal ribs 23 of the mold 20, but the invention is not limited thereto. The number of grooves 531 or the number of positioning grooves 54 may be greater than the number of longitudinal ribs 23 of the mold 20 to facilitate engagement of the mold 20 with the longitudinal ribs 23.

The step S13 further comprises placing the coupling member 53 of the demolding apparatus 50 into the mold 20 (fig. 11), wherein the disk-shaped structure 530 enters the interior of the mold 20 at a first predetermined angle. At the first predetermined angle described above, the position of the groove 531 relative to the longitudinal rib 23 of the mould 20, and therefore the longitudinal rib 23 passes through the groove 531 during entry of the disc-shaped structure 530 into the mould 20, allowing the disc-shaped structure 530 to reach below the longitudinal rib 23.

The step S13 further includes rotating the coupling member 53 to a second predetermined angle (fig. 12). At the second predetermined angle, the positioning groove 54 is located below the longitudinal rib 23 and engages with the longitudinal rib 23. In one embodiment, the screw 52 is engaged with the nut at the center of the coupler 53 after the coupler 53 is placed inside the mold 20 to collectively form the capturing mechanism. In the operation of rotating the coupling 53 from the first predetermined angle to the second predetermined angle, the coupling 53 is rotated together with the screw 52. Thus, when the coupling member 53 is rotated, the coupling member 53 is simultaneously moved in the vertical direction, thereby completing the engagement of the positioning groove 54 with the longitudinal rib 23.

After the engaging member 53 is engaged with the die 20, the above step S14 is performed: actuating the drive mechanism 55 separates the mold 20 from the concrete grid 40 and exposes the holes 45. In one embodiment, prior to activating the drive mechanism 55, as shown in FIG. 13, the drive mechanism 55 (e.g., a rotary actuator or an electric torque wrench) is attached to the opposite end of the screw 52 from the end to which the coupler 53 is attached. As a result, when the driving mechanism 55 is started, as shown in fig. 14, the driving mechanism 55 rotates the screw 52 and moves the screw 52 linearly with respect to the support frame 51, thereby separating the mold 20 from the concrete grid 40 and exposing the hole 45.

In one embodiment, the method S10 repeats steps S12-S14 multiple times to separate all of the molds 20 from the concrete lattice 40 and expose all of the holes 45 using the same demolding apparatus 50, thereby completing the fabrication of the concrete lattice 40, as shown in FIG. 15.

Fig. 16 shows a flowchart of a demolding method S20 according to another embodiment of the present invention. The demolding method S20 includes step S21 of providing a concrete lattice plate 40 as shown in fig. 8. The demolding method S20 further comprises a step S22 of providing a demolding device 60 above the top surface 41 of the concrete lattice 40. Steps S23 and S24 of the demolding method S20 will be described later.

Referring to fig. 17, in one embodiment of the present invention, a demolding apparatus 60 includes a body 61, an impacted structure 63, a plurality of elongated engagement members 62, and an impact member 66. The body 61 is a disc-shaped structure and has an upper surface 611 and a lower surface 612 opposite the upper surface 611. The elongated engagement member 62 is fixedly coupled to the lower surface 612 of the body 61, and the elongated engagement member 62 may extend in a direction perpendicular to the lower surface 612. The elongated engagement member 62 may extend less than the height of the die 20. The impacted structure 63 is disposed above the upper surface 611 of the body 61 and protrudes from the upper surface 611 of the body 61. The impact member 66 is disposed apart from the body 61 and is configured to provide an impact force to the impacted structure 63. A plurality of handles 64 may be provided on the body 61 of the stripper apparatus 60, and handles 67 may also be attached to the impact member 66 to facilitate the operation of the stripper apparatus 60 by personnel. In addition, the demolding apparatus 60 may include a plurality of limiting structures 65 connected to the periphery of the body 61.

In one embodiment, as shown in fig. 18, the step S22 further includes a step S23 of placing the body 61 of the demolding apparatus 60 together with the elongated engagement member 62 on the top surface 41 of the concrete lattice 40, wherein the elongated engagement member 62 is inserted through the through holes 215 of the mold 20 and abuts against the upper ends of the longitudinal ribs 23 located below the through holes 215. At this time, the height of the stopper 65 is slightly higher than the top surface 41 of the grid plate 40.

After the elongated engagement member 62 engages the mold 20, the demolding method S20 further includes a step S24 of impacting the impacted structure 63 with the impact member 66 to separate the mold 20 from the concrete lattice 40 and expose the holes 45. Specifically, as shown in fig. 18, the striking member 66 falls down from above the body 61 by gravity and strikes the striking structure 63 by manual or mechanical means. Under the impact force, as shown in fig. 19, the mold 20 is separated from the concrete lattice 40 to expose the holes 45. Notably, as the body 61 approaches the perforations 45, the spacing structure 65 will move from a position that is closer to the top surface 41 of the concrete grid 40 to abut the top surface 41 of the concrete grid 40, thereby preventing the body 61 from entering the perforations 45. As the body 61 will rest on top surface 41 of the concrete grid 40, the mold 20 will naturally fall with gravity and separate from the elongated engagement members 62 of the stripper apparatus 60.

Fig. 20 shows a flowchart of a demolding method S30 according to another embodiment of the present invention. The demolding method S30 includes step S31 of providing a concrete lattice plate 40 as shown in fig. 8. The demolding method S30 further comprises a step S32 of providing a demolding apparatus 70 above the top surface 41 of the concrete lattice 40. Step S33 of the demolding method S30 will be described later.

Referring to fig. 21, the demolding apparatus 70 includes a support frame 71, a fixing mechanism 72, and a pressing structure 73. The support frame 71 includes a support body 711 and a plurality of legs 712. The leg 712 surrounds the support body 711 and is fixedly attached to the support body 711. Pad structures 713 may be provided at the bottom of the feet 712 to increase the contact area and friction between the feet 712 and the concrete lattice 40 and to protect the concrete lattice 40 from damage due to pressure. The support body 711 includes a telescopic mechanism 714 (e.g., a hydraulic cylinder) therein. In addition, the support body 711 further includes a through hole 715 thereon. The pushing structure 73 is connected below the telescopic mechanism 714. The bottom of the pushing structure 73 has a pushing surface for contacting the top wall 22 of the mold 20.

Referring to fig. 21 and 22 simultaneously, a fixing mechanism 72 is connected to the support body 71 and serves to fix the support body 71 above the top surface 41 of the concrete lattice plate 40. In one embodiment, the securing mechanism 72 includes a beam structure 721 and one or more post structures 725. The column structure 725 joins the bottom surface of the beam structure 721 and is configured to support the beam structure 721 above the top surface 41 of the concrete grid 40. The through hole 715 of the body 711 is sleeved on the beam structure 721 and can move relative to the beam structure 721.

In one embodiment, the securing mechanism 72 further includes one or more rollers 726 disposed at the bottom of the post structure 725. After the stripper apparatus 70 is placed on the top surface 41 of the concrete grid 40, the post structure 725 may be moved over the top surface 41 of the concrete grid 40 by rollers 726. In this way, the fixing mechanism 72, together with the supporting body 71 disposed thereon, can slide on the top surface 41 of the concrete lattice 40, thereby reducing manual handling.

In one embodiment, as shown in fig. 21 and 22, the fixing mechanism 72 further includes two fixing arms 722. The securing arms 722 are configured to extend to and abut the bottom surface 42 of the concrete grid 40 to thereby increase the stability of the demolding apparatus 70 as a whole. Specifically, each securing arm 722 includes a vertical extension 723 and a lateral extension 724. A vertical extension 723 is connected to one end of the beam structure 721 and extends vertically downward. The length of the beam structure 721 extension is selected such that the lower end of the vertical extension 723 is lower than the bottom surface 42 of the concrete lattice plate 40 after placement of the securing mechanism 72 over the top surface 41 of the concrete lattice plate 40. The lateral extension 724 connects the other end of the vertical extension 723 opposite to the beam structure 721 and extends parallel to the beam structure 721. As such, as shown in fig. 21, the beam structure 721, the vertical extension 723 and the lateral extension 724 together form a U-shaped like clamping structure to abut against the bottom surface 42 of the concrete lattice 40 after the demolding apparatus 70 is disposed above the top surface 41 of the concrete lattice 40, thereby increasing the stability of the demolding apparatus 70.

In one embodiment, as shown in FIG. 22, demolding apparatus 70 further includes a driving mechanism 74. The driving mechanism 74 is connected to the telescopic mechanism 714 of the support body 711 via a pipeline 741 to drive the telescopic mechanism 714 to perform telescopic action and thereby provide thrust to the pushing structure 73. The drive mechanism 74 may drive the telescoping action of the telescoping mechanism 714 in a number of suitable ways. For example, the drive mechanism 74 may include a compressor and the telescoping mechanism 714 may include an oil cylinder, the drive mechanism 74 providing pressurized liquid to drive the telescoping mechanism 714 via line 741 to drive the telescoping mechanism 714 for telescoping movement.

In one embodiment, after the stripper apparatus 70 is positioned above the top surface 41 of the concrete grid 40, the support brackets 71 are not positioned in alignment with the holes 45. To solve this problem, the step S32 further includes moving the supporting body 711 of the supporting frame 71 along the beam structure 721 via the through hole 715 to above the hole 45 and disposing the leg 712 of the supporting frame 71 around the hole 45. Thus, a person can easily move the support 71 over the hole 45 without having to laboriously move the support 71.

After the setting of the demolding apparatus 70 is completed, the demolding method S30 further includes a step S33 of driving the telescoping mechanism 714 with the driving mechanism 74 of the demolding apparatus 70 to remove the mold 20 downward from the concrete lattice plate 40. In one embodiment, as shown in FIG. 23, the drive mechanism 74 drives the telescoping mechanism 714 into telescoping action such that the pushing surface of the pushing structure 73 contacts the mold 20 and provides a pushing force to push the mold 20. The mold 20 will separate from the concrete lattice 40, urged by the urging structure 73.

In one embodiment, after step S33 is completed, the person may further move the support frame 71 along the beam structure 721 to bring the support frame 71 to a position of another mold 20 aligned in the same lateral direction (parallel to the extending direction of the beam structure 721) and repeat step S33 to remove the other mold 20. After the demolding process is completed for the molds 20 in the same lateral direction, the operator can push the fixing mechanism 72 in the longitudinal direction to make the support 71 reach the position of one of the plurality of molds 20 arranged in the other lateral direction and repeat the step S33 to remove each mold 20 one by one. Thus, by the provision of the fixing mechanism 72, the person can efficiently complete the demolding process of removing all the molds 20 on the concrete lattice 40.

It should be understood that the fixing mechanism for assisting in positioning the support frame 71 in the embodiment of the present invention is not limited to the aspect of the above embodiment, but may have various modifications. For example, in the embodiment shown in fig. 24, the demolding apparatus 70a includes a securing mechanism 75. The securing mechanism 75 includes a cable 751 and a plurality of locking pieces 752. The locking member 752 may be a hook or a clasp and is attached to both ends of the cable 751. After the stripping apparatus 70a is disposed on the top surface 41 of the concrete lattice plate 40, the cables 751 pass through the through holes 715 of the support frame 71 and the locking pieces 752 are fastened to the extension 31 of the reinforcement cage 30. In one embodiment, the demolding apparatus 70a further comprises a plurality of protection pads 753 disposed between the cables 751 and the concrete lattice 40 to protect the cables 751 or the concrete lattice 40 from damage due to friction.

The terms "a" or "an" are used herein to describe the elements and components of the invention. This terminology is for the purpose of descriptive convenience only and is provided with a basic idea of the invention. This description should be read to include one or at least one and, unless expressly stated otherwise, mean that the singular also includes the plural. In the claims, the terms "a" and "an" when used in conjunction with the word "comprising" may mean one or more than one. Furthermore, the term "or" is used herein to mean "and/or".

Unless otherwise specified, spatial descriptions such as "above," "below," "upward," "left," "right," "downward," "body," "base," "vertical," "horizontal," "side," "upper," "lower," "upper," "above," "below," and the like are indicated with respect to the directions shown in the figures. It should be understood that the spatial descriptions used herein are for illustrative purposes only, and that the actual implementation of the structures described herein may be spatially arranged in any relative direction, without this limitation altering the advantages of the embodiments of the present invention. For example, in the description of some embodiments, an element provided "on" another element may encompass the situation in which the preceding element is directly on (e.g., in physical contact with) the following element as well as the situation in which one or more intervening elements are located between the preceding element and the following element.

As used herein, the terms "substantially," "generally," and "about" are used to describe and contemplate minor variations. When used in connection with an event or circumstance, the terms can mean that the event or circumstance happens explicitly, and that the event or circumstance is very close to that of it.

The above embodiments are merely for illustrating the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement it accordingly, and it is intended that the scope of the present invention shall not be limited thereto, but that equivalent variations or modifications according to the spirit of the present invention shall be covered.

Symbol description

11: external mold

12: bottom die

13: interior space

15: upper cover

150: body

151: handle grip

152: fixing piece

20: mould

21: side wall

211: upper end

212: lower end of

213: inner surface

215: perforation

22: top wall

23: longitudinal ribs

30: reinforcement cage

31: extension part

40: concrete grid plate

41: top surface

42: bottom surface

45: holes and holes

50: demolding device

51: supporting frame

511: support leg

512: support body

513: screw hole

52: screw rod

53: coupling piece

530: disk structure

531: groove(s)

54: positioning groove

55: driving mechanism

60: demolding device

61: body

611: upper surface of

612: lower surface of

62: elongated engagement member

63: impact structure

64: handle grip

65: limiting structure

66: impact member

67: handle grip

70: demolding device

71: supporting frame

711: support body

712: support leg

713: pad structure

714: telescopic mechanism

715: through hole

72: fixing mechanism

721: beam structure

722: fixing arm

723: vertical extension

724: lateral extension

725: column structure

726: roller wheel

73: push structure

74: driving mechanism

741: pipeline line

70a: demolding device

75: fixing mechanism

751: cable rope

752: locking piece

753: protective pad

S10: method of

S11, S12, S13, S14: step (a)

S20: method of

S21, S22, S23, S24: step (a)

S30: method of

S31, S32, S33: step (a)

Claims

1. A demolding apparatus for separating a mold forming a hole of a concrete lattice panel from the hole, the concrete lattice panel comprising a top surface and a bottom surface opposite the top surface, the hole communicating the top surface and the bottom surface, a lower end diameter of the mold being greater than an upper end diameter of the mold, and having an inner surface comprising a plurality of longitudinal ribs thereon, the demolding apparatus comprising:

a support frame including a plurality of legs fixed to a support body including screw holes therein, and a support body;

the screw rod is rotatably arranged in the screw hole of the supporting body, and the external thread of the screw rod is matched with the internal thread of the screw hole;

a coupler disposed at one end of the screw configured to engage the plurality of longitudinal ribs of the mold; and

a driving mechanism connected with the other end of the screw rod and providing torsion to the screw rod;

wherein the mold has an annular sidewall, the plurality of longitudinal ribs is formed on the annular sidewall, and the binder comprises a disk-shaped structure having a periphery with a plurality of grooves relative to the plurality of longitudinal ribs.

2. The demolding apparatus of claim 1, wherein the bonding member includes a plurality of locating grooves formed thereon, wherein the plurality of locating grooves alternate with the plurality of grooves along the periphery of the disk-shaped structure.

3. A demolding apparatus for separating a mold forming a hole of a concrete lattice panel from the hole, the concrete lattice panel comprising a top surface and a bottom surface opposite the top surface, the hole communicating the top surface and the bottom surface, a lower end diameter of the mold being greater than an upper end diameter of the mold, and having a top wall and an annular side wall, the top wall comprising a plurality of perforations therein, and an inner surface of the side wall comprising a plurality of longitudinal ribs disposed opposite the plurality of perforations, the demolding apparatus comprising:

a body;

an impacted structure located above the upper surface of the body;

a plurality of elongated engagement members secured to a lower surface of the body for passing through and being disposed in and against the plurality of longitudinal ribs below the plurality of perforations of the top wall of the mold; and

an impact member for providing an impact force to the impacted structure.

4. A demolding apparatus for separating a mold forming a hole of a concrete lattice panel from the hole, the concrete lattice panel comprising a top surface and a bottom surface opposite the top surface, the hole communicating the top surface and the bottom surface, a lower end diameter of the mold being greater than an upper end diameter of the mold, the demolding apparatus comprising:

a support frame comprising a plurality of legs and a support body, the support body comprising a telescoping mechanism therein, the plurality of legs being secured to the support body;

a fixing mechanism connected to the support body for fixing the support body to the top surface of the concrete lattice plate;

a biasing structure including a biasing surface to contact and provide a biasing force to the mold, the biasing structure being connected with the telescoping mechanism of the support body of the support frame; and

and the driving mechanism is connected with the telescopic mechanism of the supporting body and drives the telescopic mechanism to perform telescopic action so as to provide thrust to the pushing structure.

5. The demolding apparatus of claim 4, wherein the securing mechanism comprises:

the beam structure is connected with the support body of the support frame, and two ends of the beam structure respectively comprise fixed arms which are configured to extend to and abut against the bottom surface of the concrete lattice plate.

6. The demolding apparatus of claim 5, wherein the support body of the support frame includes a through-hole therein, and the support body of the support frame is slidably sleeved over the beam structure via the through-hole.

7. The demolding apparatus of claim 4, wherein the concrete lattice plate includes a plurality of U-shaped or hooked bars extending from a periphery of the concrete lattice plate, the securing mechanism includes a cable that passes through the support body of the support frame and has both ends respectively secured to at least one of the plurality of U-shaped or hooked bars.

8. A method of demolding, comprising:

providing a concrete lattice plate comprising a top surface and a bottom surface opposite the top surface, and a mold disposed in the concrete lattice plate to form a hole communicating the top surface and the bottom surface, the mold having a lower end diameter that is greater than an upper end diameter of the mold and an inner surface comprising a plurality of longitudinal ribs thereon;

turning the concrete lattice plate so that the bottom surface of the concrete lattice plate is placed upward;

providing and placing the demolding apparatus of claim 1 above the bottom surface;

placing the binder into the mold to engage the plurality of longitudinal ribs; and

and starting the driving mechanism to rotate the screw rod and enable the screw rod to perform linear motion relative to the supporting frame, so that the die is separated from the concrete grid plate and the holes are exposed.

9. A method of demolding, comprising:

providing and placing the demolding apparatus of claim 2 over the bottom surface;

entering the disc-shaped structure into the mold at a first predetermined angle and passing the plurality of longitudinal ribs through the plurality of grooves;

rotating the disc-shaped structure to engage the plurality of detents at a second predetermined angle; and

10. A method of demolding, comprising:

providing a concrete lattice plate comprising a top surface and a bottom surface opposite the top surface, and a mold disposed in the concrete lattice plate to form a hole communicating the top surface and the bottom surface, the mold having a lower end diameter greater than an upper end diameter of the mold and having a top wall and a side wall, wherein the top wall comprises a plurality of perforations and an inner surface of the side wall comprises a plurality of longitudinal ribs disposed opposite the plurality of perforations;

placing the demolding apparatus of claim 3 over the top surface of the concrete lattice plate;

threading the elongated engagement member into the mold and against the plurality of longitudinal ribs; and

and impacting the impacted structure by the impact piece so as to separate the die from the concrete grid plate and expose the holes.

11. A method of demolding, comprising:

providing a concrete lattice plate comprising a top surface and a bottom surface opposite the top surface, and a mold disposed in the concrete lattice plate to form a hole communicating the top surface and the bottom surface, the lower end diameter of the mold being greater than the upper end diameter of the mold;

providing and placing the support frame of the demolding apparatus of claim 6 above the top surface of the concrete lattice plate, and the securing arm abutting the bottom surface of the concrete lattice plate;

moving the support body of the support frame over the hole and with the plurality of legs of the support frame disposed around the hole along the beam structure via the through-hole; and

and the driving mechanism is used for driving the telescopic mechanism to perform telescopic action, so that the pushing and pressing structure provides pushing force to the die, and the die is separated from the concrete grid plate and the holes are exposed.