CN114102833A

CN114102833A - Apparatus and method for releasing a mold from a grid plate

Info

Publication number: CN114102833A
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: 2022-03-01
Anticipated expiration: 2040-08-31
Also published as: CN114102833B

Abstract

The present disclosure is directed to providing an apparatus and method for releasing a mold from a grid plate. The apparatus includes: support frame, screw rod, binder and actuating mechanism. The screw rod is rotatably arranged in the screw hole of the support frame. The binder is disposed at one end of the screw and configured to engage with the mold. The drive mechanism is connected with the other end of the screw to provide torque to the screw.

Description

Apparatus and method for releasing a mold from a grid plate

Technical Field

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

Background

With the rapid development of emerging technologies, the semiconductor has a wide application range and increasing demands, and the emerging technologies such as artificial intelligence, car networking/internet of things, Fintech block chain or cloud medical treatment all need to utilize semiconductor products (such as chips) to perform fast and complex operations. Therefore, in order to meet the demand of a large number of semiconductor products, the demand for building semiconductor factories is also increasing. The amount of dust in the ambient environment during the semiconductor manufacturing process needs to be strictly controlled to avoid damaging the precision and reliability of the semiconductor product. The method for constructing the clean room by using the lattice beam perforated floor (lattice plate) is to discharge dust out of the clean room through the lattice plate perforations by using positive pressure and to re-enter clean air into the clean room through filtered return air, and is a design mode commonly used in semiconductor plants at present.

The general grid plate manufacturing method can be divided into two types of field pouring and precasting in a precasting yard. However, whether poured or pre-cast on site, a certain number of moulds are arranged inside the grid plate, and concrete slurry is poured between the inner mould and the outer mould surrounding the reinforcement cage of the grid plate to form the grid plate and the through holes in the grid plate. One of the conventional methods is to keep a mold in the grid plate after the grid plate is formed, i.e. the grid plate and the mold therein are not demolded, so that a certain number of molds which cannot be reused are required for each unit of grid plate, which increases the manufacturing cost. Another conventional method is to strike the top of the mould after the grid plate has been formed, using a conventional striking tool, such as a hammer, to disengage the mould from the concrete surface in the perforations with which it is in contact, and to reuse the mould. However, in the conventional knocking mode, since it is difficult to accurately control the knocking point and the knocking force, the concrete surface of the grid plate is easily damaged and/or the deformation or damage of the mold is easily caused.

Disclosure of Invention

Therefore, in order to solve the above problems, an embodiment of the present invention provides a demolding apparatus capable of separating a mold of a cavity formed in a concrete grid plate from a cavity quickly without damaging the surface of the concrete grid plate and damaging the mold. The concrete grid plate comprises a top surface and a bottom surface opposite to the top surface, and the holes are communicated with 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 a side wall. 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 joint, and a driving mechanism. The support frame comprises a plurality of support legs and a support body. A plurality of feet are secured to a support body that contains screw holes therein. The screw rod is rotatably arranged in the screw hole of the support body. The external thread of the screw rod is matched with the internal thread of the screw hole. The coupling is disposed at one end of the screw and is configured to engage with the longitudinal rib of the mold, and the driving mechanism is connected to the other end of the screw and provides a torque to the screw. In one embodiment of the invention, the bonding element comprises a disc-shaped structure having a groove at a periphery thereof opposite to the longitudinal rib, the disc-shaped structure comprising positioning grooves formed thereon, wherein the positioning grooves alternate with the grooves along the periphery of the disc-shaped structure.

According to an embodiment of the present invention, a demolding method using the above demolding apparatus includes: turning over the concrete grid plate to enable the bottom surface of the concrete grid plate to be placed upwards; providing and placing the demolding device above the bottom surface of the concrete grid plate; placing the bonding element into the 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 support frame, so that the mould is separated from the concrete grid plate and the holes are exposed. In one embodiment of the present invention, the engaging step of the engaging member and the longitudinal rib comprises the steps of, the disc-shaped structure entering 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 slot at a second predetermined angle.

In another embodiment of the invention, a demolding apparatus includes a body, an impacted structure, a plurality of elongated engaging members, and an impact member. The impacted structure is located above the upper surface of the body. An elongated engaging member is fixedly attached to the lower surface of the body and is adapted to pass through and be disposed in a plurality of perforations in the top wall of the mold. The impact member is configured to provide an impact force to the impacted structure.

According to an embodiment of the present invention, a demolding method using the above demolding apparatus includes: providing and placing the demolding equipment above the top surface of the concrete grid plate; inserting the elongated engagement member through the mold and against the longitudinal rib; and impacting the impacted structure by utilizing the impact piece to separate the mould from the concrete grid plate and expose the holes.

In yet another embodiment of the present invention, a demolding apparatus includes a support frame, a fixing mechanism, a pushing structure, and a driving mechanism. The support frame comprises a plurality of support feet and a support body. The support body includes a telescopic mechanism therein, and a plurality of legs are fixed to the support body. The fixing mechanism is connected to the support body and is used for fixing the support body to the top surface of the concrete grid plate. The urging structure includes an urging surface to contact and provide an urging force to a mold. The pushing structure is connected with the telescopic mechanism of the support body of the support frame. The driving mechanism is connected with the telescopic mechanism of the support 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 secured to the beam structure, the beam structure being connected to the support body of the support frame and including securing arms at each end thereof, the securing arms configured to extend to and abut the bottom surface of the concrete grid panel. The support body of the support frame comprises a through hole therein, and the support body of the support frame is slidably sleeved on the beam structure through the through hole.

According to an embodiment of the present invention, the demolding method using the demolding apparatus includes: providing and placing the demolding equipment above the top surface of the concrete grid plate, wherein the fixed arm abuts against the bottom surface of the concrete grid plate; moving the support body of the support frame to the position above the hole and enabling the support legs of the support frame to be arranged around the hole by moving the beam structure through the through hole; and driving the telescopic mechanism to perform telescopic action by using 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 hole is exposed.

Drawings

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

Fig. 3 is a schematic top view of an embodiment of the present invention showing a top cover covering a mold in a grid plate.

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

Fig. 5-8 show schematic views of part of the steps of a grid plate molding method in an embodiment of the invention.

FIG. 9 shows a flowchart of a demolding method according to an embodiment of the invention.

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

FIG. 16 shows a flow chart of a demolding method according to an embodiment of the invention.

FIG. 17 shows a schematic view of a demolding apparatus according to an embodiment of the invention.

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

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

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

FIGS. 22-23 show schematic views of portions of steps of a demolding method according to an embodiment of the invention.

FIG. 24 is a schematic view of a demolding apparatus of an embodiment of the present invention disposed on a concrete grid panel.

Detailed Description

For a better understanding of the features, objects, and advantages of the invention, as well as the advantages thereof, reference should be made to the following detailed description of illustrative embodiments, which is to be read in connection with the accompanying drawings, wherein the same is shown by way of illustration and description only, and wherein the same is not to be considered as limiting the invention to the specific forms disclosed.

Fig. 1, 2, 5-8 show schematic views of a portion of the steps of a method of molding a concrete grid panel in accordance with an embodiment of the present invention. In one embodiment, as shown in fig. 1, a method of molding a concrete grid panel includes providing an outer mold 11 and a bottom mold 12, wherein the outer mold 11 is positioned above the bottom mold 12 and disposed 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 comprises side walls 21 and a top wall 22. The side wall 21 forms 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, a top cover 15 is disposed above the top wall 22 of the mold 20. The 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 removed during the construction process. In one embodiment, the body 150 may match the shape of the top wall 22 and have a slightly larger area 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 from the outer edge of the top wall 22.

Referring to fig. 4, a bottom view of mold 20 in a 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 at equal intervals in the circumferential direction of the mold 20. However, it is understood that the embodiment of the present invention is not limited thereto, and the number of the longitudinal ribs 23 may be adjusted according to actual requirements. 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 a projection position of the at least one longitudinal rib 23 on the top wall 22 overlaps the upper through holes 215. In one embodiment, the number of the through holes 215 corresponds to the number of the longitudinal ribs 23, i.e., the through holes 215 are disposed above each longitudinal rib 23. In some other embodiments, the perforations 215 are omitted.

In one embodiment, as shown in fig. 5, the method of molding a concrete grid panel includes providing a reinforcement cage 30 between the exterior mold 11 and the mold 20. The reinforcement cage 30 includes extensions 31 at both ends thereof that extend beyond the exterior form 11 and protrude outside 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 grid further comprises pouring concrete in the inner space 13 and standing for solidification to form the concrete grid 40, wherein each mold 20 forms a hole 45 in the concrete grid 40, and the hole 45 communicates with the top surface 41 and the bottom surface 42 of the concrete grid 40. In the exemplary embodiment, the concrete pour is positioned at a height that is substantially equal to the height of mold 20 such that top surface 41 of concrete grid panel 40 is flush with top wall 22 of mold 20. The cover 15 is placed over the mold 20, in which case the periphery of the cover 15 will abut against the top surface 41 of the concrete grid 40 because the cover 15 has a larger area than the top wall 22 of the mold 20. Therefore, when a constructor walks on the top surface 41 of the concrete grid plate 40, the cover body 15 can prevent the constructor from stepping on the mold 20 too directly to cause the mold to fall or shift, thereby endangering the safety of the constructor.

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

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

Referring to fig. 10, according to an embodiment of the present invention, the demolding apparatus 50 includes a supporting frame 51, a screw 52, and a coupling member 53. Support frame 51 is configured to stabilize demolding apparatus 50 above concrete grid panel 40. In one embodiment, the supporting frame 51 includes two legs 511 and a supporting body 512, and the two legs 511 are respectively connected to two ends of the supporting body 512. After the stripping apparatus 50 is placed on the bottom surface 42 of the inverted concrete grid 40, the support body 512 is parallel to the bottom surface 42 of the concrete grid 40 and the legs 511 abut against the bottom surface 42 of the concrete grid 40. The support body 512 has a screw hole 513 formed through the substantially center thereof, and the screw 52 is rotatably disposed in the screw hole 513 of the support body 512, wherein the external thread of the screw 52 is engaged with the internal thread of the screw hole 513.

A coupler 53 is detachably disposed at one end of the screw 52 and is configured to engage with the longitudinal rib 23 of the mold 20. Specifically, the coupling 53 includes a disc-shaped structure 530. The diameter of the disk-shaped structure 530 is selected so that the disk-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 through. In addition, the coupling member 53 includes a plurality of positioning grooves 54 formed on the disc structure 530 and alternately arranged with the grooves 531 along the circumference of the disc structure 530. In one embodiment, the number of the grooves 531 and the number of the positioning grooves 54 are equal to the number of the longitudinal ribs 23 of the mold 20, but the invention is not limited thereto. The number of grooves 531 or detents 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 above step S13 further includes placing the coupler 53 of the demolding apparatus 50 inside the mold 20 (fig. 11), wherein the disc-shaped structure 530 enters the mold 20 at the first predetermined angle. At the first predetermined angle, the groove 531 is located relative to the longitudinal rib 23 of the mold 20, so that during the entry of the disc-shaped structure 530 into the mold 20, the longitudinal rib 23 passes through the groove 531, and the disc-shaped structure 530 comes to lie below the longitudinal rib 23.

The step S13 further includes rotating the coupler 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 engaging member 53 after the engaging member 53 is placed inside the mold 20 to form the capturing mechanism. In the operation of rotating the coupling member 53 from the first predetermined angle to the second predetermined angle, the coupling member 53 rotates together with the screw 52. Therefore, when the engaging piece 53 is rotated, the engaging piece 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 to the mold 20, the above step S14 is performed: actuating the drive mechanism 55 separates the mould 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 threaded rod 52 that is connected to the coupling 53. In this way, after the driving mechanism 55 is activated, as shown in fig. 14, the driving mechanism 55 rotates the screw 52, and makes the screw 52 perform a linear motion relative to the support frame 51, so as to separate the mold 20 from the concrete grid plate 40 and expose the holes 45.

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

Fig. 16 shows a flowchart of a demolding method S20 according to another embodiment of the invention. The demolding method S20 includes step S21 of providing the concrete grid panel 40 as shown in fig. 8. The method S20 further includes step S22 of providing a stripping apparatus 60 above the top surface 41 of the concrete grid 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, demolding apparatus 60 includes a body 61, an impacted structure 63, a plurality of elongated engaging members 62, and an impacting member 66. The body 61 is disc-shaped and has an upper surface 611 and a lower surface 612 opposite the upper surface 611. The elongated engagement member 62 is fixedly secured 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 engaging member 62 may extend less than the height of the mold 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 provided separately 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 stripping apparatus 60 and a handle 67 may be attached to the impact member 66 to facilitate the operation of the stripping apparatus 60 by a human operator. In addition, the demolding apparatus 60 may include a plurality of stopper 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 mold removing device 60 and the elongated engaging member 62 on the top surface 41 of the concrete grid 40, wherein the elongated engaging member 62 is inserted through the through hole 215 of the mold 20 and abuts against the upper end of the longitudinal rib 23 located below the through hole 215. At this time, the height of the stopper structure 65 is slightly higher than the top surface 41 of the grid plate 40.

After the elongated engaging members 62 are engaged with the mold 20, the demolding method S20 further includes a step S24 of impacting the impacted structure 63 with the impacting members 66 to separate the mold 20 from the concrete grid panel 40 and expose the holes 45. Specifically, as shown in fig. 18, the impact member 66 is manually or mechanically dropped and impacts the impacted structure 63 from above the body 61 by gravity. Under the impact force, the mold 20 is separated from the concrete grid plate 40 to expose the holes 45, as shown in fig. 19. It is noted that as the body 61 approaches the perforations 45, the retaining structure 65 will move from a position closer to the top surface 41 of the grid plate 40 to abut the top surface 41 of the concrete grid plate 40, thereby preventing the body 61 from entering the perforations 45. Since the body 61 will rest on the top surface 41 of the concrete grid 40, the mould 20 will naturally fall under gravity and separate from the elongate engagement members 62 of the stripping apparatus 60.

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

Referring to fig. 21, the demolding apparatus 70 includes a supporting frame 71, a fixing mechanism 72, and a pushing structure 73. The support bracket 71 includes a support body 711 and a plurality of legs 712. The supporting legs 712 surround the supporting body 711 and are fixed on the supporting body 711. The pad structures 713 may be provided at the bottom of the support legs 712 to increase a contact area and friction between the support legs 712 and the concrete grid 40 and to protect the concrete grid 40 from being damaged by pressure. The support body 711 includes a telescoping mechanism 714 (e.g., an oil hydraulic cylinder) therein. In addition, the supporting body 711 further includes a through hole 715 thereon. The pushing structure 73 is connected below the telescoping mechanism 714. The bottom of the biasing structure 73 has a biasing surface for contacting the top wall 22 of the mold 20.

Referring to fig. 21 and 22, the fixing mechanism 72 is connected to the support body 71 and is used to fix the support body 71 above the top surface 41 of the concrete grid plate 40. In one embodiment, the securing mechanism 72 includes a beam structure 721 and one or more column structures 725. The column structures 725 join the bottom surfaces of the beam structures 721 and are configured to support the beam structures 721 above the top surface 41 of the concrete grid panel 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 fixing mechanism 72 further comprises one or more rollers 726 disposed at the bottom of the pillar structures 725. After the demolding apparatus 70 is placed on the top surface 41 of the concrete grid plate 40, the post structures 725 may be moved over the top surface 41 of the concrete grid plate 40 by the rollers 726. In this way, the fixing mechanism 72 and the supporting body 71 disposed thereon can slide on the top surface 41 of the concrete grid plate 40, reducing the manual transportation.

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 panel 40 to increase the overall stability of the demolding apparatus 70. Specifically, each securing arm 722 includes a vertical extension 723 and a lateral extension 724. The vertical extension 723 is connected to one end of the beam structure 721 and extends vertically downward. The length of extension of the beam structure 721 is selected so that the lower end of the vertical extension 723 is below the bottom surface 42 of the concrete grid plate 40 after the fixing mechanism 72 is placed over the top surface 41 of the concrete grid plate 40. The lateral extension 724 connects the other end of the vertical extension 723 opposite the beam structure 721 and extends parallel to the beam structure 721. In this way, as shown in fig. 21, the beam structure 721, the vertical extension 723 and the lateral extension 724 together form a U-shaped clamping structure to abut against the bottom surface 42 of the concrete grid 40 after the demolding device 70 is disposed above the top surface 41 of the concrete grid 40, thereby increasing the stability of the demolding device 70.

In one embodiment, as shown in fig. 22, the demolding apparatus 70 further includes a driving mechanism 74. The driving mechanism 74 is connected to the telescoping mechanism 714 of the support body 711 through a pipeline 741 to drive the telescoping mechanism 714 to telescope and provide thrust to the pushing structure 73. The drive mechanism 74 may drive the telescoping action of the telescoping mechanism 714 in a variety of suitable ways. For example, the drive mechanism 74 may comprise a compressor and the telescoping mechanism 714 may comprise an oil hydraulic cylinder, the drive mechanism 74 providing pressurized liquid to the drive telescoping mechanism 714 through line 741 to drive the telescoping movement of the telescoping mechanism 714.

In one embodiment, the support bracket 71 is not positioned in alignment with the hole 45 after the stripper device 70 is positioned over the top surface 41 of the concrete grid panel 40. To solve this problem, the step S32 further includes moving the supporting body 711 of the supporting frame 71 along the beam structure 721 through the through hole 715 to be above the hole 45 and disposing the legs 712 of the supporting frame 71 around the hole 45. Therefore, the person can easily move the supporting frame 71 to the upper side of the hole 45 without moving the supporting frame 71 with great effort.

After the setting of the demolding apparatus 70 is completed, the demolding method S30 further includes step S33, driving the telescoping mechanism 714 by the driving mechanism 74 of the demolding apparatus 70 to remove the mold 20 from the concrete grid plate 40 downward. In one embodiment, as shown in fig. 23, the driving mechanism 74 drives the telescoping mechanism 714 to perform a 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. Pushed by the pushing structure 73, the mold 20 will be separated from the concrete grid panel 40.

In one embodiment, after completing step S33, the person may further move the supporting frame 71 along the beam structure 721 to make the supporting frame 71 reach the position of another mold 20 aligned in the same transverse direction (parallel to the extending direction of the beam structure 721) and repeat step S33 to remove the other mold 20. After the molds 20 in the same transverse direction have completed the demolding procedure, the person may push the fixing mechanism 72 in the longitudinal direction to make the supporting frame 71 reach the position of one of the molds 20 arranged in the other transverse direction and repeat step S33 to remove each mold 20 one by one. Thus, by providing the fixing mechanism 72, the worker can efficiently complete the releasing process for removing all the molds 20 on the concrete grid plate 40.

It should be understood that the fixing mechanism for assisting the positioning of the supporting frame 71 in the embodiment of the present invention is not limited to the aspects of the above-described embodiment, and 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 members 752. The locking member 752, which may be a hook or a clasp, is attached to the ends of the cable 751. After the stripping apparatus 70a is disposed on the top surface 41 of the concrete grid panel 40, the cable 751 passes through the through-hole 715 of the support bracket 71, and the locking piece 752 is fastened to the extension 31 of the reinforcement cage 30. In one embodiment, stripping apparatus 70a further comprises a plurality of protection pads 753 disposed between cables 751 and concrete grid 40 to protect cables 751 or concrete grid 40 from damage due to friction.

The terms "a" or "an" are used herein to describe elements and components of the invention. This terminology is used for convenience in description only and is to be taken as an aid in imparting the general concepts of the invention. This description should be read to include one or at least one and the singular also includes the plural unless it is obvious that it is meant otherwise. The terms "a" or "an" when used in conjunction with the word "comprising" in the claims may mean one or more than one. Further, the term "or" is used herein to mean "and/or".

Unless otherwise specified, spatial descriptions such as "above," "below," "up," "left," "right," "down," "body," "base," "vertical," "horizontal," "side," "upper," "lower," "upper," "above," "below," and the like are directed to the directions shown in the figures. It is to be understood that the spatial descriptions used herein are for purposes of illustration only and that actual implementations of the structures described herein may be spatially arranged in any relative orientation, such limitations not 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 case where the preceding element is directly on the succeeding element (e.g., in physical contact with the succeeding element), as well as the case where one or more intervening elements are located between the preceding and succeeding elements.

As used herein, the terms "substantially," "generally," and "about" are used to describe and account for minor variations. When used in conjunction with an event or circumstance, the terms can mean that the event or circumstance occurs specifically, and that the event or circumstance closely approximates that which occurs.

The above-described embodiments are merely illustrative of the technical spirit and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and to implement the same, and equivalents and modifications made in the spirit of the present invention are included in the scope of the present invention.

Description of the symbols

11: outer mould

12: bottom die

13: inner space

15: upper cover

150: body

151: handle bar

152: fixing piece

20: die set

21: side wall

211: upper end of

212: lower end

213: inner surface

215: perforation

22: roof wall

23: longitudinal rib

30: steel reinforcement cage

31: extension part

40: concrete grid plate

41: top surface

42: bottom surface

45: hole(s)

50: demoulding equipment

51: supporting frame

511: supporting leg

512: support body

513: screw hole

52: screw rod

53: joint member

530: disc-shaped structure

531: groove

54: locating slot

55: driving mechanism

60: demoulding equipment

61: body

611: upper surface of

612: lower surface

62: elongated engagement member

63: impacted structure

64: handle bar

65: limiting structure

66: impact member

67: handle bar

70: demoulding equipment

71: supporting frame

711: support body

712: supporting leg

713: pad structure

714: telescopic mechanism

715: through hole

72: fixing mechanism

721: beam structure

722: fixed arm

723: vertical extension

724: lateral extension

725: column structure

726: roller wheel

73: pushing structure

74: driving mechanism

741: pipeline

70 a: demoulding equipment

75: fixing mechanism

751: cable rope

752: locking piece

753: protective pad

S10: method of producing a composite material

S11, S12, S13, S14: step (ii) of

S20: method of producing a composite material

S21, S22, S23, S24: step (ii) of

S30: method of producing a composite material

S31, S32, S33: step (ii) of

Claims

1. A demolding apparatus for separating a mold from a bore hole forming a concrete grid panel, the concrete grid panel including a top surface and a bottom surface opposite to the top surface, the bore 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 an inner surface, the inner surface including a plurality of longitudinal ribs thereon, the demolding apparatus comprising:

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

the screw rod is rotatably arranged in the screw hole of the support 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 said screw configured to engage said plurality of longitudinal ribs of said mold; and

and the driving mechanism is connected with the other end of the screw rod and provides torque force to the screw rod.

2. The demolding apparatus of claim 1, wherein the mold has an annular sidewall, the plurality of longitudinal ribs are formed over the annular sidewall, and the bond comprises a disc-shaped structure having a periphery with a plurality of grooves relative to the plurality of longitudinal ribs.

3. The demolding apparatus of claim 2, wherein the coupling includes a plurality of detents formed thereon, wherein the plurality of detents alternate with the plurality of grooves along the peripheral edge of the disk-shaped structure.

4. A demolding apparatus for separating a mold for forming a hole of a concrete grid plate from the hole, the concrete grid plate including a top surface and a bottom surface opposite to the top surface, the hole communicating the top surface and the bottom surface, the mold having a lower end diameter larger than an upper end diameter of the mold and having a top wall including a plurality of perforations therein, the demolding apparatus comprising:

a body;

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

a plurality of elongated engaging members fixedly secured to a lower surface of the body for passing through and being disposed in the plurality of perforations of the top wall of the mold; and

an impact member to provide an impact force to the impacted structure.

5. A demolding apparatus for separating a mold, which forms a hole of a concrete grid plate, from the hole, the concrete grid plate including a top surface and a bottom surface opposite to the top surface, the hole communicating the top surface and the bottom surface, a lower end diameter of the mold being larger than an upper end diameter of the mold, the demolding apparatus comprising:

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

a securing mechanism connected to the support body to secure the support body to the top surface of the concrete grid panel;

a biasing structure including a biasing surface for contacting the mold and providing a biasing force to the mold, the biasing structure coupled 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 support body and drives the telescopic mechanism to perform telescopic action so as to provide thrust to the pushing structure.

6. The demolding apparatus as claimed in claim 5, wherein the fixing mechanism includes:

a beam structure connected to said support body of said support frame and having securing arms at each end thereof configured to extend to and abut said bottom surface of said concrete grid panel, and a plurality of post structures secured to said beam structure.

7. The demolding apparatus of claim 6, wherein 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.

8. The demolding apparatus of claim 5, wherein the concrete grid plate includes a plurality of U-shaped or hook-shaped reinforcing bars extending from a periphery of the concrete grid plate, the securing mechanism including a cable passing through the support body of the support frame and secured at both ends thereof to at least one of the plurality of U-shaped or hook-shaped reinforcing bars, respectively.

9. A method of demolding, comprising:

providing a concrete grid plate comprising a top surface and a bottom surface opposite the top surface, and a mold disposed in the concrete grid 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 an inner surface comprising a plurality of longitudinal ribs thereon;

turning over the concrete grid plate to place the bottom surface of the concrete grid plate upwards;

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

placing the bonding element 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 support frame, so that the mould is separated from the concrete grid plate, and the hole is exposed.

10. A method of demolding, comprising:

providing and placing the demolding apparatus of claim 3 above the bottom surface;

passing 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 with the plurality of positioning slots at a second predetermined angle; and

11. A method of demolding, comprising:

providing a concrete grid plate comprising a top surface and a bottom surface opposite the top surface, and a mold disposed in the concrete grid 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 4 above the top surface of the concrete grid panel;

inserting the elongated engagement member through the mold and against the plurality of longitudinal ribs; and

and impacting the impacted structure by utilizing the impact piece to separate the mould from the concrete grid plate and expose the hole.

12. A method of demolding, comprising:

providing a concrete grid plate, wherein the concrete grid plate comprises a top surface and a bottom surface opposite to the top surface, a mould is arranged in the concrete grid plate to form a hole communicating the top surface and the bottom surface, and the diameter of the lower end of the mould is larger than that of the upper end of the mould;

providing and placing said support frame of said demolding apparatus as recited in claim 8 above said top surface of said concrete grid plate, with said stationary arm abutting said bottom surface of said concrete grid plate;

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

and driving the telescopic mechanism to perform telescopic action by using 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 hole is exposed.