Forming device and process for rough surface of prefabricated wall panel

By coordinating the base plate, auxiliary enclosure structure, and push-pull mechanism, the four sides of the precast wall panel are formed in one step, solving the problems of low efficiency and poor quality consistency in the existing technology, and forming an efficient and environmentally friendly rough surface forming device and process.

CN121268043BActive Publication Date: 2026-07-14CHINA RAILWAY 14TH BUREAU GRP CONSTR TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY 14TH BUREAU GRP CONSTR TECH CO LTD
Filing Date
2025-11-07
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing precast wall panel rough surface forming technology is inefficient, has poor quality consistency, and suffers from high costs and environmental pollution problems.

Method used

The system employs a base plate, auxiliary enclosure structure, main enclosure structure, and push-pull mechanism to form a rough surface on all four sides of the wall panel in one step. The push-pull mechanism creates a sand-filled area when the grout initially sets, resulting in a high-quality rough surface.

Benefits of technology

It achieves efficient and simple prefabricated wall panel rough surface forming, with high quality consistency, environmental protection and reusable equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a prefabricated wallboard rough surface forming device and process, belongs to the building component forming technical field, and comprises a bottom plate, the top surface of the bottom plate has a square lifting area; an auxiliary enclosure structure, the auxiliary enclosure structure comprises two long side diaphragm plates, two short side diaphragm plates and four top corner fixing bases; a main enclosure structure, the main enclosure structure comprises two long side enclosure plates and two short side enclosure plates; a push-pull mechanism, the push-pull mechanism is used to drive the long side enclosure plate, the short side enclosure plate to move in the direction away from or close to the square lifting area.The prefabricated wallboard rough surface forming device and process provided by the application can form a rough surface on four sides of a wallboard at one time through the cooperation of the bottom plate, the auxiliary enclosure structure, the main enclosure structure, the push-pull mechanism and the jacking mechanism, the construction process is simple and efficient, the rough surface formed has high quality consistency.Furthermore, the forming process is environmentally friendly, and the device can be repeatedly used.
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Description

Technical Field

[0001] This invention relates to a molding device and process for roughening the surface of precast wall panels, belonging to the field of building component molding technology. Background Technology

[0002] As a core component of prefabricated buildings, the technological development of prefabricated walls, manufactured in factories, directly impacts building quality, construction efficiency, and the level of industrialization. Among these developments, the roughening of the bonding surfaces (typically the bottom, top, and sides of the prefabricated concrete wall panels) is crucial to ensuring a reliable connection with the subsequently poured concrete. According to the current "Technical Specification for Prefabricated Concrete Structures" (JGJ 1) and "Code for Construction of Concrete Structures" (GB 50666), the area of ​​the roughened surface of the bonding surface of prefabricated components should not be less than 80% of the bonding surface area, and the depth of the roughened surface on the bottom, top, and sides of the prefabricated wall should not be less than 6 mm.

[0003] Currently used roughening surface forming technologies mainly include manual chiseling, steel mold indentation, and high-pressure water jetting (retarder etching). Manual chiseling relies heavily on manual operation, resulting in low efficiency, high labor intensity, and significant human error, leading to poor consistency in the roughened surface quality. Steel mold indentation uses prefabricated templates with raised sections, which are costly and cannot dynamically adjust depth, easily causing aggregate breakage during construction. High-pressure water jetting, also known as retarder etching, relies on retarders to slow the setting of concrete within a certain depth of the bonding surface. After the concrete reaches a certain strength, a high-pressure water jet is used to flush away the uncured concrete within the bonding surface. This process generates a large amount of wastewater, requiring a costly wastewater treatment system. Furthermore, the choice of retarder and the application process significantly affect the consistency of the roughened surface depth.

[0004] Therefore, the present invention aims to provide an economical and efficient prefabricated wall panel rough surface forming device and process. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, the present invention provides a forming device and process for rough surface of precast wall panels, which is simple to construct, highly efficient, and produces a rough surface with high consistency in quality.

[0006] The present invention achieves the above objectives by adopting the following technical solutions: On one hand, the present invention provides a forming apparatus for a rough surface of a precast wall panel, comprising: The base plate has a square raised area on its top surface that is higher than the surrounding area; The auxiliary enclosure structure includes two long side diaphragm panels, two short side diaphragm panels, and four corner fixing seats. The four corner fixing seats are respectively fixed at the four corners of the square raised area. The lower parts of the two long side diaphragm panels and the two short side diaphragm panels abut against the two long side facades and the two short side facades of the square raised area, respectively. The ends of the long side diaphragm panels and the short side diaphragm panels are detachably installed on the corresponding corner fixing seats. The main enclosure structure includes two long side enclosure panels and two short side enclosure panels. The two long side enclosure panels and two short side enclosure panels can respectively abut against the outer surfaces of the two long side diaphragm panels and the two short side diaphragm panels. The ends of the long side enclosure panels and the short side enclosure panels are respectively provided with end plates, and the bottom of the end plates is equipped with multiple rollers. Multiple push-pull mechanisms are used to move the long side guardrail and the short side guardrail away from or towards the square lifting area.

[0007] Preferably, the auxiliary enclosure structure further includes two long side push bars and two short side push bars, which can push against the lower part of the outer facade of the two long side diaphragm plates and the two short side diaphragm plates respectively; the top surface of the long side push bars and the short side push bars is not higher than the top surface of the square lifting area, the bottom surface of the long side enclosure plate and the short side enclosure plate is higher than the long side push bars and the short side push bars, and the bottom of the long side push bars and the short side push bars are provided with multiple bullseye wheels.

[0008] Furthermore, the auxiliary enclosure structure also includes multiple jacking mechanisms. Each jacking mechanism includes a guide rod, a spring, and a guide rod mounting base. The guide rod mounting base is fixed on the base plate. One end of the guide rod is fixed to the long side jacking bar or the short side jacking bar. The other end of the guide rod slides through the through hole on the guide rod mounting base and is fixed with a nut. The spring is sleeved on the guide rod.

[0009] Furthermore, the top of the long side enclosure and the short side enclosure are also provided with cover plates, and the long side enclosure and the cover plate are connected by stiffening plates.

[0010] In one specific embodiment, the push-pull mechanism includes a threaded rod, a bearing housing, a threaded rod mounting base, and a handwheel. The bearing housing is fixed on the long side guard plate or the short side guard plate, and the threaded rod mounting base is fixed on the base plate. One end of the threaded rod is connected to the inner ring of the bearing housing, and the other end is threadedly connected to the threaded hole on the threaded rod mounting base. After the threaded rod passes through the threaded rod mounting base, a handwheel is fixed at its end.

[0011] In a preferred embodiment, the long side diaphragm plate, the short side diaphragm plate, the long side enclosure plate, and the short side enclosure plate are all provided with steel bar grooves, and brushes are provided in the steel bar grooves.

[0012] Specifically, the top corner fixing seat includes two vertically connected vertical plates, which are parallel to the long and short side facades of the square lifting area, respectively. Two horizontal plates are connected to the top and bottom of the vertical plates, and a rod insertion hole is provided on the top horizontal plate.

[0013] Furthermore, each end of the long-side diaphragm plate and the short-side diaphragm plate is provided with a plug, which is inserted downward into the plug hole.

[0014] On the other hand, the present invention provides a forming process for a rough surface of a precast wall panel, which employs the above-mentioned forming device and includes the following steps: S1. Lay the base plate; S2. Install the corner bracket; S3. Place the long side jacking strip and the short side jacking strip so that the long side jacking strip and the short side jacking strip are close to the long side facade and the short side facade of the square lifting area, respectively; S4. Place the steel cage in the square lifting area; S5. Install the long side diaphragm plate, the short side diaphragm plate, and the jacking mechanism so that the steel bar grooves on the long side diaphragm plate and the short side diaphragm plate cross the horizontal and vertical bars of the steel cage. Insert the insertion rods at the ends of the long side diaphragm plate and the short side diaphragm plate into the insertion rod holes on the top corner fixing seat, and make the long side jacking bar and the short side jacking bar abut against the lower part of the long side diaphragm plate and the short side diaphragm plate respectively under the action of the jacking mechanism. S6. Install the long side enclosure plate, the short side enclosure plate, and the push-pull mechanism so that the steel bar grooves on the long side enclosure plate and the short side enclosure plate cross the horizontal and vertical bars of the steel cage. Under the action of the push-pull mechanism, the long side enclosure plate and the short side enclosure plate respectively abut against the outer surface of the long side diaphragm plate and the short side diaphragm plate, so that the long side diaphragm plate and the short side diaphragm plate and the square lifting area enclose the casting area. S7. Pour the slurry for producing wall panels into the pouring area; S8. When the slurry has initially set, the long side push bar or the short side push bar is pulled outward by the push-pull mechanism so that the long side push bar and the short side push bar are separated from the long side diaphragm plate and the short side diaphragm plate, forming a sand filling area between the long side diaphragm plate and the long side push bar, and between the short side diaphragm plate and the short side push bar. S9. Fill the sand-filled area with sand; S10. Pull the long side push bar and the short side push bar outward so that the long side push bar leaves the lower part of the long side diaphragm plate and the short side push bar leaves the lower part of the short side diaphragm plate. Then pull the long side diaphragm plate and the short side diaphragm plate upward to remove them. S11. By pushing the long side panel and short side panel inward through the push-pull mechanism, the sand is pushed by the long side panel and short side panel to embed the sand into the surface of the initial set wall panel, thus forming a rough surface on the wall panel. S12. After the wall panel has been cured and formed, the long side panel and short side panel are pulled outward by the push-pull mechanism to separate the horizontal and vertical ribs on the wall panel from the long side panel and short side panel, so that the wall panel can be lifted and the device can be disassembled.

[0015] The beneficial effects of the present invention include, but are not limited to: The prefabricated wall panel rough surface forming device and process provided by this invention can form a rough surface on all four sides of the wall panel in one step through the cooperation of a base plate, auxiliary enclosure structure, main enclosure structure, push-pull mechanism, and jacking mechanism. The construction process is simple, efficient, and produces a high degree of consistency in the quality of the rough surface. Moreover, the forming process is environmentally friendly, and the device can be reused. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the molding device provided by the present invention; Figure 2 This is an exploded structural diagram of a portion of the molding apparatus provided by the present invention. Figure 3 A three-dimensional view of one angle of the long side push bar; Figure 4 This is a schematic diagram of the jacking mechanism; Figure 5 This is a schematic diagram of the push-pull mechanism; Figure 6 This is a schematic diagram showing the rebar passing through a brush inside the rebar groove; Figure 7 This is a schematic diagram of the top corner fixing seat; Figure 8 for Figure 2 Enlarged view of section A; Figure 9 This is a schematic diagram of the forming device and the reinforcing cage before grout pouring; Figure 10 This is a schematic diagram showing the side area of ​​the wall panel after sand has been filled in. Figure 11 This is a schematic diagram of the forming device and the wall panel before lifting the wall panel; In the diagram, 1. Wall panel; 2. Sand; 3. Reinforcing steel; 100. Base plate; 110. Square lifting area; 210. Long side diaphragm plate; 220. Short side diaphragm plate; 230. Top corner fixing seat; 231. Vertical plate; 232. Horizontal plate; 233. Insertion rod hole; 240. Long side jacking bar; 250. Short side jacking bar; 260. Bullseye wheel; 270. Jacking mechanism; 271. Guide rod. 272. Spring; 273. Guide rod mounting base; 280. Insert rod; 310. Long side guard plate; 320. Short side guard plate; 330. End plate; 331. Roller; 332. Stop block; 340. Cover plate; 350. Rebar groove; 360. Brush; 400. Push-pull mechanism; 410. Threaded rod; 420. Bearing seat; 430. Threaded rod mounting base; 440. Handwheel. Detailed Implementation

[0017] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0018] It should be noted that many specific details are set forth in the following description to provide a thorough understanding of the invention; however, the invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0019] like Figure 1 and Figure 2 As shown, the prefabricated wall panel rough surface forming device provided by the present invention includes a base plate 100, an auxiliary enclosure structure, a main enclosure structure, and multiple push-pull mechanisms 400, etc.

[0020] Among them, such as Figure 2 As shown, the top surface of the base plate 100 has a square raised area 110 that is higher than the surrounding area.

[0021] The auxiliary enclosure structure includes two long side diaphragm panels 210, two short side diaphragm panels 220, and four corner fixing seats 230. The four corner fixing seats 230 are respectively fixed at the four corners of the square raised area 110. The lower parts of the two long side diaphragm panels 210 and the two short side diaphragm panels 220 abut against the two long side facades and two short side facades of the square raised area 110, respectively. The ends of the long side diaphragm panels 210 and the short side diaphragm panels 220 are detachably mounted on the corresponding corner fixing seats 230.

[0022] The main enclosure structure includes two long side enclosure panels 310 and two short side enclosure panels 320, which can respectively abut against the outer surfaces of the two long side diaphragm panels 210 and the two short side diaphragm panels 220. End plates 330 are respectively provided at the ends of the long side enclosure panels 310 and the short side enclosure panels 320, and multiple rollers 331 are installed at the bottom of the end plates 330 to facilitate the movement of the enclosure panels.

[0023] The push-pull mechanism 400 is used to move the long side guardrail 310 and the short side guardrail 320 away from or towards the square lifting area 110.

[0024] In use, with the cooperation of the long side enclosure 310 and the short side enclosure 320, the long side diaphragm plate 210, the short side diaphragm plate 220 and the square lifting area 110 enclose the casting area. Grout is poured into the casting area, and after curing and maintenance, a square wall panel can be formed.

[0025] To create a rough surface on the side of the wall panel, the long side retaining plate 310 and the short side retaining plate 320 are moved outwards when the grout initially sets, releasing the pushing force on the long side diaphragm plate 210 and the short side diaphragm plate 220. At this point, the grout has initially set and lost its fluidity, preventing collapse under the protection of the long side diaphragm plate 210 and the short side diaphragm plate 220. Next, sand 2 is filled into the area between the retaining plates and the diaphragm plates. After the sand is filled, it provides support to the side of the wall panel 1. After removing the diaphragm plates, each retaining plate is pushed inwards. By pushing the sand with the retaining plates, some of the sand is pressed into the side of the wall panel 1, creating a rough surface. This construction process is simple and efficient. Moreover, the resulting rough surface has a high degree of consistency.

[0026] The diaphragm plate is usually made of stainless steel, and the sand particle size is 6-12mm.

[0027] Since the diaphragm plates are relatively thin, they are usually fixed by fixing both the upper and lower parts at the same time. For example, the upper parts of each diaphragm plate are connected to the top corner fixing seat 230, while the lower part is preferably pressed against the side surface of the square lifting area 110 by a push bar.

[0028] Therefore, the auxiliary enclosure structure also includes two long side thrust strips 240 and two short side thrust strips 250, which can respectively push against the lower part of the outer facade of the two long side diaphragm panels 210 and the two short side diaphragm panels 220. The top surface of the long side thrust strips 240 and the short side thrust strips 250 is not higher than the top surface of the square raised area 110, so that when sand is filled, the sand 2 can fully contact the side surface of the wall panel 1.

[0029] The bottom surfaces of the long side enclosure panel 310 and the short side enclosure panel 320 are higher than the long side push bar 240 and the short side push bar 250, so that the enclosure panel can move above the push bar and fully push the diaphragm panel.

[0030] Furthermore, in order to control the extent to which the enclosure panels are pushed inward, it is preferable to provide stoppers 332 on the end plates 330 of both the long side enclosure panel 310 and the short side enclosure panel 320. When the enclosure panel moves inward and abuts against the diaphragm panel, the stoppers 332 abut against the top corner fixing seat 230, preventing further inward movement and thus preventing excessive pushing against the diaphragm panel.

[0031] like Figure 3 As shown, the bottom of both the long side push bar 240 and the short side push bar 250 is provided with multiple bullseye wheels 260, which facilitates pushing the push bar to press against the diaphragm plate, or facilitates pulling the push bar to move it away from the diaphragm plate.

[0032] To facilitate the operation of the jacking bars, the auxiliary enclosure structure provided by this invention also includes multiple jacking mechanisms 270, with one jacking mechanism 270 corresponding to each jacking bar. For example... Figure 4 As shown, the pushing mechanism 270 includes a guide rod 271, a spring 272, and a guide rod mounting base 273. The guide rod mounting base 273 is fixed around the base plate 100. One end of the guide rod 271 is fixed to the long side pushing bar 240 or the short side pushing bar 250, and the other end of the guide rod 271 slides through a through hole in the guide rod mounting base 273 and is fixed with a nut. The spring 272 is sleeved on the guide rod 271. With this configuration, the compressed spring 272 applies elastic force to the pushing bar, keeping the pushing bar pressed tightly against the diaphragm plate. When the pushing bar is pulled outward by an external force, it can contact the pushing of the diaphragm plate, the spring 272 is further compressed, and the guide rod 271 moves outward along the through hole in the guide rod mounting base 273. In addition, the arrangement of the guide rod 271 can constrain the pushing bar to move in a straight line.

[0033] Furthermore, in order to facilitate pulling the push bar outward, it is preferable to set a pull rope hole in the middle of each push bar, and thread a pull rope through the tension hole so that force can be easily applied by pulling the rope.

[0034] like Figure 1 and Figure 2 As shown, a cover plate 340 is also provided on the top of the long side enclosure 310 and the short side enclosure 320. The long side enclosure 310 and the cover plate 340, and the short side enclosure 320 and the cover plate 340 are connected by stiffening plates to ensure the mechanical strength of the enclosure.

[0035] like Figure 5As shown, in a preferred embodiment, the push-pull mechanism 400 includes a threaded rod 410, a bearing seat 420, a threaded rod mounting seat 430, and a handwheel 440. Each enclosure plate is provided with a corresponding push mechanism 270. The bearing seat 420 is fixed to the long side enclosure plate 310 or the short side enclosure plate 320, and the threaded rod mounting seat 430 is fixed to the base plate 100. One end of the threaded rod 410 is connected to the inner ring of the bearing seat 420, and the other end is threadedly connected to the threaded hole on the threaded rod mounting seat 430. After the threaded rod 410 passes through the threaded rod mounting seat 430, a handwheel 440 is fixed at its end. When the handwheel 440 is rotated to drive the threaded rod 410 to rotate forward or backward, the enclosure plate can be moved inward or outward.

[0036] According to standard practice, hooks are pre-embedded in the wall panel, with reinforcing bars 3 extending from two long sides and one wide side, and a sleeve pre-embedded on the other side. To ensure the reinforcing bars can smoothly pass through the diaphragm plate and cladding plate, as follows... Figure 2 As shown, steel bar grooves 350 are provided on the long side diaphragm plate 210, the short side diaphragm plate 220, the long side enclosure plate 310, and the short side enclosure plate 320. Furthermore, as... Figure 6 As shown, a brush 360 is installed inside the rebar groove 350. The brush 360 can avoid the rebar and block the rest of the rebar groove 350 to prevent a large amount of grout from flowing out of the rebar groove 350.

[0037] like Figure 7 As shown, the top corner fixing seat 230 includes two vertically connected vertical plates 231, which are parallel to the long side facade and short side facade of the square lifting area 110, respectively. Two horizontal plates 232 are connected to the top and bottom of the vertical plates 231, and a rod insertion hole 233 is provided on the top horizontal plate 232.

[0038] like Figure 8 As shown, both the long-side diaphragm plate 210 and the short-side diaphragm plate 220 are provided with insertion rods 280 at their ends. The insertion rods 280 are inserted downward into the insertion rod holes 233 to facilitate the installation and removal of the diaphragm plates.

[0039] On the other hand, the present invention provides a molding process based on the above-described molding apparatus, comprising the following steps: S1. Lay the base plate 100 and keep the base plate 100 level; S2. Install corner fixing seats 230 at the four corners of the square lifting area 110, and fix the corner fixing seats 230 to the base plate 100 with screws. S3. Place the long side push bar 240 and the short side push bar 250 so that the long side push bar 240 and the short side push bar 250 are close to the long side facade and the short side facade of the square lifting area 110, respectively. S4. Place the steel cage in the square lifting area 110 and place a pad between the bottom of the steel cage and the top surface of the square lifting area 110; wherein, the horizontal and vertical bars of the steel cage are arranged and tied according to the design requirements and match the position of the steel groove 350 on the diaphragm plate and the enclosure plate. S5. Install the long side diaphragm plate 210, the short side diaphragm plate 220 and the jacking mechanism 270, so that the steel bar grooves 350 on the long side diaphragm plate 210 and the short side diaphragm plate 220 cross the horizontal and vertical bars of the steel cage, and insert the insertion rods 280 at the ends of the long side diaphragm plate 210 and the short side diaphragm plate 220 into the insertion rod holes 233 on the top corner fixing seat 230, and make the long side jacking bar 240 and the short side jacking bar 250 abut against the lower part of the long side diaphragm plate 210 and the short side diaphragm plate 220 respectively under the action of the jacking mechanism 270. S6. Install the long side enclosure panel 310, the short side enclosure panel 320, and the push-pull mechanism 400, so that the reinforcing bar grooves 350 on the long side enclosure panel 310 and the short side enclosure panel 320 cross the horizontal and vertical reinforcing bars of the reinforcing cage. Under the action of the push-pull mechanism 400, the long side enclosure panel 310 and the short side enclosure panel 320 respectively abut against the outer facade of the long side diaphragm panel 210 and the short side diaphragm panel 220. After installation, as shown... Figure 9 As shown; thus, the long side diaphragm plate 210 and the short side diaphragm plate 220, together with the square lifting area 110, enclose the casting area; S7. Pour the slurry for producing wall panels into the pouring area; S8. When the slurry has initially set, the long side push bar 240 or the short side push bar 250 is pulled outward by the push-pull mechanism 400, so that the long side push bar 240 and the short side push bar 250 are separated from the long side diaphragm plate 210 and the short side diaphragm plate 220, forming a sand filling zone between the long side diaphragm plate 210 and the long side push bar 240, and between the short side diaphragm plate 220 and the short side push bar 250; at this time, the slurry loses its fluidity and maintains the shape of the wall panel under the enclosure of the long side diaphragm plate 210 and the short side diaphragm plate 220. S9. Fill the sand-filled area with sand; S10. Pull the long side push bar 240 and the short side push bar 250 outwards, so that the long side push bar 240 moves away from the lower part of the long side diaphragm plate 210 and the short side push bar 250 moves away from the lower part of the short side diaphragm plate 220. Then, lift the long side diaphragm plate 210 and the short side diaphragm plate 220 upwards to remove them. Figure 10 As shown; in addition, the width of the push bar should be matched as closely as possible to the width of the sand filling to avoid sand falling onto the bottom plate 100 and interfering with the movement of the push bar; S11. The long side panel 310 and the short side panel 320 are pushed inward by the push-pull mechanism 400. The long side panel 310 and the short side panel 320 push the sand to embed the sand into the surface of the initially set wall panel, thus forming a rough surface on the wall panel. If the top of the side of the wall panel is warped after pushing the sand, a steel roller can be used to roll the top of the side. S12. After the wall panel is cured and formed, the long side enclosure 310 and the short side enclosure 320 are pulled outward by the push-pull mechanism 400, so that the horizontal and vertical ribs on the wall panel are separated from the long side enclosure 310 and the short side enclosure 320. The wall panel is then lifted, the device is disassembled, and the device can be reused after cleaning.

[0040] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A forming process for a rough surface of a precast wall panel, characterized in that, A rough surface is created for prefabricated wall panels using a molding device; The molding apparatus includes: The base plate has a square raised area on its top surface that is higher than the surrounding area; The auxiliary enclosure structure includes two long side diaphragm panels, two short side diaphragm panels, and four corner fixing seats. The four corner fixing seats are respectively fixed at the four corners of the square raised area. The lower parts of the two long side diaphragm panels and the two short side diaphragm panels respectively abut against the two long side facades and two short side facades of the square raised area. The ends of the long side diaphragm panels and the short side diaphragm panels are detachably mounted on the corresponding corner fixing seats. Reinforcing bar grooves are provided on all the long side diaphragm panels, short side diaphragm panels, long side enclosure panels, and short side enclosure panels. Each corner fixing seat includes two vertically connected vertical plates, which are parallel to the long side facades and short side facades of the square raised area, respectively. Two horizontal plates are connected to the top and bottom of each vertical plate, and insertion holes are provided on the top horizontal plate. Insertion rods are provided at the ends of the long side diaphragm panels and the short side diaphragm panels, and the insertion rods are inserted downwards into the insertion rod holes. The main enclosure structure includes two long side enclosure panels and two short side enclosure panels. The two long side enclosure panels and two short side enclosure panels can respectively abut against the outer surfaces of the two long side diaphragm panels and the two short side diaphragm panels. The ends of the long side enclosure panels and the short side enclosure panels are respectively provided with end plates, and the bottom of the end plates is equipped with multiple rollers. Multiple push-pull mechanisms are used to move the long side guardrail and the short side guardrail away from or towards the square lifting area; The auxiliary enclosure structure also includes two long side jacking bars, two short side jacking bars, and multiple jacking mechanisms. The two long side jacking bars and two short side jacking bars can respectively jack against the lower part of the outer facade of the two long side diaphragm panels and the two short side diaphragm panels. The top surface of the long side jacking bars and the short side jacking bars is not higher than the top surface of the square lifting area, and the bottom surface of the long side enclosure panels and the short side enclosure panels is higher than the long side jacking bars and the short side jacking bars. The production method includes the following steps: S1. Lay the base plate; S2. Install the corner bracket; S3. Place the long side jacking strip and the short side jacking strip so that the long side jacking strip and the short side jacking strip are close to the long side facade and the short side facade of the square lifting area, respectively. S4. Place the steel cage in the square lifting area; S5. Install the long side diaphragm plate, the short side diaphragm plate and the jacking mechanism, so that the steel bar grooves on the long side diaphragm plate and the short side diaphragm plate cross the horizontal and vertical bars of the steel cage, and insert the insert rods at the ends of the long side diaphragm plate and the short side diaphragm plate into the insert rod holes on the top corner fixing seat, and make the long side jacking bar and the short side jacking bar abut against the lower part of the long side diaphragm plate and the short side diaphragm plate respectively under the action of the jacking mechanism; S6. Install the long side enclosure plate, the short side enclosure plate, and the push-pull mechanism so that the steel bar grooves on the long side enclosure plate and the short side enclosure plate cross the horizontal and vertical bars of the steel cage. Under the action of the push-pull mechanism, the long side enclosure plate and the short side enclosure plate respectively abut against the outer surface of the long side diaphragm plate and the short side diaphragm plate, so that the long side diaphragm plate and the short side diaphragm plate and the square lifting area enclose the casting area. S7. Pour the slurry for producing wall panels into the pouring area; S8. When the slurry has initially set, the long side push bar or the short side push bar is pulled outward by the push-pull mechanism so that the long side push bar and the short side push bar are separated from the long side diaphragm plate and the short side diaphragm plate, forming a sand filling area between the long side diaphragm plate and the long side push bar, and between the short side diaphragm plate and the short side push bar. S9. Fill the sand-filled area with sand; S10. Pull the long side push bar and the short side push bar outward so that the long side push bar leaves the lower part of the long side diaphragm plate and the short side push bar leaves the lower part of the short side diaphragm plate. Then pull the long side diaphragm plate and the short side diaphragm plate upward to remove them. S11. By pushing the long side panel and short side panel inward through the push-pull mechanism, the sand is pushed by the long side panel and short side panel to embed the sand into the surface of the initial set wall panel, thus forming a rough surface on the wall panel. S12. After the wall panel has been cured and formed, the long side panel and short side panel are pulled outward by the push-pull mechanism to separate the horizontal and vertical ribs on the wall panel from the long side panel and short side panel, so that the wall panel can be lifted and the device can be disassembled.

2. The forming process for the rough surface of the precast wall panel according to claim 1, characterized in that, The bottom of both the long and short side push bars is provided with multiple bullseye wheels.

3. The forming process for the rough surface of the precast wall panel according to claim 1, characterized in that, The jacking mechanism includes a guide rod, a spring, and a guide rod mounting base. The guide rod mounting base is fixed on the base plate. One end of the guide rod is fixed to the long side jacking bar or the short side jacking bar. The other end of the guide rod slides through the through hole on the guide rod mounting base and is fixed with a nut. The spring is sleeved on the guide rod.

4. The forming process for the rough surface of the precast wall panel according to claim 1, characterized in that, The top of the long side enclosure and the short side enclosure are also provided with cover plates, and the long side enclosure and the cover plate are connected by stiffening plates.

5. The forming process for the rough surface of the precast wall panel according to claim 1, characterized in that, The push-pull mechanism includes a threaded rod, a bearing housing, a threaded rod mounting base, and a handwheel. The bearing housing is fixed on the long side guard plate or the short side guard plate, and the threaded rod mounting base is fixed on the base plate. One end of the threaded rod is connected to the inner ring of the bearing housing, and the other end is threadedly connected to the threaded hole on the threaded rod mounting base. After the threaded rod passes through the threaded rod mounting base, a handwheel is fixed at its end.

6. The forming process for the rough surface of the precast wall panel according to claim 1, characterized in that, A brush is installed inside the rebar groove.