UHPC board forming device
By using UHPC prefabricated frames and fiber webs in the UHPC board molding device and using the extrusion forming technology of the pushing mechanism, the problem of uneven distribution of fiber webs during the UHPC board molding is solved, and the high strength, high quality and flat surface of the UHPC board is achieved.
Patent Information
- Application Number
- CN202420639130.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The existing UHPC board molding technology has the problems of poor quality production and uneven distribution of fiber webs during the whole board, which affects the strength and surface flatness of a single UHPC board.
UHPC plate forming device including molding mold, UHPC prefabricated frame, fiber web, push plate and pushing mechanism is adopted. UHPC prefabricated frame and fiber web are inserted through the UHPC plate forming groove formed by the push plate and the forming mold. The UHPC prefabricated frame and fiber web are extruded by the pushing mechanism to make the fiber web evenly distributed in the concrete.
The efficient molding of UHPC board is achieved, and the fiber mesh is evenly distributed in a single UHPC board, which improves the strength and quality of UHPC board, while reducing bubbles and improving the flatness of the finished product.
Smart Images
Figure CN222920805U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of UHPC board forming, and particularly relates to a UHPC board forming device. Background Art
[0002] The UHPC board refers to an Ultra-High Performance Concrete board, also known as an ultra-high strength concrete board; it is a concrete material composed of specially proportioned cement, fine sand, fine aggregate and additives; the UHPC board has excellent mechanical properties, including high strength, high compressive strength, high tensile strength and high flexural strength, etc.
[0003] At present, the UHPC board is mainly made in a single piece by a mold, and its surface will be relatively rough and the quality will be relatively poor; if a thicker UHPC whole board is formed and then divided into single UHPC boards, the surface of the UHPC board will be relatively smooth and the forming quality will be relatively good. However, when forming a thicker UHPC whole board, it is difficult to evenly distribute the fiber mesh therein, and there are air bubbles inside the UHPC, resulting in affecting the strength and surface flatness of the single UHPC board. Summary of the Utility Model
[0004] The utility model aims to provide a UHPC board forming device to solve the problems that the quality of the currently separately made UHPC board is relatively poor and the fiber mesh in the UHPC whole board is difficult to be evenly distributed during the production of the whole board, which affects the strength of the single UHPC board.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a UHPC board forming device, including a forming mold, a UHPC prefabricated frame, a fiber mesh, a push plate and a pushing mechanism. The push plate is located inside the forming mold, and the push plate and the forming mold form a UHPC board forming groove. The UHPC board forming groove is used for inserting the UHPC prefabricated frame and the fiber mesh. The UHPC prefabricated frame and the fiber mesh are inserted into the UHPC board forming groove at intervals. The UHPC board forming groove is used for containing UHPC concrete. The pushing mechanism is used to control the movement of the push plate inside the forming mold to extrude the UHPC prefabricated frame and the fiber mesh. A locking part for fixing the push plate on the forming mold is arranged on the push plate.
[0006] Principle of this solution: First, place the push plate into the forming mold. The push plate and the forming mold form a UHPC plate forming groove. Then, the pushing mechanism is in close contact with the push plate, and UHPC concrete is injected into the UHPC plate forming groove to a preset depth position. Then, the UHPC precast frames and fiber meshes are inserted into the UHPC plate forming groove at intervals. At both outermost ends of the whole plate formed in the UHPC forming groove are UHPC precast frames. The UHPC concrete fills the pores on the fiber mesh. Repeat the process of inserting the UHPC precast frames and fiber meshes into the UHPC plate forming groove. After placing the UHPC precast frames and fiber meshes, start the pushing mechanism to drive the push plate to move, squeezing the UHPC precast frames and fiber meshes together. After the UHPC precast frames and fiber meshes enter the UHPC plate forming groove, they will squeeze the UHPC concrete to its top, level it at the top, and use the locking parts to fix the push plate on the forming mold. After the UHPC concrete is formed, move the forming mold and the push plate for subsequent concrete curing. After the curing is completed, demold and cut according to the UHPC precast frame to produce a plurality of single UHPC plates.
[0007] Advantages of this solution: The frame body and the fiber mesh are distributed at intervals for forming, enabling the rapid forming of the UHPC whole plate; the demolded and formed UHPC plates are more standard, and positioning and cutting along the UHPC precast frame are more convenient and fast, improving the production efficiency of UHPC plates, and at the same time making the fiber mesh evenly distributed in the single UHPC plate; the UHPC precast frame can be used for the process production of UHPC plates, improving the production efficiency of UHPC plates; by extruding and forming the UHPC plate, the concrete moves from bottom to top, reducing air bubbles and making the inside of the UHPC plate more solid, improving the quality of the UHPC plate.
[0008] Preferably, the UHPC precast frame is spliced by UHPC precast strips. The UHPC precast strips are convenient to manufacture, thus facilitating the splicing and manufacture of the UHPC precast frame.
[0009] Preferably, the number of fiber meshes between the UHPC precast frames is at least 1. Multiple fiber meshes can be arranged according to actual needs to improve the strength of the UHPC plate.
[0010] Preferably, the forming mold includes a fixed plate, a moving plate and a bottom plate. The fixed plates are symmetrically fixed on the bottom plate. The moving plate is detachably connected to one end of the bottom plate. The moving plate is located between the fixed plates. The push plate, the moving plate, the bottom plate and the fixed plate form a UHPC plate forming groove. When demolding the UHPC plate, the moving plate can be detached to facilitate demolding; using the push plate, the moving plate, the bottom plate and the fixed plate to form a UHPC plate forming groove, the pushing mechanism can conveniently control the movement of the push plate.
[0011] Preferably, the fixing plate and the moving plate have the same height, and the height of the UHPC precast frame is less than that of the fixing plate. The UHPC precast frame will squeeze the UHPC concrete in the molding die, thus avoiding the direct leakage of UHPC concrete from the molding die and causing waste of raw materials.
[0012] Preferably, the pushing mechanism includes a push rod and a pushing cylinder that drives the push rod to move. The push rod is in close contact with the push plate, and the push rod is located at the center of the push plate.
[0013] Preferably, a plurality of positioning blocks are provided at the end of the push plate away from the UHPC precast frame, and the positioning blocks are evenly distributed on the push plate. The moving direction of the push block can be conveniently observed and controlled through the positioning blocks.
[0014] Preferably, a discharge port is provided on the fixing plate. The discharge port is located at the end of the fixing plate close to the moving plate and above the UHPC precast frame. The UHPC concrete extruded by the UHPC precast frame and the fiber mesh is directly discharged through the discharge port for utilization; the discharge port facilitates the collection of this part of UHPC concrete.
[0015] Preferably, the cross-sectional area of the fiber mesh is smaller than that of the UHPC precast frame.
[0016] Preferably, the depth of the UHPC concrete contained in the molding die is greater than the height of the UHPC precast frame. In this way, the fiber mesh can be covered with UHPC concrete, improving the strength and quality of UHPC. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of an embodiment of the present invention.
[0018] Figure 2 is a top view schematic diagram of an embodiment of the present invention.
[0019] Figure 3 is a side view schematic diagram of an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The following is further detailed through specific embodiments:
[0021] The reference numerals in the accompanying drawings of the specification include: molding die 1, fixing plate 11, moving plate 12, bottom plate 13, UHPC precast frame 2, fiber mesh 3, push plate 4.
[0022] Embodiment:
[0023] A UHPC plate forming device, as shown in Figure 1 , Figure 2 and Figure 3As shown in the figure, it includes a forming die 1, a UHPC precast frame 2 and a fiber mesh 3. The forming die 1 includes a fixed plate 11, a moving plate 12 and a bottom plate 13. The fixed plate 11 is symmetrically fixed on the bottom plate 13. The moving plate 12 is arranged at one end of the bottom plate 13 and is located between the fixed plates 11. The moving plate 12 is detachably connected to the bottom plate 13, and specifically, a pin can be used. When demolding the UHPC plate, the moving plate 12 can be detached to facilitate demolding. A locking handle is also provided on the fixed plate 11, and the locking handle is used to lock the moving plate 12 and the fixed plate 11.
[0024] It further includes a push plate 4. The push plate 4 is located at the end of the bottom plate 13 far from the moving plate 12 and is located between the fixed plates 11. The push plate 4, the moving plate 12, the bottom plate 13 and the fixed plates 11 are hermetically formed to form a UHPC plate forming groove. By moving the push plate 4, the UHPC precast frame 2 and the fiber mesh 3 on the bottom plate 13 are extruded to form a relatively thick UHPC integral plate.
[0025] A locking member for fixing the push plate 4 on the forming die 1 is provided on the push plate 4. The locking member can specifically be a locking handle. By changing the position of the locking handle, it is convenient to fix the push plate 4 on the fixed plate 11. In this embodiment, after the push plate 4 extrudes the UHPC precast frame 2 and the fiber mesh 3 and vibrates them densely, the push plate 4 is fixed on the fixed plate 11, and then the overall die is moved for subsequent concrete curing. At this time, the next UHPC integral plate is made in the next forming die 1.
[0026] The fixed plate 11 and the moving plate 12 have the same height, and the height of the UHPC precast frame 2 is less than the height of the fixed plate 11. The UHPC precast frame 2 will extrude the UHPC concrete in the forming die 1, which can avoid the situation that the UHPC concrete directly leaks out of the forming die 1, resulting in waste of raw materials.
[0027] The UHPC plate forming groove is used to insert the UHPC precast frame 2 and the fiber mesh 3. The UHPC precast frame 2 and the fiber mesh 3 are inserted into the forming die 1 at intervals. In this embodiment, fibers can also be directly placed between the UHPC precast frames 2 to replace the fiber mesh 3 for forming the UHPC plate. The forming die 1 is used to hold the UHPC concrete. The UHPC precast frame 2 in this embodiment is spliced by strip plates formed by cutting UHPC concrete, with low cost and convenient production. The UHPC precast frame 2 in this embodiment can also be integrally formed by UHPC concrete. The surface of the UHPC precast frame 2 made by this method is relatively smooth, and the corresponding method can be selected according to the actual situation for making the UHPC precast frame 2.
[0028] Among them, the number of fiber meshes 3 located between the UHPC prefabricated frames 2 is at least 1. Multiple fiber meshes 3 can be arranged according to actual needs to improve the strength of the UHPC board. In this embodiment, specifically 1 fiber mesh 3 is arranged. Among them, the fiber mesh 3 is a mesh woven from steel fibers, glass fibers or polyoxymethylene fibers.
[0029] The depth of the UHPC concrete contained in the UHPC board forming groove is greater than the height of the UHPC prefabricated frame 2. In this way, the fiber mesh 3 can be covered with UHPC concrete, improving the strength and quality of the UHPC.
[0030] The forming mold 1 is provided with a discharge port, which is specifically arranged on the fixed plate 11. The discharge port is located at the end of the fixed plate 11 close to the moving plate 12 and above the UHPC prefabricated frame 2. The UHPC concrete extruded from the UHPC prefabricated frame 2 and the fiber mesh 3 is directly discharged through the discharge port for utilization; the discharge port facilitates the collection of this part of the UHPC concrete. The discharge port is connected with a discharge pipe to facilitate the collection of the UHPC concrete.
[0031] The cross-sectional area of the fiber mesh 3 is smaller than the cross-sectional area of the UHPC prefabricated frame 2.
[0032] It further includes a pushing mechanism. The pushing mechanism includes a push rod and a pushing cylinder that drives the push rod to move. The push rod is in close contact with the push plate 4 and is located at the center of the push plate 4. The movement of the push plate 4 is conveniently controlled through the pushing cylinder and the push rod. The push rod is specifically fixedly connected to the piston rod of the pushing cylinder by bolts. A rubber protective sleeve is provided on the contact surface between the push rod and the push plate 4 to reduce the frictional damage between the push rod and the push plate 4. When the pushing mechanism is started, the pushing mechanism makes the push plate 4 squeeze the UHPC prefabricated frame 2 and the fiber mesh 3 together. The paired UHPC frames, the fiber mesh 3 inside them and the concrete form a single UHPC board. After the UHPC prefabricated frame 2 and the fiber mesh 3 enter the UHPC board forming groove, they will squeeze the UHPC concrete to its top. By extruding and forming the UHPC board, the concrete moves from bottom to top, reducing air bubbles and making the inside of the UHPC board more solid, improving the quality of the UHPC board.
[0033] Among them, the axis of the push plate 4 coincides with the axis of the moving plate 12.
[0034] Several positioning blocks are provided at the end of the push plate 4 away from the UHPC prefabricated frame 2, and the positioning blocks are evenly distributed on the push plate 4. The movement direction of the push block is conveniently observed and controlled through the positioning blocks. In this embodiment, 3 positioning blocks are provided on the push plate 4, and the 3 positioning blocks are respectively located on both sides and the middle of the push plate 4.
[0035] In this embodiment, in order to facilitate subsequent demolding, a demolding agent is applied to the inner wall of the forming mold 1 and the contact surface between the push block and the UHPC prefabricated frame 2. The demolding agent uses an existing demolding agent and will not be described in detail here.
[0036] Specific implementation process:
[0037] In this embodiment, first, the bottom plate 13, the moving plate 12, and the fixed plate 11 are assembled together. Then, the pushing plate 4 is placed on the bottom plate 13, so that the pushing plate 4, the moving plate 12, the bottom plate 13, and the fixed plate 11 are hermetically sealed with each other to form a UHPC plate forming groove. Then, the pushing cylinder is started, and the push rod is in close contact with the pushing plate 4. After the assembly and positioning are completed, UHPC concrete is injected into the UHPC plate forming groove to a preset depth position. Then, the UHPC precast frames 2 and the fiber meshes 3 are longitudinally inserted into the UHPC plate forming groove at intervals. The outermost sides of both ends of the whole plate formed in the UHPC forming groove are UHPC precast frames 2. The UHPC concrete fills the pores on the fiber meshes 3. The process of inserting the UHPC precast frames 2 and the fiber meshes 3 into the UHPC plate forming groove is repeated. After the insertion of the UHPC precast frames 2 and the fiber meshes 3 is completed, the pushing cylinder and the push rod control the pushing plate 4 to move towards the moving plate 12, squeezing the UHPC precast frames 2 and the fiber meshes 3 together. The UHPC precast frames 2 and the fiber meshes 3 are closely attached to each other, and a single UHPC plate with a standard size is formed by using a pair of UHPC precast frames 2.
[0038] In this solution, positioning through the UHPC precast frame 2 can make the fiber meshes 3 evenly distributed in a single UHPC plate; through the UHPC precast frame 2, UHPC plates can be produced in a process flow manner, improving the production efficiency of UHPC plates; by using the extrusion molding method for UHPC plates, the air bubbles inside the UHPC plates can be reduced, making the inside of the UHPC plates more solid and improving the quality of UHPC plates; by using the UHPC precast frame 2 as a mold to form a single UHPC plate, the demolded UHPC plate is more standard, and cutting along the UHPC precast frame 2 is more convenient and fast, improving the production efficiency of UHPC plates.
[0039] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made. In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The scope of protection required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.
Claims
1. A UHPC board forming device, characterized in that: It includes a forming mold, a UHPC prefabricated frame, a fiber mesh, a push plate and a pushing mechanism, wherein the push plate is located in the forming mold, and the push plate and the forming mold form a UHPC board forming groove, the UHPC board forming groove is used to insert the UHPC prefabricated frame and the fiber mesh, the UHPC prefabricated frame and the fiber mesh are inserted into the UHPC board forming groove at intervals, the UHPC board forming groove is used to hold UHPC concrete, the pushing mechanism is used to control the push plate to move and extrude the UHPC prefabricated frame and the fiber mesh in the forming mold, and a locking member for fixing the push plate on the forming mold is provided on the push plate.
2. A UHPC board forming device according to claim 1, characterized in that: The UHPC prefabricated frame is formed by splicing UHPC prefabricated strips.
3. A UHPC board forming device according to claim 1, characterized in that: The number of fiber meshes located between the UHPC prefabricated frames is at least one.
4. A UHPC board forming device according to claim 1, characterized in that: The forming mold includes a fixed plate, a movable plate and a bottom plate, wherein the fixed plate is symmetrically fixed on the bottom plate, the movable plate is detachably connected to one end of the bottom plate, the movable plate is located between the fixed plates, and the push plate, the movable plate, the bottom plate and the fixed plate form a UHPC board forming groove.
5. A UHPC board forming device according to claim 4, characterized in that: The fixed plate and the movable plate have the same height, and the UHPC prefabricated frame has a height less than that of the fixed plate.
6. A UHPC board forming device according to claim 4, characterized in that: The pushing mechanism comprises a push rod and a pushing cylinder for driving the push rod to move, the push rod is in close contact with the push plate, and the push rod is located at the center of the push plate.
7. A UHPC board forming device according to claim 6, characterized in that: The push plate is provided with a plurality of positioning blocks at an end away from the UHPC prefabricated frame, and the positioning blocks are evenly distributed on the push plate.
8. A UHPC board forming device according to claim 4, characterized in that: The fixed plate is provided with a discharge port, the discharge port is located at the fixed plate close to the end of the movable plate, and the discharge port is located above the UHPC prefabricated frame.
9. The UHPC board forming device according to claim 1, characterized in that: The cross-sectional area of the fiber mesh is smaller than the cross-sectional area of the UHPC prefabricated frame.
10. The UHPC board forming device according to claim 1, characterized in that: The depth of the UHPC concrete contained in the UHPC board forming groove is greater than the height of the UHPC prefabricated frame.