Preform top protrusion molding mechanism and preform top molding apparatus

Abstract

The application relates to a preform top protrusion molding mechanism and a preform top molding device, wherein the preform top protrusion molding mechanism comprises a molding die, the molding die comprises at least two longitudinal molding strips arranged in a transverse interval mode; the longitudinal molding strip is provided with a first die wall towards a forming area of the preform top protrusion, the first die wall comprises a first blunt edge molding surface, the first blunt edge molding surface is used for forming a blunt edge connecting the upper surface and the side surface of the preform top protrusion in the forming area, and the top surface of the longitudinal molding strip is flush with or higher than the top surface of the preform top protrusion. In the preform upper surface molding process, the side edge of the preform top protrusion can be formed into a blunt edge structure, so that the problem that the edge of the preform is prone to damage during transportation or hoisting can be avoided, and the molding can be smoothly demolded after the molding is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete pouring equipment, and particularly relates to a precast component top protruding modeling mechanism and a precast component top modeling equipment. BACKGROUND

[0002] The precast component refers to a steel, wood or concrete component preformed according to design specifications in a factory or on site, and for the field of construction, the precast component of a steel-concrete structure is most commonly used. The precast component is heavy in weight, and therefore needs to be hoisted during construction or assembly. The commonly used hoisting is to bind the precast component with a rope and then hoist and transfer the precast component by using a hoisting machine. For the precast component with sharp edges, the rope is easy to wound the edges of the precast component during hoisting, resulting in the problem that the edges contacted by the rope are damaged, which affects the overall aesthetic level of the precast component and also affects the local structural strength of the precast component to some extent.

[0003] Meanwhile, the mold at the sharp edge during the production of the precast component also has the problem of difficult demolding. The stress is concentrated at the edges during demolding, and there is the problem of sticking material, resulting in the problem of material deficiency of the finished precast component at the edges, and subsequent repair treatment is needed, which increases the process.

[0004] In addition, the damage rate of the sharp edges of the precast component is relatively high during transportation.

[0005] Therefore, reducing the sharp edges of the precast component can improve the overall integrity and aesthetic level of the precast component. For the precast component produced by non-centrifugal production, the base part is usually molded by a mold, and the sharp edges can be directly optimized and reduced by the base mold, and the upper part needs to be molded additionally, and the sharp edges also need to be reduced during the additional molding, and how to quickly mold the upper surface of the precast component with weak sharp edges is a technical problem to be solved by those skilled in the art. SUMMARY

[0006] The present application aims to provide a precast component top protruding modeling mechanism and a precast component top modeling equipment, which can form blunt edge structures on the side edges of the precast component during the modeling of the upper surface of the precast component, can not only avoid the problem that the edges of the precast component are easy to be damaged during transportation or hoisting, but also facilitate smooth demolding after the modeling is completed.

[0007] To solve the above technical problems, the application provides a molding mechanism for a top protrusion of a prefabricated component, which comprises a molding die, wherein the molding die comprises at least two longitudinal molding strips arranged in a transverse direction; the longitudinal molding strips are provided with first die walls towards a molding area of the top protrusion of the prefabricated component, and the first die walls comprise first blunt edge molding surfaces, which are used to mold blunt edges of the top protrusion of the prefabricated component at the molding area; and the top surfaces of the longitudinal molding strips are flush with or higher than the top surface of the top protrusion of the prefabricated component.

[0008] The longitudinal molding strips are arranged along the arrangement direction of the side die plate of a bottom die (a die for preparing a base of the prefabricated component), and each longitudinal molding strip is arranged above the side die plate of the bottom die; a material distribution mechanism is arranged above the molding die and can distribute material on the upper surface of the base of the prefabricated component; then the top protrusion is formed by the molding die, and specifically, the two longitudinal molding strips of the molding die are used to mold and preserve the two side edges (the junctions of the upper surface and the side surface) of the top protrusion of the prefabricated component from both sides. Since the two opposite surfaces of the adjacent longitudinal molding strips are provided with the first die walls, the first blunt edge molding surfaces of the first die walls can form a structure that gradually shrinks from bottom to top at the molding area, which can cooperate with the side edges of the top protrusion of the prefabricated component inside the structure, so that the structure at the side edges corresponds to the first blunt edge molding surfaces of the first die walls, that is, the side edges between the upper surface and the side surface of the top protrusion of the prefabricated component form a blunt edge structure, so that the side edges of the prefabricated component are weakly sharp-edged, which can not only avoid the problem that the edges of the prefabricated component are easily damaged during transportation or hoisting, but also facilitate smooth demolding after molding.

[0009] Preferably, the molding mechanism further comprises a frame, and the molding die is connected to the frame; the longitudinal molding strips are arranged in parallel between the longitudinal molding strips; and the molding die further comprises at least one transverse molding strip intersecting with the longitudinal molding strips.

[0010] Preferably, the transverse molding strips are provided with second die walls inclined to the central axis of the prefabricated component towards the molding area, and the second die walls comprise second blunt edge molding surfaces.

[0011] Preferably, the second blunt edge molding surfaces are connected to the adjacent first blunt edge molding surfaces, and the first blunt edge molding surfaces and the second blunt edge molding surfaces comprise inclined surface segments and / or arc surface segments.

[0012] Preferably, the number of the transverse molding strips is at least two, and the transverse molding strips are arranged in a longitudinal direction; and the adjacent two transverse molding strips and the adjacent two longitudinal molding strips can enclose the molding area.

[0013] Preferably, the shaping mold further comprises an end shaping strip, which is parallel to the transverse shaping strips and fixedly connected with the longitudinal shaping strips, and the end shaping strip, a transverse shaping strip adjacent to the end shaping strip and two adjacent longitudinal shaping strips can enclose a cloth area for forming a top protrusion of one end of the prefabricated component.

[0014] Preferably, the end shaping strip is fixedly connected with the end of the longitudinal shaping strip, and the bottom surface of the end shaping strip is not lower than the bottom surface of the longitudinal shaping strip.

[0015] Preferably, the shaping mold is detachably connected with the frame through the end shaping strip.

[0016] Preferably, at least one of the transverse shaping strips is movable along the longitudinal direction.

[0017] Preferably, the transverse shaping strip movable along the longitudinal direction comprises a connecting strip and a segmented structure arranged between each two adjacent longitudinal shaping strips, the connecting strip is fixedly connected with the upper end surface of each segmented structure, and the segmented structure is provided with the second mold wall; the connecting strip is arranged on the longitudinal shaping strip and can slide or roll with the longitudinal shaping strip, the end of the segmented structure is slidably attached to the first mold wall of the two adjacent longitudinal shaping strips, and the segmented structure is detachably connected with the connecting strip.

[0018] Preferably, the shaping mechanism further comprises a driving part for driving the transverse shaping strip to move along the longitudinal direction.

[0019] Preferably, the driving part is arranged on the frame, and the driving part is detachably connected with the transverse shaping strip and / or the frame.

[0020] Preferably, the two ends of the transverse shaping strip movable along the longitudinal direction are respectively provided with the driving parts capable of synchronous action; the driving part comprises a driving member and a connecting rod, the connecting rod connects the execution part of the driving member and the transverse shaping strip, and the execution part of the driving member can drive the transverse shaping strip to reciprocate along the longitudinal direction; the driving member adopts any one of a telescopic cylinder, an electric telescopic rod, a ball screw nut mechanism and a gear and rack linear transmission mechanism.

[0021] Preferably, at least one roller is arranged on the connecting rod, and the connecting rod is in rolling contact with the frame through the roller.

[0022] Preferably, at least one roller is arranged on the transverse shaping strip, and the transverse shaping strip is in rolling contact with the frame through the roller.

[0023] Preferably, the shaping mechanism further comprises a lifting device arranged above the frame, which is used for lifting the frame.

[0024] And / or, the frame is further provided with an ear.

[0025] The application provides a prefabricated component top molding device, which comprises the prefabricated component top protruding molding mechanism and a material distributing mechanism above the molding mechanism.

[0026] The prefabricated component top molding device with the molding mechanism has similar technical effects to the molding mechanism, and details are not described herein again for the sake of brevity. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of a prefabricated component top protruding molding mechanism provided by an embodiment of the application;

[0028] Figure 2 is Figure 1 an enlarged view of A in FIG.

[0029] Figure 3 is a structural schematic view of a molding mechanism;

[0030] Figure 4 is Figure 3 a partial top view of FIG.

[0031] Figure 5 is Figure 3 a partial bottom view of FIG.

[0032] Figures 6-8 is a structural schematic view of a mold wall;

[0033] Figure 9 is a structural schematic view of a driving part.

[0034] ATTACHMENT Figures 1-9 In the drawings, the following signs are used:

[0035] 1-frame, 11-mounting seat, 12-ear;

[0036] 2-molding mechanism, 21-longitudinal molding strip, 22-transverse molding strip, 221-segmented structure, 222-connecting strip, 23-molding area, 24a-first mold wall, 24b-second mold wall, 25-end molding strip, 26-material distributing area;

[0037] 3-driving part, 31-driving piece, 32-connecting rod;

[0038] 4-roller;

[0039] 5-lifting device. DETAILED DESCRIPTION

[0040] In order to make the technical solution of the present application better understood by those skilled in the art, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Reference Figures 1-9 , Figure 1 is a structural schematic view of a molding mechanism for a top protrusion of a prefabricated component provided by an embodiment of the present application; Figure 2 is Figure 1 an enlarged view of A in Figure 3 is a structural schematic view of a molding die; Figure 4 is Figure 3 a partial top view of Figure 5 is Figure 3 a partial bottom view of Figures 6-8 is a structural schematic view of a die wall; Figure 9 is a structural schematic view of a driving part.

[0042] The present application provides a molding mechanism for a top protrusion of a prefabricated component and a prefabricated component top molding device, wherein the prefabricated component top molding device comprises a material distribution mechanism and the above-mentioned molding mechanism for a top protrusion of a prefabricated component, and specifically, as shown in Figure 1 , the molding mechanism for a top protrusion of a prefabricated component comprises a molding die 2, which comprises at least two longitudinally arranged molding strips 21 arranged in a transverse direction, wherein one of the length direction and the width direction of the prefabricated component is the longitudinal direction, and the other is the transverse direction, the longitudinally arranged molding strips 21 are provided with first die walls 24a facing a molding area 23 of the top protrusion of the prefabricated component, and the first die walls 24a comprise first blunt edge molding surfaces, which are used to mold blunt edges connecting the upper surface and the side surface of the top protrusion of the prefabricated component in the molding area 23. That is, the first die walls 24a of the two longitudinally arranged molding strips 21 in the molding area can form a structure gradually tapering from bottom to top for the top protrusion of the prefabricated component.

[0043] The top surface of the longitudinal shaping strip 21 is flush with or higher than the top surface of the precast component's top protrusion. The longitudinal shaping strip 21 is arranged along the side template of the bottom mold (the mold used to prepare the precast component's base). Each longitudinal shaping strip 21 is located above the side template of the bottom mold. The material feeding mechanism is located above the shaping mold 2 and can feed material onto the upper surface of the precast component's pile base. Then, the top protrusion of the precast component is formed by shaping through the shaping mold 2. Specifically, the two longitudinal shaping strips 21 of the shaping mold can shape and maintain the shape of the two side edges (the junction of the upper surface and the side surface of the protrusion) of the protrusion (i.e., the top protrusion of the precast component) from both sides. Because the first blunt edge shaping surfaces of the two first mold walls 24a opposite to the two adjacent longitudinal shaping strips 21 can form a gradually tapering structure from bottom to top in the forming area 23, the tapering structure can cooperate with the side edge of the protrusion located inside it, so that the structure at the side edge corresponds to the first blunt edge shaping surface of the first mold wall 24a, that is, the side edge between the upper surface and the side surface of the protrusion forms a blunt edge structure. In this way, the side edge of the precast component can be weakened and sharpened, which not only avoids the problem of easy damage to the edge of the precast component during transportation or hoisting, but also facilitates smooth demolding after the shaping is completed.

[0044] In the above embodiment, the shaping mechanism further includes a frame 1, and the shaping mold 2 is connected to the frame 1. Each longitudinal shaping strip 21 is arranged parallel to the others. The shaping mold 2 also includes at least one transverse shaping strip 22, which is perpendicular to and intersects with each longitudinal shaping strip 21, forming the aforementioned molding area 23. Furthermore, the transverse shaping strip 22 has a second mold wall 24b inclined to the central axis of the precast component facing the molding area 23. The second mold wall 24b includes a second blunt-edged shaping surface, and the second blunt-edged shaping surface is connected to an adjacent first blunt-edged shaping surface.

[0045] Not all precast components have smooth, flat surfaces. For example, variable cross-section solid square piles have protrusions spaced along their length on all four sides. Because they are solid square piles, they can only be produced using non-centrifugal methods. The protrusions on the sides and bottom can be shaped using a base mold, but the protrusions on the top surface require a shaping mold 2 with both longitudinal shaping strips 21 and transverse shaping strips 22 to create the top protrusion of the precast component. The following explanation uses the shaping of a variable cross-section solid square pile as an example.

[0046] In detail, when the protrusion only includes structures located at the end of the pile foundation (such as a protrusion located in the fixed section or a protrusion located in the tensioning section), the end edge of the outer end of the protrusion does not need to be chamfered. In this case, the shaping requirements of the protrusion can be met by only one transverse shaping strip 22. Two longitudinal shaping strips 21 shape the side edges of the protrusion from both sides of the length direction. The pile end face is surrounded by the top of the fixed plate or tensioning plate and the first mold wall 24a of the two longitudinal shaping strips 21. Then, the upper surface of the base is shaped by the material laying mechanism within the area enclosed by the two longitudinal shaping strips 21, the transverse shaping strip 22 and the top of the fixed plate or tensioning plate. The two longitudinal shaping strips 21 shape the side edges of the protrusion, and the transverse shaping strip 22 transitions the protrusion to the adjacent base without protrusion, so that the protrusion at the pile end forms a blunt edge structure except for the end edge.

[0047] When the protrusion also includes a middle section located in the middle of the pile foundation, at least two transverse shaping strips 22 need to be provided. In this embodiment, two transverse shaping strips 22 are preferred. The protrusion at the pile end is shaped in the same way as above. The protrusion in the middle section is shaped by forming a forming area 23 with blunt edges on all four sides by enclosing two longitudinal shaping strips 21 and two transverse shaping strips 22. The upper surface of the protrusion formed by the material of the forming area 23 is shaped to form a chamfered structure that gradually narrows from bottom to top, that is, the side edges of the protrusion in the middle section are all formed with blunt edges.

[0048] In other words, in this embodiment, the longitudinal shaping strip 21 and the transverse shaping strip 22 are arranged so that the side edges of the protrusion, except for the end edge, form a structure that matches the blunt edge shaping surface of the mold wall. This facilitates the softening of sharp edges on the side edges of the protrusion at the top of the precast component, except for the end edge. This not only avoids the problem of damage to sharp edges during transportation or hoisting of the precast component, but also facilitates smooth demolding after shaping. In addition, the blunt edge transition between the protrusion and the non-protrusion ensures the strength of the connection between the pile body and the protrusion. At the same time, the protrusion is not easily damaged during pile driving.

[0049] Of course, in this embodiment, the transverse shaping strip 22 may not have a second mold wall 24b; the shaping can be achieved solely through the first mold wall 24a of the longitudinal shaping strip 21, which shapes the two sides of the protrusion along its length. Specifically, in this embodiment, the blunt edge shaping surface structure of the mold wall is not limited, such as... Figures 6-8 As shown, it can be set as an arc surface, an inclined surface, or a structure that includes both an inclined surface and an arc surface. Furthermore, in this embodiment, the first blunt edge shaping surface of the first mold wall 24a of the longitudinal shaping strip 21 and the second blunt edge shaping surface of the second mold wall 24b of the transverse shaping strip 22 can be the same or different.

[0050] In addition, there is no limit to the number of longitudinal shaping strips 21, which can be set according to the number of bottom molds. When there is only one bottom mold, only one forming area 23 is needed when shaping the protrusion of the pile foundation through the shaping mechanism, namely two longitudinal shaping strips 21 and two transverse shaping strips 22. When there are two or more bottom molds arranged side by side, the number of forming areas 23 required corresponds to the number of bottom molds. Each forming area 23 is arranged side by side in sequence. The longitudinal shaping strips 21 can be shared between two adjacent bottom molds. At this time, the two side walls of the longitudinal shaping strips 21 are provided with first mold walls 24a. The top protrusion of the precast component is simultaneously formed on the top of the pile foundation of each bottom mold through the precast component top shaping equipment.

[0051] In the above embodiments, such as Figures 3-5 As shown, the molding mold 2 also includes an end molding strip 25, which is parallel to the transverse molding strip 22 and fixed to each longitudinal molding strip 21. The end molding strip 25, the transverse molding strip 22 adjacent to the end molding strip 25, and the two adjacent longitudinal molding strips 21 can enclose and form a fabric area 26 with a raised top at one end of the precast component. This fabric area 26 can be used to shape the raised part of the fixed section or tensioning section of the precast pile. The end molding strip 25 does not have a blunt edge molding surface. When shaping the end, it can be shaped with the help of a fixing plate or tensioning plate, which can also play a positioning role. Specifically, the top surface of the fixing plate or tensioning plate abuts against the bottom surface of the end molding strip 25, and at the same time, the end surface of the fixing plate or tensioning plate facing the base abuts against the end surface of the longitudinal molding strip 21, ensuring that the end surface of the raised part of the fixed section or tensioning section has a planar structure. Of course, the end edge of the raised part of the fixed section or tensioning section can also be blunted, that is, a blunt edge molding surface can be provided on the end molding strip 25.

[0052] Furthermore, in this embodiment, taking the example that the end edge of the precast component does not require blunt edge treatment, the end shaping strip 25 is fixedly connected to the end of the longitudinal shaping strip 21, and the bottom surface of the end shaping strip 25 is not lower than the bottom surface of the longitudinal shaping strip 21. Specifically, the end shaping strip 25 can be fixed to the upper end surface of the longitudinal shaping strip 21 and connected to the frame 1. Alternatively, in this embodiment, the relative fixed position of the end shaping strip 25 and the longitudinal shaping strip 21 is not limited, but the end shaping strip 25 is placed at the end of the longitudinal shaping strip 21 compared to the end of the longitudinal shaping strip 21. In the middle part, the overall size of the shaping mechanism can be reduced because if the end shaping strip 25 is set in the middle of the longitudinal shaping strip 21, the part between the end shaping strip 25 and the end of the longitudinal shaping strip 21 does not participate in the shaping. Therefore, in this embodiment, the end shaping strip 25 is set at the end of the longitudinal shaping strip 21 and directly connected to the frame 1. This can reduce the overall volume of the shaping mechanism while satisfying the requirements of the forming area 23 and the fabric area 26 with the same size range, thereby achieving the purpose of simple structure, low cost and light weight.

[0053] Furthermore, in this embodiment, the molding mold 2 is detachably connected to the frame 1 via the end molding strip 25. When the molding mold 2 wears out after long-term use and needs to be replaced, or when different sizes of molding areas are required for different bottom molds or protrusions of different widths, it is not necessary to replace the frame 1; only the molding mold 2 needs to be replaced, thereby further improving economy and reducing costs.

[0054] In the above embodiment, at least one transverse shaping strip 22 can be adjusted along the longitudinal direction. That is, at least one transverse shaping strip 22 can move along the length direction of the longitudinal shaping strip 21, thereby changing the length of the forming area 23. This allows it to be adapted to the shaping of top protrusions of prefabricated components of different lengths. During production, for top protrusions of prefabricated components of different lengths, there is no need to change the shaping mechanism; only the position of the transverse shaping strip 22 needs to be adjusted to meet the requirements. The structure is simple, flexible, and low-cost. Furthermore, since the position of the transverse shaping strip 22 is adjustable, the size of the fabric 26 and the forming area 23 can be adjusted to meet the shaping of protrusions of different sizes, further improving flexibility.

[0055] Specifically, in this embodiment, when two transverse shaping strips 22 are provided, either only one transverse shaping strip 22 can move longitudinally, or both transverse shaping strips 22 can move longitudinally. When both transverse shaping strips 22 can move, there are two scenarios: one where each transverse shaping strip 22 can move independently, and the sizes of the forming area 23 and the fabric area 26 can be adjusted; and another where the two transverse shaping strips 22 are fixed in position relative to each other, and can act as a whole to move along the length of the longitudinal shaping strip 21. In this case, the size of the fabric area 26 can be adjusted, but the size of the forming area 23 cannot be adjusted. In this embodiment, both sides of the transverse shaping strip 22 are provided with second mold walls 24b containing second blunt-edged shaping surfaces. This not only reduces the amount of transverse shaping strips 22 used, saving costs and weight, but also increases the longitudinal adjustment range of the transverse shaping strip 22.

[0056] In the above embodiments, such as Figure 4 As shown, the transverse shaping strip 22 (which can be one, two, or more) capable of moving longitudinally includes a connecting strip 222 and segmented structures 221 disposed between each pair of adjacent longitudinal shaping strips 21. The connecting strip 222 is fixedly connected to the upper end face of each segmented structure 221. The connecting strip 222 is mounted on the longitudinal shaping strip 21 and can slide or roll in contact with the longitudinal shaping strip 21. The ends of the segmented structures 221 slide against the first mold wall 24a of the two adjacent longitudinal shaping strips 21. The segmented structures 221 and the connecting strip 222 are detachably connected.

[0057] In detail, the transverse shaping strip 22 includes a segmented structure 221 disposed between two adjacent longitudinal shaping strips 21. The segmented structure 221 is provided with the aforementioned second mold wall 24b, and the number of segmented structures 221 is the same as the number of molding areas 23. The connecting strip 222 is fixedly connected to each segmented structure 221 from above, so that each segmented structure 221 can form a whole and move longitudinally. Specifically, the movement of the transverse shaping strip 22 can be achieved by moving the connecting strip 222. With this setting, the structure is relatively simple.

[0058] Specifically, the connecting strip 222 and each segment structure 221 can be a separate structure that is fixed to each other or an integrally formed structure. In this embodiment, the connecting strip 222 and the segment structure 221 are set to be detachable, which is convenient for disassembly and replacement and has good flexibility.

[0059] Alternatively, in this embodiment, each segment structure 221 can be individually fixed to the longitudinal shaping strip 21. In this case, there is no need to set the connecting strip 222; during adjustment, the position of each segment structure 221 can be adjusted. The setting of the connecting strip 222 can simplify the adjustment operation and improve the adjustment efficiency. At the same time, it can also ensure that each segment structure can move synchronously, so that the dimensions of each forming area 23 are consistent, thereby ensuring product consistency.

[0060] In the above embodiments, such as Figure 1 As shown, the shaping mechanism also includes a drive unit 3 for driving the transverse shaping strip 22 to move longitudinally. Of course, in this embodiment, the transverse shaping strip 22 can also be moved manually. The drive unit 3 simplifies manual operation and improves the efficiency of adjusting the size of the shaping area 23. In this embodiment, the drive unit 3 can be driven by a cylinder, hydraulic cylinder, motor and lead screw combination, gear and rack combination, etc., and no specific limitation is made here.

[0061] Furthermore, the drive unit 3 is mounted on the frame 1, and the drive unit 3 is detachably connected to the transverse shaping strip 22 as well as to the frame 1. When the shaping mold 2 is replaced, the drive unit 3 does not need to be replaced, and when the drive unit 3 is damaged, it can be disassembled for repair or replacement separately.

[0062] Furthermore, the two ends of the transverse shaping strip 22, which can move along the length direction of the longitudinal shaping strip 21, are respectively provided with the aforementioned driving part 3. The driving parts 3 at both ends can operate simultaneously and drive the transverse shaping strip 22 to move along the length direction of the longitudinal shaping strip 21. By having two driving parts 3 act on one transverse shaping strip 22 at the same time, the movement of the transverse shaping strip 22 can be made more stable.

[0063] Furthermore, the drive unit 3 includes a drive member 31 and a connecting rod 32, wherein the connecting rod 32 connects the actuator of the drive member 31 and the transverse shaping strip 22, and the actuator of the drive member 31 can drive the transverse shaping strip 22 to reciprocate along the length direction of the longitudinal shaping strip 21. Specifically, the drive member 31 can be any one of a telescopic cylinder, an electric telescopic rod, a ball screw and nut mechanism, or a gear and rack linear transmission mechanism. Figure 2 and Figure 9 As shown, the frame 1 is provided with a mounting base 11, and the driving component 31 is fixed on the mounting base 11 and connected to the connecting strip 222 of the transverse shaping strip 22 through the connecting rod 32. The setting of the connecting rod 32 facilitates the driving action between the driving component 31 and the transverse shaping strip 22, while also facilitating the structural layout and avoiding interference with the connecting rod 32 of the adjacent driving part 3.

[0064] Furthermore, the connecting rod 32 is provided with at least one roller 4, through which the connecting rod 32 rolls in contact with the frame 1. Since the connecting rod 32 moves together with the transverse shaping strip 22, during the movement, the connecting rod 32 can roll in contact with the frame 1 through the roller 4, avoiding direct contact between the two and causing wear. At the same time, it can also limit the movement of the connecting rod 32, ensuring its stable movement and preventing deviation.

[0065] In addition, the horizontal shaping strip 22 (connecting strip 222) is also provided with at least one roller 4. When the horizontal shaping strip 22 moves along the length direction of the longitudinal shaping strip 21, the horizontal shaping strip 22 can roll and contact the frame 1 through the roller 4. The setting of the roller 4 can avoid direct contact and wear between the horizontal shaping strip 22 and the frame 1 when it moves. At the same time, it can also limit the movement of the horizontal shaping strip 22 to ensure its stable movement and avoid deviation.

[0066] In the above embodiments, such as Figure 1 As shown, the molding mechanism also includes a lifting device 5, which is located above the frame 1 and used to raise and lower the molding mechanism. Specifically, the molding height of precast piles of different specifications is different. The lifting device 5 can adjust the height of the molding area 23 to match the bottom mold. In addition, after the top protrusion of a precast component is shaped, the molding mold 2 needs to be lifted and then moved to the top protrusion position of the next precast component for material placement. The lifting device 5 can prevent damage to the top protrusion of the shaped precast component during the movement. The molding mechanism also includes lifting lugs 12 located on the frame 1 for hoisting the molding mechanism. Specifically, there are no restrictions on the position and number of the lifting device 5 and the lifting lugs 12. Taking the lifting device 5 as an example, one lifting device 5 can be set on each of the four sides or four corners of the square frame 1, or two lifting devices 5 can be set on each of the opposite side frames, or three lifting devices 5 arranged in a triangle can be set to ensure the stable raising and lowering of the molding mechanism. The setting method of the lifting lugs 12 is similar to that of the lifting device 5, and will not be described in detail here for the sake of space.

[0067] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A shaping mechanism for a protruding top of a prefabricated component, characterized in that, The mold includes a molding mold (2), which includes at least two longitudinal molding strips (21) arranged laterally at intervals; the longitudinal molding strips (21) are provided with a first mold wall (24a) facing the forming area (23) of the top protrusion of the precast component, the first mold wall (24a) includes a first blunt edge molding surface, the first blunt edge molding surface is used in the forming area (23) to form a blunt edge connecting the upper surface and the side of the top protrusion of the precast component, and the top surface of the longitudinal molding strip (21) is flush with or higher than the top surface of the top protrusion of the precast component; The first mold wall (24a) of the two longitudinal shaping strips (21) in the forming area (23) can form a structure that gradually shrinks from bottom to top for the top protrusion of the precast component; The shaping mechanism also includes a frame (1), and the shaping mold (2) is connected to the frame (1); It also includes a lifting device (5) located above the frame (1), the lifting device (5) being used to adjust the height of the forming area (23) to match the bottom mold, the bottom mold being a mold used to prepare the precast component base.

2. The shaping mechanism for the top protrusion of the precast component according to claim 1, characterized in that, The longitudinal shaping strips (21) are arranged in parallel, and the shaping mold (2) also includes at least one transverse shaping strip (22) that intersects with the longitudinal shaping strips (21).

3. The shaping mechanism for the top protrusion of the prefabricated component according to claim 2, characterized in that, The transverse shaping strip (22) is provided with a second mold wall (24b) inclined to the central axis of the precast component facing the forming area (23), and the second mold wall (24b) includes a second blunt edge shaping surface.

4. The shaping mechanism for the top protrusion of the precast component according to claim 3, characterized in that, The second blunt edge shaped surface is connected to the adjacent first blunt edge shaped surface, and the first blunt edge shaped surface and the second blunt edge shaped surface include inclined surface segments and / or arc-shaped surface segments.

5. The shaping mechanism for the top protrusion of the precast component according to claim 2, characterized in that, The number of the horizontal shaping strips (22) is at least two, and the horizontal shaping strips (22) are arranged at intervals along the longitudinal direction; the two adjacent horizontal shaping strips (22) and the two adjacent longitudinal shaping strips (21) can enclose and form the forming area (23).

6. The shaping mechanism for the top protrusion of the precast component according to claim 2, characterized in that, The molding mold (2) also includes an end molding strip (25), which is parallel to the transverse molding strip (22) and connected and fixed to each of the longitudinal molding strips (21). The end molding strip (25), a transverse molding strip (22) adjacent to the end molding strip (25), and two adjacent longitudinal molding strips (21) can enclose and form a fabric area (26) with a raised top at one end of the prefabricated component.

7. The shaping mechanism for the top protrusion of the prefabricated component according to claim 6, characterized in that, The end shaping strip (25) is fixedly connected to the end of the longitudinal shaping strip (21), and the bottom surface of the end shaping strip (25) is not lower than the bottom surface of the longitudinal shaping strip (21).

8. The shaping mechanism for the top protrusion of the precast component according to claim 7, characterized in that, The molding mold (2) is detachably connected to the frame (1) via the end molding strip (25).

9. The shaping mechanism for the top protrusion of the precast component according to any one of claims 2-8, characterized in that, At least one of the horizontal shaping strips (22) is adjustable along the longitudinal direction.

10. The shaping mechanism for the top protrusion of the prefabricated component according to claim 9, characterized in that, The transverse shaping strip (22) capable of moving longitudinally includes a connecting strip (222) and a segmented structure (221) disposed between each two adjacent longitudinal shaping strips (21). The connecting strip (222) is connected and fixed to the upper end face of each segmented structure (221). The segmented structure (221) is provided with a second mold wall (24b), and the second mold wall (24b) includes a second blunt edge shaping surface. The connecting strip (222) is mounted on the longitudinal shaping strip (21) and can slide or roll in contact with the longitudinal shaping strip (21). The end of the segmented structure (221) slides and fits against the first mold wall (24a) of the two adjacent longitudinal shaping strips (21). The segmented structure (221) and the connecting strip (222) are detachably connected.

11. The shaping mechanism for the top protrusion of the prefabricated component according to claim 9, characterized in that, The shaping mechanism also includes a drive unit (3) for driving the horizontal shaping strip (22) to move longitudinally.

12. The shaping mechanism for the top protrusion of the prefabricated component according to claim 11, characterized in that, The drive unit (3) is disposed on the frame (1), and the drive unit (3) is detachably connected to the horizontal shaping strip (22) and / or the frame (1).

13. The shaping mechanism for the top protrusion of the prefabricated component according to claim 11, characterized in that, Both ends of the transverse shaping strip (22) that can move longitudinally are respectively provided with the driving part (3) that can move synchronously. The drive unit (3) includes a drive member (31) and a connecting rod (32). The connecting rod (32) connects the actuator of the drive member (31) and the transverse shaping strip (22). The actuator of the drive member (31) can drive the transverse shaping strip (22) to reciprocate along the longitudinal direction. The drive component (31) can be any one of the following: telescopic cylinder, electric telescopic rod, ball screw and nut mechanism, or gear and rack linear transmission mechanism.

14. The shaping mechanism for the top protrusion of the precast component according to claim 13, characterized in that, The connecting rod (32) is provided with at least one roller (4), and the connecting rod (32) makes rolling contact with the frame (1) through the roller (4).

15. The shaping mechanism for the top protrusion of the prefabricated component according to claim 14, characterized in that, The horizontal shaping strip (22) is also provided with at least one roller (4), and the horizontal shaping strip (22) makes rolling contact with the frame (1) through the roller (4).

16. The shaping mechanism for the top protrusion of the precast component according to any one of claims 2-8, characterized in that, The frame (1) is also provided with lugs (12).

17. A precast component top shaping device, characterized in that, It includes a shaping mechanism for the top protrusion of the prefabricated component as described in any one of claims 1-16, and a fabrication mechanism located above the shaping mold (2) of the shaping mechanism.

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