Cement prefabricated wall production mold and production method

Abstract

The invention relates to the technical field of prefabricated wall production, in particular to a cement prefabricated wall production mold and a production method.The cement prefabricated wall production mold comprises a bottom frame and further comprises two side molds which are symmetrically arranged on the bottom frame and can be driven by a power mechanism arranged on the bottom frame to move; the sliding block is connected with the power mechanism, the cross arm is fixed to the side mold, a sliding groove is formed in the cross arm, the sliding block slides in the sliding groove, and when the power mechanism acts, the sliding block slides in the sliding groove and drives the cross arm to drive the side mold to execute mold splitting action after the sliding block moves to the end, away from the side mold, of the sliding groove; the jacking mechanism is used for supporting the wall body in the vertical direction, so that the wall body and the inner wall of the mold generate relative movement, the adhesion state is effectively broken, adhesion points are weakened, force needed during horizontal demolding is reduced, the damage risk of the wall body is reduced, and horizontal displacement of the wall body in the hoisting process can be effectively limited; and collision with surrounding objects due to deflection and shaking of the wall body is prevented, and the damage risk of the wall body and the mold is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of precast wall production, and specifically to a production mold and production method for cement precast walls. Background Technique

[0002] Cement precast walls are wall components precast in factories and assembled on-site, with advantages such as high efficiency, environmental protection, and excellent quality. They are widely used in fields such as construction, municipal engineering, and industry, and are usually produced with the aid of assembled molds. When using assembled molds to produce precast walls, a mold release agent is sprayed on the inner wall of the mold to facilitate demolding and prevent adhesion between the wall and the mold. However, the adhesion problem between the wall and the mold is not only caused by the non-use of the mold release agent, uneven spraying of the mold release agent, or problems with the quality of the mold release agent, but also related to factors such as cement ratio, pouring process, vibration process, and curing process. Therefore, in actual production, the adhesion problem between the wall and the mold usually cannot be effectively avoided and can only be minimized. Therefore, during demolding, auxiliary means are required to reduce the adverse effects on the wall and the mold caused by the adhesion problem.

[0003] Some molds are equipped with a vibration module, which vibrates the mold before demolding to promote demolding. However, long-term vibration is likely to accelerate mold wear, cause scratches or burrs on the mold surface, and reduce the mold accuracy and lifespan. This means needs to be used with caution in actual production. Common manual auxiliary means include: prying the wall with tools, knocking the wall with a rubber hammer, and multiple people cooperating to shake the mold, etc. Obviously, these means have a greater impact on production efficiency, and the work intensity is also relatively large. Moreover, manual handling has uncertainties. During the subsequent demolding process, the side mold is directly pulled out horizontally outward. At this time, if there is adhesion between the wall and the inner wall of the mold, the horizontal pulling force of the side mold will directly act on the wall. Due to the existence of the adhesion force, a part of the wall may be taken out together, resulting in deformation and defects of the wall edge, leading to poor product appearance and an increase in the defective rate. Summary of the Invention

[0004] The purpose of the present invention is to provide a production mold and production method for cement precast walls to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A production mold for cement precast walls, including a bottom frame, and further including: Side molds, two of which are symmetrically arranged on the bottom frame and can be driven by a power mechanism arranged on the bottom frame to approach or move away from the bottom mold fixed on the bottom frame. One openable and closable end mold is hinged on each side of the side mold; Connect the slider of the power mechanism and the cross arm fixed on the side mold. A chute is formed on the cross arm, and the slider slides in the chute. When the power mechanism operates, the slider slides in the chute, and after the slider moves to the end of the chute away from the side mold, it drives the cross arm to drive the side mold to perform the mold opening action. The jacking mechanism includes a jacking plate and a swinging structure. The swinging structure includes a movable member hinged on the bottom frame and connected to the jacking plate through a transmission structure. A driven plate is fixed on the movable member. The driven plate abuts against a driving wheel provided at the bottom of the slider, and a first inclined surface and a second inclined surface which are connected and cooperate with the driving wheel are further formed on the driven plate. When the slider slides in the chute, the driven plate is driven to rotate by the cooperation of the driving wheel and the first inclined surface, so that the jacking plate moves upward. When the slider abuts against the inner end of the chute, the driving wheel moves to the second inclined surface. At this time, the second inclined surface is in a horizontal state.

[0006] As a further scheme of the present invention: The power mechanism includes a hydraulic cylinder fixedly installed on the side of the bottom frame and a driving arm fixedly connected to the movable end of the hydraulic cylinder.

[0007] As a further scheme of the present invention: The driving arm is fixedly connected to the slider, and the hydraulic cylinder can drive the driving arm to drive the slider to slide in the chute.

[0008] As a further scheme of the present invention: A notch is provided on the upper part of the bottom mold, and the notch is adapted to the jacking plate. Two transmission plates which penetrate through the bottom mold and are slidably connected to the bottom mold are fixed at the bottom of the jacking plate. Each of the two transmission plates is connected to the driven plate through a set of transmission structures.

[0009] As a further scheme of the present invention: The transmission structure includes a swing arm fixedly connected to the driven plate and a telescopic arm slidably sleeved on the swing arm. One end of the telescopic arm close to the transmission plate is hinged to the transmission plate.

[0010] As a further scheme of the present invention: A plurality of groups of limiting mechanisms are respectively provided on the sides of the two side molds. The limiting mechanism includes a limiting wheel movably provided above the side mold. The limiting wheel is connected to a vertical arm movably provided on the side of the side mold through an elastic structure. A plurality of guiding blocks are fixed on the side of the side mold, and the guiding blocks are slidably fitted with the vertical arm; Wherein, a fixing plate is fixedly installed on the bottom frame, and a connecting rod is provided between the fixing plate and the vertical arm. Two ends of the connecting rod are respectively hinged to the fixing plate and the vertical arm.

[0011] As a further solution of the present invention: The elastic structure includes a guiding cylinder fixed to the vertical arm and having both ends communicating, and a telescopic column slidably sleeved with the guiding cylinder. The limiting wheel is provided at one end of the telescopic column close to the side mold, and a guiding structure is provided at the other end of the telescopic column; Wherein, a cylindrical spring sleeved on the outer periphery of the telescopic column is provided inside the guiding cylinder. One end of the cylindrical spring is connected to the inner wall of the guiding cylinder, and the other end is connected to a frustum fixedly arranged in the guiding cylinder and fixed to the telescopic column.

[0012] As a further solution of the present invention: The guiding structure includes a follower wheel installed at one end of the telescopic column away from the limiting wheel. The follower wheel abuts against a limiting plate member fixed to the side of the side mold, and a vertical surface and a third inclined surface are connected on one side of the limiting plate member facing the follower wheel.

[0013] A production method of a cement precast wall using the production mold includes the following steps: Step 1, preparation work, check the mold, clean the mold and spray a release agent on the inner surface of the mold cavity; Step 2, place the steel reinforcement cage between the two side molds; Step 3, close the mold, pour cement and vibrate; Step 4, install the top mold and perform static curing; Step 5, demold. The jacking mechanism lifts the wall, the limiting mechanism limits the side of the wall, and the wall is lifted out from between the two side molds by using a lifting tool; Step 6, check, cure and store the wall.

[0014] Compared with the prior art, the beneficial effects of the present invention are: In this application, the demolding process is divided into a first stage and a second stage. In the first stage, the jacking mechanism can drive the wall to move in the vertical direction while the side mold remains stationary, so that a relative movement in the vertical direction can be introduced before the separation of the side mold and the wall. Specifically, the jacking mechanism smoothly lifts the wall from the bottom of the wall, causing a vertical displacement between the wall and the inner wall of the mold, and the two slide relative to each other in the vertical direction. During this process, the originally firm adhesion state between the wall and the inner wall of the mold is broken, the contact pressure in the adhesion area is released, and at the same time, the relative movement in the vertical direction will generate a certain frictional force, which will slide along the contact surface between the wall and the inner wall of the mold, further weakening the remaining adhesion points; Therefore, in the second stage, the side formwork moves and separates from the wall. At this time, since most of the adhesion has been eliminated by the relative movement and friction in the vertical direction, the adhesion resistance that the side formwork needs to overcome when moving horizontally is greatly reduced, and the wall will no longer be damaged by excessive horizontal tension, thereby effectively reducing the risk of wall damage during demoulding and significantly improving the product qualification rate. In addition, the present application sets limiting wheels on both sides of the mold. After the demolding process is completed, the limiting wheels abut against the side of the wall, and the columnar spring can provide elastic supporting force. When the hoist lifts the wall, the limiting wheels on both sides of the wall can effectively limit and stabilize the wall, and can effectively limit the horizontal displacement of the wall during the lifting process, prevent the wall from colliding with surrounding objects due to swaying and shaking, reduce the risk of damage to the wall and mold, and improve the safety of lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An axonometric view of an embodiment of a mold for producing precast cement walls.

[0016] Figure 2 A schematic structural diagram of an embodiment of a cement prefabricated wall production mold.

[0017] Figure 3 A schematic structural diagram of another angle of an embodiment of a cement prefabricated wall production mold.

[0018] Figure 4 A structural schematic diagram of another angle of an embodiment of a cement prefabricated wall production mold.

[0019] Figure 5 A schematic diagram of the mold closing state of an embodiment of a cement prefabricated wall production mold.

[0020] Figure 6 This is a structural schematic diagram of a jacking mechanism and a limiting mechanism in one embodiment of a cement prefabricated wall production mold.

[0021] Figure 7 for Figure 6 Schematic diagram of the structure from another angle.

[0022] Figure 8 This is a schematic diagram of a structural explosion diagram of a jacking mechanism in one embodiment of a cement precast wall production mold.

[0023] Figure 9 for Figure 8 Schematic diagram of the structure from another angle.

[0024] Figure 10 This is a structural exploded diagram of a limiting mechanism in one embodiment of a cement prefabricated wall production mold.

[0025] Figure 11 forFigure 10 Enlarged view of the structure at position A in the middle.

[0026] In the figure: 1, bottom frame; 2, workbench; 3, side mold; 4, end mold; 5, bottom mold; 6, cross arm; 601, chute; 7, slider; 701, driving wheel; 8, driving arm; 9, hydraulic cylinder; 10, movable part; 11, driven plate; 1101, first inclined surface; 1102, second inclined surface; 12, lifting plate; 13, transmission plate; 14, swing arm; 15, telescopic arm; 16, guide block; 17, vertical arm; 18, connecting rod; 19, fixing plate; 20, limiting wheel; 21, guide cylinder; 22, telescopic column; 2201, follower wheel; 23, limiting plate part; 2301, vertical surface; 2302, third inclined surface; 24, frustum; 25, cylindrical spring. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0028] In addition, an element in the present invention is referred to as being "fixed to" or "disposed on" another element, and it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation mode.

[0029] Please refer to Figures 1 - 11 , in the embodiment of the present invention, a production mold for a cement precast wall includes a bottom frame 1, and further includes: Side molds 3, two of which are symmetrically arranged on the bottom frame 1 and can be driven by a power mechanism arranged on the bottom frame 1 to approach or move away from the bottom mold 5 fixed on the bottom frame 1. One openable and closable end mold 4 is hinged on each side of the side mold 3; A slider 7 connected to the power mechanism and a cross arm 6 fixed on the side mold 3. A chute 601 is formed on the cross arm 6, and the slider 7 slides in the chute 601. When the power mechanism operates, the slider 7 slides in the chute 601, and after the slider 7 moves to the end of the chute 601 away from the side mold 3, it drives the cross arm 6 to drive the side mold 3 to perform a mold opening action; The lifting mechanism includes a lifting plate 12 and a swinging structure. The swinging structure includes a movable member 10 hinged to the bottom frame 1 and connected to the lifting plate 12 through a transmission structure. A driven plate 11 is fixed on the movable member 10. The driven plate 11 abuts against a driving wheel 701 provided at the bottom of the slider 7. The driven plate 11 is also formed with a first inclined surface 1101 and a second inclined surface 1102 which are connected and cooperate with the driving wheel 701. When the slider 7 slides in the chute 601, the driving wheel 701 cooperates with the first inclined surface 1101 to drive the driven plate 11 to rotate, so that the lifting plate 12 moves upward. When the slider 7 abuts against the inner end of the chute 601, the driving wheel 701 moves to the second inclined surface 1102. At this time, the second inclined surface 1102 is in a horizontal state; Wherein, a plurality of groups of limiting mechanisms are provided on the sides of the two side molds respectively. During the movement of the side mold 3 away from the bottom mold 5, the limiting mechanism is triggered and can apply a lateral pressure to the formed wall.

[0030] It should also be noted that a workbench 2 is further provided on the side of one of the side molds 3. During construction, it is convenient for workers to stand on the workbench 2. After the mold closing is completed, cement is poured into the mold, and then the cement is vibrated by a vibrator; Secondly, the end mold 4 is similar to a door. When the mold is closed, the two side molds 3 move closer to each other until the bottom mold 5 is docked. Then, the end mold 4 is closed and locked by a lock. Thus, the bottom mold 5, the two side molds 3 and the two end molds 4 form a cement pouring chamber; It should be noted that during actual construction, after the vibration treatment is completed, a top mold will be installed on the top of the side mold 3, so that the pouring chamber is closed, which is convenient for subsequent maintenance and avoids the problem that the internal cement layout changes due to shaking during the transfer of the mold. Specifically, the top mold extends from the side of the end mold 4 and is fixed.

[0031] Similar to the existing mold, pulleys are provided at the bottom of the side mold 3, and slide rails adapted to the pulleys are provided on the bottom frame 1 to provide guidance for the movement of the side mold 3 during mold opening or closing.

[0032] Please refer to again Figure 2 、 Figure 6 and Figure 8 , the power mechanism includes a hydraulic cylinder 9 fixedly installed on the side of the bottom frame 1 and a driving arm 8 fixedly connected to the movable end of the hydraulic cylinder 9.

[0033] The driving arm 8 is fixedly connected to the slider 7, and the hydraulic cylinder 9 can drive the driving arm 8 to drive the slider 7 to slide in the chute 601.

[0034] Specifically, when the wall in the mold reaches a certain strength, the mold is split. First, the lock for fixing the end mold 4 is unlocked, and the hydraulic cylinder 9 operates to drive the driving arm 8 to move away from the side mold 3. This movement is divided into two stages, specifically: In the first stage, since the side mold 3 has a large weight, in this stage, the driving arm 8 drives the slider 7 to slide away from the side mold 3 in the chute 601. The side mold 3 remains stationary, and the slider 7 will trigger the jacking mechanism. The jacking mechanism applies an upward jacking force to the formed wall from below the bottom mold 5 until the slider 7 reaches the end of the chute 601 away from the side mold 3. In the second stage, the hydraulic cylinder 9 continues to drive the driving arm 8 to move. At this time, the slider 7 will drive the side mold 3 to move away from the wall on the bottom frame 1 through the cross arm 6 to achieve mold splitting. Subsequently, the wall (generally with lifting holes or embedded lifting rings reserved on the wall) is lifted out by a lifting tool (such as a sling, a lifting rope, a hook) for the next step of curing.

[0035] Furthermore, in the first stage of mold splitting, the jacking mechanism can drive the wall to move in the vertical direction while the side mold 3 remains stationary, so that a relative movement in the vertical direction can be introduced before the side mold 3 is separated from the wall. Specifically, the jacking mechanism steadily lifts the wall from the bottom of the wall, causing a vertical displacement between the wall and the inner wall of the mold. The two slide relative to each other in the vertical direction. During this process, the originally firm adhesion state between the wall and the inner wall of the mold is broken, and the contact pressure in the adhesion area is released. At the same time, the relative movement in the vertical direction will generate a certain frictional force, and this frictional force will slide along the contact surface between the wall and the inner wall of the mold, further weakening the remaining adhesion points (just like sanding off attachments), gradually eliminating the adhesion between the wall and the mold. When the wall is jacked up to a certain extent (i.e., the slider 7 reaches the end of the chute 601 away from the side mold 3), the side mold 3 then moves horizontally and separates from the wall and the bottom mold 5. At this time, since most of the adhesion has been eliminated by the relative movement and friction in the vertical direction, the adhesion resistance that the side mold 3 needs to overcome during horizontal movement is greatly reduced, and the wall will no longer be damaged due to excessive horizontal tensile force, effectively reducing the risk of wall damage during the demolding process and significantly improving the qualified rate of products.

[0036] If the wall is directly lifted by a lifting tool before the side mold 3 is removed, although this method can also apply an upward pulling force to the wall through the lifting tool, causing a certain relative movement and friction between the wall and the mold, thereby eliminating some adhesion points. However, during actual construction, the lifting tool usually only acts on specific parts such as the embedded lifting rings or reserved lifting holes of the wall, resulting in too concentrated stress points on the wall. During the lifting process, these stress points bear the main pulling force for lifting the wall, while other parts of the wall are difficult to evenly share this pulling force. This makes the wall unevenly stressed during lifting and prone to excessive stress in the locally concentrated stress areas. Since the adhesion force distribution between the wall and the inner wall of the mold is uneven, during the lifting process, relying solely on the local pulling force of the lifting tool is difficult to overcome the adhesion force between other parts of the wall and the inner wall of the mold. This may cause excessive local stress on the wall during lifting, while the parts with tighter adhesion still cannot be effectively separated. When the pulling force exceeds the bearing capacity of the wall material, the wall may be partially pulled out at these parts with tighter adhesion, resulting in local damage to the wall, such as defects and peeling, seriously affecting the appearance quality and structural performance of the product, and ultimately reducing the qualified rate of the product. Moreover, directly lifting the wall by a lifting tool will also cause excessive friction between the wall and the inner wall of the mold, easily leading to problems with the poor appearance of the wall.

[0037] Please refer to again Figure 8 And Figure 9 As shown in, a notch is provided on the upper part of the bottom mold 5, and the notch is adapted to the lifting plate 12. Two transmission plates 13 that penetrate through the bottom mold 5 and are slidably connected to the bottom mold 5 are fixed to the bottom of the lifting plate 12. Each of the two transmission plates 13 is connected to the swing structure through a set of transmission structures.

[0038] It should be noted that taking Figure 1 the above state as an example, at this time the mold is in the closed mold state, and the lifting plate 12 is located in the notch, making the upper surface of the bottom mold 5 flat. During the sliding process of the slider 7 away from the side mold 3 in the chute 601, it will cooperate with the swing structure, causing the swing structure to deflect. Correspondingly, the swing structure will drive the transmission plate 13 to slide upward relative to the bottom mold 5 through the transmission structure. Thus, the lifting plate 12 can stably lift the formed wall, so that there is friction between the wall and the inner wall of the mold, achieving the effect of eliminating adhesion points.

[0039] In the actual construction process, if the wall is lifted directly by a hoist before the side mold 3 is removed, the lifting speed, strength and operating accuracy of the hoist must be controlled extremely accurately. If you are not careful, the wall is likely to tilt under the action of the lifting force, causing force between the mold and the wall. This will not only cause damage to the edges and corners of the wall, but may also damage the structural integrity of the mold. In severe cases, it may even cause safety accidents, threatening the lives of construction workers, and causing delays in production progress and economic losses.

[0040] On the contrary, the method of lifting the wall by the lifting plate 12 adopted in the present application appears to be more stable and reliable. Through the stable work of the lifting mechanism, the lifting plate 12 can lift the wall evenly and stably from the bottom of the wall, so that the wall is displaced in the vertical direction, thereby generating a gentle friction between the wall and the inner wall of the mold. This process can not only effectively eliminate the adhesion points between the wall and the mold, but also minimize the horizontal tension on the wall during the demoulding process, avoiding damage to the wall due to uneven force. Therefore, the lifting means of the present application greatly improves the safety and stability of the demoulding process while ensuring the demoulding efficiency, and effectively avoids a series of problems that may be caused by direct lifting.

[0041] The transmission structure includes a swing arm 14 fixedly connected to the driven plate 11 and a telescopic arm 15 slidably sleeved with the swing arm 14 . One end of the telescopic arm 15 close to the transmission plate 13 is hinged to the transmission plate 13 .

[0042] When the hydraulic cylinder 9 drives the driving arm 8 to move in a direction away from the side mold 3, the driving wheel 701 will roll over the first inclined surface 1101 and the second inclined surface 1102 in sequence; Specifically, the driving wheel 701 rolls over the first inclined surface 1101, which corresponds to the first stage of mold parting, causing the driven plate 11 and the movable part 10 to rotate. Correspondingly, the driven plate 11 drives the swing arm 14 to swing upward, so that the swing arm 14 drives the transmission plate 13 to slide upward on the bottom mold 5 through the telescopic arm 15 (the telescopic arm 15 and the swing arm 14 slide relative to each other), so that the lifting plate 12 lifts the wall upward. After the driving wheel 701 contacts the second inclined surface 1102, the second inclined surface 1102 switches to a horizontal plane, and the driving wheel 701 rolls along the second inclined surface 1102, which corresponds to the second stage of mold parting.

[0043] Please refer again Figure 5 , Figure 7 as well as Figure 10, the limiting mechanism includes a limiting wheel 20 movably arranged above the side mold 3. The limiting wheel 20 is connected to an upright arm 17 movably arranged on the side of the side mold 3 through an elastic structure. A plurality of guiding blocks 16 are fixed on the side of the side mold 3, and the guiding blocks 16 are slidably fitted with the upright arm 17. Among them, a fixing plate 19 is fixedly installed on the bottom frame 1, and a connecting rod 18 is arranged between the fixing plate 19 and the upright arm 17. Two ends of the connecting rod 18 are respectively hinged to the fixing plate 19 and the upright arm 17.

[0044] Please refer to again Figure 11 , the elastic structure includes a guiding cylinder 21 fixed to the upright arm 17 and having two ends communicating, and a telescopic column 22 slidably sleeved with the guiding cylinder 21. The limiting wheel 20 is arranged at one end of the telescopic column 22 close to the side mold 3, and a guiding structure is arranged at the other end of the telescopic column 22. Among them, a cylindrical spring 25 sleeved on the outer periphery of the telescopic column 22 is arranged inside the guiding cylinder 21. One end of the cylindrical spring 25 is connected to the inner wall of the guiding cylinder 21, and the other end is connected to a frustum 24 slidably arranged in the guiding cylinder 21 and fixed to the telescopic column 22.

[0045] Specifically, a plurality of protruding portions (not labeled in the figure) are further formed on the frustum 24. Correspondingly, strip-shaped guiding grooves (not shown in the figure) adapted to the protruding portions are arranged on the inner wall of the guiding cylinder 21. The arrangement of the protruding portions and the strip-shaped guiding grooves is used to guide the telescopic column 22. During the hoisting process of the wall body, it is avoided that the limiting wheel 20 is deflected due to force, resulting in the rotation of the telescopic column 22, and further resulting in the distortion of the cylindrical spring 25 and the central axis of the limiting wheel 20 not being perpendicular to the height direction of the wall body, and further resulting in the problem that the edge of the limiting wheel 20 may scratch the wall body. The arrangement of the protruding portions and the strip-shaped guiding grooves enables the telescopic column 22 and the guiding cylinder 21 to only perform relative movement along the axial direction and will not rotate, avoiding the deflection problem of the limiting wheel 20.

[0046] The guiding structure includes a follower wheel 2201 installed at one end of the telescopic column 22 away from the limiting wheel 20. The follower wheel 2201 abuts against a limiting plate member 23 fixed to the side of the side mold 3, and a vertical surface 2301 and a third inclined surface 2302 connected to each other are arranged on one side of the limiting plate member 23 facing the follower wheel 2201.

[0047] In the second stage of mold splitting, as the side mold 3 moves away from the wall body, the upright arm 17 gradually approaches the fixing plate 19. Furthermore, the connecting rod 18 will cause the upright arm 17 to move downward. Correspondingly, the elastic structure and the limiting wheel 20 move downward, and the limiting wheel 20 can descend from above the side mold 3 to the side of the side mold 3 facing the wall body. Please refer to Figure 11At this time, in the mold closing state, the cylindrical spring 25 is in a compressed state, the follower wheel 2201 is in contact with the vertical surface 2301, and during the descending process of the vertical arm 17, the follower wheel 2201 first rolls downward along the vertical surface 2301, and after the height of the limiting wheel 20 is lower than the height of the upper part of the wall, the follower wheel 2201 is separated from the vertical surface 2301, so that the cylindrical spring 25 rebounds, so that the telescopic column 22 and the guide cylinder 21 slide relative to each other. Specifically, the telescopic column 22 drives the limiting wheel 20 to move toward the wall until the limiting wheel 20 is in contact with the wall, and at this time, the follower wheel 2201 is separated from the third inclined surface 2302; Therefore, after the demoulding process is completed, the limiting wheels 20 abut against the side of the wall, and the columnar spring 25 can provide elastic supporting force. When the hoist lifts the wall, the limiting wheels 20 on both sides of the wall can effectively limit and stabilize the wall, and can effectively limit the horizontal displacement of the wall during the lifting process, prevent the wall from colliding with surrounding objects due to swaying and shaking, reduce the risk of damage to the wall and the mold, and improve the safety of lifting.

[0048] In the next round of production, each component is reset, the vertical arm 17 rises, and the follower wheel 2201 rolls along the third inclined surface 2302, thereby causing the telescopic column 22 and the limiting wheel 20 to give way, and the cylindrical spring 25 restores the initial compression amount.

[0049] As another embodiment of the present invention, a method for producing a cement prefabricated wall is also proposed, using the production mold, comprising the following steps: Step 1: Preparation: Check the mold, clean the mold and spray the release agent on the inner surface of the mold cavity; Step 2: Place the steel cage between the two side molds 3; Step 3: close the mold, pour cement, and vibrate; Step 4: Install the top mold and stop for maintenance; Step 5: split the mold, the lifting mechanism lifts the wall, the limiting mechanism limits the side of the wall, and the wall is lifted out from between the two side molds 3 by using the lifting device; Step six: inspect, maintain and store the walls.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0051] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A production mold for precast cement walls, including a bottom frame; It is characterized in that It further includes: Side molds, two of which are symmetrically arranged on the bottom frame and can be driven by a power mechanism arranged on the bottom frame to approach or move away from the bottom mold fixed on the bottom frame. One openable end mold is hinged on each side of the side mold; It further includes a slider connected to the power mechanism and a cross arm fixed on the side mold. A chute is formed on the cross arm, and the slider slides in the chute. When the power mechanism operates, the slider slides in the chute, and after the slider moves to the end of the chute away from the side mold, it drives the cross arm to drive the side mold to perform the mold opening action; A jacking mechanism, including a jacking plate and a swinging structure. The swinging structure includes a movable part hinged on the bottom frame and connected to the jacking plate through a transmission structure. A driven plate is fixed on the movable part. The driven plate abuts against a driving wheel arranged at the bottom of the slider, and a first inclined surface and a second inclined surface that are connected and cooperate with the driving wheel are further formed on the driven plate. When the slider slides in the chute, the driven plate is driven to rotate by the cooperation of the driving wheel and the first inclined surface, so that the jacking plate moves upward. When the slider abuts against the inner end of the chute, the driving wheel moves to the second inclined surface. At this time, the second inclined surface is in a horizontal state.

2. The production mold for precast cement walls according to claim 1, characterized in that The power mechanism includes a hydraulic cylinder fixedly installed on the side of the bottom frame and a driving arm fixedly connected to the movable end of the hydraulic cylinder.

3. The production mold for precast cement walls according to claim 2, characterized in that The driving arm is fixedly connected to the slider, and the hydraulic cylinder can drive the driving arm to drive the slider to slide in the chute.

4. The production mold for precast cement walls according to claim 1, characterized in that A notch is provided on the upper part of the bottom mold, and the notch is adapted to the jacking plate. Two transmission plates that penetrate the bottom mold and are slidably connected to the bottom mold are fixed to the bottom of the jacking plate. Each of the two transmission plates is connected to the driven plate through a set of transmission structures.

5. The production mold for precast cement walls according to claim 4, characterized in that The transmission structure includes a swing arm fixedly connected to the driven plate and a telescopic arm slidably sleeved on the swing arm. One end of the telescopic arm close to the transmission plate is hinged to the transmission plate.

6. The production mold for precast cement walls according to claim 1, characterized in that Multiple groups of limiting mechanisms are respectively arranged on the sides of the two side molds. The limiting mechanism includes a limiting wheel movably arranged above the side mold. The limiting wheel is connected to a vertical arm movably arranged on the side of the side mold through an elastic structure. A plurality of guiding blocks are fixed on the side of the side mold, and the guiding blocks are slidably fitted with the vertical arm; Among them, a fixing plate is fixedly installed on the bottom frame. A connecting rod is arranged between the fixing plate and the vertical arm. The two ends of the connecting rod are respectively hinged to the fixing plate and the vertical arm.

7. The production mold for precast cement walls according to claim 6, characterized in that The elastic structure includes a guiding cylinder fixedly connected to the vertical arm and having two ends communicating, and a telescopic column slidably sleeved on the guiding cylinder. The limiting wheel is arranged at one end of the telescopic column close to the side mold, and a guiding structure is arranged at the other end of the telescopic column; Among them, a cylindrical spring sleeved on the outer periphery of the telescopic column is arranged inside the guiding cylinder. One end of the cylindrical spring is connected to the inner wall of the guiding cylinder, and the other end is connected to a frustum fixedly arranged in the guiding cylinder and slidably connected to the telescopic column.

8. The production mold for precast cement walls according to claim 7, characterized in that The guiding structure includes a follower wheel installed at one end of the telescopic column away from the limiting wheel. The follower wheel abuts against a limiting plate member fixed on the side of the side mold, and a vertical surface and a third inclined surface connected to each other are arranged on one side of the limiting plate member facing the follower wheel.

9. A production method for precast cement walls, using the production mold according to claim 1, characterized in that It includes the following steps: Step 1, preparatory work, checking the mold, cleaning the mold and spraying a mold release agent on the inner surface of the mold cavity; Step 2, placing the steel reinforcement cage between the two side molds; Step 3, closing the mold, pouring cement and vibrating; Step 4, installing the top mold and curing statically; Step 5, splitting the mold, the lifting mechanism lifts the wall, the limiting mechanism limits the side of the wall, and the wall is lifted out from between the two side molds by using a lifting tool; Step 6, inspecting, curing and storing the wall.

Images