A production mold and production method for precast cement walls

Abstract

The present invention relates to the technical field of prefabricated wall production, and specifically to a cement prefabricated wall production mold and production method, comprising a base frame, and also comprising: side molds, two of which are symmetrically provided on the base frame and can be driven to move by a power mechanism provided on the base frame; a slider connected to the power mechanism and a cross arm fixed on the side mold, a slide groove being formed on the cross arm, the slider sliding in the slide groove, and when the power mechanism is actuated, the slider slides in the slide groove, and after the slider moves to the end of the slide groove away from the side mold, the cross arm drives the side mold to perform a demolding action; a jacking mechanism, the jacking mechanism lifts the wall in the vertical direction, so that the wall and the inner wall of the mold produce relative movement, effectively breaking the adhesion state and weakening the adhesion point, reducing the force required for horizontal demolding, reducing the risk of wall damage, and can effectively limit the horizontal displacement of the wall during lifting, prevent the wall from colliding with surrounding objects due to wall swaying and shaking, and reduce the risk of damage to the wall and the mold.

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, which have the advantages of high efficiency, environmental protection, and excellent quality, and are widely used in fields such as construction, municipal engineering, and industry. Usually, they are produced by means 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 lack of 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 maintenance 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, and the mold is vibrated 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 carefully in actual production. Common manual auxiliary means include: using tools to pry the wall, using a rubber hammer to strike the wall, and multiple people collaborating to shake the mold, etc. Obviously, these means have a greater impact on production efficiency, and the work intensity is also relatively large, and manual handling has uncertainty. 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 the edge of the wall being pulled and deformed or damaged, 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:

[0006] A production mold for cement precast walls includes a bottom frame, and further includes:

[0007] 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;

[0008] 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 far from the side mold, it drives the cross arm to drive the side mold to perform the mold opening action.

[0009] The lifting mechanism includes a lifting plate and a swinging structure. The swinging structure includes a movable member hinged on the bottom frame and connected to the lifting 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 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 lifting 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.

[0010] 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.

[0011] 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.

[0012] 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 lifting plate. Two transmission plates that penetrate the bottom mold and are slidably connected to the bottom mold are fixed to the bottom of the lifting plate. The two transmission plates are respectively connected to the driven plate through a set of transmission structures.

[0013] 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.

[0014] As a further scheme of the present invention: Multiple groups of limiting mechanisms are provided on the sides of the two side molds respectively. 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 to the side of the side mold, and the guiding blocks are slidably fitted with the vertical arm.

[0015] Among them, a fixing plate is fixedly installed on the bottom frame. A connecting rod is provided 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.

[0016] As a further solution of the present invention: The elastic structure includes a guiding cylinder fixed to the vertical arm and having both ends conducting, 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;

[0017] 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 inside the guiding cylinder and fixed to the telescopic column.

[0018] 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.

[0019] A production method of a cement precast wall, using the production mold described above, includes the following steps:

[0020] Step 1, preparation work, check the mold, clean the mold and spray a mold release agent on the inner surface of the mold cavity;

[0021] Step 2, place the steel reinforcement cage between the two side molds;

[0022] Step 3, close the mold, pour cement and vibrate;

[0023] Step 4, install the top mold and carry out static maintenance;

[0024] Step 5, open 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;

[0025] Step 6, check, maintain and store the wall.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] In this application, the mold opening process is divided into a first stage and a second stage. In the first stage, the lifting 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 side mold is separated from the wall. Specifically, the lifting 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, and the two slide relative to each other in the vertical direction. In 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;

[0028] 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 vertical relative movement and friction, the adhesion resistance that the side formwork needs to overcome during horizontal movement is greatly reduced. The wall will no longer be damaged by excessive horizontal tension, thus effectively reducing the risk of wall damage during the demoulding process and significantly improving the product qualification rate.

[0029] 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 cylindrical spring can provide elastic support 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

[0030] Figure 1 An axonometric view of an embodiment of a mold for producing precast cement walls.

[0031] Figure 2 A structural schematic diagram of an embodiment of a cement prefabricated wall production mold.

[0032] Figure 3 A structural schematic diagram of another angle of an embodiment of a cement prefabricated wall production mold.

[0033] Figure 4 A structural schematic diagram of an embodiment of a cement prefabricated wall production mold from another angle.

[0034] Figure 5 A schematic diagram of the mold closing state of an embodiment of a cement prefabricated wall production mold.

[0035] Figure 6 This is a structural diagram of the jacking mechanism and the limiting mechanism in one embodiment of a cement prefabricated wall production mold.

[0036] Figure 7 for Figure 6 Schematic diagram of the structure from another angle.

[0037] Figure 8 This is a schematic structural exploded view of the jacking mechanism in one embodiment of a cement precast wall production mold.

[0038] Figure 9 for Figure 8 Schematic diagram of the structure from another angle.

[0039] Figure 10 This is an exploded view of the structure of the limiting mechanism in one embodiment of a cement prefabricated wall production mold.

[0040] Figure 11 For Figure 10 The enlarged view of the structure at position A in the figure.

[0041] 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 member; 2301, vertical surface; 2302, third inclined surface; 24, frustum; 25, cylindrical spring. Specific embodiments

[0042] 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 of 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 belong to the scope of protection of the present invention.

[0043] 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 may 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.

[0044] Please refer to Figures 1 - 11 , in the embodiments of the present invention, a production mold for a cement precast wall includes a bottom frame 1, and further includes:

[0045] Side molds 3, two of which are symmetrically arranged on the bottom frame 1 and can be driven by a power mechanism disposed on the bottom frame 1 to approach or move away from the bottom mold 5 fixed on the bottom frame 1. One end mold 4 that can be opened and closed is hinged on each side of the side mold 3;

[0046] 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. The slider 7 slides in the chute 601. When the power mechanism acts, the slider 7 slides in the chute 601, and after the slider 7 moves to the end of the chute 601 far from the side mold 3, it drives the cross arm 6 to drive the side mold 3 to perform a mold splitting action;

[0047] 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. Moreover, a first inclined surface 1101 and a second inclined surface 1102 which are connected and cooperate with the driving wheel 701 are formed on the driven plate 11. When the slider 7 slides in the chute 601, the driven plate 11 is driven to rotate by the cooperation of the driving wheel 701 and the first inclined surface 1101, 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;

[0048] Wherein, a plurality of groups of limiting mechanisms are provided on each side of the two side molds. During the movement of the side mold 3 away from the bottom mold 5, the limiting mechanism is triggered and can exert a lateral pressure on the formed wall.

[0049] It should be further noted that a workbench 2 is also 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 vibrating rod;

[0050] 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;

[0051] It should be noted that during actual construction, after the vibrating 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 transportation of the mold. Specifically, the top mold extends from the side of the end mold 4 and is fixed.

[0052] 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.

[0053] 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.

[0054] 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 sliding groove 601 .

[0055] In detail, when the wall in the mold reaches a certain strength and the mold is separated, the lock used to fix the end mold 4 is first unlocked, and the hydraulic cylinder 9 works to drive the driving arm 8 to move away from the side mold 3. This movement is divided into two stages, specifically:

[0056] In the first stage, since the side form 3 is relatively heavy, the driving arm 8 drives the slider 7 to slide in the chute 601 away from the side form 3. The side form 3 remains stationary, and the slider 7 triggers the lifting mechanism. The lifting mechanism applies an upward lifting force to the formed wall from below the bottom form 5 until the slider 7 reaches the end of the chute 601 away from the side form 3.

[0057] 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 form 3 to move away from the wall on the bottom frame 1 through the cross arm 6 to achieve mold separation. Then, the wall (the wall is generally equipped with lifting holes and embedded lifting rings) is lifted out using lifting tools (such as lifting belts, lifting ropes, and lifting hooks) for the next step of maintenance.

[0058] Furthermore, in the first stage of mold separation, the jacking mechanism can drive the wall to move in the vertical direction, while the side mold 3 remains stationary, so that the vertical relative movement can be introduced before the side mold 3 is separated from the wall. Specifically, the jacking mechanism lifts the wall steadily 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. In this process, the original strong adhesion 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 amount of friction, which will slide along the contact surface between the wall and the inner wall of the mold, further weakening the remaining adhesion points (just like using sandpaper to grind off attachments), and gradually eliminating the adhesion between the wall and the mold. When the wall is lifted to a certain extent (i.e. the slider 7 reaches the end of the slide groove 601 away from the side form 3), the side form 3 moves horizontally again and separates from the wall and the bottom form 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 form 3 needs to overcome during horizontal movement 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.

[0059] 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 can only act on specific parts such as the embedded lifting rings or reserved lifting holes of the wall, resulting in the stress points of the wall being too concentrated. 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, it is difficult to overcome the adhesion force between other parts of the wall and the inner wall of the mold only by the local pulling force of the lifting tool. 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 spalling, 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.

[0060] Please refer to again Figure 8 And Figure 9 The upper part of the bottom mold 5 is provided with a notch, the notch is adapted to the lifting plate 12, and 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.

[0061] 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 the adhesion points.

[0062] During actual construction, if the wall is lifted directly with a hoist before the side formwork 3 is removed, the lifting speed, force, and accuracy of the hoist must be precisely controlled. If care is not taken, the wall could tilt under the lifting force, causing stress between the mold and the wall. This could not only damage the edges and corners of the wall, but also compromise the structural integrity of the mold. In severe cases, it could even cause a safety accident, threatening the lives of construction workers, delaying production, and causing economic losses.

[0063] 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, causing the wall to be displaced in the vertical direction, thereby generating a mild 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, thereby 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.

[0064] 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 .

[0065] When the hydraulic cylinder 9 drives the driving arm 8 to move 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;

[0066] 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. Then, 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), causing the lifting plate 12 to lift 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.

[0067] 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 a vertical 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 vertical 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 vertical arm 17. Two ends of the connecting rod 18 are respectively hinged to the fixing plate 19 and the vertical arm 17.

[0068] Please refer to again Figure 11 , the elastic structure includes a guiding cylinder 21 fixed to the vertical 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.

[0069] 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 rotates due to the force offset, 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 offset problem of the limiting wheel 20.

[0070] The guiding structure includes a follower wheel 2201 installed at one end of the telescopic column 22 far 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.

[0071] In the second stage of mold separation, as the side mold 3 moves away from the wall body, the vertical arm 17 gradually approaches the fixing plate 19. Further, the connecting rod 18 will cause the vertical 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;

[0072] See also Figure 11 At this time, in the mold closing state, the cylindrical spring 25 is in a compressed state, and the follower wheel 2201 abuts against the vertical surface 2301. During the descending process of the vertical arm 17, the follower wheel 2201 first rolls downward along the vertical surface 2301. 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. Then, the cylindrical spring 25 rebounds, causing the telescopic column 22 and the guide cylinder 21 to 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 abuts against the wall, and at this time, the follower wheel 2201 is separated from the third inclined surface 2302.

[0073] Therefore, after the mold separation 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 mold, and improve the safety of lifting.

[0074] In the next round of production, all components are 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 recovers its initial compression amount.

[0075] As another embodiment of the present invention, a method for producing a prefabricated cement wall is also provided, which uses the production mold described above and includes the following steps:

[0076] Step 1: Preparation: Check the mold, clean the mold and spray the release agent on the inner surface of the mold cavity;

[0077] Step 2: Place the steel cage between the two side forms 3;

[0078] Step 3: close the mold, pour cement, and vibrate;

[0079] Step 4: Install the top mold and stop for maintenance;

[0080] Step 5: Parting 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 using a lifting device;

[0081] Step six: inspect, maintain and store the walls.

[0082] It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-restrictive. 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 concerned.

[0083] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one 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 the various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cement prefabricated wall production mold, including a bottom frame; It is characterized in that Also includes: Two side molds are symmetrically provided on the bottom frame and can be driven by a power mechanism provided on the bottom frame to move closer to or away from the bottom mold fixed on the bottom frame. An openable and closable end mold is hinged on each side of the side mold; The invention also includes a slider connected to the power mechanism and a cross arm fixed on the side mold, wherein a slide groove is formed on the cross arm, and the slider slides in the slide groove. When the power mechanism is actuated, the slider slides in the slide groove, and after the slider moves to the end of the slide groove away from the side mold, the cross arm is driven to drive the side mold to perform a mold separation action; The lifting mechanism includes a lifting plate and a swing structure, the swing structure includes a movable part hinged on the bottom frame and connected to the lifting plate through a transmission structure, a driven plate is fixed to the movable part, 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 connected to and cooperating with the driving wheel are further formed on the driven plate, when the slider slides in the slide groove, the driving wheel cooperates with the first inclined surface to drive the driven plate to rotate, so that the lifting plate moves up, and when the slider abuts against the inner end of the slide groove, the driving wheel moves to the second inclined surface, at which time, the second inclined surface is in a horizontal state; A recess is provided on the upper portion of the bottom mold, which is adapted to the lifting plate. Two transmission plates are fixed to the bottom of the lifting plate, which pass through the bottom mold and are slidably connected to the bottom mold. The two transmission plates are each connected to the driven plate through a set of transmission structures.

2. A cement prefabricated wall production mold according to claim 1, characterized in that: The power mechanism includes a hydraulic cylinder fixedly mounted on the side of the bottom frame and a driving arm fixedly connected to the movable end of the hydraulic cylinder.

3. A cement prefabricated wall production mold 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 sliding groove.

4. A cement prefabricated wall production mold according to claim 1, characterized in that: The transmission structure includes a swing arm fixedly connected to the driven plate and a telescopic arm slidably sleeved with the swing arm, and one end of the telescopic arm close to the transmission plate is hinged to the transmission plate.

5. A cement prefabricated wall production mold according to claim 1, characterized in that: The sides of the two side molds are each provided with a plurality of limiting mechanisms, the limiting mechanisms comprising limiting wheels movably arranged above the side molds, the limiting wheels being connected to vertical arms movably arranged on the sides of the side molds through elastic structures, the sides of the side molds being fixed with a plurality of guide blocks, the guide blocks being slidably engaged with the vertical arms; Wherein, a fixing plate is fixedly installed on the bottom frame, a connecting rod is provided between the fixing plate and the vertical arm, and two ends of the connecting rod are hinged to the fixing plate and the vertical arm respectively.

6. A cement prefabricated wall production mold according to claim 5, characterized in that: The elastic structure includes a guide cylinder fixed to the vertical arm and connected at both ends, and a telescopic column slidably engaged with the guide cylinder. The limiting wheel is provided at one end of the telescopic column close to the side mold, and the other end of the telescopic column is provided with a guide structure. Among them, the guide cylinder is provided with a cylindrical spring sleeved on the outer circumference of the telescopic column. One end of the cylindrical spring is connected to the inner wall of the guide cylinder, and the other end is connected to a round table slidably arranged in the guide cylinder and fixed to the telescopic column.

7. A cement prefabricated wall production mold according to claim 6, characterized in that: The guiding structure includes a follower wheel installed on one end of the telescopic column away from the limiting wheel, the follower wheel abuts against the limiting plate fixed on the side of the side mold, and the limiting plate is provided with a connected vertical surface and a third inclined surface on the side facing the follower wheel.

8. A method for producing a prefabricated cement wall, using the production mold according to claim 1, characterized in that: The following steps are involved: 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 forms; Step 3: close the mold, pour cement, and vibrate; Step 4: Install the top mold and stop for maintenance; Step 5: Separate the molds. 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 using a lifting device. Step six: inspect, maintain and store the wall.

Images