Production mold of prefabricated assembly type cavity floor system component

Abstract

The utility model relates to a production die of a prefabricated assembly type cavity floor system component, which comprises a lower die provided with a bottom plate, a rectangular side wall positioned on the bottom plate, and a plurality of grooves positioned on the top surface of the rectangular side wall and used for placing reinforcing steel bars; the upper die is provided with a rectangular frame body matched with the rectangular side wall, a plurality of tooth parts located on the inner ring of the rectangular frame body, and tooth grooves located between every two adjacent tooth parts; the upper die is detachably installed on the lower die to form a forming cavity with an opening in the top so as to contain substances forming the cavity floor component after solidification, the bottom face of the rectangular frame body is attached to or basically attached to the top face of the rectangular side wall to seal the opening, in the top face of the rectangular side wall, of the groove, and the tooth part is located on the inner side of the rectangular side wall. During mold removal, only the upper mold needs to be lifted upwards to be separated from a prefabricated product formed in the forming cavity, then the formed prefabricated product is overturned and poured out of the lower mold, demolding can be completed, demolding is simpler, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to a production mould for building components, in particular to a production mould for prefabricated assembled cavity floor components. Background Art

[0002] The cast-in-situ concrete cavity floor structure system consists of prefabricated cavity components, cast-in-situ reinforced concrete multi-ribbed beams (slabs), and frame beams. The cavity components are generally prefabricated in a factory and transported to the construction site for assembly. Currently, the prefabricated cavity components are generally produced using special molds.

[0003] The Chinese utility model with authorization announcement number CN 221518221U discloses an assembly box bottom plate mold, including a base, a first molded part, a second molded part, a third molded part, a fourth molded part, a vertical limit plate and a limit screw. The first to fourth molded parts are connected end to end to form a rectangular frame, and the first to fourth molded parts are detachably connected to the base. Both ends of the first molded part and the third molded part have positioning openings and positioning parts. The two ends of the second molded part and the fourth molded part are provided with positioning blocks corresponding to the positioning openings. The positioning blocks match the positioning openings, and the corresponding positioning parts are provided with two horizontal limit plates. The limit screw is threadedly connected to the vertical limit plate and then passes through the two horizontal limit plates to be threadedly connected to the positioning part, and the two horizontal limit plates limit the limit screw in the vertical direction.

[0004] However, the disadvantages of the above-mentioned products are that after the concrete base plate is formed, the bolts and limit screws between the lower plate and the base are removed, and the first to fourth molded parts are removed by pulling or knocking the handle to complete the demolding. The entire demolding process is relatively cumbersome (one worker needs to remove the first molded part, the second molded part, the third molded part, and the fourth molded part in batches), and the production efficiency is low. Summary of the Invention

[0005] The purpose of the utility model is to solve the above-mentioned problems and provide a production mold for prefabricated assembled cavity floor components with convenient demoulding, thereby improving production efficiency.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0007] A production mold for a prefabricated assembled cavity floor component, comprising:

[0008] The lower mold comprises a bottom plate, a rectangular side wall located on the bottom plate, and a plurality of grooves located on the top surface of the rectangular side wall for placing steel bars;

[0009] The upper mold has a rectangular frame body adapted to the rectangular side wall, a plurality of teeth located in the inner circle of the rectangular frame, and a tooth groove located between two adjacent teeth parts;

[0010] The upper mold is detachably mounted on the lower mold to form a molding cavity with an open top to accommodate the material that forms the cavity floor component after solidification, and the bottom surface of the rectangular frame is in contact with or substantially in contact with the top surface of the rectangular side wall, closing the opening of the groove on the top surface of the rectangular side wall, and the tooth portion is located on the inner side of the rectangular side wall.

[0011] Preferably, an extension portion protruding from the bottom surface of the rectangular frame is formed at the edge of the upper mold, and a tooth portion protrudes from the bottom surface of the rectangular frame, thereby forming an interlocking groove between the tooth portion and the extension portion, and the rectangular side wall is at least partially embedded in the interlocking groove to realize a detachable connection between the lower mold and the upper mold.

[0012] Preferably, the inner wall surface of the rectangular side wall is an inclined wall surface for easy demoulding, and when the upper mold is installed on the lower mold, the portion of the teeth protruding from the bottom surface of the rectangular frame is in contact with the inclined wall surface.

[0013] Preferably, when the upper die is mounted on the lower die, each tooth groove corresponds to at least one groove.

[0014] Preferably, the bottom surface of the lower mold has a convex portion located on the inner side of the rectangular side wall, and a circle of concave portions located on the periphery of the convex portion.

[0015] Preferably, the convex portion is provided with at least one group of mutually intersecting strip grooves.

[0016] Preferably, a step portion is provided between the recess and the inner wall surface of the rectangular side wall.

[0017] Preferably, a plurality of support parts for facilitating stacking are evenly arranged on the bottom plate.

[0018] Preferably, a clearance groove is provided on the upper mold at a position corresponding to the support portion; when the two groups of production molds are stacked, the support portion in the upper production mold is embedded in the clearance groove in the lower production mold.

[0019] Preferably, the inner wall surface of the rectangular frame and the wall surface of the tooth portion are inclined wall surfaces for facilitating demoulding of the upper mold in a direction perpendicular to the bottom surface of the lower mold.

[0020] Preferably, the lower mold and / or upper mold are integrally compression molded or integrally injection molded.

[0021] Preferably, the outer side wall of the rectangular side wall is provided with reinforcing ribs.

[0022] The beneficial effects of the present invention are:

[0023] 1. The production mold of the utility model includes a lower mold and an upper mold, wherein the upper mold is detachably mounted on the lower mold, thereby forming a molding cavity with an open top to accommodate the material (such as concrete) that forms the cavity floor component after solidification; a plurality of grooves for placing steel bars are provided on the top surface of the rectangular side wall of the lower mold, and in the assembled state (in the mold closed state), the bottom surface of the rectangular frame of the upper mold is in contact with or substantially in contact with the top surface of the rectangular side wall, closing the openings of the grooves on the top surface of the rectangular side wall; thus, when removing the mold, it is only necessary to lift the upper mold to separate it from the prefabricated product formed in the molding cavity, and then flip the formed prefabricated product out of the lower mold to complete the demoulding, which is simpler than the demoulding of the prior art, thereby improving production efficiency. In addition, because the bottom surface of the rectangular frame of the upper mold is in contact with or substantially in contact with the top surface of the rectangular side wall, closing the openings of the grooves on the top surface of the rectangular side wall can prevent the steel bars placed in the grooves from being lifted by the concrete when the fluidized concrete is poured, resulting in the problem of the steel bars in the prefabricated product being changed after molding.

[0024] 2. An extension portion protruding from the bottom surface of the rectangular frame is formed at the edge of the upper mold, and the tooth portion protrudes from the bottom surface of the rectangular frame, thereby forming an interlocking groove between the tooth portion and the extension portion, and the rectangular side wall is at least partially interlocked in the interlocking groove to realize the detachable connection between the lower mold and the upper mold; in this way, on the one hand, the tooth structure allows the prefabricated product after molding to form shear teeth at corresponding positions, which can improve the reliability of the connection between the prefabricated product after molding and the cast-in-place reinforced concrete beam; on the other hand, the cooperation of the tooth portion, the extension portion and the rectangular side wall can conveniently realize the detachable connection of the upper mold and the lower mold and the fixation of the relative position, thereby ensuring the consistency of the prefabricated products produced as much as possible.

[0025] 3. The bottom surface of the lower mold has a convex portion located on the inner side of the rectangular side wall and a circle of concave portions located on the periphery of the convex portion. The convex portion is provided with at least one group of mutually intersecting strip grooves; in this way, at least one group of mutually intersecting ribs are formed on the surface of the prefabricated product after molding, which can further improve the strength of the product.

[0026] 4. A step portion is provided between the recess and the inner wall surface of the rectangular side wall; thus, a step is formed on the prefabricated product after molding at a position corresponding to the step portion, and at a position corresponding to the recess, thereby facilitating the relative positioning of the prefabricated product after molding and the side frame.

[0027] 5. Several support parts are evenly arranged on the bottom plate to facilitate stacking, and a clearance groove is provided on the upper mold at the position corresponding to the support part; when the two groups of production molds are stacked, the support part in the upper production mold is embedded in the clearance groove in the lower production mold; in this way, the design of the support part and the clearance groove can ensure the verticality of the stacking, and avoid the overall tilting caused by the stacking height being too high, which affects the stability.

[0028] 6. The lower mold and / or upper mold are integrally compression molded or integrally injection molded, so that the production mold is light in weight and the surface of the prefabricated product after molding is smoother.

[0029] 7. In the prior art, due to the limitation of the steel bars, the first to fourth molded parts can only be pulled outward in a direction parallel to the base for demolding. Since the concrete is in contact with the first to fourth molded parts, there is a certain force between the two. When the first to fourth molded parts are pulled outward in a direction parallel to the base for demolding, the concrete in the molding cavity is easily damaged or the shape is changed. Therefore, when using this mold for production, demolding can only be carried out after the concrete has reached the required strength. When demolding using the present application, lifting the upper mold does not apply a force parallel to the base to the concrete in the molding cavity, which greatly reduces the probability of damage or shape change of the concrete in the molding cavity during this process. Therefore, when using the present application for production, it takes 1-3 hours for demolding to be carried out after the concrete has initially set. On the one hand, the turnover efficiency of the mold is improved, and on the other hand, because demolding is carried out during the initial setting, the difficulty of demolding can be greatly reduced (after final setting, the concrete and the mold are tightly bonded, making demolding difficult). BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is an exploded view of the present invention.

[0031] Figure 2 The three-dimensional lower mold of the utility model Figure 1 .

[0032] Figure 3 The three-dimensional lower mold of the utility model Figure 2 .

[0033] Figure 4 It is a partial cross-sectional view of the lower mold in the utility model.

[0034] Figure 5 The three-dimensional upper mold of the utility model Figure 1 .

[0035] Figure 6 The three-dimensional upper mold of the utility model Figure 2 .

[0036] Figure 7 It is a three-dimensional diagram of the upper mold and lower mold of the utility model in the mold closing state.

[0037] Figure 8 This is a cross-sectional view of the upper and lower molds of the utility model in the mold closing state Figure 1 .

[0038] Figure 9 This is a cross-sectional view of the upper and lower molds of the utility model in the mold closing state Figure 2 .

[0039] Figure 10 This is a structural diagram of two sets of production molds stacked together.

[0040] The following are marked in the figure:

[0041] Lower mold 1; bottom plate 11; rectangular side wall 12; groove 13; convex portion 14; concave portion 15; strip groove 16; step portion 17; support portion 18;

[0042] Upper mold 2; rectangular frame 21; tooth portion 22; tooth groove 23; extension portion 24; fitting groove 25; clearance groove 26;

[0043] Molding cavity 3. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] like Figures 1-9 An example of a production mold for a prefabricated assembled cavity floor component includes a lower mold 1 and an upper mold 2 that is detachably mounted on the lower mold 1; the upper mold 2 is mounted on the lower mold 1 to form a molding cavity 3 with an open top to accommodate the material that forms the cavity floor component after solidification; in some practical applications, concrete that meets the mix ratio requirements (the initial state is a fluid state) is poured into the molding cavity 3 so that the cavity floor component is formed after solidification.

[0046] like Figure 2-Figure 4As shown, the lower mold 1 comprises a bottom plate 11, a rectangular side wall 12 located on the bottom plate 11, and a plurality of grooves 13 located on the top surface of the rectangular side wall 12 for placing steel bars. In some practical applications, the rectangular side wall 12 is a square (or may be a rectangle, a rounded rectangle, etc.), the length extension direction of each side of the rectangular side wall 12 is perpendicular to the length direction of the groove 13 on that side, and the grooves 13 on two opposite sides correspond to each other and are arranged in a straight line. Thus, in the actual production process, a mesh-like steel mesh can be customized according to the size and spacing of the grooves 13 and placed in the grooves 13, so that each steel bar is embedded in the corresponding groove 13, thereby simplifying the production process. In other practical applications, the lower mold 1 is made of PP (Polypropylene) or ABS (Acrylonitrile Butadiene Styrene) or MDPE (Medium Density Polyethylene) material through integral compression molding or integral injection molding, which makes the production mold light in weight and the surface of the prefabricated product after molding smoother.

[0047] like Figure 5 、 Figure 6 As shown, the upper mold 2 has a rectangular frame 21 adapted to the rectangular side wall 12, a plurality of teeth 22 located on the inner circle of the rectangular frame 21, and a tooth groove 23 located between two adjacent teeth 22. In some practical applications, the rectangular frame 21 is a square (it can also be a rectangle, a rounded rectangle, etc.). In other practical applications, the upper mold 2 is made of PP (Polypropylene) or ABS (Acrylonitrile Butadiene Styrene) or MDPE (Medium Density Polyethylene) material for integral compression molding or integral injection molding, which makes the production mold lightweight and the surface of the prefabricated product after molding smoother.

[0048] like Figure 7-Figure 9As shown, when the upper mold 2 is detachably mounted on the lower mold 1, the bottom surface of the rectangular frame 21 is in contact with or substantially in contact with the top surface of the rectangular side wall 12, closing the opening of the groove 13 on the top surface of the rectangular side wall 12, and the tooth portion 22 is located on the inner side of the rectangular side wall 12. In this way, when demolding, it is only necessary to lift the upper mold 2 to separate it from the prefabricated product formed in the molding cavity 3, and then flip the molded prefabricated product out of the lower mold 1 to complete demolding. Compared with the prior art, demolding is simpler, thereby improving production efficiency. In addition, because the bottom surface of the rectangular frame 21 is in contact with or substantially in contact with the top surface of the rectangular side wall 12, closing the opening of the groove 13 on the top surface of the rectangular side wall 12, it is possible to limit the position of the steel bars placed in the groove 13, thereby preventing the steel bars placed in the groove 13 from being lifted by the concrete when pouring the fluidized concrete, resulting in the problem of the steel bars changing their position in the prefabricated product after molding.

[0049] like Figure 6 、 Figure 8 、 Figure 9 As shown, in some practical applications, an extension portion 24 protruding from the bottom surface of the rectangular frame 21 is formed at the edge of the upper mold 2, and the tooth portion 22 protrudes from the bottom surface of the rectangular frame 21, thereby forming an interlocking groove 25 between the tooth portion 22 and the extension portion 24, and the rectangular side wall 12 is at least partially interlocked in the interlocking groove 25 to realize the detachable connection between the lower mold 1 and the upper mold 2. In this way, on the one hand, the tooth structure forms shear teeth at corresponding positions on the prefabricated product after molding, which can improve the reliability of the connection between the prefabricated product after molding and the cast-in-place reinforced concrete multi-ribbed beam (slab). On the other hand, the cooperation of the tooth portion 22, the extension portion 24 and the rectangular side wall 12 can conveniently realize the detachable connection and relative position fixation of the upper mold 2 and the lower mold 1, thereby ensuring the consistency of the prefabricated products produced as much as possible.

[0050] like Figure 5 、 Figure 6 As shown, in some practical applications, in order to facilitate the demoulding of the upper mold 2, the inner wall of the rectangular frame 21 and the wall of the tooth portion 22 are inclined walls that facilitate the demoulding of the upper mold 2 in a direction perpendicular to the bottom surface of the lower mold 1. Figure 2 、 Figure 3 As shown, in order to facilitate demoulding of the lower mold 1, the inner wall surface of the rectangular side wall 12 is an inclined wall surface for easy demoulding. When the upper mold 2 is installed on the lower mold 1, the tooth portion 22 protruding from the bottom surface of the rectangular frame 21 is attached to the inner inclined wall surface of the rectangular side wall 12.

[0051] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 8As shown, in some practical applications, the bottom surface of the lower mold 1 has a protrusion 14 located inside the rectangular sidewall 12, and a circle of recesses 15 located around the protrusion 14. Due to the presence of the protrusion 14, a depression corresponding to the protrusion 14 is formed on the bottom surface of the prefabricated product after molding. This can reduce the weight of the prefabricated product while ensuring the strength of the molded prefabricated product. In other practical applications, the protrusion 14 is provided with at least one set of intersecting strip grooves 16. In this way, at least one set of intersecting ribs are formed on the surface of the molded prefabricated product, which can further improve the strength of the product. In some practical applications, a step 17 is provided between the recess 15 and the inner wall surface of the rectangular side wall 12. In this way, a step is formed on the prefabricated product after molding at a position corresponding to the step 17 and at a position corresponding to the recess 15, so as to facilitate the relative positioning of the prefabricated product after molding and the side frame (which can be a cylindrical structure with a square cross-section and through-through ends) (the end of the side frame abuts against the position on the prefabricated product after molding corresponding to the step 17 and is located on the outer circle of the position on the prefabricated product after molding corresponding to the recess 15).

[0052] like Figure 1 、 Figure 10 As shown, in some practical applications, the base plate 11 is evenly distributed with several supports 18 to facilitate stacking. The upper mold 2 is provided with clearance grooves 26 corresponding to the supports 18. When two sets of production molds are stacked, the supports 18 in the upper mold fit into the clearance grooves 26 in the lower mold. This design of supports 18 and clearance grooves 26 ensures verticality when stacked, preventing the entire mold from tilting and affecting stability if the stack is too high.

[0053] When the upper die 2 is mounted on the lower die 1, each tooth groove 23 corresponds to at least one groove 13, i.e., the groove 13 is staggered with the tooth portion 22. The outer side wall of the rectangular side wall 12 is provided with reinforcing ribs to ensure the strength of the rectangular side wall 12 and prevent deformation.

[0054] When the production mold described in this embodiment is applied in actual production, the lower mold 1 is placed on a flat ground, and steel bars of the designed length of the product are placed in the groove 13, so that the steel bars are erected on the lower mold 1 and limited by the groove 13; the upper mold 2 is placed on the lower mold 1, so that the rectangular side wall 12 is at least partially embedded in the embedding groove 25, so as to realize the detachable connection between the lower mold 1 and the upper mold 2, and form a molding cavity 3, and at the same time, the bottom surface of the rectangular frame 21 is attached to or basically attached to the top surface of the rectangular side wall 12, and the opening of the groove 13 on the top surface of the rectangular side wall 12 is closed; fluid concrete that meets the ratio requirements is poured into the molding cavity 3, vibrated, smoothed, and covered with plastic film for water retention and maintenance; after the concrete in the molding cavity 3 is solidified and formed (for example, initial setting), the upper mold 2 is lifted to separate it from the prefabricated product after solidification and formation, and then the prefabricated product after solidification and formation is turned over and poured out from the lower mold 1 for stacking and natural maintenance.

[0055] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A production mold for prefabricated assembled cavity floor components, characterized in that: include: A lower mold (1) comprises a bottom plate (11), a rectangular side wall (12) located on the bottom plate (11), and a plurality of grooves (13) located on the top surface of the rectangular side wall (12) for placing steel bars; The upper mold (2) has a rectangular frame (21) adapted to the rectangular side wall (12), a plurality of teeth (22) located on the inner circle of the rectangular frame (21), and a tooth groove (23) located between two adjacent teeth (22); The upper mold (2) is detachably mounted on the lower mold (1) to form a molding cavity (3) with an open top to accommodate the material that forms the cavity floor component after solidification, and the bottom surface of the rectangular frame (21) is in contact with or substantially in contact with the top surface of the rectangular side wall (12), closing the opening of the groove (13) on the top surface of the rectangular side wall (12), and the tooth portion (22) is located on the inner side of the rectangular side wall (12).

2. The production mold of the prefabricated assembled cavity floor component according to claim 1 is characterized in that: An extension portion (24) protruding from the bottom surface of the rectangular frame (21) is formed at the edge of the upper mold (2), and the tooth portion (22) protrudes from the bottom surface of the rectangular frame (21), thereby forming an engaging groove (25) between the tooth portion (22) and the extension portion (24), and the rectangular side wall (12) is at least partially engaged in the engaging groove (25) to realize a detachable connection between the lower mold (1) and the upper mold (2).

3. The production mold of the prefabricated assembled cavity floor component according to claim 1 is characterized in that: The inner side wall of the rectangular side wall (12) is an inclined wall for easy demoulding. When the upper mold (2) is installed on the lower mold (1), the portion of the tooth portion (22) protruding from the bottom surface of the rectangular frame (21) is attached to the inclined wall.

4. The production mold for prefabricated assembled cavity floor components according to claim 1, characterized in that: When the upper die (2) is mounted on the lower die (1), each tooth groove (23) corresponds to at least one groove (13).

5. The production mold for prefabricated assembled cavity floor components according to claim 1, characterized in that: The bottom surface of the lower mold (1) has a convex portion (14) located inside the rectangular side wall (12), and a circle of concave portions (15) located outside the convex portion (14).

6. The production mold for prefabricated assembled cavity floor components according to claim 5, characterized in that: The convex portion (14) is provided with at least one group of mutually intersecting strip-shaped grooves (16).

7. The production mold for prefabricated assembled cavity floor components according to claim 5, characterized in that: A step portion (17) is provided between the recess (15) and the inner wall surface of the rectangular side wall (12).

8. The production mold for prefabricated assembled cavity floor components according to claim 1, characterized in that: A plurality of support portions (18) for easy stacking are evenly arranged on the bottom plate (11).

9. The production mold for prefabricated assembled cavity floor components according to claim 8, characterized in that: A clearance groove (26) is provided on the upper mold (2) at a position corresponding to the support portion (18); when the two groups of production molds are stacked, the support portion (18) in the upper production mold is embedded in the clearance groove (26) in the lower production mold.

10. The production mold for prefabricated assembled cavity floor components according to claim 1, characterized in that: The inner wall surface of the rectangular frame (21) and the wall surface of the tooth portion (22) are inclined walls that facilitate demoulding of the upper mold (2) in a direction perpendicular to the bottom surface of the lower mold (1).

11. The production mold for prefabricated assembled cavity floor components according to claim 1, characterized in that: The lower mold (1) and / or the upper mold (2) are integrally compression molded or integrally injection molded.

12. The production mold for prefabricated assembled cavity floor components according to claim 1, characterized in that: The outer side wall of the rectangular side wall (12) is provided with reinforcing ribs.

Images