A combined demoulding mold for precast concrete components

Abstract

The present invention discloses a combined demolding mold for concrete precast members, including a mold basin. At least one mold cavity is provided in the mold basin. The combined demolding mold for concrete precast members further includes a transfer mechanism, on which a vacuum chuck for sucking the members is provided. A push rod for pushing the members is provided at the bottom of the mold basin. The present invention has the advantages of simple structure, low cost, convenient demolding, and avoiding damage to the members.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and particularly relates to a combined demolding mold for concrete precast components. Background Art

[0002] The existing grouped molds for small precast components have a complex structure and a relatively high mold manufacturing cost. After the components are cured, manual demolding or impact demolding by using the self - gravity of the components after flipping is usually adopted. Demolding requires a large amount of manpower, with low efficiency and high labor intensity. Due to the large friction force between the components and the mold, it is difficult to demold all the components at one time by flipping demolding, and it needs to be operated repeatedly for several times, with poor stability, which reduces the demolding efficiency. Moreover, this demolding method is likely to cause corners and cracks in the concrete components. In addition, after the components are demolded, they need to be transported by means of transportation equipment or manpower, which is not convenient and also reduces the production efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a concrete precast component mold with a simple structure, low cost, convenient demolding and avoiding damage to the components.

[0004] To solve the above - mentioned technical problem, the present invention adopts the following technical solutions:

[0005] A combined demolding mold for concrete precast components, including a mold basin. At least one mold cavity is arranged in the mold basin. The combined demolding mold for concrete precast components further includes a transfer mechanism. A vacuum sucker for sucking the components is arranged on the transfer mechanism. A top push rod for pushing the components is arranged at the bottom of the mold basin.

[0006] As a further improvement of the above - mentioned technical solution: The mold basin includes a bottom mold and a side mold arranged on the bottom mold. The top push rod is provided with an elastic return structure and a limiting structure for making the top push rod return to a position where its upper end surface is flush with the upper surface of the bottom mold.

[0007] As a further improvement of the above - mentioned technical solution: An installation seat is arranged on the bottom mold. The top push rod penetrates through the installation seat. Both the limiting structure and the elastic return structure are arranged in the installation seat. The elastic return structure includes a return spring sleeved on the top push rod. One end of the return spring abuts against the installation seat, and the other end abuts against the limiting structure.

[0008] As a further improvement of the above - mentioned technical solution: An installation seat is arranged on the bottom mold. The top push rod penetrates through the installation seat. The limiting structure is arranged in the installation seat, and the elastic return structure is arranged outside the installation seat. The elastic return structure includes a return spring sleeved on the top push rod and a thrust - stopping part fixed on the top push rod. One end of the return spring abuts against the installation seat, and the other end abuts against the thrust - stopping part.

[0009] As a further improvement of the above technical solution: A seal is provided in the mounting base or the bottom mold for sealing the top push rod.

[0010] As a further improvement of the above technical solution: The mounting base includes a base fixedly connected to the bottom mold and an end cover detachably connected to the base.

[0011] As a further improvement of the above technical solution: The limiting structure includes a limiting step, a shaft retaining ring or a plurality of convex portions arranged along the circumferential direction of the top push rod.

[0012] As a further improvement of the above technical solution: A telescopic gasket is laid on the bottom mold, and the bottom mold, the side mold and the gasket are connected by fasteners.

[0013] As a further improvement of the above technical solution: The upper surface of the gasket is provided with patterns and / or fonts.

[0014] As a further improvement of the above technical solution: The gasket is a rubber gasket, a silica gel gasket or a polyurethane gasket.

[0015] Compared with the prior art, the advantages of the present invention are as follows: The combined demolding mold for concrete precast components disclosed by the present invention has a simple and stable structure, can manufacture an integral mold cavity without other accessories, and has a low manufacturing cost; The combined demolding is carried out by using a vacuum suction cup to suck and a bottom top push rod to push, the demolding is stable and smooth, the adsorption force required by the vacuum suction cup is small, the stress area of the component is large, the load is evenly and gently applied, and the component is not easily damaged; During demolding, it is not necessary to flip the mold basin to directly carry out demolding, which reduces the production process and shortens the production cycle; After demolding, the transfer work can be directly completed by using a transfer mechanism without relying on other equipment or manual transfer, which greatly improves the production efficiency.

[0016] Furthermore, for special components with patterns and / or fonts on the surface, corresponding patterns and fonts can be processed on the upper surface of the gasket to meet the requirements. Compared with directly processing patterns and fonts on the bottom mold (the bottom mold and the side mold are usually steel molds), the process is simpler and the manufacturing cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view structural schematic diagram of the combined demolding mold for concrete precast components of the present invention.

[0018] Figure 2 is the top view structural schematic diagram of the combined demolding mold for concrete precast components of the present invention.

[0019] Figure 3 is the flowchart of the demolding method of the combined demolding mold for concrete precast components of the present invention.

[0020] Figure 4It is a schematic cross-sectional structure diagram of Embodiment 1 of the present invention.

[0021] Figure 5 It is a schematic cross-sectional structure diagram when demolding Embodiment 1 of the present invention.

[0022] Figure 6 It is a schematic cross-sectional structure diagram of Embodiment 2 of the present invention.

[0023] Figure 7 It is a schematic cross-sectional structure diagram of Embodiment 3 of the present invention.

[0024] Figure 8 It is a schematic cross-sectional structure diagram when demolding Embodiment 3 of the present invention.

[0025] Each label in the figure represents: 1, mold basin; 11, mold cavity; 12, bottom mold; 13, side mold; 2, vacuum suction cup; 21, transfer mechanism; 22, vacuum pump; 3, component; 4, top push rod; 5, elastic return structure; 51, return spring; 52, thrust stop part; 6, limit structure; 7, mounting seat; 71, base; 72, end cover; 8, seal; 9, gasket; 10, fastener. Detailed implementation manners

[0026] The present invention will be further described in detail below in conjunction with the specification drawings and specific embodiments.

[0027] Embodiment 1

[0028] Figures 1 to 5 An embodiment of the combined demolding mold for concrete precast components of the present invention is shown. The combined demolding mold for concrete precast components in this embodiment includes a mold basin 1. The mold basin 1 includes a bottom mold 12 and a side mold 13 arranged above the bottom mold 12. The bottom mold 12 and the side mold 13 are of an integral structure. Of course, in other embodiments, a split structure may also be adopted and fixed and connected by means such as welding and fasteners 10; at least one mold cavity 11 is arranged in the mold basin 1. The combined demolding mold for concrete precast components further includes a transfer mechanism 21 (for example, it can be a common manipulator, mobile trolley + mobile track, etc.). A vacuum suction cup 2 is arranged on the transfer mechanism 21, and a top push rod 4 for pushing the component 3 is arranged on the bottom mold 12.

[0029] This combined demolding mold for precast concrete components has a simple and stable structure. It can produce an integral mold cavity 11 without other accessories, with low manufacturing costs. Demolding is achieved by using a vacuum suction cup 2 to suck and a bottom push rod 4 to push up the cabinet. The demolding is stable and smooth. The vacuum suction cup 2 requires a small adsorption force, the component 3 has a large stress area, and the load is evenly and gently applied, making it not easy to cause damage. During demolding, it is not necessary to flip the mold basin 1, which reduces production processes and shortens the production cycle. After demolding, the transfer mechanism 21 can be directly used to complete the transfer work without relying on other equipment or manual transfer, greatly improving production efficiency. As an optimized technical solution, in this embodiment, both the mold cavity 11 and the vacuum suction cup 2 are provided in multiple numbers and arranged in one-to-one correspondence, so as to achieve batch production, batch demolding, and batch transfer, which is suitable for large-scale production.

[0030] After the component is formed, the push rod 4 pushes up the component 3 upward. During the upward movement of the component 3, the component 3 rises accordingly until the push rod 4 stops rising after the component 3 is separated from the mold basin 1. Then the vacuum suction cup 2 adsorbs the component 3 alone to complete demolding and the transfer of the component 3.

[0031] Furthermore, in this embodiment, the push rod 4 is equipped with an elastic return structure 5 and a limit structure 6 for returning the push rod 4 to a position where its upper end surface is flush with the upper surface of the bottom mold 12. During the pushing process of the push rod 4, the elastic return structure 5 is compressed. After demolding, the push rod 4 returns under the action of the elastic return structure 5. The limit structure 6 is used to ensure that the upper end surface of the push rod 4 is flush with the upper surface of the bottom mold 12, which can be directly used for the next production cycle without additional auxiliary parts that need to be installed and removed during the production process, eliminating the need for personnel or equipment investment in the disassembly and assembly of auxiliary parts, and being more conducive to realizing automated continuous production.

[0032] Even further, in this embodiment, an installation seat 7 is provided on the bottom mold 12. The push rod 4 passes through the installation seat 7. Both the limit structure 6 and the elastic return structure 5 are arranged inside the installation seat 7. The elastic return structure 5 includes a return spring 51 sleeved on the push rod 4. One end of the return spring 51 abuts against the installation seat 7, and the other end abuts against the limit structure 6. In this structure, on the one hand, the limit structure 6 is in limit cooperation with the installation seat 7 to position the push rod 4 and ensure that the upper end surface of the push rod 4 is flush with the upper surface of the bottom mold 12 after returning; on the other hand, it provides a working surface for the return spring 51 to drive the push rod 4 to return. Among them, the limit structure 6 can be, for example, a limit step, a shaft retaining ring, or multiple protrusions arranged along the circumferential direction of the push rod 4, etc., all of which can achieve the above two functions. Arranging both the limit structure 6 and the elastic return structure 5 inside the installation seat 7 is beneficial to reducing the vertical size of the mold and avoiding exposure, providing a certain protection for the limit structure 6 and the elastic return structure 5.

[0033] As a preferred technical solution, in this embodiment, the mounting seat 7 is of a T-shaped structure, with the end having a smaller diameter passing through the bottom die 12, and the end having a larger diameter exposed and welded and fixed. A seal 8 (such as a common O-ring) for sealing the top push rod 4 is provided inside the mounting seat 7. Since the top push rod 4 needs to move up and down, there will be a gap between it and the mounting seat 7. Setting the seal 8 helps prevent the leakage of the slurry. Of course, in other embodiments, with the adjustment of the structure of the mounting seat 7, the seal 8 can also be provided on the bottom die 12.

[0034] As a preferred technical solution, in this embodiment, the mounting seat 7 includes a base 71 fixedly connected to the bottom die 12 and an end cover 72 detachably connected to the base 71. With this structure, it is convenient to disassemble the mounting seat 7 to replace the return spring 51, the limit structure 6, etc.

[0035] Embodiment Two

[0036] Figure 6 Another embodiment of the combined demoulding die for concrete precast members of the present invention is shown. The combined demoulding die for concrete precast members in this embodiment is basically the same as that in Embodiment One, except that in this embodiment, a mounting seat 7 is provided on the bottom die 12, the top push rod 4 passes through the mounting seat 7, the limit structure 6 is arranged inside the mounting seat 7, and the elastic return structure 5 is arranged outside the mounting seat 7. The elastic return structure 5 includes a return spring 51 sleeved on the top push rod 4 and a thrust stop 52 fixed on the top push rod 4. One end of the return spring 51 abuts against the mounting seat 7, and the other end abuts against the thrust stop 52. The vertical dimension of this embodiment is increased compared with Embodiment One, and at the same time, a thrust stop 52 needs to be provided on the top push rod 4. Among them, the structure of the thrust stop 52 can be the same as that of the limit structure 6.

[0037] Embodiment Three

[0038] Figures 7 to 8 Another embodiment of the combined demoulding die for concrete precast members of the present invention is shown. The combined demoulding die for concrete precast members in this embodiment is basically the same as that in Embodiment One and Embodiment Two, except that in this embodiment, a telescopic gasket 9 is laid on the bottom die 12, and the bottom die 12, the side die 13 and the gasket 9 are connected by fasteners 10 (which means that the bottom die 12 and the side die 13 are no longer of an integral structure). Since the bottom die 12 and the side die 13 are not of an integral structure, setting the gasket 9 helps seal the gap between the bottom die 12 and the side die 13 to avoid the leakage of the slurry. At the same time, there is no need to set the seal 8, and no mark will be left on the member 3 when the top push rod 4 pushes for demoulding. With the telescopic gasket 9, when the top push rod 4 pushes for demoulding, the gasket 9 can deform to facilitate demoulding.

[0039] As a preferred technical solution, the upper surface of the gasket 9 is provided with patterns and / or fonts (specifically such as Figure 6As shown, its upper surface has an uneven structure). For the special component 3 with patterns and / or fonts on its surface, corresponding patterns and fonts can be processed on the upper surface of the gasket 9 to meet the requirements. Compared with directly processing patterns and fonts on the bottom mold 12 (the bottom mold 12 and the side mold 13 are usually steel molds), the process is simpler and the manufacturing cost is lower.

[0040] As a preferred technical solution, the gasket 9 can be, for example, a rubber gasket, a silicone gasket or a polyurethane gasket, which is easy to deform under pressure, has good sealing performance, and is wear-resistant and has a long service life.

[0041] Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A combined demoulding mould for precast concrete components, comprising a mould basin (1), wherein at least one mould cavity (11) is arranged in the mould basin (1), and it is characterized in that: The combined demoulding mould for precast concrete components further includes a transfer mechanism (21). A vacuum chuck (2) for sucking the components (3) is provided on the transfer mechanism (21). A push rod (4) for pushing the components (3) is provided at the bottom of the mould basin (1). The mould basin (1) includes a bottom mould (12) and side moulds (13) provided on the bottom mould (12). The bottom mould (12) and the side moulds (13) are steel moulds. A retractable sealing gasket (9) is laid on the bottom mould (12). The bottom mould (12), the side moulds (13) and the sealing gasket (9) are connected by fasteners (10).

2. The combined demoulding mold for precast concrete members according to claim 1, characterized in that: The push rod (4) is provided with an elastic return structure (5) and a limiting structure (6) for returning the push rod (4) to a position where the upper end surface is flush with the upper surface of the bottom mould (12).

3. The combined demoulding mold for precast concrete members according to claim 2, characterized in that: An installation seat (7) is provided on the bottom mould (12). The push rod (4) passes through the installation seat (7). Both the limiting structure (6) and the elastic return structure (5) are arranged inside the installation seat (7). The elastic return structure (5) includes a return spring (51) sleeved on the push rod (4). One end of the return spring (51) abuts against the installation seat (7), and the other end abuts against the limiting structure (6).

4. The combined demoulding mould for precast concrete components according to claim 2, wherein: An installation seat (7) is provided on the bottom mould (12). The push rod (4) passes through the installation seat (7). The limiting structure (6) is arranged inside the installation seat (7), and the elastic return structure (5) is arranged outside the installation seat (7). The elastic return structure (5) includes a return spring (51) sleeved on the push rod (4) and a thrust portion (52) fixed on the push rod (4). One end of the return spring (51) abuts against the installation seat (7), and the other end abuts against the thrust portion (52).

5. The combined demoulding mold for precast concrete members according to claim 3 or 4, characterized in that: A seal (8) for sealing the push rod (4) is provided inside the installation seat (7) or the bottom mould (12).

6. The combined demoulding mold for precast concrete members according to claim 3 or 4, characterized in that: The installation seat (7) includes a base (71) fixedly connected to the bottom mould (12) and an end cover (72) detachably connected to the base (71).

7. The combined demolding mold for precast concrete members according to claim 3 or 4, characterized in that: The limiting structure (6) includes a limiting step, a shaft retaining ring or a plurality of convex portions arranged circumferentially along the push rod (4).

8. The combined demolding mold for precast concrete members according to any one of claims 2 to 4, characterized in that: Patterns and / or characters are provided on the upper surface of the sealing gasket (9).

9. The combined demolding mold for precast concrete components according to any one of claims 2 to 4, characterized in that: The sealing gasket (9) is a rubber gasket, a silica gel gasket or a polyurethane gasket.

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