A rapid demoulding device for concrete precast components

Abstract

The utility model relates to a kind of concrete prefabricated component quick stripping device, belong to concrete prefabricated component production technical field, including rack, linear slide rail and open-close mould, the linear slide rail is provided with stripping structure.This concrete prefabricated component quick stripping device, using electric push rod and the transmission of gear rack, realize the synchronous automatic opening and closing of two end moulds, significantly reduce worker's labor intensity, end mould synchronous separation reduces the friction of mould and concrete component, cooperate with the vertical jacking of hydraulic lifting platform, reduce the possibility of concrete component damage, and further improve stripping efficiency, the sliding fit of stable frame and concave frame, ensure that mould opening and closing process is stable, avoid the component damage or mould deformation due to uneven stress, further ensure the integrity of concrete component, reduce the workload of subsequent repair process, and one hydraulic lifting platform can serve multiple open-close moulds, reduce equipment cost, optimize production process.

Description

Technical Field

[0001] This utility model relates to the field of precast concrete component production technology, specifically a rapid demolding device for precast concrete components. Background Technology

[0002] The production of precast concrete components includes raw material and mold preparation, concrete mixing and pouring, concrete curing, demolding and finished product inspection, surface treatment and repair, labeling and storage. Among these, demolding and finished product inspection are necessary after the concrete has reached a certain strength. Demolding equipment is used to lift the precast concrete components inside the mold. During demolding, care must be taken to protect the surface and edges of the components to avoid damage. Then, the demolded precast components are visually inspected to check for defects such as cracks, honeycombing, pitting, and missing edges. The demolding equipment usually used is a jack or demolding machine, which uses a hydraulic system to lift the precast components.

[0003] Chinese invention patent announcement number CN115648394A discloses an automatic demolding mold for precast concrete components in prefabricated buildings. In actual use, the mold needs to be manually disassembled, which makes the labor intensity of workers high. Moreover, due to the weight of the precast concrete components themselves, it is difficult to disassemble the mold, thus affecting the demolding efficiency of the precast concrete components. Therefore, a rapid demolding device for precast concrete components is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a rapid demolding device for precast concrete components. It has the advantages of rapid demolding and ensuring the integrity of the precast concrete components. It solves the problem that in actual use, manual disassembly of the mold is required, which increases the labor intensity of workers. Moreover, due to the weight of the precast concrete components themselves, it is difficult to disassemble the mold, thus affecting the demolding efficiency of the precast concrete components.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid demolding device for precast concrete components, comprising a frame, a linear slide rail, and an openable mold, wherein a demolding structure is provided on the linear slide rail;

[0006] The opening and closing mold includes a middle mold, two end molds, two stabilizing frames, two concave frames, two racks, a gear, and an electric push rod. The middle mold is fixedly installed on the frame. The two end molds are respectively installed at both ends of the middle mold. The two stabilizing frames are fixedly installed at the bottom of the middle mold. The two concave frames are respectively fixedly installed at the bottom of the two end molds and are slidably connected to the two stabilizing frames. The two racks are respectively fixedly installed on the two concave frames. The gear is rotatably installed at the bottom of the middle mold and meshes with the two racks. The electric push rod is fixedly installed at the bottom of the middle mold, and the telescopic end of the electric push rod is fixedly connected to one of the concave frames.

[0007] Furthermore, the demolding structure includes a hydraulic lifting platform, a demolding template, and four guide pillars. The hydraulic lifting platform is slidably mounted on a linear slide rail. The demolding template is installed inside the middle mold and the two end molds. The four guide pillars are respectively fixedly connected to the bottom of the demolding template, and one end of each guide pillar passes through the connection between the middle mold and the two end molds.

[0008] Furthermore, the two ends of the middle mold are provided with a joint portion with a thickness of five millimeters, and each of the two end molds has an insertion groove adapted to the joint portion on its opposite side.

[0009] Furthermore, both of the stabilizing frames are integral structures consisting of a rectangular frame and two side plates, and both of the concave frames are integral structures consisting of a concave frame and a boss. The size of the boss is adapted to the inner diameter of the rectangular frame, and the side plates are adapted to the inner diameter of the smaller end of the concave frame.

[0010] Furthermore, the gear is rotatably mounted at the center of the bottom of the intermediate mold, and the two racks are symmetrical about the gear's central axis.

[0011] Furthermore, the hydraulic lifting platform includes a housing, a hydraulic unit, a scissor bracket, and a platform. The hydraulic unit and the scissor bracket are both installed inside the housing, and the platform is located on the top of the housing and is hinged to the scissor bracket.

[0012] Furthermore, the opening and closing mold, the demolding template, and the four guide columns are all mounted on the frame in multiple sets.

[0013] Furthermore, the linear slide rail is fixedly installed on the frame, and the linear slide rail is located below the opening and closing mold and the demolding structure.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This rapid demolding device for precast concrete components, equipped with an opening and closing mold and a demolding structure, utilizes an electric push rod and gear rack transmission to achieve synchronous automatic opening and closing of two end molds. This replaces the traditional manual mold disassembly method, significantly reducing worker labor intensity. Synchronous mold separation reduces friction between the mold and the concrete component. Combined with the vertical lifting of the hydraulic lifting platform, this reduces the possibility of concrete component damage and further improves demolding efficiency. The sliding fit between the stable frame and the concave frame ensures a smooth mold opening and closing process, preventing component damage or mold deformation due to uneven stress, further ensuring the integrity of the concrete component, reducing the workload of subsequent repair processes. Furthermore, one hydraulic lifting platform can serve multiple sets of opening and closing molds, reducing equipment costs and optimizing the production process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 1 Exploded view;

[0018] Figure 3 This is an enlarged view of the opening and closing mold structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the unfolded state of the opening and closing mold of this utility model;

[0020] Figure 5 This is an exploded view of the opening and closing mold structure of this utility model;

[0021] Figure 6 This is a three-dimensional schematic diagram of the structurally stable frame and concave frame of this utility model.

[0022] In the diagram: 1. Frame; 2. Linear slide rail; 3. Opening mold; 31. Middle mold; 32. End mold; 33. Stabilizing frame; 34. Concave frame; 35. Rack; 36. Gear; 37. Electric push rod; 4. Demolding structure; 41. Hydraulic lifting platform; 42. Demolding template; 43. Guide column. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figure 1-6The rapid demolding device for precast concrete components in this embodiment includes a frame 1, a linear slide rail 2 and an openable mold 3. A demolding structure 4 is provided on the linear slide rail 2. The linear slide rail 2 is fixedly installed on the frame 1 and is located below the openable mold 3 and the demolding structure 4.

[0025] Example 2: Please refer to Figure 1-6 Based on Embodiment 1, the opening and closing mold 3 includes a middle mold 31, two end molds 32, two stabilizing frames 33, two concave frames 34, two racks 35, a gear 36, and an electric push rod 37. The middle mold 31 is fixedly installed on the frame 1. The two end molds 32 are respectively installed at both ends of the middle mold 31. The two stabilizing frames 33 are both fixedly installed at the bottom of the middle mold 31. The two concave frames 34 are respectively fixedly installed at the bottom of the two end molds 32. The two concave frames 34 are slidably connected to the two stabilizing frames 33. The two racks 35 are respectively fixedly installed on the two concave frames 34. The gear 36 is rotatably installed at the bottom of the middle mold 31 and meshes with the two racks 35 respectively. The electric push rod 37 is fixedly installed at the bottom of the middle mold 31, and the telescopic end of the electric push rod 37 is fixedly connected to one of the concave frames 34.

[0026] The middle mold 31 has a five-millimeter-thick butt joint at both ends, and each of the two end molds 32 has an insertion groove on its opposite side that matches the butt joint. The butt joints at both ends of the middle mold 31 are inserted into the insertion grooves of the end molds 32 to form a tight fit, ensuring that there is no leakage of grout at the mold joints during concrete pouring. At the same time, it provides accurate initial positioning for the sliding separation of the end molds. The five-millimeter-thick butt joints and insertion grooves match, improving the mold's sealing performance and avoiding surface defects of the components caused by concrete grout leakage. The insertion structure simplifies the alignment process during mold assembly and improves the efficiency of mold installation.

[0027] In addition, both stabilizing frames 33 are integral structures consisting of rectangular frames and two side plates, and both concave frames 34 are integral structures consisting of concave frames and bosses. The size of the bosses is adapted to the inner diameter of the rectangular frames, and the side plates are adapted to the inner diameter of the smaller end of the concave frames. The rectangular frames of the stabilizing frames 33 and the bosses of the concave frames 34 are slidably connected, and the side plates are adapted to the inner diameter of the smaller end of the concave frames, forming a "convex-concave nested" structure. This restricts the vertical displacement of the end mold during the opening and closing process, allowing only horizontal sliding. The nested structure ensures that the end mold moves smoothly in the horizontal direction, avoiding the sticking of components to the mold due to mold shaking, reducing demolding resistance. The integral frame structure enhances the load-bearing capacity of the bottom of the mold, adapting to the demolding requirements of heavy precast components.

[0028] It should be noted that the gear 36 is rotatably mounted at the center of the bottom of the intermediate mold 31, and the two racks 35 are symmetrical about the central axis of the gear 36. When the electric push rod pushes one rack, the gear rotates and drives the other rack to move in the opposite direction, realizing the synchronous opening and closing of the end molds. The symmetrical meshing design ensures that the two end molds are subjected to uniform force and move at the same speed, avoiding mold deformation or component damage caused by unilateral force. The gear and rack transmission structure is simple and reliable. Compared with the traditional linkage mechanism, it reduces mechanical loss and improves the stability of mold opening and closing.

[0029] Using the above technical solution, after the electric push rod 37 is started, its telescopic end pushes one side of the concave frame 34 to slide along the stabilizing frame 33. Since the gear 36 meshes with the racks 35 on both sides, the movement of one side of the concave frame will drive the other side of the rack to move in the opposite direction through gear transmission, so that the two end molds 32 move synchronously away from the middle mold 31, completing the automatic opening and closing of the mold. The sliding connection between the stabilizing frame 33 and the concave frame 34 ensures the stability of the end mold during movement and avoids tilting or jamming.

[0030] Example 3: Please refer to Figure 1-6 Based on Embodiment 2, the demolding structure 4 includes a hydraulic lifting platform 41, a demolding template 42, and four guide pillars 43. The hydraulic lifting platform 41 is slidably installed on the linear slide rail 2. The demolding template 42 is installed inside the middle mold 31 and the two end molds 32. The four guide pillars 43 are fixedly connected to the bottom of the demolding template 42 respectively. One end of the four guide pillars 43 passes through the connection between the middle mold 31 and the two end molds 32.

[0031] The hydraulic lifting platform 41 includes a housing, a hydraulic unit, a scissor-type support, and a platform. The hydraulic unit and the scissor-type support are installed inside the housing. The platform is located on the top of the housing and is hinged to the scissor-type support. The hydraulic unit inputs hydraulic oil into the scissor-type support through an oil pump, which pushes the platform to rise and fall vertically. The platform is fixedly connected to the demolding template, thereby realizing the lifting and demolding of precast components. The scissor-type support works in conjunction with the hydraulic system to provide high thrust and stable lifting motion, adapting to the demolding requirements of precast components of different weights.

[0032] In addition, multiple sets of openable molds 3, demolding molds 42 and four guide columns 43 are installed on the frame 1. Each set of molds can be independently cast, cured and demolded. The hydraulic lifting platform 41 moves between the sets of molds through linear slide rails to realize assembly line operation.

[0033] Using the above technical solution, the hydraulic lifting platform 41 of the demolding structure 4 moves along the linear slide rail 2 to the bottom of the mold, and the platform is driven to rise by hydraulic power, which drives the demolding formwork 42 to lift the precast concrete component. The guide column 43 passes through the mold connection to ensure that the demolding formwork rises vertically and avoids uneven stress on the component.

[0034] The working principle of the above embodiments is as follows:

[0035] This rapid demolding device for precast concrete components starts working during the production process of precast concrete components after the concrete has reached a certain strength.

[0036] First, the electric push rod 37 is activated, and its telescopic end pushes one side of the concave frame 34 to slide along the stable frame 33. Since the gear 36 meshes with the two racks 35 respectively, and the two racks 35 are symmetrical about the central axis of the gear 36, the movement of one side of the concave frame 34 will be transmitted through the gear 36, driving the other side of the concave frame 34 to move synchronously in the opposite direction, thereby causing the two end molds 32 to move synchronously away from the middle mold 31, completing the automatic opening of the opening and closing mold 3;

[0037] At the same time, the hydraulic lifting platform 41 slides on the linear slide rail 2 to the bottom of the openable mold 3. The hydraulic unit in the hydraulic lifting platform 41 works, and the hydraulic oil is input into the scissor bracket through the oil pump, pushing the platform to rise. The platform drives the demolding formwork 42 to move upward. One end of the four guide columns 43 fixed at the bottom of the demolding formwork 42 passes through the connection between the middle mold 31 and the two end molds 32. This ensures that the demolding formwork 42 remains vertical during the rising process, avoiding uneven stress on the precast concrete components. As the demolding formwork 42 rises, the precast concrete components are pushed out of the mold, completing the demolding process.

[0038] Furthermore, the hydraulic lifting platform 41 can move along the linear slide rail 2 between different molds to perform demolding operations on multiple sets of molds in sequence.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid demolding device for precast concrete components, comprising a frame (1), a linear slide rail (2), and an opening and closing mold (3), characterized in that: The linear slide rail (2) is provided with a demolding structure (4); The opening and closing mold (3) includes a middle mold (31), two end molds (32), two stabilizing frames (33), two concave frames (34), two racks (35), a gear (36), and an electric push rod (37). The middle mold (31) is fixedly installed on the frame (1). The two end molds (32) are respectively installed at both ends of the middle mold (31). The two stabilizing frames (33) are fixedly installed at the bottom of the middle mold (31). The two concave frames (34) are respectively fixedly installed at the bottom of the middle mold (31). The two concave frames (34) are slidably connected to the two stabilizing frames (33) respectively, and the two racks (35) are fixedly installed on the two concave frames (34) respectively. The gear (36) is rotatably installed on the bottom of the middle mold (31) and meshes with the two racks (35) respectively. The electric push rod (37) is fixedly installed on the bottom of the middle mold (31) and the telescopic end of the electric push rod (37) is fixedly connected to one of the concave frames (34).

2. The rapid demolding device for precast concrete components according to claim 1, characterized in that: The demolding structure (4) includes a hydraulic lifting platform (41), a demolding template (42), and four guide columns (43). The hydraulic lifting platform (41) is slidably installed on a linear slide rail (2). The demolding template (42) is installed inside the middle mold (31) and the two end molds (32). The four guide columns (43) are fixedly connected to the bottom of the demolding template (42) respectively. One end of the four guide columns (43) passes through the connection between the middle mold (31) and the two end molds (32).

3. The rapid demolding device for precast concrete components according to claim 1, characterized in that: The middle mold (31) has a five-millimeter-thick docking part at both ends, and the two end molds (32) have a plug-in groove adapted to the docking part on their opposite sides.

4. The rapid demolding device for precast concrete components according to claim 1, characterized in that: Both of the stabilized frames (33) are integral structures consisting of a rectangular frame and two side plates, and both of the concave frames (34) are integral structures consisting of a concave frame and a boss. The size of the boss is adapted to the inner diameter of the rectangular frame, and the side plates are adapted to the inner diameter of the smaller end of the concave frame.

5. The rapid demolding device for precast concrete components according to claim 1, characterized in that: The gear (36) is rotatably mounted at the center of the bottom of the intermediate mold (31), and the two racks (35) are symmetrical about the central axis of the gear (36).

6. A rapid demolding device for precast concrete components according to claim 2, characterized in that: The hydraulic lifting platform (41) includes a housing, a hydraulic unit, a scissor bracket, and a platform. The hydraulic unit and the scissor bracket are both installed inside the housing, and the platform is located on the top of the housing and is hinged to the scissor bracket.

7. A rapid demolding device for precast concrete components according to claim 2, characterized in that: The opening and closing mold (3), the stripping mold (42) and the four guide pillars (43) are all installed on the frame (1) in multiple sets.

8. The rapid demolding device for precast concrete components according to claim 1, characterized in that: The linear slide rail (2) is fixedly installed on the frame (1) and is located below the opening and closing mold (3) and the demolding structure (4).

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