Demolding device for concrete prefabricated part production

By designing a demolding device that uses a motor-driven rotating screw to achieve demolding without flipping, the problem of time-consuming, labor-intensive, and safety hazards associated with manual mold flipping in existing technologies is solved, thus realizing an efficient and safe demolding process.

CN223933860UActive Publication Date: 2026-02-24FUJIAN JINGFA INTERNET OF THINGS TECH CO LTD
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Patent Information

Application Number
CN202520523779.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-02-24
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The current process of demolding precast concrete components requires manual turning of the mold, which is labor-intensive, poses safety hazards, and the precast components are easily damaged and can injure workers.

Method used

Design a demolding device that uses a forward and reverse motor to drive a rotating screw, which moves the inner mold upward and opens the side plate of the inner mold, so that demolding can be achieved without flipping, reducing manual operation and protecting the precast parts.

Benefits of technology

It reduces manual labor, avoids damage to prefabricated components and personal injury, and improves safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of concrete prefabricated part production, in particular to a demoulding device for concrete prefabricated part production, which comprises a demoulding support, an outer mould box is fixed in the demoulding support, a support template is arranged in the outer mould box, fixed vertical rods are arranged on the left side and the right side of the outer mould box, and the fixed vertical rods are fixed on the demoulding support. A forward and reverse motor is installed at the top of the fixed vertical rod, the output end of the forward and reverse motor penetrates through the interior of the fixed vertical rod and is connected with a rotating screw rod, and the outer side of the rotating screw rod is sleeved with a screw rod sliding sleeve in a threaded mode. And the problems that when the concrete prefabricated part falls out of the mold, the prefabricated part falling on the ground is prone to being damaged, and surrounding workers are prone to being hurt are solved.
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Description

Technical Field

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

[0002] In recent years, with the development of the construction industry, more and more people are choosing precast concrete components when building houses. Compared with traditional cast-in-place concrete, the construction environment of precast concrete components is safer than on-site construction. Furthermore, the precast dimensions can significantly improve the installation speed and construction progress. At the same time, the amount of on-site work is significantly reduced when using precast concrete components, which can effectively reduce dust and noise pollution. In the production process of precast concrete components, the concrete raw materials are first placed into the mold through a material placing mechanism, and then dried and solidified. After drying and solidification, demolding is required.

[0003] Currently, when demolding precast concrete components, workers typically need to manually move the mold containing the component to a metal frame and flip it so that the opening faces downwards. Only then can workers take out a hammer (such as a rubber mallet) and repeatedly strike the edge of the mold until the precast concrete component falls out of the mold opening and onto the ground. This method increases the workload of workers, is time-consuming and labor-intensive, and currently there is no way to protect the precast concrete component and the surrounding workers when it falls out of the mold. The precast concrete component that falls to the ground is easily damaged and may also cause injury to the surrounding workers.

[0004] Therefore, it is particularly important to design a demolding device for the production of precast concrete components to overcome the above-mentioned technical defects and improve the overall practicality. Utility Model Content

[0005] The purpose of this invention is to provide a demolding device for the production of precast concrete components, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A demolding device for producing precast concrete components includes a demolding bracket, an outer mold box fixed inside the demolding bracket, a supporting template inside the outer mold box, fixed uprights on both the left and right sides of the outer mold box, a forward and reverse motor installed on the top of the fixed uprights, the output end of the forward and reverse motor passing through the interior of the fixed uprights and connected to a rotating screw, a screw sleeve threaded onto the outer side of the rotating screw, an inner mold base plate on the top of the supporting template, and inner mold side plates rotatably connected to the four sides of the top of the inner mold base plate through multiple sets of evenly distributed hinge assemblies, with two adjacent sets of inner mold side plates connected by locking screws, and locking nuts threaded onto the outer side of the locking screws.

[0008] As a preferred embodiment of this utility model, a controller is provided on the back of the demolding bracket, wherein the controller is connected to the forward and reverse motors by wires, and the connection is an electrical connection.

[0009] As a preferred embodiment of this utility model, rectangular sliding grooves are provided on both the left and right sides of the outer mold box for the screw sleeve to move up and down.

[0010] As a preferred embodiment of this utility model, both ends of the rotating screw are rotatably connected to the inside of the fixed upright through bearing seats.

[0011] As a preferred embodiment of this utility model, both the left and right sides of the support template are connected to one end of the screw sleeve.

[0012] As a preferred embodiment of this utility model, the inner mold side plate has a through-hole groove for the locking screw to pass through.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this utility model, a demolding device for producing precast concrete components is provided, which can demold the precast concrete components without flipping the mold. This reduces the amount of labor required and avoids the problem that the precast concrete components falling to the ground when they fall out of the mold are easily damaged and may cause injury to surrounding workers. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the entire utility model;

[0017] Figure 3 This is a partial structural diagram of the present utility model.

[0018] In the diagram: 1. Demolding bracket; 2. Outer mold box; 3. Support template; 4. Fixed upright; 401. Forward and reverse motor; 402. Rotating screw; 403. Screw sleeve; 5. Inner mold base plate; 501. Hinge assembly; 502. Inner mold side plate; 503. Locking screw; 504. Locking nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0024] A demolding device for producing precast concrete components includes a demolding bracket 1, an outer mold box 2 fixed inside the demolding bracket 1, a supporting template 3 inside the outer mold box 2, fixed uprights 4 on both the left and right sides of the outer mold box 2, a forward and reverse motor 401 installed on the top of the fixed uprights 4, the output end of the forward and reverse motor 401 passing through the interior of the fixed uprights 4 and connected to a rotating screw 402, a screw sleeve 403 threaded onto the outer side of the rotating screw 402, and an inner mold base plate 5 on the top of the supporting template 3.

[0025] The back of the demolding bracket 1 is equipped with a controller, which is connected to the forward and reverse motor 401 by wires and the connection is electrical. The left and right sides of the outer mold box 2 are provided with rectangular sliding grooves for the screw sleeve 403 to move up and down. Both ends of the rotating screw 402 are rotatably connected to the inside of the fixed upright 4 through bearing seats. The left and right sides of the support template 3 are connected to one end of the screw sleeve 403.

[0026] In this embodiment, please refer to Figure 3 The four sides of the top of the inner mold base plate 5 are rotatably connected to the inner mold side plates 502 by multiple sets of evenly distributed hinge assemblies 501. Two sets of adjacent inner mold side plates 502 are connected by locking screws 503, and locking nuts 504 are threaded on the outer side of the locking screws 503.

[0027] The inner mold side plate 502 has a through-hole groove for the locking screw 503 to pass through.

[0028] The working process of this utility model is as follows: First, the four sets of inner mold side plates 502 are rotated and closed on the inner mold base plate 5, and connected by inserting locking screws 503. Then, locking nuts 503 are used to fix them. Then, the entire structure of the inner mold is lowered into the outer mold box 2 to ensure the tightness of the mold during molding. Next, the concrete raw material is fed into the inner mold through the material feeding mechanism, and then dried and solidified. When demolding is required after drying and solidification, the forward and reverse motors 401 are started, which drive the rotating screw 402 to rotate the threaded drive screw sleeve 403 to move upward, thereby causing the support template 3 to move the entire inner mold upward until it is completely away from the outer mold box 2. Then, the four sets of inner mold side plates 502 are opened respectively, and the concrete precast part can be taken out. The concrete precast part can be demolded without flipping the mold, which reduces the workload of personnel and avoids the problem that the precast part is easily damaged when it falls to the ground when it falls out of the mold, which may also cause injury to the surrounding workers.

[0029] 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 demolding device for producing precast concrete components, comprising a demolding support (1), characterized in that: The demolding bracket (1) has an outer mold box (2) fixed inside. The outer mold box (2) has a support template (3) inside. The outer mold box (2) has fixed uprights (4) on both the left and right sides. The top of the fixed uprights (4) is equipped with a forward and reverse motor (401). The output end of the forward and reverse motor (401) passes through the interior of the fixed uprights (4) and is connected to a rotating screw (402). The outer thread of the rotating screw (402) is threaded with a screw sleeve (403). The top of the support template (3) has an inner mold base plate (5). The four sides of the top of the inner mold base plate (5) are rotatably connected to inner mold side plates (502) through multiple sets of evenly distributed hinge assemblies (501). Two sets of adjacent inner mold side plates (502) are connected by locking screws (503). The outer thread of the locking screws (503) is connected with locking nuts (504).

2. The demolding device for producing precast concrete components according to claim 1, characterized in that: The back of the demolding bracket (1) is equipped with a controller, which is connected to the forward and reverse motor (401) by a wire and the connection is electrical.

3. The demolding device for producing precast concrete components according to claim 1, characterized in that: The outer mold box (2) has rectangular grooves on both the left and right sides for the screw sleeve (403) to move up and down.

4. A demolding device for producing precast concrete components according to claim 1, characterized in that: Both ends of the rotating screw (402) are rotatably connected to the inside of the fixed column (4) through bearing seats.

5. A demolding device for producing precast concrete components according to claim 1, characterized in that: The left and right sides of the support template (3) are connected to one end of the screw sleeve (403).

6. A demolding device for producing precast concrete components according to claim 1, characterized in that: The inner mold side plate (502) has a through-hole groove for the locking screw (503) to pass through.