Structure facilitating cement demolding

By using magnets and square steel channel structures to assist in cement demolding, combined with a chamfered design, the problems of low demolding efficiency and poor adaptability of traditional cement demolding are solved, achieving a high-efficiency and low-damage demolding effect.

CN224170065UActive Publication Date: 2026-04-28SHAANXI BAILITENG PREFABRICATED CONSTRUCTION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI BAILITENG PREFABRICATED CONSTRUCTION CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional cement demolding technology relies on mechanical force or lubricants, which can easily lead to mold deformation or contamination, and it is difficult to adapt to molds of different sizes and shapes, resulting in low demolding efficiency.

Method used

It adopts a magnet and square steel channel structure, using magnetic attraction to assist demolding, and the chamfer design reduces friction and adhesion, and is suitable for a variety of mold sizes.

Benefits of technology

It improves demolding efficiency, reduces the risk of friction damage, lowers maintenance costs, and is highly adaptable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a structure convenient for cement demoulding, including demoulding structure body, magnet, square steel tank and chamfer, the magnet is embedded in the top of demoulding structure body, the square steel tank is embedded in the bottom of demoulding structure body, magnet and square steel tank outer wall magnetic adsorption, the chamfer is embedded in the bottom of demoulding structure body. The two chamfers are arranged on the two sides of the demolding structure body and fixedly connected with the magnet and the square steel groove correspondingly. By arranging the magnets and the square steel grooves, the magnetic attraction force of the magnets is uniformly distributed, and local stress concentration is avoided; the contact area of cement and the mold can be reduced by arranging the chamfers, and the adhesion risk of the cement and the mold is reduced; and the magnets, the square steel grooves and the chamfers are in modular design, so that the device can adapt to various die sizes, and the maintenance cost is low.
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Description

Technical Field

[0001] This utility model belongs to the field of cement product molding technology, and specifically relates to a structure that facilitates cement demolding. Background Technology

[0002] Traditional cement demolding techniques primarily rely on mechanical force (such as hammering or pushing) or the application of lubricants to the inner wall of the mold to reduce friction. However, mechanical force can easily lead to mold deformation or damage to the surface of the cement product, while lubricants pose a risk of contamination and require frequent maintenance. Issues requiring improvement include low demolding efficiency, reliance on manual operation, high friction between the mold and the cement product, which can easily cause damage, and existing auxiliary structures being difficult to adapt to molds of different sizes and shapes.

[0003] Existing patent CN116945332A discloses a cement demolding and shaping component, relating to the field of cement demolding technology. It includes a main body with a spring at its bottom and a base plate connected below the spring. A vibration motor is installed in the center of the inner bottom surface of the main body. Shaping mechanisms are located on the outside and right side of the main body. A heating mechanism is fixedly installed on the left side of the base plate. A lifting mechanism is located on the left side of the main body. The motor drives a threaded rod to rotate, causing a threaded sleeve to bring the mold closer together until they are tightly fitted. Cement is then poured in, and the vibration motor is activated to vibrate and expel air bubbles. An adjusting plate is then rotated to bring the heating plate closer to the cement, accelerating the cement's setting and shaping. After the cement has set, vibration separates the cement from the components, and the threaded rod is rotated in the opposite direction to separate the mold. Simultaneously, a cylinder extends a telescopic rod to lift a lifting plate with a silicone layer, thus separating the finished cement product from the silicone platform. This solution uses a vibration motor to assist demolding, but its structure is complex and cannot meet the uniform force requirements of large-sized molds.

[0004] Therefore, this utility model provides a structure that facilitates cement demolding to partially solve the problems mentioned in the background art. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a structure that facilitates cement demolding, using magnetic attraction to assist the square steel channel in detaching from the cement product, reducing friction damage, and improving demolding efficiency and adaptability.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0007] A structure for facilitating cement demolding includes a demolding structure body, a magnet, a square steel channel, and chamfers. The magnet is embedded in the top of the demolding structure body, and the square steel channel is embedded in the bottom of the demolding structure body. The magnet is magnetically attracted to the outer wall of the square steel channel. Two chamfers are located on both sides of the demolding structure body, and the chamfers are fixedly connected to the magnet and the square steel channel, respectively.

[0008] Further specifying, the magnet is a neodymium iron boron permanent magnet, and multiple magnets and the demolding structure body are provided, with the multiple magnets arranged in a rectangular array within the demolding structure body.

[0009] Furthermore, the square steel channel is provided with longitudinal reinforcing ribs on its outer side, and the thickness of the reinforcing ribs is 2-5mm. This structural design can improve the resistance to deformation.

[0010] Further specified, the chamfer angle is 30-45° and the width is 10-12mm.

[0011] Furthermore, the demolding structure body and the square steel channel are connected by a snap-fit ​​interface, and a rubber sealing ring is provided at the interface.

[0012] Further specifying, a magnetic shielding layer is provided between the magnet and the demolding structure body, and the magnetic shielding layer is an aluminum plate, a nylon plate or a plastic pad.

[0013] Furthermore, the outer wall of the demolding structure body is provided with heat dissipation fins.

[0014] Furthermore, the chamfer is made of nylon plastic. This structural design can be used to reduce friction.

[0015] Technical solution

[0016] The beneficial effects of this utility model are:

[0017] 1. By setting up magnets and square steel channels, the magnetic attraction force of the magnets is evenly distributed, avoiding local stress concentration;

[0018] 2. By setting chamfers, the contact area between cement and mold can be reduced, thus lowering the risk of cement and mold sticking together;

[0019] 3. The magnets, square steel channels, and chamfers are all modularly designed, which can be adapted to various mold sizes and have low maintenance costs. Attached Figure Description

[0020] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0021] Figure 1 This is a cross-sectional view of an embodiment of the present invention that facilitates cement demolding;

[0022] Figure 2This is a side view of an embodiment of the structure of this utility model that facilitates cement demolding;

[0023] Figure 3 This is a top view of an embodiment of the present invention that facilitates cement demolding.

[0024] The symbols of the main components are explained as follows: demolding structure body 10, magnet 101, square steel channel 102, chamfer 103. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] 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.

[0028] like Figure 1As shown, the present invention provides a structure for facilitating cement demolding, comprising a demolding structure body 10, a magnet 101, a square steel channel 102, and chamfers 103. The magnet 101 is embedded in the top of the demolding structure body 10, and the square steel channel 102 is embedded in the bottom of the demolding structure body 10. The magnet 101 is magnetically attracted to the outer wall of the square steel channel 102. Two chamfers 103 are disposed on both sides of the demolding structure body 10, and the chamfers 103 are fixedly connected to the magnet 101 and the square steel channel 102 respectively.

[0029] In the practical application of this embodiment, the magnet 101 is a neodymium iron boron permanent magnet, and multiple magnets 101 and demolding structure body 10 are provided, with multiple magnets 101 arranged in a rectangular array within the demolding structure body 10.

[0030] In the practical application of this embodiment, the outer side of the square steel channel 102 is provided with longitudinal reinforcing ribs, the thickness of which is 2-5mm. This structural design can improve the resistance to deformation.

[0031] In the practical application of this embodiment, the chamfer 103 has an inclination angle of 30-45° and a width of 10-12mm.

[0032] In the practical application of this embodiment, the demolding structure body 10 and the square steel channel 102 are connected by a snap-fit ​​interface, and a rubber sealing ring is provided at the interface.

[0033] In the practical application of this embodiment, a magnetic shielding layer is provided between the magnet 101 and the demolding structure body 10. The magnetic shielding layer is an aluminum plate, a nylon plate, or a plastic pad.

[0034] In the practical application of this embodiment, the outer wall of the demolding structure body 10 is provided with heat dissipation fins.

[0035] In the practical application of this embodiment, the chamfer 103 is made of nylon plastic. This structural design can be used to reduce friction.

[0036] The specific implementation process is as follows:

[0037] 1. Mold assembly stage

[0038] The square steel channel 102 is connected to the demolding structure body 10 via a snap-fit ​​interface. The magnetic attraction generated by the array of magnets 101 tightly adheres the outer wall of the square steel channel 102 to the inner wall of the demolding structure body 10, ensuring the stability of the square steel channel 102 during cement pouring. The nylon plastic chamfer 103 at the edge of the inner wall of the square steel channel 102 forms a 30°-45° inclined surface, which is adaptively adjusted during assembly to reduce the contact area between the cement and the mold.

[0039] 2. Cement pouring and curing stage

[0040] Cement slurry is injected into the square steel channel 102. The inclined design of the chamfer 103 causes the cement edge to shrink slightly naturally, avoiding right-angle adhesion. The longitudinal reinforcing ribs on the outside of the square steel channel 102 resist the expansion stress during the cement curing process and prevent the square steel channel 102 from deforming.

[0041] 3. Demolding trigger stage

[0042] After the operator removes the magnet and the magnetic attraction is released, the operator gently pushes the square steel channel 102. The inclined surface of the chamfer 103 guides the edge of the cement product to gradually separate from the inner wall of the mold. The nylon material of the chamfer 103 further reduces the coefficient of sliding friction.

[0043] 4. Separation of square steel trough and removal of products

[0044] The square steel channel 102 separates from the demolding structure body 10, and the magnet 101 is completely demagnetized to avoid interference from residual magnetic force. The longitudinal ribs serve as force fulcrums during demolding, and together with external force, ensure that the square steel channel 102 moves horizontally and detaches from the cement product as a whole, avoiding local stress damage. The aluminum alloy heat dissipation fins on the outer wall of the demolding structure body 10 quickly dissipate the heat generated by the magnet 101 through air convection, ensuring the stability of the magnet's performance.

[0045] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A structure that facilitates cement demolding, characterized in that: The device includes a demolding structure body (10), a magnet (101), a square steel channel (102), and chamfers (103). The magnet (101) is embedded in the top of the demolding structure body (10), and the square steel channel (102) is embedded in the bottom of the demolding structure body (10). The magnet (101) is magnetically attracted to the outer wall of the square steel channel (102). The two chamfers (103) are located on both sides of the demolding structure body (10), and the chamfers (103) are fixedly connected to the magnet (101) and the square steel channel (102) respectively.

2. The structure for easy cement demolding according to claim 1, characterized in that: The magnet (101) is a neodymium iron boron permanent magnet. Multiple magnets (101) and demolding structure body (10) are provided. Multiple magnets (101) are arranged in a rectangular array within the demolding structure body (10).

3. The structure for easy cement demolding according to claim 1, characterized in that: The square steel channel (102) is provided with longitudinal reinforcing ribs on the outside, and the thickness of the reinforcing ribs is 2-5mm.

4. The structure for easy cement demolding according to claim 1, characterized in that: The chamfer (103) has an inclination angle of 30-45° and a width of 10-12mm.

5. The structure for easy cement demolding according to claim 1, characterized in that: The demolding structure body (10) and the square steel channel (102) are connected by a snap-fit ​​interface, and a rubber sealing ring is provided at the interface.

6. The structure for facilitating cement demolding according to claim 1, characterized in that: A magnetic shielding layer is provided between the magnet (101) and the demolding structure body (10), and the magnetic shielding layer is an aluminum plate, a nylon plate or a plastic pad.

7. The structure for easy cement demolding according to claim 1, characterized in that: The outer wall of the demolding structure body (10) is provided with heat dissipation fins.

8. The structure for easy cement demolding according to claim 1, characterized in that: The chamfer (103) is made of nylon plastic.