Rapid demolding device for lower side transverse pipe mold

By installing a protective cover and cleaning brush on the top of the electric demolding device, combined with a cooling fan to clean dust, the problem of ejector pin wear was solved, ensuring the stability and convenient maintenance of the rapid demolding device.

CN223934240UActive Publication Date: 2026-02-24ANHUI CHUANGZHIFENG MASCH MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520457245.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-02-24
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

When the ejector pin extends and retracts to push the lower horizontal tube in the mold, dust on the surface of the lower horizontal tube will adhere to the ejector pin, causing wear and loosening of the connection between the ejector pin and the quick demolding device, affecting stability.

Method used

A quick demolding device for a lower horizontal tube mold, including a protective cover at the top of an electric demolding device, a cleaning brush and a cooling fan installed on the inside, is designed. The cleaning brush removes dust, the cooling fan blows away the dust to prevent wear, and the combination of a limit plate and a threaded rod facilitates equipment maintenance.

Benefits of technology

This effectively avoids wear at the connection between the ejector rod and the electric demolding device, ensuring the stability of the device and simplifying the maintenance and upkeep process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223934240U_ABST
    Figure CN223934240U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of quick demoulding devices, and particularly relates to a quick demoulding device for a lower side transverse pipe mould, which comprises an electric demoulding device and an ejector rod assembled at the top end of the electric demoulding device, a mounting plate at the top end of the electric demoulding device is connected with a protective cover, and a cleaning brush is mounted on the inner side wall of the protective cover. The bottom end of the outer side wall of the protective cover is connected with a mounting lug, the top end of the mounting lug is connected with a bolt, and the bottom of a mounting plate at the top end of the electric demolding device is connected with a fixing block. And meanwhile, the cooling fan is matched to clean the top end of the electric demolding device, so that the joint of the electric demolding device and the ejector rod is effectively prevented from being abraded, and the stability of the quick demolding device is ensured. In addition, the side plates can be easily disassembled and assembled through cooperation of the limiting plates and the threaded rods, then the internal structure of the electric demolding device can be conveniently exposed, and maintenance of equipment is greatly facilitated.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of rapid demolding devices, specifically relating to a rapid demolding device for a lower horizontal tube mold. Background Technology

[0002] A rapid demolding device (also known as an electric demolding device) is an important piece of equipment used to improve production efficiency and reduce product scrap rates. It is widely used in the manufacturing industries of plastics, rubber, fiberglass and various metal castings and forgings.

[0003] During the use of the quick demolding device, the lower horizontal tube mold must first be connected, and then the device is used to eject the lower horizontal tube from the mold. However, a problem exists: when the ejector rod extends and retracts to push the lower horizontal tube in the mold, dust on the surface of the lower horizontal tube adheres to the ejector rod. This dust adhesion causes wear at the connection between the ejector rod and the quick demolding device during the extension and retraction process, resulting in loosening of the connection, causing the ejector rod to wobble, and affecting the stability of the quick demolding device. Utility Model Content

[0004] The purpose of this invention is to provide a quick demolding device for a lower horizontal tube mold, aiming to solve the problem in the prior art where, during the use of the aforementioned equipment, dust adheres to the surface of the lower horizontal tube when the ejector rod extends and retracts to push the lower horizontal tube in the mold. This dust adhesion causes wear at the connection between the ejector rod and the quick demolding device during the extension and retraction process, resulting in loosening of the connection, causing the ejector rod to shake, and affecting the stability of the quick demolding device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick demolding device for a lower horizontal tube mold, comprising an electric demolding device and a push rod mounted on the top of the electric demolding device, a protective cover connected to the mounting plate at the top of the electric demolding device, a cleaning brush installed on the inner side wall of the protective cover, a mounting ear connected to the bottom of the outer side wall of the protective cover, a bolt connected to the top of the mounting ear, a fixing block connected to the bottom of the top mounting plate of the electric demolding device, and a cooling fan installed on the inner side wall of the fixing block.

[0006] As a preferred embodiment of the quick demolding device for the lower horizontal tube mold of this utility model, the protective cover is detachably and fixedly connected to the mounting plate at the top of the electric demolding device through mounting ears and bolts.

[0007] As a preferred embodiment of the quick demolding device for the lower horizontal tube mold of this utility model, the cleaning brush is made of nylon and is surrounded and connected to the outside of the top rod.

[0008] In a preferred embodiment of the quick demolding device for the lower horizontal tube mold of this utility model, the bottom end of the cooling fan is in contact with the top end of the electric demolding device.

[0009] As a preferred embodiment of the quick demolding device for the lower horizontal tube mold of this utility model, the side wall of the electric demolding device is connected to a side plate, a connecting block is installed on the side wall of the electric demolding device, a threaded rod is threadedly connected to the surface of the connecting block, and a limit plate is provided on the side wall of the electric demolding device.

[0010] In a preferred embodiment of the quick demolding device for a lower horizontal tube mold of this utility model, the limiting plate is connected to the threaded rod, and the end of the threaded rod is connected to a protrusion. The threaded rod and the limiting plate are rotatably connected through the protrusion.

[0011] In a preferred embodiment of the quick demolding device for a lower horizontal tube mold of this utility model, the inner wall of the limiting plate is fitted with the outer wall of the side plate, and the limiting plate is connected to the connecting block by a threaded rod to form a threaded lifting connection.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention features a cleaning brush for easy removal of dust from the ejector rod surface, while a cooling fan cleans the top of the electric demolding device. This effectively prevents wear at the connection between the electric demolding device and the ejector rod, ensuring the stability of the rapid demolding device. Furthermore, the side plates, through the cooperation of limiting plates and threaded rods, allow for easy disassembly and assembly, facilitating exposure of the internal structure of the electric demolding device and greatly simplifying maintenance and upkeep. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the main body structure of this utility model from a bottom view;

[0017] Figure 3 This is a schematic cross-sectional view of the protective cover of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the threaded rod and the limiting plate of this utility model.

[0019] In the diagram: 1. Electric demolding device; 2. Ejector rod; 3. Protective cover; 4. Mounting ear; 5. Bolt; 6. Fixing block; 7. Cooling fan; 8. Cleaning brush; 9. Side plate; 10. Limiting plate; 11. Connecting block; 12. Threaded rod; 13. Protrusion. Detailed Implementation

[0020] 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. Example

[0021] Please see Figure 1-4 This utility model provides the following technical solution: a quick demolding device for a lower horizontal tube mold, including an electric demolding device 1 and a push rod 2 mounted on the top of the electric demolding device 1. A protective cover 3 is connected to the mounting plate at the top of the electric demolding device 1. A cleaning brush 8 is installed on the inner side wall of the protective cover 3, and the cleaning brush 8 is fixedly connected to the protective cover 3. A mounting ear 4 is connected to the bottom of the outer side wall of the protective cover 3, and a bolt 5 is connected to the top of the mounting ear 4. A fixing block 6 is connected to the bottom of the top mounting plate of the electric demolding device 1, and a cooling fan 7 is installed on the inner side wall of the fixing block 6.

[0022] In a preferred embodiment: the protective cover 3 is detachably and fixedly connected to the mounting plate at the top of the electric demolding device 1 by means of mounting ears 4 and bolts 5.

[0023] In a preferred embodiment: the cleaning brush 8 is made of nylon and is attached to the outside of the top rod 2.

[0024] In a preferred embodiment, the bottom end of the cooling fan 7 is attached to the top end of the electric demolding device 1.

[0025] In this embodiment, the electric demolding device 1 is a mature existing technology, specifically the LD141 model. The electric demolding device 1 is connected to the top outlet of the lower horizontal tube mold. The ejector rod 2 extends and retracts via the electric demolding device 1, and its extension and retraction speed is adjusted according to actual conditions, thereby pushing out the lower horizontal tube from the mold. Simultaneously, the protective cover 3 is connected to the mounting plate at the top of the electric demolding device 1 via bolts 5 passing through the mounting ears 4. During this process, the protective cover 3 is fixed and then passes through the ejector rod 2, surrounding it. As the ejector rod 2 extends and retracts, the cleaning brush 8 inside the protective cover 3 removes dust adhering to the surface of the ejector rod 2. The cleaning brush 8 completely surrounds the surface of the ejector rod 2. Subsequently, the dust falls to the top of the electric demolding device 1, and during this process, the dust falls from the mounting plate at the top of the electric demolding device 1 to the top of the electric demolding device 1. The cooling fan 7 is manually connected to the power supply and started. The wind generated by the cooling fan 7 blows away the dust, preventing dust from entering the connection between the electric demolding device 1 and the ejector rod 2 and causing subsequent wear, thus ensuring the stability of the rapid demolding device.

[0026] It is worth noting that the cleaning brush 8 is made of nylon, which has a certain degree of wear resistance and hardness. The bristles are adapted to fit the top rod 2 to form a close fit. This design ensures that the cleaning brush 8 and the top rod 2 make full contact to effectively clean dust, while also ensuring that the surface of the top rod 2 is not damaged during the extension and retraction of the top rod 2.

[0027] The cooling fan 7 is fixed to the inner wall of the fixing block 6 by screws. The fixing block 6 is also assembled to the bottom side of the mounting plate at the top of the electric demolding device 1 by screws. In order to prevent dust from entering when the cooling fan 7 is not working, a dustproof net is installed at the front end of the cooling fan 7 to allow dust to enter the cooling fan 7. It is not shown in the figure.

[0028] To further explain: When the ejector rod 2 extends and retracts under the drive of the electric demolding device 1, the cleaning brush 8, because it surrounds the ejector rod 2, is in close contact with the surface of the ejector rod 2. The nylon bristles of the cleaning brush 8 have a certain degree of elasticity. During the extension of the ejector rod 2, the bristles bend in the direction of the ejector rod 2's movement, scraping off the dust adhering to the surface of the ejector rod 2; when the ejector rod 2 retracts, the bristles act in the opposite direction, further cleaning the remaining dust. This does not hinder the normal extension and retraction of the ejector rod 2, and also avoids damage to the ejector rod 2 by the cleaning brush 8. The protective cover 3 is made of metal, and a sealing cover connects the bolt 5 and the mounting ear 4 to prevent dust from adhering between the bolt 5 and the mounting ear 4. Example

[0029] Please see Figure 1-4 The side wall of the electric demolding device 1 is connected to a side plate 9, and a connecting block 11 is installed on the side wall of the electric demolding device 1. A threaded rod 12 is threaded through the surface of the connecting block 11, and a limit plate 10 is provided on the side wall of the electric demolding device 1.

[0030] In a preferred embodiment: the limiting plate 10 is connected to the threaded rod 12, and the end of the threaded rod 12 is connected to a protrusion 13. The threaded rod 12 and the limiting plate 10 are rotatably connected through the protrusion 13.

[0031] In a preferred embodiment: the inner wall of the limiting plate 10 is fitted with the outer wall of the side plate 9, and the limiting plate 10 forms a threaded lifting connection with the connecting block 11 through the threaded rod 12.

[0032] In this embodiment, the threaded rod 12 is manually rotated to lower the limiting plate 10, which is then removed from the outer wall of the side plate 9, allowing the side plate 9 to be taken out. This design makes the side plate 9 easy to assemble and disassemble, thereby facilitating the exposure of the internal structure of the electric demolding device 1 and greatly simplifying the maintenance and upkeep of the equipment.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick demolding device for a lower horizontal tube mold, comprising an electric demolding device (1) and a push rod (2) mounted on the top of the electric demolding device (1), characterized in that: The electric demolding device (1) has a protective cover (3) connected to the mounting plate at the top, and a cleaning brush (8) is installed on the inner side wall of the protective cover (3). The bottom of the outer wall of the protective cover (3) is connected to a mounting ear (4), the top of the mounting ear (4) is connected to a bolt (5), the bottom of the top mounting plate of the electric demolding device (1) is connected to a fixing block (6), and the inner side wall of the fixing block (6) is equipped with a cooling fan (7).

2. The quick demolding device for a lower horizontal tube mold according to claim 1, characterized in that: The protective cover (3) is detachably and fixedly connected to the mounting plate at the top of the electric demolding device (1) by means of mounting ears (4) and bolts (5).

3. The quick demolding device for a lower horizontal tube mold according to claim 1, characterized in that: The cleaning brush (8) is made of nylon and is attached to the outside of the top rod (2).

4. The quick demolding device for a lower horizontal tube mold according to claim 1, characterized in that: The bottom end of the cooling fan (7) is attached to the top end of the electric demolding device (1).

5. The quick demolding device for a lower horizontal tube mold according to claim 1, characterized in that: The electric demolding device (1) has a side plate (9) connected to its side wall, a connecting block (11) installed on its side wall, a threaded rod (12) connected to the surface of the connecting block (11) through a thread, and a limit plate (10) provided on the side wall of the electric demolding device (1).

6. A quick demolding device for a lower horizontal tube mold according to claim 5, characterized in that: The limiting plate (10) is connected to the threaded rod (12), and the end of the threaded rod (12) is connected to a protrusion (13). The threaded rod (12) is rotatably connected to the limiting plate (10) through the protrusion (13).

7. A quick demolding device for a lower horizontal tube mold according to claim 5, characterized in that: The inner wall of the limiting plate (10) is attached to the outer wall of the side plate (9), and the limiting plate (10) forms a threaded lifting connection with the connecting block (11) through the threaded rod (12).