Groove pattern plate type top cover suitable for automatic oil removal of top of mold
By fixing the grooved top cover of the mold to the mold flange and combining it with a robot to grab a special sponge, the problem of automatically cleaning residual liquid on the top of the mold is solved, reducing safety risks and improving production safety and automation.
Patent Information
- Application Number
- CN202422921972.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-28
AI Technical Summary
In the existing technology, the cleaning of residual nitroglycerin mixture on the top of the mold during the manufacturing process of cast modified double-base propellants is characterized by high safety risks, high labor intensity, difficulty in automation, and insufficient safety due to the need for manual operation.
A grooved flower plate-type top cover suitable for the top of a mold was designed. By fixing it to the flange on the top of the mold and combining it with a robot to grasp a special sponge, the residual liquid material can be automatically cleaned, simplifying the cleaning process and avoiding the step of disassembling the top cover.
It enables automated cleaning of residual liquid on the top of the mold, reducing safety risks for operators and improving the safety and automation of the cleaning process.
Smart Images

Figure CN223535008U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of casting propellant technology, specifically relating to a grooved flower plate top cover suitable for automatic oil removal on the top of a mold. Background Technology
[0002] Cast-type modified double-base propellants have significant advantages such as clean combustion gases and high energy levels. They can effectively reduce interference with laser and infrared guidance signals, ensure the stealth performance of missiles and launch platforms, and enhance the precision strike capability, efficient penetration capability, and battlefield survivability of weapons. Furthermore, they can meet the application requirements of various charge sizes and propellant types, making them a primary power source for a series of core tactical combat equipment. Granular casting is one of the core processes in the manufacture of cast-type modified double-base propellants. After the propellant grains have solidified at low temperatures, residual free nitroglycerin mixture on the top of the mold needs to be cleaned. Because nitroglycerin is sensitive to abnormal stimuli such as impact, friction, and severe vibration, it can easily trigger a gunpowder explosion. The danger of operators cleaning the liquid face-to-face is extremely high.
[0003] To address the issues of manual face-to-face operation, high labor intensity, and significant safety risks in the cleaning process of nitroglycerin casting solution for granulation casting molds, research was conducted on automatic oil removal from the top of the granulation casting mold. Key technologies such as automated cleaning of nitroglycerin mixture were developed, forming a human-machine isolated cleaning process for nitroglycerin casting solution in granulation casting molds. This reduces safety risks during the oil removal process and improves the inherent safety level of the production line for cast modified double-base propellants.
[0004] Therefore, it is necessary to provide a perforated plate suitable for automatic oil removal on the top of casting molds to facilitate automated oil removal and further improve the automation and safety of the oil removal process. Utility Model Content
[0005] This utility model is a grooved flower plate type top cover suitable for automatic oil removal on the top of a mold. It makes it easy for a robot to grab a special sponge to directly dip in the internal hazardous materials. It can directly solve the problem of having to remove the top cover to remove oil during the automatic oil removal process, simplifying the oil removal process and improving the safety threshold.
[0006] The objective of this utility model is achieved through the following technical solution:
[0007] This utility model discloses a grooved flower plate type top cover suitable for automatic oil removal on the top of a mold. It is a cylindrical part with one open end and one closed end, which is made of hard aluminum. The outer edge of the open end of the cylindrical part is provided with a connecting flange. The closed end plate of the cylindrical part has evenly distributed liquid material passage holes. The side wall of the cylindrical part has an oil removal notch.
[0008] The grooved flower plate type top cover integrates the original sheet-like flower plate with the top cover. It can be fixed to the top flange of the mold, and at the same time, it allows the robot to directly grab the special sponge without disassembling the top cover and insert it into the mold to clean the residual liquid inside.
[0009] Work process:
[0010] The residual liquid accumulates above the holes in the perforated plate. The robot picks up a special sponge fixture and places it in the central recessed "tea strainer" structure. It presses gently and waits for a certain period of time. The liquid at the top is absorbed by the oil-absorbing sponge. The sponge fixture is then removed and placed in a designated position to complete the cleaning of the residual liquid at the top.
[0011] Beneficial effects:
[0012] This utility model is a grooved flower plate suitable for automatic oil removal on the top of a mold. The central groove-shaped "tea strainer" structure integrates the original sheet-like flower plate with the top cover. It allows liquid to pass through while facilitating the robot to grab a special sponge to directly dip in hazardous materials inside. This simplifies the automatic oil removal process, makes it easier to achieve automatic oil removal, ensures production safety, and is suitable for development and promotion. Attached Figure Description
[0013] Figure 1 This is a structural diagram of the grooved flower plate type top cover of this utility model. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Example
[0016] like Figure 1 As shown, this utility model discloses a grooved top cover suitable for automatic oil removal on the top of a mold. It is a cylindrical component with one open end and one closed end, made of 6061 hard aluminum. The outer diameter of the cylindrical component is 160mm and the inner diameter is 144mm. A connecting flange with an outer diameter of 215mm is provided at the outer edge of the open end of the cylindrical component. The closed end plate of the cylindrical component has evenly distributed liquid material passage holes with a diameter of 3mm and a hole spacing of 4.5mm, totaling 654 holes, which facilitates the passage of internal liquid material. The side wall of the cylindrical component has an oil removal notch.
[0017] The grooved flower plate type top cover integrates the original sheet-like flower plate with the top cover. It can be fixed to the top flange of the mold, and at the same time, it allows the robot to directly grab the special sponge without disassembling the top cover and insert it into the mold to clean the residual liquid inside.
[0018] Holes with a diameter of 3mm and a spacing of 4.5mm are made on the bottom plate, totaling 654 holes, to facilitate the passage of internal liquid material. All sharp corners are rounded and burrs are removed.
[0019] Work process:
[0020] The residual liquid accumulates above the holes in the perforated plate. The robot picks up a special sponge fixture and places it in the central recessed "tea strainer" structure. It presses gently and waits for a certain period of time. The liquid at the top is absorbed by the oil-absorbing sponge. The sponge fixture is then removed and placed in a designated position to complete the cleaning of the residual liquid at the top.
Claims
1. A grooved flower-plate type top cover suitable for automatic oil removal on the top of a mold, characterized in that, The grooved flower plate top cover is a cylindrical part made of hard aluminum, with one end open and the other end closed. The outer edge of the open end of the cylindrical part is provided with a connecting flange, the closed end plate of the cylindrical part has evenly distributed liquid passage holes, and the side wall of the cylindrical part has a clear oil notch.