Introduction to Lid Molds
Mould Specification:
| THE MATERIAL OF THE MOLD |
| Mould cavity |
S136 from Sweden ASSAB with HRC 50-52 |
| Mould core |
S136 from Sweden ASSAB with or M310 from Austria with HRC 52-55 |
| Mould core sleeve |
DC11 from Japan or W302 from Austria with 60-62HRC |
| Core Central Ejector |
Beryllium Copper + Chroming treatment with HRC 62-64 HRC |
| Ejector way |
Ejector plate+ Ejector sleeve |
| Mould Manifold plate |
H13 from America for hot runner mold. |
| Mould other plate |
P20 |
| Hot runner system |
YUDO Hot runner ,TZM nozzle |
| Free spare parts of mould |
Core set : 1set/ cavity: 1 Piece/ hot runner system:1set/PID controller system: 1Set/ other easy broken spare parts for each 8 cavities cap mould. |
| Gurantee of the mould |
1 year or 1 million shot times(in this period, if the mold have problem, we will offer the parts or service by free, but not include the problems cased by wrong operation) |
| The life of the mould |
5-6 years, Even in 10 years in good maintenance |
| Installation & Commission |
Our technician can be the buyer's factory to install and run the mould. But the buyer should bear all the cost for the technician's trip(include the air ticket, the cost of the accommodation and the salary) |
| Remark: Our mould different part will used different material. All the material was important and special for making cap mould. The mould material choice can make sure the mould action and mould running life |
1. Definition and Function
Lid molds are specialized tools used in the manufacturing process to produce lids for various containers, such as bottles, jars, and boxes. These molds play a crucial role in ensuring the proper fit, functionality, and aesthetics of the lids. They are designed to shape molten materials, typically plastics, into the desired lid form with high precision.
2. Types of Lid Molds
2.1 Injection Molds
Injection molds are widely used for mass - producing plastic lids. They consist of two main parts: the stationary mold half (the cavity) and the moving mold half (the core). When the mold is closed, molten plastic is injected into the cavity under high pressure. Once the plastic cools and solidifies, the mold opens, and the lid is ejected. Injection molds can produce lids with complex geometries, including threaded lids for bottles, snap - on lids for jars, and flip - top lids.
2.2 Compression Molds
Compression molds are suitable for manufacturing lids from materials like rubber or certain types of plastics. In this process, pre - formed material is placed in the mold cavity, and the mold is then closed. Pressure is applied, causing the material to flow and take the shape of the mold. Compression - molded lids are often used in applications where a high - quality surface finish and good dimensional stability are required, such as in some high - end packaging products.
3. Manufacturing Process of Lid Molds
3.1 Machining
The mold components are first machined from the selected raw material. Precision machining techniques such as milling, turning, and drilling are used to create the cavity, core, and other features of the mold. CNC (Computer Numerical Control) machining ensures high accuracy and repeatability in the manufacturing process.
3.2 Heat Treatment
After machining, the mold components may undergo heat treatment to improve their mechanical properties. Hardening and tempering processes are commonly used to increase the hardness and toughness of the steel molds, making them more resistant to wear and deformation during the molding process.
3.3 Surface Finishing
Surface finishing is an important step in lid mold manufacturing. The mold surfaces are polished to a high - quality finish to ensure that the lids produced have a smooth surface. Electroplating or other surface coating methods may also be applied to enhance the mold's release properties and corrosion resistance.
4. Maintenance and Troubleshooting
4.1 Regular Maintenance
Regular maintenance of lid molds is crucial to ensure their long - term performance. This includes cleaning the mold after each production cycle to remove any residual plastic or contaminants. Lubrication of moving parts, such as ejector pins and guide rails, is also necessary to prevent wear and ensure smooth operation. Periodic inspection of the mold for signs of damage, such as cracks or wear, is carried out, and any necessary repairs are made promptly.
4.2 Troubleshooting
Common issues in lid molds include flashing (excess material around the edges of the lid), sink marks (depressions on the surface of the lid), and poor dimensional accuracy. Flashing may be caused by excessive injection pressure or a misaligned mold. Sink marks can result from insufficient cooling or improper gating design. To address these issues, adjustments to the molding process parameters, such as pressure, temperature, and cooling time, may be made. In some cases, mold repair or modification may be required.
ADVANTAGE
1) Saving 10%-30% cost than others.
2) Direct factory price
3) Life:3, 000, 000 time
4) 2D and 3D provided
5) Quick T1 time: 25-40 days
6) More than 15 years experience
| 1 |
Sample or 2D,3D drawing from customer |
| 2 |
Bulid 2D,3D drawing |
| 3 |
CAD mould design |
| 4 |
Send drawing to customer to confirm |
| 5 |
Parts inspection/CNC machining/EDN machining |
| 6 |
Mould assembly |
| 7 |
Mould test |
| 8 |
Send sample to confiom |
| 9 |
Dilver the mould |
spare parts follow machine and working CNC MACHINE
SHIPPING LINE FROM FACTORY NINGBO TO OVERSEA
FAQ
Q1: Are you a factory or trading company?
A: We are a factory .
Q2: Where is your factory located?
A: Our factory,near Shanghai, located in Ningbo,China
Q3: what is your trade term?
A: normally FOB NINGBO, if customer country requires, also can accept L/C at sight.
Q4: what is your payment term?
A:50% down payment against order confirmation, 50% balance payment prior shipment.
Q5: Have blow machine 100% assemnled well in stock?
A: No. All blow machine will be assembly produced according to your order.
Q6: what is your delivery time?
A: usually in 60days, depends on your projects.
Q7: what about installing in customer factory?
A: after machine arrived at your factory, please prepare water, electric,air and preform, then we will arrange engineer to install machine and train your workers, the longest time to free install shall be in one week, you should afford engineer air tickets, food, hotel,transport.
Q8:guarantee time?
A: one guarantee, not man-made.
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