Custom plastic cup for button paper parts Moulding

In addition, our company has established cooperative relationships with plastic raw material suppliers, printing manufacturers, etc. to ensure the supply of raw materials and printing quality. Through our rich experience and perfect supply chain, our company can provide customers with high-quality customized custom plastic cup for button paper parts products to meet their specific needs. At the same time, we have 10 years of professional foreign trade service experience, understand the foreign trade process, and better serve our customers. For custom plastic cup for button paper parts products, we can make corresponding plastic parts, which is mainly done through injection molds.

Phase One: Precise Demand analysis and Design

Clear definition:

Core function: Is it used for packaging/transporting individual buttons, or as an assemblable base/front cover for buttons? Is it necessary to precisely fit with buttons or other components?

Key dimensions: Inner diameter, depth, wall thickness, snap-on or thread size (if closure is required).

Appearance requirements: Generally, high gloss, bright colors and no flaws are required to enhance the product grade.

Key points of DFM design (for cup-shaped structures) :

Demolding slope: As it is in the shape of a "cup" and has a relatively large depth, there must be sufficient demolding slope (usually more than 1.5° for the inner wall and more than 1° for the outer wall), otherwise it will be extremely difficult to demold or the surface may be scratched.

Transition between the bottom and the side walls: The connection between the bottom and the side walls must be transitioned with an arc to avoid stress concentration and filling difficulties.

Uniform wall thickness: Ensure the overall wall thickness is uniform (usually 1.2-2.0mm) to prevent shrinkage. The bottom can be slightly thicker to increase strength, but cooling needs to be strengthened.

Gate position: It is usually set at the center of the cup bottom (point gate) or on the non-surface of the bottom to ensure balanced filling and intact appearance.

Phase Two: Mold Design - Pursuing ultimate efficiency

The core of cost control for such small parts lies in the efficiency of the mold.

One-mold multi-cavity: Adopting an ultra-high cavity number layout (such as 1 out of 32, 1 out of 64 or even more), maximizing single output and reducing the cost per piece.

Hot runner system: Absolutely necessary. The needle valve type hot runner is used to achieve material-free production, save raw materials and realize full automation.

Ejection design: Due to the hollow interior of the cup, the ejection mechanism needs to be carefully designed. Round ejector pins or air-assisted ejector pins are commonly used. The ejector pins are set on the inner wall at the bottom of the cup or at the reinforcing ribs to prevent ejector pins from piercing or whitening.

Exhaust and cooling: Exhaust slots are provided at the edge of the cup mouth and the end of the bottom reinforcing ribs. The cooling water channel must surround the cavity to ensure rapid and uniform cooling.

Phase Three: Injection Molding Process - Balance between Precision and Appearance

Material selection

Transparency/high gloss requirements: Select GPPS or transparent ABS.

High toughness requirement: Select PP or tough ABS.

Anti-static agents must be added to prevent small cups from attracting dust due to friction, which could affect the cleanliness of the packaging.

Core process

High mold temperature: To achieve a high-gloss surface, the mold temperature needs to be relatively high (for example, 60-80℃ for ABS).

High-speed injection: Ensure that the melt can quickly fill the cavity and replicate the luster of the mold surface.

Precise holding pressure: The holding pressure and duration need to be precisely controlled to prevent shrinkage (especially at the thick-walled bottom), while also avoiding excessive holding pressure that could lead to difficult demolding and internal stress.

Phase Four: Post-processing and Quality Inspection

Post-processing

Full automation: The mechanical hand automatically picks up the items and they directly fall into the packaging containers or conveyor belts, reducing manual contact.

Secondary processing (if necessary) : It may be necessary to ultrasonically weld an upper cover to form a sealed package.

** rigorous quality inspection ** :

Dimensional inspection: Use a projector or a dedicated go/stop gauge to inspect key dimensions such as the inner diameter and depth to ensure a good fit with the button.

Full appearance inspection: 100% inspection under LED light source, eliminating products with black spots, impurities, scratches, and color differences.

Functional testing: Sample test the clamping force and lifespan of the snap fasteners (if they are assemblies), or test the stacking stability (if they are packaging containers).

We are a custom plastic cup for button paper parts manufacturer, providing high-quality custom plastic cup for button paper parts manufacturing. As long as you want to customize/develop custom plastic cup for button paper parts products, you can find us. We have professional injection mold design and mature manufacturing technology, providing you with one-stop service, from product design-mold making-product production-product packaging-product transportation, we can help you in every link. As long as you come to us, we will provide you with the ultimate service and satisfy you in terms of product quality, production time, information dialogue, etc.

Plastic Injection Mould making

Plastic molding specifications

Mold design:

Transaction process:

Mold testing:

Product packaging

Factory

We are Custom Plastic Mold factory. Our factory is plastic injection mold maker. we has 17 years of experience in professional custom plastic mold and 10 years of foreign trade experience. We are custom Plastic Mold supplier. We can provide custom Plastic Mold service. Our factory can make the Injection molded plastic parts, and the quality of the products will satisfy you.

We have more than 50 high-end machines and hundreds of engineers and designers. We can provide one-stop service, from product design - mold making - product production - product packaging - transportation. We have a complete production chain. We can meet all your requirements.

Services we provide:

Professional custom mold service, Plastic mold design and manufacturing .plastic product production, product design, mold design, blow mold customization, rotational mold customization, die-casting mold customization. 3D printing services, CNC manufacturing services, product packaging, customized packaging, shipping services.

We always adhere to the principles of quality first and time first. While providing customers with the highest quality products, try to maximize the production efficiency and shorten production time. We are proud to tell every customer that our company has not lost any customer since its establishment.If there is a problem with the product, we will seek a solution actively and take responsibility to the end.

FAQ

Q1: Are you trading company or manufacturer ?

A: We are manufacturers.

Q2. When can I get the quotation?

A: We usually quote within 2 days after we get your inquiry.

If you are very urgent, please call us or tell us in your email so that we can quote for you first.

Q3. How long is the lead-time for mold?

A: It all depends on the products' size and complexity. Normally, the lead time is 25 days.

Q4. I have no 3D drawing, how should I start the new project?

A: You can supply us a molding sample, we will help you finish the 3D drawing design.

Q5. Before shipment, how to make sure the products quality?

A: If you don't come to our factory and also don't have the third party for inspection, we will be as your inspection worker.

We will supply you a video for production process detail include process report, products size structure and surface detail, packing detail and so on.

Q6. What is your payment terms?

A: Mold Payment: 40% deposit by T/T in advance, 30% second mold payment before sending out the first trial samples, 30% mold balance after you agree the final samples.

B:Production Payment: 50% deposit in advance, 50% before sending out the final goods.

Q7: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit for best quality products.

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.