Baby walker injection 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 baby walker injection moulding 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 baby walker injection moulding products, we can make corresponding plastic parts, which is mainly done through injection molds.

The injection molding process for baby walkers.

Most of the main components of baby walkers (such as the body frame, seat shell, wheels, and trim) are manufactured using injection molding. This is an efficient, precise plastic processing method suitable for mass production.

The entire process can be divided into three main stages: pre-molding preparation, the injection molding process, and post-molding processing.

Stage 1: Pre-molding Preparation

Product Design and Mold Development:

This is the most critical first step. Engineers use CAD software to design 3D models of the baby walker's components.

Mold designers design a precise and complex injection mold based on the product model. The mold typically consists of a movable mold and a fixed mold, with a cavity that conforms to the product's shape, a gating system, an ejection system, and a cooling system.

Molds are mostly made of high-grade steel, requiring extremely high precision and cost.

Plastic Raw Material Preparation:

Material Selection: Baby walkers have very strict material requirements. Non-toxic, odorless, high-strength, and high-toughness food-grade or medical-grade plastics must be used. The most common ones include:

ABS: High strength, good toughness, and easy to dye, commonly used in vehicle body structures.

PP: Non-toxic, chemically resistant, and lightweight, commonly used in seats, trays, and other applications.

PC: High transparency and excellent strength and toughness, suitable for transparent windows or high-strength components.

Pretreatment: Before being fed into the injection molding machine, plastic pellets (resin) are typically dried in an oven to remove moisture and prevent defects such as bubbles and silver streaks during molding. Masterbatch is also added as needed for color matching.

Phase Two: Injection Molding

This is a repetitive, automated process, each cycle consisting of the following steps:

Clamping and Locking:

The injection molding machine's clamping system drives the movable mold forward, tightly closing it against the fixed mold and applying a massive clamping force (tens to hundreds of tons) to prevent the mold from being forced open by high pressure during injection.

Injection and Holding Pressure:

Plasticization: Plastic pellets from the hopper fall into the barrel, where they are heated by the heater coils and melted into a viscous, fluid melt by the rotating shear of the screw.

Injection: The screw stops rotating and, like a plunger, rapidly advances, injecting a predetermined amount of plastic melt through the nozzle and the mold's gating system into the closed mold cavity.

Holding Pressure: After injection is complete, the screw maintains a certain pressure (holding pressure) to continuously replenish plastic into the mold cavity to compensate for any material shortfalls caused by cooling shrinkage and prevent shrinkage and sagging.

Cooling and Shaping:

The melt gradually cools and solidifies under the influence of cooling water (or oil) circulating within the mold cavity, forming the desired product shape. Cooling time accounts for more than half of the entire molding cycle and directly impacts production efficiency.

Mold Opening and Ejection:

After cooling is complete, the clamping mechanism releases, the movable mold retracts, and the mold opens.

The ejector plate in the mold, pushed forward by the injection molding machine's ejector pin, ejects the molded part from the mold cavity.

Part Removal:

A robot or automated device removes the ejected part and places it in a designated area. This concludes one molding cycle, and the next one immediately begins.

Stage 3: Post-Molding Processing

Parts fresh from the mold (called "injection molded parts" or "sprue material") cannot be used directly and require further processing.

Sprue Processing:

The sprue, formed by the condensation of the gating system, needs to be separated from the product. This can be done by manual trimming, shearing with a jig, or automated robotics. The trimmed sprue is typically crushed and recycled, then mixed into new material at a certain ratio for reuse to reduce costs.

Inspection and Finishing:

Quality Inspection: The product is inspected for defects such as missing material, flash, shrinkage, bubbles, and color unevenness.

Deburring: Burrs created by trimming the sprue and parting lines are removed to prevent scratches on the baby.

Surface Treatment: Some parts may require secondary processing such as painting, printing (such as cartoon designs), and electroplating to enhance their appearance and add value.

Assembly:

Injection-molded components (frame, seat, wheels, etc.) are sent to the assembly line along with other purchased parts (such as screws, fabric covers, and electronic music components) to form a complete baby walker.

Finally, the baby walker undergoes final testing and packaging before being shipped.

We are a baby walker injection moulding manufacturer, providing high-quality baby walker injection moulding manufacturing. As long as you want to customize/develop baby walker injection moulding 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.