Achieving both cost reduction and quality improvement! Professional support for blow molding "shape optimization" proposals.
"Can this design be made with blow molding?" "I want to somehow reduce the mold costs..." For designers facing these concerns, at Nakakoshi Seisakusho, by consulting with us during the idea stage or before design approval, we can assess the feasibility of blow molding and propose shape optimization (VA/VE) that directly leads to cost reduction! ■ Strengths of our VA/VE proposals - Removal of undercuts: We suggest modifications to the "undercut" areas that hinder release, reducing the need for expensive sliding mechanisms and significantly lowering mold production costs. - Setting draft angles: We appropriately set a "draft angle (around 1 degree)" that promotes smooth release, helping to avoid delays in the molding cycle and risks of defects such as scratches and whitening. - Uniform thickness: We propose adding curvature (R) to extreme deep draws or sharp designs to prevent uneven thickness and punctures. We don't just create according to the drawings; we partner with you to make it "cheaper, lighter, and better." Please consult with us from the early stages of development!
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■Applicable Development Phases Welcome from the early stages of development, such as the idea stage, hand-drawn sketches, and before product design approval! ■Main Shape Optimization (VA/VE) Proposal Contents - Significant reduction in mold costs by removing undercuts for sliding mechanisms - Optimal setting of draft angles (approximately 1 degree) to prevent release defects - Addition of corner radii to prevent uneven thickness and punctures - Proposal for integration of multiple parts (elimination of welding) - Proposal for blow molding from other methods (injection and rotational molding) ■Supported Sizes Capable of handling sizes from small to extra-large over 1,000mm in length.
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■Target Industries: All industries including automotive, construction machinery, agricultural machinery, and daily necessities. It is ideal for designers who are troubled by "high mold costs that cannot get approval!" ■VA/VE Proposals and Problem-Solving Examples: - Significant reduction in mold costs by removing undercuts: A proposal was made to eliminate undercuts while maintaining functionality in complex ducts. This made the expensive sliding mechanism completely unnecessary, resulting in a substantial reduction in mold costs! - Increased productivity by adding draft angles: A proposal was implemented to introduce a slope (draft angle) on the vertical walls of the product. This reduced friction with the mold and achieved smooth release. - Optimization of wall thickness for deep drawing shapes: In response to the issue of bottoms breaking (punching) in extremely deep shapes, a shape modification was proposed to add an R at the bottom, preventing uneven wall thickness.
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Illustrated Explanation! Proposals for "Shape Optimization" that Achieve Both Cost Reduction and Quality Improvement To designers who are worried, "Can this design be made with blow molding?" or "I want to somehow reduce the mold costs..." At Nakajo Manufacturing, we offer shape optimization (VA/VE) that directly leads to cost reduction from a professional perspective by consulting with you at the idea stage or before design approval! As illustrated, our VA/VE proposals have three key points: 1. Removal of Undercuts We propose modifications to the "undercut" areas that hinder mold release, reducing the need for expensive slide mechanisms and significantly lowering mold costs! 2. Optimal Setting of Draft Angles We set a "draft angle (about 1 degree)" that promotes smooth mold release, avoiding delays in the molding cycle and reducing the risk of defects. 3. Addition of Fillets (Rounding) We propose adding rounding to sharp designs, allowing the resin to spread evenly and preventing uneven thickness and bursting! We will partner with you not just to create according to the drawings, but to "make it cheaper, lighter, and better!" Please consult with us from the early stages of development! For more details, visit our service page!
Company information
Your Consultative Partner for 3D Blow Molds—From Concept to Reality Based in Edogawa, Tokyo, Chuetsu Seisakusho Co., Ltd. is here to solve your engineering challenges. Whether you're wondering, "Can this complex hollow shape be made of plastic?" or "How can we replace metal parts with plastic to reduce weight?", we have the answers. 3 Reasons to Choose Chuetsu Seisakusho: 1. Unrivaled 3D Blow Molding Technology From complex automotive air ducts to daily-use bottles, we design and manufacture molds that directly contribute to your product's weight reduction and cost savings. 2. Upstream Proposals to Prevent Defects We don't just build exactly what is on the drawing. We offer professional VA/VE (Value Analysis/Value Engineering) proposals to optimize your product's shape and prevent mass-production issues, such as suggesting design tweaks to avoid wall thinning. 3. Crystal-Clear Explanations Powered by AI Mold engineering can be highly technical, but we make it easy to understand. Utilizing the latest AI tools, we provide visual and intuitive explanations of complex mold structures and molding processes. We welcome your inquiries, even if you only have a rough sketch or an early-stage idea. Let's make it happen together. Contact us today!
