Rivestimento personalizzato in silicone per bottiglie di vetro | Progetto Regno Unito 2021
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Prodotto |
Cylindrical Silicone Glass Bottle Sleeve with Cutout Design |
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Quantità di ordine |
Ordine iniziale: 15,000 pezzi |
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Materiale |
Silicone solido per uso alimentare |
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Specifiche chiave |
Durezza: Riva A40 Resistenza alla temperatura : da -40 °C a 230 °C |
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Certificazione |
LFGB, FDA, BPA-Free |
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Tempi Di Consegna |
Valutazione DFM: 24h |
Dettagli del progetto
A British brand specializing in bottle and accessory protective products planned to develop a heat-resistant and non-slip glass sleeve. After the client designed and produced a prototype, several issues were revealed during testing: stress concentration at the edges of the holes, poor fit between the sleeve’s diameter and the glass, and inconsistent hole wall forming quality.
Il team di ingegneri di ZSR ha condotto un DFM (Progettazione per la produzione) evaluation of the samples within 24 hours, optimizing the perforations, sleeve diameter, and venting structure to help the customer improve product molding quality and assembly compatibility.
In base ai risultati del DFM, il progetto è passato alla realizzazione degli stampi e alla produzione dei campioni, seguite dalla verifica della qualità del primo lotto prima della produzione di massa.
Dati di consegna
Valutazione DFM in ambito ingegneristico
Rounded Cornering of Hole Edges
Z.S.R changed the honeycomb shape of the hole in the sleeve to a forma a goccia; added a 0.5 mm radius to the edge of each hole, and made a smooth transition at the root of the hole wall.
Honeycomb-shaped holes easily trap dust and coffee stains during use, requiring a small brush for cleaning. Teardrop-shaped holes provide a non-slip effect and are easier to clean; sharp-angled hole edges can cause the hole wall to fit too tightly to the core rod during demolding, making it easy for the wall to tear under strong pulling. The added R0.5 mm radius at the hole edges disperses single-point stress to the curved surface, ensuring smooth and complete demolding.
Precise Control of Sleeve Diameter Interference
Based on the elastic recovery characteristics of silicone Shore 40A, the interference of the sleeve’s inner diameter was precisely calculated to be 0.8 mm; a 0.6 mm raised ring was set around the upper and lower edges of the bottle sleeve; the inner diameter was controlled by the mold positioning reference, with a target tolerance of ±0.2 mm.
The bottle sleeve relies on interference fit to elastically hold the glass. Too much interference makes the sleeve too tight and difficult to install, while too little results in a loose fit that easily slips. A 0.8 mm interference fit, designed according to the elastic recovery characteristics of 40A silicone, combined with the raised rings at the top and bottom rims, ensures the bottle sleeve fits snugly against the glass wall; strict control of the inner diameter tolerance of the mold positioning datum ensures that the diameter of each sleeve is consistent.
Thickening and Edge Binding of Upper and Lower Edges
The engineers thickened the upper and lower edges of the sleeve da 1.8 mm a 2.4 mm, and used a 1.0 mm radius rounded edge binding at the opening to improve the rigidity of the opening.
The rim is the area repeatedly subjected to force when installing the glass; if it is too thin, it is prone to tearing. The top and bottom edges are thickened to 2.4 mm and rounded to improve the bending resistance of the edge, so it will not crack even after repeated use.
Realizzazione di stampi, produzione di campioni e verifica della qualità
Lavorazione dello stampo
Il gruppo ZSR è dotato di 10 centri di lavoro CNC avanzati and 4 macchine EDM, capable of creating silicone bottle sleeve molds. Core rods with hollowed-out holes are precision machined, cavities are mirror-polished, and parting surfaces are high-precision ground, with strict control over flash.
Stampaggio in silicone
La produzione è supportata da 48 macchine per lo stampaggio a stato solido, 12 macchine per lo stampaggio di liquidie 13 macchine per lo stampaggio a iniezione del silicone, using a solid-state molding integrated process that can rapidly produce 15,000 silicone bottle sleeves within 18 days. Over 10 printing and spraying production lines also allow for printing logos or patterns on silicone glass bottle sleeves.
Vulcanizzazione secondaria
After molding, the silicone glass bottle sleeves undergo secondary vulcanization at 200°C per 2 ore.
The secondary curing process removes small-molecule volatiles from the silicone, reduces product odor, and ensures the sleeves meet food contact safety standards.
Ispezione di qualità
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Test |
Condizioni dell'oggetto |
Criteri di accettazione |
Risultato |
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Cutout Tear Resistance Test |
Repeatedly pull and rub the cutout edges 2,000 times |
No tearing or cracking around the cutout edges |
Passare |
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Sleeve Fit Fatigue Test |
Repeatedly fit and remove the sleeve from a glass bottle 5,000 times |
No tearing, deformation, or visible stress whitening |
Passare |
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Grip and Anti-Slip Test |
Fit the sleeve onto a glass bottle, then invert and shake vertically |
Sleeve remains securely fitted without slipping off |
Passare |
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Prova di ciclismo termico |
50 cicli di riscaldamento e raffreddamento tra -40 °C e 230 °C |
No deformation, cracking, delamination, or oil exudation |
Passare |
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Ispezione delle tolleranze dimensionali |
Measure the inner diameter and cutout dimensions using a 2D optical measuring system |
Dimensional deviation within ±0.2 mm; cutouts properly aligned |
Passare |
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Ispezione visuale |
100% visual inspection of the sleeve surface |
No bubbles, incomplete filling, flash, or scratches; smooth cutout edges |
Passare |
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Test di migrazione a contatto con gli alimenti |
Tested in accordance with applicable LFGB and FDA requirements |
No unacceptable migration of harmful substances; meets applicable food-contact requirements |
Passare |
The production samples passed the specified cutout tear resistance, sleeve fit fatigue, grip and anti-slip, thermal cycling, dimensional, visual, and food contact inspections. In particular, we observed no tearing or stress whitening after 5,000 fit/removal cycles.
prodotto correlato
Recensioni e feedback dei clienti
The UK customer was very satisfied upon receiving the goods: “This bottle sleeve fits our glasses perfectly and doesn’t slip off. The color is also fantastic! Thank you!” The customer subsequently placed a follow-up order for 30,000 more.
Custom Silicone Glass Bottle Sleeve
OEM & ODM solutions for brands, retailers, wholesalers, and Ecommerce sellers. Food-grade silicone glass bottle sleeves with LFGB/FDA compliance.
Altro progetto
Per la produzione su scala industriale, ZSR Group offre anche un servizio dedicato di stampaggio a compressione del silicone per la realizzazione di componenti in silicone personalizzati.
