Macchina automatica per serigrafia su tazze da caffè

Macchina automatica per serigrafia su tazze da caffè

Hai difficoltà con la registrazione incoerente su tazze da caffè affusolate? JST‑R300 macchina serigrafica completamente automatica per bicchieri risolve questo con precisione servoazionata – stampando fino a 4.500 tazze all'ora with precisione ±0,1 mm. Questo articolo spiega il flusso di lavoro di stampa completo e fornisce soluzioni a problemi comuni come lo scollamento dell'inchiostro sotto il ghiaccio, l'effetto ghosting e i disallineamenti dei fissaggi. E non solo lo leggi: nostro ingegneri di lingua inglese ti mostrerà l'intero processo in diretta tramite videochiamata, utilizzando i propri campioni di prodotto.

In questa demo vedrai:

• ✅ Come il sistema di caricamento automatico alimenta le tazze continuamente senza inceppamenti
• ✅ Perché il trattamento corona viene saltato per i bicchieri di carta – e quando è necessario per la plastica
• ✅ Come un sensore di linea di giunzione (opzionale) evita la stampa sulla giunzione del bicchiere di carta
• ✅ La stazione di stampa con doppi servomotori, mandrino elettromagnetico e registrazione istantanea
• ✅ Come Polimerizzazione UV‑LED (1 kW, 395 nm) offre risultati immediati e resistenti ai graffi
• ✅ Auto-scaricamento, impilamento e conteggio – tutto senza intervento manuale
• ✅ E infine, il prodotto finito Tazza da caffè stile Starbucks – crisp, durable, and ready for branding

👉 Preferisci prima guardare? Il nostro ingegnere eseguirà lo stesso processo con il tuo design della tazza in una videochiamata privata – nessun traduttore necessario. Prenota ora la tua demo live gratuita.

Vantaggi principali in sintesi

Benefit	Perché è importante
Registrazione ±0,1 mm	Ogni stampa atterra esattamente dove dovrebbe – anche su passaggi multipli per lavori multicolore.
4.500–4.800 pz/ora	Alta produzione per ordini commerciali, ma completamente automatico per risparmiare sui costi di manodopera.
Tavola rotante a 8 stazioni	Pretrattamento, stampa, polimerizzazione e scarico avvengono simultaneamente – nessun tempo morto.
Realizzato da un vero produttore	Fabbrica di 9.000 m², 10 centri CNC e ingegneria interna dal 2013.
Parla con i nostri ingegneri – in inglese	Nessuna barriera linguistica. Il nostro esperto PLC con 20 anni di esperienza parla inglese fluentemente e partecipa alla tua videochiamata per rispondere alle domande tecniche in tempo reale.
Free pre‑shipment video inspection	We walk you through your finished machine before it’s crated – you see every detail, and we adjust if needed.

Passo dopo passo: come stampiamo una tazza da caffè in stile Starbucks

All images below show real production on the JST‑R300 at our Shenzhen factory.

Step 1: Auto‑Loading Magazine & Conveyor

The operator places stacks of blank cups onto the loading magazine. An infrared sensor on the conveyor detects when cups are running low; if empty, the air cylinder lifts the magazine and transfers a new batch onto the belt. This ensures continuous feeding – no manual reloading during production.

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Step 2: Pick‑and‑Place Robotic Arm

A servo‑driven robotic arm picks each cup from the conveyor and places it into a custom‑machined fixture on the 8‑station turntable. The fixture is CNC‑machined in‑house (accuracy ±0.01 mm) to perfectly match the cup’s taper, guaranteeing zero movement during printing.

🔧 Trust anchor: All fixtures are made on our own 10 CNC machines – we control quality and lead time.

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Step 3: Corona Treatment (for Plastic Cups – Skipped for Paper)

Per PP, PET, or PVC cups, this station increases surface energy so that UV ink adheres strongly. However, in this paper cup demo we skip corona treatment – paper fibres naturally absorb the ink, so no pre‑treatment is needed. The machine’s PLC allows you to enable/disable this station with one touch.

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Step 4: Empty‑Fixture Detection – Prevent Ink on Tooling

Before the turntable advances to the printing station, a sensor checks whether a cup is actually seated in the fixture. If no cup is detected, the machine alarms and stops the print head – preventing expensive UV ink from being squeezed directly onto the tooling. This feature reduces waste and tool‑cleaning downtime.

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Step 5: Seam‑Line Sensor (Optional Add‑on for Paper Cups)

Paper cups have a vertical seam that creates an uneven surface. This optional sensor detects the seam’s position and signals the PLC to skip printing over that area – so your logo never lands on the seam, ensuring a professional finish.

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Step 6: The Printing Station – Precision in Motion

This is the heart of the machine.

• UN electromagnetic chuck behind the fixture engages and holds the cup firmly.
• UN rotary servo motor spins the cup in perfect sync with the screen’s movement.
• Meanwhile, a linear servo motor drives the screen (mesh) left and right via a TBI precision screw.
• The squeegee presses down, transferring UV ink through the mesh onto the cup surface.

All movements are controlled by the PLC and two servo motors – giving you the ±0.1 mm registration that makes multi‑colour jobs possible.

📐 Fixture Customization for Different Cup Sizes: Since cups from 4oz to 32oz vary significantly in diameter, taper, and height, we provide custom‑machined fixtures for each size. This three‑point support design ensures the cup remains stable during printing, thereby avoiding ghosting or misregistration caused by movement. For example, a 32oz large cup requires a dedicated fixture with taller support posts.

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Step 7: Sensor Swap for Multi‑Colour Overprint

To print a second colour, we switch the seam‑line sensor (for paper cups) with a Leuze contrast sensor. This sensor detects registration marks printed in the first pass and guides the second screen for perfect alignment – achieving multi‑colour results through sequential overprinting, all with the same single print head.

This is how we turn a single‑colour machine into a multi‑colour printer – without investing in a 4‑colour carousel.

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Step 8: UV‑LED Curing – Instant, Energy‑Efficient

Immediately after printing, the cup passes under a 1 kW UV‑LED lamp (395 nm). The UV light instantly polymerises the ink, so cups can be stacked or packed right away – no drying racks, no waiting. You can adjust curing time directly on the touchscreen PLC to match your ink and cup material.

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Step 9: Auto‑Unloading with Vacuum Suction

A second robotic arm picks the cured cup from the turntable using vacuum suction and places it onto an outfeed conveyor. Important design note: the fixture must not be too tight – otherwise the suction may not release the cup. Our engineers always verify the fit during fixture design to avoid this issue.

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Step 10: Automated Stacking & Counting

Cups on the conveyor are aligned and pushed into a stacking magazine. A sensor counts the cups; when the stack reaches a pre‑set count (say 50), an air cylinder separates it, and the stack is pushed to the packaging area. No manual counting or stacking – the machine does it all.

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Step 11: Finished Product – Starbucks‑Style Coffee Cup

The final result: a beautifully printed tapered paper cup, with crisp edges, accurate registration, and a durable finish that survives hot beverages. Whether you are printing for coffee chains, bubble tea shops, or catering suppliers, the JST‑R300 delivers consistent quality – and you can verify it before you buy.

Domande frequenti (FAQ)

D: Siete un'azienda produttrice o una società commerciale?
A: We are a produttore diretto – Shenzhen Juste Machine Co., Ltd., established in 2013. We own a 9,000 m² factory with in‑house CNC, assembly, and testing lines. You deal with the factory, not a middleman. → Book a live video tour of our factory with our English‑speaking sales team.

Q: Can this machine print on my specific product (tapered cups, bowls, plastic bottles)?
A: Yes – it handles tapered cups, bowls, and conical containers from 4 oz to 32 oz, made of paper, PP, PET, or PVC. We custom‑machine fixtures for your exact product. (Note: it cannot print on straight cylindrical cups – the taper is essential for proper registration.) → Send us your sample for a free print test and live demo.

Above: Fixture size comparison – 4oz (left) vs 32oz (right). Each cup size requires a dedicated fixture for stable three‑point support.

D: Perché il vostro prezzo è più alto rispetto ad altri fornitori?
A: Because we don’t cut corners. We use genuine HIWIN guides, AIRTAC pneumatics, and TBI screws – all verified brands. Our machines undergo 48‑hour burn‑in and every unit is individually tested with your product before shipping. Based on our experience with clients in 120+ countries, paying slightly more upfront saves you far more in downtime and repairs. → Let us calculate your ROI based on your production volume.

D: I vostri ingegneri parlano inglese? Possiamo comunicare senza un traduttore?
A: Absolutely. Our senior mechanical and PLC engineers are fluent in English – they will join your video call directly to answer technical questions, explain machine settings, and even guide you through maintenance procedures. No translation delays, no misunderstandings. → Schedule a 15‑minute video call with our English‑speaking engineer.

Q: Posso vedere la macchina che stampa il mio prodotto prima di pagare?
A: Yes – we offer a demo video live gratuito where we run your actual product samples. You’ll see the entire process in real time, and our engineer will explain every step in fluent English. If you’re not 100% satisfied, there’s no obligation. → Request your free live sample‑printing video now.

D: Posso ispezionare la mia macchina prima della spedizione?
A: Yes – we conduct a pre‑shipment video inspection with you. We’ll walk through the machine, show you the component brands, run a test, and confirm all configurations. Only when you sign off do we pack and ship. → Arrange your pre‑shipment video inspection.

D: Perché il mio logo stampato si stacca quando aggiungo ghiaccio al bicchiere?
A: This happens because standard inks become brittle and lose adhesion at low temperatures. For cold‑drink applications, we recommend low‑temperature resistant PP screen printing ink, which maintains adhesion in freeze tests down to -38°C. We can recommend specific ink models based on your cup material and usage scenario. → Contact us for the perfect ink solution for your cold cups.

 

Q: Why do my printed cups have ghosting or blurry images?

A: Ghosting usually comes from two causes: unstable fixturing (the cup moves during printing) or uneven squeegee pressure. Our JST‑R300 uses a mechanical rack‑and‑pinion drive combined with a three‑point stable fixture to minimise mechanical vibration. We also provide technical support to help you adjust squeegee pressure (recommended 2.5‑3.0kg) for optimal results. → Contact us for technical support on ghosting issues.

 

Q: What maintenance does the machine require after printing?

A: After each printing session, we recommend cleaning the screen mesh with solvente per lavaggio dello schermo to remove residual ink and prevent clogging. Regular cleaning extends mesh life and ensures consistent print quality. Our English‑speaking engineers can guide you through the complete maintenance procedure on a video call. → Download our maintenance checklist or schedule a walkthrough.

Come pulire la rete dello schermo dopo la stampa (Guida rapida)

Since screen mesh cleaning is essential for maintaining print quality, here are the basic steps:

1. Remove the screen frame from the machine and place it on a flat, clean surface.
2. Apply solvente per lavaggio dello schermo evenly over the mesh surface using a soft sponge or brush.
3. Gently scrub both sides of the mesh to dissolve residual UV or solvent ink.
4. Rinse thoroughly with water and blow‑dry with low‑pressure air.
5. Inspect the mesh under light for any remaining ink particles – repeat if necessary.

💡 Consiglio: Our engineers can demonstrate this entire procedure on a live video call, tailored to your specific ink type and production volume. → Book a maintenance demo.

Pronto per avviare la tua attività di stampa?

You’ve just read a detailed walkthrough. Now imagine getting a private, real‑time video walkthrough of your own product being printed, guided by our 20‑year PLC engineer – tutto in inglese fluente, con zero barriere comunicative.

Here’s how it works:

1. Inviaci il tuo design e alcuni campioni di prodotto vuoti.
2. We custom‑machine a fixture and run your print test.
3. We go live on video – our English‑speaking engineer shows you everything, answers your technical questions on the spot, and you see the final print result in real time.

There is zero risk. If you’re not 100% convinced, you walk away with no obligation. And before shipping, we’ll do a pre‑shipment video inspection with you, so you know exactly what’s in the crate.

Not sure which macchina per stampa serigrafica fits your cup? Or need a custom fixture? Click the image below to chat with us directly.

 

📧 Email: Alan@justcig.com
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