Glue Volume & Intermittent Spray Controller for Hot Melt Adhesive Machines

Glue Volume & Intermittent Spray Controller for Hot Melt Adhesive Machines

  SUITABLE FOR ALL BRAND GLUE APPLICATION DEVICE .

We can help buyer to purchase brand 's spares : Nordson , Robatech , ITW Dynatec , Valco Melton , Meler ,Graco , Bühnen ，NDC 新日成 , Wahrheit 跨海， Jiadeli 佳德力, Apex 爱普克 ，huangsang 金皇尚 , etc. 

Product Description –

1. Overview

The Glue Volume & Intermittent Spray Controller is a high‑performance control unit specifically designed for hot melt adhesive coating equipment. It precisely manages adhesive output volume, spray timing, and spray patterns. Acting as the “brain” of the entire hot melt system, the controller coordinates solenoid valves, pneumatic components, gear pumps, and heating systems to achieve everything from continuous extrusion to high‑speed intermittent spray applications.

The controller can operate as a standalone unit or be integrated as an optional module with the hot melt machine. Whether for intermittent glue application in carton sealing, precise volume control in nonwoven production, or precision dispensing in electronics manufacturing, this controller is the core element ensuring process consistency and product quality.

2. Core Functions

• Precise Glue Volume Control – Regulates adhesive output by adjusting gear pump speed, air pressure, or solenoid valve open time. Advanced systems employ servo control and intelligent volume conversion, allowing direct input of glue weight (in grams) for accurate dosing.

• Intermittent Spray Control – Controls the opening and closing of spray heads via solenoid valve switching. After setting spray time and interval time, the head operates intermittently, producing discrete adhesive segments or predefined spray patterns on the substrate.

• Spray Pattern Programming & Storage – Supports multiple spray mode settings and storage; programmable complex patterns (e.g., dots, strips, spirals, stitch beads). Users can quickly switch between different product specifications using stored recipes.

• Production Line Speed Synchronisation – Real‑time speed signals are captured via encoders or distance sensors; the controller automatically adjusts spray timing and volume to synchronise glue placement with product movement.

• Precise Temperature Management – Integrated PID temperature control independently manages each heating zone (tank, hose, gun) with accuracy up to ±1°C.

• Online Adjustment without Stopping – Allows spray time, bead length, corner parameters, etc., to be modified while the machine is running, minimising production interruptions.

3. Technical Specifications

Note: Values are typical – actual performance depends on model and configuration.

4. Main Controller Types

• Pattern Controllers – The core unit for spray timing and pattern control. Can independently manage multiple glue guns, supporting time‑based mode, encoder‑based mode, etc. Representative models include Valco Melton MCP series (4/6/8 channels, with block protection and remote access), Graco InvisiPac PC‑8 series (one‑button switch between solid and stitch patterns, colour LCD with pattern preview), and Nordson Spectra™ series (advanced pattern programming with intuitive control).

• Temperature Controllers – Dedicated to precise temperature management for all heating zones. Employ PID algorithms with PT100 sensors. Typical products like Nordson Concert™ series can regulate 3–5 heating zones per controller.

• Flow Controllers – Monitor and regulate adhesive flow rate in real time; the core component of glue volume fluctuation management. Used with flow meters and metering stations to achieve closed‑loop flow control, reducing waste and improving quality.

• Integrated System Controllers – Combine pattern control, temperature control, flow monitoring, and more in one unit. Usually equipped with large touchscreen HMI, capable of managing multiple heating zones and multiple gun groups simultaneously.

5. Key Features

• High‑Speed Response – Supports intermittent spray frequencies up to 10,000 cycles/min; valve opening time can be as low as 3.5 ms, meeting the stringent spray rhythm of high‑speed production lines.

• Multiple Control Modes – Offers time mode (based on preset times), encoder mode (based on product position), and distance‑sensing mode, adaptable to different production lines and processes.

• Intuitive Human‑Machine Interface – Equipped with LCD or colour touchscreen with graphical menus; parameter setting is straightforward. High‑end models provide pattern preview, allowing verification without actual glue application.

• Powerful Storage & Programming – Stores 99+ job recipes; supports multiple independent spray events per program. One‑touch recall drastically reduces changeover time.

• Online Adjustment without Stopping – Allows spray time, bead length, corner adjustments, etc., to be modified while the line is running – no downtime required for process optimisation.

• Precise Temperature Interlock – Temperature controller interlocks with the main machine; production automatically starts only when the adhesive reaches preset temperature. Standby mode can lower temperature to prevent degradation and carbonisation.

• Rich Expandability & Communication – RS‑232 diagnostic port, USB data backup, compatibility with multiple industrial protocols, enabling integration with host computers, vision inspection systems, and other equipment.

6. Application Scenarios

• Packaging – Intermittent and continuous glue application for carton sealing, case forming, pharmaceutical and cosmetic packaging lines.

• Nonwovens & Hygiene – Precise volume control and pattern spraying for disposable hygiene products (diapers, sanitary pads, etc.).

• Automotive – Precision dispensing for lamp assembly, interior bonding, wire harness fixation.

• Electronics – Precision hot melt dispensing and jetting for mobile phones, computers, and other devices.

• Bookbinding & Envelope Manufacturing – Spine gluing, envelope sealing applications.

• Food & Pharmaceutical Packaging – Spray applications requiring high hygiene and precision standards.

7. Selection & Usage Recommendations

• Selection Criteria – Choose based on required number of channels (guns), maximum production speed, precision needs, number of heating zones, and budget. Established brands such as Nordson, Graco, Valco Melton, and ITW Dynatec offer proven product lines.

• Encoder Matching – If speed synchronisation is needed, ensure the encoder matches the line speed signal format.

• Communication Compatibility – When integrating with host computers or vision systems, confirm protocol and interface compatibility.

• Regular Maintenance – Periodically check controller cables and solenoid driver outputs; keep the control cabinet well‑ventilated and cool.

• Program Backup – Always back up tuned job recipes via USB or host computer to prevent data loss.

Meta Title:
Hot Melt Glue Volume & Intermittent Spray Controller – Pattern, Temperature & Flow Control
Meta Description:
Precision controllers for hot melt adhesive machines. Manage glue volume, intermittent spray patterns, temperature & flow. Up to 10,000 cycles/min, multi‑channel, speed synchronisation. Ideal for packaging, nonwovens, automotive, electronics. Get the right control solution.

Meta Title:
Hot Melt Glue Volume & Intermittent Spray Controller – Pattern, Temperature & Flow Control
Meta Description:
Precision controllers for hot melt adhesive machines. Manage glue volume, intermittent spray patterns, temperature & flow. Up to 10,000 cycles/min, multi‑channel, speed synchronisation. Ideal for packaging, nonwovens, automotive, electronics. Get the right control solution.