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Automatic glue filling machine is a professional equipment used to fill glue (such as instant glue, epoxy resin, silicone gel, UV glue, anaerobic glue, etc.) into containers (such as hoses, bottles, syringes, aluminum tubes) automatically and with high precision. It is widely used in various industries such as chemical, electronic, medical, automobile, and household goods, etc.
Pressure barrel/feeding tank: used to store large quantities of glue raw materials, glue can be delivered to the filling head by air pressure or pump.
Pump: According to the glue viscosity, choose different types of pumps, such as gear pump, screw pump, plunger pump, pneumatic pump, etc., to ensure stable and continuous glue delivery.
Filling Valve: This is the core component that performs the filling action and is usually made of stainless steel or special corrosion-resistant materials. Common types are:
Peristaltic pump valve: It is suitable for glue that is sensitive to shear force, easy to cure, and strong corrosive. The glue only touches the hose, so it is easy to clean.
GEAR PUMP VALVE: Suitable for high precision, medium to high viscosity glue, accurately controls the flow by controlling the number of turns the gear turns.
Plunger pump valve: suitable for extremely high viscosity glue (such as paste glue) or occasions where extremely high precision is required.
Vacuum suction back valve: After filling, the suction back function is used to instantly cut off the flow of glue water, effectively preventing dripping and drawing, which is very important for quick-drying glue and high-viscosity glue.
PLC (Programmable Logic Controller): The brain of the equipment, responsible for controlling the entire filling process, such as start/stop, filling volume setting, speed adjustment, etc.
Human Machine Interface (HMI Touch Screen): The operator easily sets parameters (such as filling capacity, speed, quantity, etc.), monitors operating status and views production data through the touch screen.
High-precision sensor: used to detect bottle position, material level, lid, etc. to ensure accurate action.
Transmission and positioning system:
Conveyor belt/turntable: automatically convey empty containers to filling station, and automatically send them out after filling is completed.
Indexing discs or linear guides: Precisely position containers and ensure that the filling head can be accurately aligned with the bottle mouth.
Rack and enclosure:
Usually made of stainless steel, GMP compliant, easy to clean, corrosion resistant, strong and durable.
Bottle loading: Empty containers enter the positioning station of the filling machine by conveyor belt or manual placement (fully automatic line is equipped with automatic bottle loading machine).
Positioning: The indexing plate or clamp secures the container precisely below the aligned filling nozzle.
Raising and lowering: The filling head is lowered (or the container platform is raised), so that the filling nozzle penetrates deep into the container at a certain height to prevent bubbles and splashes during filling.
Filling: The control system gives instructions, the filling valve opens, and the pump starts to work, filling precisely according to the preset capacity (volume or weight). The filling process may be accompanied by a lift or follow function, keeping the distance between the mouth and the liquid level constant.
Back suction and anti-dripping: At the end of filling, the valve port is quickly closed and sucked back to completely cut off the glue to prevent dripping and drawing.
Reset: The filling head is lifted and returned to the initial position.
Downbottle: The filled container is sent to the next station by conveyor belt (e.g. capping, labeling, packing).
High precision: The filling accuracy can usually reach ± 0. 5% ~ ± 1%, which greatly reduces material waste and ensures product consistency.
High efficiency: Automated operation, the speed can reach tens or even hundreds of bottles/minute, which is much higher than manual filling.
Anti-dripping: Vacuum suction back and other functions effectively solve the problems of glue drawing and dripping, keep the equipment clean and reduce loss.
Wide adaptability: By changing different pumps, filling heads and fixtures, it can accommodate various adhesives from low viscosity to high viscosity, water-based to solvent-based, and AB-component to single-component.
Humanized operation: PLC + touch screen control, easy parameter setting, memory function can store a variety of formulas.
Easy to clean and maintain: With quick connection clamp and modular design, the contact material part can be quickly disassembled and cleaned, reducing the refueling time.
Filling capacity range: 2L to 50L can be filled per barrel.
Weighing range: It can weigh 1kg to 100kg of glue.
Filling speed (with water as medium): 50 to 100 barrels per hour can be filled.
Filling station selection: According to the actual output configuration, usually 1 to 2 stations.
Number of feeding nozzles: 1 to 2 feeding nozzles are equipped in a single station.
Measurement accuracy: The error is controlled within ± 0. 2%.
Explosion-proof grade of the whole machine: It meets Exdeibmb Ⅱ BT4Gb standard to ensure safety performance.
Strong adaptability: It can efficiently fill various chemical solvent glues to meet different production needs.
Accurate measurement: Adopt advanced technology to ensure high measurement accuracy, and the error is controlled within ± 0. 2%.
Safe and reliable: The explosion-proof level of the whole machine reaches the Exdeibmb Ⅱ BT4Gb standard, ensuring safe operation.
High-efficiency capacity: It can fill 50 to 100 barrels per hour, improving production efficiency.
Flexible configuration: The filling station can be configured according to the actual output, usually 1 to 2 stations, to meet different output needs.
Convenient operation: A single station is equipped with 1 to 2 feeding nozzles, which is easy to operate and saves labor costs.
The whole machine integrates composite explosion-proof technology and leakage-free environmentally friendly filling function to ensure safe use and environmental protection.
The structure is simplified, the operation is stable, the maintenance is convenient, and the floor space is small, so it is suitable for various production environments.
The number of filling nozzles can be flexibly selected according to different material characteristics to meet diversified production needs.
The driving force of the conveyor line is optional to meet different filling speed needs, while supporting the no-power mode.
Auxiliary functions such as nitrogen replacement, line purging, cleaning and heat tracing can be personalized according to the characteristics of filling materials.
Challenges: Easy to flow, possibly volatile, easy to produce bubbles, and some are corrosive.
Solution:
Anti-drip: Must be equipped with a vacuum suction back valve, which is a top priority. Otherwise, the glue will keep running and contaminate the equipment and bottle mouth.
Anti-corrosion: If the glue is highly corrosive (such as instantaneous glue, cyanoacrylate), all contact parts must be made of stainless steel 316L or PTFE (polytetrafluoroethylene).
Anti-bubble: The filling head should be able to extend into the bottom of the bottle, and the bottom lifting filling or submerged filling method should be adopted to allow the glue to flow down the bottle wall to avoid bubbles caused by direct impact.
Challenges: Poor flow, requires thrust, may contain fillers (e.g. calcium carbonate in silica gel).
Solution:
Provide power: A power pump must be used (screw pump is the absolute mainstream), and filling cannot be completed by gravity.
Patency: The material pipe and valve channels should be thicker and the path should be shorter to reduce resistance.
Container Disposal: For hose (e.g. toothpaste tube) packaging, a matching tube clamp may be required to secure the tube body.
Challenge: Near solid state, difficult to flow, and requires huge thrust.
Solution:
Powerful Power: High-power screw pump or pneumatic plunger pump is the only choice. The plunger pump extrudes the material by pushing the piston, and the thrust is huge.
Pressure vessel: The feeding barrel may need to be changed to a pressure barrel, and the paste material is “pressed” to the filling machine from the bottom by air pressure.
No drip: High viscosity materials themselves are not easy to drip, but may be “drawn” at the end, so an anti-draw scraper or a rotary wire breaker can be useful.
AB glue (two-component):
The core is proportioning accuracy. A double-head double-pump filling machine must be selected, and the two pumps (usually screw pumps) are driven by the same servo motor or controlled separately, ensuring that the volume ratio of material A and material B output at each revolution is constant.
Thorough mixing in a static mixing tube is required after filling.
Glue containing solid particles:
Abrasion resistance is key. The pump body and valves need to be made of abrasion-resistant materials such as hardened stainless steel or ceramic.
Avoid using a gear pump because particles can wear or even seize the gear.
