
A collection of failures and repairs of various packaging machines
2025-07-03
The following are common packaging machine failures and solutions, which are based on the repair experience from multiple sources:Heat sealing system failureLoose sealing: Check whether the temperature is too low (120-180℃ is recommended), whether the material is evenly distributed, and whether the pressure is balanced. The parameters need to be adjusted and the edges of the material need to be trimmed.Seal deviation: Recalibrate the heat sealer body positioning device and check whether the mechanical structure is loose.Temperature out of control: Replace the temperature regulator or thermocouple and check the short circuit problem.Motor and transmission failureMotor stall: Check the control lever jam, starting capacitor failure (common in paper feeding motors), or stepper motor driver damage (common in bag pulling motors).
Abnormal noise: Bearings/gears are worn and need to be replaced. The transmission belt needs to adjust the tension and add lubricating oil regularly.Spindle stuck: If the packaging machine cannot rotate, adjust the movable handle to maintain the front and rear spacing to avoid contact with the friction plate.Material handling problemPacking bag tearing: Reduce the torque of the bag pulling motor and adjust Proximity switch sensitivity or cam spacing (3-5mm is appropriate)Inaccurate powder metering: replace a thinner screw or dense-tooth plastic nozzle, check the uniformity of material density and leakageUnstable liquid feeding: dredge the blocked pipeline and calibrate the installation position of the plugUnusual faults in vacuum packagingInsufficient vacuum: replace the contaminated pump oil, clean/replace the filter, and use soapy water to detect the leak in the pipelineNo air extraction: Check whether the vacuum nozzle is blocked (can be dredged with a saw blade) and whether the sealing rubber ring is agingUneven seal: adjust the heating time to match the temperature, and replace the damaged airbagElectrical and control systemSensor failure: clean the sensor head, recalibrate the sensitivity, and check the line connectionSudden shutdown: check for circuit breaker tripping, power fluctuations, or poor contact of the emergency stop buttonAbnormal PLC signal: If the weighing system fails, check the sensor position deviation or loose screwsRegular maintenance is recommended: clean and lubricate the transmission parts every month, calibrate the sensor parameters, and check the stability of the electrical circuit. When encountering complex circuits or core component failures, it is recommended to contact professional maintenance personnel
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Application of bag packaging machine in food processing plant
2025-06-26
The application of bag-feeding packaging machines in food processing plants is mainly reflected in the following aspects:
1. Core application scenariosPre-prepared food packagingSuitable for the automated packaging of frozen foods such as dumplings and glutinous rice balls. The residual oxygen content can be controlled at ≤0.5%, significantly extending the shelf life. Some models support the "one out of two" design, with a theoretical capacity of 60-120 bags/minute, meeting the needs of large-scale production.
Seasoning packagingIt can accurately measure sauces, chicken essence and other products, with a filling error of ≤±1% and a sealing strength of ≥15N/15mm, effectively solving the problem of air leakage in traditional packaging.
Snack food packagingSuitable for products such as nuts and potato chips. Through the robotic arm bag grabbing (error ±0.5mm) and double-channel sealing technology, the packaging speed can reach 2000 bags/hour.
2. Technical advantagesEfficiency improvement: Full process automation increases efficiency by 5-10 times compared to manual work. For example, the production capacity of a sauerkraut factory in Liaoning has increased by 10 times.Quality Assurance: 304 stainless steel contact parts are used, which meets GMP standards, and the sealing flatness deviation is ≤±1mm.Flexible Adaptation: Supports three-side sealing, self-supporting bags and other bag types, and quickly switches packaging specifications by changing molds.3. Typical Cases Roxbill Juice Packaging: Aseptic filling is achieved by bag packaging to retain nutrients such as vitamin C.Prepared Meal Enterprises: Zhejiang Mingrui Intelligent Equipment serves many leading companies, with revenue of 229 million yuan from January to May.4. Selection Recommendations Give priority to models equipped with intelligent detection (such as automatic alarm for air leakage) and servo drive systems, and ensure that suppliers provide food-grade compliance certification
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Application of vffs packing machine in powder
2025-06-19
Vffs Packing Machines in Powder Packaging: Core Applications and Technical AnalysisI. Core Application FieldsFood Industry
Milk powder/rice powder packaging: Utilizes screw metering system (±1% accuracy) with nitrogen flushing for preservationSeasonings (e.g., chicken powder, pepper): Independent temperature control (±1°C) ensures sealing strengthPharmaceutical Industry
Traditional Chinese medicine powders: Oil-free vacuum pump design prevents cross-contamination (GMP-compliant)Veterinary/pesticide powders: Dust-proof structure reduces particle rebound (99.9% sealing integrity)Chemical & Daily Chemicals
Dyes/fragrances: Adapts to poor-flow materials via vibration-assisted feedingDetergent powders: Dual servo motor controls film pulling (60 bags/min)II. Key Technical AdvantagesSmart control: PLC + touchscreen for one-touch parameter adjustment (bilingual interface)Dust control: Extended feed port + suction device reduces dust leakage by 90%Multi-bag adaptability: Produces pillow, stand-up, and handle bags (120–180mm bag size)III. Selection GuidelinesHigh-precision needs: Opt for screw metering models (e.g., DCS-3A)Special materials: Poor-flow powders require vibration-assisted or pneumatic feedingExtended functions: Verify integrated thermal transfer coding for batch printingNote: Parameters should align with material properties (particle size, flowability); custom solutions are available
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Professional analysis of the working principle of pillow packaging machine
2025-06-13
1. Core Workflow
Film Conveying and Positioning
The roll packaging film is unfolded by the tension adjustment system, and the printed color mark is captured by the photoelectric sensor (positioning accuracy ±0.5mm). The servo system dynamically compensates for the film stretching error to ensure accurate sealing and cutting positions.
Product Loading
The conveyor belt pushes the packaged material to the former. The feed trajectory of the special-shaped product is adjusted by 3D visual positioning (adapting to 8 permutations and combinations), and the regular product directly enters the cylindrical cavity formed by the film.
Three-dimensional sealing
Longitudinal sealing: The middle sealing wheel completes hot melt bonding in the length direction of the film at a temperature of 130-180℃ (sealing strength ≥15N/15mm)
Horizontal sealing: The rotary sealing knife synchronously cuts and seals both ends, and the anti-miscutting system is used to reduce the scrap rate
Finished product output
The cut independent packaging is shaped in the cooling section and output through the flat belt conveyor system (speed matching 30-230 packages/minute)
II. Key technical modules
Photoelectric positioning system, three error compensation methods of forward and backward/braking/synchronous, tracking error ≤0.3mm
Servo control system, PLC+HMI human-machine interface, support 20 recipe storage Speed ratio 1:10
Heat sealing system, double-sided heating plate with silicone pressure wheel, sealing time 0.5-3 seconds adjustable, temperature control accuracy ±1℃
III. Typical application scenarios
Food industry: Biscuits/bread and other regular product packaging, qualified rate can reach 99.8%
Medical field: GMP-certified clean design, support aluminum-plastic composite film sealing
Industrial parts: Customized formers adapted to special-shaped parts packaging
This principle has achieved the upgrade from traditional mechanical transmission to intelligent servo control. The latest model can monitor energy consumption and consumables in real time through the IoT interface. Specific parameters need to adjust the heat sealing temperature and conveying speed according to the characteristics of the packaging
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High-speed Flow Wrapping Machine (for snack foods/frozen products) Technical analysis
2025-06-06
Flow Wrapping Machine
1. Core performance parameters
Packing speed: Servo-driven models can reach 200 packs/minute (chain machine single-blade configuration)
Positioning accuracy: Color mark tracking error ≤0.3mm (bidirectional photoelectric compensation technology)
Temperature control system: PID independent adjustment, suitable for PE/PP/composite film
2. Special design for snack foods
Anti-sticking material treatment: Special conveyor belt to avoid puffed food breakage
Flexible switching: Supports fixed-length/indefinite-length packaging of special-shaped products such as biscuits and bread
Additional functions: Optional corner insertion, inflation, and hanging hole devices
3. Frozen product adaptation solution
Low-temperature stability: Continuous operation in low-temperature environment (anti-condensation circuit design)
Anti-empty bag technology: PLC control + pneumatic correction to avoid ice crystals causing cutter deviation
Quick film change: The drum rotation device supports 30-300mm film width switching
4. Comparison of typical equipment models
Servo paper feeding, 20% energy saving, small package frozen dumplings
Three-axis linkage, 3-minute changeover time, snack food material handling line
Anti-cut protective cover and direct heat longitudinal sealing, ice cream/quick-frozen pastries
5. Selection suggestions
High humidity environment: stainless steel body is preferred
Multi-category production: visual inspection and automatic correction system are required
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