As a component expert with full-chain capabilities in precision casting, gear manufacturing, CNC ultra-finishing, and high-end assembly, Hansheng Automation draws on its professional knowledge base of packaging machinery to explain how to reduce failures in cartoning machines and case packers from a component perspective.
Common faults of cartoning machines and their solutions
The cartoning machine's actions of unloading, opening, filling, and closing lids place extremely high demands on the drive system's indexing accuracy, positioning rigidity, and repeatability. Below are several common fault scenarios, described from the problem itself to analysis of the underlying causes and ultimately the solution.
Problem 1: The packaging carton fails to open smoothly or label suction is poor
The mechanism that drives the carton opening and positioning rotation is typically a cam indexer or hollow rotary table, as shown in the figure below. If this mechanism has accuracy or positioning errors, it can cause deviations in the robot's trajectory, preventing accurate opening and closing operations.
Our recommended solution is to purchase a high-precision cam indexer or hollow rotary table as a replacement. For example, Hansheng Automation's standard cam indexer offers an accuracy of ±30 arc seconds, with customized models reaching ±15 arc seconds. The standard accuracy of the hollow rotary table is ≤15 arc seconds, and the customized accuracy is ≤10 arc seconds. These precisions ensure that every stop of the table is extremely precise.
Problem 2: High damage rates for transmission components such as belts, bearings, and toothed belts, leading to equipment failures
The high damage rate of these transmission components requires analysis from multiple perspectives. Most importantly, the component's quality and precision meet the transmission requirements of your equipment. If there are any issues, these components can instantly cause belt breakage and bearing damage due to impact loads and other factors.
The solution is to confirm with suppliers when purchasing these components that they meet your equipment's requirements. Furthermore, quality and precision must also be guaranteed. Since components like belts and toothed belts are consumables on equipment, it's recommended that warehouses maintain a stock of these industrial control spare parts. Hansheng Automation also offers industrial control spare parts such as timing belts and synchronous pulleys.
Problem 3: Loud operating noise and jerking equipment
Noise and jerking are caused by friction and wear. The surface finish and tooth profile accuracy of core moving components (such as cams and gears) determine their wear resistance and smoothness.
The solution is to select high-precision transmission gears. Hansheng Automation boasts extensive CNC machining and gear manufacturing capabilities. We produce gears that meet ISO/DIN/GB Grade 5 precision, and our CNC parts achieve an ultra-mirror finish of ±0.002mm. This ensures that the tooth profile, meshing, and inter-component interactions reduce friction and noise during operation.
Case Packer failure and structural component reliability
Automatic cartoning machines will inevitably produce various faults during use. Common faults and corresponding solutions are as follows.
Frame vibration and inaccurate positioning
Insufficient rigidity in the equipment base can amplify vibration and affect the accuracy of all actuators. The solution is to find a reliable casting supplier. Hansheng Automation has the capability to cast large components, with sizes up to 3800 x 1500 x 1200 mm. Using processes such as lost foam casting, we can produce frames and bases with excellent vibration damping and structural rigidity, with specified tolerances within ±0.03 mm.
Slow clamping action or insufficient clamping travel
This is usually caused by loose bolts or worn front trigger and trigger plates. Tighten the bolts and ensure the correct position of the front trigger shaft. Alternatively, replace the front trigger or trigger plate.
Equipment failure is unavoidable, but regular inspection and maintenance of the equipment can greatly reduce the failure rate. Hansheng Automation, as your technical support, can provide you with replacement parts with longer life and higher precision.
References
"Practical Manual of Packaging Machinery" - A practical guide focusing on the operation, maintenance, and troubleshooting of packaging machinery.