Empty Can Body Detection Machine
1.With an image inspection system developed independently,
2.the maximum speed can reach 1000 cans / min.
3.Reliable detection and stable operation for long time Easy to install and easy to operate
I. Equipment Specifications and Site Requirements
1. Project Overview
Project Name: Empty Can Detector
Description: This system adopts advanced machine vision technology to perform fully automatic, non-contact, online inspection of empty cans. It detects defects such as mouth deformation, foreign matter on the body, internal contamination, and collapsed cans.
Rated Capacity: 1000 cans/min
Container Type: Two-piece can
Container Volume: 100 mL – 600 mL
2. Environmental Conditions
Altitude Range: 5 – 3000 m above sea level
Operating Temperature: 5°C – 40°C
Relative Humidity: 50% – 65% RH
Factory Requirements: Floor flatness, load-bearing capacity, and site conditions must comply with national standards to ensure stable operation.
Storage Requirements: After delivery, equipment and parts must be stored according to relevant standards. During storage, proper lubrication and upkeep are required to prevent surface damage or deformation that could impact installation, commissioning, and operation.
3. Equipment Operating Conditions
Noise Level: ≤85 dB (actual level depends on container type, power, and building acoustics).
Power Supply: 220V, 50Hz, single-phase (other voltages require advance confirmation; specifications, lead time, and price may differ).
Total Power Consumption: Approx. 1.0 kW
Control Voltage: 24VDC
4. Equipment Overview
4.1 Empty Can Detector
Model: MT-YLG-KG-C1-01
Quantity: One set
Inspection Speed: 1000 cans/min
Container Type: Applicable to two-piece cans
Line Compatibility: Designed for packaging lines not exceeding 1000 cans/min
Installation Point: Single-lane conveyor section before the filler
Function: Vision-based inspection system capable of identifying mouth cracks, V-shaped edge notches, flaps, dents, external contamination, and internal foreign matter, with automatic rejection of defective cans.
4.2 System Principle, Workflow & Installation
A positioning sensor detects incoming cans, records their ID, and synchronizes encoder data via the control system.
The sensor triggers the camera to capture an image. The image processor analyzes the captured data, displaying results on the HMI and transmitting rejection signals to the control unit.
When defects are identified, the PLC activates the rejection device to remove the corresponding can.
Installation Requirement: A 2 m straight conveyor section must be provided by the customer. Cans must maintain a 2 cm gap without compression or overlapping. This condition is critical for accurate inspection.
4.3 Empty Can Detection Module
Inspection Scope & Accuracy:
Mouth Area: Detection of deformations, cracks, V-notches, and flaps.
Can Body: Identification of dents, scratches, or surface contamination.
Interior: Recognition of internal foreign objects.
Structural Integrity: Detection of under-pressurized or collapsed cans.
Detection position
| Defect type
| Accuracy
| Illustration
| Rejection rate
| False rejection rate
|
Can mouth
|
Can mouth curling notch
|
1 mm X 1 mm |
≥99.9% |
≤0.05% | |
Deformation of the can mouth flange
| Upward or downward protrusion height ≥ 2mm or horizontal length ≥ 4mm
|
≥99.9% | |||
Depression at the mouth of the tank
| 5% overall
| ≥99.9% | |||
Can mouth ovality
| ≥1cm | ≥99.9% | |||
Dirt on the can edge
| 2 mm x 2 mm, thickness ≥ 1 cm
| ≥99.9% | |||
Tank inner wall
| Dirt in the middle of the inner wall
| 3 mm x 3 mm, thickness ≥ 1 mm
| ≥99.9% | ||
bottom of jar
| Foreign matter in the middle of the tank bottom
| 3 mm x 3 mm, thickness ≥ 1 mm
| ≥99.9% | ||
Foreign matter (opaque) inside the tank bottom ring
|
3 mm x 3 mm, thickness ≥ 1 mm
|
≥99.9% | |||
Hole in the middle of the tank bottom
| 3 mm X 3 mm | ≥99.9% | |||
Can body
| Can body deformation
| Deformation: 4mm Deformation: ±1mm
| ≥99.9% | ||
Description (Please read carefully)
| This solution adopts a single-station single-lens inspection method, the main purpose of which is to control the can mouth (strict precision), large flat cans and large foreign objects. Since the subsequent processes include hot water washing and filling with nitrogen, small foreign objects can be washed away by hot water. Therefore, the detection accuracy of small foreign objects and small deformation of the can wall will be lower. | ||||
