Depalletizing Machine
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Zenith Packaging Machinery is a leading Chinese packaging brand. With over 15 years experience, Zenith Packaging prides itself as a global turnkey packaging solution. Provider based in China, Zenith is strategically positioned to exceed the needs of our valued clients.
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What is Depalletizing Machine
Depalletizers are robotic machines that unload (depalletize) packages or products from the pallet. The depalletizer allows the transfer of products and materials from pallets without the use of human personnel, saving thus time, money and effort. If you want to know the specifications and prices of Depalletizing Machine, please contact us!
Advantages of Depalletizing Machine
Enhanced Workplace Environment
When people do depalletizing, there is a possibility of mishaps, endangering the safety of numerous personnel. In addition, this exhausting chore may prove hazardous when handling items weighing more than 20 kg. The working environment is much more secure when this process is automated. By removing the physical handling portion of depalletizing and reducing the risk of repetitive strain injuries, automated depalletizing enhances the working conditions and safety inside a production process or plant.
Financial Efficiency
It is possible to program automated depalletizing devices to work in tandem with the production process. This programming lets the automated depalletizer unload the raw materials directly onto the manufacturing line for however many hours of the day they arrive at the production line. Additionally, there is no downtime for interruptions in production.
Lower Labor Costs
A depalletizer will do all the work. These devices hardly ever need human involvement. Semi-automatic depalletizers automatically conduct every step of the depalletizing process, except for a few simple activities like configuring controls and pressing buttons, which require an operator. By doing so, one can repurpose labor or lower labor expenses, freeing up workers to perform jobs that are too critical for machines.
Enhanced Product Quality
Less damaged goods can be achieved in a factory through automated depalletizing. As a result of the higher product quality, one will not only provide better customer service but also encounter fewer claims for damaged goods and returns.
More-Efficient Material Handling
When depalletizing manually, several things can go wrong. For instance, workers may not place boxes correctly. Accidents are more likely because human depalletizing is inconsistent. Depalletizing by machines consistently transfers stack and sort products. This results in fewer errors and a decreased risk of damage or collapse of the items.
Reduced Injuries from Repetitive Motion
Repetitive motions cause two-thirds of all workplace injuries recorded each year. The greatest strategy to prevent repetitive motion injuries is to buy equipment that either lowers or eliminates the need for employees to perform labor-intensive, repetitive jobs. For example, depalletizers can handle sorting, transporting, and stacking without people and need minimum human assistance. Machines cannot become injured through repetitive motion as people can.
Streamlined Method
Warehouses can now use a robotic depalletizing cell equipped with a state-of-the-art vision system and a suitable gripper to lift the heaviest objects, thanks to deep-learning algorithms. These changes will enhance the overall working environment for employees and offer a flexible automated remedy to the extraordinarily dynamic logistics sector.
Types of Depalletizing Machine
Semi-automatic Depalletizer
Semi-automatic depalletizing is a process that requires only one operator. The semi-automatic depalletizer is loaded by moving one layer of packaging onto the machine. The operator then raises the platform, which moves the products into the twist rinser at a speed of 50 cans per minute.
The semi-automatic depalletizer is ideal for relatively low-speed filling lines and is best suited for a single type of packaging. However, it cannot handle fragile packaging like glass.
The Semi-automatic has a maximum capacity of 3.000 cans per hour.
Can Depalletizer
The Can Depalletizer is a more automated solution for the start of your filling line. This depalletizer can be categorized as a sweep-off depalletizer. The main advantage of a sweep-off depalletizer is that it is capable of unloading many types of packaging, such as cans, cardboard, and PET. The Can Depalletizer is an automatic machine that does the work for you.
After loading the pallet into the depalletizer, the only action required is to press start. Once activated, the depalletizer will remove the top frame and move the slip sheets with its vacuum system. The slip sheets will be placed onto the slip sheet holder, and the depalletizer will sweep off two layers per minute. After the process is complete, the pallet can be unloaded from the depalletizer, and the cycle can start again.
Glass Depalletizer
The Glass Depalletizer, like the Can Depalletizer, is a more automated sweep-off solution for the start of your filling line. The biggest difference between the two is that the Glass Depalletizer can handle heavier types of packaging, such as glass.
A full pallet of glass containers can be loaded onto the roller track, which rolls the pallet into the depalletizer. After closing the door and pressing start, the Glass Depalletizer begins sweeping the glass containers into the filling system. All tier and top sheets between each layer are picked up with a vacuum holder and moved to the tier sheet holder.
How to Choose Depalletizing Machine
Depalletize Type
Before any other consideration, the first thing to take into account when purchasing a depalletizer is the type of containers you're looking to depalletize. Whether you're a soft drink company that needs to depalletize 12 ounce beverage cans or a pet food company looking to unload pet food cans, depalletizers are designed to handle several kinds of containers. Common types include aluminum cans for beverages and pet food, steel food cans, and PET bottles.
Aside from the containers themselves, the speed at which containers are depalletized is a vital consideration as well. Depalletizer speeds are measured in layers per minute; a typical rate would be five to seven layers every sixty seconds. From there, the number of containers per layer determines the rate of containers depalletized per minute. During the purchasing process, be sure to consider what kind (or kinds) of containers you'll need to depalletize, and the rate at which they'll enter the rest of the production line.
Available Footprint for a Depalletizer
For consumer packaged goods (CPG) companies and co-packers, availability of floor space is critical, and making efficient use of the space is a must. After all, a depalletizer isn't the only machine in the production line; depending on what kind of materials you're packaging, your line could include a filler, a seamer, a capper, a labeler, a case packer, a palletizer, and possibly even more equipment. The depalletizer itself may even integrate with an unwrapper or a destrapper (or both). When looking to add a depalletizer to your line, taking its footprint into consideration is a vital component of the buying process.
The available working space around the depalletizer and the flexibility of the area around its human-machine interface (HMI) are factors to look out for, too. While much of the depalletizing process is automated, human operators are still involved to some extent—namely through dunnage handling. In many cases, forklifts need to be able to drive around the machine to remove dunnage materials like pallets, top frames, and layer pads.
Expected and Unexpected Downtime
Expected downtime consists of routine procedures that occur between loads of palletized containers, the most common of which is dunnage handling. The top frames, layer pads, and pallets that hold containers in place usually accumulate on top of the depalletizer as containers are unloaded, and operators typically remove the dunnage by way of a forklift. There isn't a whole lot that CPGs can do to shorten this process, but OEMs are working to engineer innovative dunnage handling solutions.
Unexpected downtime is more difficult to control, and it tends to be caused by pallets that are out of specifications. Leaning pallets, pallets with missing containers, or pallets with layers that are otherwise askew can cause jams and faults within the machine, leading to potentially lengthy, unanticipated downtimes. There are some options to look out for that can alleviate these problems, though, one of which is pursuing a depalletizer that offers greater tolerance to layer variability (i.e., the ability to continue operating despite the presence of pallets or layers that aren't within proper specifications).
Another possibility to decrease unexpected downtime consists of finding a machine with excellent messaging and detection methods to catch faults as early as possible and prevent problems from cascading out of control. When comparing depalletizers, be sure to understand the methods each one offers to help mitigate both expected and unexpected downtime, and choose the one that best fits the operating needs of your production facility.
Ease of Operation
Looking for a depalletizer that's easy to operate may seem obvious, but what's less obvious is the features to look for that make the machine simple to use. Ease of maintenance is one aspect to take into account; is there enough space to clean the equipment and check for damage? Does the depalletizer offer easy access to machine components for replacement and lubrication? Is the machine set up for minimal operator interaction? Does dunnage need to be taken away by forklift, or does the depalletizer offer floor-level access for dunnage removal? Ease of operation comes in many forms, so be sure to pick a machine best suited to your facility and the level of experience of your operators.
Aftermarket Support
Last but certainly not least, it's crucial to purchase a depalletizer from an OEM that offers a robust, thorough system of aftermarket support. Between operator turnover, machine upgrades, HMI software updates, and more fluid operational concerns, there will always be questions you'll have about your depalletizer that will require ongoing support.
Component of Depalletizing Machine
In-Feed Conveyor
The in-feed conveyor is responsible for receiving stacked pallets and can be designed for front, back, or side in-feed configurations. This feature is essential for both floor-level and high-level depalletizers, ensuring that they accommodate various pallet entry methods.
Dispatch Conveyor
This component is responsible for transferring the unloaded goods from the pallet. It moves the items to subsequent stations in the assembly line or to a storage area.
Control Panel
Here, operators troubleshoot, adjust, or reprogram the depalletizer machine and its automatic accessory components. The PLC, which opens and closes circuits according to the machine's programming, serves as the core element of the control panel.
Empty Pallet Collector
This component is responsible for collecting empty pallets to ensure continuous operation of the depalletizer. After a pallet has been fully unloaded, the empty pallet is gathered and either stacked or transported for further collection.
Weight Checker
This equipment, which can be integrated or standalone, is used to check the weights of bagged goods as a quality assurance measure before they are stored and distributed.
Stops
These mechanical devices create lateral gaps in the row-forming area to shape the pallets correctly. Programmable logic controllers (PLCs) operate pneumatic valves and cylinders to serve as stops, regulating the orientation of the feeding pallets.
Depalletizing Station/Platform
At this station, the load is removed from the pallets. In some depalletizers, two panels keep the items together as they slide onto the offloading conveyor.
Beams
This component supports the end effector, enabling linear movement along a single axis. Motion is driven by servo motors using mechanisms such as chain and sprocket drives, rack and pinion gearing, or roller and rail systems. Beams are integral to Cartesian and gantry depalletizers.
Mast or Columns
Mounted on a fixed base, this component supports the beam or arm and end effector assembly. It allows for vertical movement through hydraulics, servo motors, or chain drives.
Arms
Typically featuring a two-link design, these mechanisms enable the end effector to rotate, extend, or fold within the horizontal plane.
Joints
These components facilitate the rotational movement of other parts within the system. Depending on the desired versatility, a depalletizer may include multiple joints.
End Effector
Also referred to as end-of-arm tools, the end effector is a critical component in robotic depalletizers. It is responsible for picking up and correctly positioning the product. It may be designed to handle various items using a single tool.
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