A Vertical Packing Machine is a vertically oriented pouch forming and filling equipment. It is mostly used for industrial packaging and processing, since it provides a more convenient and effective method of automatic packaging, saving a significant amount of time and money.
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Vertical Packing Machines come in a variety of styles. VFFS is one of them, and it combines the functions of pouch creation, filling, data printing, and accounting. With servo motor film pulling and automated bias correction during film pulling, the VFFS machine runs smoothly. The pneumatic cylinder with dependable movement is used for both horizontal and vertical sealing.
Vertical Packing Machines a superb multi-function packaging equipment for many sectors, such as snack food, sugar, shampoo, pet food, coffee, tea, yeast, feedstuff, fertilizer, and so on, due to their compact design and excellent electrical control.
The Vertical Packing Machine has been upgraded to accommodate multiple bag types. It may build a variety of pouches with the addition of additional gadget gadgets. There is a pillow pouch, gusset sachet, perforated with hang-out for shelf stick displaying, and quad seal, for example. Furthermore, the filler, also known as a filling device, is an excellent partner for this vertical form fill seal machine. Weigh filler, volumetric cup filler, auger filler, pump filler, and other similar devices.
The Vertical Packing Machine creates plastic bags and stand-up pouches from a flat roll of film while simultaneously filling and sealing the bags with goods. This packaging technology may be used to package both solids and liquids.
A Vertical Packaging Machine is often filled with a continuous flat roll of plastic film that has been labelled and the artwork is attached to the exterior or inside of the film. While plastic is the most prevalent packaging material in the food business, the technique may also be utilized to create continuous metalized foil/film, paper, and fabric product containers by adjusting the edge sealing/seaming procedures.
Vertical Packing Machines employ roll stock, which is a single sheet of film material rolled around a core. The film web refers to the continuous length of packing material. Polyethylene, cellophane laminates, foil laminates, and paper laminates are all examples of this type of material. The film roll is put on a spindle assembly in the machine's back. The film is normally taken off the roll by film transport belts, which are positioned to the side of the forming tube, which is placed at the front of the machine, while the Vertical packing machine is in operation.
An unwinding roller and tensioner are used in this mechanism. There was a long, long film that rolled in a roll and was referred to as the roll of film. The film for the Vertical packing machine is often laminated PE (polyethene), PET, paper, and aluminium foil. The roll stock film will be loaded into the VFFS machine's unwinding roller back. The film on the reels of the film pulling system is driven and pulled by servo motors. They completely complement each other and pull smoothly and dependably in continuous action.
The photo-eye will capture the deep colour tag written on the rollstock of the film after the film drawing to the spot that the printer (optional). The film will then be printed with the date and production batch code. The printer normally comes in two varieties: standard, which uses a black ribbon, and TTO, which uses a white ribbon (Thermo Transfer Overprint)
After the film has been printed, it is transferred to the bag forming. It's similar to a collar of human clothing. This bag forming produces a wide assortment of bags or pouches. Bag formers of various sizes can be used to create various sizes of bags. If different sizes of bags are to be packaged, the forming cube must be changed. It merely takes a few minutes to switch it around. The bag former features a filling function in addition to its bag-forming function. Through it, the bulk material will be poured into the bag. The bag formed is composed of stainless steel and is therefore food-safe.
The Vertical Packing Machine comes with two sets of sealing devices. The first is a vertical sealer, whereas the second is a horizontal sealer. It may create a vertical pattern with two vertical sealing jaws. When you use a single vertical sealer and push on the bag former, a flat or net pattern is created. Variable sealing patterns are possible with various types of sealers. Following the sealing of the bags, the weighted bulk items will be placed inside the bags.
There is a cut inside the horizontal sealers of the Vertical packing machine. After sealing, it slices the edge of the bag on the flat bottom. Let's move on to the next vertical packing machine activity.
A control cabinet is attached to the side of the vertical packing machine. It houses all of the electrical components. PLC, contactor, servo motors, pneumatic cylinders, solenoid valves, PLC expand mode, and low-pressure electrical components The HMI (Human-Machine Interface) is located on the cabinet control panel's outside.
The film in a Vertical packaging machine reaches the back of a long hollow conical tube known as the forming tube. When the plastic's centre is close to the tube, the film's outside edges generate flaps that wrap around the conical-forming tube. The film is pushed downward around the outside of the tube, and a vertical heat-sealing bar clamps onto the film's edges to form the "fin Seal," which bonds the film by melting the seam edges together.
A horizontal sealing bar generates the "Bottom Seal" by clamping over the bottom edge of the tube, glueing the film together, and cutting off any film below to begin the bagging process. This sealing bar can be set at a fixed height, which is referred to as an intermittent sealing procedure. A sealing bar that travels down with the bag when sealing is included in faster systems.
In a Vertical packing machine the product is either pre-measured by a multi-head weighing system or the sealed tube end is dropped onto a precision weighing platform, and the product to be bagged is distributed through the bag's long conical tube in the middle. When the gross weight of the product-filled bag is achieved, the filling stops and the horizontal sealing bar seals the top of the bag, producing the bottom of the next bag above at the same time.
This bag is then removed from the tube and sealed, ready to move on to the product boxing and shipping operations. The bag can be filled with air from a blower or an inert gas source, such as nitrogen, during the final packing process. Inflating the bag reduces the crushing of fragile articles like potato chips, while inflating with inert gas drives away oxygen and slows the growth of microorganisms that would damage the product. Other product finishes, such as hole punching for retail hanging racks, will be completed concurrently with or shortly after the "Top Seal."
Material feeding and bag/pouch cutting can be determined either by pouch length or by indexing to an eyespot (photo registration mark) detected by a visual sensor. While single web systems are common for food applications, IVD and medical device goods frequently use the twin web four-side seal system. The horizontal form-fill-seal machine, which requires more floor area than a vertical system, is closely comparable.
Blue Print Automation in association with Kiron Food Processing Technologies offers a complete Vertical Packing Machine for your Business.
Vertical form fill seal (VFFS) packaging machines are used in almost every industry today, for good reason: They are fast, economical packaging solutions that conserve valuable plant floor space.
Whether you're new to packaging machinery or already have multiple systems, chances are you're curious as to how they work. In this article, we are walking through how a vertical form fill seal machine turns a roll of packaging film into a shelf-ready finished bag.
Simplified, vertical packing machines start with a large roll of film, form it into a bag shape, fill the bag with product, and seal it, all in a vertical fashion, at speeds of up to 300 bags per minute. But there's a lot more to it than that.
Are you interested in learning more about Automatic Vertical Packing Machine? Contact us today to secure an expert consultation!
Vertical packaging machines use a single sheet of film material rolled around a core, usually referred to as rollstock. The continuous length of packaging material is referred to as the film web. This material can vary from polyethylene, cellophane laminates, foil laminates and paper laminates. The roll of film is placed on a spindle assembly at the rear of the machine.
When the VFFS packaging machine is operating, the film is usually pulled off the roll by film transport belts, which are positioned to the side of the forming tube which is located at the front of the machine. This method of transport is the most widely used. On some models, the sealing jaws themselves grip the film and draw it downward, transporting it through the packaging machine without the use of belts.
An optional motor-driven surface unwind wheel (power unwind) may be installed to drive the film roll as an assist to the driving of the two film transport belts. This option improves the unwinding process, especially when the film rolls are heavy.
During unwinding, the film is unwound from the roll and passes over a dancer arm which is a weighted pivot arm located at the rear of the VFFS packaging machine. The arm incorporates a series of rollers. As the film transports, the arm moves up and down to keep the film under tension. This ensures that the film will not wander from side to side as it is moving.
After the dancer, the film then travels through the printing unit, if one is installed. Printers may be thermal or ink-jet type. The printer places desired dates/codes on the film, or may be used to place registration marks, graphics, or logos on the film.
Once the film has passed under the printer, it travels past the registration photo-eye. The registration photo eye detects the registration mark on printed film and in turn, controls the pull-down belts in contact with the film at the forming tube. The registration photo-eye keeps the film positioned correctly so the film will be cut in the appropriate spot.
Next, the film travels past film tracking sensors that detect the position of the film as it's traveling through the packaging machine. If the sensors detect that the edge of the film shifts out of normal position, a signal is generated to move an actuator. This causes the entire film carriage to shift to one side or the other as needed to bring the edge of the film back to the correct position.
From here, the film enters a forming tube assembly. As it crests the shoulder (collar) on the forming tube, it is folded around the tube so that the end result is a length of film with the two outer edges of the film overlapping each other. This is the beginning of the bag forming process.
The forming tube can be set up to make a lap seal or fin seal. A lap seal overlaps the two outer edges of the film to create a flat seal, while a fin seal marries the insides of the two outer edge of film to create a seal that sticks out, like a fin. A lap seal is generally considered more aesthetically pleasing and uses less material than a fin seal.
A rotary encoder is placed near the shoulder (collar) of the forming tube. The moving film in contact with the encoder wheel drives it. A pulse is generated for every length of movement, and this is transferred to the PLC (programmable logic controller). The bag length setting is set on the HMI (human machine interface) screen as a number and once this setting is reached the film transport stops (On intermittent motion machines only. Continuous motion machines do not stop.)
The film is drawn down by two gear motors which drive the friction pull-down belts located on either side of the forming tube. Pull down belts that utilize vacuum suction to grip the packaging film can be substituted for friction belts if desired. Friction belts are often recommended for dusty products as they experience less wear.
Now the film will briefly pause (on intermittent motion packaging machines) so the formed bag can receive its vertical seal. The vertical seal bar, which is hot, moves forward and makes contact with the vertical overlap on the film, bonding the layers of film together.
On continuous motion VFFS packaging equipment, the vertical sealing mechanism remains in contact with the film continuously so the film does not need to stop to receive its vertical seam.
Next, a set of heated horizontal sealing jaws come together to make the top seal of one bag and the bottom seal of the next bag. For intermittent VFFS packaging machines, the film comes to a stop to receive its horizontal seal from jaws that move in an open-close motion. For continuous motion packaging machines, the jaws themselves move in up-down and open-close motions to seal the film as it is moving. Some continuous motion machines even have two sets of sealing jaws for added speed.
An option for a 'cold sealing' system is ultrasonics, often used in industries with heat-sensitive or messy products. Ultrasonic sealing uses vibrations to induce friction at a molecular level that generates heat only in the area between film layers.
While the sealing jaws are closed, the product that is being packaged is dropped down the middle of the hollow forming tube and filled into the bag. A filling apparatus like a multi-head scale or auger filler is responsible for the correct measurement and release of discrete quantities of product to be dropped into each bag. These fillers are not a standard part of a VFFS packaging machine and must be purchased in addition to the machine itself. Most businesses integrate a filler with their packaging machine.
After the product has been released into the bag, a sharp knife within the heat seal jaws moves forward and cuts the bag. The jaw opens and the packaged bag drops. This is the end of one cycle on a vertical packing machine. Depending upon the machine and bag type, VFFS equipment can complete between 30 and 300 of these cycles per minute.
The finished bag can be discharged into a receptacle or onto a conveyor and transported to downline equipment like check weighers, x-ray machines, case packing, or carton packing equipment.
Shopping for a new vertical form fill seal packaging machine doesn't have to be stressful. Download our free guide for 5 questions to ask packing machine manufacturers.
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Originally published 5/4/17, updated 4/13/18, 5/15/20
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