These days, producers all over the world are rethinking and replicating these devices in order to satisfy the changing demands of the sector. Some well-known manufacturers have made unique modifications, customizing multi-head weighers for particular uses and features. Multi-head weighers for frozen goods, meats, caviar, noodles, and other items are a few examples.
This tutorial examines multi-head scale operation, applications, and factors to take into account when selecting a Multihead Weigher packing machine from a technical standpoint. The information in this article will be helpful to anyone considering their first packaging automation project employing multi-head weighers or beginning with semi-automatic packaging weighing systems.
Multihead Weigher packing machine components
A multi-head weigher is a sophisticated weighing system made up of several essential parts, each having a unique name and main function. The primary parts of a multi-head weigher and their purposes are as follows:
1. The Intake Funnel
The intake funnel is the point of entry when goods or raw materials are fed from the feeding machine into the Multihead Weigher packing machine. It facilitates the movement of goods in the direction of the weighing apparatus.
2. The top cone
The top cone, which is positioned above the linear vibrators, aids in uniformly dispersing the product throughout the feed hoppers and linear vibrators.
3. Vibrators that are linear:
Vibratory conveyors known as linear vibrators aid in the consistent and regulated flow of goods into the feed hoppers.
4. Hopper feed:
Products are gathered and stored in feed hoppers prior to being fed into weight hoppers. Each pair of feed hoppers is matched with a linear vibrator.
5. Hopper weights:
One of the main parts in charge of product weighing is the weight hopper, which measures the weight of the items within. To accommodate varying product weights, they are available in 1.8-liter, 3-liter, and even bigger capacities.
6. Actuator
The measured product can be released because the actuator regulates the opening and shutting of the gates at the bottom of the weight hoppers.
7. Chute for discharge:
The discharge chute, which is situated beneath the weight hoppers, guides the weighted product to the following packing step.
8. Timing hopper:
A timing hopper is a type of intermediate hopper that helps improve synchronization with the packing process by briefly holding the weighted product until it is ready to be released.
9. Touch screen:
The Multihead Weigher packing machine’s user interface for monitoring and control. The touch screen allows operators to watch the weighing process, change parameters, and make adjustments.
10. The main frame
the primary structural structure that gives the Multihead Weigher packing machine stability and stiffness by holding and supporting all of its parts.
Together, these elements guarantee precise and effective product weighing and packing on a production line.
A Multihead Weigher packing machine: How Does It Operate?
The product is fed into the distribution cone located in the center above the weighing system when using a Multihead Weigher packing machine. The product is subsequently transported outward in a radial pattern to the prefeed hoppers, which are arranged in a circle, and finally to the weigh hoppers below. A computer selects the mixture that is closest to the desired weight from a number of partial quantities and causes it to be poured out simultaneously. The storage and weighing containers are then promptly refilled after being emptied.
The operation of a Multihead Weigher packing machine is explained in detail below:
Step 1: Infeed of Materials:
Usually, a feeding system is used to feed loose or bulk goods into the Multihead Weigher packing machine. The materials are transported to the top of the Multihead Weigher packing machine by a bucket elevator or a slanted conveyor.
Step 2: Spread of the Product:
The product is subsequently discharged into the weight hopper after being uniformly divided among many separate feed hoppers or buckets. Numerous techniques, including revolving cones, vibrating pans, and other dispersion systems, are used to accomplish this.
Step 3: Procedure for Weighing:
The weight of the product within each weight hopper is continually measured by a load cell or weighing sensor. The system continually updates the weight readings as the product is poured into the weigh hoppers.
Step 4: Calculating Combinations:
To get the desired overall weight, the Multihead Weigher packing machine’s computerized control system computes different combinations of the separate weigh hopper weights. Finding a combination that most accurately satisfies the given weight criterion is the aim.
Step 5: Release of the Product:
When the best combination is found, the machine simultaneously opens the gates or valves of the chosen weigh hoppers, letting the goods drop onto the downstream conveyors or packing equipment.
Step 6: Resupply and Ongoing Function:
When the goods are discharged from the weight hoppers following a weighing operation, the empty weigh hoppers are refilled with the extra batch product, and the cycle is repeated continuously. This guarantees a steady and effective flow of weighted goods.
Remarks and Modifications:
The software on the Multihead Weigher packing machine continually checks and modifies settings to maximize precision. Feedback systems increase the overall efficiency of the packaging process by allowing the system to be adjusted based on real-time data.