During the industrial production process there is often a need for storing products using vibratory hoppers powered by electromagnetic vibrators. These elements are used in all industrial sectors, including automotive, food, pharmaceutical, cosmetic or mechanical sectors, among others.
In a feeding system, the vibratory hopper, also called Autonomy Unit, is located above the vibratory bowl feeder and its incorporation is advisable in many applications because it is the autonomy element that allows to store the parts and doses them to the vibratory bowl feeder. It also ensures the presence of parts in the bowl, if the latter does not have sufficient capacity of its own in order to house the amount of parts equivalent to the desired autonomy time. In some applications, it is actually essential due to the type of product to feed, particularly in so far as the weight of the load.
A vibrating storage hopper consists of an in-line vibrator and a hopper or tray in stainless steel, managed by an electronic unit regulating the amplitude. Its function is to store, eject and dose bulk parts, according to a signal that it received intermittently from the vibratory bowl feeder.
The choice of a hopper model depends on several factors inherent to the parts. On the one hand, based on the type, dimensions and weight of the parts to be transported and, on the other hand, based on the autonomy time or storage capacity required by the client.
At TAD we have developed two types of vibratory autonomy units: one comprised of a vibrator and a tray or static hopper (VC unit), with capacities that range from 1 to 50 dm³ and another comprised of a vibrator and a tray-crate or dynamic hopper (VT unit), with capacities ranging from 25 to 400 dm³, especially indicated for heavy parts.
At TAD we have a wide range of rectilinear vibrators for vibratory storage hoppers with the models VD-10, VD-20, VD-30, VD-60 and VD-70, which enables us to cover the entire spectrum of implementations inherent to our activity.
The design of the hopper must allow for its loading in conditions which will not harm the parts it should contain and ensure a regular and smooth dispensing of these parts, based on the action of gravity, preferably, without the possibility of wedging by pressure.
The positioning of the parts above the upper level of the vibratory feeder bowl penalises its incorporation in cases in which the regulations of the companies are governed by ergonomics, given that their normal height for refilling is 1,400 mm. In this case, it is advisable to incorporate an elevator-conveyor that will carry out the same function but with loading at a lower level.
TAD vibratory hoppers are robust and reliable, with high spec finishes, and the parts in contact with the pieces are made using construction materials suitable for the pharmaceutical and food industries.
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