TRANSFER BUFFER UNITS

Linear vibrators

Our linear vibrators

Linear vibrators for guides

3d_e-03

Linear vibrators for hoppers

linear vibrators hoppers

Linear vibrator + guide

linear guide vibrator

In the industry, there is often the need for transporting products by means of vibrating conveyors powered by electromagnetic vibrators.

Linear vibrators: The performance

The linear vibrators or linear drivers, also called Transfer buffer units, are positioned after the vibratory bowl feeders and their incorporation is necessary or advisable in most applications. The linear vibrator is the linking element between the Selection Unit and the Receiving Station or process line. In addition, it regulates the variable speed flow of the Selection Unit and ensures the presence of the part available in the Receiving Station, as required by the sequence of the automatism associated with the machine or point of work supplied. On the other hand, it allows to define a linear speed for advancing the positioned parts, as well as to control the starting and stopping the vibratory bowl feeder, incorporating a saturation sensor.

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The Transfer buffer unit is comprised of a linear vibrator joined to a guide, also known as channel, along which the previously positioned parts advance, managed by a controller.

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Criteria for choosing linear vibrators

In these units the electromagnetic vibrator is the driving element which moves the parts for them to advance. It consists of a unit made up by two elastically joined masses (active mass and reactive mass) and one or more electromagnets.

A specific vibrator model is designed for a range of applications and is bounded within certain limits. Several criteria should be considered when choosing the type of vibrator, among which, the length (greater length for greater speed) and the width of the linear vibrator, which is related to the torsion. One should also consider the relationship of masses as the vibrator is a unit formed by two masses joined together by springs, and elastically isolated from the outside. The lower mass (reactive) is, in general, between 2 and 3 times heavier than the upper (active: aluminium plate + guide). The vibration amplitude and linear speed are inversely proportional to the masses. The reactive mass, therefore, has less amplitude and provides less linear speed.

Another point to consider is the guide, which must be sufficiently rigid to vibrate in unison with the aluminium plate and to not acquire a vibration of its own that could interfere with that of the vibratory system. And finally, consideration will be given to the vibrator’s installed power, absorbed by different causes, to meet all the features.

Linear vibrator models

At TAD we have the widest range of vibrators available on the market including the models VL-30, VL-60, VL-70 and VL-80, which enables us to cover the entire spectrum of implementations inherent to our activity. For example, we manufacture special straight vibrators with multiples channels for ensuring high frequency rates are maintained. The vibratory linear feeder unit model used in each application is defined based on the geometry and the position of the part to be transported.

These equipment units always provide an efficient, reliable and cost-effective solution, with an almost unlimited life, as their components of highly robust.

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linear vibrators
linear vibrators

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