mobile drive conveyor belt

[Kineo]

Hello everyone,
I'm a new user, I've been working for a few months of mechanical design of handling systems, although my back ground is a little more specific in the electronic field.

I would like to ask your opinion on an implementation system that I would like to implement.

I have to make a conveyor belt, 70mm wide, 750mm long, on 30mm rollers, with max load of 10kg.

I wondered if it was possible to realize the above system with both crazy rollers, carrying out the handling with a wide head also 75mm, external to the tape, which is approached to the outer roller and thus acting like a real friction wheel movements all the way.

As an alternative to the clutch wheel I thought of replacing the tape with a chain type that I would move by pulling a tow wheel.

I would like to receive your opinion on this system and maybe if you have already seen something like that.
Obviously links to builders and components would be well accepted.
thanks in advance.

 

[meccanicamg]

Hello kineo,
we say that you can do everything with conveyor belts. I do not understand the need to have a clutch wheel or a chain system that moves two crazy rollers (of which one will always be motor roller since I impose the bike from the outside).

If you do not want to have side encumbrances, you can always use a tape with lower reference. However if the tape must be started according to an event (input signal) and you need to have the possibility to change its speed, I would say that the following configuration is the optimal:

- n°1 crazy roller
- n°1 engine roller deferred to toothed belt down
- n°1 endless screw reducer
- #1 three-phase asynchronous motor
- n°1 inverter for motor/rampe management/number of turns
(type this illustrated in the photo http://www.ggmautomazione.com/img/nastri_tappeto/aen3.jpg)

other configuration with different mechanics:

- n°2 crazy roller
- n°1 engine roller mounted on tensioning plate
- n°2 roller deferral on tensioning plate
- n°1 endless screw reducer
- #1 three-phase asynchronous motor
- n°1 inverter for motor/rampe management/number of turns

However you can always look at the sites of the tape manufacturers (top fabric) such as chiorino or habasit and you will find tensioning configurations.

the clutch wheel transmission the shock personally in any case, the chain even because of the noise as you have only 10 kg to move, is not justified use.

Good job

 

[Kineo]

Hello mechanicsgm,
thank you first for your answer.
as you have guessed the purpose is not to have side encumbrances,
In fact, the goal is to make a battery of tapes, with a very small escape.
I would like to move only the moving head, that is that I imagined as a clutch wheel, to be approached from time to time to only one of the tapes.

I did not want to extend too much in the description, but perhaps these extra details justify a little more my needs.

 

[stefanobruno]

I would like to move only the moving head, that is that I imagined as a clutch wheel, to be approached from time to time to only one of the tapes.

practically you have a mini-magnet with a mini-headed load, then yes can be justified the motorization to "horse head ", with friction roller in the head.

Says the essay: if you don't dilute plima, you dilute then. (until you understand what you have to do)

Bye.

 

[meccanicamg]

I understand the need, in fact you do not put the motors in the head because they clutter a lot, even if well places you can make head-tailed-head leaving 2 mm of space between a tape and the other.

However, it assesses the possibility to mount motors and gearboxes under the belt, there are no huge things for 10 kg.

the fact of motorizing external gives you always a clutter, a more or less complicated mechanics on each tape head... I don't know if it's really worth it. currency anyway.

 

[Kineo]

practically you have a mini-magnet with a mini-headed load, then yes can be justified the motorization to "horse head ", with friction roller in the head.

Exactly. In fact now the picture is clearer.
Do you have any examples of subhandling?
looking on google I found almost nothing.

 

[Kineo]

another thing on which I have doubts is as follows:
Could the clutch head act directly on the tape (my is in pvc) or should I mate the latter to another roller?

 

[stefanobruno]

another thing on which I have doubts is as follows:
Could the clutch head act directly on the tape (my is in pvc) or should I mate the latter to another roller?

How many surgeries do you have to do on each tape?
How much do you have to work?
I'm worried about the diameter of 30 mm, can't you increase it?
for sizing would be the case of involving a ribbon supplier, they know that features has the product they treat and can advise you to the best.

Bye.

 

[Kineo]

then not a production line is difficult to quantify, but indicatively the numbers are as follows:

tape: 20-30;

how much you have to work: h24;

the diameter of the rollers could be brought to max to 40, but I would prefer to leave it to 30mm.

according to you of what material should be covered the clutch roller that will have to act on the pvc tape?

Another fundamental parameter is the pressure force between friction roller and mad roller, which I don't know how to dimensional.

 

[MauroM]

Another fundamental parameter is the pressure force between friction roller and mad roller, which I don't know how to dimensional.

No offense but given your profession I would never have expected a phrase like this:

 

[Kineo]

No offense but given your profession I would never have expected a phrase like this:

I certainly have used improper terms and an unsuitable register.

what I meant is that, known the load on the tape, the friction coefficient pvc tape - aluminum plane, the desired feed rate,
are able to determine the torque to be applied to the mad roller.

However, having never operated with a clutch wheel, I wondered what kind of additional variables (attritis, yields etc.) I have to consider in order to move efficiently and effectively the tape avoiding slippages and getting what I expect from the theoretical point of view.