CN1175237A

CN1175237A - Apparatus for feeding sheet material

Info

Publication number: CN1175237A
Application number: CN95197545A
Authority: CN
Inventors: 约翰·安东尼·沙利文
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-21
Filing date: 1995-09-05
Publication date: 1998-03-04
Also published as: GB9505616D0; BR9510535A; WO1996029269A1; DE69508439T2; AU3395895A; MX9707163A; CA2213447A1; DE69508439D1; RU2134228C1; KR19980701992A; JPH11502182A; EP0815045B1; EP0815045A1; AU691655B2

Abstract

There is disclosed apparatus for feeding sheet material comprising a feed table (10) having a gate (11) and upon which the sheets may be stacked against the gate which allows only the lowermost sheet to pass therebeneath, a bed (13) or rollers (14) within the surface of the table which may be rotatably driven to advance the lowermost sheet beneath the gate into the nip of take-up rolls and means to allow the rollers to free-wheel once the lowermost sheet is being advanced by said take-up rolls.

Description

Apparatus for feeding sheet material

The present invention relates to apparatus for feeding sheet material, especially but not merely relate to watt ridge cardboard that is used for chest and carboard process industry and the feed arrangement of mill bristol.

Say that generally the thin plate that becomes to pile up neatly heads on gate and is placed on the feeding platform, this gate only allows the thin plate of the bottom to be taken in the roll gap that rolls roller to reception under the effect of reciprocal pull of vacuum cover, feeding roller or throwing machine.Such feed apparatus must very accurately be controlled, but even so, the feeding mistake also happens occasionally.

I own together do not authorize that the solution to these problems has proposed a suggestion among the UK Patent Application NO.9326089.1, but it relates to the return motion of whole roller platform.This energy utilize aspect efficient not high, and the thin plate size had certain limitation.

The present invention proposes a kind of apparatus for feeding sheet material, and this device comprises the feeding platform with gate, and thin plate can head on the gate stacking thereon, and gate only allows the thin plate of the bottom by passing through under it; The roller platform that roller constitutes, it is positioned within the surface of feeding platform, can be driven to rotate so that the thin plate of the bottom moved forwardly under gate to accept to roll in the roll gap of roller; When rolling the roller reach with bottom thin plate in case by described acceptance, the device that roller is dallied.

Roller is equipped with the pillar power-transfer clutch, and the thin plate that can be fed less than the speed reach of accepting to roll roller.

Pull of vacuum can act under roller, so that the thin plate of the bottom is attracted downwards and peak at herein.

Roller is partitioned into, and makes the thin plate of the bottom can hang lid to provide the suitable area of contact between thin plate and roller.

The present invention will become more clear by following description taken in conjunction with the accompanying drawings, and this illustrates only by way of example, and a form implementing apparatus for feeding sheet material has been described.

Summary of drawings

Fig. 1 is the lateral plan of device; With

Fig. 2 is the device cross sectional drawing along Fig. 1 II-II line.

Now please refer to accompanying drawing, can see, this device comprises feeding platform 10, and it is placed thereon that the stacking of thin plate S can head on gate 11, has only the thin plate of the bottom in the stacking to be passed through for 11 times by gate.

The roller platform 13 that is positioned at roller 14 formations within the platform surface rolls the roll gap of roller 12 by moving forwardly into acceptance under the gate 11 continuously with thin plate.

Roller is installed within the chamber 15, and pull of vacuum acts on it, so that the thin plate of the bottom is attracted downwards and peak at herein.Spacing between the roller 14 is hanged thin plate and is covered between them to increase area of contact.

Roller is driven rotation with the speed of rolling roller 12 less than acceptance by the direction of arrow X.In case thin plate is rolled roller 12 and moves forward, roller 14 is idle running just because roller 14 they inside circumference and their axle drive shafts 16 between have the pillar power-transfer clutch.

In this example, roller 14 is driven belt 17 rotationally and interconnects, a roller 14 is driven by belt 18, belt 18 itself then is with 19 drivings by toothed, this is toothed with 19 quilts, 20 crank motions of arm with space rate (being generally the speed that is used for the throwing machine, in order to the quickening remodeling) running of being in step with.When the reverse stroke of arm 20, roller 14 is not driven at reversing sense, because they have been in their idling conditions at that time.

It will be appreciated that the present invention is not limited in above-mentioned example, only otherwise depart from the determined scope of claims, to the skilled person of present technique, many schemes all can produce.

Like this, for example, roller 14 can be by electro-motor in addition intermittently or continuous driving, though this is not best, because in the continuous drive situation, before last thin plate leaves gate 11, between the thin plate that backward roller and next piece are fed, some slips will be arranged.

Claims

1. apparatus for feeding sheet material, described device comprises the feeding platform with gate, and thin plate can head on the gate stacking on the feeding platform, and gate only allows the thin plate of the bottom by passing through under it; The roller platform that roller constitutes, it is positioned within the feeding platform surface, and can be driven to rotate so that the thin plate of the bottom moved forwardly under gate and accept to roll in the roll gap of roller; When rolling the roller reach with bottom thin plate in case by described acceptance, the device that roller is dallied.

2. device as claimed in claim 1 is characterized in that roller is equipped with the pillar power-transfer clutch, and the thin plate to be fed less than the speed reach of accepting to roll roller.

3. as the device of claim 1 or 2, it is characterized in that pull of vacuum is acted under roller, downwards so that the thin plate of the bottom is attracted and peak at herein.

4. as the device of arbitrary claim in the claim 1 to 3, it is characterized in that roller is partitioned into, make the thin plate of the bottom can hang lid so that have enough area of contact between thin plate and the roller.

5. the device of arbitrary claim as described above is characterized in that roller is driven belt rotationally and interconnects, roller by another by driving with the be in step with reciprocating rotating band of arm of running of space rate.

6. device as claimed in claim 5 is characterized in that described another rotating band is toothed.

7. as the device of arbitrary claim in the claim 1 to 4, it is characterized in that roller is driven by electro-motor.

8. device as claimed in claim 7 is characterized in that roller is intermittently driven.

9. device as claimed in claim 7 is characterized in that roller is driven continuously.