US1629240A - Unloading device for rubber refiners - Google Patents

Description

' 1,629,240 y 1927' v R. s. TROWBRIDGE UNLOADING DEVICE FOR RUBBER REFINERS Filed Dec. 21. 1926 R. 8.7% kid 6 Patented May 17, 1927.

nor s. TROWB'RIDGE, or BUTLER, NEW JERSE .nnnonmne DEVICE Fonnnnnnnnnrrnnns.

Application filed'Decemberfil, 1926., Serial No. 156,216.

This invention relates to unloading devices for rubber refiners and more particularly to an unloading device for'the sheet forming rolls thereof. I

As is well known to those familiar with the art, in rubber refining or reclaiming apparatus, in one stage of the manufacture, the

rubber is fed between, adjacent faces of a pair of hard faced highly polished rotating rolls, whichare forced together under such pressure that'the rubber in its passage therethrough is reduced to a, sheet of .093 to .005 of an inch in thickness, which adheres-to one of the rolls. From this roll, it is separated by a knife and the sheet, thus produced carried on to the next machine for the next op: eration thereon; Under'many circumstances,

it is convenient that this sheet be :formed or four inches in diameter, An important into a roll of substantially three and one-half objectof the invention is to provide means whereby thissheet may be formed into, the roll as it leaves the knife by meansof which it. is separated from the forming roll.

A further object of the invention is to produce a device of this character such that when the roll formedfrom the sheet attains a predetermined size, it will automatic-ally break away and be discharged to a bin or conveyor, by means of which it may be transported to the machine performing the next operation. a

A further object of the inventionv is the provision of a device of this character deriving its necessary motive power from' the sheet forming the roll These and other obj construction shown in the, accompanying drawings, wherein for'the purpose of illustration is shown apreferred' embodiment of my invention and wherein I i Figure 1 is a side elevation of arubber refining machine embodying an unloading mechanism constructedin accordance with my invention Figure'2 is a section taken on the line 22 of Figure 1. V H j 1 Referring now more particularly to the drawings. the characters. R andR generally indicate the rolls of the sheetforming machine of rubber refining apparatus. Adjacent faces of these rolls move in the same direction and rubber R. is introdueedbes tween the rolls at the upper side "thereof. The rolls are forced together with such presects I attain by thesure that sheet S of rubber is produced which adheres to the surface of the roll it until it reaches a separating knife hQb-y v means of which it is peeled from the roll, The rolls it andit are supported a suit; able frame F, which likewiseserves to sups port the knife it. s 1

' In, accordance with my invention, I"-provide upon the frame I a pair of journals which are preferably adj ust abie toward and away from the axis of theioll R, as, indicated at 11, andprovide means. for mounting the ends of a roller 12, which preferably extend along the full length of the roll 1% in parallel relation thereto andslightlybe yo-nd the, ends of this roll. The extended ends of the roller 12 have secured thereto gears 13 and provide mountings Ior, plates 14.- lhe plates 14; beneath the roller 12 pro vide bearings 15 for the ends of a second roller 16, which hasgearsl? secured thereto meshing with the gears '13 of the roller 12. One or both oft-he plates 14c are provided with an extension 18 projecting out wardly from the rollv R. These,,1,extensions provide means'fo r connecting witlithe plates a bias, at present indicatedasa weight 19-, whereby the plates 14 may be caused to r0- tate about the roller 12 as an axis to force the roller 16 into contacting relation with the outer surface of the sheet .8 which, at the point of contact of the roller 16, i s still adhering tothe; surface of the roll R.

In operation ofthe apparatus,the sheet separated by the knife K, because ofits extreme thinness and flexibility bendsdowne wardly and comes into contact with the surface of the roller 12. The rollers 12 and 1.6 are so proportionedthat their gears 13 and 17 with the peripheral speed of the roller 12 is the same as the peripheralspeed of the rollR. The sheet coining intocontact with the roller 12 is thrown against the'back 7 face of the sheet S immediately in advance of the knife and is thus formed into a roll which enlarges in size until its diameter is such that its axial center passes a vertical plane including the axis of the roller 12;

At. this time, the roll formed bythe'sheet disclosed). By adjusting the roller 12 toward or away from the axis of the roll R,

the size of the roll 20 formed by the sheet which leaves the machine may be regulated within the necessary limits.

As other means might, be. provided for driving the roller 12 and since a great meas ure of the necessary rotation is provided by the contact of the separated sheet with the i outer surface of the sheet while still attached to the drum and, therefore, some other means might be provided for directing the separated sheet against the drum, I do not limit myself to the construction hereinbefore set forth except as hereinafter claimed.

I claim:-

' '1. The combination with the sheet forming roll of rubber refining apparatus and the knife for separating the sheet from the roll,

of means adjacent the roll supporting the separated sheet and directing the same toward the surface of the roll at a point ad jacentto and in advance of the knife where by the rotation of the roll serves to' rotate the separated end and form a roll there from. 1 i

2. The combination with the sheet forming roll of rubber refining apparatus and the knife for separating the sheet from the roll,

roll of rubber refining apparatus, a knife for separating the sheet from the roll, of a roll forming roller adjacent to and paralleling the sheet forming roll adjacent to and below the knife, and means for rotating said sheet forming roll.

4. The combination with the sheet forming roll of rubber refining apparatus, a knife for separating the sheet from the roll, of a roll forming roller adjacent to and paralleling the sheet forming roll adjacent to and below: the knife, and means for rotating said sheet forming roll and at substantially the same'peripheral speed as and in the copposite direction from the sheet forming roll. 7 5. The combination with the sheet forming roll of rubber refining apparatus, a knife for separating the sheet from the roll, of a roll forming roller adjacent to and paralleling the sheet forming roll adjacent to and below the knife, and means for rotating said sheet forming roll including a second roller engaging the rubber covered surface of v the sheet ing roll of rubber refining apparatus, a knife for separating the sheet from the roll, of a roll forming roller adjacent to and paralleling the sheet forming roll adjacent to and below the knife, and means for rotating saidsheet forming roll and at substan tially the same peripheral speed as and in the opposite direction from the sheet form-' ing roll-including a second roller engaging the rubber covered surface of the sheet forming roll and a driving connection between said rollers. i

7. The combination with the sheet form: ing roll of rubber refining apparatus, a knife for separating the sheet from the roll, of aroll forming roller adjacent to and parallel ing the sheet forming roll adjacent to and below the knife, means for rotating said,

sheet forming roll and means for adjusting the roller toward and away from the roll.

8. The combinationwith the sheet forming roll of rubber refining apparatus, a knife 7 for separating the sheet'from theroll, of a roll forming roller adjacent to and paralleling thesheet forming roll adjacent to and below the knife, means forrotat'ing"said sheet forming roll and-at substantially the same peripheral speed-as and inthe opposite direction from the sheet forming-roll and means for adjusting the roller toward and away from the roll. I

9. The combination with the sheet forming roll of rubber refining apparatus, a knife for separating the sheet from the roll, of a roll forming roller adjacent to and paralleling the sheet forming roll adjacent to and below the knife, means for rotating said sheet forming roll including a second roller engag ing the rubber covered surface of the sheet forming roll, a driving connection between said rollers and means for adjusting the first named roller toward and away from said roll. 1

10. The combination with the sheet forming roll of rubber refining apparatus, a knife for separating the sheet from the roll, of a roll forming roller adjacent to and paralleling the sheet forming roll adjacent to and below the knife, means for rotating said sheet forming roll and at substantially the same peripheral speed as andin the opposite direction from the sheet forming roll including a second roller engaging the rubber covered surface of the sheet forming roll, a driving connection between said rollers and means for adjusting the first named,

roller toward and away from said roll.

In testimony whereof I hereunto afiix m signature.

ROY TROVVBRIDGE.

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