US1570592A

US1570592A - Sheet-feeding mechanism for forming machines

Info

Publication number: US1570592A
Application number: US14522A
Authority: US
Inventors: Lucian E Parker
Original assignee: Ohio Match Co
Current assignee: Ohio Match Co
Priority date: 1925-03-10
Filing date: 1925-03-10
Publication date: 1926-01-19
Anticipated expiration: 1943-01-19

Description

4 Sheets-Sheet 1 Jan. 19 1926.

Filed March 10 n M M L, W m

\ m u O (U U U u v \N N l MN M MN 0 w a (GL1 w MN A r Q Q MN MN M Q Q ME ME M N N QW Jan. 19 1926. 1,570,592 L. E. PARKER SHEET FEEDING MECHANISM FOR FORMING MACHINES Filed March 10, 1925 4 Sheets-Sheet 2 Jan. 19 1926.

I L. E. PARKER snnm FEEDING MEGHANIM FOR FORMING mcnmns 4 Sheets-Sheet 5 Filed March 10, 1925 atboz M1 Jan. 19 1926.

L.v E. PARKER snsm FEEDING MECHANISM FOR FORMING mcnmns Filed March 10, 1925 4 Sheets-Sheet 4 Patented 1m. 1a, 1926. UNITED STATES PATENT OFFICE.

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a nmaonmea 1mm 10, 1925. Serial Io. 14,522.

To allwhbm it may concern: 7

Be it known that I, Looms E. Rename, a citizen of the United States, residing at Wadsworth, in the county of Medina and State of Ohio, have invented a certain new and useful Im rovement in Sheet-Feeding Mechanism for orming Machines, of which the following is a full,clear, and exact description. 7

This invention relates to mechanism for feeding sheets of paper, cardboard, or the like from a pile or stack of same, to a machine for formin the sheets into commercial articles, such as oxes.

In the particular application of the invention herein shown, the sheets of paper or the like are fed from the stack or pile to a machine which scores, blanks, folds and pastes the paper to form match box 'shucks.

The object of the invention is to supplant hand-feeding of the forming machine with an automatic feeding device, which operates in such a manner that while one sheet is being operated upon-by the forming machine,- another sheet will be in such cooperative relation to the forming machine that upon completion of a predetermined operation of the forming machine upon the sheet last previously fed, the sheet being fed will be available for immediate introduction into the forming machine, the feed action of the automatic feed mechanism being such that the sheet being fed into'the forming machine will determine the time for commencing the feed of the next subsequent sheet.

The invention consists in a feed device for forming machines or the like,'comprising a bed adapted to receive a plurality of sheets of paper or the like in stacked relation, and means associated with said bed for feeding the sheets one at a time therefrom, means being provided in combination with the feeding means for preventing the feeding of more than one sheet at a time, and in the event of more than one sheet starting to feed, will return the additional sheet to the pile 0r stack, in combination with a forming machine having a stop member automaticallyoperated in timed relation to the operation of certain mechanism of the forming machine and against which the sheet being fed is caused to abut during this feeding movement to form a buckle in said sheet, the completion of the feed of said sheet from said feeding mechanism determining the time for commencement of the feed of the next subsequent sheet, as I will proceed now to explain and finally claim.

In the accompanym drawings illustrating the invention, m t ev several figures of which like. parts are similar] designated,

Figure 1 is a sectional lon itu inal-side elevational view of the feedlng device of my invention illustrating its association with a paper or the ike beneath these rollers. Fig.

5 is a section taken substantially on the hue machine of known construction.

5-5 of Fig. 4.' Fig. 6 is a fragmentary section taken on the line 6-6 of Referring particularly to Fig. 1, the forming machine includes the bed 1, a reciprocable head 2 which blanks out the strip or sheet, feed rollers 3, a pressure roller 4 and scoring rollers 5 and 6, respectively.

The feed rollers 3 are double diameter rollers, the portions 7 thereof being of less radius than the portions 8, whereby when the portions 7 are passing under the pressure roller 4 the will be out of contact with the sheet intro uced between the feed and pressure rollers, but when the portions 8 are brought into line with the pressure roller 4 feed action will beimparted to the sheet.

Mounted upon the shaft 9 of the feed rollers 3 is a cam 10 which cooperates with a roller 11 carried by a-vertically reciprocable frame 12-provided with a stop member 13 which extends upwardly through the table 14 of the forming machine and acts to normally prevent the passage of the sheet past it. The roller 11 is held in engagement with the cam 10 by means of a spring 15 connected with an extension 16 of the frame 12, and with a bracket 17 mounted upon the frame of the forming machine.

It will be seen that the contour of the cam 10 corresponds approximately with the contour of the feed rollers 3 so that when the portion 7 of the feed rollers is passing under the pressure roller 4,- the stop 13 will be projected u wardly throu h the table 14, but when t e portion 8 o the rollers 3 is site ends.

passing under the pressure roller 4, the stop 13 will be retracted so as to provide a clear passage for the sheet between the feed rollers 3 and pressure roller 4.

Referrin to the automatic feed mechanism, it wi 1 be seen that I provide a platform 18 upon which is stacked the pile of sheets of paper or the like a. At the end of this platform 18 nearest to the forming machine is arranged a pair of uprights 19 provided with vertically slidable bearing members 20 in which are journallcd shafts 21, 22 and 23. The shaft 21 carries a feed roller 24, having a running fit thereon, and provided with a friction surface of rubber or other suitable material 25, and having a pair of ratchets 26 fixed to it at its oppo- These ratchets are engaged by pawls 27 carried upon disks 28 keyed or pinned to the shaft 21 and turning with it. Any suitable chain and sprocket gearing or the like (not shown) maybe provided upon the end 5 of the shaft 21 for imparting rotation to the shaft, the power for driving same being derived preferably from the drive of the forming machine.

The shafts 22 and 23' carry similar

knurled rollers

29 and 29, and these shafts are geared together by chain and sprocket gearing 30, 31 and 32, whereby they are caused to turn in opposite directions in relation to their contact with the sheets fed between them. The shaft 23 is geared to the shaft 21 so as to turn with it by means of chain and sprocket gearing 33, 34 and 35. It will be seen by this arrangement that the roller 24 turning in the direction of the arrow (Figs. 1 and 3), the'roller 29 w1ll be rotated in the same direction and the roller 29 through its

gearing

30, 31 and 32 will be turned in the opposite direction in relation to the sheets being fed, as above stated.

As before stated, the bearings 20 are slidably mounted upon the uprights 19 and are connected by a

frame

36, 37, 38 supported by means of a chain 39 which runs over a pulley 40 journalled in a cross-member 41 carried at the top of the uprights 19 and thence over a sprocket 42 also journaled in the cross-member 41. The free end of the chain 39 carries a counter-balance 43 of such Weight as to admit of the roller 24 exertin feeding pressure upon the sheet of the pile of sheets with which it is in contact. Obviously, when it is desired to stop or dis continue feed of the sheets from the pile, it is merely necessary to rotatelthe shaft 44 by which the sprocket 42 is carried and thereby raise the

frame

36, 37, 38 carrying the bearings 20, so that the feed rollers will be elevated to a position out of contact with the sheets of the pile. In order that the sprocket 42 may be conveniently rotated, I provide the shaft 44 with a hand-wheel 45 and a pawl and ratchet mechanism 46, 47.

24 is in contact with the top sheet of the" "pile of sheets, and that power has been applied to the shaft 21 to drive it and the roller 24 in the direction of the arrow, Figs. 1 and 3, and that the forming machine is in operation; the rotation of the feed roller 24 will cause the topmost sheet a ofthe ile of sheets to be fed out between the

rol ers

29 and 29 and against the stop 13, as indicated in Fig. 1. Now, upon the continuation of the feed of the sheet a buckle will be formed therein between the rollers 29, 29' and the stop 13, as indicated at a and this buckle will continue to form until the rotation of the feed rollers 3 has reached the point where their portions 8 are about to engage with the sheet and press it against t e pressure roller 4. Atthis time, the stop 13 will be retracted by means of the spring 15 due to the fact that the low portion of the cam 10 has come around to position in contact with the roller 11. The portion 8 of the roller 3 now being in contact with the sheet and the stop 13 being retracted, the sheet will be immediately advanced between the scoring rollers 5 and 6 of the forming machine. Inasmuch as the speed of rotation of the rollers 5 and 6 is greater than the rate of feed imparted to the sheet by the roller 24, the buckle will be almost immediately eliminated from the sheet and it will be quickly advanced into the forming machineand quickly withdrawn from the pile. This quick withdrawal of the sheet from the pile will necessarily cause the roller 24 to rotate ata speed greater than that at which it is normally driven, and this increase in speed is permitted by the pawl and ratchet mechanism 27 and 28. l/Vhen the sheet has been completely withdrawn from the feed mechanism, the feed mechanism will immediately take up the feeding of the next sheet, thus timing the feed of the sheet with respect to the time at which the stop 13 is again projected through the table of the forming machine, so that when the next sheet reaches the point at which the stop 13 is located, the stop will be in position to prevent its further advance. .lVhen the sheet first fedhas passed between the rollers 3 and 4 and has been scored by the rollers 5 and 6, it is caught up by the feed rollers 48 and advanced into the forming machine and is pulled completely away from the rollers 5 and 6, and this operation is so timed with respect to the rotation of the rollers 3 that when the portion 7 of these rollers comes to a position beneath the roller 4 the sheet will have been completely withdrawn from between the rollers 3 and 4 and the sto 13 will be free to rise through the table un er the influence of the cam 10, and will stop the advance of the next sheet fed.

It will thus be seen that my feed mechanism simulates in all respects hand-feeding of a forming machine of this character, for the reason that, as in hand-feeding, there is always a sheet ready to be projected against the stop 13 as soon asthe sheet previously fed is withdrawn from the point at which the stop rises. Asjust above stated, this readiness of the subsequent sheet is provided for in the timing of its feed by the withdrawal of the previous sheet when its buckle has been taken up.

If, due to friction between the sheets of paper or cardboard in the pile, more than one sheet should be fed at a time under the influence of the roller 24, the additional sheet or sheets would be restored to the ile by the roller 29' which, as hereinbe ore pointed out, rotates in a direction opposite to the direction of the feed of the paper.

Various changes are contemplated as within the spirit of the invention and the scope of the following claims.

What I claim is 1. The combination with a forming machine, including as essential elements in its construction a forming mechanism, feed rollers and a stop member actuated in timed relation to the operation of the forming mechanism, of a sheet feeding mechanism for feedin sheets separately to said feed rollers, inc uding means to retain a pile of sheets, a feed roller arranged for cooperation with said pile of sheets and in contact with one of same, means for imparting rotation to the feed roller of the sheet feeding mechanism to feed the sheet in contact therewith ofl' of the pile of sheets and against the stop of the forming machine and to continue the feed thereof after contact with said stop, and means embodied as a part of the forming machine for intermittently withdrawing said stop out of sheet engaging position to permit introduction of the sheet into the forming machine by the feed rollers thereof, the feeding of the sheet into the forming machine by the feed rollers thereof timing the feed by the feed roller of the sheet feedinglmechanism of the sheet next adjacent to t at just fed.

2. The combination with a forming machine, including as essential elements in its construction a forming mechanism, feed rollers and a stop member actuated in timed relation to the operation of the forming mechanism, of a sheet feeding mechanism for feedin sheets separately to said feed rollers, inc uding means to retain a pile of sheets, a-feed roller arranged for cooperation with said pile of sheets and in contact with one of same, means for imparting constant rotation to'the feed roller of the sheet feeding mechanism to feed the sheet in contact therewith off of the pile of sheets and against the. stop of the forming machine and to continue the feed thereof after conta'ct'with said stop, and means embodied asa part of the forming machine for intermittently withdrawing said stop out of sheet engaging osition to permit introduction of the sheet into the forming machine by the feed rollers thereof at a speed greater than that induced by the feed roller of the feeding machine, the feeding of the sheet into the formin machine by the feed rollers thereof timlng the feed by the feed roller of the sheet feeding mechanism of the sheet next adjacent to that just fed.

3. The combination with a forming machine, including as essential elements in its construction a forming mechanism, feed rollers and a stop member actuated in timed relation to the operation of the forming mechanism, of a sheet feeding mechanism for feeding sheets separately to said feed rollers, including means to retain a pile of sheets, a feed roller arranged for cooperation with said pile of sheets and in contact with one of same, means for imparting constant rotation to the feed roller of the sheet feeding mechanism to feed the sheet in contact therewith off of the pile of sheets and against the stop of the forming machine and to continue the feed thereof after contact with said stop to form a buckle in the sheet, and means embodied as a part of the forming machine for intermittently withdrawing said stop out of sheet enga ing position to permit introduction of the s eet into the forming machine by the feed rollers thereof at a speed greater than that induced by the feed roller of the feeding machine, the feeding of the sheet into the forming machine by the feed rollers thereof eliminatg said buckle and thereby timing the feed by the feed roller of the sheet feeding mechanism of the sheet next adjacent to that just fed. 7

In testimon whereof I have hereunto set my hand t s 9th day of March A. D. 1925.

LUCIAN E. PARKER.