US2067300A - Combining machine - Google Patents

Description

Jam. I12, W37. c. c. WILLIS ET AL COMBINING MACHINE Filed Aug. 27, 1955 8 Sheets-Sheet l ATTORNEY Jan. 12, 193? 'C. C. WILLIS ET AL COMBINING MACHINE Filed Aug. 27, 1955 a sheets-sheet 2 ATTORNEY Ban. I2, 1937. c. c. WILLIS El AL COMBINING MACHINE Filed Aug. 27, 1955 8 Sheets-Sheet 3 INVE O 5 1% ATTORNEY jam. 12, 1937. v c. c. WILLIS ET AL 2,067,300 r 0 ING MAC INE Jan. 12, 1937, c. c. WILLIS ET AL 2,067,300

COMBINING MACHINE Filed Aug. 27, 1935 8 Sheets-Sheet 5 ATTORNEY Jan. 12, 1937. c. c. WILLIS El AL COMBINING MACHINE Filed Aug. 27, 1955 8 Sheets-Sheet 6 QINVENTO M a.

5 i?- BY WM ATTORNEY Jan. 12, 1937. c. 'c. WILLIS ET AL COMBINING MACHINE Filed Aug. 27, 1935 8 Sheets-Sheet 7 lNvEllyzgRs BY 94km ATTORNEY 8 Sheets-Sheet 8 Illlllllllll IIIIIIIII I IIII c. c. WILLIS El AL COMBINING MACHINE Filed Aug. 27, 1935 Jan. 12, 1937.

Patented Jan. 12, 1937 umrao STATES PATENT OFFICE COMBINING MACHINE Charles C. Willis, Bound Brook, and Sterling W. Warner, Somerville, N. .L, assignors to John Waldron Corporation, New Brunswick, N. J., a corporation of New Jersey Application August 27, 1935, Serial No. 38,066

Claims. (Cl. 164-68) This invention relates to combining machines. ill, of Figure 12, looking in the direction of the In various industries cardboard, strawboard, or arrows. other forms of boards are covered with paper or Figure 11 is a detail view of the cutter control the like. It has been generally customary to mechanism and gearing.

5 cover one side and then run the board again Figure 12 is a view of Figure 11, along the 5 through the machine to cover both sides of the line l2, 12, looking in the direction of the arrows. board. In covering the cardboard and the like Figure 13 is a longitudinal sectional view of many difllculties occur. When a web of lining or the cutter control valve. covering-paper has the glue applied there is a Figure 14 is a cross sectional view of Figure 13 stretch to the paper which makes it diflicult along the line I4, I4. 10 for it to be applied smoothly to the board. The Figure 15 is a detail view of the roll adjustcutting of the wet webof covering paper also ment mechanism.

has difficulties in that considerable wastage may Figure 16 is a cross sectional view partly in elebe involved. Again difliculties are occasioned by vation along the line l6, it, of Figure 15.

15 the variation in the thickness of the cardboards In carrying out my invention, I provide a frame 5 that are required to be covered. l with a table 2 upon which the boxboard stock One of the objects of this inventionis to prois fed. Feed rolls 3, 3', 4, 4', deliver the cardvide a machine for combining a sheet of paper board stock between linings 5, 5. Webs 5 and with boxboard, cardboard, or the like. 5' coming from unwind rolls 6, 6', passing over 20 Another object of the invention is to simultaidler rolls 1, and t over Summing 20 neously combine two sheets of paper with boxgluing rolls 8, 8'. The method of applying board and the like covering two sides thereof. the glue, paste or other adhering material is Still another object of the invention is to prowell known in the art and therefore need not vide a machine operating at relatively high speed be further described. The webs 5, 5', then and with small wastage for the combining of pass over a particular form of straightening or 25 two sheets of paper with boxboard or the like. ironing roll as shown in detail in Figures 2, 3, 4, Other objects will appear more fully herein- 5 and 6. Rolls 9 smooth out the gummed paper after. so that it may be applied evenly and without Referring to the drawings: wrinkles. The rolls 9 are cylindrical and are Figure 1a. is a longitudinal side elevation of a formed exteriorly 0f Strips of smooth meta-1110 30 portion of a device embodying the principles of elements of difierent lengths in order that the our invention. junctionof the elements do not fall in the same Figure 1b is a longitudinal view in side elevaplane. These metallic elements ID are secured tion of the balance of a device embodying the to cylinder heads H by wedge shaped lugs l2 principles of our invention. moving in corresponding wedge shaped channel 35 Figure 2 is a sectional view of the web smooth- I2 in the surface of cylinder heads I I. On each ing rolls showing cam l6 as an adjustable cam. of said metallic elements or segments iii are Figure 3 is a view in elevation of the web secured, by bolts l4, collar bearings l5. smoothing roll with parts broken off. In this view The bearings l5 are adapted to bear against a cam I6 is shown as aflxed cam. I cam or disk Hi. This cam or disk I6 is at an Figure 4 is a sectional view of Figure 2 along angle to the axis of roll 9 so that when cylinder 9 the line 9, 6, looking in the direction of the is rotated the segments iii are caused to move arrows. toward and from the segment on the same line Figure 5 is a sectional view of Figure 2 along creating a sidewise movement of the segments 5 the line 5, 5, looking in the direction of the away from each other during part of the rota- 5 arrows. tion and toward each other during the balance Figure 6 is a view in elevation of the holding of the rotation. Adjustment screws I! are adaptpin securing the core 91 to the cam disk I6. ed to vary the extent of the motion. Two pins Figure 7 is a view in elevation of the cutter 98 secure disk I6 to core 91. By such device the roll. ..moistened paper is smoothed and stretched so 50 Figure 8 is a detail view of the cutter knife that when the webs 5, 5', are applied by applying channel and roll. rolls 8!), 8|, to the board stock the covering paper Figure 9 is a sectional view of, the cutter rolls. is smooth and without wrinkles. The stock after Figure 10 is a diagrammatic sectional view of it is covered then passes between rolls 80, BI.

the cutter control mechanism along the line It], These rolls may be heated or a drying medium, 59

such as heated air, may be blown upon the' web or the entire machine may be in a conditioned drying atmosphere. After the webs have been i of the circumference. The blade 22 may be recombined and dried they reach the rear of the machine where the cutting of the webs 5J5, takes place. At this time the web coverings may or may not be completely dried out and-the material is travelling at a relatively high rate of speed making it impossible to cut the webs manually. In addition, the time element practically eliminates all forms of shear cutters with the exception of a roll cutter. The question of wastage prevents the use of a straight edge rotary type of cutter, which to avoid excessive vibration or jar, must be placed at a predetermined angle on the roll, the angle being dependent upon the speed of travel of the material, and therefore any change in the speed of travel prevents the use of such knife. In addition, the wastage of the material in the cutting is important. Also in order to make a clean cut the edge of the material should be supported. With'a rotating knife any form of support must permit the entrance and egress of the knife and with the usual serrated knife there is too little support for the material causing tearing to take place as the material is forced into the slot without separation or cutting. I propose therefore to provide a special form of cutting mechanism as shown in detail in Figures 7, 8 and 9. This cutting mechanism comprises cylinder 26 mounted on shaft 28 and has a saw tooth cutter knife 22 inserted radially in cylinder 20 and protruding beyond the surface movably secured therein such as-by a wedge block 23 with securing bolts 26 threaded into roll 20. A rubber grip may be inserted back of the blade 22. The purpose of the rubber grip 25 is to firmly hold the material as it is cut by knife 22 against the lower roll 26. Lower roll 25 is grooved to accommodate two adjacent blocks 27!, 23, which are screwed to roll 26 by screws 29. Blocks 2?, 28, have a channel 39 therebetween. The walls of the channel formed in serrated grooves corresponding to the teeth of the cutter 22 in shape and size but located so that the top of each tooth of the blocks 21!, 2B, correspond in position to the bottom of each tooth of serrated blade thereby permitting of a complete support of webs 5, 6, during the cutting operation. By means of such support a clean out can be obtained. In addition, as blade 22 is a straight blade there is a minimum of wastage in the cut made. The form of channel 30 produces a true shearing action in connection with the teeth of cutter 22. .Also a plurality of webs may be out since the supporting elements, blocks 21, 28, support the lower and upper webs of material during the cutting operation and the minimum clearance of the teeth of cutter 22 prevents the webs 5, 5' from being pressed into slot 30 as only the blade itself is. permitted to enter'to shear through the travelling webs.

Such construction requires the minimum of mass for operation and is therefore particularly adapted for use in connection with the automatic cutting of webs of material where the control n 26, thereby securing the possibility of continuous or intermittent rotation of the cutting roll. If they are driven frictionally any form of mechanism restraining their rotation with a quick release immediately starts rotation of the rolls and predetermined cutting. Such a mechanism enables the goods to be made in predetermined different lengths with accurate cutting of the web between the cardboard lengths of boxboard stock. With this type of cutting mechanism no vibration or jar takes place as is the case where cutters cut through a web of material against a hard surface. With this type of cutter there is no lifting of the cutter roll by the material.

The lightness of the mass of the cutting mechanism reduces the power consumption to the minimum for the particular operation.

A proper control for the cutter mechanism required. As the pasting portion of the machine operates at a relatively high linear speed, the problem of the intermittent cutting without too much wastage is rather dimcult. The sheets of cardboard should be as close together as possible since the further they are apart the greater the wastage and in the case of double combining the wastage is double, hence quick action and of a positive type must be the characteristic of the control mechanism. The accurate synchronization of the cutting of the webs with respect to each boxboard makes it desirable to have the' boxboard sheets themselves automatically initiate the control mechanism.

Referring particularly to Figure 10 and Figures 12 to is inclusive:

The cardboard sheets are spaced to permit the A drops in the depression between the boxboard sheets since the web 5 no longer supports it on the same level. The material is travelling at a relatively high linear velocity necessitating the correct timing of the starting of the cutters to function in order that they may cut the webs when the end of the cardboard stock reaches the cutter 22. Roll 3| is carried by arms 32 of hell crank lever 33 which latter is supported by shaft 34. Arm 85 of bell crank lever 33 carries adjacent its end adjustment screw 36. The latter is adapted to trip lever 31 which is pivoted at 38 and carries at its other end a seat 39 which covers outlet 40 of pneumatic line 4|. A light tension spring 42 normally maintains seat 38 over opening 40. The uncovering of opening 40 to the atmosphere initiates the action of pneumatic valve 43. The latter consists of a valve bar and housing 44 which has valve guides 45, 48. Valve 41 is limited in movement between valve seats 48, 49. To the lower end of valve stem 50 is screwed a valve base 5i below which is a flexible air tight diaphragm 52 secured over ,chamber 53 in valve housing 44'. A bellows 54 .is formed by a movable board 55 lunged at 56 to valve housing 44'. The bellows 54 has the usual air tight rubber cloth or other flexible material covering 51. The bellows 54 operateagainst the tension of spring 58. Chamber 59, being a vacuum chamber, is exhausted in any well known ing 40 atmospheric pressure is admitted through 76 pneumatic line 4| to chamber 53. Pressure is thereby exerted against diaphragm 52 which pressure is transmitted through valve base 5i raising the base and moving valve 41 thereby opening chamber 62 to suction action (chamber 59) and causing the movement of board 55 to actuate lever 60 to release the cutting rolls 20, 26, to permit them to rotate. Rolls 20, 26, are of a predetermined size whereby when they have completed 0. revolution the knives cut the material at a predetermined point between the cardboard stock. After roll 0| rides up upon the next cardboard sheet covered by web 5, spring 42 reseats seat 39 over opening 40. The closing of pneumatic line 4i permits the bleeding of air through small opening 6i into chamber 59 causing a balance of pressure whereby valve 41 shifts from seat 48 to seat 49 admitting atmospheric air through passage 62 to bellows 54 thereby actuating rocking lever 60 about its pivot 63 causing its latch end 64 to again engage cam 14 to maintain rolls 20, 26, from rotation. Hole 6| quickly equalizes the pressures in chambers 59 and 53 to permit quick return of valve 41 when the pneumatic line I is closed. 1

Cutting roll 20 is keyed to shaft 2 I and cutting roll 26 is keyed to shaft 65. Shafts 2I and 65 are conriected by gears IN and I02. Gear 66 and cam 61 are likewise keyed on shaft 65. Stationary shaft 12 carries gear I03 which is free to rotate. One-half of friction clutch 13 is secured to gear I03. The other half 13 has a long hub on which is mounted g'ear segment 69, cam 10, cam I00 and clutch throwout collar I04.

.Gear 11 is free to rotate on stationary shaft I05.

One-half of friction clutch 16 is mounted on hub of gear 11. The other half 16' of friction clutch 16 has a round hub on which is mounted cam 19, cam I06 and cam 15. The two halves of clutch 16 are held together by means of compression spring I01. Clutch throwout yoke 19 normally holds the two halves of clutch 13 apart by action of wedge end of slide 18. One-half of clutches 16 and 13 are rotated by means of gear train IIO, I09, III, 11. When end of lever 60engages in notch of cam 16, clutch 16' with cams 14, I06 and 15, are held stationary. Clutch 13' with gear segment 69, cams and. I00, are also held stationary by means of lever II2 engaging in notch of cam I00 cutting rolls 20 and 26 are held in their predetermined position by means of cams 10 and 61 interlocking. When lever 60 releases cam 16 by action of pneumatic 50, cams 10, I06 and rotate because the two halves of friction clutch 16 are in contact by action of spring I01. When cam I06 rotates cam I00 is released through the action of lever H9, link I I6 and lever H2, at the same time permitting wedge 18 to move downward by the rotation of cam 15 which in turn releases yoke 19 engaging clutch 13 and 13' by action of compression spring I08. Gear segment 69 and cam 10 now rotate which in turn rotates shaft 65 by the meshing of gear segment 69 with gear 66 and the releasing of cam 61 by cam 10. As shafts 65 and 2| are connected by gears I02 and IN, cutting rolls 26 and rotate until again stopped through the re-engaging of lever 60 in notch of cam 16'. The rolls are then in their predetermined position preparatory to a new movement being initiated by the unseating of 39 over opening 60.

The boxboard or cardboard stock varies in thickness and hence it is necessary to have some means of adjustment to accommodate the machine for the different thicknesses.

Referring to Figures la, lb, 15, 16, rolls 80 can be adjusted with respect to the horizontal plane and for parallelism with rolls 6| by means of adjustment screws 62, rolls 80 having shafts 83 journaled in bearing blocks 84 sliding in frame I, adjustment screws 82 being threaded through bearing blocks and bearing against cam block 05. This is the usual form of adjustment. In addition, according to this invention, all the rolls 80 may be simultaneously raised or lowered to accommodate the different thickness of boxboard or cardboard stock thereby eliminating the necessity of adjusting each roll every time there is a different run of stock. To make the second adjustment handwheel 86 is rotated'in either direction as desired. Handwheel 86 is secured to shaft 81 carrying gear 86 which meshes with gear 69 on shaft 90. The latter carries worm 9| which drives wormwheel 92. The rotation of wormwheel 92 rocks yoke 93 either to the right or left in accordance with the movement of handwheel 86 and its train of gearing. The movement of yoke 93 is transmitted to roller 94 which is secured to sliding rods 95. Rods 95 carry wedges 96 on which ride cam blocks 85. As wedges 96 move to the right they raise cam blocks 65 and through screws 82 lift bearing blocks 64, shafts 83, and rolls 80. And similarly the reverse turning of handwheel 86 lowers rolls 80. As the adjustment is a micrometer type of adjustment very accurate and quick adjustments may be made, thereby obviating the old form of individual roll adjustment which is used in this invention only for the initial leveling up of the rolls upon installation or by reason of bearing wear.

It will thus be seen that there has been provided a machine for combining on one or both sides of cardboard or boxboard stock of a web or webs of paper or other material wherein the web is smoothly applied at a relatively high rate of speed and automatically severed after the application of the web or webs with the minimum of wastage and wherein different lengths of stock and different thicknesses may be covered with quick adjustment of the machine for such accommodation.

What we claim is:

1. In a combining machine for combining a web of material with sheets of boxboard, means for cutting said web at the end of each boxboard sheet, said cutting means including a cylinder, a saw tooth cutter knife protruding radially from said cylinder, blocks having a channel therebetween, the walls of the channel serrated to correspond to the teeth of the cutter knife whereby the web is supported around each tooth at the time of the cutting.

2. In a combining machine for combining webs of paper with sheets of boxboard, means for cutting the webs, said cutting means including a cylinder, a-saw tooth cutter knife protruding from said cylinder, a serrated slot in a block for supporting the webs during the cutting operation and to prevent the webs being pressed into the slot by the cutter knife teeth.

3. In a combining machine for combining webs of material with cut sheets, means for cutting the webs, pneumatic control means for controlling said cutting means, means for initiating the action of the pneumatic control means by the ends of the boxboards.

4. In a combining machine for combining a web of paper to sheets of boxboard, means for outting the sveb, means for irictionaliy driving the cutting means, means for restraining the action tion of the cutting means, means to quickly release the restraining means, said quick release means initiated by the ends of the boxboard sheets to predeterminediy commence the operation of the cutting means, for predetermined cutting of 5 the web.

CHAS. C. WILLIS. STERHNG W. WARNER.

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