US2131604A - Cone winding machine - Google Patents

Description

Sept. 27, 1938.

E. TONELLI CONE WINDING MACHINE Fi led July 27, 19s? 4 Shee ts-Sheet 1 -Sept.27,: 193s. ETO L 2,131,604

CONE WINDING MACHINE Filed July 27, 1937 4 Sheets-Sheet 2 Sept. 27, 1938.

TONELLI coma WINDING MACHINE Filed July 27, 1937 4 Sheets-Sheet 5 Filed July 27, 1957 4 Sheets-Sheet 4 Patented Sept. 27, 1938 UNITED STATES? CONE WINDING MACHINE Ethil Tonelli, Fall River, Mass,- assignor to The Pairpoint Corporation, New Bcdford, Mass, a corporation of Massachusetts Application July 27, 1937, Serial No. 155,893

4 Claims.

sion of a mandrel having a plurality of radially movable spurs by which the blank to be formed into a cone is held in place in combination with a presser plate and a plurality of brushes by which the cone is formed.

Another object of this invention is the provision of a ring by which the finished cone is stripped from the mandrel, such ring being carried by the gripper unit which delivers the blank with which the cone is to be formed.

Other objects of the invention reside in the structure and details of the various elements through which the results above mentioned are obtained, as will be apparent to one skilled in the art upon an examination of the following descriptionand of the drawings which form a part thereof and in which- Fig. 1 is a plan view of a machine embodying one form of this invention;

Fig. 2 is a side elevation thereof;

Fig. 3 is an enlarged cross-sectional view illustrating the winding and completing of the cone;

Fig. 4 is a side elevation of the mandrel on 35 which the. cone is wound;

Fig. 5 is an enlarged longitudinal section of such mandrel; and i Figs. 6 and 7 are enlarged cross-sectional views thereof.

In the. illustrated machine the cones are formed upon a mandrel from blanks cut from a web fed into the machine. Machines of this type are old and well known and in the following description those features common in the art which have been employed will be touched upon briefly and not discussed at length.

The web is fed from a roll (not shown) and after being saturated with a suitable adhesive by means well known in this art (such means, being also not shown) is fed below a tension roll H] which rests thereon over a rod H and between a pair of rollers I2. The rollers l2 are suitably mounted in a standard l3 upon the base 14 of the machine frame, which standard also supports the rod H, and are yieldably held in contact with each other by springs l9. The rollers are driven through suitable gearing from a common drive shaft l5 continuously rotated in one direction from'a driven pulley l6 through across-shaft I1 and bevel gears l8. At one end of the lower roller I2 is fixed a gear 29 which meshes with a gear 2! carried by a suitably supported shaft 22 at the end of which is a pinion 23. The pinion 23 is mutilated having a fiat surface 24 in a plane parallel to the. axis of the shaft, Mounted on the main shaft I5 is a bevel gear 25 a portion of the teeth of which is omitted and replaced by a fiat ring 26 adapted to rest against the flat surface 24 of the pinion. In Fig.1 the fiat surface 24 is shown in contact with the ring 26 so that the pinion, together with the gears and rollers, is at rest. As the bevel gear 25 is rotated the teeth thereon come into mesh with the teeth of the pinion and the rollers are driven. When one rotation of the shaft 22 has been completed the ring 26 again comes in contact with the flat surface 24 of the pinion and the parts are again at rest. It will be understood that the bevel gear 25 is provided with the same number of teeth as is the pinion 23.

As the web passes through the rollers I2 it rides upon a plurality of wires 30 the ends of which pass between the rollers, the latter having circumferential grooves 3| therein. The web then passes a cutter 32 having two arcuate blades 33 which converge outwardly, as shown in Fig. l, to a severing and timing unit at which the leading end of the web is severed to provide the blank from which the cone is made, and the blank is trimmed. This includes a cutter 32 having two arcuate blades 33 which converge outwardly, as shown in Fig. 1, and thus, as will be set forth below, give the desired form to the blank. The cutter. 32 is supported at its wider end in bearings and is actuated by a bar 34 attached at the narrower end. The lower end of the bar 34 is secured'to a stu-dshaft 35 rotatably carried in a bearing upon a bracket 36 mounted upon the base of the machine frame. The shaft 35 is provided with a gear 31 by which it is rotated and the end of the bar is attached at the end of the shaft eccentrically of the axis so that as the shaft is rotated the cutter is raised and lowered. The shaft is driven intermittently through the gear 37 by a gear 38 on the main shaft 15. The gear 38 has teeth on part only of its circumference so that it meshes intermittently with the teeth of the gear 37. Carried by one face of the gear 38 is a plate 39 having an arcuate edge which registers with the untoothed portion of the gear 38.

. ranged. that the gear 3'! is held at rest until the teeth thereof are meshed by the teeth of the gear.

38 and a single complete rotation is imparted.

Carried by the base of the cutter are a pair of parallel fingers 4! on which the leading end of the web rests as it travels beyond the cutter. Simultaneously with the cutting operation the web is held in position on the fingers ll by a curved plate 42. The plate 42 is carried by a rod 43 adjustably secured to one end of an arm 44. which is pivotally supported at its other end upon a bracket 45. Depending from the arm 44, intermediate its length, is a second arm 45 at the lower end of which is carried a roller 41. The roller is yieldably held in contact with the cutter 32 by a spring 48. The plate 42 is thus caused to move in unison with the cutter and to clamp the web as the blank is severed therefrom.

The leading end of the web and subsequently the blank cut therefrom' is further supported upon a plate 59 and a finger 5|, both of which are inclined downwardly as shown in Fig. 2. A notch 52 is provided at one side of the plate and the wall of the notch coacts with a blade 53 to sever a portion from one edge of the blank. The blade 53.

is carried at the lower end of a post 54 secured at its upper end in a slot at one end of a pate 55. The plate 55 is fixed at its other end to one end of a bar 53 pivotally supported at its other end upon a stud 51. The stud 51 projects from a sleeve 58 surrounding a post 59 secured at its lower end in a bracket 59 fixed to the base of the frame. The bar 55 rests upon a cam SI on the drive shaft l5 and is yieldably held in contact therewith. As shown in Fig. 2 a coil spring 62 on a stud 93 carried by the bracket 69 is connected by a compression spring 64 with the bar 55. Projecting from a sleeve 55 fixed to the post 59 above the sleeve 58 is a curved finger 56 connected by a spring 9'? to the bar 55. Fixed to the plate 55 is a rod 58 having a spring pressed tip 99. The blade 53 is permitted by the rotation of the cam to respond to the urge of the springs 02 and 94 and cut a portion from the edge of the blank. The tip 69 of the rod 53 knocks the cut-off portion away from the blank. Thefinger 59 and spring 5? act upon the bar 55 and cause the bade 53 to contact progressively with the wall of the notch 52 as the bar descends.

The finger 5! is carried by one end of a bar I0 which bar is pivoted at its other end upon a stud II projecting from the upper end of a bracket I! mounted upon the base 54 of the frame. A spring l3 attached to the bar 70 below the stud II yieldably holds the finger 5! in position.

The blank has now been severed from the web and trimmed and is ready to be formed upon the mandrel I I9 into a cone. The blank is advanced to the mandrel by a reciprocable gripper unit having a pair of jaws I5, I6 which seize the leading end of the web before the blank is severed and trimmed. As shown in Fig. 1 the jaws are at that time between the plate 59 andthe finger 5| so that the web is securely held in the proper position for the severing and trimming operations.

The lower gripper jaw I5 is fixed upon a post H which is secured to an H-shaped block I8. The block I8 is mounted in a slot 19 in the base I4 of the machine and is reciprocated therein. A guide bar secured to the base passes between the upper legs of the block and guides its movement. As shown in Fig. 3, the post TI is secured to the in a slot I02.

upper legs of the block and forms therewith an enclosed aperture which receives the bar 80. Suitable bearing strip-s or shims BI may be provided between the bar and the block. The upper gripper jaw I6 is pivoted intermediate its length upon a stud 16I carried by the post 11. Pins 82 and 83 project from opposite sides of the jaw. The pin 82 is near the tail thereof and the pin 83 about midway between the tail end and the stud. A spring 84 carried by the post and extending under the pin 82 normally holds the upper jaw against the lower jaw and grips the blank therebetween.

The gripper unit is reciprocated by a cam 85 'bar through a sleeve 09 rotatable upon a stud on the bar and is attached to the block 'IB through a sleeve 9| rotatable upon a rod carried by the lower legs of the block. A spring 92 attached at one end to the end of the link rod near the block and at the other end to a bracket, 93 urges the gripper unit to move away from the severing and trimming mechanism. A roller 95 on the bar 86 is held against the periphery of the cam 85 by the spring 92. The cam 05 includes a fiange 90 defining a path 97 through whichthe roller 95 travels as the gripper unit is moved in one direction.

A bar I00 is pivoted intermediate its length upon the bracket 81. Projecting from one end of the bar is a stud IOI mounted for adjustment The other end of the bar terminates over a cam I03 on the cross shaft I1 and is held against the periphery thereof by a spring I04 The cam I03 thus acts to oscillate the bar H35 for a purpose to be set forth below. Pivoted upon the post TI is a latch I05 by which the gripper jaws are'held open against the urge of the spring 84. The latch is a right angular member and carries on one arm a button I96 which when the jaws are open is advanced over the pin 83 by a spring I51 and thus prevents the closing of the jaws. Mounted on the base is a bracket I08 carrying a roller I09 which is in the path of travel of theother armof the latch I05. The gripper unit is shown in Fig. 2 at one limit of its movement with the jaws clamping a blank. The cam 85 through the mechanism described above moves the gripper unit with the blank to its other limit of movement at which the blank is presented to the mandrel on which it is to be formed into a cone. As the unit reaches that position the end of the upper gripper jaw I6 passes below the stud IOI which is thereupon lowered by the cam I93 to open the jaws and release the blank. The latch I05 thereupon holds the jaws open and the cam 85 returns the gripper unit to its former position after the blank has been formed into a cone. As the unit reaches that position the roller I04 trips the latch and the jaws seize the leading end of the webprior to the severing and trimming operations.

The blank is formed upon a rotatable mandrel IIO the shaft of which is mounted in hearings on posts II I and intermittently rotated from the drive shaft I 5. The mandrel II 0 is hollow (see Fig. 5) and carries a gear II2 secured thereto between the bearings I I I. Meshing with the gear H2 is a larger gear II3 fixed upon a stub shaft I I4. The stub shaft is supported in bearings upon a bracket II5. A second gear H6 fixed upon the stub shaft I I4 meshes intermittently with a muti- 75 lated gear I I1 driven by the shaft I5. Secured to the faces of the gears II 6 and III are plates H8 and H9 which correspond in structure and function to the plates 39 and 40 previously described and insure that the gear II6 is'at rest except when the teeth of the gears H6 and H1 are actually in mesh. Mounted within the hollow of the mandrel is a partly tapered block I20 having a longitudinally extending slot I2I therein. Within the slot I2I are two bars I22 and I23. The bar I22 supports pin I24 which rest in slots I25 through the wall of the mandrel. The bar I23 is wedge-shaped and upon it rests the bar I22. Springs I26 yieldably hold the bar I22 against the bar I23. The springs I26 are each secured at one end to the bar I22 and at the other end to a cross pin I21 in a notch upon the block I20. The slot I2I is closed at one end by a plate I28 and at the other end by a plate I29 attached to the bar I22. From a consideration of this construction, as shown particularly in Fig. 5, it will be obvious that an advance of the bar I23 will cause the bar I22 to advance the pins I24 out of the slots I25 above the periphery of the mandrel so that they penetrate the blank and hold it stationary on the mandrel during the forming operation. The bar I23 is advanced and retracted by a rod I30 extending through the center of the mandrel shaft and connected by a link I3I to the upper end of an arm I32 pivoted at its lower end to a bracket I33 on the base. The tip of the arm is held yieldably against the periphery of a cam I34 on the cross shaft I1 by a spring I35. A spring I36 surrounds the rod I30 within the mandrel.

The blank delivered to the mandrel is held in contact therewith by a presser plate I40 carried by a plunger I4I pivoted upon a stud I42 projecting from an arm I43. The arm I43 is pivoted at its outer end upon a bracket I44 secured to the base and is actuated by a cam I45 on the drive shaft I5. The arm I43 is yieldably held against the cam I 45 by a coil spring I46 supported by a bracket I41 depending from the frame base. The spring bears against a roller I48 carried by the yoke of an arm I49 fixed to and projecting downwardly from the arm I43 through a slot I50 in the base I4 (see Fig. 4). The presser plate I40 is yieldably held in register with the mandrel I I0 by a spring I5I. The arm I43 and cam I45 thus act to raise and lower the plunger plate. The raising action is supplemented by a beam I52 pivoted upon the bracket I41. One end of the beam extends below the arm I49 and is adapted to bear against a roller I 53 carried thereby. The other end of the beam is connected by a link I54 and rod I55 with an arm I56 carried by a bracket I51. The arm I56 is raised and lowered by a cam I58 on the shaft I5 with the periphery of which it is yieldably held in contact by a coil spring I59 on the bracket I41. As suggested in dotted lines on Fig. 3, the cams I45 and I58 are so set that the arms I43 and I56 are simultaneously actuated to raise and lower the presser plate.

The blank is wiped around the rotating mandrel IIO by a brush I60 mounted upon ashaft I6I supported for rotation in a bearing carried by an arm I62. The arm I62 is rotatable upon a stub shaft I63 carried by a bracket I64. Secured to the arm I62 at the shaft I63 is a second arm I65 having a roller I66 which enters the enclosed path of a cam I61 driven by the shaft I5. Fixed on the brush shaft I6I is a gear I68 which meshes with a gear I69 carried by the arm I62 on a shaft provided also with a sprocket I10. The sprocket I10 is driven by a chain I1I from a sprocket I 12 fixed on a collar I13 carried by the stub shaft I63. Fixed also to the collar I13 is a sprocket I14 drivenby a chain I15 from a sprocket I16 on the shaft I5.

A second brush I is adjustably mounted upon an'arm I8I fixed to a sleeve" I82 surrounding a stud I83 carried by a post I 84 mounted upon the frame base. Secured tothe sleeve I82 is a second arm I85. The brush is yieldably urged toward the mandrel by a spring I86 carried by the post I84. Pivoted upon the post I84 is an arm I81 which projects at one side of the arm I and when swung on the pivot stud I88 causes the arm I85 to move the brush away from the mandrel. The arm I81 is actuated by a cam I 89 on the cross shaft I1 through a stud I90 on an arm I9I pivoted on the bracket I92 and a link I93. A spring I94 connected at one end to the arm I9I and at the other end toa bracket I95 balances the spring I 86 and holds the arms I85 and I81 in contact. An adjustable limit stop I96 on the bar I91 fixed to the post I84 determines therelation of the brush I80 to the mandrel.

After the cone has been formed on the mandrel I I0 the ends may be trimmed by the blades 200 and '20I. Each blade is carried by a right angled arm 202 fixed to a shaft 203 supported in bearings upon posts 204. Secured at one end of the shaft 203 is an arm 205 which carries a roller 206. The roller is adapted to rest against 5 a cam 201 on the drive shaft I5 by which the blades are swung down against the mandrel to trim the ends of the cone and are then raised. Coil springs 208 carried by brackets 209 on the posts 204 act upon rods carried between tongues 2I0 on the arms 202 to hold the roller 206 in contact with the'cam 201. In many instances the trimming of the cones is omitted and hence means are provided to hold the blades in an inoperative position. Such means are here shown as comprising an arm 2 fixed to the shaft 203 by which the roller 206 is raised out of the path of the cam 201. The arm 2 is locked in place by a latch bar 2I2 pivoted on a bracket 2I3 secured to a post 204 and. having a notch which receives a stud 2I4 on the arm. In the drawings the blades 200 and 20I are shown locked in the inoperative position and the arms 205 and 2H integral.

The finished cones are stripped from the mandrel by a ring 2I5 fixed toa Z-shaped casting 2I6 mounted upon the post 11 of the gripper unit. After the gripper jaws have delivered the blank to the mandrel IIO the unit remains at rest until the cone has been completed and then starts its return. The ring 2I5 bearing against the larger end of the cone pushes the cone off the mandrel. As the cone leaves the mandrel it is struck by a knocker 2I1 and removed from the machine through the slot I50 in the base I4. The knocker 2I1 is secured to an arm 2I8 fixed to a stub shaft 2I9 carried in a bearing on the post 204. Secured to the shaft is a trip element 220 in the path of a cam 22I on the drive shaft I5. Upon each revolution of the shaft the knocker 2I1 is raised above the plane of the mandrel and then dropped carrying with it the cone stripped from the mandrel bythe ring 2I5.

The operations of the various elements and units thus described take place in definite timed relation to each other. One cone is formed and ejected during each revolution of the main driveshaft I5. The elements are adjustable for cones 75 of different sizes. Since the drives to all the elements are from either the drive shaft [5 or the cross shaft l1 and since both these shafts are easily accessible the necessary adjustments can be made easily and without interference with other parts of the machine.

I claim:

1. In a cone winding machine the combination of a web feeding mechanism, a severing and trimming unit for severing a blank from the leading end of the web and trimming the blank, a gripper unit including gripper jaws by which the 7 leading end of the web is clamped during the severing and trimming operation, a mandrel on which the blank is formed into a cone, means for causing said gripper jaws to present the finished blank to the mandrel, a presser plate for holding the blank to the mandrel, means for securing the blank in position on the mandrel, means for rotating the mandrel and blank, brush means for wiping the blank about the mandrel as it is rotated, and means for stripping the formed cone from the mandrel.

2. In a cone winding machine the combination of a web feeding mechanism, a severing and trimming unit for severing a blank from the leading end of the Web and trimming the blank, a gripper unit including gripper jaws by which the leading end of the web is clamped during the severing and trimming operation, a mandrel on which the blank is formed into a cone, means for causing said gripper jaws to present the finished blank to the mandrel, a presser plate for holding the blank to the mandrel, means for securing the blank in position on the mandrel, means for rotating the mandrel and blank, brush means for wiping the blank about the mandrel as it is rotated, and means for stripping the formed cone from the mandrel, said means including a ring carried by the gripper unit and passed over the mandrel as the blank is presented thereto and as the unit returns to obtain another blank after the cone has been completed.

3. In a cone winding machine, a hollow mandrel on which the cone is formed from a blank, a plate within said mandrel, spurs on said plate riding in slots in the wall of the mandrel, and means for causing said plate to advance the spurs in the slots so that they project beyond the periphery of the mandrel and engage the blank thereon, such means including a tapered block having a longitudinally extending slot therein and which receives said plate, a wedgeshaped plate in said slot between the spur-supporting plate and the base of said slot, and means for advancing said wedge-shaped plate to move the spur-supporting plate radially.

4. In a cone winding machine, a mandrel on which a blank is wound into a cone, a source of such blanks, a gripper reciprocable on a line parallel to the longitudinal axis of the mandrel, means for so actuating said gripper that, as it travels in one direction, it seizes a blank and, as it travels inthe other direction, it presents that blank to the mandrel, and a ring carried by said gripper and reciprocable thereby over the mandrel, which ring, as the gripper travels in the first-named direction, engages and strips from the mandrel the cone wound thereon from the blank presented thereto.

E'II-HL TONELLI.

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