US2357157A - Belt wrapper - Google Patents

Description

9, 1 944. 'F. J. \INO'OD 2,357,157

' BELT WRAPPER Fz'rled April 17, 1942 4 Sheets-Sheet 1 1 INVEVTOR. HANK J W000 Aug. 29,.1944.- F. J. WOOD B ELT WRAPPER Filed A ril 17. 1942 4 Sheets-Sheet 2 VINVEN'TOR. F'RANK J Woop F. 4 J. woop BELT WRAPPER Filed April 17; 1942 4 Sheets-Sheet 4 INVENTOR. Fm/vK J h ooo IWORNEY Patented Aug. 29, 1944 BELT WRAPPER 1 Frank J. Wood, Riverside, Ill., assignor to Goodman Manufacturing Company, Chicago, 111., a corporation'of Illinois 7 I Application April 17, 1942, Serial No. 439,337

8 Claims.

This invention relates to improvements in belt wrappers particularly adapted for initially wrapping strip metal around a strip coiling block.

The principal objects of my invention are to provide a new and improved form of belt wrapper adapted to efiiciently wrap strip metal of various thicknesses around a coiling block.

A further object of my invention is to provide a simplified and more efficient form, of belt wrapper having a novel form of means for positively wrapping the belt of the wrapper around a coiling block, so arranged that the belt may more efiiciently wrap strip metal of various gauges around the block, and including means operated by power for engaging the belt with the block with the desired pressure and means independently operated by power and manually controllable, for maintaining the desired tension on the belt.

A more specific object of my invention is to provide an improved form of-belt wrapper including a pivoted wrapping arm having 7 a wrapping roll on theend thereof, together with means for positively pivoting-this arm in a predetermined sequence of operation of the belt wrapper and positively engaging the wrapping roll and belt with the coiling block with pressures, which may be regulated by the operator, at will, and arranged to permit the belt wrapper to adapt itself to varying gauges of metal and sizes of coiling blocks.

Other objects of my invention will appear from Figure 7 is an enlarged detail partial fragmentary plan view, with certain parts shown in horizontal section, and illustrating certain details of the mechanism for operating the belt wrapper.

In the drawings, Figure 1 shows a blocker I which includes a projecting coiling block II rotatably driven by power, to coil strip metal. Said coiling block may be of a usual collapsible construction and said blocker and coiling block are not herein shown or described in detail since they are no part of my present invention. A- belt wrapper indicated generally by reference character I2 i provided to guide and wrap the leading end of the metal around said coiling block until the frictional engagement between the drum and strip is such that the drum will coil the strip of itself, at which time the belt wrapper may be removed from the block. a

The belt wrapper I2 includes generally a movable frame I3 having a pair of upright parallel spaced side walls I4, I4, mounted at their lower ends on supportingblocks I5, I5, which are guided for slidable movement along a stationary base frame I6 (see Figure 4). Said blocks, as herein shown, rest'on bearings I1, [1 extending along said base frame and are provided with recessed shoulderedportions I8, I8 engageable with bear ings I9, I9 extending along the base and formv ing a lateral guidefor said'movable frame,

time to time asthe following specification proceeds and with reference to the accompanying drawings wherein:

Figurel is a plan view of a coiling apparatus showing, a belt wrapper constructed in accordance with my invention in a retracted position with respect to the coiling block of the coiler;

Figure 2 is an enlarged plan view of the belt wrapper shown in Figure 1, with the wrapper in an extended position; j V

Figure 3 is an enlarged View in side elevation of the belt wrapper, with certain parts broken awayand certain other parts shown in longitudinal section, and showing the belt wrapped around the coiling block in position to wrap the/ V ISO The side walls I4, I4 of the movable frame I3 have semicircular forwardly openin recessed portions 20, 20, which partially encircle the coiling block when said frame is in an extended position; The upper forward portions of, said side walls have a transverse shaft 2| mounted therebetween which has a pair of spaced interconnected wrapping arms 22, 22 pivotally mounted thereon and disposed adjacent the insides of opposite side walls. A roller 23 is journaled on said shaft between said arms, and is adapted to engage the outside of the belt, when the 'belt wrapper is in an open position.

The arms 22, 22 are of a curved formation and the inner. sides thereof forma substantial continuation of the curved surfaces of the recessed portions 20, 20 of the side Wall I4, I4, when said arms are in a-closed-position, which is herein shown as being a lowered position. A transverse wrapping roller 24 is journaled between the outer ends of said arms and serves to engage an endless belt 21, which is trained therearound, with the-block II, during the wrapping operation. A

second transverse roller 25' is spaced inwardly of said roller 24 and is alsomounted between said arms andhas said belt trained thereover;

other transverse roller 29 having said belt trained therearound is mounted between the side walls The belt 21 is maintained at the desired tension, when the wrapper is in an open or closed position, by means of a tension idler 33, mounted between apair of pivoted arms 34, 34. Said tension roller, as herein shown, is disposed berear end of said spring abuts a collar 55, which may be threaded on said link, to provide for adjustment of said spring.

A depending rocking arm 56 is keyed to the transverse shaft 5I, intermediate the rocking arms 50, 50. The lower end of said rocking arm is pivotally connected with the forward end of a link 51, the rear end of which link has pivotal connection with a depending portion 58 of a guide member 59. Said guide member extends transversely between the side walls I4, I4 and is guided at its ends in inwardly projecting channelled guides 60, 60 extendin longitudinally along said neath the roller 29 and in substantially horizontal alignment with the roller 30. A roller 28 is mounted between the side plates I4, I4 below and rearwardly of theroller 29 but above the roller 33. Said roller 28 and the roller 23 are adapted to engage the outside of the belt, during opening of the belt wrapper. When the belt wrapper is in an open position,.sl'ack is taken up on the belt by movement of the tension idler to the rearwardly extended position shown by broken lines in Figure 3.

A table extends transversely across the forward end of said belt wrapper and forms a sup port for the strip metal as it passes to the block II. The top discharge edge of said table is substantially in alignment with the top surface of the belt, as it turns around the roller 30, when. wrapped around the coiling block II (see Fig-- ure 3). A deflecting and protecting plate 36 is mounted between the arms 22, 22 ona connecting member 38-, connecting said arms together,

and extends partially around the front roller 24,

to protect thebelt as it turns around said roller.

Said plate has an inwardlyextending portion 31,

spaced outwardly from and extending a short distance around th periphery of the coiling block I I, to a point adjacent the belt, as it passes from the roller 30 around the underside of said coiling block.

The means for pivoting the wrapping arms 22, 22 in directionsto open or close the belt wrapper includes a pair of arms 39, 39, which are herein shown as being formed integrally with and as projecting upwardly from said wrapping arms. A pair of rearwardly extending links 40, 40 connect the upper'ends of said wrapping arms to the upper ends of rocking arms M, M, mounted ad-' jacent the insides of the side frame members I4, I4 on transverse stub shafts 42', 42. Said shafts are journaled in the side walls I4, I4yintermediate their ends; Depending rocking. arms 43, 43 are mounted on the outer ends of the shafts 42, 42 on the outsides of the side walls; I 4,.

I4. Said rocking arms are connected to the upper ends of rocking arms 44, 44 by links 45, 45:. Said last mentioned rocking arms are mounted on the outer ends of a transverse shaft 46; De- {pending lever arms 41, 41 are mounted on said transverse shaft, adjacent the inner sides of the plates I4, I4. Said rocking arms are rocked by and are pivotally connected to the rear ends of" links 49, 49-, the forward ends of which links have side walls. A piston rod BI is threaded at its forward end in the side of said depending portion, opposite from the link 51. Said piston rod extends from a piston (not shown) in a cylinder 63, mounted on the central portion of the base frame I6 and extending longitudinally thereof.

Stops are provided at the ends of the guides for the blocks I5, I5, to limit movement of the frame I3. Said stops, as herein shown, include a pair of plates 64, 64, extending inwardly from the outer-sides of the frame I 6 and having screws 65, 65 threaded therein. The ends of said screws are adapted tobe engaged by the blocks I5, I5, to limit travel thereof along the bearing plates H, H. Said screws form reacting members, to cause the cylinder 63 topush thewrapping arms 22', 22 to a closed position through the piston rod BI and arms 50, 50 against the compression springs 53, 5.3-, when said frame I3 is in the proper position with respect to said coil, and may b adjusted: to determine the point of closing of said arms, to accommodate the belt-wrapper to various sizes of blocks.

When the belt wrapper is in the forwardly extended position shown in Figure 3, and fluid under pressure is admitted to the piston rod end of the cylinder 63, the piston rod 6| aided by the compression springs 53, 53 will first pivot the rocking arm 56 and the rocking arms 50, 50in a rearward or counterclockwise direction. This will move the arms 22, 22 in a clockwise direction through the'links 49, 49, and the hereinbefore described. rocking arms and links connected with the free ends of the arms 39, 39.

When fluid under pressure is admitted to the head end of the cylinder 63, the piston rod BI will move in'a forward direction. The strength of'the compression springs 53, 53, however, is greater thanthe force required to move the frame I3along the frame I6. Thus said springs will hold the rocking arms 5!], 50 in a rearwardly inclined position so the entire frame I3 will be moved along the frame I6, with the wrapping arms 22, 22 in an open position. When said frame I3 has been moved to a position where it is stopped by the screws 65, 65, further forward movement of said piston rod will compress the springs 53, 5,3, and pivot the rocking arms 56 and 50, 50 in a forward direction against said springs. Thiswill lower the wrapping arms 22, 22 and cause said arms to wrap the belt around the ceiling block II, in the hereinbefore described manner, and to positively engage the belt with the block by means of the roller 24, the amount of pressure being determined by manual operation of the valve (not shown) controlling operation of the cylinder 63. Thus when heavy gauge metal, difficult to bend, is wrapped around said block I I, the pressure with which said roller engages said block is increased from pressures necessary to bend lighter gauge metal around the block, as is the tension of the belt, controlled by the tension idler 33.

Referring now to the tension idler 33 and the means for maintaining the desired tension on the belt 21, the lever arms 34, 34 are mounted at their upper ends on a transverse shaft 66, which is mounted between the side walls l4, M. A connecting member 61 connects said lever arms together and an arm 69 extends angularly forwardly and downwardly from said connecting member.

Said arm has the forward end of a piston rod '10 pivotally connected thereto by means of a pivotal pin H. Said piston rod is extensible from a fluid cylinder 72, which cylinder is mounted on a support bracket 13, transversely pivoted adjacent its rear end on a transverse shaft 14, which is mounted at its ends in the side walls l4, 14 (see Figure 6).

Thus when it is desired to maintain tension ,on the belt 21, fluid is admitted to the piston rod end of the cylinder 12, and during movement of the belt wrapper to a retracted open position, the admission of fluid under pressure to the piston rod end of said cylinder will move said tension idler in a rearward direction, and move the belt to the extreme position shown by broken lines in Figure 3. The desired degree of tension of said belt may be maintained by manual operation of a control valve (not shown) for said cylinder, so that when it is desired to wrap light metal around the coiling block, the belt tension may be less than when wrapping heavy metaltherearound, ashas been described before.

It may be seen from the foregoing that a novel form of belt wrapper of a simplified construction has been provided, which is so arranged as to be positively opened and closed by the mechanism which moves the frame [3 to an extended or retracted position and that the belt wrapper is not moved to a closed position until the arms 22, 22 are in a position to encircle the coiling block as they are being moved to a closed position. It may also be seen that the belt may be positively engaged with the block II by the wrapping roller 24, or with the strip metal, as it is being-wrapped thereon, with various desired pressures determined by the gauge of the metal, and that the belt may be maintained at various desired tensions independently of opening or closing of the belt wrapper. It may further be seen that since the wrapping mechanism is positively operated by power through a fixed system of links and levers, that the entire wrapping mechanism may be inverted so the arms 22, 22 will move upwardly instead of downwardly when moving to a closed position, if desired, without impairing the efficiency thereof, in cases where it is more desirable to train the'metal onto the upper side of the coiling block than the lower side thereof.

While I have herein shown and described one form in which my invention may be embodied, it will be understood that the construction thereof and the arrangement of the various parts may be altered without departing from the spirit and scope thereof. Furthermore. I do not wish to be construed as limiting my invention to the specific embodiment illustrated, excepting as it may be wrapped around a coiling block by said arm, means for positively moving said frame towards or away from said coiling block including a rectilinearly movable member, a rocking arm mounted on said frame and connected with said rectilinearly movable member, whereby movement of said frame is effected through said rocking arm, a linkage connection between said rocking arm and said wrapping arm, for moving said arm towards or away from said block, a yieldable member having operative connection with said linkage connection for holding said rocking arm from rocking movement until a predetermined point is reached, as said rectilinearly movable member moves said frame towards said drum, to prevent said wrapping arm from moving in a direction to wrap said belt around said coiling block until said frame is properly positioned with respect to said coiling block.

2. A belt wrapper for strip metal comprising a frame, a wrapping arm pivoted on said frame and having a plurality of rollers thereon, a plurality of vertically and horizontally spaced rollers on said frame, a belt trained around said rollers on said arm and frame and adapted to be partially wrapped around a coiling block by said arm, means for positively moving said frame towards or away from said coiling block including a rectilinearly movable member, a rocking arm mounted on said frame and connected with saidrectiwards or away from said block, a yieldable member having operative connection with said linkage connection for holding said rocking arm from rocking movement until a predetermined point is reached, as said rectilinearly movable member moves said frame towards said block, to prevent said arm from moving in a direction to wrap said belt around said coiling block until said frame is properly positioned with respect to said coiling block, a bodily movable roller engaging the inside (:of said belt and adapted to maintain tension thereon, and manually controllable power operated means for moving said movable roller in directions to increase or decrease the tension on said belt independently of movement of said. frame and belt towards and awayfrom said.

block. i

3. In a belt wrapper, a coiling block, a frame mounted for movement towards or from said block, a wrapping arm pivotally mounted on said frame and movable to a position to partially encircle said coiling block, a plurality of spaced rollers on said arm and frame, an endless belt trained about said rollers, a tension roller engaging the inside of said belt and manually conand adapted to exert a force on said linkage con-- nection in a direction to tend to pivot said arm in a direction away from said block and to prevent pivotal movement of said arm towards said block -until said frame reaches a predetermined position with respect to said block. 4. In a belt wrapper, a coiling block,-a frame mounted for movement towards or from said block, a wrapping arm pivotally mounted on said frame and movable to a position to partially encircle said coiling block, a plurality of spaced rollers on said arm and frame, an endless belt trained about said rollers, a tension roller engaging the inside of said belt and manually con trollable to maintain the desired degree of tension on said belt, a power means for moving said frame towards or from said block, a linkage connection from said power means to said wrapping arm for pivotally moving said wrapping arm towards or from said block, depending upon the direction of movement of said frame, and a yieldable member operatively connected with and adapted to exert a force on said linkage connection in a, direction to tend to pivot said arm in a direction away from said block and to prevent pivotal movement of said arm towards said block until said frame reaches a predetermined position with respect to said block, and a, stop arranged to stop movement of said frame towards said block and to cause said power means andlinkage connection to move against said yieldable member and pivotally move said wrapping arm towards said block and wrap said belt around and positively engage it with said block.

5. In a belt wrapper, a coiling block, a frame mounted for movement towards or from said block, a wrapping arm pivotally mounted on said frame and-movable to a position to partially encircle said coiling block, a plurality of spaced rollers on Said arm and frame, an endless belt trained about said rollers, a tension roller engaging the inside of said belt, a fluid cylinder for moving said tension roller towards or from said block, manual control means for said fluid cylinder to vary the tension of said belt at will, i

a fluid cylinder for moving said frame towards or from said block, a linkage connection from said cylinder to said wrapping arm for pivot-- ally moving said wrapping arm towards or from said block, and a compression spring operatively connected with and adapted to exert a force on said linkage connection in a direction to tend to pivot said arm in adirection away from said block and to prevent movement of said arm towards said block until said frame reaches a predetermined position with respect to said block, a stop adapted to stop movement of said frame towards said block and to cause yielding of said yieldable member, to cause said linkage connection to move said wrapping arm towards said block and to wrap said belt around and positively engage it with said block.

6. A belt wrapper for strip metal comprising a frame, a coiling block, a wrapping arm pivoted on said frame and having'a plurality of rollers thereon, a plurality of vertically and horizontally spaced rollers on said frame, a belt trained around said rollers, a bodily movable tension roller engaging the inside of said belt, manually said frame towards said coiling block, and engage the belt with said block, and then move said arm in a direction to wrap said belt about said block and to positively engage said belt therewith.

'7'. A belt wrapper for strip metal comprising a frame, a coiling block, a wrapping arm pivoted on said frame and having a plurality of rollers thereon, a plurality of vertically and horizontally spaced rollers on said frame, a belt trained around said rollers, a bodily movable tension roller engaging the inside of said belt, manually controllable power operated means for moving said tension roller in directions to increase or decrease the tension of said belt, a fluid pressure cylinder and piston for positively moving said frame to- -wards and away from said coiling block, and

means actuated by said fluid pressurecylinder and piston to pivot said arm away from said coiling block, to open said belt wrapper, and then move said frame in a direction away from said coiling block, upon the admission of pressure on one end of said cylinder, and upon the admission of fluid under pressure to the other end of said cylinder to positively move said frame towards said coiling block and engage the belt with said block, and then move said arm in a direction to wrap said belt about said block and to positively engage said belt therewith including a rocking shaft mounted on said frame, a rocking arm mounted on said rocking shaft, a connection between said piston and the free end of said rocking arm, for moving said frame through said rocking arm, and a linkage connection between said rocking shaft and said wrapping arm for pivotally moving said wrapping arm upon pivotal movement of said rocking shaft.

8. A belt wrapper for strip metal comprising a frame, a coiling block, a wrapping arm pivoted on said frame and having a plurality of rollers thereon, a plurality of vertically and horizontally spaced rollers on said frame, a belt trained around said rollers, a bodily movable tension roller engaging the inside of said belt, manually controllable power operated means for moving said tension roller in directions to increase or decrease the tension of said belt, a fluid pressure cylinder and piston for positively moving said frame towards and away from said coiling block, and means actuated by said fluid pressure cylinder and piston to first pivot said arm away from said coiling block, to open said belt wrapper, and then move said frame in a direction away from said controllable power operated means for moving said tension roller in directions to increase or decrease the tension of said belt, a fluid pressure cylinder and piston for positively moving said frame towards and away from said coiling block, and means actuated by said fluid pressure cylinder and piston to pivot said arm away from said coiling block, to open said belt wrapper, and then move said frame in a direction away from said coiling block, upon the admission of fluid under pressure to one end of said cylinder, and upon the admission of fluid under pressure to the other end of said cylinder; to positively move coiling block, upon the admission of pressure on one end of said cylinder, and-upon the admission of fluid under pressure to the other end of said cylinder to positively move said frame towards said coiling blockand engage said belt with said block, and then move said arm in a direction to wrap said belt about said block and to positively enga e said belt therewith including a rocking shaft mounted on said frame, a rocking arm mounted on said rocking shaft, a connection between said piston and the free end of said rocking arm, for moving said frame through said rocking arm, a yieldable member acting in a direction to hold said rocking arm from rocking movement when said frame is moved towards said coiling block by said cylinder and piston until said belt is positively engaged with said coiling block, to prevent said wrapping arm from pivoting in a direction to positively wrap said belt about said coiling block until said arm reaches a predetermined position with respect to said block.

1 FRANK J. WOOD.

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