Bearing pressure straight steel wire straightener
Technical Field
The invention relates to the technical field of steel wire straightening equipment, in particular to a bearing straight steel wire straightening machine.
Background
The steel wire is one of four major varieties of steel plate, pipe, type, silk, is the reprocessing product that is made by hot rolling wire rod through cold drawing, is the essential raw materials in the building field, in order to facilitate people's transportation steel wire, will generally wind the steel wire into the package, need to utilize the steel wire straightener to straighten the steel wire when using the steel wire.
However, the existing steel wire straightening machine can only extrude the steel wire in one direction, cannot completely straighten the steel wire, needs to straighten the steel wire for many times, increases the workload of workers, and has low steel wire straightening quality, thereby affecting the quality of subsequent processing products.
In view of the above-mentioned problems, the prior publication No. CN206677078U discloses a steel wire straightening mechanism, which can transversely straighten a steel wire by a ninth driving wheel, a tenth driving wheel, an eleventh driving wheel and a twelfth driving wheel, and longitudinally straighten the steel wire by a fifth driving wheel, a sixth driving wheel, a seventh driving wheel and an eighth driving wheel, thereby straightening a curved or irregular steel wire, but the steel wire straightening mechanism can only extrude and straighten the steel wire with a specified specification, has a narrow application range, needs to be equipped with steel wire straightening mechanisms with various specifications on the same building site, increases the building cost, has no pay-off device, directly puts the rolled steel wire on the ground, is easy to knot under the effect of torsion during the process of drawing the steel wire, reduces the steel wire straightening speed, and has no device for removing rust on the steel wire, the iron rust on the surface of the steel wire damages the straightening roller and the surface of the steel wire, and the quality of steel wire straightening is reduced, so that the bearing straightening steel wire straightening machine which is wide in application range and provided with the pay-off device and the rust removing device needs to be designed urgently.
Disclosure of Invention
Aiming at the defects of the reference documents, the invention provides a bearing pressure straight steel wire straightening machine which has the advantages of wide application range, a pay-off device, a rust removing device and the like, solves the problems that the steel wire straightening mechanism only can extrude and straighten steel wires with specified specifications, the application range is narrow, a plurality of specifications of steel wire straightening mechanisms are required to be equipped on the same building site, the building construction cost is increased, the coiled steel wires are directly placed on the ground without the pay-off device, knotting is easy to occur under the action of torsion in the process of drawing the steel wires, the steel wire straightening speed is reduced, the steel wires are not provided with the rust removing device, iron rust on the surfaces of the steel wires damages the straightening rollers and the surfaces of the steel wires, and the steel wire straightening quality is reduced.
In order to realize the purpose of wide application range and having a pay-off device and a rust removal device, the invention provides the following technical scheme: a bearing pressure straight steel wire straightener comprises a supporting plate, wherein a rotary rod is fixedly installed at the left end of the top surface of the supporting plate, a rotary plate is movably sleeved at the top end of the rotary rod, a fixed frame is fixedly installed at the top surface of the rotary plate, a straightening box located on the right side of the rotary rod is fixedly installed at the top surface of the supporting plate, a partition plate is fixedly installed at the inner wall of the straightening box, a collecting box located on the left side of the partition plate is fixedly installed at the bottom surface of an inner cavity of the straightening box, a fixed rod is fixedly installed at the top surface of the inner cavity of the straightening box, a bending wheel is movably sleeved at the bottom end of the fixed rod, a rotary shaft located on the right side of the fixed rod is movably sleeved at the inner wall of the straightening box, a brush is fixedly sleeved at the outer part of the rotary shaft, a motor box is fixedly, the back of the rotating shaft extends to the outside of the straightening box and is fixedly sleeved with a driven roller, a positioning rod positioned on the right side of the partition plate is fixedly installed between the upper and lower two surfaces of the inner cavity of the straightening box, a lifting plate is sleeved on the outer portion of the positioning rod in a movable mode, a lifting threaded rod is fixedly installed on the top surface of the lifting plate, a lifting sleeve is sleeved on the outer thread of the lifting threaded rod, a positioning plate is fixedly installed on the bottom surface of the lifting plate, a first longitudinal straightening roller is movably installed at the bottom of the positioning plate, a fixed transverse rod positioned below the positioning plate is fixedly installed on the inner wall of the straightening box, a second longitudinal straightening roller is sleeved on the outer portion of the fixed transverse rod, a positioning sliding rod positioned on the right side of the positioning rod is fixedly installed between the upper and lower two surfaces of the inner cavity of the straightening box, a first transverse straightening roller, the movable plate is sleeved on the outer part of the limiting slide rod, the support rod is fixedly installed on the back surface of the movable plate, the second transverse straightening roller is fixedly installed on the back surface of the support rod, the adjusting threaded rod is fixedly installed on the front surface of the movable plate, the adjusting sleeve is sleeved on the outer thread of the adjusting threaded rod, the limiting rod positioned on the right side of the positioning slide rod is fixedly installed between the upper surface and the lower surface of the straightening box inner cavity, the displacement plate is sleeved on the outer part of the limiting rod, the hydraulic pump positioned right above the displacement plate is fixedly installed on the top surface of the straightening box inner cavity, the hydraulic rod is fixedly installed on the bottom surface of the hydraulic pump, the bottom end of the hydraulic rod is fixedly connected with the top surface of the displacement plate, the pressing roller is fixedly installed on the bottom surface of the displacement plate, the fixed shaft positioned right below the pressing roller, the back of fixed axle extends to the outside of alignment case and fixed the cup joint has driven wheel, the right-hand member fixed mounting of backup pad bottom surface has a support box, the bottom surface fixed mounting of support box inner chamber has traction motor, traction motor's output shaft extends to the outside of support box and fixed cup joint has the drive wheel.
Preferably, the outside winding of mount has the steel wire, and the right flank of alignment case has seted up the discharge gate, the feed inlet has been seted up to the left flank of alignment case, and the one end of steel wire extends to the inside of alignment case and extends to the outside of alignment case from the discharge gate from the feed inlet, the top surface fixed mounting of backup pad has the arc track that is located the rotary rod left and right sides, and the inside movable mounting of arc track has the steel ball, the arc type groove with steel ball looks adaptation is seted up to the bottom surface of rotor plate.
Preferably, the bottom surface fixed mounting of collecting box has the pulley, and the bottom surface fixed mounting of alignment case inner chamber has the concave type track with pulley looks adaptation, the left surface of alignment case inner chamber and the equal fixed mounting of the left surface of baffle have the deflector that is located the collecting box top, the left surface fixed mounting of alignment case has the leading wheel with feed inlet looks adaptation, and the right flank fixed mounting of alignment case has the discharging wheel with discharge gate looks adaptation.
Preferably, the inner wall fixed mounting of straightening case has the first guide bar that is located the baffle right side, and the outside activity of first guide bar has cup jointed first guide roll, the inner wall fixed mounting of straightening case has the second guide bar that is located first guide bar right side below, the outside activity of second guide bar has cup jointed the second guide roll, lifting sleeve's top extends to the outside and the fixed mounting of straightening case has the regulation handle, and lifting sleeve's outside cup joints with the top surface activity of straightening case, the regulation sleeve's front extends to the outside and the fixed mounting of straightening case has the operating handle, and the outside of regulation sleeve cup joints with the positive activity of straightening case.
Preferably, the quantity of driven wheel is two, and two driven wheels pass through the belt and are connected with the drive wheel transmission, the back fixed mounting of alignment case has the protective housing with driven wheel, drive wheel and belt looks adaptation, drive roller passes through the drive belt and is connected with the driven roller transmission, and the back fixed mounting of driven roller has the protection casing with drive belt, drive roller and driven roller looks adaptation.
Compared with the prior art, the invention provides a bearing pressure straight steel wire straightening machine, which has the following beneficial effects:
1. this steel wire straightener is straightened to bearing, through rotating lifting sleeve, make lifting threaded rod can take first vertical alignment roller rebound or downstream through lifter plate and locating plate, thereby make the workman can adjust the vertical distance between first vertical alignment roller and the vertical alignment roller of second, through rotating adjusting sleeve, make adjusting threaded rod can take the horizontal alignment roller of second to move forward or move backward through fly leaf and bracing piece, thereby make the workman can adjust the horizontal distance between first horizontal alignment roller and the horizontal alignment roller of second, finally make the workman can adjust this steel wire straightener is straightened to bearing vertical extrusion distance and horizontal extrusion distance according to the specification of steel wire, the application scope of this steel wire straightener is straightened to bearing has been increased, the practicality of this steel wire straightener is straightened to bearing has been improved.
2. This steel wire straightener is straightened to bearing, through the mount, make the roll-shaped steel wire can be stable fix the top surface at the rotor plate, cooperation through hydraulic pump and hydraulic stem, a decurrent effort is provided for the displacement plate, make the pinch roller can press from both sides the steel wire tightly under the mating action of backing roll, the frictional force between steel wire and pinch roller and the backing roll has been increased, make the right removal that the steel wire can be smooth, cooperation through steel wire and mount, an effort is provided for the rotor plate, it is rotatory to make the rotor plate can use the rotary rod as the axis of rotation, the torsion of steel wire has been eliminated, the problem that the steel wire knotted under the effect of torsion and result in the alignment inefficiency has been avoided, the practicality of this steel wire straightener is straightened to bearing has.
3. This steel wire straightener is straightened to bearing, through the setting that four bending wheels crisscross each other, make the steel wire can be crooked many times at the in-process that moves to the right, thereby detach the rust on steel wire surface, drive the gyro wheel through driving motor and rotate, make drive gyro wheel can take rotation axis rotation through drive belt and driven gyro wheel area, thereby make the rotation axis can take the brush to rotate and detach the remaining rust on steel wire surface, the first vertical roller of straightening of rust damage on steel wire surface has been avoided, the vertical roller of straightening of second, first horizontal roller of straightening, the problem on horizontal roller of straightening of second and steel wire surface, the practicality of this steel wire straightener is straightened to bearing has been improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the internal structure of FIG. 1;
FIG. 3 is a schematic diagram of the right-hand internal structure of FIG. 1;
fig. 4 is a partial structural view of the back side of fig. 1.
In the figure: 1. a support plate; 2. rotating the rod; 3. a rotating plate; 4. a fixed mount; 5. a straightening box; 6. a partition plate; 7. a collection box; 8. fixing the rod; 9. a bending wheel; 10. a rotating shaft; 11. a brush; 12. a motor case; 13. a drive motor; 14. driving the roller; 15. a driven roller; 16. a first guide bar; 17. a first guide roller; 18. a second guide bar; 19. a second guide roller; 20. positioning a rod; 21. a lifting plate; 22. lifting a threaded rod; 23. a lifting sleeve; 24. positioning a plate; 25. a first longitudinal straightening roller; 26. fixing the cross bar; 27. a second longitudinal straightening roller; 28. positioning the slide bar; 29. a first transverse straightening roller; 30. a limiting slide bar; 31. a movable plate; 32. a support bar; 33. a second transverse straightening roller; 34. adjusting the threaded rod; 35. adjusting the sleeve; 36. a limiting rod; 37. a displacement plate; 38. a hydraulic pump; 39. a hydraulic lever; 40. a pressure roller; 41. a fixed shaft; 42. a support roller; 43. a driven wheel; 44. a support box; 45. a traction motor; 46. the wheels are driven.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a bearing pressure straight steel wire straightener comprises a support plate 1, an arc-shaped rail is fixedly arranged on the top surface of the support plate 1 and is positioned on the left side and the right side of a rotating rod 2, steel balls are movably arranged inside the arc-shaped rail, an arc-shaped groove matched with the steel balls is arranged on the bottom surface of the rotating plate 3, the rotating plate 3 can rotate more stably by utilizing the cooperation of the arc-shaped rail, the steel balls and the arc-shaped groove, the pressure on the rotating rod 2 is reduced, the practicability of the bearing pressure straight steel wire straightener is improved, the rotating rod 2 is fixedly arranged on the left side of the top surface of the support plate 1, the rotating plate 3 is movably sleeved at the top end of the rotating rod 2, a fixed frame 4 is fixedly arranged on the top surface of the rotating plate 3, steel wires are wound outside the fixed frame 4, one end of the steel wire extends from the feeding hole to the inside of the straightening box 5 and extends from the discharging hole to the outside of the straightening box 5, the straightening box 5 positioned on the right side of the rotating rod 2 is fixedly installed on the top surface of the supporting plate 1, the first guide rod 16 positioned on the right side of the partition plate 6 is fixedly installed on the inner wall of the straightening box 5, the first guide roller 17 is movably sleeved outside the first guide rod 16, the second guide rod 18 positioned on the right lower side of the first guide rod 16 is fixedly installed on the inner wall of the straightening box 5, the second guide roller 19 is movably sleeved outside the second guide rod 18, the steel wire can stably pass through the space between the first longitudinal straightening roller 25 and the second longitudinal straightening roller 27 by utilizing the matching of the first guide rod 16, the first guide roller 17, the second guide rod 18 and the second guide roller 19, the practicability of the bearing straightening steel wire straightener is improved, the guide wheel matched with the feeding hole is fixedly installed on the left side surface of the straightening box 5, the right side surface of the straightening box 5 is fixedly provided with a discharging wheel matched with the discharging port, the guide wheel is utilized to ensure that the steel wire does not rub with the edge of the feeding port, the resistance to the movement of the steel wire is reduced, the discharging wheel is utilized to ensure that the steel wire does not rub with the edge of the discharging port, the resistance to the movement of the steel wire is further reduced, the practicability of the bearing straightening steel wire straightener is improved, the inner wall of the straightening box 5 is fixedly provided with a baffle 6, the right side surface of the baffle 6 is provided with a movable hole matched with the steel wire, the bottom surface of the inner cavity of the straightening box 5 is fixedly provided with a collecting box 7 positioned at the left side of the baffle 6, the bottom surface of the collecting box 7 is fixedly provided with a pulley, the bottom surface of the inner cavity of the straightening box 5 is fixedly provided with a concave rail matched with the pulley, and the left side surface of the inner, the matching of the concave track and the pulley is utilized to enable a worker to simply and conveniently pull out the collecting box 7, the worker can conveniently clean iron rust in the collecting box 7, the workload of the worker is reduced, the practicability of the bearing straightening steel wire straightener is improved, the top surface of the inner cavity of the straightening box 5 is fixedly provided with the fixed rod 8, the bottom end of the fixed rod 8 is movably sleeved with the four bending wheels 9, the number of the bending wheels 9 is four, the four bending wheels 9 are divided into two groups by taking two bending wheels as a group, the two groups of bending wheels 9 are mutually staggered, the inner wall of the straightening box 5 is movably sleeved with the rotating shaft 10 positioned on the right side of the fixed rod 8, the outer part of the rotating shaft 10 is fixedly sleeved with the brush 11, the bottom surface of the supporting plate 1 is fixedly provided with the motor box 12, the bottom surface of the inner cavity of the motor box 12 is fixedly provided with the driving motor 13, the model of the driving motor 13 is Y80M2-, the driving roller 14 is in transmission connection with the driven roller 15 through a transmission belt, the back of the driven roller 15 is fixedly provided with a protective cover matched with the transmission belt, the driving roller 14 and the driven roller 15, the driving motor 13 can drive the driven roller 15 to rotate through the driving roller 14 by using a belt, and workers can not be injured by the rotating transmission belt, the driving roller 14 and the driven roller 15 by using the protective cover, thereby increasing the safety of the bearing straightening steel wire straightener and improving the practicability of the bearing straightening steel wire straightener, the back of the rotating shaft 10 extends to the outside of the straightening box 5 and is fixedly sleeved with the driven roller 15, a positioning rod 20 positioned on the right side of the partition plate 6 is fixedly arranged between the upper surface and the lower surface of the inner cavity of the straightening box 5, the outer part of the positioning rod 20 is movably sleeved with a lifting plate 21, and the top surface of the lifting plate 21 is fixedly, the lifting sleeve 23 is sleeved on the external thread of the lifting threaded rod 22, the top end of the lifting sleeve 23 extends to the outside of the straightening box 5 and is fixedly provided with an adjusting handle, the outside of the lifting sleeve 23 is movably sleeved on the top surface of the straightening box 5, the front surface of the adjusting sleeve 35 extends to the outside of the straightening box 5 and is fixedly provided with an operating handle, the outside of the adjusting sleeve 35 is movably sleeved on the front surface of the straightening box 5, the adjusting handle is utilized to facilitate a worker to adjust the vertical distance between the first longitudinal straightening roller 25 and the second longitudinal straightening roller 27, the operating handle is utilized to facilitate the worker to adjust the horizontal distance between the first transverse straightening roller 29 and the second transverse straightening roller 33, finally, the worker can adjust the longitudinal extrusion distance and the transverse extrusion distance of the bearing straightening steel wire straightener according to the specification of the steel wire, and the practicability of the bearing straightening steel wire straightener is improved, a positioning plate 24 is fixedly installed on the bottom surface of the lifting plate 21, a first longitudinal straightening roller 25 is movably installed on the bottom of the positioning plate 24, the bottom surface of the first longitudinal straightening roller 25 and the bottom surface of the second guide roller 19 are positioned at the same horizontal height, a fixed cross rod 26 positioned below the positioning plate 24 is fixedly installed on the inner wall of the straightening box 5, a second longitudinal straightening roller 27 is movably sleeved on the outer portion of the fixed cross rod 26, a positioning slide rod 28 positioned on the right side of the positioning rod 20 is fixedly installed between the upper surface and the lower surface of the inner cavity of the straightening box 5, a first transverse straightening roller 29 is movably sleeved on the outer portion of the positioning slide rod 28, a limiting slide rod 30 is fixedly installed on the inner wall of the straightening box 5, a movable plate 31 is movably sleeved on the outer portion of the limiting slide rod 30, a support rod 32 is fixedly installed on the back surface of the movable plate 31, a second, an adjusting sleeve 35 is sleeved on an external thread of the adjusting threaded rod 34, a limiting rod 36 positioned on the right side of the positioning slide rod 28 is fixedly installed between the upper surface and the lower surface of the inner cavity of the straightening box 5, a displacement plate 37 is movably sleeved on the external of the limiting rod 36, a hydraulic pump 38 positioned right above the displacement plate 37 is fixedly installed on the top surface of the inner cavity of the straightening box 5, the model of the hydraulic pump 38 is HPV055L, a hydraulic rod 39 is fixedly installed on the bottom surface of the hydraulic pump 38, the bottom end of the hydraulic rod 39 is fixedly connected with the top surface of the displacement plate 37, a pressing roller 40 is fixedly installed on the bottom surface of the displacement plate 37, a fixed shaft 41 positioned right below the pressing roller 40 is movably sleeved on the inner wall of the straightening box 5, a supporting roller 42 is fixedly sleeved on the external of the fixed shaft 41, the back surface of the fixed shaft 41 extends to the external of the straightening box 5 and is fixedly, the back fixed mounting of straightening case 5 has with driven wheel 43, the protective housing of drive wheel 46 and belt looks adaptation, utilize the belt, make traction motor 45 can take driven wheel 43 to rotate through drive wheel 46, utilize the protective housing again, make the workman can not hurt by pivoted belt, driven wheel 43 and drive wheel 46, the security of this bearing straightening steel wire straightener has been increased, the practicality of this bearing straightening steel wire straightener has been improved, the right-hand member fixed mounting of backup pad 1 bottom surface has support box 44, the bottom surface fixed mounting of support box 44 inner chamber has traction motor 45, traction motor 45's model is Y80M2-1, traction motor 45's output shaft extends to support box 44's outside and fixed the drive wheel 46 that has cup jointed.
In operation, the lifting sleeve 23 is firstly rotated, then the lifting threaded rod 22 drives the first longitudinal straightening roller 25 to move upwards or downwards through the lifting plate 21 and the positioning plate 24, then the vertical distance between the first longitudinal straightening roller 25 and the second longitudinal straightening roller 27 is matched with the steel wire, then the adjusting sleeve 35 is rotated, then the adjusting threaded rod 34 drives the second transverse straightening roller 33 to move forwards or backwards through the movable plate 31 and the supporting rod 32, then the horizontal distance between the first transverse straightening roller 29 and the second transverse straightening roller 33 is matched with the steel wire, then the hydraulic pump 38 is started, then the hydraulic rod 39 drives the pressing roller 40 to move downwards through the displacement plate 37, then the steel wire is tightly pressed on the top of the supporting roller 42 through the pressing roller 40, then the traction motor 45 is started, then the traction motor 45 drives the supporting roller 42 to rotate through the driving wheel 46, the belt, the driven wheel 43 and the fixed shaft 41, then the steel wire moves to the right under the action of the supporting roller 42, then the steel wire outside the fixing frame 4 slowly enters the inside of the straightening box 5, then the steel wire is bent for multiple times under the action of the bending wheel 9, then the rust on the surface of the steel wire is removed, then the driving motor 13 is started, then the driving motor 13 carries the brush 11 to rapidly rotate through the driving roller 14, the transmission belt, the driven roller 15 and the rotating shaft 10 and removes the residual rust on the surface of the steel wire, then the steel wire is longitudinally straightened under the action of the first longitudinal straightening roller 25 and the second longitudinal straightening roller 27, then the steel wire is transversely straightened under the action of the first transverse straightening roller 29 and the second transverse straightening roller 33, and then the straightened steel wire is conveyed to the outside of the straightening box 5.
In summary, the bearing straightening machine can rotate the lifting sleeve 23 to make the lifting threaded rod 22 drive the first longitudinal straightening roller 25 to move upwards or downwards through the lifting plate 21 and the positioning plate 24, thereby enabling the worker to adjust the vertical distance between the first longitudinal straightening roller 25 and the second longitudinal straightening roller 27, by rotating the adjusting sleeve 35, the adjusting threaded rod 34 can move forward or backward with the second transverse straightening roller 33 by the movable plate 31 and the supporting rod 32, therefore, a worker can adjust the horizontal distance between the first transverse straightening roller 29 and the second transverse straightening roller 33, finally the worker can adjust the longitudinal extrusion distance and the transverse extrusion distance of the bearing straightening steel wire straightener according to the specification of the steel wire, the application range of the bearing straightening steel wire straightener is increased, and the practicability of the bearing straightening steel wire straightener is improved; through the fixing frame 4, the rolled steel wire can be stably fixed on the top surface of the rotating plate 3, a downward acting force is provided for the displacement plate 37 through the matching of the hydraulic pump 38 and the hydraulic rod 39, the pressing roller 40 can clamp the steel wire tightly under the matching action of the supporting roller 42, the friction force between the steel wire and the pressing roller 40 and the supporting roller 42 is increased, the steel wire can smoothly move rightwards, an acting force is provided for the rotating plate 3 through the matching of the steel wire and the fixing frame 4, the rotating plate 3 can rotate by taking the rotating rod 2 as a rotating shaft, the torsion of the steel wire is eliminated, the problem of low straightening efficiency caused by knotting of the steel wire under the action of the torsion is solved, and the practicability of the bearing straightening steel wire straightener is improved; the four bending wheels 9 are arranged in a mutually staggered mode, so that the steel wire can be bent for multiple times in the process of moving to the right, rust on the surface of the steel wire is removed, the driving motor 13 drives the driving idler wheel 14 to rotate, the driving idler wheel 14 can drive the rotating shaft 10 to rotate through the driving belt and the driven idler wheel 15, the rotating shaft 10 can drive the brush 11 to rotate and remove residual rust on the surface of the steel wire, the problem that the rust on the surface of the steel wire damages the first longitudinal straightening roller 25, the second longitudinal straightening roller 27, the first transverse straightening roller 29, the second transverse straightening roller 33 and the surface of the steel wire is avoided, and the practicability of the bearing straightening steel wire straightener is improved; the problem of this steel wire straightening mechanism can only extrude the alignment to the steel wire of appointed specification is solved, application scope is narrow, same building site need be equipped with the steel wire straightening mechanism of multiple specification, the cost of construction building has been increased, and there is not pay-off, directly put coiled steel wire on the ground, the in-process of traction wire is tied a knot under the effect of torsional force easily, the speed of steel wire alignment has been reduced, the device that derusts the steel wire does not have simultaneously, the rust damage alignment roller and the steel wire surface of steel wire surface, the quality of steel wire alignment has been reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.