Cotton yarn spinning machine for spinning
阅读说明：本技术 一种纺织用棉丝纺丝机 (Cotton yarn spinning machine for spinning ) 是由 林胜男 何磊 于 2020-07-31 设计创作，主要内容包括：本发明公开了一种纺织用棉丝纺丝机,包括底座,所述底座的上端固定安装有壳体,所述壳体的侧表面上端设置有出丝口,所述壳体的上表面一端设置有第二导向辊,所述壳体的上表面靠近第二导向辊的一侧固定安装有卷纱筒,所述壳体的内部上端靠近出丝口的位置设置有第一导向辊,所述壳体的内部靠近第一导向辊的位置固定安装有自动除绒装置,所述壳体的内底部设置有纺丝机本体,所述自动除绒装置包括与壳体通过螺栓固定连接的安装板。本案对棉线表面的绒毛除毛效果好,工作噪音小,使用效果好。(The invention discloses a cotton yarn spinning machine for spinning, which comprises a base, wherein a shell is fixedly arranged at the upper end of the base, a yarn outlet is formed in the upper end of the side surface of the shell, a second guide roller is arranged at one end of the upper surface of the shell, a yarn winding drum is fixedly arranged on one side, close to the second guide roller, of the upper surface of the shell, a first guide roller is arranged at the position, close to the yarn outlet, of the upper end in the shell, an automatic lint removing device is fixedly arranged at the position, close to the first guide roller, in the shell, a spinning machine body is arranged at the inner bottom of the shell, and the automatic lint removing device comprises an installation plate fixedly connected with the shell through bolts. The present case is effectual to the fine hair defeathering on cotton thread surface, and noise at work is little, excellent in use effect.)
1. The utility model provides a cotton spinning machine for weaving, includes base (1), its characterized in that: a shell (2) is fixedly mounted at the upper end of the base (1), a yarn outlet (3) is formed in the upper end of the side surface of the shell (2), a second guide roller (4) is arranged at one end of the upper surface of the shell (2), a yarn winding drum (5) is fixedly mounted on one side, close to the second guide roller (4), of the upper surface of the shell (2), a first guide roller (6) is arranged at the position, close to the yarn outlet (3), of the inner upper end of the shell (2), an automatic down removing device (7) is fixedly mounted at the position, close to the first guide roller (6), of the inner part of the shell (2), and a spinning machine body (8) is arranged at the inner bottom of the shell (2);
automatic remove fine hair device (7) include mounting panel (71) through bolt fixed connection with casing (2), the lower surface intermediate position of mounting panel (71) runs through and is provided with entrance hole (73), the last fixed surface of mounting panel (71) installs shell (78), shell (78) medial surface slidable mounting has fine hair collection device (74), top surface fixed mounting has except fine hair module (11) in shell (78), the last surface intermediate position fixed mounting of shell (78) has outlet (77).
2. A cotton spinning machine for textile use according to claim 1, characterized in that: the fluff collecting device (74) comprises a sliding groove (741) embedded in the side wall of the shell (78), a sliding block (742) is connected inside the sliding groove (741) in a sliding mode, a telescopic rod (743) is fixedly mounted at one end of the sliding block (742), and an electrostatic generating plate (744) is fixedly mounted at one end of the telescopic rod (743).
3. A cotton spinning machine for textile use according to claim 2, characterized in that: the lower surface edge position fixed mounting of mounting panel (71) has album fine hair groove (72), collection fine hair groove (72) upper end is fixed and is provided with the valve.
4. A cotton spinning machine for textile use according to claim 3, characterized in that: the lint removing module (11) comprises a hollow ring (12), a mounting block (13), a sliding rod (14), a return spring (15), a conical net (16) and a pull wire (17); the number of the mounting blocks (13) is multiple, and the mounting blocks (13) are uniformly fixed on the side wall of the hollow ring (12); each mounting block (13) is connected with a corresponding sliding rod (14) in a sliding manner; one end of the sliding rod (14) is fixedly arranged with the inner top surface of the shell (78); the reset spring (15) is sleeved on the sliding rod (14), and the reset spring (15) is used for resetting the mounting block (13) after sliding on the sliding rod (14); the small end of the conical net (16) is fixedly connected with one annular side surface of the hollow ring (12), and the large end of the conical net (16) is uniformly connected with the end parts of at least two pull wires (17); half of the stay wires (17) close to the telescopic rods (743) on one side are connected with the end parts of the telescopic rods (743); the pull wires (17) are all guided by guide rings (19), and the guide rings (19) are fixed on the inner bottom surface of the shell (78) through a bracket; when the conical net (16) is pulled by the pull wire (17), the meshes (161) can be reduced, and the continuously reduced meshes (161) can clamp the fluff on the surface of the cotton thread to scrape the fluff on the surface of the cotton thread.
5. A cotton spinning machine for textile according to claim 4, characterized in that: a first air inlet (121) is formed in the hollow ring (12), and a first one-way air inlet valve is arranged on the first air inlet (121); a first air outlet (122) is formed in the hollow ring (12), a pressure valve is formed in the first air outlet (122), and the first air outlet (122) faces the inner side of the conical net (16); the surface of the hollow ring (12) contacting with the cotton thread is made of a wear-resistant heat-absorbing material, and a radiating fin is arranged on one side surface of the heat-absorbing material facing the inside of the hollow ring (12).
6. A cotton spinning machine for textile according to claim 5, characterized in that: an elastic air bag (18) is arranged below the sliding block (742); the elastic air bag (18) is provided with a second unidirectional air inlet and a second unidirectional air outlet, and the second unidirectional air inlet and the second unidirectional air outlet are both provided with unidirectional air valves; the second one-way air outlet is communicated with the inside of the hollow ring (12); the elastic air bag (18) is compressed by the sliding block (742) which slides downwards to supply air into the hollow ring (12) in a single direction.
7. A cotton spinning machine for textile use according to claim 1, characterized in that: the circle centers of the lint removing module (11), the wire inlet hole (73) and the wire outlet (77) are positioned on the same straight line.
8. A cotton spinning machine for textile use according to claim 1, characterized in that: the anti-skid device is characterized in that an anti-skid pad (9) is fixedly mounted at the bottom of the base (1), and the anti-skid pad (9) is a rubber component.
Technical Field
The invention relates to the technical field of textile equipment, in particular to a cotton spinning machine for spinning.
Background
The spinning machine is a machine for forming a fiber-forming polymer solution or melt into filaments, and is classified into a wet spinning machine, a melt spinning machine, and a dry spinning machine according to a fiber spinning method.
In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved: 1. in the prior art, a group of metal scrapers are used for scraping the fluff on the cotton yarn, but in long-time work, the metal scrapers and the cotton yarn are always in a friction state, the friction heat of the metal scrapers cannot be discharged in time, the metal scrapers and the cotton yarn are always kept on a joint surface of the metal scrapers and the cotton yarn, so that the temperature of the metal scrapers is greatly increased, the cotton yarn can be burnt, and the scraping effect of the fluff can be reduced; 2. among the prior art, the scraper blade is removing fine hair after, and it is usually continuous to blow into the collection box with the fine hair through the fan, and the noise that this kind of mode sent at the during operation is great, and simultaneously because inner structure is comparatively tortuous can cause the vortex, and then causes fine hair not to be easy to collect, and collection efficiency is lower.
Therefore, a cotton spinning machine for spinning is provided.
Disclosure of Invention
The invention aims to provide a cotton yarn spinning machine for spinning, which has low noise and good hair removing effect and is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a cotton yarn spinning machine for spinning comprises a base, wherein a shell is fixedly mounted at the upper end of the base, a yarn outlet is formed in the upper end of the side surface of the shell, a second guide roller is arranged at one end of the upper surface of the shell, a yarn winding drum is fixedly mounted on one side, close to the second guide roller, of the upper surface of the shell, a first guide roller is arranged at the position, close to the yarn outlet, of the upper end in the shell, an automatic fluff removing device is fixedly mounted at the position, close to the first guide roller, in the shell, and a spinning machine body is arranged at the inner bottom of the shell;
the automatic remove fine hair device include with the casing through bolt fixed connection's mounting panel, the lower surface intermediate position of mounting panel runs through and is provided with the entrance hole, the last fixed surface of mounting panel installs the shell, shell medial surface slidable mounting has fine hair collection device, top surface fixed mounting has except that the fine hair module in the shell, the last surface intermediate position fixed mounting of shell has the outlet.
The fine hair collection device is seted up in the spout of shell lateral wall including the embedding, the inside sliding connection of spout has the slider, the one end fixed mounting of slider has the telescopic link, the one end fixed mounting of telescopic link has the static board of taking place.
The lower surface edge position fixed mounting of mounting panel has the collection fine hair groove, collection fine hair groove upper end is fixed and is provided with the valve.
The down removing module comprises a hollow ring, a mounting block, a sliding rod, a return spring, a conical net and a stay wire; the number of the mounting blocks is multiple, and the mounting blocks are uniformly fixed on the side wall of the hollow ring; each mounting block is connected with a corresponding sliding rod in a sliding manner; one end of each sliding rod is fixedly arranged with the inner top surface of the shell; the reset spring is sleeved on the sliding rod and used for resetting the mounting block after sliding on the sliding rod; the small end of the conical net is fixedly connected with one side surface of the annular hollow ring, and the large end of the conical net is uniformly connected with at least two stay wire end parts; half of the stay wires close to the telescopic rod on one side are connected with the end part of the telescopic rod; the stay wires are all guided by guide rings, and the guide rings are fixed on the inner bottom surface of the shell through a bracket; when the conical net is pulled by the pull wire, the meshes can be reduced, and the continuously reduced meshes can clamp the fluff on the surface of the cotton thread to scrape the fluff on the surface of the cotton thread.
A first air inlet is formed in the hollow ring, and a first one-way air inlet valve is arranged on the first air inlet; a first air outlet is formed in the hollow ring, a pressure valve is arranged on the first air outlet, and the first air outlet faces the inner side of the conical net; the surface of the hollow ring, which is in contact with the cotton threads, is made of a wear-resistant heat-absorbing material, and a radiating fin is arranged on one side surface of the heat-absorbing material, which faces the inside of the hollow ring.
An elastic air bag is arranged below the sliding block; the elastic air bag is provided with a second unidirectional air inlet and a second unidirectional air outlet, and the second unidirectional air inlet and the second unidirectional air outlet are both provided with unidirectional air valves; the second one-way air outlet is communicated with the inside of the hollow ring; the elastic air bag is compressed by the sliding block sliding downwards and supplies air to the hollow ring in a one-way mode.
The circle centers of the lint removing module, the wire inlet hole and the wire outlet are positioned on the same straight line.
The base bottom fixed mounting has the slipmat, the slipmat is the component of a rubber material.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the fluff collecting device is arranged, the static electricity is generated by the static electricity generating plate, fluff is attracted to the surface of the static electricity generating plate by the static electricity, then the static electricity generating plate retracts by the telescopic rod, the static electricity generating plate is driven to move downwards to the inside of the fluff collecting groove by the sliding block sliding in the sliding groove, the static electricity generating plate is closed, the fluff naturally falls off to enter the fluff collecting groove after losing the suction force, the automatic collection of the fluff is completed, the noise is low during the working, and the collecting efficiency and the collecting effect are improved compared with the traditional wind power collection.
2. According to the invention, cotton threads penetrate through the hollow ring to contact with the hollow ring, on one hand, the hollow ring can smooth the surface of the cotton threads, and the improvement of the surface quality of the cotton threads is facilitated; on the other hand, the hollow ring and the cotton thread slide relatively to generate heat, the heat is accumulated on the heat absorption material on the outer surface of the hollow ring, and then the heat is conducted and dissipated into the hollow ring through the heat absorption material and the heat dissipation fins, so that the air in the hollow ring can expand, and the air in the hollow ring is released unidirectionally, therefore, on one hand, the hollow ring is prevented from accumulating high heat to burn the surface of the cotton thread when the surface of the cotton thread is smoothed out, on the other hand, the air expanded by temperature rise is blown to the fluff on the conical net through the air outlet, and the fluff adhered on the conical net is favorably blown off.
3. According to the invention, the slide block slides in the sliding groove to drive the static electricity generating plate to move downwards to the inside of the flock collecting groove, so that the slide block extrudes the elastic air bag, the elastic air bag supplies air to the inside of the hollow ring, and the air pressure in the hollow ring is rapidly increased and discharged from the first air outlet to blow the conical net from top to bottom; and when the pull wire moves downwards under the driving of the sliding block, the pull wire is in a loose state, and the conical net is restored to the original state, so that the air outlet I blows the loose conical net to easily blow down the fluff, and the electrostatic generation plate is convenient to collect the fluff again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that fig. 1 to 5 in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the fluff collecting apparatus of the present invention;
FIG. 4 is a schematic structural diagram of an automatic lint picker according to the present invention;
FIG. 5 is a schematic structural diagram of a lint removal module according to the present invention;
description of reference numerals: in the figure: 1. a base; 2. a housing; 3. a filament outlet; 4. a second guide roller; 5. a yarn winding drum; 6. a first guide roller; 7. an automatic lint removing device; 71. mounting a plate; 72. a flock collecting groove; 73. a wire inlet hole; 74. a fluff collecting device; 741. a chute; 742. a slider; 743. a telescopic rod; 744. a static electricity generating plate; 75. a support; 76. a scraping plate; 761. a heat dissipation housing; 762. a supporting strip; 763. a rubber blade; 764. heat conducting glue; 77. an outlet; 78. a housing; 8. a spinning machine body; 9. a non-slip mat; 11. a lint removing module; 12. a hollow ring; 13. mounting blocks; 14. a slide bar; 15. a return spring; 16. a conical mesh; 17. a pull wire; 161. mesh openings; 121. a first air inlet; 122. a first air outlet; 18. an elastic air bag; 19. a guide ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 5 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 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.
The invention provides a technical scheme of a cotton spinning machine for spinning, which comprises the following steps: a cotton yarn spinning machine for spinning comprises a base 1, wherein a shell 2 is fixedly installed at the upper end of the base 1, a yarn outlet 3 is formed in the upper end of the side surface of the shell 2, a second guide roller 4 is arranged at one end of the upper surface of the shell 2, and a yarn winding drum 5 is fixedly installed on one side, close to the second guide roller 4, of the upper surface of the shell 2; the yarn winding drum 5 is used for winding cotton threads;
a first guide roller 6 is arranged at the upper end of the inside of the shell 2 and close to the filament outlet 3, an automatic down removing device 7 is fixedly arranged at the position of the inside of the shell 2 and close to the first guide roller 6, and a spinning machine body 8 is arranged at the inner bottom of the shell 2;
as one embodiment of the present disclosure, the automatic lint removing device 7 includes a mounting plate 71 fixedly connected to the housing 2 through a bolt, a wire inlet 73 is formed through a middle position of a lower surface of the mounting plate 71, a housing 78 is fixedly mounted on an upper surface of the mounting plate 71, a lint collecting device 74 is slidably mounted on an inner side surface of the housing 78, a
As one embodiment of the scheme, the lint removing module 11 comprises a hollow ring 12, a mounting block 13, a sliding rod 14, a return spring 15, a conical net 16 and a pull wire 17; a plurality of mounting blocks 13 are arranged, and the mounting blocks 13 are uniformly fixed on the side wall of the hollow ring 12; each mounting block 13 is slidably connected with a corresponding sliding rod 14; one end of the sliding rod 14 is fixedly mounted with the inner top surface of the shell 78; the reset spring 15 is sleeved on the sliding rod 14, and the reset spring 15 is used for resetting the mounting block 13 after sliding on the sliding rod 14; the small end of the conical net 16 is fixedly connected with one annular side surface of the hollow ring 12, and the large end of the conical net 16 is uniformly connected with the end parts of at least two pull wires 17; half the number of the stay wires 17 close to the telescopic rod 743 on one side are connected with the end part of the telescopic rod 743; the pull wires 17 are all guided by a guide ring 19, and the guide ring 19 is fixed on the inner bottom surface of the shell 78 through a bracket; the tapered net 16 can be contracted when being pulled by the pull wire 17, and the continuously contracted net 161 can clamp the fluff on the surface of the cotton thread to scrape the fluff on the surface of the cotton thread.
When in work, cotton threads sequentially pass through the thread inlet 73, the rotation center of the conical net 16, the inner diameter of the hollow ring 12 and the thread outlet 77; under the control of the controller, the telescopic rod 743 stretches back and forth to push the static electricity generation plate 744 to move, when the telescopic rod 743 stretches out, the pull wire 17 is loosened, the conical net 16 is reset under the action of the reset spring 15, the meshes 161 of the conical net 16 are restored, fluff scraped by the conical net 16 falls from the restored meshes 161, at the moment, the static electricity generation plate 744 is also close to the lower part of the conical net 16 when the telescopic rod 743 stretches, and the static electricity generation plate 744 generates static electricity to adsorb the fluff; when the telescopic rod 743 is shortened, the telescopic rod 743 pulls the pull wire 17, so that the conical net 16 is elongated and deformed, meanwhile, the hollow ring 12 slides on the sliding rod 14 to drive the conical net 16 to move rapidly, as the conical net 16 is pulled rapidly, the meshes 161 of the conical net 16 are changed from a circular shape to a flat slit to clamp down fluff, the conical net 16 rapidly slides in the moving direction opposite to the cotton thread to scrape down the fluff on the cotton thread, and at the moment, the static electricity generation plate 744 is far away from the conical net 16 to convey the adsorbed fluff into the fluff collection groove 72, and the power is cut off to eliminate static electricity so that the fluff falls down; thereby realizing the scraping and discharging of the fluff on the cotton thread, adsorbing the fluff through the static electricity generation plate 744, having less noise and further improving the physical and mental health of factory workers; meanwhile, the fluff is clamped and dragged through the conical net 16 to be scraped, the fluff on the cotton threads can be quickly removed, and the scraping effect is good.
As one embodiment of the present disclosure, a
When the cotton yarn straightening machine works, cotton yarns penetrate through the hollow ring 12 to be in contact with the hollow ring 12, on one hand, the hollow ring 12 can smooth the surface of the cotton yarns, and the improvement of the surface quality of the cotton yarns is facilitated; on the other hand, the hollow ring 12 and the cotton thread slide relatively to generate heat, the heat is accumulated on the heat absorbing material on the outer surface of the hollow ring 12, and then the heat absorbing material and the radiating fins conduct the heat and radiate the heat into the hollow ring 12, so that the air in the hollow ring 12 can expand, when the cavity in the hollow ring 12 expands to the pressure that partial fluff on the conical net 16 is blown off through the pressure valve at one time, the pressure valve is opened, the air in the hollow ring 12 is released in a one-way manner, and the pressure of the pressure valve can be adjusted according to actual requirements; therefore, on one hand, the hollow ring 12 is prevented from accumulating high heat on the heat absorbing material to burn the surface of the cotton yarn when the surface of the cotton yarn is stroked, and on the other hand, the air with the temperature rise and expansion is blown to the fluff on the conical net 16 through the first air outlet 122, so that the fluff adhered to the conical net 16 is favorably blown off.
As an embodiment of the present invention, the diameter of the reduced mesh 161 is smaller than that of the fluff, and the diameter of the restored mesh 161 is larger than that of the fluff, in the present case, by placing the tapered net 16 on the surface of the cotton thread, part of the fluff on the surface of the cotton thread will automatically pass through the restored mesh 161, usually a plurality of fluff will pass through the same mesh 161, and the tapered
As an embodiment of the present disclosure, an elastic airbag 18 is disposed below the slider 742; the elastic air bag 18 is provided with a second unidirectional air inlet and a second unidirectional air outlet, and the second unidirectional air inlet and the second unidirectional air outlet are both provided with unidirectional air valves; the second one-way air outlet is communicated with the inside of the
When the electrostatic hair collecting device is in work, the electrostatic hair collecting device 74 is arranged, the electrostatic hair generating plate 744 is used for generating static electricity, the electrostatic hair is attracted to the surface of the electrostatic hair generating plate 744 through the static electricity, the electrostatic hair generating plate 744 is retracted through the telescopic rod 743, the electrostatic hair generating plate 744 is driven to move downwards to the inside of the hair collecting groove 72 through the sliding block 742 in the sliding groove 741, and in the process, the sliding block 742 is pushed by an air cylinder or an electric telescopic rod; the slide block 742 presses the elastic air bag 18, so that the elastic air bag 18 supplies air into the hollow ring 12, the air pressure in the hollow ring 12 is rapidly raised, and air is discharged from the first air outlet 122 to blow the conical net 16 from top to bottom; when the telescopic rod 743 is located at the upper part and in a contracted state, the stay wire 17 is in a tensioned state, when the telescopic rod 743 is driven by the slider 742 to move downwards, the stay wire 17 is in a relaxed state, the conical net 16 is restored to the original state, the meshes 161 of the conical net 16 do not tightly clamp down fluff any more, at the moment, the positive elastic air bag 18 is compressed, and the conical net 16 is blown through the first air outlet 122 on the hollow ring 12, so that the fluff on the conical net 16 is cleaned conveniently, the slider 742 drives the static electricity generation plate 744 to move downwards periodically, and the frequency of downward movement is less than the frequency of the telescopic rod 743; and when static electricity generation board 744 got into album fine hair groove 72 department, close static electricity generation board 744 for fine hair loses the suction and drops naturally and get into album fine hair groove 72 inside, accomplishes the automatic collection of fine hair, and the during operation noise is less, and collection efficiency and collection are effectual.
The size of elasticity gasbag 18 can set up according to actual demand, once only blows fine hair to toper net 16 through elasticity gasbag 18 intermittent type for fine hair when coming off from toper net 16, the air feed of elasticity gasbag 18 disappears promptly, thereby has avoided continuously blowing to make fine hair fly up and float from top to bottom and form the vortex, and then causes the difficult collection of fine hair, the lower problem of collection efficiency, simultaneously, blows to toper net 16 and also helps the heat dissipation of
As an embodiment of the present disclosure, the fluff collecting device 74 includes a sliding groove 741 embedded in a side wall of the housing 78, the sliding groove 741 is connected with a sliding block 742 in a sliding manner, an expansion rod 743 is fixedly installed at one end of the sliding block 742, and an electrostatic generating plate 744 is fixedly installed at one end of the expansion rod 743, where the selectable types of the electrostatic generating plate 744 are: model ONK-JDFSQ-02.
By adopting the technical scheme, the fluff collecting device 74 is arranged, the static electricity generating plate 744 is used for generating static electricity, fluff is attached to the surface of the static electricity generating plate 744 through electrostatic attraction, the static electricity generating plate 744 is retracted through the telescopic rod 743, the static electricity generating plate 744 is driven to move downwards to the inside of the fluff collecting groove 72 by sliding the sliding block 742 in the sliding groove 741, the static electricity generating plate 744 is closed, the fluff loses suction force and naturally falls into the fluff collecting groove 72, the automatic collection of the fluff is completed, the noise is low during working, and the collecting efficiency and the collecting effect are good.
As one embodiment of the present disclosure, a flock collecting groove 72 is fixedly installed at an edge position of a lower surface of the mounting plate 71, and a valve is fixedly arranged at an upper end of the flock collecting groove 72.
Through adopting above-mentioned technical scheme, when static takes place board 744 and adsorbs fine hair and move down, the valve is opened, unloads the fine hair after, and the valve is closed, can prevent that fine hair from wafting.
As one embodiment of the present disclosure, the circle centers of the
By adopting the technical scheme, the circle centers of the
As one embodiment of the present disclosure, a non-slip mat 9 is fixedly mounted at the bottom of the base 1, and the non-slip mat 9 is a rubber member.
Through adopting above-mentioned technical scheme, base 1 bottom fixed mounting has slipmat 9, when improving the stability ability of device, has still protected base 1.
As one embodiment of the scheme, if further needs exist, a scraper is arranged between the small end of the
As an embodiment of the present disclosure, if further needed, an air lock gate is disposed on the
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, and that the various embodiments of the present invention described above can be practiced as required, without the need for deletion of the embodiments.
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