阅读说明：本技术 一种便于上料的阀门生产用修蜡设备 (Valve production is with repairing wax equipment convenient to material loading ) 是由 卢游 于 2021-07-27 设计创作，主要内容包括：本发明涉及阀门生产技术领域,且公开了一种便于上料的阀门生产用修蜡设备,包括台体,所述台体左侧的顶部固定安装有输送框,输送框内腔的底部固定安装有传送带一,输送框右侧的底部固定安装有连接板,台体右侧的顶部固定安装有传送带二。该便于上料的阀门生产用修蜡设备,利用活动柱通过连接绳与导体板固定连接,当活动柱随着待去毛刺阀门向右移动时,导体板随之右移,导致分电源一断电,从而导致与分电源一电性连接的电磁铁断电,利用电磁铁通断电磁极改变的特性,卡住调节轴,防止调节轴转动,不仅减少了工作人员的工作强度,同时自主输送去毛刺处理后的阀门以及自动传送待去毛刺处理的阀门,加快了机械装置的工作效率。(The invention relates to the technical field of valve production, and discloses a wax repairing device convenient for loading and used for valve production. This valve production is with repairing wax equipment convenient to material loading, utilize the movable post through connecting rope and conductor plate fixed connection, when the movable post moves along with treating that the burring valve moves to the right, the conductor plate moves to the right thereupon, lead to dividing power supply outage, thereby lead to and divide power supply electric connection's electromagnet outage, utilize the characteristic that electromagnet break-make electromagnetic pole changed, block the regulating spindle, prevent that the regulating spindle from rotating, staff's working strength has not only been reduced, simultaneously independently carry valve and the automatic valve that treats burring after the burring processing of conveying, mechanical device's work efficiency has been accelerated.)

1. The utility model provides a valve production is with repairing wax equipment convenient to material loading, includes stage body (1), its characterized in that: the conveying device is characterized in that a conveying frame (2) is fixedly mounted at the left top of a table body (1), a conveying belt I (3) is fixedly mounted at the bottom of an inner cavity of the conveying frame (2), a connecting plate (4) is fixedly mounted at the bottom of the right side of the conveying frame (2), a conveying belt II (5) is fixedly mounted at the top of the right side of the table body (1), a fixing plate (6) is fixedly mounted at the right side of the table body (1), and a cleaning mechanism (7) is fixedly mounted at the top of the fixing plate (6).

2. The valve production of being convenient for material loading is with repairing wax equipment of claim 1, characterized by: the left side of the inner cavity of the table body (1) is fixedly provided with a main power supply (101), the top of the left side of the inner cavity of the table body (1) is fixedly provided with a first sub-power supply (102), the bottom of the left side of the inner cavity of the table body (1) is fixedly provided with a second sub-power supply (103), the middle part of the first sub-power supply (102) is movably provided with a conductor plate (104), the right side of the conductor plate (104) is fixedly connected with a connecting rope (105), the bottom of the right side of the first sub-power supply (102) is fixedly provided with a clamping rod (106), the top of the first sub-power supply (102) is fixedly connected with a lead (107), and the structures of the first sub-power supply (102) and the second sub-power supply (103), the shapes and the sizes are identical, the conductor plate (104) is fixedly connected with the inner cavity of the first branch power supply (102) through a spring, and the length of the clamping rod (106) is matched with the length of the conductor plate (104) which can leave the first branch power supply (102) and the second branch power supply (103).

3. The valve production of being convenient for material loading is with repairing wax equipment of claim 1, characterized by: the utility model discloses a valve conveying device, including carrying frame (2), the equal fixed mounting in the left and right sides at frame (2) right side top has regulation seat (201), the outer fixed surface of regulation seat (201) inner chamber installs electro-magnet (202), the bottom fixed mounting of electro-magnet (202) has flexible piece (203), the bottom fixed mounting of flexible piece (203) inner chamber has magnetic sheet (204), the middle part movable mounting of regulation seat (201) has regulating spindle (205), the equal fixed mounting in upper and lower both sides of regulating spindle (205) has push pedal (206), electro-magnet (202) pass through wire (107) and divide power supply (102) electric connection, the bottom after electro-magnet (202) circular telegram is opposite with the top magnetic pole of magnetic sheet (204), the shape size of flexible piece (203) and the shape size phase-match of regulating spindle (205) surface, the shape size phase-match of push pedal (206) and the shape size phase-match of the valve of waiting to carry.

4. The valve production of being convenient for material loading is with repairing wax equipment of claim 1, characterized by: the middle part fixed mounting of fixed plate (6) inner chamber has horizontal pole (601), the inner chamber movable mounting of horizontal pole (601) has movable post (602), the equal fixed mounting in upper and lower both sides of activity post (602) has montant (603), the equal fixed mounting in the left and right sides of activity post (602) has buffer spring (604), the right side fixed mounting of horizontal pole (601) inner chamber has controller (605), bar groove (606) have been seted up on the right side of horizontal pole (601), the outer fixed surface of montant (603) installs the friction cloth, controller (605) are through wire (107) telecommunications control, the diameter size of bar groove (606) and the diameter size phase-match of activity post (602) side, activity post (602) are scalable regulation structure.

5. The valve production of being convenient for material loading is with repairing wax equipment of claim 1, characterized by: the right side demountable installation of fixed plate (6) has adsorption plate (607), and the middle part of adsorption plate (607) is seted up with horizontal pole (601) assorted recess, and the coefficient of friction between the material of adsorption plate (607) inner chamber and the material of montant (603) surface friction cloth is great.

Technical Field

The invention relates to the technical field of valve production, in particular to a wax repairing device for valve production, which is convenient for feeding.

Background

The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling a conveying medium, and has the functions of stopping, adjusting, guiding, preventing reverse flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like in a fluid conveying system, so the valve can be divided into a shut-off valve, a check valve, an adjusting valve and the like according to different functions of the valve, meanwhile, products manufactured by various manufacturers have different functions, most manufacturers purchase various basic metal parts of the valve by themselves, then process raw materials through self-contained mechanical equipment, and finally polish through deburring, grind a sealing surface and blow-dry and prevent rust, so that the valve can be packaged and sold.

In the manufacturing process, although most of the production processes are processed by machines, manual assistance is still needed for processing in the steps of deburring and polishing, surface molding wax repairing and the like, when polishing is prevented, the previous product is not completely processed, and the next product is directly transported to a scene, so that a worker needs to be arranged beside a machine for processing burrs and the like for monitoring all the time.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the wax trimming equipment for valve production, which is convenient for feeding, has the advantages of automatically conveying a valve to be deburred and automatically collecting and processing chips generated in the deburring process, and solves the problem that most manufacturers manually clean the chips generated by deburring in an automatic feeding mode of manually monitoring deburring processing machines and a manual processing mode.

(II) technical scheme

In order to realize the purposes of automatically conveying the valve to be deburred and automatically conveying the valve after the deburring treatment, and automatically collecting and treating the scraps generated in the deburring process while automatically conveying the valve after the deburring treatment, the invention provides the following technical scheme: the utility model provides a valve production is with repairing wax equipment convenient to material loading, includes the stage body, the left top fixed mounting of stage body has the transport frame, and the bottom fixed mounting who carries the frame inner chamber has conveyer belt one, carries the bottom fixed mounting on frame right side to have the connecting plate, and the top fixed mounting on stage body right side has conveyer belt two, and the right side fixed mounting of stage body has the fixed plate, and the top fixed mounting of fixed plate has clearance mechanism.

Preferably, a main power supply is fixedly installed on the left side of the table body inner cavity, a first sub-power supply is fixedly installed on the top of the left side of the table body inner cavity, a second sub-power supply is fixedly installed on the bottom of the left side of the table body inner cavity, a conductor plate is movably installed in the middle of the first sub-power supply, a connecting rope is fixedly connected to the right side of the conductor plate, a clamping rod is fixedly installed on the bottom of the right side of the first sub-power supply, a lead is fixedly connected to the top of the first sub-power supply, the structures, shapes and sizes of the first sub-power supply and the second sub-power supply are completely the same, the conductor plate is fixedly connected with the inner cavity of the first sub-power supply through a spring, the length of the clamping rod is matched with the length of the conductor plate which can be separated from the first sub-power supply and the second sub-power supply, and therefore when the connecting rope moves rightwards, the conductor plate is pulled to move out of the first sub-power supply and the second sub-power supply.

Preferably, the left side and the right side of the top of the right side of the conveying frame are fixedly provided with adjusting seats, the outer surface of the inner cavity of each adjusting seat is fixedly provided with an electromagnet, the bottom of each electromagnet is fixedly provided with a telescopic block, the bottom of the inner cavity of each telescopic block is fixedly provided with a magnetic plate, the middle part of each adjusting seat is movably provided with an adjusting shaft, the upper side and the lower side of each adjusting shaft are fixedly provided with push plates, the electromagnets are electrically connected with a power distribution unit through wires, the bottom of each electromagnet after being electrified is opposite to the top magnetic pole of the magnetic plate, the shape and the size of each telescopic block are matched with the shape and the size of the outer surface of the adjusting shaft, the shape and the size of each push plate are matched with the shape and the size of a valve to be conveyed, so that the upper magnetic pole and the lower magnetic pole of each electromagnet are exchanged after the power distribution unit is powered off, the bottom of each electromagnet is the same as the magnetic pole of the top of the magnetic plate, the telescopic blocks move downwards under the action force generated by homopolar repulsion and extend into the outer surface of the adjusting shafts, thereby restricting the rotation of the adjusting shaft.

Preferably, the middle part of the inner cavity of the fixed plate is fixedly provided with a cross rod, the inner cavity of the cross rod is movably provided with a movable column, the upper side and the lower side of the movable column are both fixedly provided with a vertical rod, the left side and the right side of the movable column are both fixedly provided with buffer springs, the right side of the inner cavity of the cross rod is fixedly provided with a controller, the right side of the cross rod is provided with a strip-shaped groove, the outer surface of the vertical rod is fixedly provided with friction cloth, the controller is controlled by wire telecommunication, the diameter of the strip-shaped groove is matched with the diameter of the side surface of the movable column, the movable column is of a telescopic adjusting structure, therefore, when in use, the linear distance of the movable columns at the left side and the right side is adjusted to be smaller than the diameter of the front side of the valve with the trimming, so that the movable columns are pushed to move when the valve moves along with the second conveyor belt, meanwhile, when the valve leaves after being trimmed, the movable column moves left and right in the cross rod under the elastic force action of the buffer spring.

Preferably, the right side demountable installation of fixed plate has the adsorption plate, the middle part of adsorption plate seted up with horizontal pole assorted recess, the coefficient of friction between the material of adsorption plate inner chamber and the material of montant surface friction cloth is great, thereby when the activity post sideslip in the horizontal pole, through driving montant and friction cloth and adsorption plate inner chamber surface friction, make the adsorption plate surface produce certain electrostatic absorption, with this with the piece absorption that the burring in-process produced on the adsorption plate surface, after the use, only need take off the adsorption plate clean can, staff's working strength has been alleviateed.

(III) advantageous effects

Compared with the prior art, the invention provides the wax repairing equipment for valve production, which is convenient for feeding, and has the following beneficial effects:

1. the valve production wax repairing equipment convenient for loading is characterized in that the movable column is fixedly connected with a conductor plate through a connecting rope by arranging an electromagnet and a telescopic block, when the movable column moves rightwards along with a valve to be deburred, the conductor plate moves rightwards along with the movable column, so that a power supply is powered off, and the electromagnet electrically connected with the power supply is powered off, the electromagnet on-off electromagnetic pole is changed by utilizing the characteristic that the electromagnet is switched on and off, so that the magnetic pole of the electromagnet on one side opposite to the magnetic plate is the same, the telescopic block moves downwards under the action of repulsive force to clamp an adjusting shaft, the adjusting shaft is prevented from rotating, the push plate is matched to prevent the valve to be deburred on the first conveyor belt from being continuously conveyed downwards, when the movable column returns to the original position, the conductor plate moves into the first power supply, the electromagnet is powered on, the telescopic block shrinks, so that the adjusting shaft can rotate, the first conveyor belt is matched to facilitate the rightward transportation of the valve to be deburred, compared with the mode of manual carrying monitoring, the device does not need manual inspection, only needs to adjust the distance between the valves to be deburred, can operate by self, not only reduces the working strength of workers, but also automatically conveys the valves after deburring treatment and automatically conveys the valves to be deburred, and accelerates the working efficiency of a mechanical device.

2. The wax repairing equipment for valve production convenient for loading is characterized in that a movable column and an adsorption plate are arranged, the distance between the two movable columns is smaller than the diameter of a valve to be deburred, so that the movable column is driven to move to the right when the valve to be deburred is transported, a controller is started when the movable column moves to the rightmost side of a cross rod, a cleaning mechanism is controlled to trim the outer surface of the valve to be deburred, after the cleaning is finished, the cleaning mechanism automatically controls a subsequent carrying mechanism to move away the trimmed valve, at the moment, after the movable column has no driving force of the valve, the movable column slides leftwards and rightwards in the cross rod under the action of the elastic force of a buffer spring, so that friction cloth on the outer surfaces of a vertical rod and the vertical rod rubs with the inner cavity of the adsorption plate, the outer surface of the adsorption plate generates electrostatic adsorption force, thereby adsorbing debris generated during the operation of the cleaning mechanism, and after the whole operation is finished, the adsorption plate is only needed to be taken out to be cleaned, the whole process is compared in the mode of cleaning that general manual work used the broom, and this device not only can be automatically with the piece absorption that the burring in-process produced, has reduced the rubbish on two surfaces of conveyer belt moreover, convenient to use, and work efficiency improves greatly.

Drawings

FIG. 1 is a front sectional view of the overall structure of the present invention;

FIG. 2 is a right side view of the fixing plate structure of the present invention;

FIG. 3 is a right side view of the conveying frame structure of the present invention;

fig. 4 is an enlarged sectional view of the structure of the adjusting seat of the present invention.

In the figure: 1. a table body; 2. a conveying frame; 3. a first conveyor belt; 4. a connecting plate; 5. a second conveyor belt; 6. a fixing plate; 7. a cleaning mechanism; 101. a main power supply; 102. a first power supply is distributed; 103. a second power supply; 104. a conductor plate; 105. connecting ropes; 106. a clamping rod; 107. a wire; 201. an adjusting seat; 202. an electromagnet; 203. a telescopic block; 204. a magnetic plate; 205. an adjustment shaft; 206. pushing the plate; 601. a cross bar; 602. a movable post; 603. a vertical rod; 604. a buffer spring; 605. a controller; 606. a strip-shaped groove; 607. and (5) adsorbing the plate.

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.

Example one

Referring to fig. 1, 3 and 4, a wax repairing device for valve production convenient for loading comprises a table body 1, a main power supply 101 is fixedly installed on the left side of the inner cavity of the table body 1, a first sub-power supply 102 is fixedly installed on the top of the left side of the inner cavity of the table body 1, a second sub-power supply 103 is fixedly installed on the bottom of the left side of the inner cavity of the table body 1, a conductor plate 104 is movably installed in the middle of the first sub-power supply 102, a connecting rope 105 is fixedly connected to the right side of the conductor plate 104, a clamping rod 106 is fixedly installed at the bottom of the right side of the first sub-power supply 102, a conducting wire 107 is fixedly connected to the top of the first sub-power supply 102, the structures, shapes and sizes of the first sub-power supply 102 and the second sub-power supply 103 are completely the same, the conductor plate 104 is fixedly connected to the inner cavity of the first sub-power supply 102 through a spring, the length of the clamping rod 106 is matched with the length of the conductor plate 104 which can leave the first sub-power supply 102 and the second sub-power supply 103, so that when the connecting rope 105 moves rightwards, the conductor plate 104 is pulled to move out of the first power supply 102 and the second power supply 103 respectively, so that the first power supply 102 and the second power supply 103 are powered off, the conveying frame 2 is fixedly installed at the top of the left side of the table body 1, the adjusting seats 201 are fixedly installed at the left side and the right side of the top of the right side of the conveying frame 2, the electromagnets 202 are fixedly installed on the outer surfaces of the inner cavities of the adjusting seats 201, the telescopic blocks 203 are fixedly installed at the bottoms of the inner cavities of the telescopic blocks 203, the magnetic plates 204 are fixedly installed at the bottoms of the inner cavities of the telescopic blocks 203, the adjusting shafts 205 are movably installed in the middle of the adjusting seats 201, the push plates 206 are fixedly installed at the upper side and the lower side of the adjusting shafts 205, the electromagnets 202 are electrically connected with the first power supply 102 through the leads 107, the bottoms of the electromagnets 202 after being electrified are opposite to the top magnetic poles of the magnetic plates 204, the size of the telescopic blocks 203 is matched with the size of the outer surface of the adjusting shafts 205, and the size of the push plates 206 is matched with the size of the valve to be conveyed, thereby divide power supply 102 outage back, the magnetic pole is exchanged about electro-magnet 202, the bottom that leads to electro-magnet 202 is the same with the magnetic pole at the top of magnetic sheet 204, make flexible piece 203 under the effort that homopolar repulsion produced, the downstream, stretch into the surface of regulating spindle 205, with this restriction regulating spindle 205 rotation, the bottom fixed mounting of carrying the frame 2 inner chamber has conveyer belt 3, the bottom fixed mounting on carrying frame 2 right side has connecting plate 4, the top fixed mounting on stage body 1 right side has conveyer belt two 5, the right side fixed mounting of stage body 1 has fixed plate 6, the top fixed mounting of fixed plate 6 has clearance mechanism 7.

The working principle is that when the deburring device is used, the electromagnet 202 and the telescopic block 203 are arranged, the movable column 602 is fixedly connected with the conductor plate 104 through the connecting rope 105, when the movable column 602 moves rightwards along with a valve to be deburred, the conductor plate 104 moves rightwards along with the movable column 602, after the movable column 602 moves to the rightmost side, the conductor plate 104 is separated from the first power supply 102, the first power supply 102 is powered off, the electromagnet 202 electrically connected with the first power supply 102 is powered off, the characteristic that the electromagnetic pole is changed when the electromagnet 202 is switched on and off is utilized, the bottom when the electromagnet 202 is powered on is opposite to the top magnetic pole of the magnetic plate 204, the magnetic poles on the opposite sides of the electromagnet 202 and the magnetic plate 204 after power off are the same, and therefore, a repulsive force is generated, the telescopic block 203 moves downwards under the action of the repulsive force to clamp the adjusting shaft 205, the adjusting shaft 205 is prevented from rotating, and the push plate 206 is matched to prevent the valve to be deburred on the conveyor belt 3 from continuously conveying downwards, after the movable column 602 is restored, the conductor plate 104 is moved into the first power supply 102, the electromagnet 202 is electrified, and because the bottom of the electromagnet 202 when electrified is opposite to the top magnetic pole of the magnetic plate 204, attractive force is generated between the electromagnet 202 and the magnetic plate 204, so that the telescopic block 203 is contracted and is not clamped with the adjusting shaft 205 any more, the adjusting shaft 205 can rotate, and the valve to be deburred is convenient to transport rightwards by matching with the first conveyor belt 3.

To sum up, this valve production of being convenient for material loading is with repairing wax equipment compares in the mode of artifical transport monitoring, and this device need not artifical inspection, only needs to adjust each other treat the burring valve between the distance after, can move by oneself, has not only reduced staff's working strength, and the valve of deburring processing is treated in the automatic conveying of while for mechanical device's work efficiency.

Example two

Referring to fig. 1-2, a valve production is with repairing wax equipment convenient to material loading, includes stage body 1, its characterized in that: the top of the left side of the table body 1 is fixedly provided with a conveying frame 2, the bottom of the inner cavity of the conveying frame 2 is fixedly provided with a first conveying belt 3, the bottom of the right side of the conveying frame 2 is fixedly provided with a connecting plate 4, the top of the right side of the table body 1 is fixedly provided with a second conveying belt 5, the right side of the table body 1 is fixedly provided with a fixed plate 6, the middle part of the inner cavity of the fixed plate 6 is fixedly provided with a cross rod 601, the inner cavity of the cross rod 601 is movably provided with a movable column 602, the upper side and the lower side of the movable column 602 are both fixedly provided with vertical rods 603, the left side and the right side of the movable column 602 are both fixedly provided with buffer springs 604, the right side of the inner cavity of the cross rod 601 is fixedly provided with a controller 605, the outer surface of the vertical rod 603 is fixedly provided with friction cloth, the controller 605 is controlled by a wire 107 in a telecommunication way, the diameter of the strip groove 606 is matched with the diameter of the side of the movable column 602, the movable column 602 is of a telescopic adjusting structure, therefore, when the deburring machine is used, the linear distance of the movable columns 602 on the left side and the right side is adjusted to be smaller than the diameter of the front face of the valve with the trimming, so that the valve moves along with the conveyor belt II 5, the movable columns 602 are pushed to move, meanwhile, when the valve leaves after being trimmed and trimmed, the movable columns 602 move left and right in the cross rods 601 under the elastic force of the buffer springs 604, the adsorption plate 607 is detachably mounted on the right side of the fixed plate 6, the middle part of the adsorption plate 607 is provided with a groove matched with the cross rods 601, the friction coefficient between the material of the inner cavity of the adsorption plate 607 and the material of the surface friction cloth of the vertical rods 603 is large, so that when the movable columns 602 slide left and right in the cross rods 601, the outer surface of the adsorption plate 607 is driven to generate certain electrostatic adsorption force by the friction between the vertical rods 603 and the surface of the friction cloth and the inner cavity of the adsorption plate 607, so that chips generated in the deburring process are adsorbed on the surface of the adsorption plate 607, and after use is finished, only need take off the adsorption plate 607 clean can, alleviateed staff's working strength, fixed mounting has clearance mechanism 7 at the top of fixed plate 6.

The working principle is that when in use, the movable column 602 is a telescopic adjusting structure, the distance between two movable columns 602 which are fixedly arranged on the fixed plate 6 at the left side and the right side of the table body 1 at the left side and the right side is adjusted to be smaller than the diameter of a valve to be deburred, so that when the valve to be deburred is transported, the movable column 602 is driven to move rightwards, the movable column 602 is fixedly connected with the conductor plate 104 through the connecting rope 105, when the movable column 602 moves rightwards along with the valve to be deburred, the conductor plate 104 moves rightwards along with the valve to be deburred, after the movable column 602 moves to the rightmost side, the conductor plate 104 is separated from the secondary power supply 103 to cause the power failure of the secondary power supply 103, so that the power failure of the conveyor belt 5 which is electrically connected with the secondary power supply 103 is caused, the conveyor belt 5 stops running, and meanwhile, the controller 605 is fixedly arranged at the rightmost side of the cross bar 601, the controller 605 is electrically connected with the cleaning mechanism 7 through the lead 107, so that when the movable column 602 moves to the rightmost side, the starting controller 605 is pressed to control the cleaning mechanism 7 to start and trim the outer surface of the door to be deburred, after the cleaning is finished, the cleaning mechanism 7 automatically controls the subsequent carrying mechanism to move away the trimmed valve, at the moment, after the movable column 602 has no driving force of the valve, the movable column 602 slides left and right in the cross rod 601 by using the buffer springs 604 fixedly arranged at the left side and the right side of the movable column 602 under the elastic force of the buffer springs 604, so that the vertical rods 603 fixedly arranged at the upper side and the lower side of the movable column 602 and the friction cloth on the outer surface of the vertical rods 603 rub against the inner cavity of the adsorption plate 607, as the middle part of the adsorption plate 607 is provided with the groove matched with the cross rod 601, the friction coefficient between the material of the inner cavity of the adsorption plate 607 and the material of the friction cloth on the surface of the vertical rods 603 is larger, the outer surface of the adsorption plate 607 after the rubbing generates electrostatic adsorption force, thereby adsorbing the scraps generated when the cleaning mechanism 7 works, after the whole work is finished, the adsorption plate 607 is only taken out to be wiped.

To sum up, this valve production of being convenient for material loading is with repairing wax equipment, whole process is compared in the mode of cleaning of general manual work use broom, and this device not only can be automatic adsorb the piece that the burring in-process produced, has reduced the rubbish on two 5 surfaces of conveyer belt moreover, convenient to use, and work efficiency improves greatly.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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.