阅读说明：本技术 一种用于气凝胶复合卷材的复卷装置及操作方法 (Rewinding device for aerogel composite coiled material and operation method ) 是由 朱孟伟 刘军 于 2021-08-31 设计创作，主要内容包括：本发明公开了一种用于气凝胶复合卷材的复卷装置及操作方法,涉及气凝胶复合卷材生产技术领域。本发明包括放卷机构、传送机构、吸尘机构、收卷机构和转运机构,放卷机构包括放卷支架,放卷支架上方固定安装有第一辊轴；传送机构包括传送支架,传送支架上方固定安装有若干第二辊轴,传送支架上方还固定安装有若干传动组件；收卷机构包括收卷支架和收卷辊轴,收卷辊轴的一端固定安装在收卷支架一侧面,收卷支架上固定安装有压紧组件和卸料组件。本发明通过设置传送机构和收卷机构,避免了现有生产工序需人工摊开气凝胶复合卷材散热,再手动收卷的操作,省时省力,且方便对产品做全面检查,提升了生产效率及产品质量。(The invention discloses a rewinding device for an aerogel composite coiled material and an operation method, and relates to the technical field of aerogel composite coiled material production. The invention comprises an unreeling mechanism, a conveying mechanism, a dust collecting mechanism, a reeling mechanism and a transferring mechanism, wherein the unreeling mechanism comprises an unreeling bracket, and a first roll shaft is fixedly arranged above the unreeling bracket; the conveying mechanism comprises a conveying support, a plurality of second roller shafts are fixedly arranged above the conveying support, and a plurality of transmission assemblies are also fixedly arranged above the conveying support; the winding mechanism comprises a winding support and a winding roller shaft, one end of the winding roller shaft is fixedly installed on one side face of the winding support, and a pressing assembly and an unloading assembly are fixedly installed on the winding support. According to the invention, by arranging the conveying mechanism and the winding mechanism, the operation that the aerogel composite coiled material needs to be manually spread for heat dissipation and then manually wound in the existing production process is avoided, time and labor are saved, the product can be conveniently and comprehensively inspected, and the production efficiency and the product quality are improved.)

1. A rewinding device for aerogel composite webs, comprising:

the device comprises an unwinding mechanism (1), wherein the unwinding mechanism (1) comprises an unwinding support (101), and a first roller shaft (102) for placing the aerogel composite coiled material (10) is fixedly arranged above the unwinding support (101);

the conveying mechanism (2) comprises a conveying support (201), a plurality of second roller shafts (202) are fixedly mounted above the conveying support (201), and a plurality of transmission assemblies (6) are also fixedly mounted above the conveying support (201);

the dust collection mechanism (3), the dust collection mechanism (3) is positioned above the conveying mechanism (2);

the winding mechanism (4) comprises a winding support (401) and a winding roller shaft (402), one end of the winding roller shaft (402) is fixedly installed on one side face of the winding support (401), a notch (403) for clamping the end of the aerogel composite coiled material is formed in the winding roller shaft (402), and a pressing assembly (8) for guaranteeing the tightening of the aerogel composite coiled material (10) is fixedly installed on the winding support (401); the winding support (401) is also fixedly provided with a discharging assembly (7);

transport mechanism (5), transport mechanism (5) are including transporting support (501), transport support (501) top fixed mounting has a plurality of fourth roller (502).

2. The rewinding device for aerogel composite rolls as claimed in claim 1, wherein two side faces of said unwinding support (101) are both fixedly provided with a limiting plate (103).

3. A rewinding device for aerogel composite rolls according to claim 1, characterized in that said second rollers (202) are connected to each other by a transmission chain, and a motor for driving said second rollers (202) to rotate is fixedly mounted inside said transport cradle (201).

4. A rewinding device for aerogel composite webs according to claim 3, characterized in that a number of said driving assemblies (6) comprise a lift valve (601), a second roller (202) and a third roller (602), said third roller (602) being rotatably connected to the inner side of the lift valve (601), said third roller (602) being positioned directly above the second roller (202), a driving gap being formed between said third roller (602) and the second roller (202).

5. A rewinding device for aerogel composite webs according to claim 4, characterized in that said second roller (202) rotates counter to said third roller (602).

6. A rewinding device for aerogel composite rolls according to claim 1, characterized in that said pressing assembly (8) comprises a pressing bracket (801) and a pressing roller (803), said pressing bracket (801) is fixedly mounted above said winding bracket (401), said pressing bracket (801) is fixedly mounted with a pressing cylinder (802), said pressing roller (803) is fixedly mounted at the lower end of said pressing cylinder (802), said pressing roller (803) is located directly above said winding roller (402).

7. A rewinding device for aerogel composite rolls according to claim 1, characterized in that said discharging assembly (7) comprises a discharging cylinder (701), the outer end of the piston rod of said discharging cylinder (701) is fixedly connected with a discharging plate (702), and a sliding rail (703) for sliding said discharging plate (702) is fixedly mounted on said winding support (401).

8. A rewinding device for aerogel composite rolls according to claim 1, characterized in that a supporting component (9) for supporting the other end of the winding roller shaft (402) is fixedly mounted on one side of the winding support (401), the supporting component (9) comprises a supporting frame (903) and a supporting cylinder (902), one end of the supporting frame (903) is hinged to one side of the winding support (401), a supporting roller (904) is fixedly mounted on the other end of the supporting frame (903), a supporting plate (901) is fixedly connected to one side of the winding support (401), one end of the supporting cylinder (902) is hinged to the upper surface of the supporting plate (901), and the other end of the supporting cylinder (902) is hinged to one side of the supporting frame (903).

9. A rewinding device for aerogel composite rolls according to claim 1, characterized in that a meter counter (203) is fixedly mounted on the upper surface of said transferring carriage (201).

10. An operating method for an aerogel composite web rewinding device, characterized in that it comprises the following steps:

s1: placing an aerogel composite web (10) onto a first roller (102);

s2: pulling the end of the aerogel composite coiled material (10), enabling the aerogel composite coiled material (10) to be laid on the second roll shaft (202), and enabling the aerogel composite coiled material (10) to penetrate through a transmission gap formed between the third roll shaft (602) and the second roll shaft (202);

s3: adjusting the lifting valve (601) to enable the third roller shaft (602) to compress the aerogel composite coiled material (10);

s4: inserting the end of the aerogel composite coiled material (10) into a notch (403) of a winding roller shaft (402), starting a supporting cylinder (902), and tightly pressing a supporting roller (904) at one end of a supporting frame (903) against the peripheral side surface of one end of the winding roller shaft (402);

s5: starting the rolling roller shaft (402) to rewind the aerogel composite coiled material (10), and simultaneously starting the pressing cylinder (802) to enable the pressing roller shaft (803) to abut against the outer side surface of the aerogel composite coiled material (10);

s6: after rolling, starting a pressing cylinder (802), and pulling up a pressing roller shaft (803) until the pressing roller shaft is not contacted with the aerogel composite coiled material (10); starting a supporting cylinder (902) and contracting the supporting frame (903) to the lowest position;

s7: the unloading cylinder (701) is started to push the unloading plate (702), and the unloading plate (702) pushes the aerogel composite coiled material (10) to the transfer mechanism (5) from the rolling roller shaft (402) to be packaged and shipped.

Technical Field

The invention belongs to the technical field of aerogel composite coiled material production, and particularly relates to a rewinding device for an aerogel composite coiled material and an operation method.

Background

The aerogel composite rolling felt is a flexible thermal insulation material which is formed by compounding silicon dioxide aerogel serving as a main body material with reinforcing materials such as fiber felt and the like through a special processing technology. The aerogel felt is mainly applied to the fields of industrial pipelines, storage tanks, industrial furnace bodies, heat-insulating sleeves, high-temperature steam pipelines and the like by virtue of excellent heat-insulating and heat-insulating properties. The composite aerogel roll felt produced by the high-temperature supercritical process needs to be dried in the production process, the temperature of the composite aerogel roll felt after drying is very high, and the temperature of a central winding reel is nearly 200 ℃, so that the composite aerogel roll needs to be spread out for heat dissipation. At present, the heat dissipation process adopts a mode of manually spreading out and then manually rolling up, but the weight of the whole aerogel composite roll felt reaches about 100Kg, the manual operation is time-consuming and labor-consuming, and the spread aerogel felt needs to occupy a large amount of area, so that the production cost is increased.

The utility model discloses a current chinese utility model patent "a compound coiled material rewinding unit of aerogel," the publication number is CN212711969U, including the gallows, the gallows top is provided with the spout, the supporting hoisting accessory that is provided with in the spout, the gallows lower part is provided with the support frame, the support frame left part is provided with fixing device, the support frame right part has set gradually feeding roller and a plurality of nip rolls, one of them nip roll top is provided with meter rice ware, the below of support frame is provided with the hydraulic pressure station, the right-hand rewinding platform that is provided with of support frame, the left side of rewinding platform is provided with the probe of rectifying, rewinding platform bottom both sides are provided with the guide rail, the guide rail is laid on the guide rail frame, the guide rail is connected with the hydro-cylinder, rewinding bench side is fixed with the bearing frame, the bearing frame rotates and is connected with the machine of rolling up, the side of the machine of rolling up is provided with the motor, the motor is installed on the lateral wall of rewinding platform. The utility model discloses a can dispel the heat to the aerogel through the rewinding, but the structure is comparatively complicated, complex operation, and is difficult for taking out behind the rewinding, uses the restriction.

Disclosure of Invention

The invention aims to provide a rewinding device for an aerogel composite coiled material and an operation method, and the rewinding device and the operation method solve the problems that the existing production process needs to manually spread the aerogel composite coiled material for heat dissipation and then manually wind the aerogel composite coiled material, so that time and labor are wasted; by arranging the transfer mechanism, the problems that manual taking out and transferring are time-consuming and labor-consuming at present are solved, and meanwhile, damage to the aerogel composite coiled material is reduced; through setting up dust absorption mechanism, get rid of aerogel felt surface dust, solve gel felt surface dust and harm human body and environmental problem.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a rewinding device for an aerogel composite coiled material, which comprises an unreeling mechanism, a conveying mechanism, a dust collecting mechanism, a reeling mechanism and a transferring mechanism, wherein the unreeling mechanism comprises an unreeling support, and a first roller shaft for placing the aerogel composite coiled material is fixedly arranged above the unreeling support. Transport mechanism is including conveying the support, conveying support top fixed mounting has a plurality of second rollers, conveying support top still fixed mounting has a plurality of drive assembly. The dust collection mechanism is positioned above the conveying mechanism. Winding mechanism includes rolling support and rolling roller, the one end fixed mounting of rolling roller is in rolling support side, the rolling roller is opened there is the notch that blocks the compound coiled material end of aerogel, the last fixed mounting of rolling support has the subassembly that compresses tightly that the compound coiled material of assurance aerogel tightens up. And the winding support is also fixedly provided with a discharging assembly. Transport mechanism is including transporting the support, transport support top fixed mounting has a plurality of fourth roller.

Further, unreel the equal fixed mounting of support both sides face and have the limiting plate, avoid the compound coiled material of aerogel to take place the skew from unreeling mechanism to transport mechanism transmission in-process.

Furthermore, a plurality of second roller passes through driving chain interconnect, fixed mounting has in the conveying support and drives a plurality of second roller pivoted motor, provides the partly power of conveying to line body rear for aerogel composite coiled material on transport mechanism to make aerogel composite coiled material atress even.

Further, it is a plurality of transmission assembly includes lift valve, second roller and third roller, third roller rotation connection is at the lift valve medial surface, the third roller is located directly over the second roller, form the transmission clearance between third roller and the second roller, the compound coiled material of transmission clearance air feed gel passes, and the lift valve drives the compound coiled material of third roller compaction aerogel, provides bigger frictional force for the compound coiled material of aerogel transmission on transport mechanism.

Further, the second roll shaft and the third roll shaft rotate in opposite directions to drive the aerogel composite coiled material to drive backwards.

Further, compress tightly the subassembly including compressing tightly the support and compressing tightly the roller, compress tightly support fixed mounting in rolling support top, fixed mounting has the cylinder that compresses tightly on compressing tightly the support, compress tightly roller fixed mounting and compress tightly the cylinder lower extreme, compress tightly the roller and be located directly over the rolling roller.

Further, the subassembly of unloading is including the cylinder of unloading, the piston rod outer end fixedly connected with stripper of the cylinder of unloading, fixed mounting has the gliding slide rail of confession stripper on the rolling support, and the guarantee stripper promotes the ride comfort of the compound coiled material of aerogel.

Further, a rolling support side fixed mounting has a supporting component who is used for supporting another tip of rolling roller axle, supporting component includes support frame and support cylinder, a support frame tip is articulated with rolling support side, another tip fixed mounting of support frame has the supporting roller wheel for reduce the rotation frictional force of rolling roller axle. A supporting plate is fixedly connected to one side face of the winding support, one end of the supporting cylinder is hinged to the upper surface of the supporting plate, and the other end of the supporting cylinder is hinged to one side face of the supporting frame. Supporting component and the side butt all around of rolling roller axle tip in the rolling process of rolling roller axle provide ascending holding power for the rolling roller axle, avoid the rolling roller axle to receive the pressure deformation of aerogel composite coiled material. Support assembly is unloading simultaneously, but the decline shrink for the compound coiled material of aerogel removes to the transport mechanism from the winding mechanism and gives out the space.

Further, conveying support upper surface fixed mounting has the meter rice ware, realizes the measurement control to the compound coiled material length of aerogel and weight, ensures the uniformity of every compound coiled material diameter of aerogel, weight.

An operating method for an aerogel composite web rewinding device, comprising the steps of:

s1: placing the aerogel composite coiled material on a first roller shaft;

s2: pulling the end of the aerogel composite coiled material to enable the aerogel composite coiled material to be flatly laid on the second roll shaft, and enabling the aerogel composite coiled material to penetrate through a transmission gap formed between the third roll shaft and the second roll shaft;

s3: adjusting the lifting valve to enable the third roller to press the aerogel composite coiled material;

s4: inserting the end of the aerogel composite coiled material into a notch of the winding roller shaft, starting the supporting cylinder, and tightly abutting a supporting roller at one end of the supporting frame against the peripheral side face at one end of the winding roller shaft;

s5: starting the winding roller shaft to rewind the aerogel composite coiled material, and simultaneously starting the pressing air cylinder to enable the pressing roller shaft to abut against the outer side surface of the aerogel composite coiled material;

s6: after the rolling is finished, starting a pressing cylinder, and pulling up a pressing roller shaft until the pressing roller shaft is not contacted with the aerogel composite coiled material; starting a supporting cylinder, and contracting the supporting frame to the lowest position;

s7: the cylinder of unloading is started to promote the stripper, and the stripper pushes away the composite aerogel coiled material from the winding roller to the transfer mechanism for packing and loading.

The invention has the following beneficial effects:

1. according to the invention, by arranging the conveying mechanism and the winding mechanism, the operation that the aerogel composite coiled material needs to be manually spread for heat dissipation and then manually wound in the existing production process is avoided, time and labor are saved, the product can be conveniently and comprehensively inspected, and the production efficiency and the product quality are improved.

2. According to the invention, by arranging the transfer mechanism, the problems that manual taking out and transferring are time-consuming and labor-consuming at present are solved, the damage of manual carrying to the aerogel composite coiled material is reduced by colleagues, the working intensity of staff is reduced, and the product quality is improved.

3. According to the invention, the dust collection mechanism is arranged above the conveying mechanism, and when the aerogel composite coiled material is spread out and passes through the conveying mechanism, the dust collection mechanism can effectively absorb and remove dust on the surface of the aerogel felt, so that the dust is prevented from scattering into the surrounding space, and the working environment is improved.

4. According to the invention, the length and weight of the aerogel composite coiled material are measured and controlled by arranging the meter counter on the conveying support, and the diameter and weight consistency of each roll of aerogel composite coiled material is ensured.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a rewinding device for aerogel composite rolls according to the present invention;

FIG. 2 is a schematic structural view of the dust removing and collecting mechanism of the present invention;

FIG. 3 is a schematic view of the dust removing and collecting mechanism of the present invention from another perspective;

FIG. 4 is a partial schematic view of FIG. 3;

FIG. 5 is a front view of the winding mechanism;

FIG. 6 is a schematic structural view of the winding mechanism;

fig. 7 is a partial schematic view of fig. 6.

In the drawings, the components represented by the respective reference numerals are listed below:

1-unwinding mechanism, 2-conveying mechanism, 3-dust-absorbing mechanism, 4-winding mechanism, 5-transferring mechanism, 6-transmission assembly, 7-discharging assembly, 8-pressing assembly, 9-supporting assembly, 10-aerogel composite coiled material, 101-unwinding bracket, 102-first roller shaft, 103-limiting plate, 201-conveying bracket, 202-second roller shaft, 401-winding bracket, 402-winding roller shaft, 403-notch, 501-transferring bracket, 502-fourth roller shaft, 601-lifting valve, 602-third roller shaft, 701-discharging cylinder, 702-discharging plate, 703-sliding rail, 801-pressing bracket, 802-pressing cylinder, 803-pressing roller shaft, 901-supporting plate, 902-supporting cylinder, 903-a support frame and 904-a support roller.

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.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Example one

Referring to fig. 1-7, the rewinding device for aerogel composite coiled materials according to the present invention includes an unwinding mechanism 1, a conveying mechanism 2, a dust suction mechanism 3, a winding mechanism 4, and a transferring mechanism 5, wherein the unwinding mechanism 1 includes an unwinding bracket 101, and a first roller 102 for placing an aerogel composite coiled material 10 is fixedly installed above the unwinding bracket 101. The conveying mechanism 2 comprises a conveying support 201, a plurality of second rollers 202 are fixedly mounted above the conveying support 201, the second rollers 202 are connected with each other through a transmission chain, and a motor for driving the second rollers 202 to rotate is fixedly mounted in the conveying support 201.

Wherein, dust absorption mechanism 3 is located transport mechanism 2 tops, spreads the in-process through transport mechanism 2 at aerogel composite coiled material 10, and dust absorption mechanism 3 can effectively absorb aerogel composite coiled material 10 surface dust, avoids the dust to scatter into surrounding space, reaches the effect that improves operational environment.

Referring to fig. 3-4, two transmission assemblies 6 are further fixedly mounted above the conveying bracket 201, and the two transmission assemblies 6 are respectively and fixedly mounted at two ends of the conveying bracket 201. The transmission assembly 6 comprises a lifting valve 601, a second roller 202 and a third roller 602, the third roller 602 is rotatably connected with the inner side surface of the lifting valve 601, the third roller 602 is located right above the second roller 202, and the second roller 202 and the third roller 602 realize reverse rotation through gear transmission. A drive gap is formed between the third roller shaft 602 and the second roller shaft 202. The transmission assembly 6 provides power transmitted to the rear of the line body for the aerogel composite coiled material 10 on the transmission mechanism 2, and enables the aerogel composite coiled material 10 to move backwards at a constant speed.

Referring to fig. 5-6, the winding mechanism 4 includes a winding frame 401 and a winding roller 402, and one end of the winding roller 402 is fixedly mounted on one side of the winding frame 401. The winding roller shaft 402 is provided with a notch 403 for clamping the end of the aerogel composite coiled material, and the end of the aerogel 10 is inserted into the notch 403 to facilitate winding due to certain hardness of the aerogel composite coiled material 10. The compressing assembly 8 for ensuring the tightening of the aerogel composite coiled material 10 is fixedly mounted on the winding support 401, the compressing assembly 8 comprises a compressing support 801 and a compressing roller shaft 803, the compressing support 801 is fixedly mounted above the winding support 401, a compressing cylinder 802 is fixedly mounted on the compressing support 801, the compressing roller shaft 803 is fixedly mounted at the lower end of the compressing cylinder 802, and the compressing roller shaft 803 is positioned right above the winding roller shaft 402. The winding support 401 is also fixedly provided with a discharging component 7. The discharging assembly 7 comprises a discharging cylinder 701, a discharging plate 702 is fixedly connected to the outer end of a piston rod of the discharging cylinder 701, and a sliding rail 703 for sliding the discharging plate 702 is fixedly mounted on the winding support 401.

Referring to fig. 6-7, a supporting assembly 9 for supporting another end of the winding roller shaft 402 is fixedly mounted on one side of the winding frame 401, the supporting assembly 9 includes a supporting frame 903 and a supporting cylinder 902, one end of the supporting frame 903 is hinged to one side of the winding frame 401, another end of the supporting frame 903 is fixedly mounted with a supporting roller 904, one side of the winding frame 401 is fixedly connected with a supporting plate 901, one end of the supporting cylinder 902 is hinged to an upper surface of the supporting plate 901, and another end of the supporting cylinder 902 is hinged to one side of the supporting frame 903. Supporting component 9 and the side butt all around of rolling roller 402 tip in the rolling process of rolling roller 402 provide ascending holding power for rolling roller 402, avoid rolling roller 402 to receive the pressure deformation of aerogel composite coiled material 10. When the device is unloaded, supporting component 9 can descend and contract simultaneously, lets out the space for aerogel composite coiled material 10 removes to transport mechanism 5 from winding mechanism 4.

Referring to fig. 1 to fig. 3, the transferring mechanism 5 includes a transferring bracket 501, and a plurality of fourth rollers 502 are fixedly mounted above the transferring bracket 501, so that the discharging assembly 7 can push the aerogel composite roll 10 to slide onto the transferring mechanism 5.

The invention also provides an operation method for the aerogel composite coiled material rewinding device, which comprises the following steps:

s1: placing the aerogel composite web 10 onto the first roller 102;

s2: pulling the end of the aerogel composite roll 10 to lay the aerogel composite roll 10 flat on the second roll shaft 202, and passing the aerogel composite roll 10 through a transmission gap formed between the third roll shaft 602 and the second roll shaft 202;

s3: adjusting the lifting valve 601 to enable the third roller 602 to tightly press the aerogel composite coiled material 10;

s4: inserting the end of the aerogel composite coiled material 10 into the notch 403 of the winding roller shaft 402, starting the supporting cylinder 902, and tightly pressing the supporting roller 904 at one end of the supporting frame 903 against the peripheral side surface of one end of the winding roller shaft 402;

s5: starting the rolling roller 402 to rewind the aerogel composite coiled material 10, and simultaneously starting the pressing cylinder 802 to enable the pressing roller 803 to abut against the outer side surface of the aerogel composite coiled material 10;

s6: after rolling, starting the pressing cylinder 802, and pulling up the pressing roller shaft 803 until the pressing roller shaft is not contacted with the aerogel composite coiled material 10; starting a supporting cylinder 902, and contracting the supporting frame 903 to the lowest position;

s7: the discharging cylinder 701 is started to push the discharging plate 702, and the discharging plate 702 pushes the aerogel composite coiled material 10 to the transfer mechanism 5 from the winding roller shaft 402 for packaging and shipping.

Example two

Referring to fig. 2, on the basis of the first embodiment, the two side surfaces of the unwinding support 101 are both fixedly provided with the limiting plates 103. Avoid the compound coiled material of aerogel 10 to take place the skew from unwinding mechanism 1 to the transmission in-process of transport mechanism 2.

EXAMPLE III

Referring to fig. 4, a meter counter 203 is fixedly mounted on the upper surface of the conveying support 201. The length and the weight of the aerogel composite coiled material 10 are measured and controlled, and the consistency of the diameter and the weight of each roll of aerogel composite coiled material 10 is guaranteed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.