Pull-up diaper hot welding knife roller mechanism
阅读说明：本技术 一种拉拉裤热焊刀辊机构 (Pull-up diaper hot welding knife roller mechanism ) 是由 林笛 于 2020-05-29 设计创作，主要内容包括：本发明涉及一次性卫生用品设备领域,尤其涉及一种拉拉裤热焊刀辊机构,包括机架、可转动地设于机架上的热刀辊、可转动地设于机架上的热光辊,所述热刀辊包括刀辊轴、套设于刀辊轴上的刀辊体、设于刀辊体两侧的刀辊保护圈,所述刀辊体上向外突出设有三个刀辊凸部,所述热光辊包括光辊轴、套设于光棍轴上的光辊体、设于光辊体两侧的光辊保护圈,所述光棍体上向外突出设有两个光辊凸部,所述光辊凸部的宽度大于刀辊凸部的宽度,所述刀辊凸部的外径小于刀辊保护圈的外径,差值为0.05－0.2mm,所述光辊凸部的外径小于光辊保护圈的外径,差值为0.05－0.2mm。其解决了现有技术中拉拉裤热焊机构存在的热压缝合不牢固或热压缝合产生穿孔的技术问题。(The invention relates to the field of disposable hygienic product equipment, in particular to a hot welding knife roll mechanism for a pull-up diaper, which comprises a rack, a hot knife roll and a hot smooth roll, wherein the hot knife roll is rotatably arranged on the rack, the hot knife roll comprises a knife roll shaft, a knife roll body sleeved on the knife roll shaft, and knife roll protecting rings arranged on two sides of the knife roll body, three knife roll convex parts are outwards protruded from the knife roll body, the hot smooth roll comprises a smooth roll shaft, a smooth roll body sleeved on the smooth roll shaft, and smooth roll protecting rings arranged on two sides of the smooth roll body, two smooth roll convex parts are outwards protruded from the smooth roll body, the width of each smooth roll convex part is larger than that of the knife roll convex part, the outer diameter of each knife roll convex part is smaller than that of each knife roll protecting ring, the difference is 0.05-0.2 mm, and the outer diameter of each smooth roll convex part is smaller than that of each smooth roll protecting ring, and the difference is 0.05-0.2. It has solved among the prior art the hot welding mechanism of the pull-up diaper hot pressing that exists sews up insecure or hot pressing sews up the technical problem that produces the perforation.)
1. The utility model provides a pull-up trousers hot welding rotor mechanism, includes the frame, rotationally locates the hot rotor in the frame, rotationally locates the hot smooth roll in the frame, its characterized in that: the hot knife roll comprises a knife roll shaft, a knife roll body sleeved on the knife roll shaft, and knife roll protection rings arranged on two sides of the knife roll body, wherein three knife roll convex parts are outwards protruded from the knife roll body, two knife roll electric heating pipe holes are formed in the positions, located on the knife roll convex parts, of the knife roll body along the axial direction, a knife roll copper pipe is sleeved in each knife roll electric heating pipe hole, a knife roll electric heating pipe is arranged in each knife roll copper pipe, more than three knife roll thread heat dissipation holes are formed in one side, located on the axis, of each knife roll electric heating pipe hole in the knife roll body, a knife roll thermocouple hole is formed in each knife roll convex part, a knife roll thermocouple is arranged in each knife roll thermocouple hole, a circle center connecting line of each knife roll electric heating pipe hole, a circle center connecting line of each knife roll thread heat dissipation hole, and a circle connecting line of each knife roll electric heating pipe hole are respectively linear, The circle center connecting line of each electric heating couple hole and the circle center connecting line of each knife roll thread heat dissipation hole are respectively arranged in parallel, one side of the knife roll copper pipe close to the axis of the knife roll shaft is provided with a tooth-shaped recess, one side of the knife roll copper pipe far away from the axis of the knife roll shaft is provided with a circular arc protrusion, the circular arc recess matched with the circular arc protrusion is arranged in the knife roll electric heating pipe hole, two sides of each knife roll convex part are respectively provided with a bolt hole communicated with the knife roll electric heating pipe hole, each bolt hole is provided with a locking bolt used for locking the knife roll copper pipe, the knife roll convex part is provided with a positive integer number of grooves vertical to the axis of a rotating shaft, each groove is arranged at intervals along the axial direction of the rotating shaft, the hot and light roll comprises a light roll shaft, a light roll body sleeved on the light roll shaft and light roll protection rings arranged at two sides of the light roll body, the outer diameter of the knife roll convex part is smaller than the outer diameter of the knife roll protection ring by 0.05-0.2 mm, and the outer diameter of the smooth roll convex part is smaller than the outer diameter of the smooth roll protection ring by 0.05-0.2 mm.
2. A pull-pant thermal welding knife roller mechanism according to claim 1, characterized by: the structure of the smooth roller body is the same as that of the knife roller body.
3. A pull-pant thermal welding knife roller mechanism according to claim 1, characterized by: the utility model discloses a roll body, including the sword roller screw thread louvre, the side of sword roller body is located and is equipped with the wind-guiding screw rod on each sword roller screw thread louvre on the side with threaded connection, each wind-guiding screw rod include with sword roller screw thread louvre threaded connection's screw portion, be located the air inlet cell body in the roll body outside, be located the wind-guiding blade of roll body external connection air inlet cell body, be equipped with the air intake along the axial in the screw portion, be equipped with the air inlet duct on the air inlet cell body, be equipped with the wind-guiding groove on the wind-guiding blade, the wind-guiding groove is linked together with the air inlet duct.
4. A pull-pant thermal welding knife roller mechanism according to claim 3, characterized in that: the other side of the cutter roll body is provided with a balance screw rod in threaded connection with the cutter roll thread heat dissipation holes, and the middle of the balance screw rod is provided with an air outlet communicated with the cutter roll thread heat dissipation holes and the outside atmosphere.
5. A pull-pant thermal welding knife roller mechanism according to claim 4, characterized in that: the weight of the balance screw is 1-1.2 times of that of the air guide screw.
6. A pull-pant thermal welding knife roller mechanism according to claim 5, wherein: the structure of the balance screw is the same as that of the air guide screw.
Technical Field
The invention relates to the field of disposable sanitary product equipment, in particular to a hot welding knife roller mechanism for pull-up pants.
Background
At present, the applicant is in chinese patent No.: ZL201620025330.0 discloses a hot embossing knife rest device, including the knife rest, go up the rotor assembly, lower rotor assembly, first pushing mechanism, second pushing mechanism, first guide arm, the second guide arm, first spring, the second spring, first adjustment mechanism and second adjustment mechanism, but go up rotor assembly both ends and be connected with first adjustment mechanism and second adjustment mechanism respectively and vertical direction adjusting position locate between left side board and the right side board, but the other end of first guide arm and the other end of second guide arm respectively with lower rotor assembly both ends fixed connection and vertical direction adjusting position locate between left side board and the right side board, the one end that goes up the rotor assembly and be located the left side board passes through first spring and the vertical direction flexonics of lower rotor assembly left end, the one end that goes up the rotor assembly and be located the right side board passes through second spring and the vertical direction right-hand member flexonics of lower rotor assembly. The invention solves the problems of unstable structure, short service life and the like of the existing hot embossing knife rest device.
The above-mentioned patent discloses the basic structure of the prior embossing blade holder, in the field of disposable hygienic articles, the embossing and thermo-compression sewing are substantially uniform in structure, aiming at achieving thermoplastic deformation or thermoplastic adhesion of the layered material by rolling between heated rollers. In the pull-up diaper, the waistline both ends need carry out hot pressing and sew up, but because its thickness often is thicker, again because possess elastic sheet or elasticity rubber band in the waistline, can make the thickness of material increase, and probably make the material take place the pincher trees, sew up just to the hot pressing of waistline and produce great difficulty like this, appear hot pressing easily and sew up insecure situation, cause waste product, substandard product. This drawback is particularly evident in adult pull-up diaper products.
The applicant also made relevant research and development attempts to solve the problem, such as increasing the heating temperature, so as to increase the power and efficiency of hot pressing and realize effective hot pressing and sewing. However, after the temperature is increased, local holes are often generated at the hot welding positions on the surface of the product, so that the product has defects and forms waste products.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides a thermal welding knife roller mechanism for the pull-up diaper, which solves the technical problems that the thermal welding mechanism for the pull-up diaper in the prior art is not firm in hot-press sewing or perforated in the hot-press sewing.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a pull-up trousers thermal welding rotor mechanism, includes the frame, rotationally locates the hot rotor in the frame, rotationally locates the hot-light roller in the frame, hot rotor includes that rotor shaft, cover locate rotor shaft on the rotor shaft, locate the rotor guard circle of rotor shaft both sides, the last outside salient of rotor shaft is equipped with three rotor convex part, rotor convex part department that lies in the rotor shaft is equipped with two rotor electric heat tube holes along axial direction, rotor electric heat tube hole endotheca is equipped with rotor copper pipe, be equipped with the rotor electric heat pipe in the rotor copper pipe, one side that rotor electric heat tube hole is close to the axle center in the rotor shaft is equipped with more than three rotor screw thread louvre, and the outside that lies in two rotor electric heat tube holes on each rotor convex part is equipped with rotor thermocouple hole, rotor thermocouple downthehole is equipped with rotor thermocouple, the connecting wire in the centre of a circle of each rotor electric heat tube hole, the connecting wire in the centre of a circle of, The circle center connecting lines of the knife roll threaded heat dissipation holes are respectively in a straight line shape, the circle center connecting line of the knife roll electric heating pipe holes, the circle center connecting line of the electric thermocouple holes and the circle center connecting line of the knife roll threaded heat dissipation holes are respectively arranged in parallel, one side, close to the axis of the knife roll shaft, of the knife roll copper pipe is provided with a toothed recess, one side, away from the axis of the knife roll shaft, of the knife roll copper pipe is provided with an arc protrusion, the arc recess matched with the arc protrusion is arranged in the knife roll electric heating pipe holes, bolt holes communicated with the knife roll electric heating pipe holes are respectively arranged on two sides of each knife roll convex part, locking bolts used for locking the knife roll copper pipe are arranged on each bolt hole, positive integer numbers of grooves perpendicular to the axis of the rotating shaft are arranged on the knife roll convex part at intervals along the axial direction of the rotating shaft, and the thermo-optical roller comprises, the smooth roll body is provided with two smooth roll convex parts protruding outwards, the width of each smooth roll convex part is larger than that of each knife roll convex part, the outer diameter of each knife roll convex part is smaller than that of each knife roll protection ring, the difference value is 0.05-0.2 mm, and the outer diameter of each smooth roll convex part is smaller than that of each smooth roll protection ring, and the difference value is 0.05-0.2 mm.
Further, the structure of the smooth roller body is the same as that of the knife roller body.
Further, be located on each rotor thread louvre on a side of rotor body and be equipped with air guide screw with threaded connection, each air guide screw includes the screw portion with rotor thread louvre threaded connection, be located the air inlet cell body in the roll body outside, be located the wind-guiding blade of roll body external connection air inlet cell body, be equipped with the air intake along the axial in the screw portion, be equipped with the air inlet duct on the air inlet cell body, be equipped with the wind-guiding groove on the wind-guiding blade, the wind-guiding groove is linked together with the air inlet duct, the air inlet duct is linked together with the air intake, and when rotor clockwise rotation, the wind-guiding blade guide air current gets into in the heat.
Further, a balance screw is arranged on the other side face of the cutter roller body and positioned on each cutter roller thread heat dissipation hole in a threaded connection mode, and an air outlet communicated with the cutter roller thread heat dissipation holes and the outside atmosphere is formed in the middle of the balance screw.
Furthermore, the weight of the balance screw is 1-1.2 times of that of the air guide screw.
Furthermore, the structure of the balance screw is the same as that of the air guide screw.
By adopting the technical scheme, the invention has the beneficial effects that:
1. this scheme is through the hot knife roller and hot smooth roller's cooperation realize the hot pressing of pull-up diaper and sew up, and wherein hot knife roller is formed by the assembly of sword roller axle, the sword roller body, the three part of sword roller guard circle, and wherein the sword roller axle adopts Cr12 material vacuum heat treatment to improve hardness and guarantees that microcosmic runout can not appear in use, improves the stability of the circle of whole hot knife roller beating. The cutter roller protective ring and the cutter roller body adopt high-speed tool steel for vacuum heat treatment and cryogenic treatment, so that the hardness of the material used in practice is greatly improved, and the material has better toughness.
In this scheme, hot knife roller possesses three rotor convex part, hot smooth roller possesses two smooth roller convex parts, and hot knife roller can set up to the same with hot smooth roller's diameter, and the rotational speed also sets up to the same, makes a rotor convex part only can fix like this and roll each other with a smooth roller convex part and cut, can set up different decorative patterns on the rotor convex part of difference like this and satisfy customer's demand, also can carry out corresponding setting on the smooth roller convex part of difference and realize the hot pressing to the product of different thickness. This arrangement also solves the problem of dynamic balancing. The existing hot-pressing mechanism usually adopts a mode of 1 circle and 1 piece, so that the improvement on the precision can be effectively realized, but if one smooth roller convex part or one knife roller convex part is adopted, the jumping can be generated during the rotation, and particularly during the high-speed operation, the jumping can correspondingly influence the service life of the hot knife roller or the hot smooth roller. The scheme perfectly solves the three problems of large diameter of the hot knife roller or the hot smooth roller, poor dynamic balance and troublesome pattern switching.
The grooves on the convex part of the knife roll are produced by engraving under the hardness regulation of HRC60 degrees or above, so that the groove area is ensured not to crack caused by processing and then heat treatment, and the teeth are not formed to be broken in the subsequent use, and the teeth formed between two adjacent groove areas have a trapezoidal shape with a narrow top and a wide bottom, so that the service life of the teeth can be effectively prolonged. And adopt recess processing to form the tooth, can realize the integral, improve intensity, avoided utilizing the bolt fastening to cause in the embedding mode that the unharmful situations such as pine takes off, fracture take place.
The design of the electric heating pipe hole of the double knife rolls ensures that the heating temperature is more uniform than that of a single electric heating pipe, the mode of the copper pipe of the inserted knife roll is adopted for ensuring the uniform contact of the electric heating pipe of the knife roll and the knife roll body, and the principle that the coefficient of thermal expansion of copper is higher than that of steel is utilized to ensure that the copper pipe of the knife roll is in very uniform contact with the electric heating pipe and the roll body and improve the working efficiency of the electric heating pipe. And one side that the copper pipe of rotor is close to the axle center of rotor shaft is equipped with the cusp and caves in, one side that the copper pipe of rotor was kept away from the axle center of rotor shaft is equipped with the circular arc arch, the effect that the circular arc arch was stood in and is realized the installation screens, and the area of contact improves, and the heat transfer is made things convenient for, and the setting of cusp sunken, can reduce area of contact, reduce heat transfer, and like this, can make the heating effect of rotor convex part better, and its heat is comparatively concentrated, reduce the heat transmission to the speed of rotor shaft of electric heat roller, thereby effectively improve the utilization ratio, protect the.
In addition, the arrangement of the bolt holes and the locking bolts can effectively realize the locking of the knife roll copper pipe and the knife roll electric heating pipe.
In addition, the circle center connecting lines of the electric heating pipe holes of the cutter rollers, the circle center connecting lines of the thermocouple holes and the circle center connecting lines of the thread radiating holes of the cutter rollers are respectively in a linear shape, and the circle center connecting lines of the electric heating pipe holes of the cutter rollers, the circle center connecting lines of the thermocouple holes and the circle center connecting lines of the thread radiating holes of the cutter rollers are respectively arranged in parallel.
The outer diameter of the knife roll convex part is smaller than the outer diameter of the knife roll protection ring, the difference is 0.05-0.2 mm, the outer diameter of the smooth roll convex part is smaller than the outer diameter of the smooth roll protection ring, and the difference is 0.05-0.2 mm, so that the protection of the knife roll convex part and the smooth roll convex part can be effectively realized.
2. Because the diameter of rotor thread louvre is very little in fact, and length is great, and its heat dissipation is difficult relatively, and the drainage to the wind can be realized to the setting of wind-guiding screw rod to effectively improve the radiating effect, and this louvre is the screw thread setting, can effectively improve heat radiating area, thereby the cooperation wind-guiding screw rod realizes the improvement of effectual heat dispersion.
3. The setting of balanced screw rod, aim at realize dynamic balance, it can not carry out the drainage to wind and get into rotor thread louvre. The structure of the balance screw rod can be the same as that of the air guide screw rod. And because the induced air state can make the air guide screw bear certain wind pressure, set up the weight of balanced screw rod as 1-1.2 times of air guide screw rod weight, can effectively realize the balance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of a hot knife roll;
FIG. 3 is a schematic cross-sectional structural view of the present invention;
FIG. 4 is an enlarged schematic view of the electric heating tube hole of the knife roll and the thermocouple hole of the knife roll;
fig. 5 is a schematic structural view of the air guide screw;
FIG. 6 is a schematic diagram of the left side view of FIG. 5;
FIG. 7 is a schematic view of the structure of the wind-guiding screw, the balancing screw and the threaded heat-dissipating hole of the knife roll;
fig. 8 is an enlarged view at a in fig. 2.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 8, the present embodiment provides a pull-up diaper thermal welding knife roller mechanism, including the frame, rotationally locate hot knife roller 1 in the frame, rotationally locate hot smooth roller 2 in the frame, hot knife roller 1 includes
The structure of the light roller body 22 is the same as that of the
Lie in on each sword roller
Wherein the arrows shown in fig. 5 are the flow directions of the air flows.
In the above scheme, the weight of the balance screw may be 1-1.2 times of the weight of the air guide screw.
The invention has the beneficial effects that:
1. this scheme is through the hot knife roller and hot smooth roller's cooperation realize the hot pressing of pull-up diaper and sew up, and wherein hot knife roller is formed by the assembly of sword roller axle, the sword roller body, the three part of sword roller guard circle, and wherein the sword roller axle adopts Cr12 material vacuum heat treatment to improve hardness and guarantees that microcosmic runout can not appear in use, improves the stability of the circle of whole hot knife roller beating. The cutter roller protective ring and the cutter roller body adopt high-speed tool steel for vacuum heat treatment and cryogenic treatment, so that the hardness of the material used in practice is greatly improved, and the material has better toughness.
In this scheme, hot knife roller possesses three rotor convex part, hot smooth roller possesses two smooth roller convex parts, and hot knife roller can set up to the same with hot smooth roller's diameter, and the rotational speed also sets up to the same, makes a rotor convex part only can fix like this and roll each other with a smooth roller convex part and cut, can set up different decorative patterns on the rotor convex part of difference like this and satisfy customer's demand, also can carry out corresponding setting on the smooth roller convex part of difference and realize the hot pressing to the product of different thickness. This arrangement also solves the problem of dynamic balancing. The existing hot-pressing mechanism usually adopts a mode of 1 circle and 1 piece, so that the improvement on the precision can be effectively realized, but if one smooth roller convex part or one knife roller convex part is adopted, the jumping can be generated during the rotation, and particularly during the high-speed operation, the jumping can correspondingly influence the service life of the hot knife roller or the hot smooth roller. The scheme perfectly solves the three problems of large diameter of the hot knife roller or the hot smooth roller, poor dynamic balance and troublesome pattern switching.
The grooves on the convex part of the knife roll are produced by engraving under the hardness regulation of HRC60 degrees or above, so that the groove area is ensured not to crack caused by processing and then heat treatment, and the teeth are not formed to be broken in the subsequent use, and the teeth formed between two adjacent groove areas have a trapezoidal shape with a narrow top and a wide bottom, so that the service life of the teeth can be effectively prolonged. And adopt recess processing to form the tooth, can realize the integral, improve intensity, avoided utilizing the bolt fastening to cause in the embedding mode that the unharmful situations such as pine takes off, fracture take place.
The design of the electric heating pipe hole of the double knife rolls ensures that the heating temperature is more uniform than that of a single electric heating pipe, the mode of the copper pipe of the inserted knife roll is adopted for ensuring the uniform contact of the electric heating pipe of the knife roll and the knife roll body, and the principle that the coefficient of thermal expansion of copper is higher than that of steel is utilized to ensure that the copper pipe of the knife roll is in very uniform contact with the electric heating pipe and the roll body and improve the working efficiency of the electric heating pipe. And one side that the copper pipe of rotor is close to the axle center of rotor shaft is equipped with the cusp and caves in, one side that the copper pipe of rotor was kept away from the axle center of rotor shaft is equipped with the circular arc arch, the effect that the circular arc arch was stood in and is realized the installation screens, and the area of contact improves, and the heat transfer is made things convenient for, and the setting of cusp sunken, can reduce area of contact, reduce heat transfer, and like this, can make the heating effect of rotor convex part better, and its heat is comparatively concentrated, reduce the heat transmission to the speed of rotor shaft of electric heat roller, thereby effectively improve the utilization ratio, protect the.
The two thermocouples monitor the actual temperature of the electric heating tubes in real time and adjust the actual temperature to realize mutual compensation.
The cutter roll thread heat dissipation hole is used for isolating temperature downward conduction in operation, and the problem that the uneven welding effect or burning-out of the surface of a welding block caused by overhigh temperature of the middle part of the convex part of the cutter roll and slightly low temperature of the two sides is solved by utilizing the quick heat dissipation of the characteristic that air flow generates vortex under the action of the thread, so that the integral temperature balance expansion coefficient of the hot welding block is consistent, and the welding quality is improved.
The side face of the convex part of the knife roll adopts a pyramid shape design, the upper part is big in size, the lower part is big in size, the width dimension of the uppermost part is the same as the dimension of the welding area of the product, and then the knife roll extends downwards and vertically, so that the pull-up diaper product is ensured to be in contact with the tooth part only through the non-woven fabric of the welding area during use, and the peripheral area cannot be extruded by the roll surface to cause the problems of product welding deflection or phase deviation and. The whole structure strength of the whole upper part is improved by extending the circular arcs downwards to the two sides, so that the micro-deformation caused by too thin running materials under long-term heavy load or the damage caused by cracks is avoided. The tooth profile of the convex portion of the cutter roller is further blunted by a 45-degree chamfer on both sides in the circumferential direction, so that the intensity and sound of impact when the upper and lower rollers are in contact are further reduced.
In addition, the arrangement of the bolt holes and the locking bolts can effectively realize the locking of the knife roll copper pipe and the knife roll electric heating pipe.
In addition, the circle center connecting lines of the electric heating pipe holes of the cutter rollers, the circle center connecting lines of the thermocouple holes and the circle center connecting lines of the thread radiating holes of the cutter rollers are respectively in a linear shape, and the circle center connecting lines of the electric heating pipe holes of the cutter rollers, the circle center connecting lines of the thermocouple holes and the circle center connecting lines of the thread radiating holes of the cutter rollers are respectively arranged in parallel.
The outer diameter of the knife roll convex part is smaller than the outer diameter of the knife roll protection ring, the difference is 0.05-0.2 mm, the outer diameter of the smooth roll convex part is smaller than the outer diameter of the smooth roll protection ring, and the difference is 0.05-0.2 mm, so that the protection of the knife roll convex part and the smooth roll convex part can be effectively realized.
2. Because the diameter of rotor thread louvre is very little in fact, and length is great, and its heat dissipation is difficult relatively, and the drainage to the wind can be realized to the setting of wind-guiding screw rod to effectively improve the radiating effect, and this louvre is the screw thread setting, can effectively improve heat radiating area, thereby the cooperation wind-guiding screw rod realizes the improvement of effectual heat dispersion.
3. The setting of balanced screw rod, aim at realize dynamic balance, it can not carry out the drainage to wind and get into rotor thread louvre. The structure of the balance screw rod can be the same as that of the air guide screw rod. And because the induced air state can make the air guide screw bear certain wind pressure, set up the weight of balanced screw rod as 1-1.2 times of air guide screw rod weight, can effectively realize the balance.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
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