Disclosure of Invention
In order to overcome the defect that the display does not have a protective film with the same size as a screen, so that a protective film larger than the screen is required to be pasted on the screen of the display manually and then cut, and the efficiency is greatly reduced, the invention provides an energy-saving laminating device for processing a curved surface screen.
The technical scheme is that the laminating device for processing the energy-saving curved surface screen comprises a workbench, a first push rod, a first fixing plate, an extrusion plate and a power assembly, wherein the workbench is connected with the power assembly, the power assembly is connected with four first push rods and is used for driving the first push rods to move leftwards or rightwards, the telescopic ends of all the first push rods are fixedly connected with the first fixing plate, the extrusion plate is fixedly connected with the first fixing plate at the left side, the laminating device further comprises an air suction plate, a raw material winding roller, a first motor, a waste material winding roller, a second motor and a cutting assembly, the air suction plate is fixedly connected with all the first push rods at the right side, the raw material winding roller is rotatably connected with the workbench, the first motor is fixedly connected with the output shaft of the first motor and the raw material winding roller, the waste material winding roller is rotatably connected with the workbench, the second motor is fixedly connected with the output shaft of the second motor and is fixedly connected with the waste material winding roller, and the cutting assembly is connected with the cutting assembly and is used for cutting off a film which is not laminated with the display screen.
More preferably, the cutting assembly comprises a second slide rail, second slide blocks, second push rods, second fixing plates, first cutters, first spring telescopic rods, third fixing plates and first rollers, wherein the front part and the rear part of the workbench are fixedly connected with the second slide rail, all the second slide rails are fixedly connected with the two second slide blocks, all the second slide blocks are fixedly connected with the second push rods, the telescopic ends of all the second push rods are fixedly connected with the second fixing plates, all the second fixing plates are fixedly connected with the first cutters, all the second fixing plates are fixedly connected with the first spring telescopic rods, all the telescopic ends of all the first spring telescopic rods are fixedly connected with the third fixing plates, and all the third fixing plates are rotatably connected with the first rollers.
More preferably, the cutting assembly further comprises a third sliding rail, third sliding blocks, third push rods, fourth fixing plates, third spring telescopic rods, sixth fixing plates, third idler wheels and second cutters, wherein the left part and the right part of the workbench are fixedly connected with the third sliding rail, all the third sliding rails are fixedly connected with the third sliding blocks, all the third sliding blocks are fixedly connected with the third push rods, all the telescopic ends of the third push rods are fixedly connected with the fourth fixing plates, all the fourth fixing plates are fixedly connected with the third spring telescopic rods, all the telescopic ends of all the third spring telescopic rods are fixedly connected with the sixth fixing plates, all the sixth fixing plates are rotatably connected with the third idler wheels, all the fourth fixing plates are fixedly connected with the second cutters, and the second cutters are in sliding connection with the sixth fixing plates.
The cutting edge angle unit comprises a fourth push rod, a fifth fixing plate, a second spring telescopic rod, a third cutter and fixing strips, the workbench is fixedly connected with the fourth push rod, the telescopic end of the fourth push rod is fixedly connected with the fifth fixing plate, the fifth fixing plate is fixedly connected with the second spring telescopic rod, the second spring telescopic rod is fixedly connected with the third cutter, and the third cutter is L-shaped.
More preferably, the device further comprises second rollers, and all the first fixing plates are rotatably connected with two second rollers.
More preferably, the cutting edge angle unit further comprises an extrusion block, the fifth fixing plate is fixedly connected with the extrusion block, and the extrusion block is in sliding connection with the third cutter.
More preferably, the screen also comprises an air bag, wherein all the fixing strips are fixedly connected with the air bag, the air bag is externally connected with an air pump, the air bag is in a strip shape, and the front side surface and the rear side surface of the front air bag and the rear air bag are respectively aligned with the front side surface and the rear side surface of the screen.
More preferably, the waste material winding device further comprises a first motor and a second motor, wherein all third fixing plates are fixedly connected with the first motor, the output shafts of the first motor are fixedly connected with the first roller, all first fixing plates are fixedly connected with the second motor, the output shafts of the second motor are fixedly connected with the adjacent second roller, the position where the protective film is broken is fixed through the first roller and the second roller, and the first roller and the second roller are driven to rotate through the first motor and the second motor to pull the protective film to move to the waste material winding roller for winding.
More preferably, the device further comprises a first fixing cloth and a second fixing cloth, wherein the first fixing cloth is wound on the first roller, a magnetic attraction metal sheet is arranged on the first fixing cloth, the second fixing cloth is wound on the second roller, a magnet sheet is arranged on the second fixing cloth, the first fixing cloth and the second fixing cloth are matched with each other, an electromagnet part is arranged below the fixing strip, and one end of the head of the first fixing cloth is fixed through the electromagnet part.
More preferably, the device further comprises a fifth push rod, a pushing plate and a rolling plate, wherein the workbench is fixedly connected with two fifth push rods which are distributed front and back, the telescopic ends of all the fifth push rods are fixedly connected with the pushing plate together, the workbench is rotatably connected with the rolling plate, and the rolling plate is positioned above the pushing plate.
Compared with the prior art, the invention has the advantages that the protective film is sucked and attached to the screen through the air suction plate, and dust on the protective film and the screen is sucked and removed through the air suction of the air suction plate, thereby preventing air bubbles from being generated when the protective film and the screen are attached due to dust;
According to the invention, the first cutter, the second cutter and the third cutter are used for cutting off part of the protective film which is not attached to the screen, and the third cutter is used for cutting off the right-angle edge on the protective film, so that a complete rectangle is cut off on the protective film by cutting the first cutter and the second cutter, and the first cutter and the second cutter are prevented from cutting more than one point, so that the protective film is easy to break when the raw material winding roller and the waste winding roller rotate;
According to the invention, the cut protection film is partially stretched by the extrusion block, so that the first roller and the second roller are prevented from easily driving the cut protection film to move during cutting, and the part of the protection film which is not cut is prevented from tilting;
according to the invention, the broken protecting film is fixed through the second fixing cloth and the first fixing cloth, and then the protecting film is pulled through the rotation of the first roller, so that the broken protecting film is wound by matching with the rotation of the waste winding roller.
Drawings
FIG. 1 is a schematic diagram of a structure of an attaching device for processing an energy-saving curved screen;
FIG. 2 is a schematic view of a first partial structure of an attaching device for processing an energy-saving curved screen according to the present invention;
FIG. 3 is an enlarged view of the portion A of FIG. 2 of the present invention showing an attaching device for energy-saving curved screen processing;
FIG. 4 is a cross-sectional view of a first partial structure of the present invention disclosed for an attaching device for energy-efficient curved screen processing;
FIG. 5 is a sectional view of a second partial structure of the present invention disclosed for an attaching device for energy-efficient curved screen processing;
FIG. 6 is an enlarged view of the portion B of FIG. 5 of the present invention showing an attaching device for energy-saving curved screen processing;
FIG. 7 is a schematic view of a second partial structure of the bonding apparatus for processing an energy-saving curved screen according to the present invention;
Fig. 8 is a schematic view of a third partial structure of the bonding device for processing an energy-saving curved screen according to the present invention.
Wherein the above figures include the following reference numerals: 1-workbench, 2-first push rod, 3-first fixed plate, 4-extrusion plate, 5-suction plate, 5 a-suction port, 6-raw material winding roller, 7-first motor, 8-waste winding roller, 9-second motor, 101-first slide rail, 102-first slide block, 201-second slide rail, 202-second slide block, 203-second push rod, 204-second fixed plate, 205-first cutter, 206-first spring telescopic rod, 207-third fixed plate, 208-first roller, 209-first fixed cloth, 2010-third slide rail, 2011-third slide block, 2012-third push rod, 2013-fourth fixed plate, 2014-third spring telescopic rod, 2015-sixth fixed plate, 2016-third roller, 2017-second cutter, 2018-second roller, 2019-air bag, 2020-second fixed cloth, 211-fourth push rod, 212-fifth fixed plate, 213-second spring telescopic rod, 214-third cutter, 215-extrusion block, 216-fixed bar, 216 a-electromagnet part, 301-fifth push rod, 302-rolling plate, 303-first motor, 304-second motor, 305-pushing plate.
Detailed Description
Although the invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the invention. Those of ordinary skill in the art will recognize that terms such as above, below, upward, downward, etc. are used descriptively of the figures, and do not represent limitations on the scope of the invention, as defined by the appended claims. Any numerical designation such as first or second is merely exemplary and is not intended to limit the scope of the present invention in any way.
Example 1
The laminating device for processing the energy-saving curved screen comprises a workbench 1, a first push rod 2, a first fixing plate 3, an extrusion plate 4 and a power assembly, wherein the workbench 1 is connected with the power assembly, the power assembly is connected with four first push rods 2 which are distributed in a rectangular manner, and the power assembly is used for driving the first push rods 2 to move leftwards or rightwards;
The automatic film cutting device is characterized by further comprising an air suction plate 5, a raw material winding roller 6, a first motor 7, a waste material winding roller 8, a second motor 9 and a cutting assembly, wherein the air suction plate 5 is fixedly connected with all the first push rods 2 on the right, the air suction plate 5 is externally connected with an air pump, a protective film is attached to a screen through the air suction plate 5, the raw material winding roller 6 is rotatably connected to the right of the workbench 1, the first motor 7 is fixedly connected to the right of the workbench 1, an output shaft of the first motor 7 is fixedly connected with the raw material winding roller 6, the waste material winding roller 8 is rotatably connected to the left of the workbench 1, the second motor 9 is connected to the left of the workbench 1 through bolts, the output shaft of the second motor 9 is fixedly connected with the waste material winding roller 8, and the cutting assembly is connected to the workbench 1 and is used for cutting films which are not attached to the screen of a display.
The power assembly comprises a first sliding rail 101 and a first sliding block 102, wherein the upper part of the workbench 1 is fixedly connected with two first sliding rails 101 which are distributed front and back, all the first sliding rails 101 are connected with two first sliding blocks 102 in a sliding manner, and all the first sliding blocks 102 are fixedly connected with adjacent first push rods 2.
Firstly, manually placing a curved surface display on a workbench 1, then manually pasting the head end of a protective film wound on a raw material winding roller 6 on a waste winding roller 8 after penetrating through the upper part of an air suction plate 5 and the lower part of an extrusion plate 4, then pushing a first fixed plate 3 to move downwards through a first push rod 2 on the left, so that the first fixed plate 3 drives the extrusion plate 4 to move downwards, when the extrusion plate 4 contacts a display screen, stopping moving downwards, then driving the extrusion plate 4 to move rightwards through a first sliding block 102, and because the screen of the display is curved, pushing the extrusion plate 4 downwards through the first push rod 2 when the extrusion plate 4 moves rightwards, so that the protective film can be always attached to the screen of the display through the first push rod 2, driving the air suction plate 5 to move leftwards through a first sliding block 102 on the right after the extrusion plate 4 attaches the left end of the screen of the display to a position of five centimeters, and when the air suction plate 5 contacts the extrusion plate 4 to the position of the protective film, and then driving the air suction plate 5 to move leftwards through the extrusion plate 5a and the extrusion plate 5 to attach to the screen of the air suction plate, and the screen of the display screen through the first sliding block 102 when the extrusion plate is further attached to the screen of the screen 4 and the screen of the display screen is attached to the screen through the extrusion plate 102;
Then the part of the protective film which is not stuck with the screen is cut off through the cutting assembly, so that the protective film is cut, then the cut display screen is manually moved down, then a new display screen which is not stuck with the film is manually placed on the workbench 1, and then the waste winding roller 8 and the raw material winding roller 6 are respectively driven to rotate through the first motor 7 and the second motor 9, so that the new protective film which is not cut is unfolded, and the next film sticking is performed.
Example 2
On the basis of embodiment 1, as shown in fig. 5-8, the cutting assembly comprises a second slide rail 201, a second slide block 202, a second push rod 203, a second fixing plate 204, a first cutter 205, a first spring telescopic rod 206, a third fixing plate 207 and a first roller 208, wherein the front part and the rear part of the workbench 1 are fixedly connected with the second slide rail 201, all the second slide rails 201 are slidably connected with the two second slide blocks 202, all the second slide blocks 202 are fixedly connected with the second push rod 203, the telescopic ends of all the second push rods 203 are fixedly connected with the second fixing plate 204, all the second fixing plates 204 are fixedly connected with the first cutter 205, the front side and the rear side of the part, which is not attached with the screen, of the protective film are cut through the first cutter 205, all the second fixing plates 204 are fixedly connected with the first spring telescopic rod 206, the telescopic ends of all the first spring telescopic rods 206 are fixedly connected with the third fixing plate 207, and all the third fixing plates 207 are rotatably connected with the first roller 208.
The cutting assembly further comprises a third slide rail 2010, third slide blocks 2011, third push rods 2012, fourth fixing plates 2013, third spring telescopic rods 2014, sixth fixing plates 2015, third rollers 2016 and second cutters 2017, wherein the left part and the right part of the workbench 1 are all connected with the third slide rail 2010 through bolts, all the third slide rails 2010 are all connected with the third slide blocks 2011 in a sliding mode, all the third slide blocks 2011 are all connected with the third push rods 2012 in a sliding mode, all the telescopic ends of all the third push rods 2012 are all connected with the fourth fixing plates 2013 in a sliding mode, all the fourth fixing plates 2013 are all connected with the third spring telescopic rods 2014 in a sliding mode, all the telescopic ends of all the third spring telescopic rods 2014 are all connected with the sixth fixing plates 2015 in a sliding mode, all the fourth fixing plates 2013 are all connected with the second cutters 2017 in a sliding mode, and the second cutters 2017 are all the second fixing plates 2017 in a sliding mode and are all the sixth fixing plates 2017 in a sliding mode, and the second fixing plates 2017 are all the telescopic ends of all the third fixing plates 2014 are all connected with the sixth fixing plates 2017, and the sixth fixing plates 2014 are all the sixth fixing plates are all used for enabling the left side cutting plates and the right side cutting plates to be used for cutting.
The protective film cutting machine further comprises four cutting edge angle units and fixing strips 216, wherein the workbench 1 is fixedly connected with two fixing strips 216, the cutting edge angle units comprise a fourth push rod 211, a fifth fixing plate 212, a second spring telescopic rod 213, a third cutter 214 and fixing strips 216, the workbench 1 is fixedly connected with the fourth push rod 211, the telescopic end of the fourth push rod 211 is fixedly connected with the fifth fixing plate 212, the fifth fixing plate 212 is fixedly connected with the second spring telescopic rod 213, the second spring telescopic rod 213 is fixedly connected with the third cutter 214, the third cutter 214 is L-shaped, and the third cutter 214 cuts the four corners of the part, which is not attached to the screen, of the protective film, so that the second cutter 2017 and the first cutter 205 are prevented from easily cutting parts outside the right-angle side when cutting the right-angle side, and the protective film is easy to be broken when being pulled.
The protective film cutting machine also comprises second rollers 2018, all the first fixing plates 3 are rotatably connected with the two second rollers 2018, and the non-attached parts of the protective film are fixed through the cooperation of the second rollers 2018 and the first rollers 208, so that cutting can be performed better.
The cutting corner unit further comprises an extrusion block 215, the fifth fixing plate 212 is fixedly connected with the extrusion block 215, the extrusion block 215 is in sliding connection with the third cutter 214, and the cut part of the protective film is stretched again through the extrusion block 215, so that the first roller 208 and the second roller 2018 are prevented from driving the cut part of the protective film to move, and the uncut part of the protective film is prevented from tilting.
The air bag fixing device further comprises an air bag 2019, all fixing strips 216 are fixedly connected with one air bag 2019, the air bag 2019 is externally connected with an air pump, the air bag 2019 is in a long strip shape, the front side face and the rear side face of the air bag 2019 at the front and the rear are respectively aligned with the front side face and the rear side face of the screen, and the air bag 2019 presses the part, around the cutting position, attached to the screen, so that the protective film of the attached part is prevented from being influenced during cutting.
The working steps of the embodiment are that after the protective film is completed, the left and right air bags 2019 are driven to move oppositely through the first sliding block 102, when the left side surface of the air bag 2019 is aligned with the left side surface of the display screen or the right side surface of the air bag 2019 is aligned with the right side surface of the display screen, the movement is stopped, then an air pump externally connected with the air bag 2019 is started, so that air is input into the air bag 2019, the air bag 2019 bulges, and therefore the protective film is pressed against four corner parts of the joint part of the screen through the air bag 2019, and the edge protective film of the corner cannot be tilted when the edge is cut later;
then the fifth fixing plate 212 is pushed to move upwards by the fourth push rod 211, so that the fifth fixing plate 212 drives the second spring telescopic rod 213, the third cutter 214 and the extrusion block 215 to move upwards, and the third cutter 214 is L-shaped, so that the third cutter 214 can cut four corner parts of the joint part of the protective film and the screen;
Then the second slider 202 drives the left and right second push rods 203 to move oppositely, and then the second push rods 203 drive the second fixing plate 204, the first cutters 205, the first spring telescopic rods 206 and all parts connected with the first spring telescopic rods to move oppositely, when the first cutters 205 contact with the third cutters 214, the movement is stopped, then the first slider 102 drives the second rollers 2018 to move above the adjacent first rollers 208 respectively, then the second push rods 203 push the first rollers 208 to move upwards, so that the protective film is fixed on the front side and the rear side of the screen attaching part through the second rollers 2018 and the first rollers 208, the protective film is fixed on the screen attaching part through the air bags 2019, the subsequent cutting of the protective film is facilitated, the first rollers 208 are pressed by the second rollers 2018 after the upward movement is continued, the first roller 208 cannot move upwards continuously, so that the first cutter 205 moves above the first roller 208 after moving upwards continuously, the protection film is pierced by the first cutter 205, the first spring telescopic rod 206 at this time is in a compressed state, then the first cutters 205 at the front and the rear are driven to move towards each other by the second slider 202, the front and the rear sides of the protection film and the attached part of the screen are cut, in the moving process, the first cutters 205 can move along the curved edge of the screen by the first push rod 2 and the second push rod 203, and the protection film of the cut part is in a loose state due to the curved arc shape of the screen, so that the protection film part cut in the moving process of the second roller 2018 and the first roller 208 is pulled to move, the protection film part cut in the non-cut state is extruded by the protection film part cut in the moving process, the protection film which is not cut is tilted, so that the fourth push rod 211 continuously pushes the fifth fixing plate 212 to move upwards in the moving process, the extrusion block 215 is driven to move upwards, the third cutter 214 is contacted with the fixing strip 216, so that the third cutter 214 cannot move upwards, the second spring telescopic rod 213 is in a compressed state, the loose protection film which is cut is stretched again by the upward movement of the extrusion block 215, the movement of the second roller 2018 and the first roller 208 cannot drive the protection film which is cut to move, after the front first cutter 205 and the rear first cutter 205 are contacted, all the first cutters 205 are pushed to move upwards again by the second push rod 203, and the protection film which is positioned between the front first cutter 205 and the rear first cutter 205 is cut, so that the protection film which is not contacted with the front side and the rear side of the screen is cut;
Then, the third push rod 2012 is driven to move forward by the third slider 2011, so that the third push rod 2012 drives the fourth fixing plate 2013, the third spring telescopic rod 2014, the sixth fixing plate 2015 and all parts connected with the fourth fixing plate 2013, the third spring telescopic rod 2014 and all parts are moved forward, when the second cutter 2017 contacts with the third cutter 214 in front, the movement is stopped, then the third roller 2016 is driven to move upward by the third push rod 2012, when the third roller 2016 contacts with the fixing strip 216, the third roller 2016 and the fixing strip 216 fix the left side and the right side of the protecting film and the screen attaching part, then the third push rod 2012 continues to push, so that the second cutter 2017 continues to move upward to pierce the protecting film, then the third slider 2017 drives the second cutter 2017 to move backward, and when the second cutter 2017 contacts with the third cutter 214 in back, the rear is stopped, and the protecting film is cut off from the left side and the right side of the screen attaching part, and the protecting film is cut off.
Example 3
On the basis of embodiment 2, as shown in fig. 2-3 and fig. 4-6, the device further comprises a first motor 303 and a second motor 304, all third fixing plates 207 are connected with a first motor 303 through bolts, the output shafts of the first motor 303 are fixedly connected with a first roller 208, all first fixing plates 3 are fixedly connected with a second motor 304, the output shafts of the second motor 304 are fixedly connected with adjacent second rollers 2018, the position where the protective film is broken is fixed through the first roller 208 and the second roller 2018, and the first roller 208 and the second roller 2018 are driven to rotate through the first motor 303 and the second motor 304 to pull the protective film to move onto the waste winding roller 8 for winding.
The first roller 208 and the second roller 2018 are prevented from moving to break the protective film again by fixing the protective film at the positions where the first roller 208 and the second roller 2018 pass through by the first fixing cloth 209 and the second fixing cloth 2020, the electromagnet part 216a is arranged below the fixing strip 216, and the first end of the first fixing cloth 209 is fixed by the electromagnet part 216 a.
The protective film winding device further comprises a fifth push rod 301, a push plate 305 and a winding plate 302, wherein the workbench 1 is fixedly connected with two fifth push rods 301 which are distributed front and back, the telescopic ends of all the fifth push rods 301 are fixedly connected with the push plate 305 together, the workbench 1 is rotatably connected with the winding plate 302, the winding plate 302 is positioned above the push plate 305, and the broken part of the protective film is attached to the waste winding roller 8 through the winding plate 302, so that the broken part of the protective film is wound.
The working procedure of the above embodiment is that, since the cut protective film is wound up by the rotation of the scrap winding roller 8 and the raw material winding roller 6 after the cutting, and the part of the cut protective film is thinner, the protective film is easily broken after the cutting, so that the protective film cannot continuously run, therefore, after the cutting of the protective film is completed, the first slider 102 drives the front and rear second rollers 2018 to move away from each other, and the second roller 2018 is driven by the second motor 304 to rotate in the moving process, the second stretched fixed cloth 2020 is wound up, when the second roller 8 contacts with the fixed strip 216, the second roller 202 drives the front and rear first rollers 208 to move away from each other, when the first roller 208 moves below the adjacent fixed strip 216, the first roller 208 is stopped to move, then the first roller 208 is pushed upwards by the second push rod 203, when the first roller 208 contacts with the fixed strip 216, the first roller 208 moves away from the fixed strip 216, the first electromagnet 216a can be clamped at the front end of the fixed strip 216 and the fixed strip 209 by the first fixed strip 208, and the first electromagnet 216a can be clamped at the front end of the fixed strip 209 by the fixed strip 209, and the fixed strip end of the first electromagnet 208 can be clamped at the front end of the fixed strip 209 by the fixed by the first fixed strip 209, therefore, the first fixing cloth 209 can be unfolded, when the first roller 208 moves below the second roller 2018, the second roller 2018 is driven to move synchronously with the first roller 208 by the second slider 202, and as the front end of the second fixing cloth 2020 is fixedly connected with the fixing strip 216, the opposite movement of the second roller 2018 can unfold the second fixing cloth 2020, and then the magnet sheet on the second fixing cloth 2020 can absorb the magnetically attractable metal sheet on the first fixing cloth 209, so that the protective film at the passing position of the second roller 2018 and the first roller 208 is fixed, and further, the protective film is prevented from being broken again due to the movement of the second roller 2018 and the first roller 208, and when the front and rear first rollers 208 are contacted with each other, the broken part of the protective film is fixed between the second fixing cloth 2020 and the first fixing cloth 209;
then, all the second rollers 2018 and the first rollers 208 are respectively driven by the first slider 102 and the second slider 202 to move leftwards, and in the moving process, the first rollers 2018 and the first rollers 208 are driven by the first motor 303 and the second motor 304 to rotate, so that the second fixed cloth 2020 and the first fixed cloth 209 at the left are rolled up, the raw material rolling roller 6 and the waste rolling roller 8 are driven by the first motor 7 and the second motor 9 to rotate, so that the cut protective film is rolled up, when the second rollers 2018 at the left are contacted with the fixed strips 216 at the left, the second rollers 2018 and the first rollers 208 are stopped to move leftwards, and then the electromagnet part 216a is closed, so that the electromagnet part 216a is not at the beginning of the first fixed cloth 209, and then the first motor 303 is used for driving the first rollers 208 to rotate, so that the protective film is pulled leftwards, and the waste rolling roller 8 is matched with the rotation of the raw material rolling roller 6, so that the protective film moving leftwards is rolled up, and when the broken rolling plate 302 is positioned on the broken rolling plate 302, the broken protective film is pushed by the broken rolling plate 302 to move towards the waste rolling roller 8, and the broken rolling roller 302 is pushed by the broken rolling plate 302 to move upwards, and the waste film is continuously rolled up, so that the waste film is kept to move upwards in the rolling up by the condition of the broken rolling plate 302.
While the disclosure has been described with respect to only a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.