Disclosure of Invention
Based on this, it is necessary to provide a mask packing device and mask production equipment which are more convenient to pack and ensure packing efficiency, aiming at the problems.
The mask packaging device comprises a feeding component and an ear folding component, wherein the feeding component comprises a moving part and a mask guide part, a guide channel is formed in the mask guide part, the guide channel penetrates through the upper end of the mask guide part to form a stacking opening, a pushing opening penetrates through the lower end of the mask guide part, a feeding channel is formed in the side wall of the mask guide part, the feeding channel is communicated with the guide channel, the feeding channel is used for conveying a mask to the guide channel, the moving part is located below the pushing opening, the moving part can move along the guide channel towards the direction of the stacking opening through the pushing opening, the size of the cross section from the stacking opening to the direction of the pushing opening is smaller than that of the mask, the ear folding component comprises a driving source and an ear folding part, ear folding holes are formed in the side wall of the mask guide part, the ear folding holes are located on one side of the feeding channel facing the stacking opening, and the ear folding part is located on one side of the ear folding opening, and the ear folding part is located on one side of the driving source or the ear folding part.
In one embodiment, the ear folding hole is formed in a position, close to the stacking opening, of the mask air guide piece.
In one embodiment, the number of the ear folding components is two, the two ear folding components are arranged on two opposite sides of the mask flow guiding component, ear folding holes are formed in two opposite side walls of the mask flow guiding component, the ear folding component of each ear folding component can correspondingly penetrate through one ear folding hole, and the ear folding components of the two ear folding components can move relatively or reversely.
In one embodiment, the ear folding assembly further comprises a mounting piece, the mounting piece is mounted on the side wall of the mask flow guiding piece, and the driving source is arranged on the mounting piece.
In one embodiment, the mask packaging device further comprises a blanking assembly, the blanking assembly comprises a pushing piece and a blanking piece, a stacking position is formed at one end of the blanking piece, a blanking level is formed at the other end of the blanking piece, one end of the stacking level is formed by the blanking piece, the mask guide piece is arranged at one side of the stacking opening, a communication hole communicated with the stacking opening is formed in the stacking position, and the pushing piece can reciprocate between the stacking level and the blanking level.
In one embodiment, the communication hole is identical to the mask in size.
In one embodiment, the blanking assembly further comprises a conveying member, a blanking hole is formed in the blanking position of the blanking member, the conveying member is located below the blanking position of the blanking member, and the conveying direction of the conveying member faces to the position corresponding to the blanking hole.
In one embodiment, the blanking assembly further comprises a blanking member, the blanking member is arranged above the blanking member and is aligned with the blanking hole, and the blanking member can move towards or away from the blanking hole relative to the blanking member.
In one embodiment, the mask packaging device further comprises a frame, and the feeding component is mounted on the frame.
Mask production facility, mask production facility includes conveying mechanism and above-mentioned gauze mask packing apparatus, conveying mechanism set up in one side of gauze mask water conservancy diversion spare, conveying mechanism's direction of delivery orientation the material loading passageway, just conveying mechanism is used for passing through the gauze mask the material loading passageway carries extremely the water conservancy diversion passageway.
Above-mentioned gauze mask packing apparatus and gauze mask production facility pass through conveying mechanism with the gauze mask that processes and carry to the water conservancy diversion passageway in by the material loading passageway of gauze mask water conservancy diversion spare. Because the moving part is positioned below the pushing port of the mask guide part, the moving part moves along the guide channel to the stacking port at the upper end of the mask guide part through the pushing port, and the mask in the guide channel can be pushed to move to the stacking port. Because the size of the flow guide channel is smaller than that of the mask, the mask can be slightly deformed in the flow guide channel, and after the mask is pushed out of the stacking opening by the moving part, the mask is restored to be normal by the aid of the restoration capability of the mask, so that the mask can be supported at one end of the mask, where the stacking opening is formed by the flow guide part. At this time, the ear strap of the mask can drop in the diversion channel due to gravity. The driving source of the ear folding component is utilized to drive the ear folding component to extend into the flow guide channel through the ear folding hole, the ear folding component can push the ear belt to fold below the mask until the next mask is pushed to be overlapped with the mask, so that the ear belt of the upper mask is positioned between two adjacent masks, the ear folding component exits from the flow guide channel, and the ear belt of the next mask is continuously folded. Above-mentioned gauze mask packing apparatus can effectively realize the folding of gauze mask ear area for the packing process of gauze mask is convenient, has guaranteed packing efficiency.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 and 2, the mask production apparatus according to an embodiment of the present invention is used for producing, processing and packaging masks. Specifically, gauze mask production facility includes conveying mechanism and gauze mask packing apparatus 10, and conveying mechanism is used for carrying the gauze mask to gauze mask packing apparatus 10, and gauze mask packing apparatus 10 realizes the packing to the gauze mask.
Specifically, the mask packaging device 10 includes a feeding component 100 and an ear folding component 200, the feeding component 100 includes a moving member 110 and a mask guide member 120, a guide channel 121 is formed in the mask guide member 120, the guide channel 121 penetrates through the upper end of the mask guide member 120 to form a stacking opening 122, a pushing opening penetrates through the lower end of the mask guide member 120, a feeding channel 123 is formed in the side wall of the mask guide member 120, the feeding channel 123 is communicated with the guide channel 121, the feeding channel 123 is used for conveying a mask to the guide channel 121, the moving member 110 is located below the pushing opening, and the moving member 110 can move along the guide channel 121 towards the direction of the stacking opening 122 through the pushing opening, wherein the cross section size of the guide channel 121 along the direction from the stacking opening 122 to the pushing opening is smaller than that of the mask. The ear folding component 200 comprises a driving source 210 and an ear folding piece 220, wherein an ear folding hole is further formed in the side wall of the mask air guide 120, the ear folding hole is located at one side of the feeding channel 123, which faces the stacking opening 122, the ear folding piece 220 is located at one side of the ear folding hole, and the driving source 210 is used for driving the ear folding piece 220 to extend into or withdraw from the air guide channel 121 through the ear folding hole.
In this embodiment, the conveying mechanism is disposed on one side of the mask guide 120, the conveying direction of the conveying mechanism faces the feeding channel 123, and the conveying mechanism is used for conveying the mask to the guide channel 121 through the feeding channel 123.
The mask packaging device 10 and the mask production equipment are characterized in that the processed mask is conveyed into the guide passage 121 through the feeding passage 123 of the mask guide 120 by the conveying mechanism. Because the moving member 110 is located below the pushing opening of the mask guide member 120, the moving member 110 is further enabled to move along the guide channel 121 toward the stacking opening 122 at the upper end of the mask guide member 120 through the pushing opening, so as to push the mask in the guide channel 121 to move to the stacking opening 122. Since the size of the flow guide channel 121 is smaller than that of the mask, micro deformation exists in the flow guide channel 121, and after the mask is pushed out of the stacking opening 122 by the moving member 110, the mask is restored to be normal by the restoration capability of the mask, so that the mask can be supported on one end of the mask flow guide member 120 forming the stacking opening 122. At this time, the ear strap of the mask may drop into the flow guide passage 121 due to gravity. The driving source 210 of the ear folding assembly 200 is utilized to drive the ear folding piece 220 to extend into the flow guide channel 121 through the ear folding hole, the ear folding piece 220 can push the ear belt to fold below the mask until the next mask is pushed to be overlapped with the mask, so that the ear belt of the upper mask is positioned between two adjacent masks, the ear folding piece 220 is withdrawn from the flow guide channel 121, and the ear belt of the next mask is continuously folded. Above-mentioned gauze mask packing apparatus 10 can effectively realize the folding of gauze mask ear area for the packing process of gauze mask is convenient, has guaranteed packing efficiency.
In this embodiment, the mask packaging device 10 is applied to the packaging process of the mask without the welding lugs. The welding-ear-free mask is generally tied to the rear side of the head through the ear belt, so that the mask is worn, the length of the ear belt of the welding-ear-free mask is too long, the packaging is inconvenient easily caused, and the packaging efficiency is affected. Through gauze mask packing apparatus 10 for the ear area of no welding ear gauze mask is in the back of setting up in stacking port 122 department, and the ear area can drop in water conservancy diversion passageway 121 naturally, utilizes the cooperation of book ear subassembly 200 and moving member 110 to realize the folding of ear area. In the packing process, the mask packing device 10 effectively realizes the folding of the ear belt of the mask without the welding ears, and solves the problems that the ear belt of the mask without the welding ears is too long, and the automatic packing and the scattering of the ear belt after the packing are difficult to realize.
In one embodiment, the mask packaging device 10 further includes a frame 300, and the feeding assembly 100 is mounted on the frame 300. By providing the frame 300, a mounting platform is facilitated for the mounting of the loading assembly 100. Specifically, the stand 300 includes a support plate 310 and a support 320, the support plate 310 is disposed on the support 320, and the feeding assembly 100 is disposed on the support plate 310. The loading assembly 100 can be supported by the support 320, and the loading assembly 100 can be conveniently installed by the support plate 310. Further, an adjustable support cup 330 is provided at the bottom of the support 320. Leveling or height adjustment of the stand 320 is facilitated by the adjustable support foot cup 330. In other embodiments, the adjustable support foot cup 330 may also be a moving wheel.
In an embodiment, the feeding assembly 100 includes a moving source 130, and the moving source 130 is configured to drive the moving member 110 to move in the diversion channel 121. In this embodiment, the moving source 130 is an air cylinder, and the moving member 110 is driven to move in the diversion channel 121 by the air cylinder. In other embodiments, the moving source 130 may be a motor-driven transmission structure, so long as the moving member 110 can move. Alternatively, the moving member 110 may be mounted to the moving source 130 by means of a screw connection. In other embodiments, the moving member 110 may be disposed on the moving source 130 by welding or other means.
Specifically, the moving source 130 is mounted below the support plate 310 of the frame 300, the mask guide 120 is mounted above the support plate 310, and a moving hole for the moving source 130 to push the moving member 110 to move is formed in the support plate 310, so that the mask packing device 10 is more compact.
In one embodiment, the feeding channel 123 is mounted on a proximity sensor, and the proximity sensor is used for detecting the mask. The mobile source 130 is electrically connected to the proximity sensor. When the proximity sensor detects that the mask is conveyed into the diversion channel 121 through the feeding channel 123, the moving source 130 is controlled to drive the moving member 110 to move so as to push the mask to move to the stacking opening 122. Specifically, the proximity sensor is disposed at a communication position between the feeding channel 123 and the diversion channel 121.
In this embodiment, when the proximity sensor detects the mask 10 times, that is, the moving source 130 is controlled to drive the moving member 110 to move 10 times, the lamination of 10 masks can be achieved. In other embodiments, the number of stacked masks may be controlled according to the number of masks that are to be packaged.
In an embodiment, the feeding assembly 100 further includes a guide rod 140, a guide hole is formed in the frame 300, one end of the guide rod 140 is disposed on the moving member 110, the other end of the guide rod 140 is disposed in the guide hole in a penetrating manner, and the guide rod 140 can move in the guide hole along the direction of the pushing opening toward the stacking opening 122. Through setting up guide bar 140, can further improve the stability that removes 110 in the direction passageway, avoid removing 110 and promote the in-process of gauze mask and rock and influence the gauze mask and pile up the effect.
Alternatively, two guide rods 140 are arranged at intervals, and correspondingly, the number of the guide holes is two, and each guide rod 140 can be correspondingly arranged in one guide hole in a penetrating manner. In other embodiments, the number of guide rods 140 may also be one or other numbers.
In one embodiment, the size of the flow channel 121 is slightly smaller than the size of the mask. Specifically, the shape of the flow guide channel 121 matches the shape of the mask. In this embodiment, the length of the cross section of the flow guide channel 121 is 5mm-15mm smaller than the length of the mask. The width of the cross section of the diversion channel 121 is 2mm-10mm smaller than the width of the mask. Further, the length of the cross section of the flow guide passage 121 is 10mm smaller than the length of the mask. The width of the cross section of the diversion channel 121 is 5mm smaller than the width of the mask. In other embodiments, the size of the flow channel 121 may be smaller than the mask, so long as the mask can be slightly deformed in the flow channel 121, so as to stack the mask on one end of the stacking opening 122 of the mask guide 120.
In the present embodiment, the size of the moving member 110 is smaller than the size of the diversion channel 121, so as to facilitate the effective movement of the moving member 110 in the diversion channel 121. Specifically, the size of the moving member 110 is slightly smaller than the size of the diversion channel 121. For example, the moving member 110 has a rectangular structure, the length of the moving member 110 is 5mm to 15mm smaller than the length of the cross section of the flow guide passage 121, and the width of the moving member 110 is 2mm to 10mm smaller than the width of the cross section of the flow guide passage 121. Further, the length of the moving member 110 is 10mm smaller than the length of the cross section of the flow guide passage 121, and the width of the moving member 110 is 5mm smaller than the width of the cross section of the flow guide passage 121.
In an embodiment, the mask guide 120 includes a feeding portion 124 and a stacking portion 125, the stacking portion 125 is disposed on the feeding portion 124, the feeding channel 123 is formed on the feeding portion 124, a pushing opening is formed on a side of the feeding portion 124 facing away from the stacking portion 125, and a stacking opening 122 is formed on a side of the stacking portion 125 facing away from the feeding portion 124. The moving source 130 can push the moving member 110 to pass through the feeding channel 123 from one side of the pushing port and move to the stacking port 122 along the guiding channel 121. Specifically, the support plate 310 of the frame 300 is formed with a mounting groove, the feeding portion 124 is mounted in the mounting groove, and the moving source 130 is mounted on a side of the feeding portion 124 facing away from the stacking portion 125.
In this embodiment, the feeding portion 124 includes an upper supporting portion 1242 and a lower supporting portion 1244, the upper supporting portion 1242 is disposed on the lower supporting portion 1244, so that a feeding channel 123 is formed between the upper supporting portion 1242 and the lower supporting portion 1244, and the stacking portion 125 is disposed on the upper supporting portion 1242. Specifically, the stacking portion 125 may be welded to the upper support portion 1242. Or the stacking portion 125 may be fixed to the upper support portion 1242 by bolts or the like. Optionally, the upper support portion 1242 and the lower support portion 1244 are sheet metal parts, and the upper support portion 1242 and the lower support portion 1244 are mounted at the mounting groove and are mounted on two opposite sides of the support plate 310 respectively, so as to implement mounting of the feeding portion 124 on the support plate 310.
In one embodiment, the ear-folding hole is formed on the mask guide 120 near the stacking opening 122. Because the ear folding holes are disposed near the stacking opening 122, the ear folding members 220 can effectively fold the ear strap of the mask to one side of the mask. Specifically, the ear folding hole is formed at a position 20mm-30mm below the plane of the mask guide 120, where the stacking opening 122 is located. Specifically, the ear folding hole is formed at a position 26mm below the plane of the mask guide 120, where the stacking opening 122 is located. Avoiding the earhole to set up the position too down, influencing the folding to gauze mask ear area, avoiding the earhole to set up the position too up simultaneously, avoiding folding the in-process of ear area to pull the gauze mask, influencing the gauze mask and stacking up in stacking opening 122 department.
In one embodiment, the size of the tab 220 is smaller than the cross-sectional size of the flow channel 121. For example, the lug 220 has a rectangular structure facing the flow guiding channel 121, and the lug 220 has a dimension and a length 80mm smaller than the flow guiding channel 121 and a width 50mm smaller than the flow guiding channel 121. In other embodiments, the ear folding member 220 may have other shapes, and the ear folding member 220 may have other dimensions, so long as the ear strap of the mask can be folded to one side of the mask.
In an embodiment, the ear folding assembly 200 further includes a mounting member 230, the mounting member 230 is mounted on a side wall of the mask guide 120, and the driving source 210 is disposed on the mounting member 230. Specifically, the driving source 210 is welded to the mount 230. The installation of the driving source 210 is facilitated by the installation piece 230, and the lug folding piece 220 is convenient to be positioned in the lug folding hole, so that the lug folding piece 220 can be penetrated in the lug folding hole. In this embodiment, the driving source 210 is an air cylinder, and the air cylinder is used to push the lug 220 to move.
In this embodiment, the number of the ear folding assemblies 200 is two, the two ear folding assemblies 200 are disposed on two opposite sides of the mask guide 120, ear folding holes are formed in two opposite sidewalls of the mask guide 120, the ear folding members 220 of each ear folding assembly 200 can be correspondingly inserted into one ear folding hole, and the ear folding members 220 of the two ear folding assemblies 200 can move relatively or oppositely. Since the number of the ear bands of the mask is generally two, the two ear bands can be conveniently folded by the two ear folding assemblies 200.
In an embodiment, the ear folding assembly 200 further includes a sensor disposed at the ear folding hole, the sensor is used for sensing an ear strap of the mask, and the sensing element is electrically connected to the driving source 210. After the mask is pushed and arranged at the stacking opening 122, the ear belt can drop in the diversion channel 121, and the sensor can sense the ear belt and control the driving source 210 to drive the ear folding piece 220 to move, so that the ear belt is folded. Specifically, the sensor is a photoelectric sensor. In other embodiments, the sensor may be other components that enable detection of the ear strap.
In this embodiment, since there are two ear folding assemblies 200, when the sensor detects the ear belt, the two driving sources 210 drive the corresponding ear folding members 220 to move so as to push the naturally drooping ear belt toward the middle. At this time, the moving member 110 may push the next mask to move to the ear folding hole so that the ear band of the mask stacked at the stacking opening 122 pushed by the ear folding member 220 is folded to the center of the next mask. The moving member 110 continues to move upward, and the driving source 210 drives the ear folding member 220 to withdraw from the guide channel 121, so that the ear band of the mask at the stacking opening 122 is folded over the next mask. Therefore, the stacking of the two masks is realized, and the steps are repeated, so that the stacking of a plurality of masks can be realized.
In an embodiment, the mask packaging device 10 further includes a blanking assembly 400, the blanking assembly 400 includes a pushing member 410 and a blanking member 420, a stacking position is formed at one end of the blanking member 420, a blanking position is formed at the other end of the blanking member 420, one end of the stacking position formed by the blanking member 420 is disposed at one side of the mask guiding member 120 where the stacking opening 122 is formed, a communication hole 422 in communication with the stacking opening 122 is formed at the stacking position, and the pushing member 410 can reciprocate between the stacking position and the blanking position. In use, the mover 110 pushes the mask out of the stacking opening 122 and stacks it onto the stacking level through the communication hole 422. When the gauze mask stacks to a certain quantity, pushing components 410 promote the gauze mask to the unloading position by the heap material level, and the dress box unloading of gauze mask after the convenience range upon range of setting on the one hand makes the gauze mask move stack mouth 122 on the other hand, is convenient for the stack of next gauze mask.
In an embodiment, the blanking assembly 400 further includes a supporting member, and the supporting member is supported at a blanking position of the other ends of the frame 300 and the blanking member 420. Because one end of the blanking member 420 is arranged on the mask guide 120, the other end of the blanking member 420 is conveniently supported by the supporting member, and the stability of the arrangement of the blanking member 420 is improved.
In one embodiment, the communication hole 422 is the same size as the mask. Specifically, the size of the communication hole 422 may be matched to the size of one mask. Further, the hole depth of the communication hole 422 is 2mm. When the mask is pushed out of the stacking opening 122, the mask enters the communication hole 422 first, and the mask arranged in a next stacked manner pushes the mask of the previous layer out of the communication hole 422 and enters the communication hole 422, so that the stacking direction of the mask in the stacking process can be effectively limited. And when the pushing member 410 pushes the stacked masks to the discharging position, the mask at the lowest layer still can be left in the communication hole 422, and the ear belt of the mask is vertically arranged in the diversion channel 121. If the pushing member 410 pushes the mask located at the lowest layer to the discharging position, the ear strap of the mask will be pulled, which affects the stability of the subsequent discharging and boxing.
In one embodiment, the blanking member 420 is provided with a blanking channel 424, one end of the blanking channel 424 is formed as a stacking position, the other end is formed as a blanking position, and the communication hole 422 is formed on the bottom wall of the blanking channel 424. The pusher 410 is movable from a stacker displacement to a blanking level within the blanking channel 424.
In an embodiment, the blanking assembly 400 further includes a pushing source 430, the pushing source 430 is disposed on the blanking member 420, and the pushing source 430 is used for driving the pushing member 410 to move. In this embodiment, the push source 430 is a rodless cylinder. In other embodiments, the pushing source 430 may be other components that enable movement of the pusher 410.
In an embodiment, the blanking assembly 400 further includes a conveying member, a blanking hole 426 is formed at a blanking position of the blanking member 420, the conveying member is located below the blanking position of the blanking member 420, and the conveying direction of the conveying member faces to a position corresponding to the blanking hole 426. After the pushing member 410 pushes the stacked mask to the discharging position, the stacked mask can leak onto the carrier through the discharging hole 426. The conveying piece can be used for conveying the packaging box, so that the mask which is stacked can be conveniently placed into the packaging box through the blanking hole 426, and the boxing of the mask is realized.
In an embodiment, the blanking assembly 400 further includes a pressing member 440, the pressing member 440 is disposed above the blanking member 420 and aligned with the blanking hole 426, and the pressing member 440 can move toward or away from the blanking hole 426 relative to the blanking member 420. When the mask is used, after the stacked masks are placed in the packaging boxes on the conveying member, the pressing member 440 moves towards the direction of the blanking hole 426, the masks are further pressed into the packaging boxes, and the stability of placing the masks in the packaging boxes is improved.
Specifically, a detector is disposed at the discharging position of the pressing member 440 or the discharging member 420, the detector is used for detecting the mask, and the detector is electrically connected to the pressing member 440. When the detecting member detects that the mask is packed through the blanking hole 426, the pressing member 440 moves toward the blanking hole 426. Further, when the mask is boxed, the detector can detect the height of the mask after boxing. When the mask protrudes out of the packaging box, the pressing piece 440 can be controlled to move towards the direction of the blanking hole 426 and press the thickness of the mask, so that the stability of the packaging box is improved. Further, the detector is disposed at the blanking hole 426 and located near the bottom wall of the blanking member 420, so as to detect the height of the mask after boxing.
The mask packaging device 10 has a simple structure, can realize the folding, stacking and boxing of the mask, and realizes the automation of packaging of the mask. When being applied to no welding lug gauze mask, can solve the problem that no welding lug gauze mask ear area overlength is difficult to fold and the ear area is scattered after the dress box.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.