Disclosure of Invention
Therefore, the mask packing device and the mask production equipment are needed to solve the problems and provide more convenient packing and guarantee packing efficiency.
A mask packing device comprises a feeding assembly and a lug folding assembly, wherein the feeding assembly comprises a moving piece and a mask guide piece, a guide channel is formed in the mask guide piece, penetrates through the upper end of the mask guide piece to form a stacking opening, penetrates through the lower end of the mask guide piece to form a material pushing opening, a feeding channel is formed in the side wall of the mask guide piece and communicated with the guide channel, the feeding channel is used for conveying a mask to the guide channel, the moving piece is positioned below the material pushing opening, the moving piece can move towards the stacking opening through the material pushing opening along the guide channel, and the size of the cross section of the guide channel along the direction from the stacking opening to the material pushing opening is smaller than that of the mask; the ear folding assembly comprises a driving source and an ear folding piece, an ear folding hole is further formed in the side wall of the mask flow guide piece, and the ear folding hole is located on one side, facing the stacking opening, of the feeding channel; the ear folding piece is located on one side of the ear folding hole, and the driving source is used for driving the ear folding piece to pass through the ear folding hole to stretch into or withdraw from the flow guide channel.
In one embodiment, the ear folding hole is opened at a position of the mask flow guide close to the stacking port.
In one embodiment, the number of the ear folding assemblies is two, two of the ear folding assemblies are arranged on two opposite sides of the mask flow guide piece, the two opposite side walls of the mask flow guide piece are respectively provided with an ear folding hole, each ear folding piece of the ear folding assembly can correspondingly penetrate through one ear folding hole, and the ear folding pieces of the two ear folding assemblies can move relatively or oppositely.
In one embodiment, the ear folding assembly further comprises a mounting member mounted on a side wall of the mask guide, and the driving source is disposed on the mounting member.
In one of them embodiment, gauze mask packing apparatus still include the unloading subassembly, the unloading subassembly including pushing away material spare and unloading spare, just the one end of unloading spare is formed with the material level of piling, and the other end is formed with the unloading level, just the unloading spare forms the one end of material level set up in gauze mask water conservancy diversion spare forms one side of piling mouthful, material level department seted up with pile up the intercommunicating pore that the mouth is linked together, it can to push away the material spare pile the material level with reciprocating motion between the material level of unloading.
In one embodiment, the communication hole is the same size as the mask.
In one embodiment, the blanking assembly further comprises a conveying piece, a blanking hole is formed in the blanking position of the blanking piece, the conveying piece is located below the blanking position of the blanking piece and is located in the blanking hole, and the conveying direction of the conveying piece 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 assembly is mounted on the frame.
The utility model provides a gauze mask production facility, gauze mask production facility includes conveying mechanism and as above gauze mask packing apparatus, conveying mechanism set up in one side of gauze mask water conservancy diversion piece, conveying mechanism's direction of delivery orientation material loading passageway, just conveying mechanism is used for passing through the gauze mask material loading passageway carries extremely water conservancy diversion passageway.
Above-mentioned gauze mask packing apparatus and gauze mask production facility passes through conveying mechanism and carries to the water conservancy diversion passageway in by the material loading passageway of gauze mask water conservancy diversion spare with the gauze mask that processes. Because the moving member is located the below that pushes away the material mouth of gauze mask water conservancy diversion piece, and then make the moving member remove to the direction of piling up the mouth of gauze mask water conservancy diversion piece upper end along the water conservancy diversion passageway through pushing away the material mouth, can promote the gauze mask in the water conservancy diversion passageway and remove to piling up the mouth. Because the size of water conservancy diversion passageway is less than the size of gauze mask, and then the gauze mask can have little the deformation in water conservancy diversion passageway, after the gauze mask was released the pile mouth by the moving member, the resilience that utilizes the gauze mask makes the gauze mask resume normal for the gauze mask can support and pile mouthful one at gauze mask water conservancy diversion spare formation and serve. At this time, the ear band of the mask may drop into the flow guide channel due to gravity. The ear piece is rolled over in the driving source drive that utilizes to roll over ear subassembly stretches into the water conservancy diversion passageway through rolling over the ear hole, rolls over ear piece and can promote the ear area and fold in the below of gauze mask, is pushed and is range upon range of setting with this gauze mask until next gauze mask to the ear area that makes the upper strata gauze mask is located between two adjacent gauze masks, rolls over ear piece and withdraws from the water conservancy diversion passageway, continues to fold the ear area of next gauze mask. 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 to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1 and 2, the mask production equipment in an embodiment of the present invention is used for generating, 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 comprises a feeding assembly 100 and a ear folding assembly 200, wherein the feeding assembly 100 comprises a moving member 110 and a mask guide member 120, a guide channel 121 is formed in the mask guide member 120, the diversion channel 121 penetrates the upper end of the mask diversion piece 120 to form a stacking opening 122, penetrates the lower end of the mask diversion piece 120 to form a material pushing opening, a feeding channel 123 is arranged on the side wall of the mask flow guide piece 120, the feeding channel 123 is communicated with the flow guide channel 121, the feeding channel 123 is used for conveying the mask to the flow guide channel 121, the moving member 110 is located below the material pushing port, the moving member 110 can move along the guiding channel 121 toward the stacking opening 122 through the material pushing opening, the size of the cross section of the flow guide channel 121 along the direction from the stacking opening 122 to the material pushing opening is smaller than that of the mask. The ear folding assembly 200 comprises a driving source 210 and an ear folding member 220, wherein an ear folding hole is further formed on the side wall of the mask flow guide member 120, and the ear folding hole is located on one side of the feeding channel 123 facing the stacking port 122; the ear bending piece 220 is located at one side of the ear bending hole, and the driving source 210 is used for driving the ear bending piece 220 to extend into or withdraw from the flow guide channel 121 through the ear bending hole.
In this embodiment, the conveying mechanism is disposed at one side of the mask diversion piece 120, the conveying direction of the conveying mechanism faces the feeding channel 123, and the conveying mechanism is configured to convey the mask to the diversion channel 121 through the feeding channel 123.
According to the mask packaging device 10 and the mask production equipment, the processed mask is conveyed into the flow guide channel 121 through the feeding channel 123 of the mask flow guide piece 120 by the conveying mechanism. Because the moving member 110 is located below the material pushing opening of the mask guiding member 120, the moving member 110 can move along the guiding channel 121 toward the stacking opening 122 at the upper end of the mask guiding member 120 through the material pushing opening, and can push the mask in the guiding channel 121 to move to the stacking opening 122. Because the size of diversion channel 121 is less than the size of gauze mask, and then the gauze mask can have little deformation in diversion channel 121, and after the gauze mask was released stacking opening 122 by moving member 110, utilize the resilience of gauze mask to make the gauze mask resume normal for the gauze mask can support and form one of stacking opening 122 at gauze mask diversion member 120. At this time, the ear band of the mask may drop into the flow guide channel 121 due to gravity. The drive source 210 that utilizes to roll over ear subassembly 200 drives and rolls over ear piece 220 and stretch into in the water conservancy diversion passageway 121 through rolling over the ear hole, rolls over ear piece 220 and can promote the ear area and fold the below at the gauze mask, is pushed and is set up with this gauze mask is range upon range of until next gauze mask to the ear area that makes the one deck gauze mask is located between two adjacent gauze masks, rolls over ear piece 220 and withdraws from water conservancy diversion passageway 121, continues to fold the ear area of next gauze mask. 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 the present embodiment, the mask packing apparatus 10 is applied to the packing process of a weldless mask. The wearing of gauze mask is generally realized at the rear side of head to no welding ear gauze mask through the ear area system, and then leads to the length overlength of the ear area that does not have welding ear gauze mask, causes the packing inconvenient easily, influences packing efficiency. Through gauze mask packing apparatus 10 for the ear area of no welding ear gauze mask is piling up mouthful 122 back in the setting, and the ear area can drop naturally in water conservancy diversion passageway 121, utilizes the folding of ear subassembly 200 and the folding of the cooperation realization ear area of moving member 110. In the packing process, effectively realize not having the folding of welding ear gauze mask ear area through gauze mask packing apparatus 10, solve the ear area overlength of not having the welding ear gauze mask and difficult realization automation packing and the scattered problem of packing back ear area.
In one embodiment, the mask packaging apparatus 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 provided for mounting the feeding assembly 100. Specifically, the frame 300 includes a supporting plate 310 and a bracket 320, the supporting plate 310 is disposed on the bracket 320, and the feeding assembly 100 is disposed on the supporting plate 310. The loading assembly 100 can be supported by the bracket 320, and the supporting plate 310 is used for facilitating the installation of the loading assembly 100. Further, the bottom of the support 320 is provided with an adjustable support foot cup 330. Leveling or height adjustment of the support 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 one embodiment, the feeding assembly 100 includes a moving source 130, and the moving source 130 is used for driving the moving member 110 to move in the guiding channel 121. In this embodiment, the moving source 130 is a cylinder, and the moving member 110 is driven by the cylinder to move in the guide passage 121. In other embodiments, the moving source 130 may also be a motor-driven transmission structure as long as the moving member 110 can move. Alternatively, the mover 110 may be mounted to the moving source 130 by a threaded connection. In other embodiments, the moving member 110 may be disposed on the moving source 130 by welding or other methods.
Specifically, the moving source 130 is installed below the supporting plate 310 of the frame 300, the mask guide 120 is installed above the supporting plate 310, and a moving hole for the moving source 130 to push the moving member 110 to move is formed on the supporting plate 310, so that the structure of the mask packing apparatus 10 is more compact.
In one embodiment, the feeding channel 123 is installed on a proximity sensor, and the proximity sensor is used for detecting the mask. The moving 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 port 122. Specifically, the proximity sensor is disposed at a communication position of the feeding passage 123 and the guide passage 121.
In this embodiment, when the proximity sensor detects the masks 10 times, i.e. the moving source 130 is controlled to drive the moving member 110 to move 10 times, the stacked arrangement of 10 masks can be realized. In other embodiments, the number of stacked masks can be controlled according to the number of masks to be boxed.
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 penetrates through the guide hole, and the guide rod 140 can move in the guide hole along the material pushing opening toward the stacking opening 122. Through setting up guide bar 140, can further improve the stability of moving member 110 removal in the guide way, avoid moving member 110 to promote the in-process of gauze mask and rock and influence the gauze mask and pile up the effect.
Optionally, there are two guide rods 140, two guide rods 140 are disposed at intervals, the number of the corresponding guide holes is two, and each guide rod 140 can be correspondingly disposed in one guide hole. In other embodiments, the number of guide rods 140 may also be one or another number.
In one embodiment, the size of the flow guide channel 121 is slightly smaller than the size of the mask. Specifically, the shape of the flow guide passage 121 matches the shape of the mask. In this embodiment, the length of the cross section of the flow guide channel 121 is 5mm to 15mm smaller than the length of the mask. The width of the cross section of the flow guide channel 121 is 2mm-10mm smaller than that of the mask. Further, the length of the cross section of the flow guide channel 121 is 10mm less than that of the mask. The width of the cross section of the flow guide channel 121 is 5mm smaller than that of the mask. In other embodiments, the size of the diversion channel 121 may be smaller than that of the mask, so long as the micro-deformation of the mask in the diversion channel 121 can be realized, so as to facilitate the stacking of the mask on one end of the stacking hole 122 of the mask diversion piece 120.
In the embodiment, the size of the moving member 110 is smaller than that of the flow guide channel 121, so that the moving member 110 can effectively move in the flow guide channel 121. Specifically, the moving member 110 is slightly smaller than the flow guide passage 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 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 guide passage 121. Further, the length of the moving member 110 is 10mm smaller than the length of the cross section of the guide passage 121, and the width of the moving member 110 is 5mm smaller than the width of the cross section of the guide passage 121.
In one embodiment, the mask guiding member 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 material pushing opening is formed on a side of the feeding portion 124 opposite to the stacking portion 125, and a stacking opening 122 is formed on a side of the stacking portion 125 opposite to the feeding portion 124. The moving source 130 can push the moving member 110 from one side of the material pushing opening to pass through the material loading channel 123 and move along the guiding channel 121 to the stacking opening 122. Specifically, a mounting groove is formed on the support plate 310 of the frame 300, the loading part 124 is mounted in the mounting groove, and the moving source 130 is mounted on a side of the loading part 124 opposite to the stacking part 125.
In this embodiment, the loading part 124 includes an upper supporting part 1242 and a lower supporting part 1244, the upper supporting part 1242 is disposed on the lower supporting part 1244, so that the loading passage 123 is formed between the upper supporting part 1242 and the lower supporting part 1244, and the stacking part 125 is disposed on the upper supporting part 1242. Specifically, the stacking part 125 may be welded to the upper support part 1242. Alternatively, the stacking portion 125 may be fixed to the upper supporting portion 1242 by a bolt or other means. Optionally, the upper supporting part 1242 and the lower supporting part 1244 are both sheet metal parts, and the upper supporting part 1242 and the lower supporting part 1244 are installed at the installation groove and respectively installed at two opposite sides of the support plate 310, so as to implement installation of the feeding part 124 on the support plate 310.
In one embodiment, the ear folding holes are formed on the mask baffle 120 near the stacking port 122. Because the ear folding holes are arranged close to the stacking port 122, the ear folding pieces 220 can effectively fold the ear belts of the mask to one side of the mask. Specifically, the ear folding holes are arranged at the positions 20mm-30mm below the plane where the mask flow guide piece 120 is located and the stacking port 122 is located. Specifically, the ear folding holes are opened at a position 26mm below the plane where the mask flow guide 120 is located and the stacking port 122 is located. Avoid rolling over the ear hole and seting up the position and too lean on down, the influence is to the folding of gauze mask ear area, and the position of avoiding rolling over the ear hole simultaneously is too leaned on, avoids folding the in-process in ear area to drag the gauze mask, influences the piling up of gauze mask piling up mouthful 122 department.
In one embodiment, the size of the tab member 220 is smaller than the size of the cross-section of the flow guide channel 121. For example, the direction of the folded ear piece 220 towards the flow guide channel 121 is a rectangular structure, and the dimension length of the folded ear piece 220 is 80mm smaller than that of the flow guide channel 121 and the width is 50mm smaller. In other embodiments, the ear-folding piece 220 may have other shapes, and the size of the ear-folding piece 220 may also have other sizes, as long as the ear band of the mask can be folded to one side of the mask.
In one embodiment, the ear folding assembly 200 further comprises a mounting member 230, wherein the mounting member 230 is mounted on the sidewall of the mask baffle 120, and the driving source 210 is disposed on the mounting member 230. Specifically, the driving source 210 is welded to the mounting member 230. The installation of driving source 210 is convenient for realize through setting up installed part 230, is convenient for simultaneously roll over ear piece 220 to lieing in a book ear hole, and then make roll over ear piece 220 and can wear to locate in a book ear hole. In this embodiment, the driving source 210 is an air cylinder, and the lug folding member 220 is pushed to move by the air cylinder.
In this embodiment, the number of folding ear subassembly 200 is two, two fold ear subassembly 200 set up in gauze mask water conservancy diversion piece 120 opposite sides back to back, all seted up on the both sides wall that gauze mask water conservancy diversion piece 120 is opposite sides back to back and folded the ear hole, each fold ear subassembly 200 roll over ear piece 220 can be corresponding to wear to locate one roll over in the ear hole, and two fold ear subassembly 200 roll over ear piece 220 and can be relative or move back to back. Because the ear straps of the mask are generally two, the two ear straps can be conveniently folded through the two ear folding assemblies 200.
In one embodiment, the ear folding assembly 200 further includes a sensor disposed at the ear folding hole for sensing an ear band of the mask, and the sensing element is electrically connected to the driving source 210. When the mask is pushed and set up in stacking mouthful 122 back, the ear area can drop in water conservancy diversion passageway 121, and the ear area can be sensed to the inductor this moment to control driving source 210 drive ear piece 220 and remove, realize the folding to the ear area. In particular, the sensor is a photosensor. In other embodiments, the sensor may be other components capable of detecting the ear band.
In this embodiment, since the ear folding assembly 200 is two, when the sensor detects the ear belt, the two driving sources 210 move corresponding to the ear folding member 220 by driving, so as to push the naturally drooping ear belt to move 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 strap of the mask stacked at the stacking hole 122 pushed by the ear folding member 220 is folded to the center of the next mask. The moving member 110 continues to move upwards, and the driving source 210 drives the ear folding member 220 to exit the diversion channel 121, so that the ear bands of the mask at the stacking port 122 are folded on the next mask. The stacking of the two masks is realized, and the stacking of the plurality of masks can be realized by repeating the steps.
In an embodiment, gauze mask packing apparatus 10 still includes unloading subassembly 400, unloading subassembly 400 is including pushing away material 410 and unloading 420, just the one end of unloading 420 is formed with the pile material level, and the other end is formed with the unloading position, just unloading 420 forms the one end of pile material level set up in gauze mask water conservancy diversion piece 120 forms one side of piling mouth 122, pile material level department set up with the intercommunicating pore 422 that piles up mouthful 122 and be linked together, it can to push away material 410 pile material level with reciprocating motion between the unloading level. In use, the moving member 110 pushes the mask out of the stacking port 122 and stacks the mask on the stacking position through the communication hole 422. After the gauze mask piles up a certain amount, pushing equipment 410 promotes gauze mask to the unloading position by piling up the material level, makes things convenient for the dress box unloading of the gauze mask after range upon range of setting on the one hand, and on the other hand makes the gauze mask move and opens and pile mouthful 122, the piling up of gauze mask of next time of being convenient for.
In one embodiment, the blanking assembly 400 further includes a support member supported at the blanking position at the other end of the frame 300 and the blanking member 420. Because the one end of unloading piece 420 sets up on gauze mask water conservancy diversion piece 120, and then be convenient for support the other end of unloading piece 420 through support piece, improve the stability that unloading piece 420 set up.
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 was 2 mm. When the masks are pushed out of the stacking holes 122, the masks firstly enter the communication holes 422, and the masks stacked next layer push out the masks in the previous layer from the communication holes 422 and then enter the communication holes 422, so that the stacking direction of the masks in the stacking process can be effectively limited. When the pushing member 410 pushes the stacked masks to the material discharging position, the mask located at the lowermost layer still can leave the communicating hole 422, and the ear band of the mask is suspended in the flow guiding channel 121. If the material pushing piece 410 pushes the mask positioned at the lowermost layer to the blanking position, the ear band of the mask is necessarily pulled, and the stability of the subsequent blanking boxing is affected.
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 provided on the bottom wall of the blanking channel 424. The pusher 410 is movable within the blanking channel 424 from a stacking position to a blanking position.
In one 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 motive 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 is located at the blanking hole 426, and a conveying direction of the conveying member faces a position corresponding to the blanking hole 426. When the material pushing member 410 pushes the stacked masks to the blanking position, the stacked masks can leak into the conveying member through the blanking hole 426. The conveying piece can be used for conveying the packaging box, so that the stacked masks can be conveniently loaded into the packaging box through the discharging hole 426, and the masks are packed into the packaging box.
In one 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 towards or away from the blanking hole 426 relative to the blanking member 420. When the mask conveying device is used, after the stacked masks are placed in a packaging box on the conveying piece, the material pressing piece 440 moves towards the direction of the blanking hole 426, the masks are further pressed into the packaging box, and the stability of placing the masks into the packaging box is improved.
Specifically, a detector is arranged at a 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 loaded through the discharging hole 426, the pressing member 440 moves toward the discharging hole 426. Further, after the mask is packed in the box, the detector can detect the height of the mask after being packed in the box. When the mask protrudes out of the packing box, the pressing piece 440 can be controlled to move towards the blanking hole 426 and press the thickness of the mask, so that the stability of the packing box is improved. Further, the detector is disposed at the position of the discharging hole 426 and located near the bottom wall of the discharging member 420, so as to detect the height of the mask after being packed into the box.
Above-mentioned gauze mask packing apparatus 10's simple structure can realize the ear of book of gauze mask, pile up, dress box, realizes the automation of the packing of gauze mask. When the ear belt folding device is applied to an ear-weldless mask, the problems that the ear belt of the ear-weldless mask is too long and is difficult to fold and the ear belt is scattered after being packed in a box can be solved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited 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; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. 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.
It will be understood that when an element is referred to as being "secured to" 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 as used herein are for illustrative purposes only and do not denote a unique embodiment.