阅读说明：本技术 视觉检测装置 (Visual inspection device ) 是由 何艳 李军委 刘其剑 王欣 张天翼 胡伟涛 于 2020-12-30 设计创作，主要内容包括：本发明提供了一种视觉检测装置。视觉检测装置包括视觉机构,视觉机构包括：第一连接件；第二连接件,与第一连接件连接且相对第一连接件沿第一预设方向可移动地设置；第三连接件,与第二连接件连接且相对第二连接件沿第二预设方向可移动地设置；其中,第二预设方向与第一预设方向呈预设夹角设置；视觉相机,设置在第三连接件上。本发明的视觉检测装置解决了现有技术中的视觉检测装置的视觉相机的位置无法调节的问题。(The invention provides a visual inspection device. The visual inspection device includes visual mechanism, and visual mechanism includes: a first connecting member; the second connecting piece is connected with the first connecting piece and is movably arranged along a first preset direction relative to the first connecting piece; the third connecting piece is connected with the second connecting piece and is movably arranged along a second preset direction relative to the second connecting piece; the second preset direction and the first preset direction form a preset included angle; and the visual camera is arranged on the third connecting piece. The visual detection device solves the problem that the position of a visual camera of the visual detection device in the prior art cannot be adjusted.)

1. A visual inspection device comprising a visual mechanism, the visual mechanism comprising:

a first connecting member (10);

the second connecting piece (20) is connected with the first connecting piece (10) and is movably arranged along a first preset direction relative to the first connecting piece (10);

the third connecting piece (30) is connected with the second connecting piece (20) and is movably arranged along a second preset direction relative to the second connecting piece (20); the second preset direction and the first preset direction form a preset included angle;

a vision camera (40) disposed on the third connector (30).

2. The visual inspection device of claim 1, wherein the visual mechanism further comprises:

the first transmission assembly (50) is arranged on the first connecting piece (10), and the first transmission assembly (50) is in transmission connection with the second connecting piece (20) so as to drive the second connecting piece (20) to move;

the second transmission assembly (60) is arranged on the second connecting piece (20), and the second transmission assembly (60) is in transmission connection with the third connecting piece (30) so as to drive the third connecting piece (30) to move.

3. The visual inspection device of claim 2, wherein the first transmission assembly (50) comprises a transmission screw (51) and a transmission nut, the transmission screw (51) is rotatably disposed on the first connecting member (10), the transmission nut is sleeved on the transmission screw (51), and the transmission nut is connected with the second connecting member (20);

the second transmission assembly (60) comprises a cylinder (61), the cylinder (61) is arranged on the second connecting piece (20), and the cylinder (61) is in driving connection with the third connecting piece (30).

4. The visual inspection device according to claim 1, wherein the third connector (30) comprises a first connector plate (31) and a second connector plate (32), the first connector plate (31) being connected to the second connector (20), one end of the second connector plate (32) being connected to the first connector plate (31), the other end of the second connector plate (32) being provided with the visual camera (40).

5. Visual inspection apparatus according to claim 1, characterised in that the visual mechanism comprises at least two visual cameras (40), the at least two visual cameras (40) being spaced apart along the second preset direction.

6. The visual inspection device of any of claims 1-5, wherein the visual mechanism further comprises:

and the light source (100) is arranged on one side of the vision camera (40), and the light emitting end of the light source (100) faces the workpiece.

7. The visual inspection device of claim 6, wherein the visual mechanism further comprises:

a first mounting rod (120) and a second mounting rod (130), both the first mounting rod (120) and the second mounting rod (130) being connected to the first connector (10), the first mounting rod (120) and the second mounting rod (130) being disposed on opposite sides of the third connector (30); the light source (100) extends along the second preset direction, one end of the light source (100) is connected with the first mounting rod (120), and the other end of the light source (100) is connected with the second mounting rod (130).

8. The visual inspection device of claim 6, wherein the number of light sources (100) is two, and two of the light sources (100) are disposed on opposite sides of the visual camera (40); wherein one of the light sources (100) is arranged between the vision camera (40) and the second connector (20).

9. The visual inspection device of claim 7, further comprising:

the light shielding box (140) is covered on the visual mechanism, and the light shielding box (140) is connected with the first mounting rod (120) and the second mounting rod (130);

the shading box (140) comprises a door body (141) and a shading main body part (142), and the door body (141) is arranged on the shading main body part (142) in an openable and closable manner;

the door body (141) is made of a transparent material, and the shading main body part (142) is made of a shading material.

10. The visual inspection device of any one of claims 1 to 5, further comprising:

a frame (70), the first connecting piece (10) being arranged on the frame (70);

the conveying line (80) is arranged on the rack (70), the conveying line (80) is conveyed along the second preset direction, and the conveying line (80) is arranged below the vision camera (40);

the tooling plate (90) comprises a plurality of accommodating parts (91), each accommodating part (91) is used for accommodating workpieces, and the tooling plate (90) is placed on the conveying line (80) so that the accommodating parts (91) are arranged at intervals along the second preset direction.

Technical Field

The invention relates to the technical field of visual detection, in particular to a visual detection device.

Background

The high and new technology develops to present, and the traditional mode of detecting whether the remote controller baffle and the rubber strip are installed in place by naked eyes is replaced by a more efficient and intelligent visual detection technology due to the defects of low efficiency, high misjudgment rate and the like. However, the conventional visual inspection technology has the disadvantages of large-scale structural equipment, low detection precision and low detection efficiency.

Disclosure of Invention

The invention mainly aims to provide a visual detection device to solve the problem that the position of a visual camera of the visual detection device in the prior art cannot be adjusted.

In order to achieve the above object, the present invention provides a visual inspection apparatus including a visual mechanism, the visual mechanism including: a first connecting member; the second connecting piece is connected with the first connecting piece and is movably arranged along a first preset direction relative to the first connecting piece; the third connecting piece is connected with the second connecting piece and is movably arranged along a second preset direction relative to the second connecting piece; the second preset direction and the first preset direction form a preset included angle; and the visual camera is arranged on the third connecting piece.

Further, the vision mechanism further comprises: the first transmission assembly is arranged on the first connecting piece and is in transmission connection with the second connecting piece so as to drive the second connecting piece to move; and the second transmission assembly is arranged on the second connecting piece and is in transmission connection with the third connecting piece so as to drive the third connecting piece to move.

Furthermore, the first transmission assembly comprises a transmission screw rod and a transmission nut, the transmission screw rod is rotatably arranged on the first connecting piece, the transmission nut is sleeved on the transmission screw rod, and the transmission nut is connected with the second connecting piece; the second transmission assembly comprises an air cylinder, the air cylinder is arranged on the second connecting piece, and the air cylinder is in driving connection with the third connecting piece.

Further, the third connecting piece includes first connecting plate and second connecting plate, and first connecting plate is connected with the second connecting piece, and the one end and the first connecting plate of second connecting plate are connected, and the other end of second connecting plate is provided with the vision camera.

Further, the vision mechanism comprises at least two vision cameras, and the at least two vision cameras are arranged at intervals along a second preset direction.

Further, the vision mechanism further comprises: the light source is arranged on one side of the vision camera, and the light emitting end of the light source faces the workpiece.

Further, the vision mechanism further comprises: the first mounting rod and the second mounting rod are both connected with the first connecting piece, and are arranged on two opposite sides of the third connecting piece; the light source extends along a second preset direction, one end of the light source is connected with the first mounting rod, and the other end of the light source is connected with the second mounting rod.

Furthermore, the number of the light sources is two, and the two light sources are arranged on two opposite sides of the vision camera; wherein a light source is disposed between the vision camera and the second connector.

Further, the visual inspection apparatus further includes: the shading box is covered on the vision mechanism and is connected with the first mounting rod and the second mounting rod; the light shading box comprises a door body and a light shading main body part, and the door body is arranged on the light shading main body part in an openable manner; the door body is made of transparent materials, and the shading main body part is made of shading materials.

Further, the visual inspection apparatus further includes: the first connecting piece is arranged on the rack; the conveying line is arranged on the rack and is conveyed along a second preset direction, and the conveying line is arranged below the vision camera; the tooling plate comprises a plurality of accommodating parts, each accommodating part is used for accommodating a workpiece, and the plurality of accommodating parts are arranged at intervals along the second preset direction when the tooling plate is placed on the conveying line.

The visual detection device comprises a visual mechanism, wherein the visual mechanism comprises a first connecting piece, a second connecting piece, a third connecting piece and a visual camera, the second connecting piece is connected with the first connecting piece and movably arranged along a first preset direction relative to the first connecting piece, the third connecting piece is connected with the second connecting piece and movably arranged along a second preset direction relative to the second connecting piece, the visual camera is arranged on the third connecting piece and can move in the first preset direction and the second preset direction, and a workpiece photo with multiple characteristics and high effective degree can be obtained in the photographing process, so that the visual camera is located at the optimal photographing position, and the detection accuracy of the visual detection device is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a vision mechanism of a vision inspection apparatus according to the present invention;

FIG. 2 shows a schematic structural diagram of an embodiment of a visual inspection device according to the present invention;

fig. 3 is a schematic view showing an angle structure of a vision mechanism, a light shielding box and a vision mechanism support of the vision inspection apparatus according to the present invention;

fig. 4 is a schematic view showing another angle structure of the vision mechanism, the light shielding box and the vision mechanism support of the vision inspection device according to the present invention;

FIG. 5 is a schematic view showing an angle of a display screen of the visual inspection apparatus according to the present invention;

fig. 6 shows a schematic view of another angle of the display screen of the visual inspection device according to the present invention.

Wherein the figures include the following reference numerals:

10. a first connecting member; 20. a second connecting member; 30. a third connecting member; 31. a first connecting plate; 32. a second connecting plate; 33. reinforcing ribs; 40. a vision camera; 50. a first transmission assembly; 51. a transmission screw rod; 60. a second transmission assembly; 61. a cylinder; 70. a frame; 80. a conveying line; 90. assembling a plate; 91. an accommodating portion; 100. a light source; 120. a first mounting bar; 130. a second mounting bar; 140. a shading box; 141. a door body; 142. a light-shielding main body portion; 150. a display screen; 160. a display screen mounting rack; 170. a vision mechanism support; 180. a hand wheel; 190. a guide rail; 200. a light source connector; 210. a visual camera connecting block; 220. an angle adjustment assembly; 230. the connecting plate rotates.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present invention provides a visual inspection device, please refer to fig. 1 to 6, including a visual mechanism, the visual mechanism includes: a first connecting member 10; the second connecting piece 20 is connected with the first connecting piece 10 and is movably arranged along a first preset direction relative to the first connecting piece 10; the third connecting piece 30 is connected with the second connecting piece 20 and is movably arranged along a second preset direction relative to the second connecting piece 20; the second preset direction and the first preset direction form a preset included angle; and a vision camera 40 disposed on the third link 30.

The visual detection device of the invention is used for taking pictures of the adhesive tape and the baffle on the remote controller to detect whether the adhesive tape and the baffle are installed in place, the visual detection device comprises a visual mechanism, the visual mechanism comprises a first connecting piece 10, a second connecting piece 20, a third connecting piece 30 and a visual camera 40, the second connecting piece 20 is connected with the first connecting piece 10 and is movably arranged along a first preset direction relative to the first connecting piece 10, the third connecting piece 30 is connected with the second connecting piece 20 and is movably arranged along a second preset direction relative to the second connecting piece 20, the visual camera 40 is arranged on the third connecting piece 30, the visual camera can move in the first preset direction and the second preset direction, can obtain the workpiece pictures with multiple characteristics and high effective degree in the photographing process, the visual camera is in the optimal photographing position, and the detection accuracy of the visual detection device is improved.

Specifically, the workpiece is a baffle and an adhesive tape of the remote controller, wherein the baffle is used for supporting a liquid crystal screen of the remote controller, and the adhesive tape is used for enabling the PCB to be in conductive connection with the liquid crystal screen.

Specifically, the first preset direction is a vertical direction, and the second preset direction is a horizontal direction; the preset included angle is 90 degrees, and other angles can be adopted.

In particular, the vision camera 40 is an industrial camera.

In this embodiment, the vision mechanism further comprises: the first transmission assembly 50 is arranged on the first connecting piece 10, and the first transmission assembly 50 is in transmission connection with the second connecting piece 20 so as to drive the second connecting piece 20 to move; and the second transmission assembly 60 is arranged on the second connecting piece 20, and the second transmission assembly 60 is in transmission connection with the third connecting piece 30 so as to drive the third connecting piece 30 to move. Such an arrangement enables movement of the second and third connectors 20, 30 and thus movement of the vision camera.

In this embodiment, the first transmission assembly 50 includes a transmission screw 51 and a transmission nut, the transmission screw 51 is rotatably disposed on the first connecting member 10, the transmission nut is sleeved on the transmission screw 51, and the transmission nut is connected with the second connecting member 20; the second transmission assembly 60 comprises a cylinder 61, the cylinder 61 is disposed on the second connecting member 20, and the cylinder 61 is in driving connection with the third connecting member 30. The arrangement ensures that the transmission is reliable and the occupied space is small.

In the present embodiment, a hand wheel 180 is disposed at one end of the transmission screw 51, so that the rotation of the transmission screw 51 is realized by rotating the hand wheel 180. Such an arrangement facilitates operation by an operator.

In this embodiment, the first connecting member 10 is provided with a guide rail 190, the second connecting member 20 is provided with a slider adapted to the guide rail 190, the slider is clamped on the guide rail 190, and the slider slides along the guide rail 190; the guide rail 190 extends in a first preset direction. The guide rail 190 is provided to guide and support the second connector 20.

In the present embodiment, the third connector 30 includes a first connector plate 31 and a second connector plate 32, the first connector plate 31 is connected to the second connector 20, one end of the second connector plate 32 is connected to the first connector plate 31, and the other end of the second connector plate 32 is provided with the vision camera 40. Wherein the second connecting plate 32 is a cantilever.

Specifically, the third connector 30 further includes a reinforcing rib 33, and the reinforcing rib 33 is disposed between the first connecting plate 31 and the second connecting plate 32 and connected to both the first connecting plate 31 and the second connecting plate 32. Such setting has strengthened the mechanical strength of second connecting plate 32, is convenient for install vision camera 40, avoids second connecting plate 32 to take place to buckle for vision camera 40's installation is more reliable.

Specifically, the second connecting plate 32 is provided with a damping hole, and the weight of the second connecting plate 32 is reduced due to the arrangement, so that the third connecting member 30 can be more reliably mounted, and the second connecting plate 32 can be prevented from being bent.

Specifically, the first connecting plate 31 and the second connecting plate 32 are vertically disposed. Such an arrangement enhances the mechanical strength of the third connecting member 30 and the layout is more reasonable.

In the present embodiment, the vision mechanism includes at least two vision cameras 40, and the at least two vision cameras 40 are spaced apart along the second preset direction. The arrangement can be used for photographing a plurality of workpieces simultaneously, and the detection efficiency is improved.

In this embodiment, the vision mechanism further comprises: and a light source 100 disposed at one side of the vision camera 40, a light emitting end of the light source 100 being disposed toward the workpiece. Such an arrangement allows for a higher accuracy of the image obtained when the vision camera 40 takes a picture.

In this embodiment, the vision mechanism further comprises: the first and second mounting bars 120 and 130, the first and second mounting bars 120 and 130 are connected to the first connecting member 10, and the first and second mounting bars 120 and 130 are disposed at opposite sides of the third connecting member 30; the light source 100 extends in a second predetermined direction, one end of the light source 100 is connected to the first mounting rod 120, and the other end of the light source 100 is connected to the second mounting rod 130. Wherein the light source 100 is a bar light source.

Specifically, the light source 100 is connected to both the first mounting rod 120 and the second mounting rod 130 through two light source connectors 200, wherein one end of the light source 100 is connected to the first mounting rod 120 through one light source connector 200; the other end of the light source 100 is connected to the second mounting rod 130 through another light source connector 200. Such an arrangement facilitates mounting and dismounting of the light source 100.

In the present embodiment, there are two light sources 100, and the two light sources 100 are disposed at opposite sides of the vision camera 40; wherein one light source 100 is arranged between the vision camera 40 and the second connector 20. Such an arrangement allows for better illumination of the light source 100.

In this embodiment, the visual inspection apparatus further includes: the light shielding box 140 is covered on the visual mechanism, and the light shielding box 140 is connected with the first mounting rod 120 and the second mounting rod 130; the light shielding box 140 includes a door 141 and a light shielding body 142, and the door 141 is openably and closably disposed on the light shielding body 142; the door 141 is made of a transparent material, and the light-shielding body 142 is made of a light-shielding material. The door 141 is made of a transparent material to facilitate an operator to observe the operation of the vision mechanism.

Specifically, the light-shielding main body 142 is a black electric wooden door; wherein, black electricity timber is made by the bakelite material, and its colour is black. The shading effect is better.

Specifically, the door body 141 is made of glass.

It should be noted that, in the conventional sense, the position parameter data of the visual detection is rough data obtained through a laboratory simulation experiment in the early stage, but the data is affected by other factors such as the working environment of the equipment, the incoming material batch and the like in the actual operation process, and the original data obtained by photographing is often not ideal enough, so that the detection accuracy of the visual detection device is greatly reduced. However, the visual inspection apparatus according to the present invention uses the light shielding box 140 and the light source 100 to supplement a photographing environment for a workpiece, thereby reducing the influence of the external light environment.

In this embodiment, the visual inspection apparatus further includes: a frame 70, on which the first connecting member 10 is disposed; the conveying line 80 is arranged on the rack 70, the conveying line 80 is conveyed along a second preset direction, and the conveying line 80 is arranged below the vision camera 40; the tooling plate 90 includes a plurality of accommodating portions 91, each accommodating portion 91 is used for accommodating a workpiece, and the plurality of accommodating portions 91 are arranged at intervals along a second preset direction when the tooling plate 90 is placed on the conveying line 80.

In this embodiment, visual detection device still blocks, blocks the cylinder and blocks the cylinder mounting panel including blockking, blocks the cylinder mounting panel and is connected with transfer chain 80, blocks the cylinder setting on blockking the cylinder mounting panel, blocks the cylinder and blocks the drive connection to the drive is blockked and is removed. Specifically, the stopper has a blocking position that blocks the tool plate 90 at the visual inspection position and an escape position that is located below the conveyor line to pass the tool plate 90, and is movably disposed between the blocking position and the escape position.

During specific implementation, when frock board 90 moves to the visual detection position through transfer chain 80, block the cylinder jacking to make and block the piece and move to blocking the position, make frock board 90 stop in the visual detection position, make things convenient for the visual camera to shoot the information that obtains the work piece. After the visual camera takes a picture, the picture characteristics are analyzed through software to obtain a result, and a signal is output to obtain a detection result.

In one embodiment, the tooling plate 90 includes four receiving portions 91, each receiving portion 91 has a workpiece disposed therein, and along the second predetermined direction, the four receiving portions 91 are a first receiving portion, a second receiving portion, a third receiving portion and a fourth receiving portion, respectively; the vision camera 40 is two, in order to reduce cost and improve detection efficiency, these two vision cameras 40 are at first taken a picture to the work piece in first accommodation portion and the third accommodation portion, then realize two vision cameras 40 through the effect of second transmission assembly and predetermine ascending position adjustment of orientation in the second, two vision cameras 40 move to the top of second accommodation portion and fourth accommodation portion to take a picture to the work piece in second accommodation portion and the fourth accommodation portion, thereby carry out the analysis to the result of taking a picture.

In this embodiment, the visual inspection apparatus further includes a display screen 150, the display screen 150 is disposed on the rack 70, and the display screen 150 is in communication with the visual camera 40, so that the image captured by the visual camera 40 is displayed on the display screen 150, and the operator can conveniently view the inspection structure.

Specifically, the visual inspection device further includes a display screen mounting bracket 160, the display screen mounting bracket 160 is disposed on the frame 70, and the display screen 150 is mounted on the display screen mounting bracket 160, such arrangement facilitating the mounting of the display screen 150.

In this embodiment, the vision mechanism further includes a rotating connection plate 230, the rotating connection plate 230 is disposed at one end of the second connection plate 32 far away from the first connection plate 31, an angle adjustment assembly 220 is disposed on the rotating connection plate 230, the angle adjustment assembly 220 is connected with the vision camera 40, and the angle adjustment assembly 220 is used for driving the vision camera 40 to rotate.

Specifically, the angle adjustment assembly 220 includes a mounting base and an adjustment member, the mounting base is mounted on the rotating connection plate 230, the adjustment member is connected with the mounting base and rotatably disposed relative to the mounting base, and the vision camera 40 is connected with the adjustment member; the adjusting piece is provided with an arc-shaped hole, the mounting seat is provided with a mounting hole, and the adjusting piece is detachably connected with the mounting seat through a fastener inserted in the arc-shaped hole and the mounting hole.

In particular, the fastener is a bolt nut or a screw.

Specifically, the vision mechanism further includes a vision camera connecting block 210, and the vision camera connecting block 210 is connected to both the vision camera 40 and the adjusting member, so that the vision camera 40 is connected to the angle adjusting assembly 220 through the vision camera connecting block 210. Such an arrangement facilitates the installation of the vision camera 40.

In this embodiment, the visual inspection apparatus further includes a visual mechanism support 170, and the visual mechanism support 170 is disposed on the frame 70 and located at one side of the conveying line 80; the first connecting element 10 is disposed on the visual mechanism support 170, and both an end of the first mounting rod 120 away from the light source 100 and an end of the second mounting rod 130 away from the light source 100 are connected to the visual mechanism support 170. The arrangement enables the overall structure of the visual detection device to be small and exquisite, so that the visual detection device can be popularized and used in a plurality of devices with small residual space and visual detection requirements. The fixing of the visual mechanism can be realized through the visual mechanism bracket 170, and the visual camera on the visual detection device is conveniently adjusted in a small range through the application of the first transmission component and the second transmission component.

The application solves the following technical problems: the traditional visual detection device has the characteristic of large-scale equipment, cannot adjust partial positions according to actual detection conditions, is large in size and is inconvenient to move; the traditional visual detection device has low detection result accuracy and low efficiency.

The beneficial effect of this application does: the problem that the position of a vision camera cannot be adjusted according to actual conditions due to the fixation of the traditional vision camera is solved; from the human technology, the equipment operation is simplified, and a new person can get on the hand more easily; the vision cameras are driven by the air cylinder to move along a second preset direction, so that the two vision cameras can shoot two workpieces at a time, and the working efficiency is improved; the accuracy of visual detection is improved, through adopting light-shading box and light source, for the detection of vision camera provides better shooting environment, under the prerequisite of frock board arrival visual detection position, and then accomplish the detection analysis to the baffle of the remote controller on the frock board and adhesive tape installation. Wherein, baffle and adhesive tape on the frock board have been installed in the remote controller main part, and what the frock board was carried is remote controller main part, baffle and adhesive tape.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the visual detection device of the invention is used for taking pictures of the adhesive tape and the baffle on the remote controller to detect whether the adhesive tape and the baffle are installed in place, the visual detection device comprises a visual mechanism, the visual mechanism comprises a first connecting piece 10, a second connecting piece 20, a third connecting piece 30 and a visual camera 40, the second connecting piece 20 is connected with the first connecting piece 10 and is movably arranged along a first preset direction relative to the first connecting piece 10, the third connecting piece 30 is connected with the second connecting piece 20 and is movably arranged along a second preset direction relative to the second connecting piece 20, the visual camera 40 is arranged on the third connecting piece 30, the visual camera can move in the first preset direction and the second preset direction, can obtain the workpiece pictures with multiple characteristics and high effective degree in the photographing process, the visual camera is in the optimal photographing position, and the detection accuracy of the visual detection device is improved.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.