阅读说明：本技术 一种万毛牙刷包胶生产线 (Rubber coating production line for multi-bristle toothbrush ) 是由 赵叶青 于 2021-07-30 设计创作，主要内容包括：本发明涉及一种万毛牙刷包胶生产线,包括牙刷模具、输送装置和模具抓取装置；所述牙刷模具上并列设有多个牙刷型腔；所述输送装置包括依次连接的第一竖输送槽、横输送槽和第二竖输送槽,所述第一竖输送槽和第二竖输送槽均设置在横输送槽一侧,且均与横输送槽垂直设置；所述牙刷模具设置在第一竖输送槽,且沿第一竖输送槽、横输送槽和第二竖输送槽移动；所述模具抓取装置包括机械手和抓取驱动部,所述机械手在抓取驱动部作用下抓取牙刷模具。本生产线实现了万毛牙刷的刷毛和刷柄注塑包胶的自动化和一体化,大大地提高了万毛牙刷刷毛处注塑包胶的生产效率,且采用自动化输送装置取代人工输送牙刷模具,大大提高了工人的安全性。(The invention relates to a production line for rubber coating of a multi-bristle toothbrush, which comprises a toothbrush mould, a conveying device and a mould grabbing device, wherein the conveying device is arranged on the toothbrush mould; a plurality of toothbrush cavities are arranged on the toothbrush mould in parallel; the conveying device comprises a first vertical conveying groove, a transverse conveying groove and a second vertical conveying groove which are sequentially connected, wherein the first vertical conveying groove and the second vertical conveying groove are arranged on one side of the transverse conveying groove and are perpendicular to the transverse conveying groove; the toothbrush mould is arranged in the first vertical conveying groove and moves along the first vertical conveying groove, the transverse conveying groove and the second vertical conveying groove; the mold grabbing device comprises a mechanical arm and a grabbing driving part, and the mechanical arm grabs the toothbrush mold under the action of the grabbing driving part. The production line realizes the automation and integration of injection molding and encapsulation of bristles and brush holders of the multi-bristle toothbrush, greatly improves the production efficiency of injection molding and encapsulation of bristles of the multi-bristle toothbrush, adopts an automatic conveying device to replace a manual conveying toothbrush mold, and greatly improves the safety of workers.)

1. A multi-bristle toothbrush encapsulation production line is characterized by comprising a toothbrush mold, a conveying device and a mold grabbing device;

a plurality of toothbrush cavities are arranged on the toothbrush mould in parallel;

the conveying device comprises a first vertical conveying groove, a transverse conveying groove and a second vertical conveying groove which are sequentially connected, wherein the first vertical conveying groove and the second vertical conveying groove are arranged on one side of the transverse conveying groove and are perpendicular to the transverse conveying groove;

the toothbrush mould is arranged in the first vertical conveying groove and moves along the first vertical conveying groove, the transverse conveying groove and the second vertical conveying groove;

the mold grabbing device comprises a mechanical arm and a grabbing driving part, and the mechanical arm grabs the toothbrush mold under the action of the grabbing driving part.

2. The production line for rubber coating of the multi-bristle toothbrush according to claim 1, wherein two sides of the toothbrush mold are respectively and correspondingly provided with a grabbing groove, and a clamping part is formed at the top end in each grabbing groove; and the manipulator is provided with a clamping hook group matched with the toothbrush mould.

3. The ten-thousand-bristle toothbrush encapsulation production line according to claim 2, characterized in that two moving plates are oppositely arranged on the manipulator, a space is left between the two moving plates, and the two moving plates are driven by a cylinder to be in a state of mutually approaching or separating; the clamping hook group comprises a first clamping hook and a second clamping hook, and the first clamping hook and the second clamping hook are respectively and oppositely arranged on the two moving plates.

4. The production line for rubber coating of the multi-bristle toothbrushes according to claim 1, wherein the robot is provided with toothbrush clamping groups, each toothbrush clamping group comprises a first movable clamp body and a second movable clamp body which are oppositely arranged, a gap is reserved between the first movable clamp body and the second movable clamp body, when the toothbrush clamping group is required to clamp the toothbrush, the first movable clamp body and the second movable clamp body are driven by a cylinder to approach each other, and when the toothbrush clamping group is required to release the toothbrush, the first movable clamp body and the second movable clamp body are driven by the cylinder to move away from each other.

5. The multi-bristle toothbrush encapsulation production line of claim 4, further comprising toothbrush suction cups, wherein the toothbrush suction cups are arranged corresponding to the toothbrush holding groups.

6. The production line for rubber coating of the ten-thousand-bristle toothbrushes according to claim 1, wherein the number of the mechanical arms is two, an included angle is formed between the two mechanical arms, and the two mechanical arms are respectively controlled by different grabbing driving parts; the two manipulators are arranged on the rotating part.

7. The production line for rubber coating of the multi-bristle toothbrush according to claim 1, wherein a first vertical bar hole is formed in the first vertical conveying groove, a first stop block is arranged in the first vertical bar hole, the first stop block can extend out of or retract into the first vertical bar hole, and the first stop block can move in the first vertical bar hole; a second vertical bar hole is formed in the second vertical conveying groove, a second stop block is arranged in the second vertical bar hole, the second stop block can extend out of or retract into the second vertical bar hole, and the second stop block can move in the second vertical bar hole; a transverse bar hole is formed in the transverse conveying groove, a transverse stop block is arranged in the transverse bar hole, the transverse stop block can extend into or retract into the transverse conveying groove, and the transverse stop block can move in the transverse conveying groove; the first stop block, the second stop block and the transverse stop block are driven by different driving parts respectively.

8. The production line for rubber coating of the multi-bristle toothbrushes according to claim 7, wherein a plurality of first balls are further distributed on the first vertical conveying groove and on two sides of the first vertical bar hole, and the rotating directions of the first balls are the same as the moving direction of the first stopper; a plurality of second balls are further distributed on the second vertical conveying groove and on two sides of the second vertical strip hole, and the rotating direction of the second balls is the same as the moving direction of the second stop block; and a plurality of third balls are further distributed on the transverse conveying groove and on two sides of the transverse strip hole, and the rotating direction of the third balls is the same as the moving direction of the transverse stop blocks.

9. The production line for rubber coating of the multi-bristle toothbrush according to claim 7 or 8, wherein an ejection cylinder is respectively arranged at the joint of the first vertical conveying groove and the transverse conveying groove and the joint of the second vertical conveying groove and the transverse conveying groove.

10. The production line for encapsulating the ten-thousand-bristle toothbrushes according to any one of claims 1 to 9, wherein the manipulator is further provided with die suction cups on two sides respectively.

Technical Field

The invention relates to a toothbrush production device, in particular to a multi-bristle toothbrush encapsulation production line.

Background

Toothbrushes are oral cleaning tools and dentists recommend that people change them for up to three months for our oral hygiene. At present, the ten-thousand-bristle toothbrush is popular with consumers in the market, and because the arrangement of the bristles of the ten-thousand-bristle toothbrush is very close and is greatly different from the arrangement of common bristles, the production of the ten-thousand-bristle toothbrush cannot be completed by planting the bristles on the toothbrush handle. The existing toothbrush with all bristles is characterized in that a bristle part and a toothbrush handle are manufactured respectively, the bristle part is placed at a corresponding position on the toothbrush handle, and finally the bristle part is subjected to injection molding and encapsulation through an injection molding machine, so that the connection between the bristle part and the toothbrush handle is finally realized.

The process that brush hair portion placed in the brush holder is through artifical the completion, and also place in the injection molding machine through the manual work after brush hair portion and brush holder portion assembly are accomplished, need artifically take out toothbrush mold from the injection molding machine after the completion of moulding plastics, and then take out the toothbrush from toothbrush mold, foretell production process not only wastes time and energy, and production efficiency ground, the manual work is placed toothbrush mold and is all had very big security threat in the injection molding machine or from the injection molding machine in the toothbrush mold of taking.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention provides a production line for encapsulating the multi-bristle toothbrush.

The technical scheme adopted by the invention for solving the technical problems is as follows: a rubber coating production line for a multi-bristle toothbrush comprises a toothbrush mold, a conveying device and a mold grabbing device;

a plurality of toothbrush cavities are arranged on the toothbrush mould in parallel;

the conveying device comprises a first vertical conveying groove, a transverse conveying groove and a second vertical conveying groove which are sequentially connected, wherein the first vertical conveying groove and the second vertical conveying groove are arranged on one side of the transverse conveying groove and are perpendicular to the transverse conveying groove;

the toothbrush mould is arranged in the first vertical conveying groove and moves along the first vertical conveying groove, the transverse conveying groove and the second vertical conveying groove;

the mold grabbing device comprises a mechanical arm and a grabbing driving part, and the mechanical arm grabs the toothbrush mold under the action of the grabbing driving part.

In one embodiment of the invention, two sides of the toothbrush mold are respectively and correspondingly provided with a grabbing groove, and the top end in the grabbing grooves forms a clamping part; and the manipulator is provided with a clamping hook group matched with the toothbrush mould.

In one embodiment of the invention, two moving plates are oppositely arranged on the manipulator, a space is reserved between the two moving plates, and the two moving plates are driven by a cylinder to be in a state of mutually approaching or separating; the clamping hook group comprises a first clamping hook and a second clamping hook, and the first clamping hook and the second clamping hook are respectively and oppositely arranged on the two moving plates.

In one embodiment of the invention, the manipulator is provided with toothbrush clamping groups, each toothbrush clamping group comprises a first movable clamp body and a second movable clamp body which are arranged oppositely, a space is reserved between the first movable clamp body and the second movable clamp body, when the toothbrush clamping group is required to clamp a toothbrush, the first movable clamp body and the second movable clamp body are close to each other under the drive of the air cylinder, and when the toothbrush clamping group is required to release the toothbrush, the first movable clamp body and the second movable clamp body are far away from each other under the drive of the air cylinder.

In one embodiment of the invention, the toothbrush clamp further comprises a toothbrush suction cup, and the toothbrush suction cup is arranged corresponding to the toothbrush holding group.

In one embodiment of the invention, two manipulators are provided, an included angle is formed between the two manipulators, and the two manipulators are respectively controlled by different grabbing driving parts; the two manipulators are arranged on the rotating part.

In one embodiment of the invention, a first vertical bar hole is arranged in the first vertical conveying groove, a first stop block is arranged in the first vertical bar hole, the first stop block can extend out of or retract into the first vertical bar hole, and the first stop block can move in the first vertical bar hole; a second vertical bar hole is formed in the second vertical conveying groove, a second stop block is arranged in the second vertical bar hole, the second stop block can extend out of or retract into the second vertical bar hole, and the second stop block can move in the second vertical bar hole; a transverse bar hole is formed in the transverse conveying groove, a transverse stop block is arranged in the transverse bar hole, the transverse stop block can extend into or retract into the transverse conveying groove, and the transverse stop block can move in the transverse conveying groove; the first stop block, the second stop block and the transverse stop block are driven by different driving parts respectively.

In one embodiment of the invention, a plurality of first balls are distributed on the first vertical conveying groove and on two sides of the first vertical bar hole, and the rotating directions of the first balls are the same as the moving direction of the first stop block; a plurality of second balls are further distributed on the second vertical conveying groove and on two sides of the second vertical strip hole, and the rotating direction of the second balls is the same as the moving direction of the second stop block; and a plurality of third balls are further distributed on the transverse conveying groove and on two sides of the transverse strip hole, and the rotating direction of the third balls is the same as the moving direction of the transverse stop blocks.

In one embodiment of the invention, the joint of the first vertical conveying groove and the transverse conveying groove and the joint of the second vertical conveying groove and the transverse conveying groove are respectively provided with an ejection cylinder.

In one embodiment of the invention, the manipulator is further provided with mold suction cups on two sides respectively.

The invention has the beneficial effects that: the production line realizes the automation and integration of injection molding and encapsulation of bristles and brush holders of the multi-bristle toothbrush, greatly improves the production efficiency of injection molding and encapsulation of bristles of the multi-bristle toothbrush, adopts an automatic conveying device to replace a manual conveying toothbrush mold, and greatly improves the safety of workers.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic view of a toothbrush mold construction;

FIG. 4 is a schematic view of the conveyor apparatus;

FIG. 5 is a schematic view of a robot configuration;

FIG. 6 is a schematic view of a toothbrush holding group on a robot;

FIG. 7 is a schematic view of a clamping group;

FIG. 8 is a schematic view of a robot holding a toothbrush mold placed on an injection molding machine;

in the figure: 100. a toothbrush mold; 101. a toothbrush cavity; 102. a grabbing groove; 103. a clamping portion; 200. a conveying device; 201. a first conveying trough; 2011. a first vertical bar hole; 2012. a first stopper; 2013. a first ball bearing; 202. a transverse conveying trough; 2021. a transverse bar hole; 2022. a transverse stop block; 2023. a third ball bearing; 203. a second conveying trough; 2031. a second vertical bar hole; 2032. a second stopper; 2033. a second ball bearing; 300. a mold gripping device; 301. a manipulator; 302. moving the plate; 303. a first clip hook; 304. a second clip hook; 305. a first movable clamp body; 306. a second movable clamp body; 307. a first clamping plate; 308. a second clamping plate; 309. a toothbrush suction cup; 310. a mold chuck; 400. and ejecting out the cylinder.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

As shown in fig. 1 and 4, the production line for encapsulating the multi-bristle toothbrush comprises a toothbrush mold 100, a conveying device 200, a mold gripping device 300 and an injection molding machine 400; a plurality of toothbrush cavities 101 are arranged on the toothbrush mould 100 in parallel;

as shown in fig. 1 and 4, the conveying device 200 includes a first vertical conveying trough 201, a transverse conveying trough 202 and a second vertical conveying trough 203 which are connected in sequence, wherein the first vertical conveying trough 201 and the second vertical conveying trough 203 are both arranged on one side of the transverse conveying trough 202 and are both arranged perpendicular to the transverse conveying trough 202; the toothbrush mould 100 is arranged in the first vertical conveying groove 201 and moves along the first vertical conveying groove 201, the transverse conveying groove 202 and the second vertical conveying groove 203; the mold gripping device 300 comprises a manipulator 301 and a gripping driving part, and the manipulator 301 grips the toothbrush mold under the action of the gripping driving part.

When the production line is used, a worker places the toothbrush mold 100 in the first vertical conveying groove 201 at one end of the first vertical conveying groove 201 which is not connected with the transverse conveying groove 202, a toothbrush handle is correspondingly placed in the toothbrush cavity 101 of the toothbrush mold 100, bristles are placed at a corresponding position on a brush handle, the first vertical conveying groove is started, the toothbrush mold 100 is made to move to the end of the second conveying groove 203 along the first vertical conveying groove 201, the transverse conveying groove 202 and the second vertical conveying groove 203, then a mold grabbing device is started, the toothbrush mold 100 is grabbed through a manipulator, the toothbrush mold 100 is placed at a specified position of an injection molding machine, the bristles of the toothbrush are subjected to injection molding and encapsulation through the injection molding machine, and connection of the bristles and the brush handle of the multi-bristle toothbrush is completed.

As shown in fig. 3, in order to facilitate the gripping of the toothbrush mold by the manipulator, two sides of the toothbrush mold 100 are respectively and correspondingly provided with a gripping groove 102, a clamping portion 103 is formed at the top end in the gripping groove 102, and the clamping portion 103 is arranged to form an acting point, so that the clamping of the manipulator on the clamping portion 103 is facilitated, and the gripping of the manipulator on the toothbrush mold is facilitated; preferably, the manipulator 301 is provided with a clamping hook set matched with the toothbrush mold, that is, the clamping of the clamping part is realized by the clamping hook set on the manipulator 301.

As shown in fig. 5, the manipulator 301 is provided with two moving plates 302, a space is left between the two moving plates 302, and the two moving plates 302 are driven by the cylinder to be close to or separated from each other; the clamping hook group comprises a first clamping hook 303 and a second clamping hook 304, the first clamping hook 303 and the second clamping hook 304 are respectively and oppositely arranged on the two moving plates 302, namely when the toothbrush mold needs to be clamped, the manipulator is firstly driven to the position corresponding to the toothbrush mold, the first clamping hook and the second clamping hook of the manipulator are respectively clamped in the corresponding grabbing grooves 102 on the toothbrush mold, the two moving plates 302 are driven to mutually approach, the first clamping hook and the second clamping hook are driven to mutually approach, clamping of the clamping part 103 by the manipulator is realized, and after clamping is finished, the manipulator can be driven to move, so that the toothbrush mold is placed in the injection molding machine or the toothbrush mold is taken out of the injection molding machine; after the manipulator drives the toothbrush mold to move to the designated position, the cylinder drives the two moving plates 302 to perform the mutual separation action, so as to drive the first clamping hook 303 and the second clamping hook 304 to respectively separate from the corresponding grabbing grooves, so that the manipulator is separated from the toothbrush mold, and the manipulator can reset so as to perform the next action.

As shown in fig. 6 to 8, a toothbrush clamping group is arranged on the manipulator 301, each toothbrush clamping group comprises a first movable clamp body 305 and a second movable clamp body 306 which are oppositely arranged, a gap is left between the first movable clamp body 305 and the second movable clamp body 306, when the toothbrush clamping group is required to clamp a toothbrush, the first movable clamp body 305 and the second movable clamp body 306 are driven by a cylinder to approach each other, and when the toothbrush clamping group is required to release the toothbrush, the first movable clamp body 305 and the second movable clamp body 306 are driven by the cylinder to separate from each other; after the injection molding machine finishes the injection molding and encapsulation of toothbrush bristle parts, the toothbrush mold is taken out of the injection molding machine through the manipulator and is placed in the first vertical conveying groove, so that the subsequent assembly of the toothbrush handle and the toothbrush bristles is realized, but before the assembly of the toothbrush handle and the toothbrush bristles is carried out, the toothbrush after injection molding is taken out, the toothbrush can be automatically taken out through the toothbrush clamping group on the manipulator, namely after the toothbrush mold is placed in the first vertical conveying groove, the toothbrush handle of the toothbrush is respectively clamped by the first movable clamp body and the second movable clamp body, the first movable clamp body and the second movable clamp body are driven through the air cylinder, so that the first movable clamp body and the second movable clamp body are close to each other, the clamping of the toothbrush handle is realized, then the manipulator can be driven to move or rotate, and the toothbrush is moved to a designated place.

As shown in fig. 7, in the present application, a first movable clamp body 305 is disposed on a first clamping plate 307, and a second movable clamp body 306 is disposed on a second clamping plate 308; the first clamping plate 307 and the second clamping plate 308 are driven to be close to or separated from each other by the cylinder, so that the first clamping plate 307 and the second movable clamp 306 are driven to be close to each other to clamp the toothbrush, and the toothbrush is separated from each other to release the toothbrush; a plurality of first movable clamps and a plurality of second movable clamps can be correspondingly arranged on the first clamping plate 307 and the second clamping plate 308 respectively, so that a plurality of toothbrushes can be clamped simultaneously; in order to further improve the stability of clamping the toothbrush, the manipulator further comprises a toothbrush sucker, the toothbrush sucker is arranged corresponding to the toothbrush clamping group, namely, each toothbrush clamping group corresponds to one toothbrush sucker 309, the toothbrush clamping group clamps the upper half part of the toothbrush, and the toothbrush sucker 309 adsorbs the lower half part of the toothbrush to prevent the toothbrush from falling off in the moving process.

The number of the mechanical arms 301 is two, an included angle is formed between the two mechanical arms 301, and the two mechanical arms 301 are controlled by different grabbing driving parts respectively; the two mechanical arms 301 are arranged on the rotating portion, namely, the two mechanical arms can respectively complete different actions, for example, when one mechanical arm takes the toothbrush mold out of the injection molding machine, the other mechanical arm can clamp the toothbrush mold to be subjected to injection molding, and the production efficiency of toothbrush injection molding is improved.

As shown in fig. 4, a first vertical bar hole 2011 is formed in the first vertical conveying groove 201, a first stopper 2012 is formed in the first vertical bar hole 2011, the first stopper 2012 can extend out of or retract into the first vertical bar hole 2011, and the first stopper 2012 can move in the first vertical bar hole 2011; a second vertical bar hole 2031 is arranged in the second vertical conveying groove 203, a second stop 2032 is arranged in the second vertical bar hole 2031, the second stop 2032 can extend out of or retract into the second vertical bar hole 2031, and the second stop 2032 can move in the second vertical bar hole 2031; a cross bar hole 2021 is formed in the transverse conveying groove 202, a cross block 2022 is formed in the cross bar hole 2021, the cross block 2022 can extend into or retract into the transverse conveying groove 202, and the cross block 2022 can move in the transverse conveying groove 202; the first stopper 2012, the second stopper 2032 and the horizontal stopper 2022 are driven by different driving parts respectively; when the toothbrush mold needs to be driven to move in the conveying device 200, the first stopper 2012 is driven to extend out of the first vertical bar hole 2011, for example, the first stopper 2012 can be driven to extend out of the first vertical bar hole 2011 by the air cylinder, and then the first stopper 2012 is driven to move in the first vertical conveying groove 201 to further drive the toothbrush mold to move in the first vertical conveying groove 201, and similarly, the toothbrush mold is driven to move in the transverse conveying groove 202 by the transverse stopper 2022, and the toothbrush mold is driven to move in the second vertical conveying groove by the second stopper 2032, so that the toothbrush mold is conveyed.

In order to reduce the friction force of the toothbrush mold on the conveying device, a plurality of first balls 2013 are further distributed on the first vertical conveying groove 201 and on two sides of the first vertical bar hole 2011, and the rotating directions of the first balls 2013 are the same as the moving directions of the first stopper 2012; a plurality of second balls 2033 are further distributed on the second vertical conveying groove 203 and on both sides of the second vertical bar hole 2031, and the rotation direction of the second balls 2033 is the same as the moving direction of the second stopper 2032; a plurality of third balls 2023 are distributed on the transverse conveying groove 202 and on two sides of the transverse bar hole 2021, and the rotating direction of the third balls 2023 is the same as the moving direction of the transverse stop 2022.

The connection part of the first vertical conveying groove 201 and the transverse conveying groove 202, and the connection part of the second vertical conveying groove 203 and the transverse conveying groove 202 are respectively provided with an ejection cylinder 400; the toothbrush mold is jacked through the ejection cylinder, the toothbrush mold is prevented from moving backwards in the first vertical conveying groove, and similarly, when the toothbrush mold is moved to the joint of the second vertical conveying groove and the transverse conveying groove, the toothbrush mold is jacked through the ejection cylinder, the toothbrush mold is prevented from moving backwards in the transverse conveying groove, and the conveying stability of the toothbrush mold is guaranteed.

In order to further enhance the holding stability of the manipulator for the toothbrush mold, mold suction cups 310 are further provided on both sides of the manipulator 301.

The production line realizes the automation and integration of injection molding and encapsulation of bristles and brush holders of the multi-bristle toothbrush, greatly improves the production efficiency of injection molding and encapsulation of bristles of the multi-bristle toothbrush, adopts an automatic conveying device to replace a manual conveying toothbrush mold, and greatly improves the safety of workers.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.