阅读说明：本技术 一种过渡接纸组件、过渡接纸装置及纸箱生产线 (Transition paper receiving assembly, transition paper receiving device and carton production line ) 是由 黄方权 于 2021-06-28 设计创作，主要内容包括：本发明公开了一种过渡接纸组件、过渡接纸装置及纸箱生产线,其通过在清废机上设置两组过渡接纸组件,其中一组设在纸板下方,用于支撑和传送纸板,另一组设在纸板的上方,用于夹紧纸板,纸板从两组过渡接纸组件的皮带之间经过时,不会晃动和偏移,由于夹紧纸板的过渡接纸组件的皮带一端连接在传动轴上,另一端连接在滑动座上,滑动座通过滑动梁与摆臂连接,滑动座可以在滑动梁上移动,使得纸板生产线适合不同宽度的纸板的生产,并且保证纸板在传送时的稳定；摆臂与清废机的支架之间连接有伸缩组件,伸缩组件驱动摆臂摆动,使得两组过渡接纸组件设置皮带轮的一端分开,进而使得过渡接纸装置与印刷机之间存在一定空间,方便印刷模版的更换。(The invention discloses a transitional paper receiving assembly, a transitional paper receiving device and a carton production line, wherein two groups of transitional paper receiving assemblies are arranged on a waste cleaning machine, one group of the transitional paper receiving assemblies is arranged below a paper board and used for supporting and conveying the paper board, the other group of the transitional paper receiving assemblies is arranged above the paper board and used for clamping the paper board, and the paper board cannot shake or shift when passing between belts of the two groups of transitional paper receiving assemblies; be connected with flexible subassembly between the support of swing arm and clear useless machine, flexible subassembly drive swing arm swing for two sets of transition connects the one end that the paper subassembly set up the belt pulley to part, and then makes to have certain space between transition connects paper device and the printing machine, makes things convenient for the change of printing masterplate.)

1. The utility model provides a transition connects paper subassembly, a serial communication port, including sliding beam and transmission shaft, be fixed with the rack along its length direction on the sliding beam, go back sliding connection on the sliding beam has the sliding seat, rotate on the sliding seat be connected with rack toothing's first gear, the center fixedly connected with pivot of first gear, the one end of pivot is passed the sliding seat and is arranged the sliding seat outside in, rotate on the sliding seat and be connected with the belt pulley, be connected with the belt on the belt pulley, the other end of belt is connected on the transmission shaft, the one end of transmission shaft or belt pulley transmission are connected with runner assembly.

2. The transitional joint paper assembly of claim 1, wherein a limit hook is fixed in the middle of the sliding seat, and the belt passes through the limit hook.

3. The transitional joint assembly of claim 1, wherein the rack is fixed to an outer surface of the sliding beam, the sliding seat is provided with an avoidance slot through the rack, and the first gear is disposed in the avoidance slot.

4. The transitional joint assembly of claim 1, wherein the sliding beam and/or the sliding seat are provided with grooves for reducing friction.

5. The transitional paper splicing assembly of claim 1, wherein a sliding rail is fixed on the sliding beam along the length direction of the sliding beam, and a sliding groove is formed in the sliding seat corresponding to the sliding rail; the sliding seat is connected with a locking screw in a threaded manner, and one end of the locking screw abuts against the sliding rail or the sliding beam.

6. The transitional joint web assembly of claim 1, wherein a scale is further secured to the sliding beam along the length thereof.

7. The transitional joint paper assembly of any one of claims 1 to 6, wherein the number of sliding seats is several, several sliding seats are slidably connected to the same sliding beam, and a belt corresponding to a belt pulley on each sliding seat is connected to the same transmission shaft.

8. The transitional joint of claim 7, wherein the belt is circular in cross-section.

9. The transition paper splicing device is characterized by comprising the transition paper splicing assembly according to any one of claims 1 to 8, a support, a swing arm and a paper splicing device, wherein the two ends of a sliding beam and a transmission shaft of the transition paper splicing assembly are connected to the support; the swing arm is hinged with a telescopic component for driving the swing and the swing, and the other end of the telescopic component is hinged on the support.

10. The transitional paper splicing apparatus of claim 9, wherein the transitional paper splicing assemblies are arranged in two groups, the two groups of transitional paper splicing assemblies are symmetrically arranged with respect to the conveying direction of the paper boards, and two ends of a sliding beam of each group of transitional paper splicing assemblies are respectively provided with a swing arm correspondingly; and the rotating connection positions of the swing arms and the support are coaxially fixed with second gears, the corresponding second gears of the two groups of transition paper receiving assemblies are meshed and connected, and the telescopic assembly is connected to one of the swing arms.

11. A carton production line, comprising the transition splicer of claim 9 or 10, and further comprising a printing machine disposed on a side of the transition splicer adjacent to the pulleys.

Technical Field

The invention relates to the field of carton production, in particular to a transition paper receiving assembly, a transition paper receiving device and a carton production line.

Background

At present, in the carton production line, adopt belt structure to convey the cardboard that forms the carton usually, when the cardboard gets into clear useless device, need prevent that the cardboard from removing, consequently install the spring preforming that is pressing the cardboard top surface in clear useless device usually, the cardboard is carried and is removed by spring preforming and belt structure when the conveying. This structure is because the belt frame is fixed mounting, and the distance between each group's belt is unable adjustment, so unable adaptation production different width size's cardboard, adopts the hold-in range as conveyer belt in addition now, and this kind of plane belt is too wide, is unfavorable for the problem that the wastepaper dropped down.

It is seen that improvements and enhancements to the prior art are needed.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a transitional paper receiving assembly, a transitional paper receiving device and a carton production line, and aims to solve the problem that the positions of a belt structure and a spring pressing sheet in the existing waste clearing device cannot be adjusted.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a transition connects paper subassembly, includes sliding beam and transmission shaft, be fixed with the rack along its length direction on the sliding beam, the last sliding connection that goes back of sliding beam has the sliding seat, rotate on the sliding seat be connected with rack toothing's first gear, the center fixedly connected with pivot of first gear, the one end of pivot is passed the sliding seat and is arranged in the sliding seat outside, rotate on the sliding seat and be connected with the belt pulley, be connected with the belt on the belt pulley, the other end of belt is connected on the transmission shaft, the one end of transmission shaft or belt pulley transmission are connected with the runner assembly.

In the transition paper receiving assembly, a limiting hook is fixed in the middle of the sliding seat, and the belt penetrates through the limiting hook.

In the transition paper receiving assembly, the rack is fixed on the outer surface of the sliding beam, the sliding seat is provided with an avoiding groove which penetrates through the rack, and the first gear is arranged in the avoiding groove.

In the transition paper receiving assembly, a groove for reducing friction force is arranged on the sliding beam and/or the sliding seat.

In the transition paper receiving assembly, a sliding rail is fixed on the sliding beam along the length direction of the sliding beam, and a sliding groove is formed in the sliding seat corresponding to the sliding rail; the sliding seat is connected with a locking screw in a threaded manner, and one end of the locking screw abuts against the sliding rail or the sliding beam.

In the transition paper receiving assembly, a graduated scale is further fixed on the sliding beam along the length direction of the sliding beam.

In the transition paper receiving assembly, the sliding seats are a plurality of, the sliding seats are all connected to the same sliding beam in a sliding mode, and the belt corresponding to the belt pulley on each sliding seat is connected to the same transmission shaft.

In the transition paper receiving assembly, the cross section of the belt is circular.

A transition paper receiving device comprises the transition paper receiving assembly and a support, wherein two ends of a sliding beam and a transmission shaft of the transition paper receiving assembly are connected to the support; the swing arm is hinged with a telescopic component for driving the swing and the swing, and the other end of the telescopic component is hinged on the support.

In the transitional paper splicing device, two groups of transitional paper splicing assemblies are arranged, the two groups of transitional paper splicing assemblies are symmetrically arranged relative to the conveying direction of the paper board, and two ends of a sliding beam of each group of transitional paper splicing assemblies are correspondingly provided with a swing arm; and the rotating connection positions of the swing arms and the support are coaxially fixed with second gears, the corresponding second gears of the two groups of transition paper receiving assemblies are meshed and connected, and the telescopic assembly is connected to one of the swing arms.

The carton production line comprises the transition paper receiving device and a printing machine, wherein the printing machine is arranged on one side, close to a belt pulley, of the transition paper receiving device.

Has the advantages that:

1. in the waste cleaning machine, two groups of transition paper receiving assemblies are arranged, one group of transition paper receiving assemblies is arranged below the paper board and used for supporting and conveying the paper board, and the other group of transition paper receiving assemblies is arranged above the paper board and used for clamping the paper board, so that the paper board cannot shake and stably convey when passing between the belts of the two groups of transition paper receiving assemblies, and the paper board cannot shift when a fan blows away paper scraps or/and a brush brushes brush the paper scraps.

2. Because the belt one end of the transition that presss from both sides tight cardboard connects the paper subassembly is connected on the transmission shaft, the other end is connected on the sliding seat, the sliding seat passes through the sliding beam and is connected with the swing arm, the sliding seat can move on the sliding beam, consequently, in drive belt pivoted, remove the position of sliding seat, can realize the belt in the regulation of cardboard width direction's position, through adjusting the belt position, make the cardboard production line be fit for the production of the cardboard of different width, and guarantee the stability of cardboard when the conveying.

3. Be connected with flexible subassembly between the support of swing arm and clear useless machine, flexible subassembly drive swing arm swings for two sets of transition connects the one end that the paper subassembly set up the belt pulley to part, and then makes to have certain space between transition connects paper device and the printing machine, and this space can be used to the dismouting of the printing masterplate of printing machine, consequently, in whole production line, when the printing masterplate of changing the printing machine, need not obtain the space of dismouting printing masterplate through the equipment that dismantles and correspond, makes the printing masterplate change more convenient.

Drawings

Fig. 1 is a front view of a transitional joint assembly.

Fig. 2 is a top view of the transitional joint assembly shown in fig. 1.

Fig. 3 is a schematic view of the transitional joint assembly of fig. 1 with the drive shaft and belt removed.

Fig. 4 is a schematic structural diagram of the transitional paper splicing device in an operating state.

Fig. 5 is a schematic structural diagram of a transition joint assembly of the transition joint device in a separated state.

Fig. 6 is a schematic view of the structure of the carton production line.

Description of the main element symbols: 1-belt pulley, 2-limit hook, 3-sliding seat, 4-sliding beam, 5-groove, 6-sliding rail, 7-locking screw, 8-graduated scale, 9-first gear, 10-rotating shaft, 11-transmission shaft, 12-belt, 13-rack, 14-avoiding groove, 15-cover plate, 01-transition paper receiving component, 02-swinging arm, 03-second gear, 04-bracket, 05-telescopic component, 010-transition paper receiving device and 020-printing machine.

Detailed Description

The invention provides a transitional paper splicing assembly, a transitional paper splicing device and a carton production line, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.

Referring to fig. 1-3, a transitional web receiving assembly may be used for transporting sheets of paper and for clamping the sheets to a belt structure for transporting the sheets of paper. The transitional paper receiving assembly comprises a sliding beam 4 and a transmission shaft 11, a rack 13 is fixed on the sliding beam 4 along the length direction of the sliding beam, a sliding seat 3 is further connected onto the sliding beam 4 in a sliding manner, a first gear 9 meshed with the rack 13 is connected onto the sliding seat 3 in a rotating manner, a rotating shaft 10 is fixedly connected to the center of the first gear 9, one end of the rotating shaft 10 penetrates through the sliding seat 3 and is arranged on the outer side of the sliding seat 3, a belt pulley 1 is connected onto the sliding seat 3 in a rotating manner, a belt 12 is connected onto the belt pulley 1, the other end of the belt 12 is connected onto the transmission shaft 11, and one end of the transmission shaft 11 or the center of the belt pulley 1 is connected with a rotating assembly in a transmission manner; the rack 13 is fixed on the outer surface of the sliding beam 4, the sliding seat 3 is provided with an avoiding groove 14 penetrating through the rack 13, and the first gear 9 is arranged in the avoiding groove 14.

In the above, the cross section of sliding beam 4 is cylinder or ring form, rack 13 is fixed at the outer surface of sliding beam 4, sliding seat 3 overlaps behind sliding beam 4, sliding seat 3 is equipped with dodge groove 14 corresponding to rack 13 position, one side that rack 13 kept away from first gear 9 and the wall butt of dodging groove 14, the side that rack 13 kept away from sliding beam 4 is the plane simultaneously, and with dodge groove 14 inner wall butt, therefore, sliding seat 3 installs the back on sliding beam 4, because the side of rack 13 and the groove 14 inner wall butt of dodging of sliding seat 3, consequently sliding seat 3 can not rotate round the center of sliding beam 4, sliding seat 3 can only remove along rack 13 length direction promptly. In practical application, the cross section of the sliding beam 4 may also be polygonal, and the inner wall surface of the sliding seat 3 is matched with the surface of the sliding beam 4.

Specifically, because the avoiding groove 14 is further provided with the first gear 9, the first gear 9 is meshed with the rack 13, the rotating shaft 10 at the center of the first gear 9 passes through the sliding seat 3, and one end of the rotating shaft is arranged outside the sliding seat 3. When in use, the rotating shaft 10 is rotated, so that the sliding seat 3 can slide on the sliding beam 4, and the position of the sliding seat 3 is adjusted. The rotating shaft 10 can be rotated manually, for example, the cross section of one end of the sliding seat 3 is polygonal, so that the rotating shaft 10 can be manually pulled by a wrench, and the motor or the rotating cylinder can be fixed on the outer side of the sliding seat 3, and the output shaft of the motor or the rotating cylinder is fixedly connected with the rotating shaft 10, so that the rotating shaft 10 can be driven to rotate by the motor or the rotating cylinder.

In the above, after the belt 12 is connected end to end in an annular shape, one end is connected to the belt pulley 1, the other end is connected to the transmission shaft 11, the rotating assembly for driving the belt 12 to rotate is connected to the transmission shaft 11 or the belt pulley 1, and the rotating assembly can be a motor or a rotating cylinder. In normal use, the rotating assembly drives the belt 12 to rotate, so that the paper board is conveyed. When the position of the belt 12 needs to be adjusted, the rotating assembly drives the belt 12 to rotate, and simultaneously the rotating shaft 10 is rotated, so that the sliding seat 3 moves slowly on the sliding beam 4, and the position where the belt 12 is connected with the transmission shaft 11 also moves due to the fact that the belt 12 can rotate slowly, and the position adjustment of the belt 12 is achieved. When the paperboard production line produces paperboards with different sizes, the position of the belt 12 is adjusted, so that the paperboard production line is suitable for producing paperboards with different sizes, and the stability of the paperboards in conveying is ensured.

The escape groove 14 communicates with the outside of the sliding seat 3 so that the first gear 9 and the rotation shaft 10 can be installed therefrom, and the escape groove 14 also communicates with the inside of the sliding seat 3 so that the first gear 9 can be engaged with the rack 13. Wherein, the outer side of the sliding seat 3 is correspondingly provided with a cover plate 15 corresponding to the position of the avoiding groove 14, the middle part of the cover plate 15 is rotatably connected with the rotating shaft 10, therefore, the first gear 9 is fixed on the rotating shaft 10, the rotating shaft 10 is rotatably connected on the cover plate 15, and then the cover plate 15 is fixed on the sliding seat 3, so that the installation of the first gear 9 and the rotating shaft 10 is realized.

In a preferred embodiment, the middle part of the sliding seat 3 is fixed with a limit hook 2, the belt 12 passes through the limit hook 2, when the position of the belt 12 is adjusted, the belt 12 is rotated, so that the belt 12 easily falls out of the belt pulley 1, namely, the belt 12 is easily separated from the belt pulley 1, so that the limit hook 2 is arranged, the limit hook 2 is adopted to limit the swing amplitude of the belt 12, and the belt 12 is prevented from falling out of the belt pulley 1.

In a preferred embodiment, said sliding beam 4 and/or sliding block 3 is provided with grooves 5 for reducing friction, i.e. reducing the contact area between the sliding beam 4 and the sliding block 3, so that the friction between the sliding beam 4 and the sliding block 3 is reduced.

In a preferred embodiment, a slide rail 6 is fixed on the slide beam 4 along the length direction thereof, and a slide groove is formed in the slide seat 3 at a position corresponding to the slide rail 6. The sliding grooves are matched with the sliding rails 6, and limit the sliding seat 3 to move only along the length direction of the sliding beam 4, that is, only along the length direction of the rack 13. In this embodiment, the rack 13 may not abut against the inner wall surface of the avoidance groove 14.

Further, a locking screw 7 is connected to the sliding seat 3 in a threaded manner, and one end of the locking screw 7 abuts against the sliding rail 6 or the sliding beam 4, so that the sliding seat 3 cannot move further.

In a preferred embodiment, a graduated scale 8 is further fixed on the sliding beam 4 along the length direction thereof, and when the position of the sliding seat 3 is manually adjusted, the specific position of the sliding seat 3 can be directly known by observing the graduated position of the sliding seat 3 corresponding to the graduated scale 8. However, when the motor or the rotating cylinder is used for automatic control, the angle sensor is arranged on the motor or the rotating cylinder, and the moving distance of the sliding seat 3 is calculated by controlling the number of rotating turns of the motor or the rotating cylinder.

Specifically, the sliding seat 3 is a plurality of sliding seats, the sliding seats 3 are all connected to the same sliding beam 4 in a sliding mode, and a belt 12 corresponding to the belt pulley 1 on each sliding seat 3 is connected to the same transmission shaft 11. The structure and the connection mode of each sliding seat 3 are the same, so the working mode and the adjusting mode are the same. The sliding seats 3 are uniformly distributed in the width direction of the paperboard when in use, so that the paperboard is supported or pressed at multiple positions, and the stability of the paperboard is improved; moreover, when a plurality of small paper boards are die-cut in the production of a paper board, the belts on the sliding seats 3 can respectively support the plurality of small paper boards, for example, in the production, one paper board is divided into four small paper boards, so that the four small paper boards can be folded into four small paper boxes, the production efficiency of the small paper boxes is improved, and through the adjustment of the sliding seats 3, each small paper board die-cut is supported or pressed by the belts on the sliding seats 3, and the supporting or pressing force of the small paper boards by the belts is more balanced.

In a preferred embodiment, the belt 12 is circular in cross-section. Because the cross section of the belt 12 is circular, compared with the prior synchronous belt with the belt-shaped cross section, the contact surface of the belt 12 and the paper board is smaller, so that paper scraps extruded by the belt 12 on the paper board are less, and the waste is cleaner.

Referring to fig. 4 and 5, a transitional paper receiving device comprises the transitional paper receiving assembly 01, a support 04, a swing arm 02, a sliding beam 4 of the transitional paper receiving assembly 01, and two ends of a transmission shaft 11 of the sliding beam 4 are connected to the support 04, wherein one end of the swing arm 02 is rotatably connected to the support 04, and the other end of the swing arm 02 is fixedly connected to the sliding beam 4; the swing arm 02 is hinged with a telescopic component 05 for driving the swing arm to swing, and the other end of the telescopic component 05 is hinged on the support 04.

Specifically, the equal fixedly connected with swing arm 02 in 4 both ends of sliding beam, every sliding beam 4 corresponds to setting up two swing arms 02 promptly, and 4 one end of sliding beam are kept away from to swing arm 02 and the support 04 of transition meet paper device 010 rotates to be connected, consequently under the drive of flexible subassembly 05, the swing arm 02 swing, and 1 position of belt pulley on the sliding seat 3 changes, and then makes the position of belt 12 change. The paper board is supported or compressed tightly when normal use to transition paper receiving device 010 promptly, after flexible subassembly 05 drive swing arm 02 swings, transition paper receiving device 010 no longer supports or compresses tightly the cardboard, consequently, can be to some need not support or when the cardboard that compresses tightly when the conveying, can utilize flexible subassembly 05 drive swing arm 02 to swing, make the belt 12 that transition paper receiving device 010 is not supporting or compress tightly the cardboard, and then the wastepaper on the cardboard is not pushed down by belt 12, makes to clear up cleaner.

In a preferred embodiment, the transitional paper receiving assemblies 01 are two groups, the two groups of transitional paper receiving assemblies 01 are symmetrically arranged about the conveying direction of the paper board, and two ends of a sliding beam 4 of each group of transitional paper receiving assemblies 01 are correspondingly provided with a swing arm 02; the swing arm 02 and the support 04 are coaxially fixed with a second gear 03 at a rotating connection position, the corresponding second gears 03 of the two groups of transition paper receiving assemblies 01 are meshed and connected, and the telescopic assembly 05 is connected to one of the swing arms 02.

In practice, two sets of transition splicing assemblies 01 are used, one set is used for supporting the paper boards and simultaneously conveying the paper boards, and the other set is used for clamping the paper boards, namely the paper boards pass between the two sets of transition splicing assemblies 01 when passing through the waste cleaning machine. The second gears 03 on the two sets of transition paper receiving assemblies 01 are meshed and connected, so that after installation, even if the support of the telescopic assemblies 05 is not needed, the whole transition paper receiving device 010 is balanced in stress, for example, the weight of the transition paper receiving assembly 01 arranged below is downward, the weight of the transition paper receiving assembly 01 arranged above is also downward, and therefore, the force exerted by the second gear 03 of the transition paper receiving assembly 01 arranged above on the second gear 03 of the transition paper receiving assembly 01 arranged below is opposite to the gravity of the transition paper receiving assembly 01 arranged below; likewise, the force exerted by the second gear 03 of the lower transitional joint splice assembly 01 on the second gear 03 of the upper transitional joint splice assembly 01 is opposite to the gravity of the upper transitional joint splice assembly 01, so that the two transitional joint splice assemblies 01 are automatically balanced after installation. The telescopic assembly 05 is used for driving one group of transition paper receiving assemblies 01 to swing, and the other group of transition paper receiving assemblies 01 realize synchronous reverse motion through the meshing of the two second gears 03.

Referring to fig. 6, a carton production line includes the transition paper receiving device 010 and further includes a printer 020, and the printer 020 is disposed on one side of the transition paper receiving device 010 close to the belt pulley 1. Specifically, since patterns or characters are usually printed on the paper sheets forming the cartons when the cartons are produced, the printing machine 020 is used, that is, the paper scrap is removed from the surfaces of the paper sheets and then the paper sheets are printed. When printing different patterns or characters, the printing stencil of the printer 020 needs to be replaced, and further, a dismounting space is needed. In this carton production line, adopt can wobbling transition to connect paper subassembly 01 to be used for carrying the stencil, when the printing stencil of printing machine 020 needs to be changed, the flexible subassembly 05 drives two sets of transition to connect paper subassembly 01 to set up belt pulley 1's one end separately, and then make the transition to connect and have certain space between paper device 010 and the printing machine 020, this space can be used to the dismouting of the printing stencil of printing machine 020, therefore, in whole production line, when changing the printing stencil of printing machine 020, need not obtain the space of dismouting printing stencil through dismantling the equipment that corresponds, it is more convenient to make the printing stencil change.

In the waste cleaning machine, two groups of transition paper receiving assemblies 01 are arranged, wherein one group is arranged below the paper board and used for supporting and conveying the paper board, and the other group is arranged above the paper board and used for clamping the paper board, so that the paper board cannot shake and stably convey when passing between the belts 12 of the two groups of transition paper receiving assemblies 01, and the paper board cannot deviate when a fan sucks paper scraps.

Wherein, because the belt 12 one end of the transition of pressing from both sides tight cardboard meets paper subassembly 01 is connected on transmission shaft 11, the other end is connected on sliding seat 3, sliding seat 3 passes through sliding beam 4 and is connected with swing arm 02, sliding seat 3 can move on sliding beam 4, therefore, when drive belt 12 rotates, remove sliding seat 3's position, can realize the regulation of belt 12 in cardboard width direction's position, through adjusting belt 12 position, make the cardboard production line be fit for the production of the cardboard of different width, and guarantee the stability of cardboard when the conveying.

Swing arm 02 and clear useless support 04 of machine between be connected with flexible subassembly 05, flexible subassembly 05 drive swing arm 02 swings, make two sets of transition connect paper subassembly 01 to set up the one end of belt pulley 1 separately, and then make to have certain space between transition connect paper device 010 and the printing machine 020, this space can be used to the dismouting of the printing stencil-plate of printing machine 020, therefore, in whole production line, when changing the printing stencil-plate of printing machine 020, need not obtain the space of dismouting printing stencil-plate through the equipment that dismantles correspondence, make the printing stencil-plate change more convenient.

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.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.