Automatic device that erects of fiber container

文档序号:672488 发布日期:2021-04-30 浏览:23次 中文

阅读说明:本技术 一种纸筒自动竖起装置 (Automatic device that erects of fiber container ) 是由 王晓军 徐艳秋 许明 崔希增 孙煊鹏 于 2020-12-16 设计创作,主要内容包括:本发明涉及纸筒加工装置技术领域,提供了一种纸筒自动竖起装置,包括输送转移机构和纸筒竖起机构;输送转移机构包括输送架,输送架的底部设有控制箱,输送架上排列设置有输送辊,输送辊上套设有输送带,输送带与纸筒生产线连接,输送架的输入端安装有光电传感器,输送架靠近纸筒竖起机构的一侧设有升降拦截机构;纸筒竖起机构包括底座,底座上设有竖起架,竖起架的一端与底座之间铰接连接,另一端抵靠于底座上,竖起架与底座之间还连接有用于推动竖起架绕底座竖起的第一液压杆。本发明解决了目前的纸筒生产过程中,对于大型纸筒缺少能够与纸筒生产线相适配的装置,目前主要依靠人工手动搬运,存在劳动强度大,工作效率低的问题。(The invention relates to the technical field of paper tube processing devices, and provides an automatic paper tube erecting device which comprises a conveying and transferring mechanism and a paper tube erecting mechanism; the conveying and transferring mechanism comprises a conveying frame, a control box is arranged at the bottom of the conveying frame, conveying rollers are arranged on the conveying frame in a row, a conveying belt is sleeved on the conveying rollers and connected with a paper tube production line, a photoelectric sensor is installed at the input end of the conveying frame, and a lifting intercepting mechanism is arranged on one side of the conveying frame, close to the paper tube erecting mechanism; the paper tube erecting mechanism comprises a base, wherein an erecting frame is arranged on the base, one end of the erecting frame is hinged with the base, the other end of the erecting frame is abutted against the base, and a first hydraulic rod used for pushing the erecting frame to erect around the base is connected between the erecting frame and the base. The invention solves the problems that in the existing paper tube production process, a large paper tube is lack of a device which can be matched with a paper tube production line, and the existing paper tube is mainly carried manually, so that the labor intensity is high and the working efficiency is low.)

1. An automatic device that erects of fiber container which characterized in that: the paper tube erecting mechanism is positioned on one side of the conveying and transferring mechanism along the conveying direction;

the conveying and transferring mechanism comprises a conveying frame which can be lifted and is obliquely arranged, a control box is arranged at the bottom of the conveying frame, a plurality of conveying rollers are arranged on the conveying frame in a row, a conveying belt is sleeved on the plurality of conveying rollers and is connected with a paper tube production line, a photoelectric sensor is installed at the input end of the conveying frame, and a lifting intercepting mechanism is arranged on one side of the conveying frame, which is close to the paper tube erecting mechanism;

the paper tube erecting mechanism comprises a base, wherein an erecting frame capable of adjusting the bearing angle is arranged on the base, one end of the erecting frame is hinged with the base, the other end of the erecting frame abuts against the base, and a first hydraulic rod used for pushing the erecting frame to erect around the base is further connected between the erecting frame and the base.

2. An automatic erecting device for a paper tube as recited in claim 1, wherein: the conveying frame is obliquely arranged on a cross beam, two ends of the cross beam are respectively connected with piston rods of hydraulic cylinders, cylinder bodies of the hydraulic cylinders are arranged on a base, and the control box is also arranged on the base;

the top of the hydraulic cylinder body is provided with connecting plates, and a first connecting rod is connected between the two connecting plates.

3. An automatic erecting device for a paper tube as recited in claim 1, wherein: the lifting intercepting mechanism comprises an intercepting plate, the intercepting plate is rotatably installed on one side of the conveying frame along the conveying direction, a telescopic end of a second hydraulic rod is hinged to the intercepting plate, a cylinder body of the second hydraulic rod is hinged to be installed on a supporting plate, the supporting plate is installed on the conveying frame, and a reinforcing plate is further arranged between the supporting plate and the bottom of the conveying frame.

4. An automatic erecting device for a paper tube as recited in claim 1, wherein: the base is provided with two oppositely arranged supporting columns, a pair of oppositely arranged supporting lugs is arranged at the top of one supporting column, a connecting frame is rotatably connected between the two supporting lugs through a connecting shaft, and the connecting frame is arranged at the bottom of one end of the erection frame.

5. An automatic erecting device for paper tube as claimed in claim 4 wherein: the erection frame comprises a bearing plate, the connecting frame is arranged at the bottom of one end of the bearing plate, and the other end of the bearing plate is abutted against the supporting column;

the two sides of the bearing plate along the conveying direction are respectively hinged with a pair of bearing frames which are arranged oppositely, and an angle adjusting mechanism for adjusting the bearing angle between the two bearing frames is respectively connected between the two bearing frames and the bearing plate.

6. An automatic erecting device for a paper tube as recited in claim 5, wherein: the angle adjusting mechanism comprises an adjusting rod, the adjusting rod faces towards one end of the bearing plate, a first connecting lug is hinged to one end of the bearing plate, the first connecting lug is installed on the bearing plate, the other end of the adjusting rod is hinged to a second connecting lug, and the second connecting lug is installed on a second connecting rod arranged on the bearing plate through a bolt.

7. An automatic erecting device for a paper tube as recited in claim 6, wherein: the adjusting rod comprises a sleeve, one end of the sleeve is a closed end, and the other end of the sleeve is a threaded open end;

the closed end of the sleeve is provided with a through hole, a third connecting rod penetrates through the through hole, one end of the third connecting rod is positioned in the sleeve, the end part of the third connecting rod is provided with a limiting block, the limiting block is in sliding fit with the inner cavity of the sleeve, and the other end of the third connecting rod extends to the outer side of the sleeve and is hinged with the first connecting lug;

the threaded opening end of the sleeve is sleeved with a threaded rod in a threaded manner, and the threaded rod is hinged to the second connecting lug.

8. An automatic erecting device for a paper tube as recited in claim 5, wherein: the telescopic end of the first hydraulic rod is hinged to a third connecting lug arranged at the bottom of the bearing plate, and the cylinder body of the first hydraulic rod is hinged to the base.

9. An automatic erecting device for a paper tube as recited in claim 1, wherein: one end of the erection frame, which is hinged with the base, is also provided with a bearing pad.

Technical Field

The invention relates to the technical field of paper tube processing devices, in particular to an automatic paper tube erecting device.

Background

In the application of the packaging industry, the application of the paper tube is very wide, such as chemical fiber industrial tubes, paper making industrial tubes, metallurgy industrial tubes, packaging tubes and the like, the paper tube is used as a main component of article packaging and is used as a slitting and winding carrier of various products, and the production precision and the quality of the paper tube not only influence the appearance quality of the packaged products, but also influence the production efficiency of the products.

The quality and the required precision of present each trade to the fiber container are higher and higher, and the manufacturing pressure of fiber container manufacturing factory also increases day by day, and in present fiber container production process, to the great fiber container of size, lack the device that can with fiber container production line looks adaptation, take off the fiber container from the production line is automatic, mainly rely on artifical manual transport at present, and artifical transport has intensity of labour big, problem that work efficiency is low.

Therefore, the automatic paper tube erecting device is developed to replace workers to quickly take qualified paper tubes which are produced and detected from a production line, so that the production efficiency and quality of the paper tubes are ensured, and the automatic paper tube erecting device not only has urgent research value, but also has good economic benefit and industrial application potential, and is the basis of the power which is completed by the automatic paper tube erecting device.

Disclosure of Invention

The present inventors have conducted intensive studies to overcome the above-identified drawbacks of the prior art, and as a result, have completed the present invention after having made a great deal of creative efforts.

Specifically, the technical problems to be solved by the present invention are: the utility model provides an automatic device that erects of fiber container to in solving present fiber container production process, lack the device that can with fiber container production line looks adaptation to large-scale fiber container, mainly rely on artifical manual transport at present, there is intensity of labour big, problem that work efficiency is low.

In order to solve the technical problems, the technical scheme of the invention is as follows:

an automatic paper tube erecting device comprises a conveying and transferring mechanism and a paper tube erecting mechanism, wherein the paper tube erecting mechanism is positioned on one side of the conveying and transferring mechanism in the conveying direction;

the conveying and transferring mechanism comprises a conveying frame which can be lifted and is obliquely arranged, a control box is arranged at the bottom of the conveying frame, a plurality of conveying rollers are arranged on the conveying frame in a row, a conveying belt is sleeved on the plurality of conveying rollers and is connected with a paper tube production line, a photoelectric sensor is installed at the input end of the conveying frame, and a lifting intercepting mechanism is arranged on one side of the conveying frame, which is close to the paper tube erecting mechanism;

the paper tube erecting mechanism comprises a base, wherein an erecting frame capable of adjusting the bearing angle is arranged on the base, one end of the erecting frame is hinged with the base, the other end of the erecting frame abuts against the base, and a first hydraulic rod used for pushing the erecting frame to erect around the base is further connected between the erecting frame and the base.

As an improved scheme, the conveying frame is obliquely arranged on a cross beam, two ends of the cross beam are respectively connected with piston rods of hydraulic cylinders, cylinder bodies of the hydraulic cylinders are arranged on a base, and the control box is also arranged on the base;

the top of the hydraulic cylinder body is provided with connecting plates, and a first connecting rod is connected between the two connecting plates.

As an improved scheme, the lifting intercepting mechanism comprises an intercepting plate, the intercepting plate is rotatably installed on one side of the conveying frame along the conveying direction, a telescopic end of a second hydraulic rod is hinged to the intercepting plate, a cylinder body of the second hydraulic rod is hinged to a supporting plate, the supporting plate is installed on the conveying frame, and a reinforcing plate is further arranged between the supporting plate and the bottom of the conveying frame.

As an improved scheme, two oppositely arranged supporting columns are installed on the base, a pair of oppositely arranged supporting lugs is installed at the top of one supporting column, a connecting frame is rotatably connected between the two supporting lugs through a connecting shaft, and the connecting frame is installed at the bottom of one end of the erection frame.

As a modified scheme, the erection frame comprises a bearing plate, the connecting frame is arranged at the bottom of one end of the bearing plate, and the other end of the bearing plate abuts against the supporting column;

the two sides of the bearing plate along the conveying direction are respectively hinged with a pair of bearing frames which are arranged oppositely, and an angle adjusting mechanism for adjusting the bearing angle between the two bearing frames is respectively connected between the two bearing frames and the bearing plate.

As an improved scheme, the angle adjusting mechanism comprises an adjusting rod, wherein the adjusting rod faces towards one end of the bearing plate and is hinged with a first connecting lug, the first connecting lug is installed on the bearing plate, the other end of the adjusting rod is hinged with a second connecting lug, and the second connecting lug is installed on a second connecting rod arranged on the bearing plate through a bolt.

As an improved scheme, the adjusting rod comprises a sleeve, one end of the sleeve is a closed end, and the other end of the sleeve is a threaded open end;

the closed end of the sleeve is provided with a through hole, a third connecting rod penetrates through the through hole, one end of the third connecting rod is positioned in the sleeve, the end part of the third connecting rod is provided with a limiting block, the limiting block is in sliding fit with the inner cavity of the sleeve, and the other end of the third connecting rod extends to the outer side of the sleeve and is hinged with the first connecting lug;

the threaded opening end of the sleeve is sleeved with a threaded rod in a threaded manner, and the threaded rod is hinged to the second connecting lug.

As an improved scheme, the telescopic end of the first hydraulic rod is hinged to a third connecting lug arranged at the bottom of the bearing plate, and a cylinder body of the first hydraulic rod is hinged to the base.

As an improved scheme, a bearing pad is further arranged at one end of the erection frame, which is in hinged connection with the base.

After the technical scheme is adopted, the invention has the beneficial effects that:

the conveying and transferring mechanism is provided with the conveying belt, the conveying belt is connected with a paper tube production line, so that paper tubes produced on the production line can directly reach the conveying belt, the conveying belt is provided with the photoelectric sensor, whether the paper tubes on the conveying belt are conveyed in place or not is detected, the paper tubes on the conveying belt slide onto the erection frame along the interception plate through rotation of the interception plate in the lifting interception mechanism, one end of the erection frame is pushed to erect around the base through extension of the first hydraulic rod, and the paper tubes are taken down from the erection frame, so that the paper tubes are taken down from the production line quickly, workers do not need to carry the paper tubes manually, labor intensity of manual carrying is reduced, and working efficiency is improved;

the conveying frame is obliquely arranged on the cross beam, the paper tube can freely slide to the erection frame from the conveying frame under the condition of no obstruction by oblique installation, the height of the conveying frame can be adjusted by respectively connecting hydraulic cylinders at two ends of the cross beam, the height matching between the conveying frame and the production line and between the conveying frame and the erection frame is facilitated, and the strength and the stability of the conveying transfer mechanism are enhanced by arranging the first connecting rod;

the second hydraulic rod is arranged, the telescopic end of the second hydraulic rod is hinged with the interception plate, the cylinder body of the second hydraulic rod is hinged with the support plate, the interception plate rotates through the contraction of the second hydraulic rod, the interception plate is connected with the erection frame, and paper tubes on the conveying frame can conveniently slide on the erection frame;

through bearing frame and loading board and setting up angle adjustment mechanism, can adjust the contained angle between two bear the frame through angle adjustment mechanism to be suitable for not unidimensional fiber container, thereby reinforcing the suitability and the commonality of device.

In conclusion, the invention solves the problems that in the existing paper tube production process, a large paper tube is lack of a device which can be matched with a paper tube production line, and the existing paper tube is mainly carried by manpower, so that the labor intensity is high and the working efficiency is low.

Drawings

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

FIG. 2 is a schematic view of the structure of the transfer mechanism of the present invention;

FIG. 3 is a schematic side view of the transfer mechanism of the present invention;

FIG. 4 is a schematic view of the construction of the paper tube erecting mechanism and the load bearing pad of the present invention;

FIG. 5 is a schematic view of the other angular orientation of the paper tube erecting mechanism of the present invention;

FIG. 6 is a schematic view of a partial cross-sectional structure of an adjustment lever according to the present invention;

wherein each numerical designation refers to a particular meaning, element, and/or component, respectively, as follows in the figures.

In the figure: 1. the device comprises a conveying frame, 2, a control box, 3, a conveying roller, 4, a conveying belt, 5, a photoelectric sensor, 6, a lifting intercepting mechanism, 601, an intercepting plate, 602, a second hydraulic rod, 603, a supporting plate, 604, a reinforcing plate, 7, a base, 8, a standing frame, 9, a first hydraulic rod, 10, a cross beam, 11, a hydraulic cylinder, 12, a base, 13, a connecting plate, 14, a first connecting rod, 15, a supporting column, 16, a supporting lug, 17, a connecting frame, 18, a bearing plate, 19, a bearing frame, 20, an angle adjusting mechanism, 201, an adjusting rod, 2011, a sleeve, 2012, a third connecting rod, 2013, a limiting block, 2014, a threaded rod, 202, a first connecting lug, 203, a second connecting lug, 204, a second connecting rod, 21, a third connecting lug, 22 and a bearing pad.

Detailed Description

The invention is further illustrated by the following specific examples. The use and purpose of these exemplary embodiments are to illustrate the present invention, not to limit the actual scope of the present invention in any way, and not to limit the scope of the present invention in any way.

As shown in fig. 1-2, an automatic paper tube erecting device comprises a conveying and transferring mechanism and a paper tube erecting mechanism, wherein the paper tube erecting mechanism is positioned at one side of the conveying and transferring mechanism along the conveying direction;

the conveying and transferring mechanism comprises a conveying frame 1 which can be lifted and obliquely arranged, a control box 2 is arranged at the bottom of the conveying frame 1, a PLC (programmable logic controller) and a power distribution cabinet are arranged in the control box 2, a plurality of conveying rollers 3 are arranged on the conveying frame 1 in an array manner, a driving motor is connected onto one conveying roller 3 at one end of the conveying frame 1 and connected with the control box 2, a conveying belt 4 is sleeved on the plurality of conveying rollers 3, the conveying belt 4 is connected with a paper tube production line, paper tubes produced on the paper tube production line can directly reach the conveying belt 4, an arrow in the figure 2 shows the moving direction of the paper tubes, a photoelectric sensor 5 is installed at the input end of the conveying frame 1 and can detect whether the paper tubes are conveyed in place on the conveying frame 1, the photoelectric sensor 5 is also connected with the control box 2, and a lifting interception mechanism 6 is arranged at one side;

the paper tube erecting mechanism comprises a base 7, an erecting frame 8 capable of adjusting the bearing angle is arranged on the base 7, one end of the erecting frame 8 is hinged with the base 7, the other end of the erecting frame 8 is abutted against the base 7, a first hydraulic rod 9 used for pushing the erecting frame 8 to erect around the base 7 is further connected between the erecting frame 8 and the base 7, a conveying transfer mechanism is arranged, a conveying belt 4 is arranged on the conveying transfer mechanism, the conveying belt 4 is connected with a paper tube production line, the paper tube produced on the production line can directly reach the conveying belt 4, a photoelectric sensor 5 is arranged on the conveying belt 4 to detect whether the paper tube on the conveying belt 4 is conveyed in place or not, the paper tube on the conveying belt 4 slides down onto the erecting frame 8 along the interception plate 601 through the rotation of the interception plate 601 in the lifting interception mechanism 6, one end of the erecting frame 8 is pushed to erect around the base 7 through the extension of the first hydraulic rod 9, and is taken down from the erecting frame, therefore, the paper tube can be quickly taken down from the production line, the manual carrying of workers is not needed, the labor intensity of manual carrying is reduced, and the working efficiency is improved.

In the embodiment, as shown in fig. 2-3, the transportation frame 1 is obliquely bolted to the cross beam 10, so that the paper tube can freely slide from the transportation frame 1 to the erection frame 8 without being blocked by oblique installation, the two ends of the cross beam 10 are respectively bolted to piston rods of hydraulic cylinders 11, the cylinder bodies of the hydraulic cylinders 11 are all bolted to the base 12, the two ends of the cross beam 10 are respectively connected to the hydraulic cylinders 11, so that the height of the transportation frame 1 can be adjusted, the height adjustment between the transportation frame 1 and the paper tube production line and between the transportation frame 1 and the erection frame 8 is facilitated, and the control box 2 is also installed on the base 12;

the top of the hydraulic cylinder 11 is welded with a connecting plate 13, a first connecting rod 14 is connected between the two connecting plates 13 through a bolt, and the strength and the stability of the conveying and transferring mechanism are enhanced through the first connecting rod 14.

In this embodiment, as shown in fig. 2 to fig. 3, the lifting intercepting mechanism 6 includes an intercepting plate 601, the intercepting plate 601 is rotatably installed on one side of the conveying frame 1 along the conveying direction through a hinge, a telescopic end of a second hydraulic rod 602 is hinged to the intercepting plate 601, a cylinder body of the second hydraulic rod 602 is hinged to a supporting plate 603, rotation of the intercepting plate 601 is achieved through contraction of the second hydraulic rod 602, the intercepting plate 601 is connected with the erection frame 8, so that a paper tube on the conveying frame 1 can conveniently slide onto the erection frame 8, the supporting plate 603 is mounted on the conveying frame 1 through bolts, a reinforcing plate 604 is further arranged between the supporting plate 603 and the bottom of the conveying frame 1, and strength and stability of the supporting plate 603 are enhanced through the reinforcing plate 604.

In this embodiment, as shown in fig. 4 to 5, two support columns 15 are installed on the base 7, in this embodiment, the support columns 15 are made of rectangular steel and installed on the base 7 by welding, wherein a pair of support lugs 16 is installed on a top bolt of one support column 15, the two support lugs 16 are rotatably connected with a connecting frame 17 through a connecting shaft, the connecting frame 17 is installed at the bottom of one end of the erection frame 8, the other end of the erection frame 8 abuts against the other support column 15, when the first hydraulic rod 9 extends, one end of the erection frame 8 can be pushed to rotate around the connecting position of the support rods, so as to erect the paper tube on the erection frame 8.

In this embodiment, as shown in fig. 4-5, the erecting frame 8 comprises a bearing plate 18, the connecting frame 17 is mounted at the bottom of one end of the bearing plate 18, and the other end of the bearing plate 18 abuts against the other supporting column 15;

the bearing plate 18 is hinged with a pair of bearing frames 19 which are arranged oppositely on two sides in the conveying direction respectively, an angle adjusting mechanism 20 for adjusting the bearing angle between the two bearing frames 19 is connected between the two bearing frames 19 and the bearing plate 18 respectively, and the included angle between the two bearing frames 19 can be adjusted through the angle adjusting mechanism 20 so as to be suitable for paper tubes with different sizes, thereby enhancing the applicability and the universality of the device.

In this embodiment, as shown in fig. 4 to 5, the angle adjusting mechanism 20 includes an adjusting rod 201, one end of the adjusting rod 201 facing the bearing plate 18 is hinged to a first connecting lug 202, the first connecting lug 202 is bolted to the bearing plate 18, the other end of the adjusting rod 201 is hinged to a second connecting lug 203, and the second connecting lug 203 is mounted on a second connecting rod 204 disposed on the bearing frame 19 through a bolt.

In this embodiment, as shown in fig. 4 to 6, the adjusting rod 201 includes a sleeve 2011, one end of the sleeve 2011 is a closed end, and the other end is a threaded open end;

the closed end of the sleeve 2011 is provided with a through hole, a third connecting rod 2012 is slidably arranged in the through hole in a penetrating manner, one end of the third connecting rod 2012 is positioned in the sleeve 2011, the end part of the third connecting rod 2012 is provided with a limiting block 2013, the limiting block 2013 and the third connecting rod 2012 can be integrated into a whole and can also be connected together in a bolt or welding mode, the limiting block 2013 is in sliding fit with the inner cavity of the sleeve 2011, and the other end of the third connecting rod 2012 extends to the outer side of the sleeve 2011 and is hinged with the first connecting lug 202, so that the sleeve 2011 can rotate along the third connecting rod 2012;

a threaded rod 2014 is sleeved on the threaded opening end of the sleeve 2011 in a threaded manner, and the threaded rod 2014 is hinged with the second connecting lug 203, so that the length of the adjusting rod 201 is adjusted by rotating the sleeve 2011, and the angle between the bearing frame 19 and the bearing plate 18 is adjusted;

in addition, an anti-slip pattern for increasing the adjustment friction force is provided on the outer side of the sleeve 2011.

In this embodiment, as shown in fig. 4 and 5, the telescopic end of the first hydraulic rod 9 is hinged to a third engaging lug 21 disposed at the bottom of the bearing plate 18, the third engaging lug 21 is welded to the bottom of the bearing plate 18, and the cylinder body of the first hydraulic rod 9 is hinged to the base 7.

In this embodiment, as shown in fig. 1 and 4, a bearing pad 22 is further disposed at one end of the erection frame 8, which is hinged to the base 7, and an impact-resistant foam layer is disposed on the top of the bearing pad 22, so that the paper tube can directly fall onto the bearing frame 19 when sliding off from the bearing frame 19 by disposing the bearing frame 19, thereby avoiding damage to the paper tube.

For ease of understanding, the working process of the present embodiment is given below:

as shown in fig. 1-6, the conveying and transferring mechanism is connected with the paper tube production line, so that the paper tubes produced on the paper tube production line directly reach the conveying belt 4 of the conveying frame 1, and the paper tube erecting mechanism is placed on one side of the conveying frame 1, which is provided with the lifting and intercepting mechanism 6;

when the photoelectric sensor 5 detects that the paper tube reaches a specified position on the conveying belt 4, the photoelectric sensor 5 transmits a signal to the control box 2, the control box 2 controls the conveying belt 4 to stop working, the telescopic end of the second hydraulic rod 602 contracts to drive the interception plate 601 to rotate towards one side of the paper tube vertical mechanism, and as the conveying frame 1 is obliquely arranged, the paper tube on the conveying belt 4 simultaneously slides towards the interception plate 601 and slides between the two bearing frames 19 of the erection frame 8 through the interception plate 601 in the rotating process of the interception plate 601;

the telescopic end of the first hydraulic rod 9 is then extended to push the erecting frame 8 to rotate about the support post 15 of the base 7, so that the paper tube on the carriage 19 slides down onto the bearing pad 22, thereby removing the large paper tube from the production line.

In conclusion, the invention solves the problems that in the existing paper tube production process, a large paper tube is lack of a device which can be matched with a paper tube production line, and the existing paper tube mainly depends on manual carrying, so that the labor intensity is high and the working efficiency is low.

It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.

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