Conveying device

Abstract

The utility model provides a conveying device which comprises an upper-layer conveying assembly and a lower-layer conveying assembly, and the upper-layer conveying assembly is located above the lower-layer conveying assembly. The transferring assembly is movably arranged at the end of the upper-layer conveying assembly and located above the lower-layer conveying assembly. The pushing assembly is movably arranged on the upper-layer conveying assembly and used for pushing objects located on the upper-layer conveying assembly to the transferring assembly, and at least part of the transferring assembly is movably arranged in the vertical direction so as to drive the objects located on the transferring assembly to move to the lower-layer conveying assembly, so that the objects are conveyed by the lower-layer conveying assembly; the problems that in the prior art, due to manual feeding and taking, efficiency is low, and labor cost is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor lines, and more specifically, to a conveying device. Background Art

[0002] At present, for the existing pallet conveying mechanism, the pallet is used to load microelectronic components and is conveyed by a conveyor. However, the pallet conveying mechanism is relatively complex. And to save space, most pallets are stacked. To convey the stacked pallets one by one, a manipulator is often used to clamp and transfer the stacked pallets from the blanking pallet rack beside the conveyor to the conveyor one by one, or to clamp the pallets from the conveyor and transfer them to the feeding pallet rack beside the conveyor one by one for stacking and collection.

[0003] However, conventionally, operators position and place each pallet on the manipulator loading station. After the picking is completed, the pallet is manually taken out by the operator, and a new pallet is put in. The manipulator operates in a cycle. For multiple process operations, the operator also needs to manually transfer the pallet completed in the previous process to the next process, resulting in low efficiency and high labor costs. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a conveying device to solve the problems of low efficiency and high labor costs caused by manual loading and unloading in the prior art.

[0005] To achieve the above purpose, the utility model provides a conveying device, including: an upper conveying component and a lower conveying component, the upper conveying component is located above the lower conveying component; a transfer component, movably arranged at the end of the upper conveying component and located above the lower conveying component; a pushing component, movably arranged on the upper conveying component to push an object located on the upper conveying component onto the transfer component. At least part of the transfer component is movably arranged in the vertical direction to drive the object located thereon to move onto the lower conveying component, so that the lower conveying component conveys the object.

[0006] Further, the transfer component includes: two support frames; a transfer frame, movably connected to the two support frames in the vertical direction. Two bearing members are arranged on the transfer frame at relatively spaced positions, so that the pushing component pushes the object located on the upper conveying component to move onto the transfer frame and contact the two bearing members.

[0007] Further, the transfer component further includes: two first sliding members, oppositely arranged on the transfer frame. First guide rails are respectively arranged on the two support frames, and the two first sliding members are respectively connected to the two first guide rails; a first driving component, one of the two first sliding members is connected to the driving end of the first driving component to drive the transfer frame to move in the vertical direction.

[0008] Furthermore, the pushing component includes: a fixed base; a pushing member movably disposed on the fixed base along the extending direction of the upper conveying component, and the pushing member is rotatably disposed so that the end of the pushing member rotates to contact an object and the pushing member pushes the object to move onto the transfer component.

[0009] Furthermore, the pushing component further includes: a second sliding member, a second guide rail is provided on the fixed base, and the second sliding member is slidably connected to the second guide rail; a second driving member, the second sliding member is connected to the driving end of the second driving member to drive the second sliding member to move along the extending direction of the second guide rail; a third driving member, connected to the second sliding member through a connecting member, and the pushing member is connected to the driving end of the third driving member to drive the end of the pushing member to contact the object.

[0010] Furthermore, the conveying device further includes: a plurality of positioning and clamping structures spaced along the extending direction of the upper conveying component on the upper conveying component, and the positioning and clamping structure includes two clamping components moving relatively to each other so that when an object located on the upper conveying component is working, at least part of the two clamping components moves to contact the object respectively to clamp the object.

[0011] Furthermore, the clamping component includes: a fourth driving member; a clamping member connected to the driving end of the fourth driving member, and the clamping member includes a first plate segment and a second plate segment connected to each other and arranged at an angle so that the fourth driving member drives the first plate segment and the second plate segment to contact the two end faces of the object at an angle respectively to clamp the object.

[0012] Furthermore, the conveying device further includes: a blocking component provided on the upper conveying component, and the blocking component includes a movably arranged blocking member so that the blocking member moves to a position between the object clamped by the positioning and clamping structure and an adjacent object to block the object.

[0013] Furthermore, the blocking component includes: a mounting frame; a fifth driving member provided on the mounting frame, and the blocking member is connected to the driving end of the fifth driving member to drive the blocking member to move in the vertical direction.

[0014] Furthermore, the upper conveying component includes a first frame body and a first conveyor belt movably arranged on the first frame body for conveying an object in a first direction; and / or, the lower conveying component includes a second frame body and a second conveyor belt movably arranged on the second frame body for conveying an object in a second direction.

[0015] Applying the technical solution of the present utility model, the conveying device includes an upper conveying component, a lower conveying component, a transfer component, and a pushing component; the upper conveying component is located above the lower conveying component; the transfer component is movably arranged at the end of the upper conveying component and above the lower conveying component; the pushing component is movably arranged on the upper conveying component for pushing an object located on the upper conveying component onto the transfer component, and at least a part of the transfer component is movably arranged in the vertical direction to drive the object located thereon to move onto the lower conveying component, so that the lower conveying component conveys the object. In this way, multiple pallets are conveyed to the working station to be operated by the upper conveying component. After all the pallets are processed, the upper conveying component conveys the pallets to the transfer component. Since there is no power on the transfer component, the upper conveying component can only convey half of the pallets to the transfer component, and then the other half of the pallets is pushed onto the transfer component by the pushing component. Furthermore, the transfer component moves in the vertical direction and drives the pallets located thereon to contact the lower conveying component, so that the lower conveying component conveys the pallets to the manual palletizing position, and the pallets are recovered manually. During the production of multiple processes, the process of manually transferring the pallets completed in the previous process to the next process by workers is reduced, the production efficiency is improved, and manpower is saved. Thus, the problem of low efficiency and high labor cost caused by manual feeding and material taking in the prior art is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 Fig. shows a schematic diagram of the overall structure provided by an embodiment of the conveying device according to the present utility model.

[0018] Among them, the above-mentioned accompanying drawings include the following reference numerals:

[0019] 1. Object; 10. Upper conveying component; 11. First frame; 12. First conveyor belt; 20. Lower conveying component; 21. Second frame; 22. Second conveyor belt; 30. Transfer component; 31. Support frame; 310. First guide rail; 32. Transfer frame; 33. Carrier; 34. First sliding member; 35. First driving component; 40. Pushing component; 41. Fixed base; 410. Second guide rail; 42. Pushing member; 43. Second sliding member; 44. Second driving component; 45. Third driving component; 46. Connecting member; 50. Positioning and clamping structure; 51. Clamping component; 52. Fourth driving component; 53. Clamping member; 530. First plate segment; 531. Second plate segment; 60. Blocking component; 61. Blocking member; 62. Mounting frame; 63. Fifth driving component. Detailed implementation manners

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually illustrative only and in no way limits the present application and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0021] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments of the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0023] In order to solve the problems of low efficiency and high labor cost caused by manual feeding and material taking in the prior art, the present utility model provides a conveying device.

[0024] Please refer to Figure 1As shown in the figure, applying the technical solution of the present utility model, the conveying device includes an upper conveying component 10, a lower conveying component 20, a transfer component 30 and a pushing component 40; the upper conveying component 10 is located above the lower conveying component 20; the transfer component 30 is movably arranged at the end of the upper conveying component 10 and is located above the lower conveying component 20; the pushing component 40 is movably arranged on the upper conveying component 10 for pushing an object 1 located on the upper conveying component 10 onto the transfer component 30. At least a part of the transfer component 30 is movably arranged in the vertical direction to drive the object 1 located thereon to move onto the lower conveying component 20, so that the lower conveying component 20 conveys the object 1.

[0025] Applying the technical solution of this embodiment, multiple pallets are conveyed by the upper conveying component 10 to the working station to be operated. After all the pallets are processed, the upper conveying component 10 conveys the pallets onto the transfer component 30. Since there is no power on the transfer component 30, the upper conveying component 10 can only convey half of the pallets onto the transfer component 30, and then the other half of the pallets is pushed onto the transfer component 30 by the pushing component 40. Then, the transfer component 30 moves in the vertical direction and drives the pallets located thereon to contact the lower conveying component 20, so that the lower conveying component 20 conveys the pallets to the manual palletizing position, and the pallets are recovered manually. During the production of multiple processes, the process of manually transferring the pallets completed in the previous process to the next process by workers is reduced, the production efficiency is improved, and manpower is saved, thus solving the problem of low efficiency and high labor cost caused by manual feeding and taking in the prior art.

[0026] In this embodiment, the object 1 is a pallet, and the conveying directions of the upper conveying component 10 and the lower conveying component 20 are opposite directions.

[0027] Specifically, the transfer component 30 includes two support frames 31 and a transfer frame 32; the transfer frame 32 is movably connected to the two support frames 31 in the vertical direction. Two relatively spaced bearing members 33 are arranged on the transfer frame 32, so that the pushing component 40 pushes the object 1 located on the upper conveying component 10 to move onto the transfer frame 32 and contact the two bearing members 33. With the above arrangement, the two bearing members 33 are relatively arranged with a gap, and each bearing member 33 has a stepped surface. In this way, the pushing component 40 pushes the pallet to move to the position where it contacts the stepped surfaces of the two bearing members 33 of the transfer component 30, and then the transfer component 30 drives the pallet to move onto the lower conveying component 20 and is transported by the lower conveying component 20 to the manual palletizing position. The whole process does not require manual operation, improves the production efficiency, and reduces the waste of human resources.

[0028] To enable the transfer assembly 30 to move in the vertical direction, the transfer assembly 30 further includes two first sliding members 34 and a first driving member 35. The two first sliding members 34 are oppositely arranged on the transfer frame 32. First guide rails 310 are respectively provided on the two support frames 31, and the two first sliding members 34 are respectively connected to the two first guide rails 310. One of the two first sliding members 34 is connected to the driving end of the first driving member 35 to drive the transfer frame 32 to move in the vertical direction. With the above arrangement, the first driving member 35 is a driving motor. In this way, the first driving member 35 drives the first sliding member 34 to drive the transfer frame 32 to move along the extension direction of the first guide rail 310, so as to transport the tray to the lower conveying assembly 20.

[0029] Specifically, the pushing assembly 40 includes a fixed base 41 and a pushing member 42. The pushing member 42 is movably arranged on the fixed base 41 along the extension direction of the upper conveying assembly 10, and the pushing member 42 is rotatably arranged so that the end of the pushing member 42 rotates to contact the object 1 and the pushing member 42 pushes the object 1 to move onto the transfer assembly 30. In this way, after the tray on the upper conveying assembly 10 completes its work, the pushing member 42 is controlled to rotate until its end contacts the tray, and then the pushing member 42 is driven to move to push the tray onto the two bearing members 33, realizing the transfer of the tray.

[0030] In this application, the pushing assembly 40 further includes a second sliding member 43, a second driving member 44, and a third driving member 45. A second guide rail 410 is provided on the fixed base 41, and the second sliding member 43 is slidably connected to the second guide rail 410. The second sliding member 43 is connected to the driving end of the second driving member 44 to drive the second sliding member 43 to move along the extension direction of the second guide rail 410. The third driving member 45 is connected to the second sliding member 43 through a connecting member 46, and the pushing member 42 is connected to the driving end of the third driving member 45 to drive the end of the pushing member 42 to contact the object 1. With the above arrangement, the second driving member 44 and the third driving member 45 are respectively driving motors. In this way, the third driving member 45 first drives the pushing member 42 to rotate to the position where its end contacts the tray, and then the second driving member 44 drives the second sliding member 43 to drive the pushing member 42 to move along the extension direction of the second guide rail 410 to push the tray onto the transfer assembly 30.

[0031] As Figure 1As shown in the figure, the conveying device further includes a plurality of positioning and clamping structures 50; the plurality of positioning and clamping structures 50 are arranged on the upper conveying assembly 10 at intervals along the extending direction of the upper conveying assembly 10. The positioning and clamping structure 50 includes two clamping assemblies 51 that are relatively movable, so that when the object 1 located on the upper conveying assembly 10 is working, at least part of the two clamping assemblies 51 moves to contact the object 1 respectively to clamp the object 1. In this way, when the upper conveying assembly 10 transports the tray to the working station, the sensor receives the induction, and controls the two clamping assemblies 51 to move relatively to the position where they contact and clamp the tray, so as to position and clamp the tray to prevent the tray from shifting during the operation process.

[0032] Specifically, the clamping assembly 51 includes a fourth driving component 52 and a clamping component 53; the clamping component 53 is connected to the driving end of the fourth driving component 52. The clamping component 53 includes a first plate segment 530 and a second plate segment 531 that are connected to each other and arranged at an angle, so that the fourth driving component 52 drives the first plate segment 530 and the second plate segment 531 to contact the two end faces of the object 1 at an angle respectively to clamp the object 1. With the above settings, the fourth driving component is a driving motor, and the first plate segment 530 and the second plate segment 531 are arranged at a right angle. In this way, when the fourth driving component 52 drives the two clamping components 53 to move relatively to clamp the tray, the first plate segment 530 and the second plate segment 531 contact and clamp the two right-angle sides of the tray respectively, so as to limit the displacement of the tray along the horizontal direction on the upper conveying assembly 10.

[0033] In order to facilitate the stable operation of the tray, the conveying device further includes a blocking assembly 60; the blocking assembly 60 is arranged on the upper conveying assembly 10. The blocking assembly 60 includes a movably arranged blocking member 61, so that the blocking member 61 moves to the position between the object 1 clamped by the positioning and clamping structure 50 and an adjacent object 1 to block the object 1. In this way, when the tray is transported to the working station by the upper conveying assembly 10 and is fixedly clamped by the two clamping assemblies 51, the blocking member 61 is controlled to move between the tray and an adjacent tray to prevent the adjacent tray from hitting the tray and affecting the operation of the tray.

[0034] Specifically, the blocking assembly 60 includes a mounting frame 62 and a fifth driving component 63; the fifth driving component 63 is arranged on the mounting frame 62, and the blocking member 61 is connected to the driving end of the fifth driving component 63 to drive the blocking member 61 to move in the vertical direction. With the above settings, the fifth driving component 63 is a driving motor. In this way, after the tray is operating and is clamped and fixed by the two clamping assemblies 51, by controlling the fifth driving component 63 to drive the blocking member 61 to move between the tray and an adjacent tray, an adjacent tray is blocked from affecting the operation process of the tray.

[0035] In the present application, the upper conveying assembly 10 includes a first frame 11 and a first conveyor belt 12 movably disposed on the first frame 11 for conveying an object 1 in a first direction; the lower conveying assembly 20 includes a second frame 21 and a second conveyor belt 22 movably disposed on the second frame 21 for conveying the object 1 in a second direction. In this way, a plurality of pallets are transported to a plurality of corresponding operation processes through the first conveyor belt 12, and a plurality of empty pallets that have completed the operation are transported back to the manual palletizing position through the second conveyor belt 22. In the overall process, the manual handling of pallets in a plurality of operation processes is reduced, improving the production efficiency and saving labor at the same time.

[0036] In this embodiment, the width of the pallet is greater than or equal to the widths of the first conveyor belt 12 and the second conveyor belt 22. In this way, when the transfer assembly 30 drives the pallet to move in the vertical direction, the pallet contacts the second conveyor belt 22 and lands on the second conveyor belt 22 for being conveyed by the second conveyor belt 22.

[0037] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0038] The conveying device includes an upper conveying assembly, a lower conveying assembly, a transfer assembly, and a pushing assembly; the upper conveying assembly is located above the lower conveying assembly; the transfer assembly is movably disposed at the end of the upper conveying assembly and is located above the lower conveying assembly; the pushing assembly is movably disposed on the upper conveying assembly for pushing an object located on the upper conveying assembly onto the transfer assembly. At least a part of the transfer assembly is movably disposed in the vertical direction to drive the object located thereon to move onto the lower conveying assembly so that the lower conveying assembly conveys the object. In this way, a plurality of pallets are conveyed by the upper conveying assembly to the workstations to be operated. After all the pallets have completed the operations, the upper conveying assembly conveys the pallets onto the transfer assembly. Since there is no power on the transfer assembly, the upper conveying assembly can only convey half of the pallets onto the transfer assembly, and then the other half of the pallets is pushed onto the transfer assembly by the pushing assembly. Then, the transfer assembly moves in the vertical direction and drives the pallets located thereon to contact the lower conveying assembly, so that the lower conveying assembly conveys the pallets to the manual palletizing position for manual recovery of the pallets. During the production of a plurality of processes, the process of manually transferring the pallets completed in the previous process to the next process by workers is reduced, improving the production efficiency and saving labor, and thus solving the problem of low efficiency and high labor cost caused by manual feeding and material taking in the prior art.

[0039] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary explanation, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0040] For convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientation described in the drawings for the device. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0041] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present application.

[0042] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A conveying device, characterized in that, Comprising: An upper conveying assembly (10) and a lower conveying assembly (20), wherein the upper conveying assembly (10) is located above the lower conveying assembly (20); A transfer assembly (30), movably arranged at the end of the upper conveying assembly (10) and located above the lower conveying assembly (20); A pushing assembly (40), movably arranged on the upper conveying assembly (10) for pushing an object (1) located on the upper conveying assembly (10) onto the transfer assembly (30). At least part of the transfer assembly (30) is movably arranged in the vertical direction to drive the object (1) located thereon to move onto the lower conveying assembly (20), so that the lower conveying assembly (20) conveys the object (1).

2. The conveying device according to claim 1, wherein The transfer assembly (30) includes: Two support frames (31); A transfer frame (32), movably connected to the two support frames (31) in the vertical direction. Two relatively spaced bearing members (33) are arranged on the transfer frame (32), so that the pushing assembly (40) pushes the object (1) located on the upper conveying assembly (10) to move onto the transfer frame (32) and contact the two bearing members (33).

3. The conveying device according to claim 2, characterized in that, The transfer assembly (30) further includes: Two first sliding members (34), oppositely arranged on the transfer frame (32). First guide rails (310) are respectively arranged on the two support frames (31), and the two first sliding members (34) are respectively connected to the two first guide rails (310). A first driving member (35), one of the two first sliding members (34) is connected to the driving end of the first driving member (35) to drive the transfer frame (32) to move in the vertical direction.

4. The conveying device according to claim 1, characterized in that, The pushing assembly (40) includes: A fixed base (41); A pushing member (42), movably arranged on the fixed base (41) along the extending direction of the upper conveying assembly (10), and the pushing member (42) is rotatably arranged, so that the end of the pushing member (42) rotates to contact the object (1) and the pushing member (42) pushes the object (1) to move onto the transfer assembly (30).

5. The conveying device according to claim 4, characterized in that The pushing assembly (40) further includes: A second sliding member (43), a second guide rail (410) is arranged on the fixed base (41), and the second sliding member (43) is slidably connected to the second guide rail (410); A second driving member (44), the second sliding member (43) is connected to the driving end of the second driving member (44) to drive the second sliding member (43) to move along the extending direction of the second guide rail (410); A third driving member (45), connected to the second sliding member (43) through a connecting member (46), and the pushing member (42) is connected to the driving end of the third driving member (45) to drive the end of the pushing member (42) to contact the object (1).

6. The conveying device according to claim 1, characterized in that, The conveying device further includes: A plurality of positioning and clamping structures (50) are arranged on the upper conveying assembly (10) at intervals along the extending direction of the upper conveying assembly (10). The positioning and clamping structure (50) includes two clamping assemblies (51) arranged to move relative to each other, so that when the object (1) located on the upper conveying assembly (10) is working, at least part of the two clamping assemblies (51) moves to contact the object (1) respectively to clamp the object (1).

7. The conveying device according to claim 6, characterized in that The clamping assembly (51) includes: A fourth driving member (52); A clamping member (53) connected to the driving end of the fourth driving member (52). The clamping member (53) includes a first plate segment (530) and a second plate segment (531) which are connected to each other and arranged at an angle, so that the fourth driving member (52) drives the first plate segment (530) and the second plate segment (531) to contact the two end faces of the object (1) at an angle respectively to clamp the object (1).

8. The conveying device according to claim 6, wherein The conveying device further includes: A blocking assembly (60) arranged on the upper conveying assembly (10). The blocking assembly (60) includes a movably arranged blocking member (61), so that the blocking member (61) moves to a position between the object (1) clamped by the positioning and clamping structure (50) and an adjacent object (1) to block the object (1).

9. The conveying device according to claim 8, characterized in that, The blocking assembly includes: A mounting frame (62); A fifth driving member (63) arranged on the mounting frame (62). The blocking member (61) is connected to the driving end of the fifth driving member (63) to drive the blocking member to move in the vertical direction.

10. The conveying device according to claim 1, wherein, The upper conveying assembly (10) includes a first frame body (11) and a first conveyor belt (12) movably arranged on the first frame body (11) for conveying the object (1) in a first direction; and / or, The lower conveying assembly (20) includes a second frame body (21) and a second conveyor belt (22) movably arranged on the second frame body (21) for conveying the object (1) in a second direction.

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