Conveying device and sorting machine

Abstract

The utility model provides a conveying device and a sorting machine, and the conveying device comprises a machine base; the conveying belt is arranged on the machine base and linearly extends in the first direction; the lifting mechanism comprises a carrying table capable of moving in the second direction, the second direction intersects with the first direction, and the lifting mechanism is matched with the conveying belt to move relative to the conveying belt in the first direction. The conveying device provided by the utility model can realize the long-distance conveying of silicon wafers through the matching of the conveying belt and the lifting mechanism, and has the advantages of small realization difficulty, low precision requirement and low cost compared with a gear and rack transmission structure in the traditional technology. In addition, the conveying belt is arranged to be in a linear shape extending in the first direction, the advantage that the height of the conveying belt is reduced in the second direction is achieved, more lifting space can be reserved for a carrying table in the lifting mechanism, layout of the conveying device is facilitated, and the replacement frequency of the trays is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon wafer production equipment, and more specifically, to a conveying device and a sorting machine. Background Art

[0002] In the related art, silicon wafers for photovoltaics need to be sorted and archived during the production process, that is, the silicon wafers are sent into corresponding bins according to their grades (or positions), and the silicon wafers need to be transported over a long distance during the sorting process. The prior art uses a combination of a conveying structure and a lifting structure to convey the silicon wafers. However, the existing conveying structure requires a large amount of space, resulting in that the lifting structure can only be lifted within a small range, which is not conducive to the setting of the lifting structure. Summary of the Utility Model

[0003] The utility model provides a new technical solution for a conveying device, which can at least solve the problems of large space occupation of the conveying structure in the prior art and small lifting range of the lifting structure.

[0004] The utility model also provides a sorting machine, including the above-mentioned conveying device.

[0005] According to the first aspect of the utility model, a conveying device is provided, including: a machine base; a conveyor belt, which is arranged on the machine base and extends linearly along a first direction; a lifting mechanism, which includes a carrier movable along a second direction, the second direction intersects with the first direction, and the lifting mechanism cooperates with the conveyor belt to move relative to the conveyor belt in the first direction.

[0006] Optionally, the lifting mechanism includes: a frame, on which the carrier movable along the second direction is arranged; a driving wheel, which is rotatably arranged on the frame around its own axis; at least one tensioning wheel, which is rotatably arranged on the frame around its own axis, the tensioning wheel is arranged at an interval from the driving wheel, and the conveyor belt is wound between the driving wheel and the tensioning wheel.

[0007] Optionally, the number of the tensioning wheels is two, the driving wheel and the two tensioning wheels are distributed in a triangle, and in the first direction, the driving wheel is located between the two tensioning wheels.

[0008] Optionally, the conveyor belt is a synchronous belt, and the driving wheel is a synchronous pulley.

[0009] Optionally, a plurality of first teeth arranged along the first direction are provided on one side surface of the synchronous belt, and a plurality of second teeth are provided on the outer peripheral surface of the driving wheel, and the first teeth are engaged with the second teeth.

[0010] Optionally, the driving wheel is higher than the tensioning wheel, and the first teeth are provided on the lower surface of the synchronous belt.

[0011] Optionally, the width of the driving wheel in the first direction is greater than the width of the conveyor belt.

[0012] Optionally, at least one end of the tensioning wheel is provided with a baffle, and the baffle extends radially outward along the tensioning wheel to limit the conveyor belt in the width direction of the conveyor belt.

[0013] Optionally, the lifting mechanism further includes: a driving member, which is provided on the frame and connected to the driving wheel for driving the driving wheel to rotate.

[0014] Optionally, the lifting mechanism further includes: a guide wheel, which is rotatably provided on the frame around its own axis, the axis of the guide wheel extends along the second direction, and the guide wheel is in rolling connection with the conveyor belt.

[0015] Optionally, the lifting mechanism further includes: a brush, which is provided on the frame for cleaning the surface of the conveyor belt.

[0016] Optionally, the lifting mechanism further includes: a lifting assembly, which is connected to the carrier for moving the carrier along the second direction; a conveying assembly, which is provided on the frame and connected to the lifting assembly for conveying the lifting assembly along a third direction, and the third direction intersects with the first direction and the second direction respectively.

[0017] Optionally, the machine base is provided with a guide member extending along the first direction, and the lifting mechanism is provided with a cooperating member cooperating with the guide member, and the cooperating member is movable along the guide member.

[0018] According to the second aspect of the present invention, a sorting machine is provided, including the conveying device in any one of the above embodiments.

[0019] According to the conveying device of the present invention, the long-distance conveying of silicon wafers can be realized by the cooperation of the conveyor belt and the lifting mechanism. Compared with the structure of gear and rack transmission in the traditional technology, it has the advantages of small implementation difficulty, low precision requirement and low cost. In addition, compared with the traditional annular conveyor belt, the conveyor belt in this embodiment is set as a straight line extending along the first direction, which has the advantage of reducing its own height in the second direction, can leave more lifting space for the carrier in the lifting mechanism, facilitate the layout of the conveying device, and reduce the replacement frequency of the trays.

[0020] Through the following detailed description of the exemplary embodiments of the present invention with reference to the drawings, other features and advantages of the present invention will become clear. Brief Description of the Drawings

[0021] The drawings incorporated in and forming a part of the specification illustrate embodiments of the present utility model, and together with the description thereof are used to explain the principles of the present utility model.

[0022] Figure 1 is a perspective view of a conveying device according to an embodiment provided by the present utility model;

[0023] Figure 2 is Figure 1 an enlarged view of a partial structure in;

[0024] Figure 3 is Figure 3 an enlarged view of the circled part at A in;

[0025] Figure 4 is a front view of a conveying device according to an embodiment provided by the present utility model;

[0026] Figure 5 is Figure 4 an enlarged view of a partial structure in.

[0027] Reference Numerals

[0028] 100, conveying device;

[0029] 10, machine base; 11, fixing member; 12, guiding member;

[0030] 20, conveyor belt; 21, first tooth;

[0031] 30, lifting mechanism; 31, carrier; 32, frame; 321, fixing plate; 322, fitting member; 33, driving wheel; 331, second tooth; 34, tensioning wheel; 341, baffle; 35, driving member; 36, guide wheel; 37, brush; 38, lifting assembly; 39, conveying assembly. Detailed Description of the Embodiments

[0032] Various exemplary embodiments of the present utility model will now be described in detail with reference to the drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way limits the present utility model or its application or use.

[0034] Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the specification.

[0035] In all of the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0036] It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

[0037] The conveying device 100 according to an embodiment of the present invention will be specifically described below with reference to the accompanying drawings.

[0038] As Figures 1 to 5 shown, the conveying device 100 according to an embodiment of the present invention includes: a machine base 10, a conveyor belt 20, and a lifting mechanism 30.

[0039] Specifically, the conveyor belt 20 is provided on the machine base 10 and extends linearly in a first direction. The lifting mechanism 30 includes a stage 31 that is movable in a second direction, the second direction intersects the first direction, and the lifting mechanism 30 cooperates with the conveyor belt 20 to move relative to the conveyor belt 20 in the first direction.

[0040] In other words, the conveying device 100 according to an embodiment of the present invention mainly consists of a machine base 10, a conveyor belt 20, and a lifting mechanism 30. The conveying device 100 can transport silicon wafers into a tray corresponding to the grade of the silicon wafers according to the grade of the silicon wafers. The trays for storing silicon wafers are stacked in the second direction. Therefore, it is necessary to move the stage 31 on the lifting mechanism 30 in the second direction to send the silicon wafers into the corresponding trays.

[0041] The machine base 10 can be used as a carrier for installing and fixing the conveyor belt 20. The conveyor belt 20 can extend in a first direction, and the conveyor belt 20 is linear. At least two points on the conveyor belt 20 in its own length direction can be fixed to the machine base 10 so that the conveyor belt 20 is in a stretched state.

[0042] The device (such as a grading device) upstream of the conveying device 100 is spaced apart from the tray in the first direction. The lifting mechanism 30 is connected to the conveyor belt 20 and can move along the conveyor belt 20 to transport the silicon wafers output by the upstream device to the corresponding tray.

[0043] It should be noted that during the process of the lifting mechanism 30 moving along the conveyor belt 20, the conveyor belt 20 and the machine base 10 remain stationary, and the lifting mechanism 30 itself undergoes displacement. For example, the lifting mechanism 30 can be made to travel along the conveyor belt 20 through wheels, or a pulley can be provided to form a winding with the conveyor belt 20 so that a relative displacement occurs between the lifting mechanism 30 and the conveyor belt 20 when the pulley rotates.

[0044] The conveying process of the conveying device 100 of this embodiment will be described in detail below.

[0045] The lifting mechanism 30 obtains wafers from the upstream device, and the wafers are carried on the stage 31. The lifting mechanism 30 moves along the conveyor belt 20 to the position where the tray is located. The stage 31 moves in the second direction to the same height as the tray corresponding to the grade of the wafer, and then feeds the wafer into the tray to complete the sorting of the wafers.

[0046] Thus, according to the conveying device 100 of the embodiment of the present invention, through the cooperation of the conveyor belt 20 and the lifting mechanism 30, the long-distance conveying of wafers can be realized. Compared with the structure of gear-rack transmission in the traditional technology, it has the advantages of small implementation difficulty, low precision requirement, and low cost. In addition, compared with the traditional annular conveyor belt 20, the conveyor belt 20 in this embodiment is set as a straight line extending in the first direction, which has the advantage of reducing its own height in the second direction, can leave more lifting space for the stage 31 in the lifting mechanism 30, facilitate the layout of the conveying device 100, and reduce the replacement frequency of the trays.

[0047] Optionally, the first direction can be perpendicular to the second direction. For example, the first direction can be the horizontal direction and the second direction can be the vertical direction.

[0048] In some alternative embodiments, both ends of the conveyor belt 20 can be fixedly connected to the machine base 10 through the fixing member 11. The fixing member 11 can include a pressing plate, and the pressing plate is detachably connected to the machine base 10, for example, by bolt connection. When the conveyor belt 20 needs to be tensioned and adjusted, the pressing plate can be removed, the conveyor belt 20 can be tightened, and then the pressing plate can be pressed against the conveyor belt 20 and the pressing plate can be locked with the machine base 10.

[0049] According to an embodiment of the present invention, the lifting mechanism 30 includes a frame 32, a driving wheel 33, and at least one tensioning wheel 34. A stage 31 that can move along the second direction is provided on the frame 32. The driving wheel 33 is rotatably provided on the frame 32 around its own axis. The tensioning wheel 34 is rotatably provided on the frame 32 around its own axis. The tensioning wheel 34 is spaced apart from the driving wheel 33, and the conveyor belt 20 is wound between the driving wheel 33 and the tensioning wheel 34.

[0050] Specifically, the frame 32 can be used to install the driving wheel 33 and the tensioning wheel 34, and the driving wheel 33 and the tensioning wheel 34 can rotate around their respective rotating shafts. The axis of the driving wheel 33 can extend along the third direction, and the axis of the tensioning wheel 34 can be parallel to the axis of the driving wheel 33. The driving wheel 33 and the tensioning wheel 34 can be spaced apart and do not contact each other to avoid interference with each other.

[0051] The driving wheel 33 can serve as a power wheel to provide power, and the tensioning wheel 34 can serve as a driven wheel. By rotating the driving wheel 33, the lifting mechanism 30 can be moved along the conveyor belt 20.

[0052] In addition, the conveyor belt 20 can be wound around the driving wheel 33 and the tensioning wheel 34. For example, one side surface of the conveyor belt 20 can abut against the outer peripheral surface of the driving wheel 33, and the other side surface of the conveyor belt 20 can abut against the outer peripheral surface of the tensioning wheel 34. At this time, the driving wheel 33 and the tensioning wheel 34 can be located at the same height in the second direction or can have a height difference.

[0053] It should be noted that the number of driving wheels 33 can be one or multiple, and is not limited herein. A single driving wheel 33 is beneficial to reducing costs, and multiple driving wheels 33 are beneficial to improving reliability and preventing the driving structure of one or several driving wheels 33 from failing. The number of tensioning wheels 34 can be one or multiple, and is not limited herein. A single tensioning wheel 34 is beneficial to reducing costs, and multiple tensioning wheels 34 are beneficial to tightening the conveyor belt 20 and more effectively preventing slipping.

[0054] In this embodiment, winding the conveyor belt 20 around the driving wheel 33 and the tensioning wheel 34 can increase the interaction force between the conveyor belt 20 and the driving wheel 33 and prevent slipping. In addition, arranging the driving wheel 33 and the tensioning wheel 34 in the lifting mechanism 30 can integrate complex structures in the lifting mechanism 30 and simplify the machine base 10.

[0055] According to some other embodiments of the present invention, the number of tensioning wheels 34 is two, and the driving wheel 33 and the two tensioning wheels 34 are distributed in a triangular shape. In the first direction, the driving wheel 33 is located between the two tensioning wheels 34.

[0056] Specifically, as Figure 5 shown, the connection lines between the centers of the two tensioning wheels 34 and one driving wheel 33 can form a triangle, and the triangle can include but is not limited to an equilateral triangle and an inverted triangle.

[0057] In addition, the two tensioning wheels 34 can be spaced apart in the first direction, and the driving wheel 33 can be arranged between the two tensioning wheels 34. The conveyor belt 20 can be wound around the two tensioning wheels 34 and one driving wheel 33 in a Ω shape. Thus, it is not only beneficial to improving the stability and reliability of the structure, but also has the advantages of simple structure and small volume, which is beneficial to saving space.

[0058] Preferably, the driving wheel 33 and the two tensioning wheels 34 are distributed in an isosceles triangle shape, and the distance between each tensioning wheel 34 and the driving wheel 33 can be equal, which is beneficial to further improving stability and reliability.

[0059] In some alternative embodiments, the arc length of the outer peripheral surface of the driving wheel 33 in contact with the conveyor belt 20 is ≥ 1 / 2 of the circumference of the driving wheel itself, and / or the arc length of the outer peripheral surface of the tensioning wheel 34 in contact with the conveyor belt 20 is ≥ 1 / 4 of the circumference of the driving wheel itself, which is beneficial to increasing the contact area between the conveyor belt 20 and the driving wheel 33 or between the conveyor belt 20 and the tensioning wheel 34, and is beneficial to further improving the stability of conveying and preventing slipping.

[0060] In some specific embodiments of the present invention, the conveyor belt 20 is a synchronous belt and the driving wheel 33 is a synchronous pulley. Multiple tooth-shaped structures can be provided on the surface of the synchronous belt, and mating structures can be provided on the synchronous pulley to cooperate with them. The connection and cooperation between the synchronous belt and the synchronous pulley have the advantages of high transmission efficiency, high transmission accuracy, and low maintenance cost.

[0061] According to some alternative embodiments of the present invention, multiple first teeth 21 arranged in a first direction are provided on one side surface of the synchronous belt, and multiple second teeth 331 are provided on the outer peripheral surface of the driving wheel 33, and the first teeth 21 are meshed with the second teeth 331.

[0062] Specifically, multiple first teeth 21 can be provided on the side surface of the synchronous belt that can be in contact with the driving wheel 33. The multiple first teeth 21 can be densely arranged in the first direction, and the first teeth 21 can extend along the axial direction of the driving wheel 33. Multiple second teeth 331 can be provided on the outer peripheral surface of the driving wheel 33, and the second teeth 331 can extend along the axial direction of the driving wheel. Through the meshing of the first teeth 21 and the second teeth 331, when the driving wheel 33 rotates, the driving wheel 33 can move along the synchronous belt, which is beneficial to preventing slipping and improving reliability.

[0063] The other side surface of the synchronous belt can be a smooth surface, and the tensioning wheel 34 can be in contact with this smooth surface to facilitate tensioning the synchronous belt.

[0064] According to some other embodiments of the present invention, the driving wheel 33 is higher than the tensioning wheel 34, and the first teeth 21 are provided on the lower surface of the synchronous belt.

[0065] Specifically, the second direction can be approximately the vertical direction, and the driving wheel 33 and the tensioning wheel 34 can be spaced apart in the second direction. Among them, the driving wheel 33 is located at a higher position, and the tensioning wheel 34 can be located at a lower position. As Figure 3 and Figure 5 shown, the driving wheel 33 is in contact with the lower surface of the synchronous belt, and the tensioning wheel 34 is in contact with the upper surface of the synchronous belt. Therefore, the first teeth 21 can be provided on the lower surface of the synchronous belt so that the first teeth 21 face the machine base 10, avoiding the exposure of the first teeth 21 from the upper surface of the synchronous belt, which is beneficial to protecting the tooth surface of the first teeth 21 and extending the service life of the synchronous belt.

[0066] In addition, arranging two tension wheels 34 below the driving wheel 33 is also conducive to reducing the overall height of the conveyor belt 20, further saving the space occupied by the conveyor belt 20 in the second direction, leaving more lifting space for the carrier 31 in the lifting mechanism 30, and facilitating the layout of the conveying device 100.

[0067] In some specific embodiments of the present utility model, the width of the driving wheel 33 in the first direction is greater than the width of the conveyor belt 20. The width of the driving wheel 33 in the first direction can be the distance between the two end faces of the driving wheel 33, and the width of the conveyor belt 20 can be the distance between the two sides of the conveyor belt 20 in the axial direction of the driving wheel 33.

[0068] Setting the width of the driving wheel 33 to be greater than the width of the conveyor belt 20 can make the conveyor belt 20 located in the middle of the driving wheel 33, prevent the conveyor belt 20 from slipping off, and is conducive to improving reliability.

[0069] According to some alternative embodiments of the present utility model, at least one end of the tension wheel 34 is provided with a baffle 341, and the annular plate extends radially outward along the tension wheel 34 to limit the conveyor belt 20 in the width direction of the conveyor belt 20.

[0070] Specifically, as Figure 3 shown, one end or both ends of the tension wheel 34 can be provided with a baffle 341, and the baffle 341 extends beyond the outer peripheral surface of the tension wheel 34 in the radial direction of the tension wheel 34, so as to be able to limit the displacement of the conveyor belt 20 in the axial direction of the tension wheel 34, that is, the width direction of the conveyor belt 20, and prevent the conveyor belt 20 from slipping off the tension wheel 34.

[0071] Optionally, the baffle 341 can be annular, so that the conveyor belt 20 can always be blocked by the baffle 341 during the rotation of the tension wheel 34.

[0072] According to some other embodiments of the present utility model, the lifting mechanism 30 further includes a driving member 35, and the driving member 35 is arranged on the frame 32 and connected to the driving wheel 33 for driving the driving wheel 33 to rotate.

[0073] Specifically, a fixing plate 321 can be provided on the frame 32, the fixing plate 321 can extend along the second direction, the driving wheel 33 and the tension wheel 34 can be arranged on one side of the fixing plate 321, and the driving member 35 can be arranged at the other end of the fixing plate 321. The driving member 35 can include, but is not limited to, a motor. Arranging the driving member 35 to drive the driving wheel 33 is conducive to realizing the automatic control of the conveying device 100.

[0074] In some specific embodiments of the present utility model, the lifting mechanism 30 further includes a guide wheel 36, the guide wheel 36 is rotatably arranged on the frame 32 around its own axis, the axis of the guide wheel 36 extends along the second direction, and the guide wheel 36 is in rolling connection with the conveyor belt 20.

[0075] Specifically, one or more guide wheels 36 may be provided on the frame 32, and the number of the guide wheels 36 is not limited herein. The guide wheels 36 may be provided on at least one side in the width direction of the conveyor belt 20 and can roll along the surface of the conveyor belt 20. The arrangement of the guide wheels 36 can limit the conveyor belt 20 in the width direction of the conveyor belt 20 to guide the conveyor belt 20 into the tensioning wheel 34 and prevent the conveyor belt 20 from shifting and running amok.

[0076] As Figure 5 shown, two guide wheels 36 are provided on the frame 32. The two guide wheels 36 are arranged at intervals in the first direction. Both the driving wheel 33 and the tensioning wheel 34 are located between the two guide wheels 36, so as to guide the part of the conveyor belt 20 entering the tensioning wheel 34 and the part exiting the tensioning wheel 34, which is beneficial to further improve the stability and reliability of the conveying.

[0077] According to some alternative embodiments of the present invention, the lifting mechanism 30 further includes a brush 37. The brush 37 is provided on the frame 32 and is used for cleaning the surface of the conveyor belt 20.

[0078] As Figure 3 shown, the tensioning wheel 34, the driving wheel 33 and the driving member 35 may be combined to form a driving structure. The brush 37 may be provided at the front end or the rear end of the driving structure. The front end and the rear end respectively refer to the front end and the rear end of the moving direction of the lifting mechanism 30. Thus, during the movement of the lifting mechanism 30 along the conveyor belt 20, the brush 37 also moves relative to the conveyor belt 20, so as to be able to clean the conveyor belt 20 during the process of conveying the silicon wafers, thereby preventing foreign matters from remaining on the surface of the conveyor belt 20 and having an adverse impact on the conveying, and at the same time being beneficial to improving the service life of the conveyor belt 20.

[0079] According to some other embodiments of the present invention, the lifting mechanism 30 further includes a lifting assembly 38 and a conveying assembly 39. The lifting assembly 38 is connected to the carrier 31 and is used for lifting the carrier 31 in the second direction. The conveying assembly 39 is provided on the frame 32. The conveying assembly 39 is connected to the lifting assembly 38 and is used for conveying the lifting assembly 38 in the third direction. The third direction intersects with the first direction and the second direction respectively.

[0080] Specifically, a conveying assembly 39 may be provided on the frame 32. The conveying assembly 39 is connected to the lifting assembly 38 and can convey the lifting assembly 38 in the third direction. The lifting assembly 38 is connected to the carrier 31 and can convey the carrier 31 in the second direction. Therefore, through the cooperation of the driving wheel 33, the tensioning wheel 34 and the conveyor belt 20, the carrier 31 can be moved in the first direction. The conveying assembly 39 can move the carrier 31 in the third direction, and the lifting assembly 38 can move the carrier 31 in the second direction. Thus, the movement of the carrier 31 in three intersecting directions is realized, so that the conveying device 100 can not only perform long-distance conveying, but also convey the silicon wafers into each tray arranged in an array in the second direction and the third direction, having the advantage of flexible conveying.

[0081] In some alternative embodiments, the first direction, the second direction and the third direction may be perpendicular to each other. For example, the first direction and the third direction may be horizontal directions perpendicular to each other, and the second direction is the vertical direction.

[0082] In some specific embodiments of the present invention, the machine base 10 is provided with a guiding member 12 extending in the first direction. The lifting mechanism 30 is provided with a cooperating member 322 cooperating with the guiding member 12. The cooperating member 322 is movable along the guiding member 12, and the guiding member 12 can guide the lifting mechanism 30 to prevent the lifting mechanism 30 from deviating during movement.

[0083] Optionally, the guiding member 12 may be one or more. A single guiding member 12 is beneficial to reducing costs. Multiple guiding members 12 can be spaced apart in the third direction, which is beneficial to improving the stability of conveying. The number of the cooperating members 322 cooperating with each guiding member 12 may be one or more, which is not limited herein.

[0084] Optionally, the guiding member 12 may be a guide rail, and the cooperating member 322 may be a slider.

[0085] An embodiment of the present invention further provides a sorting machine, and the conveying device 100 includes the conveying device 100 according to any of the above embodiments. The sorting machine can sort and file the silicon wafers.

[0086] Since the conveying device 100 according to the embodiment of the present invention has the above technical effects, accordingly, the sorting machine according to the embodiment of the present invention also has corresponding technical effects, that is, it realizes the long-distance conveying of silicon wafers. Compared with the structure of gear-rack transmission in the traditional technology, it has the advantages of low implementation difficulty, low precision requirement, and low cost. In addition, compared with the traditional annular conveyor belt 20, in this embodiment, the conveyor belt 20 is arranged as a straight line extending in the first direction, which has the advantage of reducing its own height in the second direction, can leave more lifting space for the carrier 31 in the lifting mechanism 30, is convenient for the layout of the conveying device 100, and reduces the replacement frequency of the trays.

[0087] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A conveying device, characterized in that, Comprising: A machine base; A conveyor belt, which is arranged on the machine base and extends linearly along a first direction; A lifting mechanism, the lifting mechanism includes a carrier that can move along a second direction, the second direction intersects with the first direction, and the lifting mechanism cooperates with the conveyor belt to move relative to the conveyor belt in the first direction.

2. The conveying device according to claim 1, characterized in that, The lifting mechanism includes: A frame, on which the carrier that can move along the second direction is arranged; A driving wheel, which is rotatably arranged on the frame around its own axis; At least one tensioning wheel, which is rotatably arranged on the frame around its own axis, the tensioning wheel is spaced apart from the driving wheel, and the conveyor belt is wound between the driving wheel and the tensioning wheel.

3. The conveying device according to claim 2, wherein, The number of the tensioning wheels is two, the driving wheel and the two tensioning wheels are distributed in a triangle, and in the first direction, the driving wheel is located between the two tensioning wheels.

4. The conveying device according to claim 2 or 3, characterized in that, The conveyor belt is a synchronous belt, and the driving wheel is a synchronous pulley.

5. The conveying device according to claim 4, characterized in that, One side surface of the synchronous belt is provided with a plurality of first teeth arranged along the first direction, and the outer peripheral surface of the driving wheel is provided with a plurality of second teeth, and the first teeth are engaged with the second teeth.

6. The conveying device according to claim 5, characterized in that, The driving wheel is higher than the tensioning wheel, and the first teeth are arranged on the lower surface of the synchronous belt.

7. The conveying device according to claim 2, characterized in that, The width of the driving wheel in the first direction is greater than the width of the conveyor belt.

8. The conveying device according to claim 2, wherein At least one end of the tensioning wheel is provided with a baffle, and the baffle extends radially outward along the tensioning wheel to limit the conveyor belt in the width direction of the conveyor belt.

9. The conveying device according to claim 2, characterized in that, The lifting mechanism further includes: A driving member, which is arranged on the frame and connected to the driving wheel for driving the driving wheel to rotate.

10. The conveying device according to claim 2, characterized in that, The lifting mechanism further includes: A guide wheel, which is rotatably arranged on the frame around its own axis, the axis of the guide wheel extends along the second direction, and the guide wheel is in rolling connection with the conveyor belt.

11. The conveying device according to claim 2, characterized in that, The lifting mechanism further includes: A brush, which is arranged on the frame for cleaning the surface of the conveyor belt.

12. The conveying device according to claim 2, characterized in that, The lifting mechanism further includes: A lifting assembly, which is connected to the carrier for moving the carrier along the second direction; A conveying assembly, which is arranged on the frame, the conveying assembly is connected to the lifting assembly for conveying the lifting assembly along a third direction, and the third direction intersects with the first direction and the second direction respectively.

13. The conveying device according to claim 1, characterized in that The machine base is provided with a guiding member extending along the first direction, and the lifting mechanism is provided with a cooperating member cooperating with the guiding member, and the cooperating member can move along the guiding member.

14. A sorter, characterized in that, Comprising: The conveying device according to any one of claims 1-13.

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