Transport device and optical scanner

Abstract

The utility model belongs to the technical field of transmission devices, and particularly relates to a transmission device and an optical scanner, which comprise a first compression roller, a frame body, and a first transmission assembly, a transparent bearing assembly and a second transmission assembly which are sequentially arranged on the frame body along a first direction, the transparent bearing assembly is located in a gap between the first conveying assembly and the second conveying assembly; the first conveying assembly is used for conveying the materials to the second conveying assembly through the transparent bearing assembly, and the second conveying assembly is used for conveying the materials to the next station; at least one first pressing roller is arranged, and the transparent bearing assembly is provided with a transparent area; the first pressing rollers are slidably connected to the frame body in the second direction, at least one first pressing roller is located above the transparent area, and when materials pass through the transparent area, the first pressing rollers located above the transparent area and the transparent area clamp the materials. The material flattening device flattens materials during shooting, and the shooting effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission devices, and in particular relates to a transmission device and an optical scanner. Background Art

[0002] When optically inspecting a PCB, it is necessary to take a picture of the surface of the PCB and use software to compare the picture with the standard picture to determine whether the PCB has defects. In the process of forming etching lines on the PCB, the PCB needs to be heated and rinsed, which will cause the PCB to bend. In addition, a bent PCB will cause the picture to be blurred and deformed, thus affecting the comparison results.

[0003] In the art, roller conveyors are generally used to convey PCB boards, wherein the interval between two rollers is increased, and the interval is a viewfinder, and a camera assembly is set directly below the viewfinder. In order to solve the bending phenomenon of PCB boards, many manufacturers currently usually set a pressure roller above the roller conveyor, and the pressure roller is directly opposite to a roller in the roller conveyor to flatten the PCB board in advance. However, when the PCB board is made of soft and thin material, the part of the PCB board located above the viewfinder is still slightly deformed, which will affect the effect of the captured picture. Utility Model Content

[0004] The technical problem to be solved by the utility model is: when the PCB board is made of soft and thin material, a part of the PCB board located above the viewfinder is still slightly deformed, which will affect the effect of the photographed picture. A transmission device and an optical scanner are provided.

[0005] To solve the above technical problems, on the one hand, an embodiment of the utility model provides a conveying device, including a first pressure roller, a frame, and a first conveying component, a transparent carrying component and a second conveying component sequentially installed on the frame along a first direction, wherein the transparent carrying component is located in the interval between the first conveying component and the second conveying component; the first conveying component is used to convey the material to the second conveying component via the transparent carrying component, and the second conveying component is used to convey the material to the next workstation; at least one first pressure roller is provided, and the transparent carrying component has a transparent area; the first pressure roller is slidably connected to the frame along the second direction, and at least one first pressure roller is located on one side of the transparent area along the second direction, and when the material passes through the transparent area, the first pressure roller located on one side of the transparent area clamps the material with the transparent area; the first direction and the second direction are not parallel and not colinear.

[0006] Optionally, a plurality of the first pressing rollers are provided, and the plurality of the first pressing rollers all extend along the third direction, and the plurality of the first pressing rollers are arranged at intervals along the first direction, and the first direction, the second direction and the third direction are not parallel to each other and are not collinear.

[0007] Optionally, a first groove group is provided on the frame, and the first groove group includes a first groove and a second groove which are arranged opposite to each other along the third direction and extend along the second direction;

[0008] One end of the first pressing roller is slidably disposed in the first groove, and the other end of the first pressing roller is slidably disposed in the second groove.

[0009] Optionally, the second direction is a vertical direction, a portion of the first pressing rollers are arranged above the transparent area, and the rest of the first pressing rollers are arranged above the first conveying assembly;

[0010] Or,

[0011] A portion of the first pressing rollers are disposed above the transparent area, and the remaining first pressing rollers are disposed above the non-transparent area of ​​the transparent carrying component;

[0012] Alternatively, a portion of the first pressure rollers are disposed above the transparent area, a portion of the first pressure rollers are disposed above the non-transparent area of ​​the transparent supporting component, and the remaining first pressure rollers are disposed above the first conveying component.

[0013] Optionally, the conveying device further comprises a second pressing roller extending along the third direction, the second pressing roller being slidably connected to the frame along the second direction and being located above the first conveying assembly, and the second pressing roller being located on a side of the first pressing roller close to the first conveying assembly;

[0014] When the material passes through the first conveying assembly, the second pressing roller and the first conveying assembly clamp the material.

[0015] Optionally, a second groove group is provided on the frame, and the second groove group includes a third groove and a fourth groove which are arranged opposite to each other along the third direction and extend along the second direction;

[0016] One end of the second pressing roller is slidably disposed in the third groove, and the other end of the second pressing roller is slidably disposed in the fourth groove.

[0017] Optionally, the conveying device further comprises a third pressing roller extending along the third direction, the third pressing roller is slidably connected to the frame along the second direction and is located above the second conveying assembly, and the third pressing roller is located on a side of the first pressing roller close to the second conveying assembly;

[0018] When the material passes through the second conveying assembly, the third pressing roller and the second conveying assembly clamp the material.

[0019] Optionally, a third groove group is provided on the frame, and the third groove group includes a fifth groove and a sixth groove which are arranged opposite to each other along the third direction and extend along the second direction;

[0020] One end of the third pressing roller is slidably disposed in the fifth groove, and the other end of the third pressing roller is slidably disposed in the sixth groove.

[0021] Optionally, the first pressing roller includes a first pressing roller body and two first bearings, wherein one of the first bearings is installed in the first groove, and the other first bearing is installed in the second groove, and two ends of the first pressing roller body are respectively connected to the two first bearings;

[0022] The second pressing roller comprises a second pressing roller body and two second bearings, wherein one of the second bearings is installed in the third groove, and the other second bearing is installed in the fourth groove, and two ends of the second pressing roller body are respectively connected to the two second bearings;

[0023] The third pressure roller includes a third pressure roller body and two third bearings, wherein one of the third bearings is installed in the fifth groove, and the other third bearing is installed in the sixth groove, and the two ends of the third pressure roller body are respectively connected to the two third bearings.

[0024] Optionally, the first groove, the second groove, the third groove, the fourth groove, the fifth groove, and the sixth groove are all U-shaped grooves, and the openings of the first groove, the second groove, the third groove, the fourth groove, the fifth groove, and the sixth groove are all arranged to face away from the frame.

[0025] Optionally, the diameter of the first pressing roller is 5 mm to 10 mm, the diameter of the second pressing roller is 15 mm to 30 mm, and the diameter of the third pressing roller is 15 mm to 30 mm.

[0026] Optionally, a plurality of the first pressing rollers are arranged in parallel, a plurality of the second pressing rollers are arranged in parallel, and a plurality of the third pressing rollers are arranged in parallel;

[0027] The interval between two adjacent first pressing rollers is 26.5 mm to 31.5 mm, the interval between two adjacent second pressing rollers is 43 mm to 63 mm, and the interval between two adjacent third pressing rollers is 43 mm to 63 mm.

[0028] Optionally, the transparent supporting assembly includes a mounting seat and a transparent member, the mounting seat is connected to the frame, the mounting seat is provided with a mounting groove which passes through along the second direction, and the mounting groove extends along the third direction, and the transparent member is arranged in the mounting groove.

[0029] Optionally, the mounting seat includes a first mounting seat and a second mounting seat spaced apart along the first direction, the mounting groove includes a first mounting groove provided on the first mounting seat and a second mounting groove provided on the second mounting seat, the first mounting groove has a first plane and a first side surface, the first side surface is adjacent to the first plane, the second mounting groove has a second plane and a second side surface, the second side surface is adjacent to the second plane, and the first side surface and the second side surface are arranged facing each other;

[0030] The two opposite sides of the transparent member along the first direction are located between the first side surface and the second side surface, and the two opposite ends of the bottom surface of the transparent member are overlapped on the first plane and the second plane respectively.

[0031] Optionally, the first direction, the second direction and the third direction are perpendicular to each other.

[0032] On the other hand, an embodiment of the present utility model further provides an optical scanner, comprising a camera assembly and the above-mentioned conveying device;

[0033] The camera assembly is arranged below the transparent area and is used for photographing the material passing through the transparent area.

[0034] Implementing the embodiments of the utility model has the following beneficial effects:

[0035] According to the conveying device and optical scanner of the embodiments of the utility model, when the material is transported to the vicinity of the first pressure roller and begins to contact the first pressure roller, the first pressure roller is lifted up by the material. At this time, the first pressure roller moves upward so that the material can enter the gap between the transparent supporting component and the first pressure roller. However, after the material enters between the transparent supporting component and the first pressure roller, the first pressure roller presses the material downward under the action of its own gravity, flattens the material being photographed, and thus improves the shooting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the structure of a conveying device provided in an embodiment of the utility model;

[0037] Figure 2 A schematic diagram of the structure of the conveying device provided by an embodiment of the utility model after the frame is removed;

[0038] Figure 3 A schematic side view of a conveying device provided in an embodiment of the utility model;

[0039] Figure 4 A schematic diagram of the position of a transparent bearing assembly provided in an embodiment of the utility model;

[0040] Figure 5 A schematic diagram of the structure of a transparent bearing assembly provided in an embodiment of the utility model;

[0041] Figure 6 A partially enlarged schematic diagram of a transparent bearing assembly of a conveying device provided in an embodiment of the utility model;

[0042] Figure 7 A schematic diagram of the structure of a first pressing roller and a second pressing roller of a conveying device provided in an embodiment of the utility model;

[0043] Figure 8 yes Figure 7 A magnified schematic diagram of part A;

[0044] Fig. 9 A schematic structural diagram of a transparent bearing assembly of a conveying device provided in an embodiment of the utility model.

[0045] The figures in the specification are marked as follows: 1. frame; 11. frame; 12. rotating seat; 13. first groove; 14. second groove; 15. third groove; 16. fourth groove; 17. fifth groove; 18. sixth groove; 2. first transmission component; 3. second transmission component; 4. transparent bearing component; 40. mounting seat; 401. upper groove; 402. lower groove; 41. first mounting seat; 42. second mounting seat; 43. transparent member; 44. first mounting groove; 45. second mounting groove; 46. first plane; 47. second plane; 48. first side; 49. second side; 5. first pressure roller; 51. first pressure roller body; 52. first bearing; 6. second pressure roller; 61. second pressure roller body; 62. second bearing; 7. third pressure roller; 71. third pressure roller body; 72. third bearing; 8. camera assembly. DETAILED DESCRIPTION

[0046] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0047] like Figures 1 to 4As shown, an embodiment of the utility model provides an optical scanner, including a conveying device and a camera assembly 8, wherein the camera assembly 8 is arranged below the transparent area and is used to photograph the material passing through the transparent area. The conveying device includes a first pressure roller 5, a frame 1, and a first conveying assembly 2, a transparent bearing assembly 4, and a second conveying assembly 3 sequentially installed on the frame 1 along a first direction, wherein the transparent bearing assembly 4 is located in the interval between the first conveying assembly 2 and the second conveying assembly 3; the first conveying assembly 2 is used to convey the material to the second conveying assembly 3 via the transparent bearing assembly 4, and the second conveying assembly 3 is used to convey the material to the next station. At least one first pressure roller 5 is provided, and the transparent bearing assembly 4 has a transparent area. In this embodiment, the first direction, the second direction, and the third direction are perpendicular to each other, the first direction is the length direction of the frame 1, that is, the conveying direction of the material; the third direction is the width direction of the frame 1; and the second direction is the height direction of the frame 1, that is, the up and down direction. The camera assembly 8 is arranged below the transparent area.

[0048] In other embodiments, the first direction, the second direction, and the third direction may be non-parallel and non-collinear in pairs.

[0049] In this embodiment, when the material is delivered to the top of the transparent supporting component 4, especially when it is delivered to the transparent area, the camera component 8 preset below the transparent supporting component 4 can shoot the transparent area of ​​the transparent supporting component 4, and send the photographed lower surface of the material to the system. The system compares it with the standard picture to analyze whether there are defects on the lower surface of the material.

[0050] Reference Figure 2 and Figure 3 , this embodiment is different from the prior art, the first pressing roller 5 is connected to the frame 1 in a sliding manner along the second direction, specifically, at least one first pressing roller 5 is located on one side of the transparent area along the second direction, and when the material passes through the transparent area, the first pressing roller 5 located on one side of the transparent area clamps the material with the transparent area. After the material is transferred to the transparent area, the first pressing roller 5 located above the transparent area clamps the material with the transparent area, that is, when the material enters the gap between the first pressing roller 5 and the transparent bearing component 4, the material touches and lifts the first pressing roller 5, so that the first pressing roller 5 moves upward first, and then the first pressing roller 5 presses the material downward under its own weight, so that the material is close to the transparent area, reducing the deformation of the material, thereby improving the shooting effect.

[0051] Of course, in other embodiments, the first pressing roller 5 can be moved up and pressed down by means of a reciprocating device such as a cylinder.

[0052] In this embodiment, a plurality of first pressing rollers 5 are provided, and the plurality of first pressing rollers 5 extend along the third direction, and the plurality of first pressing rollers 5 are arranged at intervals along the first direction. Each first pressing roller 5 extends along the third direction, and the plurality of first pressing rollers 5 are parallel to each other.

[0053] According to the number of the first pressing rollers 5, the following settings can be made: a part of the first pressing rollers 5 are arranged above the transparent area, and the rest of the first pressing rollers 5 are arranged above the first conveying assembly 2. Alternatively, a part of the first pressing rollers 5 are arranged above the transparent area, and the rest of the first pressing rollers 5 are arranged above the non-transparent area of ​​the transparent carrying assembly 4; or, a part of the first pressing rollers 5 are arranged above the transparent area, a part of the first pressing rollers 5 are arranged above the non-transparent area of ​​the transparent carrying assembly 4, and the rest of the first pressing rollers 5 are arranged above the first conveying assembly 2.

[0054] Optimally, at least two first pressing rollers 5 are arranged above the transparent area of ​​the transparent bearing component 4, and the two first pressing rollers 5 are arranged at both ends of the first direction of the transparent bearing component 4, so that the two first pressing rollers 5 can press both sides of the material at the same time. Of course, more than two first pressing rollers 5 have a better effect. A portion of the first pressing rollers 5 are arranged above the non-transparent area of ​​the transparent bearing component 4 and before the transparent area, so as to flatten the material in advance before it is conveyed to the transparent area. In this embodiment, a portion of the first pressing rollers 5 are arranged above the first conveying component 2, mainly because the first pressing rollers 5 of this portion can flatten the material in advance, and then be flattened by the first pressing rollers 5 above the non-transparent area of ​​the transparent bearing component 4, and finally by the first pressing rollers 5 above the transparent area, so that when the material is conveyed from the first conveying component 2 to the transparent bearing component 4, the conveying process is smoother, so that there is no need to lift the first pressing rollers 5 above the transparent bearing component 4 too much.

[0055] In this embodiment, a first groove group is provided on the frame 1, and the first groove group includes a first groove 13 and a second groove 14 which are arranged opposite to each other along the third direction and extend along the second direction. One end of the first pressing roller 5 is slidably disposed in the first groove 13, and the other end of the first pressing roller 5 is slidably disposed in the second groove 14, and the first pressing roller 5 can slide up and down and rotate around its own axis.

[0056] The working process of the first pressing roller 5 of this embodiment is as follows: when the material is transported to the vicinity of the first pressing roller 5 and begins to contact the first pressing roller 5, the first pressing roller 5 is pushed up by the material. At this time, the first pressing roller 5 moves upward in the first groove 13 and the second groove 14 so that the material enters the gap between the transparent bearing component 4 and the first pressing roller 5. However, after the material enters between the transparent bearing component 4 and the first pressing roller 5, the first pressing roller 5 presses the material downward under the action of its own gravity, and the material continues to be conveyed under the continuous drive of the first conveying component 2. At the same time, the first pressing roller 5 presses the material while rotating itself to convey the material. In the process of the camera component 8 shooting the material above it, the transparent bearing component 4 and the first pressing roller 5 press the lower surface of the material throughout the process, so that the material is close to the transparent area of ​​the transparent bearing component 4, so as to flatten the material and improve the shooting effect.

[0057] Reference Figure 7 and Figure 8 More specifically, the first roller 5 in this embodiment includes a first roller body 51 and two first bearings 52, wherein one of the first bearings 52 is installed in the first groove 13, and the other first bearing 52 is installed in the second groove 14, and the two ends of the first roller body 51 are respectively connected to the two first bearings 52. The first roller body 51 is rotated by the first bearings 52, and the first roller body 51 rotates more smoothly due to the presence of the first bearings 52.

[0058] In addition, the conveying device also includes a second pressure roller 6 extending along a third direction. The second pressure roller 6 is slidably connected to the frame 1 along the second direction and is located above the first conveying component 2. The second pressure roller 6 is located on the side of the first pressure roller 5 close to the first conveying component 2; when the material passes through the first conveying component 2, the second pressure roller 6 and the first conveying component 2 clamp the material.

[0059] The frame 1 is provided with a second groove group, which includes a third groove 15 and a fourth groove 16 which are arranged opposite to each other along the third direction and extend along the second direction; one end of the second pressing roller 6 is slidably arranged in the third groove 15, and the other end of the second pressing roller 6 is slidably arranged in the fourth groove 16. The sliding method of the first pressing roller 5 is similar and will not be described in detail.

[0060] The second pressing roller 6 and the first conveying assembly 2 flatten the material in advance, so that the flattening time of the material in the first conveying assembly 2 is further extended, thereby ensuring the flattening effect.

[0061] Reference Figure 7 and Figure 8The second roller 6 includes a second roller body 61 and two second bearings 62, one of the second bearings 62 is installed in the third groove 15, and the other second bearing 62 is installed in the fourth groove 16. The two ends of the second roller body 61 are respectively connected to the two second bearings 62. The rotation method of the first roller 5 is similar and will not be described in detail.

[0062] In this embodiment, the conveying device further includes a third pressing roller 7 extending along the third direction, the third pressing roller 7 is slidably connected to the frame 1 along the second direction and is located above the second conveying assembly 3, and the third pressing roller 7 is located on the side of the first pressing roller 5 close to the second conveying assembly 3; when the material passes through the second conveying assembly 3, the third pressing roller 7 and the second conveying assembly 3 clamp the material. A third groove group is provided on the frame 1, and the third groove group includes a fifth groove 17 and a sixth groove 18 which are arranged opposite to each other along the third direction and extend along the second direction; one end of the third pressing roller 7 is slidably provided in the fifth groove 17, and the other end of the third pressing roller 7 is slidably provided in the sixth groove 18. The sliding mode of the first pressing roller 5 is similar and will not be described in detail.

[0063] After the camera assembly 8 takes the picture and before the material enters the next station, the third pressing roller 7 continues to flatten the material on the second conveying assembly 3 to ensure that the material is always in a flat state.

[0064] Reference Figure 7 and Figure 8 The third pressure roller 7 includes a third pressure roller body 71 and two third bearings 72, wherein one third bearing 72 is installed in the fifth groove 17, and the other third bearing 72 is installed in the sixth groove 18, and the two ends of the third pressure roller body 71 are respectively connected to the two third bearings 72.

[0065] In this embodiment, the first groove 13, the second groove 14, the third groove 15, the fourth groove 16, the fifth groove 17, and the sixth groove 18 are all U-shaped grooves, and the openings of the first groove 13, the second groove 14, the third groove 15, the fourth groove 16, the fifth groove 17, and the sixth groove 18 are all arranged along the second direction away from the frame 1.

[0066] In this embodiment, the diameter of the first pressing roller 5 is smaller than the diameter of the second pressing roller 6 and the diameter of the third pressing roller 7. No matter the first pressing roller 5, the second pressing roller 6 or the third pressing roller 7, they all flatten the same material, so the flattening space of the three is the same in the vertical direction; that is, in the vertical direction, the lowest end of the first groove 13, the lowest end of the second groove 14 and the lowest end of the third groove 15 are coplanar, so that the first pressing roller 5, the second pressing roller 6 and the third pressing roller 7 can all flatten the upper surface of the material.

[0067] Specifically, the diameter of the first pressing roller 5 is 5mm to 10mm, wherein the diameter of the first pressing roller 5 can be 5mm, 6mm, 7mm, 8mm, 9mm or 10mm; the diameter of the second pressing roller 6 is 15mm to 30mm, wherein the diameter of the second pressing roller 6 can be 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm or 30mm; the diameter of the third pressing roller 7 is 15mm to 30mm, wherein the diameter of the third pressing roller 7 can be 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm or 30mm.

[0068] Moreover, in this embodiment, a plurality of first pressing rollers 5 are arranged in parallel, a plurality of second pressing rollers 6 are arranged in parallel, and a plurality of third pressing rollers 7 are arranged in parallel. The interval between two adjacent first pressing rollers 5 is smaller than the interval between two adjacent second pressing rollers 6, and the interval between two adjacent first pressing rollers 5 is smaller than the interval between two adjacent third pressing rollers 7. In this embodiment, the first pressing rollers 5 have a small diameter and are arranged more densely than the second pressing rollers 6 and the third pressing rollers 7. The dense arrangement of the first pressing rollers 5 enhances the flattening effect, thereby improving the clear shooting effect.

[0069] Specifically, the interval between two adjacent first pressing rollers 5 is 26.5 mm to 31.5 mm, wherein the interval between two adjacent first pressing rollers 5 may be 26.5 mm, 27 mm, 27.5 mm, 28 mm, 28.5 mm, 29 mm, 29.5 mm, 30 mm, 30.5 mm, 31 mm or 31.5 mm. The interval between two adjacent second pressing rollers 6 is 43 mm to 63 mm, wherein the interval between two adjacent second pressing rollers 6 may be 43 mm, 44 mm, 45 mm, 46 mm, 47 mm, 48 mm, 49 mm, 50 mm, 51 mm, 51 mm, 52 mm, 53 mm, 54 mm, 55 mm, 56 mm, 57 mm, 58 mm, 59 mm, 60 mm, 61 mm, 62 mm or 63 mm. The interval between two adjacent third rollers 7 is 43mm to 63mm, wherein the interval between two adjacent third rollers 7 can be 43mm, 44mm, 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 51mm, 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm or 63mm. In the present embodiment, the first transmission assembly 2 is one of a chain conveyor, a belt conveyor and a roller conveyor. The second transmission assembly 3 is one of a chain conveyor, a belt conveyor and a roller conveyor. However, when the first transmission assembly 2 or the second transmission assembly 3 is a roller conveyor, at this time, the first roller 5, the second roller 6 or the third roller 7 is arranged directly above a single roller of the roller conveyor. The single roller of the roller conveyor and the corresponding first pressure roller 5, second pressure roller 6 or third pressure roller 7 above it form a gap for sandwiching materials. When the material passes between the single roller of the roller conveyor and the corresponding first pressure roller 5, second pressure roller 6 or third pressure roller 7, the single roller of the roller conveyor and the corresponding first pressure roller 5, second pressure roller 6 or third pressure roller 7 achieve the effect of sandwiching and squeezing materials.

[0070] Reference Figure 1 , Figure 4 and Figure 5 In this embodiment, the transparent supporting assembly 4 includes a mounting seat 40 and a transparent member 43. The mounting seat 40 is connected to the frame 1. The mounting seat 40 is provided with a mounting groove that passes through along the second direction, and the mounting groove extends along the third direction. The transparent member 43 is arranged in the mounting groove.

[0071] Specifically, the mounting seat 40 includes a first mounting seat 41 and a second mounting seat 42 arranged at intervals along the conveying direction, the mounting groove includes a first mounting groove 44 arranged on the first mounting seat 41 and a second mounting groove 45 arranged on the second mounting seat 42, the first mounting groove 44 has a first plane 46 and a first side surface 48, the first plane 46 and the first side surface 48 are adjacent and perpendicular, the second mounting groove 45 has a second plane 47 and a second side surface 49, the second plane 47 and the second side surface 49 are adjacent, and the first side surface 48 and the second side surface 49 are arranged facing each other. The two opposite sides of the transparent member 43 along the first direction are located between the first side surface 48 and the second side surface 49, and the opposite ends of the bottom surface of the transparent member 43 are overlapped on the first plane 46 and the second plane 47 respectively, and the first plane 46 and the second plane 47 are coplanar.

[0072] The transparent member 43 in this embodiment is plate-shaped, and two opposite side walls of the transparent member 43 in the conveying direction abut against the first side surface 48 and the second side surface 49 respectively, and the bottom surface of the transparent member 43 abuts against the first plane 46 and the second plane 47 at the same time.

[0073] Reference Figure 2 and Figure 7 In this embodiment, the frame 1 includes a frame 11 and a plurality of rotating seats 12, and the first conveying component 2, the second conveying component 3, the first mounting seat 41 and the second mounting seat 42 are all mounted on the frame 11. The rotating seat 12 is provided with one of the first groove 13, the second groove 14, the third groove 15, the fourth groove 16, the fifth groove 17 and the sixth groove 18. The rotating seat 12 provided with the first groove 13 is installed at one end of one of the first pressure rollers 5, and the rotating seat 12 provided with the second groove 14 is installed at the other end of the first pressure roller 5. The rotating seat 12 provided with the first groove 13 and the rotating seat 12 provided with the second groove 14 are used in pairs so that the first pressure roller 5 can move up and down and rotate around its central axis. Similarly, the rotating seat 12 provided with the third groove 15 and the rotating seat 12 provided with the fourth groove 16 are used in pairs to allow the second pressure roller 6 to slide. The rotating seat 12 provided with the fifth groove 17 and the rotating seat 12 provided with the sixth groove 18 are used in pairs to allow the third pressure roller 7 to slide. Refer to Fig. 9 In other embodiments, the mounting seat 40 in this embodiment is a single complete whole, and is not formed by the first mounting seat 41 and the second mounting seat 42 as mentioned above. For example, the mounting seat 40 in this embodiment is block-shaped, and the mounting groove is a stepped groove. In other words, the mounting seat 40 includes an upper groove 401 and a lower groove 402. The lower groove 402 is arranged below the upper groove 401 and is connected. The cross section of the upper groove 401 is larger than the cross section of the lower groove 402, so that the junction of the upper groove 401 and the lower groove 402 forms a lap joint surface, that is, the upper groove 401 has a bottom wall. The bottom surface of the transparent member 43 overlaps the lap joint surface (the bottom wall of the upper groove 401).

[0074] In this embodiment, multiple camera assemblies 8 can be provided, and the camera assemblies 8 are installed in the housing, and the inner wall of the housing constitutes the frame 1 of the conveying device. Among them, at least one camera assembly 8 must be arranged below the transparent member 43, and other camera assemblies 8 can also be arranged directly above the transparent bearing assembly 4, and other camera assemblies 8 are also located above the first pressing roller 5. The camera assembly 8 arranged below the transparent member 43 takes pictures of the lower surface of the material, and the camera assembly 8 arranged above the transparent bearing assembly 4 and the first pressing roller 5 takes pictures of the upper surface of the material.

[0075] The camera assembly 8 in this embodiment is a CCD camera.

[0076] In other embodiments, the conveying device is placed in the shell, and the frame is also only placed in the shell but not connected to the shell.

[0077] In other embodiments, the frame of the conveying device is fixed to the shell by welding, bolts, etc.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveying device, characterized in that: It comprises a first pressing roller, a frame, and a first conveying assembly, a transparent bearing assembly, and a second conveying assembly which are sequentially installed on the frame along a first direction, wherein the transparent bearing assembly is located in the interval between the first conveying assembly and the second conveying assembly; The first conveying component is used to convey the material to the second conveying component via the transparent carrying component, and the second conveying component is used to convey the material to the next workstation; The first pressing roller is provided with at least one, and the transparent bearing assembly has a transparent area; The first pressing roller is slidably connected to the frame along the second direction, and at least one of the first pressing rollers is located on one side of the transparent area along the second direction. When the material passes through the transparent area, the first pressing roller located on one side of the transparent area clamps the material with the transparent area; The first direction and the second direction are non-parallel and non-collinear.

2. The conveying device according to claim 1, characterized in that A plurality of the first pressing rollers are provided, and the plurality of the first pressing rollers all extend along the third direction. The plurality of the first pressing rollers are arranged at intervals along the first direction, and the first direction, the second direction and the third direction are not parallel to each other and are not collinear.

3. The conveying device according to claim 2, characterized in that The frame is provided with a first groove group, the first groove group includes a first groove and a second groove which are arranged opposite to each other along the third direction and extend along the second direction; One end of the first pressing roller is slidably disposed in the first groove, and the other end of the first pressing roller is slidably disposed in the second groove.

4. The conveying device according to claim 2, characterized in that The second direction is a vertical direction, a portion of the first pressing rollers are arranged above the transparent area, and the rest of the first pressing rollers are arranged above the first conveying assembly; Or, A portion of the first pressing rollers are disposed above the transparent area, and the remaining first pressing rollers are disposed above the non-transparent area of ​​the transparent carrying component; Alternatively, a portion of the first pressing rollers are disposed above the transparent area, a portion of the first pressing rollers are disposed above the non-transparent area of ​​the transparent supporting component, and the remaining first pressing rollers are disposed above the first conveying component.

5. The conveying device according to claim 3, characterized in that The conveying device further comprises a second pressing roller extending along the third direction, the second pressing roller being slidably connected to the frame along the second direction and being located above the first conveying assembly, and the second pressing roller being located on a side of the first pressing roller close to the first conveying assembly; When the material passes through the first conveying assembly, the second pressing roller and the first conveying assembly clamp the material.

6. The conveying device according to claim 5, characterized in that The frame is provided with a second groove group, the second groove group includes a third groove and a fourth groove which are arranged opposite to each other along the third direction and extend along the second direction; One end of the second pressing roller is slidably disposed in the third groove, and the other end of the second pressing roller is slidably disposed in the fourth groove.

7. The conveying device according to claim 6, characterized in that The conveying device further comprises a third pressing roller extending along the third direction, the third pressing roller being slidably connected to the frame along the second direction and being located above the second conveying assembly, and the third pressing roller being located on a side of the first pressing roller close to the second conveying assembly; When the material passes through the second conveying assembly, the third pressing roller and the second conveying assembly clamp the material.

8. The conveying device according to claim 7, characterized in that The frame is provided with a third groove group, the third groove group includes a fifth groove and a sixth groove which are arranged opposite to each other along the third direction and extend along the second direction; One end of the third pressing roller is slidably disposed in the fifth groove, and the other end of the third pressing roller is slidably disposed in the sixth groove.

9. The conveying device according to claim 8, characterized in that The first pressing roller comprises a first pressing roller body and two first bearings, wherein one of the first bearings is installed in the first groove, and the other first bearing is installed in the second groove, and two ends of the first pressing roller body are respectively connected to the two first bearings; The second pressing roller comprises a second pressing roller body and two second bearings, wherein one of the second bearings is installed in the third groove, and the other second bearing is installed in the fourth groove, and two ends of the second pressing roller body are respectively connected to the two second bearings; The third pressure roller includes a third pressure roller body and two third bearings, wherein one of the third bearings is installed in the fifth groove, and the other third bearing is installed in the sixth groove, and the two ends of the third pressure roller body are respectively connected to the two third bearings.

10. The conveying device according to claim 9, characterized in that The first groove, the second groove, the third groove, the fourth groove, the fifth groove and the sixth groove are all U-shaped grooves, and the openings of the first groove, the second groove, the third groove, the fourth groove, the fifth groove and the sixth groove are all arranged away from the frame.

11. The conveying device according to claim 9, characterized in that The diameter of the first pressing roller is 5 mm to 10 mm, the diameter of the second pressing roller is 15 mm to 30 mm, and the diameter of the third pressing roller is 15 mm to 30 mm.

12. The conveying device according to claim 9, characterized in that There are a plurality of first pressing rollers arranged in parallel, a plurality of second pressing rollers arranged in parallel, and a plurality of third pressing rollers arranged in parallel; The interval between two adjacent first pressing rollers is 26.5 mm to 31.5 mm, the interval between two adjacent second pressing rollers is 43 mm to 63 mm, and the interval between two adjacent third pressing rollers is 43 mm to 63 mm.

13. The conveying device according to claim 2, characterized in that The transparent bearing assembly includes a mounting seat and a transparent member, the mounting seat is connected to the frame, a mounting groove penetrating along the second direction is provided on the mounting seat, and the mounting groove extends along the third direction, and the transparent member is arranged in the mounting groove.

14. The conveying device according to claim 13, characterized in that The mounting seat comprises a first mounting seat and a second mounting seat spaced apart along the first direction, the mounting groove comprises a first mounting groove arranged on the first mounting seat and a second mounting groove arranged on the second mounting seat, the first mounting groove has a first plane and a first side surface, the first side surface is adjacent to the first plane, the second mounting groove has a second plane and a second side surface, the second side surface is adjacent to the second plane, and the first side surface and the second side surface are arranged facing each other; The two opposite sides of the transparent member along the first direction are located between the first side surface and the second side surface, and the two opposite ends of the bottom surface of the transparent member are overlapped on the first plane and the second plane respectively.

15. The conveying device according to claim 2, characterized in that The first direction, the second direction and the third direction are perpendicular to each other.

16. An optical scanner, characterized in that: A camera assembly and a transmission device as claimed in any one of claims 1 to 15; The camera assembly is disposed below the transparent area and is used for photographing the material passing through the transparent area.

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