ID card page turning scanning device and ID card automatic scanning method

Abstract

The present application discloses a document page turning scanning device, which comprises a bottom plate for placing a document to be turned, a frame cover rotatably arranged on the bottom plate at one end, a shooting device for scanning and shooting located on the frame cover, and a page turning assembly, a first driving device, a multi-stage gear set, at least one brush, a page suction assembly and a page pressing rod all arranged on the frame cover. The present application also provides a document automatic scanning method based on the document page turning scanning device, and the document page turning scanning device can realize automatic page turning scanning operation to reduce the burden of manual work.

Description

Technical Field

[0001] The present application relates to the technical field of automatic document scanning, and more specifically, to a document page turning scanning device and an automatic document scanning method. Background Art

[0002] In security check and other customs clearance places, it is necessary to check the documents, which involves document scanning, document stamping or labeling. If the documents are turned manually and then scanned by a manual handheld scanning device, when faced with a large number of pages of paper verification and scanning, the non-automatic manual page turning and scanning increases the burden on the staff and is not conducive to the automated management of document inspection. Summary of the invention

[0003] In view of the prior art, the technical problem solved by the present application is to provide a document page turning scanning device and a document automatic scanning method that can realize automatic page turning scanning operation to reduce the burden of manual work.

[0004] In order to solve the above technical problems, in a first aspect, the present application provides a document page turning scanning device, comprising:

[0005] A bottom plate, on which the documents to be turned are placed;

[0006] A frame cover with one end rotatably disposed on the bottom plate;

[0007] a photographing device for scanning and photographing located on the frame cover, and,

[0008] A page turning assembly, a first driving device, a multi-stage gear set, at least one brush, a page suction assembly and a page pressing rod, all of which are arranged on the frame cover;

[0009] The multi-stage gear set includes a primary gear set driven by the first driving device, a secondary gear set connected to the page turning assembly, and a tertiary gear set and a quaternary gear set both driven by the primary gear set; the secondary gear set, the tertiary gear set and the quaternary gear set are respectively driven and connected to the brush, the page suction assembly and the page pressing rod; the rotating tertiary gear set is used to drive the page suction assembly to move up and down relative to the bottom plate to suck the paper on the side to be turned;

[0010] The page turning assembly includes a page turning synchronous belt, a plurality of tensioning wheels drivingly connected to the page turning synchronous belt, a second driving device driving one of the tensioning wheels to rotate, and a cantilever arranged on the page turning synchronous belt; the tensioning wheel is drivingly connected to the secondary gear set, the secondary gear set driven by the tensioning wheel is used to drive the brush to rotate in the opposite direction to the direction in which the page suction assembly sucks up the paper, the circulating page turning synchronous belt is used to drive the cantilever to turn over the sucked paper, and the rotating four-stage gear set is used to drive the page pressing rod to rotate to press the paper after turning the page.

[0011] In one application embodiment, the three-stage gear set includes at least one page suction gear, on which a pin is fixed; the page suction assembly structure includes a sliding plate whose two ends can slide along the frame cover and is located on one side of the bottom plate for placing documents, a through hole opened in the middle of the sliding plate, and at least one suction cup for sucking pages is arranged on the sliding plate; one end of the pin is confined in the through hole, and the pin drives the sliding plate on the frame cover and moves up and down relative to the bottom plate when the page suction gear rotates.

[0012] In one embodiment of the application, the page suction assembly also includes a first photoelectric switch arranged on the frame cover and a first photoelectric baffle fixedly arranged on the sliding plate. When the sliding plate is located at a page suction starting position at a first preset height, the first photoelectric baffle is used to block the light beam emitted by the first photoelectric switch.

[0013] In one application embodiment, accommodating holes are provided on both sides of the frame cover that are relatively arranged, and a first connecting shaft is fixedly arranged in each of the accommodating holes. The two ends of the sliding plate are respectively slidably mounted on the two first connecting shafts, and when the frame cover is rotatably covered on the bottom plate, the first connecting shaft is perpendicular to the bottom plate; two rotatable second connecting shafts are also provided on the frame cover, and each of the second connecting shafts extends from the side to be turned over to the side after turning the page and is arranged on the same side of the frame cover perpendicularly to the first connecting shaft, and one end of each of the second connecting shafts is sleeved with a page pressing gear meshing with the four-stage gear set, and the other end is fixedly provided with the page pressing rod.

[0014] In one application embodiment, the two page-turning synchronous belts are relatively arranged on both sides of the frame cover and are located on both sides of the document on the bottom plate; the second driving device includes a page-turning motor arranged on the frame cover, a driving wheel driven by the page-turning motor, a page-turning shaft provided with a driven wheel and two tensioning wheels, and a transmission belt connecting the driving wheel and the driven wheel, and the two tensioning wheels provided on the page-turning shaft are respectively connected to one of the page-turning synchronous belts.

[0015] In one application embodiment, the frame cover is also provided with a third connecting shaft and two fourth connecting shafts arranged side by side, the third connecting shaft sleeve is provided with the brush, is arranged on the side of the document to be turned over and is located between the two page-turning synchronous belts, and one end of each of the fourth connecting shafts is provided with a tensioning wheel connected to a page-turning synchronous belt transmission; the secondary gear set includes two meshing gears, and the other end of each of the fourth connecting shafts is provided with one of the gears of the secondary gear set, and the other gear of the secondary gear set is provided on the third connecting shaft.

[0016] In one embodiment of the application, each of the page-turning synchronous belts is maintained into a right-angled trapezoidal structure by four tensioning wheels; the two tensioning wheels connected to the lower bottom edge of the page-turning synchronous belt are respectively located on the side to be turned and the side after turning the page, and the other two tensioning wheels connected to the upper bottom edge of the page-turning synchronous belt are respectively located on the side to be turned and the side after turning the page, the right-angled side of the right-angled trapezoidal structure is located on the side to be turned, the length of the lower bottom edge is greater than that of the upper bottom edge, and the lower bottom edge is closer to the bottom plate than the upper bottom edge; three cantilevers are fixedly arranged on the page-turning synchronous belt, and the three cantilevers The page synchronous belt is evenly divided; in the page turning process of one rotation of the page turning synchronous belt, at the beginning and the end of page turning, one of the cantilevers is located at the upper bottom edge and the vertical line from one of the cantilevers to the lower bottom edge is located on the boundary between the side to be turned and the side after turning the page, and the other two cantilevers are located on the lower bottom edge and are symmetrically arranged relative to the vertical line; the document page turning scanning device also includes a second photoelectric switch arranged on the frame cover and capable of blocking the light beam by the cantilever during the movement, the second photoelectric switch is located on the side to be turned and at one of the tensioning wheels on the upper bottom edge of one of the page turning synchronous belts.

[0017] In a second aspect, the present application also provides a method for automatically scanning a document, comprising:

[0018] A first driving device is used to drive a gear of the first-stage gear set to rotate in a first direction to drive the third-stage gear set and the fourth-stage gear set to rotate, and the third-stage gear set is used to drive the page suction assembly to move downward from a first preset height toward the bottom plate to suck the paper on the side to be turned, and the fourth-stage gear set is used to drive one end of the page pressing rod to turn from the inside of the frame cover to the outside of the frame cover;

[0019] When rotating in the first direction, the second driving device is used to drive multiple tension wheels to rotate to drive the page turning synchronous belt to rotate, and one of the rotating tension wheels drives the secondary gear set to rotate to drive the brush to turn over the paper in the opposite direction to the paper sucked up by the page suction component;

[0020] A first driving device is used to drive a gear of the first-stage gear set to rotate in the second direction to drive the third-stage gear set and the fourth-stage gear set to rotate, and the third-stage gear set is used to drive the page suction assembly to carry the sucked paper to move to a first preset height;

[0021] When rotating in the second direction, the second driving device is continuously used to drive the plurality of tension wheels to rotate so as to drive the page turning synchronous belt to rotate, so that the cantilever on the page turning synchronous belt moves to the bottom of the paper to be sucked up and the cantilever moves along with the movement of the page turning synchronous belt to cause the paper to turn over;

[0022] When rotating in the second direction, the rotating four-stage gear set drives one end of the page pressing rod to flip the page pressing rod from the outside of the frame cover to the inside of the frame cover;

[0023] The photographing device on the frame cover is used to scan and photograph the turned-over certificate.

[0024] In an application embodiment, it is assumed that the three cantilevers are cantilever A, cantilever B and cantilever C, and when the automatic page turning mechanism of the certificate starts to turn pages, cantilever A and cantilever B are located on the lower bottom edge and are respectively located on the side after turning pages and the side to be turned pages, and cantilever C is located on the upper bottom edge and on the boundary; wherein, during the page turning synchronous belt rotating along the first direction to complete a page turning process, the page sucking action of the page sucking assembly, the page turning action of the cantilever and the page pressing action of the page pressing block are linked to operate as follows:

[0025] Page sucking and opening action: when the second driving device drives the page turning synchronous belt to rotate to drive the cantilever C to move to the position of blocking the light beam emitted by the second photoelectric switch at the upper bottom edge, the first driving device is started to drive a gear of the first-stage gear set to rotate in the first direction to drive the third-stage gear set and the fourth-stage gear set to rotate, so as to drive the page sucking assembly to suck the document paper on the bottom plate and drive the page pressing rod to flip from the inside of the frame cover to the outside of the frame cover;

[0026] The first position exchange of the three cantilevers: while continuing to drive the page turning synchronous belt to rotate, the page suction drive device drives the page suction assembly to move downward relative to the base at the initial page suction position to suck the paper, and drives the three cantilevers to perform the first position exchange in the rotation direction;

[0027] Driving to suck the paper and move it to the first preset height: when the first position exchange is completed, the first driving device is used to drive a gear of the first-stage gear set to rotate in the second direction to drive the third-stage gear set and the fourth-stage gear set to rotate, so as to drive the page suction assembly to suck the document on the bottom plate to the first preset height;

[0028] The second position exchange and page turning action of the three cantilevers: continue to drive the page turning synchronous belt to rotate the cantilever C to move at the bottom edge to turn the sucked paper;

[0029] The page pressing work during the second position exchange process: when a gear of the first-stage gear set rotates along the second direction, it drives the fourth-stage gear set to rotate to drive the page pressing rod to flip the page pressing rod from the outside of the frame cover to the inside of the frame.

[0030] The beneficial effects of the document page turning scanning device and document automatic scanning method provided by the present application are: through the driving connection relationship between the three-stage gear set and the first-stage gear set, the driving connection relationship between the four-stage gear set and the first-stage gear set, and the driving connection relationship between the first-stage gear set and the first driving device, the driving force of the first driving device is transmitted to the three-stage gear set and the four-stage gear set. The rotating three-stage gear set 53 drives the page suction component to move up and down relative to the bottom plate to suck the paper on the side to be turned. In addition, the tension wheel driven by the second driving device drives the secondary gear set connected to it to rotate, and then the secondary gear set drives the brush to rotate in the opposite direction of the page suction component sucking up the paper; therefore, through the cooperation of the page suction action of the page suction component and the reverse flipping of the paper by the brush, the page suction component only sucks up the first page of the top page when sucking the page, which can effectively avoid the situation where the page suction component sucks up multiple pages. In addition, when the first driving device is working, the page turning synchronous belt driven by the first driving device rotates to drive the cantilever 34 to move to the bottom of the sucked paper, and the continuous movement of the cantilever causes the paper to turn. The four-stage gear set is used to drive the page pressing lever to rotate to press the turned paper, and finally the turned paper is scanned and photographed by the scanning device. Therefore, the document page turning scanning device can realize the automatic page turning and scanning operation of the document to reduce the intensity of manual work. When the document page turning scanning device is used in the document inspection process, it is conducive to the intelligent management of document inspection. The top page of paper refers to: the paper whose side to be turned is farthest from the bottom plate surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0032] Figure 1 This is a three-dimensional structural diagram of the document page turning and scanning device according to an embodiment of the present application when the frame cover is rotated to open the side of the bottom plate for placing documents.

[0033] Figure 2 It is a three-dimensional structural diagram of the document page turning scanning device when the frame cover is rotated and covered on the bottom plate according to the embodiment of the present application.

[0034] Figure 3 For the embodiments of this application Figure 2 A three-dimensional structural diagram of the document page turning scanning device with part of the frame cover removed.

[0035] Figure 4 This is a flowchart of the steps of the automatic document scanning method based on the document scanning device in an embodiment of the present application.

[0036] Figure 5 This is a connection diagram of the first driving device, the three-stage gear set, the four-stage gear set and the second photoelectric switch located on the frame cover in an embodiment of the present application.

[0037] Figure 6 This is a structural diagram of the page suction component of an embodiment of the present application.

[0038] Figure 7 This is a connection diagram of the first drive device, the first-stage gear set, the second-stage gear set, the tensioning wheel and the brush located on the frame cover of an embodiment of the present application.

[0039] Figure 8 This is a connection diagram of the first driving device, the three-stage gear set, the first photoelectric switch and the second photoelectric switch located on the frame cover in an embodiment of the present application.

[0040] Fig. 9 This is a schematic diagram of the positional relationship between the three cantilevers on the two page turning timing belts and the second photoelectric switch when the document page turning scanning device of an embodiment of the present application is in the initial page turning position.

[0041] Fig.10 This is a schematic diagram of the position relationship between the three cantilevers on the two page turning synchronous belts of the document page turning scanning device of the embodiment of the present application and the second photoelectric switch during the first position exchange.

[0042] Fig.11 This is a schematic diagram of the positional relationship between the three cantilevers on the two page-turning synchronous belts of the document page-turning scanning device of an embodiment of the present application and the second photoelectric switch during the second position exchange. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0045] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0047] The document page turning scanning device and document automatic scanning method of the present application are now described in detail with reference to the accompanying drawings.

[0048] Refer to Figures 1 to 3 The document page turning scanning device 100 provided in the embodiment of the present application includes a base plate 10 for placing the document to be turned, a frame cover 20 with one end rotatably arranged on the base plate 10, a shooting device 21 for scanning and shooting located on the frame cover 20, and a page turning assembly 30, a first driving device 40, a multi-stage gear set 50, at least one brush 60, a page suction assembly 70 and a page pressing rod 80, all of which are arranged on the frame cover 20.

[0049] Specifically, when the frame cover 20 is rotatably covered on the bottom plate 10, the brush 60 and the page suction assembly 70 are located on the side to be turned over and the page pressing rod 80 is located on the side after the page is turned over. The multi-stage gear set 50 includes a primary gear set 51 driven to rotate by the first driving device 40, a secondary gear set 52, and a tertiary gear set 53 and a quaternary gear set 54 driven to rotate by the primary gear set 51. The secondary gear set 52, the tertiary gear set 53 and the quaternary gear set 54 are respectively driven to connect the brush 60, the page suction assembly 70 and the page pressing rod 80; the rotating tertiary gear set 53 is used to drive the page suction assembly 70 to move up and down relative to the bottom plate 10 to suck the paper on the side to be turned over.

[0050] Specifically, the page turning assembly 30 includes a page turning synchronous belt 31, a plurality of tensioning wheels 32 that are transmission-connected to the page turning synchronous belt 31, a second driving device 33 that drives one of the tensioning wheels 32 to rotate, and a cantilever 34 that is arranged on the page turning synchronous belt 31. The secondary gear set 52 is transmission-connected to one of the tensioning wheels 32, and the secondary gear set 52 that is driven to rotate by the tensioning wheel 32 is used to drive the brush 60 to rotate in the opposite direction to the page suction assembly 70 sucking up the paper, that is, the page suction assembly 70 sucks up the paper and the brush 60 turns down the paper. The circulating page turning synchronous belt 31 is used to drive the cantilever 34 to turn over the sucked paper, and the rotating four-stage gear set 54 is used to drive the page pressing rod 80 to rotate to press the paper after turning over. Among them, the shooting device 21 can be a scanning camera, which is used to scan and shoot the paper after turning over.

[0051] It is worth mentioning that the frame cover 20 is rotatable, and the bottom plate 10 is opened and closed in a rotating form. When it is opened, the certificate can be placed on the base. The area where the certificate is placed on the bottom plate 10 is pre-planned. When the certificate is placed on the bottom plate 10 in an open state, the certificate is divided into a side to be turned and a side after turning the page with the binding as the boundary. It can be understood that the page suction component 70 is used to suck the paper on the side to be turned, so the page suction component 70 is located on the side to be turned; the cantilever 34 moves from the side to be turned to the side to turn the page when turning the page, so as to realize the turning of the paper sucked by the page suction component 70 during the movement process; the page pressing rod 80 is used to press the turned paper flat on the bottom plate 10, so the page pressing rod 80 is set on the side after turning the page.

[0052] In the above-mentioned document page turning scanning device 100, the driving force of the first driving device 40 is transmitted to the three-stage gear set 53 and the four-stage gear set 54 through the driving connection relationship between the three-stage gear set 53 and the first-stage gear set 51, the driving connection relationship between the four-stage gear set 54 and the first-stage gear set 51, and the driving connection relationship between the first-stage gear set 51 and the first driving device 40. The rotating three-stage gear set 53 drives the page suction component 70 to move up and down relative to the bottom plate 10 to suck the paper on the side to be turned. In addition, the tension wheel 32 driven by the second driving device 33 drives the two-stage gear set 52 connected to it to rotate, and then the two-stage gear set 52 drives the brush 60 to rotate in the opposite direction to the page suction component 70 sucking up the paper; therefore, through the cooperation of the page suction action of the page suction component 70 and the reverse flipping of the paper by the brush 60, the page suction component 70 only sucks up the first page of the top page when sucking the page, which can effectively avoid the situation that the page suction component 70 sucks up multiple pages. Furthermore, when the first driving device is working, the page turning synchronous belt 31 driven by the first driving device rotates to drive the cantilever 34 to move to the bottom of the sucked paper, and the continuous movement of the cantilever 34 causes the paper to turn. And the four-stage gear set 54 drives the page pressing rod 80 to rotate to press the paper after turning the page, and finally the scanning device is used to scan and photograph the paper after turning the page. Therefore, the document page turning scanning device 100 can realize automatic page turning and scanning operations of the document to reduce the intensity of manual work. When the document page turning scanning device 100 is used in the document inspection process, it is conducive to the intelligent management of document inspection. The top page of paper refers to: the paper whose side to be turned is farthest from the surface of the bottom plate 10.

[0053] As can be seen from the above content, in the page turning process of the document page turning scanning device 100, four motion processes are required, namely, the page sucking motion of the page sucking assembly 70, the reverse flipping motion of the paper sucked up by the flipping brush 60, the page turning motion of the cantilever 34, and the page pressing motion of the page pressing rod 80. In the document page turning scanning device 100 involved in the embodiment of the present application, the motions of the page sucking assembly 70 and the page pressing rod 80 are both realized by the first driving device 40, and the motions of the brush 60 and the cantilever 34 are both realized by the second driving device 33. In this way, compared with the prior art, four motions use four driving devices, which can save the number of driving devices used and save costs.

[0054] Further Figure 2 and Figure 3As shown, two page turning synchronous belts 31 are relatively arranged on both sides of the frame cover 20 and are located on both sides of the certificate on the bottom plate 10. The second driving device 33 includes a page turning motor 331 arranged on the frame cover 20, a driving wheel 332 driven to rotate by the page turning motor 331, a page turning shaft 334 sleeved with a driven wheel 333 and two tensioning wheels 32, and a transmission belt 335 that is transmission-connected between the driving wheel 332 and the driven wheel 333. Among them, the two tensioning wheels 32 sleeved on the page turning shaft 334 are respectively transmission-connected with one page turning synchronous belt 31. It can be understood that on both sides of the certificate on the bottom plate 10, the two page turning synchronous belts 31 are used to synchronously drive the cantilever 34 thereon to realize page turning, so as to ensure that both sides of the paper sucked up by the page suction assembly 70 are simultaneously subjected to the page turning driving force of the cantilever 34, so that the sucked paper is easier to be turned.

[0055] Please refer to Figure 4 The embodiment of the present application also provides a method for automatically scanning a certificate based on the certificate page turning scanning device 100 , and the method includes the following steps S100 to S500 .

[0056] Step S100: Use the first driving device to drive a gear of the first-stage gear set to rotate in the first direction to drive the third-stage gear set and the fourth-stage gear set to rotate, and drive the page suction assembly to move downward from a first preset height toward the bottom plate through the third-stage gear set to suck the paper on the side to be turned over, and drive one end of the page pressing rod to flip from the inside of the frame cover to the outside of the frame cover through the rotating fourth-stage gear set.

[0057] Step S200: When rotating in the first direction, the second driving device is used to drive multiple tension wheels to rotate to drive the page turning synchronous belt to rotate, and one of the rotating tension wheels drives the secondary gear set to rotate to drive the brush to turn over the paper in the opposite direction to the paper sucked up by the page suction component.

[0058] Step S300: using the first driving device to drive a gear of the first-stage gear set to rotate in the second direction to drive the third-stage gear set and the fourth-stage gear set to rotate, and driving the page suction assembly to move the sucked paper to a first preset height through the third-stage gear set.

[0059] Step S400: When rotating in the second direction, the second driving device is continuously used to drive the plurality of tension wheels to rotate to drive the page turning synchronous belt to rotate, so that the cantilever on the page turning synchronous belt moves to the bottom of the paper and the cantilever moves with the movement of the page turning synchronous belt to cause the paper to turn.

[0060] Step S500: When rotating in the second direction, the rotating four-stage gear set drives one end of the page pressing rod to flip the page pressing rod from the outside of the frame cover to the inside of the frame cover.

[0061] Step S600: Scan and photograph the turned-over document using the photographing device on the frame cover.

[0062] It is worth mentioning that, as mentioned above, when the document page turning scanning device 100 starts turning pages, the page suction component 70 is away from the document on the non-contact bottom plate 10, and the first preset height can be understood as: the page suction component 70 is away from the bottom plate 10 at a preset height before the page suction starts, and after the page suction component 70 moves downward to suck the paper, the first driving device 40 will drive the page suction component 70 to move upward to return to the first preset height.

[0063] Combined with reference Figure 3 , Figure 5 and Figure 6 The three-stage gear set 53 includes at least one page suction gear 531, on which a pin 532 is fixedly arranged. The page suction assembly 70 includes a sliding plate 71, both ends of which can slide along the frame cover 20 and are located on the side of the bottom plate 10 for placing documents, a through hole 72 opened in the middle of the sliding plate 71, and at least one suction cup 73 for sucking pages arranged on the sliding plate 71. One end of the pin 532 is limited in the through hole 72, and the pin 532 drives the sliding plate 71 on the frame cover 20 and moves up and down relative to the bottom plate 10 when the page suction gear 531 rotates.

[0064] It is worth noting that when the page suction gear 531 rotates, the pin 532 is driven to rotate. Since one end of the pin 532 is disposed in the through hole 72, the rotating pin 532 causes the sliding plate 71 to move up and down along the frame cover 20, thereby driving the page suction cup 73 on the sliding plate 71 to move up and down. It can be understood that the page suction gear 531 rotates in opposite directions to achieve the upward and downward movement of the sliding suction cup 73. The suction cup 73 moves downward to suck the paper of the certificate on the bottom plate 10, and the suction cup 73 moves upward to suck up the paper.

[0065] Furthermore, the page suction assembly 70 further includes a first photoelectric switch 74 disposed on the frame cover 20 and a first photoelectric baffle 75 fixedly disposed on the sliding plate 71. When the sliding plate 71 is located at the page suction starting position of the first preset height, the first photoelectric baffle 75 is used to block the light beam emitted by the first photoelectric switch 74. Thus, when the first photoelectric baffle 75 blocks the light beam of the first photoelectric switch 74, it means that the page suction assembly 70 is located at the first preset height.

[0066] Further Figure 2 As shown, the frame cover 20 is provided with receiving holes 22 on both sides thereof, and a first connecting shaft 23 is fixedly provided in each receiving hole 22. The two ends of the sliding plate 71 are respectively slidably mounted on the two first connecting shafts 23, and when the frame cover 20 is rotatably covered on the bottom plate 10, the first connecting shaft 23 is vertically arranged with the bottom plate 10.

[0067] Furthermore, two rotatable second connecting shafts 24 are provided on the frame cover 20, each second connecting shaft 24 extends from the side to be turned over to the side after the page is turned over, and each second connecting shaft 24 and a first connecting shaft 23 are arranged perpendicularly to each other on the same side of the frame cover 20, and one end of each second connecting shaft 24 is sleeved with a page pressing gear 541 meshing with a four-stage gear set 54, and the other end is fixedly provided with a page pressing rod 80.

[0068] Combined with reference Figure 2 , Figure 7 and Figure 8 The frame cover 20 is also provided with a third connecting shaft 25 and two fourth connecting shafts 26 arranged side by side. The third connecting shaft 25 is sleeved with a brush 60, arranged on the side of the document to be turned and located between two page turning synchronous belts 31. A tensioning wheel 32 is provided at one end of each fourth connecting shaft 26, which is in transmission connection with a page turning synchronous belt 31; one gear of a secondary gear set 52 is provided at the other end of each fourth connecting shaft 26, and the other gear of the secondary gear set 52 is provided on the third connecting shaft 25, and the two gears of the same secondary gear set 52 are meshed with each other.

[0069] Combined with reference Figure 1 , Figures 7 and 8 Each page turning synchronous belt 31 is maintained in a right-angle trapezoidal structure by four tensioning wheels 32. The two tensioning wheels 32 connected to the lower bottom edge of the page turning synchronous belt 31 are respectively located on the side to be turned and the side after turning the page, and the other two tensioning wheels 32 connected to the upper bottom edge of the page turning synchronous belt 31 are respectively located on the side to be turned and the side after turning the page, and the right-angle side of the right-angle trapezoidal structure is located on the side to be turned, and the length of the lower bottom edge is greater than the upper bottom edge and the lower bottom edge is closer to the bottom plate 10 than the upper bottom edge. Three cantilevers 34 are fixedly arranged on the page turning synchronous belt 31, and the three cantilevers 34 divide the page turning synchronous belt 31 equally. In the process of turning the page of the page turning synchronous belt 31, at the beginning and the end of turning the page, one of the cantilevers 34 is located on the upper bottom edge and the vertical line from one of the cantilevers 34 to the lower bottom edge is located on the boundary between the side to be turned and the side after turning the page, and the other two cantilevers 34 are located on the lower bottom edge and are symmetrically arranged relative to the vertical line.

[0070] In an embodiment of the application, the first-stage gear set 51 includes an odd number of gears meshing in sequence, specifically, five gears meshing in sequence; the third-stage gear set 53 includes two mutually meshing page suction gears 531; and the fourth-stage gear set 54 includes three meshing gears in sequence. Among them, a gear at the head of the first-stage gear set 51 is driven to rotate by the first driving device 40, and a gear at the tail of the first-stage gear set 51 drives a page suction gear 531 at the head of the third-stage gear set 53 and a page pressing gear 541 at the head of the fourth-stage gear set 54, that is, when a gear at the tail of the first-stage gear set 51 rotates, it can drive the third-stage gear set 53 and the fourth-stage gear set 54 to rotate. The pins 532 on the two page suction gears 531 of the three-stage gear set 53 are both confined in the through holes 72 of the sliding plate 71; a page pressing gear 541 at the tail of the four-stage gear set 54 drives and connects the page pressing rod 80, and when the page pressing gear 541 at the tail of the four-stage gear set 54 rotates, the page pressing rod 80 can be driven to rotate.

[0071] Combined with reference Figure 2 and Figure 8 The document page turning scanning device 100 also includes a second photoelectric switch 90 arranged on the frame cover 20 and the light beam can be blocked by the cantilever 34 during the movement. The second photoelectric switch 90 is located on the rear side of the page turning and is located at a tension wheel 32 on the upper bottom edge of one of the page turning timing belts 31.

[0072] It is worth noting that when the ID card page turning scanning device 100 initially turns pages, the page suction component 70 is away from the bottom plate 10 and does not contact the ID card, and similarly, the page pressing rod 80 is also away from the bottom plate 10 and does not contact the ID card. During the page turning process, the page suction action is performed first, then the page turning action is performed, and finally the page pressing action is performed. Reasonable planning of the linkage relationship between the operations of the various components of the ID card page turning scanning device 100 can better connect the page suction action, page turning action and page pressing action to avoid too long waiting between each action or incoherence between each action, so as to save the time required for a page turning operation. One page turning operation refers to a combined movement of page suction, page turning and page pressing. Through the structure and position relationship of the turnover page turning synchronous belt 31, the three cantilevers 34 that divide the paging synchronous belt into equal parts, and the second photoelectric switch 90, the linkage relationship between the page suction operation of the page suction component 70 of the ID card page turning scanning device 100, the page turning operation of the cantilever 34 and the page pressing operation of the page pressing rod 80 is reasonably planned. Specifically, combined with Figure 2 , Figures 9 to 11 , the linkage relationship between the above three actions is explained.

[0073] in, Fig. 9 Schematic diagram of the positional relationship between the three cantilevers 34 on the two page turning synchronous belts 31 and the second photoelectric switch 90 when the document page turning scanning device 100 is in the initial page turning position; Fig.10Schematic diagram of the position relationship between the three cantilevers 34 on the two page turning synchronous belts 31 of the document page turning scanning device 100 and the second photoelectric switch 90 when performing the first position exchange; Fig.11 The figure is a schematic diagram of the positional relationship between the three cantilevers 34 on the two page turning synchronous belts 31 of the document page turning scanning device 100 and the second photoelectric switch 90 during the second position exchange. Assuming that the three cantilevers 34 are respectively cantilever A, cantilever B and cantilever C, when the document page turning scanning device 100 initially turns pages, cantilever A and cantilever B are located on the lower bottom edge and are located on the side after turning the page and the side to be turned, respectively, and cantilever C is located on the upper bottom edge and is located on the boundary between the side to be turned and the side after turning the page.

[0074] In one embodiment of the application, for the above-mentioned automatic document scanning method, when the page turning synchronous belt 31 rotates along the first direction to complete a page turning process, the three cantilevers 34 are operated in conjunction with the page suction action of the page suction assembly 70, the page turning action of the cantilever 34, and the page pressing action of the page pressing rod 80 as follows:

[0075] Page sucking and opening action: when the second driving device drives the page turning synchronous belt to rotate to drive the cantilever C to move to the position of blocking the light beam emitted by the second photoelectric switch at the upper bottom edge, the first driving device is started to drive a gear of the first-stage gear set to rotate in the first direction to drive the third-stage gear set and the fourth-stage gear set to rotate, so as to drive the page sucking assembly to suck the document paper on the bottom plate and drive the page pressing rod to flip from the inside of the frame cover to the outside of the frame cover;

[0076] The first position exchange of the three cantilevers: while continuing to drive the page turning synchronous belt to rotate, the page suction drive device drives the page suction assembly to move downward relative to the base at the initial page suction position to suck the paper, and drives the three cantilevers to perform the first position exchange in the rotation direction;

[0077] Driving to suck the paper and move it to the first preset height: when the first position exchange is completed, the first driving device is used to drive a gear of the first-stage gear set to rotate in the second direction to drive the third-stage gear set and the fourth-stage gear set to rotate, so as to drive the page suction assembly to suck the document on the bottom plate to the first preset height;

[0078] The second position exchange and page turning action of the three cantilevers: continue to drive the page turning synchronous belt to rotate the cantilever C to move at the bottom edge to turn the sucked paper;

[0079] The page pressing work during the second position exchange process: when a gear of the first-stage gear set rotates along the second direction, it drives the fourth-stage gear set to rotate to drive the page pressing rod to flip the page pressing rod from the outside of the frame cover to the inside of the frame.

[0080] It can be understood that the first direction and the second direction are opposite directions to each other.

[0081] In summary, the document page turning scanner involved in the present application realizes the front-to-back linkage of the aforementioned page suction component, page turning action and page pressing action through the page turning timing belt, the aforementioned three cantilevers, the page suction photoelectric switch, the second photoelectric switch and the connection relationship of each component.

[0082] Furthermore, the document scanning device further includes a main control board, which is connected to and controls the first driving device 40, the second driving device 33 and the photographing device 21, and the second driving device 33 can be a servo motor. During the process in which the first driving device 40 drives a gear of the first-stage gear set 51 to realize a reverse driving process in the first direction and the second direction, the page pressing rod 80 realizes a page pressing process, and at this time, the main control board controls the photographing device 21 to scan and photograph the paper after the page is turned.

[0083] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A document page scanning device, characterized in that: include: A bottom plate, on which the documents to be turned are placed; A frame cover with one end rotatably arranged on the bottom plate; a photographing device located on the frame cover and used for scanning and photographing, and A page turning assembly, a first driving device, a multi-stage gear set, at least one brush, a page suction assembly and a page pressing rod, all of which are arranged on the frame cover; The multi-stage gear set includes a primary gear set driven by the first driving device, a secondary gear set connected to the page turning assembly, and a tertiary gear set and a quaternary gear set both driven by the primary gear set; the secondary gear set is drivingly connected to the brush, the tertiary gear set is drivingly connected to the page suction assembly, and the quaternary gear set is drivingly connected to the page pressing rod; the rotating tertiary gear set is used to drive the page suction assembly to move up and down relative to the bottom plate to suck the paper on the side to be turned; The page turning assembly includes a page turning synchronous belt, a plurality of tensioning wheels drivingly connected to the page turning synchronous belt, a second driving device driving one of the tensioning wheels to rotate, and a cantilever arranged on the page turning synchronous belt; the tensioning wheel is drivingly connected to the secondary gear set, the secondary gear set driven by the tensioning wheel is used to drive the brush to rotate in the opposite direction to the direction in which the page suction assembly sucks up the paper, the circulating page turning synchronous belt is used to drive the cantilever to turn over the sucked paper, and the rotating four-stage gear set is used to drive the page pressing rod to rotate to press the paper after turning the page.

2. The document page turning scanning device as claimed in claim 1, characterized in that: The three-stage gear set includes at least one page suction gear, on which a pin is fixed; the page suction assembly structure includes a sliding plate whose two ends can slide along the frame cover and is located on one side of the bottom plate for placing documents, a through hole opened in the middle of the sliding plate, and at least one suction cup for sucking pages arranged on the sliding plate; one end of the pin is confined in the through hole, and the pin drives the sliding plate on the frame cover and moves up and down relative to the bottom plate when the page suction gear rotates.

3. The document page turning scanning device as claimed in claim 2, characterized in that: The page suction assembly also includes a first photoelectric switch arranged on the frame cover and a first photoelectric baffle fixedly arranged on the sliding plate. When the sliding plate is located at a page suction starting position at a first preset height, the first photoelectric baffle is used to block the light beam emitted by the first photoelectric switch.

4. The document page turning scanning device as claimed in claim 2, characterized in that: The frame cover is provided with accommodating holes on both sides opposite to each other, and a first connecting shaft is fixedly arranged in each of the accommodating holes. The two ends of the sliding plate are respectively slidably mounted on the two first connecting shafts, and when the frame cover is rotatably covered on the bottom plate, the first connecting shaft is perpendicular to the bottom plate; the frame cover is also provided with two rotatable second connecting shafts, each of which extends from the side to be turned over to the side after turning the page and is perpendicular to the first connecting shaft on the same side of the frame cover, and one end of each of the second connecting shafts is provided with a page pressing gear meshing with the four-stage gear set, and the other end is fixedly provided with the page pressing rod.

5. The document page turning scanning device as claimed in claim 1, characterized in that: The two page-turning synchronous belts are relatively arranged on both sides of the frame cover and are located on both sides of the document on the bottom plate; the second driving device includes a page-turning motor arranged on the frame cover, a driving wheel driven by the page-turning motor, a page-turning shaft provided with a driven wheel and two tensioning wheels, and a transmission belt connecting the driving wheel and the driven wheel, and the two tensioning wheels provided on the page-turning shaft are respectively connected to one of the page-turning synchronous belts for transmission.

6. The document page turning scanning device as claimed in claim 5, characterized in that: The frame cover is also provided with a third connecting shaft and two fourth connecting shafts arranged side by side. The third connecting shaft sleeve is provided with the brush, is arranged on the side of the document to be turned over and is located between the two page-turning synchronous belts. One end of each of the fourth connecting shafts is provided with a tensioning wheel that is transmission-connected to one of the page-turning synchronous belts; the secondary gear set includes two meshing gears, one of the gears of the secondary gear set is provided on the other end of each of the fourth connecting shafts, and the other gear of the secondary gear set is provided on the third connecting shaft.

7. The document page turning scanning device according to any one of claims 1 to 6, characterized in that: Each of the page-turning synchronous belts is maintained into a right-angled trapezoidal structure by four tensioning wheels; the two tensioning wheels connected to the lower bottom edge of the page-turning synchronous belt are respectively located on the side to be turned and the side after turning the page, and the other two tensioning wheels connected to the upper bottom edge of the page-turning synchronous belt are respectively located on the side to be turned and the side after turning the page, the right-angled side of the right-angled trapezoidal structure is located on the side to be turned, the length of the lower bottom edge is greater than the upper bottom edge, and the lower bottom edge is closer to the bottom plate than the upper bottom edge; three cantilevers are fixedly arranged on the page-turning synchronous belt, and the three cantilevers flatten the page-turning synchronous belt equally divided; during a rotation and page turning process of the page turning synchronous belt, at the beginning and end of page turning, one of the cantilevers is located at the upper bottom edge and the vertical line from one of the cantilevers to the lower bottom edge is located on the boundary between the side to be turned and the side after turning the page, and the other two cantilevers are located on the lower bottom edge and are symmetrically arranged relative to the vertical line; the document page turning scanning device also includes a second photoelectric switch arranged on the frame cover and capable of blocking the light beam by the cantilever during the movement, the second photoelectric switch is located on the side to be turned and at one of the tensioning wheels on the upper bottom edge of one of the page turning synchronous belts.

8. A method for automatically scanning a certificate, based on the certificate page turning scanning device as claimed in claim 7, characterized in that: A first driving device is used to drive a gear of the first-stage gear set to rotate in a first direction to drive the third-stage gear set and the fourth-stage gear set to rotate, and the third-stage gear set is used to drive the page suction assembly to move downward from a first preset height toward the bottom plate to suck the paper on the side to be turned, and the fourth-stage gear set is used to drive one end of the page pressing rod to turn from the inside of the frame cover to the outside of the frame cover; When rotating in the first direction, the second driving device is used to drive multiple tension wheels to rotate to drive the page turning synchronous belt to rotate, and one of the rotating tension wheels drives the secondary gear set to rotate to drive the brush to turn over the paper in the opposite direction to the paper sucked up by the page suction component; A first driving device is used to drive a gear of the first-stage gear set to rotate in the second direction to drive the third-stage gear set and the fourth-stage gear set to rotate, and the third-stage gear set is used to drive the page suction assembly to move the sucked paper to a first preset height; When rotating in the second direction, the second driving device is continuously used to drive the plurality of tension wheels to rotate so as to drive the page turning synchronous belt to rotate, so that the cantilever on the page turning synchronous belt moves to the bottom of the paper to be sucked up and the cantilever moves along with the movement of the page turning synchronous belt to cause the paper to turn over; When rotating in the second direction, the rotating four-stage gear set drives one end of the page pressing rod to flip the page pressing rod from the outside of the frame cover to the inside of the frame cover; The photographing device on the frame cover is used to scan and photograph the turned-over certificate.

9. The automatic document scanning method according to claim 8, characterized in that: Assuming that the three cantilevers are cantilever A, cantilever B and cantilever C, when the automatic page turning mechanism of the certificate starts to turn pages, cantilever A and cantilever B are located on the lower bottom edge and are respectively located on the side after turning pages and the side to be turned pages, and cantilever C is located on the upper bottom edge and on the boundary; wherein, during the process of the page turning synchronous belt rotating along the first direction to complete a page turning, the page sucking action of the page sucking assembly, the page turning action of the cantilever and the page pressing action of the page pressing block are linked to operate as follows: Page sucking and opening action: when the second driving device drives the page turning synchronous belt to rotate to drive the cantilever C to move to the position of blocking the light beam emitted by the second photoelectric switch at the upper bottom edge, the first driving device is started to drive a gear of the first-stage gear set to rotate in the first direction to drive the third-stage gear set and the fourth-stage gear set to rotate, so as to drive the page sucking assembly to suck the document paper on the bottom plate and drive the page pressing rod to flip from the inside of the frame cover to the outside of the frame cover; The first position exchange of the three cantilevers: while continuing to drive the page turning synchronous belt to rotate, the page suction drive device drives the page suction assembly to move downward relative to the base at the initial page suction position to suck the paper, and drives the three cantilevers to perform the first position exchange in the rotation direction; Driving to suck the paper and move it to the first preset height: when the first position exchange is completed, the first driving device is used to drive a gear of the first-stage gear set to rotate in the second direction to drive the third-stage gear set and the fourth-stage gear set to rotate, so as to drive the page suction assembly to suck the document on the bottom plate to the first preset height; The second position exchange and page turning action of the three cantilevers: continue to drive the page turning synchronous belt to rotate the cantilever C to move at the bottom edge to turn the sucked paper; The page pressing work during the second position exchange process: when a gear of the first-stage gear set rotates along the second direction, it drives the fourth-stage gear set to rotate to drive the page pressing rod to flip the page pressing rod from the outside of the frame cover to the inside of the frame.

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