A document automatic page turning scanning device

Abstract

The invention discloses an automatic page turning and scanning device for documents, and specifically relates to the technical field of document scanning, comprising a workbench, a fixing component for fixing books is arranged on the top of the workbench, vertical plates are fixed on both sides of the workbench, a horizontal plate is fixed between the two vertical plates, and scanners for scanning books are installed on both sides of the bottom of the horizontal plate; the upper cylinder drives the connecting arm and the touch block to move downward as a whole, so that the touch plate can be pushed in the direction of the movable plate, and then the limit ring is driven to rotate, so that the pressing frame is separated from the book, and the friction force of the device on the book is reduced, so that the air guide box can absorb and move the book pages, and by setting a safety distance, the air guide box can avoid collision with the book while still allowing the book pages to be attracted by the air guide box, and as the pages of the book in the unopened area of ​​the book are continuously drawn out, under the action of the spring, the movable plate will always keep the tendency of moving downward, so that books or documents of different thicknesses can be pressed.

Description

Technical Field

[0001] The invention relates to the field of document scanning, and in particular to an automatic page turning and scanning device for documents. Background Art

[0002] Document scanning refers to converting paper documents into electronic documents through scanning and computer processing. It is often used when there are many paper documents that need to be converted into electronic documents. The general equipment is a document scanner, which can quickly convert scanned images into editable documents through OCR text recognition function, thereby greatly improving office efficiency;

[0003] The document scanners currently on the market require manual assistance in scanning documents. For example, when a document needs to be turned over, it is necessary to turn the pages manually. Although there are some scanners on the market that can automatically turn pages, in actual working processes, due to the different materials of the document paper, when the pages are pressed and pulled out, due to the large friction between the papers, the pages may occasionally not be turned, which may lead to omissions in document scanning. Summary of the invention

[0004] The purpose of the present invention is to provide a document automatic page turning scanning device to solve the above-mentioned shortcomings in the technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a document automatic page turning scanning device, comprising a workbench, a fixing assembly for fixing books is arranged on the top of the workbench, vertical boards are fixed on both sides of the workbench, a horizontal board is fixed between the two vertical boards, and scanners for scanning books are installed on both sides of the bottom of the horizontal board;

[0006] A screw rod and a guide rod are arranged between the two vertical plates, a forward and reverse motor is installed on the outside of one of the vertical plates, a controller is installed on the outside of the other vertical plate, the guide rod is fixedly connected to the vertical plate, one end of the screw rod passes through one of the vertical plates and is connected to the transmission shaft of the forward and reverse motor, and the other end of the screw rod is rotatably connected to the other vertical plate through a bearing;

[0007] The screw rod and the guide rod are jointly provided with a guide block, the screw rod is threadedly connected to the guide block, the guide rod passes through the guide block, an upper cylinder is installed on the top of the guide block, the piston rod of the upper cylinder extends to the bottom of the guide block and is connected to a connecting arm, a touch block is fixed to the bottom of one side of the connecting arm, the internal thread of the touch block is connected to an air guide pipe, the top end of the air guide pipe extends to the top of the touch block, the bottom end of the air guide pipe extends to the bottom of the touch block and is fixed with an air guide box, and a plurality of air inlet holes are opened at the bottom of the air guide box.

[0008] Preferably, the fixing assembly includes an L-shaped plate, a support plate is fixed on the top of the L-shaped plate, a first screw is rotatably connected to the middle of the bottom of the L-shaped plate through a bearing, and limiting columns are fixed on both sides of the L-shaped plate, the limiting columns pass through the workbench, the first screw is threadedly connected to the workbench, and a handwheel is installed at the bottom of the first screw.

[0009] Preferably, a book unopened surface pressing mechanism for pressing the unopened surface of the book is provided on a side of the top of the workbench away from the fixing assembly;

[0010] The book unopened surface pressing mechanism comprises a slide plate, which is mounted on the top of the workbench through a sliding assembly, and a movable plate is arranged above the slide plate, and both sides of the movable plate are penetrated by limit rods, and the bottom end of the limit rod is fixedly connected to the slide plate;

[0011] Connecting frames are fixed obliquely downward on both sides of the movable plate, and shafts are rotatably connected between the connecting frames through bearings. A plurality of clamping wheels are installed on the outside of the shafts through bearings.

[0012] Preferably, the shaft rod is sleeved with a limiting ring at positions near both ends thereof, a pressing frame is provided on one side of the bottom of the limiting ring tilted downward, and a touch plate is provided on one side of the top of the limiting ring tilted upward;

[0013] The inner diameter of the limit ring is consistent with the diameter of the shaft, and the limit ring, the pressure frame and the touch plate are all integrated structures;

[0014] A spring sheet is connected between the touch plate and the movable plate;

[0015] The bottom of the touch block and the top of the touch panel both have arc-shaped rounded transitions.

[0016] Preferably, the sliding assembly includes two T-shaped rails, both of which are fixed on the top of the workbench, and a T-shaped slot matching the T-shaped rails is opened inside the slide board, and a locking bolt is threadedly connected to the top of the slide board, and the bottom end of the locking bolt is in contact with the T-shaped rails.

[0017] Preferably, a limiting plate is fixed to the top end of the limiting rod, and a spring is sleeved on the outside of the limiting rod between the limiting plate and the movable plate.

[0018] Preferably, the cross-sectional shape of the air guide box is a right-angled trapezoidal structure, and one side of the hypotenuse of the air guide box is close to the clamping wheel, and a laser ranging sensor is installed on one side of the right-angled side of the air guide box.

[0019] Preferably, a lower cylinder is installed on the top of the workbench below the support plate, a support frame is fixed on the piston rod of the lower cylinder, a support frame is fixed on the top of the support frame on both sides of the support plate, and a movable pressing plate is provided on the top of the support frame;

[0020] An external connection plate is connected to one side of the support frame;

[0021] One side of the pressing plate is connected with an inner connecting plate;

[0022] The outer connecting plate is threadedly connected with a second screw rod, and one end of the second screw rod is rotatably connected to the inner connecting plate via a bearing.

[0023] Preferably, a pressure sensor is installed at the bottom of the pressing plate, and a first infrared obstacle sensor and a second infrared obstacle sensor are respectively installed on both sides of the supporting plate.

[0024] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0025] The upper cylinder drives the connecting arm and the touch block to move downward as a whole, and the touch plate can be pushed toward the movable plate, thereby driving the limit ring to rotate, so that the pressing frame is separated from the book, reducing the friction of the device on the book, so that the air guide box can absorb and move the book pages. By setting a safe distance, the air guide box can avoid collision with the book while allowing the air guide box to attract the book pages. As the pages in the unopened area of ​​the book are continuously pulled out, the spring will keep the movable plate moving downward, so that books or documents of different thicknesses can be pressed tightly.

[0026] When the touch block and the touch plate are touched, the spring piece will reset the touch plate and the pressing frame, so that the pressing frame will contact and squeeze the book again, increasing the friction of the book and preventing the pages from being scattered in the unopened area of ​​the book. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a front view of the present invention;

[0030] Figure 3 for Figure 2 A magnified view of part A in FIG.

[0031] Figure 4 It is a schematic diagram of the structure of the shrapnel of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the clamping wheel of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the air guide box of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the L-shaped plate of the present invention;

[0035] Figure 8 is a schematic structural diagram of the second screw of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the support frame of the present invention;

[0037] Fig.10 A top view of the pressing plate of the present invention;

[0038] Fig.11 A schematic diagram of the structure of the support frame of the present invention;

[0039] Fig.12 It is a schematic diagram of the height difference of the present invention.

[0040] Description of reference numerals:

[0041] 1. Workbench; 2. Vertical plate; 3. Horizontal plate; 4. Controller; 5. Guide block; 6. Upper cylinder; 7. Forward and reverse motor; 8. T-type track; 9. Slide plate; 10. Limit rod; 11. Movable plate; 12. Screw rod; 13. Guide rod; 14. Scanner; 15. Lower cylinder; 16. Support frame; 17. First screw rod; 18. Touch block; 19. Connecting arm; 20. L-type plate; 21. Locking bolt; 22. Air guide box; 23. Laser distance sensor; 24. Spring Plate; 25, clamping wheel; 26, touch plate; 27, spring; 28, limit plate; 29, support plate; 30, limit column; 31, first infrared obstacle sensor; 32, second infrared obstacle sensor; 33, pressure plate; 34, outer connecting plate; 35, inner connecting plate; 36, second screw; 37, pressure sensor; 38, pressure frame; 39, connecting frame; 40, shaft; 41, limit ring; 42, air inlet; 43, air guide tube; 44, support frame. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] The present invention provides Figure 1-Figure 11The document automatic page turning scanning device shown in the figure comprises a workbench 1, a fixing assembly for fixing books is arranged on the top of the workbench 1, vertical boards 2 are fixed on both sides of the workbench 1, a horizontal board 3 is fixed between the two vertical boards 2, and scanners 14 for scanning books are installed on both sides of the bottom of the horizontal board 3;

[0044] A screw rod 12 and a guide rod 13 are arranged between the two vertical plates 2, a forward and reverse motor 7 is installed on the outside of one of the vertical plates 2, a controller 4 is installed on the outside of the other vertical plate 2, the guide rod 13 is fixedly connected to the vertical plates 2, one end of the screw rod 12 passes through one of the vertical plates 2 and is connected to the transmission shaft of the forward and reverse motor 7, and the other end of the screw rod 12 is rotatably connected to the other vertical plate 2 through a bearing;

[0045] The screw rod 12 and the guide rod 13 are provided with a guide block 5 in total. The screw rod 12 is threadedly connected to the guide block 5, and the guide rod 13 passes through the guide block 5. An upper cylinder 6 is installed on the top of the guide block 5. The piston rod of the upper cylinder 6 extends to the bottom of the guide block 5 and is connected to a connecting arm 19. A touch block 18 is fixed to the bottom of one side of the connecting arm 19. The internal thread of the touch block 18 is connected to an air guide pipe 43. The top end of the air guide pipe 43 extends to the top of the touch block 18, and the bottom end of the air guide pipe 43 extends to the bottom of the touch block 18 and is fixed with an air guide box 22. A plurality of air inlet holes 42 are opened at the bottom of the air guide box 22.

[0046] Furthermore, the fixing assembly includes an L-shaped plate 20, a support plate 29 is fixed on the top of the L-shaped plate 20, a first screw 17 is rotatably connected to the middle of the bottom of the L-shaped plate 20 through a bearing, and limiting columns 30 are fixed on both sides of the L-shaped plate 20, the limiting columns 30 pass through the workbench 1, the first screw 17 is threadedly connected to the workbench 1, and a handwheel is installed at the bottom of the first screw 17. The first screw 17 is driven to rotate by the handwheel, so that the L-shaped plate 20 can be moved downward, and the middle of the book can be clamped.

[0047] Furthermore, a book unopened surface pressing mechanism for pressing the unopened surface of the book is provided on one side of the top of the workbench 1 away from the fixing assembly;

[0048] The book unopened surface pressing mechanism comprises a slide plate 9, which is mounted on the top of the workbench 1 through a sliding assembly, and a movable plate 11 is arranged above the slide plate 9, and both sides of the movable plate 11 are penetrated by limit rods 10, and the bottom end of the limit rod 10 is fixedly connected to the slide plate 9;

[0049] Connecting frames 39 are fixed obliquely downward on both sides of the movable plate 11 , and shafts 40 are rotatably connected between the connecting frames 39 via bearings, and a plurality of clamping wheels 25 are mounted on the outside of the shafts 40 via bearings.

[0050] Furthermore, the shaft 40 is sleeved with a limit ring 41 at positions near both ends thereof, a pressing frame 38 is arranged on one side of the bottom of the limit ring 41 and a touch plate 26 is arranged on one side of the top of the limit ring 41 and is inclined upward;

[0051] The inner diameter of the limiting ring 41 is consistent with the diameter of the shaft 40, and the limiting ring 41, the pressing frame 38 and the touch plate 26 are all integrated structures;

[0052] A spring 24 is connected between the touch plate 26 and the movable plate 11;

[0053] The bottom of the touch block 18 and the top of the touch plate 26 both have arc-shaped rounded transitions.

[0054] Furthermore, the sliding assembly includes two T-shaped rails 8, both of which are fixed on the top of the workbench 1, and a T-shaped slot matching the T-shaped rails 8 is opened inside the slide plate 9. The top of the slide plate 9 is connected with a locking bolt 21 through a thread, and the bottom end of the locking bolt 21 contacts the T-shaped rail 8. The slide plate 9 is slid along the T-shaped rail 8 to perform subsequent page turning operations on documents and books of different widths.

[0055] Furthermore, a limiting plate 28 is fixed to the top of the limiting rod 10 , and a spring 27 is sleeved on the outside of the limiting rod 10 between the limiting plate 28 and the movable plate 11 .

[0056] Furthermore, the cross-sectional shape of the air guide box 22 is a right-angled trapezoidal structure, and one side of the hypotenuse of the air guide box 22 is close to the clamping wheel 25 , and a laser ranging sensor 23 is installed on one side of the right-angled side of the air guide box 22 .

[0057] Specifically, the top of the workbench 1 is located below the support plate 29 and a lower cylinder 15 is installed. A support frame 16 is fixed on the piston rod of the lower cylinder 15. The top of the support frame 16 is located on both sides of the support plate 29 and a support frame 44 is fixed. A movable pressing plate 33 is provided on the top of the support frame 44.

[0058] One side of the support frame 44 is connected to the outer connecting plate 34;

[0059] One side of the pressing plate 33 is connected to an inner connecting plate 35;

[0060] A second screw rod 36 is threadedly connected to the outer connecting plate 34, and one end of the second screw rod 36 is rotatably connected to the inner connecting plate 35 via a bearing. By rotating the second screw rod 36, the inner connecting plate 35 and the pressure plate 33 can be moved as a whole. In conjunction with the sliding assembly, the device can turn pages and scan books of different widths.

[0061] Specifically, a pressure sensor 37 is installed at the bottom of the pressure plate 33 , and a first infrared obstacle sensor 31 and a second infrared obstacle sensor 32 are installed on both sides of the support plate 29 , respectively.

[0062] The specific working principle is as follows:

[0063] The controller 4 is used to make the forward and reverse motors 7 drive the screw rod 12 to rotate, so that the guide block 5 moves along the guide rod 13 to the top of the book unopened area (for the convenience of explaining the principle later, the book unopened area and the book opened area are introduced here, as shown in the attached manual Figure 2 As shown, the unopened area of ​​the book is located in the Figure 2 The upper cylinder 6 then drives the connecting arm 19 and the touch block 18 to move downward as a whole through the piston rod. During the downward movement of the touch block 18, it will contact the touch plate 26. The arc structure at the bottom of the touch block 18 can be used to push the touch plate 26 toward the movable plate 11, thereby driving the limit ring 41 to rotate, so that the pressure frame 38 is separated from the book, reducing the friction of the device on the book. At this time, the book is only squeezed by the pressure wheel 25 on the shaft 40, and then when the air guide box 22 is close to the book, the top page of the book can be easily attracted and pulled out from the pressure wheel The bottom of the air guide box 25 is pulled out and adsorbed on the outside of the air guide box 22 (the laser distance sensor 23 can monitor the distance between the air guide box 22 and the book, so that the air guide box 22 can attract the book pages while avoiding the collision between the air guide box 22 and the book, which can be briefly described as "safe distance". The attraction is mainly achieved by negative pressure. The specific principle is: "the air guide tube 43 is connected to the negative pressure device to cause negative pressure in the air guide box 22". If the lower layer of book pages are brought out by the upper layer of book pages during the process of pulling out the book pages, the pinch wheel 25 on the shaft 40 can be removed to avoid this phenomenon);

[0064] As the pages in the unopened area of ​​the book are continuously pulled out, the spring 27 will keep the movable plate 11 moving downward, thereby ensuring that the pressing frame 38 can always press the book, avoiding the unopened area of ​​the book from being scattered after the pages are turned, and furthermore, books or documents of different thicknesses can be pressed tightly.

[0065] After the topmost page of the book is adsorbed by the air guide box 22, the upper cylinder 6 drives the connecting arm 19 and the touch block 18 to move upward as a whole through the piston rod. During the upward movement of the touch block 18, it will separate from the touch plate 26. At this time, under the action of the spring 24, the touch plate 26 and the pressing frame 38 will be reset, so that the pressing frame 38 will contact and squeeze the book again, increasing the friction of the book, and avoiding the phenomenon of scattered pages in the unopened area of ​​the book;

[0066] Afterwards, the forward and reverse motor 7 drives the screw rod 12 to rotate in the opposite direction, so that the guide block 5 moves along the guide rod 13 to the top of the book opening area. When the book page moves from the unopened area to the book opening area, the laser ranging sensor 23 will also monitor the height between it and the book. When the height fluctuates, it is called "height difference" (the fluctuation here will appear in the middle of the book, which is also the junction of the book opening page and the book unopened page. There will be a height difference here. For details, please refer to the attached manual Fig.12 ), the upper cylinder 6 will drive the connecting arm 19 to move downward through the piston rod. The specific downward movement depends on the "safe distance". When the air guide box 22 and the laser ranging sensor 23 pass the first infrared obstacle sensor 31, the lower cylinder 15 drives the support frame 16 to move upward, so that the support frame 44 and the pressing plate 33 move upward as a whole and separate from the book. At this time, the air guide box 22 continues to move toward the book opening area, and the air guide box 22 passes from the bottom of the two support frames 44. When the air guide box 22 and the laser ranging sensor 23 pass the second infrared obstacle sensor 32, the lower cylinder 15 drives the support frame 16 to move downward and reset, so that the support frame 44 and the pressing plate 33 move downward as a whole, and then the pressing plate 33 presses the book pages adsorbed by the air guide box 22 in the book opening area;

[0067] At this point, the page turning process of the book (document) is completely automated, and then the two unfolded pages of the book can be scanned by two scanners 14. By controlling the working number of the scanners 14, single-page scanning and double-page scanning can be achieved;

[0068] After the scanning of the book page is completed, the upper cylinder 6 will move upward again, and then repeat the operation, so that the document can be turned and scanned continuously and automatically.

[0069] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A document automatic page turning scanning device, characterized in that: The workbench (1) comprises a fixing assembly for fixing books on the top of the workbench (1), vertical boards (2) are fixed on both sides of the workbench (1), a horizontal board (3) is fixed between the two vertical boards (2), and scanners (14) for scanning books are installed on both sides of the bottom of the horizontal board (3); A screw rod (12) and a guide rod (13) are arranged between the two vertical plates (2); a forward and reverse motor (7) is installed on the outside of one of the vertical plates (2); a controller (4) is installed on the outside of the other vertical plate (2); the guide rod (13) is fixedly connected to the vertical plates (2); one end of the screw rod (12) passes through one of the vertical plates (2) and is connected to the transmission shaft of the forward and reverse motor (7); the other end of the screw rod (12) is rotatably connected to the other vertical plate (2) via a bearing; The screw rod (12) and the guide rod (13) are provided with a guide block (5) in common, the screw rod (12) is threadedly connected to the guide block (5), the guide rod (13) passes through the guide block (5), an upper cylinder (6) is installed on the top of the guide block (5), the piston rod of the upper cylinder (6) extends to the bottom of the guide block (5) and is connected to a connecting arm (19), a touch block (18) is fixed to the bottom of one side of the connecting arm (19), an air guide pipe (43) is connected to the inner thread of the touch block (18), the top end of the air guide pipe (43) extends to the top of the touch block (18), the bottom end of the air guide pipe (43) extends to the bottom of the touch block (18) and is fixed to an air guide box (22), and a plurality of air inlet holes (42) are opened at the bottom of the air guide box (22); The fixing assembly comprises an L-shaped plate (20), a support plate (29) is fixed on the top of the L-shaped plate (20), a first screw rod (17) is rotatably connected to the middle of the bottom of the L-shaped plate (20) via a bearing, and limiting columns (30) are fixed on both sides of the L-shaped plate (20), the limiting columns (30) pass through the workbench (1), the first screw rod (17) is threadedly connected to the workbench (1), and a hand wheel is installed at the bottom of the first screw rod (17); A book unopened surface pressing mechanism for pressing the unopened surface of the book is provided on a side of the top of the workbench (1) away from the fixing assembly; The book unopened surface pressing mechanism comprises a slide plate (9), the slide plate (9) being mounted on the top of the workbench (1) via a sliding assembly, a movable plate (11) being arranged above the slide plate (9), both sides of the movable plate (11) being penetrated by limit rods (10), the bottom end of the limit rod (10) being fixedly connected to the slide plate (9); Connecting frames (39) are fixed obliquely downward on both sides of the movable plate (11), a shaft (40) is rotatably connected between the connecting frames (39) via bearings, and a plurality of pressing wheels (25) are mounted on the outside of the shaft (40) via bearings; The shaft rod (40) is sleeved with a limiting ring (41) at positions near both ends thereof, a pressing frame (38) is provided on one side of the bottom of the limiting ring (41) tilted downward, and a touch plate (26) is provided on one side of the top of the limiting ring (41) tilted upward; The inner diameter of the limiting ring (41) is consistent with the diameter of the shaft (40), and the limiting ring (41), the pressing frame (38) and the touch plate (26) are all integrated structures; A spring sheet (24) is connected between the touch plate (26) and the movable plate (11); The bottom of the touch block (18) and the top of the touch plate (26) both have arc-shaped rounded transitions.

2. The document automatic page turning scanning device according to claim 1, characterized in that: The sliding assembly comprises two T-shaped rails (8), both of which are fixed on the top of the workbench (1), and a T-shaped slot matching the T-shaped rails (8) is provided inside the slide plate (9), and a locking bolt (21) is connected to the top of the slide plate (9) by means of a thread, and the bottom end of the locking bolt (21) is in contact with the T-shaped rails (8).

3. The document automatic page turning scanning device according to claim 1, characterized in that: A limiting plate (28) is fixed to the top end of the limiting rod (10), and a spring (27) is sleeved on the outside of the limiting rod (10) and located between the limiting plate (28) and the movable plate (11).

4. The document automatic page turning scanning device according to claim 1, characterized in that: The cross-sectional shape of the air guide box (22) is a right-angled trapezoidal structure, and one side of the hypotenuse of the air guide box (22) is close to the clamping wheel (25). A laser distance measuring sensor (23) is installed on one side of the right-angled side of the air guide box (22).

5. The document automatic page turning scanning device according to claim 4, characterized in that: A lower cylinder (15) is installed on the top of the workbench (1) below the support plate (29); a support frame (16) is fixed on the piston rod of the lower cylinder (15); a support frame (44) is fixed on both sides of the support plate (29) at the top of the support frame (16); a movable pressing plate (33) is provided on the top of the support frame (44); One side of the support frame (44) is connected to an external connection plate (34); One side of the pressing plate (33) is connected to an inner connecting plate (35); A second screw rod (36) is threadedly connected to the outer connecting plate (34), and one end of the second screw rod (36) is rotatably connected to the inner connecting plate (35) via a bearing.

6. The document automatic page turning scanning device according to claim 5, characterized in that: A pressure sensor (37) is installed at the bottom of the pressure plate (33), and a first infrared obstacle sensor (31) and a second infrared obstacle sensor (32) are installed on both sides of the support plate (29), respectively.

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