CN110324510B

CN110324510B - Page turning device, page turning method and scanning device

Info

Publication number: CN110324510B
Application number: CN201910644211.1A
Authority: CN
Inventors: 易源霖; 刘巍
Original assignee: Beijing Qianxun Future Technology Co ltd
Current assignee: Beijing Qianxun Future Technology Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2024-08-20
Anticipated expiration: 2039-07-16
Also published as: WO2021008372A1; CN110324510A

Abstract

The embodiment of the disclosure provides a page turning device, a page turning method and a page scanning device. The page turning device is configured to separate a first scan object and a second scan object from each other in a booklet of scan objects by an angle, and includes: a force applying device configured to apply a force to the first scan object to separate the first scan object from a second scan object; a force applying device moving section to which the force applying device is connected, and which is configured to move along a fixed rail, and the fixed rail intersects a plane in which the scanning object is located; and a scanning object moving section configured to be capable of moving the scanning object in a first direction and/or a second direction, wherein the first direction is parallel to a plane in which the scanning object is located, and the second direction is perpendicular to the plane in which the scanning object is located; wherein the scan object moving section moves the scan object to a predetermined position at a timing of starting the page turning operation. The page turning device is simple in structure and high in page turning efficiency.

Description

Page turning device, page turning method and scanning device

Technical Field

The embodiment of the disclosure belongs to the field of scanning, and particularly relates to a page turning device, a page turning method and a scanning device.

Background

With the rapid development of internet technology, learning, working and reading modes are gradually changed from paper mode to electronic mode, and the benefit of electronics is obvious. For example, in the field of electronic books, electronics allows users to read interesting data whenever and wherever possible without carrying heavy books with them and only with one mobile device. In the field of file management, for example, the urgent problem faced by paper files includes storage, preservation and retrieval of paper files, on one hand, the storage of paper files needs to occupy a large amount of space, if the paper files are improperly stored, they are easy to be lost and damaged, and especially under the condition of large number, how to quickly find the required files becomes a great challenge. The electronic file can solve the problems to a great extent, occupies small space, and is easy to store and convenient to search.

However, how to convert objects such as books, archives, etc. into electronic format still faces a great challenge. The existing technology mostly adopts a mode of photographing book files page by page to make the book files electronic, and the page turning process mostly adopts a manual mode, so that the working mode is obviously low in efficiency, and the manual mode has uncertainty and is easy to damage paper.

In recent years, an apparatus capable of automatically turning pages for scanning has appeared, but page turning is a difficult problem in a page turning scanning device, and because of different paper sheets of book files, especially ancient book files in Chen Jiuyuan, many paper sheets are very fragile, and carelessly damage the paper sheets, so that serious loss is caused.

Disclosure of Invention

Accordingly, embodiments of the present disclosure provide a page turning device, a page turning method, and a page scanning device, so as to at least partially solve the problems in the prior art.

According to a first aspect of embodiments of the present disclosure, there is provided a page turning device configured to separate a first scan object and a second scan object from each other in a booklet of scan objects by an angle, the page turning device including:

A force applying device configured to apply a force to the first scan object to separate the first scan object from a second scan object;

a force applying device moving section to which the force applying device is connected, and which is configured to move along a fixed rail, and the fixed rail intersects a plane in which the scanning object is located; and

A scanning object moving section configured to be capable of moving the scanning object in a first direction and/or a second direction, wherein the first direction is parallel to a plane in which the scanning object is located, and the second direction is perpendicular to the plane in which the scanning object is located;

Wherein at a timing of starting the page turning operation, the scan object moving section moves the scan object to a position as follows: the force application means applies a force to the first scan object at a position within a predetermined threshold range from an edge of the first scan object.

According to a specific implementation of the embodiment of the present disclosure, at a timing at which a page turning operation is started, the scan object is moved to a first predetermined position in a first direction, and in a second direction, when a distance of the scan object from a second predetermined position is greater than a predetermined value, the scan object is moved to the second predetermined position.

According to a specific implementation of an embodiment of the present disclosure, the page turning device further includes an anti-bouncing device configured to press the turned scan object after the first scan object and the second scan object are separated by a predetermined angle.

According to a specific implementation manner of the embodiment of the disclosure, the bounce prevention device presses the turned scanning object in a rotary pressing manner, and the turning angle of the bounce prevention device is adjusted according to the number of turned pages and/or the total moving distance of the scanning object in the first direction and/or the second direction.

According to a specific implementation manner of the embodiment of the disclosure, the scanning object is fixed to the scanning object moving part through the clamping device, and the page turning device enables the clamping device to rotate according to the detected size of the book belly and/or the total moving distance of the scanning object in the first direction and/or the second direction.

According to a specific implementation of the embodiment of the present disclosure, the force applying device is rotatable along an axis perpendicular to the first and second directions while the force applying device moving part moves along the fixed rail, and the scan object moving part moves the scan object in the first direction so that the first scan object is not bent during page turning.

According to a specific implementation of the embodiment of the disclosure, the page turning device further includes a position sensor configured such that the page turning action is stopped when the first scan object and the second scan object are separated by an angle reaching a predetermined value.

According to a specific implementation of the embodiment of the present disclosure, the position sensor is a light-sensitive sensor that is blocked by the first scan object at a timing when the page turning operation is started, and when the first scan object and the second scan apart angle reach a predetermined value, the force applying device slides relatively with respect to the first scan object so that the light sensor is not blocked by the first scan object.

According to a second aspect of embodiments of the present disclosure, there is provided a scanning apparatus comprising:

according to the page turning device disclosed in the first aspect of the embodiment of the disclosure;

An image acquisition device configured to image the first scan object and/or the second scan object that have been turned pages, and convert the obtained image into electronic data.

According to a third aspect of embodiments of the present disclosure, there is provided a page turning method for separating a first scan object and a second scan object from among scan objects in a booklet by an angle, the method including:

Moving the scanning object to a preset position in a first direction and/or a second direction, wherein the first direction is parallel to the plane of the scanning object, and the second direction is perpendicular to the plane of the scanning object;

Applying a force to the first scan object via a force applying device that separates the first scan object from a second scan object;

moving the force applying device along a fixed track, wherein the fixed track intersects a plane in which the scan object lies;

Wherein at a timing of starting the page turning operation, the scan object is moved to a position as follows: the force application means applies a force to the first scan object at a position within a predetermined threshold range from an edge of the first scan object.

According to a fourth aspect of embodiments of the present disclosure, there is provided a scanning apparatus comprising:

at least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor to enable the at least one processor to perform a page turning method according to the third aspect of the embodiments of the present disclosure.

According to the page turning device, the page turning method and the page scanning device, the structure is simple, the efficiency is high, the noise is low, and better page turning operation can be achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is a schematic structural view of a page turning device according to an embodiment of the present disclosure;

FIG. 2 is a flow chart of a page turning operation according to an embodiment of the present disclosure;

FIG. 3 is a flow chart of a page turning operation according to an embodiment of the present disclosure;

FIG. 4 is a diagram showing a "belly" occurring during a page-turning operation;

fig. 5 is a diagram showing an arrangement of a position sensor according to an embodiment of the present disclosure;

FIG. 6 is a flow chart of a page turning method according to an embodiment of the present disclosure; and

Fig. 7 is a block diagram of a scanning device according to an embodiment of the present disclosure.

Detailed Description

Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

Other advantages and effects of the present disclosure will become readily apparent to those skilled in the art from the following disclosure, which describes embodiments of the present disclosure by way of specific examples. It will be apparent that the described embodiments are merely some, but not all embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. The features of the following examples and embodiments may be combined with each other without any conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.

It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the disclosure by way of illustration, and only the components related to the disclosure are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

The embodiment of the disclosure provides a page turning method. The page turning method provided in this embodiment may be executed by a computing device, which may be implemented as software, or as a combination of software and hardware, and the computing device may be integrally provided in a server, a terminal device, or the like.

Hereinafter, a technical solution according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, the term "scan object" refers to a carrier on which information can be recorded. The information recorded on the scan object is converted into digital information by a scanning operation of the scanning device. The scanning object includes, for example, plain paper, coated paper, plastic sheet, and the like. Further, although the present disclosure is described in the following description with a sheet of a book as an example of a scanning object, the scanning object may be, for example, a newspaper, a photograph, a ticket, or the like.

In the following description, although the force applying device is described taking the suction cup as an example, the force applied to the scan object to separate the current scan object (first scan object) from the subsequent scan object (second scan object) is not limited to the suction force applied by the suction cup, but may include, for example, one or more of electrostatic suction force, magnetic suction force, bionic suction force. The generated force is not limited to the adsorption force, and may be a pushing force applied to the paper.

First, referring to fig. 1, a page turning apparatus 100 according to an embodiment of the present disclosure is described. In fig. 1, 101 is a suction cup mounting portion, 102 is a clamping mechanism, 103 is a scanning support platform, 104 is a horizontal moving platform, 105 is a frame, 106 is a lifting mechanism, 107 is a scanning object, 108 is a page turning module, 109 is a left side bounce prevention mechanism, 110 is a page pressing mechanism, and 111 is a right side bounce prevention mechanism.

In the embodiment of the present disclosure, the left-right direction in fig. 1 is defined as an x-direction, the up-down direction is defined as a y-direction, and a direction perpendicular to the xy-plane is defined as a z-direction.

As shown in fig. 1, the horizontal movement platform 104 is mounted on the bottom plate of the frame 105, and the horizontal movement platform 104 can move in the x-direction, for example, along a guide rail. In addition, a lifting mechanism 106 is fixedly installed on the horizontal moving platform 104, and the scanning support platform 103 is installed on the lifting mechanism 106. Thus, the scanning support platform 103 can be moved in the y-direction by the lifting mechanism 106. In addition, the scanning support platform 103 may move in the x-direction following the horizontal movement platform 104. As such, the scanning support platform 103 according to embodiments of the present disclosure is capable of movement in both x-and y-directions.

In addition, a page turning module 108 is mounted on the frame 105, the page turning module 108 is connected with the sucker mounting part 101 provided with a sucker, and the page turning module 108 can reciprocate along a guide rail arranged on the frame 105.

In addition, a left side bouncing prevention mechanism 109 and a right side bouncing prevention mechanism 111 are mounted on the scanning support platform 103, and a page pressing mechanism 110 is also mounted on the chassis 105.

At the time of performing the page turning operation, the scan object 107 is gripped with the gripping mechanism 102, and the horizontal moving platform 104 is moved rightward so that the scan object 107 is moved to a predetermined position. Further, the page pressing mechanism 110 is operated to rotate the page pressing robot to a predetermined position, and then the lifting mechanism 106 is operated to push the scan object 107 to move upward until it is stopped after contacting the page pressing robot. In this way, the scan object 107 can be moved to a predetermined position in the x-direction and the y-direction.

Next, a page turning process for a harder paper and a softer paper is described with reference to fig. 2 and 3.

With reference to fig. 2, a page turning process for a stiffer (incapable of bending or not allowing bending) sheet is described. For thicker paper, the page turning process is as follows because it cannot be folded:

s201: the page turning module 108 acts to drive the sucker mounting part 101 to move downwards until the sucker on the sucker mounting part 101 contacts the scanned object 107 and then stops.

S202: the page pressing mechanism 110 is actuated so that the page pressing robot is stopped after being moved up to a predetermined position to be away from the scan object 107. Then, the sucker mounting part 101, the page turning module 104 and the horizontal moving platform 104 act in a coordinated manner, so that page turning action is realized until an image acquisition position is reached.

Specifically, during the page turning process, the page turning module 104 (suction cup) moves along the fixed rail, while the suction cup can rotate along the axis of the z direction, and the horizontal moving platform 104 moves the scan object in the x direction, so that the paper is not bent during the page turning process. Rotation of the suction cup along the z-axis can be achieved, for example, by hinging the suction cup mounting portion 101 to the page turning module 104.

S203: the platen press mechanism acts 110, and the platen press robot moves downward until it contacts the scan object 107 and then stops. After the image acquisition is completed, the suction cup loosens the page that has been picked up, and at the same time, the right side bounce prevention mechanism 111 is actuated, and the right side page pressing lever moves leftward, pushing the page to the left side of the scan object 107 and pressing it.

S204: the left side bounce prevention mechanism 109 is operated, the left side page bar presses the left turned page, and then the right side bounce prevention mechanism 111 is operated, and the right side page bar returns to the initial position. Thus, the page turning operation of one page of scanned data is completed.

With reference to fig. 3, a page turning process for a softer (bendable) sheet is described. Because the softer paper can be folded, the page turning process is as follows:

S301: the page turning module 108 acts to drive the sucker mounting part 101 to move downwards until the sucker on the sucker mounting part 101 contacts the scanned object 107 and then stops.

S302: the page pressing mechanism 110 is actuated so that the page pressing robot is stopped after being moved up to a predetermined position to be away from the scan object 107. Subsequently, the page turning module 108 acts to drive the picked page up to move up along the module to the image capturing position.

S303: the platen press mechanism acts 110, and the platen press robot moves downward until it contacts the scan object 107 and then stops. After the image acquisition is completed, the suction cup loosens the page that has been picked up, and at the same time, the right side bounce prevention mechanism 111 is actuated, and the right side page pressing lever moves leftward, pushing the page to the left side of the scan object 107 and pressing it.

S304: the left side bounce prevention mechanism 109 is operated, the left side page bar presses the left turned page, and then the right side bounce prevention mechanism 111 is operated, and the right side page bar returns to the initial position. Thus, the page turning operation of one page of scanned data is completed.

In an embodiment according to the present disclosure, the page turning apparatus 100 is configured to separate a first scan object and a second scan object from each other among the scan objects 107 in a album by an angle.

The scanned object in a booklet may be a book that is in a booklet state itself, for example, a booklet book. Alternatively, the scan object in a booklet may be a scan object which is dispersed itself, but which is brought into a booklet state by holding one side thereof by the holding mechanism 102.

In an embodiment of the present disclosure, the first scan object may be a page that is currently required to be flipped open, and the second scan object may be a page adjacent to the first scan object.

In addition, the page turning apparatus 100 separates the first scan object and the second scan object by an angle such as 60 °,90 °,110 °, or other suitable angle through the operations described above, to facilitate the subsequent imaging operation.

The page turning device 100 according to the embodiment of the present disclosure includes a suction cup as an example of the force applying device. Specifically, the suction cup is mounted on the suction cup mounting portion 101. During the page turning operation, the suction cup sucks the first scan object to apply a force to the first scan object to separate the first scan object from the second scan object. In an embodiment of the present disclosure, the force separating the first scan object from the second scan object is an adsorption force generated by the suction cup.

In addition, the page turning device 110 according to the embodiment of the present disclosure further includes a page turning module 108 as an example of a force applying device moving part, the page turning module 108 moving along a fixed rail. Specifically, in the present exemplary embodiment, the fixed rail is provided on the gantry 105 and forms a predetermined angle with respect to the plane in which the scan object 107 is located, for example, 35 °,45 °, or other suitable angle.

In the present exemplary embodiment, the suction cup is connected to the page turning module 108 via the suction cup mounting portion 101, so that the suction cup is driven to move along the fixed rail during the movement of the page turning module 108 along the fixed rail. As described above, since the fixed track intersects the plane in which the scan objects are located, when the page turning module 108 drives the suction cup to reciprocate along the fixed track, the first scan object and the second scan object absorbed by the suction cup can be separated, and the separation angle can be controlled by the movement amount of the page turning module 108.

In the embodiment of the present disclosure, by mounting the page turning module 108 on the frame 105, and the page turning module 108 is provided to move along a fixed track, it is possible to improve the stability of the entire scanning apparatus. Specifically, during the scanning process, for each page-turning operation, the page-turning module 108 needs to make a round trip to turn on the first scan object. For high-speed scanning, the moving stroke of the page turning module 108 is long, and the motor speed for driving the page turning module 108 is high, so that the stability of the scanning device can be improved to the greatest extent by arranging the fixed track, the noise in the scanning process is reduced, and the driving complexity of the motor for driving the page turning module 108 is reduced.

In the case where the page turning module 108 moves the suction cup along the fixed rail, the position of the suction cup is fixed for a predetermined position on the rail. Thus, as the page turning process proceeds, the number of turned pages increases and the number of non-turned pages decreases, resulting in the page turning module 108 needing to move down a longer distance to contact the scan object 107. In this case, if the scan object is kept stationary during the page turning, the position where the suction cup contacts the first scan object may be continuously near the edge of the page, and eventually may not contact the page (the suction cup is moved out of the range of the scan object).

Accordingly, in the embodiment of the present disclosure, the page turning apparatus 100 further includes a scan object moving section configured by the horizontal moving platform 104 and the elevating mechanism 106 shown in fig. 1. Specifically, the horizontal movement platform 104 is mounted on the bottom plate of the frame 105, and the horizontal movement platform 104 can move along a guide rail in the x direction of fig. 1. In addition, the lifting mechanism 106 is fixedly installed on the horizontal moving platform 104, and the scanning support platform 103 is installed on the lifting mechanism 106, so that the scanning support platform 103 can move in the y direction in fig. 1 under the action of the lifting mechanism 106. In this way, the scan object 107 can move in the first direction (x direction, direction parallel to the plane of the scan object 107) and the second direction (y direction, direction perpendicular to the plane of the scan object 107).

In the process of turning pages, the page turning module 108 drives the sucker to move downwards, so that the sucker contacts with the first scanning object. In an embodiment of the present disclosure, a contact position of the suction cup with the first scan object is required to be at a position near an edge of the first scan object so that the first scan object can be effectively separated from the second scan object. Experiments show that when the contact position of the sucker and the first scanning object is within 6cm from the edge of the page, the separation success rate of the first scanning object and the second scanning object can reach more than 96%.

Therefore, in the embodiment of the present disclosure, at the timing of starting the page turning operation, the scan object moving section (the horizontal moving platform 104 and the lifting mechanism 106) moves the scan object 107 to a position such that the position where the suction force of the suction cup acts is within the predetermined threshold range from the edge of the first scan object. The predetermined threshold may be, for example, 10cm,8cm,6cm,4cm, or other suitable value, but in embodiments of the present disclosure, the predetermined threshold is set to 6cm, which can ensure a separation success rate of 96% or more.

As described above, the position of the suction cup is determined for a fixed position of the page turning module 108 on the fixed rail. Therefore, the contact position of the suction cup with the first scan object can be ensured by moving the scan object 107 by the horizontal movement platform 104 and the elevating mechanism 106. Specifically, in the case where the position in the x direction is fixed, moving the scan object 107 in the +y direction can increase the distance from the page edge, and moving the scan object 107 in the-y direction can decrease the distance from the page edge. Further, in the case where the position in the y direction is fixed, moving the scan object 107 in the +x direction can increase the distance from the page edge, and moving the scan object 107 in the-x direction can decrease the distance from the page edge.

In an embodiment of the present disclosure, the page turning module 108 is arranged to move in one direction and the scan object is arranged to move in two degrees of freedom, which is particularly advantageous for improving the stability and efficiency of the scanning device. This is because the movement amount of the scan object 107 is small during the page turning, and the movement rate is low compared to the page turning module 108, so that it is possible to have enough time to move the scan object 107 in two directions (x-direction and y-direction). Thus, the time required for moving the page turning module 108 is reduced, the stability of the scanning device can be ensured to the greatest extent, and the noise generated when the motor is driven is reduced.

It should be understood that although the above describes moving the scan object 107 in two directions (x-direction and y-direction) to control the position of the suction force of the suction cup to be within a predetermined threshold range from the edge of the first scan object, the present invention is not limited thereto. The scanning apparatus according to the embodiment of the present disclosure may also move the scan object 107 only in the x-direction or the y-direction to achieve the above-described effect. Specifically, as the page turning process proceeds, the scan object 107 may be moved only in the +x direction. Alternatively, the scan object may be moved only in the +y direction. This can achieve the same effect of controlling the position of the suction force of the suction cup to be within a predetermined threshold range from the edge of the first scan object. According to a specific implementation of an embodiment of the present disclosure, at the timing of starting the page turning operation, the scan object 107 is moved to a first predetermined position in the x direction. That is, for each page turning operation, the scan object 107 is moved to a fixed position in the x direction at the start of page turning. In this way, on one hand, the difficulty of control is reduced, and on the other hand, the contact position of the sucker and the current page can be ensured only by ensuring the position of the scanned object 107 in the y direction.

In the embodiment of the present disclosure, it is not necessary to move the scan object 107 to a predetermined position in the y direction every time, because as the page turning process proceeds, the contact position of the suction cup with the first scan object is moved toward the page edge, and thus the success rate of page separation can be improved. Thus, in the embodiment of the present disclosure, the scan object 107 is moved to the second predetermined position only when the distance of the first scan object of the scan object 107 from the predetermined position in the y direction is greater than a predetermined value.

The predetermined value may be determined based on a threshold of a contact position of the suction cup with the first scan object from the edge of the page and an angle of the fixed rail with the scan object 107. For example, when the distance of the first scanning object from the predetermined position in the y direction is the predetermined value, the suction position of the suction cup is just at the edge position of the first scanning object. In this way, by moving the scan object 107 stepwise rather than continuously, the control amount of the scan object 107 is further reduced.

According to one specific implementation of the disclosed embodiment, the page turning device 100 includes bounce prevention devices 109 and 111, and the left bounce prevention mechanism 109 and the right bounce prevention mechanism 111 press the turned scan object after the first scan object and the second scan object are separated by a predetermined angle (see the foregoing description for specific operations).

In the embodiment according to the present disclosure, the bounce prevention devices 109 and 111 are disposed at one side of the scanning device, in particular, the bounce prevention devices 109 and 111 are disposed at one side remote from the operator's operation, thereby preventing the bounce prevention devices 109 and 111 from interfering with the operator's operation.

According to a specific implementation of the embodiment of the present disclosure, the bounce prevention devices 109 and 111 press the turned scan object by means of a rotary press, and the rotation angles of the bounce prevention devices 109 and 111 are adjusted according to the number of turned pages of the scan object 107 or the total moving distance in the y direction, the moving distance in the x direction, or the total moving distance in the y direction. In this case, the number of pages turned, the total moving distance in the x or y direction corresponds to the thickness of the page turned. In the present exemplary embodiment, the moving distance in the x direction refers to a distance from a predetermined position in the x direction, and the total moving distance in the y direction refers to a total moving amount of the scan object in the y direction.

Specifically, as the page turning process proceeds, the number of pages that have been turned increases, the thickness increases, and thus the rotation angle of the bounce prevention mechanisms 409 and 411 needs to be reduced. According to one embodiment, the scanning device may count the number of pages that have been turned, while for a particular type of paper, the thickness is substantially uniform, so that the number of pages that have been turned corresponds to the thickness of the pages that have been turned. Therefore, the rotating angle of the rebound prevention device can be directly adjusted according to the number of the turned pages.

According to another embodiment, the adjustment amount of the rotation angle of the bounce prevention device is related to the total movement amount of the scan object 107 in the y direction, which in the embodiment of the present disclosure indicates the driving amount of the lifting mechanism 106 in the y direction and corresponds to the number of pages and thickness of the turned pages, so that the rotation angle of the bounce prevention device can be adjusted indirectly according to the total movement distance of the scan object in the second direction. This indirect approach is particularly advantageous because the total movement of the scan object in the y-direction can be readily obtained by the number of pulses of the motor driving the lifting mechanism 106.

According to another embodiment, in case the scan object is only movable in the x-direction, in order to achieve that the suction cup position is within a predetermined threshold range from the page edge, the scan object needs to be moved in the x-direction according to the thickness it has turned pages. That is, in this case, the page turning device adjusts the rotation angle of the bounce prevention device according to the moving distance in the first direction (x direction).

In the above, the number of pages turned, the total moving distance of the scan object in the first direction and the second direction are all associated with the thickness of the turned pages.

According to a specific implementation of an embodiment of the present disclosure, the scan object 107 is fixed to the scan support platform 103 by the clamping mechanism 102. In the embodiment according to the present disclosure, the holding mechanism 102 is rotated according to the total movement amount of the scanning object 107 in the y direction.

Specifically, as shown in fig. 4, as the page turning operation proceeds, the turned page may form a bump (belly) at a position close to the holding portion, which may cause bending of the page, thereby affecting the subsequent imaging process, particularly in the case where the scanned object 107 is thick, even in the case where the page cannot be turned. Thus, in the embodiment according to the present disclosure, as the scan object 107 moves upward (the page turning process proceeds), the holding mechanism 102 can be rotated to reduce the belly. During the page turning process as shown in fig. 4, the clamping mechanism 102 can be rotated counterclockwise, thereby reducing the belly.

According to one embodiment, the page turning device directly rotates the clamping mechanism or adjusts the rotation amount of the holding mechanism 102 according to the size of the belly. The size of the belly is generally related to the radius of curvature of the turned page, and thus, the size of the belly can be obtained by detecting the radius of curvature of the turned page.

According to another embodiment, the gripping mechanism 102 may be rotated according to the total moving distance of the scanning object in the second direction, that is, the rotation amount of the gripping mechanism 102 is correlated with the total moving amount of the scanning object 107 in the vertical direction. Specifically, the larger the total movement amount of the scanning object 107 in the vertical direction, the larger the rotation amount of the holding mechanism 102, so that generation of a belly (bulge) can be reduced.

According to a further embodiment, in case the scanning object is only movable in the x-direction, in order to achieve that the suction cup position is within a predetermined threshold range from the page edge, the scanning object needs to be moved in the x-direction according to the thickness it has turned pages. That is, in this case, the page turning device rotates the holding device according to the moving distance in the first direction (x direction).

In the above description, the size of the book belly and the total moving distance of the scanning object in the first direction and the second direction are all related to the thickness of the turned pages.

According to a specific implementation of the embodiment of the present disclosure, the scan object moving part moves the scan object in the x direction in fig. 1 while the force applying device moving part moves along the fixed rail, and the force applying device (suction cup) can rotate along the axis of the z direction so that the first scan object is not bent during the page turning.

For softer sheets, it can bend during the page turning process to increase page turning efficiency, however, for thicker sheets it cannot bend, so the cooperative motion of the horizontal moving platform 104 and suction cups is required so that the sheet does not bend. Specifically, in the embodiment of the present disclosure, the horizontal moving platform 104 is movable in the x-direction, and the suction cup mounting portion 101 is rotatably mounted on the page turning module 108 so that the force application direction of the suction cup can be changed during the page turning. That is, in this case, the sheet rotates around the spine portion without bending.

In other words, the movement of the page turning module 108 and the horizontal moving platform 104 can be controlled so that the turned page is not bent during the page turning process. Such control is particularly useful for hard-shelled books. Alternatively, for softer sheets, the horizontal movement platform 104 may not move during the page turning process, and the page turning module 108 moves directly along the fixed guide. This, while bending the page, can improve the efficiency of turning the page, which is particularly advantageous for softer sheets.

According to a specific implementation of the embodiment of the present disclosure, the page turning device 100 further includes a position sensor configured such that the page turning action is stopped when the first scan object and the second scan object are separated by an angle reaching a predetermined value.

During the page turning process, the first scan object and the second scan object need to be separated by a predetermined angle. In an embodiment of the present disclosure, the control of the position is achieved by a position sensor. As shown in fig. 5, the position sensor 502 may be a photo sensor provided on the suction cup mounting portion 503.

A photo sensor generally refers to a device that can sense light energy from ultraviolet light to infrared light and convert the light energy into an electrical signal. The light sensor is mainly composed of photosensitive elements, and is mainly divided into an ambient light sensor, an infrared light sensor, a solar light sensor, an ultraviolet light sensor, and the like.

Further, as shown in fig. 5, the photo sensor is installed at a position closer to the edge of the scan object 107 than the suction cup 501, and when the suction cup 501 is in contact with the first scan object at the start of the page turning operation, the photo sensor is set to be shielded by the first scan object, that is, the photo sensor is within the range of the scan object at the start of the page turning operation.

As the page turning process proceeds, the suction pad 501 moves in an obliquely upward direction while sucking the first scan object, so that the angle between the first scan object and the second scan object is continuously increased, and when the angle therebetween reaches a predetermined value, the first scan object is flattened at this time. When the suction cup 501 continues to drive the first scanning object to move, the suction cup 501 will slide relatively with respect to the first scanning object, so that the light sensor leaks from the first scanning object, i.e. is not blocked by the first scanning object.

In this case, the light sensor transmits a signal to stop driving of the motor driving the page turning module 108 to move, thereby realizing that the angle between the first scan object and the second scan object is maintained at a predetermined value, and ensuring flatness of the first scan object and the second scan object for facilitating the subsequent imaging operation.

It is particularly advantageous to arrange the position sensor 502 in such a way that it can ensure that it is paged into position for different sizes of scanned objects 107. For example, the distance that the flat page turning module needs to move is different for A4 size sheets and A3 size sheets, in this way it is ensured that any size sheet can be moved to the proper position and that the angle of separation is approximately equal for the same size sheet.

Although the above is described as a position sensor by way of example of a light-sensing sensor, other types of sensors are possible. For example, the position sensor may be a laser diode or the like as long as it can check to determine whether or not the angle of separation of the first scan object from the second scan object reaches a prescribed value.

Referring to fig. 6, an embodiment of the present disclosure further provides a page turning method corresponding to the page turning apparatus described above, for separating a first scan object and a second scan object from each other among scan objects in a booklet by an angle. The page turning method comprises the following steps:

S601: and moving the scanning object to a preset position in a first direction and a second direction, wherein the first direction is parallel to the plane of the scanning object, and the second direction is perpendicular to the plane of the scanning object.

S602: a force is applied to the first scan object via a force application device that separates the first scan object from a second scan object.

S603: such that the force applying means moves along a fixed track, wherein the fixed track intersects a plane in which the scan object lies.

In the embodiment according to the present disclosure, at the timing of starting the page turning operation, the scan object is moved to the following position: the force application means applies a force to the first scan object at a position within a predetermined threshold range from an edge of the first scan object.

Since the page turning method according to the embodiment of the present disclosure has been described above with reference to the page turning apparatus 100, a detailed description thereof will be omitted.

The embodiment of the disclosure also provides a scanning device, which comprises:

a page turning device as described above;

at least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the page turning method of the foregoing method embodiments.

Referring now to fig. 7, a block diagram of a scanning apparatus 700 according to an embodiment of the present disclosure is described. As shown in fig. 7, a scanning device 700 according to an embodiment of the present disclosure includes a page turning device 710 and an imaging device 720. Further, the scanning apparatus 700 according to the present disclosure further includes a controller 200, and the controller 200 includes a Central Processing Unit (CPU) 201 as a control unit.

Further, the controller 200 includes a Read Only Memory (ROM) 202, a Random Access Memory (RAM) 203, and a Hard Disk Drive (HDD) 204. In addition, the controller 200 includes an interface 205. The ROM 202, RAM 203, HDD 204, and interface 205 are connected to the CPU 201 via a bus. A basic program for causing the CPU 201 to run is stored in the ROM 202. The RAM 203 is a storage device in which various data such as the calculation processing result of the CPU 201 is temporarily stored. The HDD 204 is a storage device in which the result of the calculation processing of the CPU 201, image data acquired by the imaging apparatus 720, and the like are stored, and is also used to record therein a program for causing the CPU 201 to execute various controls.

The CPU201 controls the operations of the page turning device 710 and the image forming device 720 by according to the program recorded in the HDD 204.

It should be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the disclosure are intended to be covered by the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A page turning apparatus configured to separate a first scan object and a second scan object from each other in a booklet, comprising:

wherein at a timing of starting the page turning operation, the scan object moving section moves the scan object to a position as follows: the force application means applies a force to the first scan object at a position within a predetermined threshold range from an edge of the first scan object;

The force applying device is rotatable along an axis perpendicular to the first and second directions while the force applying device moving part moves along the fixed rail, and the scan object moving part moves the scan object in the first direction so that the first scan object is not bent during page turning.

2. The page turning device according to claim 1, wherein the scan object is moved to a first predetermined position in a first direction at a timing at which a page turning operation is started, and the scan object is moved to a second predetermined position when a distance of the scan object from the second predetermined position is greater than a predetermined value in a second direction.

3. The page turning device of claim 1, further comprising an anti-bounce device configured to press the turned scan object after the first scan object and the second scan object are separated by a predetermined angle.

4. A page turning device according to claim 3, wherein the bouncing prevention device presses the turned scanned object by means of a rotary press, and the page turning device adjusts the angle of rotation of the bouncing prevention device in dependence of the number of turned pages and/or the total distance of movement of the scanned object in the first direction and/or the second direction.

5. The page turning device according to claim 1, wherein the scan object is fixed to the scan object moving section by a holding device, and the page turning device rotates the holding device according to the detected size of the book block and/or the total moving distance of the scan object in the first direction and/or the second direction.

6. The page turning device of claim 1, further comprising a position sensor configured to stop the page turning action when the first scan object is separated from the second scan object by an angle that reaches a predetermined value.

7. The page turning device according to claim 6, wherein the position sensor is a light-sensitive sensor that is shielded by the first scanning object at a timing at which a page turning operation is started, and the force applying means slides relatively with respect to the first scanning object so that the light-sensitive sensor is not shielded by the first scanning object when the first scanning object and the second scanning angle reach a predetermined value.

8. A scanning device, comprising: the page turning device according to any one of claims 1 to 7; an image acquisition device configured to image the first scan object and/or the second scan object that have been turned pages, and convert the obtained image into electronic data.

9. A method of turning pages, the method being for separating a first scan object and a second scan object of a booklet of scan objects by an angle, the method being implemented with a page turning apparatus as claimed in any one of claims 1 to 7, the method comprising: