Book sorting equipment

Abstract

The invention discloses a book sorting device, belonging to the field of book sorting, comprising a protection box, at least one level of sorting line, a book collecting mechanism, a box taking mechanism and a controller; by pressing and protecting the returned books in the protection box, the books are prevented from being folded or damaged during the transportation and sorting process; in addition, an opening is provided on one side of the box body, and an iron material is provided on one side, so as to facilitate the subsequent separation of the books and the box body; furthermore, the whole sorting device has a simple structure and a low cost, and cooperates well with the book returning device and the subsequent equipment, and the front and rear information are shared, so as to reduce the investment in equipment; after the sorting is completed, the books are neatly arranged for easy storage.

Description

Technical Field

[0001] The invention relates to the technical field of book management and sorting, and in particular to a book sorting device. Background Art

[0002] The existing book sorting equipment is: after the books are returned, they are sorted once, such as being transported to a specific classification port by an AGV trolley, and then unloaded into the classification port, which will cause the books themselves to be loose when unloaded, the internal pages to fold, and the collisions between books and books, and between books and channels, resulting in the pages of books bulging and folding; there are also devices in the prior art that transport books or letters by setting a box body / box body, but the existing equipment occupies a large space, the box body is closed and has rails, and the books inside are unloaded horizontally after being transported for a distance, and there is also the problem of books being stacked and damaged; the book sorting equipment in the prior art is complicated, expensive, and usually the upstream equipment and downstream equipment are not compatible enough (which will lead to the reuse of some institutions and increase costs), and often realize a small independent function alone, such as after a rough screening, the books are stacked into a messy small pile, which needs to be sorted again, and manual participation is required for the sorting again. Summary of the invention

[0003] The present invention provides a book sorting device, comprising a protection box, at least one level of sorting line, a book collecting mechanism, a box taking mechanism and a controller.

[0004] The protection box is used to transport and protect books, and comprises a protection box body and a cover. The protection box body is a dustpan-shaped structure having a bottom edge and three side edges. An elastic contact layer is arranged on the inner wall of the side edge of the protection box body and / or an elastic contact layer is arranged on the side wall of the cover. The protection box body and the cover are relatively fixed by being squeezed by the elastic contact layer. A resistance layer is arranged on the upper surface of the bottom edge of the protection box body and / or the lower surface of the cover, and an iron material is arranged on the side opposite to the opening side of the protection box.

[0005] The at least one level sorting line includes a U-shaped sorting line, the U-shaped sorting line is composed of four groups of conveyor belts, and a plurality of book return devices are arranged on the outer side of the U-shaped sorting line;

[0006] The book collecting mechanism comprises a horizontal transmission mechanism, a lifting cylinder and a book collecting frame. The moving part of the horizontal transmission mechanism is fixedly connected to a flat plate, on which at least one book collecting frame is arranged. One side of the bottom edge of the book collecting frame is rotatably connected to the flat plate through an elastic bracket, and the other side is rotatably connected to the output end of the lifting cylinder. The cylinder body of the lifting cylinder is fixed to the flat plate.

[0007] The box taking mechanism comprises a magnetic sucker, which can suck up the protection box to separate the protection box and the book;

[0008] The controller is used to collect information, process information and control the operation of various mechanisms in the sorting equipment.

[0009] Furthermore, the material of the resistance layer may be one or more of cloth, resin and rubber.

[0010] Furthermore, the elastic contact layer is an array of elastic protrusions.

[0011] Furthermore, a first guide slide is provided between the book return device and the sorting line, which can adjust the directions of the books and the protection boxes to be parallel to the transmission direction of the conveyor belt, and a first sensor is provided at the outlet end of the first guide slide.

[0012] Furthermore, a second sensor and a book pushing mechanism are provided at the end of the upper conveyor belt of the U-shaped sorting line on the side opposite to the adjacent lower conveyor belt. The second sensor is used to detect the presence of books / protection boxes, and the book pushing mechanism is used to push books / protection boxes onto the lower conveyor belt.

[0013] Furthermore, a third sensor and a book pushing mechanism are provided at each sorting station of the “U”-shaped sorting line.

[0014] Furthermore, the box taking mechanism also includes an avoidance drive mechanism and a box taking cylinder, the magnetic suction cup is fixed to the moving end of the box taking cylinder, and the cylinder body of the box taking cylinder is fixed to the moving end of the avoidance drive mechanism.

[0015] Furthermore, the operation steps of the sorting device are as follows:

[0016] The book return device transmits information related to book classification and location information of the book return device used for book return to the controller;

[0017] The controller analyzes the sorting stations of books / protection boxes on each level of sorting lines, gives the time required for the books to arrive at the sorting stations, and gives the estimated time period for the books to arrive at the corresponding sorting stations;

[0018] The first sensor detects the time when the book / protection box enters the sorting line of the sorting device and starts timing;

[0019] When the third sensor of the corresponding sorting station detects the book / protection box within the expected time period, the book pushing mechanism of the corresponding sorting station will push the book / protection box into the next-level sorting line or book collecting mechanism;

[0020] After passing through one or more levels of sorting lines, the books are pushed into the book collection mechanism;

[0021] When a certain number of books / protection boxes are placed in the book collecting frame of the book collecting mechanism, the controller controls the coil in the box taking mechanism to be energized to absorb the protection box and complete the box taking action.

[0022] The beneficial effects of the present invention are as follows: the book sorting device disclosed in the present invention prevents the books from being folded or damaged during the transportation and sorting process by pressing and protecting the returned books (keeping the books in the protection box by surface friction during transportation); the box body exists independently and does not require tracks, so it is flexible to use and maintain; in addition, an opening is provided on one side of the box body, and iron material is provided on the other side, so that it is convenient to separate the subsequent books from the box body; furthermore, the entire sorting device has a simple structure and low cost, and cooperates well with the book return device and subsequent equipment, and information is shared before and after, reducing the investment in equipment, and after the sorting is completed, the books are neatly arranged for easy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments are briefly introduced below.

[0024] Figure 1 is a schematic diagram of a protective box body and a cover;

[0025] Figure 2 yes Figure 1 A schematic diagram of the top view of the structure of the middle protection box 10 (containing the book a);

[0026] Figure 3 1 is a schematic diagram of the overall structure of the book sorting device provided by the present invention (top view);

[0027] Figure 4 This is a configuration method of the second guide slide plate 8;

[0028] Figure 5 This is another arrangement of the second guide slide plate 8;

[0029] Figure 6 yes Figure 5 Schematic diagram of top view;

[0030] Figure 7 is a fully loaded schematic diagram of the book collecting mechanism 2;

[0031] Figure 8 It is a schematic diagram of the book collection organization 2 collecting books;

[0032] Fig. 9 It is a structural schematic diagram of the box taking mechanism 3. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] The book sorting device disclosed in the present invention mainly comprises a protection box, at least one level of sorting line, a book collecting mechanism 2, a box taking mechanism 3 and a controller 4.

[0035] like Figure 1-2 As shown, the protective box can protect books from being folded and damaged during transportation in the sorting line. It includes a protective box body 10 and a cover 101. The protective box body 10 is a dustpan-shaped structure with a bottom edge and three side edges. When the cover 101 is pressed into the protective box body, the entire box is a horizontal barrel-shaped structure with an open side.

[0036] A resistance layer 102 is laid on the bottom edge of the protective box body 10. The resistance layer 102 will form a large moving resistance (friction force) for the book a placed thereon to prevent it from slipping out of the box during transportation. The resistance layer 102 can be made of one or more materials such as cloth (especially flannel), resin, rubber, etc. The laying method of the above-mentioned laying can be reasonably selected according to the material of the protective box body and the material of the selected resistance layer, for example, by screwing, gluing, sewing, etc.

[0037] Further, such as Figure 1 As shown, elastic contact layers 103 are provided on the inner walls of two opposite sides of the protective box body 10. When the cover 101 is pressed into the box body, the elastic contact layer 103 will provide sufficient fixing force to the cover 101 due to being squeezed, so as to keep the cover in its predetermined position and reduce the alignment requirements of the two when the cover 101 is pressed into the box body. Preferably, the elastic contact layer 103 is configured as an array of elastic protrusions (the drawings show flat elastic protrusions, and may also be hemispherical protrusions). In addition, the elastic contact layer 103 is preferably made of elastic materials such as resin and / or rubber.

[0038] like Figure 2 As shown, an iron material 104 is provided on the side opposite to the opening side of the protection box. The aforementioned method of providing the iron material can be fixing (bolting, bonding) or clamping an iron sheet (the iron sheet can be one piece or multiple pieces scattered), or the material of the entire side is made of iron, or the material of the entire protection box body is made of iron. The iron material is used here for the purpose of cooperating with the box taking mechanism 3 later.

[0039] Generally speaking, the height of the interior of the protective box should be higher than the thickness of the thickest book in the collection, but it is not ruled out that the height of the interior of the protective box is higher than the thickness of the vast majority of books in the collection. For a very small number of books, separate arrangements will be made when returning them.

[0040] The cover 101 at least includes a cover body 1011. In addition, in order to increase the friction of the book in the protective box, a resistance layer 1012 can be laid on the lower side of the cover. As mentioned above, the resistance layer 1012 can be made of cloth (especially velvet), resin, rubber and other materials. When resin or rubber materials are selected, it is preferred to adopt an array of protrusions.

[0041] In addition, in order to further reduce the alignment requirements between the cover and the box body, an elastic contact layer 1013 may be provided on the side of the cover 101. When the elastic contact layer 103 provided on the protective box body 10 is a flat protrusion, the elastic contact layer 1013 provided on the side of the cover 101 preferably includes an arc-shaped protrusion structure, for example, a hemispherical protrusion, a semi-cylindrical protrusion with a semicircular cross section, and accordingly, when the elastic contact layer 103 provided on the protective box body 10 is an arc-shaped protrusion, the elastic contact layer 1013 provided on the side of the cover 101 is preferably a flat protrusion.

[0042] It is easy to understand that in other embodiments, the elastic contact layer is not provided on the inner wall of the side of the protective box body, but only on the side of the cover, and the two can also be relatively fixed by being squeezed by the elastic contact layer.

[0043] The protective box body 10 and the cover 101 of the protective box described above will be relatively positioned and pressed together in a book return device. Since the book return device is not the content claimed for protection in this application, it will not be described in detail here. If you need to know more, you can refer to the application documents of the same period.

[0044] See attached Figure 3 , book a / protection box (ie book a and protection box) comes out of the book return device 11 and enters the first-level sorting line 1 through the transmission line b. The transmission line b can use a pulley / conveyor belt mechanism.

[0045] In this application, a first-level sorting line means a transport line that performs a sorting according to a standard, for example, sorting is performed according to the weight of the books, and books of different weight ranges are sorted to different exits, or sorting is performed according to the height. In the embodiment, sorting is performed according to the Chinese Book Classification Number, whether it belongs to Part A of "Marxism, Leninism, Mao Zedong Thought, and Deng Xiaoping Theory" or Part B of "Philosophy and Religion". According to this principle, the books are divided into 22 parts (an "other" part can also be added for the bottom line). This is the first-level sorting. Corresponding to the equipment, it is said that the equipment contains a first-level sorting line; if the books in Part A are further divided, whether they belong to A1 of "Works of Marx and Engels" or A2 of "Works of Lenin", and then the books belonging to Part A are sorted to A1-A8, this is another level of sorting. For the entire book sorting equipment, it is equipped with two-level sorting lines.

[0046] The book sorting device in the embodiment has three levels of sorting lines, which are respectively indicated by dashed lines.

[0047] In the embodiment, sorting is performed according to the Chinese book classification number, so the following description will be based on this (for example, correspondingly, the information obtained in the book return device needs to include the book classification number, and the book return device transmits this information to the book sorting device, and if classification according to weight is required, then the book return device needs to obtain the weight information of the book and transmit this information to the book sorting device), but this cannot be regarded as a limitation on the sorting device.

[0048] The first-level sorting line 1 is a "U"-shaped sorting line, consisting of four groups of conveyor belts, each group of conveyor belts constitutes one side of the "U". Multiple book return devices are arranged on the outer side of the "U"-shaped sorting line. Books / protective boxes returned to the library from the book return devices fall into the first-level sorting line 1 through the transmission line b. The upper surface of the transmission line b is higher than the upper surface of the first-level sorting line 1. In order to make the book / protection box fall into the first-level sorting line 1 and be basically horizontal (that is, the side of the protection box is parallel to the transmission direction of the conveyor belt) and follow the conveyor belt to be transferred downstream, a first guide slide 5 is set on the side of the transmission line b close to the sorting line. The first guide slide 5 is a slide with a spiral channel. The entrance of the spiral channel docks with the unloading place of the transmission line b, preferably with a rectangular cross-section and the bottom side of the rectangle is lower than the upper surface of the transmission line b. The outlet of the spiral channel docks with the upper surface of the upstream conveyor belt of the sorting line, preferably with a rectangular cross-section. In addition, in order to reduce the risk of the book slipping out of the protection box during the spiral descent of the book / protection box, preferably, the state of the protection box on the transmission line b is that the opening faces the upstream book return device side. This orientation can be achieved by prompting the book returner of the book placement direction when returning the book. Furthermore, a first sensor 51 is fixedly set at the outlet of the spiral channel. The first sensor 51 is used to detect whether the book has entered the sorting line from the transmission line b and transmit the signal to the controller 4. The frame of the first guide slide plate 5 is fixed on the support frame of the first-level sorting line 1 through a support plate.

[0049] Between the conveyor belts of the U-shaped sorting line, the situation when books / protection boxes are transferred from the previous set of conveyor belts (also called upstream conveyor belts) to the next adjacent set of conveyor belts (also called adjacent downstream conveyor belts) is as follows:

[0050] A second sensor 61 and a book pushing mechanism 62 are set at the end of the previous group of conveyor belts on the side opposite to the adjacent next group of conveyor belts. When the book a / protection box is conveyed to the second sensor 61 where it can detect them, the second sensor 61 detects and transmits the information to the controller 4. The controller 4 controls the action of the book pushing mechanism 62 to horizontally push the book a / protection box to move to the next group (downstream) of conveyor belts. The combination of the second sensor 61 and the book pushing mechanism 62 is set in three groups. Specifically, the book pushing mechanism 62 mainly includes a push plate 621 and a cylinder 622. The push plate 621 is fixed at the output end of the cylinder 622. The cylinder body of the cylinder 622 can be fixed on the support frame of the first-level sorting line 1 through a support plate, or a support structure can be set separately.

[0051] A plurality of groups of third sensors 63 and book pushing mechanisms 62 are arranged on the first-level sorting line 1, and each group of third sensors 63 and book pushing mechanisms 62 corresponds to a sorting station, such as corresponding to part A and corresponding to part B. The upstream book return device has transmitted the book classification related information to the controller 4, and the controller 4 has also obtained the information transmitted by the first sensor 51 about which book return device the book / protection box exited from and when it entered the first-level sorting line 1. The controller 4 obtains the time when the book / protection box arrives at the corresponding sorting station according to the position where the book enters the first-level sorting line 1 and the position of the sorting station to be reached (this time can be obtained by calculation and multiple tests before the equipment is officially put into use), and selects a time interval around this time. Within this time interval, if the third sensor 63 on the corresponding sorting station detects the book / protection box, the corresponding book pushing mechanism 62 is controlled to act to push the book / protection box into the next-level sorting line. Figure 3 The dashed box in the upper right corner shows the next-level sorting line for the sorting station of part A, which can be called the second-level sorting line 7 (a part of it). The second-level sorting line 7 includes the next-level sorting lines corresponding to all sorting stations on the first-level sorting line, and does not only refer to the part shown in the dashed box in the upper right corner of the figure. In addition, the sensors and book pushers at each sorting station on the sorting line in the figure are all set on one side of the conveyor belt, but in actual operation, some sensors and book pushers can be set on the other side, which should be arranged according to the site conditions.

[0052] What is completed on the second-level sorting line is the sorting of the books in part A to A1-A8. Each sorting station on the second-level sorting line is provided with a fourth sensor 64 and a book pushing mechanism 62. Similarly, the fourth sensor 64 is responsible for detecting the presence of books / protection boxes. When the books / protection boxes are detected within the time period when the target books / protection boxes are expected to arrive at the sorting station, the book pushing mechanism 62 will push the books / protection boxes to the next-level sorting line, that is, the third-level sorting line. The dotted box in the lower right corner of the attached figure frames part of the third-level sorting line. As mentioned above, all the next-level sorting lines corresponding to the sorting stations on the second-level sorting line are third-level sorting lines. The attached figure only shows the next-level sorting line corresponding to A1, which is responsible for sorting the books in A1 to A11-A18. The attached drawings show a book sorting device with three-level sorting lines, but the actual operation is not limited to this. The number of sorting lines included in the book sorting device should be determined according to actual needs, site restrictions and other factors. Sometimes a transfer device is added between the upper-level sorting line and the lower-level sorting line to transfer the books before sorting. Or, the upper-level sorting line and the lower-level sorting line are not spatially on the same horizontal plane as shown in the attached drawings. Due to site restrictions, the lower-level sorting line may be above or below the upper-level sorting line. At this time, a vertical book transfer device is required between the upper and lower sorting lines. The aforementioned transfer device and vertical transmission device are only for clarifying the scope of protection of this application. They are not part of the invention of this patent, so they will not be expanded.

[0053] After the sorting is completed on the sorting line, the books / protection boxes will enter the book collecting mechanism 2. In order to ensure that the protection boxes on the outside of the books are opened downward after entering the book collecting mechanism 2, a second guide slide 8 is arranged between the sorting line and the book collecting mechanism 2. There are the following situations for the arrangement of the second guide slide 8:

[0054] See attached Figure 4 When the protective box (containing books) enters the book collecting mechanism 2, the state on the conveyor belt is that the opening faces the side of the conveyor belt (according to Figure 4In the figure, it is facing left or right), the second guide slide 8 includes two upper and lower arc-shaped slides and a connecting plate connecting the two arc-shaped slides (only the upper and lower arc-shaped slides are shown in the figure), wherein the lower end of the upper slide is lower than the height of the protection box after it slides into the book collection frame 23, and the lower end of the lower slide is higher than the height of the protection box after it slides in, so that the second guide slide 8 does not hinder the sequential sliding of the protection box, and can provide a blocking force to prevent the protection box from lying horizontally in the book collection frame 23 when it is unstable just after entering the book collection frame 23 (in order to prevent the protection box from sliding and lying flat inside the book collection frame 23, a resistance layer is also provided on the bottom edge of the book collection frame 23, and the material of this resistance layer can also be one or more of cloth, rubber and resin). Under the premise that the bottom edge of the book collection frame 23 is tilted, the center of gravity of the protection box is unstable and tilts to the right to lean on the book collection frame 23 (or leans on the protection box that has entered the book collection frame 23 before). In addition, at this time, the arrangement direction of the books / protection boxes in the book collection frame 23 needs to be perpendicular to the conveying direction of the conveyor belt.

[0055] If the protection box opens to the left, the book collecting mechanism 2 is arranged on the left side of the conveyor belt; if the protection box opens to the right, the book collecting mechanism is arranged on the right side of the conveyor belt.

[0056] See attached Figure 5-6 Before the protective box enters the book collecting mechanism 2, the state on the conveyor belt is that the opening faces the conveying direction of the conveyor belt (in the attached Figure 5 The second guide slide plate 8 may be arranged as follows: it includes two sections, one section is a rectangular section (a cylindrical structure with a rectangular cross section) 82 which is arranged parallel to the edge of the conveyor belt and whose upper surface of the bottom edge is slightly lower than the upper surface of the conveyor belt. The protection box slides from the conveyor belt to the inner cavity of the rectangular section under the push of the book pushing mechanism and moves out of the upper end of the conveyor belt. The other section is an upstream side or downstream side (attached Figure 5 The arc-shaped guide segment connected to the left side and the right side of the protective box (if the opening side of the protective box is on the left side, the other section 81 of the second guide slide 8 is located on the left side of the rectangular segment 82; if the opening side of the protective box is on the right side, the other section 81 of the second guide slide 8 is located on the right side of the rectangular segment 82), the structure of the aforementioned arc-shaped guide segment is the same as the structure of the second guide slide 8 when the protective box is on the conveyor belt with the opening facing the side of the conveyor belt before entering the book collecting mechanism 2. Alternatively, the second guide slide 8 is arranged like the first guide slide 5. At this time, the arrangement direction of the books / protection boxes in the book collecting frame 23 needs to be parallel to the conveying direction of the conveyor belt.

[0057] See attached Figure 7-8The book collecting mechanism 2 mainly includes a horizontal transmission mechanism 21, a lifting cylinder 22 and a book collecting frame 23. The fixed part of the horizontal transmission mechanism 21 is fixed to the ground through a bracket, and the movable part is fixedly connected to a flat plate, on which at least one book collecting frame 23 is arranged. The book collecting frame 23 is a basket-shaped structure with an upper opening (in order to clearly show other structures in the figure, only the side edges of the book collecting frame 23 are drawn), one side of its bottom edge is rotatably connected to the flat plate through a bracket (preferably, the bracket is an elastic bracket), and the other side is rotatably connected to the output end of the lifting cylinder 22. The cylinder body of the lifting cylinder 22 is fixed on the flat plate, fixed The fixing method can be a conventional method such as bolt fixing. The horizontal transmission mechanism 21 can drive the flat plate to move horizontally, so that the books / protection boxes are aligned with different book collection frames 23 (at this time, different book collection frames can be used to place books of different categories or fields. At this time, the book collection mechanism 2 not only realizes the function of vertically collecting books, but also realizes another level of sorting function) or different positions of the same book collection frame 23 (after a book (and its protection box) enters the book collection frame, the book collection frame moves a distance of the thickness of a protection box, or a certain multiple of the thickness of the protection box, to facilitate the entry of the next protection box containing books).

[0058] The horizontal transmission mechanism 21 may use a linear motor or a servo motor in conjunction with a lead screw / nut to convert the direction of movement and a guide rail slider to guide the setting.

[0059] The reason why the lifting cylinder 22 is provided in the book collecting mechanism 2 is to make the books slightly tilt to one side during the book collecting process.

[0060] After the books are collected (that is, the number of protection boxes collected in the book collection frame reaches a certain number), the lifting cylinder 22 is actuated, the piston rod falls back, the entire book collection frame 23 is in a horizontal state, and the protection boxes containing the books are all opened downward, with the sides with iron materials facing upward. At this time, the controller 4 controls the box-taking mechanism 3 to take out all the protection boxes in the book collection frame, and the books are temporarily stored in the book collection mechanism 2. At this time, the sorting has been completed, and the subsequent equipment will not be introduced in the present invention.

[0061] As attached Fig. 9 As shown, the box taking mechanism 3 mainly includes an avoidance driving mechanism 33, a box taking cylinder 32 and a magnetic chuck 31. The magnetic chuck 31 is provided with an energized coil inside, which can generate magnetic force when energized to absorb the protective box, the magnetic chuck 31 is fixed to the moving end of the box taking cylinder 32, the cylinder body of the box taking cylinder 32 is fixed to the moving end of the avoidance driving mechanism 33, and the fixed end of the avoidance driving mechanism 33 is fixed to the ground or other supporting frames through a bracket.

[0062] When the book collecting frame 23 collects a certain number of protection boxes (books), the controller 4 controls the avoidance drive mechanism 33 to move, and brings the box taking cylinder 32 and the magnetic suction cup 31 to the top of the corresponding book collecting frame 23. The avoidance drive mechanism can be a horizontal linear drive mechanism, such as using a horizontally arranged linear motor or a servo motor to drive a screw / nut mechanism, or a cylinder, an electric cylinder; it may also be a horizontal rotary drive mechanism, such as a rotary cylinder; or it may be a combined mechanism including two directional drives, which depends on the overall layout, but the overall function is to achieve avoidance, that is, to let the box taking cylinder 32 and the magnetic suction cup 31 avoid the position above the book collecting frame 23 to avoid hindering the books from entering the book collecting frame 23 or hindering the movement of the book collecting frame 23.

[0063] The operation of the entire sorting equipment is as follows:

[0064] The book return device transmits information about the book, especially information about the book classification and the book return device used for returning the book (when a plurality of book return devices are arranged in a sorting device, each book return device is at a different position of the sorting line of the sorting device, and the controller 4 needs to obtain this position information) to the controller 4. The controller 4 analyzes and calculates the sorting stations of the books / protection boxes on each level of the sorting line, calculates the time required for the books / protection boxes to reach the sorting stations, and gives an estimated time period for arriving at the corresponding sorting stations. The first sensor 51 detects the time when the book pressed into the protection box enters the sorting line of the sorting device, and starts timing. When the book is transmitted to the end of a group of conveyor belts, the second sensor 61 will detect it and transmit information to the controller 4. The controller 4 controls the book pushing mechanism 62 to transmit the book from the upstream The belt is pushed onto the downstream conveyor belt. When the third sensor 63 of the corresponding sorting station detects the book / protection box within the expected time period, the book pushing mechanism 62 of the corresponding sorting station will push the book / protection box into the next-level sorting line or book collecting mechanism 2. After passing through one or more levels of sorting lines, the books / protection boxes will be pushed into the book collecting mechanism. In the stage of collecting books / protection boxes, the piston rod of the lifting cylinder 22 is extended to make the book collecting frame 23 in an inclined state. After the book / protection box falls, it will tilt to one side to avoid lying horizontally in the book collecting frame 23. After the book / protection box enters the book collecting frame 23, the controller 4 controls the horizontal transmission mechanism 21 to move a certain distance. The aforementioned certain distance can be the thickness of a protection box, or it can be several times the thickness of the protection box (for example, 1.5 times). When a certain number of books are placed in the book collecting frame 23, the controller 4 controls the coil in the box taking mechanism 3 to be energized, and at the same time, controls the avoidance driving mechanism 33 to operate, driving the box taking cylinder 32 and the magnetic suction cup 31 to the upper side of the book collecting frame 23, and the box taking cylinder 32 operates to drive the magnetic suction cup 31 to move downward to absorb the protection box, thereby completing the box taking action.

[0065] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Book sorting equipment, characterized by: It includes a protection box, at least one level of sorting line, a book collecting mechanism, a box taking mechanism and a controller. The protection box is used to transport and protect books, and comprises a protection box body and a cover. The protection box body is a dustpan-shaped structure having a bottom edge and three side edges. An elastic contact layer is arranged on the inner wall of the side edge of the protection box body and / or an elastic contact layer is arranged on the side wall of the cover. The protection box body and the cover are relatively fixed by being squeezed by the elastic contact layer. A resistance layer is arranged on the upper surface of the bottom edge of the protection box body and / or the lower surface of the cover, and an iron material is arranged on the side opposite to the opening side of the protection box. The at least one level sorting line includes a "U"-shaped sorting line, the "U"-shaped sorting line is composed of four groups of conveyor belts, and a plurality of book return devices are arranged on the outer side of the "U"-shaped sorting line; The book collecting mechanism comprises a horizontal transmission mechanism, a lifting cylinder and a book collecting frame. The moving part of the horizontal transmission mechanism is fixedly connected to a flat plate, on which at least one book collecting frame is arranged. One side of the bottom edge of the book collecting frame is rotatably connected to the flat plate through an elastic bracket, and the other side is rotatably connected to the output end of the lifting cylinder. The cylinder body of the lifting cylinder is fixed to the flat plate. The box taking mechanism comprises a magnetic sucker, which can suck up the protection box to separate the protection box and the book; The controller is used to collect information, process information and control the operation of various mechanisms in the sorting equipment.

2. The book sorting device according to claim 1, characterized in that: The material of the resistance layer is one or more of cloth, resin and rubber.

3. The book sorting device according to claim 1, characterized in that: The elastic contact layer is an array of elastic protrusions, and the material of the elastic contact layer is resin and / or rubber.

4. The book sorting device according to claim 1, characterized in that: A first guide slide is arranged between the book return device and the sorting line, and its internal structure is a spiral channel, which can adjust the direction of the books and the protection box to be parallel to the transmission direction of the conveyor belt, and a first sensor is fixed at the outlet end of the first guide slide.

5. The book sorting device according to claim 1, characterized in that: A second sensor and a book pushing mechanism are arranged at the end of the upper conveyor belt of the "U"-shaped sorting line on the side opposite to the adjacent lower conveyor belt. The second sensor is used to detect the presence of a protection box containing books, and the book pushing mechanism is used to push the protection box containing books to the lower conveyor belt.

6. The book sorting device according to claim 1, characterized in that: A third sensor and a book pushing mechanism are provided at each sorting station of the "U"-shaped sorting line.

7. The book sorting device according to claim 1, characterized in that: The box taking mechanism further comprises an avoidance driving mechanism and a box taking cylinder, the magnetic chuck is fixed to the moving end of the box taking cylinder, and the cylinder body of the box taking cylinder is fixed to the moving end of the avoidance driving mechanism.

8. The book sorting device according to claim 1, characterized in that: The operation steps of the sorting device are as follows: The controller receives information related to book classification and location information of the book return device used for returning books transmitted by the upstream book return device; Analyze the sorting stations of the protective boxes containing books on the sorting lines at all levels, obtain the time required for the protective boxes containing books to arrive at the sorting stations, and give the estimated time period for the protective boxes to arrive at the corresponding sorting stations; The first sensor detects the time when the protective box containing the books enters the sorting line of the sorting device, and starts timing; When the third sensor of the corresponding sorting station detects the protection box containing books within the expected time period, the book pushing mechanism of the corresponding sorting station will push the protection box containing books into the next-level sorting line or book collecting mechanism; After passing through one or more sorting lines, the protective boxes containing books are pushed into the book collecting mechanism; When a certain number of protection boxes containing books are installed in the book collecting frame of the book collecting mechanism, the controller controls the coil in the box taking mechanism to be energized to generate magnetism, absorb the protection boxes, and complete the box taking action.

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