CN104384109A - Design method for book sorting machine and designed book sorting machine - Google Patents

Abstract

The invention discloses a design method of a book sorting machine. Step 1: analyze the existing book sorting machine to find out technical conflicts; step 2: select a pair of characteristic parameters representing technical conflicts from a list of 39 general engineering parameters ; Step 3, determine the principle of the invention; Step 4, design a solution according to the principle of the invention. At the same time, a book sorting machine is also disclosed, including an identification device, a book management system matched with the identification device, a conveying device and a sorting device sequentially arranged downstream of the identifying device, and the identifying device, the conveying device and the sorting device pass through PLC overall control. The design method of the present invention adopts the TRIZ theory, and the book sorting machine designed by this method effectively overcomes the shortcomings of existing book sorting machines such as complex structure, large footprint, and large investment; the book sorting machine of the present invention realizes The sorting of books is small in size, low in cost and high in sorting efficiency.

Description

Design method of a book sorting machine and designed book sorting machine

technical field

The invention relates to a design method of a book sorting machine, in particular to a design method of a book sorting machine based on TRIZ theory. The present invention also relates to a book sorting machine designed by the above-mentioned design method.

Background technique

The application of domestic large-scale intelligent book sorting system requires huge investment, huge floor area, relatively long conveyor belt, low conveying efficiency, most of the energy of the motor is wasted in the process of conveying books, and only 22 kinds of books can be processed. Basic categories for sorting. Domestic colleges and universities cannot apply large-scale intelligent book sorting systems with huge investment and floor space. Therefore, there are no application examples of automatic sorting systems in domestic university libraries, and manual sorting is generally used.

The term TRIZ is a Russian synonym for "Theory of Inventive Problem Solving", which means a method to solve invention problems. The TRIZ theory was started by G.S.Altshuller of the former Soviet Union and a group of researchers led by G.S.Altshuller of the former Soviet Union in 1946. It took 1,500 people/year to analyze and study 2.5 million patents from various countries in the world, and summed up the evolution of various technologies. The laws and models of the invention, as well as the innovative principles and laws for solving various technical conflicts and physical conflicts.

The TRIZ theory believes that the core of the invention problem is to solve the conflict, and the principle to be followed in solving the conflict is: while improving the performance of one component in the system, it cannot affect the performance of other components in the system. Conflicts are mainly divided into technical conflicts and physical conflicts. For physical conflicts, the principle of separation can be used to find solutions; for technical conflicts, the conflict matrix can be used to find the corresponding invention principles and find solutions to conflicts. The conflict resolution process is shown in Figure 1.

To sum up, using TRIZ theory to realize a design method of book sorting machine, the book sorting machine designed by this method can overcome the shortcomings of existing book sorting machines has become a possibility.

Contents of the invention

In order to solve the above technical problems, the present invention provides a design method of a book sorting machine and the designed book sorting machine.

In order to achieve the above object, the technical solution adopted in the present invention is:

A design method for a book sorting machine, comprising the following steps,

Step 1, analyzing the existing book sorting machine to find out the technical conflict; the technical conflict of the existing book sorting machine is the conflict between structural complexity and sorting efficiency;

Step 2, select a pair of characteristic parameters representing technical conflicts from a list of 39 general engineering parameters; said characteristic parameters are No.36 and No.25;

Step 3, bring the characteristic parameters No.36 and No.25 obtained in Step 2 into the conflict matrix to determine the invention principle; the determined invention principle is No.6 multi-purpose principle and No.29 pneumatic and hydraulic structure principle;

Step 4, design a solution according to the principle of the invention; the solution designed according to the principle of No.6 versatility is: replace multiple conveying mechanisms in the sorting device of the existing book sorting machine with one conveying mechanism, and the conveying mechanism The mechanism is set on the track trolley to realize the basic category sorting of books; the solution designed according to the principle of No.29 pneumatic and hydraulic structure is: design the lifting platform to realize the sorting of books in large categories and subcategories.

A book sorting machine, comprising an identification device, a book management system matched with the identification device, a transmission device and a sorting device arranged downstream of the identification device in sequence, the identification device, the transmission device and the sorting device are integrally controlled by a PLC, The sorting device includes a sorting platform and a bookshelf. The sorting platform includes a bracket, a lifting platform and a rail trolley. The lifting platform is fixed on the support. track, the track trolley can move on the track, the track trolley is provided with a conveying mechanism, a drive motor for driving the conveying mechanism to work, and a drive motor for driving the track trolley to move, the bookshelf is placed on one side of the sorting platform and Located downstream of the conveying mechanism.

There are two sorting devices, and they are arranged side by side downstream of the conveying device, and a bookshelf is placed downstream of each conveying mechanism.

Universal wheels are arranged at the bottom of the bookshelf, and nine layers and eleven rows of book frames are arranged on the bookshelf.

The lifting device of the lifting platform is an electric lifting column structure.

A number of self-locking lifting rods are also arranged between the working surface of the lifting platform and the support.

The self-locking lifting rod includes at least two lifting joint rods and a locking mechanism that are sheathed sequentially from the inside to the outside. The locking mechanism includes a spring, and both ends of the spring are fixed with a stepped shaft. The small shaft faces outward, the length of the small shaft of the stepped shaft is greater than the wall thickness of the lifting joint, and the adjacent lifting joints are respectively an inner joint and an outer joint, and the opposite sides of the bottom of the inner joint are provided with A through hole matching the small shaft of the stepped shaft, the two sides opposite to the top of the outer section rod are provided with through holes matching the small shaft of the stepped shaft, and the small shafts of the stepped shaft located at both ends of the spring are respectively embedded in both sides of the inner section rod In the through hole, and the spring is in a compressed state.

The working surface of the lifting platform is rectangular in shape, the track is arranged along the length direction of the working surface, and the conveying direction of the conveying mechanism is along the width direction of the working surface.

The conveying mechanism is a roller conveying mechanism.

Beneficial effects achieved by the present invention: 1. The design method of the present invention adopts the TRIZ theory, determines the invention principle through the conflict matrix, designs the solution according to the invention principle, and the book sorting machine designed by this method effectively overcomes the existing books. The sorting machine has the disadvantages of complex structure, large footprint, and large investment; 2. The book sorting machine of the present invention is improved on the existing book sorting machine, and multiple conveying mechanisms in multiple sorting devices are used to convey Instead of a mechanism, the conveying mechanism is set on the track trolley, and the track trolley is set on the lifting platform. Through the movement of the track trolley and the lifting platform, the sorting of books is realized, with small size, low cost and high sorting efficiency.

Description of drawings

Figure 1 shows the conflict resolution process.

Fig. 2 is a flowchart of the design method of the present invention.

Fig. 3 is a structural schematic diagram of the book sorting machine.

Fig. 4 is a schematic structural diagram of the sorting device.

Fig. 5 is a structural schematic diagram of the self-locking lifting rod.

Fig. 6 is a structural schematic diagram of the locking mechanism.

Fig. 7 is a structural schematic diagram of locking by the locking mechanism.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

As shown in Figure 2, a design method of a book sorting machine includes the following steps:

Step 1: Analyze the existing book sorting machines to find out technical conflicts.

The design structure of the existing book sorting machine is too complicated, the production cost and difficulty are high, and the floor area is large. Therefore, the new design hopes to improve the characteristic of reducing the complexity of the system. At the same time, it must reduce the complexity of the system. It will change the structure of the book sorting machine and reduce the efficiency of the book sorting machine; therefore, the technical conflict of the book sorting machine is the conflict between the structural complexity and the sorting efficiency.

Step 2: Select a pair of characteristic parameters representing technical conflicts from the list of 39 general engineering parameters; said characteristic parameters are No.36 and No.25.

Step three, bring the characteristic parameters No.36 and No.25 obtained in step two into the conflict matrix to determine the principle of the invention.

The conflict matrix is the existing technology, as shown in Table 1

Table 1. Brief table of 39×39 contradiction matrix

Combined with the conflict matrix, the determinable invention principles are No.6 multi-purpose principle and No.29 pneumatic and hydraulic structure principle.

Step four, design a solution based on the principles of the invention.

Analyze No.6 multi-purpose principle, No.6 multi-purpose principle is to enable one object to complete multiple functions, which can reduce the number of objects required to complete these functions in the original design. Since the multiple conveying mechanisms 4 in the sorting device of the existing sorting machine are identical and work independently of each other, it can be replaced by one conveying mechanism 4, and the conveying mechanism 4 is arranged on the track trolley 3 to realize different positions. sorting. To sum up, the solution designed according to No.6 multi-purpose principle is: replace multiple conveying mechanisms 4 in the sorting device of the existing book sorting machine with one conveying mechanism 4, and set the conveying mechanism 4 The basic category sorting of books is realized on the rail trolley 3.

Analyze the principle of No.29 pneumatic and hydraulic structure. The principle of No.29 pneumatic and hydraulic structure is to replace the solid parts of the object with pneumatic or hydraulic components, and use gas or liquid for expansion or vibration reduction. Since the existing sorting machines generally divide books into 22 basic categories, the specific subdivision is still through manual sorting. When encountering the peak period of school holidays or students returning books, the workload is huge. The staff of the library put forward a challenge, which caused books to be piled up and hindered the circulation of books. Therefore, a lifting platform 2 can be designed, and the track car 3 is set on the lifting platform 2, and the movement of the track car 3 and the lifting platform 2 can realize books More specific sorting. To sum up, the solution designed according to the principle of No.29 pneumatic and hydraulic structure is: design the lifting platform 2 to realize the sorting of books in large categories and subcategories.

The book sorting machine designed according to the above-mentioned design method, as shown in Figure 3, includes a recognition device, a book management system matched with the recognition device, a conveying device 1 and a sorting device that are arranged downstream of the recognition device in sequence, the recognition device, the conveying device The device 1 and the sorting device are integrally controlled by PLC.

As shown in Figure 4, the sorting device includes a sorting platform and a bookshelf 5, the sorting platform includes a bracket 8, a lifting platform 2 and a rail car 3, the lifting platform 2 is fixed on the bracket 8, and the lifting platform 2 is an electric lifting column structure A number of self-locking elevating rods 7 are also arranged between the working surface of the lifting platform 2 and the support 8. The working surface of the lifting platform 2 is provided with a track matched with the track trolley 3. The working surface is rectangular in shape here, and the track runs along the The length direction of the table is set, and the rail trolley 3 can move on the track. The rail trolley 3 is provided with a conveying mechanism 4, a driving motor for driving the conveying mechanism 4 to work, and a driving motor for driving the rail trolley 3 to move. The conveying mechanism 4 is a roller conveying mechanism, its conveying direction is along the width direction of the working surface, and the bookshelf 5 is placed on one side of the sorting platform and is positioned at the downstream of the conveying mechanism 4 .

As shown in FIG. 5 , the above-mentioned self-locking elevating rod 7 includes at least two elevating joint rods and locking mechanisms that are sheathed sequentially from the inside to the outside. As shown in Figures 6 and 7, the locking mechanism includes a spring 74, the two ends of the spring 74 are fixed with a stepped shaft 73, the small shaft of the stepped shaft 73 faces outwards, the length of the small shaft is greater than the wall thickness of the lifting joint rod, adjacent The lifting joint rods are respectively an inner joint rod 72 and an outer joint rod 71. Both sides opposite to the bottom of the inner joint rod 72 are provided with through holes matching the small shaft of the stepped shaft 73, and both sides opposite to the top of the outer joint rod 71 are provided with There is a through hole matched with the small shaft of the stepped shaft 73, and the small shafts of the stepped shaft 73 located at the two ends of the spring 74 are respectively embedded in the through holes on both sides of the inner section rod 72, and the spring 74 is in a compressed state. When the inner section bar 72 rises to the top of the outer section bar 71, the small shaft of the stepped shaft 73 is pushed into the through hole of the outer section bar 71 under the action of the spring 74 to realize self-locking.

In order to further improve the sorting efficiency, there are two sorting devices of the book sorting machine, and they are arranged side by side at the downstream of the conveying device 1. In order to cooperate with the two sorting devices, two bookshelves 5 are configured, each conveying A bookshelf 5 is placed downstream of the mechanism 4, and each bookcase 5 is provided with nine layers and eleven rows of book boxes, that is, each sorter sorts eleven major categories, and each major category is divided into nine subcategories. In order to facilitate the movement of the bookshelf 5, universal wheels 6 are also arranged at the bottom of the bookshelf 5

The working process of the above-mentioned book sorting machine: when the reader returns the book, the book is first identified by the identification device, and the 22 basic categories of books are divided into A--K and N--Z by PLC control. A-- The K eleven kinds of books are transported to the conveying mechanism 4 of a sorting device through the conveying device 1, and the N--Z eleven kinds of books are conveyed to the conveying mechanism 4 of another sorting device through the conveying device 1. Under the control of PLC, the track trolley 3 moves to different positions on the 11th row of the bookshelf, and then the lifting platform 2 of the sorting device moves to different positions on the 5th and 9th floors of the bookshelf under the control of the PLC. When matching the position, PLC controls the transport mechanism 4 of the sorting device to send books into the book frame.

In summary, the design method of the present invention adopts the TRIZ theory, determines the invention principle through the conflict matrix, and designs the solution according to the invention principle. The book sorting machine designed by this method effectively overcomes the complicated structure of the existing book sorting machine. , large area, large investment and other shortcomings. The book sorting machine designed by the above design method is improved on the existing book sorting machine, and the multiple conveying mechanisms 4 in the multiple sorting devices are replaced by one conveying mechanism 4, and the conveying mechanism 4 is arranged on the track trolley 3 Above, the track trolley 3 is set on the lifting platform 2, and the sorting of books is realized through the movement of the track trolley 3 and the lifting platform 2, which is small in size, low in cost and high in sorting efficiency.

The above is only a preferred embodiment of the present invention, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.

Claims (9)

1. A design method of a book sorting machine, characterized in that: comprising the following steps, Step 1, analyzing the existing book sorting machine to find out the technical conflict; the technical conflict of the existing book sorting machine is the conflict between structural complexity and sorting efficiency; Step 2, select a pair of characteristic parameters representing technical conflicts from a list of 39 general engineering parameters; said characteristic parameters are No.36 and No.25; Step 3, bring the characteristic parameters No.36 and No.25 obtained in Step 2 into the conflict matrix to determine the invention principle; the determined invention principle is No.6 multi-purpose principle and No.29 pneumatic and hydraulic structure principle; Step 4: Design the solution according to the principle of the invention; the solution designed according to the principle of No.6 versatility is: use one conveying mechanism (4) for multiple conveying mechanisms (4) in the sorting device of the existing book sorting machine Instead, the conveying mechanism is set on the track trolley to realize the basic category sorting of books; the solution designed according to the principle of No.29 pneumatic and hydraulic structure is: design the lifting platform (2) to realize the large category and small category of books class sorting. 2. A sorting machine for books, characterized in that it includes an identification device, a book management system matched with the identification device, a transmission device (1) and a sorting device arranged downstream of the identification device in sequence, the identification device, the transmission device (1) and the sorting device are controlled by PLC as a whole. The sorting device includes a sorting platform and a bookshelf (5), and the sorting platform includes a bracket (8), a lifting platform (2) and a rail trolley (3), The lifting platform (2) is fixed on the bracket (8), and the working surface of the lifting platform (2) is provided with a track matching the track trolley (3), and the track trolley (3) can move on the track , the rail trolley (3) is provided with a conveying mechanism (4), a driving motor for driving the conveying mechanism (4) to work, and a driving motor for driving the rail trolley (3) to move, and the bookshelf (5) is placed on the sorting platform on one side and downstream of the conveying mechanism (4). 3. A book sorting machine according to claim 2, characterized in that there are two sorting devices, and they are arranged side by side downstream of the conveying device (1), and downstream of each conveying mechanism (4). Each has a bookshelf. 4. A book sorting machine according to claim 3, characterized in that: the bottom of the bookshelf (5) is provided with universal wheels (6), and the bookshelf (5) is provided with nine layers and eleven columns book frame. 5. A book sorting machine according to claim 2, characterized in that: the lifting device of the lifting platform (2) is an electric lifting column structure. 6. A book sorting machine according to claim 5, characterized in that: a number of self-locking lifting rods (7) are also arranged between the working surface of the lifting platform (2) and the support (8). 7. A book sorting machine according to claim 6, characterized in that: the self-locking lifting rod (7) includes at least two lifting joints and locking mechanisms that are sequentially sleeved from the inside to the outside, and the The locking mechanism includes a spring (74), the two ends of the spring (74) are fixed with a stepped shaft (73), the small shaft of the stepped shaft (73) faces outward, and the small shaft of the stepped shaft (73) The length is greater than the wall thickness of the lifting joint, and the adjacent lifting joints are respectively the inner joint (72) and the outer joint (71). (73) A through hole matching the small shaft, the opposite sides of the top of the outer section rod (71) are provided with through holes matching the small shaft of the stepped shaft (73), and the stepped shaft (73) located at both ends of the spring (74) ) are respectively embedded in the through holes on both sides of the inner section rod (72), and the spring (74) is in a compressed state. 8. A book sorting machine according to claim 6, characterized in that: the working surface of the lifting platform (2) is rectangular in shape, the track is set along the length direction of the working surface, and the conveying mechanism ( 4) The conveying direction is along the width direction of the working surface. 9. A book sorting machine according to claim 8, characterized in that: the conveying mechanism (4) is a roller conveying mechanism.