A paper feed device that does not damage archival documents

Abstract

This utility model relates to the technical field of archival equipment and discloses a paper feeding device that does not damage archival documents. It includes a chassis with a conveyor fixedly mounted on it. A main control computer is also fixedly mounted in the chassis located behind the conveyor. A fan and an air compressor are fixedly mounted inside the chassis, and the conveyor, fan, and air compressor are electrically connected to the main control computer via cables. A storage mechanism and a feeding mechanism are also provided in the chassis located on one side of the conveyor. The storage mechanism stores paper documents, while the feeding mechanism continuously retrieves and transfers the stored paper documents to the conveyor for scanning. Simultaneously, the storage mechanism includes a pad that, with the assistance of a motor, a first synchronous pulley, a second synchronous pulley, a lead screw, an internal threaded sleeve, and a second infrared sensor, automatically lifts the stored paper documents, ensuring that the suction cup assembly can only pick up one sheet of paper document at a time.

Description

Technical Field

[0001] This utility model relates to the field of archival equipment technology, and in particular to a paper feeding device that does not damage archival documents. Background Technology

[0002] Digital archiving of paper archives is the process of converting paper documents into digital format through technologies such as scanning and image recognition, and then organizing and storing them according to archiving standards. In other words, it converts the text, images and other information of paper archives into searchable electronic data, which is then classified, cataloged and verified and incorporated into a digital archive management system to achieve efficient storage, convenient retrieval and secure use of archives.

[0003] In the digitization of archives, paper feed rollers are a common method. This method mainly relies on the friction between the rubber rollers to transport the archive documents. However, when the archive documents pass through the paper feed rollers, the friction between the paper and the rubber rollers is relatively large, and the squeezing action of multiple sets of paper feed rollers can easily cause uneven stress on the documents. In practice, problems such as paper jams and paper wrinkling often occur. Especially for old, fragile, or thin archives, it may directly cause paper damage and edge tearing. This not only affects the efficiency of archive digitization but may also cause irreversible damage to the original archives with preservation value. Utility Model Content

[0004] The purpose of this invention is to provide a paper feeding device that does not damage archival documents, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A paper feeding device that does not damage archival documents includes a chassis, on which a conveyor is fixedly mounted. A main control computer is also fixedly mounted in the chassis located behind the conveyor. A fan and an air compressor are fixedly mounted inside the chassis, and the conveyor, fan, and air compressor are electrically connected to the main control computer via cables. A material storage mechanism and a feeding mechanism are also provided in the chassis located on one side of the conveyor. The material storage mechanism includes a first baffle fixedly mounted inside the chassis. Two second baffles are fixedly mounted on one side of the first baffle. A lifting plate is movably mounted on the side of the first baffle opposite to the second baffles. Two support plates are also fixedly installed on one side of the lifting plate, and one side of each of the two support plates extends through the through groove in the first baffle to the space between the two second baffles and is fixedly connected to a pad. The feeding mechanism includes a base plate, which is fixedly installed in the machine box. A rodless cylinder assembly is fixedly installed on the base plate. A second slider is slidably connected to the rodless cylinder assembly. A Z-shaped plate is fixedly installed on the second slider. A cylinder is fixedly installed at the end of the Z-shaped plate away from the second slider. A carrier plate is fixedly installed at the output end of the cylinder. Multiple suction cup assemblies are fixedly installed in the carrier plate, and the suction cup assemblies are connected to the control valve of the air compressor through an air pipe.

[0007] As a further preferred embodiment of this utility model, two guide rails are fixedly installed on the side of the first baffle opposite to the second baffle. A first slider is slidably connected on the guide rail, and the two sides of the lifting plate are respectively fixedly connected to one side of one of the first sliders. An internal threaded sleeve is also fixedly installed on the lifting plate located between the two first sliders. The cooperation between the lifting plate, the support plate, and the pad provides conditions for the storage and lifting of paper.

[0008] As a further preferred embodiment of this utility model, a base is fixedly installed on the first baffle located below the guide rail, and a connecting plate is also fixedly installed on the first baffle located above the guide rail. One side of the connecting plate extends to the top of the conveyor. A motor is fixedly installed on the base, and the output end of the motor extends to the bottom of the base and is fixedly installed with a second synchronous pulley. The motor is electrically connected to the main control computer via a cable. A first synchronous pulley is rotatably installed at the bottom of the base. A lead screw is rotatably connected between the first synchronous pulley and the connecting plate, and the lead screw is also threadedly connected to an internal threaded sleeve. The second synchronous pulley and the first synchronous pulley are connected by a synchronous belt drive. The motor, as a power source, can drive the lead screw to rotate within the internal threaded sleeve through the cooperation of the first synchronous pulley, the second synchronous pulley, and the synchronous belt, thereby realizing the lifting function of the lifting plate.

[0009] As a further preferred embodiment of this utility model, a first infrared sensor is fixedly installed on one side of one of the support plates. The first infrared sensor is electrically connected to the main control computer via a cable. A through groove is opened on the pad located above the first infrared sensor. The first infrared sensor can detect whether there is still paper on the pad.

[0010] As a further preferred embodiment of this utility model, a second infrared sensor is fixedly installed on one side of each of the two second baffles. The second infrared sensor is electrically connected to the main control computer via a cable. The second infrared sensor can detect whether there is paper at the suction position of the suction cup assembly, thereby ensuring the normal progress of the feeding process. A blower pipe is fixedly installed between the two second baffles. The blower pipe is connected to the output end of the blower via a pipe, and the blower pipe is close to the connecting plate. The blower pipe can shake the suctioned paper and separate two adjacent sheets of paper, ensuring that each feeding is of one sheet of paper.

[0011] As a further preferred embodiment of this utility model, the rodless cylinder assembly is connected to the control valve of the air compressor via an air pipe. The combination of the rodless cylinder assembly and the second slider can work with the Z-shaped plate to realize the reciprocating motion of the suction cup assembly, and then work with the vertical motion of the cylinder to realize the suction cup assembly to transport the paper in the storage mechanism to the conveyor.

[0012] As a further preferred embodiment of this utility model, mounting plates are fixedly installed on the base plates located on both sides of the rodless cylinder assembly. Limit switches are fixedly installed inside the mounting plates. The limit switches are electrically connected to the main control computer via cables. The limit switches can control the reciprocating motion of the second slider.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this utility model, the storage mechanism can store paper files, and the feeding mechanism can continuously extract the paper files stored in the storage mechanism and transfer them to the conveyor for conveying and scanning. At the same time, the pad included in the storage mechanism can automatically lift the stored paper files with the help of a motor, a first synchronous wheel, a second synchronous wheel, a lead screw, an internal threaded sleeve, and a second infrared sensor, ensuring that the suction cup assembly can adsorb one paper file at a time. The cooperation between the storage mechanism and the feeding mechanism can achieve non-destructive feeding of paper files. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a bottom view of the material storage mechanism structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the material storage mechanism of this utility model;

[0018] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the feeding mechanism of this utility model.

[0020] In the diagram: 1. Chassis; 2. Conveyor; 3. Main control computer; 4. Fan; 5. Air compressor; 6. Material storage mechanism; 7. First baffle; 8. Second baffle; 9. Lifting plate; 10. Support plate; 11. Pad plate; 12. Feeding mechanism; 13. Base plate; 14. Rodless cylinder assembly; 15. Z-shaped plate; 16. Cylinder; 17. Carrier plate; 18. Suction cup assembly; 19. Guide rail; 20. First slider; 21. Base; 22. Motor; 23. First synchronous pulley; 24. Second synchronous pulley; 25. Lead screw; 26. First infrared sensor; 27. Second infrared sensor; 28. Blowpipe; 29. ​​Mounting plate; 30. Limit switch; 31. Second slider; 32. Internal threaded sleeve; 33. Connecting plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-5As shown, this utility model provides a paper feeding device that does not damage archival documents. It includes a chassis 1, on which a conveyor 2 is fixedly installed. A main control computer 3 is also fixedly installed in the chassis 1 behind the conveyor 2. A fan 4 and an air compressor 5 are fixedly installed inside the chassis 1, and the conveyor 2, fan 4, and air compressor 5 are electrically connected to the main control computer 3 via cables. A material storage mechanism 6 and a feeding mechanism 12 are also provided inside the chassis 1 on one side of the conveyor 2. The material storage mechanism 6 includes a first baffle 7, which is fixedly installed inside the chassis 1. Two second baffles 8 are fixedly installed on one side of the first baffle 7. A lifting plate 9 is movably installed on the side of the first baffle 7 opposite to the second baffles 8. Two support plates 10 are fixedly installed on one side of the 9, and the two support plates 10 extend through the through groove in the first baffle 7 to the space between the two second baffles 8 and are fixedly connected to the pad plate 11. The feeding mechanism 12 includes a base plate 13, which is fixedly installed in the machine box 1. A rodless cylinder assembly 14 is fixedly installed on the base plate 13. A second slider 31 is slidably connected to the rodless cylinder assembly 14. A Z-shaped plate 15 is fixedly installed on the second slider 31. A cylinder 16 is fixedly installed at the end of the Z-shaped plate 15 away from the second slider 31. A carrier plate 17 is fixedly installed at the output end of the cylinder 16. Multiple suction cup assemblies 18 are fixedly installed in the carrier plate 17, and the suction cup assemblies 18 are connected to the control valve of the air compressor 5 through an air pipe.

[0023] like Figures 1-4As shown, two guide rails 19 are fixedly installed on the side of the first baffle 7 opposite to the second baffle 8. A first slider 20 is slidably connected to the guide rail 19, and the lifting plate 9 is fixedly connected to one side of each of the first sliders 20 on both sides. An internal threaded sleeve 32 is also fixedly installed on the lifting plate 9 located between the two first sliders 20. The cooperation between the lifting plate 9, the support plate 10, and the pad 11 provides conditions for paper storage and lifting. A machine base 21 is fixedly installed on the first baffle 7 below the guide rails 19, and a connecting... A connecting plate 33 extends to the top of the conveyor 2 on one side. A motor 22 is fixedly mounted on the base 21. The output end of the motor 22 extends to the bottom of the base 21 and a second synchronous pulley 24 is fixedly mounted thereon. The motor 22 is electrically connected to the main control computer 3 via a cable. A first synchronous pulley 23 is rotatably mounted on the bottom of the base 21. A lead screw 25 is rotatably connected between the first synchronous pulley 23 and the connecting plate 33, and the lead screw 25 is also threadedly connected to the internal threaded sleeve 32. The second synchronous pulley 24 is connected to the first synchronous pulley 23 via a synchronous belt drive. The motor 22 serves as the driving mechanism. The power source, through the cooperation of the first synchronous pulley 23, the second synchronous pulley 24, and the synchronous belt, can drive the lead screw 25 to rotate within the internal threaded sleeve 32, thereby realizing the lifting function of the lifting plate 9. A first infrared sensor 26 is fixedly installed on one side of one of the support plates 10. The first infrared sensor 26 is electrically connected to the main control computer 3 via a cable. A through groove is opened on the pad 11 located above the first infrared sensor 26. The first infrared sensor 26 can detect whether there is still paper on the pad 11. Two second baffles 8 are respectively fixedly installed on one side. Equipped with a second infrared sensor 27, which is electrically connected to the main control computer 3 via a cable, the second infrared sensor 27 can detect whether there is paper at the suction position of the suction cup assembly 18, thereby ensuring the normal progress of the feeding process. A blow pipe 28 is fixedly installed between the two second baffles 8. The blow pipe 28 is connected to the output end of the blower 4 via a pipe and is close to the connecting plate 33. The blow pipe 28 can shake the suctioned paper and separate two adjacent sheets of paper, ensuring that each feeding is of one sheet of paper.

[0024] like Figure 1 , Figure 5As shown, the rodless cylinder assembly 14 is connected to the control valve of the air compressor 5 via an air pipe. The combination of the rodless cylinder assembly 14 and the second slider 31 can work with the Z-shaped plate 15 to realize the reciprocating motion of the suction cup assembly 18, and then work with the vertical motion of the cylinder 16 to realize the suction cup assembly 18 to transport the paper in the storage mechanism 6 to the conveyor 2. Mounting plates 29 are fixedly installed on the base plates 13 located on both sides of the rodless cylinder assembly 14. Limit switches 30 are fixedly installed in the mounting plates 29. The limit switches 30 are electrically connected to the main control computer 3 via cables. The limit switches 30 can control the reciprocating motion process of the second slider 31.

[0025] It should be noted that this utility model is a paper feeding device that does not damage archival documents. First, its pad 11 is located at the lowest position between the two second baffles 8. Then, the paper documents can be placed in the enclosed space formed by the pad 11 and the two second baffles 8. Then, the first infrared sensor 26 detects the presence of paper, and the main control computer 3 controls the motor 22 to start. The motor 22 drives the second synchronous wheel 24 to rotate, and the first synchronous wheel 23 is rotated through the synchronous belt. In turn, the lead screw 25 rotates in the internal thread sleeve 32, so that the lifting plate 9 is adjusted upward at a uniform speed along the guide rail 19, so that the documents are always kept at a suitable height.

[0026] Then, the rodless cylinder assembly 14 drives the second slider 31 to move laterally, and the Z-shaped plate 15, cylinder 16, carrier plate 17 and suction cup assembly 18 move accordingly. When the internal thread sleeve 32 touches one of the limit switches 30, the cylinder 16 is activated and pushes the carrier plate 17 down. The suction cup assembly 18, under the action of the air compressor 5, adsorbs a single file and automatically lifts up. At the same time, the blow pipe 28 blows air under the action of the fan 4, thereby shaking the adsorbed paper and causing the airflow to blow between the two sheets of paper to separate them, ensuring that only one file is adsorbed at a time. After adsorbing the file, the rodless cylinder assembly 14, in conjunction with the second slider 31, moves the suction cup assembly 18 above the conveyor 2. The suction cup assembly 18 releases the file, which falls onto the conveyor 2 and is transported and scanned. At the same time, the second slider 31 touches another limit switch 30 on the substrate 13, and the second slider 31 automatically moves towards the storage mechanism 6 to repeat the operation.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A paper feeding device that does not damage archival documents, comprising a chassis (1), a conveyor (2) fixedly mounted on the chassis (1), a main control computer (3) fixedly mounted on the chassis (1) located behind the conveyor (2), a fan (4) and an air compressor (5) fixedly mounted inside the chassis (1), and the conveyor (2), fan (4), and air compressor (5) being electrically connected to the main control computer (3) via cables, and a material storage mechanism (6) and a feeding mechanism (12) being provided inside the chassis (1) located on one side of the conveyor (2), characterized in that: The material storage mechanism (6) includes a first baffle (7), which is fixedly installed inside the chassis (1). Two second baffles (8) are fixedly installed on one side of the first baffle (7). A lifting plate (9) is movably installed on the side of the first baffle (7) opposite to the second baffles (8). Two support plates (10) are also fixedly installed on one side of the lifting plate (9). One side of each of the two support plates (10) extends through a through groove in the first baffle (7) to the space between the two second baffles (8) and is fixedly connected to a pad (11). The feeding mechanism (12) includes a base plate (13). The base plate (13) is fixedly installed inside the chassis (1). A rodless cylinder assembly (14) is fixedly installed on the base plate (13). A second slider (31) is slidably connected to the rodless cylinder assembly (14). A Z-shaped plate (15) is fixedly installed on the second slider (31). A cylinder (16) is fixedly installed at the end of the Z-shaped plate (15) away from the second slider (31). A carrier plate (17) is fixedly installed at the output end of the cylinder (16). Multiple suction cup assemblies (18) are fixedly installed inside the carrier plate (17). The suction cup assemblies (18) are connected to the control valve of the air compressor (5) through an air pipe.

2. The paper feeding device that does not damage archival documents according to claim 1, characterized in that: Two guide rails (19) are fixedly installed on the side of the first baffle (7) opposite to the second baffle (8). A first slider (20) is slidably connected on the guide rail (19), and the two sides of the lifting plate (9) are respectively fixedly connected to one side of one of the first sliders (20). An internal thread sleeve (32) is also fixedly installed on the lifting plate (9) between the two first sliders (20).

3. The paper feeding device that does not damage archival documents according to claim 2, characterized in that: A base (21) is fixedly installed on the first baffle (7) located below the guide rail (19). A connecting plate (33) is also fixedly installed on the first baffle (7) located above the guide rail (19). One side of the connecting plate (33) extends to the top of the conveyor (2). A motor (22) is fixedly installed on the base (21). The output end of the motor (22) extends to the bottom of the base (21) and a second synchronous pulley (24) is fixedly installed. The motor (22) is electrically connected to the main control computer (3) via a cable. A first synchronous pulley (23) is rotatably installed at the bottom of the base (21). A lead screw (25) is rotatably connected between the first synchronous pulley (23) and the connecting plate (33). The lead screw (25) is also threadedly connected to the internal thread sleeve (32). The second synchronous pulley (24) is connected to the first synchronous pulley (23) via a synchronous belt drive.

4. The paper feeding device that does not damage archival documents according to claim 1, characterized in that: One of the support plates (10) is fixedly installed with a first infrared sensor (26) on one side. The first infrared sensor (26) is electrically connected to the main control computer (3) via a cable. A through groove is opened on the pad (11) located above the first infrared sensor (26).

5. The paper feeding device that does not damage archival documents according to claim 3, characterized in that: A second infrared sensor (27) is fixedly installed on one side of each of the two second baffles (8). The second infrared sensor (27) is electrically connected to the main control computer (3) via a cable. A blower pipe (28) is fixedly installed between the two second baffles (8). The blower pipe (28) is connected to the output end of the fan (4) via a pipe, and the blower pipe (28) is located near the connecting plate (33).

6. The paper feeding device that does not damage archival documents according to claim 1, characterized in that: The rodless cylinder assembly (14) is connected to the control valve of the air compressor (5) via an air pipe.

7. The paper feeding device that does not damage archival documents according to claim 5, characterized in that: Mounting plates (29) are fixedly installed on the base plates (13) located on both sides of the rodless cylinder assembly (14). Limit switches (30) are fixedly installed in the mounting plates (29). The limit switches (30) are electrically connected to the main control computer (3) via cables.

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