Feeding mechanism of digital printing machine

Abstract

The utility model discloses a digital printing machine feeding mechanism which comprises a feeding table and a feeding box, a pressing rod is rotatably arranged on one side of the feeding table through a torsion spring, a pressing plate is arranged at one end of the pressing rod, a lower pressing rod is arranged on the pressing plate in a sliding mode, a lower pressing plate is arranged at one end of the lower pressing rod, and a lower pressing spring is arranged between the lower pressing plate and the pressing plate. The pressing plate drives the downward pressing rod and the downward pressing plate to move and is matched with the downward pressing spring to press the paper, the paper is prevented from deviating when the paper is not fed, meanwhile, during paper feeding, after the pressing plate is lifted up and the uppermost layer of paper is moved, the next layer of paper is pressed downwards through the downward pressing plate, paper separation is facilitated, single-piece paper feeding is achieved, and meanwhile the paper feeding stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to digital printing machine technical field more specifically, it relates to a digital printing machine feeding mechanism. BACKGROUND

[0002] Digital printing machine passes through digital technology and converts electronic file directly into printed matter, spares the step of making plate in traditional printing, can switch from one job to another job quickly, is suitable for small batch and individualized printing, can realize different content of every page easily, is applicable to direct mail marketing, individualized books etc., reduces chemical substance use in traditional printing, reduces the influence to the environment.

[0003] The paper feeding mechanism of the digital printing machine is one of the key components to ensure printing quality and production efficiency, the existing paper feeding mechanism has complex structure, high failure rate and poor maintenance economy, and lacks a pressing device on the feeding box, so that the stability of the paper is poor, and multiple paper sheets are easily adhered and fed during the paper feeding process, affecting the use effect of the printing machine. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the problems in the prior art, the utility model provides a digital printing machine feeding mechanism to solve the technical problem of poor stability during paper conveying mentioned in the background art.

[0006] (II) technical scheme

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a digital printing machine feeding mechanism, which comprises a feeding table and a feeding box, one side of the feeding table is provided with a pressing rod which rotates through a torsion spring, one end of the pressing rod is provided with a pressing plate, a lower pressing rod is slidably arranged on the pressing plate, one end of the lower pressing rod is provided with a lower pressing plate, a lower pressing spring is arranged between the lower pressing plate and the pressing plate, a moving frame is arranged on the feeding table, a moving block is slidably arranged on the moving frame, a moving motor is arranged on the moving frame, a moving screw is arranged on the motor shaft of the moving motor, a moving sleeve matched with the moving screw is arranged on the moving block, moving plates are arranged on the upper and lower sides of the moving sleeve, a moving spring is arranged between the upper moving plate and the moving block, and a driving mechanism is arranged on the moving block.

[0008] The utility model is further provided with a cam rotatably arranged at one end of the feeding table, and a pressing ring matched with the cam is arranged at one end of the pressing rod, the long and short shafts of the cam are in contact with the pressing ring respectively, so as to drive the pressing rod to rotate.

[0009] The present invention is further configured such that a clamping frame is provided on one side of the feeding table, and a clamping motor is provided on the clamping frame. The motor shaft of the clamping motor is fixedly connected to the cam, and the cam is driven to rotate by the clamping motor.

[0010] The present invention is further configured such that the movable sleeve is provided with a limiting block, and the movable block is provided with a limiting groove that cooperates with the limiting block, thereby limiting the moving direction of the movable sleeve and preventing the movable sleeve from rotating with the movable screw.

[0011] The present invention is further configured such that the driving mechanism includes a driving motor, a driving shaft is provided on the motor shaft of the driving motor, and a driving roller is provided on the driving shaft. The driving motor drives the driving shaft and the driving roller to rotate, thereby realizing paper feeding.

[0012] The present invention is further configured such that an adjusting plate is provided on one side of the feeding box, an adjusting rod is provided at one end of the adjusting plate, and an adjusting block is provided at one end of the adjusting rod. The adjusting rod and the adjusting block are slidably disposed at the bottom of the feeding box, and the position of the adjusting plate is moved by the cooperation of the adjusting rod and the adjusting block.

[0013] The present invention is further provided that a support plate is provided between the adjusting plate and the feeding box, and the support plate is slidably disposed on the top of the feeding box to facilitate the support of the paper.

[0014] The present invention is further configured such that a driving cylinder is provided at the bottom of the feeding box, and the output end of the driving cylinder is fixedly connected to the adjusting plate, so as to facilitate the movement of the adjusting plate.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a feeding mechanism for a digital printing machine, which has the following advantages:

[0017] 1. The clamping motor drives the cam to rotate, and the long and short shafts of the cam contact the clamping ring respectively, driving the clamping rod to rotate. The clamping plate drives the lower pressure rod and the lower pressure plate to move, and together with the lower pressure spring, the paper is clamped to prevent the paper from shifting when not feeding. At the same time, when feeding paper, the clamping plate is raised, and after the top layer of paper moves, the lower pressure plate presses down the next layer of paper, which facilitates the separation of paper and realizes single-sheet feeding, while improving the stability of paper feeding.

[0018] 2. The moving screw is driven by the moving motor to rotate, which in turn drives the moving block and the moving sleeve to move as a whole. The height of the drive mechanism is adjusted. By setting the moving plate and the moving spring, the moving block has a downward elastic force on the moving sleeve, which causes the drive roller of the drive mechanism to press down the paper and prevent the slippage between the drive roller and the paper from affecting the paper feeding.

[0019] 3. The adjustment plate is moved by the drive cylinder, which in turn moves the adjustment rod and adjustment block to the bottom of the feeding box and limits their movement. The support plate is slidably set on the feeding box to support the paper, so that the feeding box and feeding mechanism can be adapted to paper of different sizes and specifications. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a feeding mechanism for a digital printing machine according to the present invention;

[0021] Figure 2 This is a schematic diagram of the cooperative structure of the feeding platform, clamping rod, clamping plate, lowering rod, lowering plate and lowering spring in this utility model;

[0022] Figure 3 This is a schematic diagram of the cooperative structure of the movable frame and the drive mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the cooperative structure of the movable frame, movable motor, movable screw, movable sleeve and movable block in this utility model;

[0024] Figure 5 This is a bottom view of the feeding box in this utility model.

[0025] In the diagram: 1. Feeding table; 2. Feeding box; 3. Pressing rod; 4. Pressing plate; 5. Lowering rod; 6. Lowering plate; 7. Lowering spring; 8. Moving frame; 9. Moving block; 10. Moving motor; 11. Moving screw; 12. Moving sleeve; 13. Moving plate; 14. Moving spring; 15. Cam; 16. Pressing ring; 17. Pressing frame; 18. Pressing motor; 19. Limiting block; 20. Limiting groove; 21. Drive motor; 22. Drive shaft; 23. Drive roller; 24. Adjusting plate; 25. Adjusting rod; 26. Adjusting block; 27. Support plate; 28. Drive cylinder. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A feeding mechanism for a digital printing machine includes a feeding table 1 and a feeding box 2. A clamping rod 3 is rotatably mounted on one side of the feeding table 1 via a torsion spring. A clamping plate 4 is mounted at one end of the clamping rod 3. A lowering rod 5 slides on the clamping plate 4. A lowering plate 6 is mounted at one end of the lowering rod 5. A lowering spring 7 is located between the lowering plate 6 and the clamping plate 4. A movable frame 8 is mounted on the feeding table 1. A movable block 9 slides on the movable frame 8. A movable motor 10 is mounted on the movable frame 8. A movable screw 11 is mounted on the motor shaft of the movable motor 10. A movable sleeve 12, which cooperates with the movable screw 11, is mounted on the movable block 9. Movable plates 13 are located on the upper and lower sides of the movable sleeve 12. A moving spring 14 is provided between the upper moving plate 13 and the moving block 9. A driving mechanism is provided on the moving block 9. A cam 15 is rotatably provided at one end of the feeding table 1. A clamping ring 16 that cooperates with the cam 15 is provided at one end of the clamping rod 3. A clamping frame 17 is also provided on one side of the feeding table 1. A clamping motor 18 is provided on the clamping frame 17. The motor shaft of the clamping motor 18 is fixedly connected to the cam 15. A limit block 19 is provided on the moving sleeve 12. A limit groove 20 that cooperates with the limit block 19 is provided on the moving block 9. The driving mechanism includes a driving motor 21. A driving shaft 22 is provided on the motor shaft of the driving motor 21. A driving roller 23 is provided on the driving shaft 22.

[0030] In this embodiment, during use, the moving motor 10 is started, driving the moving screw 11 to rotate, which in turn drives the moving sleeve 12 and the moving block 9 to move upward. The moving block 9 drives the drive mechanism to move upward, feeding the paper into the printing press through the feeding box 2. The short shaft of the cam 15 abuts against the clamping ring 16, causing the clamping rod 3 to drive the clamping plate 4 to rotate downward, and clamping and fixing the paper through the lower pressure rod 5, the lower pressure spring 7, and the lower pressure plate 6. When printing is required, the moving motor 10 is started, driving the moving screw 11 to reverse, causing the moving sleeve 12 and the moving block 9 to move downward and compress the moving spring 14, thus starting the printing press. The drive motor 21 drives the drive shaft 22 and drive roller 23 to rotate. The paper is conveyed by the elastic force between the drive roller 23 and the paper. At the same time, the pressure motor 18 is started, which drives the cam 15 to rotate. When the long shaft end of the cam 15 abuts against the pressure ring 16, it drives the pressure plate 4 to rotate upward, so that the lower pressure rod 5 and the lower pressure plate 6 move upward. When the lower pressure plate 6 leaves the paper, the uppermost layer of paper is conveyed. Then, the short shaft of the cam 15 continues to abut against the pressure ring 16, so that the lower pressure plate 6 presses against the next layer of paper, which facilitates the separation of paper and realizes single-sheet paper feeding, while improving the stability of paper feeding.

[0031] Please see Figure 5 As an embodiment of the feeding mechanism of a digital printing machine for the feeding box 2: an adjusting plate 24 is provided on one side of the feeding box 2, an adjusting rod 25 is provided at one end of the adjusting plate 24, and an adjusting block 26 is provided at one end of the adjusting rod 25. The adjusting rod 25 and the adjusting block 26 are slidably disposed at the bottom of the feeding box 2. A support plate 27 is also provided between the adjusting plate 24 and the feeding box 2. The support plate 27 is slidably disposed at the top of the feeding box 2. A driving cylinder 28 is provided at the bottom of the feeding box 2. The output end of the driving cylinder 28 is fixedly connected to the adjusting plate 24.

[0032] More specifically, when feeding paper, the size of the feeding box 2 is adjusted according to the type of paper to be printed, and the drive cylinder 28 is activated. The drive cylinder 28 drives the adjustment plate 24 to move. The adjustment plate 24 moves at the bottom of the feeding box 2 through the adjustment rod 25 and the adjustment block 26. At the same time, the support plate 27 moves at the top of the feeding box 2 to support the paper, thereby facilitating the adjustment of the size of the feeding box 2 according to the type of paper.

[0033] In summary, during the use or operation of the overall equipment: When in use, the moving motor 10 is started, driving the moving screw 11 to rotate, which in turn drives the moving sleeve 12 and the moving block 9 to move upwards. The moving block 9 drives the drive mechanism to move upwards, feeding paper into the printing press through the feeding box 2. The short shaft of the cam 15 abuts against the clamping ring 16, causing the clamping rod 3 to drive the clamping plate 4 to rotate downwards. The paper is then clamped and fixed by the lower pressure rod 5, the lower pressure spring 7, and the lower pressure plate 6. When printing is required, the moving motor 10 is started, driving the moving screw 11 to reverse, causing the moving sleeve 12 and the moving block 9 to move downwards and compress the moving spring. Spring 14 starts the drive motor 21, which drives the drive shaft 22 and drive roller 23 to rotate. The paper is conveyed by the elastic force between the drive roller 23 and the paper. At the same time, the pressure motor 18 is started, which drives the cam 15 to rotate. When the long shaft end of the cam 15 abuts against the pressure ring 16, it drives the pressure plate 4 to rotate upward, causing the lower pressure rod 5 and the lower pressure plate 6 to move upward. When the lower pressure plate 6 leaves the paper, the uppermost layer of paper is conveyed. Subsequently, the short shaft of the cam 15 continues to abut against the pressure ring 16, so that the lower pressure plate 6 presses against the next layer of paper, which facilitates paper separation, realizes single-sheet paper feeding, and improves paper feeding stability.

[0034] When feeding paper, the size of the feeding box 2 is adjusted according to the type of paper to be printed. The drive cylinder 28 is activated, which drives the adjustment plate 24 to move. The adjustment plate 24 moves at the bottom of the feeding box 2 via the adjustment rod 25 and the adjustment block 26. At the same time, the support plate 27 moves at the top of the feeding box 2 to support the paper, thus facilitating the adjustment of the size of the feeding box 2 according to the type of paper.

[0035] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0036] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0037] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here.

[0038] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

Claims

1. A feeding mechanism for a digital printing machine, comprising a feeding table (1) and a feeding box (2), characterized in that: The feeding platform (1) has a pressing rod (3) rotatably mounted on one side via a torsion spring. One end of the pressing rod (3) is provided with a pressing plate (4). A lower pressing rod (5) is slidably mounted on the pressing plate (4). A lower pressing plate (6) is provided at one end of the lower pressing rod (5). A lower pressing spring (7) is provided between the lower pressing plate (6) and the pressing plate (4). The feeding platform (1) is provided with a moving frame (8). A moving block (9) is slidably mounted on the moving frame (8). A moving motor (10) is provided on the moving frame (8). A moving screw (11) is provided on the motor shaft of the moving motor (10). A moving sleeve (12) that cooperates with the moving screw (11) is provided on the moving block (9). Moving plates (13) are provided on the upper and lower sides of the moving sleeve (12). A moving spring (14) is provided between the upper moving plate (13) and the moving block (9). A driving mechanism is provided on the moving block (9).

2. The feeding mechanism for a digital printing machine according to claim 1, characterized in that: The feeding table (1) is rotatably provided with a cam (15) at one end, and a clamping ring (16) that cooperates with the cam (15) is provided at one end of the clamping rod (3).

3. The feeding mechanism for a digital printing machine according to claim 2, characterized in that: The feeding table (1) is also provided with a clamping frame (17) on one side, and a clamping motor (18) is provided on the clamping frame (17). The motor shaft of the clamping motor (18) is fixedly connected to the cam (15).

4. The feeding mechanism for a digital printing machine according to claim 1, characterized in that: The movable sleeve (12) is provided with a limiting block (19), and the movable block (9) is provided with a limiting groove (20) that cooperates with the limiting block (19).

5. The feeding mechanism for a digital printing machine according to claim 1, characterized in that: The driving mechanism includes a drive motor (21), a drive shaft (22) is provided on the motor shaft of the drive motor (21), and a drive roller (23) is provided on the drive shaft (22).

6. The feeding mechanism for a digital printing machine according to claim 1, characterized in that: An adjusting plate (24) is provided on one side of the feeding box (2), an adjusting rod (25) is provided at one end of the adjusting plate (24), and an adjusting block (26) is provided at one end of the adjusting rod (25). The adjusting rod (25) and the adjusting block (26) are slidably disposed at the bottom of the feeding box (2).

7. The feeding mechanism for a digital printing machine according to claim 6, characterized in that: A support plate (27) is also provided between the adjusting plate (24) and the feeding box (2), and the support plate (27) is slidably disposed on the top of the feeding box (2).

8. The feeding mechanism for a digital printing machine according to claim 7, characterized in that: The bottom of the feeding box (2) is provided with a driving cylinder (28), and the output end of the driving cylinder (28) is fixedly connected to the adjusting plate (24).

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