Paper feeding anti-blocking structure

Abstract

The utility model relates to the technical field of printing machine paper feeding, and discloses a paper feeding anti-blocking structure which comprises a base and a printing machine body installed above the base, a paper feeding opening is formed in one side of the printing machine body, and a paper feeding conveying plate extending out of a printing machine body is installed in the paper feeding opening; a positioning assembly used for adjusting paper boards to be fed in the middle is arranged below the paper feeding conveying plate and comprises a positioning box body fixedly installed above the base, sliding grooves are symmetrically formed in the upper end face of the positioning box body, and L-shaped sliding frames are installed in the sliding grooves in a sliding mode; an auxiliary paper feeding mechanism is arranged at the position, extending to the position above the paper feeding conveying plate, of one end of each L-shaped sliding frame, and a driving piece used for driving the two L-shaped sliding frames to move at the same time is installed in the positioning box body. And therefore, the situation that the paperboards are prone to being blocked in the equipment due to the fact that the paperboards deviate to one side during conveying is avoided, and normal operation of the equipment is guaranteed.

Description

Technical Field

[0001] This application relates to the field of paper feeding technology for printing presses, and in particular to a paper feeding anti-jamming structure. Background Technology

[0002] A printing press is a machine for printing text and images. The working principle is to first make a printing plate of the text and images to be printed, load it onto the printing press, and then apply ink to the areas of the printing plate with text and images by hand or by the printing press. The ink is then transferred directly or indirectly to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wood, glass and ceramics) to reproduce a printed product identical to the printing plate.

[0003] Modern water-based ink printing presses generally consist of mechanisms for plate mounting, inking, printing, and paper feeding (including folding). When printing on paperboard, the paperboard needs to be fed. However, current water-based ink printing presses lack a centering adjustment mechanism for the paperboard during feeding, causing the paperboard to be fed to one side. This can easily lead to the paperboard getting stuck inside the equipment, affecting normal operation and reducing its usability. Utility Model Content

[0004] To address the problem that existing water-based ink printing presses lack a centering adjustment structure for the paperboard during feeding, causing the paperboard to be fed to one side and easily jammed inside the equipment, thus affecting normal operation and reducing its usability, this application provides a paper feeding anti-jamming structure.

[0005] The paper feeding anti-jamming structure provided in this application adopts the following technical solution:

[0006] A paper feeding anti-jamming structure includes a base and a printing press body mounted on the base. A paper inlet is provided on one side of the printing press body, and a paper feed conveyor plate extending out of the printing press body is installed inside the paper inlet. A positioning component for adjusting the centered feeding of the paperboard is provided below the paper feed conveyor plate. The positioning component includes a positioning box fixedly mounted on the base. A sliding groove is symmetrically provided on the upper surface of the positioning box. An L-shaped sliding frame is slidably installed inside the sliding groove. One end of the L-shaped sliding frame extends above the paper feed conveyor plate and is provided with an auxiliary paper feeding mechanism. A driving component for simultaneously driving the movement of two L-shaped sliding frames is installed inside the positioning box.

[0007] Preferably, the auxiliary paper feeding mechanism includes a positioning seat fixed to one end of an L-shaped sliding frame, and a groove is provided on one side of the positioning seat, in which multiple auxiliary conveying rollers are installed at equal intervals.

[0008] Preferably, a fixing groove is provided on one side of the groove, an infrared sensor is installed in the fixing groove, and a controller electrically connected to the infrared sensor is installed on one side wall of the positioning box.

[0009] Preferably, the driving component includes a bidirectional screw rotatably mounted inside the positioning box, a motor fixedly mounted on the side wall of the positioning box, and sliders helically mounted at both ends of the bidirectional screw. One end of the bidirectional screw is fixedly connected to the output end of the motor, and the two L-shaped sliding frames pass through the positioning box and are fixedly connected to the two sliders.

[0010] Preferably, a heating chamber is provided in the middle of the positioning box, a filter screen is installed at the air outlet of the heating chamber, a plurality of air inlets connected to the air outlet of the heating chamber are provided on the paper feeding conveyor plate, a fan is installed inside the heating chamber, and an electric heating wire is fixedly installed above the fan.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This paper feeding anti-jamming structure uses a positioning component to center the paperboard on the paper feed conveyor. During adjustment, the drive unit can simultaneously drive two sliding frames to move towards each other towards the paperboard, thereby correcting and centering the paperboard during transport. After centering, the paperboard enters the water-based ink printer for printing, thus preventing the paperboard from being biased to one side and easily getting stuck inside the equipment, ensuring the normal operation of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the entire utility model;

[0015] Figure 3 This is a schematic diagram of the internal mechanism of the positioning box in this utility model;

[0016] Figure 4 This is a side view of the positioning seat in this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Base; 2. Printing machine body; 4. Paper feed conveyor plate; 5. Positioning box; 6. L-shaped sliding frame; 7. Slide groove; 8. Positioning seat; 9. Groove; 10. Auxiliary conveyor roller; 11. Infrared sensor; 12. Controller; 13. Bidirectional screw; 14. Motor; 15. Slider; 16. Heating chamber; 17. Fan; 18. Heating wire; 19. Air inlet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 4 This utility model provides a technical solution:

[0020] A paper feeding anti-jamming structure includes a base 1 and a printing press body 2 installed on the base 1. A paper inlet is provided on one side of the printing press body 2. A paper feed conveyor plate 4 extending out of the printing press body 2 is installed in the paper inlet. A positioning component for adjusting the paperboard to feed in the center is provided below the paper feed conveyor plate 4. The positioning component includes a positioning box 5 fixedly installed on the base 1. A sliding groove 7 is symmetrically provided on the upper end of the positioning box 5. An L-shaped sliding frame 6 is slidably installed inside the sliding groove 7. One end of the L-shaped sliding frame 6 extends above the paper feed conveyor plate 4 and is provided with an auxiliary paper feeding mechanism. A driving component for simultaneously driving the movement of the two L-shaped sliding frames 6 is installed inside the positioning box 5.

[0021] This anti-jamming structure for the paper feed of the printing press 1 works by placing the paperboard on the paper feed conveyor plate 4 and conveying it into the printing press 1 for printing. The positioning component is used to center the paperboard on the paper feed conveyor plate 4. During adjustment, the drive unit can simultaneously drive two L-shaped sliding frames 6 to move towards the paperboard, thereby correcting and centering the paperboard in the conveying state. After centering, the paperboard enters the printing press 1 for printing, thus avoiding the paperboard from being biased to one side and easily getting jammed inside the equipment, ensuring the normal operation of the equipment.

[0022] The auxiliary paper feeding mechanism includes a positioning seat 8 fixed to one end of the L-shaped sliding frame 6. A groove 9 is provided on one side of the positioning seat 8. Multiple auxiliary conveying rollers 10 are installed at equal intervals in the groove 9. When the paperboard is centered, the paperboard will contact the auxiliary conveying rollers 10 in the positioning seat 8 to achieve the effect of auxiliary conveying.

[0023] A fixing groove is provided on one side of the groove 9, and an infrared sensor 11 is installed in the fixing groove. A controller 12 that is electrically connected to the infrared sensor 11 is installed on one side wall of the positioning box 5.

[0024] The driving components include a bidirectional screw 13 rotatably installed inside the positioning box 5, a motor 14 fixedly installed on the side wall of the positioning box 5, and sliders 15 with helical drive installed at both ends of the bidirectional screw 13. One end of the bidirectional screw 13 is fixedly connected to the output end of the motor 14, and two L-shaped sliding frames 6 pass through the positioning box 5 and are fixedly connected to the two sliders 15.

[0025] When centering the cardboard, the start motor 14 drives the bidirectional screw 13 to rotate, thereby causing the two sliders 15 to move in a straight line in opposite directions on the bidirectional screw 13. At the same time, the two L-shaped sliding frames 6 and the positioning seats 8 move towards the cardboard until the two positioning seats 8 contact the two sides of the cardboard. At this time, the infrared sensor 11 (model TCRT1000) will send a signal to the controller 12 (using the existing STM32 microcontroller). The controller 12 starts the motor 14 and then stops it. The centering of the cardboard is completed. Since the two positioning seats 8 are symmetrically arranged above the paper feed plate 4, the distance that the motor 14 drives the two positioning seats 8 to move is the same. Therefore, when the cardboard is fed between the two positioning seats 8, no matter what position the cardboard is in at this time, as long as the two positioning seats 8 are aligned and in contact with the two sides of the cardboard, the cardboard is in the center position of the paper feed plate 4.

[0026] A heating chamber 16 is provided in the center of the positioning box 5. A filter screen is installed at the air outlet of the heating chamber 16. Several air inlets 19 connected to the air outlet of the heating chamber 16 are provided on the paper feed plate 4. A fan 17 is installed inside the heating chamber 16, and an electric heating wire 18 is fixedly installed above the fan 17.

[0027] By setting the fan 17 to work, the cardboard is blown to prevent it from jamming. Then, the heating wire 18 is used to heat the cardboard, so that the blown air is hot. The heating effect improves the flatness of the cardboard and further prevents jamming.

[0028] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0029] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paper feeding anti-jamming structure, comprising a base (1) and a printing press body (2) mounted above the base (1), wherein a paper feed port is provided on one side of the printing press body (2), and a paper feed conveyor plate (4) extending to the outside of the printing press body (2) is installed in the paper feed port, characterized in that: Below the paper feed conveyor plate (4) is a positioning component for adjusting the paperboard to be fed in the center. The positioning component includes a positioning box (5) fixedly installed above the base (1). The upper end of the positioning box (5) is symmetrically provided with a sliding groove (7). An L-shaped sliding frame (6) is slidably installed inside the sliding groove (7). One end of the L-shaped sliding frame (6) extends to the top of the paper feed conveyor plate (4) and is provided with an auxiliary paper feeding mechanism. The positioning box (5) is equipped with a driving component for simultaneously driving the two L-shaped sliding frames (6) to move.

2. The paper feeding anti-jamming structure according to claim 1, characterized in that: The auxiliary paper feeding mechanism includes a positioning seat (8) fixed at one end of an L-shaped sliding frame (6). A groove (9) is provided on one side of the positioning seat (8), and multiple auxiliary conveying rollers (10) are installed at equal intervals in the groove (9).

3. The paper feeding anti-jamming structure according to claim 2, characterized in that: A fixing groove is provided on one side of the groove (9), and an infrared sensor (11) is installed in the fixing groove. A controller (12) electrically connected to the infrared sensor (11) is installed on one side wall of the positioning box (5).

4. The paper feeding anti-jamming structure according to claim 3, characterized in that: The driving component includes a bidirectional screw (13) rotatably installed in the positioning box (5), a motor (14) fixedly installed on the side wall of the positioning box (5), and sliders (15) helically installed at both ends of the bidirectional screw (13). One end of the bidirectional screw (13) is fixedly connected to the output end of the motor (14), and the two L-shaped sliding frames (6) respectively penetrate into the positioning box (5) and are fixedly connected to the two sliders (15).

5. The paper feeding anti-jamming structure according to claim 4, characterized in that: A heating chamber (16) is provided in the middle of the positioning box (5). A filter screen is installed at the air outlet of the heating chamber (16). Several air inlets (19) connected to the air outlet of the heating chamber (16) are opened on the paper feeding conveyor plate (4). A fan (17) is installed inside the heating chamber (16), and an electric heating wire (18) is fixedly installed above the fan (17).

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