Paper printing flattening device of printing machine

Abstract

The utility model belongs to the technical field of paper printing, and discloses a paper printing flattening device of a printing machine, which comprises a rack, a conveying platform is mounted on the rack, a mounting frame is arranged above the conveying platform, the mounting frame is connected with the rack, and a hot air assembly, a flattening assembly and a pressing assembly are sequentially arranged on the mounting frame from front to back. The ion generator and the air heater are used for discharging ion hot air, the ion hot air is blown to paper, heat can dry and heat the paper, moisture of the paper is removed, the paper is heated and softened so that the paper can be flattened better, and ions can eliminate static electricity and reduce attachment of dust particles. The flattening roller is controlled to flatten the paper from inside to outside in the front, back, left and right directions of the paper, paper wrinkles can be eliminated, paper flatness is guaranteed, and better paper flatness is achieved in cooperation with the flattening assembly.

Description

Technical Field

[0001] This utility model belongs to the field of paper printing technology, specifically a paper printing flattening device for a printing press. Background Technology

[0002] A printing press is a machine used to print text and images. Modern printing presses generally consist of mechanisms such as plate mounting, inking, printing, and paper feeding. First, the text and images to be printed are made into a printing plate, which is then mounted on the printing press. Then, ink is applied to the areas on the printing plate containing text and images by hand or by the printing press. The ink is then transferred directly or indirectly to paper or other printing substrates, thereby reproducing printed materials identical to the printing plate.

[0003] Chinese Patent Application No. 202420500374.9 discloses a paper printing leveling device for a printing press, including a leveling device body and a conveying mechanism. The leveling device body is equipped with a leveling component, which includes a cylinder, a mounting plate, and a pressure roller. A first guide block is fixed to the inner wall of the leveling device body. A groove is formed in the top inner wall of the leveling device body, and a slider is slidably connected to the inner wall of the groove. A connecting rod is fixed to the lower surface of the slider, and a second guide block is fixed to the lower end of the connecting rod. A driving component is installed on the leveling device body. When it is necessary to press the paper edge, the operator places the paper on the conveying mechanism and places it next to the side wall of the first guide block. The driving component then drives the slider to move within the groove, causing the connecting rod and the second guide block to move towards the first guide block. This allows the second guide block to engage with the first guide block and press the paper edge. By adjusting the cylinder, the pressure roller presses the paper to level it, reducing the probability of the paper shifting on the conveying mechanism and facilitating the pressing of papers of different widths.

[0004] However, the paper printing flattening device of the above-mentioned printing press has the following shortcomings in actual use: sometimes the paper will have certain wrinkles due to dampness or other reasons. When the pressure roller passes by, the wrinkles may become more serious, which is not conducive to the flatness of the paper.

[0005] Therefore, a paper printing leveling device for printing presses is proposed to address the above-mentioned problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a paper printing flattening device for a printing press, which has the advantages of using ion hot air to dry and heat the paper, remove dust particles and other adhering substances, and flatten the paper in four directions (front, back, left, and right) to ensure the flatness of the paper.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a paper printing flattening device for a printing press, including a frame, a conveying platform mounted on the frame, a mounting frame above the conveying platform, the mounting frame being connected to the frame, and a hot air assembly, a flattening assembly, and a pressing assembly being arranged sequentially from front to back on the mounting frame;

[0008] The hot air assembly includes a hot air blower mounted on a mounting frame. The inlet of the hot air blower is connected to an ion generator via a pipe. The inlet of the ion generator is connected to an air inlet via a pipe. The outlet of the hot air blower is connected to an exhaust pipe via a pipe. The bottom of the exhaust pipe is provided with a hot air outlet.

[0009] The flattening assembly includes a first cylinder mounted on a mounting frame. The piston rod of the first cylinder is connected to a U-shaped component. A rotary drive assembly is mounted on the U-shaped component. The rotary drive assembly is connected to a crossbeam. A displacement drive assembly is mounted on the crossbeam. The displacement drive assembly is connected to a bracket. A flattening roller is mounted on the bracket.

[0010] Preferably, the conveying platform includes a driving roller and a driven roller mounted on a frame, a conveyor belt connecting the driving roller and the driven roller, and a first motor connected to one end of the driving roller via a motor shaft.

[0011] Preferably, the flattening assembly includes a second cylinder mounted on a mounting bracket, the piston rod of the second cylinder being connected to a flattening plate.

[0012] Preferably, the rotary drive assembly includes a second motor mounted on the U-shaped component. The second motor is connected to a drive gear via a motor shaft. The drive gear meshes with a driven gear. The driven gear is fixedly connected to a rotating column. The top end of the rotating column is connected to the U-shaped component via a connecting bearing. The bottom end of the rotating column is fixedly connected to a crossbeam.

[0013] Preferably, the displacement drive assembly includes a lead screw and a positioning slide rod correspondingly arranged on the crossbeam. One end of the lead screw passes through the crossbeam and is connected to a third motor. Two symmetrically arranged moving blocks are connected between the lead screw and the positioning slide rod. The bottom of the moving blocks is fixedly connected to a bracket.

[0014] Preferably, the lead screw has symmetrically arranged threads with opposite directions, the lead screw is threadedly connected to a moving block, and the two moving blocks move in opposite directions, and the positioning slide rod passes through the moving block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model sets up a hot air component, uses an ion generator and a hot air blower to discharge ion hot air, blows the ion hot air onto the paper, the heat dries and heats the paper, removes the moisture from the paper, and makes the paper soften by heat so that it can be better flattened. Ions can eliminate static electricity and reduce the adhesion of dust particles.

[0017] 2. This utility model, by setting up a flattening component, controls the flattening roller to flatten the paper from the inside out in four directions: front, back, left, and right. This can ensure the elimination of paper wrinkles and the flatness of the paper. In conjunction with the pressing component, it can achieve better flatness of the paper. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the hot air assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the flattening component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the rotary drive assembly of this utility model;

[0022] Figure 5 This is a schematic diagram of the displacement drive assembly of this utility model;

[0023] Figure 6 This is a schematic diagram of the flattening component of this utility model;

[0024] Figure 7 This is a schematic diagram of the conveying platform of this utility model.

[0025] In the diagram: 1. Frame;

[0026] 2. Conveying platform; 21. Driven roller; 22. Driven roller; 23. Conveyor belt; 24. First motor;

[0027] 3. Mounting bracket;

[0028] 4. Hot air assembly; 41. Hot air blower; 42. Ion generator; 43. Air inlet; 44. Exhaust duct; 45. Hot air outlet;

[0029] 5. Flattening assembly; 51. First cylinder; 52. U-shaped component;

[0030] 53. Rotary drive assembly; 531. Second motor; 532. Drive gear; 533. Driven gear; 534. Rotating column; 535. Connecting bearing;

[0031] 54. Crossbeam; 55. Displacement drive assembly; 551. Lead screw; 552. Positioning slide bar; 553. Third motor; 554. Moving block;

[0032] 56. Support frame; 57. Flattening roller;

[0033] 6. Flattening assembly; 61. Second cylinder; 62. Flattening plate. Detailed Implementation

[0034] 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.

[0035] like Figures 1 to 7 As shown, this utility model provides a paper printing flattening device for a printing press, including a frame 1, a conveyor platform 2 installed on the frame 1, a mounting frame 3 above the conveyor platform 2, the mounting frame 3 being connected to the frame 1, and a hot air assembly 4, a flattening assembly 5, and a pressing assembly 6 arranged sequentially from front to back on the mounting frame 3.

[0036] The hot air assembly 4 includes a hot air blower 41 mounted on the mounting frame 3. The inlet of the hot air blower 41 is connected to an ion generator 42 via a pipe. The inlet of the ion generator 42 is connected to an air inlet 43 via a pipe. The outlet of the hot air blower 41 is connected to an exhaust pipe 44 via a pipe. The bottom of the exhaust pipe 44 is provided with a hot air outlet 45. The ion generator 42 and the hot air blower 41 discharge ion hot air, which is blown onto the paper. The heat dries and heats the paper, removes the moisture from the paper, and softens the paper by heating, so that it can be flattened better. Ions can eliminate static electricity and reduce the adhesion of dust particles.

[0037] The flattening assembly 5 includes a first cylinder 51 mounted on the mounting frame 3. The piston rod of the first cylinder 51 is connected to a U-shaped component 52. A rotary drive assembly 53 is mounted on the U-shaped component 52. The rotary drive assembly 53 is connected to a crossbeam 54. A displacement drive assembly 55 is mounted on the crossbeam 54. The displacement drive assembly 55 is connected to a bracket 56. A flattening roller 57 is mounted on the bracket 56. The flattening roller 57 is controlled to flatten the paper from the inside out in four directions: front, back, left, and right. This can ensure the elimination of paper wrinkles and the flatness of the paper. In conjunction with the flattening assembly 6, it can achieve better flatness of the paper.

[0038] Specifically, the conveying platform 2 includes a driving roller 21 and a driven roller 22 installed on the frame 1. A conveyor belt 23 is connected between the driving roller 21 and the driven roller 22. One end of the driving roller 21 is connected to a first motor 24 through a motor shaft, which is used to convey paper to the hot air assembly 4, the flattening assembly 5, and the pressing assembly 6 respectively.

[0039] Furthermore, the flattening assembly 6 includes a second cylinder 61 mounted on the mounting bracket 3, and the piston rod of the second cylinder 61 is connected to a pressure plate 62, which is used to further flatten the paper.

[0040] Furthermore, the rotary drive assembly 53 includes a second motor 531 mounted on the U-shaped part 52. The second motor 531 is connected to a drive gear 532 via a motor shaft. The drive gear 532 is meshed with a driven gear 533. The driven gear 533 is fixedly connected to a rotating column 534. The top end of the rotating column 534 is connected to the U-shaped part 52 via a connecting bearing 535. The bottom end of the rotating column 534 is fixedly connected to a crossbeam 54. The crossbeam 54, the displacement drive assembly 55 on it, the support 56, and the flattening roller 57 are driven to rotate 90 degrees, thereby achieving flattening of the paper in four directions: front, back, left, and right.

[0041] It is worth noting that the displacement drive assembly 55 includes a lead screw 551 and a positioning slide bar 552 correspondingly arranged on the crossbar 54. One end of the lead screw 551 passes through the crossbar 54 and is connected to a third motor 553. Two symmetrically arranged moving blocks 554 are connected between the lead screw 551 and the positioning slide bar 552. The bottom of the moving blocks 554 is fixedly connected to a bracket 56, which controls the two flattening rollers 57 to move away from each other to flatten the paper.

[0042] It is worth noting that the lead screw 551 is provided with symmetrically arranged threads in opposite directions. The lead screw 551 is threadedly connected to the moving block 554, and the two moving blocks 554 move in opposite directions. The positioning slide rod 552 passes through the moving block 554.

[0043] Among them, the first motor 24, hot air blower 41, ion generator 42, first cylinder 51, second motor 531, third motor 553, and second cylinder 61 are existing technologies and will not be described in detail. At the same time, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail.

[0044] Working principle and process: The paper is placed on the conveyor platform 2, the first motor 24 is started, and the active roller 21 and the driven roller 22 drive the conveyor belt 23 to rotate, thus conveying the paper to the hot air assembly 4. The hot air blower 41 is started, and outside air enters through the air inlet 43, carries ions after passing through the ion generator 42, and then forms hot air after passing through the hot air blower 41. The ionized hot air is discharged through the exhaust pipe 44 and the hot air outlet 45. The heat dries and heats the paper, removes the moisture from the paper, and softens the paper for better flatness. The ions can eliminate static electricity and reduce the adhesion of dust particles. Then the paper is conveyed from the conveyor platform 2 to the flattening assembly 5. The first cylinder 51 drives the flattening roller 57 to move down and press on the paper. The third motor 553 of the displacement drive assembly 55 is started, and the lead screw 55... 1. Rotation causes the moving blocks 554 to move away from each other under the action of the thread and positioning slide rod 552, and drives the bracket 56 and flattening roller 57 to move away from each other, so as to flatten the paper in the left and right directions. Then the first cylinder 51 retracts and the displacement drive assembly 55 is activated, so that the flattening roller 57 returns to the middle position. The second motor 531 of the rotation drive assembly 53 is activated, and then the drive gear 532 drives the driven gear 533 to rotate. Then the rotating column 534 drives the cross frame 54, the displacement drive assembly 55, the bracket 56, and the flattening roller 57 to rotate 90 degrees, so that the first cylinder 51 extends again. Repeat the above operation to flatten the paper in the front and back directions. Then the paper is conveyed to the flattening assembly 6 position, the second cylinder 61 extends, so that the pressure plate 62 presses on the paper, so that the paper can be flattened better.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper printing leveling device for a printing press, comprising a frame (1), characterized in that: A conveying platform (2) is installed on the frame (1), and a mounting frame (3) is provided above the conveying platform (2). The mounting frame (3) is connected to the frame (1), and a hot air assembly (4), a flattening assembly (5), and a pressing assembly (6) are arranged on the mounting frame (3) from front to back. The hot air assembly (4) includes a hot air blower (41) mounted on a mounting bracket (3). The inlet of the hot air blower (41) is connected to an ion generator (42) via a pipe. The inlet of the ion generator (42) is connected to an air inlet (43) via a pipe. The outlet of the hot air blower (41) is connected to an exhaust pipe (44) via a pipe. The bottom of the exhaust pipe (44) is provided with a hot air outlet (45). The flattening assembly (5) includes a first cylinder (51) mounted on a mounting frame (3), the piston rod of the first cylinder (51) is connected to a U-shaped part (52), a rotary drive assembly (53) is mounted on the U-shaped part (52), a crossbeam (54) is connected to the rotary drive assembly (53), a displacement drive assembly (55) is mounted on the crossbeam (54), a bracket (56) is connected to the displacement drive assembly (55), and a flattening roller (57) is mounted on the bracket (56).

2. The paper printing flattening device for a printing press according to claim 1, characterized in that: The conveying platform (2) includes a driving roller (21) and a driven roller (22) installed on the frame (1). A conveyor belt (23) is connected between the driving roller (21) and the driven roller (22). One end of the driving roller (21) is connected to a first motor (24) via a motor shaft.

3. The paper printing leveling device for a printing press according to claim 1, characterized in that: The flattening assembly (6) includes a second cylinder (61) mounted on a mounting bracket (3), and the piston rod of the second cylinder (61) is connected to a flat plate (62).

4. The paper printing flattening device for a printing press according to claim 1, characterized in that: The rotary drive assembly (53) includes a second motor (531) mounted on a U-shaped component (52). The second motor (531) is connected to a drive gear (532) via a motor shaft. The drive gear (532) is meshed with a driven gear (533). The driven gear (533) is fixedly connected to a rotating column (534). The top end of the rotating column (534) is connected to the U-shaped component (52) via a connecting bearing (535). The bottom end of the rotating column (534) is fixedly connected to a crossbeam (54).

5. The paper printing leveling device for a printing press according to claim 1, characterized in that: The displacement drive assembly (55) includes a lead screw (551) and a positioning slide rod (552) correspondingly arranged on the cross frame (54). One end of the lead screw (551) passes through the cross frame (54) and is connected to a third motor (553). Two symmetrically arranged moving blocks (554) are connected between the lead screw (551) and the positioning slide rod (552). The bottom of the moving blocks (554) is fixedly connected to a bracket (56).

6. The paper printing flattening device for a printing press according to claim 5, characterized in that: The lead screw (551) is provided with symmetrically arranged threads in opposite directions. The lead screw (551) is threadedly connected to the moving block (554), and the two moving blocks (554) move in opposite directions. The positioning slide rod (552) passes through the moving block (554).

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