A double-sided printing mechanism of a printing machine

Abstract

The utility model discloses a double -sided printing mechanism of printing machine relates to printing mechanism technical field, including mounting panel, both sides of mounting panel top all are fixedly installed with axle rest, the inside rotation of axle rest is installed with mounting shaft, the outside installation of mounting shaft has two reversing roller, the inside all is provided with recess around reversing roller, the utility model has the beneficial effect for: through reversing roller, recess, fixed -distance disc, dial slot, disc, pole, worm wheel and the setting of worm, when material one side prints and completes, through the continuous conveyance of conveyer belt to material and sends material into recess inside, subsequently through the opening servo motor drive worm rotation, worm and worm wheel engage after drive disc and pole rotation, can through pole and dial slot cooperation drive fixed -distance disc and reversing roller clockwise rotation 90 DEG, so rotates twice after can make material carries out and turns over, subsequently to the other side printing of material, and printing efficiency is high, and printing is convenient and fast to use.

Description

Technical Field

[0001] This utility model relates to the field of printing mechanism technology, specifically to a double-sided printing mechanism for a printing press. Background Technology

[0002] A printing press is a machine for printing text and images. A modern printing press generally consists of mechanisms for mounting the printing plate, inking, printing, and paper feeding (including folding). Its working principle is as follows: First, the text and images to be printed are made into a printing plate and mounted on the printing press. Then, ink is applied 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] Currently, existing printing presses can only perform single-sided printing. Some materials (such as paper bags) require printing on both sides, thus necessitating the use of a double-sided printing mechanism. To address this, we propose a double-sided printing mechanism for a printing press. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a double-sided printing mechanism for a printing press, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-sided printing mechanism for a printing press, comprising a mounting plate, on both sides of the top of the mounting plate being fixedly mounted with shaft brackets, a mounting shaft being rotatably mounted inside the shaft brackets, two reversing rollers being mounted on the outer side of the mounting shafts, grooves being formed around the reversing rollers, a spacer plate being fixedly mounted at one end of the mounting shaft, a slot being formed around the spacer plate, a rotating shaft being rotatably mounted on one side of the shaft brackets, a disc being fixedly mounted on the outer side of the rotating shaft, and a lever being fixedly mounted on one side of the disc, the lever engaging with the slot.

[0006] Furthermore, a worm gear is fixedly installed at one end of the rotating shaft, a servo motor is fixedly installed at the top of the mounting plate, and a worm is fixedly installed at the output end of the servo motor, with the worm meshing with the worm gear.

[0007] Furthermore, conveyor frames are fixedly installed on both sides of the mounting plate, and conveyor belts are provided inside the two conveyor frames. An installation frame is fixedly installed on the top of the conveyor frame, and an electric telescopic rod is fixedly installed inside the top of the installation frame. A roller frame is fixedly installed at the output end of the electric telescopic rod, and a printing roller is provided on the inner side of the roller frame.

[0008] Furthermore, a plurality of electric rollers are provided on the top of the mounting plate and inside the two reversing rollers.

[0009] Furthermore, guide rods are fixedly installed on both sides of the top of the roller frame, and the guide rods are slidably connected to the mounting frame.

[0010] Furthermore, a guide plate is provided on the inner side of the conveyor frame and on one side of the conveyor belt.

[0011] Furthermore, a tapered guide groove is provided on one side of the groove.

[0012] This utility model provides a double-sided printing mechanism for a printing press, which has the following beneficial effects:

[0013] The double-sided printing mechanism of this printing machine, through the arrangement of reversing rollers, grooves, spacer discs, shift grooves, discs, shift rods, worm gears, servo motors, and worms, allows the material to be continuously conveyed into the grooves after one side of the material is printed. Then, the servo motor drives the worm to rotate, and the worm meshes with the worm gear, driving the disc and shift rod to rotate. The shift rod, in turn, drives the spacer disc and reversing roller to rotate 90° clockwise. After two such rotations, the material is flipped over, and then the other side of the material is printed. The printing efficiency is high, and the printing process is convenient and quick. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a partially hidden top view of the present invention;

[0017] Figure 4 This utility model Figure 2 Enlarged view of point A in the image;

[0018] Figure 5 This is a schematic diagram of the cooperation between the disc and the fixed-distance disc of this utility model;

[0019] Figure 6 This is a schematic diagram of the printing roller of this utility model.

[0020] In the diagram: 1. Mounting plate; 2. Conveyor frame; 3. Shaft frame; 4. Mounting shaft; 5. Reversing roller; 6. Groove; 7. Spacer disc; 8. Slot; 9. Rotating shaft; 10. Disc; 11. Lever; 12. Worm gear; 13. Servo motor; 14. Worm; 15. Conveyor belt; 16. Mounting frame; 17. Electric telescopic rod; 18. Roller frame; 19. Printing roller; 20. Guide rod; 21. Guide plate; 22. Electric roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 6 This utility model provides a technical solution: a double-sided printing mechanism for a printing machine, including a mounting plate 1. Shaft brackets 3 are fixedly mounted on both sides of the top of the mounting plate 1. A mounting shaft 4 is rotatably mounted inside the shaft bracket 3. Two reversing rollers 5 are mounted on the outer side of the mounting shaft 4. Grooves 6 are formed inside the reversing rollers 5 around their perimeter. A spacer disc 7 is fixedly mounted at one end of the mounting shaft 4. Grooves 8 are formed inside the spacer disc 7 around its perimeter. A rotating shaft 9 is rotatably mounted on one side of the shaft bracket 3. A disc 10 is fixedly mounted on the outer side of the rotating shaft 9. A [missing information - likely a component or part] is fixedly mounted on one side of the disc 10. The lever 11 engages with the slot 8. By setting two reversing rollers 5, the material can be supported by the two reversing rollers 5 after it is conveyed to the inside of the groove 6, thus ensuring the direction of the material. The servo motor 13 drives the worm gear 14 to rotate. The worm gear 14 meshes with the worm wheel 12, which drives the disc 10 and the lever 11 to rotate one revolution. Then, the lever 11 engages with a slot 8 on the outside of the fixed disk 7, which drives the reversing roller 5 to rotate 90° through the mounting shaft 4. By doing this twice, the material can be flipped, thus enabling double-sided printing on the material.

[0023] A worm gear 12 is fixedly installed at one end of the rotating shaft 9, and a servo motor 13 is fixedly installed on the top of the mounting plate 1. A worm 14 is fixedly installed at the output end of the servo motor 13, and the worm 14 meshes with the worm gear 12. After the worm 14 is driven to rotate by the servo motor 13, it can drive the rotating shaft 9 to rotate one revolution after the worm 14 meshes with the worm gear 12.

[0024] Conveyor frames 2 are fixedly installed on both sides of the mounting plate 1. Conveyor belts 15 are installed inside both conveyor frames 2. Mounting frame 16 is fixedly installed on the top of the conveyor frame 2. Electric telescopic rod 17 is fixedly installed inside the top of the mounting frame 16. Roller frame 18 is fixedly installed at the output end of the electric telescopic rod 17. Printing roller 19 is installed on the inner side of the roller frame 18. A motor for driving the conveyor belt 15 is installed on one side of the conveyor frame 2. The conveyor belt 15 on one side of the mounting plate 1 is used for printing material feeding, and the conveyor belt 15 on the other side is used for printing material unloading. The spacing of the downward movement of the printing roller 19 can be controlled by the electric telescopic rod 17 to meet the printing of materials of different thicknesses.

[0025] Several electric rollers 22 are arranged on the top of the mounting plate 1 and inside the two reversing rollers 5. When the material is conveyed to one side of a conveyor belt 15 through the reversing rollers 5, the material inside the groove 6 will contact the top of the electric roller 22. By turning on the electric roller 22 to make it rotate, the material can be conveyed to the conveyor belt 15 for the next printing and unloading through friction.

[0026] Guide rods 20 are fixedly installed on both sides of the top of the roller frame 18, and the guide rods 20 are slidably connected to the mounting frame 16; the setting of the guide rods 20 increases the stability of the roller frame 18 moving up and down.

[0027] A guide plate 21 is provided on the inner side of the conveyor frame 2 and on one side of the conveyor belt 15. The guide plate 21 facilitates the accurate delivery of materials to the inner side of the groove 6, avoiding the situation where the material delivery is deviated and the material cannot be accurately delivered to the inner side of the groove 6.

[0028] A tapered guide groove is provided on one side of the groove 6; the guide groove on one side of the groove 6 facilitates the material to be conveyed from the conveyor belt 15 into the inside of the groove 6.

[0029] In summary, the double-sided printing mechanism of this printing machine operates as follows: The material to be printed is placed on the left conveyor belt 15. The conveyor belt 15 is driven by a motor to rotate, transporting the material to the inside of the mounting frame 16. The printing roller 19 then prints the top of the material. After printing, the material is conveyed by the conveyor belt 15 to the groove 6 on one side of the reversing roller 5. Subsequently, the servo motor 13 drives the worm gear 14 to rotate. The worm gear 14 meshes with the worm wheel 12, causing the rotating shaft 9, the disc 10, and the lever 11 to rotate together. As the disc 10 rotates, the lever 11 rotates into the lever groove 8, thereby driving the spacer disc 7 and the mounting frame 16. The shaft 4 rotates 90°, causing the material in the groove 6 to rotate to the top of the reversing roller 5. Then, after the other printed material is printed, it is also conveyed to the groove 6 on one side of the conveyor belt 15. Then, by turning on the servo motor 13 to drive the reversing roller 5 to rotate 90°, the material in the groove 6 can rotate to the other side of the conveyor belt 15. At the same time, the material in the groove 6 contacts the top of the electric roller 22. After the electric roller 22 is powered on, the material is conveyed to the other conveyor belt 15. The printing roller 19 prints on the other side of the material, thus quickly completing the double-sided printing of the material.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-sided printing mechanism for a printing press, comprising a mounting plate (1), characterized in that: The mounting plate (1) has a shaft bracket (3) fixedly installed on both sides of the top. The mounting shaft (4) is rotatably installed inside the shaft bracket (3). Two reversing rollers (5) are installed on the outside of the mounting shaft (4). The reversing rollers (5) have grooves (6) inside all around. A spacer disc (7) is fixedly installed at one end of the mounting shaft (4). The spacer disc (7) has grooves (8) inside all around. A rotating shaft (9) is rotatably installed on one side of the shaft bracket (3). A disc (10) is fixedly installed on the outside of the rotating shaft (9). A lever (11) is fixedly installed on one side of the disc (10). The lever (11) cooperates with the groove (8).

2. The double-sided printing mechanism of a printing press according to claim 1, characterized in that: A worm gear (12) is fixedly installed at one end of the rotating shaft (9), a servo motor (13) is fixedly installed on the top of the mounting plate (1), and a worm (14) is fixedly installed at the output end of the servo motor (13), the worm (14) meshing with the worm gear (12).

3. The double-sided printing mechanism of a printing press according to claim 1, characterized in that: Conveyor frames (2) are fixedly installed on both sides of the mounting plate (1). Conveyor belts (15) are provided inside the two conveyor frames (2). Mounting frame (16) is fixedly installed on the top of the conveyor frame (2). Electric telescopic rod (17) is fixedly installed inside the top of the mounting frame (16). Roller frame (18) is fixedly installed at the output end of the electric telescopic rod (17). Printing roller (19) is provided on the inner side of the roller frame (18).

4. The double-sided printing mechanism of a printing press according to claim 1, characterized in that: Several electric rollers (22) are provided on the top of the mounting plate (1) and inside the two reversing rollers (5).

5. The double-sided printing mechanism of a printing press according to claim 3, characterized in that: Guide rods (20) are fixedly installed on both sides of the top of the roller frame (18), and the guide rods (20) are slidably connected to the mounting frame (16).

6. The double-sided printing mechanism of a printing press according to claim 3, characterized in that: A guide plate (21) is provided on the inner side of the conveyor frame (2) and on one side of the conveyor belt (15).

7. The double-sided printing mechanism of a printing press according to claim 1, characterized in that: A tapered guide groove is provided on one side of the groove (6).

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