Material positioning structure for four-color printing machine

Abstract

The utility model discloses a material positioning structure for a four-color printing machine, and belongs to the technical field of four-color printing machines. The material positioning structure for the four-color printing machine has the advantages that the printing precision is improved, the adaptability is wide, the feeding speed is increased, and the overall efficiency is improved, and the second roller and the first roller can be driven to rotate by starting and controlling the driving motor, so that materials are effectively leveled and aligned before entering a printing area, and the printing efficiency is improved. The leveling device can adjust the leveling distance between the second roller and the first roller by rotating the two threaded lead screws, can adapt to printing materials of different thicknesses and materials through free adjustment, and is convenient to use and high in practicability. The conditions such as deviation, wrinkling or overlapping of the materials are prevented, so that accurate positioning of printed patterns is ensured, and the printing precision and the finished product quality are greatly improved. The leveling distance between the second roller and the first roller can be adjusted by rotating the two threaded lead screws. And the arranged positioning and leveling assembly can greatly simplify the feeding adjustment process, so that materials can quickly enter the printing link, the production period is effectively shortened, and the overall operation efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of four-color printing machines, and particularly relates to a material positioning structure for a four-color printing machine. Background Art

[0002] A four-color printing press is a machine used for color printing. It uses four primary colors—cyan, magenta, yellow, and black (CMYK)—and overlays them to create images in a variety of colors. These four inks, mixed in specific proportions, can produce nearly any color, making them suitable for the production of books, posters, packaging, and other color printed materials. Each printing unit of a four-color printing press prints a primary color, which is then layered to create a multicolored effect. Four-color printing ensures high color reproduction and high production efficiency, making it widely used in commercial printing.

[0003] Existing four-color printing machines usually lack a stable and reliable positioning and leveling device during the material feeding process. Since it is difficult to keep the material flat and aligned before entering the printing area, material deviation, wrinkles, overlaps, etc. often occur, which directly affects the accuracy of the printed pattern, resulting in inaccurate registration and poor printing quality. Even if manual adjustments are made, the operation is cumbersome and inefficient. In addition, the existing equipment lacks a convenient adjustment function in feeding positioning, and it is difficult to adapt to printing materials of different thicknesses and materials. Therefore, a material positioning structure for a four-color printing machine is proposed to solve the above problems. Utility Model Content

[0004] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the utility model provides a material positioning structure for a four-color printing machine, which has the advantages of improving printing accuracy, wide adaptability, and increasing feeding speed and overall efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides a material positioning structure for a four-color printing press, comprising a four-color printing press body;

[0006] A set of positioning and leveling components is installed on one side of the feed end of the four-color printing machine body;

[0007] The second gear is connected to the first gear and the second gear is connected to the first gear by a shaft, and the first gear is connected to the first gear by a shaft.

[0008] As a further improvement of the present invention, a driving motor is assembled on one side of the U-shaped seat and one end of the first rotating rod is connected to the output end of the driving motor.

[0009] As a further improvement of the present invention, deep groove ball bearings are installed at the connections between the two threaded screws and the first connecting block and the second connecting block.

[0010] As a further improvement of the present invention, the lower end surface of the U-shaped seat is equipped with four legs, and the four legs are distributed in a rectangular shape.

[0011] As a further improvement of the present invention, the upper ends of the two threaded screws are equipped with handles.

[0012] In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

[0013] The material positioning structure for a four-color printing press of the present invention cooperates with each other through the components in the positioning and leveling assembly, and by starting and controlling the driving motor, the second roller and the first roller can be driven to rotate, thereby effectively leveling and aligning the material before it enters the printing area, preventing the material from being offset, wrinkled or overlapping, etc., thereby ensuring the accurate positioning of the printed pattern and greatly improving the printing accuracy and the quality of the finished product. The leveling distance between the second roller and the first roller can be adjusted by rotating the two threaded screws. The free adjustment allows the device to adapt to printing materials of different thicknesses and materials, reducing feeding problems caused by material thickness or material differences, and improving the compatibility and flexibility of the equipment. The positioning and leveling assembly can greatly simplify the feeding adjustment process, so that the material can quickly enter the printing link, effectively shortening the production cycle and improving the overall operating efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a schematic diagram of the installation structure of the positioning and leveling component of the utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the positioning and leveling components of the utility model.

[0017] In all the drawings, the same figure marks represent the same technical features, specifically: 1. Four-color printing press body; 2. Positioning and leveling assembly; 20. U-shaped seat; 201. Drive motor; 202. Support leg; 21. First rotating rod; 22. First roller; 23. First gear; 24. Second gear; 25. Third gear; 26. Fourth gear; 27. Positioning plate; 28. Screw rod; 281. First connecting block; 282. Second connecting block; 283. Second rotating rod; 284. Handle; 29. ​​Second roller. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example

[0020] Depend on Figure 1-3 Provided is a material positioning structure for a four-color printing press, comprising a four-color printing press body 1;

[0021] A set of positioning and leveling components 2 is assembled on one side of the feed end of the four-color printing machine body 1;

[0022] The positioning and leveling assembly 2 includes a U-shaped seat 20, a first rotating rod 21 is provided on one side of the U-shaped seat 20, a first roller 22 is installed on the outside of the first rotating rod 21, a first gear 23 is installed on the outside of the first rotating rod 21, and a second gear 24 and a third gear 25 are connected to the U-shaped seat 20 on one side through a rotating shaft, and the third gear 25 is located at the upper end of the second gear 24. The first gear 23 is meshed with the second gear 24, and the second gear 24 is meshed with the third gear 25. A fourth gear 26 is meshed on one side of the third gear 25. Both sides of the U-shaped seat 20 are provided with There is a slide groove and a positioning plate 27 is installed on the upper end of the slide groove. The upper end surfaces of the two positioning plates 27 are penetrated by a threaded screw 28. The lower ends of the two threaded screws 28 are respectively connected to a first connecting block 281 and a second connecting block 282. The first connecting block 281 and the second connecting block 282 are respectively located in the slide grooves on both sides of the U-shaped seat 20. A second rotating rod 283 is penetrated between the first connecting block 281 and the second connecting block 282, and the second rotating rod 283 extends through the fourth gear 26. The second rotating rod 283 is equipped with a second roller 29 on the outside, and the second roller 29 is located at the upper end of the first roller 22.

[0023] A driving motor 201 is mounted on one side of the U-shaped seat 20 , and one end of the first rotating rod 21 is connected to the output end of the driving motor 201 .

[0024] In this embodiment, by cooperating with each other among the components within the positioning and leveling assembly 2, the second roller 29 and the first roller 22 can be driven to rotate by starting and controlling the drive motor 201, thereby effectively leveling and aligning the material before it enters the printing area, preventing the material from being offset, wrinkled or overlapped, etc., thereby ensuring the accurate positioning of the printed pattern and greatly improving the printing accuracy and quality of the finished product. The leveling distance between the second roller 29 and the first roller 22 can be adjusted by rotating the two threaded screws 28. The free adjustment allows the device to adapt to printing materials of different thicknesses and materials, reducing feeding problems caused by material thickness or material differences, and improving the compatibility and flexibility of the equipment. The positioning and leveling assembly 2 can greatly simplify the feeding adjustment process, allowing the material to quickly enter the printing link, effectively shortening the production cycle, and improving the overall operating efficiency of the equipment.

[0025] Specifically, refer to Figure 1-3 The connection points between the two threaded screws 28 and the first connecting block 281 and the second connecting block 282 are both equipped with deep groove ball bearings.

[0026] In this embodiment, by installing deep groove ball bearings at the connection between the threaded screw 28 and the first connecting block 281 and the second connecting block 282, the friction between the threaded screw 28 and the first connecting block 281 and the second connecting block 282 can be reduced, and the service life of the threaded screw 28 and the first connecting block 281 and the second connecting block 282 can be extended.

[0027] Specifically, refer to Figure 1-3 The lower end surface of the U-shaped seat 20 is equipped with four legs 202, and the four legs 202 are distributed in a rectangular shape.

[0028] In this embodiment, the four supporting legs 202 can provide stable support for the device and ensure its stability.

[0029] Specifically, refer to Figure 1-3 The upper ends of the two threaded rods 28 are both equipped with handles 284.

[0030] In this embodiment, the provided handle 284 can facilitate the user to rotate the threaded screw 28, thereby improving operability.

[0031] The material positioning structure for a four-color printing press of the utility model:

[0032] During actual use, the drive motor 201 is first connected to an external power supply. The material to be printed is passed between the second roller 29 and the first roller 22. The two threaded screws 28 are rotated to drive the first connecting block 281 and the second connecting block 282 to move, thereby driving the second roller 29 to move, thereby adjusting the positioning and leveling distance between the second roller 29 and the first roller 22. By starting and controlling the drive motor 201, the drive motor 201 drives the first rotating rod 21 and the first roller 22 to rotate. When the first rotating rod 21 rotates, it drives the first gear 23 to rotate. When the first gear 23 rotates, it drives the second gear 24 meshed on one side. When the second gear 24 rotates, it drives the third gear 25 meshed on the upper end. When the third gear 25 rotates, it drives the fourth gear 26 meshed on one side, and finally drives the second rotating rod 283 and the second roller 29 to rotate, so that the first roller 22 and the second roller 29 rotate synchronously and position and level the material to prevent the material from being offset, wrinkled or overlapped, thereby ensuring the accurate positioning of the printed pattern.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material positioning structure for a four-color printing press, comprising a four-color printing press body (1), characterized in that: A set of positioning and leveling components (2) is assembled on one side of the feed end of the four-color printing machine body (1); The positioning and leveling assembly (2) includes a U-shaped seat (20), a first rotating rod (21) is provided on one side of the U-shaped seat (20), a first roller (22) is provided on the outside of the first rotating rod (21), a first gear (23) is provided on the outside of one end of the first rotating rod (21), a second gear (24) and a third gear (25) are rotatably connected to one side of the U-shaped seat (20) through a rotating shaft, and the third gear (25) is located at the upper end of the second gear (24), the first gear (23) is meshed with the second gear (24), the second gear (24) is meshed with the third gear (25), and a fourth gear (26) is meshed on one side of the third gear (25), and the U-shaped seat ( 20) are provided with a slide groove on both sides and a positioning plate (27) is installed on the upper end of the slide groove, and the upper end surfaces of the two positioning plates (27) are penetrated by a threaded screw rod (28), and the lower ends of the two threaded screw rods (28) are respectively connected to a first connecting block (281) and a second connecting block (282), and the first connecting block (281) and the second connecting block (282) are respectively located in the slide grooves on both sides of the U-shaped seat (20), a second rotating rod (283) is penetrated between the first connecting block (281) and the second connecting block (282), and the second rotating rod (283) extends through the fourth gear (26), and the second rotating rod (283) is equipped with a second roller (29) on the outside, and the second roller (29) is located at the upper end of the first roller (22).

2. The material positioning structure for a four-color printing press according to claim 1, characterized in that: A driving motor (201) is assembled on one side of the U-shaped seat (20), and one end of the first rotating rod (21) is connected to the output end of the driving motor (201).

3. The material positioning structure for a four-color printing press according to claim 1, characterized in that: The connection points between the two threaded screw rods (28) and the first connecting block (281) and the second connecting block (282) are both equipped with deep groove ball bearings.

4. The material positioning structure for a four-color printing press according to claim 1, characterized in that: The lower end surface of the U-shaped seat (20) is equipped with four supporting legs (202), and the four supporting legs (202) are distributed in a rectangular shape.

5. The material positioning structure for a four-color printing press according to claim 1, characterized in that: The upper ends of the two threaded screw rods (28) are both equipped with handles (284).

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