A type of anti-curling cardboard color printing machine

Abstract

This application relates to a paper-based color printing machine with anti-curling features, including a worktable. A support base is provided at the bottom of the worktable, and a conveyor frame is provided at the top of the worktable. A conveyor belt is installed inside the conveyor frame. The printing machine body is also located at the two side edges of the conveyor frame on the top of the worktable. This invention uses a driven electric telescopic rod to reciprocate, causing the movable rod to drive the pressure rollers to reciprocate and press the paper surface, keeping it flat and preventing curling. Simultaneously, a driven cylinder moves a limit stop block towards the opposite direction, limiting the paper and preventing deviation during transport. The driven electric cylinder also drives a pressure roller inside a U-shaped frame to press down to the top of both edges of the paper, thus preventing curling at the edges. Furthermore, the spring telescopic rod prevents excessive pressure that could prevent the paper from moving.

Description

Technical Field

[0001] This application relates to the field of color printing equipment technology, and in particular to a paper color printing machine with anti-curling properties. Background Technology

[0002] In the modern printing industry, cardboard, due to its good stiffness, high strength, and certain toughness, is widely used in the production of various packaging, greeting cards, certificates, and other printed products. Color printing machines are the key equipment for giving cardboard rich colors and exquisite patterns. As the market's requirements for the quality and aesthetics of printed products continue to increase, the performance of cardboard color printing machines has also attracted much attention. The cardboard needs to be fed during the printing process.

[0003] However, some existing color printing machines do not have anti-curling structures during the paper feeding process. As a result, due to the unevenness of the paper itself, uneven stress can cause the paper to curl during the printing process, thus reducing the printing quality. Utility Model Content

[0004] To address the problems mentioned in the background art, this application provides a paperboard color printing machine that prevents edge curling.

[0005] The paperboard color printing machine with anti-curling feature provided in this application adopts the following technical solution:

[0006] An anti-curling cardboard color printing machine includes a worktable, a support base at the bottom of the worktable, a conveyor frame at the top of the worktable, a conveyor belt inside the conveyor frame, a leveling structure near one end of the top of the conveyor frame, two symmetrical anti-curling structures at the middle positions on both sides of the conveyor frame, and the color printing machine body at the top of the worktable at the two side edges of the conveyor frame.

[0007] Preferably, the leveling structure includes a U-shaped support frame installed on the conveyor frame, an electric telescopic rod installed on the top of the U-shaped support frame, one end of the electric telescopic rod passing through a through hole in the U-shaped support frame and connected to a fixing frame at the bottom.

[0008] Preferably, the fixed frame is provided with two sets of symmetrical limiting shafts at both ends, and two sets of symmetrical movable rods are movably installed on the two sets of limiting shafts. Symmetrical pressure rollers are rotatably installed between the other ends of the two sets of movable rods.

[0009] Preferably, a telescopic spring is also fixedly connected between the two sets of movable rods on opposite sides.

[0010] Preferably, the anti-rolling structure includes two symmetrical support plates installed at the middle position on the top of both sides of the conveyor frame. A cylinder is fixedly installed on one side of the two support plates. One end of the cylinder passes through a through hole opened in the side wall of the support plate and is connected to an L-shaped mounting bracket.

[0011] Preferably, the bottom of the L-shaped mounting bracket is connected to a limit block, the bottom of the limit block is in contact with the top of the conveyor belt, and an electric cylinder is also installed on the top of the L-shaped mounting bracket.

[0012] Preferably, the output end of the electric cylinder passes through a through hole at the top of the L-shaped mounting bracket and is connected to a fixing plate, the bottom of which is provided with several spring telescopic rods.

[0013] Preferably, the bottom of the spring telescopic rod is connected to a U-shaped frame, and several pressure rollers are rotatably installed inside the U-shaped frame.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. This utility model is equipped with a leveling structure. The fixed frame is moved downward by the electric telescopic rod, which causes the fixed frame to press down and separate the movable rod, and drive the pressure roller to roll the paper surface. The electric telescopic rod drives the fixed frame to move upward, and the movable rod will merge under the action of the telescopic spring fixed between the side walls. By driving the electric telescopic rod to work back and forth, the movable rod drives the pressure roller to roll back and forth on the paper surface, thereby keeping the surface flat and preventing the paper from curling.

[0016] 2. The anti-rolling edge structure of this utility model uses a cylinder to drive the limiting blocks to move in opposite directions. The limiting blocks limit the paper jamming and prevent deviation during the conveying process. The electric cylinder drives the fixing plate to move the U-shaped frame downward. The pressure rollers set inside the U-shaped frame press down to the top of the two ends of the paper jamming edge, thereby preventing the edge from rolling. At the same time, under the action of the spring telescopic rod, it can prevent the downward pressure from being too tight, which would cause the paper jamming to be unable to move. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a paperboard color printing machine with anti-curling feature according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the side structure of the workbench in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the bottom structure of the U-shaped support frame in the embodiments of this application;

[0020] Figure 4 This is a sectional view of the side structure of the workbench in an embodiment of this application;

[0021] Figure 5 This is an enlarged schematic diagram of the anti-rolling edge structure in the embodiments of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Conveyor frame; 3. Conveyor belt; 4. Printing machine body; 5. U-shaped support frame; 6. Electric telescopic rod; 7. Fixed frame; 8. Limiting shaft; 9. Movable rod; 10. Pressure roller; 11. Telescopic spring; 12. Support plate; 13. Cylinder; 14. L-shaped mounting bracket; 15. Limiting block; 16. Electric cylinder; 17. Fixed plate; 18. Spring telescopic rod; 19. U-shaped frame; 20. Pressure roller. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 —5 provides further detailed description of this application.

[0024] This application discloses an anti-curling cardboard color printing machine, including a worktable 1, a support base at the bottom of the worktable 1, a conveyor frame 2 at the top of the worktable 1, a conveyor belt 3 inside the conveyor frame 2, a leveling structure near one end of the top of the conveyor frame 2, two symmetrical anti-curling structures at the middle position on both sides of the conveyor frame 2, and a color printing machine body 4 at the two side edges of the top of the worktable 1 near the conveyor frame 2.

[0025] refer to Figure 3 The leveling structure includes a U-shaped support frame 5 mounted on the conveyor frame 2. An electric telescopic rod 6 is mounted on the top of the U-shaped support frame 5. One end of the electric telescopic rod 6 passes through a through hole in the U-shaped support frame 5 and is connected to a fixed frame 7 at the bottom. Two sets of symmetrical limiting shafts 8 are provided at both ends of the fixed frame 7. Two sets of symmetrical movable rods 9 are movably mounted on the two sets of limiting shafts 8. Symmetrical pressure rollers 10 are rotatably mounted between the other ends of the two sets of movable rods 9. A telescopic spring 11 is also fixedly connected between opposite sides of the two sets of movable rods 9. More specifically, first, the cardboard is placed on the conveyor belt 3, and then the electric telescopic rod mounted on the U-shaped support frame 5 is driven. 6 drives the fixed frame 7 to move downward, so that the movable rod 9, which is movably installed on the limiting shafts 8 at both ends of the fixed frame 7, drives the pressure roller 10, which is rotatably installed at one end, to move to the surface of the cardboard. Then, the electric telescopic rod 6 is driven, so that the fixed frame 7 drives the movable rod 9 to press down and separate, so that the pressure roller 10, which is rotatably installed at one end of the movable rod 9, rolls the surface of the cardboard. The electric telescopic rod 6 drives the fixed frame 7 to move upward, so that the movable rod 9 will merge under the action of the telescopic spring 11 fixedly connected between the side walls. By reciprocatingly driving the electric telescopic rod 6, the pressure roller 10 can be driven to reciprocate to roll the surface of the cardboard, so that the surface is kept flat and the edges of the cardboard are prevented from curling.

[0026] refer to Figure 4 and Figure 5The anti-rolling structure includes two symmetrical support plates 12 installed at the middle position on the top of both sides of the conveyor frame 2. A cylinder 13 is fixedly installed on one side of the two support plates 12. One end of the cylinder 13 passes through a through hole in the side wall of the support plate 12 and is connected to an L-shaped mounting bracket 14. A limit block 15 is connected to the bottom of the L-shaped mounting bracket 14. The bottom of the limit block 15 is in contact with the top of the conveyor belt 3. An electric cylinder 16 is also installed on the top of the L-shaped mounting bracket 14. The output end of the electric cylinder 16 passes through a through hole in the top of the L-shaped mounting bracket 14 and is connected to a fixing plate 17. Several spring telescopic rods 18 are provided at the bottom of the fixing plate 17. A U-shaped frame 19 is connected to the bottom of the spring telescopic rods 18. Several spring telescopic rods 18 are rotatably installed inside the U-shaped frame 19. More specifically, the pressure roller 20 drives the cylinder 13 on one side of the two support plates 12, causing the L-shaped mounting bracket 14 connected at one end to move the limiting block 15 connected at the bottom towards each other. This allows the limiting block 15 to place the paper jam on the conveyor belt 3 for limiting and preventing deviation during conveying. Then, the electric cylinder 16 at the top of the L-shaped mounting bracket 14 drives the U-shaped frame 19 connected at one end of the spring telescopic rod 18 at the bottom of the fixing plate 17 to move downward. This causes the pressure roller 20, which is rotatably mounted inside the U-shaped frame 19, to move to the top position of the two ends of the paper jam. The pressure roller 20 can press down on the two ends of the paper jam to prevent the edges from curling. At the same time, under the action of the spring telescopic rod 18, it can prevent the pressure from being too tight, which would prevent the paper jam from moving.

[0027] The implementation principle of the anti-curling cardboard color printing machine according to an embodiment of this application is as follows: In use, the cardboard is placed on the conveyor belt 3. First, the electric telescopic rod 6 is driven to move the fixed frame 7 downwards, causing the movable rod 9 to move the pressure roller 10 to the surface of the cardboard. The electric telescopic rod 6 is then driven further, causing the fixed frame 7 to press the movable rod 9 downwards and separate, while the pressure roller 10 rolls the surface of the cardboard. The electric telescopic rod 6 drives the fixed frame 7 upwards, and the movable rod 9 merges under the action of the telescopic spring 11 fixedly connected between the side walls. By driving the electric telescopic rod 6 to reciprocate, the movable rod 9... The moving pressure roller 10 reciprocates to roll the surface of the cardboard, thereby keeping the surface flat and preventing the cardboard from curling. Then, the driving cylinder 13 drives the limit block 15 to move towards each other. The limit block 15 limits the cardboard on the conveyor belt 3 to prevent deviation during the conveying process. The driving electric cylinder 16 moves the U-shaped frame 19 at the bottom of the fixed plate 17 downward. The pressure roller 20 set inside the U-shaped frame 19 presses down to the top of the two ends of the cardboard, thereby preventing the edges from curling. At the same time, under the action of the spring telescopic rod 18, it can prevent the downward pressure from being too tight, which would prevent the cardboard from moving.

[0028] 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 color printing machine with anti-curling properties, characterized in that: The system includes a workbench (1), a support base at the bottom of the workbench (1), a conveyor frame (2) at the top of the workbench (1), a conveyor belt (3) inside the conveyor frame (2), and a leveling structure near one end of the top of the conveyor frame (2). The leveling structure includes a U-shaped support frame (5) mounted on the conveyor frame (2), an electric telescopic rod (6) mounted on the top of the U-shaped support frame (5), one end of the electric telescopic rod (6) passing through a through hole in the U-shaped support frame (5) and connected to a fixing frame at the bottom. (7) Connected, the two sides of the conveyor frame (2) are provided with two symmetrical anti-rolling structures at the middle position. The anti-rolling structure includes two symmetrical support plates (12) installed at the middle position on the top of the two sides of the conveyor frame (2). A cylinder (13) is fixedly installed on one side of the two support plates (12). One end of the cylinder (13) passes through the through hole opened in the side wall of the support plate (12) and is connected to an L-shaped mounting bracket (14). The top of the workbench (1) is also provided with a color printing machine body (4) at the two sides of the conveyor frame (2).

2. The anti-curling cardboard color printing machine according to claim 1, characterized in that: The fixed frame (7) has two sets of symmetrical limiting shafts (8) at both ends, and two sets of symmetrical movable rods (9) are movably installed on the two sets of limiting shafts (8). A symmetrical pressure roller (10) is rotatably installed between the other ends of the two sets of movable rods (9).

3. The anti-curling cardboard color printing machine according to claim 2, characterized in that: A telescopic spring (11) is also fixedly connected between the two sets of movable rods (9) on opposite sides.

4. The anti-curling cardboard color printing machine according to claim 1, characterized in that: The bottom of the L-shaped mounting bracket (14) is connected to a limit block (15), the bottom of the limit block (15) is in contact with the top of the conveyor belt (3), and an electric cylinder (16) is also installed on the top of the L-shaped mounting bracket (14).

5. A paper printing machine for preventing edge curling according to claim 4, characterized in that: The output end of the electric cylinder (16) passes through the through hole opened at the top of the L-shaped mounting bracket (14) and is connected to a fixing plate (17). Several spring telescopic rods (18) are provided at the bottom of the fixing plate (17).

6. A paperboard color printing machine with anti-curling properties according to claim 5, characterized in that: The bottom of the spring telescopic rod (18) is connected to a U-shaped frame (19), and several pressure rollers (20) are rotatably installed inside the U-shaped frame (19).

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