A printing machine for producing color-printed packaging boxes

Abstract

The utility model relates to offset press technical field discloses a kind of offset press for producing color printing packaging box, including paper feed table, the top of paper feed table is fixedly connected with paper feeder, the bottom of paper feeder is fixedly connected with multiple suction cups, the inside of suction cup is fixedly connected with air pressure balancing mechanism, the inside of paper feed table is fixedly connected with anti-offset mechanism, the inside of paper feed table is fixedly connected with driving mechanism, the side similar to driving mechanism is rotatably connected with printing cylinder;The anti-offset mechanism includes two air cylinders, the inside of paper feed table is fixedly connected in the outside of air cylinder, the driving end of air cylinder is fixedly connected with fixed plate. In the utility model, paper offset can reduce waste rate caused by printing position error, reduce the waste of raw materials such as paper, to reduce production cost, reduce the frequent intervention and adjustment of paper position by artificial.

Description

Technical Field

[0001] This utility model relates to the field of offset printing machine technology, and in particular to an offset printing machine for producing color-printed packaging boxes. Background Technology

[0002] With the growing demand for personalized and aesthetically pleasing product packaging in the consumer market, color-printed packaging boxes, as an important carrier for product display and brand communication, are experiencing a continuous increase in market demand.

[0003] Offset printing presses consist of components such as paper feeding, printing, ink supply, water supply, paper collection, transmission, and control system. The paper feeding component feeds the paper, the printing component transfers the image through three rollers, the ink and water supply components supply ink and dampening solution respectively, the paper collection component collects the finished product, the transmission system provides power, and the control system ensures operation. Based on the principle that oil and water are immiscible, all components work together to achieve continuous and efficient printing.

[0004] In the existing technology, some offset printing machines need to be stopped frequently for adjustment to correct paper misalignment, which leads to production interruption, reduced effective production time, reduced equipment production efficiency, and affected order delivery time. In order to minimize the impact of misalignment on printing quality, manual intervention and adjustment of paper position are required frequently, which increases the labor intensity and working time, thereby increasing labor costs. Therefore, an offset printing machine for producing color-printed packaging boxes is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an offset printing machine for producing color-printed packaging boxes, aiming to improve the problem of paper misalignment in the existing technology, which causes frequent machine stops for adjustment during production, reduces equipment production efficiency, and increases manual labor intensity, working hours and costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An offset printing machine for producing color-printed packaging boxes includes a paper pusher table, a paper feeder fixedly connected to the top of the paper pusher table, a plurality of suction cups fixedly connected to the bottom of the paper feeder table, an air pressure balancing mechanism fixedly connected inside the suction cups, an anti-deviation mechanism fixedly connected inside the paper pusher table, a drive mechanism fixedly connected inside the paper pusher table, and a printing cylinder rotatably connected to an adjacent side of the drive mechanism.

[0008] The anti-deviation mechanism includes two cylinders. The cylinders are fixedly connected to the inside of the paper pusher. The drive end of each cylinder is fixedly connected to a fixed plate. A rotating rod is rotatably connected to the rear side of each fixed plate. A connecting rod is rotatably connected to the rear side of each rotating rod. A fixed column is rotatably connected to the inside of each connecting rod. A rotating rod is rotatably connected to the rear side of each connecting rod. A limit rod is rotatably connected to the rear side of each rotating rod. A fixed rod is rotatably connected to the bottom of each limit rod.

[0009] Through the above technical solution: the cylinder drives the fixed plate in the anti-deviation mechanism, and through the linkage of components such as the rotating rod and connecting rod, the limiting rod corrects the paper deviation in real time under the support of the fixed rod. The driving mechanism adjusts the position of the printing cylinder, and together they achieve stable paper feeding and high-precision printing of packaging boxes, ensuring printing quality and production efficiency.

[0010] As a further description of the above technical solution:

[0011] The driving mechanism includes an electric push rod, which is externally fixedly connected to the inside of the paper pusher. The driving end of the electric push rod is fixed to a rod, and a support frame is slidably connected to the sliding rod. A lifting assembly is installed on the outside of the sliding rod.

[0012] Through the above technical solution: In the drive mechanism, the electric push rod is fixed inside the paper pusher table. Its extension and retraction drive the sliding rod to slide inside the support frame, providing power to the lifting component. The lifting component realizes flexible adjustment of the height and position of the printing cylinder through the movement of the sliding rod, accurately adapting to different printing process requirements, ensuring uniform printing pressure and accurate image registration, and improving the printing quality and production flexibility of the offset printing machine.

[0013] As a further description of the above technical solution:

[0014] The lifting assembly includes connecting rods, wherein two of the connecting rods are externally fixedly connected to the outside of the first support frame, and each of the two connecting rods is rotatably connected to a connecting column on its far side. The connecting column is externally rotatably connected to two other connecting rods, and the other two connecting rods are externally slidably connected to a second support frame. The other two connecting rods are internally fixedly connected to a second sliding rod, and the top of the second support frame is fixedly connected to a second fixing rod.

[0015] Through the above technical solution: the lifting assembly transforms the linear motion of sliding rod one into a complex linkage through the cooperation of connecting rods and connecting columns. Two connecting rods are fixed outside the support frame one and connected to two other connecting rods through connecting columns, allowing the other two connecting rods to slide inside the support frame two. This drives sliding rod two and fixed rod two to move, thereby flexibly adjusting the height and position of the printing cylinder to meet different printing requirements.

[0016] As a further description of the above technical solution:

[0017] The air pressure balancing mechanism includes an air guide pipe, the outside of which is fixedly connected to the inside of the paper feeder, and a solenoid valve is fixedly connected to the front side of the air guide pipe.

[0018] The above technical solution involves a gas pressure balancing mechanism that delivers gas through an air guide tube and a solenoid valve that precisely controls and balances the air pressure of the suction cup in real time, ensuring stable paper adsorption and guaranteeing a precise and stable paper feeding process.

[0019] As a further description of the above technical solution:

[0020] The two fixed columns are externally fixedly connected to the inside of the paper pusher, and the left side of the two fixed rods is rotatably connected to the inside of the paper pusher;

[0021] The above technical solution involves fixing the column and the rod inside the paper pusher, providing rotation fulcrum and support for the connecting rod and the limiting rod, respectively, ensuring the stability of the anti-deviation mechanism and assisting in the accurate positioning of the paper.

[0022] As a further description of the above technical solution:

[0023] The bottoms of the two fixed plates are slidably connected to the top of the paper pusher, and a buffer cavity is provided inside the paper feeder;

[0024] Through the above technical solution: two fixed plates slide on the top of the paper pusher to transmit power, and the buffer chamber inside the paper feeder assists in stabilization. The two work together to ensure smooth paper feeding and improve the reliability of the offset printing machine.

[0025] As a further description of the above technical solution:

[0026] The sliding rod one is externally slidably connected to the inside of the support frame one. The support frame one has two limiting grooves inside, and the support frame two has two other limiting grooves inside.

[0027] Through the above technical solution: the sliding rod slides within the support frame 1, and relies on the limiting groove opened between it and the support frame 2 for guidance, accurately constraining the sliding trajectory, ensuring stable movement, and providing support for precise adjustment of the printing roller;

[0028] As a further description of the above technical solution:

[0029] The printing cylinder is externally rotatably connected to the side of the fixed rod two, the rear sides of the two connecting rods are rotatably connected to the side of the support frame one, and the rear sides of the two connecting rods are rotatably connected to the side of the support frame two. The external side of the sliding rod two is slidably connected to the internal side of the support frame two.

[0030] Through the above technical solution: the printing cylinder is rotatably connected to the fixed rod 2, the connecting rod is linked to the support frame 1 and the support frame 2, and the sliding rod 2 slides inside it, so as to achieve flexible adjustment of the position and height of the printing cylinder.

[0031] This utility model has the following beneficial effects:

[0032] 1. In this utility model, the suction cup at the bottom of the paper feeder adsorbs paper under the adjustment of the air pressure balance mechanism. In the anti-deviation mechanism, the cylinder drives the fixed plate to slide, which drives the rotating rod, connecting rod and other components to move together. The limiting rod adjusts the paper in real time under the support of the fixed rod to prevent paper deviation. This can reduce the scrap rate caused by printing position errors, reduce the waste of paper and other raw materials, thereby reducing production costs and reducing the frequency of manual intervention and adjustment of the paper position.

[0033] 2. In this utility model, in the drive mechanism, the electric push rod extends and retracts to push the sliding rod one to slide in the limiting groove of the support frame one. The sliding rod one drives the connecting rod of the lifting component to move. Through the cooperation of the connecting column, the sliding rod two slides inside the support frame two. This drives the support frame two and the fixed rod two to ensure that the pressure between the printing cylinder and the paper is uniform and appropriate, thereby obtaining a high-quality printing effect. Attached Figure Description

[0034] Figure 1 A perspective view of an offset printing machine for producing color-printed packaging boxes according to this utility model;

[0035] Figure 2 This is a schematic diagram of the air duct of an offset printing machine for producing color-printed packaging boxes, as proposed in this utility model.

[0036] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0037] Figure 4 This is a schematic diagram of the connecting rod of an offset printing machine for producing color-printed packaging boxes, as proposed in this utility model.

[0038] Legend:

[0039] 1. Paper pusher; 2. Paper feeder; 3. Suction cup; 4. Air pressure balance mechanism; 41. Air guide pipe; 42. Solenoid valve; 43. Buffer chamber; 5. Anti-deviation mechanism; 51. Cylinder; 52. Fixing plate; 53. Rotating rod one; 54. Connecting rod; 55. Fixing column; 56. Rotating rod two; 57. Fixing rod one; 58. Limiting rod; 6. Drive mechanism; 61. Electric push rod; 62. Sliding rod one; 63. Support frame one; 64. Limiting groove; 650. Lifting assembly; 651. Connecting rod; 652. Support frame two; 653. Connecting column; 654. Fixing rod two; 655. Sliding rod two; 7. Printing cylinder. Detailed Implementation

[0040] 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.

[0041] Reference Figure 2 , Figure 3 This utility model provides an embodiment of an offset printing machine for producing color-printed packaging boxes, including a paper pusher 1. A paper feeder 2 is fixedly connected to the top of the paper pusher 1 to ensure that the paper remains stable during transportation and printing, and to avoid paper deviation due to unstable load affecting printing quality. Multiple suction cups 3 are fixedly connected to the bottom of the paper feeder 2. The paper feeder 2 uses the multiple suction cups 3 at the bottom to adsorb the paper, realizing precise paper gripping and conveying. At the same time, a buffer cavity 43 is opened inside. An air pressure balancing mechanism 4 is fixedly connected inside the suction cups 3. The air pressure balancing mechanism 4 fixedly connected inside the suction cups 3 can adjust the air pressure in real time. An anti-deviation mechanism 5 is fixedly connected inside the paper pusher 1. The anti-deviation mechanism 5 adjusts and limits the paper position in real time through a limit rod 58 and a fixing rod 57 to ensure that the paper is conveyed along a predetermined trajectory. A drive mechanism 6 is fixedly connected inside the paper pusher 1. A printing cylinder 7 is rotatably connected to the side of the drive mechanism 6.

[0042] Specifically, the paper pusher table carries the paper feeder, which uses suction cups and air pressure balancing mechanism to feed paper precisely. Its buffer chamber assists in stabilization, and the anti-deviation mechanism in the paper pusher table can correct the paper position in real time. The drive mechanism adjusts the printing cylinder, and all parts work together to ensure smooth paper delivery and high-quality printing.

[0043] The anti-deviation mechanism 5 includes two cylinders 51, both of which are fixedly connected to the inside of the paper feeder 1. The precise extension and retraction control of the cylinders 51 allows for timely adjustment of the position of the fixed plate 52 based on paper deviation, thereby driving subsequent components to correct the paper deviation. The drive end of each cylinder 51 is fixedly connected to a fixed plate 52, whose bottom slides on the top of the paper feeder 1, transmitting power and supporting the rotating rod 53. The rear side of each fixed plate 52 is rotatably connected to a rotating rod 53, which is rotatably connected to the fixed plate 52 and the connecting rod 54, making motion transmission more flexible and enabling multi-angle paper position adjustment. The bottoms of the two fixed plates 52 are slidably connected to the top of the paper feeder 1. The inside of the paper feeder 2 has a buffer chamber 43. The rear side of each rotating rod 53 is rotatably connected to a connecting rod 54, which, driven by the rotating rod 53, rotates around the fixed column 5. 5. The swing mechanism transmits power through its own motion. The internal components of the connecting rod 54 are rotatably connected to fixed posts 55. The stable fixing of the fixed posts 55 ensures the stability and accuracy of the swing of the connecting rod 54, ensuring the normal operation of the anti-deviation mechanism 5. The external fixed posts 55 are fixedly connected to the inside of the paper pusher 1. The left side of the two fixed rods 57 is rotatably connected to the inside of the paper pusher 1. The fixed rods 57 ensure the stability and reliability of the limit rod 58 when correcting the paper deviation. The rear side of the connecting rod 54 is rotatably connected to a rotating rod 56. The rotating rod 56 transmits its own motion to the limit rod 58, achieving precise adjustment of the paper position and preventing paper deviation. The rear side of the rotating rod 56 is rotatably connected to a limit rod 58. The bottom of the limit rod 58 is rotatably connected to the fixed rod 57, allowing for flexible position adjustment to ensure the paper is always on the correct conveying path. The bottom of the limit rod 58 is rotatably connected to the fixed rod 57.

[0044] Specifically, the anti-deviation mechanism is driven by a cylinder. The cylinder precisely extends and retracts, causing the fixed plate to slide and transmitting power to the first rotating rod. The first rotating rod drives the connecting rod to swing around the fixed column, which in turn drives the second rotating rod, allowing the limit rod to flexibly adjust its position under the support of the first fixed rod, correcting the paper deviation in real time and ensuring that the paper is conveyed along the predetermined path.

[0045] Reference Figure 1 , Figure 4The drive mechanism 6 includes an electric push rod 61, which enables precise adjustment of the height and position of the printing roller 7. The electric push rod 61 is externally fixedly connected to the inside of the paper pusher table 1. The electric push rod 61 pushes the sliding rod 62 to slide within the support frame 63 through telescopic movement, providing power for the position adjustment of the printing roller 7. The drive end of the electric push rod 61 is fixedly connected to the sliding rod 62, which also serves as the mounting carrier for the lifting assembly 650, driving the lifting assembly 650 to move. The sliding rod 62 is slidably connected to the support frame 63. The limiting groove 64 inside the support frame 63 limits and guides the movement of the sliding rod 62, ensuring the stability and accuracy of the movement of the sliding rod 62. The external sliding connection of the sliding rod 62 is slidably connected to the inside of the support frame 63. The support frame 63 has two limiting grooves 64 inside, which ensure that the sliding rod 62 moves along a predetermined trajectory and prevents it from deviating during movement. The support frame 652 has two other limiting grooves 64 inside.

[0046] Specifically, in the drive mechanism, the electric push rod is fixed inside the paper pusher table. By extending and retracting, it pushes the sliding rod one to slide in the limiting groove of the support frame one. The sliding rod one serves as the carrier of the lifting component, driving its movement. The limiting grooves of the support frame one and the support frame two guide and limit the sliding rod one, thereby achieving precise adjustment of the height and position of the printing cylinder.

[0047] A lifting assembly 650 is installed on the outside of the sliding rod 62. The rotation and sliding cooperation of the connecting rod 651 of the lifting assembly 650 allows for flexible adjustment of the height of the printing cylinder 7 to adapt to different printing process requirements. The lifting assembly 650 includes connecting rods 651, with two connecting rods 651 externally fixedly connected to the outside of the support frame 63. The connecting rods 651 convert the movement of the sliding rod 62 into the lifting movement of the printing cylinder 7, achieving precise adjustment of the position of the printing cylinder 7. Each of the two connecting rods 651 has a connecting column rotatably connected to its opposite side. 653, the connecting column 653 provides the structural foundation for the lifting assembly 650 to lift the printing roller 7, ensuring a smooth lifting process. Two other connecting rods 651 are rotatably connected to the external side of the connecting column 653. Support frames 652 are slidably connected to the external side of each of the other two connecting rods 651. Under the action of the lifting assembly 650, the support frames 652 drive the printing roller 7 to move up and down, ensuring the stability of the printing roller 7's position adjustment. Sliding rods 655 are fixedly connected internally to the other two connecting rods 651. The top of each of the two components is fixedly connected to a second fixing rod 654. The second fixing rod 654 allows the component to be adjusted in position under the drive of the second support frame 652, and also provides rotational support for the printing cylinder 7. The external rotatable connection of the printing cylinder 7 is to the side near the second fixing rod 654. Under the action of the drive mechanism 6, the position and height of the printing cylinder 7 can be adjusted to adapt to different printing needs and ensure printing quality. The rear sides of the two connecting rods 651 are rotatably connected to the side near the first support frame 63, and the rear sides of the two connecting rods 651 are rotatably connected to the second support frame 652. On the side adjacent to 652, the external sliding rod 655 is slidably connected to the inside of the support frame 652. The air pressure balance mechanism 4 includes an air guide pipe 41, which transports gas from the paper feeder 2 to the suction cup 3, providing a gas source for the internal air pressure regulation of the suction cup 3 and ensuring the normal operation of the suction cup 3. The external air guide pipe 41 is fixedly connected to the inside of the paper feeder 2, and a solenoid valve 42 is fixedly connected to the front side of the air guide pipe 41 to precisely adjust the internal air pressure of the suction cup 3, realize precise control of the paper adsorption force, and ensure the stability and accuracy of paper feeding.

[0048] Specifically, the sliding rod drives the lifting assembly, and its connecting rod, through rotation and sliding, transmits the motion to the support frame 2 via the connecting column, thereby driving the fixed rod 2 and the printing cylinder to lift and lower, achieving precise position adjustment. The air guide pipe of the air pressure balance mechanism works with the solenoid valve to precisely control the air pressure of the suction cup, ensuring stable paper feeding.

[0049] Working principle: When the offset printing machine is working, the suction cup 3 at the bottom of the paper feeder 2, under the adjustment of the air pressure balance mechanism 4, adsorbs the paper, accurately grabs it and conveys it to the paper pusher table 1 and the anti-deviation mechanism 5. The cylinder 51 drives the fixed plate 52 to slide, which drives the rotating rod 53, connecting rod 54 and other components to move together. The fixed column 55 is used for fixing and limiting. The limiting rod 58, supported by the fixed rod 57, adjusts and limits the paper in real time to prevent deviation. The printing work of color packaging boxes is completed. Preventing paper deviation can reduce the scrap rate caused by printing position errors, reduce the waste of paper and other raw materials, thereby reducing production costs. It also reduces the frequency of manual intervention and adjustment of paper position, reduces the intensity of manual labor, and thus reduces labor costs.

[0050] In the drive mechanism 6, the electric push rod 61 extends and retracts to push the sliding rod 62 to slide within the limiting groove 64 of the support frame 63. The sliding rod 62 drives the connecting rod 651 of the lifting assembly 650 to move. Through the cooperation of the connecting column 653, the connecting rod 651 rotates. The connecting rod 651 fixes the sliding rod 655, which slides inside the support frame 652. This drives the support frame 652 and the fixed rod 654 to achieve precise adjustment of the height and position of the printing cylinder 7 to adapt to different printing needs. In the air pressure balance mechanism 4, the air pipe 41 connects the paper feeder 2 and the suction cup 3. The solenoid valve 42 regulates the gas flow and precisely controls the air pressure of the suction cup 3 to ensure stable paper feeding. The drive mechanism 6 can precisely adjust the height and position of the printing cylinder 7 to adapt to different paper thicknesses and various printing process requirements, ensuring that the pressure between the printing cylinder 7 and the paper is uniform and appropriate, thereby obtaining high-quality printing results.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. An offset printing machine for producing color-printed packaging boxes, comprising a paper pusher (1), characterized in that: The top of the paper pusher (1) is fixedly connected to a paper feeder (2), the bottom of the paper feeder (2) is fixedly connected to multiple suction cups (3), the inside of the suction cups (3) is fixedly connected to an air pressure balancing mechanism (4), the inside of the paper pusher (1) is fixedly connected to an anti-deviation mechanism (5), the inside of the paper pusher (1) is fixedly connected to a drive mechanism (6), and a printing cylinder (7) is rotatably connected to the side of the drive mechanism (6). The anti-deviation mechanism (5) includes two cylinders (51). The outside of each cylinder (51) is fixedly connected to the inside of the paper pusher (1). The driving end of each cylinder (51) is fixedly connected to a fixed plate (52). The rear side of each fixed plate (52) is rotatably connected to a rotating rod (53). The rear side of each rotating rod (53) is rotatably connected to a connecting rod (54). The inside of each connecting rod (54) is rotatably connected to a fixed column (55). The rear side of each connecting rod (54) is rotatably connected to a rotating rod (56). The rear side of each rotating rod (56) is rotatably connected to a limit rod (58). The bottom of each limit rod (58) is rotatably connected to a fixed rod (57).

2. The offset printing machine for producing color-printed packaging boxes according to claim 1, characterized in that: The drive mechanism (6) includes an electric push rod (61), which is externally fixedly connected to the inside of the paper pusher (1). The drive end of the electric push rod (61) is fixedly connected to a sliding rod (62), which is slidably connected to a support frame (63). A lifting assembly (650) is installed on the outside of the sliding rod (62).

3. The offset printing machine for producing color-printed packaging boxes according to claim 2, characterized in that: The lifting assembly (650) includes connecting rods (651), wherein two of the connecting rods (651) are externally fixedly connected to the outside of the first support frame (63), wherein the two connecting rods (651) are rotatably connected to a connecting column (653) on opposite sides, the connecting column (653) is rotatably connected to two other connecting rods (651), the outside of the other two connecting rods (651) is slidably connected to a second support frame (652), the inside of the other two connecting rods (651) is fixedly connected to a second sliding rod (655), and the top of the second support frame (652) is fixedly connected to a second fixing rod (654).

4. The offset printing machine for producing color-printed packaging boxes according to claim 1, characterized in that: The air pressure balancing mechanism (4) includes an air guide pipe (41), which is fixedly connected to the inside of the paper feeder (2) and a solenoid valve (42) is fixedly connected to the front side of the air guide pipe (41).

5. The offset printing machine for producing color-printed packaging boxes according to claim 1, characterized in that: The two fixed columns (55) are externally fixedly connected to the inside of the paper pusher (1), and the two fixed rods (57) are rotatably connected to the inside of the paper pusher (1) on the left side.

6. The offset printing machine for producing color-printed packaging boxes according to claim 4, characterized in that: The bottom of the two fixed plates (52) are slidably connected to the top of the paper pusher (1), and the paper feeder (2) has a buffer cavity (43) inside.

7. The offset printing machine for producing color-printed packaging boxes according to claim 3, characterized in that: The sliding rod (62) is externally slidably connected to the inside of the support frame (63). The support frame (63) has two limiting grooves (64) inside, and the support frame (652) has two other limiting grooves (64) inside.

8. The offset printing machine for producing color-printed packaging boxes according to claim 3, characterized in that: The printing roller (7) is externally connected to the side of the fixed rod two (654), wherein the rear sides of the two connecting rods (651) are rotatably connected to the side of the support frame one (63), wherein the rear sides of the two connecting rods (651) are rotatably connected to the side of the support frame two (652), and the outside of the sliding rod two (655) is slidably connected to the inside of (652).

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