A receiving and rectifying device for a gravure printing machine

Abstract

The utility model relates to the technical field of gravure printing machine, and disclose a kind of gravure printing machine material receiving deviation rectifying device, including base, the base top is provided with deviation rectifying mechanism, the deviation rectifying mechanism top is provided with winding mechanism, the deviation rectifying mechanism includes fixed platform, the fixed platform is fixedly connected in base top, the fixed platform top left side is fixedly connected with first servo motor, the first servo motor top is fixedly connected with rotating rod, rotating rod periphery is fixedly connected with rotating table, when using, when being printed by gravure printing machine to packaging bag, first hold the printed packaging bag one end on transmission roll and deviation rectifying roll, and from the guiding roller bottom, and one end is located in photoelectric deviation rectifying sensor inside, continue to move to right side, at the bottom of pressing roller, and winding is to winding roll, photoelectric deviation rectifying sensor can accurately detect the position deviation of printing material.

Description

Technical Field

[0001] This utility model relates to the field of gravure printing machine technology, specifically to a gravure printing machine material feeding and correction device. Background Technology

[0002] In the packaging and printing industries, gravure printing machines are widely used in continuous printing operations on materials such as plastic film, paper, and metal foil due to their advantages such as stable printing quality, high production efficiency, and wide applicability to substrates. They play an important role, especially in the mass production of products such as packaging bags and food packaging films. However, during the actual operation of a gravure printing press, the material is susceptible to various factors during the transfer and receiving stages, resulting in positional deviations. During the continuous transmission of materials through multiple sets of drive rollers and guide structures, they are prone to lateral shift or longitudinal skewing due to factors such as uneven tension of the substrate itself, deviation of roller parallelism, and vibration of equipment operation. This leads to misalignment between the printed pattern and the edge of the material, ultimately causing quality defects such as misalignment of the printed pattern and uneven edge blanking. In severe cases, it can even cause the material to be scrapped, increasing production costs.

[0003] According to the description in the patent announcement (CN211366387U) of a gravure printing machine correction device, the correction device of the gravure printing machine includes "frame, take-up roller" etc., to realize the correction work.

[0004] Regarding the above description, the applicant believes the following issues exist: The correction device of this gravure printing machine uses the frame, take-up roller, etc. to achieve correction. In use, this device achieves correction by using fixed correction blocks. This method not only fails to achieve the correction effect, but also causes the material to entangle and accumulate. Furthermore, it cannot adjust the tension before rewinding the material, affecting the neatness and tightness of the rewind. Therefore, this device needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a gravure printing machine feeding and correction device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gravure printing machine receiving and correction device, including a base, a correction mechanism on the top of the base, and a winding mechanism on the top of the correction mechanism; The correction mechanism includes a fixed platform, which is fixedly connected to the top of the base. A first servo motor is fixedly connected to the top left side of the fixed platform. A rotating rod is fixedly connected to the top of the first servo motor. A rotating platform is fixedly connected to the periphery of the rotating rod. A correction seat is fixedly connected to the top of the rotating platform. A transmission roller is fixedly connected to the left side of the correction seat. A correction roller is fixedly connected to the right side of the correction seat. A support ring is fixedly connected to the bottom of the rotating platform. A fixed plate is fixedly connected to the front side of the top of the fixed platform. A photoelectric correction sensor is fixedly connected to the top of the fixed plate. A guide roller is fixedly connected to the rear side of the fixed plate. A load-bearing frame is fixedly connected to the right side of the top of the fixed platform. A hydraulic cylinder is fixedly connected to the top of the load-bearing frame. A mounting frame is fixedly connected to the bottom of the hydraulic cylinder. A pressing roller is rotatably connected to the inner side of the mounting frame.

[0007] Preferably, the support ring is rotatably connected to the top of the fixed platform, and the mounting frame is slidably connected to the inside of the load-bearing frame, so that the support ring can provide support for the rotating platform.

[0008] Preferably, the guide roller is located to the right of the correction roller, and the pressing roller is located to the right of the guide roller, so that the correction roller can perform the correction work.

[0009] Preferably, the winding mechanism includes a load-bearing plate, which is fixedly connected to the top right side of the fixed platform. A second servo motor is fixedly connected to the rear side of the load-bearing plate, and a rotating shaft is fixedly connected to the front side of the second servo motor. An air shaft is fixedly connected to the front side of the rotating shaft, and an air nozzle is fixedly connected inside the front end of the air shaft. A support arm is slidably connected to the outer periphery of the front end of the air shaft. The support arm is located on the front side of the fixed platform, and a fixed shaft is threadedly connected inside the support arm.

[0010] Preferably, the rotating shaft is rotatably connected inside the load-bearing plate, which facilitates the rotation of the air shaft by the rotating shaft.

[0011] Preferably, the air shaft is rotatably connected inside the load-bearing plate, and the air shaft is located to the right of the pressing roller, which facilitates the fixing of the winding roller through the air shaft.

[0012] Preferably, the rear side of the support arm is in contact with the front side of the fixed platform, and the fixed shaft passes through the interior of the fixed platform to facilitate the stability of the support arm through the fixed shaft.

[0013] Compared with the prior art, this utility model provides a material feeding and correction device for a gravure printing machine, which has the following beneficial effects: 1. This gravure printing machine's material receiving and correction device, through its correction mechanism, when printing on packaging bags using the gravure printing machine, first pulls one end of the printed packaging bag onto the drive roller and correction roller, and passes through the bottom of the guide roller, with one end located inside the photoelectric correction sensor. It continues to move to the right, positioned at the bottom of the pressing roller, and winds onto the take-up roller. The photoelectric correction sensor accurately detects the positional deviation of the printed material. Subsequently, the first servo motor drives the rotating rod to rotate the rotating table and correction seat, cooperating with the correction roller to achieve timely correction of the material's deviation. This effectively avoids problems such as misalignment of printed patterns and irregular edges caused by material offset, improving the overall quality of printed materials. The support ring at the bottom of the rotating table is rotatably connected to the fixed table, providing stable support for the rotation of the rotating table and preventing shaking during operation. This ensures the stability of the correction mechanism. During the winding process, the mounting frame is slidably connected to the inside of the load-bearing frame, making the hydraulic cylinder drive the pressing roller to move up and down more smoothly. The pressing roller can apply pressure to the material evenly, ensuring the flatness of the material during transmission and the tightness of the winding.

[0014] 2. This gravure printing machine's material receiving and correction device, through its winding mechanism, allows for the winding of materials printed by the gravure printing machine. The winding roller is slidably connected to the outer periphery of the air shaft and positioned in the middle of the air shaft. Inflating the air shaft with an air nozzle secures the winding roller, and deflating it allows for easy removal, significantly reducing the winding roller's operation time. After installation, the support arm is slidably connected to the outer periphery of the front end of the air shaft, with its rear side contacting the front side of the fixed platform. The support arm and the fixed platform are then fixed together via a fixed shaft, ensuring the stability of the air shaft. A second servo motor drives the rotating shaft and the air shaft to rotate, thus achieving the winding operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a schematic diagram of the correction mechanism. Figure 4 This is a schematic diagram of the top structure of the first servo motor; Figure 5 This is a schematic diagram of the top structure of the fixed platform; Figure 6 This is a schematic diagram of the winding mechanism.

[0016] In the diagram: 1. Base; 2. Correction mechanism; 3. Winding mechanism; 21. Fixed platform; 22. First servo motor; 23. Fixed plate; 24. Support frame; 25. Rotating rod; 26. Rotating platform; 27. Correction seat; 28. Transmission roller; 29. ​​Correction roller; 291. Support ring; 292. Guide roller; 293. Photoelectric correction sensor; 294. Pressing roller; 295. Hydraulic cylinder; 296. Mounting frame; 31. Support plate; 32. Second servo motor; 33. Rotating shaft; 34. Air shaft; 35. Air nozzle; 36. Support arm; 37. Fixed shaft. Detailed Implementation

[0017] 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.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] This utility model provides the following technical solution: Example 1 Please see Figure 1-6 This utility model provides a technical solution: a gravure printing machine receiving and correction device, including a base 1, a correction mechanism 2 is provided on the top of the base 1, and a winding mechanism 3 is provided on the top of the correction mechanism 2. The correction mechanism 2 includes a fixed platform 21, which is fixedly connected to the top of the base 1. A first servo motor 22 is fixedly connected to the left side of the top of the fixed platform 21. A rotating rod 25 is fixedly connected to the top of the first servo motor 22. A rotating platform 26 is fixedly connected to the periphery of the rotating rod 25. A correction seat 27 is fixedly connected to the top of the rotating platform 26. A transmission roller 28 is fixedly connected to the left side of the correction seat 27. A correction roller 29 is fixedly connected to the right side of the correction seat 27. A support ring 291 is fixedly connected to the bottom of the rotating platform 26. A fixed plate 23 is fixedly connected to the front side of the top of the fixed platform 21. A photoelectric correction sensor 293 is fixedly connected to the top of the fixed plate 23. A guide roller 292 is fixedly connected to the rear side of the fixed plate 23. A load-bearing frame 24 is fixedly connected to the right side of the top of the fixed platform 21. A hydraulic cylinder 295 is fixedly connected to the top of the load-bearing frame 24. A mounting frame 296 is fixedly connected to the bottom of the hydraulic cylinder 295. A pressing roller 294 is rotatably connected to the inside of the mounting frame 296.

[0020] The support ring 291 is rotatably connected to the top of the fixed platform 21, and the mounting frame 296 is slidably connected to the inside of the load-bearing frame 24, so that the support ring 291 can support the rotating platform 26.

[0021] The guide roller 292 is located to the right of the correction roller 29, and the pressing roller 294 is located to the right of the guide roller 292, so that the correction roller 29 can perform the correction work.

[0022] Example 2 Please see Figure 1-6 Furthermore, based on Embodiment 1, the winding mechanism 3 further includes a load-bearing plate 31, which is fixedly connected to the top right side of the fixed platform 21. A second servo motor 32 is fixedly connected to the rear side of the load-bearing plate 31. A rotating shaft 33 is fixedly connected to the front side of the second servo motor 32. An air expansion shaft 34 is fixedly connected to the front side of the rotating shaft 33. An air nozzle 35 is fixedly connected to the front end of the air expansion shaft 34. A support arm 36 is slidably connected to the outer periphery of the front end of the air expansion shaft 34. The support arm 36 is located on the front side of the fixed platform 21. A fixed shaft 37 is threadedly connected inside the support arm 36.

[0023] The rotating shaft 33 is rotatably connected inside the load-bearing plate 31, so that the air shaft 34 can be rotated through the rotating shaft 33.

[0024] The air shaft 34 is rotatably connected inside the load-bearing plate 31. The air shaft 34 is located to the right of the pressing roller 294, which facilitates the fixing of the winding roller through the air shaft 34.

[0025] The rear side of the support arm 36 is in contact with the front side of the fixed platform 21, and the fixed shaft 37 passes through the interior of the fixed platform 21, so as to ensure the stability of the support arm 36 through the fixed shaft 37.

[0026] In actual operation, when this device is used to print on packaging bags using a gravure printing machine, the take-up roller is slidably connected to the periphery of the air shaft 34 and located in the middle of the air shaft 34. The take-up roller is fixed by inflating the air shaft 34 with an air nozzle 35 using an external air supply device. After deflating, it can be easily removed, significantly shortening the operation time of the take-up roller. After installation, the support arm 36 is slidably connected to the periphery of the front end of the air shaft 34, with its rear side contacting the front side of the fixed platform 21. The support arm 36 and the fixed platform 21 are fixed together by the fixed shaft 37, ensuring the stability of the air shaft 34. The printed packaging bag is held at one end on the transmission roller 28 and the correction roller 29, and passes through the bottom of the guide roller 292. One end is located inside the photoelectric correction sensor 293. It continues to move to the right, is located at the bottom of the pressing roller 294, and is wound onto the take-up roller. The second servo motor 32 drives the rotating shaft 33 and the air shaft 34 to rotate, thus realizing the take-up operation. The photoelectric correction sensor 293 can accurately detect the positional deviation of the printed material. Then, the first servo motor 22 drives the rotating rod 25 to drive the rotating table 26 and the correction seat 27 to rotate. Together with the correction roller 29, it realizes timely correction of the material. It can effectively avoid problems such as misalignment of printed patterns and irregular edges caused by material deviation, and improve the overall quality of printed products. The support ring 291 at the bottom of the rotating table 26 is rotatably connected to the fixed table 21, providing stable support for the rotation of the rotating table 26 and preventing the rotating table 26 from shaking during operation, thus ensuring the stability of the correction mechanism 2. When the packaging bag is in a loose state during the winding process, the mounting frame 296 is slidably connected to the inside of the load-bearing frame 24 during the winding process, so that the hydraulic cylinder 295 drives the pressing roller 294 to move up and down more smoothly. The pressing roller 294 can apply pressure to the material evenly, ensuring the flatness of the material during the transmission process and the tightness of the winding. When it is necessary to disassemble the take-up roller, simply remove the fixed shaft 37 and the support arm 36, and release the air from the air shaft 34 using the air nozzle 35 through the external air supply device. The photoelectric correction sensor 293 used in this case is the RLK160 series photoelectric correction sensor 293. When using it, the first servo motor 22, the second servo motor 32, the hydraulic cylinder 295 and the photoelectric correction sensor 293 need to be connected to the same PLC controller near the device to ensure the coordinated and automated operation of the equipment. The PLC controller is existing technology and its operation method is well known to those skilled in the art. It will not be described in detail in this case.

[0027] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A material feeding and correction device for a gravure printing machine, comprising a base (1), characterized in that: The base (1) is provided with a correction mechanism (2) at the top, and the correction mechanism (2) is provided with a winding mechanism (3) at the top. The correction mechanism (2) includes a fixed platform (21), which is fixedly connected to the top of the base (1). A first servo motor (22) is fixedly connected to the left side of the top of the fixed platform (21). A rotating rod (25) is fixedly connected to the top of the first servo motor (22). A rotating platform (26) is fixedly connected to the periphery of the rotating rod (25). A correction seat (27) is fixedly connected to the top of the rotating platform (26). A transmission roller (28) is fixedly connected to the left side of the correction seat (27). A correction roller (29) is fixedly connected to the right side of the correction seat (27). A support ring (291) is fixedly connected to the bottom of the rotating platform (26). A fixed plate (23) is fixedly connected to the front top of the fixed platform (21). A photoelectric correction sensor (293) is fixedly connected to the top of the fixed plate (23). A guide roller (292) is fixedly connected to the rear side of the fixed plate (23). A load-bearing frame (24) is fixedly connected to the right top of the fixed platform (21). A hydraulic cylinder (295) is fixedly connected to the top of the load-bearing frame (24). A mounting frame (296) is fixedly connected to the bottom of the hydraulic cylinder (295). A pressing roller (294) is rotatably connected to the inner side of the mounting frame (296).

2. The gravure printing machine feeding and correction device according to claim 1, characterized in that: The support ring (291) is rotatably connected to the top of the fixed platform (21), and the mounting frame (296) is slidably connected to the inside of the load-bearing frame (24).

3. The gravure printing machine feeding and correction device according to claim 1, characterized in that: The guide roller (292) is located to the right of the correction roller (29), and the pressing roller (294) is located to the right of the guide roller (292).

4. The gravure printing machine feeding and correction device according to claim 1, characterized in that: The winding mechanism (3) includes a load-bearing plate (31), which is fixedly connected to the top right side of the fixed platform (21). A second servo motor (32) is fixedly connected to the rear side of the load-bearing plate (31). A rotating shaft (33) is fixedly connected to the front side of the second servo motor (32). An air shaft (34) is fixedly connected to the front side of the rotating shaft (33). An air nozzle (35) is fixedly connected inside the front end of the air shaft (34). A support arm (36) is slidably connected to the outer periphery of the front end of the air shaft (34). The support arm (36) is located on the front side of the fixed platform (21). A fixed shaft (37) is threadedly connected inside the support arm (36).

5. The gravure printing machine feeding and correction device according to claim 4, characterized in that: The rotating shaft (33) is rotatably connected inside the load-bearing plate (31).

6. The gravure printing machine feeding and correction device according to claim 4, characterized in that: The air shaft (34) is rotatably connected inside the load-bearing plate (31), and the air shaft (34) is located to the right of the pressing roller (294).

7. The gravure printing machine feeding and correction device according to claim 4, characterized in that: The rear side of the support arm (36) is in contact with the front side of the fixed platform (21), and the fixed shaft (37) passes through the interior of the fixed platform (21).

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