A feeding device of a high-speed printing machine

Abstract

This utility model relates to the field of printing press technology, and more particularly to a feeding device for a high-speed printing press, comprising an industrial high-speed printing press and a feeding mechanism. The feeding mechanism includes a base and a structural groove. A slider is slidably engaged inside the structural groove. A support is fixedly installed on the upper side of the slider. A first electric push rod is fixedly installed on the support. A pressure sensor is fixedly installed on the output end of the first electric push rod. A hollow column is fixedly installed on the side of the pressure sensor. A rubber abutment ring is fixedly installed at the end of the hollow column. A connecting rod is slidably inserted into the inner side of the hollow column. A spring is fixedly connected between the connecting rod and the inside of the hollow column. This utility model, through its feeding mechanism, increases the conveying tension of the printing roll when the printing roll is relatively loose during feeding. This increases the frictional resistance during unloading, thereby ensuring the printing roll is laid flat and wrinkle-free upon entering the printer, guaranteeing printing quality and enhancing practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a feeding device for a high-speed printing machine. Background Technique

[0002] In the modern printing industry, high-speed printing machines have become the core equipment in the fields of packaging printing, commercial printing, etc. due to their high printing efficiency, and are widely used in the continuous printing production of printing webs such as web paper and plastic films.

[0003] Currently, most of the feeding devices supporting high-speed printing machines adopt a simple rotating shaft support structure, and the initial control of the tension during the unwinding process is realized by the self-gravity of the printing web or fixed damping members. However, in the actual production process, such traditional feeding devices have obvious technical defects: on the one hand, due to the differences in the materials (such as paper, film), thickness, and width of the printing web, and the diameter of the printing web will continuously decrease as the unwinding amount increases during the unwinding process, the traditional fixed damping type of tension control method cannot dynamically adjust the frictional resistance according to the actual state of the printing web, resulting in unstable tension of the printing web during the conveying process; on the other hand, when the printing web is slack during the feeding process, the existing device lacks precise pressure monitoring and adjusting components, and cannot compensate the tension in time by accurately increasing the unwinding frictional resistance, which further causes problems such as wrinkles and offsets of the printing web conveyed to the printing machine, not only seriously affecting the pattern accuracy and color consistency of the printed matter, but also possibly resulting in waste of the printing web and shutdown adjustment of the printing machine, reducing production efficiency.

[0004] To solve the above problems, we propose a feeding device for a high-speed printing machine. Content of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings in the prior art, and a feeding device for a high-speed printing machine is proposed.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A feeding device for a high-speed printing machine includes an industrial high-speed printing machine and a feeding mechanism; the feeding mechanism includes a base and a structure groove, a slider is slidably clamped inside the structure groove, a support is fixedly installed on the upper side of the slider, a first electric push rod is fixedly installed on the support, a pressure sensor is fixedly installed on the output end of the first electric push rod, a hollow column is fixedly installed on one side of the pressure sensor, a rubber abutting ring is fixedly installed at the end of the hollow column, a docking rod is slidably inserted inside the hollow column, and a spring is fixedly connected between the docking rod and the inside of the hollow column.

[0008] Furthermore, a vertical plate is fixedly installed on the upper side of the base, a rotating shaft is rotatably installed on the side of the vertical plate, and a material roll is slidably sleeved on the outer side of the rotating shaft.

[0009] Furthermore, an end plate is fixedly installed at the end of the shaft, and a mating hole is opened on the inner side of the end plate. The inner diameter of the mating hole is adapted to the outer diameter of the mating rod, and several friction protrusions are evenly distributed on the side of the end plate.

[0010] Furthermore, a snap-fit ​​protrusion is provided on the outer wall of the rotating shaft, and a groove adapted to the snap-fit ​​protrusion is provided on the inner side of the material roll.

[0011] Furthermore, the structural groove is fixedly installed on the upper side of the base, a side plate is fixedly installed at the end of the structural groove, a second electric push rod is fixedly installed on the side of the side plate, and the output end of the second electric push rod is fixedly connected to the support.

[0012] Furthermore, a guide roller is rotatably mounted on the side of the base.

[0013] Furthermore, a controller is fixedly installed on the side of the industrial high-speed printing machine, and guide rollers are symmetrically rotated on both sides of the industrial high-speed printing machine.

[0014] Furthermore, a printing roll is wound around the outside of the material roll, and the printing roll passes through the printing channel of an industrial high-speed printing press.

[0015] Compared with related technologies, the feeding device for a high-speed printing machine proposed in this utility model has the following beneficial effects:

[0016] In this invention, a feeding device for a high-speed printing machine includes a feeding mechanism with components for adjusting the conveying tension. Activating the first electric push rod causes a rubber abutment ring on the side of the hollow column to abut against the end plate at the end of the rotating shaft. The pressure applied by the second electric push rod is precisely monitored by a pressure sensor at its end. By appropriately controlling the pressure, the rubber abutment ring can apply a suitable rotational frictional resistance to the end of the rotating shaft. When the printing roll is relatively loose during feeding, the conveying tension of the printing roll can be increased by increasing the frictional resistance during unloading. This ensures that the printing roll delivered to the printer is flat and wrinkle-free, guaranteeing printing quality and enhancing practicality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a feeding device for a high-speed printing machine proposed in this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the feeding mechanism;

[0019] Figure 3A schematic diagram of the three-dimensional disassembled structure of the feeding mechanism;

[0020] Figure 4 for Figure 3 Enlarged diagram of part A in the middle;

[0021] Figure 5 A three-dimensional structural diagram of some components of the feeding mechanism;

[0022] Figure 6 This is a three-dimensional cross-sectional schematic diagram of some components of the feeding mechanism.

[0023] In the diagram: 1. Industrial high-speed printing machine; 2. Controller; 3. Guide roller; 4. Printing roll; 5. Feeding mechanism; 51. Base; 52. Guide roller; 53. Vertical plate; 54. Rotating shaft; 55. Printing roll; 56. End plate; 57. Friction ridge; 58. Butt hole; 59. Structural groove; 510. Slider; 511. Support; 512. First electric push rod; 513. Pressure sensor; 514. Hollow column; 515. Rubber abutment ring; 516. Butt rod; 517. Spring; 518. Side plate; 519. Second electric push rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Reference Figures 1-6 A feeding device for a high-speed printing machine includes an industrial high-speed printing machine 1 and a feeding mechanism 5. The feeding mechanism 5 includes a base 51 and a structural groove 59. A slider 510 is slidably engaged inside the structural groove 59. A support 511 is fixedly installed on the upper side of the slider 510. A first electric push rod 512 is fixedly installed on the support 511. A pressure sensor 513 is fixedly installed on the output end of the first electric push rod 512. A hollow column 514 is fixedly installed on the side of the pressure sensor 513. A rubber abutment ring 515 is fixedly installed at the end of the hollow column 514. A connecting rod 516 is slidably inserted into the inner side of the hollow column 514. A spring 517 is fixedly connected between the connecting rod 516 and the inside of the hollow column 514.

[0026] With the above-mentioned configuration, the spring 517 enables the docking rod 516 to have a certain self-adaptive shrinkage and abutment function. When the rubber abutment ring 515 abuts against the end plate 56 at the end of the rotating shaft 54, the docking rod 516 can be stably inserted into the docking hole 58 of the end plate 56 under the action of the spring 517. Thus, the other end of the rotating shaft 54 ​​also has a stable support effect, improving the stability of the rotating shaft 54 ​​when it rotates and feeds material. It should be noted that the present invention proposes a feeding device. On the other side of the industrial high-speed printing machine 1, a printing roll device needs to be equipped to collect the printed printing roll 4 and provide winding power. This printing roll device is a common piece of equipment in industrial production and will not be described in detail here.

[0027] In this configuration, the structural groove 59 is fixedly installed on the upper side of the base 51, and a side plate 518 is fixedly installed at the end of the structural groove 59. A second electric push rod 519 is fixedly installed on the side of the side plate 518, and the output end of the second electric push rod 519 is fixedly connected to the support 511.

[0028] With the above-described configuration, when the second electric push rod 519 is activated, it can push the rubber abutment ring 515 against the end of the rotating shaft 54, thereby adjusting the rotational friction resistance at the end of the rotating shaft 54. When it is necessary to replace the material roll 55, the first electric push rod 512 is activated to drive the docking rod 516 to disengage from the docking hole 58. Subsequently, the second electric push rod 519 is activated to slide the components on the entire support 511 to the side of the end of the rotating shaft 54. At this time, the used material roll 55 can be pulled out from the side of the rotating shaft 54. Then, the new material roll 55 can be slid into the outside of the rotating shaft 54. Replacing the material roll 55 is very convenient.

[0029] In this method, a vertical plate 53 is fixedly installed on the upper side of the base 51, and a rotating shaft 54 ​​is rotatably installed on the side of the vertical plate 53. A material roll 55 is slidably sleeved on the outer side of the rotating shaft 54. A snap-fit ​​protrusion is provided on the outer wall of the rotating shaft 54, and a groove that matches the snap-fit ​​protrusion is provided on the inner side of the material roll 55.

[0030] By setting the above method, when engaging the protrusion and the groove, the material roll 55 can be stably fitted and engaged on the outside of the rotating shaft 54, while there is no relative rotation between it and the rotating shaft 54.

[0031] In this method, an end plate 56 is fixedly installed at the end of the rotating shaft 54. A mating hole 58 is opened on the inner side of the end plate 56. The inner diameter of the mating hole 58 is adapted to the outer diameter of the mating rod 516. Several friction protrusions 57 are evenly distributed on the side of the end plate 56.

[0032] With the above-described arrangement, several friction ridges 57 are radially distributed (e.g., Figure 4As shown), when the rubber abutment ring 515 abuts against the end plate 56, it can increase the rotational friction resistance of the end plate 56. The magnitude of the rotational friction force can be changed by the magnitude of the lateral pressure applied by the first electric push rod 512, thereby further realizing the tension adjustment of the printing roll 4 during the conveying process.

[0033] In this method, a guide roller 52 is rotatably mounted on the side of the base 51, a controller 2 is fixedly mounted on the side of the industrial high-speed printing machine 1, guide rollers 3 are symmetrically rotatably mounted on both sides of the industrial high-speed printing machine 1, and a printing roll 4 is wound on the outside of the material roll 55. The printing roll 4 passes through the printing channel of the industrial high-speed printing machine 1.

[0034] With the above configuration, the guide roller 3 and the guide roller 52 are used to guide the printing roll 4.

[0035] The working principle of the feeding device for a high-speed printing machine provided by this utility model is as follows:

[0036] Before the device is put into use, the material roll 55 with the printing material 4 is first fitted onto the rotating shaft 54 ​​by matching the inner groove with the snap-fit ​​protrusion on the outer side of the rotating shaft 54, ensuring that the material roll 55 and the rotating shaft 54 ​​do not rotate relative to each other; then the free end of the printing material 4 is passed around the guide roller 52 on the side of the base 51 and the guide rollers 3 on both sides of the industrial high-speed printing machine 1, and inserted into the printing channel of the industrial high-speed printing machine 1, and connected to the winding device on the other side of the printing machine to complete the material loading preparation. At this time, the controller 2 can initialize the state of the first electric push rod 512 and the second electric push rod 519, so that the rubber abutment ring 515 at the end of the hollow column 514 does not contact the end plate 56 at the end of the rotating shaft 54 ​​temporarily, and the rotating shaft 54 ​​can drive the material roll 55 to be initially unloaded by the power of the winding device.

[0037] When the printing roll 4 becomes loose during transport, the controller 2 activates the first electric push rod 512, applying pressure to push the hollow column 514, causing the rubber abutment ring 515 to tightly abut against the side of the end plate 56. At this time, the connecting rod 516 inside the hollow column 514 synchronously follows the hollow column 514 and inserts into the inner side of the connecting hole 58. The elastic force of the spring 517 ensures that the end of the connecting rod 516 can always adaptively abut against the bottom of the inner side of the connecting hole 58, which can both stabilize and assist in supporting the rotating shaft 54 ​​and prevent the rubber abutment ring 515 from shifting laterally. The pressure sensor 513 at the end of the push rod 512 monitors the applied pressure in real time and feeds the data back to the controller 2. The controller 2 controls the rotational friction resistance between the rubber abutment ring 515 and the end plate 56 (and the side friction ridge 57) by adjusting the pressure, thereby increasing the conveying tension of the printing roll 4 and keeping the printing roll 4 flat and wrinkle-free before conveying it to the industrial high-speed printing machine 1 to ensure printing quality. If the tension of the printing roll 4 is too high, the pressure of the first electric push rod 512 can be adjusted in the opposite direction to reduce the friction resistance and achieve dynamic tension adaptation.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A feeding device for a high speed printing machine, characterized in that, Includes an industrial high-speed printing press (1) and a feeding mechanism (5); The feeding mechanism (5) includes a base (51) and a structural groove (59). A slider (510) is slidably engaged inside the structural groove (59). A support (511) is fixedly installed on the upper side of the slider (510). A first electric push rod (512) is fixedly installed on the support (511). A pressure sensor (513) is fixedly installed on the output end of the first electric push rod (512). A hollow column (514) is fixedly installed on the side of the pressure sensor (513). A rubber abutment ring (515) is fixedly installed at the end of the hollow column (514). A vertical plate (53) is fixedly installed on the upper side of the base (51). A rotating shaft (54) is rotatably installed on the side of the vertical plate (53). A material roll (55) is slidably sleeved on the outer side of the rotating shaft (54).

2. The feeding device of a high-speed printing machine according to claim 1, characterized in that, A connecting rod (516) is slidably inserted into the inner side of the hollow column (514), and a spring (517) is fixedly connected between the connecting rod (516) and the inside of the hollow column (514).

3. The feeding device of a high-speed printing machine according to claim 1, characterized in that, An end plate (56) is fixedly installed at the end of the shaft (54). A docking hole (58) is provided on the inner side of the end plate (56). The inner diameter of the docking hole (58) is adapted to the outer diameter of the docking rod (516). Several friction protrusions (57) are evenly distributed on the side of the end plate (56).

4. The feeding device of a high-speed printing machine according to claim 1, characterized in that, The outer wall of the rotating shaft (54) is provided with a snap-fit ​​protrusion, and the inner side of the material roll (55) is provided with a groove that matches the snap-fit ​​protrusion.

5. The feeding device of a high-speed printing machine according to claim 1, characterized in that, The structural groove (59) is fixedly installed on the upper side of the base (51). A side plate (518) is fixedly installed at the end of the structural groove (59). A second electric push rod (519) is fixedly installed on the side of the side plate (518). The output end of the second electric push rod (519) is fixedly connected to the support (511).

6. The feeding device of a high-speed printing machine according to claim 1, characterized in that, The base (51) is rotatably mounted with a guide roller (52) on its side.

7. The feeding device of a high-speed printing machine according to claim 1, characterized in that, The industrial high-speed printing machine (1) has a controller (2) fixedly installed on its side, and guide rollers (3) are symmetrically rotated on both sides of the industrial high-speed printing machine (1).

8. The feeding device of a high-speed printing machine according to claim 1, characterized in that, The outer side of the roll (55) is wound with printing material (4), which passes through the printing channel of the industrial high-speed printing machine (1).

Images