A printed paper static eliminator

Abstract

The utility model relates to a kind of printing paper static elimination equipment, it is related to the technical field of printing equipment, it includes the alternating current ion fan fixed on printing machine by quick-release clamp clamping, fan wheel is installed in alternating current ion fan, alternating current ion fan is opened towards printing paper side with strip air outlet, strip air outlet position is provided with guide fence and installs ion generator in guide fence inboard, ion generator includes ion needle frame and the discharge end distributed on ion needle frame, charged ion flow is transported to printing paper surface under the action of airflow generated by fan wheel by ion generator output, adjustable low wind speed natural airflow is output by fan wheel, both ensure the effective delivery of charged ion, and also do not interfere with the stable operation of printing paper, charged ion and printing paper static charge neutralization realizes effective static elimination effect.

Description

Technical Field

[0001] This utility model relates to the technical field of printing equipment, and in particular to a static electricity elimination device for printing paper. Background Technology

[0002] During the printing process, paper is prone to static electricity due to friction and separation, which causes dust to adhere to the paper surface and cause overlapping wrinkles, seriously affecting printing quality and production efficiency.

[0003] Existing electrostatic elimination equipment for printing paper is poorly designed, inconvenient to assemble and maintain, and often uses compressed air to transport charged ion streams. However, the airflow intensity generated by compressed air is relatively high, which can easily cause turbulence or paper adsorption, affecting the stable operation of the paper and greatly limiting the adaptability of electrostatic elimination equipment to different types of paper. Utility Model Content

[0004] In order to improve the problems in the process of eliminating static electricity in printing paper in the above-mentioned background art, this utility model provides a static electricity elimination device for printing paper.

[0005] The electrostatic elimination device for printed paper provided by this utility model adopts the following technical solution:

[0006] An electrostatic elimination device for printing paper includes an AC ion fan installed on the conveyor channel of a printing press. The AC ion fan has a fan wheel inside and a strip-shaped air outlet facing the side of the printing paper. A flow guide grid is provided at the position of the strip-shaped air outlet, and an ion generator is installed inside the flow guide grid. The ion generator is connected to an AC transformer.

[0007] Preferably, the ion generator includes an ion needle holder and discharge ends distributed on the ion needle holder, the discharge ends alternately generating positive and negative ions, and the discharge ends are staggered with the flow guide fence body.

[0008] Preferably, the airflow guide fence is connected as a whole, and the ends of the airflow guide blades that make up the airflow guide fence are connected and rotatably connected to the strip-shaped air outlet.

[0009] Preferably, the fan wheel has a rotating shaft along its axis and is externally connected to the output end of a geared motor, which is connected to an external power source.

[0010] Preferably, the AC ion fan is clamped and fixed to the printing machine by quick-release clamps on both sides.

[0011] Preferably, the AC ion fan is installed between the feed roller and the transition roller of the printing press, and the bottom of the AC ion fan is 15-20mm above the surface of the printed paper.

[0012] Preferably, the AC ion fan integrates a control module, which is electrically connected to an electrostatic sensor that contacts the surface of the printed paper.

[0013] In summary, this utility model has the following beneficial technical effects:

[0014] 1. This utility model designs a static electricity elimination device for printing paper. It uses an ion generator to alternately output positively and negatively charged ion streams. Under the action of airflow generated by a fan wheel, the charged ion streams are transported to the surface of the printing paper. The charged ions neutralize the static charge of the printing paper, achieving an effective static electricity elimination effect.

[0015] 2. This utility model installs a fan wheel inside the AC ion fan. The fan wheel is driven to rotate by a geared motor and outputs an adjustable low-speed natural airflow. This ensures the effective delivery of charged ions without interfering with the stable operation of the printing paper. It also prevents the effects of adsorption or turbulence caused by the output compressed air on soft and thin paper, as is present in existing equipment, and expands the scope of application.

[0016] 3. This utility model is easy to assemble with an AC ion fan, a flow guide grid, and an ion generator. Individual units can be replaced during maintenance. The entire device is clamped and fixed on the printing machine by quick-release clamps, making installation convenient and facilitating the modification of existing models. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a static electricity elimination device for printed paper according to an embodiment of this utility model;

[0018] Figure 2 This is a front view of the AC ion fan according to an embodiment of the present utility model;

[0019] Figure 3 This is a perspective view of the internal structure of the AC ion fan according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the ion needle holder according to an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached diagram: 1. Printing press; 2. AC ion fan; 3. Fan wheel; 4. Strip-shaped air outlet; 5. Flow guide grille; 6. Ion generator; 7. AC transformer; 8. Ion needle holder; 9. Discharge end; 10. Rotating shaft; 11. Gear motor; 12. Quick release clamp; 13. Flow guide vane; 14. Control module. Detailed Implementation

[0022] The following combination Figures 1-4 The present invention will be described in further detail below.

[0023] This utility model discloses a static electricity elimination device for printing paper.

[0024] Reference Figure 1 , Figure 2 , Figure 3 An electrostatic elimination device for printing paper includes an AC ion fan 2 installed on the conveying channel of a printing press 1. The AC ion fan 2 has a fan wheel 3 inside. The AC ion fan 2 has a strip-shaped air outlet 4 facing the side of the printing paper. A guide grille 5 is set at the position of the strip-shaped air outlet 4, and an ion generator 6 is installed inside the guide grille 5. The ion generator 6 is connected to an AC transformer 7. The AC transformer 7 uses a transformer, is connected to an external power supply, and realizes voltage rise and fall.

[0025] Reference Figure 3 , Figure 4 The ion generator 6 includes an ion needle holder 8 and discharge terminals 9 distributed on the ion needle holder 8. The discharge terminals 9 are typically metal ion needles or electrode plates. The AC transformer 7 alternately outputs positive and negative voltages at a frequency of 50Hz. Air molecules near the discharge terminals 9 are ionized, and the discharge terminals 9 alternately generate positive and negative ions. The discharge terminals 9 are misaligned with the main body of the current guide fence 5. The ion generator 6 is connected to a high-voltage power supply and outputs a charged ion flow at the discharge terminals 9. The charged ions neutralize the electrostatic charge of the printing paper to eliminate static electricity. When the surface of the printing paper is at a positive potential, the negative ions output by the discharge terminals 9 will neutralize it; conversely, if the surface of the printing paper is at a negative potential, the positive ions output by the discharge terminals 9 will neutralize it.

[0026] Reference Figure 1 , Figure 2 , Figure 3 The flow guide fence 5 is connected as a whole. The ends of the flow guide blades 13 that make up the flow guide fence 5 are connected and rotatably connected to the strip-shaped air outlet 4. A frame is provided around the flow guide fence 5. Adjusting the direction of the flow guide blades 13 of the flow guide fence 5 can adjust the output direction of the airflow. Both the AC ion fan 2 and the flow guide fence 5 are made of insulating materials.

[0027] Reference Figure 1 , Figure 2 The strip-shaped air outlet 4 is designed with a width greater than that of conventional printing paper, ensuring the elimination of static electricity across the entire printing paper surface and avoiding local static electricity residue; the AC ion fan 2 has an air inlet on the back side, and a filter screen is installed at the air inlet.

[0028] Reference Figure 3 The fan wheel 3 has a rotating shaft 10 along its axis and is connected to the output end of a geared motor 11. The geared motor 11 is connected to an external power supply. The fan wheel 3 generates a directional low-speed airflow, which "carries" the charged ion flow output by the ion generator 6 and moves it directionally to the surface of the printing paper.

[0029] Reference Figure 1 , Figure 3 The AC ion fan 2 is clamped and fixed on the printing machine 1 by quick-release clamps 12 on both sides. The quick-release clamps 12 include connecting arms symmetrically arranged on both sides of the AC ion fan. The ends of the connecting arms are provided with arc-shaped chucks. A screw passes through the middle of the arc-shaped chuck. The screw is connected to an anti-slip rubber pad and abuts against the body plate of the printing machine 1. The AC ion fan 2 is installed between the feed roller and the transition roller of the printing machine 1. The bottom of the AC ion fan 2 is 15-20mm above the surface of the printed paper.

[0030] Reference Figure 1 , Figure 2 , Figure 3 The AC ion fan 2 integrates a control module 14, and an electrostatic sensor is set on the conveying channel of the printing machine 1. The control module 14 is electrically connected to the electrostatic sensor that contacts the surface of the printing paper. When the electrostatic sensor 15 detects that the static electricity residue on the surface of the printing paper is >50V, it will prompt on the control module 14.

[0031] The implementation principle of this utility model is as follows: The AC ion fan 2 is clamped and fixed to the printing machine 1 by quick-release clamps 12 on both sides. The ion generator 6 is connected to a high-voltage power supply and alternately outputs positively and negatively charged ion streams at the discharge end 9. The geared motor 11 drives the fan wheel 3 to generate a directional low-speed airflow, which "carries" the charged ion stream output by the ion generator 6 to the surface of the printing paper. The charged ions neutralize the static charge of the printing paper to eliminate static electricity. The positive and negative ions generated by the AC ion fan 2 can neutralize the original positive and negative ions on the surface of the printing paper, respectively. When the surface of the printing paper is at a positive potential, the negative ions will neutralize it, and vice versa. At the same time, the AC ion fan 2 alternately generates positive and negative ions, which can neutralize the ions remaining on the surface of the printing paper due to excessive neutralization.

[0032] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A static electricity elimination device for printed paper, characterized in that: The device includes an AC ion fan (2) installed on the conveying channel of the printing press (1). The AC ion fan (2) has a fan wheel (3) inside. The AC ion fan (2) has a strip-shaped air outlet (4) facing the printing paper. A guide rail (5) is provided at the position of the strip-shaped air outlet (4), and an ion generator (6) is installed inside the guide rail (5). The ion generator (6) is connected to an AC transformer (7).

2. The electrostatic elimination device for printing paper according to claim 1, characterized in that: The ion generator (6) includes an ion needle holder (8) and discharge ends (9) distributed on the ion needle holder (8). The discharge ends (9) alternately generate positive and negative ions. The discharge ends (9) are misaligned with the main body of the flow guide fence (5).

3. The electrostatic elimination device for printing paper according to claim 1, characterized in that: The flow guide fence (5) is connected as a whole, and the ends of the flow guide blades (13) that make up the flow guide fence (5) are connected and rotatably connected to the strip-shaped air outlet (4).

4. The electrostatic elimination device for printing paper according to claim 1, characterized in that: The fan wheel (3) is provided with a rotating shaft (10) along the axis and connected to the output end of a geared motor (11), which is connected to an external power source.

5. The electrostatic elimination device for printing paper according to claim 1, characterized in that: The AC ion fan (2) is clamped and fixed on the printing machine (1) by quick-release clamps (12) on both sides.

6. The electrostatic elimination device for printing paper according to claim 5, characterized in that: The AC ion fan (2) is installed between the feed roller and the transition roller of the printing press (1), and the bottom of the AC ion fan (2) is 15-20mm above the surface of the printing paper.

7. The electrostatic elimination device for printing paper according to claim 1, characterized in that: The AC ion fan (2) is equipped with a control module (14), which is electrically connected to an electrostatic sensor that contacts the surface of the printed paper.

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