A static electricity elimination device for a bag making production line

Abstract

The utility model belongs to the field of static elimination, specifically is a kind of bag making production line static elimination equipment, including a pair of rack, a pair of ion wind stick are located between a pair of the rack;The ion wind stick is respectively located at the both sides of film, and the side of ion wind stick towards film is set as porous;The both sides of ion wind stick are fixedly connected with connecting piece;Connecting piece end portion is fixedly connected with rack gear, and rack gear is slidingly connected with rack;Gear is rotatably connected on the rack;Gear and adjacent one pair of rack are in meshing relationship;The side of rack is equipped with motor;Through the meshing effect of rack gear and gear, can make rack drive ion wind stick move relative to film, and then can be according to actual film width, thickness and production line speed, accurately adjust ion wind stick to its rated best working distance, on this distance, ion concentration and coverage area reach optimal balance, ensure that the whole film surface is evenly, efficiently neutralized.

Description

Technical Field

[0001] This utility model relates to the field of static electricity elimination, specifically a static electricity elimination device for a bag making production line. Background Technology

[0002] Garbage bags are primarily made from polyethylene or polypropylene plastic films using specialized bag-making production lines. This production line is a highly automated, continuous process, typically including core steps such as plastic particle feeding, melt extrusion, blown film forming, cooling and winding, printing, film traction, fixed-length stacking and cutting, bag opening punching, and final heat sealing and counting / packing. Its goal is to efficiently and consistently produce flat-mouth or vest-style garbage bags of various specifications, thicknesses, and load-bearing capacities.

[0003] During high-speed production, the intense friction and separation between the film and numerous guide rollers generates a large amount of static electricity. This static electricity can cause the film to adhere to the equipment or stick to itself, leading to film deviation, printing misalignment, and uneven winding. Furthermore, it can attract dust from the environment, contaminating the bag surface and severely impacting product quality. To address this problem, the most mainstream and efficient method is to install ionizers at key stations such as winding, printing, and cutting. The positive and negative ion airflow they generate neutralizes the charge on the film surface, effectively eliminating static electricity and ensuring smooth production and product cleanliness.

[0004] In existing technologies, ion air bars on production lines are mostly fixed installations, with their brackets typically locked to the frame by simple screws. During use and observation, it has been found that this installation method makes it difficult to adjust the distance between the ion air bar and the film, which can easily lead to uneven ion coverage or reduced neutralization efficiency due to improper distance, ultimately affecting the static elimination effect and the stability of product quality.

[0005] Therefore, an electrostatic elimination device for bag making production lines is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A static elimination device for a bag-making production line, comprising a pair of frames, with a pair of ion air bars between the frames; the ion air bars are located on both sides of the film, and the side of the ion air bars facing the film is perforated; connecting parts are fixedly connected to both sides of the ion air bars; racks are fixedly connected to the ends of the connecting parts, and the racks are slidably connected to the frames; gears are rotatably connected to the frames; the gears are meshed with an adjacent pair of racks; a motor is located on one side of the frame; the output end of the motor is fixedly connected to an adjacent gear; through the meshing action of the racks and gears, the racks can drive the ion air bars to move relative to the film, thereby precisely adjusting the ion air bars to their rated optimal working distance according to the actual film width, thickness, and production line speed. At this distance, the ion concentration and coverage area reach an optimal balance, ensuring uniform and efficient neutralization of the entire film surface.

[0008] Preferably, the ionizing air bar includes: a first air inlet, located on one side of the ionizing air bar, with one end connected to the ionizing air bar and the other end connected to a low-pressure air source via a flexible hose; a high-pressure electrode, fixedly located inside the ionizing air bar, with one end connected to a high-pressure generator via a data cable; multiple ionizing needles, fixedly installed at the bottom of the high-pressure electrode; a cleaning tube, fixedly located inside the ionizing air bar, with a multi-hole design at the bottom; and a second air inlet, fixedly located on the outside of the ionizing air bar, with one end connected to the cleaning tube and the other end connected to a high-pressure air source via a flexible hose. By providing the cleaning tube and the second air inlet, the ionizing needles can be cleaned by air jetting, improving the convenience of cleaning the ionizing needles.

[0009] Preferably, a perforated plate is fixedly connected to the first and second air inlets; a spring is fixedly connected to the side of the perforated plate facing the ion air bar; a ball is fixedly connected to the end of the spring; a ball seat that fits against the ball is fixedly provided on the inner wall of the first and second air inlets; in the initial state, the ball will be tightly attached to the ball seat under the elastic force of the spring. When the low-pressure air source or the high-pressure air source is started, the ball will be pushed out under the action of air pressure and stop sealing the ball seat. This setting can ensure that the low-pressure air source and the high-pressure air source will not interfere with each other when the ion air bar is working or under maintenance, ensuring unidirectional flow of airflow.

[0010] Preferably, the bottom of the ion air bar is connected to multiple connecting parts; the outer wall of the connecting parts is threaded with a nozzle; the end of the nozzle is arranged in an arc shape with multiple holes; by setting the nozzle and connecting parts, on the one hand, the arc shape with multiple holes at the bottom of the nozzle can amplify the ion airflow emitted by the ion air bar when it is working, thereby increasing the contact area between the airflow and the film; on the other hand, the threaded connection between the nozzle and the connecting parts can quickly disassemble the nozzle, and when the cleaning tube cleans the ion needle with air jet, disassembling the nozzle can reduce the dust remaining in the nozzle.

[0011] Preferably, a filter element is fixedly connected inside the nozzle; the filter element inside the nozzle optimizes the disassembly of the nozzle when the cleaning tube cleans the ionization needle with air jets, and the dust removed from the ionization needle can be adsorbed on the inner wall of the filter element. With this setting, only the nozzle and filter element need to be replaced periodically.

[0012] Preferably, the motor is provided with a support base at its bottom; by providing the support base, the motor can be supported, thereby improving the stability of the motor during operation.

[0013] The advantages of this utility model are:

[0014] 1. The electrostatic elimination equipment for a bag making production line described in this utility model can move the ion air bar relative to the film through the meshing action of the rack and gear. In this way, the ion air bar can be precisely adjusted to its rated optimal working distance according to the actual film width, thickness and production line speed. At this distance, the ion concentration and coverage area reach the optimal balance, ensuring that the entire film surface is neutralized uniformly and efficiently.

[0015] 2. The electrostatic elimination equipment for a bag making production line described in this utility model can perform air jet cleaning on the ionization needles by setting up a cleaning pipe and a second air inlet, thereby improving the convenience of cleaning the ionization needles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the ion air bar in this utility model;

[0019] Figure 3 This is a schematic diagram of the high-voltage electrode structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the perforated plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the filter element in this utility model.

[0022] In the diagram: 1. Frame; 12. Ionizing air bar; 13. Connector; 14. Rack; 15. Gear; 16. Motor; 2. First air inlet; 22. High-voltage electrode; 23. Ionizing needle; 24. Cleaning tube; 25. Second air inlet; 3. Orifice plate; 32. Spring; 33. Sphere; 4. Nozzle; 42. Connector; 5. Filter element; 6. Support base. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1 to 5 As shown in the embodiment of this utility model, an electrostatic elimination device for a bag-making production line includes a pair of frames 1, with a pair of ion air bars 12 disposed between the pair of frames 1. The ion air bars 12 are located on both sides of the film, and the side of the ion air bars 12 facing the film is perforated. Connectors 13 are fixedly connected to both sides of the ion air bars 12. A rack 14 is fixedly connected to the end of the connector 13, and the rack 14 is slidably connected to the frame 1. A gear 15 is rotatably connected to the frame 1. The gear 15 is meshed with the adjacent pair of racks 14. A motor 16 is disposed on one side of the frame 1. The output end of the motor 16 is fixedly connected to the adjacent gear 15. During operation, the distance between the ion air bars 12 and the film can be adjusted according to production needs. Specifically, the motor 16 is started, and after the motor 16 is started, the directly connected gear 15 is engaged. 5. When the gear 15 rotates, it can mesh with the racks 14 on both sides. The racks 14 will move vertically along the frame 1 under the meshing action. During the process, the racks 14 on both sides can drive a pair of ion air bars 12 to move together through the connector 13, driving the pair of ion air bars 12 to move closer to or further away from the film at the same time. In this way, the distance between the ion air bars 12 and the film can be adjusted to the optimal working distance, so that the ion concentration and coverage area reach the best balance. Through the meshing action of the racks 14 and the gear 15, the racks 14 can drive the ion air bars 12 to move relative to the film. In this way, the ion air bars 12 can be precisely adjusted to their rated optimal working distance according to the actual film width, thickness and production line speed. At this distance, the ion concentration and coverage area reach the best balance, ensuring that the entire film surface is neutralized uniformly and efficiently.

[0026] Please see Figure 3 and Figure 4As shown, the ion bar 12 includes: a first air inlet 2, located on one side of the ion bar 12, with one end connected to the ion bar 12 and the other end connected to a low-pressure air source via a flexible hose; a high-voltage electrode 22, fixedly located inside the ion bar 12, with one end connected to a high-voltage generator via a data cable; multiple ionization needles 23, fixedly installed at the bottom of the high-voltage electrode 22; a cleaning tube 24, fixedly located inside the ion bar 12, with a porous bottom; and a second air inlet 25, fixedly located on the outside of the ion bar 12, with one end connected to the cleaning tube 24 and the other end connected to a high-pressure air source via a flexible hose. When the ion bar 12 is working, the high-voltage generator generates a high-voltage current and delivers it to the high-voltage electrode 22. The high-voltage electrode 22 conducts the high voltage to the ionization needles 23, and the tip of the ionization needles 23 ionizes the surrounding air molecules, separating them into positive and negative ions. Simultaneously, the first air inlet 2 sends compressed air into the ion bar 12 through a low-pressure air source. The compressed air can pass over the ionization needle 23 and blow out a large number of positive and negative ions. The ion-rich airflow is blown to the surface of the film to neutralize the static charge on the film surface. In addition, when the ionization needle 23 has been working for a long time, dust will adhere to its surface, affecting the ionization effect of the ionization needle 23 on the air. At this time, production can be stopped, and the high-pressure air source connected to the end of the second air inlet 25 can be activated to drive the high-pressure airflow to be sprayed out through the bottom of the cleaning pipe 24. The dust adhering to the surface of the ionization needle 23 can be cleaned under the action of high-pressure air jet. It is worth mentioning that the connection between the hose and the first air inlet 2 and the second air inlet 25 is not shown in the figure. This is a common connection method in the field. By setting the cleaning pipe 24 and the second air inlet 25, the ionization needle 23 can be cleaned by air jet, which improves the convenience of cleaning the ionization needle 23.

[0027] Please see Figure 4 As shown, a perforated plate 3 is fixedly connected inside the first air inlet 2 and the second air inlet 25; a spring 32 is fixedly connected to the side of the perforated plate 3 facing the ion air bar 12; a ball 33 is fixedly connected to the end of the spring 32; a ball seat that fits against the ball 33 is fixedly provided on the inner wall of the first air inlet 2 and the second air inlet 25; in the initial state, the ball 33 will be tightly attached to the ball seat under the elastic force of the spring 32. When the low-pressure air source or the high-pressure air source is started, the ball 33 will be pushed out under the action of air pressure and stop sealing the ball seat. This setting can ensure that the low-pressure air source and the high-pressure air source will not interfere with each other when the ion air bar 12 is working or under maintenance, ensuring the unidirectional flow of airflow.

[0028] Please see Figure 4 and Figure 5As shown, the bottom of the ion bar 12 is connected to multiple connecting parts 42; the outer wall of the connecting part 42 is threaded with a nozzle 4; the end of the nozzle 4 is arranged in an arc shape with multiple holes; by setting the nozzle 4 and the connecting part 42, on the one hand, the arc shape with multiple holes at the bottom of the nozzle 4 can expand the ion airflow emitted by the ion bar 12 when it is working, thereby increasing the contact area between the airflow and the film; on the other hand, the threaded connection between the nozzle 4 and the connecting part 42 can quickly disconnect the nozzle 4. When the cleaning tube 24 cleans the ion needle 23 with air jet, the dust remaining in the nozzle 4 can be reduced by disassembling the nozzle 4.

[0029] Please see Figure 5 As shown, a filter element 5 is fixedly connected inside the nozzle 4; the filter element 5 is installed inside the nozzle 4, which can optimize the disassembly operation of the nozzle 4 when the cleaning tube 24 cleans the ionization needle 23 with air jet. The dust removed from the ionization needle 23 can be adsorbed on the inner wall of the filter element 5. With this setting, the nozzle 4 and the filter element 5 only need to be replaced periodically.

[0030] Please see Figure 1 and Figure 2 As shown, a support base 6 is provided at the bottom of the motor 16; by providing the support base 6, the motor 16 can be supported, thereby improving the stability of the motor 16 during operation.

[0031] Working principle: The distance between the ion bar 12 and the film is adjusted according to production needs. Specifically, the motor 16 is started, which rotates the directly connected gear 15. When the gear 15 rotates, it meshes with the racks 14 on both sides. Under this meshing action, the racks 14 move vertically along the frame 1. During this process, the racks 14 on both sides can drive the pair of ion bars 12 to move together via the connector 13, causing the pair of ion bars 12 to simultaneously move closer to or further away from the film. This allows for adjustment of the distance between the ion bars 12 and the film, adjusting the ion bars 12 to the optimal working distance to achieve the best balance between ion concentration and coverage area. When the ion bars 12 are working, the high-voltage generator produces high voltage. The current is transmitted to the high-voltage electrode 22, which conducts the high voltage to the ionization needle 23. The tip of the ionization needle 23 ionizes the surrounding air molecules, separating them into positive and negative ions. Simultaneously, the first air inlet 2 sends compressed air into the ionization bar 12 through a low-pressure air source. The compressed air passes over the ionization needle 23 and blows out a large number of positive and negative ions. The ion-rich airflow is blown to the surface of the film, neutralizing the static charge on the film surface. However, if dust accumulates on the surface of the ionization needle 23 after prolonged operation, it will affect the ionization effect of the ionization needle 23 on the air. At this time, production can be stopped, and the high-pressure air source connected to the end of the second air inlet 25 can be activated to drive the high-pressure airflow through the cleaning pipe 2. 4. The dust adhering to the surface of the ionizing needle 23 can be cleaned by the high-pressure air jet. It is worth mentioning that the connection between the hose and the first air inlet 2 and the second air inlet 25 is not shown in the figure. This is a common connection method in the field. In the initial state, the ball 33 will be tightly attached to the ball seat under the elastic force of the spring 32. When the low-pressure air source or the high-pressure air source is started, the ball 33 will be pushed out under the action of air pressure and stop sealing the ball seat. This setting can ensure that the low-pressure air source and the high-pressure air source will not interfere with each other when the ionizing air bar 12 is working or under maintenance, ensuring the unidirectional flow of airflow. By setting the nozzle 4 and the connecting part 42, on the one hand, the arc-shaped multi-hole setting at the bottom of the nozzle 4 can clean the ionizing air. The ionized gas flow emitted by rod 12 during operation is amplified, thereby increasing the contact area between the gas flow and the film. On the other hand, the threaded connection between nozzle 4 and connecting part 42 allows for quick disassembly of nozzle 4. When cleaning tube 24 air-purifies ionizing needle 23, disassembling nozzle 4 can reduce the amount of dust remaining in nozzle 4. A filter element 5 is installed inside nozzle 4, which optimizes the disassembly operation of nozzle 4 when cleaning tube 24 air-purifies ionizing needle 23. The dust removed from ionizing needle 23 can be adsorbed on the inner wall of filter element 5. With this setup, only periodic replacement of nozzle 4 and filter element 5 is required. By providing support base 6, motor 16 can be supported, improving the stability of motor 16 during operation.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A static electricity elimination device for a bag making production line, comprising a pair of frames (1), characterized in that: A pair of ion air bars (12) are provided between a pair of frames (1); the ion air bars (12) are located on both sides of the film, and the side of the ion air bars (12) facing the film is perforated; a connector (13) is fixedly connected to both sides of the ion air bars (12); a rack (14) is fixedly connected to the end of the connector (13), and the rack (14) is slidably connected to the frame (1); a gear (15) is rotatably connected to the frame (1); the gear (15) is meshed with the adjacent pair of racks (14); a motor (16) is provided on one side of the frame (1); the output end of the motor (16) is fixedly connected to the adjacent gear (15).

2. The static electricity elimination equipment for a bag-making production line according to claim 1, characterized in that: The ion bar (12) includes: The first air inlet (2) is located on one side of the ion bar (12), with one end connected to the ion bar (12) and the other end connected to the low-pressure air source through a hose. The high-voltage electrode (22) is fixedly installed inside the ion wind bar (12), and one end is connected to the high-voltage generator via a data cable; Ionization needles (23) are arranged in multiple ways and are fixedly installed at the bottom of the high-voltage electrode (22); The cleaning tube (24) is fixedly installed inside the ion air bar (12), and the bottom is multi-hole. The second air inlet (25) is fixedly installed on the outside of the ion fan bar (12), with one end connected to the cleaning pipe (24) and the other end connected to the high-pressure air source through a hose.

3. The static electricity elimination equipment for a bag-making production line according to claim 2, characterized in that: A perforated plate (3) is fixedly connected inside the first air inlet (2) and the second air inlet (25); a spring (32) is fixedly connected to the side of the perforated plate (3) facing the ion wind bar (12); a ball (33) is fixedly connected to the end of the spring (32); a ball seat that fits against the ball (33) is fixedly provided on the inner wall of the first air inlet (2) and the second air inlet (25).

4. The static electricity elimination equipment for a bag-making production line according to claim 3, characterized in that: The bottom of the ion bar (12) is connected to multiple connecting parts (42); the outer wall of the connecting part (42) is threaded with a nozzle (4); the end of the nozzle (4) is arranged in an arc shape with multiple holes.

5. The static electricity elimination equipment for a bag-making production line according to claim 4, characterized in that: The nozzle (4) has a filter element (5) fixed inside.

6. The static electricity elimination equipment for a bag-making production line according to claim 5, characterized in that: The motor (16) is provided with a support base (6) at its bottom.

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