A humidifying and static electricity removing system of a printing machine

Abstract

The present application relates to the technical field of printing, and provide a kind of humidification and static elimination system of printing machine, including conveying frame, the discharge side of the conveying frame is equipped with printing machine body, the conveying frame includes support frame part, conveying part, humidification part, feeding part and static elimination part;The conveying part includes first conveying roller and second conveying roller installed on the support frame part, and the first conveying roller and second conveying roller are located on the feeding side of the printing machine body;The humidification part includes first humidification pipe fixed on the support frame part and several atomizing nozzles arranged on the first humidification pipe, and the mist is collected by humidification plate and then applied to the inner side of paper by lampwick again, so that the static electricity on the inner side of paper is also eliminated, and the inner and outer sides of paper are both eliminated static electricity, which is superior to prior art.

Description

Technical Field

[0001] This invention relates to the field of printing technology, and in particular to a humidification and static electricity removal system for a printing press. Background Technology

[0002] Printing presses differ from regular printers, but both can experience static electricity during use without human intervention. For example, to prevent paper jams caused by static electricity, printers may require manual page rearrangement before printing.

[0003] Printing presses are different. As industrial equipment, they are large in size, and the printing paper is in roll form. The paper is conveyed into the printing press by a conveyor system to complete the printing process. Due to the large size of the paper and the equipment, the static electricity generated is more severe. Current solutions include installing atomizing nozzles near the paper inlet to moisten the paper, or pouring liquid onto the base of the printing press to prevent static electricity from forming on the press itself. Both methods require manual operation, resulting in high labor costs and low efficiency. Furthermore, the mist only affects one side of the paper, leaving the other side still generating static electricity. Therefore, existing technologies need improvement. Summary of the Invention

[0004] To address the aforementioned issues and make the static electricity elimination method for industrial printing presses more reasonable, this invention provides a humidification and static electricity elimination system for printing presses, including a conveyor frame. The printing press body is located on the discharge side of the conveyor frame. The conveyor frame includes a support frame, a conveying part, a humidification part, a feeding part, and a static electricity elimination part. The conveying section includes a first conveying roller and a second conveying roller mounted on the support section, the first conveying roller and the second conveying roller being located on the feed side of the printing press body; The humidification section includes a first humidification pipe fixed on the support section and a plurality of atomizing nozzles disposed on the first humidification pipe. The atomizing nozzles are located above the feed side of the first conveying roller, and the spray direction is towards the outside of the printing paper. The feeding section includes a material roller connected to the support section. The material roller is located above the second conveying roller. Printing paper is wound on the material roller and used to feed the printing paper to the first conveying roller. The output end of the printing paper is conveyed to the second conveying roller via the first conveying roller and enters the printing machine body through the feed port. The static elimination part includes a humidifying plate fixed in the support part, one end of the humidifying plate is inclined upward and close to the atomizing nozzle, and the other end of the humidifying plate extends to the bottom side of the first conveying roller and the second conveying roller; The static elimination part also includes a horizontal section formed in one piece on the humidification plate, and a raised end formed in one piece along the horizontal section; The static elimination part also includes a seepage tube connected to the raised end, and the other end of the seepage tube is connected to the printing press body.

[0005] As a further preferred embodiment, the antistatic component further includes a wick cotton disposed within the horizontal section, lifting lugs welded to both sides of the support portion, and a second humidifying tube installed on the two lifting lugs. The wall of the second humidifying tube contacts the inner surface of the printing paper, the second humidifying tube is inserted through the inner surface of the printing paper, and the second humidifying tube has humidifying holes that contact the inner surface of the printing paper. The wick cotton is rectangular, with one side falling within the horizontal section and the other side passing through the second humidifying tube.

[0006] As a further preferred embodiment, there are several humidification holes, and these several humidification holes are evenly distributed along the circumference of the second humidification tube.

[0007] As a further preferred embodiment, the second humidifying tube is filled with a reinforcing rod, the portion of the wick inside the second humidifying tube passing through the reinforcing rod, both ends of the reinforcing rod being mounted on the two lifting lugs, and the two ends of the wick inside the second humidifying tube being fitted with latches, the two latches being fastened to the two ends of the second humidifying tube, and both ends of the reinforcing rod passing through the two latches.

[0008] As a further preferred embodiment, the wick is made of multiple wick units wound together, and the two ends of the wick units are locked and fixed by the latches.

[0009] As a further preferred embodiment, a plurality of atomizing nozzles are arranged in a row, and the mist outlets of the plurality of atomizing nozzles are in the tangential direction of the first conveying roller.

[0010] As a further preferred embodiment, the humidifying plate is a plastic plate, with one end of the humidifying plate near the atomizing nozzle located at the bottom of the atomizing nozzle, and both sides of the humidifying plate connected to the two inner walls of the support portion.

[0011] As a further preferred embodiment, one end of the seepage tube connected to the horizontal section is vertically downward, and an anchor bolt mounting hole is provided at the bottom of the printing machine body. The other end of the seepage tube extends towards the printing machine body and is inserted into the anchor bolt mounting hole, with one end of the seepage tube inserted into the anchor bolt mounting hole abutting against the inner wall of the anchor bolt mounting hole.

[0012] The advantages of this invention compared to the prior art are: This invention not only includes a humidifying element, but also a humidifying plate at the bottom of the first and second conveying rollers. A rectangular wick is placed within the horizontal section of the humidifying plate, with one side resting within the horizontal section and the other end passing through the second humidifying tube. When the humidified moisture is fed back to the paper surface, it falls into the horizontal section of the humidifying plate as it is conveyed downwards. After being intercepted by the raised end, the moisture is collected within the horizontal section. This moisture is absorbed by the wick, which is a highly absorbent linear material. Therefore, the wick absorbs the moisture collected in the horizontal section. According to the water absorption principle of the wick, the moisture will fill the entire wick. Since the top part of the wick is inserted into the second humidification tube, and the wall of the second humidification tube is in contact with the inner side of the printing paper, and the second humidification tube is inserted into the inner side of the printing paper, and has humidification holes that contact the inner surface of the printing paper, when the moisture is drawn into the second humidification tube, it will act on the inner surface of the paper through the humidification holes, causing the static electricity layer on the inner surface of the paper to disappear.

[0013] When the paper is conveyed to the printing press body by the first and second conveyor rollers, the outer surface of the paper is atomized and humidified by water vapor sprayed from the atomizing nozzle, and the static electricity on the outer surface is eliminated. After the mist is collected by the humidifying plate, it is reused on the inner surface of the paper through the wick cotton, so that the static electricity on the inner surface of the paper is also eliminated. This eliminates static electricity on both the inner and outer surfaces of the paper, which is superior to the existing technology. Attached Figure Description

[0014] Figure 1 A plan view of a humidification and static electricity removal system for a printing press provided for an embodiment of the present invention; Figure 2 A three-dimensional schematic diagram of a humidification and static electricity removal system for a printing press provided for an embodiment of the present invention; Figure 3 A humidification and static electricity removal system for a printing press provided in this embodiment of the invention comprises... Figure 2 A schematic diagram illustrating the removal of the humidifier panel; Figure 4 A humidification and static electricity removal system for a printing press provided in this embodiment of the invention comprises... Figure 3 Enlarged schematic diagram of part A; Figure 5 A humidification and static electricity removal system for a printing press provided in this embodiment of the invention comprises... Figure 3 This is a schematic diagram from another perspective. Figure 6 A humidification and static electricity removal system for a printing press provided in this embodiment of the invention comprises... Figure 3 A schematic diagram of the local structure from an upward-looking perspective; Figure 7A schematic diagram illustrating the relationship between the second humidifying tube and the wick cotton in a humidification and static elimination system of a printing press, provided for an embodiment of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the humidification and static elimination system of a printing press, provided as an embodiment of the present invention.

[0015] In the diagram: 1. Conveyor frame; 2. Support frame; 3. Conveying section; 4. Humidifying section; 5. Feeding section; 6. Static elimination section; 7. First conveyor roller; 8. Second conveyor roller; 9. First humidifying pipe; 10. Atomizing nozzle; 11. Material roller; 12. Printing machine body; 13. Humidifying plate; 14. Horizontal section; 15. Tilting end; 16. Lifting lug; 17. Cotton wick; 18. Second humidifying pipe; 19. Humidifying hole; 20. Reinforcing rod; 21. Locking buckle; 22. Cotton wick unit; 23. Anchor bolt mounting hole; 24. Drainage pipe. Detailed Implementation

[0016] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] In one implementation, such as Figures 1-8 As shown: This embodiment provides a humidification and static elimination system for a printing press, including a conveyor frame 1. The printing press body 12 is provided on the discharge side of the conveyor frame 1. The conveyor frame 1 includes a support part 2, a conveying part 3, a humidification part 4, a feeding part 5, and a static elimination part 6. The conveying section 3 includes a first conveying roller 7 and a second conveying roller 8 mounted on the support section 2. The first conveying roller 7 and the second conveying roller 8 are located on the feed side of the printing press body 2. The humidification section 4 includes a first humidification pipe 9 fixed on the support section 2 and a plurality of atomizing nozzles 10 disposed on the first humidification pipe 9. The atomizing nozzles 10 are located above the feed side of the first conveying roller 7 and the spray direction is towards the outside of the printing paper. The plurality of atomizing nozzles 10 are arranged in a row, and the mist outlet of the plurality of atomizing nozzles 10 is in the tangential direction of the first conveying roller 7. The feeding section 5 includes a material roller 11 that is connected to the support section 2. The material roller 11 is located above the second conveying roller 8. Printing paper is wound on the material roller 11 and is used to feed the printing paper to the first conveying roller 7. The output end of the printing paper is fed to the second conveying roller 8 via the first conveying roller 7 and enters the printing machine body 12 through the feed port. The static elimination part 6 includes a humidifying plate 13 fixed in the support part 2. One end of the humidifying plate 13 is inclined upward and close to the atomizing nozzle 10, and the other end of the humidifying plate 13 extends to the bottom side of the first conveying roller 7 and the second conveying roller 8. The static elimination part 6 also includes a horizontal section 14 formed in one piece on the humidifying plate 13, and a raised end 15 formed in one piece along the horizontal section 14; The static elimination part 6 also includes a seepage tube 24 connected to the raised end 15, and the other end of the seepage tube 24 is connected to the printing press body 12.

[0018] The atomizing nozzle 10 sprays mist towards the first conveyor roller 7 to moisturize the paper being conveyed towards the second conveyor roller 8. Based on existing methods for eliminating static electricity on the paper surface using misting, this invention can also eliminate static electricity as the paper is conveyed towards the printing press body 12. For example, Chinese Patent Application No. 202020723437.9 discloses a printing press with an anti-static device that uses a humidifier, which is consistent with the humidification principle of this invention. However, this invention not only includes a humidifying element but also a humidifying plate 13 at the bottom of the first and second conveyor rollers 7 and 8. A rectangular wick 17 is placed within the horizontal section 14 of the humidifying plate 13, with one side falling within the horizontal section 14 and the other side passing through the second humidifying tube 18. The humidified moisture is then fed back onto the paper surface. When the paper is conveyed downwards, the moisture falls into the horizontal section 14 of the humidifying plate 13 and is collected in the horizontal section 14 after being intercepted by the raised end 15. This moisture is absorbed by the wick 17. Since the wick 17 is a highly absorbent linear material, it absorbs the moisture collected in the horizontal section 14. According to the absorption principle of the wick 17, the moisture will fill the entire wick 17. Since the top part of the wick 17 is inserted into the second humidifying tube 18, and the tube wall of the second humidifying tube 18 is in contact with the inner side of the printing paper, and the second humidifying tube 18 is inserted into the inner side of the printing paper, and the second humidifying tube 18 has humidifying holes 19 that contact the inner surface of the printing paper, when the moisture is drawn into the second humidifying tube 18, it will act on the inner surface of the paper through the humidifying holes 19, causing the electrostatic layer on the inner surface of the paper to disappear.

[0019] In addition, some of the water vapor in the humidifying plate 13 will be sent through the seepage pipe 24 to the anchor bolt mounting hole 23 opened at the bottom of the printing press body 12. Since the anchor bolt mounting hole 23 is used to install anchor bolts, the printing press body 12 needs to be fixed to the ground with anchor bolts to reduce vibration during installation. Moreover, the anchor bolts are also equivalent to grounding bolts, which are used to release the static electricity generated by the printing press body 12 during operation to the ground. In the prior art, it is often found that the static electricity released by the printing press body 12 during operation causes discomfort to the operator. The traditional method is to manually pour some water into the anchor bolts to ground the equipment with the ground. Therefore, in order for water to seep onto the anchor bolts, the water used in this invention comes from the humidifying plate 13. When the seepage pipe 24 injects water into the anchor bolts, a large discharge volume is not required. It is only necessary for water to seep into the anchor bolts to ground them to the ground. Then, the anchor bolts release the static electricity on the printing press body 12 to the ground, which solves the problem. Since the water in this invention comes from the humidifying plate 13, and the water in the humidifying plate 13 comes from the atomizing nozzle 10 on the conveying side, this invention achieves a unified combination of static electricity elimination on the paper conveying side and static electricity elimination on the printing press body 12 on the printing side. Moreover, in order for the printing press body 12 to release static electricity, it is not necessary to manually pour water onto the anchor bolts as in the prior art, which is convenient for operation and saves labor.

[0020] In summary, when the paper is conveyed to the printing press body 12 by the first conveying roller 7 and the second conveying roller 8, the outer surface of the paper is atomized and humidified by the water vapor sprayed from the atomizing nozzle 10, and the static electricity on the outer surface is eliminated. The present invention collects this mist through the humidifying plate 13 and then reapplies it to the inner surface of the paper through the wick cotton 17, so that the static electricity on the inner surface of the paper is also eliminated, and the static electricity on both the inner and outer surfaces of the paper is eliminated, which is superior to the prior art.

[0021] To improve the humidification efficiency of the second humidification tube 18 on the inner surface of the paper, a number of humidification holes 19 are provided on the second humidification tube 18. Furthermore, to ensure uniform heating of the inner surface of the paper and better eliminate static electricity, the number of humidification holes 19 is as follows: Figure 3 , Figure 4 These humidification holes 19 are evenly spaced along the circumference of the second humidification tube 18.

[0022] like Figure 3 , Figure 4 , Figure 7 as well as Figure 8As shown, the second humidifying tube 18 is filled with a reinforcing rod 20. The portion of the wick 17 located inside the second humidifying tube 18 passes through the reinforcing rod 20. Both ends of the reinforcing rod 20 are mounted on two lifting lugs 16. When the inner surface of the paper is conveyed towards the printing press body 2, the inner surface of the paper rubs against the second humidifying tube 18 as it rotates. The second humidifying tube 18 rotates around the periphery of all the wicks 17, and simultaneously rotates all the humidifying holes 19. All the humidifying holes 19 throw moisture onto the inner surface of the paper, further improving the efficiency of static electricity elimination on the inner surface of the paper. Figure 7 , Figure 8 As shown, the wick 17 is made of multiple wick units 22 wound together. The two ends of each wick unit 22 are locked and fixed by latches 21. Since the wick 17 has latches 21 installed at both ends inside the second humidifying tube 18, and the two ends of the reinforcing rod 20 pass through the two latches 21, with the inner ends of the two latches 21 fastened to the two ends of the second humidifying tube 18, when the inner surface of the paper rubs against the second humidifying tube 18 and it rotates, the two ends of the second humidifying tube 18 will rotate around the two latches 21. A through hole is provided in the middle of each latch 21, and the two ends of the reinforcing rod 20 pass through the two latches 21 and are installed on the side lugs 16. All the wick units 22... Both ends are secured by two latches 21, and the inner part of all the wick cotton units 22 is located inside the second humidifying tube 18. The reinforcing rod 20 also passes through all the wick cotton units 22, providing support for the wick cotton units 22 and also supporting the two latches 21, thus fixing the installation position of the wick cotton 17. When the inner side of the paper is conveyed, the friction effect can only drive the second humidifying tube 18 to rotate. When the second humidifying tube 18 rotates, the inner wall of its tube cavity and the wick cotton 17 form a friction effect, which more effectively throws the moisture absorbed in the wick cotton 17 onto the inner side of the paper through the humidifying hole 19, thereby effectively eliminating static electricity on the inner side of the paper. Of course, in actual assembly, the two latches 21 are also fixed to the outside of the two latches 21 and the lifting lugs 16 on the same side with screws to prevent the latches 21 from rotating with the second humidifying tube 18, and also to prevent the two latches 21 from moving back and forth in the width direction, ensuring that the positions of the two latches 21 are fixed.

[0023] As a further preferred embodiment, one end of the seepage pipe 24 connected to the horizontal section 14 is vertically downward. An anchor bolt mounting hole 23 is provided at the bottom of the printing machine body 12. The other end of the seepage pipe 24 extends towards the printing machine body 12 and is inserted into the anchor bolt mounting hole 23. The end of the seepage pipe 24 inserted into the anchor bolt mounting hole 23 is attached to the inner wall of the anchor bolt mounting hole 23. When some of the water collected in the humidifying plate 13 seeps into the anchor bolt mounting hole 23 along the seepage pipe 24, it will flow along the hole wall of the anchor bolt mounting hole 23 to the ground, thus avoiding obstruction of the installation of the anchor bolts.

[0024] The end of the humidifying plate 13 near the atomizing nozzle 10 is located at the bottom of the atomizing nozzle 10. The two sides of the humidifying plate 13 are connected to the two inner walls of the support part 2. The mist sprayed from the atomizing nozzle 10 acts on the outside of the paper. After being reflected by the outside of the paper, it falls into the humidifying plate 13 as water droplets. Of course, since the water acts on the paper surface in the form of atomized spray, rather than being sprayed onto the paper surface in the form of a nozzle, and the industrial printing paper is relatively thick, the mist will not cause the paper surface to become excessively wet and break. When the paper is electrostatically treated and conveyed to the printing press body 12 through the feed port, a drying device will be set near the feed port of the printing press body 12, as in the prior art (application number 202020723437.9), to dry the paper surface or to meet the requirements of the printing press body 12 for printing.

[0025] The above directional designations do not represent the specific locations of each component in this embodiment. This embodiment is only for the convenience of describing the solution and using relative directional designations with reference to the figures. The actual locations of each component are based on their actual installation and use, as well as the directional descriptions habitually used by those skilled in the art. The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of this invention. It should be understood that the above descriptions are merely specific embodiments of this invention and are not intended to limit the scope of protection of this invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention for those skilled in the art.

Claims

1. A humidification and static electricity removal system for a printing press, characterized in that, The system includes a conveyor frame (1), with a printing machine body (12) on the discharge side of the conveyor frame (1). The conveyor frame (1) includes a support frame (2), a conveying section (3), a humidifying section (4), a feeding section (5), and an antistatic section (6). The conveying section (3) includes a first conveying roller (7) and a second conveying roller (8) mounted on the support frame (2). The first conveying roller (7) and the second conveying roller (8) are located on the feeding side of the printing machine body (12). The humidifying section (4) includes a first humidifying pipe (9) fixed on the support frame (2) and a plurality of atomizing nozzles (10) disposed on the first humidifying pipe (9). The atomizing nozzles (10) are located above the feeding side of the first conveying roller (7), and the spray direction is towards the outside of the printing paper. The feeding section (5) includes a feed roller (11) connected to the support section (2). The feed roller (11) is located above the second conveying roller (8). Printing paper is wound on the feed roller (11) and used to feed the printing paper to the first conveying roller (7). The output end of the printing paper is fed to the second conveying roller (8) via the first conveying roller (7) and enters the printing machine body (12) through the feed inlet. The static elimination section (6) includes a humidifying plate (13) fixed in the support section (2). One end of the humidifying plate (13) is inclined upward and close to the atomizing nozzle (10). The other end of the humidifying plate (13) extends to the bottom side of the first conveying roller (7) and the second conveying roller (8). The static elimination section (6) also includes a horizontal section (14) formed in one piece on the humidifying plate (13) and a raised end (15) formed in one piece along the horizontal section (14). The static eliminator (6) also includes a seepage tube (24) connected to the raised end (15), and the other end of the seepage tube (24) is connected to the printing machine body (12); the static eliminator (6) also includes a wick (17) set in the horizontal section (14), a lug (16) welded to both sides of the support section (2), and a second humidifying tube (18) installed on the two lugs (16). The wall of the second humidifying tube (18) contacts the inner side of the printing paper. The second humidifying tube (18) is inserted into the inner side of the printing paper, and the second humidifying tube (18) has a humidifying hole (19) that contacts the inner surface of the printing paper. The wick (17) is rectangular, with one side falling in the horizontal section (14) and the other side passing through the second humidifying tube (18).

2. The humidification and static electricity removal system for a printing press according to claim 1, characterized in that, There are several humidification holes (19), and the several humidification holes (19) are evenly distributed along the circumference of the second humidification tube (18).

3. The humidification and static electricity removal system for a printing press according to claim 2, characterized in that, The second humidifying tube (18) is filled with a reinforcing rod (20). The portion of the wick (17) inside the second humidifying tube (18) passes through the reinforcing rod (20). The two ends of the reinforcing rod (20) are mounted on the two lugs (16). The two ends of the wick (17) inside the second humidifying tube (18) are fitted with buckles (21). The two ends of the reinforcing rod (20) pass through the two buckles (21), and the inner ends of the two buckles (21) are fastened to the two ends of the second humidifying tube (18).

4. The humidification and static electricity removal system for a printing press according to claim 3, characterized in that, The wick (17) is made of multiple wick units (22) wound together, and both ends of all the wick units (22) are locked and fixed by the buckle (21).

5. The humidification and static electricity removal system for a printing press according to claim 4, characterized in that, A number of atomizing nozzles (10) are arranged in a row, and the mist outlet of the number of atomizing nozzles (10) is in the tangential direction of the first conveying roller (7).

6. The humidification and static electricity removal system for a printing press according to claim 5, characterized in that, The humidifying plate (13) is a plastic plate. One end of the humidifying plate (13) near the atomizing nozzle (10) is located at the bottom of the atomizing nozzle (10). The two sides of the humidifying plate (13) are connected to the two inner walls of the support part (2).

7. The humidification and static elimination system for a printing press according to claim 6, characterized in that, The end of the seepage tube (24) connected to the horizontal section (14) is vertically downward. The bottom of the printing machine body (12) is provided with an anchor bolt mounting hole (23). The other end of the seepage tube (24) extends towards the printing machine body (12) and is inserted into the anchor bolt mounting hole (23). The end of the seepage tube (24) inserted into the anchor bolt mounting hole (23) is attached to the inner wall of the anchor bolt mounting hole (23).

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