Paper pressing and dust preventing mechanism for printing machine
By setting up a squeezing conveyor roller and conductive bar in the printing machine, the motor uses the motor to drive the gear meshing to form a closed loop, remove the static charge on the surface of the printing paper, and scrape the surface debris by scraping the roller. The problem of dust improves printing efficiency.
Patent Information
- Application Number
- CN202421286628.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-06
AI Technical Summary
During the working process of the printing press, the surface of the printing material is prone to accumulate static charge, adsorbing dust and other debris, affecting printing efficiency.
Design a printing paper and dust -proof mechanism for printing machines. By setting up extruded conveyor rollers and conductivity bars in the printing machine, the motor uses the motor to drive the gear mesh to form a closed loop, remove the static charge on the surface of the printing paper, and scrape through the scraper roller. Except surface miscellaneous objects.
Effectively remove the static charge on the surface of the printing paper, reduce the absorption of dust, improve the printing efficiency, and avoid the lack of leakage and the impact of miscellaneous objects.
Smart Images
Figure CN222407653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printing machines, and more specifically to a paper pressing and dust prevention mechanism for a printing machine. Background Art
[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate mounting, inking, embossing, and paper feeding (including folding). Its working principle is: first, the text and image to be printed are made into a printing plate, which is then mounted on a printing press. Then, ink is applied to the places on the printing plate where the text and image are, either manually or by a printing press, and then directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wood boards, glass, and ceramics), thereby replicating a printed product identical to the printing plate.
[0003] During the production or stacking process of roll paper or roll plastic film, a lot of static electricity will be accumulated due to friction. Although this static electricity is not fatal to people, it will adsorb dust, packaging materials, fibers on clothes, hair, microorganisms, residual ink particles, etc. in the surrounding environment to the surface of the printing material, causing printing omissions on the surface of the printing material, etc., causing difficulties in the production of printing, laminating, glazing and other processes. In view of this, we propose a paper pressing and dust prevention mechanism for a printing machine. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a paper pressing and dust prevention mechanism for a printing press to solve the current technical problem that static charges accumulate on the outer surface of the substrate and absorb dust and other debris, affecting the printing efficiency of the printing press.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a paper pressing and dust prevention mechanism for a printing press, comprising a printing press main body, a support plate connected below the feed port of the printing press main body, a support frame fixedly connected to the upper surface of the support plate, a receiving roller arranged on one side of the support frame, a motor arranged on the front surface of the support frame, two extrusion conveying rollers symmetrically arranged up and down inside the support frame, conductive strips evenly arranged on the outer surfaces of the extrusion conveying rollers, an output shaft of the motor is connected to a main gear through a main shaft, a driven gear is meshedly connected to the outer surface of the main gear, a driven shaft is fixedly connected inside the driven gear, one end of the main gear is movably connected to a small diameter pulley through a belt, the pulley is fixedly connected to a scraper roller through a transmission rod, a power block is arranged inside the support frame, one end of the conductive strip is connected to an electrode at one end of the power block, and the other end of the conductive strip passes through the main gear and is fixedly connected to a tooth block on the outer surface of the main gear.
[0006] The utility model drives the main shaft, the squeezing conveying roller and the main gear to rotate counterclockwise through the output shaft of the motor, and further drives the other squeezing conveying roller to rotate in the opposite direction through the driven gear meshing with the motor, and at the same time, the main gear drives the scraping roller to rotate in the same direction through the belt, and the two gears are meshed with each other in the meshing of the main gear and the driven gear with a meshing degree greater than one, and a closed loop is formed in the meshing of the driven gear and the gear blocks on the outer surface of the main gear through the power block and the conductive strips on the outer surfaces of the two squeezing conveying rollers. When the two squeezing conveying rollers convey the printing paper, the conductive strips on the outer surfaces of the two mutually staggered squeezing conveying rollers are kept in contact with the printing paper, and the electric charge on the outer surface of the printing paper flows along the internal current direction of the conductive strip during the contact, so that the static charge on the outer surface of the printing paper is removed, and at the same time, the adsorption force of the printing paper on the dust and other debris on its surface is reduced, and then, in the rapid rotation of the scraping roller controlled by the small diameter pulley, the debris on the upper surface of the printing paper is scraped off through the scraping groove, so as to avoid the influence of the debris on the surface of the printing paper on the printing quality and efficiency.
[0007] Preferably, the extrusion conveying roller, the driven gear, the driven shaft, the main gear and the main shaft are all made of insulating materials.
[0008] Preferably, a plurality of spiral scraping grooves are evenly formed on the outer surface of the scraping roller.
[0009] Preferably, outer surfaces of the two extrusion conveying rollers are close to each other, and the conductive strips on the outer surfaces of the corresponding extrusion conveying rollers are staggered.
[0010] Preferably, the meshing degree between the driven gear and the main gear is greater than 1, and the two conductive bars connected to the gear blocks meshing with the outer surfaces of the driven gear and the main gear respectively form a closed circuit with the power supply block.
[0011] Preferably, the outer surface of the conductive strip is an arc having the same diameter as that of the extrusion conveying roller.
[0012] Preferably, the main gear rotates counterclockwise, and the scraper roller is located on one side of the feed inlet on the outer surface of the printing machine body.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model uses a main gear and a driven gear with a meshing degree greater than one to keep a conductive strip in contact with the printing paper. In the meshing of the driven gear and the tooth blocks on the outer surface of the main gear, a closed loop is formed with the power block. In the contact, the charge on the outer surface of the printing paper flows along the direction of the current inside the conductive strip, thereby removing the static charge on the outer surface of the printing paper and reducing the adsorption force of the printing paper on the dust and other debris on its surface. Then, during the rapid rotation of the scraper roller controlled by a small diameter pulley, the scraper groove scrapes away the debris on the upper surface of the printing paper, thereby avoiding the influence of the debris on the surface of the printing paper on the printing quality and efficiency.
[0015] 2. The utility model also designs a scraping groove structure, so that when the debris on the outer surface of the printing paper after the static charge is removed is scraped off, the debris is scattered toward the edge of the printing paper, further avoiding the problem of the debris falling onto the printing paper again after horizontal scraping. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the support frame structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the tooth block structure of the utility model;
[0019] Figure 4 It is a schematic diagram of the conductive strip structure of the utility model;
[0020] Figure 5 It is a schematic diagram of the scraping groove structure of the utility model.
[0021] Description of the numbers in the figure:
[0022] 1. Printing machine body; 2. Support plate; 3. Motor; 4. Receiver roller; 5. Support frame; 6. Driven gear; 601. Driven shaft; 7. Main gear; 701. Main shaft; 702. Belt; 8. Scraper roller; 801. Pulley; 802. Transmission rod; 803. Scraper groove; 9. Power block; 10. Extrusion conveyor roller; 11. Tooth block; 12. Conductive strip. DETAILED DESCRIPTION
[0023] like Figures 1 to 5 As shown, the utility model relates to a paper pressing and dust prevention mechanism for a printing machine, comprising a printing machine body 1, a support plate 2 is connected below the feed port of the printing machine body 1, a support frame 5 is fixedly connected to the upper surface of the support plate 2, a receiving roller 4 is arranged on one side of the support frame 5, a motor 3 is arranged on the front surface of the support frame 5, two squeezing and conveying rollers 10 are symmetrically arranged inside the support frame 5, and conductive strips 12 are evenly arranged on the outer surface of the squeezing and conveying rollers 10, the output shaft of the motor 3 is connected to the main gear 7 through the main shaft 701, the outer surface of the main gear 7 is meshed and connected with a driven gear 6, the inner part of the driven gear 6 is fixedly connected with a driven shaft 601, one end of the main gear 7 is movably connected to a small diameter pulley 801 through a belt 702, the pulley 801 is fixedly connected to a scraper roller 8 through a transmission rod 802, a power supply block 9 is arranged inside the support frame 5, one end of the conductive strip 12 is connected to an electrode at one end of the power supply block 9, and the other end of the conductive strip 12 passes through the main gear 7 and is fixedly connected to a tooth block 11 on the outer surface of the main gear 7.
[0024] In the embodiment of the utility model, the materials of the extrusion conveying roller 10, the driven gear 6, the driven shaft 601, the main gear 7, and the main shaft 701 are all insulating materials to avoid affecting the closed circuit formed by the conductive strip 12, the power block 9 and the two tooth blocks 11 that mesh with each other on the outer surfaces of the main gear 7 and the driven gear 6; the outer surfaces of the two extrusion conveying rollers 10 are close to each other, and the conductive strips 12 on the outer surfaces of the corresponding extrusion conveying rollers 10 are staggered. The extrusion conveying rollers 10 that are close to each other are used for extrusion conveying of the printing paper. At the same time, under the action of the internal current of the staggered conductive strips 12, the static charge on the printing paper is kept removed; the meshing degree between the driven gear 6 and the main gear 7 is greater than 1, and the two conductive strips 12 connected to the tooth blocks 11 that mesh with each other on the outer surfaces of the driven gear 6 and the main gear 7 respectively form a closed Circuit, the driven gear 6 and the main gear 7 with a meshing degree greater than that of the printing machine body 1 always maintain different tooth blocks 11 in a meshing contact state during rotation, maintaining the connection between the closed circuit formed between it and the conductive strip 12 and the power block 9; the outer surface of the conductive strip 12 is an arc with the same diameter as the extrusion conveying roller 10; so that the extrusion conveying roller 10 can avoid damage to the printing paper due to the uneven outer surface of the extrusion conveying roller 10 when in contact with the printing paper; the main gear 7 rotates counterclockwise, and the scraper roller 8 is located on the side of the feed port on the outer surface of the printing machine body 1; the counterclockwise rotating main gear 7 can control the two extrusion conveying rollers 10 to control the printing paper to move toward the inside of the printing machine body 1 under the simultaneous control of the oppositely rotating driven gear 6, and remove the debris on the outer surface of the printing paper after the charge is removed by the scraper roller 8.
[0025] In the embodiment of the utility model, a plurality of spiral scraping grooves 803 are evenly formed on the outer surface of the scraping roller 8; the spiral scraping grooves 803 transport and scatter the debris to both sides of the printing paper, thereby preventing the debris from falling onto the printing paper again after being scraped off horizontally.
[0026] Working principle: This embodiment provides a paper pressing and dust prevention mechanism for a printing machine. Before use, the printing paper passes through the outer surface of the receiving roller 4 and passes between the two squeezing and conveying rollers 10 and under the scraper roller 8, and then passes through the feed port to connect to the inside of the printing machine body 1. When in use, the main shaft 701, the squeezing and conveying roller 10 and the main gear 7 are driven counterclockwise by the output shaft of the motor 3, and the other squeezing and conveying roller 10 is further driven to rotate in the opposite direction through the driven gear 6 meshing with it. At the same time, the main gear 7 drives the scraper roller 8 to rotate in the same direction through the belt 702. When the meshing degree of the main gear 7 and the driven gear 6 is greater than one, the tooth blocks 11 on the corresponding outer surfaces of the main gear 7 and the driven gear 6 are kept in meshing state, and the power block 9 and the two squeezing and conveying rollers 10 are used. The conductive strip 12 on the outer surface forms a closed loop in the meshing of the tooth block 11 on the outer surface of the driven gear 6 and the main gear 7. When the two extrusion conveying rollers 10 convey the printing paper, the conductive strips 12 on the outer surfaces of the two interlaced extrusion conveying rollers 10 are kept in contact with the printing paper. During the contact, the charge on the outer surface of the printing paper flows along the direction of the current inside the conductive strip 12, thereby removing the static charge on the outer surface of the printing paper and reducing the adsorption force of the printing paper on dust and other debris on its surface. Then, during the rapid rotation of the scraper roller 8 controlled by the small diameter pulley 801, the spiral scraping groove 803 is used to scrape off the debris on the upper surface of the printing paper and transport the debris to the edge to prevent it from falling onto the surface of the printing paper again after scraping, thereby avoiding the influence of debris on the surface of the printing paper on printing quality and efficiency.
[0027] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A paper pressing and dust prevention mechanism for a printing press, comprising a printing press body (1), characterized in that: A support plate (2) is connected below the feed port of the printing machine body (1); a support frame (5) is fixedly connected to the upper surface of the support plate (2); a receiving roller (4) is arranged on one side of the support frame (5); a motor (3) is arranged on the front surface of the support frame (5); two squeezing and conveying rollers (10) are symmetrically arranged inside the support frame (5); conductive strips (12) are evenly arranged on the outer surface of the squeezing and conveying rollers (10); an output shaft of the motor (3) is connected to a main gear (7) through a main shaft (701); and the outer surface of the main gear (7) is meshed with a toothed wheel (12). The support frame (5) is connected to a driven gear (6), the interior of the driven gear (6) is fixedly connected to a driven shaft (601), one end of the main gear (7) is movably connected to a small-diameter pulley (801) via a belt (702), the pulley (801) is fixedly connected to a scraper roller (8) via a transmission rod (802), a power block (9) is arranged inside the support frame (5), one end of the conductive strip (12) is connected to an electrode at one end of the power block (9), and the other end of the conductive strip (12) passes through the main gear (7) and is fixedly connected to a tooth block (11) on the outer surface of the main gear (7).
2. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: The materials of the extrusion conveying roller (10), the driven gear (6), the driven shaft (601), the main gear (7), and the main shaft (701) are all insulating materials.
3. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: The outer surface of the scraper roller (8) is evenly provided with a plurality of spiral scraping grooves (803).
4. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: The outer surfaces of the two extrusion conveying rollers (10) are close to each other, and the conductive strips (12) on the outer surfaces of the corresponding extrusion conveying rollers (10) are arranged in a staggered manner.
5. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: The meshing degree between the driven gear (6) and the main gear (7) is greater than 1, and the conductive strip (12) connected to the two gear blocks (11) meshing with the outer surfaces of the driven gear (6) and the main gear (7) respectively forms a closed circuit with the power supply block (9).
6. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: The outer surface of the conductive strip (12) is an arc having the same diameter as that of the extrusion conveying roller (10).
7. The paper pressing and dust preventing mechanism for a printing press according to claim 1, characterized in that: The main gear (7) rotates counterclockwise, and the scraper roller (8) is located on one side of the feed inlet on the outer surface of the printing machine body (1).