Four-color printing machine with powder spraying collection function

Abstract

The utility model discloses a four -color printing machine with spray powder collection function, specifically related to four -color printing machine technical field, including mounting panel, the mounting panel side wall is installed with spray material mechanism, the mounting panel bottom is firmly connected with a plurality of supporting plate, the supporting plate, the supporting plate middle part is rotatably connected with first rotation axis, the first rotation axis surface is installed with conveyer belt, the conveyer belt surface is equipped with a plurality of round holes, the supporting plate middle part is firmly connected with the bellow, the bellow top is equipped with a plurality of air outlet, the bellow bottom is installed with fan, through being equipped with round hole, bellow, fan etc. setting, can collect the spray powder produced when printing paperboard and can significantly reduce the dust pollution of printing workshop, reduce the risk of respiratory disease caused by the powder inhaled by operating personnel, improve the working environment, also can prevent the secondary pollution of printing product of powder floating and scattering, guarantee printing quality stability, reduce the scrap rate caused by smearing, color difference.

Description

Technical Field

[0001] This utility model relates to the field of four-color printing press technology, and more specifically, to a four-color printing press with a powder collection function. Background Technology

[0002] A four-color printing press is a professional printing device that uses CMYK four-color overprinting technology. It reproduces color images by superimposing and mixing four inks: cyan, magenta, yellow, and black. Its working principle is based on color separation technology. First, the colors of the original artwork are decomposed into four color channels, and then multiple units of the printing press are superimposed and printed sequentially. The rich colors are simulated by using changes in dot density and angle.

[0003] Existing publication number CN221090242U discloses a powder collection device for a four-color printing press. It includes a housing, a base plate at the bottom of the housing, a motor bracket at the rear of the base plate, a rotary motor mounted on the motor bracket, a transition cavity at the front end of the rotary motor, a cover plate at the other end of the transition cavity, a fixed flange at the bottom of the transition cavity, and an adapter flange at the other end of the transition cavity, connecting to an adapter pipe. A collection flange is connected to the other end of the adapter pipe and to a collector. A bearing seat one is installed in the middle of the transition cavity, and a rolling bearing one is mounted above the bearing seat one. A bearing seat two is installed in the middle of the cover plate, and a rolling bearing two is mounted above the bearing seat two. A rotating shaft is connected to the front end of the rotary motor, with one end of the rotating shaft passing through the rolling bearing one, and the other end passing through the rolling bearing one, with a fan blade connected in the middle. It is mounted on the upper part of the printing end of the printing press via the base plate. This method collects powder, ensuring the health of personnel. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] The powder spraying process of existing four-color printing presses generally has significant defects. Only a portion of the powder sprayed by the powder spraying device acts on the paper surface, while a large amount of the remaining powder diffuses into the workshop environment with the air, causing diffuse dust pollution.

[0005] Therefore, a four-color printing press with powder collection function is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a four-color printing press with powder collection function to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a four-color printing machine with powder collection function, comprising a mounting plate, wherein a powder spraying mechanism is mounted on the side wall of the mounting plate; multiple support plates are fixedly connected to the bottom of the mounting plate; a first rotating shaft is rotatably connected to the middle of the support plates; a conveyor belt is mounted on the surface of the first rotating shaft; multiple circular holes are opened on the surface of the conveyor belt; a wind box is fixedly connected to the middle of the support plate; multiple air outlets are opened on the top of the wind box; and a fan is mounted on the bottom of the wind box.

[0008] Preferably, multiple air supply pipes are fixedly connected to the top of the air box; the air supply pipes correspond to the positions of the air outlets; and the air supply pipes are connected to the middle of the air box.

[0009] Preferably, a plurality of funnels are fixedly connected to the top of the air supply duct; the funnels are connected to the middle of the air box.

[0010] Preferably, a drain pipe is fixedly connected to the side wall of the air box; the drain pipe is connected to the middle of the air box.

[0011] Preferably, the spraying mechanism includes an ink roller; an ink cartridge is mounted on the top of the ink roller.

[0012] Preferably, the mounting plate has a groove on its side wall; a slider is slidably connected in the middle of the groove; a second rotating shaft is rotatably connected in the middle of the slider; and the second rotating shaft is fixedly connected to the ink roller.

[0013] Preferably, a support column is installed on the side wall of the support plate; a rubber scraper is fixed to the top of the support column; and the end of the rubber scraper is located on the surface of the conveyor belt.

[0014] Preferably, a collection box is fixedly connected to one side of the rubber scraper; the collection box has a cavity in the middle.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. Compared with the existing technology, this four-color printing press with powder collection function can collect the powder generated during printing by setting up circular holes, air boxes, fans and other equipment. This can significantly reduce dust pollution in the printing workshop, reduce the risk of respiratory diseases caused by operators inhaling powder, improve the working environment, prevent secondary pollution of printed products by drifting powder, ensure stable printing quality, and reduce the scrap rate caused by smudging and color difference.

[0017] 2. Compared with the existing technology, this four-color printing machine with powder collection function has rubber scrapers and collection boxes at the end of the conveyor belt. When the conveyor belt rotates during operation, the rubber scrapers come into contact with the surface of the conveyor belt and can scrape off the dust and other debris on the surface of the conveyor belt, preventing powder from adhering to the precision parts of the printing machine, reducing equipment wear, extending service life, and reducing maintenance frequency and costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the bellows of this utility model.

[0020] Figure 3 This is a schematic diagram of the conveyor belt structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the rubber scraper of this utility model.

[0022] The attached figures are labeled as follows: 1. Mounting plate; 11. Spraying mechanism; 12. Support plate; 13. First rotating shaft; 14. Conveyor belt; 15. Circular hole; 16. Air box; 17. Air outlet; 18. Fan; 2. Air supply pipe; 3. Funnel; 4. Sewage pipe; 5. Ink roller; 51. Ink cartridge; 6. Slide groove; 61. Slider; 62. Second rotating shaft; 7. Support column; 71. Rubber scraper; 8. Collection box; 81. Cavity. 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 protection scope of the present utility model.

[0024] Example 1

[0025] As attached Figures 1 to 4 The four-color printing machine with powder collection function shown includes a mounting plate 1, a powder spraying mechanism 11 mounted on the side wall of the mounting plate 1; multiple support plates 12 fixedly connected to the bottom of the mounting plate 1; a first rotating shaft 13 rotatably connected to the middle of the support plate 12; a conveyor belt 14 mounted on the surface of the first rotating shaft 13; multiple circular holes 15 opened on the surface of the conveyor belt 14; a bellows 16 fixedly connected to the middle of the support plate 12; multiple air outlets 17 opened on the top of the bellows 16; and a fan 18 mounted on the bottom of the bellows 16.

[0026] When printing on the cardboard, the cardboard is first placed on top of the conveyor belt 14, and then the motor is started to drive the first rotating shaft 13 to rotate, which makes the conveyor belt 14 rotate. At this time, the cardboard is printed through the spraying mechanism 11. Then the blower 18 is started to suck air into the middle of the air box 16, and at the same time, the air outlet 17 sucks air into the conveyor belt 14. The powder generated during the printing process can be sucked into the middle of the air box 16 through the circular hole 15 and then discharged.

[0027] Example 2

[0028] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0029] In a preferred embodiment, a plurality of air supply pipes 2 are fixedly connected to the top of the air box 16; when the air box 16 draws air from the surface of the conveyor belt 14, a continuous negative pressure airflow can be formed in the air supply pipes 2, and the air supply pipes 2 are positioned corresponding to the air outlet 17; the air supply pipes 2 are connected to the middle of the air box 16; the inlet of the air supply pipe 2 is aligned with the powder spraying diffusion area, and the excess powder and powder-containing air suspended in the pipe are drawn into the pipe by the air pressure difference.

[0030] In a preferred embodiment, a plurality of funnels 3 are fixedly connected to the top of the air supply duct 2; the funnels 3 are connected to the middle of the air box 16; the funnels 3 expand the air intake coverage of the air supply duct 2 by their own funnel shape.

[0031] In a preferred embodiment, a drain pipe 4 is fixedly connected to the side wall of the air box 16; the drain pipe 4 is connected to the middle of the air box 16; the powder is collected in the middle of the air box 16 and then discharged through the middle of the drain pipe 4.

[0032] In a preferred embodiment, the inkjet mechanism 11 includes an ink roller 5; firstly, printing ink is added to the middle of the ink cartridge 51, and then the ink cartridge 51 is transferred to the middle of the ink roller 5; the ink cartridge 51 is installed on the top of the ink roller 5; through multiple printing units, each unit transfers the corresponding ink to the image area of ​​the printing plate through the ink roller 5, and then transfers it to the substrate through the blanket, using the superposition and mixing of dot angles and densities to present colors, thus completing the printing of the paperboard.

[0033] In a preferred embodiment, the mounting plate 1 has a groove 6 on its side wall; when the ink roller 5 prints on the paperboard, the slider 61 first slides in the middle of the groove 6; the slider 61 is slidably connected in the middle of the groove 6; the second rotating shaft 62 is rotatably connected in the middle of the slider 61; at this time, the ink roller 5 can be driven to move up and down; the second rotating shaft 62 is fixedly connected to the ink roller 5; the ink jet height of the ink roller 5 can be adjusted by this setting.

[0034] In a preferred embodiment, a support column 7 is installed on the side wall of the support plate 12; the support column 7 can support the rubber scraper 71; the rubber scraper 71 is fixedly connected to the top of the support column 7; when the conveyor belt 14 rotates, the rubber scraper 71 can contact the surface of the conveyor belt 14; the end of the rubber scraper 71 is located on the surface of the conveyor belt 14; as the conveyor belt 14 rotates, the rubber scraper 71 can scrape off the powder remaining on the surface of the conveyor belt 14.

[0035] In a preferred embodiment, a collection box 8 is fixedly attached to one side of the rubber scraper 71; then the powder falls into the middle of the cavity 81; the collection box 8 has a cavity 81 in the middle; collecting the powder through the collection box 8 can improve the working environment.

[0036] In this embodiment, the spraying mechanism 11, the fan 18, etc. are all commercially available equipment known to those skilled in the art. They can be customized or selected according to actual needs. Here we are just using them without making any structural or functional improvements, so we will not go into detail here.

[0037] The working process of this utility model is as follows: First, when printing on the cardboard, the cardboard is placed on top of the conveyor belt 14. Then, the motor is started to drive the first rotating shaft 13 to rotate, which makes the conveyor belt 14 rotate. As the conveyor belt 14 rotates, the rubber scraper 71 can scrape off the residual powder on the surface of the conveyor belt 14. Then, the powder falls into the middle of the cavity 81. At this time, the printing ink is added to the middle of the ink cartridge 51. Then, the ink cartridge 51 is transferred to the middle of the ink roller 5. Then, the slider 61 slides in the middle of the groove 6, which can drive the ink roller 5 to move up and down to adjust the height of the ink roller 5. Then, through multiple printing units, each unit transfers the corresponding ink to the image part of the printing plate through the ink roller 5, and then transfers it to the substrate through the rubber blanket. On the printing material, colors are presented by the superposition and mixing of halftone dot angles and densities to complete the printing on the cardboard. Then, the blower 18 is started to draw air into the middle of the blower box 16, and at the same time, the air outlet 17 draws air into the conveyor belt 14. The powder generated during the printing process can be drawn into the middle of the blower box 16 through the circular hole 15. When the blower box 16 draws air into the surface of the conveyor belt 14, a continuous negative pressure airflow can be formed through the air supply pipe 2. The inlet of the air supply pipe 2 is aligned with the powder diffusion area. The air pressure difference is used to draw the suspended excess powder and powder-containing air into the pipe. The funnel 3 expands the air intake coverage area of ​​the air supply pipe 2 by its own funnel shape, and then discharges it from the drain pipe 4. The above is the working principle of this four-color printing machine with powder collection function.

Claims

1. A four-color printing press with powder collection function, comprising a mounting plate (1), characterized in that: The mounting plate (1) has a spraying mechanism (11) installed on its side wall; a plurality of support plates (12) are fixedly connected to the bottom of the mounting plate (1); a first rotating shaft (13) is rotatably connected to the middle of the support plate (12); a conveyor belt (14) is installed on the surface of the first rotating shaft (13); a plurality of circular holes (15) are opened on the surface of the conveyor belt (14); a wind box (16) is fixedly connected to the middle of the support plate (12); a plurality of air outlets (17) are opened on the top of the wind box (16); a fan (18) is installed at the bottom of the wind box (16).

2. A four-color printing press with powder collection function according to claim 1, characterized in that: Multiple air supply pipes (2) are fixedly connected to the top of the air box (16); the air supply pipes (2) are positioned corresponding to the air outlet (17); the air supply pipes (2) are connected to the middle of the air box (16).

3. A four-color printing press with powder collection function according to claim 2, characterized in that: The top of the air supply pipe (2) is fixed with multiple funnels (3); the funnels (3) are connected to the middle of the air box (16).

4. A four-color printing press with powder collection function according to claim 3, characterized in that: A drain pipe (4) is fixedly connected to the side wall of the air box (16); the drain pipe (4) is connected to the middle of the air box (16).

5. A four-color printing press with powder collection function according to claim 1, characterized in that: The spraying mechanism (11) includes an ink roller (5); an ink cartridge (51) is mounted on the top of the ink roller (5).

6. A four-color printing press with powder collection function according to claim 1, characterized in that: The mounting plate (1) has a sliding groove (6) on its side wall; a slider (61) is slidably connected in the middle of the sliding groove (6); a second rotating shaft (62) is rotatably connected in the middle of the slider (61); the second rotating shaft (62) is fixedly connected to the ink roller (5).

7. A four-color printing press with powder collection function according to claim 1, characterized in that: The support plate (12) has a support column (7) installed on its side wall; a rubber scraper (71) is fixed to the top of the support column (7); the end of the rubber scraper (71) is located on the surface of the conveyor belt (14).

8. A four-color printing press with powder collection function according to claim 7, characterized in that: A collection box (8) is fixedly connected to one side of the rubber scraper (71); a cavity (81) is opened in the middle of the collection box (8).

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