Printing sprayed powder recovery device of printing machine

Abstract

The utility model relates to the technical field of printing machine sprayed powder recovery, and discloses a printing sprayed powder recovery device of a printing machine, which comprises a box body and a support frame, a conveying mechanism is arranged on the support frame, and a powder spraying mechanism and a recovery mechanism are arranged in the box body; and the recycling mechanism comprises a recycling hopper communicated with the bottom of the box body. A suction fan is started to enable a dust collection head to absorb printing dust floating in a box body through a dust collection pipe, the printing dust is conveyed into a purification box through a dust outlet pipe, at the moment, a pump machine pumps water in a water storage tank into an atomization spray head, the atomization spray head sprays water mist, and when the water mist makes contact with dust air, dust particles in the air can be rapidly adsorbed; and the air subjected to dust falling is discharged to the outside after being adsorbed and filtered by the first filter screen, the activated carbon layer and the second filter screen, sunk powder slag is discharged through the blow-off pipe under the guide of the flow guide seat, and the situation that the working environment is polluted due to the fact that dust drifts away is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of printing press powder recovery technology, specifically a printing press powder recovery device. Background Technology

[0002] Modern printing presses generally consist of plate mounting, inking, printing, and paper feeding mechanisms. When performing multi-color printing, the ink dots on the substrate accumulate thickly and cannot dry immediately, making the printed matter prone to smudging. In current printing technology, to reduce smudging, operators use the printing press's powder spraying device to spray a layer of printing powder onto the printing surface of the paper before it is wound. This makes the surface of the printed matter smooth, reduces the adhesion of the printed matter, and accelerates the drying of the ink on the surface of the printed matter. However, since the powder sprayed from the powder spraying tube cannot adhere 100% to the surface of the substrate, some of the printing powder will drift in the printing press or seep out from the gaps in the printing press, which not only pollutes the environment but also wastes resources. Therefore, it is necessary to recycle the powder dust sprayed from the powder spraying machine.

[0003] Chinese patent provides a printing press powder recovery device, publication number CN221562570U, which includes a base plate, a housing fixedly connected to the base plate, a powder spraying mechanism, and a recovery mechanism; the powder spraying mechanism includes an air valve connected to a first powder tank, one end of a powder inlet pipe connected to the bottom of the first powder tank, the other end of the powder inlet pipe connected to a powder spraying pipe, and a powder spraying nozzle provided at the bottom of the powder spraying pipe; the recovery mechanism includes a slide rail rotatably connected to a first lead screw, the first lead screw threadedly connected to a slider, the slider fixedly connected to a support frame, and a main scraper fixedly connected to the bottom of the support frame.

[0004] This device uses a main scraper and a secondary scraper to scrape off the powder that has not been adsorbed onto the paper into the powder collection trough for recycling. However, the dust floating inside the box is not effectively treated and can only be left to stand or fall freely into the powder collection trough. This causes some dust to overflow into the outside through the box's inlets or gaps, which not only pollutes the environment but may also cause people to inhale it and harm their health. Therefore, there is a need to provide a printing powder recycling device for printing presses. Utility Model Content

[0005] The purpose of this invention is to provide a printing powder recovery device for a printing press to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a printing powder recycling device for a printing press, comprising a housing and a support frame, wherein a conveying mechanism is provided on the support frame, and a powder spraying mechanism and a recycling mechanism are provided inside the housing; the recycling mechanism includes a recycling hopper connected to the bottom of the housing, a screen slidably disposed inside the recycling hopper, sliders fixedly disposed at both ends of the screen, a groove slidably connected to the sliders in the recycling hopper, a slide rod slidably connected to the sliders fixedly disposed in the groove, a spring fixedly disposed between the bottom of the sliders and the groove on the slide rod, a rotating rod rotatably disposed inside the recycling hopper, a cam fixedly disposed on the rotating rod, and a third motor fixedly disposed at one end of the recycling hopper. The rotating rod is rotatably connected to the recycling hopper and is driven by a second gear transmission assembly. A recycling box is connected to the bottom of the recycling hopper, and a collection box is slidably arranged inside the recycling box. A suction fan and a purification box are fixedly installed on the box. The air inlet of the suction fan is connected to a dust suction pipe, which passes through the box and is connected to a dust suction head. The air outlet of the suction fan is connected to the purification box via a dust outlet pipe. A water storage tank and a pump are fixedly installed on the purification box. The water storage tank is connected to the water inlet pipe of the pump, and the water outlet pipe of the pump passes through the purification box and is connected to an atomizing nozzle. A first filter, an activated carbon layer, and a second filter are sequentially fixedly installed at one end of the purification box near the air outlet.

[0007] Preferably, the conveying mechanism includes a first roller shaft and a second roller shaft rotatably mounted on a support frame. One end of each of the first roller shaft and the second roller shaft rotatably passes through the support frame and is connected to a belt drive assembly. A first motor is fixedly mounted on the front side of the support frame. The output shaft of the first motor rotatably passes through the support frame and is fixedly connected to the first roller shaft. An electric conveying roller is rotatably mounted inside the housing.

[0008] Preferably, the powder spraying mechanism includes a powder storage box and an air valve fixedly mounted on the box body, the air pipe of the air valve is connected to the powder storage box, and a sealing cap is threadedly connected to the feed pipe of the powder storage box.

[0009] Preferably, a hanging rod is fixedly installed inside the box, a powder spraying pipe is fixedly installed at the bottom of the hanging rod, a plurality of powder spraying nozzles are connected to the bottom of the powder spraying pipe, and a powder inlet pipe is connected between the powder storage box and the powder spraying pipe.

[0010] Preferably, a handle is fixedly installed on the front side of the collection box, a water injection pipe is connected to the water storage tank, a flow guide seat is fixedly installed inside the purification box, and a sewage discharge pipe is connected to the rear side of the purification box.

[0011] Preferably, a cylinder is fixedly installed inside the housing, a fixed frame is fixedly installed at the bottom of the output rod of the cylinder, a main scraper is fixedly installed at the bottom of the fixed frame, a reciprocating lead screw is rotatably installed inside the fixed frame, a second motor is fixedly installed on the fixed frame, and the output shaft of the second motor and the reciprocating lead screw are rotatably connected through the fixed frame and driven by a first gear transmission assembly.

[0012] Preferably, a limit rod is fixedly installed inside the fixed frame, and a moving block that is slidably connected to the limit rod is threaded onto the reciprocating screw. A secondary scraper is fixedly installed on the moving block, and the secondary scraper is slidably connected to the main scraper.

[0013] Preferably, the bottom of the support frame is fixedly provided with a support leg, and the bottom of the support leg is fixedly provided with a caster wheel.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) The printing powder recovery device of this printing press, by starting the suction fan, enables the suction head to absorb the printing dust floating in the box through the suction pipe, and transport it to the purification box through the dust outlet pipe. At this time, the pump pumps the water in the water storage tank into the atomizing nozzle, so that the atomizing nozzle sprays water mist. When the water mist comes into contact with the dusty air, it can quickly adsorb the dust particles in the air, achieving the purpose of dust reduction. The dust-reduced air is then discharged to the outside after being adsorbed and filtered by the first filter screen, the activated carbon layer and the second filter screen. The settled powder residue is discharged through the sewage pipe under the guidance of the guide seat, effectively preventing dust from scattering and polluting the working environment.

[0016] 2) The printing powder recovery device of this printing press prevents paper from falling through the screen. At the same time, the third motor drives the rotating rod to rotate through the second gear transmission assembly, so that the cam can intermittently impact the screen. The arrangement of the slider, chute, slide rod and spring enables the screen to reciprocate up and down, which makes it easier for the powder to fall and reduces residue. Excess powder falls into the collection box in the recovery bin under the guidance of the recovery hopper, thus realizing the recovery of powder. When a certain amount of powder is stored in the collection box, the collection box can be pulled out of the recovery bin by pulling the handle to process the recovered powder. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a printing powder recovery device for a printing machine according to an embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the support frame in an embodiment of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the box body in an embodiment of the present utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the fixing frame in an embodiment of the present utility model;

[0021] Figure 5 This is a cross-sectional view of the purification box in an embodiment of the present invention.

[0022] In the diagram: 1. Box body; 2. Support frame; 3. Conveying mechanism; 301. First roller shaft; 302. Second roller shaft; 303. First motor; 304. Belt drive assembly; 305. Electric conveyor roller; 4. Powder spraying mechanism; 401. Powder storage box; 402. Air valve; 403. Sealing cover; 404. Powder spraying pipe; 405. Powder spraying nozzle; 406. Powder inlet pipe; 407. Hanging rod; 5. Recovery mechanism; 501. Cylinder; 502. Fixing frame; 503. Main scraper; 504. Reciprocating screw; 505. Limiting rod; 506. Second motor; 507. First gear transmission assembly; 508. Moving block; 509. Secondary scraper; 510. Return 511. Feed hopper; 512. Screen; 513. Sliding block; 514. Slide rail; 515. Spring; 516. Rotating rod; 517. Cam; 518. Third motor; 519. Second gear transmission assembly; 520. Recycling bin; 521. Collection box; 522. Pull handle; 523. Fan; 524. Suction pipe; 525. Suction head; 526. Purification box; 527. Dust outlet pipe; 528. Water storage tank; 529. Water injection pipe; 530. Pump; 531. Atomizing nozzle; 532. Flow guide seat; 533. Sewage pipe; 534. First filter screen; 535. Second filter screen; 536. Activated carbon layer; 6. Support leg; 7. Casters. 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] Combination Figures 1-5 A printing powder recycling device for a printing press includes a housing 1 and a support frame 2. The bottom of the support frame 2 is fixedly provided with a support leg 6, and the bottom of the support leg 6 is fixedly provided with a moving wheel 7. A conveying mechanism 3 is provided on the support frame 2, and a powder spraying mechanism 4 and a recycling mechanism 5 are provided inside the housing 1.

[0026] See Figure 2 and Figure 3Furthermore, the conveying mechanism 3 includes a first roller shaft 301 and a second roller shaft 302 rotatably mounted on the support frame 2. One end of each roller shaft 301 and roller shaft 302 rotatably passes through the support frame 2 and is connected to a belt drive assembly 304. A first motor 303 is fixedly mounted on the front side of the support frame 2. The output shaft of the first motor 303 rotatably passes through the support frame 2 and is fixedly connected to the first roller shaft 301. An electric conveying roller 305 is rotatably mounted inside the housing 1.

[0027] See Figure 3 Furthermore, the powder spraying mechanism 4 includes a powder storage box 401 and an air valve 402 fixedly installed on the box 1. The air pipe of the air valve 402 is connected to the powder storage box 401. A sealing cap 403 is threadedly connected to the feed pipe of the powder storage box 401. A hanging rod 407 is fixedly installed inside the box 1. A powder spraying pipe 404 is fixedly installed at the bottom of the hanging rod 407. Multiple powder spraying nozzles 405 are connected to the bottom of the powder spraying pipe 404. A powder inlet pipe 406 is connected between the powder storage box 401 and the powder spraying pipe 404.

[0028] See Figure 3 Furthermore, the recycling mechanism 5 includes a recycling hopper 510 connected to the bottom of the housing 1. A screen 511 is slidably disposed inside the recycling hopper 510. Slider 512 is fixedly disposed at both ends of the screen 511. A groove 513 is opened inside the recycling hopper 510 and slidably connected to the slider 512. A slide rod 514 is fixedly disposed inside the groove 513 and slidably connected to the slider 512. A spring 515 is sleeved on the slide rod 514 and fixedly disposed between the bottom of the slider 512 and the groove 513. A rotating rod 516 is rotatably disposed inside the recycling hopper 510. A cam 517 is fixedly sleeved on the rotating rod 516. A third motor 518 is fixedly disposed at one end of the recycling hopper 510. A second gear transmission assembly 519 is rotatably disposed between the rotating rod 516, the recycling hopper 510, the recycling box 520, and a collection box 521 is slidably disposed inside the recycling box 520.

[0029] Specifically, the screen 511 prevents paper from falling out. Simultaneously, the third motor 518 drives the rotating rod 516 to rotate via the second gear transmission assembly 519, causing the cam 517 to intermittently impact the screen 511. The slider 512, slide groove 513, slide rod 514, and spring 515 enable the screen 511 to reciprocate up and down, making it easier for powder to fall and reducing residue. Excess powder falls into the collection box 521 within the recycling bin 520 under the guidance of the recycling hopper 510, thus achieving powder recycling. Once a certain amount of powder is stored in the collection box 521, it can be pulled out of the recycling bin 520 using the pull handle 522 for processing.

[0030] See Figure 3 and Figure 5 Furthermore, it is found that a suction fan 523 and a purification box 526 are fixedly installed on the housing 1. A dust suction pipe 524 is connected to the air inlet of the suction fan 523. The dust suction pipe 524 passes through the housing 1 and is connected to a dust suction head 525. A dust outlet pipe 527 is connected between the air outlet of the suction fan 523 and the purification box 526. A water storage tank 528 and a pump 530 are fixedly installed on the purification box 526. The water storage tank 528 is connected to the water inlet pipe of the pump 530. The water outlet pipe of 530 passes through the purification box 526 and is connected to the atomizing nozzle 531. Inside the purification box 526, at one end of the air outlet, a first filter screen 534, an activated carbon layer 536, and a second filter screen 535 are fixedly installed in sequence. A handle 522 is fixedly installed on the front side of the collection box 521. A water injection pipe 529 is connected to the water storage tank 528. A flow guide seat 532 is fixedly installed inside the purification box 526. A sewage discharge pipe 533 is connected to the rear side of the purification box 526.

[0031] Specifically, by activating the suction fan 523, the suction head 525 can absorb the printing dust floating inside the housing 1 through the suction pipe 524, and transport it to the purification box 526 through the dust outlet pipe 527. At this time, the pump 530 pumps the water in the water storage tank 528 into the atomizing nozzle 531, causing the atomizing nozzle 531 to spray water mist. When the water mist comes into contact with the dusty air, it can quickly adsorb the dust particles in the air, achieving the purpose of dust reduction. The dust-reduced air is then filtered through the first filter screen 534, the activated carbon layer 536, and the second filter screen 535 before being discharged to the outside. The settled powder residue is discharged through the drain pipe 533 under the guidance of the guide seat 532, effectively preventing dust from scattering and polluting the working environment.

[0032] See Figure 4 Furthermore, a cylinder 501 is fixedly installed inside the housing 1. A fixed frame 502 is fixedly installed at the bottom of the output rod of the cylinder 501. A main scraper 503 is fixedly installed at the bottom of the fixed frame 502. A reciprocating screw 504 is rotatably installed inside the fixed frame 502. A second motor 506 is fixedly installed on the fixed frame 502. The output shaft of the second motor 506 and the reciprocating screw 504 both rotatably pass through the fixed frame 502 and are connected to a first gear transmission assembly 507. A limit rod 505 is fixedly installed inside the fixed frame 502. A moving block 508 is threadedly connected to the reciprocating screw 504 and slidably connected to the limit rod 505. A secondary scraper 509 is fixedly installed on the moving block 508 and slidably connected to the main scraper 503.

[0033] In actual operation, the device is moved to the designated working position by the moving wheel 7. When the device is working, the paper to be printed is placed on the support frame 2 located at the entrance of the box 1. The first motor 303 drives the first roller shaft 301 and the second roller shaft 302 to rotate through the belt drive assembly 304, so that the paper can be fed into the box 1 for powder spraying. The paper enters the box 1 and is conveyed by the electric conveying roller 305. By opening the air valve 402 to make it work, the powder in the powder storage box 401 can be sprayed from the powder spraying nozzle 405 onto the paper to complete the powder spraying work.

[0034] The distance between the main scraper 503 and the paper is adjusted by the control cylinder 501. When the powder-coated paper is conveyed to the main scraper 503, the main scraper 503 can scrape off the powder that has not been adsorbed onto the paper and put it into the recycling hopper 510. At the same time, the second motor 506 drives the reciprocating screw 504 to rotate through the first gear transmission assembly 507. Under the threaded connection between the screw 504 and the moving block 508, the moving block 508 can drive the auxiliary scraper 509 to move repeatedly along the direction of the reciprocating screw 504 under the guidance of the limit rod 505, scraping off the residual powder on the main scraper 503. The screen 511 can prevent the paper from falling off. At the same time, the third motor... The machine 518 drives the rotating rod 516 to rotate through the second gear transmission assembly 519, so that the cam 517 can intermittently impact the screen 511. The arrangement of the slider 512, the slide groove 513, the slide rod 514 and the spring 515 enables the screen 511 to achieve up and down reciprocating vibration, which makes the powder fall more easily and reduces residue. Excess powder falls into the collection box 521 in the recycling box 520 under the guidance of the recycling hopper 510, thereby realizing the recycling of powder. When a certain amount of powder is stored in the collection box 521, the collection box 521 can be pulled out from the recycling box 520 by the pull handle 522, and the recycled powder can be processed.

[0035] By activating the suction fan 523, the suction head 525 can absorb the printing dust floating inside the housing 1 through the suction pipe 524, and transport it to the purification box 526 through the dust outlet pipe 527. At this time, the pump 530 pumps the water in the water storage tank 528 into the atomizing nozzle 531, so that the atomizing nozzle 531 sprays water mist. When the water mist comes into contact with the dusty air, it can quickly adsorb the dust particles in the air, achieving the purpose of dust reduction. The dust-reduced air is then filtered through the first filter screen 534, the activated carbon layer 536, and the second filter screen 535 before being discharged to the outside. The settled powder residue is discharged through the drain pipe 533 under the guidance of the guide seat 532.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A printing powder recovery device for a printing press, comprising a housing (1) and a support frame (2), characterized in that: The support frame (2) is provided with a conveying mechanism (3), and the box (1) is provided with a powder spraying mechanism (4) and a recycling mechanism (5); The recycling mechanism (5) includes a recycling hopper (510) connected to the bottom of the housing (1). A screen (511) is slidably disposed inside the recycling hopper (510). Slider blocks (512) are fixedly disposed at both ends of the screen (511). A groove (513) is opened inside the recycling hopper (510) and is slidably connected to the slider (512). A slide rod (514) is fixedly disposed inside the groove (513) and is slidably connected to the slider (512). A spring is sleeved on the slide rod (514) and fixedly disposed between the bottom of the slider (512) and the groove (513). A spring (515) is provided. A rotating rod (516) is rotatably arranged inside the recycling hopper (510). A cam (517) is fixedly sleeved on the rotating rod (516). A third motor (518) is fixedly arranged at one end of the recycling hopper (510). A second gear transmission assembly (519) is provided between the rotating rod (516) rotatably passing through the recycling hopper (510) and the output shaft of the third motor (518). A recycling box (520) is connected to the bottom of the recycling hopper (510). A collection box (521) is slidably arranged inside the recycling box (520). A blower (523) and a purification box (526) are fixedly installed on the box (1). The air inlet of the blower (523) is connected to a dust suction pipe (524). The dust suction pipe (524) passes through the box (1) and is connected to a dust suction head (525). The air outlet of the blower (523) is connected to the purification box (526) via a dust outlet pipe (527). A water storage tank (528) and a pump (530) are fixedly installed on the purification box (526). The water storage tank (528) is connected to the water inlet pipe of the pump (530). The water outlet pipe of the pump (530) passes through the purification box (526) and is connected to an atomizing nozzle (531). A first filter screen (534), an activated carbon layer (536), and a second filter screen (535) are fixedly installed sequentially at one end of the air outlet in the purification box (526).

2. The printing powder recovery device for a printing press according to claim 1, characterized in that: The conveying mechanism (3) includes a first roller shaft (301) and a second roller shaft (302) rotatably mounted on the support frame (2). One end of the first roller shaft (301) and the second roller shaft (302) rotatably passes through the support frame (2) and is equipped with a belt drive assembly (304). A first motor (303) is fixedly mounted on the front side of the support frame (2). The output shaft of the first motor (303) rotatably passes through the support frame (2) and is fixedly connected to the first roller shaft (301). An electric conveying roller (305) is rotatably mounted inside the housing (1).

3. The printing powder recovery device for a printing press according to claim 1, characterized in that: The powder spraying mechanism (4) includes a powder storage box (401) and an air valve (402) fixedly installed on the box body (1). The air pipe of the air valve (402) is connected to the powder storage box (401), and a sealing cap (403) is threadedly connected to the feed pipe of the powder storage box (401).

4. The printing powder recovery device for a printing press according to claim 3, characterized in that: A hanging rod (407) is fixedly installed inside the box (1). A powder spraying pipe (404) is fixedly installed at the bottom of the hanging rod (407). A plurality of powder spraying nozzles (405) are connected to the bottom of the powder spraying pipe (404). A powder inlet pipe (406) is connected between the powder storage box (401) and the powder spraying pipe (404).

5. The printing powder recovery device for a printing press according to claim 1, characterized in that: A handle (522) is fixedly installed on the front side of the collection box (521), a water injection pipe (529) is connected to the water storage tank (528), a flow guide seat (532) is fixedly installed inside the purification box (526), ​​and a sewage pipe (533) is connected to the rear side of the purification box (526).

6. The printing powder recovery device for a printing press according to claim 1, characterized in that: A cylinder (501) is fixedly installed inside the housing (1). A fixed frame (502) is fixedly installed at the bottom of the output rod of the cylinder (501). A main scraper (503) is fixedly installed at the bottom of the fixed frame (502). A reciprocating screw (504) is rotatably installed inside the fixed frame (502). A second motor (506) is fixedly installed on the fixed frame (502). The output shaft of the second motor (506) and the reciprocating screw (504) both rotatably pass through the fixed frame (502) and are connected to a first gear transmission assembly (507).

7. The printing powder recovery device for a printing press according to claim 6, characterized in that: A limiting rod (505) is fixedly installed inside the fixed frame (502). A moving block (508) that is slidably connected to the limiting rod (505) is threaded onto the reciprocating screw (504). A secondary scraper (509) is fixedly installed on the moving block (508). The secondary scraper (509) is slidably connected to the main scraper (503).

8. The printing powder recovery device for a printing press according to claim 1, characterized in that: The bottom of the support frame (2) is fixedly provided with a support leg (6), and the bottom of the support leg (6) is fixedly provided with a movable wheel (7).

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