Continuous laser printing device for cartons

Abstract

The invention discloses a carton continuous laser printing device, and particularly relates to the technical field of carton laser printing equipment, the carton continuous laser printing device comprises a developing roller and a sponge roller, and further comprises a storage roller and elliptical teeth which are arranged on one side of the sponge roller, the end part of the storage roller is provided with annular teeth which are in meshing transmission with the elliptical teeth, and the side wall of the storage roller is provided with a rubber edge; and the adsorption openings are formed between the two adjacent rubber edges. The storage roller rotating forwards is in active friction with paper, the rubber edge wipes dust attached to the surface of the paper so as to remove the dust, the rubber edge with the negative electrode gradually gets away from the paper, the edge close to the tail end of the travel path of the paper is attracted by the negative electrode, and when the next paper is replaced, the adsorption opening faces the position between the two pieces of paper, so that the dust is removed. Therefore, the efficient wiping and dust adsorption capacity of the rubber edge is guaranteed, the problem that the paper is easily interfered by dust and occupies the powdered ink attachment position is solved, and the completeness and attractiveness of paper patterns are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of carton laser printing equipment, and in particular to a carton continuous laser printing device. Background Art

[0002] Corrugated paper boxes are important packaging materials, and their surfaces are usually printed with various patterns. During the production process, the unassembled segmented corrugated paper is placed on a conveyor belt and transported to the bottom of a laser printer in turn. They are then printed with toners of various colors, and finally the coating is clearly presented on the corrugated paper through the printer's heating roller and pressure roller.

[0003] According to the publication (announcement) number: CN208558661U, the publication (announcement) date: 2019-03-01, a laser coding device is disclosed.

[0004] In the prior art including the above-mentioned patent, after processing the corrugated paper, the same factory cuts the corrugated paper into sections, stacks it together and performs laser printing, and finally uses it for packaging. Compared with the paper that has been packaged and protected in advance, the corrugated paper that has been cut and stacked together is not effectively protected from dust removal, and the floating dust in the environment is easily attached to the paper surface. In addition, the dust attached to the surface of the corrugated paper easily interferes with the predetermined attachment position of the toner, causing incomplete printing and affecting the beauty of the pattern. Summary of the invention

[0005] The purpose of the present invention is to provide a carton continuous laser printing device, aiming to solve the above-mentioned problems.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A carton continuous laser printing device comprises a developing roller and a sponge roller, and also comprises a storage roller and an elliptical tooth arranged on one side of the sponge roller, wherein the end of the storage roller is provided with a ring tooth meshing with the elliptical tooth for transmission; The storage roller side wall is provided with a rubber edge, and a suction port is opened between two adjacent rubber edges, and a plurality of dust ports are opened in the suction port; It also includes a shovel frame arranged between the sponge roller and the storage roller, and the shovel frame is provided with a ash shovel plate that is pushed by the storage roller and moves obliquely; The end of the ash scraping plate is fitted with the rubber edge for scraping, and the ash scraping plate is reset when it enters the adsorption port, so that the inner side of the ash scraping plate is connected to the matching dust port.

[0007] Preferably, it also includes a dust collecting hood for the storage roller to rotate, and the storage roller is provided with an ash conveying hole connected to the dust port, and the ash conveying hole is connected to the dust collecting hood.

[0008] Preferably, the shovel frame is provided with a toner shoveling plate cooperating with the sponge roller for scraping, and a toner storage frame for receiving the toner discharged from the toner shoveling plate is provided on one side of the sponge roller.

[0009] Preferably, an elastic convex piece is provided at the end of the toner storage rack, and the suction port contacts the elastic convex piece to deform and bend, and the toner storage rack is tilted and discharged toward the suction port.

[0010] Preferably, the adsorption port is provided with a toner port arranged in an annular shape outside the dust port, the storage roller axis is provided with an axial hole connected to the toner port, and an auger shaft is arranged in the axial hole.

[0011] Preferably, a gravity valve with a valve stem is movably provided in the dust port, and weight plugs are arranged in an array on the valve stem; The end of the valve stem is provided with a circumferentially arranged valve sheet, and the valve sheet is divided into an outer sheet and an inner sheet according to function, and the two are used for intermittently opening and closing the toner port and the dust port.

[0012] Preferably, the dust port is provided with a plurality of recesses which movably cooperate with the counterweight plug.

[0013] Preferably, a hose connected to the shaft hole is provided in the dust collecting hood.

[0014] Preferably, it further comprises a transfer roller arranged on the back side of the paper, and a recovery box is arranged on the same side of the transfer roller, and the hose is connected to the recovery box.

[0015] Preferably, the storage roller cooperates with the developing roller.

[0016] In the above technical scheme, a carton continuous laser printing device provided by the present invention has the following beneficial effects: the positively rotating storage roller actively rubs against the paper, so that the rubber edge wipes the dust attached to the surface of the paper to achieve the purpose of removing dust, and the rubber edge with negative pole gradually moves away from the paper, so that the edge close to the end of the paper path is attracted by the negative pole to attract dust, and when replacing the next paper, the suction port is directed to between the two papers, thereby ensuring the efficient wiping and dust absorption capabilities of the rubber edge, making the paper less susceptible to interference from dust and occupying the toner attachment position, thereby increasing the completeness and beauty of the paper pattern. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1Schematic diagram of paper, partial structure of laser printer, storage roller and recycling box provided in an embodiment of the present invention; Figure 2 A schematic diagram of the storage roller and shovel frame structure provided in an embodiment of the present invention; Figure 3 A schematic cross-sectional view of a storage roller, an ash collecting cover and a recovery pipe provided in an embodiment of the present invention; Figure 4 A schematic side cross-sectional view of a storage roller and a shovel frame provided in an embodiment of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of point A; Figure 6 A schematic diagram of the structure of a gravity valve provided in an embodiment of the present invention; Figure 7 A schematic diagram of the sliding mode of the storage roller provided in an embodiment of the present invention.

[0019] Description of reference numerals: 1. Photosensitive drum; 11. Developing roller; 12. Sponge roller; 13. Transfer roller; 2. Storage roller; 20. Ring gear; 201. Elliptical gear; 21. Rubber edge; 22. Adsorption port; 221. Inner closing port; 23. Shaft hole; 231. Toner port; 232. Toner channel; 24. Ash delivery hole; 241. Dust port; 3. Auger shaft; 4. Gravity valve; 41. Valve stem; 42. Counterweight plug; 43. Valve plate; 431. Outer plate; 432. Inner plate; 5. Shovel rack; 51. Toner shovel board; 52. Ash shovel board; 53. Toner storage rack; 531. Elastic convex piece; 6. Dust hood; 7. Hose; 71. Recovery box. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-7 As shown, a carton continuous laser printing device includes a developing roller 11 and a sponge roller 12, and also includes a storage roller 2 and an elliptical tooth 201 arranged on one side of the sponge roller 12, and a ring tooth 20 meshing with the elliptical tooth 201 is arranged at the end of the storage roller 2; The storage roller 2 has a rubber edge 21 on its side wall, and a suction port 22 between two adjacent rubber edges 21, and a plurality of dust ports 241 are provided in the suction port 22; The invention also includes a shovel frame 5 disposed between the sponge roller 12 and the storage roller 2, and a shovel plate 52 is disposed on the shovel frame 5 to be pushed by the storage roller 2 and move obliquely; The end of the dust scraping plate 52 is scraped against the rubber edge 21 , and the dust scraping plate 52 is reset when it enters the suction port 22 , so that the inner side of the dust scraping plate 52 is connected to the matching dust port 241 .

[0022] Specifically, the laser printer is also provided with a photosensitive drum 1, and the photosensitive drum 1 is given a negative charge by a charging roller, and a predetermined pattern information is projected by a laser to convert the negative charge into a positive charge, so that the toner transferred on the developing roller 11 is added to the positive charge position, thereby achieving the purpose of printing a predetermined image, and the sponge roller 12 provides toner to the developing roller 11. These are all existing technologies and will not be elaborated here.

[0023] Further, Figure 1 Taking the perspective as an example, the paper moves from right to left, and thus passes under the storage roller 2 and the developing roller 11 until it reaches the position directly below the photosensitive drum 1, and the rotation tangent direction at the end point below the storage roller 2 is opposite to the direction of paper movement (the rotation direction is counterclockwise and corresponds to the forward direction). The purpose is to maintain the maximum friction effect between the rubber edge 21 and the paper to ensure the electrostatic capacity of the rubber edge 21.

[0024] Furthermore, the rubber edge 21 is a rubber pad fixedly mounted on the side wall of the storage roller 2, that is, the position where the suction port 22 is not provided on the storage roller 2, and is detachable for use and can be replaced in time after being worn.

[0025] Furthermore, the elliptical tooth 201 adopts the same driving method as driving various rollers in the laser printer, and utilizes the alternation of the major axis and the minor axis of the ellipse to realize the movement of the storage roller 2 in the inclined direction, and a guide groove or guide frame for the movement of the storage roller 2 is provided in the laser printer ( Figure 7 The guiding method shown in the figure, and the guide groove is opened on the inner wall of the laser printer; the guide frame has a groove, and the guide frame is fixedly installed on the inner wall of the laser printer, which are all existing guiding technologies and are not described here), to ensure that the storage roller 2 is stably used for dust removal.

[0026] Furthermore, a plurality of guide rods are fixedly installed on the ash scraping plate 52, and the guide rods slide through the shovel frame 5, and a spring is fixedly installed between the inner side of the ash scraping plate 52 and the shovel frame 5. In the default state of the spring, there is a gap between the lower end of the ash scraping plate 52 and the lower end of the shovel frame 5, and a funnel-shaped channel is formed between the two. However, when the ash scraping plate 52 compresses the spring, the funnel-shaped channel is squeezed to form an inverted triangle storage space, and partitions are provided on both sides of the shovel frame 5 to prevent dust leakage. The partitions and their installation methods are all existing technologies and will not be elaborated here. The purpose is to increase the function of concentrated dust collection to prevent dust from falling again and affecting paper printing.

[0027] The positively rotating storage roller 2 actively rubs against the paper, so that the rubber edge 21 wipes the dust attached to the surface of the paper to achieve the purpose of removing dust, and the rubber edge 21 with the negative pole gradually moves away from the paper, so that the edge close to the end of the paper is attracted by the negative pole, and when replacing the next paper, the suction port 22 is directed to between the two papers, thereby ensuring the efficient wiping and dust absorption capabilities of the rubber edge 21, making it less likely for the paper to be disturbed by dust and occupy the toner attachment position, increasing the integrity and beauty of the paper pattern, and driven by the elliptical teeth 201. During the process of the storage roller 2 moving obliquely upward, the rubber edge 21 after wiping and adsorption is actively scraped off the dust by the dust scraping plate 52, and the dust is temporarily stored in the triangular area between the dust scraping plate 52 and the shovel frame 5 until the dust scraping plate 52 enters the adsorption port 22 and resets, so that the triangular area forms a funnel-shaped channel again, and the scraped dust originally stored in the channel falls into the adsorption port 22 until the dust enters the dust port 241 for storage, thereby realizing centralized processing of the scraped dust, effectively increasing the anti-interference effect during paper printing, and greatly reducing the problem of incomplete paper printing.

[0028] As an embodiment further provided by the present invention, it also includes a dust collecting hood 6 for the storage roller 2 to rotate, and the storage roller 2 is provided with an ash conveying hole 24 connected to the dust port 241, and the ash conveying hole 24 is connected to the dust collecting hood 6.

[0029] Specifically, the storage roller 2 rotates at the end of the dust collecting cover 6, the purpose is to increase the rotation stability of the storage roller 2, so as to Figure 1 Taking the right side perspective as an example, the dust hood 6 and the paper are staggered so that the dust collected by the dust hood 6 can be processed at a position far away from the paper, and a pipeline is arranged below the dust hood 6 to centrally recover and process the accumulated dust, and a one-way valve body is arranged in the pipeline (the valve body and its installation method are prior art and are not described here), and the one-way valve body only transports dust to the outside of the pipeline, that is, the outside air cannot enter the dust hood 6 from the pipeline, thereby increasing the dust processing efficiency and the anti-leakage function.

[0030] Furthermore, the ash conveying hole 24 has an arc-shaped cross-section and is symmetrically arranged with respect to the axis of the storage roller 2. At the same time, the ash conveying hole 24 maintains a predetermined angle with respect to the axis of the storage roller 2, so that the ash conveying hole 24 in an inclined state, combined with the centrifugal force, can automatically replenish dust into the dust collecting hood 6, thereby increasing the dust collection effect.

[0031] The dust collected in the multiple dust ports 241 enters the ash conveying hole 24 under the action of gravity, and the dust accumulated therein is gradually added to the dust collecting hood 6 through the centrifugal force of the rotation of the storage roller 2, so that the pipeline on the dust collecting hood 6 can collect and recover the dust scraped from the storage roller 2, thereby improving the dust recovery efficiency and the effect of preventing leakage and pollution.

[0032] As another embodiment further provided by the present invention, a toner shoveling plate 51 cooperating with the sponge roller 12 for scraping is provided on the shoveling frame 5 , and a toner storage frame 53 for receiving the toner discharged by the toner shoveling plate 51 is provided on one side of the sponge roller 12 .

[0033] Specifically, the toner scraping plate 51 is fixedly mounted on the scraping frame 5 , and the arc-shaped toner scraping plate 51 is in contact with the side of the sponge roller 12 to efficiently scrape off the toner cleaned from the sponge roller 12 .

[0034] Furthermore, the toner storage rack 53 is hingedly arranged in the laser printer, and a torsion spring and a limiter are arranged at the hinged position, so that the toner storage rack 53 cannot continue to deflect along the direction of its port, and therefore the matching torsion spring can only deflect the toner storage rack 53 downward.

[0035] The unused toner on the developing roller 11 is collected by the sponge roller 12, and the toner shovel plate 51 scrapes the toner caught on the sponge roller 12, and the scraped toner is collected and dropped to the toner storage rack 53, thereby preventing the caught toner from interfering with the newly transported toner. At the same time, the function of centralized toner processing is provided, making the recycling of toner more convenient, and also preventing the problem of toner leakage and falling onto the paper surface, thereby increasing the safety of paper printing.

[0036] As another embodiment further provided by the present invention, an elastic protrusion 531 is provided at the end of the toner storage rack 53 , and the end of the suction port 22 resists the elastic protrusion 531 to deform and bend, and the toner storage rack 53 is dumped toward the suction port 22 .

[0037] Specifically, the elastic protrusion 531 is an arc-shaped elastic metal sheet, and the top of the arc is in the direction away from the storage roller 2. Rubber membranes or partitions are provided on both sides and the port of the toner storage rack 53 to prevent the toner storage rack 53 from shaking out toner in an active state, so that the toner can be stably stored in the toner storage rack 53.

[0038] Furthermore, the inner closing opening 221 is a protrusion on the end of the suction port 22, and the protrusion bends toward the suction port 22, so that the inner closing opening 221 can provide a function of preventing toner and dust from entering the suction port 22 from falling. When the end of the suction port 22 is downward, the toner and dust remaining in the suction port 22 can be intercepted and retained by the inner closing opening 221 to avoid falling onto the paper surface, thereby increasing the safety of paper printing.

[0039] During the regular maintenance of the laser printer, the paper conveying is stopped and the storage roller 2 is reversed (clockwise rotation) so that the lower end of the elastic protrusion 531 actively enters the suction port 22, and the inner opening 221 is against the elastic protrusion 531 to limit the elastic protrusion 531, so that the elastic protrusion 531 is forced to compress and deform, so that the elastic protrusion 531 bent away from the storage roller 2 actively pulls the toner storage rack 53 to deflect downward, so that the toner concentratedly stored in the toner storage rack 53 is replenished into the suction port 22, and the storage roller 2 can collect and recycle the toner and dust in a unified manner, thereby reducing the maintenance cycle of the laser printer by the maintenance personnel, and the storage roller 2 that continues to reverse makes the lower end of the elastic protrusion 531 actively slide and pop out from the suction port 22, and resets the toner storage rack 53. At this time, the storage roller 2 completes the collection of toner, and the toner collected in the toner storage rack 53 is regularly cleaned.

[0040] As another embodiment further provided by the present invention, a toner port 231 arranged in an annular shape outside the dust port 241 is provided in the suction port 22, an axial hole 23 connected to the toner port 231 is provided at the axis of the storage roller 2, and an auger shaft 3 is arranged in the axial hole 23.

[0041] Specifically, the dust port 241 and the toner port 231 are arranged in equal proportion in the suction port 22, and the curvature of the suction port 22 can allow all toner and dust to enter the toner port 231 and the dust port 241, so as to ensure the collection effect of the storage roller 2 on toner and dust.

[0042] Furthermore, an array of toner channels 232 are provided between the toner port 231 and the shaft hole 23 , and the multiple toner channels 232 gather the collected toner and flow it into the shaft hole 23 for transportation, and the multiple toner channels 232 are also located outside the ash conveying hole 24 .

[0043] Furthermore, the auger shaft 3 can only slide in the inclined direction and cannot rotate, and the sliding guide method is a prior art and will not be elaborated here, so that the storage roller 2 rotating relative to the auger shaft 3 can also play the function of spiral conveying, so that the collected toner can be centrally recovered and processed.

[0044] The toner in the toner storage rack 53 is collected through the suction port 22, and as the storage roller 2 continues to reverse, the suction port 22 gradually moves upward, so that the toner enters the toner channel 232 from the toner port 231 due to gravity, so that multiple toner channels 232 replenish the gathered toner into the shaft hole 23, and then the rotation of the auger shaft 3 and the storage roller 2 is used to discharge the gathered toner from the storage roller 2, so as to efficiently collect unused toner and reduce the workload of the laser printer to clean the toner.

[0045] As another embodiment further provided by the present invention, a gravity valve 4 with a valve stem 41 is movably provided in the dust port 241, and a weight plug 42 is arranged in an array on the valve stem 41; A circumferentially arranged valve plate 43 is provided at the end of the valve stem 41 , and the valve plate 43 is divided into an outer plate 431 and an inner plate 432 according to the function, and the two valve plates are used to intermittently open and close the toner port 231 and the dust port 241 .

[0046] Specifically, the gravity valve 4 is composed of a valve stem 41, a counterweight plug 42 and a valve plate 43. The counterweight plug 42 is fixedly mounted on the valve stem 41. A plurality of slideways are provided in the dust port 241. A slide rod sliding in the slideway is fixedly mounted on the valve stem 41 so that the gravity valve 4 can be stably moved in the dust port 241, thereby increasing the opening and closing effect of the valve plate 43 on the dust port 241 and the toner port 231.

[0047] Furthermore, a hole for the valve plate 43 to move is provided between the dust port 241 and the toner port 231 , and a rubber membrane is fixedly installed between the hole and the valve plate 43 to provide sealing between the dust port 241 and the toner port 231 to avoid the problem of interference and mixing of toner and dust.

[0048] Furthermore, one end of the valve plate 43 in the toner port 231 is the outer plate 431, and one end of the valve plate 43 in the dust port 241 is the inner plate 432, so that the valve plates 43 can be used separately. A rubber membrane is fixedly installed between every two outer plates 431 to provide sealing for multiple outer plates 431 to be closed / expanded, and a rubber strip is fixedly installed on the side of the inner plate 432, so that the inner plates 432 are sealed when they are closed and not sealed when they are expanded.

[0049] Furthermore, the toner port 231 is expanded outward in a trumpet shape to make it easier for toner to enter the toner port 231, while also providing a movable space for the outer plate 431 so that the toner port 231 can be opened and closed during the deflection of the outer plate 431, thereby improving the passing efficiency of toner.

[0050] Furthermore, the inner sheet 432 will be completely closed when pulled by the valve stem 41, and will be limited when pushed by the valve stem 41, so that there will be a gap between the inner sheets 432 for dust to pass through. At the same time, the end of the outer sheet 431 will contact the inner wall of the toner port 231 (i.e., providing a limit when pushing), so that the toner port 231 is closed, thereby ensuring the conveying / blocking effect of toner and dust.

[0051] During the reverse process of the storage roller 2, the suction port 22 is directed upward, and at this time, the plurality of counterweight plugs 42 move downward and pull the plurality of inner sheets 432 downward and together, so that the inner sheets 432 close the dust port 241, and accompanied by the plurality of outer sheets 431 gradually closing upward, the toner port 231 is opened during the process of the outer sheets 431 tilting up, so that the toner collected in the suction port 22 enters the toner port 231 and is then transported to the shaft hole 23, and during the forward rotation of the storage roller 2, the suction port 22 is directed downward, and at this time, the plurality of counterweight plugs 42 move downward and push the plurality of inner sheets 432 downward to expand, so that the dust port 241 is opened, and at the same time, the toner port 231 is closed, and when the toner port 231 is When there is incompletely transported toner in 231 or the toner in the toner path 232 is inverted and enters the toner port 231, the toner is accumulated on the closed outer sheet 431, and because the toner has a negative charge state, the toner in the toner port 231 forms electrostatic attraction, so that the end and the beginning of the two sheets of paper are adsorbed by the electrostatic attraction generated by the adsorption port 22, so that the dust port 241 on the inner side of the toner port 231 actively sucks in the dust, thereby increasing the dust adsorption effect of the dust port 241, and the entire adsorption port 22 can increase the dust adsorption capacity on the side wall of the storage roller 2, thereby improving the dust treatment effect on the paper surface and ensuring paper printing efficiency.

[0052] As another embodiment further provided by the present invention, a plurality of recesses for movably cooperating with the counterweight plug 42 are formed in the dust port 241 .

[0053] Specifically, a rubber ring is fixedly provided on the counterweight block 42 so that the counterweight block 42 exhibits piston motion during the sliding process in the dust port 241, and when the side of the counterweight block 42 is in the pit position, dust will enter the pit, and the dust accumulated in the pit will be pushed into the ash conveying hole 24 by the counterweight block 42, so as to facilitate the rapid transportation and discharge of the dust.

[0054] When the valve stem 41 pulls the valve plate 43, multiple counterweight plugs 42 slide toward the ash conveying hole 24, and the counterweight plugs 42 are staggered with the pits, so that the counterweight plugs 42 gradually push the dust in the pits into the ash conveying hole 24. When the valve stem 41 pushes the valve plate 43, the counterweight plugs 42 return to the pit position, and the missing air in the ash conveying hole 24 is pumped into the dust port 241 through the pit, so that the dust originally in the dust port 241 and the pit is sucked into the dust port 241 until it is pushed into the ash conveying hole 24 by the counterweight plugs 42, thereby repeatedly realizing the dust conveying work.

[0055] As another embodiment further provided by the present invention, a hose 7 connected to the shaft hole 23 is provided in the dust collecting hood 6 .

[0056] Specifically, a section of the hose 7 inside the dust hood 6 is a hard metal tube, and the two are fixedly connected, while the rest of the hose 7 is a rubber tube, so that the end of this section of the hose 7 and the storage roller 2 can maintain a rotational sliding manner, ensuring the anti-leakage and anti-mixing effect of the auger shaft 3 in transporting toner.

[0057] The toner conveying operation is maintained by the end of the hose 7 in the dust hood 6 in contact with the axial hole 23, so that the toner can be transported and recovered through the hose 7, thereby achieving the purpose of centralized toner processing. In addition, since a large amount of negatively charged toner is transported into the hose 7, the dust in the ash conveying hole 24 is attracted by the toner and transported into the dust hood 6, thereby improving the dust discharge efficiency and reducing the problem of clogging the ash conveying hole 24 due to long-term accumulation of dust.

[0058] As another embodiment further provided by the present invention, it also includes a transfer roller 13 arranged on the back side of the paper, and a recovery box 71 is arranged on the same side of the transfer roller 13 , and the hose 7 is connected to the recovery box 71 .

[0059] Specifically, the transfer roller 13 is located in the opposite direction of the photosensitive drum 1, so as to provide a negative charge downward pulling force for the toner on the paper. This is a prior art and will not be elaborated here. The recovery box 71 is detachably installed in the laser printer using bolts and nuts, and the hose 7 is plugged into the recovery box 71, also using a bolt and nut connection method, so that the recovery box 71 loaded with toner can be easily removed from the laser printer.

[0060] The toner inside is replenished into the recovery box 71 through the hose 7, so that the toner is finally stored in the recovery box 71, so that the recovery box 71 arranged on the back side of the printed paper and next to the transfer roller 13 can strengthen the downward pulling force on the toner on the surface of the paper due to the large amount of negatively charged toner inside, so as to adapt to corrugated paper that is thicker than traditional printing paper and increase the printing efficiency on the carton surface.

[0061] As another embodiment further provided by the present invention, the storage roller 2 cooperates with the developing roller 11 .

[0062] After the storage roller 2 for conveying toner has been used for a long time, the toner remaining in the shaft hole 23 and the influence of toner conveying can easily make the storage roller 2 as a whole have negative electrode capacity, and because the storage roller 2 will move closer to the sponge roller 12 during the activity, the storage roller 2 will perform like-charge repulsion treatment on the negative charge conveyed on the developing roller 11, so as to reduce the toner on the developing roller 11 that has not been conveyed to the photosensitive drum 1, and reduce the toner being grabbed and recovered by the sponge roller 12, so that the photosensitive drum 1 has higher printing efficiency on the paper and the image appears more beautiful.

[0063] Working principle: The positively rotating storage roller 2 actively rubs against the paper, so that the rubber edge 21 wipes the dust attached to the surface of the paper to remove the dust, and the rubber edge 21 with the negative pole gradually moves away from the paper, so that the edge close to the end of the paper is attracted by the negative pole, and when replacing the next paper, the suction port 22 is directed to between the two papers, ensuring the efficient wiping and dust absorption capabilities of the rubber edge 21, so that the paper is not easily disturbed by dust and occupies the toner attachment position, and the storage roller 2 driven by the elliptical teeth 201 During the upward movement, the rubber edge 21 after wiping and adsorption is actively scraped off dust by the shovel board 52, and the dust is temporarily stored in the triangular area between the shovel board 52 and the shovel frame 5, until the shovel board 52 enters the adsorption port 22 and resets, so that the triangular area forms a funnel-shaped channel again, and the dust originally temporarily stored in the channel falls into the adsorption port 22, until the dust enters the dust port 241 for storage, so that the scraped dust is centrally processed. During the regular maintenance of the laser printer, the paper is stopped from being transported, and the storage roller 2 is reversed to make The lower end of the elastic protrusion 531 actively enters the suction port 22, and the inner closing port 221 contacts the elastic protrusion 531 to limit the elastic protrusion 531, so that the elastic protrusion 531 is forced to compress and deform, so that the elastic protrusion 531 bent away from the storage roller 2 actively pulls the toner storage rack 53 to deflect downward, so that the toner stored in the toner storage rack 53 is replenished into the suction port 22, so that the storage roller 2 can uniformly collect and recycle the toner and dust, and the dust collected in the multiple dust ports 241 enters the ash conveying hole 24 under the action of gravity, and is gathered inside. The dust is gradually added into the dust collecting cover 6 by the centrifugal force of the rotation of the storage roller 2, so that the pipe on the dust collecting cover 6 can collect and process the dust scraped from the storage roller 2. As the storage roller 2 continues to reverse, the suction port 22 gradually moves upward. Therefore, the toner enters the toner channel 232 from the toner port 231 due to gravity, so that multiple toner channels 232 add the gathered toner into the shaft hole 23, and then the rotation of the auger shaft 3 and the storage roller 2 is coordinated to discharge the gathered toner from the storage roller 2, so as to efficiently collect the unused toner.

[0064] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A carton continuous laser printing device, comprising a developing roller (11) and a sponge roller (12), It is characterized in that It also comprises a storage roller (2) and an elliptical tooth (201) arranged on one side of the sponge roller (12); the end of the storage roller (2) is provided with a ring tooth (20) which meshes with the elliptical tooth (201) for transmission; The storage roller (2) is provided with a rubber edge (21) on the side wall, and a suction port (22) is provided between two adjacent rubber edges (21), and a plurality of dust ports (241) are provided in the suction port (22); It also includes a shovel frame (5) arranged between the sponge roller (12) and the storage roller (2), wherein the shovel frame (5) is provided with a ash shovel plate (52) that is pushed by the storage roller (2) and moves obliquely; The end of the dust scraping plate (52) is in contact with the rubber edge (21) for scraping, and the dust scraping plate (52) is reset when it enters the adsorption port (22), so that the inner side of the dust scraping plate (52) is connected to the matching dust port (241).

2. A carton continuous laser printing device according to claim 1, It is characterized in that It also comprises a dust collecting hood (6) for the storage roller (2) to rotate, the storage roller (2) being provided with an ash conveying hole (24) connected to the dust opening (241), and the ash conveying hole (24) being connected to the dust collecting hood (6).

3. A carton continuous laser printing device according to claim 2, It is characterized in that The shovel frame (5) is provided with a toner shoveling plate (51) that cooperates with the sponge roller (12) for scraping, and a toner storage frame (53) for receiving the toner discharged from the toner shoveling plate (51) is provided on one side of the sponge roller (12).

4. A carton continuous laser printing device according to claim 3, It is characterized in that An elastic protrusion (531) is provided at the end of the toner storage rack (53), and the end of the adsorption port (22) contacts the elastic protrusion (531) to deform and bend, and causes the toner storage rack (53) to pour out toward the adsorption port (22).

5. A carton continuous laser printing device according to claim 4, It is characterized in that The adsorption port (22) is provided with a toner port (231) arranged in an annular manner outside the dust port (241); the storage roller (2) is provided with an axial hole (23) in communication with the toner port (231); and an auger shaft (3) is arranged in the axial hole (23).

6. A carton continuous laser printing device according to claim 5, It is characterized in that A gravity valve (4) equipped with a valve stem (41) is movably arranged in the dust port (241), and weight plugs (42) are arranged in an array on the valve stem (41); The end of the valve stem (41) is provided with a circumferentially arranged valve plate (43), and the valve plate (43) is divided into an outer plate (431) and an inner plate (432) according to function, and the two plates are used to intermittently open and close the toner port (231) and the dust port (241).

7. A carton continuous laser printing device according to claim 6, It is characterized in that The dust port (241) is provided with a plurality of recesses that movably cooperate with the counterweight plug (42).

8. A carton continuous laser printing device according to claim 6, It is characterized in that The dust collecting cover (6) is provided with a hose (7) which is connected to the shaft hole (23).

9. A carton continuous laser printing device according to claim 8, It is characterized in that It also comprises a transfer roller (13) arranged on the back side of the paper, and a recovery box (71) is arranged on the same side of the transfer roller (13), and the hose (7) is connected to the recovery box (71).

10. A carton continuous laser printing device according to claim 8, It is characterized in that The storage roller (2) cooperates with the developing roller (11).

Images