Environment-friendly package printing device

Abstract

The invention discloses an environment-friendly package printing device which structurally comprises a supporting frame, a servo motor, a conveying cover, a conveying roller and a printing chamber, the servo motor and the conveying cover are installed on the surface of the right end of the supporting frame, a rotating disc and a belt connected with the rotating disc are arranged in the conveying cover, and the rotating disc is fixed to the conveying roller. An angle of a scraper is elastically swung, so that the effect of scraping redundant ink on the surface of the anilox roller is improved, and the situation that the printing definition of the surface of the corrugated carton is reduced and ink waste is caused due to the fact that the printed corrugated carton adsorbs too much ink is avoided; the two sliding blocks slide reversely through rotation of the worm, the two linkage supporting rods are in linkage supporting to vertically adjust the height of the bearing support, the distance between the impressing roller and the forme roller is adjusted, and therefore the thickness of a corrugated carton is matched; and the adhesion strength of surface printing of the corrugated carton is ensured, and the structure of the corrugated carton is prevented from being damaged due to excessive extrusion.

Description

Technical Field

[0001] The present invention relates to the field of printing technology, and more particularly to an environmentally friendly packaging printing device. Background Art

[0002] Corrugated boxes are made by laminating formed core paper with boxboard. After printing, cutting, and stapling, they become environmentally friendly packaging containers. Corrugated box materials are recyclable and can be reused after use, which is in line with the concept of sustainable development. Corrugated boxes are printed using a flexographic printing press. The flexographic printing press transfers water-based ink to the plate roller through the anilox roller. The plate roller and the impression roller then work together to print the ink absorbed by the plate roller surface onto the corrugated box surface. However, the existing flexographic printing machines have the following shortcomings when printing on corrugated cardboard boxes: when the anilox roller transfers water-based ink to the plate roller, the anilox roller cannot control the flow of ink, which makes it easy for the ink to be excessively adsorbed on the surface of the plate roller, resulting in excessive absorption of ink by the corrugated cardboard box after printing, thereby reducing the clarity of the printing on the surface of the corrugated cardboard box and causing ink waste. In addition, when the corrugated cardboard box is transferred between the plate roller and the embossing roller, the position of the embossing roller is fixed and cannot be adjusted according to the thickness of the corrugated cardboard box to adapt to corrugated cardboard boxes of different thicknesses. As a result, the spacing is too large, resulting in insufficient printing adhesion, and the spacing is too small, which easily causes the corrugated cardboard box to be over-extruded and damage its own structure. Summary of the Invention

[0003] The technical solution adopted by the present invention to achieve the technical purpose is: an environmentally friendly packaging printing device, which includes a support frame, a servo motor, a transmission cover, a transmission roller, and a printing chamber. The servo motor and the transmission cover are installed on the right end surface of the support frame. A rotating disk and a belt connected to it are provided inside the transmission cover. The rotating disk is fixed to the transmission roller. The servo motor drives the transmission roller to rotate. The printing chamber is fixedly installed in the middle of the upper end between the two support frames. A printing mechanism is installed at the left end of the interior of the printing chamber, and the printing mechanism includes an ink box, anilox roller, plate roller, and scraper. The ink box is installed above the left end of the interior of the printing chamber, and the lower end of the ink box is connected to the anilox roller. The lower left side of the anilox roller is in contact with the plate roller, and the upper right side of the anilox roller is in contact with the scraper. A hinged rod is provided in the middle of the knife and is connected with an axis. The upper end of the hinged rod is welded to the bottom of the ink tank, and a spring is welded between the hinged rod and the left side of the scraper. The spring has an arc structure, and the arc center of the spring is located on the same axis as the axis center of the intersection of the hinged rod and the scraper. When the scraper scrapes off excess ink on the surface of the rotating anilox roller, the hinged rod and the spring cooperate to make the angle of the scraper swing elastically; the bottom of the ink tank is also connected to a downflow cover to transmit the ink downward, and a sponge sheet is embedded in the inner side of the bottom of the downflow cover, and the sponge sheet is in contact with the upper surface of the anilox roller. The lower end of the downflow cover and the sponge sheet are both in an arc structure, matching the surface of the anilox roller, and the ink inside the ink tank is transmitted downward to the inside of the sponge sheet through the downflow cover.

[0004] As a further improvement of the present invention, a recovery shell is installed at the lower right end of the anilox roller, and an ink pump is installed on the right side of the recovery shell. The upper end of the ink pump is connected to a return pipe, and the upper end of the return pipe is connected to the interior of the upper end of the ink box. The recovery shell has an arc-shaped structure close to the surface of the anilox roller, and the recovery shell is located below the scraper.

[0005] As a further improvement of the present invention, a lower support cover is provided at the bottom of the printing chamber, and an embossing roller is installed inside the left side of the lower support cover, the axis of the embossing roller passes through the central shaft, and a motor is fixedly installed inside the lower support cover. The output end of the motor drives the transmission belt for transmission, and the transmission belt is connected to the rear end of the central shaft to rotate the embossing roller. The embossing roller is located directly below the plate roller, and the embossing roller and the plate roller rotate in opposite directions to squeeze and transmit the surface of the corrugated cardboard box transmitted on the transmission roller to achieve printing.

[0006] As a further improvement of the present invention, the front end of the central shaft is sleeved with a bearing drag, the lower end of the lower support cover is installed with a worm, and a slider is passed through the outside of the worm, the upper end of the slider is provided with a linkage support rod and is connected to the shaft, the upper end of the linkage support rod is hinged to the bottom of the bearing drag, the threads set at the head and tail ends of the worm are opposite, and a slider is provided at both ends, the upper ends of the two sliders are connected with a linkage support rod, and the two linkage support rods are connected to form a U-shaped structure.

[0007] As a further improvement of the present invention, a hot air box is also installed at the right end inside the printing chamber, and a rotating roller is connected to the lower end of the hot air box. An air outlet groove is embedded in the surface of the rotating roller. The rear end axis of the rotating roller and the output end of the reduction motor arranged inside the printing chamber are synchronously rotated and transmitted through a belt, and six air outlet grooves are evenly distributed on the surface of the rotating roller.

[0008] As a further improvement of the present invention, a fan is fixedly installed at the upper end of the hot air box, and a heating pipe is arranged below the fan. A lower row pipe is connected to the bottom of the hot air box, and the lower end of the lower row pipe is installed inside the sleeve ring set on the front axis of the rotating roller with a clearance fit. When the reduction motor drives the rotating roller to rotate, the lower row pipe remains stationary under the rotating sealing sleeve of the lower row pipe and the sleeve ring.

[0009] The beneficial effects of the present invention are: 1. The angle of the scraper is elastically swung by the combination of the hinged rod and the spring, which improves the effect of scraping off excess ink on the surface of the anilox roller, preventing the anilox roller from absorbing too much ink, which in turn causes excessive ink to be absorbed on the surface of the printing plate roller, resulting in excessive ink absorption on the corrugated paperboard after printing, reducing the clarity of the printing on the corrugated paperboard surface and causing ink waste; 2. The rotation of the worm causes the two sliders to slide in opposite directions, and the two linked support rods link the support to vertically adjust the height of the bearing drag, thereby adjusting the height of the embossing roller and the distance between the embossing roller and the plate roller to adapt to the thickness of the corrugated box, ensuring the adhesion of the printing on the surface of the corrugated box and preventing the corrugated box from being over-extruded and damaging its own structure; 3. The fan and heating tube inside the hot air box work synchronously. The fan blows the heat energy generated by the heating tube downward to form hot air. The hot air flows downward through the lower exhaust pipe into the rotating roller. Finally, the six air outlet slots rotate and blow the hot air out, expanding the range of drying the surface of the corrugated box. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural schematic diagram of an environmentally friendly packaging and printing device of the present invention.

[0011] Figure 2 Schematic diagram of the internal structure of the printing chamber of the present invention.

[0012] Figure 3 It is a schematic diagram of the printing mechanism of the present invention and a partially enlarged structure.

[0013] Figure 4 It is a structural schematic diagram of the embossing roller of the present invention.

[0014] Figure 5 It is a schematic diagram of the three-dimensional structure of the drying mechanism of the present invention.

[0015] Figure 6 Schematic diagram of the internal structure of the hot air box of the present invention.

[0016] Figure: Support frame 1, servo motor 2, transmission cover 3, transmission roller 4, printing chamber 5, top cover 51, lower support cover 52, printing mechanism 53, ink tank 531, downflow cover 5311, sponge sheet 5312, anilox roller 532, plate roller 533, recovery shell 534, scraper 535, hinged rod 5351, spring 5352, ink pump 536, return pipe 536 1. Embossing roller 54, central shaft 541, motor 542, transmission belt 5421, worm gear 543, slider 5431, linkage support rod 5432, bearing drag 5433, drying mechanism 55, hot air box 551, lower exhaust pipe 5511, fan 5512, heating pipe 5513, rotating roller 552, sleeve ring 5521, air outlet slot 5522, reduction motor 553. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings: Example 1: As attached Figure 1 To the attached Figure 4 As shown: The present invention discloses an environmentally friendly packaging printing device, which comprises a support frame 1, a servo motor 2, a transmission cover 3, a transmission roller 4, and a printing chamber 5. The servo motor 2 and the transmission cover 3 are mounted on the right end surface of the support frame 1. A rotating disk and a belt connected thereto are arranged inside the transmission cover 3. The rotating disk is fixed to the transmission roller 4. The servo motor 2 drives the transmission roller 4 to rotate. The printing chamber 5 is fixedly mounted at the middle of the upper end between the two support frames 1. A printing mechanism 53 is mounted at the left end of the printing chamber 5. The printing mechanism 53 comprises an ink tank 531, an anilox roller 532, a printing plate roller 533, and a scraper 535. The ink tank 531 is mounted above the left end of the printing chamber 5. The anilox roller 532 is connected to the lower end of the ink tank 531. The anilox roller 532 abuts against the printing plate roller 533 at the lower left of the anilox roller 532. , and the upper right side of the anilox roller 532 is in contact with a scraper 535, a hinged rod 5351 is provided in the middle of the scraper 535 and is connected with an axis, the upper end of the hinged rod 5351 is welded to the bottom of the ink tank 531, and a spring 5352 is welded between the hinged rod 5351 and the left side of the scraper 535; the bottom of the ink tank 531 is also connected to a downflow cover 5311 for downward transmission of ink, and a sponge sheet 5312 is embedded on the inner side of the bottom of the downflow cover 5311, and the sponge sheet 5312 is in contact with the upper end surface of the anilox roller 532, a recovery shell 534 is installed at the lower right end of the anilox roller 532, and an ink pump 536 is installed on the right side of the recovery shell 534, the upper end of the ink pump 536 is connected to a return pipe 5361, and the upper end of the return pipe 5361 is connected to the inner part of the upper end of the ink tank 531.

[0018] The printing chamber 5 is provided with a lower support cover 52 at the bottom, and an embossing roller 54 is installed inside the left side of the lower support cover 52. The axis of the embossing roller 54 passes through a central shaft 541. A motor 542 is fixedly installed inside the lower support cover 52. The output end of the motor 542 drives a transmission belt 5421 for transmission. The transmission belt 5421 is connected to the rear end of the central shaft 541 for transmission so that the embossing roller 54 rotates. The embossing roller 54 is located directly below the plate roller 533, and the embossing roller 54 and the plate roller 533 rotate in opposite directions to squeeze and transmit the Z surface of the corrugated cardboard box transmitted on the transmission roller 4 to achieve printing. The front end of the central shaft 541 is sleeved with a bearing drag 5433. A worm 543 is installed at the lower end of the lower support cover 52, and a slider 5431 passes through the outside of the worm 543. A linkage support rod 5432 is provided on the upper end of the slider 5431 and is axially connected. The upper end of the linkage support rod 5432 is hinged to the bottom of the bearing drag 5433. In a preferred technical solution, the spring 5352 has an arc-shaped structure, and the arc center of the spring 5352 is coaxial with the axis of the intersection of the hinge rod 5351 and the scraper 535. When the scraper 535 scrapes excess ink from the rotating anilox roller 532, the hinge rod 5351 and the spring 5352 cooperate to allow the angle of the scraper 535 to elastically swing, thereby improving the effect of scraping excess ink from the anilox roller 532 and preventing the anilox roller 532 from absorbing too much ink, which in turn causes excessive absorption of ink on the surface of the printing plate roller 533. This would cause the corrugated cardboard box to absorb too much ink after printing, thereby reducing the clarity of the printing on the corrugated cardboard box surface and causing ink waste. In a preferred technical solution, the lower end of the downflow cover 5311 and the sponge sheet 5312 are both curved structures that match the surface of the anilox roller 532. The downflow cover 5311 transfers the ink inside the ink tank 531 downward to the inside of the sponge sheet 5312. The rotation of the anilox roller 532 gradually transfers the ink to the entire surface of the printing plate roller 533, thereby improving the ink absorption of the printing plate roller 533 and preventing excessive ink. In a preferred technical solution, the recovery shell 534 is an arc-shaped structure close to the surface of the anilox roller 532, and the recovery shell 534 is located below the scraper 535. When the scraper 535 scrapes off excess ink from the surface of the anilox roller 532, the ink flows into the recovery shell 534. The ink pump 536 and the return pipe 5361 cooperate to transfer the ink inside the recovery shell 534 back to the ink tank 531, thereby recycling the ink and avoiding ink waste. A preferred technical solution is that the threads arranged at the head and tail ends of the worm 543 are opposite, and a slider 5431 is arranged at both ends. The upper ends of the two sliders 5431 are connected to a linkage support rod 5432. The two linkage support rods 5432 are connected to form a V-shaped structure. The two sliders 5431 slide in opposite directions through the rotation of the worm 543. The two linkage support rods 5432 link the support to vertically adjust the height of the bearing drag 5433, thereby adjusting the height of the embossing roller 54 and the distance between the embossing roller 54 and the plate roller 533, so as to adapt to the thickness of the corrugated cardboard box Z, ensure the adhesion strength of the printing on the surface of the corrugated cardboard box Z, and avoid excessive extrusion of the corrugated cardboard box Z to damage its own structure.

[0019] In the present invention, the servo motor 2 is started to drive the rotating disk inside the transmission cover 3 to rotate and the belt transmission connected thereto is running. At this time, multiple transmission rollers 4 rotate and run synchronously, and the corrugated cardboard box Z is placed on the transmission roller 4 and transmitted into the printing room 5. The corrugated cardboard box Z is squeezed and transmitted between the printing plate roller 533 and the impression roller 54 inside the printing room 5. The ink is transmitted to the interior of the downstream cover 5311 through the ink tank 531 above. Under the adhesion of the sponge sheet 5312, the ink is slowly transmitted to the entire surface of the printing plate roller 533 in the rotating process, and when the printing plate roller 533 rotates, the hinge rod 5351 and the spring are connected. With the cooperation of the spring 5352, the angle of the scraper 535 is elastically swung to effectively scrape off the excess ink on the surface of the anilox roller 532, thereby preventing the anilox roller 532 from absorbing too much ink, which in turn causes the ink to be excessively absorbed on the surface of the printing plate roller 533, resulting in excessive absorption of ink by the corrugated cardboard box after printing, thereby reducing the clarity of the printing on the surface of the corrugated cardboard box and causing ink waste. The scraped ink flows into the recovery shell 534, and is transferred back to the ink tank 531 through the cooperation of the ink pump 536 and the return pipe 5361, thereby realizing ink recycling and avoiding ink waste. At the same time, before printing, the worm 543 can be rotated and adjusted according to the thickness of the corrugated cardboard box Z itself. The rotation of the worm 543 causes the two sliders 5431 to slide in opposite directions, and the two linked support rods 5432 link the support to vertically adjust the height of the bearing drag 5433, and adjust the distance between the embossing roller 54 and the printing plate roller 533 to adapt to the thickness of different corrugated cardboard boxes Z, ensure the effective extrusion and transmission of the corrugated cardboard box Z between the embossing roller 54 and the printing plate roller 533, improve the adhesion strength of the printing on the surface of the corrugated cardboard box Z, and avoid excessive extrusion of the corrugated cardboard box Z by the embossing roller 54 and the printing plate roller 533 to damage the structure of the corrugated cardboard box Z.

[0020] Example 2: Based on Example 1, Figure 5 To the attached Figure 6 As shown: A hot air box 551 is further installed at the right end of the interior of the printing chamber 5, and a rotating roller 552 is connected to the lower end of the hot air box 551. An air outlet slot 5522 is embedded on the surface of the rotating roller 552. The rear end axis of the rotating roller 552 and the output end of the reduction motor 553 provided inside the printing chamber 5 are synchronously rotated and transmitted via a belt. Six air outlet slots 5522 are evenly distributed on the surface of the rotating roller 552. A fan 5512 is fixedly installed at the upper end of the interior of the hot air box 551, and a heating pipe 5513 is provided below the fan 5512. A lower exhaust pipe 5511 is connected to the bottom of the hot air box 551, and the lower end of the lower exhaust pipe 5511 is installed inside the sleeve ring 5521 provided on the front end axis of the rotating roller 552 with a clearance fit. A preferred technical solution is that when the reduction motor 553 drives the rotating roller 552 to rotate, the lower row pipe 5511 remains stationary under the rotating sealing sleeve of the lower row pipe 5511 and the sleeve ring 5521, and stably transmits the hot air generated inside the fan 5512 to the inside of the rotating roller 552. Through the rotation of the rotating roller 552, the hot air is rotated and blown out from the inside of the six air outlet slots 5522, thereby expanding the range of drying the Z surface of the corrugated cardboard box, and at the same time avoiding the situation where only a single air outlet blows directly to the Z surface of the corrugated cardboard box, causing the drying temperature to be too high and resulting in damage to the Z surface of the corrugated cardboard box.

[0021] In the present invention, the printed corrugated cardboard box Z is further transmitted through the transmission roller 4 to the bottom of the rotating roller 552. At this time, the rotating roller 552 is driven to rotate slowly by starting the reduction motor 553, and the fan 5512 and the heating tube 5513 inside the hot air box 551 work synchronously. The heat energy generated by the heating tube 5513 is blown downward by the fan 5512 to form hot air. The hot air flows downward through the lower exhaust pipe 5511 into the interior of the rotating roller 552. Finally, the six air outlet slots 5522 rotate and blow out the hot air, thereby expanding the range of drying the surface of the corrugated cardboard box Z.

[0022] Utilizing the technical solution of the present invention, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present invention to achieve the above technical effects, all fall within the scope of protection of the present invention.

Claims

1. An environmentally friendly packaging printing device, comprising a support frame (1), a servo motor (2), a transmission cover (3), a transmission roller (4), and a printing chamber (5), wherein the servo motor (2) and the transmission cover (3) are mounted on the right end surface of the support frame (1), a rotating disk and a belt connected thereto are arranged inside the transmission cover (3), the rotating disk is fixed to the transmission roller (4), the servo motor (2) drives the transmission roller (4) to rotate, and the printing chamber (5) is fixedly mounted in the middle of the upper end between the two support frames (1), characterized in that: A printing mechanism (53) is installed at the left end of the interior of the printing chamber (5), and the printing mechanism (53) includes an ink box (531), an anilox roller (532), a printing plate roller (533), and a scraper (535). The ink box (531) is installed above the left end of the interior of the printing chamber (5), and the lower end of the ink box (531) is connected to the anilox roller (532). The lower left side of the anilox roller (532) abuts against the printing plate roller (533), and the upper right side of the anilox roller (532) abuts against the scraper (535). A hinged rod (5351) is provided in the middle of the scraper (535) and is axially connected. The upper end of the hinged rod (5351) is welded to the bottom of the ink box (531), and a spring (5352) is welded between the hinged rod (5351) and the left side of the scraper (535). The bottom of the ink box (531) is also connected to a downflow cover (5311) for transmitting ink downward, and a sponge sheet (5312) is embedded on the inner side of the bottom of the downflow cover (5311), and the sponge sheet (5312) contacts the upper end surface of the anilox roller (532).

2. The environmentally friendly packaging printing device according to claim 1, characterized in that: A recovery shell (534) is installed at the lower right end of the anilox roller (532), and an ink pump (536) is installed on the right side of the recovery shell (534). The upper end of the ink pump (536) is connected to a return pipe (5361), and the upper end of the return pipe (5361) is connected to the interior of the upper end of the ink box (531).

3. The environmentally friendly packaging and printing device according to claim 1, characterized in that: A lower support cover (52) is provided at the bottom of the printing chamber (5), and an embossing roller (54) is installed inside the left side of the lower support cover (52). The axis of the embossing roller (54) passes through a central shaft (541). A motor (542) is fixedly installed inside the lower support cover (52). The output end of the motor (542) drives a transmission belt (5421) for transmission. The transmission belt (5421) is connected to the rear end of the central shaft (541) for transmission so that the embossing roller (54) rotates. The embossing roller (54) is located directly below the printing plate roller (533), and the embossing roller (54) and the printing plate roller (533) rotate in opposite directions to squeeze and transmit the surface of the corrugated paper box (Z) transmitted on the transmission roller (4) to achieve printing.

4. The environmentally friendly packaging and printing device according to claim 3, characterized in that: The front end of the central shaft (541) is sleeved with a bearing drag (5433), the lower end of the lower support cover (52) is installed with a worm (543), and the outside of the worm (543) is penetrated by a slider (5431), the upper end of the slider (5431) is provided with a linkage support rod (5432) and is connected to the shaft, and the upper end of the linkage support rod (5432) is hinged to the bottom of the bearing drag (5433).

5. The environmentally friendly packaging and printing device according to claim 1, characterized in that: A hot air box (551) is further installed at the right end inside the printing chamber (5), and a rotating roller (552) is connected to the lower end of the hot air box (551). An air outlet slot (5522) is embedded on the surface of the rotating roller (552). A belt is provided between the rear end axis of the rotating roller (552) and the output end of a reduction motor (553) provided inside the printing chamber (5) for synchronous rotation transmission. Six air outlet slots (5522) are evenly distributed on the surface of the rotating roller (552).

6. The environmentally friendly packaging and printing device according to claim 5, characterized in that: A fan (5512) is fixedly mounted on the upper end of the hot air box (551), and a heating pipe (5513) is provided below the fan (5512). A lower pipe (5511) is connected to the bottom of the hot air box (551), and the lower end of the lower pipe (5511) is mounted with a clearance fit inside a sleeve ring (5521) provided on the front axis of the rotating roller (552).

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