Double-sided printing material feeding and discharging structure with lower feeding and upper discharging

Abstract

The present invention belongs to the technical field of double-sided printing, specifically a double-sided printing material collection and discharge structure with lower lowering and upper collecting, comprising a frame, a material collection assembly is provided on the top of one side of the frame, a material loading assembly is provided on the bottom of one side of the frame, a printing assembly is provided in the middle of the inner cavity of the frame, and a drying assembly is provided on the top of the inner cavity of the frame. The structure is reasonable. A balance bar is provided on one side of the discharge roller to ensure that the unprinted material passes between the active discharge roller and the passive discharge roller in a balanced and stable manner. A tensioning roller is provided at the bottom of the double-sided printing head to prevent the material from shaking and affecting the printing quality. The heating roller acts on two points. One function is to prevent the material from shaking because the material is stretched and is easy to shake when feeding. The second function is to prevent contamination and sticky ink. The drying assembly composed of a main drying and heating assembly, a guide roller and a second drying and heating assembly improves the drying efficiency of the device and ensures the quality of the product.

Description

Technical Field

[0001] The invention relates to the technical field of double-sided printing, in particular to a double-sided printing material collecting and releasing structure with downward-deployed and upward-collected materials. Background Art

[0002] A printer is a computer output device used to print computer processing results onto a suitable medium. Three key indicators of printer quality are print resolution, print speed, and noise. There are many different types of printers. Depending on whether the printing element strikes the paper, printers are categorized as impact printers and non-impact printers. Based on the structure of printed characters, printers are categorized as full-width printers and dot-matrix printers. Based on the way a line of text is formed on paper, printers are categorized as medium-length printers and line-matrix printers. Based on the technology used, printers can be classified as cylindrical, spherical, inkjet, thermal, laser, electrostatic, magnetic, and LED printers.

[0003] The existing double-sided printing material collection and unloading structure has some shortcomings during use, such as low drying efficiency and easy ink staining. To this end, we propose a new bottom-down and top-down double-sided printing material collection and unloading structure to solve the above problems. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid blurring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] In view of the problems existing in the existing double-sided printing material collecting and releasing structure, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a double-sided printing material collection and release structure that can prevent ink contamination during use, improve drying efficiency, and improve printing quality.

[0007] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] The double-sided printing material collecting and releasing structure with lower lower lower upper retraction includes: a frame, the frame is provided with a loading assembly and a receiving assembly for vertically tensioning the roll material to be printed, the receiving assembly is located at the top of one side of the frame, the loading assembly is located at the bottom of one side of the frame, a printing assembly for printing on the vertical roll material is provided in the middle of the inner cavity of the frame, and a drying assembly is provided above the printing assembly at the top of the inner cavity of the frame.

[0009] By adopting the above technical solution, because the ink on the material will undergo a gaseous reaction in the drying state, turning into water vapor into the air and diffusing upward, and the printing material of this design is fed from bottom to top, the clean printing material below will not come into contact with the vaporized ink; thereby reducing the contamination of the printed material and improving the printing quality.

[0010] Preferably, the printing assembly includes a double-sided printing head, the double-sided printing head includes at least one front printing module and at least one back printing module, and the front printing module and the back printing module have the same structure; the front printing module includes a first nozzle assembly and a first ink absorption assembly for horizontal inkjet, and the first nozzle assembly and the first ink absorption assembly are symmetrically arranged on both sides of the vertical roll; the back printing module includes a second nozzle assembly and a second ink absorption assembly for horizontal inkjet, and the second nozzle assembly and the second ink absorption assembly are symmetrically arranged on both sides of the vertical roll; the first nozzle assembly and the second nozzle assembly are arranged on both sides of the vertical roll; the first nozzle assembly includes a plurality of nozzles arranged horizontally or vertically; the first ink absorption assembly includes a plurality of suction nozzles corresponding to the nozzles.

[0011] By adopting the above technical solution, this design is used for printing on roll materials, which can be cloth, paper or other rolled materials, so as to facilitate rotating unwinding and rewinding in this design.

[0012] This design straightens the web and prints on the straightened area. The nozzle assembly sprays horizontally, allowing the ink to be precisely sprayed onto the web. Since an ink absorber is located opposite the nozzle assembly, the ink that passes through the web will be absorbed by the ink absorber. The corresponding pattern is used to absorb the transmitted ink, which can significantly reduce ink contamination.

[0013] The nozzles and the suction nozzles are arranged in a one-to-one correspondence in order to improve the efficiency of absorbing the transmissive ink.

[0014] The drying component dries and solidifies the ink quickly, reducing ink flow pollution.

[0015] Preferably, the rack includes a frame, support legs are provided at the four bottom corners of the frame, inspection doors are provided on both sides of the front surface of the frame, and a man-machine operation panel is provided on the right side of the frame.

[0016] Preferably, the feeding assembly includes a feeding roller, a balance bar, a passive feeding roller and an active feeding roller, the balance bar is arranged on one side of the feeding roller, and the passive feeding roller and the active feeding roller are arranged at the bottom of the inner cavity of the frame.

[0017] Preferably, the printing assembly includes a tensioning roller and a heating roller, and the tensioning roller and the heating roller are respectively arranged at the bottom and the top of the double-sided printing head.

[0018] Preferably, the drying assembly includes a main drying and heating assembly, a guide roller and a second drying and heating assembly, the main drying and heating assembly is arranged above the printing assembly, and the guide roller and the second drying and heating assembly are arranged at the top of the inner cavity of the frame.

[0019] Preferably, the receiving assembly includes a receiving roller, an active receiving roller, a passive receiving roller, an isolation paper roller and two guide rollers, the isolation paper roller is arranged at the bottom of the receiving roller, the active receiving roller and the passive receiving roller are arranged on one side of the receiving roller, and the two guide rollers are arranged on the top of one side of the frame.

[0020] Preferably, the vertical sections of the active unloading roller and the guide roller are in the same plane.

[0021] By adopting the above technical solution, the vertical sections are on the same plane in order to ensure that the coil is pulled into a vertical shape.

[0022] Preferably, the main drying and heating component includes infrared heating devices located on both sides of the vertical coil, the main drying and heating component is located below the first guide roller, and the second drying and heating component is a hot air flow generator.

[0023] The above technical solution dries and heats the printed material, solidifying the ink. During the drying phase, the ink on the material undergoes a gaseous reaction, transforming into water vapor and escaping into the air. The infrared heating device prevents the vaporized ink from circulating in the main drying and heating components, potentially contaminating equipment components. The vertical movement of the printed material from bottom to top in this design also aims to allow the vaporized ink to flow upward, preventing further contact between the flowing, vaporized ink and the printing device components.

[0024] Since the ink on the printed material has been basically solidified during the second drying process, hot air flow heating is used.

[0025] Preferably, an air suction and exhaust mechanism is provided above a guide roller, the air suction port of the exhaust mechanism is arranged tilted downward, and the lower end of the exhaust mechanism is connected to an oil collection tank; the second drying and heating components and the exhaust mechanism are located on both sides of a guide roller; a guide roller is in contact with a driven sponge roller.

[0026] By adopting the above technical solution, there are the following advantages:

[0027] (1) Because the ink on the material will undergo a gaseous reaction in the drying state and turn into water vapor and enter the air, which will cause pollution to the material. Therefore, there is a smoke exhaust mechanism at the top to remove the oil smoke in the air from the inside of the machine. There is a waste oil collection tank on the smoke exhaust mechanism. When the oil smoke encounters cold air during the exhaust process, the oil smoke liquefies into liquid, and the liquid flows into the waste oil collection tank along the outer wall of the smoke exhaust mechanism to prevent the liquefaction of oil smoke from polluting the material or the front parts of the vehicle.

[0028] (2) The second drying and heating component blows air to the printing material, and the smoke exhaust mechanism is located on the other side of the second drying and heating component to absorb air. This is exactly the purpose of the second drying and heating component and the smoke exhaust mechanism being located on both sides of the first guide roller, which quickly collects the flowing airflow to prevent the airflow carrying ink from running around inside the equipment and causing the oil smoke to liquefy and pollute the material or the front parts.

[0029] (3) Compared with the traditional printer's top-down material feeding and bottom-up material feeding scheme, this design can effectively solve the pollution problem and the problem of material drying. The traditional design has the drying at the bottom. If the power is increased during drying, a lot of smoke will be generated, which cannot be eliminated, causing serious equipment and material pollution. The bottom-down material feeding and top-up material feeding scheme solves the drying pollution problem, thereby directly improving the printing speed.

[0030] (4) After the main drying and heating is completed, the material enters the first guide roller and enters the material collection stage. Because the material has just been dried, in order to prevent the ink on the material from being undried and contaminating the first guide roller, a sponge roller structure is placed under the first guide roller to self-clean the contaminated ink on the first guide roller.

[0031] Compared with the prior art, the beneficial effects of the present invention are: by arranging a balance bar on one side of the discharge roller, it is ensured that the unprinted material passes stably and balanced between the active discharge roller and the passive discharge roller; a tensioning roller is provided at the bottom of the double-sided printing head to prevent the material from shaking and affecting the printing quality; the heating roller acts on two points, one to prevent the material from shaking because the material is stretched and is easy to shake when feeding; the second function is to prevent contamination of ink; the drying assembly composed of the main drying and heating assembly, a guide roller and a second drying and heating assembly improves the drying efficiency of the device and ensures the quality of the product; the isolation paper roller is used to prevent the problem of sticking of the reeled material after printing due to different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them:

[0033] Figure 1 This is a schematic structural diagram of Example 1;

[0034] Figure 2 for Figure 1 Cross-sectional view at AA in the middle;

[0035] Figure 3 This is a schematic structural diagram of the double-sided printing head in Example 1;

[0036] Figure 4 This is a schematic structural diagram of the double-sided printing head in Example 1 when it is flattened with the vertical web as the symmetry plane;

[0037] Figure 5 This is a schematic diagram showing the structure of the nozzle and the suction nozzle in Example 1;

[0038] Figure 6 This is a schematic diagram of the internal structure layout in Example 2;

[0039] Figure 7 This is a schematic structural diagram of the double-sided printing head, primary drying and heating assembly, fume exhaust mechanism, and secondary drying and heating assembly in Example 2;

[0040] Figure 8 It is a structural diagram of the smoke exhaust mechanism in Example 2.

[0041] In the figure, 100, frame; 110, frame; 120, support leg; 130, inspection door; 140, human-machine operation panel; 200, loading assembly; 210, loading roller; 220, balance bar; 230, passive unloading roller; 240, active unloading roller; 300, printing assembly; 310, double-sided printing head; 320, tensioning roller; 330, heating roller; 400, drying assembly; 410, main drying and heating assembly; 420, first guide roller; 430, second drying and heating assembly; 500, receiving assembly; 510, receiving roller; 520, active receiving roller; 530, passive receiving roller; 540, release paper roller; 550, second guide roller;

[0042] 6. Front printing module; 61. First nozzle assembly; 62. First ink absorption assembly; 7. Reverse printing module; 71. Second nozzle assembly; 72. Second ink absorption assembly; 91. Smoke exhaust mechanism; 92. Oil collecting tank; 93. Sponge roller. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0045] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0046] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0047] Example 1, please refer to Figure 1 and Figure 2 The double-sided printing material collecting and releasing structure includes a frame 100, a loading component 200, a printing component 300, a drying component 400 and a collecting component 500.

[0048] The frame 100 is provided with a material receiving assembly 500 on the top of one side of the frame 100, a material loading assembly 200 is provided on the bottom of one side of the frame 100, a printing assembly 300 is provided in the middle of the inner cavity of the frame 100, and a drying assembly 400 is provided on the top of the inner cavity of the frame 100.

[0049] Specifically, the rack 100 includes a frame 110 , wherein support legs 120 are provided at the four corners of the bottom of the frame 110 , access doors 130 are provided on both sides of the front surface of the frame 110 , and a man-machine operation panel 140 is provided on the right side of the frame.

[0050] Specifically, the feeding assembly 200 includes a feeding roller 210, a balance bar 220, a passive feeding roller 230 and an active feeding roller 240. The balance bar 220 is arranged on one side of the feeding roller 210, and the passive feeding roller 230 and the active feeding roller 240 are arranged at the bottom of the inner cavity of the frame 100.

[0051] Specifically, the printing assembly 300 includes a duplex printing head 310 , a tensioning roller 320 and a heating roller 330 . The tensioning roller 320 and the heating roller 330 are respectively arranged at the bottom and the top of the duplex printing head 310 .

[0052] Specifically, the drying component 400 includes a main drying and heating component 410, a first guide roller 420 and a second drying and heating component 430. The main drying and heating component 410 is arranged above the printing component 300, and the first guide roller 420 and the second drying and heating component 430 are arranged at the top of the inner cavity of the frame 100.

[0053] Specifically, the receiving assembly 500 includes a receiving roller 510, an active receiving roller 520, a passive receiving roller 530, an isolation paper roller 540 and two guide rollers 550. The isolation paper roller 540 is arranged at the bottom of the receiving roller 510, the active receiving roller 520 and the passive receiving roller 530 are arranged on one side of the receiving roller 510, and the two guide rollers 550 are arranged on the top of one side of the frame 100.

[0054] Reference Figure 2-Figure 5 The vertical sections of the active discharge roller 240 and the guide roller 420 are in the same plane, so the cloth can be in a vertically straightened state on the same side of the active discharge roller 240 and the guide roller 420; the cloth refers to the material to be printed, that is, the roll material.

[0055] The printing assembly 300 includes a double-sided printing head 310.

[0056] The double-sided printing head 310 includes a front printing module 6 and a back printing module 7. The front printing module 6 and the back printing module 7 have the same structure.

[0057] The front printing module 6 includes a first nozzle assembly 61 for horizontal inkjet and a first ink absorbing assembly 62, which are symmetrically arranged on both sides of the vertical cloth;

[0058] The reverse printing module 7 includes a second nozzle assembly 71 for horizontal inkjet and a second ink absorbing assembly 72, which are symmetrically arranged on both sides of the vertical cloth;

[0059] The first nozzle assembly 61 and the second nozzle assembly 71 are arranged on both sides of the vertical cloth.

[0060] The first nozzle assembly 61 includes eight nozzles, which are divided into two groups in a horizontal direction, and the two groups of nozzles are staggered up and down. The first ink suction assembly 62 includes eight suction nozzles corresponding to the nozzles.

[0061] In other embodiments, the nozzles can be freely arranged and combined in the longitudinal and transverse directions, as long as the nozzles and the suction nozzles can be individually matched one to one.

[0062] The main drying and heating assembly 410 includes infrared heating devices located on both sides of the vertical coil. The main drying and heating assembly 410 is located below the first guide roller 420, and the second drying and heating assembly 430 is a hot air flow generator.

[0063] The hot air flow generator includes two fans, which are arranged on the upper and lower sides of the cloth. The fans have heating elements such as heating wires, so the two fans blow hot air to both sides of the cloth.

[0064] Working principle: During the use of the present invention, a balance bar 220 is provided on one side of the discharge roller to ensure that the unprinted material passes between the active discharge roller and the passive discharge roller in a balanced and stable manner. A tensioning roller 320 is provided at the bottom of the double-sided printing head 310 to prevent the material from shaking and affecting the printing quality. The heating roller 330 acts on two points. One function is to prevent the material from shaking because the material is stretched and is easy to shake when feeding. The second function is to prevent contamination of ink. The drying component 400 composed of the main drying and heating component 410, a guide roller 420 and a second drying and heating component 430 improves the drying efficiency of the device and ensures the quality of the product. The isolation paper roller is used to prevent the problem of sticking of the reeled material after printing due to different materials.

[0065] Example 2, double-sided printing material collection and unloading structure, which is different from Example 1 as follows: Figure 6-Figure 8 A smoke exhaust mechanism 91 for suction is provided above a guide roller 420. The air suction port of the smoke exhaust mechanism 91 is arranged tilted downward, and the lower end of the smoke exhaust mechanism 91 is connected to an oil collecting trough 92; the smoke exhaust mechanism 91 as a whole is a range hood, the purpose of which is to absorb smoke and vaporized ink during the printing process of the equipment, keep the interior of the equipment clean, and prevent the internal components of the equipment from being contaminated by the vaporized ink.

[0066] A guide roller 420 contacts the driven sponge roller 93. Since the guide roller 420 will first contact the infrared-dried ink, a small amount of undried ink on the printed cloth will be attached to the guide roller 420, and the sponge roller can absorb the ink. Therefore, the sponge roller and the guide roller 420 are rotated in contact with each other, so that the ink on the guide roller 420 can be attached to the sponge roller.

[0067] The second drying and heating assembly 430 and the smoke exhaust mechanism 91 are located on both sides of the first guide roller 420; the second drying and heating assembly 430 includes two fans, one fan is located above the printed cloth, and the other fan is located below the printed cloth; the two fans are positioned up and down with the Figure 7 The displayed one shall prevail.

[0068] The lower fan blows air toward the outside of the device, and the upper fan blows air toward a guide roller 420;

[0069] Obviously, the upper fan blows air toward a guide roller 420, and the smoke exhaust mechanism 91 sucks air toward a guide roller 420, which can form a stable drying air flow; while the lower fan directly blows the air flow toward the outside of the equipment, so it is not easy to cause air flow chaos inside the equipment.

[0070] Although the present invention has been described above with reference to embodiments, various modifications may be made thereto and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as there are no structural conflicts, the various features of the embodiments disclosed herein may be combined with each other in any manner, and the omission of an exhaustive description of such combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. The double-sided printing material collection and unloading structure is characterized by: include: A frame (100) is provided with a loading assembly (200) and a receiving assembly (500) for vertically tensioning a roll of material to be printed. The material receiving assembly (500) is located on the top of one side of the frame (100). The loading assembly (200) is located at the bottom of one side of the frame (100). A printing assembly (300) for printing a vertical roll of material is provided in the middle of the inner cavity of the frame (100), and a drying assembly (400) located above the printing assembly (300) is provided at the top of the inner cavity of the frame (100); The printing assembly (300) includes a double-sided printing head (310), The double-sided printing head (310) comprises at least one front-side printing module (6) and at least one back-side printing module (7), and the front-side printing module (6) and the back-side printing module (7) have the same structure; The front printing module (6) comprises a first nozzle assembly (61) for horizontally spraying ink and a first ink absorbing assembly (62), wherein the first nozzle assembly (61) and the first ink absorbing assembly (62) are symmetrically arranged on both sides of the vertical roll; The reverse printing module (7) comprises a second nozzle assembly (71) for horizontally spraying ink and a second ink absorbing assembly (72), wherein the second nozzle assembly (71) and the second ink absorbing assembly (72) are symmetrically arranged on both sides of the vertical roll; The first nozzle assembly (61) and the second nozzle assembly (71) are arranged on both sides of the vertical coil; The first nozzle assembly (61) includes a plurality of nozzles arranged horizontally or vertically; the first ink suction assembly (62) includes a plurality of suction nozzles corresponding to the nozzles; The printing assembly (300) comprises a tensioning roller (320) and a heating roller (330), wherein the tensioning roller (320) and the heating roller (330) are respectively arranged at the bottom and the top of the double-sided printing head (310); The drying assembly (400) comprises a main drying and heating assembly (410), a first guide roller (420) and a second drying and heating assembly (430), wherein the main drying and heating assembly (410) is arranged above the printing assembly (300), and the first guide roller (420) and the second drying and heating assembly (430) are arranged at the top of the inner cavity of the frame (100); The vertical sections of the active unloading roller (240) and the guide roller (420) are on the same plane; The main drying and heating assembly (410) includes infrared heating devices located on both sides of the vertical coil. The main drying and heating assembly (410) is located below the first guide roller (420). The second drying and heating assembly (430) is a hot air flow generator. A smoke exhaust mechanism (91) for suction is provided above a guide roller (420), the air suction port of the smoke exhaust mechanism (91) is arranged obliquely downward, and the lower end of the smoke exhaust mechanism (91) is connected to an oil collecting tank (92); The second drying and heating assembly (430) and the smoke exhaust mechanism (91) are located on both sides of a guide roller (420); the guide roller (420) is in contact with a driven sponge roller (93); The second drying and heating assembly (430) includes two fans, one fan is located above the printed cloth, and the other fan is located below the printed cloth.

2. The double-sided printing material collecting and releasing structure according to claim 1, characterized in that: The rack (100) comprises a frame (110), wherein support legs (120) are provided at the four corners of the bottom of the frame (110), inspection doors (130) are provided on both sides of the front surface of the frame (110), and a man-machine operation panel (140) is provided on the right side of the frame.

3. The double-sided printing material collecting and unloading structure according to claim 1, characterized in that: The feeding assembly (200) comprises a feeding roller (210), a balance bar (220), a passive discharge roller (230) and an active discharge roller (240), wherein the balance bar (220) is arranged on one side of the feeding roller (210), and the passive discharge roller (230) and the active discharge roller (240) are arranged at the bottom of the inner cavity of the frame (100).

4. The double-sided printing material collecting and releasing structure according to claim 1, characterized in that: The receiving assembly (500) comprises a receiving roller (510), an active receiving roller (520), a passive receiving roller (530), an isolation paper roller (540) and two guide rollers (550), wherein the isolation paper roller (540) is arranged at the bottom of the receiving roller (510), the active receiving roller (520) and the passive receiving roller (530) are arranged on one side of the receiving roller (510), and the two guide rollers (550) are arranged on the top of one side of the frame (100).

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