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Double-sided ink-jet printer

An inkjet printer, double-sided technology, applied in typewriters, printing devices, printing, etc., can solve the problems of long intervals between ink scraping, pattern damage, and high upgrade costs, so as to avoid poor cleaning effect, reduce relative movement, and save upgrades cost effect

Active Publication Date: 2021-12-03
BEIJING ZHONGDIAN YUANDE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Existing double-sided digital inkjet printers often set a suction platform in the printing area to absorb the printing medium to keep it flat, but the way of suction platform There are the following problems: the cost of the suction platform with high flatness is high; the technical difficulty of leveling the suction platform is high during installation; the contact area between the suction platform and the printing medium is large, and static electricity will be generated when the printing medium runs at high speed The absorption of ink droplets will lead to inaccurate drop points of ink droplets and affect the printing quality; when the surface of the printing medium has a special coating, due to the large contact area, the friction between the printing medium and the suction platform will damage the coating on the surface of the printing medium ;During double-sided printing, high-speed friction between the surface of the printed medium and the suction platform will also cause a certain degree of damage to the printed pattern
[0009]1) Existing printers cannot meet the upgrade requirements of printing equipment, and the upgrade cost is high and the speed is slow;
[0010]2) Set up a suction platform in the printing area to support and absorb the printing medium to keep it flat, but it has the advantages of high cost, difficult leveling, and static electricity. The problem of inaccurate ink drop point, damage to the surface coating of the printing medium, and damage to the pattern on the surface of the printed medium
[0011]3) The contact nozzle cleaning method is easy to scrape the particles from other parts into the normal nozzle holes, causing the normal nozzle holes to be blocked and affecting the life of the nozzle; Color crossing will occur when different color inks are used; the interval between two adjacent scraping inks is long, which affects printing efficiency;
[0012]4) The non-contact nozzle cleaning method cannot adapt to the height, tilt angle and lateral position of the nozzle, resulting in poor cleaning effect and affecting subsequent printing quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] A double-sided inkjet printer, with reference to Figure 1 to Figure 4 , Figure 10 , Figure 21 and Figure 22 As shown, the improvement is that it includes a printing unit; the printing unit includes a main frame 1; a feeding device is installed on the main frame 1 for supporting and conveying the printing medium, and the feeding device includes Several supporting rollers, the printing medium forms four printing areas under the support of the supporting rollers, which are respectively the first printing area, the second printing area, the third printing area, and the fourth printing area; Y-axis transmission device 3; the top of the Y-axis transmission device 3 is equipped with a printing carriage 2, and the printing carriage 2 moves forward to the top of the printing area under the drive of the Y-axis transmission device 3, and moves backward to The top of the nozzle maintenance area; the bottom of the printing cart 2 is equipped with a bottom plate, and the print...

Embodiment 2

[0074] On the basis of embodiment 1, with reference to Figure 20 and Figure 21 As shown, the support rollers include a first support roller 61, a second support roller 62, and a third support roller 63 installed on the left side of the main frame 1, and the support rollers also include a first support roller installed on the right side of the main frame 1. The fourth support roller 64, the fifth support roller 65, and the sixth support roller 66 on the side; the height of the first support roller 61 is lower than the height of the third support roller 63, and the second support roller 62 is located at the Between the first support roller 61 and the third support roller 63, and above the line connecting the first support roller 61 and the third support roller 63, the printing medium is on the first support roller 61, Under the support of the second supporting roller 62 and the third supporting roller 63, the adjacent first printing area and the second printing area are forme...

specific Embodiment approach

[0077] 1) Printing media layout method 1: such as Figure 21 As shown, the printing medium is wound up and then down under the action of the guide roller, and passes through the second printing area and the first printing area in sequence from right to left, and is turned over under the support of the guide roller below and then upwards. Go around and pass through the third printing area and the fourth printing area once from left to right. The printing medium is arranged in a V-shaped structure via guide rollers under the printing area. A drying device is provided on the side of the V-shaped. For drying the printed printing medium, the arrangement of V-shaped guide rollers makes the number of drying devices that can be set in the space the largest, and the drying area is the largest, making the drying effect better; the structural arrangement of each roller , so that the surface of the printing medium after printing is not in direct contact with the roller, but is in contact ...

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Abstract

The invention relates to a double-sided ink-jet printer. The double-sided ink-jet printer comprises a printing unit; the printing unit comprises a main frame; a feeding device is mounted on the main frame, the feeding device comprises a plurality of supporting rollers, and a printing medium forms four printing areas under the supporting of the supporting rollers; a Y-axis transmission device is arranged above the printing area; a printing trolley is driven by the Y-axis transmission device to move forwards to the position above the printing area and move backwards to the position above the nozzle maintenance area; a printing nozzle is mounted in the printing trolley, and the bottom surface of the printing nozzle is parallel to a printing medium below the printing nozzle; a constant-temperature secondary ink box is arranged above the printing nozzle; a nozzle maintenance device mounted below the Y-axis transmission device is arranged in the nozzle maintenance area; and an independent ink supply device is arranged behind the main frame. The double-sided ink-jet printer has the beneficial effects that the double-sided ink-jet printer can adapt to iterative upgrading of the printing function, the upgrading speed is high, the upgrading period is short, the upgrading cost is low, the nozzle cleaning effect is good, and the printing quality is high.

Description

technical field [0001] The invention relates to the technical field of inkjet printing equipment, in particular to a double-sided inkjet printer. Background technique [0002] Under the control of computers and other equipment, digital printers can realize regular and quantitative on-demand printing, satisfy personalized printing, and realize zero inventory. Digital printing has incomparable advantages over traditional printing, and has been more and more widely used in the printing field. In recent years, digital printers capable of double-sided printing have been used more and more in the book printing and magazine printing industries. [0003] For a high-yield and high-efficiency double-sided digital inkjet printer, its volume is very large, and the production cycle of this large digital printer is also very long. It takes several months from the procurement of parts to the finished product, and it is expensive and transportation costs It is also relatively high, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J3/60B41J2/21B41J2/175B41J2/165B41J11/04B41J29/02
CPCB41J3/60B41J2/2103B41J2/17513B41J2/17523B41J2/17553B41J2/17566B41J2/17596B41J2/16552B41J2/16538B41J2/165B41J11/04B41J29/02B41J2/1752
Inventor 单健王家远闫峂脱占贺单川
Owner BEIJING ZHONGDIAN YUANDE TECH CO LTD
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