Coating and picture integrated printing equipment

Abstract

The utility model discloses coating and picture integrated printing equipment. The equipment comprises a cloth reel, a cleaning sticky roller group, a heat knife, a plurality of passing rollers, a first cloth pressing roller, a cloth conveying roller, a printing trolley, a color development box, a cloth outlet roller and a second cloth pressing roller which are arranged in sequence, the printing trolley is provided with front and back two groups of nozzles; the two groups of nozzles on the printing trolley are respectively a coating printing nozzle group and a picture printing nozzle group, and the coating printing nozzle group can print cloth before the picture printing nozzle group. When the digital printing device is used for carrying out digital printing on the flex banner, coating printing is firstly carried out, the coating is synchronously subjected to pre-drying treatment, and then a picture required by a user is printed; according to the utility model, the processing period is effectively shortened, intermediate links are reduced, the production cost is greatly reduced, and a solution is provided for the contradiction between batch production and low-cost investment.

Description

Technical Field

[0001] This utility model belongs to the field of digital printing technology, and in particular relates to a coating and image integrated printing device. Background Technology

[0002] The coating on the digital printing cloth is crucial, primarily in the following ways: First, it enhances ink absorption and penetration, ensuring even ink adhesion and controlling penetration depth to guarantee clear, complete prints without ink bleeding. Second, it improves color performance, restoring colors, increasing saturation, and expanding the color gamut for more vivid and realistic prints. Third, it protects the printing cloth, providing waterproof, moisture-proof, UV-resistant, and abrasion-resistant properties, extending its lifespan. Fourth, it improves physical properties, enhancing flexibility for easier folding and installation, and improving flatness to provide a good foundation for printing and ensure print quality.

[0003] However, not all printing cloths have a coating. Commercial printing cloths commonly used for digital printing, such as inkjet cloths and photo cloths, have a coating; however, some simple printing cloths used for temporary displays where high-quality printing is not required, or natural fiber cloths like pure cotton cloth, may not have a coating. In these cases, users need to decide whether to coat the cloth according to their needs.

[0004] However, in practical applications, there is a conflict between batch size and cost when coating fabrics. If fabric mills produce uncoated fabrics, while some users only require small batches of coated fabric, this supply-demand mismatch can cause many problems for users. They may face the cumbersome process of finding additional coating services, which not only consumes time and energy but also leads to a significant increase in costs due to small-batch processing, making an already simple need complicated. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated coating and image printing device, which realizes an integrated process of coating printing and image printing.

[0006] The technical solution adopted by this utility model is as follows: an integrated coating and image printing device, comprising a cloth roll, a cleaning and adhesive roller group, a hot knife, a first pressure roller, a cloth feed roller, a printing carriage, a color box, a cloth output roller, and a second pressure roller arranged in sequence; several guide rollers are provided between the cleaning and adhesive roller group, the cloth feed roller, the printing carriage, the first pressure roller, the color box, and the cloth output roller for cloth turning; the printing carriage is provided with two sets of nozzles, front and rear; the two sets of nozzles on the printing carriage are respectively a coating printing nozzle group and an image printing nozzle group, and the coating printing nozzle group can print on the cloth before the image printing nozzle group.

[0007] Furthermore, a coating printing platform is inclinedly arranged below the coating printing nozzle group, and an image printing platform is inclinedly arranged below the image printing nozzle group.

[0008] Furthermore, a coating electric heating plate is provided below the coating printing platform.

[0009] Furthermore, the printing carriage may be a split structure, with each independent split structure having a set of nozzles.

[0010] Furthermore, a sensor is provided next to the fabric roll to detect the roll diameter, and the fabric tension during printing is controlled by the detected roll diameter.

[0011] Furthermore, the printing platform is equipped with an ink extraction device.

[0012] The beneficial effects of this utility model are as follows: When using this utility model to digitally print on inkjet cloth, the coating is printed first, and the coating is pre-dried simultaneously, followed by printing the image required by the user; this utility model effectively shortens the processing cycle, reduces intermediate links, and greatly reduces production costs, providing a solution to the contradiction between mass production and low-cost investment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a diagram illustrating the use of a hot scalpel to remove wrinkled edges from fabric.

[0015] Figure 3 A schematic diagram of a printing car structure;

[0016] Figure 4 This is a schematic diagram of another structure for the printing car;

[0017] Figure 5 This is a flowchart of the printing process in this utility model;

[0018] In the diagram: 1-Second pressure roller, 2-Outlet roller, 3-Seventh pass roller, 4-Sixth pass roller, 5-Color box, 6-Second pass roller, 7-Hot knife shaft, 8-First pass roller, 9-Hot knife, 10-Fabric roll, 11-Fabric roll shaft, 12-First cleaning and adhesive roller group, 13-Sensor, 14-Second cleaning and adhesive roller group, 15-First pressure roller, 16-Fabric feed roller, 17-Printing carriage, 17A-Image printing nozzle group, 17B-Coating printing nozzle group, 18-Coating printing platform, 19-Coating electric heating plate, 20-Image printing platform, 21-Fourth pass roller, 22-Fifth pass roller, 23-Printing cloth, 24-Third pass roller. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, this utility model is an integrated coating and image printing device, including a cloth roll 11, a first cleaning and adhesive roller group 12, a second cleaning and adhesive roller group 14, a hot knife 9, a first pressure roller 15, a feed roller 16, a printing carriage 17, a color box 5, a cloth output roller 2, a second pressure roller 1, and several passing rollers arranged in sequence.

[0021] An uncoated fabric roll 10 is mounted on a fabric roll shaft 11, which is driven by an AC servo motor. The motor rotates the fabric roll shaft 11 via a gear reducer. The AC servo motor operates in torque mode, and the fabric roll diameter is detected by a sensor 13 located next to the fabric roll shaft 11, thereby achieving precise tension control during fabric unloading.

[0022] The uncoated inkjet fabric 23 passes through the first cleaning adhesive roller group 12 and the second cleaning adhesive roller group 14. These two sets of adhesive rollers remove short and broken fibers from the inkjet fabric 23, preventing these fibers from affecting the color rendering of the subsequent printed image. Then, at the first pass roller 8, hot blades 9 distributed at both ends remove wrinkles and uneven areas from the fabric edges. The hot blades 9 at both ends are controlled by the hot blade shaft 7 for raising and lowering. Figure 2 As shown.

[0023] After the above treatment, the inkjet fabric 23 passes through the second guide roller 6 and the third guide roller 24 to reach the feed roller 16. The feed roller 16 is driven by an AC servo motor through a reducer. At the same time, the first pressure roller 15 applies appropriate pressure to the inkjet fabric 23 on the feed roller 16 to ensure the accuracy of the inkjet fabric in the stepping direction during the printing process.

[0024] The coating and printing of the inkjet fabric, which passes through the fabric roller 16, are both handled by the printing carriage 17. For example... Figure 3 As shown, the printing carriage 17 is equipped with an image printing nozzle group 17A responsible for image printing and a coating printing nozzle group 17B for printing the coating of the inkjet cloth, which are located at the top and bottom respectively. The coating printing nozzle group 17B below can print on the inkjet cloth before the image printing nozzle group 17A. The upper and lower parts work together to complete the integrated printing process from coating to image on the inkjet cloth.

[0025] Since the printing carriage 17 is set at an angle, a coating printing platform 18 is also arranged at an angle below the coating printing nozzle group 17B, and a screen printing platform 20 is also arranged at an angle below the screen printing nozzle group 17A.

[0026] The coating printing process is carried out using a coating printing platform 18, beneath which a coating electric heating plate 19 is installed. During the coating printing process, the coating electric heating plate 19 heats and dries the printed coating. This step quickly evaporates the moisture or solvent in the coating, allowing it to cure rapidly and preventing problems such as smudging and fading during subsequent printing, thus ensuring the printing quality of the final image.

[0027] The printing platform 20 used for image printing is equipped with an ink splatter removal device. During image printing, the printhead ejects ink at high speed, which can cause ink splatter. The ink splatter removal device can promptly remove these scattered ink droplets, preventing them from falling onto the image being printed and ensuring that the image remains clear.

[0028] like Figure 4 As shown, the printing carriage in this utility model can also be used in another way. The image printing nozzle group 17A and the coating printing nozzle group 17B are respectively arranged on two printing carriages. As long as the process of printing the coating first on the uncoated cloth and then printing the image is followed, regardless of the configuration of the printing carriage, it falls within the protection scope of this utility model.

[0029] The printed fabric 23 passes through the fourth roller 21 and the fifth roller 22 before entering the color development box 5. Inside the color development box 5, the fabric undergoes color development at a high temperature, allowing the colors to fully develop and stabilize. Subsequently, the color-developed fabric passes through the sixth roller 4 and the seventh roller 3, finally reaching the output roller 2 and the second pressure roller 1, thus completing the entire printing process and outputting the finished fabric.

[0030] Based on the above description, the printing process of this device is as follows: Figure 5 As shown. Regardless of the layout used by the device, as long as the printing method is the same... Figure 5 The demonstrated process is completely identical, covering the complete steps from fabric roll cleaning, hot knife cutting, coating printing and drying, image printing, color development to fabric output, all of which are protected by this utility model.

Claims

1. A coating and image integrated printing device, characterized in that: The device includes, in sequence, a fabric roll, a cleaning and adhesive roller assembly, a hot knife, a first pressure roller, a feed roller, a printing carriage, a color-generating box, a fabric output roller, and a second pressure roller. Several guide rollers are provided between the cleaning and adhesive roller assembly, the feed roller, the printing carriage, the first pressure roller, the color-generating box, and the fabric output roller for fabric turning. The printing carriage has two sets of nozzles, one at the front and one at the back. The two sets of nozzles on the printing carriage are a coating printing nozzle set and an image printing nozzle set, and the coating printing nozzle set can print on the fabric before the image printing nozzle set.

2. The coating and image integrated printing device according to claim 1, characterized in that: A coating printing platform is arranged at an angle below the coating printing nozzle group, and a picture printing platform is arranged at an angle below the picture printing nozzle group.

3. The coating and image integrated printing device according to claim 2, characterized in that: A coating electric heating plate is provided below the coating printing platform.

4. The coating and image integrated printing device according to claim 1, characterized in that: The printing carriage may be a split structure, with each independent split structure having a set of nozzles.

5. The coating and image integrated printing device according to claim 1, characterized in that: A sensor is installed next to the fabric roll to detect the roll diameter, and the fabric tension is controlled during printing based on the detected roll diameter.

6. The coating and image integrated printing device according to claim 2, characterized in that: The printing platform is equipped with an ink extraction device.

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