Ink supply device and ink-jet printer

Abstract

The utility model provides a printing ink supply device which comprises a first air pressure control valve, a first control switch and a printing ink storage bin, and the first air pressure control valve, the first control switch and the printing ink storage bin communicate with one another through a first compressed gas pipeline. The utility model further provides an ink-jet printer, the ink-jet printer comprises an ink-jet head and the ink supply device which are communicated with each other, the ink-jet printer further comprises a three-way valve, and the ink storage bin is communicated with a first inlet of the three-way valve through an air-ink mixing conveying pipe. According to the scheme, the replacement frequency of the ink box can be reduced, the ink box is suitable for long-term production, ink adding is convenient, and the production efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the printing of packaging bags, and in particular to an inkjet printer for printing. Background Art

[0002] After the powder product is put into the packaging bag, it is necessary to print the mark and date on the surface of the packaging bag. The printing operation can be completed using an inkjet printer. The inkjet printer has an ink delivery pipeline for delivering ink to the nozzle to complete the printing of the mark and date.

[0003] The ink cartridges that come with the printer have a small capacity, so when the production line output is large, they need to be replaced frequently. In addition, the original ink cartridges are installed in the printer housing, and the relevant fixed structure needs to be disassembled when replacing them, which is inconvenient and inefficient. Utility Model Content

[0004] The purpose of this application is to increase the ink storage capacity of the inkjet printer and support long-term production needs. In addition, it can simplify the replacement process and thus improve production efficiency.

[0005] To this end, according to one aspect of the present application, an ink supply device includes a first air pressure control valve, a first control switch and an ink storage bin, wherein the first air pressure control valve, the first control switch and the ink storage bin are connected to each other through a first compressed gas pipeline. The ink storage bin has an ink filling port. In addition, the ink storage bin also has a bypass valve and a bypass valve control switch connected to the bypass valve.

[0006] According to another aspect of the present application, a printer includes inkjet terminals connected to each other and the aforementioned ink supply device, wherein the printer also includes a three-way valve, and the ink storage tank is connected to the first inlet of the three-way valve.

[0007] The inkjet printer further comprises an ink pipeline cleaning device, and the ink pipeline cleaning device is connected to the second inlet of the three-way valve.

[0008] Furthermore, the ink pipeline cleaning device includes a compressed air switch, a second air pressure control valve, a second control switch and a detergent storage tank which are connected to each other through a second compressed gas pipeline, wherein the detergent storage tank is connected to the second inlet of the three-way valve.

[0009] The solution provided in the present application can reduce the replacement frequency of ink cartridges, is suitable for long-term production, and is convenient for adding ink, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram showing an embodiment of the present application.

[0011] 10 compressed air source, 100 ink supply device, 110 first air pressure control valve, 120 first control switch, 130 ink storage bin, 140 first compressed gas pipeline, 150 bypass valve, 160 bypass valve control switch, 200 ink pipeline cleaning device, 210 compressed air switch, 220 second air pressure control valve, 230 second control switch, 240 detergent storage tank, 250 second compressed gas pipeline, 300 spray terminal, 400 three-way valve DETAILED DESCRIPTION

[0012] The specific implementation of the present application is described below with reference to the accompanying drawings.

[0013] Reference Figure 1 According to one embodiment of the present application, an ink supply device 100 includes a first air pressure control valve 110 , a first control switch 120 , and an ink storage tank 130 , which are connected to each other through a first compressed gas pipeline 140 .

[0014] The compressed air source 10 is connected to the first air pressure control valve 110 to provide compressed air. The first control switch 120 may be a momentary control switch. When the momentary control switch is pressed, compressed air may enter the ink storage bin 130. The pressure of the compressed gas may be controlled by the first air pressure control valve, thereby adjusting the ink supply pressure.

[0015] The ink storage bin 130 has an ink filling port for adding ink. The ink storage bin 130 is also provided with a bypass valve 150 for connecting to the external atmosphere so that the air pressure in the ink storage bin is balanced. The bypass valve 150 is connected to the bypass valve control switch 160 and is connected to the compressed air source 10 through a pipeline. In this way, the compressed air provided by the compressed air source 10 and passing through the bypass valve control switch 160 can control the gas pressure in the ink storage bin.

[0016] According to another embodiment of the present application, an inkjet printer includes an inkjet terminal 300, the aforementioned ink supply device 100, and an ink pipeline cleaning device 200 that are connected to each other.

[0017] The inkjet printer further includes a three-way valve 400 having a first inlet, a second inlet and an outlet. The first inlet and the second outlet are respectively connected to the outlet. The ink storage tank 130 is connected to the first inlet of the three-way valve 400 through the first compressed gas pipeline 140, so that the ink can be transported to the inkjet station 300 under the action of compressed air. The ink pipeline cleaning device 200 is connected to the second inlet of the three-way valve to clean the ink pipeline of the inkjet station.

[0018] Furthermore, the ink pipeline cleaning device 200 includes a compressed air switch 210 , a second air pressure control valve 220 , a second control switch 230 , and a detergent storage tank 240 , which are connected to each other through a second compressed air pipeline 250 .

[0019] The detergent storage tank 240 is communicated with the second inlet of the three-way valve 400 through a pipeline.

[0020] When it is necessary to perform coding, the three-way valve is rotated to a position where the first inlet is connected to the outlet, so that ink can be delivered to perform coding. The first air pressure control valve is adjusted to obtain a suitable coding pressure to perform coding.

[0021] When it is necessary to clean the pipeline, the three-way valve is rotated to a position where the second inlet and the outlet are connected, and a pressurized cleaning agent can be input into the ink delivery pipeline for cleaning.

[0022] In the above description, the details of the technical solution of the present application are explained. However, those skilled in the art will appreciate that the present application is not limited to the specific details listed in the above embodiments, but may vary within the scope defined by the claims.

Claims

1. An ink supply device, characterized in that: The ink storage tank comprises a first air pressure control valve, a first control switch and an ink storage tank, wherein the first air pressure control valve, the first control switch and the ink storage tank are connected to each other through a first compressed gas pipeline.

2. The ink supply device according to claim 1, wherein: The ink storage tank has an ink filling port.

3. The ink supply device according to claim 1, wherein: The ink storage tank has a bypass valve and a bypass valve control switch communicated with the bypass valve.

4. A printer, characterized in that: An ink supply device as described in any one of claims 1 to 3, comprising inkjet terminals connected to each other, wherein the inkjet printer further comprises a three-way valve, and the ink storage tank is connected to the first inlet of the three-way valve.

5. The inkjet printer according to claim 4, characterized in that: It further comprises an ink pipeline cleaning device, wherein the ink pipeline cleaning device is connected to the second inlet of the three-way valve.

6. The inkjet printer according to claim 5, characterized in that: The ink pipeline cleaning device includes a compressed air switch, a second air pressure control valve, a second control switch and a detergent storage tank which are connected to each other through a second compressed gas pipeline, wherein the detergent storage tank is connected to the second inlet of the three-way valve.

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