Ink bag circulating device

Abstract

The utility model belongs to the technical field of printing equipment, and particularly relates to an ink bag circulating device which comprises an ink bag, the inner side of the lower end of the ink bag is arranged to be a V-shaped inclined plane and is provided with an ink inlet and an ink outlet, the ink inlet is provided with a circulating ink inlet needle, and the ink outlet is provided with an ink outlet needle. A circulating pump is arranged between the circulating ink inlet needle and the ink outlet needle; the length of the portion, extending into the ink bag, of the ink outlet needle is larger than that of the circulating ink inlet needle, and the ink inlet is located in the corner position of the V-shaped inclined face. According to the utility model, through the V-shaped inclined surface structure at the bottom of the ink bag, sediments are concentrated at the position of the ink inlet and are disturbed and stirred by the ink entering from the ink inlet in the circulating process, and the sediments are prevented from flowing out of the ink outlet needle by enabling the inlet position of the ink outlet needle to be higher than the outlet of the circulating ink inlet needle.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing equipment, and in particular relates to an ink bag circulation device. Background Art

[0002] The ink is prone to sedimentation after being left for a long time. The precipitated ink cannot be normally output through the nozzle of the printing device and will also damage the nozzle itself. Therefore, during the ink supply process, it is necessary to consider keeping the ink flowing continuously to prevent it from sedimentation.

[0003] Most of the ink bags used in current printing devices adopt a single ink outlet to supply ink, that is, a circulation pipeline is set outside the ink bag and the ink is transported by pumping, which causes precipitation of the ink stored in the ink bag. When circulating in the circulation pipeline, it cannot be guaranteed that the precipitation will be completely dissolved and eliminated, affecting the use effect. Utility Model Content

[0004] The utility model aims to solve the problem that most ink bags used in current printing devices adopt a single ink outlet to supply ink, and the precipitation in the ink cannot be completely eliminated by circulating outside the ink bag, which affects the use effect. An ink bag circulation device is provided, which reduces the generation of precipitation by circulating the ink, concentrates the precipitation at the ink inlet through the V-shaped inclined surface structure at the bottom of the ink bag, and disturbs and stirs the ink entering the ink inlet during the circulation process, and prevents the precipitation from flowing out of the ink outlet needle by making the inlet position of the ink outlet needle higher than the outlet of the circulating ink inlet needle.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] An ink bag circulation device comprises an ink bag, wherein the inner side of the lower end of the ink bag is arranged as a V-shaped inclined surface and is provided with an ink inlet and an ink outlet, the ink inlet is provided with a circulating ink inlet needle, the ink outlet is provided with an ink outlet needle, a circulation pump is arranged between the circulating ink inlet needle and the ink outlet needle, and the circulation pump drives the ink to circulate through the circulating ink inlet needle and the ink outlet needle, thereby reducing the generation of ink precipitation in the ink bag.

[0007] The length of the ink outlet needle extending into the ink bag is greater than the length of the circulating ink inlet needle extending into the ink bag, and the ink inlet is located at the corner of the V-shaped slope. On the one hand, the sediment generated in the ink bag is concentrated at the ink inlet position, and the ink entering the ink bag is used to impact and disturb it to further reduce the sedimentation. On the other hand, the sedimentation is avoided as much as possible from entering the ink outlet needle.

[0008] Preferably, a three-way valve is provided on the ink outlet needle, and the three-way valve is connected to the nozzle of the printing device. During printing, the three-way valve is adjusted to deliver ink to the nozzle for printing.

[0009] Preferably, the ink inlet and the ink outlet are symmetrically arranged at the lower end of the ink bag to ensure that the sediment in the ink bag is collected at the ink inlet during use.

[0010] Preferably, the ink bag is arranged in the ink cartridge.

[0011] Through the above technical solution, the beneficial effects of the utility model are:

[0012] 1. The utility model realizes the circulation of ink by pumping through the ink inlet and the ink outlet opened on the ink bag, thereby reducing the generation of precipitation in the ink bag.

[0013] 2. The utility model makes the ink outlet needle inlet higher than the circulating ink inlet needle outlet, so as to avoid the precipitation generated in the ink bag from flowing out through the ink outlet needle and causing the nozzle to be blocked.

[0014] 3. The utility model arranges a V-shaped slope at the bottom of the ink bag and an ink inlet at the bottom of the V-shaped slope, so that the sediment generated in the ink bag is gathered at the bottom of the V-shaped slope. During the circulation of the ink, the ink entering the ink bag through the circulating ink inlet needle produces a disturbing and stirring effect on the ink near the sediment, which promotes the dissolution and disappearance of the sediment, and further reduces the generation of sediment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] The numbers in the attached drawings are: 1 is an ink bag, 2 is a V-shaped slope, 3 is an ink inlet, 4 is an ink outlet, 5 is an ink circulating inlet needle, and 6 is an ink outlet needle. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0018] like Figure 1 As shown, this embodiment provides an ink bag circulation device, including an ink bag 1, wherein the ink bag 1 is evacuated and filled with ink, the ink bag 1 is made of PET material, the inner side of the lower end of the ink bag 1 is arranged with a V-shaped slope 2 and is provided with an ink inlet 3 and an ink outlet 4, the ink inlet 3 is provided with a circulating ink inlet needle 5, the ink outlet 4 is provided with an ink outlet needle 6, a circulating pump is arranged between the circulating ink inlet needle 5 and the ink outlet needle 6, under the action of the circulating pump, ink enters the ink bag 1 from the circulating ink inlet needle 5, and flows out of the ink bag 1 through the ink outlet needle 6, thereby realizing the circulation of ink and reducing the generation of precipitation.

[0019] The ink inlet 3 is located at the corner of the V-shaped slope 2. On the one hand, under the action of the V-shaped slope 2, the sediment generated in the ink bag 1 is gathered at the ink inlet 3. Under the action of the ink transported to the ink bag 1 by the circulating ink needle 5, the ink at the ink inlet 3 is disturbed and stirred to reduce the sediment. On the other hand, the ink inlet 3 and the ink outlet 4 are symmetrically arranged at the lower end of the ink bag 1, that is, the V-shaped slope 2 is not two slopes symmetrically arranged about its corners. The purpose of this arrangement is that the ink inlet 3 and the ink outlet 4 are respectively located in the middle of the left and right sides of the ink bag 1, so that in the process of circulating the ink, the disturbance generated by the inlet and outlet can be diffused as evenly as possible to the entire ink in the ink bag 1, thereby effectively reducing the generation and retention of sediment.

[0020] The ink bag 1 is arranged in the ink cartridge, and the ink cartridge is arranged vertically, even if the ink inlet 3 and the ink outlet 4 of the ink bag 1 are located at the lower end thereof, a three-way valve is arranged on the circulating ink inlet needle 5, and the three-way valve is connected to the nozzle of the printing device. When in use, ink is sprayed from the nozzle for printing, and the length of the ink outlet needle 6 extending into the ink bag 1 is greater than the length of the circulating ink inlet needle 5 extending into the ink bag 1, that is, the inlet of the ink outlet needle 6 is higher than the outlet of the circulating ink inlet needle 5, and there is a gap between the inlet of the ink outlet needle 6 and the V-shaped inclined surface 2. When in actual use, it is prevented that the precipitation generated in the ink bag 1 is discharged from the ink outlet needle 6 from the ink bag 1 and enters the nozzle to cause nozzle clogging.

[0021] When in use, the ink bag 1 is first evacuated, and then ink is input, the circulating ink inlet needle 5 and the ink outlet needle 6 are connected, and the ink bag 1 is set in the corresponding ink cartridge so that the ink inlet 3 and the ink outlet 4 of the ink bag 1 in the ink cartridge face downward, and the circulating ink inlet needle 5 and the ink outlet needle 6 are respectively connected to the circulation pump, and the three-way valve is simultaneously connected to the circulation pump outlet, the circulating ink inlet needle 5 and the nozzle of the printing device. Under normal circumstances, the three-way valve connects the circulation pump outlet and the circulating ink inlet needle 5, and the circulation pump is started to make the ink in the ink bag 1 in a circulating flow state to avoid precipitation as much as possible. When printing is required, the three-way valve is adjusted to connect with the nozzle, and the circulation pump transports the ink to the nozzle for spraying for printing.

[0022] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. An ink bag circulation device, characterized in that: The ink bag (1) comprises an ink bag (1), wherein the inner side of the lower end of the ink bag (1) is provided with a V-shaped inclined surface (2) and is provided with an ink inlet (3) and an ink outlet (4), the ink inlet (3) is provided with a circulating ink inlet needle (5), the ink outlet (4) is provided with an ink outlet needle (6), and a circulating pump is provided between the circulating ink inlet needle (5) and the ink outlet needle (6); The length of the ink outlet needle (6) extending into the ink bag (1) is greater than the length of the circulating ink inlet needle (5) extending into the ink bag (1), and the ink inlet (3) is located at a corner position of the V-shaped inclined surface (2).

2. An ink bag circulation device according to claim 1, characterized in that: The circulating ink supply needle (5) is provided with a three-way valve, and the three-way valve is connected to the nozzle of the printing device.

3. The ink bag circulation device according to claim 1, characterized in that: The ink inlet (3) and the ink outlet (4) are symmetrically arranged at the lower end of the ink bag (1).

4. The ink bag circulation device according to claim 1, characterized in that: The ink bag (1) is arranged in the ink cartridge.

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