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CN-224208252-U - Spray head

CN224208252UCN 224208252 UCN224208252 UCN 224208252UCN-224208252-U

Abstract

The disclosure relates to a spray head, comprising an ink supply port communicated with a flow dividing flow passage, a flow dividing flow passage configured to supply a body to be sprayed to the flow dividing flow passage via the ink supply port, a plurality of nozzles communicated with the flow dividing flow passage, and a flow passage adjusting unit comprising a first adjusting component and a second adjusting component which are mutually coupled, wherein the first adjusting component is arranged in the flow dividing flow passage and is configured to move along the extending direction of the flow dividing flow passage under the driving of the second adjusting component so as to adjust the accommodating space of the flow dividing flow passage. The spray head can adjust the width of the spray coating by adjusting the accommodating space of the flow dividing flow passage.

Inventors

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  • Request for anonymity
  • Request for anonymity

Assignees

  • 杭州宏华数码科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250411

Claims (12)

  1. 1. A spray head, comprising: An ink supply port communicating with the flow dividing flow passage, the liquid to be ejected being supplied to the flow dividing flow passage via the ink supply port; a flow dividing passage configured to supply a liquid to be sprayed to the plurality of nozzles; A plurality of nozzles communicating with the flow dividing flow passage; The runner adjusting unit comprises a first adjusting component and a second adjusting component which are mutually coupled, wherein the first adjusting component is arranged in the split runner and is configured to move along the extending direction of the split runner under the driving of the second adjusting component so as to adjust the accommodating space of the split runner.
  2. 2. The spray head of claim 1, wherein the first adjustment assembly comprises at least a sealing device that engages an inner wall of the flow diversion channel, the first adjustment assembly further configured to disable the flow of the liquid to be sprayed within the flow diversion channel to at least a portion of the plurality of nozzles by adjusting a position of the sealing device.
  3. 3. The spray head of claim 1, wherein each of the plurality of nozzles is a capillary tube, the second adjustment assembly comprises a screw, at least a portion of the screw is configured to extend into the flow diversion channel and is provided with a first external thread on an outer surface, the first adjustment assembly is sleeved on the screw, and at least a portion of an inner surface of the first adjustment assembly is provided with a first internal thread that mates with the first external thread, such that the first adjustment assembly is driven via rotation of the screw.
  4. 4. The spray head of claim 3 wherein said first adjustment assembly comprises: A nut including at least a first portion, an inner surface of the first portion being provided with the first internal thread, and And the sealing device is attached to the inner wall of the flow distribution flow passage and is configured to move along with the nut.
  5. 5. The spray head of claim 4 wherein the first adjustment assembly further comprises a screw sleeve disposed about at least a portion of the circumference of the screw, the screw sleeve coupled to the nut at a first end; the sealing device is sleeved on the periphery of the screw rod sleeve.
  6. 6. The spray head according to claim 4, wherein a limiting protrusion is provided on an outer surface of the screw sleeve, one end of the sealing means abuts against the nut, and the other end of the sealing means abuts against the limiting protrusion.
  7. 7. The spray head of claim 6 wherein the nut further comprises a second portion having an inner surface provided with a second internal thread, the second portion being closer to the sealing means than the first portion; The screw rod cover is provided with second internal thread matched with second external screw thread in the surface of first end.
  8. 8. The spray head of claim 3 wherein said second adjustment assembly further comprises: and a motor coupled to the screw and configured to drive the screw to rotate.
  9. 9. The head of claim 1, wherein the number of the flow channel adjusting units is two, and the two flow channel adjusting units are respectively arranged at two ends of the flow dividing flow channel.
  10. 10. The spray head of claim 1 wherein the cross-section of the flow diverter channel along the direction in which the flow diverter channel extends is non-circular and wherein the profile of the first adjustment assembly along the direction in which the flow diverter channel extends matches the shape of the cross-section.
  11. 11. The spray head according to claim 1, wherein the flow diversion channel is configured such that the liquid to be sprayed is output through the nozzle after being pressurized in the accommodating space of the flow diversion channel, and the difference in pressure of the liquid to be sprayed is within + -3% from each place in the accommodating space of the flow diversion channel when the liquid to be sprayed is output.
  12. 12. The spray head according to claim 1, wherein the number of the flow passage adjusting units is plural.

Description

Spray head Technical Field The present disclosure relates generally to inkjet printing technology and, in particular, to a spray head. Background When painting a target object (for example, a fabric) with a painting system for painting or painting the target object, it is necessary to equip the painting system with a head that matches the width of the target object. The target object may vary in breadth during the spraying process. At this time, a stop is required to replace the spray head for the spray system so as to be adapted to the breadth of the target object. Obviously, this mode of operation is inconvenient, resulting in a lower spray efficiency. In summary, in the conventional spray coating system, in order to adapt to the width of the target object, a suitable spray head needs to be replaced for the spray coating system, which is inconvenient to operate and has low efficiency. Disclosure of utility model The present disclosure provides a spray head that can adjust a spray width by adjusting an accommodation space of a flow diversion channel, can omit an operation of changing the spray head for a spray system in order to adapt to a width of a target object, and improves spray efficiency. According to an aspect of the present disclosure, there is provided a head including an ink supply port communicating with a flow dividing flow passage through which a body to be ejected is supplied to the flow dividing flow passage, a flow dividing flow passage configured to supply the body to be ejected to a plurality of nozzles, a plurality of nozzles communicating with the flow dividing flow passage, and a flow passage adjusting unit including a first adjusting assembly and a second adjusting assembly coupled to each other, the first adjusting assembly being disposed within the flow dividing flow passage and configured to be moved in a direction in which the flow dividing flow passage extends by driving of the second adjusting assembly to adjust an accommodating space of the flow dividing flow passage. In some embodiments, the first adjustment assembly includes at least a sealing device that engages an inner wall of the flow-splitting channel, the first adjustment assembly further configured to disable the passage of the liquid to be sprayed within the flow-splitting channel to at least a portion of the plurality of nozzles by adjusting a position of the sealing device. In some embodiments, each of the plurality of nozzles is a capillary tube, the second adjustment assembly includes a screw, at least a portion of the screw is configured to extend into the flow-splitting channel and is provided with a first external thread on an outer surface, the first adjustment assembly is sleeved on the screw, and at least a portion of an inner surface of the first adjustment assembly is provided with a first internal thread that mates with the first external thread such that the first adjustment assembly is driven via rotation of the screw. In some embodiments, the first adjustment assembly includes a nut including at least a first portion having an inner surface provided with the first internal thread, and a sealing device that engages an inner wall of the flow manifold and is configured to follow the movement of the nut. In some embodiments, the first adjustment assembly further comprises a screw sleeve disposed about at least a portion of the circumference of the screw, the screw sleeve coupled to the nut at the first end, and the sealing device disposed about the circumference of the screw sleeve. In some embodiments, a stop protrusion is provided on the outer surface of the screw sleeve, one end of the sealing device abuts the nut, and the other end of the sealing device abuts the stop protrusion. In some embodiments, the nut further comprises a second portion having an inner surface provided with a second internal thread, the second portion being closer to the sealing means than the first portion, the screw sleeve being provided with a second external thread on the outer surface of the first end which cooperates with the second internal thread. In some embodiments, the second adjustment assembly further includes a motor coupled to the screw and configured to drive the screw in rotation. In some embodiments, the number of the flow channel adjusting units is two, and the two flow channel adjusting units are respectively configured at two ends of the split flow channel. In some embodiments, the flow-splitting channel is non-circular in cross-section along the direction in which the flow-splitting channel extends, and the first adjustment assembly has a profile matching the shape of the cross-section along the direction in which the flow-splitting channel extends. In some embodiments, the flow diversion channel is configured such that the liquid to be sprayed is output via the nozzle after being pressurized in the accommodating space of the flow diversion channel, and the pressure difference of the liquid to be sprayed is