CN218749991U - Ink-jet trolley and printer - Google Patents

Abstract

The utility model belongs to the technical field of printers, and discloses an ink-jet trolley and a printer, wherein a drainage piece of the ink-jet trolley is positioned at any end of an ink-jet trolley body along a first direction and is provided with a first surface and a second surface which are arranged oppositely, the first surface is close to a printing medium relative to the second surface, and the first surface and the printing medium are arranged at intervals; the drainage member is also provided with a first guide surface forming an included angle with the first direction, the first guide surface is provided with a first end and a second end connected with the second surface, the second end is close to the ink-jet trolley body relative to the first end along the first direction, and the height of the second end is between the height of the first end and the height of the upper surface of the ink-jet trolley body, so that when the ink-jet trolley moves, air flow at the first end can flow to the second end under the guide of the first guide surface, and excessive air flow is prevented from entering between the ink-jet trolley and a printing medium; in addition, the air current can not receive too much resistance when being guided by first guide face and flow to the second end, and drainage effect is better.

Description

Ink-jet trolley and printer

Technical Field

The utility model relates to a printer technical field especially relates to inkjet dolly and printer.

Background

The ink jet printer prints characters or patterns on a print medium by ejecting ink droplets from an ink jet carriage, and particularly, the ink jet carriage and the print medium are arranged at intervals and reciprocate relative to the print medium, and the ink droplets are ejected during the movement.

In order to promote ink jet printer's printing speed, the rate of motion of inkjet dolly is higher and higher, and the inkjet dolly of high-speed motion can produce the air current, if the air current gets into between inkjet dolly and the print media, can influence the drippage of ink droplet, leads to the ink droplet to fall the precision and take place the error, and the drop is inaccurate, and then influences the printing effect.

In order to solve the problem, the early patent with application number 201420324001.7 provides an air guide cover of an ink jet vehicle, the air guide cover is connected with the ink jet vehicle and is provided with an arc-shaped side surface, when the ink jet vehicle moves, the arc-shaped side surface can guide part of air flow to pass through the air guide cover from the upper part of the air guide cover and can not enter the space between the ink jet vehicle and a printing medium, and the influence of the air flow on the dropping of ink drops can be avoided. However, the following problems still exist with this solution:

1. in the scheme, the air guide cover is as high as the inkjet vehicle and has the same width, so that the volume of the air guide cover is larger;

2. although the air guide cover is provided with the arc-shaped side face, the ink jet vehicle has a certain height, and the air flow blowing towards the arc-shaped side face of the ink jet vehicle needs to be guided to a higher position to be separated from the arc-shaped side face, so that the air flow is difficult to pass through the arc-shaped side face, and more air still enters between the ink jet vehicle and a printing medium.

SUMMERY OF THE UTILITY MODEL

According to the utility model discloses an aspect, the utility model provides an inkjet dolly to the inkjet dolly of high-speed motion can produce the air current among the solution prior art, and the air current can lead to the ink droplet placement inaccurate, and sets up the problem that the wind scooper of height wait width still can't effectively guide the air current with the inkjet car.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the ink-jet trolley comprises an ink-jet trolley body, wherein the ink-jet trolley body can reciprocate along a first direction relative to a printing medium; it is characterized by also comprising:

the drainage member is positioned at any end of the ink-jet trolley body along a first direction, the drainage member is provided with a first surface and a second surface which are oppositely arranged, the first surface is close to the printing medium relative to the second surface, the first surface and the printing medium are arranged at intervals, the drainage member is also provided with a first guide surface, the first guide surface forms an included angle with the first direction and is provided with a first end and a second end connected with the second surface, the second end is close to the ink-jet trolley body relative to the first end along the first direction, and the height of the second end is positioned between the height of the first end and the height of the upper surface of the ink-jet trolley body.

As a preferable aspect of the inkjet cart, the drainage member has a drainage portion, the drainage portion includes a drainage hole, the drainage hole has a first opening and a second opening, the first opening is located on the first surface, and the second opening is located on the second surface.

As a preferable aspect of the inkjet carriage, the second opening is close to the inkjet carriage body with respect to the first opening.

As a preferable scheme of the inkjet trolley, the drainage part comprises a plurality of drainage holes, the drainage holes are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

As a preferable mode of the inkjet cart, the drainage part is provided with a plurality of drainage holes, and the diameter of the drainage hole of the drainage part close to the first guide surface is larger than the diameter of the drainage hole of the drainage part far from the first guide surface.

As a preferable aspect of the inkjet carriage, the first guide surface has an arc shape.

As the preferred scheme of the ink jet trolley, the drainage member is further provided with a second guide surface, the second guide surface forms an included angle with the first direction and is provided with an air inlet end and an air outlet end, the air outlet end is far away from the first guide surface relative to the air inlet end, and the air inlet end is connected with the second surface.

As a preferable scheme of the inkjet trolley, the drainage member further comprises a windward surface located between the first surface and the first guide surface, the drainage member is provided with two drainage members, the two drainage members are respectively located at two ends of the inkjet trolley body along the first direction, and the first guide surfaces of the two drainage members are arranged in a back-to-back manner.

The ink-jet trolley further comprises an ink-jet plate connected to the bottom of the ink-jet trolley body, and the drainage member is arranged at any end of the ink-jet plate along the first direction.

The ink-jet trolley preferably further comprises a mounting part, wherein the mounting part is used for detachably connecting the ink-jet plate and the drainage member.

Preferably, the first surface (11) is flush with the lower surface of the ink jet plate (200). The utility model discloses still provide the printer, including above-mentioned inkjet dolly.

The utility model has the advantages that:

the utility model provides an ink jet dolly, the drainage piece of ink jet dolly is located the arbitrary end of ink jet dolly body along first direction to have relative first face and the second face that sets up, first face is close to print media for the second face, and first face sets up with the print media interval, thereby does not hinder the relative print media motion of ink jet dolly. The drainage piece still has the first guide face that is the contained angle with the first direction, first guide face has first end and the second end of being connected with the second face, along first direction, the second end is close to inkjet dolly body for first end, the height that highly is located first end of second end is between the height of the upper surface of inkjet dolly body, the height that is the second end is higher than first end, thereby when inkjet dolly moves, the air current that is located first end can flow to the second end under the guide of first guide face, and finally flow to the second face, and can not follow the below process of first face, avoid too much air current to get into between inkjet dolly and the print media, and then produce the influence to the drippage of ink droplet. In addition, the height of second end is less than the upper surface of inkjet dolly body to make the air current can not receive too much resistance when being guided by first guide face and flowing to the second end, the drainage effect is better.

The utility model discloses still provide the printer, the inkjet dolly of this printer can guide the air current flow direction second face, avoids the air current to exert an influence to the drippage of ink droplet. In addition, the air current can not receive too much resistance when being guided by first guide face, and the drainage effect is better.

Drawings

FIG. 1 is an axial schematic view of an inkjet cart according to an embodiment of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic front view of an ink jet carriage in an embodiment of the invention;

fig. 4 is an enlarged view at B in fig. 3.

In the figure:

100. an inkjet trolley body; 200. an ink jet plate; 300. a printing platform;

1. a drainage member; 11. a first side; 12. a second face; 13. the windward side; 14. a first guide surface; 15. a second guide surface; 16. a third surface; 17. an installation part;

2. a drainage hole;

3. and (4) a mounting piece.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

In order to improve the printing speed of the ink-jet printer, the moving speed of the ink-jet trolley is higher and higher, the ink-jet trolley moving at high speed can generate air flow, and if the air flow enters between the ink-jet trolley and a printing medium, the dropping of ink drops can be influenced, so that the ink drop points are inaccurate. In order to solve this problem, the prior art provides a wind scooper, which is connected to the inkjet vehicle and has an arc-shaped side surface, and the arc-shaped side surface can guide part of the airflow to pass through from above the wind scooper. However, in the scheme, the air guide cover is as high as and as wide as the ink jet vehicle, so that the air flow is still difficult to cross the arc-shaped side surface, and more air still enters between the ink jet vehicle and the printing medium.

In order to solve the above problems, the present embodiment provides an inkjet cart to solve the problems that in the prior art, an inkjet cart moving at a high speed generates an air flow, the air flow can cause inaccurate drop point of ink droplets, and the air guide cover having the same height and width as the inkjet cart can still not effectively guide the air flow.

FIG. 1 shows a schematic view of an inkjet cart in an embodiment of the present invention; FIG. 2 is an enlarged view at A in FIG. 1; FIG. 3 shows a schematic front view of an inkjet cart in an embodiment of the present invention; fig. 4 is an enlarged view at B in fig. 3. Referring to fig. 1-4, the inkjet carriage includes an inkjet carriage body 100, and the inkjet carriage body 100 is capable of reciprocating relative to the printing medium along a first direction, which is parallel to the horizontal plane in this embodiment, and the first direction is the CD direction in fig. 1 and 3. Optionally, the printing medium is laid on the printing platform 300 and attached to the printing platform 300, the printing platform 300 is spaced from the inkjet carriage, so that the inkjet carriage is spaced from the printing medium, in this embodiment, the printing platform 300 is parallel to the horizontal plane.

With continued reference to fig. 1-4, the inkjet carriage further includes a flow directing member 1, the flow directing member 1 is located at either end of the inkjet carriage body 100 along the first direction, the flow directing member 1 has a first side 11 and a second side 12 that are oppositely disposed, the first side 11 is adjacent to the print medium relative to the second side 12, and the first side 11 is spaced from the print medium so as not to impede movement of the inkjet carriage relative to the print medium. In this embodiment, the first surface 11 is disposed parallel to and spaced apart from the printing medium, and the second surface 12 is parallel to the first surface 11.

With continued reference to fig. 1-4, the flow directing member 1 further has a first guide surface 14, the first guide surface 14 being angled with respect to the first direction and having a first end and a second end connected to the second surface 12, the second end being adjacent to the ink jet carriage body 100 with respect to the first end along the first direction, the second end having a height between the height of the first end and the height of the upper surface of the ink jet carriage body 100, i.e. the second end having a height higher than the first end, gas flowing from the first end to the second end. Thereby when the inkjet dolly moves, for example drainage member 1 is located the one end of inkjet dolly body 100 along the D direction, when the inkjet dolly moves towards the D direction, to this drainage member 1, be located the air current of first end, if do not set up the gas that drainage member 1 can be extrudeed promptly, can flow to the second end under the guide of first guide face 14, and finally flow to second face 12, and can not follow the below process of first face 11, avoid too much air current to get into between inkjet dolly and the print media, and then produce the influence to the drippage of ink droplet. In addition, the height of the second end is lower than the upper surface of the ink-jet trolley body 100, so that the air flow is guided by the first guide surface 14 and does not receive excessive resistance when flowing to the second end, and the drainage effect is good.

Optionally, the flow-inducing element 1 further has a wind-facing surface 13 located between the first surface 11 and the first guiding surface 14, the wind-facing surface 13 being connected to a first end of the first guiding surface 14, the wind-facing surface 13 being at an angle to the first direction, in this embodiment the wind-facing surface 13 being perpendicular to the first direction.

With continued reference to fig. 1-4, the drainage member 1 has a drainage portion that includes drainage apertures 2, the drainage apertures 2 having a first opening located on the first face 11 and a second opening located on the second face 12. After the air flow passes through the first guide surface 14, the flow rate is increased, so that the air pressure above the second surface 12 is smaller, the air pressure below the first surface 11 is larger, and partial air can flow from the lower part of the first surface 11 to the upper part of the second surface 12 by arranging the drainage holes 2, so that the partial air flow is prevented from entering between the ink-jet trolley and a printing medium. That is, after the first guide surface 14 conducts the flow, the flow guiding holes 2 can conduct the secondary air guiding, and the air which enters between the first surface 11 and the printing platform 300 is guided out again, so that the flow rate of the air which enters between the ink jet trolley and the printing medium is further reduced. It will be appreciated that the majority of the gas flow is directed over the second face 12, both by the direction of the first guide face 14 and by the influence of the gas pressure on either side of the vent 2, and that although a small proportion of the gas flow is still between the ink-jet carriage and the print medium, the flow rate of this gas is already low and has little effect on the landing of ink drops.

With continued reference to fig. 1-4, the drainage apertures 2 have two alternative configurations. Specifically, the drainage hole 2 can extend in the vertical direction, and can effectively guide the air current below the first surface 11, while having a simple structure. Alternatively, the second opening is spaced from the first guide surface 14 relative to the first opening to facilitate airflow beneath the first face 11 into the drainage apertures 2 and towards the second face 12.

With continued reference to fig. 1-4, the drainage portion includes a plurality of drainage holes 2, and the plurality of drainage holes 2 are arranged at intervals along a second direction, which is perpendicular to the first direction. In this embodiment, the first direction and the second direction are both parallel to the horizontal plane. Thereby increasing the range of drainage through the plurality of drainage holes 2.

With continued reference to fig. 1-4, the gas flow increases in velocity after flowing past the first guide surface 14, and decreases gradually as the gas continues to flow, i.e., the gas flow velocity increases and the gas pressure decreases closer to the first guide surface 14. In order to accommodate the change in air pressure, the drainage portion is provided in plurality, and the diameter of the drainage hole 2 of the drainage portion near the first guide surface 14 is larger than the diameter of the drainage hole 2 of the drainage portion away from the first guide surface 14.

With continued reference to fig. 1-4, the flow-guiding member 1 further has a second guiding surface 15, the second guiding surface 15 forming an angle with the first direction and having an air inlet end and an air outlet end, the air outlet end being far away from the first guiding surface 14 with respect to the air inlet end, the air inlet end being connected to the second surface 12, so that the air flow having entered the second surface 12 is more easily guided to other positions. Preferably, the height of the air outlet end is higher than that of the air inlet end. In this embodiment, the flow guiding element 1 further has a third surface 16 parallel to the horizontal plane, and the air outlet end is connected to the third surface 16.

With reference to fig. 1 to 4, two drainage members 1 are provided, two drainage members 1 are respectively provided at two ends of the inkjet cart body 100 along the first direction, and windward surfaces 13 of the two drainage members 1 are arranged in a back-to-back manner. So that no matter how the ink-jet trolley moves, a drainage piece 1 can play a role in drainage.

With continued reference to fig. 1-4, the ink jet carriage further includes an ink jet plate 200 attached to the bottom of the ink jet carriage body 100, and the drain 1 is disposed at either end of the ink jet plate 200 in the first direction. The ink jet plate 200 has an ink jet head for ejecting ink droplets, and an ink jet hole for the ink droplets to pass through, and finally the ink droplets are landed on a printing medium, thereby completing ink jet printing. Alternatively, the projection of the inkjet carriage body 100 in the vertical direction is located within the projection range of the inkjet plate 200 in the vertical direction, and is spaced apart from the printing medium to form a space for passage of ink droplets. The existing ink-jet trolley is not provided with the drainage piece 1, so when the ink-jet trolley moves along the first direction, the air can be squeezed, because the projection of the ink-jet trolley body 100 along the vertical direction is located in the projection range of the ink-jet plate 200 along the vertical direction, the air squeezed by the ink-jet trolley body 100 can be blocked by the ink-jet plate 200 and cannot enter between the ink-jet plate 200 and a printing medium, but the air located on the side surface of the ink-jet plate 200 can possibly enter between the ink-jet plate 200 and the printing medium, and the dropping of ink drops is influenced. In the present embodiment, the flow guide member 1 is provided at either end of the ink jet plate 200 in the first direction so as to guide the part of the air flow.

With continued reference to fig. 1-4, the inkjet carriage further includes a mounting member 3, and the mounting member 3 is configured to be detachably connected to the inkjet plate 200 and to the flow guide member 1, and in particular to the flow guide member 1, so as to facilitate the detachment and installation of the flow guide member 1. Optionally, the gutter 1 further comprises a mounting portion 17 flush with the upper surface of the ink jet plate 200, the mounting portion 17 being connected to the mounting member 3 to facilitate mounting. Optionally, the third face 16 is flush with the upper surface of the ink jet plate 200, making the overall appearance of the ink jet carriage and ink jet plate 200 neat.

With continued reference to fig. 1-4, first face 11 is flush with the lower surface of inkjet plate 200. Thus, the interference on the air which is not guided out of the lower part of the first surface 11 is avoided as much as possible, the air can smoothly enter between the ink jet plate 200 and the printing medium, and the air flow can be prevented from generating large influence on the dropping of the ink drops.

The process of directing the gas flow by the inkjet cart in this embodiment will be described with reference to fig. 1-4. Wherein figure 4 shows the flow path of a portion of the gas.

When the ink-jet carriage moves relative to the printing platform 300, part of the air enters directly above the second face 12 via the first guide face 14, and at the same time, the air pressure above the second face 12 is reduced, and another part of the air below the first face 11 can be guided through the drainage holes 2 to reach above the second face 12 via the drainage holes 2. At this time, there may still be a portion of the gas that is not directed but between the ink jet plate 200 and the print medium, but the flow rate of this portion of gas is already low, and has less effect on the landing of ink droplets.

The embodiment also provides a printer comprising the ink-jet trolley. The ink-jet trolley of the printer can guide the air flow to the second surface 12, and the influence of the air flow on the dropping of ink drops is avoided. Further, the air flow is not subjected to excessive resistance when guided by the first guide surface 14, and the drainage effect is good.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (12)

1. An inkjet carriage comprising an inkjet carriage body (100), the inkjet carriage body (100) being reciprocally movable in a first direction relative to a print medium; it is characterized by also comprising:

the drainage member (1) is located at any end of the ink-jet trolley body (100) along a first direction, the drainage member (1) is provided with a first face (11) and a second face (12) which are arranged oppositely, the first face (11) is close to the printing medium relative to the second face (12), the first face (11) and the printing medium are arranged at intervals, the drainage member (1) is further provided with a first guide face (14), the first guide face (14) forms an included angle with the first direction and is provided with a first end and a second end connected with the second face (12), the second end is close to the ink-jet trolley body (100) relative to the first end along the first direction, and the height of the second end is between the height of the first end and the height of the upper surface of the ink-jet trolley body (100).

2. The inkjet trolley according to claim 1, characterized in that the drain (1) has a drain portion comprising a drain hole (2), the drain hole (2) having a first opening and a second opening, the first opening being located at the first face (11) and the second opening being located at the second face (12).

3. The inkjet carriage of claim 2, wherein the second opening is proximate to the inkjet carriage body (100) relative to the first opening.

4. The inkjet carriage according to claim 2, wherein the drain portion includes a plurality of the drainage holes (2), the plurality of the drainage holes (2) being arranged at intervals in a second direction, the second direction being perpendicular to the first direction.

5. The inkjet trolley according to claim 4, characterized in that the drainage portion is provided in plurality, and the diameter of the drainage hole (2) of the drainage portion near the first guide surface (14) is larger than the diameter of the drainage hole (2) of the drainage portion far from the first guide surface (14).

6. Inkjet carriage according to any of the claims 1-5, characterized in that the first guide surface (14) is arc-shaped.

7. Inkjet carriage according to any of claims 1-5, characterized in that the deflector (1) further has a second guide surface (15), the second guide surface (15) being angled in relation to the first direction and having an air inlet end and an air outlet end, the air outlet end being remote from the first guide surface (14) in relation to the air inlet end, the air inlet end being connected to the second surface (12).

8. The inkjet carriage according to any one of claims 1 to 5, characterized in that the flow directing member (1) further has a windward surface (13) between the first surface (11) and the first guide surface (14), and the flow directing member (1) is provided in two, two flow directing members (1) are respectively located at both ends of the inkjet carriage body (100) in the first direction, and the first guide surfaces (14) of the two flow directing members (1) are arranged in a back-to-back manner.

9. The inkjet carriage according to any one of claims 1 to 5, further comprising an inkjet plate (200) attached to a bottom of the inkjet carriage body (100), the flow directing member (1) being provided at either end of the inkjet plate (200) in the first direction.

10. Inkjet carriage according to claim 9, characterized in that it further comprises a mounting (3), said mounting (3) being intended for detachable connection of the inkjet plate (200) and to the drainage member (1).

11. Inkjet carriage according to claim 9, characterized in that the first face (11) is flush with the lower surface of the inkjet plate (200).

12. Printer characterized in that it comprises an inkjet carriage according to any of claims 1 to 11.

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