CN109367241B

CN109367241B - Cleaning member, cleaning device, and cleaning method for cleaning nozzle of inkjet head

Info

Publication number: CN109367241B
Application number: CN201811331199.0A
Authority: CN
Inventors: 万强
Original assignee: Mianyang Beijing Oriental Optoelectronic Technology Co Ltd; BOE Technology Group Co Ltd
Current assignee: Mianyang Beijing Oriental Optoelectronic Technology Co Ltd; BOE Technology Group Co Ltd
Priority date: 2018-11-09
Filing date: 2018-11-09
Publication date: 2020-01-07
Anticipated expiration: 2038-11-09
Also published as: CN109367241A

Abstract

A cleaning member, a cleaning device, and a cleaning method for cleaning a nozzle of an inkjet head are provided. A cleaning member for cleaning nozzles of an inkjet head includes a plurality of cleaning sheets separated from each other and disposed in a stack, each cleaning sheet being configured to clean nozzles of the inkjet head, to reduce costs and improve productivity.

Description

Cleaning member, cleaning device, and cleaning method for cleaning nozzle of inkjet head

Technical Field

At least one example of the present disclosure relates to a cleaning member, a cleaning device, and a cleaning method for cleaning a nozzle of an inkjet head.

Background

An inkjet printing method is a commonly used patterning method. A part of the film layer in the Organic Light Emitting Diode (OLED) display device can be manufactured by adopting an ink-jet printing method. For example, the organic layer in the encapsulation layer of the OLED display device, the light emitting layer in the OLED, and the like can be manufactured by means of inkjet printing.

Disclosure of Invention

At least one example of the present disclosure provides a cleaning member for cleaning a nozzle of an inkjet head, including a plurality of cleaning sheets separated from each other and disposed in a stack, each cleaning sheet being configured to clean the nozzle of the inkjet head.

For example, the cleaning member further includes a plurality of ink permeation prevention films, each of which is located between adjacent cleaning sheets.

For example, the cleaning sheet includes a plurality of positioning holes extending through the cleaning sheet.

At least one example of the present disclosure also provides a cleaning device for cleaning a nozzle of an inkjet head, including:

a support portion comprising a support surface configured to support any of the cleaning members described above; and

a pressure part including at least two pressure units, the pressure part configured to press an edge of the cleaning member against the support part when the cleaning member cleans the nozzle of the inkjet head, so that a relative position of the cleaning member and the support part is maintained.

For example, the cleaning apparatus further comprises a support configured to support the pressure unit.

For example, the pressure section may be reversibly or rotatably connected to the stent.

For example, the pressure part is fixed to the holder, and the holder is rotatable.

For example, the cleaning device further includes a pickup portion configured to pick up and remove a used cleaning sheet.

For example, the cleaning device further includes a member that moves the pressure portion, the member being configured to move the pressure portion away after cleaning the nozzles of the inkjet head and before the pickup portion picks up the used cleaning sheet.

For example, the cleaning apparatus further includes a first driving part configured to drive the support part to move in a first direction perpendicular to the support surface.

For example, the cleaning apparatus further includes a second driving part configured to drive the support part to move in a second direction perpendicular to the first direction.

For example, the cleaning apparatus further includes a plurality of positioning posts disposed on the support surface and at an edge of the support surface.

At least one example of the present disclosure also provides a method for cleaning a nozzle of an inkjet head, including:

placing a cleaning member on a support surface of a support portion, the cleaning member including a plurality of cleaning sheets separated from each other in a direction perpendicular to the support surface and arranged in a stack;

the edge of the cleaning member is pressed against the support portion by a pressing portion,

the nozzles of the inkjet head are brought into contact with the cleaning sheet farthest from the support surface and relatively moved in a direction parallel to the support surface to clean the nozzles of the inkjet head.

For example, pressing the edge of the cleaning member against the support portion with the pressing portion includes: moving the support portion in a direction close to the pressure portion so that the pressure portion presses against an edge of the cleaning member.

For example, after cleaning the nozzles of the inkjet head, the support portion is moved in a direction away from the pressure portion to facilitate the pick-up and removal of the used cleaning sheet.

For example, the cleaning method may further include picking up and removing the used cleaning sheet, and removing the pressure part after cleaning the nozzles of the inkjet head and before picking up the used cleaning sheet.

For example, the cleaning member further includes a plurality of ink permeation prevention films, each of which is located between adjacent cleaning sheets and picks up an ink permeation prevention film adjacent thereto at the same time as picking up a used cleaning sheet.

Drawings

To more clearly illustrate the technical solutions of the examples of the present disclosure, the drawings of the examples will be briefly described below, and it is obvious that the drawings in the following description relate only to some examples of the present disclosure and are not limitative of the present disclosure.

FIG. 1A is a nozzle cleaning tool;

FIG. 1B is a schematic view of the nozzle cleaning tool shown in FIG. 1A cleaning an inkjet head;

fig. 2A is a side view of a cleaning member for cleaning a nozzle of an inkjet head according to an example of the present disclosure;

fig. 2B is a top view of a cleaning member for cleaning nozzles of an inkjet head according to an example of the present disclosure;

fig. 2C is a schematic view of a cleaning member cleaning nozzle for cleaning a nozzle of an inkjet head according to an example of the present disclosure;

fig. 2D is a schematic view of a cleaning member cleaning nozzle for cleaning a nozzle of an inkjet head according to an example of the present disclosure;

fig. 3 is a side view of a cleaning member for cleaning a nozzle of an inkjet head according to an example of the present disclosure;

fig. 4 is a plan view of a cleaning member for cleaning nozzles of an inkjet head according to an example of the present disclosure;

fig. 5 is a schematic view of a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure;

fig. 6 is a plan view of a cleaning device for cleaning nozzles of an inkjet head according to an example of the present disclosure;

fig. 7 is a plan view of a removing pressure part in a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure;

fig. 8A is a top view of a cleaning device for cleaning nozzles of an inkjet head according to an example of the present disclosure;

fig. 8B is a schematic view of a positioning column included in a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure;

fig. 9 is a schematic view of a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure;

fig. 10 is a schematic view of another perspective of a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure; and

fig. 11 is a schematic view of a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure.

Detailed Description

To make the objects, technical solutions and advantages of the disclosed examples clearer, the technical solutions of the disclosed examples will be clearly and completely described below with reference to the drawings of the disclosed examples. It is clear that the described examples are some, but not all examples of the present disclosure. All other examples, which can be obtained by a person skilled in the art without inventive effort based on the described examples of the present disclosure, are within the scope of protection of the present disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The inkjet printing apparatus includes an inkjet Head (Ink Print Head) including a Nozzle (Nozzle). During inkjet printing, the nozzles need to be wiped to clean the nozzles.

FIG. 1A is a nozzle cleaning tool. The nozzle cleaning tool shown in FIG. 1A is a wiping nozzle cleaning tool currently used by Kateeva equipment, named Blotter, which uses a rolled Blotter paper for nozzle cleaning. As shown in fig. 1A, the nozzle cleaning tool includes a supply wheel 011, a tension wheel 012, a first steering wheel 013, a second steering wheel 014, a recovery wheel 015. The supply wheel 011 is configured to provide blotting paper 01. The wound blotting paper 01 may be placed on the supply roll 011. The recovery wheel 015 is configured to recover used blotting paper. The first steering wheel 013 and the second steering wheel 014 are respectively configured to adjust the direction of the inkjet paper. At the top of the apparatus, an inkjet head protecting part 016 is provided, the inkjet head protecting part 016 being configured to protect the inkjet head during the process of cleaning the inkjet head with the blotting paper.

Fig. 1B is a schematic view of the nozzle cleaning tool shown in fig. 1A cleaning an inkjet head. During the movement of the blotting paper from right to left, the nozzles NZ on the ink-jet head 0101 can be cleaned. In fig. 1B, the nozzles NZ on the inkjet head 0101 face the blotting paper.

Fig. 1B shows a three-bank (Pack) inkjet head with one roll of blotting paper approximately 60 times cleaning the nozzles of one bank of inkjet heads, the blotting paper approximately $ 100/roll, for a total of 630 RMB/roll. In accordance with the need of performing a Purge operation on the inkjet heads after the ink (ink) is replaced and after the long wait (Idle), the nozzles need to be wiped and cleaned, the wiping and cleaning frequency is about 1 time/day, and each inkjet Printer (Printer) generally consists of 3 groups of inkjet heads, so that the usage amount of the ink absorbing paper is 3 sheets/day, the usage frequency is high, the cost is high, and the ink absorbing paper is completely monopolized by Kateeva. Moreover, such nozzle cleaning tools require an open chamber replacement of approximately 20 days, resulting in unnecessary wasted capacity.

Fig. 2A and 2B are a side view and a top view, respectively, of a cleaning member for cleaning a nozzle of an inkjet head according to an example of the present disclosure. As shown in fig. 2A and 2B, the cleaning member 10 for cleaning the nozzles of the inkjet head includes a plurality of cleaning sheets 101 that are separated from each other and are arranged in a stack. For example, the cleaning sheet includes at least one of a blotting paper and a dust-free cloth. For example, the dust-free cloth is a 10-grade dust-free cloth, but is not limited thereto. For example, in examples of the present disclosure, separate from each other means independent from each other. For example, each cleaning sheet 101 can be individually removed without changing the state of the other cleaning sheets. State invariant includes, for example, position invariant, not moved, or not affected. For example, each cleaning sheet may be cut to a predetermined size and stacked, or a plurality of cleaning sheets may be stacked and then cut in a direction perpendicular to the cleaning sheets to obtain a plurality of cleaning sheets separated from each other and stacked. At least one example of the present disclosure provides a cleaning member for cleaning a nozzle of an inkjet head, which can reduce cost and avoid a series of risks such as stock shortage and price increase due to monopoly of Kateeva.

Fig. 2C is a schematic view of a cleaning member cleaning nozzle for cleaning a nozzle of an inkjet head according to an example of the present disclosure. Each cleaning sheet 101 is configured to clean the nozzles NZ of the inkjet head 0101. As shown in fig. 2C, the nozzles NZ of the inkjet head 0101 are cleaned with the cleaning sheet 101 located at the uppermost layer. A schematic diagram of each cleaning sheet 101 cleaning one set (Pack) of inkjet heads 0101 is shown in fig. 2C, but of course, for efficiency, multiple sets (Pack) of inkjet heads 0101 may be cleaned per cleaning sheet 101. In fig. 2C, one nozzle NZ is opened in the inkjet head 0101, but the number of nozzles NZ provided in the inkjet head 0101 may be plural. For example, the cleaning of the nozzles may be achieved by relative movement of the inkjet head and the cleaning sheet. The relative movement of the inkjet head and the cleaning sheet may be achieved by moving at least one of the inkjet head and the cleaning sheet. The movement of the cleaning sheet may be achieved by moving a support portion that supports the cleaning sheet. In order to fix the cleaning sheet during the relative movement, the pressing part may be used to press the cleaning sheet, which will be described in detail in a subsequent cleaning apparatus.

Fig. 2D is a schematic view of a cleaning member cleaning nozzle for cleaning a nozzle of an inkjet head according to an example of the present disclosure. A schematic diagram of each cleaning sheet 101 cleaning three sets (Pack) of inkjet heads 0101 is shown in fig. 2D. In fig. 2D, one nozzle NZ is opened in each inkjet head 0101, but the number of nozzles NZ provided in the inkjet head 0101 may be plural.

Fig. 3 is a side view of a cleaning member for cleaning a nozzle of an inkjet head according to an example of the present disclosure. For example, the cleaning member 10 further includes a plurality of ink permeation prevention films 102 to prevent ink permeation. Each of the ink permeation prevention films 102 is located between adjacent cleaning sheets 101. As shown in fig. 3, a plurality of cleaning sheets 101 and a plurality of ink permeation preventing films 102 are alternately disposed with each other. When the inkjet head is cleaned using the uppermost cleaning sheet 101, the ink permeation preventing film 102 under the cleaning sheet 101 prevents the ink from permeating to prevent the cleaning sheet 101 under the cleaning sheet 101 from being contaminated. For example, the ink-impermeable membrane 102 may be made of a material that is non-ink-receptive. For example, the film 102 for preventing ink permeation may be a rubber film, but is not limited thereto. For example, the film 102 for preventing ink penetration may be a nitrile rubber film, but is not limited thereto.

Fig. 4 is a plan view of a cleaning member for cleaning a nozzle of an inkjet head according to an example of the present disclosure. For example, each cleaning sheet 101 includes a plurality of registration holes 1010 extending through the cleaning sheet 101 to facilitate registration of the cleaning sheet 101. Four positioning holes 1010 are shown in fig. 4, but the number of positioning holes 1010 is not limited to that shown in the drawing. For example, when the cleaning member 10 includes the ink permeation prevention film 102, each ink permeation prevention film 102 may also include a plurality of positioning holes that penetrate the ink permeation prevention film 102. For example, in a plan view of the cleaning member 10, a plurality of positioning holes in the film 102 for preventing ink penetration coincide with a plurality of positioning holes in the cleaning sheet 101. Four positioning holes 1010 located at four corners of the cleaning sheet 101 are shown in fig. 4, but the number of positioning holes 1010 is not limited to that shown in the drawing. For example, the cleaning sheet 101 includes at least two registration apertures 1010 on opposite sides thereof. For example, a plurality of registration holes 1010 of the cleaning sheet 101 can be placed in the positioning posts 208 (described in detail later, and shown in fig. 8B) to facilitate positioning of the cleaning sheet 101.

As shown in fig. 4, in a plan view of the cleaning member 10, the plurality of positioning holes 1010 are located inside the outer side surface s of the cleaning sheet 101.

Fig. 5 is a schematic view of a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure. As shown in fig. 5, the cleaning device includes a support portion 201 and a pressure portion 202.

As shown in fig. 5, the support portion 201 includes a support surface 201s, and the support surface 201s is configured to support any one of the cleaning members 10 described above. In fig. 5, an example is illustrated in which the supporting surface 201s is configured to support the cleaning member 10 including the plurality of cleaning sheets 101 and the plurality of ink permeation preventing films 102 arranged alternately.

As shown in fig. 5, the pressure part 202 includes at least two pressure cells. The pressure portion 202 is configured to press the edge of the cleaning member 10 against the support portion 201 when the cleaning member cleans the nozzles of the inkjet head, so that the relative positions of the cleaning member and the support portion 201 are kept constant. For example, as shown in fig. 5, the edge of the cleaning member 10 is in contact with the pressure portion 202. The edge of the cleaning element 10 is pressed against the support part 201 by the cooperation of the pressure part 202 and the support part 201, so that the position is fixed. Two

pressure units

2021 and 2022 are shown in fig. 5, and the number of pressure units is not limited to that shown in fig. 5.

The cleaning device provided by the disclosed example is simple in structure, and the cavity opening time is prolonged, so that the productivity is improved. For example, the cleaning device provided by the disclosed example can be used for putting about 200 pieces of 10-grade dust-free cloth or blotting paper at one time, can prolong the replacement period to about 65 days, and can reduce the number of open cavity replacement times by 2 times every 65 days and increase the open cavity production capacity by 10 hours or so compared with the cleaning tool shown in fig. 1.

In some examples, as shown in fig. 5, the cleaning device further includes a bracket 203, the bracket 203 being configured to support the pressure unit 2021 and/or 2022. For example, the bracket 203 shown in fig. 5 may be a sleeve around the periphery of the cleaning member 10. For example, the sleeve is not limited in material, color, and size. For example, the sleeve has dimensions greater than 7cm by 7 cm.

Of course, the bracket 203 shown in fig. 5 may have other configurations. For example, the rack 203 includes oppositely disposed sub-racks 2031 and 2032. For example, the sub-mount 2031 supports the pressure unit 2021, and the sub-mount 2032 supports the pressure unit 2022.

For example, as shown in fig. 5, the cleaning apparatus further includes a pickup portion 204, and the pickup portion 204 is configured to pick up and remove the used cleaning sheet 101. For example, the pickup portion 204 may employ vacuum chucks, and the number and type of the chucks are not limited to the vacuum chucks as long as the pick-and-place function is realized.

For example, as shown in fig. 5, the cleaning device further includes a part 205 of moving the pressure part, the part 205 of moving the pressure part being configured to move the pressure part 202 away after cleaning the nozzles of the inkjet head and before the pick-up part picks up the used cleaning sheet 101. For example, the pressure section 202 may be moved by directly moving the pressure section 202 using the member 205 for moving the pressure section, or by moving a holder for supporting the pressure section. For example, moving the pressure part 202 may also be achieved by moving the support part in a direction away from the pressure part. That is, after cleaning the nozzle, the pressure portion may be no longer pressed against the cleaning sheet by lowering the support portion.

For example, as shown in fig. 5, the cleaning device further comprises an elastic layer 209 between the support 201 and the cleaning member 10. The elastic layer 209 may serve to protect the inkjet head from damage due to the support member being too hard during cleaning of the inkjet head. For example, the elastic layer 209 may be made of a soft material. For example, the elastic layer 209 may be a sponge, but is not limited thereto.

Fig. 6 is a top view of a cleaning device for cleaning nozzles of an inkjet head according to an example of the present disclosure. In some examples, as shown in fig. 5 and 6, the pressure section 202 is rotatably coupled to the bracket 203. For example, the pressure portion 202 is rotatably connected to the bracket 203 in a plane parallel to the support surface 201 s. In fig. 6, a rectangular cleaning sheet is illustrated as an example, but not limited thereto.

For example, as shown in fig. 5 and 6, taking the pressure unit 2021 as an example, the pressure unit 2022 may be disposed in the same or similar manner as the pressure unit 2021. The pressing unit 2021 includes a rotating shaft 2211 provided on the holder 203/the sub-holder 2031, a rotatable member 2212 is connected to the holder 203/the sub-holder 2031 via the rotating shaft 2211, and a weight 2213 is provided on the rotatable member 2212.

In some examples, as shown in fig. 6, when the pressure part is pressed against the cleaning member 10, the pressure unit 2021 is located at the edge of the cleaning member 10 to facilitate cleaning of the inkjet head. For example, in nozzle cleaning, in a top view, the orthographic projection of the weight 2213 on the support surface falls within the orthographic projection of the cleaning member 10 on the support surface.

In some examples, as shown in fig. 6, the pressure unit 2022 includes a rotating shaft 2221 disposed on the bracket 203/sub-bracket 2032, the rotatable member 2222 is connected to the bracket 203/sub-bracket 2032 through the rotating shaft 2221, and the weight member 2223 is disposed on the rotatable member 2222.

In some examples, as shown in fig. 6, in order to facilitate the rotation of the pressure part, the rotation axis 2211 and the rotation axis 2221 are respectively located at the centers of the rotatable member 2212 and the rotatable member 2222, for example, a distance D between the rotation axis 2211 and the rotation axis 2221 is greater than half of the length L of the rotatable member 2212, and a distance D between the rotation axis 2211 and the rotation axis 2221 is greater than half of the length L of the rotatable member 2222. For example, the rotatable member 2212 and the rotatable member 2222 are equal in length.

As shown in fig. 6, when cleaning the nozzles NZ of the inkjet head 0101 with the cleaning sheet 101, the inkjet head may be moved along one side edge of the cleaning sheet 101 where no pressure portion is provided to the other side edge of the cleaning sheet 101 where no pressure portion is provided, so as to avoid the inkjet head 0101 from hitting the pressure portion. As shown in fig. 6, the inkjet head 0101 can be moved in a direction directed from the side S1 to the side S2 of the cleaning sheet 101. I.e. along the second direction y. In this case, the position of the support portion may be fixed, but is not limited thereto, and the support portion may also be moved in a direction parallel to the support surface and/or in a direction perpendicular to the support surface. When the nozzle cleaning is performed, the support portion moves in a direction parallel to the support surface. The figure also shows a third direction x, the second direction y and the third direction x being directions parallel to the support surface. The first direction may be a direction perpendicular to the support surface.

For example, as shown in fig. 5 and 6, the

weight members

2213 and 2223 are insertedly connected to the

rotatable members

2212 and 2222, respectively. As shown in fig. 5, the weight member 2213 includes two parallel members parallel to each other and a vertical member connecting the two parallel members and disposed perpendicular to the two parallel portions. For example, two parallel elements and a perpendicular element are integrally formed, but not limited thereto. For example, but not limited to, a vertical element connects the centers of two parallel elements.

In fig. 6, the

rotation shafts

2211 and 2221 are described as clockwise rotation as an example. Of course, the two rotation axes may also rotate counterclockwise, or one may rotate clockwise and the other may rotate counterclockwise.

In some examples, as shown in fig. 6, the bracket 203 may be disposed on the bottom frame 220 to support the bracket 203. For example, the bottom frame 220 may be disposed such that the position of the support 203 is not changed. In this case, the cleaning element can be driven to move along a direction perpendicular to the supporting surface by moving the supporting portion. Fig. 7 is a plan view of a removing pressure part in a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure. The pressure portion is removed to facilitate removal of the used cleaning sheet.

Fig. 8A is a top view of a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure. In some examples, as shown in fig. 8A, the pressure part 202 includes four pressure units 2020 disposed at four corners of the cleaning member 10.

Fig. 8B is a schematic diagram of a positioning column included in a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure. For clarity of illustration, a part of the structure is omitted in fig. 8B. As shown in fig. 8B, the cleaning apparatus further includes a plurality of positioning posts 208 provided on the supporting surface 201s and located at the edge of the supporting surface 201 s. Four locating posts 208 are shown in fig. 8B. The number of positioning posts 208 is not limited to that shown in fig. 8B. For example, a cleaning element with locating hole 1010 shown in FIG. 4 can be placed in the cleaning device shown in FIG. 8B, and locating hole 1010 is inserted into locating post 208 shown in FIG. 8B to facilitate locating and securing of the cleaning element.

Fig. 9 is a schematic view of a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure. As shown in fig. 9, the pressure section 202 includes a plurality of pressure cells 2023. The bracket 213 includes a main body 2131 and positioning grooves 2132 on the main body 2131, and each pressure unit 2023 is positioned in the positioning groove 2132 of the bracket 213 by a positioning bolt 2133.

Other ways of removing the pressure section are also possible in examples of the present disclosure. For example, the pressure part 202 may be reversibly connected to the bracket 203, and may be obtained by adjusting the structure shown in fig. 5. For example, reversible means that the pressure part can be removed by adjusting the angle between the pressure part 202 and the cleaning member 10. For example, when the angle between the pressure part 202 and the cleaning member 10 is 0 °, the pressure part 202 may press the edge of the cleaning member 10, and when the angle between the pressure part 202 and the cleaning member 10 is 180 °, the pressure part 202 is in a removed state. Reversible may mean, for example, that the angle of the pressure portion 202 from a plane parallel to the support surface 201s is adjustable. For example, the structure shown in fig. 5 may be adjusted such that the pressure portion 202 is fixed to the holder 203 (the holder 203 may be referred to as shown in fig. 5), and the holder 203 is rotatable. For example, the bottom frame 220 may be configured to allow the bracket to rotate about itself to facilitate removal of the pressure section. When the support is rotatable, the support may include a plurality of sub-supports, and the plurality of sub-supports may be disposed at a periphery of the support portion. For example, a plurality of sub-brackets may be correspondingly disposed at four corners of the supporting portion, but is not limited thereto.

For example, in examples of the present disclosure, the pressure part may not be provided on the bracket. The support may be a sleeve. In this case, after the cleaning member is placed on the support surface, the pressure portion is pressed against the edge of the cleaning member, and when the nozzle is cleaned, the pressure portion is removed to pick up the used cleaning member. For example, removing the pressure section may be accomplished by removing components of the pressure section. For example, a component that removes the pressure section may snap onto the pressure section, lift the pressure section upward, and then remove. After the used cleaning piece is removed, the supporting part can be moved upwards to enable the uppermost cleaning piece to exceed the upper surface of the sleeve, so that the ink jet head is prevented from being scratched by the sleeve in the process of cleaning the ink jet head.

Fig. 10 is a schematic view of another view angle of a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure. As shown in fig. 10, in order to facilitate the movement of the support 201 in a direction perpendicular to the support surface 201s, the cleaning device further includes a first driving part 31, the first driving part 31 being configured to drive the support 201 to move in a first direction z, the first direction z being perpendicular to the support surface 201 s. The first driving part 31 may include a cylinder, a motor, and the like.

For example, as shown in fig. 10, the first driving section 31 includes a first driving lever 311 and a first driving source 312. The first driving lever 311 may be connected to the support portion 201. For example, the first driving source 312 drives the first driving lever 311 to rotate so that the support portion 201 moves in a direction perpendicular to the support surface 201 s.

Fig. 11 is a schematic view of a cleaning device for cleaning a nozzle of an inkjet head according to an example of the present disclosure. For example, as shown in fig. 11, the cleaning device further includes a second driving part 32, and the second driving part 32 is configured to drive the support part 201 to move along a second direction y, which is perpendicular to the first direction z. The third direction x is perpendicular to the second direction y and the first direction z. Reference is made to the previous description with respect to the first direction z, the second direction y and the third direction x.

For example, as shown in fig. 11, the second driving section 32 includes a second driving lever 321 and a second driving source 322. The second driving lever 321 may be connected to the first driving part 31. For example, the second driving source 322 drives the second driving rod 321 to rotate so as to move the first driving portion 31 in a direction parallel to the supporting surface 201s, so that the supporting portion 201 moves in a direction parallel to the supporting surface 201s, thereby facilitating the cleaning of the inkjet head nozzle by moving the cleaning member 10, and further facilitating the relative movement of the cleaning member and the nozzle.

placing a cleaning member on a supporting surface 201s of the supporting portion 201, the cleaning member including a plurality of cleaning sheets 101 separated from each other in a direction perpendicular to the supporting surface 201s and arranged in a stack;

the edge of the cleaning member is pressed against the supporting portion 201 by the pressing portion 202,

the nozzles of the inkjet head are brought into contact with the cleaning sheet 101 farthest from the supporting surface 201s and moved relatively in a direction parallel to the supporting surface 201s to clean the nozzles of the inkjet head.

The cleaning method provided by the disclosed example can reduce cost, prolong the cavity opening time and improve the productivity.

For example, pressing the edge of the cleaning member against the supporting portion 201 with the pressing portion 202 includes: the support portion 201 is moved in a direction to approach the pressure portion 202 so that the pressure portion 202 presses against the edge of the cleaning member. For example, in this case, the pressure portion 202 is kept stationary, and the pressing of the edge of the cleaning member against the support portion 201 may be achieved by moving the support portion 201 in the first direction z, but is not limited thereto.

For example, after cleaning the nozzles of the inkjet head, the support portion 201 is moved in a direction away from the pressure portion 202 to facilitate the pick-up and removal of the used cleaning sheet 101. In this case, in order to save steps, the pressure part may not be removed, for example, by supporting the pressure part with a bracket. Since the supporting portion moves down, a certain distance is provided between the pressing portion 202 and the used cleaning member, and since the pressing portion 202 is correspondingly provided only at the edge of the cleaning member, the used cleaning sheet 101 can be picked up and removed only by the distance between the pressing portion 202 and the used cleaning member without removing the pressing portion 202. Of course, the pressure section may also be removed to further facilitate the pick-up and removal of the used cleaning sheet 101.

For example, the cleaning method further includes picking up and removing the used cleaning sheet 101, and removing the pressure portion 202 after cleaning the nozzles of the inkjet head and before picking up the used cleaning sheet 101.

For example, the cleaning member further includes a plurality of ink permeation prevention films 102, each ink permeation prevention film 102 is located between adjacent cleaning sheets 101, and picks up an ink permeation prevention film 102 adjacent thereto while picking up a used cleaning sheet 101.

For example, after cleaning, the cleaning sheet is placed into the waste collecting box by using the picking part, and the supporting part can be moved upwards for a certain distance, so that the cleaning sheet is slightly higher than the periphery of the support, and the phenomenon that the ink jet head is scratched when being used for wiping and cleaning is prevented.

For example, the inkjet head and the cleaning sheet are moved to move in opposite directions, or the cleaning sheet is fixed and the inkjet head is moved to clean the nozzles with relative movement between the cleaning sheet and the inkjet head.

For example, at least one of the inkjet head and the cleaning sheet is moved to clean the nozzle with relative movement between the cleaning sheet and the inkjet head. For example, nozzle cleaning may be achieved by moving only the inkjet head.

For example, when the cleaning device includes a plurality of positioning posts, the cleaning sheet may include a plurality of holes. The cleaning method further includes threading a plurality of holes in the cleaning sheet into the plurality of positioning posts to facilitate positioning of the cleaning sheet. The positioning columns and the holes can correspond to each other one by one.

For example, when the plurality of holes of the cleaning sheet are penetrated in the positioning columns, the used cleaning sheet can be moved in the direction away from the supporting part until the used cleaning sheet is separated from the plurality of positioning columns when the used cleaning sheet is picked up.

The cleaning method is further explained below.

An example of the present disclosure provides a method for cleaning a nozzle of an inkjet head, including:

step S101: placing a cleaning member on a supporting surface 201s of the supporting portion 201, the cleaning member including a plurality of cleaning sheets 101 separated from each other in a direction perpendicular to the supporting surface 201s and arranged in a stack;

step S102, pressing the edge of the cleaning piece on the supporting part 201 by using the pressure part 202, wherein the pressure part 202 is positioned on the bracket 203;

a step S103 of bringing the nozzles of the inkjet head into contact with the cleaning sheet 101 farthest from the support surface 201S, moving the support portion 201 in the second direction y, or moving the inkjet head in the second direction y, or moving the support portion 201 and the inkjet head at the same time, so that the inkjet head and the support portion are relatively moved in a direction parallel to the support surface 201S to clean the nozzles of the inkjet head;

step S104, after the nozzle cleaning is completed, removing the pressure part 202, for example, removing the pressure part 202 by rotating or flipping;

step S105, picking up the used cleaning sheet or picking up the used cleaning sheet and the film 102 for preventing ink from permeating below by using a picking member;

step S106, moving the pressure part 202 to a position right above the cleaning piece;

step S107, moving the support part upward in the first direction z until the pressure part 202 presses the edge of the cleaning member, thereby making preparation for the next nozzle cleaning.

step S201: placing a cleaning member including a plurality of cleaning sheets 101 separated from each other in a direction perpendicular to the supporting surface 201s and arranged in a stack on the supporting surface 201s of the supporting portion 201, and providing a sleeve around the supporting portion to protect the cleaning member;

step S202, pressing the edge of the cleaning piece on the supporting part 201 by using the pressure part 202;

step S203 of bringing the nozzles of the inkjet head into contact with the cleaning sheet 101 farthest from the support surface 201S, moving the support 201 in the second direction y, or moving the inkjet head in the second direction y, or moving the support 201 and the inkjet head at the same time, so that the inkjet head and the support are relatively moved in a direction parallel to the support surface 201S to clean the nozzles of the inkjet head;

step S204, after the nozzle cleaning is finished, lifting the pressure part 202 upwards to lift the pressure part 202 away from the surface of the cleaning member, so as to remove the pressure part 202;

step S205, picking up the used cleaning sheet or the used cleaning sheet and the film 102 for preventing ink from permeating below by using the picking-up piece;

step S206, moving the supporting part upwards along the first direction z to enable the cleaning sheet to be used to exceed the sleeve;

step S207, the pressure portion 202 is moved so that the pressure portion 202 presses the edge of the cleaning member, thereby being ready for the next nozzle cleaning.

step S301: placing a cleaning member on a supporting surface 201s of the supporting portion 201, the cleaning member including a plurality of cleaning sheets 101 separated from each other in a direction perpendicular to the supporting surface 201s and arranged in a stack;

step S302, pressing the edge of the cleaning piece on the supporting part 201 by using the pressure part 202, wherein the pressure part 202 is fixed on the bracket 203;

a step S303 of bringing the nozzles of the inkjet head into contact with the cleaning sheet 101 farthest from the support surface 201S, moving the support portion 201 in the second direction y, or moving the inkjet head in the second direction y, or moving the support portion 201 and the inkjet head at the same time, so that the inkjet head and the support portion are relatively moved in a direction parallel to the support surface 201S to clean the nozzles of the inkjet head;

step S304, after the nozzle cleaning is finished, the pressure part 202 is moved downwards along the first direction z so that a set distance is reserved between the pressure part 202 and the used cleaning sheet;

step S305, picking up the used cleaning sheet or picking up the used cleaning sheet and the film 102 for preventing ink from permeating below by using the picking-up piece;

step S306, move the support part upwards in the first direction z until the pressure part 202 presses on the edge of the cleaning member, thereby making preparation for the next nozzle cleaning.

Features in the same example and in different examples of the disclosure may be combined with each other without conflict.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A cleaning device for cleaning a nozzle of an ink jet head, comprising:

a support portion including a support surface configured to support a cleaning member including a plurality of cleaning sheets separated from each other and arranged in a stack, each cleaning sheet being configured to clean a nozzle of the inkjet head, the cleaning member being configured to clean the nozzle of the inkjet head; and

2. The cleaning device of claim 1, wherein the cleaning member further comprises a plurality of ink-permeation preventing films, each ink-permeation preventing film being located between adjacent cleaning sheets.

3. The cleaning device of claim 1, wherein the cleaning sheet includes a plurality of positioning holes therethrough.

4. The cleaning device of claim 1, further comprising a bracket, wherein the bracket is configured to support the pressure unit.

5. The cleaning device of claim 4, wherein the pressure section is reversibly or rotatably connected to the bracket.

6. The cleaning apparatus of claim 4, wherein the pressure section is fixed to the bracket, the bracket being rotatable.

7. The cleaning device of any one of claims 1-6, further comprising a pick-up portion, wherein the pick-up portion is configured to pick up and remove a used cleaning sheet.

8. The cleaning device according to claim 7, further comprising a member that moves the pressure portion, wherein the member that moves the pressure portion is configured to move the pressure portion away after cleaning the nozzles of the inkjet head and before the pickup portion picks up the used cleaning sheet.

9. The cleaning apparatus defined in any one of claims 1-6, further comprising a first drive portion, wherein the first drive portion is configured to drive the support portion to move in a first direction that is perpendicular to the support surface.

10. The cleaning device of claim 9, further comprising a second drive portion, wherein the second drive portion is configured to drive the support portion to move in a second direction, the second direction being perpendicular to the first direction.

11. The cleaning apparatus as recited in any of claims 1-6, further comprising a plurality of positioning posts disposed on the support surface and at an edge of the support surface.

12. A method for cleaning a nozzle of an inkjet head, comprising:

13. The method of claim 12, wherein pressing the edge of the cleaning member against the support portion with a pressing portion comprises: moving the support portion in a direction close to the pressure portion so that the pressure portion presses against an edge of the cleaning member.

14. A method according to claim 12 or 13, wherein after cleaning the nozzles of the ink jet head, the support portion is moved away from the pressure portion to facilitate pick-up and removal of a used cleaning sheet.

15. The method according to claim 12 or 13, further comprising picking up and removing a used cleaning sheet, and removing the pressure portion after cleaning the nozzles of the inkjet head and before picking up the used cleaning sheet.

16. The method of claim 12 or 13, wherein the cleaning member further comprises a plurality of ink permeation prevention films, each of which is positioned between adjacent cleaning sheets and picks up an ink permeation prevention film adjacent thereto at the same time as picking up a used cleaning sheet.