CN113752679A - Scraper device and printing equipment - Google Patents

Scraper device and printing equipment Download PDF

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Publication number
CN113752679A
CN113752679A CN202111071090.XA CN202111071090A CN113752679A CN 113752679 A CN113752679 A CN 113752679A CN 202111071090 A CN202111071090 A CN 202111071090A CN 113752679 A CN113752679 A CN 113752679A
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CN
China
Prior art keywords
printing
doctor
printed
contact portion
shape
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Granted
Application number
CN202111071090.XA
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Chinese (zh)
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CN113752679B (en
Inventor
刘贤平
林生野
毛祚水
林寿
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Fuyao Glass Industry Group Co Ltd
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Fuyao Glass Industry Group Co Ltd
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Priority to CN202111071090.XA priority Critical patent/CN113752679B/en
Publication of CN113752679A publication Critical patent/CN113752679A/en
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Publication of CN113752679B publication Critical patent/CN113752679B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/44—Squeegees or doctors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0895—Machines for printing on curved surfaces not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/10—Screen printing machines characterised by their constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/50—Screen printing machines for particular purposes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)

Abstract

The invention discloses a scraper device and printing equipment, which comprise a contact part, wherein the contact part can deform under the action of external force so as to be matched with the shape of a surface to be printed of a piece to be printed. Above-mentioned scraper device and lithography apparatus are when using, according to treat the shape of the face of treating printing of printing piece, order about the contact site and take place to warp, the contact site after the deformation with treat the shape phase-match of the face of treating printing of printing piece, thereby make the contact site can with treat the laminating of printing otter board after, through printing otter board and the face of treating printing piece laminating, thereby treat the face of treating printing of printing piece and print, so, no matter treat that the camber of the face of treating printing of printing piece changes, the contact site can both accomplish and treat that the shape of the face of treating printing of printing piece matches, and then the realization is printed the face of treating printing of this piece of treating printing.

Description

Scraper device and printing equipment
Technical Field
The invention relates to the technical field of glass printing, in particular to a scraper device and printing equipment.
Background
The glass is printed with ink on its surface for aesthetic, masking or auxiliary bonding purposes, and the ink is typically printed on the glass surface using screen printing equipment and processes in conventional glass printing processes.
However, for curved glass, due to the structural characteristics of the curved glass, the curvature of the curved surface of the curved glass tends to change regularly or irregularly, and conventional printing equipment is generally only suitable for curved glass with curved surfaces in a single direction or curved glass with a small curved surface, but is difficult to be suitable for curved glass with curved surfaces in multiple directions, such as irregular change of curvature or large curvature.
Disclosure of Invention
Based on this, aiming at the problem that the traditional printing equipment is generally suitable for curved surfaces with curved surfaces in a single direction or curved glass with smaller curved surfaces but is difficult to be suitable for curved glass with curvature irregularly changing or curved glass with large curvature and other directions, the scraper and the printing equipment are provided, and the scraper and the printing equipment can be suitable for curved glass with curvature regularly changing or irregularly changing and are also suitable for curved glass with large curved surfaces and other directions.
The specific technical scheme comprises the following steps:
in one aspect, the present application relates to a squeegee device comprising a contact portion for contact engagement with a printing screen, the contact portion being arranged to be deformable under an external force to match a shape of a surface to be printed of a member to be printed.
Above-mentioned scraper is when using, according to treat the shape of the face of treating of printing piece, order about the contact site and take place to warp, the contact site after the deformation with treat the shape phase-match of the face of treating printing of printing piece, thereby make the contact site can with the laminating of printing otter board after, through printing otter board and the face of treating printing of treating the printing piece laminating, thereby treat the face of treating printing of printing piece and print, so, no matter how the camber of the face of treating printing of treating the printing piece changes, the contact site can both accomplish and treat the shape of the face of treating printing of printing piece and match, and then realize printing the face of treating printing of this piece.
The technical solution is further explained below:
in one embodiment, the contact portion is configured to bend under an external force to form a concave structure or a convex structure to match with the shape of the surface to be printed of the member to be printed.
In one embodiment, the contact portion is made of a deformable material.
In one embodiment, the scraper device further comprises a scraper body connected with the contact portion, and the scraper body is configured to deform under an external force to drive the contact portion to deform.
In one embodiment, the edge of the scraper body on the side far away from the contact part is provided with a notch.
In one embodiment, the number of the notches is multiple, and at least part of the notches are arranged at intervals along the length direction of the scraper body.
In one embodiment, a tooth-shaped portion is formed between every two adjacent notches, the tooth-shaped portions are arranged at intervals along the length direction of the scraper body, and at least part of the tooth-shaped portions are provided with installation portions used for being installed on installation bases corresponding to printing equipment.
In one embodiment, the blade body is provided with a through hole through a sidewall of the blade body.
In one embodiment, the number of the through holes is multiple, and at least some of the through holes are distributed in an array form in the length direction of the scraper body and the width direction of the scraper body.
In one embodiment, the doctor blade arrangement further comprises an intermediate layer, by means of which the doctor blade body is connected to the contact portion, the intermediate layer being arranged between the doctor blade body and the contact portion, the intermediate layer being deformable.
In one embodiment, the height of the contact portion is: 5mm-10mm, the shore hardness of the contact part is as follows: A60-A80.
In another aspect, the present application also relates to a printing apparatus comprising a doctor blade according to any of the preceding embodiments.
When the printing equipment is used, the printing equipment can be suitable for the curved surface to-be-printed piece with regularly or irregularly changed curvature, and is also suitable for the to-be-printed piece with a plurality of curved surfaces in different directions, such as a large curved surface.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.
Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale.
FIG. 1 is a schematic view of a scraper blade according to an embodiment;
FIG. 2 is a schematic view of an embodiment of a scraper blade with a convex curved configuration;
FIG. 3 is a schematic view of an embodiment of a curved concave scraper blade;
FIG. 4 is a schematic view of a structure of a doctor blade acting on a member to be printed in a concave shape according to an embodiment;
FIG. 5 is a schematic view of a structure in which a doctor blade is applied to a convex member to be printed in one embodiment;
FIG. 6 is a schematic diagram of an embodiment of a doctor blade printing a convex member to be printed along the X direction;
FIG. 7 is a schematic view of an embodiment of a doctor blade printing a convex member to be printed along the Y direction;
FIG. 8 is a schematic view of an embodiment of a doctor blade printing a member to be printed in a concave shape along the X direction;
FIG. 9 is a schematic diagram of an embodiment of a doctor blade printing a member to be printed in a concave shape along the Y direction.
Description of reference numerals:
10. a scraper device; 100. a contact portion; 200. a scraper body; 210. a notch; 220. a tooth-shaped portion; 230. an installation part; 240. a through hole; 300. an intermediate layer; 20. a screen plate; 30. and (5) a piece to be printed.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
For curved glass, due to the structural characteristics of the curved glass, the curvature of the curved surface of the curved glass tends to change regularly or irregularly, and conventional printing equipment is generally suitable for curved surfaces with curved surfaces in a single direction or curved glass with small curved surfaces, but is difficult to be suitable for curved glass with curved surfaces in multiple directions, such as irregular change of curvature or large curvature. Based on this, aiming at the problem that the traditional printing equipment is generally suitable for the curved surface with a single-direction curved surface or the curved surface glass with a smaller curved surface but is difficult to be suitable for the curved surface glass with multiple directions such as irregular change of curvature or large curvature, the scraper device 10 and the printing equipment are provided, and the scraper device 10 and the printing equipment can be suitable for the curved surface glass with regular change of curvature or irregular change of curvature and can also be suitable for the curved surface glass with multiple directions such as a large curved surface.
It should be noted that the squeegee assembly 10 and the printing apparatus can be applied not only to automotive glass, but also to printing curved glass in other vehicles or display devices. Of course, the doctor blade device 10 and the printing apparatus are not limited to be used for printing on glass medium surfaces, and may be applied to printing on ceramics, metals, plastics, etc., that is, to substances to be printed on curved surfaces having multiple directions like glass.
The following describes the specific structure of the doctor blade device 10 and the printing apparatus in the present application with reference to the member to be printed as the member to be printed 30.
Referring to fig. 1 to 4, a member to be printed 30 of the doctor apparatus 10 in an embodiment includes a contact portion 100, and the contact portion 100 contacts with the printing screen 20 during printing, and then acts on a surface to be printed of the member to be printed 30 through the printing screen 20.
Referring to fig. 2 and 3, the contact portion 100 is configured to be deformed by an external force to match the shape of the surface to be printed of the member to be printed 30. Wherein the external force may originate from a drive source in the printing apparatus. For example, fig. 2 shows a state where the contact portion 100 is deformed convexly by an external force, and the contact portion 100 may be applied to the member to be printed 30 having a convex shape. For example, fig. 3 shows a state where the contact portion 100 is deformed by an external force, and the contact portion 100 may be applied to the member to be printed 30 having a concave shape.
In some embodiments, the contact portion 100 is made of a deformable material. For example, the contact portion 100 is a rubber layer. Due to the characteristics of the rubber layer, the rubber layer can be driven to deform in use, and meanwhile, the rubber layer has good capability of recovering deformation after being deformed, so that after the scraper device 10 finishes printing, the contact part 100 can recover deformation under the action of elastic recovery force of the rubber layer, and the scraper device 10 can be applicable to printing of the to-be-printed members 30 in other shapes again.
Alternatively, the material of the contact portion 100 may be a rubber material such as polyurethane or polyester.
In some embodiments, the height of the contact 100 is: 5mm-10mm, the shore hardness of the contact part 100 is as follows: A60-A80. When the height and hardness of the contact portion 100 are within the above ranges, the contact portion 100 can be surely bent, for example, vertically bent, and the contact portion 100 can be completely attached to the printing screen 20 with a small amount of deformation in the bending direction L1 of fig. 1, and further, the curved surface-shaped material to be printed 30 can be attached to the printing screen 20.
Specifically, the height of the contact portion 100 may be: 5mm, 6mm, 7mm, 8mm, 9mm or 10 mm. The shore hardness of the contact portion 100 may be: a60 °, a70 ° or a80 °. The specific height of the contact portion 100 and the specific shore hardness of the contact portion 100 are selected according to requirements, and are not described in detail herein.
It can be seen that when the above scraper device 10 is used, according to the shape of the to-be-printed surface of the to-be-printed member 30, the contact portion 100 is driven to deform, the deformed contact portion 100 matches with the shape of the to-be-printed surface of the to-be-printed member 30, so that the contact portion 100 can be attached to the to-be-printed surface of the to-be-printed member 30 through the printing screen 20 after being attached to the printing screen 20, so as to print the to-be-printed surface of the to-be-printed member 30, regardless of the change of the curvature of the to-be-printed surface of the to-be-printed member 30, the contact portion 100 can be matched with the shape of the to-be-printed surface of the to-be-printed member 30, and further realize printing the to-be-printed surface of the to-be-printed member 30. Thereby, the doctor device 10 is made applicable to printing of a variety of curvature-varying members 30 to be printed.
The specific structure of the doctor apparatus 10 will be specifically described below with reference to the drawings.
Referring to fig. 2 and 3, in some embodiments, the blade device 10 further includes a blade body 200, the blade body 200 is connected to the contact portion 100, and the blade body 200 is configured to deform under an external force to deform the contact portion 100. In particular, the blade body 200 may be a deformable composite material or a single type of material. Preferably, the scraper body 200 is made of a silicone material.
The curved surface of the to-be-printed member 30 generally has concave-convex variation, and the contact portion 100 needs to be driven to deform up and down by driving the scraper body 200 to bend and deform up and down, so that the shape of the contact portion 100 is matched with the shape of the curved surface of the to-be-printed member 30. For some curved surface members to be printed 30 with large concave-convex variation range of the surface to be printed, the scraper body 200 needs to have large vertical bending range.
In order to achieve the large deformation of the scraper body 200, referring to fig. 2 and 3, in some embodiments, the edge of the scraper body 200 on the side away from the contact portion 100 is provided with a notch 210. Thus, when the blade body 200 is driven to bend and deform, the deformation direction is shown as L1 in fig. 1, and the notch 210 may become larger with the continuous bending and deformation of the blade body 200, so as to increase the bending range of the blade body 200.
In some embodiments, with continued reference to fig. 1, the number of the notches 210 is multiple, and at least some of the notches 210 are arranged at intervals along the length direction of the blade body 200, wherein the length direction of the blade body 200 is shown as L2 in fig. 1. As such, the plurality of notches 210 are provided in the length extending direction of the blade body 200, so that the bending width of the blade body 200 can be further increased.
Specifically, the notch 210 may be a U-shaped notch, a V-shaped notch, a semicircular notch, or other arc-shaped notches. The shape, size and number of the notches 210 can be set as required. For example, referring to fig. 1, in some embodiments, the number of the notches 210 is multiple, and the edge of the side of the scraper body 200 away from the contact portion 100 is in a tooth shape.
When the doctor apparatus 10 is used, it needs to be driven by an external force to contact the printing screen 20 through the contact portion 100 to print ink on the surface to be printed of the member to be printed 30. Therefore, the blade body 200 needs to be mounted on the mounting base of the corresponding printing apparatus.
For example, referring to fig. 1, in some embodiments, a tooth-shaped portion 220 is formed between two adjacent notches 210, at least some of the tooth-shaped portions 220 are arranged at intervals along the length direction of the doctor blade body 200, and at least some of the tooth-shaped portions 220 are provided with mounting portions 230 for mounting on a mounting base corresponding to a printing device. In this manner, the blade body 200 can be mounted to the corresponding member of the printing apparatus through the mounting portion 230.
Referring to fig. 1, in some embodiments, the mounting portion 230 may be a mounting hole. The shape and size of the mounting hole are not limited and are set according to requirements.
For example, referring to fig. 1, in some embodiments, the tooth portions 220 have a trapezoidal shape, and each tooth portion 220 is provided with a mounting hole. Wherein, the mounting hole can be a circular hole or other shapes.
In other embodiments, the mounting portion 230 may be a mounting protrusion or other mounting portion 230 that enables the blade body 200 to be mounted to a mounting substrate.
Referring to fig. 1 to 3, in some embodiments, the scraper body 200 is provided with a through hole 240 penetrating through the sidewall of the scraper body 200. The through-hole 240 is provided to absorb the amount of deformation when the blade body 200 is deformed up and down.
Referring to fig. 1 to 3, in some embodiments, the number of the through holes 240 is multiple, and at least some of the through holes 240 are distributed in an array in the length direction of the blade body 200 and the width direction of the blade body 200. As such, when at least part of the through holes 240 are arranged in a matrix, it is possible to absorb the amount of deformation in a plurality of positions and directions when the blade body 200 is bent. Referring to fig. 1, the length direction of the blade body 200 is L2, and the width direction of the blade body 200 is L3.
It should be noted that the through holes 240 may be distributed in a periodic array manner or in a random (non-periodic) array manner in the length direction of the scraper body 200 and the width direction of the scraper body 200, and the specific manner of the array arrangement may be set as required, which is not described herein again.
Specifically, the through hole 240 may be a circular, elliptical, rectangular, or polygonal hole, or a combination of the aforementioned shapes, and the like. When the number of the through holes 240 is plural, the shape of the through holes 240 arranged on the scraper body 200 may also be a combination of at least two shapes, for example, a combination of a circular hole and an elliptical hole, or a combination of a circular hole and a rectangular hole, or a combination of a circular hole and a polygonal hole, or a combination of a polygonal hole and an elliptical hole, or a combination of a polygonal hole and a rectangular hole, and the like, which are not described herein in detail.
Referring to fig. 1, in some embodiments, the blade assembly 10 further includes an intermediate layer 300, and the blade body 200 is connected to the contact portion 100 through the intermediate layer 300. The intermediate layer 300 is arranged between the blade body 200 and the contact portion 100, the intermediate layer 300 preferably being deformable. Referring to fig. 2 and 3, in use, the scraper body 200 is bent and deformed by an external force, and drives the intermediate layer 300 to deform, and the contact portion 100 is driven to deform by the intermediate layer 300.
The material of the intermediate layer 300 may be the same as or different from that of the blade body 200, and in one embodiment, the intermediate layer 300 may be a silicon rubber layer or a rubber layer; silica gel layer and rubber layer self can take place to warp under the exogenic action on the one hand, and on the other hand, silica gel layer and rubber layer possess better recovery ability of warping after warping, consequently, after scraper device 10 printing finishes, under the effect of the elasticity restoring force of intermediate level 300, can drive contact site 100 and resume and warp to this scraper device 10 can be applicable to again in waiting to print 30 printing of other shapes.
In some embodiments, both the intermediate layer 300 and the blade body 200 may be integrally formed, which may provide the blade assembly 10 with greater strength.
In other embodiments, the intermediate layer 300 and the blade body 200 may be separate structures, and they may be fixedly connected by bonding or other connection means. In this case, the intermediate layer 300 and the blade body 200 may be made of different materials.
Referring to fig. 4 and 5, the curved member to be printed 30 generally includes a convex or concave state, wherein fig. 4 shows an application state of the doctor blade device 10 in the member to be printed 30 with a concave shape, and fig. 5 shows an application state of the doctor blade device 10 in the member to be printed 30 with a convex shape. For the two states of the curved member to be printed 30, in order to print the curved member to be printed 30, the contact portion 100 is configured to be bent to form a concave structure or a convex structure under the action of external force so as to match the shape of the surface to be printed of the member to be printed 30.
The use of the doctor blade device 10 will be explained below with the curved printing member 30 being convex and concave, respectively.
Referring to fig. 6 and 7, fig. 6 and 7 show some embodiments of the doctor apparatus 10 curved in a convex configuration to match the curved surface of the convex shape of the member to be printed 30. In use, the convex contact portion 100 is attached to the printing screen 20, and the printing screen 20 is attached to the convex surface of the member to be printed 30.
For example, referring to fig. 6 and 7, when the surface to be printed of the member to be printed 30 has a curvature change in two directions, such as the X and Y directions in fig. 6 and 7, the member to be printed 30 is a hyperboloid-shaped member to be printed 30. At this time, the squeegee device 10 is driven to bend and deform, and then, is attached to the printing screen 20, and is moved in the X direction or the Y direction to perform printing.
Referring to fig. 6, when the doctor blade device 10 is driven to move along the X direction to print the to-be-printed member 30, the doctor blade device 10 is bent to match the contact portion 100 with the shape of the portion of the to-be-printed surface extending along the Y direction. Specifically, the contact portion 100 acts on the member to be printed 30 through the printing screen 20.
Referring to fig. 7, when the doctor blade device 10 is driven to move the printing object 30 along the Y direction, the doctor blade device 10 is bent to match the contact portion 100 with the shape of the portion of the printing surface extending along the X direction. Specifically, the contact portion 100 acts on the member to be printed 30 through the printing screen 20.
Referring to fig. 8 and 9, fig. 8 and 9 show other embodiments in which the doctor apparatus 10 is curved in a concave shape to match the member to be printed 30 in the concave shape. In use, the recessed contact portion 100 is attached to the printing screen 20, and the printing screen 20 is attached to the surface to be printed of the recessed member to be printed 30.
For example, referring to fig. 8 and 9, when the surface to be printed of the member to be printed 30 has a curvature change in two directions, such as the X and Y directions in fig. 8 and 9, the member to be printed 30 is a hyperboloid-shaped member to be printed 30. At this time, the squeegee device 10 is driven to bend and deform, and then, is attached to the printing screen 20, and is moved in the X direction or the Y direction to perform printing.
Referring to fig. 8, when the doctor blade device 10 is driven to move along the X direction to print the to-be-printed member 30, the doctor blade device 10 is bent to match the contact portion 100 with the shape of the portion of the to-be-printed surface extending along the Y direction. Specifically, the contact portion 100 acts on the member to be printed 30 through the printing screen 20.
Referring to fig. 9, when the squeegee device 10 moves the printing member 30 in the Y direction, the squeegee device 10 is bent to match the shape of the contact portion 100 extending in the X direction on the surface to be printed. Specifically, the contact portion 100 acts on the member to be printed 30 through the printing screen 20.
The doctor apparatus 10 of any of the preceding embodiments may be adapted to the member to be printed 30 with a maximum dimension of 1200mm by 1600mm width, but is not limited to the minimum dimension. The thickness of the member to be printed 30 may be 0.7mm to 5.0mm, and preferably, the thickness of the member to be printed 30 may be 1.5mm to 3.0 mm; the radius of curvature of the member to be printed 30 may be 2000mm to 20000 mm. The shape of the member to be printed 30 may be a hyperboloid-shaped member to be printed 30.
In addition, an embodiment also relates to a printing device, which comprises the scraper device 10 in any one of the previous embodiments. Therefore, the printing apparatus can be applied to the curved-surface-shaped member to be printed 30 having a regularly or irregularly changing curvature, and also to the curved-surface-shaped member to be printed 30 having a large curved surface when it is used.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the above embodiments can be arbitrarily combined, and at least some possible combinations of the technical features in the above embodiments are not described for brevity, however, the combinations of the technical features should be considered as the scope of the present description as long as there is no contradiction between the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (12)

1. A doctor apparatus, comprising a contact portion for contacting engagement with a printing screen, said contact portion being arranged to be deformable under an external force to match the shape of the surface to be printed of a member to be printed.
2. Doctor blade arrangement according to claim 1, characterised in that the contact portion is arranged to bend under the influence of an external force into a concave or convex configuration to correspond to the shape of the surface to be printed of the member to be printed.
3. The doctor apparatus as claimed in claim 1, wherein the contact portion is made of a deformable material.
4. The doctor apparatus of claim 1, further comprising a doctor body coupled to the contact portion, the doctor body configured to deform under an external force to deform the contact portion.
5. A doctor apparatus according to claim 4, characterised in that the edge of the doctor body on the side remote from the contact portion is notched.
6. The doctor apparatus of claim 5, wherein the number of the notches is plural, and at least some of the notches are spaced apart along a length of the doctor body.
7. The doctor blade device according to claim 6, wherein a tooth-shaped portion is formed between two adjacent notches, the tooth-shaped portion is arranged at intervals along the length direction of the doctor blade body, and at least a part of the tooth-shaped portion is provided with a mounting portion for mounting a mounting base corresponding to a printing device.
8. Doctor apparatus according to any of claims 4-7, characterised in that the doctor body is provided with through-going holes through the side walls of the doctor body.
9. The doctor apparatus according to claim 8, wherein the number of through holes is plural, and at least some of the through holes are distributed in a matrix manner in a length direction of the doctor body and a width direction of the doctor body.
10. A doctor apparatus according to any of claims 4-7, characterized in that it further comprises an intermediate layer, by means of which the doctor body is connected to the contact portion, the intermediate layer being arranged between the doctor body and the contact portion, the intermediate layer being deformable.
11. Doctor apparatus according to claim 1, characterised in that the height of the contact portion is: 5mm-10mm, the shore hardness of the contact part is as follows: A60-A80.
12. A printing apparatus, characterized by comprising a doctor device according to any of claims 1 to 11.
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CN114379205A (en) * 2022-02-09 2022-04-22 福耀玻璃工业集团股份有限公司 Scraper driving device and printing equipment

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CN114192807A (en) * 2022-01-04 2022-03-18 浙江意动科技股份有限公司 Scraper structure, scraper anchor clamps, scraper subassembly and 3D printing device
CN114379205A (en) * 2022-02-09 2022-04-22 福耀玻璃工业集团股份有限公司 Scraper driving device and printing equipment

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