CN110252598B

CN110252598B - Scraper module and scraper device

Info

Publication number: CN110252598B
Application number: CN201910570348.7A
Authority: CN
Inventors: 陈硕华; 陆忠; 范真瑞; 陈号; 汪明文; 胡鹏飞; 于俊; 袁娜娜; 马姗姗; 周亚美; 连世豪; 尹陈林
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2021-08-06
Anticipated expiration: 2039-06-27
Also published as: CN110252598A

Abstract

The embodiment of the application provides a scraper module and scraper device, and the scraper module includes blade holder, scraper and backing sheet. The scraper and the supporting sheet are arranged in a stacked mode, and the tail portion of the scraper and the tail portion of the supporting sheet are fixed on the cutter holder through the clamping piece; the head of the scraper exceeds the head of the supporting sheet along the length direction of the scraper, and the head of the scraper is provided with a cutting edge. In the scraper module that this application embodiment provided, add the backing sheet and be equivalent to the rigidity that has improved the scraper, when the attachment applys great reaction force to the scraper, the backing sheet can provide holding power for the scraper and offset this reaction force, reduces the crooked degree of scraper remarkably, and then guarantees that the scraper can continue to exert effectual scraping force to the attachment, has improved and has scraped the success rate, reduces the residual rate of attachment.

Description

Scraper module and scraper device

Technical Field

The application relates to the technical field of scrapers, in particular to a scraper module and a scraper device.

Background

A scraper is a tool for scraping off attachments on other parts. Taking the nozzle for injecting glue as an example, the outer surface of the nozzle is easy to form the colloid congelation, and at this time, the colloid congelation needs to be scraped off from the nozzle by a scraper.

In prior art, the success rate of striking off of scraper is lower, utilizes the scraper to strike off the attachment on the part after, often can remain the attachment on the part, just so needs the artifical clean remaining attachment once more this moment, causes the waste of manpower, also influences production efficiency simultaneously.

Disclosure of Invention

This application provides a scraper module and scraper device to the shortcoming of current mode for solve the lower technical problem of the success rate of striking off of the scraper that prior art exists.

In a first aspect, an embodiment of the present application provides a doctor blade module, which includes a blade holder, a clamping member, a doctor blade, and a support sheet; the scraper and the supporting sheet are arranged in a stacked mode, and the tail portion of the scraper and the tail portion of the supporting sheet are fixed on the cutter holder through the clamping piece; the head of the scraper exceeds the head of the supporting sheet along the length direction of the scraper, and the head of the scraper is provided with a cutting edge.

In a second aspect, an embodiment of the present application provides a doctor apparatus for scraping off an attachment on a nozzle, the doctor apparatus includes a base, and a plurality of doctor modules provided in an embodiment of the present application, and the doctor modules are connected to the base.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects:

in the scraper module that this application embodiment provided, add the backing sheet and be equivalent to the rigidity that has improved the scraper, when the attachment applys great reaction force to the scraper, the backing sheet can provide holding power for the scraper and offset this reaction force, reduces the crooked degree of scraper remarkably, and then guarantees that the scraper can continue to exert effectual scraping force to the attachment, has improved and has scraped the success rate, reduces the residual rate of attachment.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a doctor blade module according to an embodiment of the present disclosure;

FIG. 2 is a disassembled schematic view of FIG. 1 provided by embodiments of the present application;

FIG. 3 is a schematic structural diagram of a doctor blade according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of another doctor blade provided in the embodiment of the present application;

FIG. 5 is a schematic structural diagram of a doctor apparatus according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of the projection of the cutting edges of three scrapers provided by the embodiment of the present application on a reference plane;

wherein the reference numerals are as follows:

100-a doctor module; 1-a tool apron; 11-a limiting groove;

2-a clamping member; 21-pressing plate; 22-a first connector; 3-a scraper; 4-a support sheet;

200-a base; 201-bar shaped holes; 202-a guide groove; 203-hollow out groove.

Detailed Description

Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

The inventor of the application finds that, in the prior art, the scraper generally has a certain length and is thinner in thickness, and in the process of scraping off the attachments by the scraper, when the adhesive force of the attached crops on the component is larger, the attached crops can apply larger reaction force to the scraper, so that the scraper can be subjected to stress yielding to generate larger bending deformation, and the scraper after the bending deformation can not continue to apply effective scraping force to the attachments, so that the attachments are difficult to be scraped cleanly, and then the attachments are left, and the scraping success rate of the scraper is low.

For the above reasons, the present embodiment provides a doctor blade module 100, as shown in fig. 1 and 2, the doctor blade module 100 includes a blade holder 1, a clamping member 2, a doctor blade 3 and a support sheet 4. The scraper 3 and the support sheet 4 are stacked, and the holder 2 fixes the tail of the scraper 3 and the tail of the support sheet 4 to the holder 1. The head of the scraper 3 exceeds the head of the support sheet 4 along the length direction of the scraper 3, and the head of the scraper 3 is provided with a cutting edge.

Both the scraper 3 and the support sheet 4 can be strip-shaped sheet bodies, and in two end parts of the scraper 3 in the length direction, one end provided with a cutting edge is a head part, and the other end is a tail part. The head and tail of the backing sheet 4 are adjacent to the head and tail of the doctor blade 3, respectively.

The blade 3 and the support sheet 4 are stacked, and the support sheet 4 is attached to the left or right side surface of the blade 3. The relative positions of the doctor blade 3 and the backing sheet 4 should depend on the direction of bending of the doctor blade 3 when subjected to forces in actual operation. If the scraper 3 is bent to the left side when being stressed in actual operation, the support sheet 4 should be attached to the left side surface of the scraper 3; if the blade 3 is bent to the right when subjected to a force in actual operation, the support sheet 4 should be fitted to the right side surface of the blade 3.

In the scraper module 100 provided by the embodiment of the application, the supporting sheet 4 is additionally arranged, which is equivalent to improving the rigidity of the scraper 3, when the attachment applies a large reaction force to the scraper 3, the supporting sheet 4 can provide a supporting force for the scraper 3 to offset the reaction force, so that the bending degree of the scraper 3 is remarkably reduced, and further, the scraper 3 can continue to apply an effective scraping force to the attachment, the scraping success rate is improved, and the residue rate of the attachment is reduced.

Alternatively, in the doctor blade module 100 provided in the embodiment of the present application, as shown in fig. 1, the clamping member 2 includes a pressing plate 21 and a first connecting member 22. The first connector 22 is inserted through the through holes in the pressing plate 21, the scraper 3 and the support sheet 4 and connected to the tool holder 1, and the first connector 22 presses the pressing plate 21 so that the pressing plate 21 presses the scraper 3 and the support sheet 4. The first connecting member 22 includes at least one of a screw, a rivet, and an anchor bolt.

Taking fig. 2 as an example, the first connecting member 22 includes a screw, the pressing plate 21, the tail portion of the scraper 3 and the tail portion of the supporting sheet 4 are provided with threaded through holes, the tool holder 1 is provided with threaded holes, and the scraper 3 is disposed between the pressing plate 21 and the supporting sheet 4. The tail part of the screw passes through the press plate 21, the scraper 3 and the threaded hole in the support sheet 4 in sequence and is screwed into the threaded hole on the cutter holder 1, and the head part of the screw presses the press plate 21. The number of the screws can be determined according to actual needs, only one screw is adopted in the embodiment of the application, and of course, more screws can be arranged according to needs. As the number of screws is increased, the number of screw holes in the pressing plate 21, the doctor blade 3 and the support plate 4 is also increased accordingly.

Optionally, in the doctor blade module 100 provided in this embodiment of the present application, the tool apron 1 is provided with a limiting groove 11, the tail of the doctor blade 3 and the tail of the support sheet 4 are disposed in the limiting groove 11, the head of the first connecting member 22 is attached to the pressing plate 21, and the tail of the first connecting member 22 is connected to the bottom surface of the limiting groove 11.

Generally, in order to avoid the rotation of the scraper 3 and the support plate 4 relative to the holder 1, at least two screws are generally required to fix the scraper 3 and the support plate 4. In the embodiment of the present invention, the limiting groove 11 can limit the rotation of the scraper 3 and the supporting sheet 4 relative to the holder 1, so that in the embodiment of the present invention, a better fixing effect can be achieved by only providing one screw.

Taking fig. 2 as an example, the limiting groove 11 includes a bottom surface and two side walls respectively located at two sides of the bottom surface. The side surfaces of the scraper 3 and the support sheet 4 are parallel to the bottom surface of the limit groove 11, and the two ends of the scraper 3 and the support sheet 4 are respectively attached to the two side walls of the limit groove 11 in the width direction of the side surface of the scraper 3, so that the side walls can limit the scraper 3 and the support sheet 4 to rotate relative to the cutter holder 1. The side surface of the supporting sheet 4 is attached to the bottom surface of the limiting groove 11, the bottom surface of the limiting groove 11 of the tool apron 1 is provided with a threaded hole, the tail of the screw sequentially penetrates through the threaded holes in the pressing plate 21, the scraper 3 and the supporting sheet 4 and is screwed into the threaded hole in the tool apron 1, and the head of the screw presses the pressing plate 21.

In fig. 2, the threaded through hole of the scraper 3 is circular. Alternatively, as shown in fig. 3 and 4, the threaded through hole of the scraper 3 may also be a U-shaped hole.

Based on the same inventive concept, the present application also provides a doctor apparatus for scraping off the attachments on the nozzle, as shown in fig. 5, the doctor apparatus includes a base 200, and a plurality of doctor modules 100 provided in the present application, and the doctor modules 100 are connected to the base 200. The number of doctor modules 100 in the doctor apparatus may be determined according to the actual need, and in fig. 5, the doctor apparatus comprises 3 doctor modules 100.

Optionally, in the doctor apparatus provided in the embodiment of the present application, the plurality of doctor modules 100 is embodied as three doctor modules 100. The blade holders 1 of the three blade modules 100 are respectively arranged at three positions on the top surface of the base 200, the three positions form a triangle, and the blades 3 of the three blade modules 100 extend approximately along a first direction, which is parallel to the top surface of the base 200. The projections of the cutting edges of the three scrapers 3 in the reference plane, which is perpendicular to the first direction, enclose a closed figure.

It should be noted that the triangle is a virtual figure, and the concept of triangle is introduced to more clearly illustrate the relative positions of the blade holders 1 of the three blade modules 100. The reference plane is a virtual plane, and the concept of the reference plane is introduced to more clearly illustrate the relative positions of the blades 3 of the three blade modules 100.

Fig. 6 is a schematic projection diagram of the cutting edges of the three scrapers 3 on the reference plane, three mutually intersected straight line segments in fig. 6 represent the cutting edges, and a triangle formed by enclosing the three straight line segments is a closed graph. It should be noted that the broken line in fig. 6 indicates a portion where the blade edge is blocked. The line C in fig. 6 represents the edge of the blade 3 in the leftmost blade module 100 in fig. 5, and the lines L and R in fig. 6 represent the edges of the blades 3 in the other two blade modules 100 in fig. 5, respectively.

When the scraper device is used to scrape off the attachments on the nozzle, it is generally desirable that the nozzle extends into a closed pattern enclosed by three cutting edges along a first direction, which ensures that each position in the area to be scraped off of the nozzle is contacted with the corresponding cutting edge as far as possible, so that the attachments on each position can be scraped off.

Alternatively, in the doctor apparatus provided in the embodiment of the present application, the blade seats 1 of two of the three doctor modules 100 are connected to the top surface of the base 200 in such a manner that the mounting positions can be adjusted on the base 200, and are away from the blade seats 1 of the other doctor module 100 in the first direction.

Taking fig. 5 as an example, the top surface of the base 200 in the figure is substantially rectangular, and the first direction is the extending direction of the long side of the top surface of the base 200. Of the three doctor modules 100, one of the doctor modules 100 (the leftmost doctor module 100 in fig. 5) is close to one of the broadsides (the leftmost edge line in fig. 5) in the top surface and the other two doctor modules 100 (the relatively rightmost doctor module 100 in fig. 5) are distant from the broadside in the first direction. By blade holder 1 fixed connection of broadside's scraper module 100 on base 200, two blade holders 1 of keeping away from broadside's scraper module 100 are connected in the top surface of base 200 with the mode that can adjust the mounted position on base 200 in addition, in practical application, can be according to the model of nozzle, size or other factors, adjust the mounted position of blade holder 1, change the position relation between scraper 3 and the nozzle, improve and strike off the effect.

Alternatively, in the doctor apparatus provided in the embodiment of the present application, the top surface of the base 200 is provided with a first area and a second area, and the two tool holders 1 capable of adjusting the installation positions are respectively provided in the first area and the second area. At least one strip-shaped hole 201 penetrating through the base 200 is formed in each of the first region and the second region, and a second connecting member (not shown in the figure) penetrates through the strip-shaped hole 201 and is connected with the tool apron 1.

Taking fig. 5 as an example, the opening of the strip-shaped hole 201 is waist-shaped, the length direction of the opening is parallel to the width direction of the base 200, the second connecting member may be a bolt, and the bottom surface of the tool apron 1 is provided with a threaded hole. The bolt passes through the hole and screws into the threaded hole on the bottom surface of the tool apron 1, when the bolt does not exert pretightening force, the bolt can adjust the position in the strip-shaped hole 201 along the width direction of the base 200, so that the tool apron 1 can adjust the installation position on the base 200 along the width direction of the base 200, the tool apron 1 can also rotate relative to the base 200 by taking the bolt as a shaft, and the direction of the tool apron 1 can be circumferentially placed on the base 200 by adjusting. After the position of the tool holder 1 is adjusted in place, the bolt can be tightened, so that the position of the tool holder 1 is fixed.

Optionally, in the scraper device provided in the embodiment of the present application, a plurality of guide grooves 202 are provided in both the first region and the second region, and a length direction of the guide grooves 202 is perpendicular to the first direction. At least one guide member (not shown) is provided on the bottom surface of the holder 1 disposed in the first and second regions, and is located in the guide groove 202 and slidably engaged with the guide groove 202.

It should be noted that the guide may be a screw or a projection or the like provided on the bottom surface of the holder 1.

The guide of the tool holder 1 is disposed in the guide groove 202, and the positioning accuracy of the tool holder 1 with respect to the base 200 can be improved. In fig. 5, the longitudinal direction of the guide groove 202 is perpendicular to the first direction (rather parallel to the width direction of the base 200), and therefore the longitudinal direction of the guide groove 202 is also parallel to the longitudinal direction of the opening of the strip-shaped hole 201. When the tool holder 11 is adjusted in the width direction of the base 200 by the restriction of the guide groove 202, the tool holder 11 is prevented from being displaced in the other direction.

Alternatively, three guide grooves 202 are uniformly spaced in the first direction in the first region and the second region, respectively. Two guide members are arranged at the bottom of the tool holder 1, and the distance between the two guide members is equal to the distance between the two guide grooves 202. The two guides at the bottom of the tool holder 1 are respectively arranged in two adjacent guide grooves 202, so as to further ensure the position accuracy of the tool holder 11 on the base 200.

Further, the tool holder 1 provided in the first region and the second region can be adjusted in the mounting position in the first direction. For example, the guide of the tool holder 1 is changed from one guide groove 202 to another guide groove 202, so that the tool holder 1 can be changed in the mounting position relative to the base 200 in the first direction.

Optionally, a plurality of bar-shaped holes 201 are provided in the first region and the second region, so that after the tool holder 1 changes the installation position relative to the base 200 in the first direction, the tool holder 1 can still be connected to the base 200 through the second connecting member and the corresponding bar-shaped hole 201.

Alternatively, a plurality of bar-shaped holes 201 in the first area and the second area are arranged outside the guide grooves 202 and between two adjacent guide grooves 202.

Optionally, in the scraper device provided in the embodiment of the present application, a hollow groove 203 is provided in the base 200. The hollow 203 penetrates the base 200 in a direction perpendicular to the top surface of the base 200. At least a portion of each blade 3 including the cutting edge faces the hollow groove 203 in a direction perpendicular to the top surface of the base 200.

When the blade of the scraper 3 scrapes off the attachments on the nozzle, the scraped attachments can fall into the designated area through the hollow groove 203, so as to prevent the attachments from falling on the base 200, which is helpful for keeping the base 200 clean.

The edge of the hollow-out groove 203 is as close as possible to the position of the tool holder 1, so that the size of the hollow-out groove 203 is increased as much as possible. The hollow-out groove 203 may be formed on the base 200 by turning, milling, or the like, or may be formed during the casting process of the base 200.

Alternatively, in the scraper device provided in the embodiment of the present application, for the projected profiles of the three scrapers 3 in the top surface of the base 200, there is a preset gap between the projected profiles of any two scrapers 3.

When the edge of one scraper 3 scrapes off the attachments on the nozzle, the scraped attachments can be effectively prevented from falling onto the other scraper 3 due to the predetermined gap between the projected profiles of the two scrapers 3, which helps to keep the scrapers 3 clean.

By applying the embodiment of the application, at least the following beneficial effects can be realized:

1. in the scraper module that this application embodiment provided, add the backing sheet and be equivalent to the rigidity that has improved the scraper, when the attachment applys great reaction force to the scraper, the backing sheet can provide holding power for the scraper and offset this reaction force, reduces the crooked degree of scraper remarkably, and then guarantees that the scraper can continue to exert effectual scraping force to the attachment, has improved and has scraped the success rate, reduces the residual rate of attachment.

2. The scraper module that this application embodiment provided can be according to model, size or other factors of nozzle, the mounted position of adjustment blade holder, changes the position relation between scraper and the nozzle, improves and strikes off the effect.

3. In the scraper device provided by the embodiment of the application, when the cutting edge of the scraper scrapes off the attachments on the nozzle, the scraped attachments can fall into the designated area through the hollow groove, so that the attachments are prevented from falling on the base, and the cleanness of the base is kept.

4. In the scraper device provided by the embodiment of the application, when the attached matter on the nozzle is scraped off by the blade edge of one scraper, the scraped-off attached matter can be effectively prevented from falling onto other scrapers due to the preset gap between the projection profiles of the two scrapers, and the cleanness of the scrapers is favorably maintained.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. The utility model provides a scraper device for strike off the attachment on the nozzle, its characterized in that includes base and three scraper module, the scraper module includes: a scraper; the scraper module is connected to the base;

the tool holders of the three scraper modules are respectively arranged at three positions on the top surface of the base, the three positions form a triangle, the scrapers of the three scraper modules extend along a first direction approximately, and the first direction is parallel to the top surface of the base; the projections of the cutting edges of the three scrapers in the reference plane are three mutually crossed straight line segments, the three straight line segments surround to form a closed graph, and the reference plane is perpendicular to the first direction.

2. The doctor apparatus of claim 1, wherein the doctor module further comprises: the tool holder, the clamping piece and the supporting piece;

the scraper and the supporting sheet are arranged in a stacked mode, and the tail portion of the scraper and the tail portion of the supporting sheet are fixed to the cutter holder through the clamping piece; the head of the scraper exceeds the head of the supporting sheet along the length direction of the scraper, and the head of the scraper is provided with a cutting edge.

3. The doctor apparatus as claimed in claim 2, wherein the clamp includes a pressure plate and a first connector; the first connecting piece penetrates through via holes in the pressing plate, the scraper and the supporting sheet and is connected to the cutter holder, and the first connecting piece exerts pressure on the pressing plate to enable the pressing plate to tightly press the scraper and the supporting sheet; the first connecting member includes at least one of a screw, a rivet, and an anchor bolt.

4. The scraper device according to claim 3, wherein the scraper seat is provided with a limiting groove, the tail of the scraper and the tail of the support sheet are arranged in the limiting groove, the head of the first connecting member is attached to the pressing plate, and the tail of the first connecting member is connected to the bottom surface of the limiting groove.

5. The doctor apparatus of claim 1, wherein the blade seats of two of the three doctor modules are connected to a top surface of the base in such a way that the mounting position can be adjusted on the base and are remote from the blade seats of the other doctor module in the first direction.

6. A doctor apparatus according to claim 5, characterised in that the top surface of the base is provided with a first and a second area, two adjustable mounting positions of the blade seats being provided in the first and second area, respectively;

the first region with all be provided with at least one in the second region and run through the bar hole of base, the second connecting piece wear to locate the bar hole and with the blade holder is connected.

7. The doctor apparatus as claimed in claim 6, wherein a plurality of guide slots are provided in both the first and second regions, the guide slots having a length direction perpendicular to the first direction;

the bottom surface of the tool apron arranged in the first area and the second area is provided with at least one guide piece, and the guide piece is positioned in the guide groove and is in sliding fit with the guide groove.

8. The doctor apparatus as claimed in claim 7, wherein a hollowed-out groove is provided in the base; the hollow groove penetrates through the base along the direction perpendicular to the top surface of the base;

and the part of each scraper, which at least comprises the cutting edge, is opposite to the hollow groove along the direction vertical to the top surface of the base.

9. The doctor apparatus as claimed in claim 1, wherein for three of the doctor blades 'projected profiles in the top surface of the base, there is a preset gap between any two of the doctor blades' projected profiles.