CN215656030U

CN215656030U - Scraper mechanism

Info

Publication number: CN215656030U
Application number: CN202121729844.1U
Authority: CN
Inventors: 徐长波
Original assignee: InfoVision Optoelectronics Kunshan Co Ltd
Current assignee: InfoVision Optoelectronics Kunshan Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-28
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a scraper mechanism, and relates to the technical field of liquid crystal display manufacturing. The scraper mechanism comprises a base, a glue homogenizing wheel, a support and a scraper component. The spin coater is rotatably arranged on the base; the bracket is arranged on the base and can move along a first direction relative to the base; the scraper subassembly includes blade holder, reinforcement and twolip scraper, the reinforcement with twolip scraper laminating and fixed set up in the blade holder, the blade holder rotate set up in the support, the blade of twolip scraper can pass through the rotation of blade holder is close to or keeps away from even rubber tyer. This scraper mechanism can strengthen the blade and make blade non-deformable and increase of service life.

Description

Scraper mechanism

Technical Field

The utility model relates to the technical field of manufacturing of liquid crystal displays, in particular to a scraper mechanism.

Background

In the process of manufacturing the TFT liquid crystal panel, a PI (polyimide) solution is coated on the glass substrates of the array substrate and the color filter substrate to form a PI film. In the prior art, the PI liquid is required to be firstly dropped on the surface of the glue homogenizing wheel, then the glue homogenizing wheel is rotated, the PI liquid on the surface of the glue homogenizing wheel is uniformly distributed and the redundant PI liquid is scraped by utilizing the cutting edge of the scraper, and then the PI liquid is coated on the glass substrate in a transfer printing mode.

In order to protect the surface of the even rubber wheel from being scratched by the cutting edge of the scraper, the scraper is generally made of plastics or plastic materials, the texture is soft, and particularly, the cutting edge part is easy to deform after being used for a long time, so that PI liquid on the surface of the even rubber wheel cannot be uniformly scraped. And the cutting edge is easy to wear after long-time use, the scraper needs to be replaced by stopping the machine, the frequency of replacing the scraper is improved due to the softer texture, and the production efficiency is greatly reduced.

To the above-mentioned problem, need develop a scraper mechanism to solve because the softer blade that leads to of scraper texture can't the blade coating even PI liquid on rubber tyer surface after warping, and need frequently change the problem that the scraper leads to production efficiency to reduce.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a scraper mechanism which can strengthen a cutting edge, enable the cutting edge not to be easily deformed and prolong the service life.

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

a scraper mechanism comprising:

a base;

the glue homogenizing wheel is rotatably arranged on the base;

the bracket is arranged on the base and can move along a first direction relative to the base;

the scraper subassembly, the scraper subassembly includes blade holder, reinforcement and twolip scraper, the reinforcement with twolip scraper laminating and fixed set up in the blade holder, the blade holder rotate set up in the support, the blade of twolip scraper can pass through the rotation of blade holder is close to or keeps away from even rubber tyer.

Preferably, still include first rotating electrical machines, first rotating electrical machines is fixed set up in the support, first rotating electrical machines can drive the blade holder rotates.

Preferably, the clamping device further comprises a clamping assembly, the clamping assembly comprises a driving member, a first clamping member and a second clamping member, one end of the driving member is in transmission connection with an output shaft of the first rotating motor, the other end of the driving member is fixedly connected with the first clamping member, the second clamping member is rotatably arranged at the other end of the tool apron, and the driving member can drive the first clamping member to approach or leave the second clamping member so as to clamp or loosen the tool apron.

Preferably, the first clamping member is provided with a first positioning pin, and the tool apron is provided with a first positioning hole matched with the first positioning pin.

Preferably, the first rotating motor output shaft is in transmission connection with a four-jaw chuck, and the four-jaw chuck can clamp the driving piece.

Preferably, the base is provided with a guide post extending in the first direction, and the bracket is provided with a guide hole into which the guide post is inserted.

Preferably, one end of the guide column, which is far away from the base, is in threaded connection with a limit nut.

Preferably, the automatic feeding device further comprises a driving assembly, the driving assembly comprises a second rotating motor and a screw rod, the second rotating motor is fixedly arranged on the base, the screw rod is arranged along the first direction, one end of the screw rod is in transmission connection with an output shaft of the second rotating motor, and the other end of the screw rod penetrates through the support and is in threaded connection with the support.

Preferably, the reinforcement is a metal plate.

Preferably, the tool apron is provided with a second positioning pin, the reinforcing part and the double-edged scraper are both provided with second positioning holes, and the second positioning pin sequentially penetrates through the second positioning holes of the reinforcing part and the double-edged scraper.

The utility model has the beneficial effects that:

the utility model provides a scraper mechanism. In this scraper mechanism, utilize the reinforcement to support the scraper, make the scraper only the blade stretch out the reinforcement scope of reinforcement when using, because the reach-out distance is shorter, the blade can not take place deformation basically in the use, can be even with the PI liquid knife coating on even rubber tyer surface, and has fine protection effect to the blade. Simultaneously, the scraper is manufactured into double blades, the blades can be switched by rotating the cutter holder, the service life is doubled, the scraper needs to be stopped and replaced after the blades on the two sides are damaged, and the production efficiency is greatly improved.

Drawings

FIG. 1 is a schematic structural view of a doctor mechanism provided by the present invention;

figure 2 is an exploded view of a doctor assembly provided by the present invention.

In the figure:

1. a base; 2. glue homogenizing wheel; 3. a support; 4. a scraper assembly; 5. a first rotating electrical machine; 6. a clamping assembly; 7. a drive assembly;

11. a guide post; 12. a limit nut; 41. a tool apron; 42. a reinforcement; 43. a double-edged scraper; 51. a four-jaw chuck; 61. a drive member; 62. a first clamping member; 63. a second clamping member; 71. a second rotating electrical machine; 72. a screw rod;

411. a second positioning pin; 431. cutting edges; 621. a first alignment pin.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

The present embodiment provides a scraper mechanism. As shown in fig. 1, the scraper mechanism includes a base 1, a spreader wheel 2, a bracket 3 and a scraper assembly 4. The glue homogenizing wheel 2 is arranged on the base 1 in a rolling mode and used for conducting transfer printing on the glass substrate after the uniform PI liquid is coated. The bracket 3 is disposed on the base 1 and can move in a first direction relative to the base 1. The scraper component 4 comprises a cutter holder 41, a reinforcing piece 42 and a double-edge scraper 43, the reinforcing piece 42 is attached to the double-edge scraper 43 and fixedly arranged on the cutter holder 41, the cutter holder 41 is rotatably arranged on the support 3, and the cutting edge 431 of the double-edge scraper 43 can be close to or far away from the glue spreader 2 through the rotation of the cutter holder 41.

In this scraper mechanism, utilize reinforcement 42 to support twolip scraper 43, make twolip scraper 43 only blade 431 stretch out the enhancement scope of reinforcement 42 when using, that is to say blade 431 stretches out reinforcement 425 about 10mm, because the protrusion distance is shorter, twolip scraper 43's main part can not take place deformation under reinforcement 42's support, can guarantee that this twolip scraper 43 is when the PI liquid on even glue wheel 2 surface of blade coating, blade 431 can not take place deformation basically, can be even with the PI liquid blade coating on even glue wheel 2 surface, and have fine guard effect to blade 431. This scraper mechanism is simultaneously for the twolip with the scraper preparation to the blade 431 of work is switched in the accessible rotation blade holder 41, has improved one time's life in other words, treats that just need shut down to change the scraper after both sides blade 431 all damages, has improved production efficiency greatly. The operator can also adjust the distance between the cutting edge 431 and the surface of the glue homogenizing wheel 2 by adjusting the distance between the bracket 3 and the base 1 along the first direction, and can adjust the angle between the cutting edge 431 and the glue homogenizing wheel 2 by rotating the tool apron 41, so that PI liquid with proper thickness can be obtained on the surface of the glue homogenizing wheel 2.

Preferably, the scraper mechanism further comprises a first rotating motor 5, the first rotating motor 5 is fixedly arranged on the support 3, and the first rotating motor 5 can drive the cutter holder 41 to rotate. First rotating electrical machines 5 can improve the degree of automation of this scraper mechanism, and utilize first rotating electrical machines 5 can control the angle behind the blade holder 41 rotation very accurately, and the operating personnel of being convenient for controls the contained angle on blade 431 and even rubber tyer 2 surfaces, improves the knife coating effect.

In order to facilitate the assembly and disassembly of the tool holder 41 for replacing the double-edged scraper 43, the scraper mechanism further comprises a clamping assembly 6, the clamping assembly 6 comprises a driving member 61, a first clamping member 62 and a second clamping member 63, one end of the driving member 61 is in transmission connection with the output shaft of the first rotating motor 5, the other end of the driving member 61 is fixedly connected with the first clamping member 62, the second clamping member 63 is rotatably arranged at the other end of the tool holder 41, and the driving member 61 can drive the first clamping member 62 to approach or be far away from the second clamping member 63 so as to clamp or loosen the tool holder 41.

When the tool holder 41 needs to be disassembled to replace the double-edged blade 43, the operator controls the first clamping member 62 to be away from the second clamping member 63 through the driving member 61, and after taking out the blade assembly 4 and replacing the double-edged blade 43 with a new one, controls the first clamping member 62 to be close to the second clamping member 63 to clamp the tool holder 41. The first clamping member 62 and the second clamping member 63 are both in contact with the tool holder 41 through at least two ejector rods, and in order to ensure that the tool holder 41 rotates synchronously with the first clamping member 62 and the second clamping member 63 and does not slip, the ejector rods need to extend into a part of the tool holder 41. It should be noted that the driving member 61 can also be directly and rotatably connected to the bracket 3, and the angle adjustment between the cutting edge 431 and the glue homogenizing wheel 2 can be realized by manual rotation of an operator. Wherein the driving member 61 may be a cylinder.

Preferably, the first clamping member 62 is provided with a first positioning pin 621, and the tool holder 41 is provided with a first positioning hole engaged with the first positioning pin 621. When the operator installs the doctor assembly 4, the tool apron 41 abuts against the second clamping member 63 and the ejector rod extends into a part of the tool apron 41, then the driving member 61 controls the first clamping member 62 to approach the second clamping member 63 to clamp the tool apron 41, and the first positioning pin 621 is preferentially inserted into the first positioning hole to guide the first clamping member 62 and prevent the first clamping member 62 from being driven by the driving member 61 to impact the tool apron 41 due to position deviation.

Preferably, the output shaft of the first rotating electric machine 5 is in transmission connection with a four-jaw chuck 51, and the four-jaw chuck 51 can clamp the driving member 61. The four-jaw chuck 51 can clamp the driving element 61 from four directions, so that when the driving element 61 is driven by the first rotating motor 5 to rotate, the driving element 61 cannot deviate to cause that the rotation axis does not coincide with the rotation axis of the first rotating motor 5, and the deviation occurs between the cutting edge 431 of the double-edge scraper 43 and the glue evening wheel 2 as a position relation, thereby influencing the scraping effect.

In order to further improve the accuracy of the relative position between the cutting edge 431 of the double-edge scraper 43 and the glue homogenizing wheel 2 during the scraping process, the base 1 is provided with a guide post 11, the guide post 11 extends along the first direction, and the support 3 is provided with a guide hole into which the guide post 11 is inserted. By the guiding action of the guiding studs 11, the carriage 3 can only move in the first direction, which improves the accuracy of the position. It will be appreciated that the guide holes are a clearance fit with the guide posts 11 in order to enable the carriage 3 to slide relative to the guide posts 11 through the guide holes.

Preferably, a limit nut 12 is screwed on one end of the guide post 11 far away from the base 1. Through the locking of the limit nut 12, before the limit nut 12 is removed, the support 3 cannot be separated from the guide post 11, so that the support 3 is effectively prevented from being separated from the guide post 11 in the process of moving along the first direction, and the scraper mechanism is prevented from being damaged or injuring people.

Preferably, the scraper mechanism further comprises a driving assembly 7, the driving assembly 7 comprises a second rotating motor 71 and a screw rod 72, the second rotating motor 71 is fixedly arranged on the base 1, the screw rod 72 is arranged along the first direction, one end of the screw rod 72 is in transmission connection with an output shaft of the second rotating motor 71, and the other end of the screw rod 72 penetrates through the support 3 and is in threaded connection with the support 3.

The distance between support 3 and the base 1 can be adjusted to drive assembly 7 to the distance between the blade 431 of adjustment twolip scraper 43 and the even rubber tyer 2's surface, and lead screw 72 also can play the effect of slowing down with support 3 threaded connection, makes support 3 slowly steady movement, reduces the noise of this scraper mechanism, also can improve the accuracy of adjusting.

Wherein the reinforcing member 42 is a metal plate. The metal plate has certain hardness, can play fine supporting role to twolip scraper 43, preferred aluminum plate, and reinforcement 42 can respectively set up one in twolip scraper 43's both sides, utilizes two reinforcements 42 centre gripping twolip scraper 43 to it is fixed through blade holder 41, can play better reinforcing effect.

Preferably, the tool apron 41 is provided with a second positioning pin 411, the reinforcing member 42 and the double-edged scraper 43 are provided with second positioning holes, and the second positioning pin 411 passes through the second positioning holes of the reinforcing member 42 and the double-edged scraper 43 in sequence, as shown in fig. 2. The second positioning pin 411 can ensure the accuracy of the position of the double-edged scraper 43 relative to the tool apron 41 after the double-edged scraper 43 is replaced each time through the second positioning hole, and can ensure the accuracy of the position between the reinforcing member 42 and the double-edged scraper 43, so that other structures related to position adjustment record position data, and the cutting edge 431 of the double-edged scraper 43 is quickly positioned on the surface of the spin coater 2.

In order to further improve the adjustability of the position between the double-edge scraper 43 and the spin coater 2, the scraper mechanism further comprises an adjusting table, the adjusting table is arranged on the base 1 in a sliding manner along a direction perpendicular to the spin coater 2 and the first direction, the second rotating motor 71 and the guide post 11 are arranged on the adjusting table, and the relative position of the cutting edge 431 of the double-edge scraper 43 and the spin coater 2 can be adjusted by moving the adjusting table.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A scraper mechanism, comprising:

a base (1);

the glue homogenizing wheel (2) is rotationally arranged on the base (1);

the bracket (3) is arranged on the base (1) and can move along a first direction relative to the base (1);

scraper subassembly (4), scraper subassembly (4) include blade holder (41), reinforcement (42) and twolip scraper (43), reinforcement (42) with twolip scraper (43) laminating and fixed set up in blade holder (41), blade holder (41) rotate set up in support (3), blade (431) of twolip scraper (43) can pass through the rotation of blade holder (41) is close to or keeps away from even rubber tyer (2).

2. The scraper mechanism of claim 1, further comprising a first rotating motor (5), wherein the first rotating motor (5) is fixedly arranged on the support (3), and the first rotating motor (5) can drive the blade holder (41) to rotate.

3. The doctor mechanism as claimed in claim 2, further comprising a clamping assembly (6), wherein the clamping assembly (6) includes a driving member (61), a first clamping member (62), and a second clamping member (63), one end of the driving member (61) is in transmission connection with the output shaft of the first rotating motor (5), the other end of the driving member (61) is fixedly connected with the first clamping member (62), the second clamping member (63) is rotatably disposed at the other end of the tool holder (41), and the driving member (61) can drive the first clamping member (62) to approach or move away from the second clamping member (63) to clamp or release the tool holder (41).

4. A scraper mechanism according to claim 3, characterized in that the first clamping member (62) is provided with a first positioning pin (621), the holder (41) being provided with a first positioning hole cooperating with the first positioning pin (621).

5. Doctor mechanism according to claim 3, characterised in that the first rotary motor (5) has an output shaft with a four-jaw chuck (51) in transmission connection, which four-jaw chuck (51) can grip the drive element (61).

6. Scraper mechanism according to claim 1, characterized in that the base (1) is provided with guide posts (11), which guide posts (11) extend in the first direction, and that the holder (3) is provided with guide holes, into which the guide posts (11) are inserted.

7. Scraper mechanism according to claim 6, characterized in that a limit nut (12) is screwed to the end of the guide post (11) remote from the base (1).

8. The scraper mechanism according to claim 1, further comprising a driving assembly (7), wherein the driving assembly (7) comprises a second rotating motor (71) and a screw rod (72), the second rotating motor (71) is fixedly arranged on the base (1), the screw rod (72) is arranged along the first direction, one end of the screw rod (72) is in transmission connection with an output shaft of the second rotating motor (71), and the other end of the screw rod (72) penetrates through the bracket (3) and is in threaded connection with the bracket (3).

9. Doctor mechanism according to claim 1, characterized in that the reinforcement (42) is a metal plate.

10. A doctor mechanism according to claim 1, characterized in that the blade holder (41) is provided with a second positioning pin (411), the reinforcement (42) and the double-edged doctor (43) each being provided with a second positioning hole, the second positioning pin (411) passing through the reinforcement (42) and the double-edged doctor (43) in turn.