CN211251803U - Quick scraper replacing device - Google Patents
Quick scraper replacing device Download PDFInfo
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- CN211251803U CN211251803U CN201921860874.9U CN201921860874U CN211251803U CN 211251803 U CN211251803 U CN 211251803U CN 201921860874 U CN201921860874 U CN 201921860874U CN 211251803 U CN211251803 U CN 211251803U
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- doctor blade
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- fixing plate
- pressing strip
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Abstract
The utility model relates to a quick replacing device for a doctor blade, which comprises a blade frame, a pressing strip, a lining blade, a doctor blade, a fixed plate, a locking screw, a fixed screw, a pressing air bag and an inflating valve; the pressing strip is arranged above the left end of the tool rest; the lining cutter is arranged below the pressing strip; the ink scraping knife is arranged below the lining knife; the fixing plate is arranged on the tool rest through a locking screw; a fixing screw is arranged on the left side of the fixing plate, and a pressing air bag is arranged at the contact part of the fixing plate and the pressing strip; a cutter groove is formed between the cutter frame and the pressing strip, and the lining cutter and the ink scraping cutter are arranged in the cutter groove; the lower part of the fixed screw is provided with a plurality of springs; the upper end of the pressing strip is provided with a plurality of through holes, the charging connector is connected with the fixing plate and is connected with an air duct, and the charging connector inflates the pressing airbag through the air duct. The utility model discloses can be used for the quick replacement device of ink scraping knife, simple structure is reasonable, and it is convenient quick to change, and operation technical requirement is low, and the installation accuracy is high.
Description
Technical Field
The utility model relates to a quick replacement device especially relates to a doctor blade quick replacement device.
Background
A doctor blade is a thin sheet (both metallic and non-metallic) on a printing press that scrapes off excess ink on the surface of the cylinder, and in each printing process, the removal of ink in the non-patterned areas is a key issue, and in offset printing, this control is a complex process of ink delivery, including ink, plate, and paper; in intaglio printing, which is a mechanical operation, it is relatively simple, but it has its own peculiarities, the ink doctor blade must have wear resistance and high efficiency to guarantee high quality of the print, and it must be adapted to the requirements of permanence and high speed of modern intaglio printing. The installation condition of the doctor blade directly influences the quality of printed matters.
When the traditional scraper is installed, firstly, the doctor blade is placed under the supporting blade and is arranged in the blade groove, then the screw at the back of the blade is screwed, the screw is screwed gradually outwards from the middle, and the two sides are screwed in turn, so that the blade is smooth and free of warping and twisting, meanwhile, according to the circumference of a printing plate cylinder, the standard height of the blade carrier, the forward extension size of the doctor blade and the angle of the doctor blade are checked by referring to a blade carrier adjusting table, and the standard adjustment is carried out; when the scraper is replaced, an operator needs to loosen and tighten more than 10 screws of the cutter frame, the repeated labor is more, the operation must be completed by personnel with certain operation skills according to a certain operation flow, and otherwise, printing faults are easily caused due to improper installation of the scraper. The installation and the replacement of the whole doctor blade are time-consuming and labor-consuming, the working efficiency is low, the requirement on operators is higher, and the quality can not be effectively guaranteed. Therefore, a need exists for a doctor blade quick replacement device that reduces operator labor, improves work efficiency, and ensures that the quality of the blade replacement installation is more reliable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a doctor blade quick replacement device that simple structure is reasonable, change convenient quick, the operation technical requirement is low, the installation accuracy is high.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a quick replacing device for a doctor blade comprises a blade frame, a pressing strip, a lining blade, the doctor blade, a fixing plate, a locking screw, a fixing screw, a pressing air bag and an inflating nozzle; the pressing strip is arranged above the left end of the tool rest; the lining cutter is arranged below the pressing strip; the doctor blade is arranged below the lining blade; the fixing plate is arranged on the tool rest through the locking screw; the left side of the fixing plate is provided with a fixing screw, the contact part of the fixing plate and the pressing strip is provided with the pressing air bag, the inflating nozzle is connected with the fixing plate and is connected with an air duct, and the inflating nozzle inflates the pressing air bag through the air duct.
According to the quick change device for the doctor blade, the blade groove is formed between the blade frame and the pressing strip, the lining blade and the doctor blade are arranged in the blade groove, so that the installation is simpler and more convenient, the structure is firmer and more durable, the clamping is more stable, the doctor blade is ensured to be smooth and free from warping and twisting, and the doctor effect is better.
According to the quick change device for the doctor blade, the spring is arranged at the lower part of the fixing screw, the spring is sleeved on the fixing screw, the fixing screw and the spring are provided with a plurality of pressing air bags, compressed air can be conveniently filled into the pressing air bags, the pressing air bags expand to extrude the pressing strips and the fixing plate, the springs extend to drive the pressing strips to press downwards, the pressing strips are matched with the knife rest to press the lining knife and the doctor blade, the quick installation of the doctor blade is realized, the installation is more convenient and quick, time and labor are saved, the working efficiency is higher, and the installation precision is higher; when the doctor blade needs to be replaced, the pressing air bag is deflated, the spring contracts to drive the pressing strip, the clamping of the lining blade and the doctor blade is released, the replacement is quick and convenient, the operation is simple, and the technical requirement is low.
According to the quick scraper replacing device, the upper end of the pressing strip is provided with the through holes, the through holes correspond to the fixing screws, the fixing plate and the pressing strip can be conveniently and fixedly connected through the fixing screws and the through holes, the installation is simple and rapid, the stress is balanced, the connection is firm and durable, and the clamping effect on the scraper is better.
According to the quick scraper replacing device, the lower end of the left side of the fixing plate is provided with the plurality of circular holes, and the pressing air bag is arranged in the circular holes, so that the device is more compact and reasonable in arrangement and simpler and more convenient to operate.
According to the doctor blade quick replacement device, the pressing air bags are provided with the plurality of pressing air bags which are evenly distributed, so that the force is more balanced and stable, the clamping effect is better, and the mounting precision is higher.
The quick scraper replacing device further comprises an air supply device, wherein the air supply device is used for flushing compressed air into the pressing air bag through the inflating nozzle, the pressing air bag expands to extrude the pressing strip and the fixing plate, the spring extends to drive the pressing strip to press downwards, and the pressing strip is matched with the knife rest to press the lining knife and the scraper tightly, so that the quick scraper installation is realized; when the doctor blade needs to be replaced, the pressing air bag is deflated, the spring contracts to drive the pressing strip, the clamping of the lining blade and the doctor blade is loosened, the doctor blade is replaced, the mounting precision is high, the replacement is convenient and quick, and the operation technical requirement is low.
As the preferred scheme of the quick scraper replacing device, the knife rest is provided with the supporting gasket which is arranged at the bottom of the scraper, so that the elasticity of the scraper is increased, the clamping is more stable, the abrasion of the scraper caused by installation, replacement and long-time use is reduced, and the service life is prolonged.
As a preferred scheme of the quick scraper replacing device, the scraper and the cutter groove are cleaned before the scraper is replaced, so that smoothness of installation of the scraper is prevented from being influenced by ink blocks, pollution among printing inks is avoided, the ink scraping effect is better, and the quality is higher.
As the preferred scheme of the quick scraper replacing device, the length of the part of the scraper extending out of the scraper groove is greater than that of the part of the lining cutter extending out of the scraper groove, so that the scraper is more stably clamped, the ink is more conveniently scraped, and the effect is better.
As the preferred scheme of the quick scraper replacing device, the pressing air bag is provided with an air inlet and an air outlet, so that the pressing air bag is favorable for inflating and deflating, the structure is more reasonable, and the operation is simpler and more convenient.
The utility model has the advantages that: the pressing bar of the utility model is arranged above the left end of the knife rest; the lining cutter is arranged below the pressing strip; the ink scraping knife is arranged below the lining knife; the fixing plate is arranged on the tool rest through a locking screw; a fixing screw is arranged on the left side of the fixing plate, and a pressing air bag is arranged at the contact part of the fixing plate and the pressing strip; a cutter groove is formed between the cutter frame and the pressing strip, and the lining cutter and the ink scraping cutter are arranged in the cutter groove; the lower part of the fixed screw is provided with a plurality of springs which are sleeved on the fixed screw; the upper end of the pressing bar is provided with a plurality of through holes, and the through holes correspond to the fixing screws; the lower end of the left side of the fixing plate is provided with a plurality of round holes, and the pressing air bag is arranged in the round holes; the number of the pressing air bags is a plurality, and the pressing air bags are uniformly distributed; still include air feeder, air feeder is used for dashing into compressed air to compressing tightly the gasbag, the utility model discloses can be used for the quick replacement device of ink scraping knife, simple structure is reasonable, and it is convenient quick to change, and the operation technical requirement is low, and the installation accuracy is high.
Drawings
Fig. 1 is a schematic structural view of a doctor blade quick change device in an embodiment.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1, a doctor blade quick replacement device comprises a blade holder 1, a batten 2, a lining blade 3, a doctor blade 4, a fixing plate 5, a locking screw 6, a fixing screw 7, a pressing air bag 8 and an inflating valve 11; the pressing strip 2 is arranged above the left end of the tool rest 1; the lining cutter 3 is arranged below the pressing strip 2; the doctor blade 4 is arranged below the liner blade 3; the fixing plate 5 is arranged on the tool rest 1 through the locking screw 6; the left side of fixed plate 5 be equipped with set screw 7, fixed plate 5 with the layering 2 the contact site be equipped with compress tightly gasbag 8, charging connector 11 connect fixed plate 5, charging connector 11 is connected with air duct 12, charging connector 11 pass through air duct 12 to compress tightly gasbag 8 and aerify.
In one embodiment of the quick doctor blade replacing device, a knife groove 9 is formed between the knife rest 1 and the pressing strip 2, the lining knife 3 and the doctor blade 4 are arranged in the knife groove 9, so that the installation is simpler and more convenient, the structure is firmer and more durable, the clamping is more stable, the doctor blade 4 is ensured to be smooth and has no warping and twisting, and the doctor effect is better.
In one embodiment of the quick doctor blade replacing device, a spring 10 is arranged at the lower part of the fixing screw 7, the spring 10 is sleeved on the fixing screw 7, a plurality of fixing screws 7 and springs 10 are arranged, so that compressed air can be conveniently filled into the pressing air bag 8, the pressing air bag 8 expands to extrude the pressing strip 2 and the fixing plate 5, the spring 10 extends to drive the pressing strip 2 to press downwards, the pressing strip 2 is matched with the knife rest 1 to press the lining knife 3 and the doctor blade 4, the quick installation of the doctor blade 4 is realized, the installation is more convenient and quick, time and labor are saved, the working efficiency is higher, and the installation precision is higher; when the doctor blade 4 needs to be replaced, the pressing air bag 8 is deflated, the spring 10 contracts to drive the pressing strip 2, the lining blade 3 and the doctor blade 4 are clamped, the replacement is quick and convenient, the operation is simple, and the technical requirement is low.
In one embodiment of the device for quickly replacing the doctor blade, the upper end of the pressing strip 2 is provided with a plurality of through holes, the through holes correspond to the fixing screws 7, the fixing plate 5 and the pressing strip 2 can be fixedly connected through the fixing screws 7 and the through holes conveniently, the mounting is simple and quick, the stress is balanced, the connection is firm and durable, and the clamping effect on the doctor blade 4 is better.
In one embodiment of the device for quickly replacing the doctor blade, the lower end of the left side of the fixing plate 5 is provided with a plurality of circular holes, and the pressing air bag 8 is arranged in the circular holes, so that the device is more compact and reasonable in arrangement and simpler and more convenient to operate.
In one embodiment of the device for quickly replacing the doctor blade, the pressing air bags 8 are provided with a plurality of pressing air bags 8 which are uniformly distributed, so that the force is more balanced and stable, the clamping effect is better, and the mounting precision is higher.
In one embodiment of the quick doctor blade replacing device, the quick doctor blade replacing device further comprises an air supply device, the air supply device is used for flushing compressed air into the pressing air bag 8 through the inflating nozzle 11, the pressing air bag 8 expands to extrude the pressing strip 2 and the fixing plate 5, the spring 10 extends to drive the pressing strip 2 to press downwards, the pressing strip 2 is matched with the knife rest 1 to press the lining knife 3 and the doctor blade 4 tightly, and the quick installation of the doctor blade 4 is realized; when the doctor blade 4 needs to be replaced, the pressing air bag 8 is deflated, the spring 10 contracts to drive the pressing strip 2, the clamping of the lining blade 3 and the doctor blade 4 is loosened, the doctor blade 4 is replaced, the mounting precision is high, the replacement is convenient and quick, and the operation technical requirement is low.
In one embodiment of the device for quickly replacing the doctor blade, the knife rest 1 is provided with a supporting gasket which is arranged at the bottom of the doctor blade 4, so that the elasticity of the doctor blade 4 is increased, the clamping is more stable, the abrasion of the installation, replacement and long-time use to the doctor blade 4 is reduced, and the service life is prolonged.
In one embodiment of the device for quickly replacing the doctor blade, the liner blade 3 and the blade groove 9 are cleaned before the doctor blade 4 is replaced, so that the ink block is prevented from influencing the smoothness of the installation of the doctor blade 4, the pollution among printing inks is avoided, the ink scraping effect is better, and the quality is higher.
In one embodiment of the device for quickly replacing the doctor blade, the length of the part of the doctor blade 4 extending out of the blade groove 9 is longer than the length of the part of the lining blade 3 extending out of the blade groove 9, so that the doctor blade 4 can be clamped more stably, the ink can be scraped more conveniently, and the effect is better.
In one embodiment of the device for quickly replacing the doctor blade, the pressing air bag 8 is provided with an air inlet and an air outlet, so that the pressing air bag 8 can be inflated and deflated conveniently, the structure is more reasonable, and the operation is simpler and more convenient.
The utility model is characterized in that the pressing bar 2 is arranged above the left end of the knife rest 1; the lining cutter 3 is arranged below the pressing strip 2; the doctor blade 4 is arranged below the lining blade 3; the fixing plate 5 is arranged on the tool rest 1 through a locking screw 6; a fixing screw 7 is arranged on the left side of the fixing plate 5, and a pressing air bag 8 is arranged at the contact part of the fixing plate 5 and the pressing strip 2; a cutter groove 9 is formed between the cutter frame 1 and the pressing strip 2, and the lining cutter 3 and the ink scraping cutter 4 are arranged in the cutter groove 9; the lower part of the fixing screw 7 is provided with a spring 10, the spring 10 is sleeved on the fixing screw 7, and the fixing screw 7 and the spring 10 are provided with a plurality of springs; the upper end of the pressing strip 2 is provided with a plurality of through holes, and the through holes correspond to the fixing screws 7; the lower end of the left side of the fixed plate 5 is provided with a plurality of round holes, and the pressing air bag 8 is arranged in the round holes; a plurality of pressing air bags 8 are arranged, and the pressing air bags 8 are uniformly distributed; still include air feeder, air feeder is used for rushing into compressed air to compressing tightly gasbag 8, during the use, it is clean to lining sword 3 and sword groove 9, set up lining sword 3 and ink scraping sword 4 in sword groove 9, the partial length that ink scraping sword 4 stretches out sword groove 9 is greater than the partial length that lining sword 3 stretches out sword groove 9, air feeder is for compressing tightly gasbag 8 and rushing into compressed air, compress tightly gasbag 8 inflation extrusion layering 2 and fixed plate 5, the extension of spring 10 drives layering 2 and pushes down, layering 2 cooperation knife rest 1 compresses tightly lining sword 3 and ink scraping sword 4, the realization is installed the quick replacement of ink scraping sword 4. The utility model discloses can be used for the quick replacement device of ink scraping knife, simple structure is reasonable, and it is convenient quick to change, and operation technical requirement is low, and the installation accuracy is high.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. A quick doctor blade replacing device is characterized in that: comprises a knife rest (1), a batten (2), a lining knife (3), a doctor blade (4), a fixing plate (5), a locking screw (6), a fixing screw (7), a pressing air bag (8) and an inflating nozzle (11); the pressing strip (2) is arranged above the left end of the knife rest (1); the lining cutter (3) is arranged below the pressing strip (2); the doctor blade (4) is arranged below the lining blade (3); the fixing plate (5) is arranged on the tool rest (1) through the locking screw (6); a fixing screw (7) is arranged on the left side of the fixing plate (5), and the pressing air bag (8) is arranged at the contact part of the fixing plate (5) and the pressing strip (2); the inflating nozzle (11) is connected with the fixing plate (5), the inflating nozzle (11) is connected with an air duct (12), and the inflating nozzle (11) inflates the pressing air bag (8) through the air duct (12).
2. The doctor blade quick change device of claim 1, wherein: a knife groove (9) is formed between the knife rest (1) and the pressing strip (2), and the lining knife (3) and the ink scraping knife (4) are arranged in the knife groove (9).
3. The doctor blade quick change device of claim 1, wherein: the lower part of the fixing screw (7) is provided with a spring (10), the spring (10) is sleeved on the fixing screw (7), and the fixing screw (7) and the spring (10) are provided with a plurality of springs.
4. The doctor blade quick change device of claim 1, wherein: the upper end of the pressing strip (2) is provided with a plurality of through holes, and the through holes correspond to the fixing screws (7).
5. The doctor blade quick change device of claim 1, wherein: the lower end of the left side of the fixing plate (5) is provided with a plurality of round holes, and the compressing air bag (8) is arranged in the round holes.
6. The doctor blade quick change device of claim 1, wherein: the pressing air bags (8) are provided with a plurality of pressing air bags (8), and the pressing air bags (8) are uniformly distributed.
7. The doctor blade quick change device of claim 1, wherein: the air supply device is used for filling compressed air into the pressing air bag (8) through the inflating nozzle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860874.9U CN211251803U (en) | 2019-10-31 | 2019-10-31 | Quick scraper replacing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860874.9U CN211251803U (en) | 2019-10-31 | 2019-10-31 | Quick scraper replacing device |
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| Publication Number | Publication Date |
|---|---|
| CN211251803U true CN211251803U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921860874.9U Active CN211251803U (en) | 2019-10-31 | 2019-10-31 | Quick scraper replacing device |
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| CN (1) | CN211251803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311962A (en) * | 2021-01-21 | 2022-04-12 | 广州市科柔机械设备有限公司 | Novel printing ink scraper device |
-
2019
- 2019-10-31 CN CN201921860874.9U patent/CN211251803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114311962A (en) * | 2021-01-21 | 2022-04-12 | 广州市科柔机械设备有限公司 | Novel printing ink scraper device |
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