CN212670136U - A scraper for coating device - Google Patents
A scraper for coating device Download PDFInfo
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- CN212670136U CN212670136U CN202020999180.XU CN202020999180U CN212670136U CN 212670136 U CN212670136 U CN 212670136U CN 202020999180 U CN202020999180 U CN 202020999180U CN 212670136 U CN212670136 U CN 212670136U
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- block
- air inlet
- limiting
- coating
- scraper
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- 239000011248 coating agent Substances 0.000 title claims abstract description 61
- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 238000007790 scraping Methods 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims description 45
- 239000003973 paint Substances 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 description 6
- 239000002345 surface coating layer Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of coating equipment, in particular to a scraping device for a coating device, which comprises a frame, wherein the frame is provided with a coating device for paper web coating, one side of the frame of the coating device is connected with a scraping block with a hollow inner part, two ends of the scraping block are communicated with an air inlet pipe, and one side of the scraping block facing a back roll is provided with a plurality of nozzles; the air inlet pipe is arranged on the rack, the rack is connected with a sliding seat in a sliding manner, the sliding seat is provided with two supporting rings which are in one-to-one correspondence with the air inlet pipe, the air inlet pipe penetrates through the corresponding supporting rings, and the supporting rings are fixedly connected with the air inlet pipe through a fastening device; the rack has been seted up the adjustment tank in one side at one of them seat place that slides, and the adjustment tank internal rotation is connected with the lead screw, and lead screw extending direction perpendicular to back roll extending direction slides the seat bottom surface and is equipped with the reciprocating slide block that is used for cooperating the lead screw, reciprocating slide block and lead screw threaded connection. The position of the scraping block on the rack is flexible and adjustable through the matching of the screw rod and the sliding seat.
Description
Technical Field
The utility model belongs to the technical field of the technique of coating equipment and specifically relates to a scraper for coating unit is related to.
Background
Blueprint paper is commonly called blue paper, is a chemical coating processing paper, is specially used for various engineering designs and machine-made blueprints, and is an essential article for production, scientific research and construction.
In the process of coating blueprint paper, in order to ensure that the coating is uniformly coated on the surface of a paper web, an air knife coater is generally used for coating the paper web, and the basic working principle of the air knife coater is that excessive coating is coated on the surface of the paper web through a feeding roller, then airflow is sprayed outwards through a plurality of narrow nozzles arranged on a scraping block to form an air knife, and the excessive coating on the surface of the paper web is scraped under the condition of not contacting the paper web by the existence of the air knife.
In the prior art, because the position of the coating block on the machine frame is relatively fixed, when the thickness of the paper web is changed or the coating property is changed, an air knife formed by the coating block cannot accurately scrape redundant coating on the surface of the paper web, and the final coating effect of the paper web is poor.
Therefore, a new technical solution is needed to solve the problem that the position of the paint block cannot be flexibly adjusted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be directed against the not enough that prior art exists, the utility model aims at providing a scraper for coating device, it enables the position of scribbling the material piece in the frame to become nimble adjustable.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a scraping device for a coating device comprises a rack, wherein a hopper for containing coating is arranged on the rack, a coating roller for coating the surface of a paper web is rotationally connected in the hopper, and the extending direction of the coating roller is vertical to the conveying direction of the paper web; the frame is connected with a backing roll for limiting the paper web and a traction roll for drawing the paper web, the extension direction of the backing roll and the extension direction of the traction roll are also vertical to the paper web transportation direction, the traction roll is positioned above the backing roll, and a material collecting plate for collecting redundant paint is arranged right below the backing roll; the paper web sequentially bypasses the coating roller, the backing roller and the traction roller; the frame is also connected with a scraping block with a hollow inner part on one side of the back roll away from the hopper, two ends of the scraping block are communicated with a rigid air inlet pipe, the air inlet pipe is connected with an air conveying hose for supplying high-pressure air, and one side of the scraping block facing the back roll is provided with a plurality of nozzles for spraying air flow; the air inlet pipe is arranged on the rack, the rack is connected with a sliding seat in a sliding manner, the sliding seat is provided with two supporting rings which are in one-to-one correspondence with the air inlet pipe, the air inlet pipe penetrates through the corresponding supporting rings, and the supporting rings are fixedly connected with the air inlet pipe through a fastening device; the rack has been seted up the adjustment tank in one side at one of them seat place that slides, and the adjustment tank internal rotation is connected with the lead screw, and lead screw extending direction perpendicular to back roll extending direction slides the seat bottom surface and is equipped with the reciprocating slide block that is used for cooperating the lead screw, reciprocating slide block and lead screw threaded connection.
By adopting the technical scheme, the paper web is drawn by the drawing roller, so that the paper web can sequentially bypass the coating roller and the backing roller; the coating roller is arranged for coating the lower surface of the paper web with the coating in the hopper, and the lower surface of the paper web can remain excessive coating; the back roll is arranged for limiting and bending the paper web, so that the scraping block can better scrape off the redundant paint; when the thickness of the paper web changes or the water content of the coating changes, the position of the sliding seat on the frame is adjusted by rotating the reciprocating screw rod, so that the distance between the scraping block and the back roller is adjusted, and the air scraper formed at the nozzle of the scraping block can accurately complete the scraping operation of the redundant coating.
The present invention may be further configured in a preferred embodiment as: limiting blocks are arranged on the peripheral walls of the two ends of the scraping block and correspond to the sliding seats one to one; the seat that slides is equipped with the limiting plate towards one side of stopper, and threaded connection has the spacing bolt that is used for cooperating the stopper on the limiting plate, and spacing bolt extends towards the stopper, extends the end and supports tightly with the stopper lateral wall.
Through adopting above-mentioned technical scheme, when paper web thickness changes or coating water content changes, for the operation of scraping that the unnecessary coating of comparatively accurate completion of the air knife that makes the material of scraping piece nozzle department formed, except that adjusting the interval between material of scraping piece and the backing roll, still need adjust the inclination of air knife with the help of the cooperation of spacing bolt and stopper sometimes.
The present invention may be further configured in a preferred embodiment as: the fastening device comprises a fastening screw hole arranged on the peripheral wall of the supporting ring, a fastening bolt is connected in the fastening screw hole in a threaded manner, the fastening bolt extends along the radial direction of the air inlet pipe and penetrates into the supporting ring, and the penetrating end is abutted against the peripheral wall of the air inlet pipe.
Through adopting above-mentioned technical scheme, after the position of user's adjustment spacing bolt and stopper, through screwing up fastening bolt, alright accomplish the firm connection between support ring and the intake pipe, this makes intake pipe and scraping piece can carry out the even movement along with the seat that slides on the frame together.
The present invention may be further configured in a preferred embodiment as: both sides of the material collecting plate and one end of the material collecting plate far away from the hopper are provided with baffle plates; the material collecting plate is abutted between the two limiting plates.
Through adopting above-mentioned technical scheme, utilize the existence of two limiting plates, carry on spacingly and regular to the board both sides that gather materials to this is convenient to gather materials the operation of getting in the frame and put.
The present invention may be further configured in a preferred embodiment as: the material collecting plate is obliquely arranged, one end of the material collecting plate extends into the hopper, and the position of one end, far away from the hopper, of the material collecting plate is higher than the position of one end, extending into the hopper, of the material collecting plate; the bottom surface of the material collecting plate is provided with a limit stop used for limiting the position of the material collecting plate, and the limit stop is abutted against the side wall of the hopper.
By adopting the technical scheme, the material collecting plate is obliquely arranged, and one end of the material collecting plate extends into the hopper; so strike off the back when unnecessary coating through air doctor, under coating self gravity and air doctor's dual function, originally drop in the coating on the album flitch can flow into the hopper again, this can avoid the waste of coating resource to a certain extent.
The present invention may be further configured in a preferred embodiment as: the sliding seat is connected with an arc-shaped angle measuring plate, and scales for measuring the inclination degree of the scraping block are arranged on one surface of the angle measuring plate, which faces the scraping block; be equipped with the indicateing arm that is used for cooperating the graduated flask on the intake pipe perisporium, indicateing arm and the one side butt of graduated flask orientation scraper piece.
Through adopting above-mentioned technical scheme, when the user is adjusting the inclination of air knife, because quantity scute and indicateing mark's existence, the user can comparatively directly perceivedly know the slope condition of current air knife, and this can be to a certain extent convenience of customers is to the angular adjustment of air knife.
The present invention may be further configured in a preferred embodiment as: a flow limiting plate is arranged in the scraping block, and a plurality of flow limiting through holes are uniformly formed in the flow limiting plate; the flow limiting plate is positioned between the nozzle and the pipe orifice of the air inlet pipe.
By adopting the technical scheme, the air in the scraping block can be uniformly dispersed by utilizing the plurality of flow-limiting through holes formed in the limiting plate, so that the sizes of the air scrapers formed by the plurality of nozzles of the scraping block can be consistent.
The present invention may be further configured in a preferred embodiment as: one side of the scraping block, which is close to the back roller, protrudes towards the back roller, the protruding part of the scraping block is called a flange part, and a plurality of nozzles are uniformly distributed on the flange part in a single row along the length direction of the scraping block.
Through adopting above-mentioned technical scheme, utilize the existence of flange portion, let the user when adjusting air knife inclination, can comparatively audio-visual observation nozzle position, so the user can have certain estimation to the effect scope of air knife, can accelerate user's adjustment efficiency to a certain extent like this.
To sum up, the utility model discloses a following beneficial technological effect:
1. the distance between the scraping block and the back roll is flexibly adjustable by the matching of the sliding seat and the screw rod;
2. the inclination angle of the air scraper is flexibly adjustable by the cooperation of the limiting bolt and the limiting block.
Drawings
FIG. 1 is a schematic structural diagram of the first embodiment;
FIG. 2 is a cross-sectional view of the first embodiment;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1;
FIG. 4 is an enlarged partial schematic view of portion B of FIG. 2;
FIG. 5 is a schematic structural view of the second embodiment;
fig. 6 is a partially enlarged schematic view of a portion C in fig. 5.
Reference numerals: 1. a frame; 2. a first limit roller; 3. a second limit roller; 4. a hopper; 5. a backing roll; 6. a scraper block; 7. a traction roller; 8. a paint motor; 9. a paint roller; 10. a limiting motor; 11. a sizing roller; 12. a traction motor; 13. a flange portion; 14. a nozzle; 15. an air inlet pipe; 16. a gas hose; 17. a restrictor plate; 18. a current limiting via; 19. a sliding seat; 20. a support ring; 21. a fastening device; 22. an adjustment groove; 23. a reciprocating slide block; 24. a screw rod; 25. a turntable; 26. a limiting block; 27. a limiting plate; 28. a limiting flat plate; 29. a limiting vertical plate; 30. a limit bolt; 31. fastening screw holes; 32. fastening a bolt; 33. a material collecting plate; 34. a baffle plate; 35. a limit stop block; 36. a support bar; 37. a angle measuring plate; 38. and (4) an indicator.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows: referring to fig. 1 and 2, for the utility model discloses a scraping device for coating device, including frame 1, be equipped with first spacing roller 2, the spacing roller 3 of second in proper order in the frame 1, be used for holding the hopper 4 of coating, be used for facilitating the backing roll 5 of paper web scraping operation and be used for scraping the material piece 6 of scraping of material operation to the paper web, frame 1 still is equipped with the carry over pinch rolls 7 that is used for pulling the paper web 5 oblique top.
The first limiting roller 2 and the second limiting roller 3 are rotatably connected to the frame 1, the extending direction of the first limiting roller 2 is perpendicular to the paper web conveying direction, and the paper web is wound on the upper part of the first limiting roller 2; the second limiting roller 3 extends in a direction perpendicular to the paper web conveying direction, and the paper web is wound on the lower portion of the second limiting roller 3.
A coating motor 8 is arranged on one side of the hopper 4 of the frame 1, an output shaft of the coating motor 8 is coaxially and fixedly connected with a coating roller 9, and the extending direction of the coating roller 9 is also vertical to the paper web conveying direction; the lower part of the applicator roll 9 is immersed in the coating material contained in the hopper 4 and the paper web is wound up on the upper part of the applicator roll 9.
The frame 1 is also provided with a limit motor 10, the output shaft of the limit motor 10 is coaxially and fixedly connected with the back roll 5, and the extending direction of the back roll 5 is also vertical to the paper web conveying direction; the frame 1 is also rotatably connected with a regulating roller 11 right above the backing roller 5, the extending direction of the regulating roller 11 is also vertical to the paper web conveying direction, the part of the paper web at the lower part of the backing roller 5 extends along the horizontal direction, and the part of the paper web at the side of the backing roller 5 far away from the hopper 4 extends along the vertical direction.
A traction motor 12 is arranged on the frame 1, an output shaft of the traction motor 12 is coaxially and fixedly connected with a traction roller 7, and the extension direction of the traction roller 7 is vertical to the paper web transportation direction.
The paper web passes through the first limiting roller 2, the second limiting roller 3, the coating roller 9, the backing roller 5 and the regulating roller 11 in sequence by virtue of the friction force between the peripheral wall of the traction roller 7 and the paper web; the first and second resist rollers 2 and 3 are provided to allow the lower surface of the web to sufficiently abut against the upper portion of the peripheral wall of the applicator roller 9, thereby allowing the surface of the web to be coated with a large amount of coating material.
The arrangement of the backing roll 5 and the regulating roll 11 is to adjust the transportation direction of the paper web, so that the paper web originally extending in the horizontal direction is converted into the paper web extending in the vertical direction, and the bending of the paper web is utilized to ensure that the air scraper formed at the scraping block 6 is tangent to the coating layer on the surface of the paper web, so that the air scraper can better complete the scraping operation of the paper web.
As shown in fig. 2 and 4, the scraper block 6 is hollow and protrudes toward the backing roll 5 at a side close to the backing roll 5, the protruding portion of the scraper block 6 is referred to as a flange portion 13, a plurality of nozzles 14 are opened on the flange portion 13, and the plurality of nozzles 14 are uniformly distributed on the flange portion 13 in a single row along the length direction of the scraper block 6.
The two ends of the scraper block 6 are communicated with air inlet pipes 15, and the air inlet pipes 15 are made of metal materials; both air inlet pipes 15 are connected with air hose 16 at the end far away from the scraper block 6.
High-pressure gas enters the air inlet pipe 15 from the air hose 16, then enters the inner cavity of the scraper block 6 through the air inlet pipe 15, and then is sprayed outwards through the narrow nozzle 14 of the flange part 13, and at the moment, the air scraper for scraping is formed at the nozzle 14.
Since high-pressure gas enters the scraper block 6 from both ends of the scraper block 6, the gas pressure at the center of the scraper block 6 is slightly higher than the gas pressure at both ends, which makes the nozzle 14 at the center of the flange portion 13 generate a stronger kinetic energy and a larger volume of air scraper than the nozzles 14 at both sides of the flange portion 13.
In order to balance the size of the air scraper generated by each nozzle 14 as much as possible and to achieve more uniform scraping treatment on the surface of the paper web, a flow restriction plate 17 is arranged on the inner wall of the scraping block 6, the flow restriction plate 17 is positioned between the nozzles 14 and the pipe orifice of the air inlet pipe 15, and a plurality of flow restriction through holes 18 with the same diameter are uniformly formed in the flow restriction plate 17.
The high-pressure gas entering the scraper block 6 is uniformly diffused to a certain extent by the presence of the plurality of flow-restricting through-holes 18, which prevents the air scrapers formed at the nozzles 14 from having too significant size differences.
As shown in fig. 2 and 3, in order to facilitate the position adjustment of the scraping block 6, so that the air scraper formed at the nozzle 14 can be used for scraping paper webs with different thicknesses, sliding seats 19 are also slidably connected to both sides of the frame 1, and supporting rings 20 are arranged on the sliding seats 19; the air inlet pipe 15 axially penetrates through a support ring 20 of the corresponding sliding seat 19, and a fastening device 21 for connecting the support ring 20 and the air inlet pipe 15 is further arranged on the outer wall of the support ring 20.
An adjusting groove 22 is formed in one side of the frame 1 where one sliding seat 19 is located, and a reciprocating slide block 23 is correspondingly arranged on one side, facing the adjusting groove 22, of the sliding seat 19; a screw rod 24 for controlling the movement of the scraper block 6 is rotationally connected in the adjusting groove 22, the extending direction of the screw rod 24 is vertical to the extending direction of the back roll 5, and the reciprocating slide block 23 is in threaded connection with the screw rod 24. One end of the screw rod 24 penetrates out of the adjusting groove 22, and the penetrating end is coaxially and fixedly connected with a rotary disc 25.
The rotation of the screw rod 24 is controlled by rotating the rotary table 25, when the coating layer on the surface of the paper web is too thick, the position of the scraping block 6 is axially moved along the screw rod 24, and the flange part 13 of the scraping block 6 is gradually close to the position of the back roll 5; and when the surface coating layer of the paper web is too thin, the position of the scraping block 6 is moved along the axial direction of the screw rod 24, so that the flange part 13 of the scraping block 6 is gradually far away from the position of the back roll 5.
In order to further adjust the position of the air scraper, limiting blocks 26 are arranged on the peripheral walls of the two ends of the scraping block 6; one side that the seat 19 that slides is close to stopper 26 is equipped with limiting plate 27, and limiting plate 27 includes the spacing flat board 28 that extends along the horizontal direction and the spacing riser 29 that extends along vertical direction, and threaded connection has stop bolt 30 on the spacing riser 29, and stop bolt 30 extends towards stopper 26, and the end of extending supports tightly with stopper 26 lateral wall.
When the coating layer on the surface of the paper web is too thick, the limiting bolt 30 is screwed to enable the limiting block 26 to move towards the position close to the back roll 5 along the circumferential direction of the scraping block 6; when the coating layer on the surface of the paper web is too thin, the limiting bolt 30 is screwed to move the limiting block 26 along the circumferential direction of the scraping block 6 to a position far away from the back roll 5.
The fastening device 21 includes a fastening screw hole 31 opened right above the peripheral wall of the support ring 20, a fastening bolt 32 is connected to the fastening screw hole 31 through an internal thread, the fastening bolt 32 penetrates downward into the support ring 20, and the penetrating end and the peripheral wall of the air inlet pipe 15 are abutted against each other.
After the positions of the limiting block 26 and the limiting bolt 30 are adjusted, the fastening bolt 32 can be screwed down to realize the tight connection between the sliding seat 19 and the scraping block 6; the user can thus complete the displacement and adjustment of the scraper block 6 by turning the screw 24.
The existence of the material collecting plate 33 is utilized to collect the redundant paint scraped by the air scraper; the material collecting plate 33 is abutted between the two limiting flat plates 28, so as to regulate the position of the material collecting plate 33; as time goes by, a layer of hard dirt adheres to the inevitable bottom of the surface of the aggregate plate 33, at this time, the aggregate plate 33 needs to be taken out of the rack 1, and after the aggregate plate 33 is cleaned, the aggregate plate 33 is put back to the rack 1; in the process of placing the material collecting plate 33 back into the frame 1, the user can easily place the material collecting plate 33 back into the original position by means of the positioning effect of the two limiting flat plates 28.
The air scraper requires a coating with a large water content, so that the coating has high flowability; in order to minimize unnecessary consumption of the coating material, the material collecting plate 33 is inclined, and one end of the material collecting plate 33 is extended into the hopper 4, and the position of the end of the material collecting plate 33 extended into the hopper 4 is lower than the position of the end thereof far away from the hopper 4.
By means of the gravity of the paint and the air impact of the air scraper, the paint originally falling on the surface of the material collecting plate 33 can flow back to the hopper 4 along the inclined surface of the material collecting plate 33.
In order to ensure the stable placement of the material collecting plate 33 on the frame 1, a limit stop 35 is further arranged on the bottom surface of the material collecting plate 33, and the limit stop 35 is abutted and tightly abutted on the side wall of the hopper 4.
The working principle is as follows:
firstly screwing the limit bolt 30, and adjusting the position of the scraping block 6 to ensure that the orientation of the nozzle 14 on the scraping block 6 is tangent to the surface coating layer of the paper web; and then the fastening bolt 32 is tightened to complete the firm connection of the air inlet pipe 15 and the sliding seat 19.
Then high-pressure gas is sent into the scraping block 6 through the gas hose 16, so that the nozzle 14 of the scraping block 6 forms an air scraper; the traction motor 12, paint motor 8 and limit motor 10 are then started.
When the coating layer on the surface of the paper web is too thick, the sliding block can move towards the direction close to the back roll 5 together with the scraping block 6 by rotating the screw rod 24; when the surface coating layer of the paper web is too thin, the sliding block can also move in the direction away from the backing roll 5 together with the scraper block 6 by rotating the screw rod 24.
Example two: as shown in fig. 5 and fig. 6, the difference from the first embodiment is that two support rods 36 are arranged on the sliding seat 19, both the two support rods 36 extend upwards along the vertical direction, the extending ends of the two support rods 36 are connected with the same angle gauge plate 37 together, the angle gauge plate 37 is arc-shaped, and the side of the angle gauge plate 37 facing the scraper block 6 is provided with scales for measuring the inclination degree of the scraper block 6; the air inlet pipe 15 is positioned below the angle plate 37, an indicator mark 38 is connected to the peripheral wall of the air inlet pipe 15, and the indicator mark 38 is abutted to one surface of the angle plate 37 with scales.
When the angle of the scraping block 6 is adjusted, the user can intuitively understand the angle difference between the scraping block 6 before and after adjustment through the matching of the angle measuring plate 37 and the indicator 38, so that the adjustment time of the user can be saved to a certain extent.
The working principle is as follows:
firstly screwing the limit bolt 30, and adjusting the inclination degree of the scraping block 6 according to the angle value indicated by the scale surface of the angle gauge plate 37 by the indicator 38, so that the orientation of the nozzle 14 on the scraping block 6 is tangent to the surface coating layer of the paper web; and then the fastening bolt 32 is tightened to complete the firm connection of the air inlet pipe 15 and the sliding seat 19.
Then high-pressure gas is sent into the scraping block 6 through the gas hose 16, so that the nozzle 14 of the scraping block 6 forms an air scraper; the traction motor 12, paint motor 8 and limit motor 10 are then started.
When the coating layer on the surface of the paper web is too thick, the sliding block can move towards the direction close to the back roll 5 together with the scraping block 6 by rotating the screw rod 24; when the surface coating layer of the paper web is too thin, the sliding block can also move in the direction away from the backing roll 5 together with the scraper block 6 by rotating the screw rod 24.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A scraping device for a coating device comprises a rack (1), wherein a hopper (4) for containing coating is arranged on the rack (1), a coating roller (9) for coating the surface of a paper web with the coating is rotatably connected to the hopper (4), and the extending direction of the coating roller (9) is vertical to the conveying direction of the paper web; a back roll (5) used for limiting the paper web and a traction roll (7) used for drawing the paper web are connected to the rack (1), the extending direction of the back roll (5) and the extending direction of the traction roll (7) are also perpendicular to the paper web conveying direction, the traction roll (7) is positioned above the back roll (5), and a material collecting plate (33) used for collecting redundant coating is arranged under the back roll (5) of the rack (1); the paper web sequentially bypasses the coating roller (9), the backing roller (5) and the traction roller (7); the method is characterized in that: a scraping block (6) with a hollow inner part is further connected to one side, away from the hopper (4), of the back roll (5) on the rack (1), two ends of the scraping block (6) are communicated with rigid air inlet pipes (15), air conveying hoses (16) used for supplying high-pressure air are connected to the air inlet pipes (15), and a plurality of nozzles (14) used for spraying air flow are arranged on one side, facing the back roll (5), of the scraping block (6); the air inlet pipe support is characterized in that a sliding seat (19) is connected to the rack (1) in a sliding manner, two sliding seats (19) are arranged and correspond to the air inlet pipes (15) one by one, supporting rings (20) are arranged on the sliding seats (19), the air inlet pipes (15) penetrate through the corresponding supporting rings (20), and the supporting rings (20) are fixedly connected with the air inlet pipes (15) through fastening devices (21); the adjusting groove (22) is formed in one side, where one sliding seat (19) is located, of the rack (1), the screw rod (24) is connected to the adjusting groove (22) in a rotating mode, the extending direction of the screw rod (24) is perpendicular to the extending direction of the back roller (5), the reciprocating slide block (23) used for being matched with the screw rod (24) is arranged on the bottom face of the sliding seat (19), and the reciprocating slide block (23) is in threaded connection with the screw rod (24).
2. A scraper device for a paint application apparatus according to claim 1, wherein: the peripheral walls of two ends of the scraper block (6) are respectively provided with a limiting block (26), and the limiting blocks (26) correspond to the sliding seats (19) one by one; one side of the sliding seat (19) facing the limiting block (26) is provided with a limiting plate (27), the limiting plate (27) is connected with a limiting bolt (30) used for being matched with the limiting block (26) in a threaded mode, the limiting bolt (30) extends towards the limiting block (26), and the extending end is abutted to the side wall of the limiting block (26).
3. A scraper device for a paint application apparatus according to claim 2, wherein: the fastening device (21) comprises a fastening screw hole (31) formed in the peripheral wall of the support ring (20), a fastening bolt (32) is connected to the fastening screw hole (31) in a threaded mode, the fastening bolt (32) extends along the radial direction of the air inlet pipe (15) and penetrates into the support ring (20), and the penetrating end abuts against the peripheral wall of the air inlet pipe (15).
4. A scraper device for a paint application apparatus according to claim 2, wherein: baffles (34) are arranged on both sides of the material collecting plate (33) and one end of the material collecting plate far away from the hopper (4); the material collecting plate (33) is abutted between the two limit plates (27).
5. A scraper device for a paint application apparatus according to claim 4, characterised in that: the material collecting plate (33) is obliquely arranged, one end of the material collecting plate extends into the hopper (4), and the position of one end, far away from the hopper (4), of the material collecting plate (33) is higher than the position of one end, extending into the hopper (4), of the material collecting plate; the bottom surface of the material collecting plate (33) is provided with a limit stop (35) used for limiting the position of the material collecting plate (33), and the limit stop (35) is abutted against the side wall of the hopper (4).
6. A scraper device for a paint application apparatus according to claim 2, wherein: an arc-shaped angle measuring plate (37) is connected to the sliding seat (19), and scales for measuring the inclination degree of the scraper block (6) are arranged on one surface, facing the scraper block (6), of the angle measuring plate (37); the peripheral wall of the air inlet pipe (15) is provided with an indicator (38) used for being matched with the angle measuring plate (37), and the indicator (38) is abutted against one surface, facing the scraper block (6), of the angle measuring plate (37).
7. A scraper device for a paint application apparatus according to claim 1, wherein: a flow limiting plate (17) is arranged in the scraper block (6), and a plurality of flow limiting through holes (18) are uniformly formed in the flow limiting plate (17); the flow restriction plate (17) is positioned between the nozzle (14) and the orifice of the air inlet pipe (15).
8. A scraper device for a paint application apparatus according to claim 1, wherein: one side of the scraping block (6) close to the back roller (5) is protruded towards the back roller (5), the protruded part of the scraping block (6) is called a flange part (13), and a plurality of nozzles (14) are uniformly distributed on the flange part (13) in a single row along the length direction of the scraping block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020999180.XU CN212670136U (en) | 2020-06-03 | 2020-06-03 | A scraper for coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020999180.XU CN212670136U (en) | 2020-06-03 | 2020-06-03 | A scraper for coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212670136U true CN212670136U (en) | 2021-03-09 |
Family
ID=74821737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020999180.XU Expired - Fee Related CN212670136U (en) | 2020-06-03 | 2020-06-03 | A scraper for coating device |
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| Country | Link |
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| CN (1) | CN212670136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152148A (en) * | 2021-04-29 | 2021-07-23 | 江苏富星纸业有限公司 | High-efficient coating unit is used in production of coating white board paper |
-
2020
- 2020-06-03 CN CN202020999180.XU patent/CN212670136U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152148A (en) * | 2021-04-29 | 2021-07-23 | 江苏富星纸业有限公司 | High-efficient coating unit is used in production of coating white board paper |
| CN113152148B (en) * | 2021-04-29 | 2021-11-12 | 江苏富星纸业有限公司 | High-efficient coating unit is used in production of coating white board paper |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210309 |