Device for preventing dry friction of scraper of coating machine

Abstract

The utility model relates to the technical field of coating machines, and discloses a device for preventing dry friction of a scraper of a coating machine, which comprises a fixed plate, the bottom of the fixed plate is fixedly connected with supporting legs, the outer side of the fixed plate is fixedly connected with an air cylinder, and the output end of the air cylinder is fixedly connected with a movable plate. A connecting block is slidably connected to the middle of the movable plate, a bolt is slidably connected to the middle of the movable plate, the bolt is in threaded connection with the connecting block, and a mounting plate is fixedly connected to the side, away from the movable plate, of the connecting block. According to the device, water can be sprayed to the two sides of the scraper through the atomization nozzles by driving the water pump, then the scraper can be protected, the service life of the scraper can be prolonged, the circular gear can drive the rack, the limiting block and the sleeve shell to move through the driving motor, and the distance between the two atomization nozzles can be adjusted; and therefore, when the scraper acts on paper with different sizes, the lubricating work of the scraper can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to a device for preventing dry friction of a coating machine scraper. Background Art

[0002] Coating machines are mainly used for surface coating production of films, papers, etc. This machine coats the rolled substrate with a layer of glue, coating or ink with specific functions, and cuts it into sheets or rolls it up after drying. It uses a special multi-functional coating head and can achieve various forms of surface coating. The reel and unreel of the coating machine are equipped with full-speed automatic film splicing mechanism and PLC program tension closed-loop automatic control.

[0003] The existing coating machine transfers the coating of the calendered base paper onto the base paper on the coating back roller evenly and smoothly through a scraper coater, and the coating scraper installed on the coating head scrapes off the excess coating, and the excess coating scraped off flows to the feed trough through the skip screen to be recycled. The relationship between the coating scraper blade and the base paper is pressure contact, because the coating will cause sticking to the guide roller behind to form paper defects after reaching the edge, so there is about 3 cm of no coating on both sides of the base paper. Therefore, in the process of the scraper contacting with the base paper, the scraper blade directly contacts the base paper and will gradually wear, especially at the edge of the base paper without coating for lubrication and cooling, the wear will be aggravated, which will seriously reduce the service life of the scraper. For this reason, a device for preventing dry friction of the coating machine scraper is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a device to prevent dry friction of the coating machine scraper, aiming to improve the problem in the prior art that when the scraper is in contact with the base paper, the scraper edge directly contacts the base paper and will gradually wear out, especially at the edge of the base paper where there is no coating for lubrication and the wear will be aggravated by cooling, which will seriously reduce the service life of the scraper.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for preventing dry friction of a coating machine scraper, comprising a fixed plate, the bottom of the fixed plate is fixedly connected to a supporting leg, the outer side of the fixed plate is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a movable plate, the middle part of the movable plate is slidably connected to a connecting block, the middle part of the movable plate is slidably connected to a bolt, the bolt and the connecting block are threadedly connected, the side of the connecting block away from the movable plate is fixedly connected to a mounting plate, the other side of the mounting plate is fixedly connected to a scraper, the top of the fixed plate is fixedly connected to a water tank, the inside of the water tank is fixedly connected to a water pump, the output end of the water pump is fixedly connected to a water pipe, the middle part of the water pipe is fixedly connected to two telescopic hoses, the other end of the telescopic hose is fixedly connected to an atomizing nozzle, and the top of the water tank is fixedly connected to an adjustment component.

[0006] As a further description of the above technical solution:

[0007] The adjusting assembly includes a shell, which is fixedly connected to the top of the water tank, a circular gear is rotatably connected inside the shell, two racks are slidably connected inside the shell, both of the racks are meshed with the circular gear, the bottom of the rack is fixedly connected, the sliding connection is between the shell and the middle of the water tank, the bottom is fixedly connected to a sleeve, the sleeve is slidably connected to the middle of the water tank, the atomizing nozzle is fixedly connected to the middle of the sleeve, and the top of the shell is fixedly connected to a driving assembly.

[0008] As a further description of the above technical solution:

[0009] The driving assembly comprises a motor, the motor is fixedly connected to the top of the housing, and the circular gear is fixedly connected to the output end of the motor.

[0010] As a further description of the above technical solution:

[0011] An L-shaped connecting rod is fixedly connected to the bottom of the fixed plate, the other end of the L-shaped connecting rod is fixedly connected to a fixed block, the interior of the fixed block is fixedly connected to a compression spring, the other end of the compression spring is fixedly connected to a T-shaped scraper, the T-shaped scraper is slidably connected to the middle part of the fixed block, and the outer side of the T-shaped scraper is fixedly connected to a limiting component.

[0012] As a further description of the above technical solution:

[0013] The limiting assembly comprises a limiting block, the limiting block is fixedly connected to the outer side of the T-shaped scraper, a limiting groove is provided in the middle of the fixed block, and the limiting block is slidably connected to the middle of the limiting groove.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the support leg is fixedly connected with a support plate, and the middle part of the support plate is slidably connected with a screw.

[0016] As a further description of the above technical solution:

[0017] The T-shaped scraper is provided with an arc on one side close to the fixing plate.

[0018] As a further description of the above technical solution:

[0019] The middle part of the water storage tank is slidably connected with a water blocking plug.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by driving the water pump and under the action of the water pipe and the telescopic hose, water can be sprayed to both sides of the scraper through the atomizing nozzle, thereby protecting the scraper and improving the service life of the scraper. By driving the motor, the circular gear can drive the rack to move, thereby allowing the limit block and the sleeve to move at the same time. The distance between the two atomizing nozzles can be adjusted according to the size of the paper, thereby ensuring the lubrication of the scraper when the scraper acts on papers of different sizes.

[0022] 2. In the utility model, the T-shaped scraper can be brought into contact with the scraper under the action of the compression spring. When the cylinder retracts the scraper into the fixed plate, the paint sticking to the outer periphery of the scraper can be cleaned by the T-shaped scraper. The T-shaped scraper can be limited by the limit block and the limit groove, thereby preventing the compression spring from being deformed and damaged due to tilting and squeezing, thereby increasing the service life of the compression spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional schematic diagram of a device for preventing dry friction of a coating machine scraper proposed by the utility model;

[0024] Figure 2 This is a schematic structural diagram of a connecting block of a device for preventing dry friction of a coating machine scraper proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of a motor of a device for preventing dry friction of a coating machine scraper proposed by the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of an atomizing nozzle of a device for preventing dry friction of a coating machine scraper proposed by the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of a telescopic hose of a device for preventing dry friction of a coating machine scraper proposed by the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of a limit block of a device for preventing dry friction of a coating machine scraper proposed by the utility model;

[0029] Figure 7 The utility model discloses a schematic diagram of the structure of a scraper of a device for preventing dry friction of a coating machine scraper.

[0030] Legend:

[0031] 1. Fixed plate; 2. Support leg; 3. Cylinder; 4. Movable plate; 5. Water blocking plug; 6. Mounting plate; 7. Connecting block; 8. Scraper; 9. Bolt; 10. Water storage tank; 11. Water pump; 12. Water pipe; 13. Telescopic hose; 14. Atomizing nozzle; 15. Circular gear; 16. Rack; 17. Limit block; 18. Sleeve; 19. Shell; 20. Motor; 21. L-shaped connecting rod; 22. Fixed block; 23. Compression spring; 24. T-shaped scraper; 25. Limit block; 26. Limit groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-Figure 3 The utility model provides an embodiment: a device for preventing dry friction of a coating machine scraper, comprising a fixed plate 1, a supporting leg 2 is fixedly connected to the bottom of the fixed plate 1, a cylinder 3 is fixedly connected to the outer side of the fixed plate 1, a movable plate 4 is fixedly connected to the output end of the cylinder 3, a connecting block 7 is slidably connected to the middle of the movable plate 4, a bolt 9 is slidably connected to the middle of the movable plate 4, the bolt 9 and the connecting block 7 are threadedly connected, a mounting plate 6 is fixedly connected to the side of the connecting block 7 away from the movable plate 4, and a scraper 8 is fixedly connected to the other side of the mounting plate 6, the movable plate 4 and the connecting block 7 can be separated by rotating the bolt 9, at which time the scraper 8 can be removed, and at the same time, the extension and retraction of the scraper 8 can be controlled under the action of the cylinder 3, so that the scraper 8 can be extended and contacted with the transported paper.

[0034] Reference Figure 2 and Figure 4 A water tank 10 is fixedly connected to the top of the fixed plate 1, and a water blocking plug 5 is slidably connected to the middle of the water tank 10. The water tank 10 can be closed by the water blocking plug 5, thereby preventing impurities from entering the water tank 10 and polluting the water inside the water tank 10. A water pump 11 is fixedly connected to the inside of the water tank 10, and the output end of the water pump 11 is fixedly connected to a water pipe 12. Two telescopic hoses 13 are fixedly connected to the middle of the water pipe 12, and the other end of the telescopic hose 13 is fixedly connected to an atomizing nozzle 14. By driving the water pump 11, the water inside the water tank 10 can enter the water pipe 12. At this time, under the action of the telescopic hose 13, the water inside the water pipe 12 can flow into the two atomizing nozzles 14 respectively and spray toward the area where the scraper 8 contacts the paper, thereby reducing the wear of the scraper 8 and increasing the service life of the scraper 8. An adjusting component is fixedly connected to the top of the water tank 10.

[0035] Reference Figure 3 , Figure 5 and Figure 6 The adjusting component includes a shell 19, which is fixedly connected to the top of the water tank 10. The shell 19 is rotatably connected to a circular gear 15 inside. Two racks 16 are slidably connected to the inside of the shell 19. The two racks 16 are meshed with the circular gear 15. The bottom of the rack 16 is fixedly connected to 17, and 17 is slidably connected to the middle of the shell 19 and the water tank 10. The bottom of 17 is fixedly connected to a sleeve 18, and the sleeve 18 is slidably connected to the middle of the water tank 10. The atomizing nozzle 14 is fixedly connected to the middle of the sleeve 18. When the circular gear 15 rotates, the two racks 16 can move relative to each other. At this time, under the action of 17, the sleeve 18 can drive the atomizing nozzle 14 to move, and then the spacing between the two atomizing nozzles 14 can be adjusted according to the size of the paper, and water can be sprayed at the position where the scraper 8 contacts the base paper area, which can effectively lubricate the scraper 8 and the undyed area of ​​the paper.

[0036] Reference Figure 3 , Figure 5 and Figure 6 A driving assembly is fixedly connected to the top of the shell 19, and the driving assembly includes a motor 20. The motor 20 is fixedly connected to the top of the shell 19, and the circular gear 15 is fixedly connected to the output end of the motor 20. The circular gear 15 can be rotated by driving the motor 20, so that the distance between the two atomizing nozzles 14 can be conveniently adjusted.

[0037] Reference Figure 1 and Figure 7 The bottom of the fixed plate 1 is fixedly connected with an L-shaped connecting rod 21, and the other end of the L-shaped connecting rod 21 is fixedly connected with a fixed block 22. A compression spring 23 is fixedly connected inside the fixed block 22, and the other end of the compression spring 23 is fixedly connected with a T-shaped scraper 24. The T-shaped scraper 24 is slidably connected to the middle part of the fixed block 22. An arc is provided on the side of the T-shaped scraper 24 close to the fixed plate 1. When the scraper 8 enters the fixed plate 1, the compression spring 23 can make the T-shaped scraper 24 contact with the scraper 8 at this time, so that the paint sticking to the bottom of the scraper 8 can be scraped off. At the same time, when the scraper 8 is extended, the scraper 8 can compress the T-shaped scraper 24 due to the set arc, so as to avoid the T-shaped scraper 24 from affecting the extension and retraction of the scraper 8. The outer side of the T-shaped scraper 24 is fixedly connected with a limiting component.

[0038] Reference Figure 7The limiting assembly includes a limiting block 25, which is fixedly connected to the outer side of the T-shaped scraper 24. A limiting groove 26 is provided in the middle of the fixed block 22. The limiting block 25 is slidably connected to the middle of the limiting groove 26. The T-shaped scraper 24 can be limited by the limiting block 25 and the limiting groove 26, so that the T-shaped scraper 24 can only move vertically, and at the same time, the compression spring 23 is prevented from being deformed and damaged due to tilting and squeezing.

[0039] Reference Figure 1 and Figure 2 The bottom end of the supporting leg 2 is fixedly connected with a supporting plate, and the middle part of the supporting plate is slidably connected with a screw, so that the stability of the fixing plate 1 can be improved by the action of the supporting plate and the screw.

[0040] Working principle: When in use, the water stored in the water storage tank 10 can be driven into the water pipe 12 by driving the water pump 11. At this time, under the action of the telescopic hose 13, the water can be sprayed to both sides of the scraper 8 through the atomizing nozzle 14, thereby protecting the scraper 8. At the same time, the circular gear 15 can drive the rack 16 to move by driving the motor 20. When the rack 16 moves, 17 can drive the sleeve 18 and the atomizing nozzle 14 in the middle of the sleeve 18 to move, thereby adjusting the distance between the two atomizing nozzles 14 according to the size of the paper, thereby ensuring the lubrication of the scraper 8 when the scraper 8 acts on papers of different sizes;

[0041] Among them, under the action of the compression spring 23, the T-shaped scraper 24 can be brought into contact with the scraper 8, and then when the cylinder 3 is driven to retract the scraper 8 into the fixed plate 1, the T-shaped scraper 24 can clean the paint sticking to the periphery of the scraper 8. At the same time, when the T-shaped scraper 24 is worn, the T-shaped scraper 24 can be pushed out under the action of the compression spring 23, thereby improving the cleaning effect of the T-shaped scraper 24 and the service life of the T-shaped scraper 24. The T-shaped scraper 24 can be limited by the limit block 25 and the limit groove 26, thereby preventing the T-shaped scraper 24 from tilting when moving, and at the same time avoiding the problem of deformation and damage caused by the compression spring 23 being squeezed by the tilt, thereby improving the service life of the compression spring 23.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preventing dry friction of a coating machine scraper, comprising a fixing plate (1), characterized in that: The bottom of the fixed plate (1) is fixedly connected to a support leg (2), the outer side of the fixed plate (1) is fixedly connected to a cylinder (3), the output end of the cylinder (3) is fixedly connected to a movable plate (4), the middle part of the movable plate (4) is slidably connected to a connecting block (7), the middle part of the movable plate (4) is slidably connected to a bolt (9), the bolt (9) and the connecting block (7) are threadedly connected, the side of the connecting block (7) away from the movable plate (4) is fixedly connected to a mounting plate (6), the other side of the mounting plate (6) is fixedly connected to a scraper (8), the top of the fixed plate (1) is fixedly connected to a water storage tank (10), the inside of the water storage tank (10) is fixedly connected to a water pump (11), the output end of the water pump (11) is fixedly connected to a water pipe (12), the middle part of the water pipe (12) is fixedly connected to two telescopic hoses (13), the other end of the telescopic hose (13) is fixedly connected to an atomizing nozzle (14), and the top of the water storage tank (10) is fixedly connected to an adjustment component.

2. The device for preventing dry friction of a coating machine blade according to claim 1, characterized in that: The regulating assembly comprises a shell (19), wherein the shell (19) is fixedly connected to the top of the water storage tank (10), a circular gear (15) is rotatably connected inside the shell (19), two racks (16) are slidably connected inside the shell (19), both of the two racks (16) are meshed with the circular gear (15), the bottom of the rack (16) is fixedly connected to (17), the (17) is slidably connected to the middle of the shell (19) and the water storage tank (10), the bottom of the (17) is fixedly connected to a casing (18), the casing (18) is slidably connected to the middle of the water storage tank (10), the atomizing nozzle (14) is fixedly connected to the middle of the casing (18), and the top of the shell (19) is fixedly connected to a driving assembly.

3. The device for preventing dry friction of a coating machine blade according to claim 2, characterized in that: The driving assembly comprises a motor (20), the motor (20) is fixedly connected to the top of the housing (19), and the circular gear (15) is fixedly connected to the output end of the motor (20).

4. The device for preventing dry friction of a coating machine blade according to claim 1, characterized in that: An L-shaped connecting rod (21) is fixedly connected to the bottom of the fixing plate (1); the other end of the L-shaped connecting rod (21) is fixedly connected to a fixing block (22); a compression spring (23) is fixedly connected inside the fixing block (22); the other end of the compression spring (23) is fixedly connected to a T-shaped scraper (24); the T-shaped scraper (24) is slidably connected to the middle of the fixing block (22); and the outer side of the T-shaped scraper (24) is fixedly connected to a limiting assembly.

5. The device for preventing dry friction of a coating machine blade according to claim 4, characterized in that: The limiting assembly comprises a limiting block (25), the limiting block (25) being fixedly connected to the outer side of the T-shaped scraper (24), a limiting groove (26) being provided in the middle of the fixed block (22), and the limiting block (25) being slidably connected to the middle of the limiting groove (26).

6. The device for preventing dry friction of a coating machine blade according to claim 1, characterized in that: The bottom end of the support leg (2) is fixedly connected to a support plate, and the middle part of the support plate is slidably connected to a screw.

7. The device for preventing dry friction of a coating machine blade according to claim 4, characterized in that: The T-shaped scraper (24) is provided with an arc on one side close to the fixed plate (1).

8. The device for preventing dry friction of a coating machine blade according to claim 1, characterized in that: A water blocking plug (5) is slidably connected to the middle portion of the water storage tank (10).

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