Scraper structure and coating machine

Abstract

The scraper structure comprises a main scraper and a pre-scraping strip assembly, the pre-scraping strip assembly comprises a pre-scraping strip and an adjusting unit, the pre-scraping strip is located below the main scraper, the distance between the pre-scraping strip and a printing roller is larger than the distance between the main scraper and the printing roller, and the adjusting unit is located below the pre-scraping strip. The two ends of the pre-scraping strip are each provided with one adjusting unit, the adjusting units are used for driving the pre-scraping strip to generate displacement, and when only one adjusting unit drives the pre-scraping strip to generate displacement, the adjusting units are used for adjusting the inclination angle of the pre-scraping strip relative to a printing roller; and when the two adjusting units simultaneously drive the pre-scraping strip to generate displacement, the distance between the pre-scraping strip and the printing roller is adjusted. The coating machine comprises a rack, a plate roller, an open type material box and a scraper structure. According to the utility model, the inclination angles and positions of the end surface scraper and the pre-scraping strip are adjusted through the adjusting unit, so that the phenomena of material overturning and slurry splashing of the main scraper are reduced, and the coating appearance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, in particular to a scraper structure and a coating machine. Background Art

[0002] Coating machines are mainly used for surface coating production of films, papers, etc. Coating machines coat the rolled substrate with a layer of glue, paint or ink with specific functions, and then rewind it after drying. During the use of the coating machine, the two sides of the coating roller and the scraper bottom plate form a small waterfall of slurry, which is prone to slurry splashing; in addition, after the coating is applied to the film, the coating needs to be scraped flat to meet the coating thickness requirements. During the high-speed coating process, the existing open material box and scraper structure are prone to slurry flipping when the slurry viscosity increases and the slurry hits the scraper. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a scraper structure and a coating machine, which adjusts the inclination angle and position of the end scraper and the pre-scraping strip through an adjustment unit, controls the thickness of the material layer on the plate roller, reduces the main scraper flipping phenomenon and slurry splashing phenomenon, and thus improves the coating appearance.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A scraper structure is used to scrape off excess slurry on a plate roller, comprising a main scraper and a pre-scraping bar assembly, wherein the pre-scraping bar assembly comprises a pre-scraping bar and an adjusting unit, wherein the pre-scraping bar is located below the main scraper, and the distance between the pre-scraping bar and the plate roller is greater than the distance between the main scraper and the plate roller, and an adjusting unit is respectively provided at both ends of the pre-scraping bar, wherein the adjusting unit is used to drive the pre-scraping bar to be displaced, and when only one of the adjusting units drives the pre-scraping bar to be displaced, the adjusting unit is used to adjust the inclination angle of the pre-scraping bar relative to the plate roller; and when two of the adjusting units simultaneously drive the pre-scraping bar to be displaced, the adjusting unit is used to adjust the distance between the pre-scraping bar and the plate roller.

[0006] As a further improvement of the above technical solution, the pre-scraping strip assembly includes two end scrapers, the two end scrapers are installed on the pre-scraping strip, and the two end scrapers are respectively in contact with the two end surfaces of the plate roller.

[0007] As a further improvement of the above technical solution, the pre-scraping strip assembly includes a pre-scraping strip mounting rod, the pre-scraping strip is fixedly mounted on the pre-scraping strip mounting rod along the length direction of the pre-scraping strip mounting rod, the two end scrapers are also fixedly mounted on the pre-scraping strip mounting rod, and the two end scrapers are connected to both ends of the pre-scraping strip.

[0008] As a further improvement of the above technical solution, the adjustment unit includes a fixed seat and an adjustment seat, the adjustment seat is slidably connected to the fixed seat, and both ends of the pre-scraping strip mounting rod are respectively fixedly mounted to one of the adjustment seats.

[0009] As a further improvement of the above technical solution, the adjustment seat includes an adjustment block and a pressure block, and both the adjustment block and the pressure block are provided with a groove. When the pressure block is connected to the adjustment block, the two grooves form a slot, and the end of the pre-scraper strip mounting rod is clamped in the slot.

[0010] As a further improvement of the above technical solution, a sliding block is provided at the bottom of the adjustment block, a sliding groove is provided at the top of the fixing seat, and the sliding block is slidably connected in the sliding groove.

[0011] As a further improvement of the above technical solution, the adjustment unit also includes a driving member, which includes a screw and a ball nut. Two fixed blocks are arranged on the fixed seat. The two ends of the screw are respectively rotatably connected to the two fixed blocks. The ball nut is connected to the adjustment block, and the ball nut is installed on the screw.

[0012] As a further improvement of the above technical solution, one end of the screw rod is connected to an adjustment handle.

[0013] The utility model also provides the following technical solutions:

[0014] A coating machine comprises a frame, a plate roller and an open material box, and also comprises the scraper structure in the above technical solution, wherein the scraper structure is fixedly mounted on the frame.

[0015] As a further improvement of the above technical solution, a protective shield is provided on the frame, and the protective shield is provided at both ends of the plate roller.

[0016] The beneficial effect of the utility model is that the inclination angle and position of the pre-scraping strip and the end scraper can be adjusted by the adjustment unit, so as to control the thickness of the material layer on the plate roller, reduce the thickness of the material layer after contacting the main scraper, thereby reducing the material flipping phenomenon of the main scraper, reducing the splashing of slurry, and improving the coating appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a partial assembly schematic diagram of a coating machine of the utility model;

[0019] Figure 2 yes Figure 1 The main view of

[0020] Figure 3 yes Figure 2Sectional view of AA in the middle;

[0021] Figure 4 It is a schematic diagram of the assembly of the pre-scraping strip assembly in the utility model;

[0022] Figure 5 It is a cross-sectional view of the installation part of the pre-scraping strip in the utility model;

[0023] Figure 6 This is a cross-sectional view of the adjustment unit in the utility model. Figure 1 ;

[0024] Figure 7 It is the explosion vision of the adjustment unit in the utility model. Figure 1 ;

[0025] Figure 8 It is the explosion vision of the adjustment unit in the utility model. Figure 2 ;

[0026] Fig. 9 This is a cross-sectional view of the adjustment unit in the utility model. Figure 2 .

[0027] Figure numerals: 1. plate roller; 2. open material box; 3. protective cover; 4. main scraper; 5. pre-scraping strip assembly; 51. pre-scraping strip; 52. end scraper; 53. pre-scraping strip mounting rod; 54. adjustment unit; 541. adjustment seat; 5411. pressure block; 5412. adjustment block; 5413. slider; 5414. slot; 5415. through hole; 5416. mounting hole; 542. fixed seat; 5421. slide groove; 543. mounting plate; 544. adjustment handle; 545. screw rod; 546. ball nut; 547. first fixed block; 548. second fixed block. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. For example, the fixed connection / installation can be connected by screws, bolts and other accessories, or it can be directly connected by welding, bonding and other methods. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0029] Reference Figure 1-3The embodiment of the utility model provides a coating machine, which includes a frame, a plate roller 1, an open material box 2 and a scraper structure. The plate roller 1 is rotatably mounted on the frame, and a shield 3 is provided on the frame. The shield 3 is provided at both ends of the plate roller, and the shield 3 covers both ends of the plate roller 1, thereby protecting the rotating parts at both ends of the plate roller 1. The open material box 2 and the scraper structure are fixedly mounted on the frame. When the plate roller 1 applies the coating on the film for coating, the open material box 2 is used to provide the coating. The scraper structure includes a main scraper 4 and a pre-scraping strip assembly 5. The pre-scraping strip assembly 5 is located below the main scraper 4. The main scraper 4 is used to scrape the coating on the plate roller 1 flat to meet the coating thickness requirements. The pre-scraping strip assembly 5 is used to control the thickness of the material layer of the plate roller 1, reduce the material turning phenomenon of the main scraper 4 and the slurry splashing phenomenon, thereby improving the coating appearance.

[0030] Further, the embodiment of the present utility model specifically introduces the pre-scraping strip assembly 5, referring to Figure 4-9 The pre-scraping strip assembly 5 includes a pre-scraping strip 51, an end scraper 52, a pre-scraping strip mounting rod 53 and an adjustment unit 54. The pre-scraping strip 51 is located below the main scraper 4, and the distance between the pre-scraping strip 51 and the plate roller 1 is greater than the distance between the main scraper 4 and the plate roller 1. For details, refer to Figure 4 and Figure 5 The pre-scraping strip 51 is fixedly mounted on the pre-scraping strip mounting rod 53 along the length direction of the pre-scraping strip mounting rod 53. The end scrapers 52 include two end scrapers 52, which are fixedly mounted on the pre-scraping strip mounting rod 53, and the two end scrapers 52 are connected to both ends of the pre-scraping strip 51. In addition, the two end scrapers 52 are respectively in contact with the two end surfaces of the plate roller 1, so as to scrape off the paint on the two end surfaces of the plate roller 1 to avoid slurry splashing.

[0031] In this embodiment, refer to Figure 4 , an adjusting unit 54 is respectively provided at both ends of the pre-scraping strip 51, and the adjusting unit 54 is used to drive the pre-scraping strip 51 to be displaced. When only one of the adjusting units 54 drives the pre-scraping strip 51 to be displaced, the inclination angle of the pre-scraping strip 51 relative to the plate roller 1 can be adjusted, that is, the angle between the pre-scraping strip 51 and the plate roller 1 is adjusted. When the angle is 0, the pre-scraping strip 51 is parallel to the plate roller 1; when the two adjusting units 54 drive the pre-scraping strip 51 to be displaced at the same time, the distance between the pre-scraping strip 51 and the plate roller 1 can be adjusted, thereby controlling the thickness of the material layer on the plate roller 1 and reducing the material flipping phenomenon of the main scraper 4 and the slurry splashing phenomenon.

[0032] In a specific embodiment, refer to Figure 4-9The adjustment unit 54 includes a mounting plate 543, a fixing seat 542 and an adjustment seat 541. The fixing seat 542 is fixedly mounted on the mounting plate 543, and the mounting plate 543 is fixedly mounted on the frame, so as to realize the installation of the pre-scraping strip assembly 5. Both ends of the pre-scraping strip mounting rod 53 are fixedly mounted on one of the adjustment seats 541, respectively, and the adjustment seat 541 is slidably connected to the fixing seat 542, so that when the adjustment seat 541 is driven to slide on the fixing seat 542, the pre-scraping strip 51 can be driven to move.

[0033] Furthermore, the adjustment seat 541 includes an adjustment block 5412 and a pressure block 5411, and an arc-shaped groove is provided on the adjustment block 5412 and the pressure block 5411. When the pressure block 5411 is connected to the adjustment block 5412 by screws, the two grooves form a circular clamping groove 5414, and the end of the pre-scraping strip mounting rod 53 is clamped in the clamping groove 5414. When the pressure block 5411 is locked on the adjustment block 5412 by screws, the end of the pre-scraping strip mounting rod 53 is locked in the clamping groove 5414, thereby completing the fixed installation of the pre-scraping strip mounting rod 53.

[0034] Furthermore, a slider 5413 is provided at the bottom of the adjustment block 5412, and the slider 5413 is connected to the bottom of the adjustment block 5412 by screws. A slide groove 5421 is provided at the top of the fixed seat 542, and the slider 5413 is slidably connected in the slide groove 5421. When an external force is applied to the adjustment block 5412, the adjustment seat 541 can be driven to slide on the fixed seat 542.

[0035] The adjusting unit 54 also includes a driving member, which includes a screw rod 545 and a ball nut 546. A first fixed block 547 and a second fixed block 548 are provided at both ends of the fixed seat 542. Both ends of the screw rod 545 are rotatably connected to the first fixed block 547 and the second fixed block 548 respectively. The ball nut 546 is installed on the screw rod 545. In addition, the ball nut 546 is connected to the adjusting block 5412. Specifically, the adjusting block 5412 is provided with a mounting hole 5416 for mounting the ball nut 546, and a through hole 5415 for avoiding the screw rod 545. The through hole 5415 is connected to the mounting hole 5416, and the ball nut 546 is clamped in the mounting hole 5416. After the slider 5413 is installed at the bottom of the adjusting block 5412, the mounting hole 5416 is blocked so that the ball nut 546 stays in the mounting hole 5416. One end of the screw rod 545 is connected to an adjustment handle 544, which drives the screw rod 545 to rotate, thereby driving the ball nut 546 to move. Under the guidance of the slider 5413 and the slide groove 5421, the adjustment block 5412 is driven to slide on the fixed seat 542, so that it is convenient to adjust the angle and position of the pre-scraping strip 51.

[0036] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A scraper structure for scraping off excess slurry on a plate roller, characterized in that: It includes a main scraper and a pre-scraping strip assembly, wherein the pre-scraping strip assembly includes a pre-scraping strip and an adjusting unit, wherein the pre-scraping strip is located below the main scraper, and the distance between the pre-scraping strip and the plate roller is greater than the distance between the main scraper and the plate roller, and an adjusting unit is respectively provided at both ends of the pre-scraping strip, wherein the adjusting unit is used to drive the pre-scraping strip to be displaced, and when only one of the adjusting units drives the pre-scraping strip to be displaced, the adjusting unit is used to adjust the inclination angle of the pre-scraping strip relative to the plate roller; and when two of the adjusting units simultaneously drive the pre-scraping strip to be displaced, the adjusting units are used to adjust the distance between the pre-scraping strip and the plate roller.

2. A scraper structure according to claim 1, characterized in that: The pre-scraping strip assembly comprises two end scrapers, the two end scrapers are mounted on the pre-scraping strip, and the two end scrapers are respectively in contact with the two end surfaces of the plate roller.

3. A scraper structure according to claim 2, characterized in that: The pre-scraping strip assembly includes a pre-scraping strip mounting rod, the pre-scraping strip is fixedly mounted on the pre-scraping strip mounting rod along its length direction, the two end scrapers are also fixedly mounted on the pre-scraping strip mounting rod, and the two end scrapers are connected to both ends of the pre-scraping strip.

4. A scraper structure according to claim 2, characterized in that: The adjustment unit comprises a fixed seat and an adjustment seat, wherein the adjustment seat is slidably connected to the fixed seat, and both ends of the pre-scraping strip mounting rod are respectively fixedly mounted to one of the adjustment seats.

5. A scraper structure according to claim 4, characterized in that: The adjustment seat comprises an adjustment block and a pressure block, each of which is provided with a groove, and when the pressure block is connected to the adjustment block, the two grooves form a clamping groove, and the end of the pre-scraping strip mounting rod is clamped in the clamping groove.

6. A scraper structure according to claim 5, characterized in that: A sliding block is arranged at the bottom of the adjusting block, a sliding groove is arranged at the top of the fixing seat, and the sliding block is slidably connected in the sliding groove.

7. A scraper structure according to claim 6, characterized in that: The adjustment unit also includes a driving member, which includes a screw and a ball nut. Two fixed blocks are arranged on the fixed seat. The two ends of the screw are rotatably connected to the two fixed blocks respectively. The ball nut is connected to the adjustment block and is installed on the screw.

8. A scraper structure according to claim 7, characterized in that: One end of the screw rod is connected with an adjusting handle.

9. A coating machine, comprising a frame, a plate roller and an open material box, characterized in that: It also includes the scraper structure according to any one of claims 1 to 8, wherein the scraper structure is fixedly mounted on the frame.

10. A coating machine according to claim 9, characterized in that: The frame is provided with a protective cover, and the protective cover is arranged at both ends of the plate roller.

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