Double-scraper material throwing prevention mechanism

Abstract

The utility model discloses a double-scraper material throwing prevention mechanism which comprises a vertical plate, a feeding roller, a material receiving groove, a pressing roller, a pre-scraper assembly and a main scraper assembly, the main scraper assembly comprises a main scraper and a main scraper adjusting piece, and the pre-scraper assembly comprises a pre-scraper and a pre-scraper adjusting piece. The pre-scraping knife adjusting part comprises a fixing frame, a mounting frame, an angle adjusting block, a first angle adjusting screw rod, a second angle adjusting screw rod and a movable adjusting screw rod, the mounting frame is slidably connected to the fixing frame, the movable adjusting screw rod is rotatably connected to the fixing frame and is in threaded connection with the mounting frame, and the pre-scraping knife is fixedly connected to the angle adjusting block; the angle adjusting block is rotationally connected to the mounting frame, the first angle adjusting screw rod and the second angle adjusting screw rod are both in threaded connection to the mounting frame, and one end of the first angle adjusting screw rod and one end of the second angle adjusting screw rod abut against the angle adjusting block. The position and the angle of the pre-scraping scraper can be independently controlled, so that the thickness of a primary strip material layer of the feeding roller is controlled, the scraper of the feeding roller is prevented from throwing materials, and the problem that slurry splashes to pollute coating is solved.

Description

Technical Field

[0001] This utility model relates to the field of coating technology, specifically to a double-scraper anti-slinging mechanism. Background Technology

[0002] A primer coating machine is a device used to coat thin sheet-like substrates. The coating material generally includes adhesives, inks, mixed pastes, etc. with specific functions. By using different types of roller combinations, an ideal coating layer is formed on the surface of the substrate. It can also perform continuous high-speed coating on substrates with long widths. It is not only used in the lithium battery industry, but also widely used in optics, liquid crystal, electronic devices, food, pharmaceuticals, packaging and other fields.

[0003] The doctor blade primer coating machine uses doctor blades of different materials to evenly spread the coating on the feed roller while controlling the coating transfer thickness. As the coating speed increases, the rotational speed of the feed roller also increases accordingly. A conventional single-blade doctor blade is used, such as... Figure 1 As shown, the doctor blade is installed below the feed roller in a "dragging blade" shape, forming an acute angle with the rotation direction of the roller. During high-speed coating, the slurry at both ends of the feed roller and the bottom of the doctor blade splashes, forming a continuous slurry water curtain. Furthermore, the viscosity of the slurry used for coating is getting higher and higher. The high viscosity slurry impacts the doctor blade, causing slurry overturning. The splashed and overturned slurry is thrown onto the coating, forming particles and lumps on the coating surface, contaminating the coating appearance and reducing the coating quality. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a double scraper anti-splashing mechanism to solve the problem of splashing and agitation of slurry being thrown onto the coating in the existing single scraper primer coating machine.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The utility model provides a double scraper prevent material mechanism, including vertical board and the supply stick, the material receiving groove, the compression roller, the pre -scraping knife assembly and the main scraping knife assembly of installation on vertical board, the main scraping knife assembly includes main scraping knife and the main scraping knife adjusting part connected in the both ends of main scraping knife, the main scraping knife adjusting part is used for adjusting the position and angle of main scraping knife, the pre -scraping knife assembly includes pre -scraping knife and the pre -scraping knife adjusting part connected in the both ends of pre -scraping knife, and two pre -scraping knife adjusting parts all include fixed frame, mounting frame, angle adjusting block, first angle adjusting screw, second angle adjusting screw and mobile adjusting screw, the fixed frame is fixedly connected with vertical board, and the mounting frame is slidably connected on the fixed frame, the mobile adjusting screw is rotatably connected on the fixed frame and is threadedly connected with the mounting frame, the pre -scraping knife is fixedly connected on angle adjusting block, and the angle adjusting block is rotatably connected on the mounting frame, first angle adjusting screw and second angle adjusting screw are threadedly connected on the mounting frame, and one end of first angle adjusting screw and second angle adjusting screw is respectively abutted with angle adjusting block, and the abutted point of first angle adjusting screw, second angle adjusting screw and angle adjusting block is located on both sides of the rotation axis of angle adjusting block.

[0007] As a further improvement of the above technical solution, the fixed frame includes a fixed plate fixedly connected with the vertical plate, and a support plate connected perpendicularly to one side of the fixed plate. The mounting frame is slidably connected with the fixed plate. The mobile adjusting screw is connected to the support plate.

[0008] As a further improvement of the above technical solution, the fixed plate and the mounting frame are connected through a linear guide rail assembly. The slide rail of the linear guide rail assembly is arranged on the fixed plate. The slide block of the linear guide rail assembly is connected with the mounting frame.

[0009] As a further improvement of the above technical solution, a scale is arranged on the fixed plate. The scale is used to display the distance of the movement of the mounting frame relative to the fixed plate.

[0010] As a further improvement of the above technical solution, a first bearing seat is arranged on the support plate. The light rod segment of the mobile adjusting screw is rotatably connected with the support plate through the first bearing seat. The mobile adjusting screw is arranged parallel to the slide rail. A first threaded hole is arranged on the slide block. The threaded segment of the mobile adjusting screw is threadedly connected with the first threaded hole. A mobile adjusting knob is arranged on the end of the mobile adjusting screw away from the slide block.

[0011] As a further improvement of the above technical solution, the mounting frame comprises a mounting plate and an adjusting plate connected perpendicularly to one side of the mounting plate, the mounting plate is fixedly connected with the sliding block, a rotating shaft is rotatably connected to the mounting plate, the angle adjusting block is connected to the outer end of the rotating shaft, the two ends of the pre-scraping doctor blade are respectively connected to the inner ends of the rotating shafts of the two pre-scraping doctor blade adjusting members, and the first angle adjusting screw and the second angle adjusting screw are arranged on the adjusting plate.

[0012] As a further improvement of the above technical solution, the adjusting plate is provided with two lock nuts, and the first angle adjusting screw and the second angle adjusting screw are respectively threadedly connected to the two lock nuts.

[0013] As a further improvement of the above technical solution, one end of the first angle adjusting screw and the second angle adjusting screw away from the angle adjusting block is provided with an angle adjusting knob.

[0014] As a further improvement of the above technical solution, the main doctor blade adjusting member comprises a main doctor blade position adjusting structure and a main doctor blade angle adjusting structure, the main doctor blade position adjusting structure comprises a support frame, a sliding frame slidingly connected to the support frame, and a position adjusting screw rotatably connected to the support frame, a second threaded hole is arranged on the sliding frame, and a threaded segment of the position adjusting screw is threadedly connected with the second threaded hole.

[0015] The main doctor blade angle adjusting structure comprises a gas cylinder and a connecting rod, the two ends of the main doctor blade are respectively rotatably connected to the sliding frames of the two main doctor blade adjusting members, the connecting rod is fixedly connected to the main doctor blade, the gas cylinder is fixedly connected to the sliding frame, and an output end of the gas cylinder is hingedly connected with the connecting rod.

[0016] As a further improvement of the above technical solution, a fixing shaft is connected between the support frames of the two main doctor blade adjusting members, and the fixing shaft is mounted on the vertical plate.

[0017] The pre-scraping doctor blade can share 90% of the slurry scraping amount of the main doctor blade, the remaining 10% of the slurry to be scraped is finely controlled by the main doctor blade, the burden of the main doctor blade for precisely controlling the coating amount is reduced, the position and angle of the pre-scraping doctor blade can be individually controlled, the preliminary material layer thickness of the supply roller is controlled, the supply roller doctor blade is prevented from throwing material, the problem of slurry splashing and polluting coating is solved, and the coating appearance and coating effect are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model is further explained in connection with the drawings and examples.

[0019] Figure 1 It is a schematic view of the single doctor blade structure of the base coater in the prior art.

[0020] Figure 2 is the schematic diagram of the double scraper anti-swing material mechanism in the embodiment of the utility model;

[0021] Figure 3 is the schematic diagram of the main scraper assembly in the double scraper anti-swing material mechanism in the embodiment of the utility model;

[0022] Figure 4 is the side view of the main scraper assembly in the double scraper anti-swing material mechanism in the embodiment of the utility model;

[0023] Figure 5 is the schematic diagram of the pre-scraper assembly in the double scraper anti-swing material mechanism in the embodiment of the utility model;

[0024] Figure 6 is the side view of the pre-scraper assembly in the double scraper anti-swing material mechanism in the embodiment of the utility model.

[0025] The drawings: 1, main scraper assembly; 2, pre-scraper assembly; 3, vertical plate; 4, bottom plate; 5, feeding stick; 6, receiving groove; 7, compression roller; 8, fixed shaft; 9, main scraper position adjusting structure; 91, support frame; 92, sliding frame; 93, position adjusting screw; 94, second bearing seat; 95, position adjusting knob; 10, main scraper; 11, main scraper angle adjusting structure; 111, air cylinder; 112, air cylinder fixing seat; 113, connecting rod; 114, scraper shaft; 12, pre-scraper; 13, rotating shaft; 14, mounting frame; 141, mounting plate; 142, adjusting plate; 15, fixed frame; 151, fixed plate; 152, support plate; 16, second scale; 17, first bearing seat; 18, moving adjusting knob; 19, sliding block; 20, angle adjusting block; 21, first angle adjusting screw; 22, second angle adjusting screw; 23, lock nut; 24, angle adjusting knob; 25, moving adjusting screw; 26, sliding rail. DETAILED DESCRIPTION

[0026] The utility model will be described clearly and completely in the following combining with the embodiment and the drawing to the conception, specific structure and the technical effect produced, to fully understand the purpose, characteristics and effect of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, and not all the embodiment, based on the embodiment of the utility model, the other embodiment obtained by the skilled in the art without the premise of the creative labor, all belong to the scope of the utility model protection. In addition, all the connection / connection relations involved in the patent are not single component direct interface, but can be connected to the more optimal connection structure by adding or reducing the connection auxiliary part according to the specific implementation situation, such as screw, bolt and other auxiliary parts, and can be connected directly by welding, bonding and other ways. The various technical features in the utility model creation can be interactively combined without mutual contradiction and conflict.

[0027] With reference to Figures 2-6 The embodiment of the utility model provides a double scraper prevent material mechanism, including bottom plate 4, vertical board 3 of fixed on bottom plate 4 and install in vertical board 3 on the material supply stick 5, material receiving groove 6, compression roller 7, pre-scraping knife assembly 2 and main scraping knife assembly 1, through pre-scraping knife assembly 2 to the coating slurry on material supply stick 5 carries out first time scraping, then through main scraping knife assembly 1 to the coating slurry on material supply stick 5 carries out second time scraping, to obtain the thickness of material layer of material supply roller preliminary banding.

[0028] Further, with reference to Figure 3 The main scraping knife assembly 1 includes main scraping knife 10 and main scraping knife adjusting part connected to both ends of main scraping knife 10, so that the position and angle of main scraping knife 10 are adjusted by two main scraping knife adjusting parts. In a specific embodiment, with reference to Figure 4 The main scraping knife adjusting part includes main scraping knife position adjusting structure 9 and main scraping knife angle adjusting structure 11, which respectively adjust the position and angle of main scraping knife 10. The main scraping knife position adjusting structure 9 includes support frame 91, sliding frame 92 and position adjusting screw 93. The support frames 91 of the two main scraping knife adjusting parts are connected by fixed shaft 8, which is installed on vertical plate 3 to realize the installation and support of the whole main scraping knife assembly 1. The sliding frame 92 is slidingly connected to mounting bracket 14, and second bearing seat 94 is arranged on mounting bracket 14. The light rod section of position adjusting screw 93 is rotatably connected to mounting bracket 14 through bearing seat. Second threaded hole is arranged on sliding frame 92, and the threaded section of position adjusting screw 93 is threadedly connected with second threaded hole. Position adjusting knob 95 is arranged at the end of position adjusting screw 93 away from sliding frame 92. In this embodiment, position adjusting knob 95 is rotated to drive position adjusting screw 93 to rotate. Under the action of threads, sliding frame 92 moves on mounting bracket 14, and then the position of main scraping knife 10 installed on sliding frame 92 is adjusted to adjust the gap between main scraping knife 10 and material supply stick 5, thereby controlling the thickness of coating slurry.

[0029] Further, first scale is arranged on support frame 91, which is used to display the distance of sliding frame 92 moving relative to support frame 91, so as to accurately control the moving distance of main scraping knife 10.

[0030] With reference to Figure 4The main scraper angle adjusting structure 11 comprises a cylinder 111 and a connecting rod 113, both ends of the main scraper 10 are respectively rotationally connected to the sliding frames 92 of the two main scraper adjusting members through scraper shafts 114, the connecting rod 113 is fixedly connected to the main scraper 10, the cylinder 111 is installed on the sliding frame 92 through a cylinder fixing seat 112, and the output end of the cylinder 111 is hingedly connected with the connecting rod 113, so that when the cylinder 111 is extended or retracted, the main scraper 10 can be driven to rotate based on the axis of the scraper shaft 114, so as to adjust the angle of the main scraper 10 relative to the feeding rod 5, thereby improving the scraping effect.

[0031] In the embodiment, referring to Figure 2 、 Figure 5 and Figure 6 , the pre-scraper assembly 2 comprises a pre-scraper 12 and pre-scraper adjusting members connected to both ends of the pre-scraper 12, so that the position and angle of the pre-scraper 12 are adjusted by the two pre-scraper adjusting members. Specifically, the two pre-scraper adjusting members each comprise a fixed frame 15, a mounting frame 14, an angle adjusting block 20, a first angle adjusting screw 21, a second angle adjusting screw 22 and a moving adjusting screw 25. The fixed frame 15 comprises a fixed plate 151 and a support plate 152 which is perpendicularly connected to one side of the fixed plate 151, and the fixed plate 151 is fixedly connected with the vertical plate 3. The mounting frame 14 comprises a mounting plate 141 and an adjusting plate 142 which is perpendicularly connected to one side of the mounting plate 141. The mounting plate 141 is slidingly connected to the fixed plate 151 through a linear guide rail assembly, and the slide rail 26 of the linear guide rail assembly is arranged on the fixed plate 151. The slide block 19 of the linear guide rail assembly is fixedly connected with the mounting plate 141. The support plate 152 is provided with a first bearing seat 17, and the light rod section of the moving adjusting screw 25 is rotationally connected with the support plate 152 through the first bearing seat 17. The moving adjusting screw 25 is arranged in parallel with the slide rail 26. The slide block 19 is provided with a first threaded hole, and the threaded section of the moving adjusting screw 25 is threadedly connected with the first threaded hole. The end of the moving adjusting screw 25 away from the slide block 19 is provided with a moving adjusting knob 18. When the moving adjusting knob 18 is rotated, the moving adjusting screw 25 is driven to rotate, and under the action of the threads, the slide block 19 is driven to move along the slide rail 26, thereby driving the mounting plate 141 and the pre-scraper 12 on the mounting plate 141 to move, so as to adjust the gap of the pre-scraper 12 relative to the feeding rod 5.

[0032] Further, the fixed plate 151 is provided with a second scale 16, which is used to display the distance of the movement of the mounting plate 141 relative to the fixed plate 151, so as to accurately control the distance of the movement of the pre-scraper 12.

[0033] The rotating shaft 13 is rotatably connected to the mounting plate 141, the angle adjusting block 20 is connected to the outer end of the rotating shaft 13, the two ends of the pre-scraping doctor blade 12 are respectively connected to the inner end of the rotating shaft 13 of the two pre-scraping doctor blade adjusting members, the first angle adjusting screw 21 and the second angle adjusting screw 22 are both threadedly connected to the adjusting plate 142, one end of the first angle adjusting screw 21 and the second angle adjusting screw 22 respectively abuts against the angle adjusting block 20, and the abutting points of the first angle adjusting screw 21 and the second angle adjusting screw 22 and the angle adjusting block 20 are located on both sides of the rotating shaft 13 line of the angle adjusting block 20, the one end of the first angle adjusting screw 21 and the second angle adjusting screw 22 away from the angle adjusting block 20 is provided with the angle adjusting knob 24, the first angle adjusting screw 21 and the second angle adjusting screw 22 are driven to rotate by the positive and reverse rotation of the angle adjusting knob 24, the first angle adjusting screw 21 and the second angle adjusting screw 22 are moved towards / away from the angle adjusting block 20 under the thread action, thereby pushing the angle adjusting block 20 to rotate based on the axis of the rotating shaft 13, and further driving the pre-scraping doctor blade 12 to rotate, so as to realize the angle adjustment of the pre-scraping doctor blade 12 relative to the feeding rod 5.

[0034] Further, the adjusting plate 142 is provided with two lock nuts 23, the first angle adjusting screw 21 and the second angle adjusting screw 22 are respectively threadedly connected to the two lock nuts 23, so that the stability of the first angle adjusting screw 21 and the second angle adjusting screw 22 after moving is improved, and the pre-scraping doctor blade 12 is stably fixed at a certain angle.

[0035] The above is a specific description of the preferred embodiment of the utility model, but the utility model is not limited to the described embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A double blade anti-splashing mechanism, comprising a vertical plate, a feeding rod, a receiving groove, a pressing roller, a pre-blade assembly and a main-blade assembly mounted on the vertical plate, the main-blade assembly comprising a main-blade and main-blade adjusting members connected to both ends of the main-blade, the main-blade adjusting members being used to adjust the position and angle of the main-blade, the pre-blade assembly comprising a pre-blade and pre-blade adjusting members connected to both ends of the pre-blade, characterized in that: Both of the pre-scraping knife adjusting members comprise a fixed frame, a mounting frame, an angle adjusting block, a first angle adjusting screw, a second angle adjusting screw and a moving adjusting screw, the fixed frame is fixedly connected with the vertical plate, the mounting frame is slidingly connected with the fixed frame, the moving adjusting screw is rotatably connected with the fixed frame and is threadedly connected with the mounting frame, the pre-scraping knife is fixedly connected with the angle adjusting block, the angle adjusting block is rotatably connected with the mounting frame, the first angle adjusting screw and the second angle adjusting screw are both threadedly connected with the mounting frame, one end of the first angle adjusting screw and the second angle adjusting screw is respectively abutted with the angle adjusting block, and the abutted points of the first angle adjusting screw and the second angle adjusting screw with the angle adjusting block are located on both sides of the rotation axis of the angle adjusting block.

2. A dual doctor anti-flinging mechanism according to claim 1, wherein: The fixed frame comprises a fixed plate fixedly connected with the vertical plate and a support plate perpendicularly connected with one side of the fixed plate, the mounting frame is slidingly connected with the fixed plate, and the moving adjusting screw is connected with the support plate.

3. A dual blade anti-flip mechanism according to claim 2, wherein: The fixed plate and the mounting frame are connected through a linear guide rail assembly, the slide rail of the linear guide rail assembly is arranged on the fixed plate, and the slide block of the linear guide rail assembly is connected with the mounting frame.

4. A dual blade anti-flinging mechanism according to claim 3, wherein: A scale is arranged on the fixed plate, and the scale is used to display the moving distance of the mounting frame relative to the fixed plate.

5. A dual blade anti-flinging mechanism according to claim 3, wherein: A first bearing seat is arranged on the support plate, the light rod section of the moving adjusting screw is rotatably connected with the support plate through the first bearing seat, the moving adjusting screw is arranged in parallel with the slide rail, a first threaded hole is arranged on the slide block, the threaded section of the moving adjusting screw is threadedly connected with the first threaded hole, and a moving adjusting knob is arranged at the end of the moving adjusting screw away from the slide block.

6. A dual blade anti-flinging mechanism according to claim 3, wherein: The mounting frame comprises a mounting plate and an adjusting plate perpendicularly connected with one side of the mounting plate, the mounting plate is fixedly connected with the slide block, a rotation shaft is rotatably connected with the mounting plate, the angle adjusting block is connected with the outer end of the rotation shaft, the two ends of the pre-scraping knife are respectively connected with the inner ends of the rotation shafts of the two pre-scraping knife adjusting members, and the first angle adjusting screw and the second angle adjusting screw are both arranged on the adjusting plate.

7. A dual blade anti-flinging mechanism according to claim 6, wherein: The adjusting plate is provided with two lock nuts, and the first angle adjusting screw and the second angle adjusting screw are respectively threadedly connected with the two lock nuts.

8. A dual blade anti-flip mechanism according to claim 7, wherein: The first angle adjusting screw and the second angle adjusting screw are both provided with an angle adjusting knob at the end away from the angle adjusting block.

9. A dual blade anti-flip mechanism according to claim 1, wherein: The main scraping knife adjusting member comprises a main scraping knife position adjusting structure and a main scraping knife angle adjusting structure, the main scraping knife position adjusting structure comprises a support frame, a sliding frame slidingly connected with the support frame and a position adjusting screw rotatably connected with the support frame, a second threaded hole is arranged on the sliding frame, and a threaded section of the position adjusting screw is threadedly connected with the second threaded hole; The main scraping knife angle adjusting structure comprises a gas cylinder and a connecting rod, the two ends of the main scraping knife are respectively rotatably connected with the sliding frames of the two main scraping knife adjusting members, the connecting rod is fixedly connected with the main scraping knife, the gas cylinder is fixedly connected with the sliding frame, and the output end of the gas cylinder is hingedly connected with the connecting rod.

10. A dual doctor fling prevention mechanism according to claim 9, wherein: The support frames of the two main scraping knife adjusting members are connected with a fixed shaft, and the fixed shaft is mounted on the vertical plate.

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