Doctor blade coating device of an automated coater

Abstract

The utility model relates to the technical field of doctor blade coating technology discloses the doctor blade coating device of automatic coating machine, include: driving motor, speed reducer, doctor blade seat, back roll, linear guide, sliding block, bearing seat, hand wheel, doctor blade assembly and support, the output of driving motor is connected with the input of speed reducer transmission, driving motor and speed reducer fixed assembly in the one end top of support, the both ends of back roll are supported through bearing seat assembly. The beneficial effect of adopting the above technical scheme is: through the integration of driving motor, speed reducer in support, realizes the centralized installation of power unit, and back roll is assembled in support through bearing seat, and the sliding structure of cooperation linear guide and sliding block can drive doctor blade assembly to be close to / away from back roll stably, and the structure that the doctor blade assembly adopts L shape section doctor blade backboard and doctor blade panel pasting fixed, clamping doctor blade piece, improves the installation stability of doctor blade piece.

Description

Technical Field

[0001] This utility model relates to the field of blade coating technology, specifically to a blade coating device for an automated coating machine. Background Technology

[0002] In the field of coating processing, the doctor blade coating device of an automated coating machine is the core component for achieving uniform coating. Its main function is to uniformly coat the coating material onto the substrate surface through the cooperation of the doctor blade and the back roller. It is widely used in the surface treatment process of substrates such as films, paper, and metal foils.

[0003] In existing automated coating machines, the assembly layout of various functional components has obvious defects: on the one hand, the power units such as the drive motor and reducer are mostly installed in a decentralized manner without a unified integrated installation carrier, resulting in a loose overall structure of the equipment, occupying a large space, and having poor stability in the power transmission process, which is easily affected by vibration and thus affects the coating accuracy; on the other hand, the support structure of the back roller and the moving guide structure of the doctor blade assembly are often set independently, and there is a lack of coordinated positioning reference between the two, which makes it easy for the doctor blade assembly to deviate when moving closer to or away from the back roller, resulting in insufficient bonding accuracy between the doctor blade and the back roller, thus affecting the coating uniformity.

[0004] Meanwhile, the existing doctor blade assembly has an unreasonable fixing structure design. The doctor blade is usually directly clamped to the panel by a simple flat back plate. This fixing method is not stable enough for the doctor blade. During long-term coating operations, the doctor blade is prone to loosening or shifting. Moreover, the flat back plate lacks elastic adjustment space and cannot fine-tune the installation posture of the doctor blade according to the actual coating requirements, which further limits the improvement of coating accuracy. Utility Model Content

[0005] The purpose of this invention is to provide a blade coating device for an automated coating machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a doctor blade coating device for an automated coating machine, comprising: The system includes a drive motor, a reducer, a scraper holder, a back roller, a linear guide rail, a slider, a bearing housing, a hand crank, a scraper assembly, and a bracket; the output end of the drive motor is connected to the input end of the reducer, and the drive motor and the reducer are fixedly mounted on the top of one end of the bracket. The two ends of the back roller are supported and assembled by bearing seats, the bearing seats are mounted on the bracket, the linear guide rail is fixedly set on one side of the bracket, and the slider is slidably connected to the linear guide rail; The scraper assembly is fixedly mounted on the slider. The scraper assembly includes a scraper shaft, a scraper panel, a scraper blade, and a scraper back plate. One end of the scraper shaft is connected to the scraper back plate. The scraper blade is embedded in one side between the scraper panel and the scraper back plate. The scraper back plate has an L-shaped cross-section and is fixedly attached to one side of the scraper panel. The scraper seat is fixed on the bracket to support the scraper assembly.

[0007] The beneficial effects of adopting the above technical solution are as follows: by integrating the active motor and reducer into the bracket, the power unit is centrally installed; the back roller is mounted on the bracket through the bearing seat, and with the sliding structure of the linear guide rail and the slider, the scraper assembly can be driven to stably approach / move away from the back roller; and the scraper assembly adopts a structure in which the L-shaped cross section scraper back plate is attached and fixed to the scraper panel and the scraper blade is clamped, which improves the installation stability of the scraper blade.

[0008] As a further improvement of this utility model, the scraper panel and the scraper back plate are respectively provided with front holes and back holes distributed along their length direction, and the front holes and back holes correspond one-to-one and are arranged at equal intervals along a single row.

[0009] The beneficial effects of adopting the above technical solution are: the front holes of the scraper panel correspond one-to-one with the back holes of the scraper back plate and are arranged at equal intervals, which makes it easy to lock and fix the scraper panel and the scraper back plate accurately and evenly with fasteners, and also provides a reference for the assembly and positioning of the two.

[0010] As a further improvement of this utility model, a notch is provided on the scraper back plate, the notch is provided through the thickness direction of the scraper back plate, and the extension direction of the notch is perpendicular to the length direction of the scraper back plate.

[0011] The beneficial effects of adopting the above technical solution are: the notch on the scraper back plate runs through the thickness direction and is perpendicular to the length direction, and the elastic deformation space of the notch can be used to help adjust the radial position of the scraper blade and improve the fit between the scraper blade and the back roller.

[0012] As a further improvement of this utility model, the scraper assembly also includes a scraper holder, which is fixedly mounted on the slider, and the scraper shaft passes through the mounting hole of the scraper holder and rotates in cooperation with the scraper holder.

[0013] The beneficial effects of adopting the above technical solution are: the structure in which the scraper holder is fixed to the slider and rotates in coordination with the scraper shaft allows the scraper shaft to drive the entire scraper assembly to rotate relative to the scraper holder, thereby achieving fine adjustment of the scraper blade orientation angle.

[0014] As a further improvement of this utility model, a coating machine oil pipe is mounted on the bracket, one end of the coating machine oil pipe is sealed and connected to the oil pipe joint, and the oil outlet end of the coating machine oil pipe faces the contact area between the scraper blade and the back roller.

[0015] The beneficial effects of adopting the above technical solution are: the oil pipe of the coating machine mounted on the bracket is sealed and connected through the oil pipe joint, and the oil outlet is facing the contact area between the doctor blade and the back roller, which can accurately supply oil to the coating operation area and ensure the lubrication or the accuracy of material supply during the coating process.

[0016] As a further improvement of this utility model, the hand crank is connected to the slider and drives the slider to move back and forth along the linear guide rail. The bottom of the hand crank is provided with a roller, and the outer side of the roller is interference-fitted with the linear guide rail.

[0017] The beneficial effects of adopting the above technical solution are: the hand crank drives the slider to move back and forth along the linear guide rail, and the roller at the bottom of the hand crank is interference-fitted with the linear guide rail, which not only realizes the manual adjustment of the position of the scraper assembly, but also improves the stability and smoothness of the hand crank adjustment process.

[0018] As a further improvement of this utility model, the length direction of the scraper blade is parallel to the axis of the back roller, and the scraper blade and the back roller are attached to each other on the side that are close to each other.

[0019] The beneficial effects of adopting the above technical solution are: the structure in which the length direction of the doctor blade is parallel to the axis of the back roller and the two are in close contact ensures that the doctor blade can make uniform contact along the axial direction of the back roller, thereby improving the consistency of the coating thickness.

[0020] As a further improvement of this utility model, a connecting groove is provided on the side of the scraper shaft that is connected to the scraper holder, and an elastic retaining ring is engaged in the connecting groove, with one side of the elastic retaining ring abutting against the side wall of the scraper holder.

[0021] The beneficial effects of adopting the above technical solution are: the elastic retaining ring in the scraper shaft connecting groove abuts against the side wall of the scraper holder, which can limit the axial movement of the scraper shaft and improve the axial positioning accuracy after the scraper shaft and scraper holder are assembled. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the doctor blade coating device of the automated coating machine of this utility model. Figure 2 This utility model relates to a blade coating device for an automated coating machine. Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This utility model relates to a blade coating device for an automated coating machine. Figure 1 Enlarged structural diagram at point B; Figure 4 This is a bottom view of the scraper coating device of the automated coating machine of this utility model. Figure 5 This is a schematic diagram of the scraper back plate structure of the scraper coating device of the automated coating machine of this utility model; Figure 6 This utility model relates to a blade coating device for an automated coating machine. Figure 5 Enlarged structural diagram at point C; Figure 7 This is a front view of the blade coating device of the automated coating machine of this utility model; Figure 8 This utility model relates to a blade coating device for an automated coating machine. Figure 7 Schematic diagram of the cross-sectional structure of the middle EE; Figure 9 This utility model relates to a blade coating device for an automated coating machine. Figure 8 Enlarged structural diagram at point D.

[0024] In the diagram: 1. Active motor; 2. Reducer; 3. Scraper holder; 4. Back roller; 5. Linear guide rail; 6. Slider; 7. Bearing seat; 8. Hand crank; 9. Scraper assembly; 91. Scraper shaft; 92. Scraper panel; 93. Scraper blade; 94. Scraper back plate; 95. Back hole; 96. Front hole; 97. Notch; 98. Connecting groove; 10. Bracket; 11. Coating machine oil pipe; 12. Oil pipe connector; 13. Scraper holder. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-9 This utility model provides a blade coating device for an automated coating machine, comprising: The components include a drive motor 1, a reducer 2, a scraper holder 3, a back roller 4, a linear guide rail 5, a slider 6, a bearing seat 7, a hand crank 8, a scraper assembly 9, and a bracket 10. The output end of the drive motor 1 is connected to the input end of the reducer 2, and the drive motor 1 and the reducer 2 are fixedly mounted on the top of one end of the bracket 10. The two ends of the back roller 4 are supported and assembled by bearing seats 7. The bearing seats 7 are installed on the bracket 10. The linear guide rail 5 is fixedly set on one side of the bracket 10. The slider 6 is slidably connected to the linear guide rail 5. The scraper assembly 9 is fixedly mounted on the slider 6. The scraper assembly 9 includes a scraper shaft 91, a scraper panel 92, a scraper blade 93, and a scraper back plate 94. One end of the scraper shaft 91 is connected to the scraper back plate 94. The scraper blade 93 is embedded in one side between the scraper panel 92 and the scraper back plate 94. The scraper back plate 94 has an L-shaped cross section and is fixedly attached to one side of the scraper panel 92.

[0027] The beneficial effects of adopting the above technical solution are as follows: by integrating the active motor 1 and the reducer 2 into the bracket 10, the power unit is centrally installed; the back roller 4 is assembled into the bracket 10 through the bearing seat 7, and with the sliding structure of the linear guide rail 5 and the slider 6, it can drive the scraper assembly 9 to stably approach / move away from the back roller 4; and the scraper assembly 9 adopts the structure of the L-shaped cross section scraper back plate 94 and scraper panel 92 being attached and fixed, and the scraper blade 93 being clamped, which improves the installation stability of the scraper blade 93.

[0028] In one embodiment of this utility model, the scraper panel 92 and the scraper back plate 94 are respectively provided with front holes 96 and back holes 95 distributed along their length direction, and the front holes 96 and back holes 95 correspond one-to-one and are arranged at equal intervals in a single row. The front holes 96 are ordinary through holes, and the back holes 95 are countersunk holes.

[0029] The beneficial effects of adopting the above technical solution are: the front hole 96 of the scraper panel 92 corresponds one-to-one with the back hole 95 of the scraper back plate 94 and is arranged at equal intervals, which makes it easy to lock and fix the scraper panel 92 and the scraper back plate 94 precisely and evenly with fasteners, and also provides a reference for the assembly and positioning of the two.

[0030] In one embodiment of this utility model, a notch 97 is provided on the scraper back plate 94. The notch 97 is provided through the thickness direction of the scraper back plate 94, and the extension direction of the notch 97 is perpendicular to the length direction of the scraper back plate 94.

[0031] The beneficial effects of adopting the above technical solution are: the notch 97 on the scraper back plate 94 extends through the thickness direction and is perpendicular to the length direction. The elastic deformation space of the notch 97 can be used to help adjust the radial position of the scraper blade 93 and improve the fit between the scraper blade 93 and the back roller 4.

[0032] In one embodiment of the present invention, the scraper assembly 9 further includes a scraper holder 13, which is fixedly mounted on the slider 6, and the scraper shaft 91 passes through the mounting hole of the scraper holder 13 and rotates in cooperation with the scraper holder 13.

[0033] The beneficial effect of adopting the above technical solution is that the structure of the scraper holder 13 being fixed to the slider 6 and rotating in cooperation with the scraper shaft 91 allows the scraper shaft 91 to drive the entire scraper assembly 9 to rotate relative to the scraper holder 13, thereby realizing the fine adjustment of the orientation angle of the scraper blade 93.

[0034] In one embodiment of this utility model, a coating machine oil pipe 11 is mounted on the bracket 10. One end of the coating machine oil pipe 11 is sealed and connected to the oil pipe joint 12, and the oil outlet end of the coating machine oil pipe 11 faces the contact area between the scraper blade 93 and the back roller 4.

[0035] The beneficial effects of adopting the above technical solution are: the oil pipe 11 of the coating machine mounted on the bracket 10 is sealed and connected by the oil pipe joint 12, and the oil outlet is facing the contact area between the scraper blade 93 and the back roller 4, which can accurately supply oil to the coating operation area and ensure the lubrication or the accuracy of material supply during the coating process.

[0036] In one embodiment of this utility model, the hand crank 8 is connected to the slider 6 and drives the slider 6 to reciprocate along the linear guide rail 5. The bottom of the hand crank 8 is provided with a roller, and the outer side of the roller is interference-fitted with the linear guide rail 5.

[0037] The beneficial effects of adopting the above technical solution are: the hand crank 8 drives the slider 6 to move back and forth along the linear guide rail 5, and with the roller at the bottom of the hand crank 8 and the linear guide rail 5 in an interference fit, it not only realizes the manual adjustment of the position of the scraper assembly 9, but also improves the stability and smoothness of the hand crank adjustment process.

[0038] In one embodiment of this utility model, the length direction of the scraper blade 93 is parallel to the axis of the back roller 4, and the scraper blade 93 and the back roller 4 are attached to each other on the side that are close to each other.

[0039] The beneficial effects of adopting the above technical solution are: the structure in which the length direction of the doctor blade 93 is parallel to the axis of the back roller 4 and the two are in contact ensures that the doctor blade 93 can make uniform contact along the axis of the back roller 4, thereby improving the consistency of the coating thickness.

[0040] In one embodiment of this utility model, a connecting groove 98 is provided on the side of the scraper shaft 91 that is connected to the scraper holder 13. An elastic retaining ring is engaged in the connecting groove 98, and one side of the elastic retaining ring abuts against the side wall of the scraper holder 13.

[0041] The beneficial effects of adopting the above technical solution are: the elastic retaining ring in the connecting groove 98 of the scraper shaft 91 abuts against the side wall of the scraper holder 13, which can limit the axial movement of the scraper shaft 91 and improve the axial positioning accuracy after the scraper shaft 91 and the scraper holder 13 are assembled.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blade coating device for an automated coating machine, characterized in that, include: The system includes a drive motor, a reducer, a scraper holder, a back roller, a linear guide rail, a slider, a bearing housing, a hand crank, a scraper assembly, and a bracket; the output end of the drive motor is connected to the input end of the reducer, and the drive motor and the reducer are fixedly mounted on the top of one end of the bracket. The two ends of the back roller are supported and assembled by bearing seats, the bearing seats are mounted on the bracket, the linear guide rail is fixedly set on one side of the bracket, and the slider is slidably connected to the linear guide rail; The scraper assembly is fixedly mounted on the slider. The scraper assembly includes a scraper shaft, a scraper panel, a scraper blade, and a scraper back plate. One end of the scraper shaft is connected to the scraper back plate. The scraper blade is embedded in one side between the scraper panel and the scraper back plate. The scraper back plate has an L-shaped cross-section and is fixedly attached to one side of the scraper panel. The scraper seat is fixed on the bracket to support the scraper assembly.

2. The blade coating device of the automated coating machine according to claim 1, characterized in that, The scraper panel and scraper back plate are respectively provided with front holes and back holes distributed along their length direction, and the front holes and back holes correspond one-to-one and are arranged at equal intervals in a single row.

3. The blade coating device of the automated coating machine according to claim 1, characterized in that, The scraper back plate has a notch that extends through the thickness of the scraper back plate and extends perpendicularly to the length of the scraper back plate.

4. The blade coating device of the automated coating machine according to claim 1, characterized in that, The scraper assembly also includes a scraper holder, which is fixedly mounted on the slider, and the scraper shaft passes through the mounting hole of the scraper holder and rotates in cooperation with the scraper holder.

5. The blade coating device of the automated coating machine according to claim 1, characterized in that, The support is equipped with a coating machine oil pipe, one end of which is sealed to an oil pipe joint, and the oil outlet of the coating machine oil pipe faces the contact area between the scraper blade and the back roller.

6. The blade coating device of the automated coating machine according to claim 1, characterized in that, The hand crank is connected to the slider and drives the slider to move back and forth along the linear guide rail. The bottom of the hand crank is provided with a roller, and the outer side of the roller is interference-fitted with the linear guide rail.

7. The blade coating device of the automated coating machine according to claim 1, characterized in that, The length direction of the scraper blade is parallel to the axis of the back roller, and the scraper blade and the back roller are attached to each other on the side that is close to each other.

8. The blade coating device of the automated coating machine according to claim 4, characterized in that, A connecting groove is provided on the side of the scraper shaft that connects to the scraper holder. An elastic retaining ring is engaged in the connecting groove, and one side of the elastic retaining ring abuts against the side wall of the scraper holder.

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