Coating equipment

Abstract

The utility model relates to the field of production equipment, in particular to coating equipment. Comprising a coating mechanism and a scraper control mechanism, the coating mechanism comprises a supporting frame and a printing roller. The scraper control mechanism comprises an illuminating lamp, a first recognition assembly and a first driving assembly. The illuminating lamp and the printing roller are arranged at an interval, so that a strip-shaped light band is formed on the printing roller stained with slurry through projection; the first recognition assembly and the printing roller are arranged at an interval so as to recognize the width of the strip-shaped light band. The first recognition assembly is in communication connection with the first driving assembly, and the first driving assembly drives the scraper to be close to or away from the printing roller according to the recognized width of the strip-shaped light band. According to the coating equipment provided by the invention, the scraper control mechanism is arranged, so that the thickness of the slurry adhered and carried on the printing roller can be automatically identified, the action state of the scraper is correspondingly controlled, the thickness of the slurry adhered to the printing roller meets the initial coating requirement, the working efficiency is relatively high, and the problems of mistakes and omissions are not easy to generate.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of production equipment, and particularly relates to a coating equipment. BACKGROUND

[0002] In the production process of lithium batteries, the battery diaphragm needs to be coated. In the prior art, a coating equipment is used to perform micro gravure coating on the diaphragm, but there are many process problems, and the equipment is mostly adjusted by manual operation to solve the problems, so the work efficiency is low, and the coating quality is affected by the errors and omissions. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to provide a coating equipment to solve the problems of low work efficiency and easy errors and omissions in the prior art.

[0004] The present application provides a coating equipment, which comprises a coating mechanism and a scraper control mechanism.

[0005] The coating mechanism comprises a support frame and a printing roller, and the printing roller is rotatably installed on the support frame.

[0006] The scraper control mechanism is installed on the support frame, and the scraper control mechanism comprises an illuminating lamp, a first identification component and a first driving component. The illuminating lamp is arranged at intervals with the printing roller to project a strip-shaped light band on the printing roller covered with slurry. The first identification component is arranged at intervals with the printing roller to identify the width of the strip-shaped light band. The first identification component is in communication connection with the first driving component, and according to the identified width of the strip-shaped light band, the first driving component drives the scraper to approach or move away from the printing roller.

[0007] In the above technical solution, further, the first driving component comprises a first driving part and a second driving part; the first driving part is connected with the second driving part to drive the second driving part to approach or move away from the printing roller.

[0008] The second driving part is connected with the scraper to drive the scraper to approach or move away from the printing roller.

[0009] In the above technical solution, further, the first identification component comprises a first visual camera and a second driving component.

[0010] The first visual camera is used to identify the width of the strip-shaped light band.

[0011] The second driving component is connected with the first visual camera to drive the first visual camera to reciprocate along the length direction of the printing roller.

[0012] In the technical scheme, further, the scraper control mechanism further comprises an alarm device.

[0013] The first identification component is further configured to detect a scratch formed by the scraper on the printing roller, and when the scratch is formed by the scraper on the printing roller, the first identification component is in communication connection with the alarm device to make the alarm device send an alarm information.

[0014] In the technical scheme, further, a coating control mechanism is further included.

[0015] The coating mechanism further comprises a discharging traction adsorption roller and an arc-shaped roller, and the discharging traction adsorption roller and the arc-shaped roller are rotatably installed on the support frame.

[0016] The coating control mechanism comprises a second identification component and a third driving component, the arc-shaped roller is connected with a driving end of the third driving component, the base film passes through the arc-shaped roller and the discharging traction adsorption roller in sequence, the second identification component is arranged at intervals with the discharging traction adsorption roller to identify the coating condition of the base film passing through the discharging traction adsorption roller, and according to the identified coating condition, the second identification component is in communication connection with the third driving component to make the third driving component drive the arc-shaped roller to rotate to tension or relax the base film.

[0017] In the technical scheme, further, a fourth driving component and a pushing roller are further included, the pushing roller is slidably arranged on the support frame, the pushing roller is connected with a driving end of the fourth driving component, the pushing roller is located downstream of the arc-shaped roller, and the base film passes through the arc-shaped roller, the pushing roller and the discharging traction adsorption roller in sequence.

[0018] According to the identified coating condition, the second identification component is in communication connection with the fourth driving component to make the fourth driving component drive the pushing roller to push the base film to be close to or away from the printing roller.

[0019] In the technical scheme, further, the fourth driving component comprises a third driving part and a fourth driving part, the third driving part is connected with the fourth driving part to drive the fourth driving part to be close to or away from the printing roller.

[0020] The fourth driving part is connected with the pushing roller to drive the pushing roller to be close to or away from the printing roller.

[0021] In the technical scheme, further, a preheating oven is further included.

[0022] The preheating oven is arranged at intervals with the coating mechanism, and an outlet of the preheating oven is opposite to a feeding side of the coating mechanism.

[0023] According to the identified coating condition, the second identification component is in communication connection with the preheating oven to adjust the preheating temperature.

[0024] In the above technical solution, further comprising a centering adjustment mechanism.

[0025] The centering adjustment mechanism is located between the preheating oven and the coating mechanism.

[0026] The centering adjustment mechanism comprises a deviation corrector, an adjustment roller and a fifth driving assembly; the deviation corrector is arranged adjacent to the adjustment roller, and the deviation corrector is used to identify the deviation degree of the base film in the width direction; at least one end of the adjustment roller is provided with the fifth driving assembly, and according to the identified deviation degree, the fifth driving assembly is used to drive the end of the adjustment roller in the vertical direction.

[0027] In the above technical solution, further comprising a feeding mechanism; the feeding mechanism is installed on the support frame, and the feeding mechanism is located below the printing roller.

[0028] The feeding mechanism comprises a feeding device and a cartridge.

[0029] The cartridge comprises an inner groove and an outer groove surrounding the circumference of the inner groove; the feeding device is in communication with the inner groove to supply the slurry to the inner groove; the bottom of the printing roller is placed in the inner groove to dip the slurry.

[0030] The groove height of the inner groove is lower than the groove height of the outer groove, so that the slurry in the inner groove overflows to the outer groove; the outer groove is in communication with the feeding device, so that the overflowed slurry flows back to the feeding device.

[0031] Compared with the prior art, the beneficial effects of the present application are:

[0032] The coating equipment provided by the present application can automatically identify the thickness of the slurry adhered and carried on the printing roller by setting the scraper control mechanism, so as to correspondingly control the action state of the scraper, so that the thickness of the slurry adhered on the printing roller reaches the initial requirement of coating, the working efficiency is higher, and the error and omission problems are less likely to occur. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0034] Figure 1A first structural schematic diagram of a coating mechanism provided by the present application;

[0035] Figure 2 A second structural schematic diagram of a coating mechanism provided by the present application;

[0036] Figure 3 A third structural schematic diagram of a coating mechanism provided by the present application;

[0037] Figure 4 A structural schematic diagram of a coating device provided by the present application;

[0038] Figure 5 A structural schematic diagram of a centering adjustment mechanism provided by the present application;

[0039] Figure 6 A structural schematic diagram of a material box provided by the present application.

[0040] In the figure: 101-coating mechanism; 102-support frame; 103-printing roller; 104-illumination lamp; 105-first identification component; 106-first driving component; 107-blade; 108-first driving part; 109-second driving part; 110-first visual camera; 111-second driving component; 112-discharge traction suction roller; 113-arc-shaped roller; 114-second identification component; 115-third driving component; 116-fourth driving component; 117-advancing roller; 118-third driving part; 119-fourth driving part; 120-preheating oven; 121-centering adjustment mechanism; 122-corrector; 123-adjusting roller; 124-fifth driving component; 125-base film; 126-inlet traction suction roller; 127-pass roller; 128-feeding device; 129-material box; 130-inner groove; 131-outer groove. DETAILED DESCRIPTION

[0041] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] Embodiment one

[0045] Referring to Figures 1 to 6 As shown, the coating device provided by the present application comprises a coating mechanism 101 and a scraper control mechanism.

[0046] The coating mechanism 101 comprises a support frame 102 and a printing roller 103, the printing roller 103 is specifically a micro-concave roller or an anilox roller, and is rotatably installed on the support frame 102. The scraper control mechanism is installed on the support frame 102. In the coating process, the printing roller 103 rotates to stick and carry a certain amount of slurry from the feeding mechanism, and then the excess slurry on the printing roller 103 is scraped off by the scraper 107, and then the base film 125 is coated. The roller surface of the printing roller 103 is opposite to the direction of the base film 125, and the printing roller 103 can coat the slurry to the base film 125 by contact transfer.

[0047] The scraper control mechanism comprises an illuminating lamp 104, a first identification assembly 105 and a first driving assembly 106; the illuminating lamp 104 is arranged in a spaced manner with the printing roller 103 to project a strip-shaped light band on the printing roller 103 with slurry; the first identification assembly 105 is arranged in a spaced manner with the printing roller 103 to identify the width of the strip-shaped light band; the first identification assembly 105 is in communication connection with the first driving assembly 106, according to the width of the identified strip-shaped light band, so that the first driving assembly 106 drives the scraper 107 to approach or move away from the printing roller 103.

[0048] Specifically, in order to make the thickness of the paste adhered to the printing roller 103 reach the initial requirement of coating, the application sets a scraper control mechanism to control the action state of the scraper 107. In the initial state, the printing roller 103 adheres to carry more paste from the feeding mechanism. Since the thickness of the paste is thicker, and the reflection effect of the paste on light is poorer, when the illuminating lamp 104 is irradiated on the printing roller 103 adhered with the paste, a wide strip-shaped light band appears at the highest part of the printing roller 103, and the strip-shaped light band is relatively divergent. At this time, the first identification assembly 105 identifies that the width of the strip-shaped light band is too wide and exceeds the preset width, and the first driving assembly 106 drives the scraper 107 to approach the printing roller 103, adjusts the pressing force of the scraper 107 and the printing roller 103, so as to gradually scrape off the paste on the printing roller 103.

[0049] With the gradual thinning of the thickness of the paste on the printing roller 103, the strip-shaped light band on the printing roller 103 gradually converges and narrows to approximately a uniform line, indicating that the thickness of the paste adhered to the printing roller 103 reaches the initial requirement of coating. At this time, the first identification assembly 105 identifies that the width of the strip-shaped light band reaches the preset width, and the first driving assembly 106 drives the scraper 107 to be stationary or away from the printing roller 103, so that the paste adhered to the printing roller 103 reaches the initial requirement of coating.

[0050] In the optional scheme of the embodiment, the first driving assembly 106 includes a first driving part 108 and a second driving part 109; the first driving part 108 is connected with the second driving part 109 to drive the second driving part 109 to approach or move away from the printing roller 103; and the second driving part 109 is connected with the scraper 107 to drive the scraper 107 to approach or move away from the printing roller 103.

[0051] In the embodiment, as shown in Figure 2 the first driving part 108 includes a support bottom plate, a first support plate and two first driving devices. The support bottom plate is connected with the support frame 102. The first driving device is specifically a pneumatic cylinder, and the two pneumatic cylinders are arranged on the support bottom plate along the length direction of the printing roller 103. The driving end of each of the two pneumatic cylinders is connected with the first support plate to drive the first support plate to approach or move away from the printing roller 103. Optionally, a slide rail and a slide block are arranged between the support bottom plate and the first support plate, so that the first support plate can slide on the support bottom plate, thereby realizing the support and guidance of the first support plate.

[0052] The second driving part 109 comprises a second support plate and two second driving devices, which are specifically motors, and the two motors are arranged on the first support plate along the length direction of the printing roller 103. The driving ends of the two motors are connected with the second support plate through nuts, and synchronous rotation of the two motors can drive the second support plate to be close to or away from the printing roller 103. Alternatively, a sliding rail and a sliding block are arranged between the first support plate and the second support plate, so that the second support plate can slide on the first support plate, thereby realizing the support and guidance of the second support plate.

[0053] The scraper 107 is connected with the second support plate, so that the scraper 107 can be close to or away from the printing roller 103 under the joint action of the first driving part 108 and the second driving part 109. The first driving part 108 is used for driving the scraper 107 to be close to or away from the printing roller 103 in a large stroke, and the second driving part 109 is used for fine adjustment of the position of the scraper 107, thereby realizing fast and fine adjustment of the position of the scraper 107.

[0054] In the optional scheme of this embodiment, the first identification assembly 105 comprises a first visual camera 110 and a second driving assembly 111; the first visual camera 110 is used for identifying the width of the strip-shaped light band; and the second driving assembly 111 is connected with the first visual camera 110 to drive the first visual camera 110 to reciprocate along the length direction of the printing roller 103.

[0055] In this embodiment, in the process of scraping the paste on the printing roller 103 by the scraper 107, in order to avoid that the paste thickness is inconsistent at different positions on the printing roller 103, the second driving assembly 111 is arranged to drive the first visual camera 110 to reciprocate along the length direction of the printing roller 103, so as to monitor the consistency of the width of the strip-shaped light band on the printing roller 103. Specifically, the second driving assembly 111 comprises a motor, a guide rod, a linear bearing, an extension plate and a screw rod. The first visual camera 110 is connected with the linear bearing, and the linear bearing is sleeved on the guide rod. The printing roller 103, the screw rod and the guide rod are arranged in parallel. The first visual camera 110 is connected with the extension plate, and the extension plate is threadedly connected with the screw rod. The motor is installed on the support frame 102 and drives the screw rod to rotate, so as to drive the extension plate and the first visual camera 110 to reciprocate.

[0056] In the optional scheme of this embodiment, the scraper control mechanism further comprises an alarm device; the first identification assembly 105 is further used for detecting the scratch formed by the scraper 107 on the printing roller 103, and when the scraper 107 forms the scratch on the printing roller 103, the first identification assembly 105 is in communication connection with the alarm device, so that the alarm device sends an alarm information, thereby reminding the user to replace the scraper 107 in time, so as to avoid that the blade is damaged due to long use of the scraper 107 and affects the coating quality.

[0057] In an optional scheme of the embodiment, the coating device further comprises a missing coating control mechanism; the coating mechanism 101 further comprises a discharge traction adsorption roller 112 and an arc-shaped roller 113, the discharge traction adsorption roller 112 and the arc-shaped roller 113 are rotatably installed on the support frame 102; the missing coating control mechanism comprises a second identification assembly 114 and a third driving assembly 115, the arc-shaped roller 113 is connected with the driving end of the third driving assembly 115, and the base film 125 passes through the arc-shaped roller 113 and the discharge traction adsorption roller 112 in sequence; the second identification assembly 114 is arranged in a spaced manner with the discharge traction adsorption roller 112 to identify the coating condition of the base film 125 passing through the discharge traction adsorption roller 112; according to the identified coating condition, the second identification assembly 114 is in communication connection with the third driving assembly 115 to enable the third driving assembly 115 to drive the arc-shaped roller 113 to rotate to tension or relax the base film 125.

[0058] In the embodiment, the second identification assembly 114 comprises a bracket and two second visual cameras installed on the bracket, the bracket is connected with the support frame 102, and the two second visual cameras are respectively opposite to the two ends of the coating area of the base film 125 to detect the large-area missing coating problem of the two ends of the base film 125. After the base film 125 is coated by the printing roller 103, the base film 125 can be output from the coating mechanism 101 through the conveying of the passing roller 127 and the discharge traction adsorption roller 112. When the base film 125 is output from the discharge traction adsorption roller 112, if the edge missing coating problem of the base film 125 occurs, it is mainly caused by the edge collapse of the base film 125, and the situation of the edge collapse can be improved by adjusting the bending angle of the arc-shaped roller 113 to tension the base film 125. Specifically, the two ends of the arc-shaped roller 113 are rotatably fixed on the support frame 102 by an arc-shaped roller support, and the third driving assembly 115 comprises a motor arranged at one end of the arc-shaped roller 113, the motor is connected with the arc-shaped roller support, and the bending angle of the arc-shaped roller 113 can be adjusted by the rotation of the motor. The arc-shaped roller 113 is provided with an angle sensor to detect the bending angle of the arc-shaped roller 113.

[0059] In an optional scheme of the embodiment, the coating device further comprises a fourth driving assembly 116 and a pushing roller 117, the pushing roller 117 is slidably arranged on the support frame 102, the pushing roller 117 is connected with the driving end of the fourth driving assembly 116, the pushing roller 117 is located downstream of the arc-shaped roller 113, and the base film 125 passes through the arc-shaped roller 113, the pushing roller 117 and the discharge traction adsorption roller 112 in sequence; according to the identified coating condition, the second identification assembly 114 is in communication connection with the fourth driving assembly 116 to enable the fourth driving assembly 116 to drive the pushing roller 117 to push the base film 125 to be close to or away from the printing roller 103.

[0060] In the embodiment, if the adjustment of the arc-shaped roller 113 is invalid to improve the missing coating problem of the base film 125, the position of the pushing roller 117 can be adjusted to tension the base film 125 to improve the situation of the edge collapse. Figure 3The advancing rollers 117 shown in FIG. 1 include two upper and lower advancing rollers 117, and the two advancing rollers 117 are synchronously moved towards the printing roller 103, which can effectively reduce the problem of missing coating of the base film 125.

[0061] In an optional scheme of this embodiment, the fourth driving assembly 116 includes a third driving part 118 and a fourth driving part 119; the third driving part 118 is connected with the fourth driving part 119 to drive the fourth driving part 119 to move towards or away from the printing roller 103; and the fourth driving part 119 is connected with the advancing roller 117 to drive the advancing roller 117 to move towards or away from the printing roller 103.

[0062] In this embodiment, as shown in FIGS. 1 and 2, the fourth driving assembly 116 is provided on the advancing roller 117 to synchronously drive the advancing roller 117 to reciprocate. Figure 3 Figure 4 As shown in FIGS. 1 and 2, the number of the fourth driving assembly 116 is two, and the fourth driving assembly 116 is respectively arranged at two ends of the advancing roller 117 to synchronously drive the advancing roller 117 to reciprocate. The third driving part 118 includes a third support plate and a third driving device. The third driving device is a cylinder, and is arranged on the side plate of the support frame 102. The driving end of the cylinder is connected with the third support plate to drive the third support plate to move towards or away from the printing roller 103. Optionally, a sliding rail and a sliding block are arranged between the side plate of the support frame 102 and the third support plate, so that the third support plate can slide on the side plate of the support frame 102, thereby achieving support and guidance of the third support plate.

[0063] The fourth driving part 119 includes a fourth support plate and a fourth driving device. The fourth driving device is a motor, and is arranged on the third support plate. The driving end of the motor is connected with the fourth support plate through a nut, and the motor can drive the fourth support plate to move towards or away from the printing roller 103 by rotating. Optionally, a sliding rail and a sliding block are arranged between the third support plate and the fourth support plate, so that the fourth support plate can slide on the third support plate, thereby achieving support and guidance of the fourth support plate.

[0064] The advancing roller 117 is connected with the fourth support plate, so that the advancing roller 117 can move towards or away from the printing roller 103 under the joint action of the third driving part 118 and the fourth driving part 119. The third driving part 118 is used to drive the advancing roller 117 to move towards or away from the printing roller 103 in a large stroke, and the fourth driving part 119 is used to finely adjust the position of the advancing roller 117, thereby achieving fast and fine adjustment of the position of the advancing roller 117.

[0065] In an optional scheme of this embodiment, the coating device further includes a preheating oven 120; the preheating oven 120 is arranged at intervals with the coating mechanism 101, and the outlet of the preheating oven 120 is opposite to the feeding side of the coating mechanism 101; and the second identification assembly 114 is in communication connection with the preheating oven 120 to adjust the preheating temperature according to the identified coating condition.

[0066] ​In this embodiment, when the coating process is started, the base film 125 needs to pass through the preheating oven 120 for preheating before entering the coating mechanism 101, so that the paste adhesion effect is better. When the base film 125 has a coating leakage problem, the temperature of the preheating oven 120 can be increased to improve the bonding force between the paste and the base film 125, which can to some extent avoid the base film 125 from being coated. When the above-mentioned adjustment measures for leakage are invalid, the equipment is alarmed and stopped.

[0067] In the optional scheme of this embodiment, the coating equipment further comprises a center adjustment mechanism 121 located between the preheating oven 120 and the coating mechanism 101; the center adjustment mechanism 121 comprises a deviation corrector 122, an adjustment roller 123 and a fifth driving assembly 124; the deviation corrector 122 is arranged adjacent to the adjustment roller 123, and the deviation corrector 122 is used to identify the deviation degree of the base film 125 in the width direction; at least one end of the adjustment roller 123 is provided with the fifth driving assembly 124, and the fifth driving assembly 124 is used to drive the end of the adjustment roller 123 in the vertical direction according to the identified deviation degree.

[0068] In this embodiment, after the base film 125 passes through the preheating oven 120, the base film 125 enters the coating mechanism 101 through the traction of the suction roller 126 of the coating mechanism 101 to realize the coating operation. Since the base film 125 is prone to deviation in the preheating oven 120, the center adjustment mechanism 121 is arranged between the preheating oven 120 and the coating mechanism 101 to ensure that the base film 125 is always in the center position and avoid coating deviation.

[0069] The center adjustment mechanism 121 comprises a deviation corrector 122, an adjustment roller 123 and a fifth driving assembly 124. Both ends of the adjustment roller 123 are provided with an adjustment roller support and a column, and a slide rail and a slide table are arranged between the adjustment roller support and the column. The fifth driving assembly 124 comprises a motor arranged at one end of the adjustment roller 123, the motor is connected with the adjustment roller support, and the motor rotation can change the height of the end of the adjustment roller 123, so as to adjust the level of the adjustment roller 123. The deviation corrector 122 is arranged downstream of the adjustment roller 123, and the deviation corrector 122 is located on the opposite side of the motor. When the edge of the base film 125 approaches the deviation corrector 122, the motor is forward rotated to make the end of the adjustment roller 123 close to the deviation corrector 122 higher than the other end, so as to make the base film 125 away from the deviation corrector 122; on the contrary, the motor is reversely rotated to make the end of the adjustment roller 123 close to the deviation corrector 122 lower than the other end, so as to make the base film 125 close to the deviation corrector 122.

[0070] Embodiment two

[0071] The coating equipment in this embodiment two is improved on the basis of the above-mentioned embodiments, and the technical contents disclosed in the above-mentioned embodiments are not repeatedly described, and the contents disclosed in the above-mentioned embodiments also belong to the contents disclosed in this embodiment two.

[0072] In an optional embodiment, the coating equipment further includes a feeding mechanism; the feeding mechanism is mounted on the support frame 102 and is located below the printing roller 103; the feeding mechanism includes a feeding device 128 and a material box 129; the material box 129 includes an inner groove 130 and an outer groove 131 surrounding the inner groove 130; the feeding device 128 communicates with the inner groove 130 to supply slurry to the inner groove 130; the bottom of the printing roller 103 is placed inside the inner groove 130 to be coated with slurry; the height of the groove edge of the inner groove 130 is lower than the height of the groove edge of the outer groove 131, so that the slurry in the inner groove 130 overflows into the outer groove 131; the outer groove 131 communicates with the feeding device 128 so that the overflowing slurry flows back to the feeding device 128.

[0073] In this embodiment, see Figure 6 As shown, the material box 129 has an open structure. The bottom of the material box 129 has two return inlets and three feed inlets. The front of the material box 129 is divided into an inner tank 130 and an outer tank 131. The slurry is fed into the inner tank 130 through the feed inlets at the bottom. The liquid level in the inner tank 130 gradually rises and overflows into the outer tank 131. The outer tank 131 surrounds the inner tank 130, and its edge is higher than that of the inner tank 130 to ensure that air bubbles floating on the surface of the liquid in the inner tank 130 quickly flow into the outer material box 129. The material box 129 is fixed to the side plate of the support frame 102 by an extension plate and is installed directly below the printing roller 103, ensuring that the printing roller 103 is partially immersed in the inner tank 130.

[0074] The feeding device 128 includes a feeding hopper, a feeding pump, and a pressure sensor. The feeding hopper is equipped with a hopper outlet, a hopper return outlet, and a hopper inlet. The hopper return outlet is connected to the return port of the material box 129 via a hose. The hopper outlet is connected to one end of the feeding pump, and the other end of the feeding pump is connected to the inlet of the material box 129. The pressure sensor is located at the hopper return outlet and is used to determine whether slurry has overflowed from the outer tank 131. When the pressure sensor detects a pressure value, it indicates that the printing roller 103 has been adhered to slurry, and the thickness of the slurry adhered to the printing roller 103 can be detected.

[0075] It should be noted that the above-mentioned embodiments are only used to illustrate but not to limit the technical solutions of the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application. In addition, those skilled in the art can understand that the combination of features of different embodiments means that it is within the scope of the present application and forms different embodiments, although some embodiments include certain features rather than other features included in other embodiments.

Claims

1. A coating apparatus characterized by comprising: The coating mechanism (101) and the scraper control mechanism are included. The coating mechanism (101) includes a support frame (102) and a printing roller (103), and the printing roller (103) is rotatably installed on the support frame (102). The scraper control mechanism is installed on the support frame (102), and the scraper control mechanism includes an illuminating lamp (104), a first identification assembly (105) and a first driving assembly (106); the illuminating lamp (104) is arranged at intervals with the printing roller (103) to project a strip-shaped light band on the printing roller (103) coated with slurry; the first identification assembly (105) is arranged at intervals with the printing roller (103) to identify the width of the strip-shaped light band; the first identification assembly (105) is communicatively connected with the first driving assembly (106), and according to the identified width of the strip-shaped light band, the first driving assembly (106) drives the scraper (107) to approach or move away from the printing roller (103).

2. The coating apparatus according to claim 1, characterized by The first driving assembly (106) includes a first driving part (108) and a second driving part (109); the first driving part (108) is connected with the second driving part (109) to drive the second driving part (109) to approach or move away from the printing roller (103); The second driving part (109) is connected with the scraper (107) to drive the scraper (107) to approach or move away from the printing roller (103).

3. The coating apparatus according to claim 1, wherein The first identification assembly (105) includes a first vision camera (110) and a second driving assembly (111); The first vision camera (110) is used to identify the width of the strip-shaped light band; The second driving assembly (111) is connected with the first vision camera (110) to drive the first vision camera (110) to reciprocate along the length direction of the printing roller (103).

4. The coating apparatus according to claim 1, wherein The scraper control mechanism further includes an alarm device; The first identification assembly (105) is further used to detect the scratch formed by the scraper (107) on the printing roller (103), and when the scraper (107) forms a scratch on the printing roller (103), the first identification assembly (105) is communicatively connected with the alarm device to make the alarm device issue an alarm information.

5. The coating apparatus according to claim 1, wherein The coating mechanism (101) further includes a discharge traction adsorption roller (112) and an arc-shaped roller (113), and the discharge traction adsorption roller (112) and the arc-shaped roller (113) are rotatably installed on the support frame (102). ​ The leakage control mechanism comprises a second identification assembly (114) and a third driving assembly (115), the arc-shaped roller (113) is connected with a driving end of the third driving assembly (115), and the base film (125) sequentially passes through the arc-shaped roller (113) and the discharge traction and adsorption roller (112); the second identification assembly (114) is arranged at intervals with the discharge traction and adsorption roller (112) to identify the coating condition of the base film (125) passing through the discharge traction and adsorption roller (112); according to the identified coating condition, the second identification assembly (114) is in communication connection with the third driving assembly (115) to enable the third driving assembly (115) to drive the arc-shaped roller (113) to rotate to tension or relax the base film (125).

6. The coating apparatus according to claim 5, wherein Further comprising a fourth driving assembly (116) and a pushing roller (117), the pushing roller (117) is slidingly arranged on the support frame (102), the pushing roller (117) is connected with a driving end of the fourth driving assembly (116), the pushing roller (117) is located downstream of the arc-shaped roller (113), and the base film (125) sequentially passes through the arc-shaped roller (113), the pushing roller (117) and the discharge traction and adsorption roller (112); According to the identified coating condition, the second identification assembly (114) is in communication connection with the fourth driving assembly (116) to enable the fourth driving assembly (116) to drive the pushing roller (117) to push the base film (125) to be close to or away from the printing roller (103).

7. The coating apparatus according to claim 6, characterized in that The fourth driving assembly (116) comprises a third driving part (118) and a fourth driving part (119); the third driving part (118) is connected with the fourth driving part (119) to drive the fourth driving part (119) to be close to or away from the printing roller (103); The fourth driving part (119) is connected with the pushing roller (117) to drive the pushing roller (117) to be close to or away from the printing roller (103).

8. The coating apparatus according to claim 5, wherein Further comprising a preheating oven (120); The preheating oven (120) is arranged at intervals with the coating mechanism (101), and an outlet of the preheating oven (120) is opposite to a feeding side of the coating mechanism (101); According to the identified coating condition, the second identification assembly (114) is in communication connection with the preheating oven (120) to adjust the preheating temperature.

9. The coating apparatus according to claim 8, characterized in that Further comprising a centering adjustment mechanism (121); The centering adjustment mechanism (121) is located between the preheating oven (120) and the coating mechanism (101); The centering adjusting mechanism (121) comprises a deviation corrector (122), an adjusting roller (123) and a fifth driving assembly (124); the deviation corrector (122) is arranged adjacent to the adjusting roller (123), and the deviation corrector (122) is used for identifying the deviation degree of the base film (125) in the width direction; at least one end of the adjusting roller (123) is provided with the fifth driving assembly (124), and the fifth driving assembly (124) is used for driving the height of the end of the adjusting roller (123) in the vertical direction according to the identified deviation degree.

10. The coating apparatus according to claim 1, wherein The feeding mechanism is further included; the feeding mechanism is mounted on the support frame (102), and the feeding mechanism is located below the printing roller (103); The feeding mechanism comprises a feeding device (128) and a material box (129); The material box (129) comprises an inner groove (130) and an outer groove (131) which is circumferentially arranged around the inner groove (130); the feeding device (128) is communicated with the inner groove (130) to supply the slurry to the inner groove (130); the bottom of the printing roller (103) is arranged in the inner groove (130) to dip the slurry; The groove height of the inner groove (130) is lower than the groove height of the outer groove (131), so that the slurry in the inner groove (130) overflows to the outer groove (131); the outer groove (131) is communicated with the feeding device (128), so that the overflowed slurry flows back to the feeding device (128).

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