Protective film coating equipment for transfer printing of household appliance glass panel

Abstract

The utility model discloses protective film coating equipment for transfer printing of a household appliance glass panel, which comprises a conveying device, a positioning device and a coating device, the conveying device is used for conveying the glass panel, the positioning device is used for positioning the glass panel, and the coating device is used for coating the glass panel. The coating device comprises a support arranged outside the conveying device, a coating roller, a coating liquid storage tank and a coating liquid circulating system, and the coating liquid storage tank is connected with the coating roller through the coating liquid circulating system. According to the glass panel positioning device, the positioning device is of a double-rotation-direction screw and moving plate structure, opposite movement of guide rollers on the two sides is achieved through driving of a second motor, and a glass panel is guided and positioned; a coating roller in the coating device makes contact with the glass panel, the pressure of the coating roller and the glass panel is adjusted through an air cylinder, it is guaranteed that the surface of the glass panel can be evenly coated with the coating liquid, meanwhile, a circulating pump and a filter in the coating liquid circulating system can continuously supply the clean coating liquid, and the coating uniformity is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of glass panel processing technology, and more specifically, to protective film coating equipment for transferring glass panels for household appliances. Background Technology

[0002] In the manufacturing of glass panels for home appliances, protective films are often transferred onto the glass panel surface to meet the requirements for product appearance and protection. The coating process is a crucial step in the protective film transfer process. The coating quality directly affects the adhesion between the protective film and the glass panel, the protective performance, and the final product's appearance quality.

[0003] During the coating process, inaccurate positioning of the glass panel can lead to coating position deviations, affecting the accuracy of subsequent protective film transfer and thus reducing product quality. Therefore, it is necessary to solve the positioning problem of the glass panel before coating to ensure accurate coating position. Furthermore, uneven coating of the coating solution will result in inconsistent thickness of the protective film on the glass panel, affecting not only the protective performance of the film but also potentially causing appearance defects. Additionally, impurities may be introduced into the coating solution during recycling; if not filtered and cleaned promptly, these impurities will be coated onto the glass panel, affecting coating quality. This device was invented to address these problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a protective film coating device for transferring glass panels of household appliances, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective film coating device for transferring glass panels of household appliances, comprising:

[0006] Conveying device for conveying glass panels;

[0007] A positioning device, installed outside the conveying device, is used to position the glass panel;

[0008] The coating device includes a support frame, a coating roller, a coating liquid storage tank, and a coating liquid circulation system, all located outside the conveying device. Cylinders are installed on both sides of the support frame, and connectors are connected to the piston rods of both cylinders. The coating roller is positioned between the connectors on both sides, and the coating liquid storage tank is connected to the coating roller via the coating liquid circulation system.

[0009] Furthermore, the positioning device includes a frame installed outside the conveying device, a double-rotating screw rotatably mounted on the frame, a guide rod fixedly mounted on the frame and passing through the moving plate, a second motor installed on the frame with its output shaft connected to the double-rotating screw, two moving plates threadedly connected to both sides of the double-rotating screw and slidingly engaged with the guide rod, a frame fixedly mounted on the bottom of the moving plate, and multiple guide rollers rotatably mounted on the frame at equal intervals.

[0010] Furthermore, the coating liquid circulation system includes a circulation pump mounted on a support, a first pipe with one end connected to the bottom of the coating liquid storage tank and the other end connected to the inlet of the circulation pump, a second pipe with one end connected to the outlet of the circulation pump, a filter installed in the second pipe for filtering impurities in the coating liquid, and a rotary joint located at the end of the second pipe and connected to the coating roller. The circulation pump draws the coating liquid from the coating liquid storage tank through the first pipe, filters it through the filter, and then delivers it to the coating roller through the rotary joint.

[0011] Furthermore, the coating apparatus also includes a coating liquid stirring device, which includes a rotating rod rotatably mounted on the coating liquid storage tank, stirring blades fixedly mounted on the rotating rod, and a primary motor disposed on the coating liquid storage tank and whose output shaft is connected to the rotating rod. The primary motor drives the rotating rod and stirring blades to rotate to stir the coating liquid in the coating liquid storage tank.

[0012] Furthermore, the outer wall of the coating liquid storage tank is provided with multiple heating plates, which are used to heat the coating liquid in the storage tank to improve its fluidity.

[0013] Furthermore, the protective film coating equipment for transferring glass panels for home appliances also includes a control system, which includes a touch screen and a controller. The touch screen is used to input operation commands, and the controller is used to control the operation of the conveying device, positioning device, and coating device according to the operation commands.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The positioning device adopts a double-rotating screw and moving plate structure. Driven by a No. 2 motor, it realizes the opposite movement of the guide rollers on both sides, which can guide and position the glass panel, ensuring the accuracy of the coating position and providing a reliable guarantee for subsequent coating operations. The coating roller in the coating device contacts the glass panel. The pressure between the coating roller and the glass panel is adjusted by a cylinder to ensure that the coating liquid can be evenly coated on the surface of the glass panel. At the same time, the circulation pump and filter in the coating liquid circulation system can continuously supply clean coating liquid, further ensuring the uniformity of coating.

[0016] 2. The coating device is equipped with a stirring device and a heating element. The stirring device stirs the coating liquid by rotating the rod and stirring blades to prevent sedimentation and solidification. The heating element heats the coating liquid to further improve its fluidity and ensure the smooth progress of the coating process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a structural schematic diagram of the present invention;

[0019] Figure 2 Top view of the structure provided for this utility model;

[0020] Figure 3 Provided by this utility model Figure 2 Enlarged view of region A in the middle;

[0021] Figure 4 A schematic diagram of the coating device provided by this utility model;

[0022] Figure 5 Rear view of the coating apparatus provided by this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Conveying device; 2. Positioning device; 201. Frame; 202. Double-rotating screw; 203. Guide rod; 204. Moving plate; 205. Second motor; 206. Frame; 207. Guide roller; 3. Coating device; 301. Support; 302. Coating roller; 303. Coating liquid storage tank; 304. Coating liquid circulation system; 3041. Circulation pump; 3042. First pipe; 3043. Second pipe; 305. Cylinder; 306. Connector; 307. Coating liquid stirring device; 3071. Rotating rod; 3072. Stirring blade; 3073. First motor; 308. Heating element; 4. Touch screen. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] See attached document Figures 1-5 The protective film coating equipment for transferring glass panels of household appliances in this embodiment includes a conveying device 1, a coating device 3, a positioning device 2, and a control system. The control system is used to control the operation of the conveying device 1, the positioning device 2, and the coating device 3 to achieve automated coating.

[0028] The conveying device 1 adopts a common tracked conveyor. Since its structure is common and belongs to the prior art, it will not be described in detail in this application. The conveying device 1 is used to transport glass panels and provide a basis for subsequent coating and positioning operations.

[0029] See attached document Figure 2 and Figure 3 When the glass panel reaches the coating area, the positioning device 2 starts working. The positioning device 2 is used to position the glass panel to ensure that the glass panel remains stable during the conveying process. The positioning device 2 includes a frame 201 set outside the conveying device 1. A double-rotating screw 202 is rotatably mounted on the frame 201, and a guide rod 203 is fixedly mounted on the frame 201. A second motor 205 is set on the frame 201. The output shaft of the second motor 205 is connected to the double-rotating screw 202. When in use, the second motor 205 is turned on, and the output shaft of the second motor 205 drives the double-rotating screw 202 to rotate. Moving plates 204 are threadedly connected to both sides of the double-rotating screw 202, and the guide rod 203 passes through the moving plates 204 on both sides. A frame 206 is fixedly mounted at the bottom of the moving plates 204, and multiple guide rollers 207 are rotatably mounted at equal intervals on the frame 206. When the glass panel is transported on the conveyor device 1, the second motor 205 is turned on. The output shaft of the second motor 205 drives the double-rotating screw 202 to rotate, so that the moving plates 204 on both sides move towards each other, causing the guide rollers 207 on both sides to move towards each other, thereby guiding and positioning the glass panel and ensuring the subsequent coating operation.

[0030] See attached document Figure 1 , Figure 4 and Figure 5The coating device 3 includes a support 301, a coating roller 302, a coating liquid storage tank 303, and a coating liquid conveying system. The support 301 is located outside the conveying device 1. Cylinders 305 are provided on both sides of the support 301. Connectors 306 are connected to the piston rod ends of the cylinders 305 on both sides. The coating roller 302 is located between the connectors 306 on both sides. The coating roller 302 is in contact with the glass panel and is used to uniformly coat the surface of the glass panel with the coating liquid. The coating liquid storage tank 303 is fixedly installed on the top of the support 301 and is used to store the coating liquid. The coating liquid is conveyed to the coating roller 302 through the coating liquid conveying system.

[0031] The coating liquid storage tank 303 is equipped with a liquid level sensor to monitor the liquid level of the coating liquid. When the liquid level is lower than the set value, the control system controls the replenishment of the coating liquid. The bottom of the coating liquid storage tank 303 has a conical structure to facilitate the outflow of the coating liquid and reduce the risk of blockage.

[0032] See attached document Figure 1 , Figure 4 and Figure 5 The coating liquid circulation system 304 includes a circulation pump 3041 and a filter. The circulation pump 3041 is mounted on a support 301. The bottom of the coating liquid storage tank 303 is connected to a first pipe 3042. The coating liquid storage tank 303 is connected to the inlet of the circulation pump 3041 through the first pipe 3042 for drawing coating liquid. The outlet of the circulation pump 3041 is connected to a second pipe 3043. The filter is installed in the second pipe 3043 of the circulation pump 3041. The circulation pump 3041 is used to transport the coating liquid from the coating liquid storage tank 303 to the coating roller 302. The filter is used to filter impurities in the coating liquid. The end of the second pipe 3043 is connected to a rotary joint, which is connected to the coating roller 302. Both the first pipe 3042 and the second pipe 3043 are flexible hoses.

[0033] As an optional embodiment, the coating apparatus 3 also includes a coating liquid stirring device 307, which is mounted on the coating liquid storage tank 303. The stirring device 307 includes a rotating rod 3071 rotatably mounted on the coating liquid storage tank 303, and stirring blades 3072 fixedly mounted on the rotating rod 3071. A primary motor 3073 is mounted on the coating liquid storage tank 303 and is connected to the rotating rod 3071. When in use, the primary motor 3073 is turned on, and the output shaft of the primary motor 3073 drives the rotating rod 3071 and the stirring blades 3072 to rotate, thereby stirring the coating liquid, preventing sedimentation and solidification, and improving the fluidity of the coating liquid.

[0034] Furthermore, the outer wall of the coating liquid storage tank 303 is provided with multiple heating elements 308 for heating the coating liquid to improve its fluidity.

[0035] The control system includes a touch screen 4 and a controller. The touch screen 4 is used to input operation commands, and the controller is used to control the operation of the conveying device 1, the coating device 3 and the positioning device 2 according to the operation commands.

[0036] In the technical solution adopted in this embodiment, operation commands are first input through the touch screen 4, and the controller controls the operation of the equipment: the crawler conveyor of the conveying device 1 transports the glass panel to the coating area; the second motor 205 of the positioning device 2 drives the double-rotating screw 202 to rotate, so that the two moving plates 204 on both sides move towards each other, driving the guide roller 207 to guide and position the glass panel; the cylinder 305 of the coating device 3 pushes the connecting piece 306 to make the coating roller 302 contact the glass panel; the circulating pump 3041 draws the coating liquid from the coating liquid storage tank 303, filters it through the filter, and then transports it to the coating roller 302; at the same time, the stirring device stirs and the heating plate 308 heats the coating liquid to improve its fluidity, so that the coating liquid is evenly coated on the surface of the glass panel; and the liquid level sensor monitors the liquid level, and automatically replenishes the coating liquid when it is low, so as to realize automated coating.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective film coating equipment for transferring glass panels of household appliances, characterized in that, include: Conveying device (1), used for conveying glass panels; Positioning device (2) is installed outside the conveying device (1) and is used to position the glass panel; The coating device (3) includes a support (301), a coating roller (302), a coating liquid storage tank (303), and a coating liquid circulation system (304) disposed outside the conveying device (1). The support (301) is provided with cylinders (305) on both sides, and the piston rod ends of the cylinders (305) on both sides are connected to connectors (306). The coating roller (302) is disposed between the connectors (306) on both sides. The coating liquid storage tank (303) is connected to the coating roller (302) through the coating liquid circulation system (304).

2. The protective film coating equipment for transferring glass panels for household appliances according to claim 1, characterized in that: The positioning device (2) includes a frame (201) disposed outside the conveying device (1), a double-rotating screw (202) rotatably mounted on the frame (201), a guide rod (203) fixedly mounted on the frame (201) and passing through the moving plate (204), a second motor (205) disposed on the frame (201) and whose output shaft is connected to the double-rotating screw (202), two moving plates (204) respectively threadedly connected to both sides of the double-rotating screw (202) and slidingly engaged with the guide rod (203), a frame (206) fixedly mounted at the bottom of the moving plate (204), and a plurality of guide rollers (207) rotatably mounted on the frame (206) at equal intervals.

3. The protective film coating equipment for transferring glass panels for household appliances according to claim 1, characterized in that: The coating liquid circulation system (304) includes a circulation pump (3041) mounted on the support (301), a first pipe (3042) with one end connected to the bottom of the coating liquid storage tank (303) and the other end connected to the inlet of the circulation pump (3041), a second pipe (3043) with one end connected to the outlet of the circulation pump (3041), a filter installed in the second pipe (3043) for filtering impurities in the coating liquid, and a rotary joint mounted at the end of the second pipe (3043) and connected to the coating roller (302). The circulation pump (3041) draws the coating liquid from the coating liquid storage tank (303) through the first pipe (3042), filters it through the filter, and then delivers it to the coating roller (302) through the rotary joint.

4. The protective film coating equipment for transferring glass panels for household appliances according to claim 1, characterized in that: The coating device (3) further includes a coating liquid stirring device (307), which includes a rotating rod (3071) rotatably mounted on the coating liquid storage tank (303), a stirring blade (3072) fixedly mounted on the rotating rod (3071), and a primary motor (3073) disposed on the coating liquid storage tank (303) and whose output shaft is connected to the rotating rod (3071). The primary motor (3073) drives the rotating rod (3071) and the stirring blade (3072) to rotate to stir the coating liquid in the coating liquid storage tank (303).

5. The protective film coating equipment for transferring glass panels for household appliances according to claim 4, characterized in that: The outer wall of the coating liquid storage tank (303) is provided with multiple heating elements (308).

6. The protective film coating equipment for transferring glass panels for household appliances according to claim 1, characterized in that: The protective film coating equipment for transferring glass panels of home appliances also includes a control system, which includes a touch screen (4) and a controller.

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