An automatic cleaning device for the inking rollers of a beverage cup printing machine

Abstract

This utility model relates to the field of beverage cup processing technology, and provides an automatic cleaning device for the ink rollers of a beverage cup printing machine. It includes a printing machine frame and an ink feeding mechanism mounted on the frame. From the outside to the inside, an ink cartridge, an ink fountain roller, an ink transfer roller, an ink distribution roller, and an ink distribution roller are sequentially installed on the frame. The ink feeding mechanism also includes a cleaning mechanism. A detachable ink receiving tray is located below the ink cartridge, ink fountain roller, ink transfer roller, ink distribution roller, and ink distribution roller on the frame to collect dripping ink during ink feeding. The cleaning mechanism includes a cleaning tray and a cleaning scraper. The cleaning tray is detachably connected to the frame, and the replaceable ink receiving tray cleans the ink cartridge, ink fountain roller, ink transfer roller, and ink distribution roller. The cleaning scraper is adjustablely mounted on the cleaning tray, and its blade is tangential to the ink distribution roller to scrape away ink. A drain outlet is provided at the bottom of the cleaning tray. This utility model solves the problems of low cleaning efficiency and long cleaning time of the ink distribution roller in existing beverage cup printing machine ink feeding mechanisms.

Description

Technical Field

[0001] This utility model relates to the field of beverage cup processing technology, and in particular to an automatic cleaning device for the ink roller of a beverage cup printing machine. Background Technology

[0002] Beverage cups are containers used for long-term consumption of fruit juices, soft drinks, sweet wines, and sour cocktails; they are commonly used disposable beverage cups. Disposable beverage cups are typically manufactured using two methods: injection molding and thermoforming. However, injection molding is costly and inefficient. Therefore, beverage cups are often produced using the more efficient thermoforming method. Thermoforming is a specialized plastic processing method that shapes thermoplastic sheets into various products. The plastic sheet is clamped in a frame and heated to a softened state. Under external force, it is forced to conform to the mold surface to achieve a shape similar to the mold surface. After cooling and setting, it is trimmed to obtain the finished product.

[0003] Existing beverage cups require printing after manufacturing. Compared to traditional printing, ink printing makes the printed patterns and text on beverage cups more aesthetically pleasing, and ink printing equipment is increasingly used in daily life and the market. Currently, most ink printing equipment involves manually scooping ink from the ink tank and feeding it into the ink reservoir. The ink is then transferred to the coloring roller via an ink transfer roller, which then prints the ink onto the beverage cup. However, different consumers have different requirements for the printed patterns or text on their beverage cups, including different color and pattern layouts. This necessitates cleaning the coloring roller during printing. Current methods often involve manual disassembly and cleaning, which is frequently insufficient. This results in ink residue affecting print quality when printing patterns or text on different beverage cups. Furthermore, manual disassembly and cleaning is inefficient and time-consuming. Utility Model Content

[0004] Therefore, in view of the above problems, this utility model proposes an automatic cleaning device for the ink roller of a beverage cup printing machine that is easy to use, has high cleaning efficiency, and is fast.

[0005] To solve this technical problem, the present invention adopts the following solution: an automatic cleaning device for the ink rollers of a beverage cup printing machine, comprising a printing machine frame and an ink feeding mechanism mounted on the printing machine frame. The ink feeding mechanism includes a frame, on which an ink box, an ink fountain roller, an ink transfer roller, an ink conveying roller, and an ink leveling roller are sequentially mounted from the outside to the inside. The ink fountain roller, ink transfer roller, ink conveying roller, and ink leveling roller are tangent to each other in sequence. The ink feeding mechanism also includes a cleaning mechanism located on the frame. A detachable ink receiving tray is provided below the ink roller, ink transfer roller, and ink distribution roller to collect ink drips during ink feeding. The cleaning mechanism includes a cleaning tray and a cleaning blade. The cleaning tray has an installation position that matches the ink receiving tray. The cleaning tray is detachably connected to the frame and can replace the ink receiving tray to clean the ink box, ink fountain roller, ink transfer roller, ink distribution roller, and ink distribution roller. The cleaning blade is adjustablely mounted on the cleaning tray and its blade is tangential to the ink distribution roller to scrape off the ink on the ink distribution roller. A drain outlet is provided at the bottom of the cleaning tray.

[0006] In a further improvement, the blade of the cleaning scraper can be any one of a plastic scraper, a rubber scraper, or a plastic scraper.

[0007] In a further improvement, the cleaning disc is located below the ink distribution roller and is equipped with an adjustable rotating shaft, and the cleaning scraper is fixed on the axial surface of the rotating shaft.

[0008] In a further improvement, one end of the rotating shaft extends outward through the cleaning tray and an adjustment handle is fixed on the free end. A limiting groove is provided between the adjusting handle and the edge of the cleaning tray on the rotating shaft, and a positioning bolt that cooperates with the upper limiting groove of the rotating shaft is provided on the frame.

[0009] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: By setting a cleaning disc with an installation position consistent with the ink receiving disc on the ink feeding mechanism, the cleaning mechanism can be detachably connected to the frame. When it is necessary to clean the ink box, ink fountain roller, ink transfer roller, ink conveying roller, and ink leveling roller of the ink feeding mechanism, the ink receiving disc is removed, the cleaning mechanism is installed to replace the position of the ink receiving disc, and the blade of the cleaning doctor blade is adjusted to be tangent to the ink leveling roller. By introducing cleaning agent and water into the ink box, the ink feeding mechanism is started to make the ink fountain roller, ink transfer roller, ink conveying roller, and ink leveling roller run. With the cleaning doctor blade scraping the ink leveling roller, the ink fountain roller, ink transfer roller, and ink leveling roller can be automatically cleaned. At the same time, the cleaning wastewater is discharged from the drain outlet at the bottom of the cleaning disc to the wastewater discharge point through the pipe. Automatic cleaning can be achieved simply by replacing the cleaning mechanism and the ink receiving disc. The cleaning effect is good, the cleaning efficiency is high, and it is convenient and fast to use. After cleaning, the cleaning mechanism is removed and the ink receiving disc is reinstalled to continue printing. The blade of the cleaning scraper can be made of plastic, rubber, or plastic, making it easier to remove ink without damaging the ink distribution roller, resulting in better performance and wider application. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0011] Figure 2 This is a partially exploded structural diagram of an embodiment of the present invention;

[0012] Figure 3 This is a schematic diagram of the installation and cleaning mechanism according to an embodiment of the present utility model;

[0013] Figure 4 This is a schematic diagram of the cleaning mechanism structure according to an embodiment of the present invention. Detailed Implementation

[0014] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. The ink feeding mechanism is an existing device, and its structure has been disclosed in detail in Chinese patent document CN202121292004.3, which describes an ink feeding device for a plastic cup printing machine.

[0015] refer to Figures 1-4 The preferred embodiment of the present invention is an automatic cleaning device for the ink rollers of a beverage cup printing machine, comprising a printing machine frame and an ink feeding mechanism mounted on the printing machine frame. The ink feeding mechanism includes a frame 1, on which an ink box 2, an ink fountain roller 3, an ink transfer roller 4, an ink conveying roller 5, an ink leveling roller 6, and a cleaning mechanism 7 are sequentially mounted from the outside to the inside. The ink fountain roller 3, the ink transfer roller 4, the ink conveying roller 5, and the ink leveling roller 6 are tangent to each other. A detachable ink receiving tray 8 is provided on the frame 1 below the ink fountain roller 3, the ink transfer roller 4, the ink conveying roller 5, and the ink leveling roller 6 to collect ink drips during ink feeding. The cleaning mechanism 7 includes a cleaning tray 71 and a cleaning scraper 72. The cleaning tray 71 has an installation position consistent with the ink receiving tray 8. The cleaning tray 71 is detachably connected to the frame 1, and the ink receiving tray 7 can be replaced to clean the ink fountain roller 3, the ink transfer roller 4, the ink conveying roller 5, and the ink leveling roller 6. A cleaning scraper 72 is adjustablely mounted on a cleaning disc 71, and the scraper blade of the cleaning scraper 72 is tangential to the ink distribution roller 6 to scrape away the ink on the ink distribution roller 6. The cleaning disc 71 is located below the ink distribution roller 6 and is provided with an adjustable rotating shaft 711. The cleaning scraper 72 is fixedly mounted on the axial surface of the rotating shaft 711 inside the cleaning disc 71. One end of the rotating shaft 711 extends outward through the cleaning disc 71, and an adjustment handle is fixedly mounted on the free end. A limiting groove is provided between the adjusting handle and the edge of the cleaning disc 71. The frame 1 is provided with a positioning bolt 11 that cooperates with the upper limiting groove of the rotating shaft 711. When the cleaning scraper 72 is adjusted to the correct position, the positioning bolt 11 cooperates with the limiting groove on the rotating shaft 711 to lock and position the rotating shaft 711. The blade of the cleaning scraper 72 is a plastic scraper. A drain outlet 712 is provided at the bottom of the cleaning disc 71.

[0016] In the above embodiments, the blade of the cleaning scraper can also be either a rubber scraper or a plastic scraper.

[0017] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. An automatic cleaning device for the ink rollers of a beverage cup printing machine, comprising a printing machine frame and an ink feeding mechanism mounted on the printing machine frame, wherein the ink feeding mechanism includes a frame body, and an ink cartridge, an ink fountain roller, an ink transfer roller, an ink conveying roller, and an ink leveling roller are sequentially mounted on the frame body from the outside to the inside, wherein the ink fountain roller, the ink transfer roller, the ink conveying roller, and the ink leveling roller are tangent to each other in sequence, characterized in that: The ink feeding mechanism also includes a cleaning mechanism. A detachable ink receiving tray is provided on the frame below the ink box, ink fountain roller, ink transfer roller, ink conveying roller, and ink leveling roller to collect ink drips during ink feeding. The cleaning mechanism includes a cleaning tray and a cleaning blade. The cleaning tray has an installation position consistent with the ink receiving tray. The cleaning tray is detachably connected to the frame and can replace the ink receiving tray to clean the ink box, ink fountain roller, ink transfer roller, and ink leveling roller. The cleaning blade is adjustablely mounted on the cleaning tray and its blade is tangential to the ink leveling roller to scrape off the ink on the ink leveling roller. A drain outlet is provided at the bottom of the cleaning tray.

2. The automatic cleaning device for the inking roller of a beverage cup printing machine according to claim 1, characterized in that: The blade of the cleaning scraper can be any one of a plastic scraper, a rubber scraper, or a plastic scraper.

3. The automatic cleaning device for the inking roller of a beverage cup printing machine according to claim 1, characterized in that: The cleaning disc is located below the ink distribution roller and has an adjustable rotating shaft. The cleaning scraper is fixed on the axial surface of the rotating shaft.

4. The automatic cleaning device for the inking roller of a beverage cup printing machine according to claim 3, characterized in that: One end of the rotating shaft extends outward through the cleaning tray, and an adjustment handle is fixed on the free end. The rotating shaft is provided with a limiting groove between the adjustment handle and the edge of the cleaning tray. The frame is provided with a positioning bolt that cooperates with the upper limiting groove of the rotating shaft.

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