Ink scraping assembly of bottle body screen printing machine

Abstract

The utility model relates to a printing machine, and provides an ink scraping assembly of a bottle body screen printing machine, which comprises a fixed seat and a pair of ink scraping devices connected with the fixed seat, the ink scraping device comprises a scraping plate arranged below the fixed seat, a first driving rod connected with the scraping plate and vertically arranged, and a driving device connected with the first driving rod; the driving device is used for driving the first driving rod to move in the vertical direction, and the first driving rod is slidably connected with the fixing base. The ink scraping devices are arranged on the two opposite sides of the fixing base respectively. According to the ink scraping assembly of the bottle body screen printing machine, automatic ink scraping can be more efficiently achieved, printing ink can be smeared on a printing plate, and the printing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to an ink scraping assembly of a bottle screen printing machine. Background Art

[0002] Screen printing refers to the method of using a screen perforated plate and printing material to obtain a pattern by scraping, which is referred to as screen printing. The pattern accuracy of screen printing is lower than that of photochemical printing, but the process is simple, the production efficiency is high, the cost is low, and it is suitable for mass production.

[0003] In addition to being widely used in flat printing, screen printing can also be used for more regular curved surface printing, mainly referring to the surface printing of bottles. Since the surface of the bottle is a curved surface, it is usually chosen to stick the bottle under the printing plate during printing. The bottle then moves through the printing plate while the bottle rotates, so that different parts of the bottle contact different parts of the printing plate in turn, thereby completing the printing operation.

[0004] Therefore, for printing on curved surfaces such as bottles, you can also use a flat printing plate or a specially made curved printing plate. However, the scraper generally moves in the same direction during the scraping process, that is, it pushes the ink to one side of the printing plate, and then pulls the ink back after completion to make it flat on the printing plate, and then reprints. Therefore, screen printing is a process of continuous scraping and inking. If it is manual scraping, it is not easy to ensure that the ink is fully applied to the printing plate when applying the ink on the printing plate. If you want to scrape evenly, it will waste a certain amount of time. And in the process of the scraper pushing the ink, it will continuously push the ink to both sides of the scraper, so that the ink continues to gather on both sides of the printing plate, and it is necessary to manually adjust the ink continuously. And with repeated printing, a large amount of air will be mixed into the ink, causing the ink to deteriorate. Utility Model Content

[0005] The utility model aims to provide an ink scraping assembly for a bottle screen printer, which can more efficiently realize automatic ink scraping and smear ink on a printing plate, thereby improving printing efficiency.

[0006] The embodiment of the utility model is realized through the following technical scheme: the ink scraper assembly of the bottle screen printing machine of the utility model includes a fixed seat and a pair of ink scraper devices connected to the fixed seat; the ink scraper device includes a scraper arranged below the fixed seat, a first driving rod connected to the scraper and vertically arranged, and a driving device connected to the first driving rod; the driving device is used to drive the first driving rod to move in a vertical direction, and the first driving rod is slidably connected to the fixed seat; the pair of ink scraper devices are respectively arranged on opposite sides of the fixed seat.

[0007] Furthermore, it also includes an ink circulation device arranged between a pair of scrapers; the ink circulation device includes an oil suction device arranged between the pair of scrapers and close to the ends of the scrapers, and an oil replenishing device arranged at the upper end between the pair of scrapers.

[0008] Furthermore, the oil suction device includes an oil suction box, an oil suction hole opened on one side of a pair of oil suction boxes close to each other, an oil suction pipe connected to the inside of the oil suction box, a negative pressure machine connected to the oil suction pipe, and a connecting rod for connecting the oil suction box and the fixed seat; the oil replenishing device includes an oil replenishing box arranged on the lower side of the fixed seat, an oil replenishing hole opened on the lower side of the oil replenishing box, an oil replenishing pipe connected to the inside of the oil replenishing box, and a pump body connected to the oil replenishing pipe.

[0009] Furthermore, the outer wall of the oil absorption box is provided with a rubber layer.

[0010] Furthermore, a connecting plate is provided between the scraper and the first driving rod, the scraper and the connecting plate are hinged via a hinge shaft, and the connecting plate is fixedly connected to the first driving rod; a limiting device is provided between the scraper and the connecting plate.

[0011] Furthermore, the limiting device includes a limiting plate connected to the end of the connecting plate, an arc-shaped limiting hole opened in the limiting plate, a threaded hole opened in the end of the scraper, and a fastening bolt; the fastening bolt passes through the limiting hole and is threadedly connected with the threaded hole; the limiting hole takes the axis of the hinge shaft as the center.

[0012] Furthermore, a pair of the limiting devices are provided, and the pair of limiting devices are respectively provided at two ends of the connecting plate.

[0013] Furthermore, the ink scraping device further includes a second driving rod disposed between the first driving rod and the driving device, and a spring disposed between the first driving rod and the second driving rod; the second driving rod is connected to the driving device.

[0014] Furthermore, the driving device comprises an electric telescopic cylinder arranged vertically downward, and the electric telescopic cylinder is connected to the fixing seat via a bracket; the telescopic rod of the electric telescopic cylinder is fixedly connected to the second driving rod.

[0015] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects: the ink scraper assembly of the bottle screen printing machine of the utility model is placed above the printing plate when in use, and the printing plate is driven to reciprocate by an external power device, the bottle is placed on the lower side of the printing plate and close to the printing plate (directly below the scraper), the power device is used to drive the bottle to rotate while the scraper is against the printing plate, the printing plate moves, and printing is completed. During the printing process, the scraper will only print when it moves to one side. Therefore, a pair of printing devices are set up so that during printing, one of the printing plates is pressed against the printing plate by the driving device for printing, and the other printing plate is in a high position under the driving device. When it moves to the end of the printing plate, the printing is completed. At this time, the printing plate in the high position drops but does not stick to the printing plate (there is a certain gap between the two), and the printing plate in the low position rises and is in a high position. Then the printing plate moves in the opposite direction. During the movement, the printing plate in the low position rubs the oil on the printing plate evenly on the printing plate. When it moves to the other end of the printing plate, the printing operation of the new bottle body can be started. In this way, not only can printing be carried out efficiently, but also the two scraping devices are symmetrically arranged, and both have the function of scraping ink, so ink can be scraped in two directions. When multiple colors need to be printed, the production line can run in reverse to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic structural diagram of an ink scraper assembly of a bottle screen printer provided by an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the internal structure of the ink scraper assembly of the bottle screen printing machine provided by the embodiment of the utility model;

[0019] Figure 3 A schematic structural diagram of the ink scraping device provided in an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the structure of the oil suction device provided in the embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the structure of the oil replenishing device provided in an embodiment of the utility model;

[0022] Figure 6A schematic structural diagram of the scraper portion provided in an embodiment of the utility model.

[0023] Icons: 11-fixed seat, 21-scraper, 22-connecting plate, 23-first driving rod, 24-spring, 25-second driving rod, 26-pressure plate, 27-electric telescopic cylinder, 28-bracket, 29-limiting plate, 210-limiting hole, 211-fastening bolt, 212-threaded hole, 213-hinge shaft, 31-oil suction box, 32-oil suction hole, 33-oil suction pipe, 34-connecting rod, 35-oil supply box, 36-oil supply pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example

[0030] The following is further described in conjunction with specific embodiments. Figure 1 -Attached Figure 6 As shown, the ink scraping assembly of the bottle screen printer of this embodiment includes a fixed seat 11, and a pair of ink scraping devices connected to the fixed seat 11; the ink scraping device includes a scraper 21 arranged below the fixed seat 11, a first driving rod 23 connected to the scraper 21 and vertically arranged, and a driving device connected to the first driving rod 23; the driving device is used to drive the first driving rod 23 to move in the vertical direction, and the first driving rod 23 is slidably connected to the fixed seat 11; a pair of ink scraping devices are respectively arranged on opposite sides of the fixed seat 11. Specifically, when in use, the device is placed above the printing plate, and the printing plate is driven to reciprocate by an external power device, the bottle is placed under the printing plate and close to the printing plate (directly below the scraper 21), the power device is used to drive the bottle to rotate while the scraper 21 is against the printing plate, the printing plate moves, and printing is completed. During the printing process, the scraper 21 will only print when it moves to one side. Therefore, a pair of printing devices are set up so that during printing, one of the printing plates is pressed against the printing plate by the driving device for printing, and the other printing plate is in a high position under the driving device. When it moves to the end of the printing plate, the printing is completed. At this time, the printing plate in the high position drops but does not stick to the printing plate (there is a certain gap between the two), and the printing plate in the low position rises and is in a high position. Then the printing plate moves in the opposite direction. During the movement, the printing plate in the low position rubs the oil on the printing plate evenly on the printing plate. When it moves to the other end of the printing plate, the printing operation of the new bottle body can be started. In this way, not only can printing be carried out efficiently, but also the two scraping devices are symmetrically arranged, and both have the function of scraping ink, so ink can be scraped in two directions. When multiple colors need to be printed, the production line can run in reverse to improve production efficiency.

[0031] In this embodiment, an ink circulation device is also included between a pair of scrapers 21; the ink circulation device includes an oil suction device disposed between the pair of scrapers 21 and close to the end of the scraper 21, and an oil replenishing device disposed at the upper end between the pair of scrapers 21. The oil suction device includes an oil suction box 31, an oil suction hole 32 opened on the side of the pair of oil suction boxes 31 close to each other, an oil suction pipe 33 connected to the inside of the oil suction box 31, a negative pressure machine connected to the oil suction pipe 33, and a connecting rod 34 for connecting the oil suction box 31 and the fixed seat 11; the oil replenishing device includes an oil replenishing box 35 disposed on the lower side of the fixed seat 11, an oil replenishing hole opened on the lower side of the oil replenishing box 35, an oil replenishing pipe 36 connected to the inside of the oil replenishing box 35, and a pump body connected to the oil replenishing pipe 36. The outer wall of the oil suction box 31 is provided with a rubber layer. Specifically, during the scraping process, as the scraper 21 moves back and forth multiple times, the ink will gradually be pushed to the two sides of the printing plate. At this time, the ink is more concentrated at the two ends of the scraper 21, while the amount of ink in the middle is reduced. With multiple scrapings, air will be repeatedly mixed into the ink, causing the ink to slowly deteriorate. Therefore, at this time, the oil suction boxes 31 at both ends of the scraper 21 can be used in conjunction with the oil suction pipe 33 and the negative pressure machine to slowly absorb the ink flowing to the end of the scraper 21, and then the new ink is pumped into the space between the pair of scrapers 21 through the pump body, the oil replenishing pipe 36, the oil replenishing box 35 and the oil replenishing hole, so that the ink in the scraping process can always maintain a high-quality state, thereby improving printing efficiency.

[0032] In this embodiment, a connecting plate 22 is further provided between the scraper 21 and the first driving rod 23. The scraper 21 and the connecting plate 22 are hinged through a hinge shaft 213, and the connecting plate 22 is fixedly connected to the first driving rod 23. A limiting device is provided between the scraper 21 and the connecting plate 22. The limiting device includes a limiting plate 29 connected to the end of the connecting plate 22, an arc-shaped limiting hole 210 provided on the limiting plate 29, a threaded hole 212 provided on the end of the scraper 21, and a fastening bolt 211; the fastening bolt 211 passes through the limiting hole 210 and is threadedly connected with the threaded hole 212; the limiting hole 210 takes the axis of the hinge shaft 213 as the center of the circle. A pair of limiting devices are provided, and the pair of limiting devices are respectively provided at both ends of the connecting plate 22. Specifically, the limiting device is mainly used to adjust the angle of the scraper 21 to adapt to different printing process requirements, by loosening the fastening bolt 211, and then rotating the scraper 21 to a certain angle, and then tightening the fastening bolt 211.

[0033] The ink scraping device in this embodiment further includes a second driving rod 25 disposed between the first driving rod 23 and the driving device, and a spring 24 disposed between the first driving rod 23 and the second driving rod 25; the second driving rod 25 is connected to the driving device. Specifically, by arranging the spring 24 between the first driving rod 23 and the second driving rod 25, the impact of the scraper 21 on the printing plate can be better buffered, thereby preventing the printing plate from being damaged by the scraper 21.

[0034] The driving device in this embodiment includes an electric telescopic cylinder 27 arranged vertically downward, and the electric telescopic cylinder 27 is connected to the fixing seat 11 via a bracket 28; the telescopic rod of the electric telescopic cylinder 27 is fixedly connected to the second driving rod 25 via a pressing plate 26.

[0035] In summary, the ink scraper assembly of the bottle screen printer of this embodiment is placed above the printing plate when in use, and the printing plate is driven to reciprocate by an external power device, the bottle is placed on the lower side of the printing plate and close to the printing plate (directly below the scraper 21), the power device is used to drive the bottle to rotate while the scraper 21 is against the printing plate, the printing plate moves, and printing is completed. During the printing process, the scraper 21 will only print when it moves to one side. Therefore, a pair of printing devices are set up so that during printing, one of the printing plates is pressed against the printing plate by the driving device for printing, and the other printing plate is in a high position under the driving device. When it moves to the end of the printing plate, the printing is completed. At this time, the printing plate in the high position drops but does not stick to the printing plate (there is a certain gap between the two), and the printing plate in the low position rises and is in a high position. Then the printing plate moves in the opposite direction. During the movement, the printing plate in the low position rubs the oil on the printing plate evenly on the printing plate. When it moves to the other end of the printing plate, the printing operation of the new bottle body can be started. In this way, not only can printing be carried out efficiently, but also the two scraping devices are symmetrically arranged, and both have the function of scraping ink, so ink can be scraped in two directions. When multiple colors need to be printed, the production line can run in reverse to improve production efficiency.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ink scraper assembly for a bottle screen printer, characterized in that: It comprises a fixed seat (11) and a pair of ink scraping devices connected to the fixed seat (11); The ink scraping device comprises a scraper (21) arranged below the fixed seat (11), a first driving rod (23) connected to the scraper (21) and arranged vertically, and a driving device connected to the first driving rod (23); the driving device is used to drive the first driving rod (23) to move in a vertical direction, and the first driving rod (23) is slidably connected to the fixed seat (11); A pair of ink scraping devices are respectively arranged on two opposite sides of the fixing seat (11).

2. The ink scraping assembly of the bottle screen printing machine according to claim 1 is characterized in that: It also includes an ink circulation device disposed between the pair of scrapers (21); The ink circulation device comprises an oil suction device arranged between a pair of scrapers (21) and close to the ends of the scrapers (21), and an oil replenishing device arranged at the upper ends between the pair of scrapers (21).

3. The ink scraping assembly of the bottle screen printing machine according to claim 2 is characterized in that: The oil suction device comprises an oil suction box (31), an oil suction hole (32) provided on a side of a pair of the oil suction boxes (31) close to each other, an oil suction pipe (33) communicating with the inside of the oil suction box (31), a negative pressure machine connected to the oil suction pipe (33), and a connecting rod (34) used to connect the oil suction box (31) and the fixing seat (11); The oil replenishing device comprises an oil replenishing box (35) arranged on the lower side of the fixing seat (11), an oil replenishing hole opened on the lower side of the oil replenishing box (35), an oil replenishing pipe (36) connected to the inside of the oil replenishing box (35), and a pump body connected to the oil replenishing pipe (36).

4. The ink scraping assembly of the bottle screen printing machine according to claim 3 is characterized in that: The outer wall of the oil suction box (31) is provided with a rubber layer.

5. The ink scraping assembly of the bottle screen printing machine according to claim 1 is characterized in that: A connecting plate (22) is further provided between the scraper (21) and the first driving rod (23); the scraper (21) and the connecting plate (22) are hingedly connected via a hinge shaft (213); and the connecting plate (22) is fixedly connected to the first driving rod (23); A limiting device is provided between the scraper (21) and the connecting plate (22).

6. The ink scraping assembly of the bottle screen printing machine according to claim 5, characterized in that: The limiting device comprises a limiting plate (29) connected to the end of the connecting plate (22), an arc-shaped limiting hole (210) provided in the limiting plate (29), a threaded hole (212) provided in the end of the scraper (21), and a fastening bolt (211); the fastening bolt (211) passes through the limiting hole (210) and is threadedly connected to the threaded hole (212); the limiting hole (210) takes the axis of the hinge shaft (213) as its center.

7. The ink scraping assembly of the bottle screen printing machine according to claim 6, characterized in that: A pair of the limiting devices are provided, and the pair of limiting devices are respectively arranged at two ends of the connecting plate (22).

8. The ink scraping assembly of the bottle screen printing machine according to claim 1, characterized in that: The ink scraping device further comprises a second driving rod (25) arranged between the first driving rod (23) and the driving device, and a spring (24) arranged between the first driving rod (23) and the second driving rod (25); the second driving rod (25) is connected to the driving device.

9. The ink scraping assembly of the bottle screen printing machine according to claim 8, characterized in that: The driving device comprises an electric telescopic cylinder (27) arranged vertically downward, wherein the electric telescopic cylinder (27) is connected to the fixing seat (11) via a bracket (28); and the telescopic rod of the electric telescopic cylinder (27) is fixedly connected to the second driving rod (25).

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