Label printing machine roller cleaning device

Abstract

The utility model provides a roller cleaning device of a label printing machine, and belongs to the technical field of label printing, the device comprises a base, a roller cleaning device and a roller cleaning device, the cleaning mechanism comprises a scraping plate and a cleaning gun which are erected above the base, the plate shape of the scraping plate is arc-shaped, the bottom surface of the scraping plate is an arc surface matched with the surface of the roller, the two ends of the scraping plate are staggered by a preset distance in the axis direction of the roller, the cleaning gun is arranged towards the inner side of the scraping plate, and the cleaning gun and the scraping plate are synchronously and movably arranged along the axis of the roller; the driving part is arranged on the base and used for driving the roller to rotate around the axis of the roller and driving the scraping plate and the cleaning gun to move, and the outer wall of the roller is matched with the plate shape of the scraping plate. The cleaning device is good in scraping effect and long in service life.

Description

Technical Field

[0001] This application belongs to the field of label printing technology, and in particular relates to a label printing machine roller cleaning device. Background Technology

[0002] After a period of use, a significant amount of printing ink will adhere to the surface of the printing rollers of a label printing machine. As the amount of ink adheres, it will condense into ink clumps, requiring a cleaning device to remove these clumps from the rollers. Typical cleaning devices use a straight scraper of a length adapted to the roller, which works in conjunction with the roller's rotation to remove the ink clumps. However, ink clumps are usually hard and firmly attached, and scraping them may damage the scraper, resulting in poor removal and accelerated wear on the scraper, thus reducing the lifespan of the cleaning device. Utility Model Content

[0003] To address the shortcomings of the prior art, this application provides a label printing machine roller cleaning device, which has a better scraping effect and a longer service life.

[0004] To achieve the above objectives, the present invention employs the following technology:

[0005] A label printing machine roller cleaning device, comprising:

[0006] The base has a support frame on it to support the roller;

[0007] The cleaning mechanism includes a scraper and a cleaning gun mounted on a base. The scraper is arc-shaped, and the bottom surface of the scraper is an arc surface that matches the surface of the roller. The two ends of the scraper are offset by a predetermined distance along the axis of the roller. The cleaning gun is positioned towards the inside of the scraper. The cleaning gun and the scraper are moved synchronously along the axis of the roller.

[0008] The drive unit, located on the base, is used to drive the roller to rotate around its own axis and to drive the scraper and cleaning gun to move. The outer wall of the roller is adapted to the shape of the scraper.

[0009] Furthermore, the base is provided with a pair of support seats, and a guide rod is provided between the two support seats in the direction of the long side of the base. A mounting seat is slidably passed through the guide rod, and the scraper and cleaning gun are provided on the mounting seat. The drive unit is used to drive the mounting seat to move.

[0010] Furthermore, there is a pair of support frames located between two support bases, used to support the roller along the length of the base. The support frame includes a column perpendicular to the base, and an arc-shaped plate adapted to the end of the roller is provided at the upper end of the column; the guide rod is located directly above the support frame, and the scraper is vertically arranged.

[0011] Furthermore, the drive unit includes a first motor, the drive end of which passes through the support base and is connected to a connecting sleeve for connecting the end of the roller.

[0012] Furthermore, the drive unit includes a second motor, the drive end of which is coaxially connected to a lead screw. The lead screw passes through the support base and the mounting base, and the lead screw and the mounting base are threaded together.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Through the structural design of the scraper and the rotation of the roller, the scraper is subjected to more uniform force when the inner side of one end contacts the ink block, thereby reducing the deformation and wear of the scraper. At the same time, since the force between the scraper and the ink block gradually increases, the interaction between the scraper and the ink block can greatly reduce the possibility of the scraper breaking due to sudden excessive force, further reducing the wear of the scraper and effectively improving the service life of the cleaning device.

[0015] 2. With the cooperation of the scraper and the cleaning gun, the cleaning device not only has a good cleaning effect, but also effectively prevents ink blocks from flying and falling, thus ensuring the cleanliness of the cleaning device to a large extent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the cleaning device according to an embodiment of this application.

[0017] Figure 2 yes Figure 1 A magnified view of part A in the middle.

[0018] Figure 3 This is a cross-sectional view of the cleaning device according to an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the connecting sleeve in an embodiment of this application.

[0020] Reference numerals: 1-base, 11-support frame, 111-column, 112-arc plate, 12-support seat, 121-guide rod, 122-mounting seat, 2-roller, 21-connecting shaft, 3-cleaning device, 31-scraper, 32-cleaning gun, 4-drive unit, 41-first motor, 411-connecting sleeve, 412-rubber sleeve, 42-second motor, 421-lead screw. Detailed Implementation

[0021] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0022] This application provides a label printing machine roller cleaning device, such as... Figures 1-3 As shown, it includes: base 1, cleaning device 3, and drive unit 4.

[0023] like Figure 1 As shown, the roller 2 of the label printing machine is cylindrical, with connecting shafts 21 coaxially mounted at both ends for connecting to the roller mounting base on the label printing machine. A support frame 11 is provided on the base 1 to support the connecting shafts 21 at both ends of the roller 2. Figures 1-3 As shown, the cleaning mechanism 3 includes a scraper 31 and a cleaning gun 32 mounted on the base 1. The scraper 31 and the cleaning gun 32 are synchronously moved along the axis of the roller 2. The scraper 31 is arc-shaped, and its bottom surface is an arc surface adapted to the surface of the roller 2. That is, the projection outline of the bottom of the scraper 31 along the axis of the roller 2 coincides with the projection outline of the roller 2 along its own axis. When the scraper 31 moves along the axis of the roller 2, the bottom surface of the scraper 31 can adhere to the surface of the roller 2. At the same time, the two ends of the scraper 31 are staggered by a predetermined distance along the axis of the roller 2. That is, when the scraper 31 moves along the axis of the roller 2, the inner side of the end of the scraper 31 closer to the roller 2 acts on the surface of the roller 2 first. The driving unit 4 is mounted on the base 1 and is used to drive the roller 2 to rotate around its own axis and to drive the scraper 31 and the cleaning gun 32 to move along the axis of the roller. The roller 2 should rotate toward the inner side of the end of the scraper 31 closer to the roller 2.

[0024] In application, the connecting shafts 21 at both ends of the roller 2 are mounted on the support frame 11. The drive unit 4 drives the roller 2 to rotate around its own axis and toward the side of the scraper 31 closer to the roller 2. The drive unit 4 simultaneously drives the scraper 31 and the cleaning gun 32 to move along the axis of the roller 2. The end of the scraper 31 closer to the roller 2 begins to adhere to the surface of the roller 2. Since the roller 2 rotates toward the inner side of the scraper 31 closer to the roller 2, the inner side of the scraper 31 closer to the roller 2 will scrape off the ink blocks on the surface of the roller 2. Furthermore, since the scraper 31 is arc-shaped, when the inner side of one end of the scraper 31 contacts the ink block, it is equivalent to an inward concavity. The curved surface of the scraper 31 contacts the ink block, and the force exerted by the ink block on the inner side of one end of the scraper 31 can be decomposed on both sides of the point of action between the ink block and the inner side of one end of the scraper 31. Compared with a straight shape, the curved scraper 31 is subjected to more uniform force, thereby reducing the deformation and wear of the scraper 31. At the same time, since the concave curved surface contacts the ink block through the rotation of the roller 2, the force between the scraper 31 and the ink block gradually increases. Compared with a straight shape, the interaction between the curved scraper 31 and the ink block can greatly reduce the possibility of the scraper 31 breaking due to sudden excessive force, further reducing the wear of the scraper 31 and effectively improving the service life of the cleaning device.

[0025] After scraping a section of ink on the roller 2, the scraper 31 continues to move along the axis of the roller 2 to scrape the next section until the entire surface of the roller 2 is clean. Since the inner side of the scraper 31 closer to the roller 2 has already scraped off a section of ink, and the two ends of the scraper 31 are offset by a predetermined distance along the axis of the roller 2, after moving to the next section, one end of the scraper 31 will continue to scrape the next section, and the other end of the scraper 31 will adhere to the surface of the roller 2 where the previous section has been scraped. At the same time, the ink scraped off by the inner side of one end of the scraper 31 will be blocked by the other end of the scraper 31, and the broken ink will also be blocked by the other end of the scraper 31. Simultaneously, the cleaning gun 32 sprays cleaning fluid toward the inner side of the scraper 31 to rinse the scraped ink. This makes the cleaning device not only have a good cleaning effect, but also effectively prevent ink from flying and breaking, thus ensuring the cleanliness of the cleaning device to a large extent.

[0026] Specifically, such as Figure 1 As shown, a pair of support seats 12 and a second motor 42 are provided on the base 1. A guide rod 121 is provided between the two support seats 12 and is arranged in the direction of the long side of the base 1. A mounting seat 122 is slidably passed through the guide rod 121. The scraper 31 and the cleaning gun 32 are provided on the mounting seat 122. The drive end of the second motor 42 is coaxially connected to a lead screw 421. The lead screw 421 is set through one support seat 12 and the mounting seat 122. The other end of the lead screw 421 is rotatably engaged with another support seat 12. The lead screw 421 and the mounting seat 122 are threadedly engaged. The mounting base 122 moves by means of the threaded engagement between the lead screw 421 and the mounting base 122, the guidance of the guide rod 121, and the rotation of the second motor 42. The guide rod 121 slides with the mounting base 122, resulting in a low coefficient of friction, which allows for more precise positioning of the scraper 31. At the same time, the threaded engagement between the lead screw 421 and the mounting base 122 allows the scraper 31 to withstand multi-directional loads, making it suitable for scraping irregular ink blocks and improving the scraping effect.

[0027] Specifically, such as Figures 1-3 As shown, there is a pair of support frames 11 located between two support bases 12, used to support the roller 2 along the length of the base 1. The support frame 11 includes a column 111 perpendicular to the base 1, and an arc-shaped plate 112 adapted to the end of the roller 2 is provided at the upper end of the column 111; the guide rod 121 is located directly above the support frame 11, and the scraper 31 is vertically arranged; as shown Figures 1-4As shown, a first motor 41 is also provided on the base 1. Its drive end passes through the support base 12 and is connected to a connecting sleeve 411. A rubber sleeve 412 is fixedly installed in the cavity of the connecting sleeve 411. The inner cavity of the rubber sleeve 412 is adapted to the connecting shaft 21 at the end of the roller 2. When installing the roller 2, the connecting shaft 21 at one end of the roller 2 can be pressed into the inner cavity of the rubber sleeve 412. The power of the drive end of the first motor 41 is transmitted through the friction between the rubber sleeve 412 and the connecting shaft 21 to realize the rotation of the roller 2, which simplifies the installation process of the roller 2.

[0028] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A label printer roller cleaning device, characterized in that, The utility model relates to a cleaning device for roll cylinder, including: A base (1) is provided with a support frame (11) for supporting a roll cylinder (2); A cleaning mechanism (3) includes a scraper (31) and a cleaning gun (32) arranged above the base (1), the scraper (31) is arranged in an arc shape, the bottom surface of the scraper (31) is an arc surface matched with the surface of the roll cylinder (2), the two ends of the scraper (31) are arranged at a predetermined distance apart along the axis direction of the roll cylinder (2), the cleaning gun (32) is arranged towards the inside of the scraper (31), and the cleaning gun (32) and the scraper (31) are synchronously arranged to move along the axis of the roll cylinder (2); A driving part (4) is arranged on the base (1) for driving the roll cylinder (2) to rotate around its axis and for driving the scraper (31) and the cleaning gun (32) to move, and the outer wall of the roll cylinder (2) is matched with the shape of the scraper (31).

2. A label printer roller cleaning device according to claim 1, characterised in that, A pair of support seats (12) are arranged on the base (1), a guide rod (121) is arranged between the two support seats (12) and faces the long side direction of the base (1), an installation seat (122) is slidably arranged on the guide rod (121), the scraper (31) and the cleaning gun (32) are arranged on the installation seat (122), and the driving part (4) is used for driving the installation seat (122) to move.

3. A label printer roller cleaning device according to claim 2, characterised in that, The support frame (11) is arranged between the two support seats (12) and is used for supporting the roll cylinder (2) along the length direction of the base (1), the support frame (11) includes a vertical column (111) arranged perpendicularly to the base (1), and an arc-shaped plate (112) matched with the end of the roll cylinder (2) is arranged on the upper end of the vertical column (111); the guide rod (121) is arranged directly above the support frame (11), and the scraper (31) is arranged vertically.

4. A label printer roller cleaning device according to claim 3, wherein, The driving part (4) includes a first motor (41), the driving end of the first motor (41) penetrates through the support seat (12) and is connected with a connecting sleeve (411) used for connecting the end of the roll cylinder (2).

5. A label printer roller cleaning device as claimed in claim 4, wherein, A rubber sleeve (412) is arranged in the cavity of the connecting sleeve (411), and the inner cavity of the rubber sleeve (412) is matched with the end of the roll cylinder (2).

6. A label printer roller cleaning device as claimed in claim 2, wherein, The driving part (4) includes a second motor (42), the driving end of the second motor (42) is coaxially connected with a lead screw (421), the lead screw (421) penetrates through the support seat (12) and the installation seat (122), and the lead screw (421) is threadedly connected with the installation seat (122).

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