Offset printing mechanism of label printing machine

Abstract

The utility model relates to the technical field of offset printing, in particular to an offset printing mechanism of a label printing machine, which comprises a working table, a control table, a printing machine body, an impression cylinder, a cleaning mechanism and an ink roller, the control table is fixedly arranged on the working table, the printing machine body is fixedly arranged on the working table, and a printing opening is formed in the printing machine body. A printing opening is formed in the printing machine body, the impression cylinder is rotationally arranged in the printing opening, the cleaning mechanism is arranged in the printing machine body and used for cleaning the impression cylinder, and the ink roller is rotationally arranged in the printing machine body and located on one side of the impression cylinder. Therefore, the problem that the cleaning efficiency of the printing cylinder is low in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of offset printing, in particular to an offset printing mechanism of a label printing machine. Background Art

[0002] An offset printing press is a type of lithographic printing press. When the offset printing press is working, the printed image is first printed from the printing plate onto the rubber cylinder, and then the rubber cylinder rotates to print the ink evenly onto the paper. Existing offset printing presses are mainly used for printing commercial prints, packaging prints and label printing. Offset printing presses are the mainstream of modern paper printing.

[0003] For example, the invention patent with publication number CN107639923A discloses a printing mechanism of an offset printing press, including a plate cylinder, a transfer cylinder and an impression cylinder, the plate cylinder is sleeved on a plate shaft, the transfer cylinder is sleeved on a transfer shaft, the impression cylinder rotates on a frame, the plate cylinder and the transfer cylinder are kept in pressure contact and rolling, the plate shaft is rotated on the frame, the transfer shaft is rotated around its axis, the position of the axis of the transfer shaft is adjusted on the running track of the transfer shaft, when selecting transfer cylinders with different outer diameters, the position of the axis of the transfer shaft on the running track of the transfer shaft is adjusted, so that the transfer cylinders with different outer diameters are kept in pressure contact and rolling with the impression cylinder; the printing mechanism of the offset printing press can replace plate cylinders and transfer cylinders with different outer diameters to realize printing of different printing pattern lengths, and ensure that the printing pattern on the roll paper is continuous between units, the roll paper utilization rate is improved and the roll paper does not need to be retracted, the printing speed and efficiency are effectively improved, the paper feeding is not affected, the paper tension is stable, and the printing accuracy is improved.

[0004] However, after long-term use, the surface of the impression cylinder of the offset printing machine in the prior art will absorb dirt such as ink and water, which greatly reduces the printing quality. However, the device needs to manually clean the ink dirt on the surface of the impression cylinder, which is very inconvenient. Utility Model Content

[0005] The utility model provides an offset printing mechanism of a label printing machine, which solves the problem of low cleaning efficiency of a printing roller in the related art.

[0006] The technical solution of the utility model is as follows: an offset printing mechanism of a label printing machine, comprising a workbench, a control console, a printing machine body, an impression cylinder, a cleaning mechanism and an ink roller;

[0007] The console is fixedly arranged on the workbench;

[0008] The printer body is fixedly arranged on the workbench, and a printing port is provided on the printer body;

[0009] The impression roller is rotatably disposed in the printing port;

[0010] The cleaning mechanism is arranged in the printing machine body and is used for cleaning the impression cylinder;

[0011] The ink roller is rotatably arranged in the printing machine body, and the ink roller is located at one side of the impression cylinder.

[0012] Preferably, the cleaning mechanism comprises:

[0013] A cleaning groove, the cleaning groove being opened on the inner bottom wall of the printing port corresponding to the impression roller;

[0014] A support frame, wherein the support frame is slidably disposed in the cleaning tank;

[0015] Support grooves, wherein two support grooves are provided, and the two support grooves are opened on the support frame;

[0016] A scraper, the scraper being slidably disposed in the supporting groove;

[0017] Support springs, a plurality of support springs are fixedly arranged between each scraper and the bottom of the support groove;

[0018] An electric push rod, wherein the electric push rod is provided in plurality, and the plurality of electric push rods are fixedly arranged between the scraper and the bottom of the cleaning tank;

[0019] A cleaning mechanism is arranged in the supporting frame and is used for cleaning the side wall of the impression roller.

[0020] Furthermore, the cleaning mechanism comprises:

[0021] A cleaning roller, the cleaning roller being rotatably disposed in the supporting frame;

[0022] first cleaning bristles, wherein the first cleaning bristles are evenly distributed on the side wall of the cleaning roller;

[0023] A first motor, wherein the first motor is fixedly disposed in the supporting frame, and an output end of the first motor is fixedly connected to the cleaning roller;

[0024] a first cavity, the first cavity being opened in the cleaning roller;

[0025] A flushing hole, wherein the flushing hole is provided in plurality and the plurality of flushing holes are opened on the side wall of the first cavity;

[0026] A water tank, wherein the water tank is fixedly arranged at the bottom of the cleaning tank corresponding to the supporting frame;

[0027] A water pump is fixedly arranged on the printer body, an input end of the water pump is communicated with the water tank, and an output end of the water pump is communicated with the first cavity.

[0028] Furthermore, it also includes a filter cartridge, which is rotatably arranged in the water tank, and the input end of the water pump extends into the filter cartridge.

[0029] Furthermore, it also includes a cleaning plate, which is fixedly arranged at the bottom of the water tank, and second cleaning bristles are evenly distributed on the cleaning plate, and the second cleaning bristles are in contact with the filter cartridge. A second motor is arranged on the side wall of the water tank, and the output end of the second motor is fixedly connected to the filter cartridge.

[0030] On the basis of the above scheme, a reeling mechanism is further included for reeling the printed labels, and the reeling mechanism includes:

[0031] A support block, wherein two support blocks are provided, and the two support blocks are fixedly arranged on the printing machine body;

[0032] A winding roller, the winding roller is rotatably arranged between the support blocks;

[0033] A second motor, wherein the second motor is fixedly disposed in the support block, and an output end of the second motor is fixedly connected to the winding roller.

[0034] The working principle and beneficial effects of the utility model are:

[0035] 1. In the utility model, by setting the cleaning mechanism, during the rotation of the printing cylinder, the support frame can be pushed to move by the work of the electric push rod, so that the scraper is pressed on the side wall of the printing cylinder under the action of the support spring, so that the impurities attached to the surface of the printing cylinder can be scraped off by the scraper;

[0036] 2. In the utility model, by setting the cleaning mechanism, while the scraper is in contact with the printing cylinder, the first cleaning brush is in contact with the printing cylinder liquid. While the scraper is cleaning the printing cylinder, the first motor can drive the cleaning roller to rotate, and the water in the water tank can be sprayed out through the flushing hole by the water pump, so that the first cleaning brush can be used to clean the printing cylinder. At the same time, the water attached to the surface of the printing cylinder can be scraped off by the scraper;

[0037] 3. In the utility model, by providing the cleaning plate and the second cleaning bristles, the filter cartridge is easily controlled to rotate by the operation of the second motor, and the filter cartridge is cleaned by the second cleaning bristles, thereby improving the filtering effect of the filter cartridge, and further realizing the recycling of water in the water tank;

[0038] 4. In the utility model, by arranging a workbench, a control console, a printing machine body, an impression roller, a cleaning mechanism and an ink roller, it is convenient to clean the printing roller by a scraper and a first cleaning brush, thereby solving the problem of low cleaning efficiency of the printing roller in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] Figure 1 It is a schematic diagram of the structure of the utility model;

[0041] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0042] Figure 3 This is a schematic diagram of the cleaning mechanism structure of the utility model;

[0043] Figure 4 This is a schematic cross-sectional view of the cleaning mechanism of the utility model.

[0044] In the figure: 1. workbench; 2. control console; 3. printing machine body; 4. impression roller; 5. ink roller; 6. support frame; 7. scraper; 8. electric push rod; 9. cleaning roller; 10. water tank; 11. water pump; 12. filter cartridge; 13. cleaning plate; 14. support block; 15. winding roller. DETAILED DESCRIPTION

[0045] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] like Figure 1~Figure 4 As shown, this embodiment proposes an offset printing mechanism of a label printing machine, including a workbench 1, a control console 2, a printing machine body 3, a stamping roller 4, a cleaning mechanism and an ink roller 5. The control console 2 is fixedly arranged on the workbench 1, the printing machine body 3 is fixedly arranged on the workbench 1, a printing port is opened on the printing machine body 3, the stamping roller 4 is rotatably arranged in the printing port, the cleaning mechanism is arranged in the printing machine body 3 for cleaning the stamping roller 4, and the ink roller 5 is rotatably arranged in the printing machine body 3, and the ink roller 5 is located on one side of the stamping roller 4.

[0047] Among them, the cleaning mechanism includes a cleaning groove, a support frame 6, a support groove, a scraper 7, a support spring, an electric push rod 8 and a cleaning mechanism. The cleaning groove is opened on the inner bottom wall of the printing port corresponding to the impression roller 4. The support frame 6 is slidably set in the cleaning groove. The support groove is set to two, and the two support grooves are opened on the support frame 6. The scraper 7 is slidably set in the support groove. A plurality of support springs are fixedly set between each scraper 7 and the bottom of the support groove. The electric push rod 8 is set to multiple, and multiple electric push rods 8 are fixedly set between the scraper 7 and the bottom of the cleaning groove. The cleaning mechanism is set in the support frame 6 for cleaning the side wall of the impression roller 4.

[0048] Specifically, during the rotation of the printing cylinder, the electric push rod 8 can push the support frame 6 to move, so that the scraper 7 is pressed against the side wall of the printing cylinder under the action of the support spring, thereby facilitating the scraper 7 to scrape away impurities attached to the surface of the printing cylinder.

[0049] Among them, the cleaning mechanism includes a cleaning roller 9, a first cleaning brush, a first motor, a first cavity, a flushing hole, a water tank 10 and a water pump 11. The cleaning roller 9 is rotatably arranged in the support frame 6, the first cleaning bristles are evenly distributed on the side wall of the cleaning roller 9, the first motor is fixedly arranged in the support frame 6, the output end of the first motor is fixedly connected to the cleaning roller 9, the first cavity is opened in the cleaning roller 9, the flushing hole is set to be multiple, and multiple flushing holes are opened on the side wall of the first cavity. The water tank 10 is fixedly arranged at the bottom of the cleaning tank corresponding to the support frame 6, the water pump 11 is fixedly arranged on the printing machine body 3, the input end of the water pump 11 is connected to the water tank 10, and the output end of the water pump 11 is connected to the first cavity.

[0050] Specifically, while the scraper 7 is in contact with the printing roller, the first cleaning brush bristles are in contact with the printing roller liquid. While the scraper 7 is cleaning the printing roller, the cleaning roller 9 can be driven to rotate by the operation of the first motor. At the same time, the water in the water tank 10 can be sprayed out through the flushing hole by the operation of the water pump 11, so as to facilitate the cleaning of the printing roller in cooperation with the first cleaning brush bristles. At the same time, the water attached to the surface of the printing roller can be scraped off by the action of the scraper 7.

[0051] It also includes a filter cartridge 12, which is rotatably arranged in the water tank 10, the input end of the water pump 11 extends into the filter cartridge 12, the cleaning plate 13 is fixedly arranged at the bottom of the water tank 10, and the cleaning plate 13 is evenly distributed with second cleaning bristles, the second cleaning bristles are in contact with the filter cartridge 12, and a second motor is arranged on the side wall of the water tank 10, and the output end of the second motor is fixedly connected to the filter cartridge 12.

[0052] Specifically, the filter cartridge 12 is rotated by controlling the operation of the second motor, and the filter cartridge 12 is cleaned by the second cleaning brush, thereby improving the filtering effect of the filter cartridge 12 and further realizing the recycling of water in the water tank 10 .

[0053] It also includes a winding mechanism for winding the printed labels, the winding mechanism includes a support block 14, a winding roller 15 and a second motor, two support blocks 14 are provided, the two support blocks 14 are fixedly arranged on the printing machine body 3, the winding roller 15 is rotatably arranged between the support blocks 14, the second motor is fixedly arranged in the support block 14, and the output end of the second motor is fixedly connected to the winding roller 15.

[0054] Specifically, the printed label is wound around the winding roller 15 , and the second motor is controlled to work, so that the label paper can be rolled up by the rotation of the winding roller 15 .

[0055] In this embodiment, during use, during the rotation of the printing roller, the support frame 6 can be pushed to move by the operation of the electric push rod 8, so that the scraper 7 is pressed on the side wall of the printing roller under the action of the support spring, so that the impurities attached to the surface of the printing roller can be scraped off by the scraper 7. When the scraper 7 contacts the printing roller, the first cleaning brush contacts the printing roller liquid. When the scraper 7 cleans the printing roller, the cleaning roller 9 can be driven to rotate by the operation of the first motor, and the water in the water tank 10 can be sprayed out through the flushing hole by the operation of the water pump 11, so as to facilitate the cleaning of the printing roller with the first cleaning brush. At the same time, the water attached to the surface of the printing roller can be scraped off by the scraper 7, and the filter cartridge 12 is controlled to rotate by the operation of the second motor, and the filter cartridge 12 is cleaned by the second cleaning brush, so as to improve the filtering effect of the filter cartridge 12, thereby realizing the recycling of the water in the water tank 10.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An offset printing mechanism for a label printing machine, characterized in that: include: Workbench (1); A control console (2), the control console (2) being fixedly arranged on the workbench (1); A printing machine body (3), the printing machine body (3) being fixedly arranged on the workbench (1), and the printing machine body (3) being provided with a printing port; An impression roller (4), the impression roller (4) being rotatably disposed in the printing port; A cleaning mechanism, the cleaning mechanism being arranged in the printing machine body (3) and being used for cleaning the impression roller (4); An ink roller (5), the ink roller (5) being rotatably arranged in the printing machine body (3), and the ink roller (5) being located on one side of the impression cylinder (4).

2. The offset printing mechanism of a label printing machine according to claim 1, characterized in that: The cleaning mechanism comprises: A cleaning groove, the cleaning groove corresponding to the impression roller (4) is opened on the inner bottom wall of the printing port; A support frame (6), the support frame (6) being slidably disposed in the cleaning tank; A support groove, wherein two support grooves are provided, and the two support grooves are opened on the support frame (6); A scraper (7), the scraper (7) being slidably disposed in the supporting groove; Support springs, a plurality of support springs being fixedly arranged between each scraper (7) and the bottom of the support groove; An electric push rod (8), wherein the electric push rod (8) is provided in plurality, and the plurality of electric push rods (8) are fixedly arranged between the scraper (7) and the bottom of the cleaning tank; A cleaning mechanism, the cleaning mechanism is arranged in the supporting frame (6) and is used to clean the side wall of the impression roller (4).

3. The offset printing mechanism of a label printing machine according to claim 2, characterized in that: The cleaning mechanism comprises: a cleaning roller (9), the cleaning roller (9) being rotatably arranged in the supporting frame (6); first cleaning bristles, the first cleaning bristles being evenly distributed on the side wall of the cleaning roller (9); A first motor, the first motor being fixedly arranged in the support frame (6), the output end of the first motor being fixedly connected to the cleaning roller (9); A first cavity, the first cavity being opened in the cleaning roller (9); A flushing hole, wherein the flushing hole is provided in plurality and the plurality of flushing holes are opened on the side wall of the first cavity; A water tank (10), the water tank (10) being fixedly arranged at the bottom of the cleaning tank corresponding to the support frame (6); A water pump (11), the water pump (11) being fixedly arranged on the printing machine body (3), the input end of the water pump (11) being in communication with the water tank (10), and the output end of the water pump (11) being in communication with the first cavity.

4. The offset printing mechanism of a label printing machine according to claim 3, characterized in that: It also includes a filter cartridge (12), the filter cartridge (12) being rotatably disposed in the water tank (10), and the input end of the water pump (11) extending into the filter cartridge (12).

5. The offset printing mechanism of a label printing machine according to claim 4, characterized in that: The invention also comprises a cleaning plate (13), the cleaning plate (13) being fixedly arranged at the bottom of the water tank (10), the cleaning plate (13) being evenly distributed with second cleaning bristles, the second cleaning bristles being in contact with the filter cartridge (12), a second motor being arranged on the side wall of the water tank (10), the output end of the second motor being fixedly connected to the filter cartridge (12).

6. The offset printing mechanism of a label printing machine according to claim 5, characterized in that: It also includes a reeling mechanism for reeling the printed labels, the reeling mechanism including: A support block (14), wherein two support blocks (14) are provided, and the two support blocks (14) are fixedly arranged on the printing machine body (3); A winding roller (15), the winding roller (15) being rotatably disposed between the support blocks (14); A second motor, wherein the second motor is fixedly arranged in the support block (14), and an output end of the second motor is fixedly connected to the winding roller (15).

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