Intaglio printing device

Abstract

The utility model relates to printing technical field especially, and it is a kind of intaglio printing device, including bottom plate, fixedly connected with fixed frame on the bottom plate, fixed frame is rotatably connected with pressing roller and intaglio printing roller through bearing, it is connected between pressing roller and intaglio printing roller through transmission mechanism, the surface fixedly connected with ink tank on the bottom plate, it is rotatably connected with transfer roller in ink tank through bearing, the both ends of ink tank are all abutted with sealing portion, gap is set up in the middle part position of two sealing portions, transfer roller is located in gap, and sealing portion is limited by limiting mechanism limit. The utility model is favorable to reduce the evaporation of ink, reduces the condition that the cost increase caused by ink waste.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and in particular to a gravure printing apparatus. Background Technology

[0002] Gravure printing equipment is a device that uses gravure cylinders for mechanical printing. During printing, ink is transferred from the transfer roller to the printing roller, and then printed by the printing roller. Since the ink is located in the ink tank, and the end of the ink tank is open, the ink is exposed to the air for a long time, which makes the ink prone to evaporation, resulting in ink waste and increased printing costs. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where ink is prone to evaporation, leading to ink waste and increased printing costs, by proposing a gravure printing device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A gravure printing apparatus is designed, comprising a base plate, a fixed frame fixedly connected to the base plate, a pressing roller and a gravure printing roller rotatably connected to the fixed frame via bearings, the pressing roller and the gravure printing roller being connected via a transmission mechanism, an ink tank fixedly connected to the upper surface of the base plate, a transfer roller rotatably connected to the ink tank via bearings, sealing parts abutting at both ends of the ink tank, a notch being provided at the middle of the two sealing parts, the transfer roller being located within the notch, and the sealing parts being limited by a limiting mechanism.

[0006] Preferably, the transmission mechanism includes a first gear fixedly connected to the pressing roller, a second gear fixedly connected to the gravure printing roller, the second gear meshing with the first gear, and a motor fixedly connected to the fixed frame, the motor being drivenly connected to the gravure printing roller.

[0007] Preferably, a doctor blade is fixedly connected inside the ink tank, and the doctor blade abuts against the transfer roller.

[0008] Preferably, the limiting mechanism includes a through groove, which is formed on the fixed frame. An abutment block is provided in the through groove. One end of the abutment block is fixedly connected to the sealing part, and the other end of the abutment block is provided with an abutment mechanism.

[0009] Preferably, the abutting mechanism includes a rotating shaft, which is rotatably connected to the fixed frame via a connecting bearing. An abutting part is fixedly connected to the end of the rotating shaft, and the abutting part abuts against the abutting block.

[0010] Preferably, the connecting bearing is a thrust ball bearing.

[0011] The gravure printing device proposed in this utility model has the following advantages: by using a sealing part to cover the opening of the ink tank, the exposed area of ​​the opening at the top of the ink tank is reduced, which helps to reduce ink evaporation and reduce the situation of ink waste leading to increased costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a gravure printing device proposed in this utility model;

[0013] Figure 2 This is a perspective view of a gravure printing apparatus proposed in this utility model;

[0014] Figure 3 This is a three-dimensional sectional view of a gravure printing device proposed in this utility model.

[0015] Figure 4 This utility model proposes a gravure printing device. Figure 2 Enlarged view of section A.

[0016] In the diagram: 1. Base plate; 2. Transfer roller; 3. Squeegee; 4. Gravure printing roller; 5. Press roller; 6. Sealing part; 7. First gear; 8. Second gear; 9. Motor; 10. Fixing frame; 11. Abutting block; 12. Abutting part; 13. Connecting bearing; 14. Notch; 15. Rotating shaft; 16. Through groove; 17. Ink tank. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Example 1: Refer to Figure 1-3A gravure printing apparatus includes a base plate 1, a fixed frame 10 fixedly connected to the base plate 1, a pressing roller 5 and a gravure printing roller 4 rotatably connected to the fixed frame 10 via bearings, and a transmission mechanism connecting the pressing roller 5 and the gravure printing roller 4. An ink tank 17 is fixedly connected to the upper surface of the base plate 1, and a transfer roller 2 is rotatably connected to the ink tank 17 via bearings. Both ends of the ink tank 17 abut against sealing parts 6, and a notch 14 is opened in the middle of the two sealing parts 6. The transfer roller 2 is located in the notch 14. The gap between the outer walls of the roller 2 is controlled at 0.1-0.3mm to ensure smooth rotation of the transfer roller 2 and minimize ink evaporation from the gap. The sealing parts 6 are limited by a limiting mechanism. By using the sealing parts 6 to cover the opening of the ink tank 17, the exposed area of ​​the opening at the upper end of the ink tank 17 is reduced, which helps to reduce ink evaporation and reduces the situation of ink waste and increased costs.

[0019] Example 2: Refer to Figure 1-4 As another preferred embodiment of this utility model, based on embodiment 1, the transmission mechanism includes a first gear 7, which is fixedly connected to the pressing roller 5. A second gear 8 is fixedly connected to the gravure printing roller 4, and the second gear 8 meshes with the first gear 7. A motor 9 is fixedly connected to the fixed frame 10, and the motor 9 is connected to the gravure printing roller 4 for transmission. The printing material passes through the gap between the pressing roller 5 and the gravure printing roller 4. When the gravure printing roller 4 rotates, it prints ink on the material to complete the printing.

[0020] A scraper 3 is fixedly connected inside the ink tank 17. The scraper 3 abuts against the transfer roller 2. The scraper 3 scrapes off excess ink from the transfer roller 2, ensuring the uniformity of ink on the transfer roller 2.

[0021] Example 3: Reference Figure 1-4 As another preferred embodiment of this utility model, based on embodiment 2, the limiting mechanism includes a through groove 16, which is opened on the fixed frame 10. An abutment block 11 is provided in the through groove 16. One end of the abutment block 11 is fixedly connected to the sealing part 6, and the other end of the abutment block 11 is provided with an abutment mechanism. The abutment mechanism includes a rotating shaft 15, which is rotatably connected to the fixed frame 10 through a connecting bearing 13. An abutment part 12 is fixedly connected to the end of the rotating shaft 15. The abutment part 12 abuts against the abutment block 11, which plays a limiting role for the sealing part 6, so that the ends of the two sealing parts 6 abut against each other and fix the two sealing parts 6. When it is necessary to open the sealing part 6, the fixing of the abutment block 11 can be released by rotating the abutment part 12.

[0022] The connecting bearing 13 is a thrust ball bearing to handle axial loads and prevent damage caused by using ordinary bearings that cannot handle axial loads.

[0023] During printing, the material to be printed passes through the pressing roller 5 and the gravure printing roller 4. The transfer roller 2 picks up the ink from the ink tank 17. When the transfer roller 2 and the gravure printing roller 4 rotate in contact, the ink is transferred onto the gravure printing roller 4. After the material to be printed passes through, the gravure printing roller 4 prints the ink onto the material. When it is necessary to open the sealing part 6, the abutment part 12 is rotated to release the abutment block 11, and the abutment block 11 is pulled to move the sealing part 6, thus opening the upper end of the ink tank 17.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gravure printing apparatus, comprising a base plate (1), characterized in that, A fixed frame (10) is fixedly connected to the base plate (1). A pressing roller (5) and a gravure printing roller (4) are rotatably connected to the fixed frame (10) via bearings. The pressing roller (5) and the gravure printing roller (4) are connected by a transmission mechanism. An ink tank (17) is fixedly connected to the upper surface of the base plate (1). A transfer roller (2) is rotatably connected to the ink tank (17) via bearings. Both ends of the ink tank (17) are abutted by sealing parts (6). A notch (14) is opened in the middle of the two sealing parts (6). The transfer roller (2) is located in the notch (14). The sealing parts (6) are limited by a limiting mechanism.

2. The gravure printing apparatus according to claim 1, characterized in that, The transmission mechanism includes a first gear (7), which is fixedly connected to the pressing roller (5). A second gear (8) is fixedly connected to the gravure printing roller (4), and the second gear (8) meshes with the first gear (7). A motor (9) is fixedly connected to the fixed frame (10), and the motor (9) is connected to the gravure printing roller (4) in a transmission connection.

3. The gravure printing apparatus according to claim 1, characterized in that, A doctor blade (3) is fixedly connected inside the ink box (17), and the doctor blade (3) abuts against the transfer roller (2).

4. The gravure printing apparatus according to claim 1, characterized in that, The limiting mechanism includes a through groove (16), which is opened on the fixed frame (10). An abutment block (11) is provided in the through groove (16). One end of the abutment block (11) is fixedly connected to the sealing part (6), and the other end of the abutment block (11) is provided with an abutment mechanism.

5. The gravure printing apparatus according to claim 4, characterized in that, The abutting mechanism includes a rotating shaft (15), which is rotatably connected to the fixed frame (10) via a connecting bearing (13). An abutting part (12) is fixedly connected to the end of the rotating shaft (15), and the abutting part (12) abuts against the abutting block (11).

6. The gravure printing apparatus according to claim 5, characterized in that, The connecting bearing (13) is a thrust ball bearing.

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