Printing roller

Abstract

The invention relates to the technical field of printing equipment, and particularly discloses a printing roller which comprises a rotating air cylinder (10), a printing roller body (20) used for installing the rotating air cylinder (10), an ink outlet device (30) arranged in the printing roller body (20), an ink supply pump (40) installed on one side of the ink outlet device (30) and an ink box (50) connected with the ink supply pump (40). According to the printing roller, through the built-in ink outlet device, ink is conveyed into the ink outlet device in the ink outlet device from the ink box through the ink supply pump, then is brought out through the rolling ball on the ink outlet device and is conveyed into the ink passing seam of the printing roller, the ink is conveyed into the ink flowing groove through the ink passing seam according to the capillary principle, and at the moment, the ink is gathered on the whole printing roller; when the ink is continuously reduced, the ink flowing groove can automatically complement the ink according to the capillary principle, in this way, the ink can be prevented from dripping to the outside, the ink can be automatically sucked through the capillary principle, ink waste can be reduced, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of printing equipment, in particular to a printing roller. Background Art

[0002] The tipping paper printing machine has a frame, on which there are raw material rollers, printing rollers and finished product rollers. There is an ink tank under the printing roller. The printing roller is a cylindrical structure with roller shafts at both ends. When in use, the printing roller dips ink and can be applied on the tipping paper. In the prior art, there is no device at both ends of the printing roller to prevent the ink from flowing out to the ends. In this way, the ink often drips onto the outside ground during use, which not only fails to ensure printing hygiene and is inconvenient to use, but also causes a large amount of ink waste. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a printing roller, in which an ink outlet device is arranged inside the printing roller, thereby solving the problems of printing hygiene and ink waste.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A printing roller comprises: a rotating cylinder, a printing roller for mounting the rotating cylinder, an ink outlet device arranged inside the printing roller, an ink supply pump installed at one side of the ink outlet device, and an ink box connected to the ink supply pump.

[0006] Preferably, the printing roller comprises a shell, a plurality of ink passing slots provided on the roller shell, and an ink flow groove provided between the plurality of ink passing slots; and shaft holes are provided on both sides of the roller shell.

[0007] Preferably, the ink outlet device includes a box body, fixed shafts arranged on both sides of the box body, an ink supply tube inserted into the left fixed shaft, and a plurality of ink outlet devices connected to the ink supply tube; the ink outlet device is inserted into the shaft hole through the fixed shaft to form a whole with the printing roller; the rotating cylinder is installed on the fixed shaft; and the ink outlet device is in contact with the ink gap.

[0008] Preferably, the ink supply tube comprises a main tube and a plurality of branch tubes connected to the main tube; the ink supply tube is connected to the ink outlet device via the branch tubes.

[0009] Preferably, the ink outlet includes an outer shell, an outer ring member arranged at one end of the outer shell, an inner ring member installed on the inner side of the outer ring member, a rolling ball arranged in the inner ring member, an ink outlet tube arranged above the rolling ball, and anti-vibration rollers arranged on both sides of the ink outlet tube; the ink outlet is connected to the branch tube through the ink outlet tube; the ink outlet is in contact with the ink gap through the rolling ball.

[0010] Preferably, the anti-vibration roller includes a ball, an anti-vibration head for mounting the ball, limit rods arranged on both sides of the anti-vibration head, a base connected to the limit rods, and a spring installed between the base and the anti-vibration head.

[0011] Compared with the prior art, this application has the following beneficial effects:

[0012] The printing roller of the present invention has a built-in ink outlet device. The ink is transferred from the ink box to the ink outlet device in the ink outlet device through the ink supply pump, and then brought out by the rolling ball on the ink outlet device, thereby transferred to the ink gap of the printing roller. Through the capillary principle, the ink is transferred from the ink gap to the ink flow groove. At this time, the ink is gathered on the entire printing roller and can be applied to the tipping paper. When the ink is continuously reduced, the ink flow groove is automatically replenished according to the capillary principle. This method can prevent the ink from dripping outside and automatically absorb the ink through the capillary principle, thereby reducing ink waste and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0014] Figure 1 It is a structural schematic diagram of a printing roller according to the present invention;

[0015] Figure 2 for Figure 1 The structural diagram of the printing roller;

[0016] Figure 3 for Figure 2 AA cross-sectional structural diagram;

[0017] Figure 4 for Figure 1 A schematic diagram of the structure of the middle ink outlet device;

[0018] Figure 5 for Figure 4 BB cross-sectional structure diagram;

[0019] Figure 6 for Figure 5 A schematic diagram of the structure of the middle ink dispenser;

[0020] Figure 7 for Figure 6 Schematic diagram of the structure of the anti-vibration roller. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various configurations. 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.

[0022] 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.

[0023] Unless otherwise defined, the technical terms or scientific terms used in this patent document shall have the usual meanings understood by people with ordinary skills in the field to which the invention belongs. The words "first", "second" and similar words used in the patent specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "one" or "the" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 of the present invention.

[0024] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0025] Embodiment 1:

[0026] A printing roller comprises: a rotating cylinder 10, a printing roller 20 for mounting the rotating cylinder 10, an ink outlet device 30 arranged inside the printing roller 20, an ink supply pump 40 installed on one side of the ink outlet device 30, and an ink box 50 connected to the ink supply pump 40.

[0027] like Figure 1As shown, the ink supply pump 40 draws ink from the ink box 50 and supplies it to the ink outlet device 30 installed on the inner wall of the printing roller 20. The ink is applied to the outer wall of the printing roller 20 from the inner wall of the printing roller 20 through the built-in ink outlet device 30. The printing roller 20 replaces the existing equipment that needs to dip ink from an external ink tank, thereby preventing the ink from dripping from the printing roller 20 to the outer bottom surface due to excessive ink after dipping. This not only solves the hygiene problem caused by excessive ink, but also reduces ink loss.

[0028] Furthermore, the printing roller 20 includes a shell 21 , a plurality of ink-passing slots 22 formed on the roller shell 21 , and ink-flowing grooves 23 disposed between the plurality of ink-passing slots 22 ; and shaft holes 24 are formed on both sides of the roller shell 21 .

[0029] like Figure 2 and Figure 3 As shown, in order to allow the ink to flow from the inside of the printing roller 20 to the outside, an ink slot 22 is opened on the printing roller 20. After the ink outlet device 30 discharges ink, the ink flows out through the ink slot 22, and then flows into the entire slot through the ink flow groove 23 arranged between the multiple ink slots 22.

[0030] The ink flow grooves 23 are arranged in an orderly manner along the axis of the printing roller 20 and cover the entire outer wall of the printing roller 20. In order to make the ink flow grooves 23 have a capillary effect, the diameter of the ink flow grooves 23 is set to 0.2 mm. Through the capillary principle, when the printing roller 20 rotates through the rotating cylinder 10, ink is brought out from the ink outlet device 30 and quickly fills the entire ink flow grooves 23. Moreover, during the printing process, the ink flow grooves 23 can continuously fill up the ink in the grooves through capillary action. At the same time, due to the combined effect of capillary action and water tension, it is difficult for ink to drip from the ink flow grooves 23.

[0031] Furthermore, the ink outlet device 30 includes a box body 31, fixed shafts 32 arranged on both sides of the box body 31, an ink supply tube 33 inserted into the left fixed shaft 32, and a plurality of ink outlet devices 34 connected to the ink supply tube 33; the ink outlet device 30 is inserted into the shaft hole 24 through the fixed shaft 32 to form a whole with the printing roller 20; the rotating cylinder 10 is installed on the fixed shaft 32; and the ink outlet device 34 is in contact with and connected to the ink gap 22.

[0032] Furthermore, the ink supply tube 33 includes a main tube 331 and a plurality of branch tubes 332 connected to the main tube 331 ; the ink supply tube 33 is connected to the ink outlet 34 via the branch tubes 332 .

[0033] like Figure 4 and Figure 5 As shown, the ink supply pump 40 draws ink from the ink tank 50 and delivers the ink to the ink outlet 34 in the tank body 31 through the ink supply tube 33 .

[0034] The rotating cylinder 10 can rotate on the fixed shaft 32, which can drive the printing roller 20 connected to the rotating cylinder 10 to rotate on the fixed shaft 32. The ink outlet 34 is in contact with and connected to the ink gap 22 on the printing roller 20. When the printing roller 20 rotates, the ink on the ink outlet 34 can be brought into the ink gap 22, and then filled into the groove of the ink flow groove 23 by the capillary action of the ink flow groove 23.

[0035] There are multiple ink outlets 34, which are arranged symmetrically along the central axis of the main pipe 331 and are supplied with ink through different branch pipes 332.

[0036] Furthermore, the ink outlet device 34 includes an outer shell 341, an outer ring member 342 arranged at one end of the outer shell 341, an inner ring member 343 installed on the inner side of the outer ring member 342, a rolling ball 344 arranged in the inner ring member 343, an ink outlet tube 345 arranged above the rolling ball 344, and anti-vibration rollers 346 arranged on both sides of the ink outlet tube 345; the ink outlet device 34 is connected to the branch pipe 332 through the ink outlet tube 345; the ink outlet device 34 is in contact with the ink gap 22 through the rolling ball 344.

[0037] like Figure 6 As shown, in order to ensure uniform ink discharge, the ink enters the ink outlet 34 through the branch pipe 332 and is sucked onto the ball 344 through the ink outlet tube 345 by capillary force, and then the ball 344 rolls in the inner ring 343 and is distributed to the entire ball 344 (this process and principle adopts the ballpoint pen principle).

[0038] Because the rolling ball 344 is in contact with the ink gap 22 , when the printing roller 20 rolls, due to capillary action, the ink quickly fills into the ink gap 22 from the rolling ball 344 , and then quickly fills into the ink flow groove 23 by capillary action, thereby covering the entire printing roller 20 .

[0039] Furthermore, the anti-vibration roller 346 includes a ball 3461, an anti-vibration head 3462 for mounting the ball 3461, limiting rods 3463 arranged on both sides of the anti-vibration head 3462, a base 3464 connected to the limiting rods 3463, and a spring 3465 installed between the base 3464 and the anti-vibration head 3462.

[0040] like Figure 7As shown, in order to realize that when the printing roller 20 rolls, it can drive the ball 344 to rotate while preventing the printing roller 20 from vibrating and causing the ball 344 to get stuck and cause ink leakage, an anti-vibration roller 346 is provided; the anti-vibration roller 346 can produce an extrusion connection between the ball 3461 and the ball 344 through the elastic force of the spring 3465, and can make the ball 344 squeeze and contact with the inner wall of the printing roller 20, so that the friction force drives the ball 344 to rotate, and because the spring 3465 is provided inside the anti-vibration roller 346, the elastic force of the spring 3465 offsets the vibration force brought by the printing roller 20, thereby preventing the ball 344 from getting stuck and causing ink leakage due to vibration.

[0041] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A printing roller, characterized in that: include: A rotary cylinder (10), a printing roller (20) for mounting the rotary cylinder (10), an ink outlet device (30) disposed inside the printing roller (20), an ink supply pump (40) mounted on one side of the ink outlet device (30), and an ink tank (50) connected to the ink supply pump (40).

2. A printing roller according to claim 1, characterized in that: The printing roller (20) comprises a shell (21), a plurality of ink-passing slots (22) provided on the roller shell (21), and ink-flowing grooves (23) arranged between the plurality of ink-passing slots (22); and shaft holes (24) are provided on both sides of the roller shell (21).

3. A printing roller according to claim 2, characterized in that: The ink outlet device (30) comprises a housing (31), fixed shafts (32) arranged on both sides of the housing (31), an ink supply tube (33) inserted into the left fixed shaft (32), and a plurality of ink outlet devices (34) connected to the ink supply tube (33); the ink outlet device (30) is inserted into the shaft hole (24) through the fixed shaft (32) to form a whole with the printing roller (20); the rotary cylinder (10) is installed on the fixed shaft (32); and the ink outlet device (34) is in contact with and connected to the ink slit (22).

4. A printing roller according to claim 3, characterized in that: The ink supply tube (33) comprises a main tube (331) and a plurality of branch tubes (332) connected to the main tube (331); the ink supply tube (33) is connected to the ink outlet (34) via the branch tubes (332).

5. A printing roller according to claim 4, characterized in that: The ink outlet (34) comprises an outer shell (341), an outer ring member (342) arranged at one end of the outer shell (341), an inner ring member (343) installed on the inner side of the outer ring member (342), a rolling ball (344) arranged in the inner ring member (343), an ink outlet tube (345) arranged above the rolling ball (344), and anti-vibration rollers (346) arranged on both sides of the ink outlet tube (345); the ink outlet (34) is connected to the branch tube (332) through the ink outlet tube (345); and the ink outlet (34) contacts the ink gap (22) through the rolling ball (344).

6. A printing roller according to claim 5, characterized in that: The anti-vibration roller (346) includes a ball (3461), an anti-vibration head (3462) for mounting the ball (3461), limiting rods (3463) arranged on both sides of the anti-vibration head (3462), a base (3464) connected to the limiting rods (3463), and a spring (3465) installed between the base (3464) and the anti-vibration head (3462).

Images