Floating powder removing device of digital printing machine

Abstract

The utility model relates to the technical field of printing machines, and discloses a digital printing machine floating powder removing device which is arranged on a powder storage tank of a powder spraying assembly, a powder spraying opening is formed in the lower end of the powder storage tank, the digital printing machine floating powder removing device comprises a powder suction cylinder arranged on the outer wall of the powder spraying opening in a sleeving mode, and a powder suction cavity is formed in the powder suction cylinder and used for being connected with an air suction device. A plurality of air suction holes are evenly distributed in the end face of the lower end of the powder suction cylinder around the center of the powder spraying opening and communicate with the powder suction cavity. The powder suction barrel is arranged on the outer wall of the powder spraying opening of the powder storage tank of the powder spraying assembly in a sleeving mode, the powder suction cavity used for being connected with the air suction device is formed in the powder suction barrel, the multiple air suction holes are evenly distributed in the end face of the lower end of the powder suction barrel around the center of the powder spraying opening, and the air suction holes communicate with the powder suction cavity; excessive glitter powder sprayed out is sucked away through the air suction hole through the air suction assembly, the function of removing redundant floating powder is achieved, the floating powder is prevented from being attached to a product, and the quality of the product is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to a powder removal device for digital printing presses. Background Technology

[0002] In digital printing, powder application is often combined to improve the appearance of the product. However, after powder application, excess powder may remain in the air around the product. If not removed promptly, this powder may adhere to the product and affect its quality. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a powder removal device for digital printing machines, which can promptly remove excess powder generated during the powder spraying process and ensure product quality.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A powder removal device for a digital printing machine is installed on a powder storage tank of a powder spraying assembly. The lower end of the powder storage tank is provided with a powder spraying nozzle. The device is characterized by including a powder suction cylinder sleeved on the outer wall of the powder spraying nozzle. The powder suction cylinder has a powder suction chamber inside, which is used to connect to an air suction device. The lower end face of the powder suction cylinder has a plurality of air suction holes evenly distributed around the center of the powder spraying nozzle. The air suction holes are connected to the powder suction chamber.

[0006] Preferably, the side wall of the powder suction cylinder is provided with a powder discharge pipe that communicates with the powder suction chamber, and the other end of the powder discharge pipe is used to connect to the air suction device.

[0007] Preferably, the lower end face of the powder suction tube is provided with a plurality of brushes, and the plurality of brushes are arranged in a one-to-one correspondence with a plurality of air suction holes, and the air suction holes are located in the middle of the corresponding brushes.

[0008] Preferably, each brush includes multiple sets of bristles arranged sequentially in a direction away from the air intake, and each set of bristles includes multiple bristle units evenly distributed around the center of the air intake.

[0009] Preferably, the powder suction cylinder is equipped with a vibrating plate, and the plurality of brushes are all connected to the vibrating plate.

[0010] Preferably, the vibrating plate is a piezoelectric ceramic plate.

[0011] Preferably, an air blowing chamber is provided between the powder suction cylinder and the outer wall of the powder storage tank, and the air blowing chamber is used to connect an air blowing device.

[0012] This utility model provides a digital printing machine powder removal device. Compared with the prior art, its advantages are as follows: By installing a powder suction cylinder on the outer wall of the powder nozzle of the powder storage tank of the powder spraying assembly, and setting a powder suction chamber for connecting the suction device inside the powder suction cylinder, multiple suction holes are evenly distributed around the center of the powder nozzle on the lower end face of the powder suction cylinder. The suction holes are connected to the powder suction chamber. When the powder spraying assembly sprays out glitter during the printing process, the suction assembly removes the excess glitter through the suction holes, thereby achieving the function of removing excess powder, avoiding powder adhesion to the product, and ensuring product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the powder removal device for digital printing machines according to this utility model.

[0014] Figure 2 for Figure 1 A sectional view.

[0015] Figure 3 This is a bottom view of the powder removal device for digital printing machines according to this utility model.

[0016] Among them: 1-powder storage tank, 11-powder spraying nozzle, 2-powder suction cylinder, 21-powder suction chamber, 22-air suction hole, 3-powder discharge pipe, 4-brush, 41-brush unit, 5-air blowing chamber. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0018] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figure 1-2 As shown, a preferred embodiment of the present invention provides a powder removal device for a digital printing machine. The device is mounted on a powder storage tank 1 of a powder spraying assembly. The lower end of the powder storage tank 1 has a powder spraying nozzle 11. The device includes a powder suction cylinder 2 fitted onto the outer wall of the powder spraying nozzle 11. The powder suction cylinder 2 has a powder suction chamber 21 inside, which is used to connect to an air suction device. Specifically, the side wall of the powder suction cylinder 2 has a powder discharge pipe 3 communicating with the powder suction chamber 21. The other end of the powder discharge pipe 3 is used to connect to the air suction device. A plurality of air suction holes 22 are evenly distributed around the center of the powder spraying nozzle 11 on the lower end face of the powder suction cylinder 2. The air suction holes 22 are connected to the powder suction chamber 21.

[0021] The digital printing machine powder removal device based on the above technical features uses a powder suction cylinder 2 fitted on the outer wall of the powder nozzle 11 of the powder storage tank 1 of the powder spraying assembly. The powder suction cylinder 2 is provided with a powder suction chamber 21 for connecting the air suction device. Multiple air suction holes 22 are evenly distributed around the center of the powder nozzle 11 on the lower end face of the powder suction cylinder 2. The air suction holes 22 are connected to the powder suction chamber 21. When the powder spraying assembly sprays out glitter during the printing process, the excess glitter sprayed out is sucked away by the air suction assembly through the air suction holes 22, thereby realizing the function of removing excess powder, avoiding powder adhering to the product, and ensuring product quality.

[0022] In some embodiments, since the substrate is placed on the working platform of the printing press, some loose powder may adhere to the working platform during the actual powder spraying process. To remove this dust, multiple brushes 4 can be provided on the lower end face of the powder suction cylinder 2. Each brush 4 corresponds to one of the multiple suction holes 22, and the suction holes 22 are positioned between the corresponding brushes 4. That is, the brushes 4 sweep away the adhering dust, and then the suction device removes the dust through the suction holes 22.

[0023] In addition, to ensure better dust removal, the powder suction cylinder 2 is equipped with a vibrating plate, and multiple brushes 4 are connected to the vibrating plate. Dust is removed by the vibration of the vibrating plate, such as a piezoelectric ceramic plate; or the brushes 4 can be rotated using a mechanical structure; or the brushes 4 can be driven to move with the powder spraying assembly by the moving mechanism of the powder spraying assembly to remove dust. Simultaneously, an air blowing chamber 5 is provided between the outer wall of the powder suction cylinder 2 and the powder storage tank 1, and the air blowing chamber 5 is used to connect an air blowing device. Therefore, when the powder spraying assembly sprays glitter during the printing process, the brushes 4 around the powder spraying nozzle 11 and the air blowing device begin to work, blowing away excess glitter and sweeping it away by the air blowing device and the vibration or rotation of the brushes 4. The dust is then sucked away by the suction hole 22 in the middle of the brushes 4, thus achieving the function of removing excess dust.

[0024] like Figure 3 As shown in this embodiment, each brush 4 includes multiple sets of bristles arranged sequentially in a direction away from the air intake 22. Each set of bristles includes multiple bristle units 41 evenly distributed around the center of the air intake 22, thereby ensuring the number of bristles on the brush and ensuring the dust cleaning effect.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A powder cleaning device for a digital printing machine, arranged on a powder storage tank of a powder spraying assembly, the powder storage tank having a powder spraying opening at a lower end thereof, characterized in that: The powder suction cylinder is sleeved on the outer wall of the powder injection port, and the inner part of the powder suction cylinder is provided with a powder suction cavity for connecting an air suction device.

2. The digital printer kiss removal device of claim 1, wherein: The side wall of the powder suction cylinder is provided with a powder discharge pipe in communication with the powder suction cavity, and the other end of the powder discharge pipe is used for connecting the air suction device.

3. The digital printer kiss removal device of claim 1, wherein: The lower end face of the powder suction cylinder is provided with a plurality of brushes, and the plurality of brushes are arranged one by one in correspondence with the plurality of air suction holes.

4. The digital printer kiss removal device of claim 3, wherein: Each of the brushes comprises a plurality of groups of brush hairs arranged in sequence in a direction away from the air suction hole, and each group of the brush hairs comprises a plurality of brush hair units uniformly arranged around the center of the air suction hole.

5. The digital printer kiss removal device of claim 3, wherein: The powder suction cylinder is provided with a vibrating plate, and the plurality of brushes are connected to the vibrating plate.

6. The digital printer kiss removal apparatus of claim 5, wherein: The vibrating plate is a piezoelectric ceramic plate.

7. A digital printer powder removal device as claimed in any one of claims 1 to 6 wherein: The powder suction cylinder and the outer wall of the powder storage tank are provided with a blowing cavity for connecting a blowing device.

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