Digital printer dusting mechanism

Abstract

The utility model relates to the technical field of printing machines, and discloses a digital printing machine powder scattering mechanism which comprises a powder scattering pipe, a nozzle, a powder storage bin and a powder blowing pipe, one end of the powder scattering pipe is closed, the other end of the powder scattering pipe is open, a powder inlet cavity communicated with the opening is formed in the powder scattering pipe, the nozzle is connected with the opening, and the powder blowing pipe is connected with the nozzle. The powder storage bin and the powder inlet cavity are communicated and connected with the outer wall of the powder scattering pipe, the powder storage bin is further connected with an air pipe connector, one end of the powder blowing pipe penetrates through the outer wall of the powder scattering pipe and is arranged in the nozzle, and the other end of the powder blowing pipe is used for being connected with an air inlet device. According to the powder scattering mechanism of the digital printing machine, during powder scattering, the air pipe connector is connected with the air inlet pipe for air inlet, powder is conveyed to the powder inlet cavity, then the air inlet device blows air into the powder blowing pipe, the powder in the powder inlet cavity enters the nozzle to be discharged, powder scattering is achieved, powder scattering power is provided by air, the powder scattered on a workpiece is even, the powder scattering effect is good, and the powder scattering efficiency is high. And the dusting quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a powder spreading mechanism of a digital printing machine. Background Art

[0002] In the digital printing process, powdering process is often combined to improve the appearance of the product. However, the existing powdering mechanism has poor powdering effect, which affects the final quality of the product. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a powder spreading mechanism for a digital printing machine, which improves the powder spreading effect and ensures product quality.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A powder spreading mechanism of a digital printing machine comprises a powder spreading tube, a nozzle, a powder storage bin and a powder blowing tube, wherein one end of the powder spreading tube is closed and the other end is open, the interior of the powder spreading tube is a powder inlet chamber connected to the opening, the nozzle is connected to the opening, the powder storage bin is connected to the outer wall of the powder spreading tube in communication with the powder inlet chamber, an air pipe joint is also connected to the powder storage bin, one end of the powder blowing tube passes through the outer wall of the powder spreading tube and is arranged in the nozzle, and the other end is used to connect to an air intake device.

[0006] Preferably, the nozzle is in a truncated cone shape, and its larger bottom surface is connected to the opening.

[0007] Preferably, the powder storage bin and the powder spreading pipe are arranged obliquely.

[0008] Preferably, the angle between the center line of the powder storage bin and the center line of the powder spreading pipe is a, and the value range of a is 50 to 70 degrees.

[0009] Preferably, the powder inlet chamber extends to both ends of the powder sprinkling tube, and a closing cover is provided at one end of the powder sprinkling tube away from the nozzle.

[0010] Preferably, a handle is provided on the outer wall of the powder sprinkling tube, and the powder storage bin is located between the nozzle and the handle.

[0011] Preferably, one end of the powder blowing tube disposed in the nozzle is a powder blowing end, the powder blowing end passes through the handle in sequence, the powder sprinkling tube is disposed in the nozzle, and the portion of the powder blowing tube exposed outside the handle is provided with a first flow valve.

[0012] Preferably, an air inlet pipe is provided on the air pipe joint, and a second flow valve is provided on the air inlet pipe.

[0013] The powder sprinkling mechanism of a digital printing machine in the embodiment of the utility model has the beneficial effect compared with the prior art in that a nozzle is connected to the open end of a powder sprinkling pipe, a powder storage bin connected to a powder inlet chamber is arranged on the outer wall of the powder sprinkling pipe, an air pipe joint is also connected to the powder storage bin, and at the same time, one end of the powder blowing pipe is passed through the outer wall of the powder sprinkling pipe and arranged in the nozzle, and the other end is connected to an air intake device. When sprinkling powder, the air pipe joint is connected to the air intake pipe to intake air, and the powder is transported to the powder inlet chamber. Then the air intake device blows air into the powder blowing pipe, so that the powder in the powder inlet chamber enters the nozzle and is discharged, thereby achieving powder sprinkling. Since the gas provides the power for powder sprinkling, the powder sprinkled on the workpiece is uniform, the powder sprinkling effect is good, and the powder sprinkling quality is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the powder spreading mechanism of the digital printing machine of the utility model.

[0015] Among them: 1-powder spreading pipe, 11-powder inlet chamber, 2-nozzle, 3-powder storage bin, 4-powder blowing pipe, 5-air pipe joint, 6-handle, 7-closing cover. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] like Figure 1As shown, a powder spreading mechanism of a digital printing machine according to a preferred embodiment of the utility model comprises a powder spreading tube 1, a nozzle 2, a powder storage bin 3 and a powder blowing tube 4. One end of the powder spreading tube 1 is closed and the other end is open. The interior of the powder spreading tube 1 is a powder inlet chamber 11 connected to the opening. Specifically, the powder inlet chamber 11 extends to both ends of the powder spreading tube 1. The end of the powder spreading tube 1 away from the nozzle 2 is provided with a closing cover 7. The powder spreading tube 1 can be directly made of an existing steel pipe. The nozzle 2 is connected to the opening, the powder storage bin 3 is connected to the outer wall of the powder spreading tube 1 in communication with the powder inlet chamber 11, and an air pipe joint 5 is also connected to the powder storage bin 3. One end of the powder blowing tube 4 passes through the outer wall of the powder spreading tube 1 and is arranged in the nozzle 2, and the other end is used to connect to the air intake device.

[0020] The powder sprinkling mechanism of the digital printing machine based on the above technical features is characterized in that a nozzle 2 is connected to the open end of the powder sprinkling tube 1, a powder storage bin 3 connected to the powder inlet chamber 11 is arranged on the outer wall of the powder sprinkling tube 1, and an air pipe joint 5 is also connected to the powder storage bin 3. At the same time, one end of the powder blowing tube 4 is passed through the outer wall of the powder sprinkling tube 1 and arranged in the nozzle 2, and the other end is connected to the air intake device. When sprinkling powder, the air pipe joint 5 is connected to the air intake pipe to intake air, and the powder is transported to the powder inlet chamber 11. Then the air intake device blows air into the powder blowing tube 4, so that the powder in the powder inlet chamber 11 enters the nozzle 2 and is discharged, thereby realizing powder sprinkling. Since the gas provides the power for powder sprinkling, the powder sprinkled on the workpiece is uniform, the powder sprinkling effect is good, and the powder sprinkling quality is guaranteed.

[0021] In this embodiment, the nozzle 2 is in the shape of a truncated cone, and its larger bottom surface is connected to the opening, and the powder is sprinkled onto the workpiece from the end with a smaller bottom surface.

[0022] In this embodiment, the powder storage bin 3 and the powder spreading tube 1 are arranged obliquely. Specifically, if the angle between the center line of the powder storage bin 3 and the center line of the powder spreading tube 1 is a, the value range of a is 50 to 70 degrees, such as 55 degrees, 65 degrees, etc., preferably 60 degrees. Angle a is the angle between the powder storage bin 3 and the end of the powder spreading tube 1 away from the nozzle 2, which facilitates the powder in the powder storage bin 3 to enter the nozzle 2.

[0023] In this embodiment, for easy operation, the powder spreading mechanism includes a handle 6 arranged on the outer wall of the powder spreading tube 1, and the powder storage bin 3 is located between the nozzle 2 and the handle 6. When manually spraying powder, the handle 6 can be directly held. Of course, the powder spreading mechanism can also be directly installed on a digital printing machine to achieve automatic powder spreading.

[0024] In this embodiment, in order to conveniently control the amount of powder, one end of the powder blowing tube 4 disposed in the nozzle 2 is the powder blowing end, and the powder blowing end sequentially passes through the handle 6, and the powder sprinkling tube 1 is disposed in the nozzle 2. The portion of the powder blowing tube 4 exposed outside the handle 6 is provided with a first flow valve, and at the same time, an air inlet pipe is provided on the air pipe joint 5, and a second flow valve is provided on the air inlet pipe. Under the action of the first flow valve and the second flow valve, automatic control of the powder amount is achieved.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A powder spreading mechanism for a digital printing machine, characterized in that: It includes a powder sprinkling pipe, a nozzle, a powder storage bin and a powder blowing pipe, one end of the powder sprinkling pipe is closed and the other end is open, the interior of the powder sprinkling pipe is a powder inlet chamber connected to the opening, the nozzle is connected to the opening, the powder storage bin is connected to the outer wall of the powder sprinkling pipe in communication with the powder inlet chamber, the powder storage bin is also connected to an air pipe joint, one end of the powder blowing pipe passes through the outer wall of the powder sprinkling pipe and is arranged in the nozzle, and the other end is used to connect to an air intake device.

2. The powder spreading mechanism of a digital printing machine according to claim 1, characterized in that: The nozzle is in a truncated cone shape, and its larger bottom surface is connected to the opening.

3. The powder spreading mechanism of a digital printing machine according to claim 1, characterized in that: The powder storage bin and the powder spreading pipe are arranged obliquely.

4. The powder spreading mechanism of a digital printing machine as claimed in claim 3, characterized in that: The angle between the center line of the powder storage bin and the center line of the powder spreading pipe is a, and the value range of a is 50 to 70 degrees.

5. The powder spreading mechanism of a digital printing machine according to claim 1, characterized in that: The powder inlet cavity extends to both ends of the powder sprinkling tube, and a closing cover is provided at one end of the powder sprinkling tube away from the nozzle.

6. The powder spreading mechanism of a digital printing machine according to any one of claims 1 to 5, characterized in that: It comprises a handle arranged on the outer wall of the powder sprinkling tube, and the powder storage bin is located between the nozzle and the handle.

7. The powder spreading mechanism of a digital printing machine as claimed in claim 6, characterized in that: One end of the powder blowing tube disposed in the nozzle is a powder blowing end, the powder blowing end passes through the handle in sequence, the powder sprinkling tube is disposed in the nozzle, and a first flow valve is disposed on the portion of the powder blowing tube exposed outside the handle.

8. The powder spreading mechanism of a digital printing machine according to any one of claims 1 to 5, characterized in that: An air inlet pipe is arranged on the air pipe joint, and a second flow valve is arranged on the air inlet pipe.

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