TWI641502B - Ink jet nozzle protection device - Google Patents

Abstract

The invention relates to an inkjet head protection device for a construction area, wherein the construction area is filled with dust. The inkjet head protection device comprises a moving base body and an air flow guiding mechanism, and the moving base body has a nozzle seat and a nozzle The seat has one or a plurality of ink jet heads, and the ink jet head is disposed corresponding to the construction area; the air flow guiding mechanism is mounted on the moving base body, the air flow guiding mechanism generates a dust separating layer flow and has a guiding dust layer flowing in the ink jet head An air flow port is formed between the construction area and the dust separation layer for blocking the dust raised from the self-construction area. Thereby, the airflow guiding mechanism generates a dust flow layer flowing between the inkjet head and the construction zone, and the dust barrier flow blocks the dust raised from the construction zone, thereby preventing the inkjet head from being polluted by the powder, so that the spray The ink head protection device has the advantage of greatly extending the life of the ink jet head.

Description

Inkjet head protector

The present invention relates to an ink jet head protecting device for a printing machine, and more particularly to an ink jet head protecting device.

3D printing technology uses a powder-laying mechanism to evenly lay the powder material in the construction area, and uses the printing mechanism to spray the adhesive on the powder material to form a three-dimensional three-dimensional adhesion. Real. At present, toy components, mechanical parts or human bones can be quickly fabricated using 3D printing technology, making 3D printing technology one of the rapid prototyping technologies.

However, the above 3D printing technology will have a powder problem, and the life of the inkjet head has a significant correlation with the powder contamination. The main reason for the damage of the inkjet head is that it is contaminated by the powder, so if It can avoid the contamination of the inkjet head by the powder, which can greatly extend the life of the inkjet head.

In view of the above, the inventors of the present invention have made great efforts to solve the above problems by focusing on the above-mentioned prior art, and have made great efforts to solve the above problems, which has become the object of development by the present inventors.

The invention provides an inkjet head protection device which utilizes an airflow guiding mechanism to generate a dust-laden laminar flow flowing between an inkjet head and a construction zone, and a dust-removing laminar flow for blocking powder raised from the self-construction zone Dust, to avoid contamination of the inkjet head by the powder, so that the inkjet head protection device has the advantage of greatly extending the life of the inkjet head.

In the embodiment of the present invention, the present invention provides an inkjet head protection device for a construction area, wherein the construction area is filled with dust, and the inkjet head protection device comprises: a movable base body having a nozzle holder. The nozzle holder has at least one inkjet head, the inkjet head is disposed corresponding to the construction area, the movable body defines a printing direction and moves along the printing direction; and an airflow guiding mechanism is mounted on the movement a seat body, the air flow guiding mechanism generates a dust-removing laminar flow and has an air flow port for guiding the flow of the dust-removing layer between the ink-jet head and the construction zone, and the flow direction of the dust-removing laminar flow The printing direction is parallel and reversed, and the dust layer flow is used to block the dust raised from the construction area.

Based on the above, when the adhesive sprayed toward the printing direction by the inkjet head falls in the construction zone and the powdery material is stuck into a shape, the lighter powdery material may cause the dust to stick with the inkjet head in the printing direction. Therefore, the airflow stability of the dust-removing laminar flow is gradually decreasing toward the airflow opening, so the flow direction of the dust-repellent laminar flow is parallel and reversely arranged with the printing direction, so that the raised powder material is away from the inkjet head. .

100‧‧‧Building Area

10‧‧‧Inkjet head protection device

1‧‧‧Spray base

11‧‧‧Inkjet head

111‧‧‧Nozzle end

112‧‧‧left side

113‧‧‧right

2‧‧‧Air guiding mechanism

21‧‧‧ airflow

22‧‧‧Horizontal channel

221‧‧‧ upper flow surface

2211‧‧‧ sloped surface

222‧‧‧ lower diversion surface

2221‧‧‧ horizontal plane

223, 223’ ‧ ‧ straight flat

23‧‧‧Direct channel

24, 24’‧‧‧ fans

3‧‧‧Concentration board

4, 4'‧‧‧ stop baffle

A‧‧‧dust separation

d‧‧‧Printing direction

Θ‧‧‧ angle

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective assembled view of a first embodiment of an ink jet head protection device of the present invention.

Figure 2 is another perspective assembled view of the first embodiment of the ink jet head protection device of the present invention.

Fig. 3 is a view showing the state of use of the first embodiment of the ink jet head protecting device of the present invention.

Figure 4 is a perspective assembled view of a second embodiment of the ink jet head protection device of the present invention.

Fig. 5 is a view showing the state of use of the second embodiment of the ink jet head protecting device of the present invention.

Figure 6 is a perspective assembled view of a third embodiment of the ink jet head protection device of the present invention.

Fig. 7 is a view showing the state of use of the third embodiment of the ink jet head protecting device of the present invention.

The detailed description and technical content of the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 3, the present invention provides a first embodiment of an inkjet head protection device for printing a construction area 100 of a finished product. The construction area 100 is stacked with a layer of dust. The protection device 10 mainly includes a moving base body 1 and an air flow guiding mechanism 2.

As shown in FIG. 1 to FIG. 3, the moving base 1 defines a printing direction d and moves along the printing direction d. The moving base 1 has a head holder 11, and the head holder 11 has one or a plurality of ink jet heads 111. A left side 112 and a right side 113, the ink jet head 111 is disposed corresponding to the construction area 100.

As shown in FIG. 1 to FIG. 3, the airflow guiding mechanism 2 is mounted on the moving base body 1, and the airflow guiding mechanism 2 generates a dust separating layer flow a and has a guiding dust separating layer flow a flowing in the ink jet head 111 and construction. In a gas flow port 21 between the regions 100, the flow direction of the dust-removing layer flow a is parallel and opposite to the printing direction d, and the dust-separating layer flow a is used to block the dust raised from the construction region 100. The dust-removing laminar flow a is a blowing airflow that blows the airflow opening 21 from the transverse passage 22.

As described in detail below, the airflow guiding mechanism 2 includes a transverse passage 22 and a straight passage 23, and the transverse passage 22 and the straight passage 23 are respectively fixed to the movable seat body 1, and the lateral passage 22 is disposed at one side of the head holder 11, transversely An end of the channel 22 adjacent to the ink jet head 111 is formed with an air flow port 21 and an inner side having an opposite upper flow guiding surface 221 and a lower flow guiding surface 222. The straight channel 23 is integrally extended from the end of the transverse channel 22 away from the ink jet head 111. And communicating with the lateral passage 22. The left side 112 and the right side 113 of the head holder 11 are spanned on both sides of the air flow port 21.

In addition, the upper flow guiding surface 221 is an inclined surface 2211. The inclined surface 2211 is gradually inclined toward the inside of the lateral passage 22 toward the inkjet head 111. The lower guiding surface 222 is a horizontal plane 2221, and between the inclined surface 2211 and the horizontal plane 2221. The angle θ is between 10° and 12°.

In addition, a fan 24 is installed in the straight channel 23 of the embodiment, and the fan 24 is used to generate the dust-removing laminar flow a. However, without limitation, the straight channel 23 can also be connected with an external air guiding tube. The air duct is used to guide the dust separation layer flowa from the outside to the inside of the straight passage 23.

As shown in FIG. 2, the inkjet head protection device 10 of the present invention further includes two concentrating plates 3, which are respectively fixed to the movable base body 1 and disposed on the left side 112 and the right side 113 of the head holder 11, and the two concentrating plates 3 are used. In order to avoid the flow of the dust-removing layer a flowing to the ink-jet head 111 to the both sides, the two-concentration plate 3 which is characterized in that the airflow is prevented from being scattered on both sides of the head holder 11 is provided, so that the head protection device 10 has the dust-proofing. The laminar flow a has the advantage of stably flowing under the ink jet head 111.

As shown in FIG. 3, the combination of the inkjet head protection device 10 of the present invention has a nozzle holder 11 by means of a movable base 1, the nozzle holder 11 has an inkjet head 111, and the inkjet head 111 is disposed corresponding to the construction area 100; The guiding mechanism 2 is mounted on the moving base body 1. The air guiding mechanism 2 generates a dust separating layer flow a and has a guiding dust separating layer flow a flowing between the ink jet head 111 and the construction area 100, and the dust separating layer flow a is used to block the dust raised from the self-construction area 100. Thereby, the airflow guiding mechanism 2 generates a dust-removing laminar flow a flowing between the inkjet head 111 and the construction area 100, and the dust-repellent laminar flow a is used to block the dust raised from the self-construction zone 100, thereby avoiding the inkjet head. The 111 is contaminated by the powder, so that the head protecting device 10 has an advantage of greatly extending the life of the head 111.

As shown in Fig. 3, in the state of use of the ink jet head protecting device 10 of the present invention, the ink jet head 111 performs a printing operation along the printing direction d, and a mixture of the adhesive and the powdery material ejected by the ink jet head 111 is used. The dripping to the construction area 100 raises the dust, and the main cause of the damage of the ink jet head 111 is that it is contaminated by the powder, so that a dust separation layer a is disposed between the ink jet head 111 and the construction area 100. The dust layer flow a can block the dust raised from the construction region 100, so that the inkjet head 111 is not contaminated by the powder to achieve the purpose of protecting the inkjet head 111.

Further, a method of providing the dust-removing laminar flow a between the ink-jet head 111 and the construction region 100 is as follows. The fan 24 generates a dust-removing laminar flow a that is blown toward the straight passage 23, and the straight passage 23 guides the dust-proof layer. The flow a is blown downward to the transverse passage 22, and the upper flow guiding surface 221 is an inclined surface 2211 which guides the airflow above the dust separating layer a to be inclined, and the lower guiding surface 222 is the horizontal plane 2221 which is the airflow below the dust separating layer a. In the horizontal direction, the angle θ between the inclined surface 2211 and the horizontal surface 2221 is between 10° and 12°, so that the dust-removing laminar flow a flowing out of the air flow port 21 is kept between the inkjet head 111 and the construction area 100 with a low slope. Moreover, the low-slope dust-removing laminar flow a is closer to the position of the ink-jet head 111, thereby enhancing the effect of preventing the ink-jet head 111 from being contaminated by the powder.

Furthermore, when the adhesive sprayed by the inkjet head 111 toward the printing direction d falls in the construction region 100 and the powdery material is bonded, the lighter powdery material may cause the dust to adhere to the spray with the printing direction d. The ink head 111 is blocked, so that the airflow stability of the dust-removing laminar flow a is gradually decreased toward the airflow opening 21, so that the flow direction of the dust-repellent laminar flow a is parallel and reversely arranged with the printing direction d, so that The raised powder material is away from the ink jet head 111.

Referring to FIG. 4 to FIG. 5, the second embodiment of the ink jet head protection device 10 of the present invention is substantially the same as the first embodiment, but the second embodiment differs from the first embodiment. The upper flow guiding surface 221 and the lower flow guiding surface 222 are respectively flat planes 223 and 223'.

Further, the upper flow guiding surface 221 is a straight flat surface 223 that guides the airflow above the dust separating layer flow a, and the lower air guiding surface 222 is a straight flat surface 223' that directs the airflow under the dust separating layer a to a horizontal level. Because the dust-removing layer flow a of the outflow airflow port 21 is kept horizontal, the position of the lower flow guiding surface 222 needs to protrude below the position of the inkjet head 111, and the airflow port 21 can smoothly guide the dust-storing layer flow a to the inkjet. Between the head 111 and the construction area 100. Thereby, the functions and effects similar to those of the first embodiment are achieved.

In addition, the inkjet head protection device 10 further includes a stop plate 4 fixed to the movable base body 1 and disposed on a side of the head holder 11 close to the airflow port 21, and the stop plate 4 is used for stopping the dust barrier. The laminar flow a is such that the dust-removing laminar flow a is prevented from being directly blown toward the ink-jet head 111, so that the dust-repellent laminar flow a is held below the ink-jet head 111.

In addition, a fan 24' for generating a dust-removing laminar flow a is installed in the lateral passage 22, the fan 24' generates a dust-removing laminar flow a to the transverse passage 22, and finally the dust-removing laminar flow a is blown out through the airflow opening 21 to Below the inkjet head 111.

Referring to FIG. 6 to FIG. 7, a third embodiment of the ink jet head protection device 10 of the present invention is substantially the same, but the third embodiment and the second embodiment are different. The flow layer a of the dust separation layer is a suction air flow that is sucked into the lateral passage 22 from the air flow port 21.

As described in detail below, the fan 24 generates the dust-removing layer flow a drawn into the straight passage 23, so that the dust-removing layer flow a flows sequentially from the outside, the air flow port 21, and the lateral passage 22 to the inside of the straight passage 23, and the upper guide The flow surface 221 is a straight flat plane 223 that directs the airflow above the dust-separating layer flow a, and the lower air-conducting surface 222 is a straight flat plane 223' that directs the airflow below the dust-separating layer flow a to the horizontal The position of the 222 needs to protrude below the position of the inkjet head 111, and the airflow port 21 can smoothly suck out the dust separation layer a between the inkjet head 111 and the construction zone 100, so that the dust of the construction zone 100 enters the dust separation layer a and The flow of the dust-removing layer a is drawn into the inside of the lateral passage 22 to prevent the ink-jet head 111 from contacting the powder and being contaminated by the powder to achieve the purpose of protecting the ink-jet head 111.

In addition, the inkjet head protection device 10 further includes a stop plate 4' fixed to the movable base body 1 and disposed on a side of the head holder 11 away from the airflow port 21, and the stop plate 4' is used for stopping The dust-repellent layer flows a, so that the dust-removing laminar flow a is prevented from flowing directly to the ink-jet head 111, so that the dust-removing laminar flow a is maintained around the ink-jet head 111.

In summary, the inkjet head protection device of the present invention has not been seen in the same kind of products and is used publicly, and has industrial utilization, novelty and progress, fully conforms to the requirements of the new patent application, and applies for the application according to the patent law. Please check and grant the patent in this case to protect the rights of the inventor.

Claims (12)

An inkjet head protection device for a construction area, wherein the construction area is filled with dust, the inkjet head protection device comprises: a movable base body having a nozzle holder, the nozzle holder having at least one inkjet head, The ink jet head is disposed corresponding to the construction area, the moving seat body defines a printing direction and moves along the printing direction; and an air flow guiding mechanism is mounted on the moving seat body, and the air flow guiding mechanism generates a partition a dust layer flow and an air flow port guiding the flow of the dust separation layer between the ink jet head and the construction area, wherein a flow direction of the dust separation layer flow is parallel and reversely arranged with the printing direction, The dust barrier flow is used to block the dust raised from the construction zone. The inkjet head protection device of claim 1, wherein the airflow guiding mechanism comprises a lateral passage fixed to the moving base and disposed on one side of the showerhead, the lateral passage being close to the spray One end of the ink head is formed with the air flow port and the inner side has an upper upper flow guiding surface and a lower flow guiding surface. The inkjet head protection device of claim 2, wherein the upper flow guiding surface is an inclined surface that gradually slopes toward the interior of the lateral passage toward the inkjet head, the lower flow guiding surface being A horizontal plane. The ink jet head protection device of claim 3, wherein an angle between the inclined surface and the horizontal surface is between 10° and 12°. The ink jet head protection device according to claim 2, wherein the upper flow guiding surface and the lower flow guiding surface are respectively a flat plane, and a position of the lower flow guiding surface protrudes below the position of the ink jet head. The ink jet head protection device according to claim 3 or 5, wherein the dust separation layer flow is an air blowing air which blows the air flow opening from the lateral passage. The ink jet head protection device of claim 6, further comprising a stop plate fixed to the movable seat body and disposed on a side of the head holder close to the air flow port. The ink jet head protection device of claim 5, wherein the dust separation layer flows from the air flow port into the transverse passage and an intake air flow. The inkjet head protection device of claim 8, further comprising a stop plate fixed to the movable base and disposed on a side of the head holder away from the airflow opening. The inkjet head protection device of claim 1, further comprising a concentrating plate having a left side and a right side spanning on both sides of the airflow opening, the two concentrating plates being respectively fixed to the moving base And disposed on the left side and the right side of the head holder. The inkjet head protection device of claim 2, wherein the airflow guiding mechanism further comprises a straight channel, the straight channel being fixed to the moving body, the straight channel being away from the inkjet from the lateral channel One end of the head is integrally formed and communicates with the transverse passage, and a fan that generates the flow of the dust separating layer is installed in the straight passage. The ink jet head protection device of claim 2, wherein a fan that generates the flow of the dust-repellent layer is installed in the lateral passage.