CN210634130U

CN210634130U - Well jumbo size LCD photocuring 3D printer cooling device

Info

Publication number: CN210634130U
Application number: CN201920657450.6U
Authority: CN
Inventors: 陈烜; 谢鸿凯; 何谢见; 彭鹏
Original assignee: Suzhou Daye 3d Printing Technology Co ltd
Current assignee: Suzhou Daye 3d Printing Technology Co ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-05-29
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a well jumbo size LCD photocuring 3D printer cooling device relates to printer technical field, including print platform, the print platform top is provided with high printing opacity support piece, high printing opacity support piece top is provided with LCD screen, the print platform bottom is provided with the light source cover, be provided with the baffle in the light source cover, light source cover bottom is provided with the base, print platform, the light source cover, plenum in the zonulae occludens formation between baffle and base, second ventilation hole department is provided with turbofan, turbofan sets up on the base, the light source cover is established in the back lid, print platform, a pedestal, and the outer plenum of back lid and the tight connection formation of front cover, be provided with third ventilation hole on the light source cover. The utility model provides a current jumbo size LCD printer long-time work, local lamp plate heat dissipation can not dispel the heat well, arouses easily to print screen high temperature, lamp plate high temperature, has seriously influenced the life-span of printing the screen and the problem in the life-span of light source.

Description

Well jumbo size LCD photocuring 3D printer cooling device

Technical Field

The utility model belongs to the technical field of the printer, concretely relates to well jumbo size LCD photocuring 3D printer cooling device.

Background

The selective area curing and forming technology for light cured liquid resin includes mainly the following steps: the laser scanning imaging light curing principle, the projector imaging irradiation forming technology and the display screen imaging ultraviolet spectrum light curing technology. The existing LCD photocuring principle is as follows: by utilizing the liquid crystal screen imaging principle, under the control of a computer and a screen driving circuit, a computer program provides an image model, a selective black and white area appears on a liquid crystal screen, white is a light-transmitting area, black is a light-tight area, under the irradiation of a light source, the light-transmitting area of the liquid crystal screen has small obstruction to ultraviolet light, the ultraviolet light can transmit, in the light-tight area, the ultraviolet light is blocked, and the ultraviolet light transmitting the liquid crystal screen forms an ultraviolet light image area. A light-cured liquid resin groove is arranged on the surface of the liquid crystal screen, a transparent film is arranged at the bottom of the groove, ultraviolet light irradiates the liquid light-cured resin through the transparent film, the resin irradiated by the ultraviolet light is cured and reflected, and the irradiated liquid resin becomes a solid state. The opaque portion of the liquid crystal screen blocks ultraviolet light. The liquid light-curing resin of the shielded part is not irradiated by ultraviolet rays, and the part of the resin which is not irradiated still keeps liquid. The cured resin is the molded part of the product that we make with the printer.

The light source of the light curing equipment has strong heat radiation, the long-term radiation can seriously influence the service life of the liquid crystal screen, the liquid crystal screen can be possibly damaged due to the overlarge radiation heat, certain heat can be generated during resin curing, the heat can act on the liquid crystal screen, and meanwhile, the long-time irradiation of the light source can also enable the light source to be high in temperature and influence the service life of the light source.

The existing small-size LCD photocuring printer screen has no heat dissipation function, and the local lamp plate has an air cooling heat dissipation function, so that if the large-size LCD printer works for a long time in a short-time and small-area printing mode, the local lamp plate cannot dissipate heat well, high temperature of the printing screen and the lamp plate is easily caused, and the service life of the printing screen and the service life of a light source are seriously influenced. In order to solve the problem of high temperature of the liquid crystal screen and effectively prolong the service life of the liquid crystal screen due to the high temperature of the light source, a printer cooling device needs to be designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a well jumbo size LCD photocuring 3D printer cooling device to solve the long-time work of the current jumbo size LCD printer that proposes in the above-mentioned background art, local lamp plate heat dissipation can not dispel the heat well, arouses easily to print screen high temperature, lamp plate high temperature, has seriously influenced the life-span of printing the screen and the problem in the life-span of light source.

In order to achieve the above object, the utility model provides a following technical scheme: a cooling device for a medium-size and large-size LCD (liquid crystal display) photocuring D printer comprises a printing platform, wherein a high-light-transmission support is arranged at the top of the printing platform, a liquid crystal screen is arranged at the top of the high-light-transmission support, a light source cover is arranged at the bottom of the printing platform, a baffle is arranged in the light source cover, a base is arranged at the bottom of the light source cover, the printing platform, the light source cover, the baffle and the base are tightly connected to form an inner air chamber, a first air vent is formed in the right side of a rear cover, a second air vent is formed in the top of the base, a turbofan is arranged;

the light source cover is arranged in the rear cover, the printing platform, the base, the rear cover and the front cover are tightly connected to form an outer air chamber, and a third ventilation hole is formed in the light source cover.

Preferably, an air duct is reserved on the heat dissipation sheet.

Preferably, a temperature sensor is arranged in the inner air chamber, the temperature sensor is electrically connected with a microcomputer controller, the microcomputer controller is electrically connected with the turbofan, and a radiating fin is arranged at the bottom in the light source cover.

Preferably, the printing platform, the light source cover, the baffle plate and the base are tightly connected through screws.

Preferably, the first vent hole, the second vent hole and the third vent hole are all circular.

Preferably, the outer surfaces of the rear cover and the front cover are coated with antirust paint.

Compared with the prior art, the utility model provides a well jumbo size LCD photocuring 3D printer cooling device possesses following beneficial effect:

the utility model discloses ingenious mobility that has utilized wind sets up through special wind channel design and negative pressure principle, makes external cold air loop through the runner and loops through the light source room and print the screen, and the hot-air outgoing who will flow through high temperature region through turbofan reaches and gives LCD print screen and light source radiating purpose at last, has following advantage for the water-cooling: the mechanism is relatively simple and has high reliability; no cooling water tank and heat exchange device are used, so that the cost is low; the requirement on the internal space is not high; the LCD 3D printer with a compact structure has high support.

(1) The utility model discloses an air-cooled mode, simple structure, the effect is showing.

(2) The utility model discloses an inside and outside plenum structure under the effect of negative pressure, makes the air folk prescription to flowing, the effectual radiating stability of having guaranteed. The wind energy is adopted to promote circulation, and the maintenance is simple and the use is convenient.

(3) The utility model discloses the problem of screen high temperature, lamp plate high temperature is printed to solution that again can be fine under the equal condition, and the temperature of in-process is printed in effectual reduction, and the life of the printing screen of improvement has prolonged the power decay time of lamp plate.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization provides very big help for people.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of an exploded three-dimensional structure of the present invention;

fig. 2 is a schematic view of the air flow direction in a longitudinal section according to the present invention;

fig. 3 is a schematic view of the air flow direction in horizontal section according to the present invention;

fig. 4 is a schematic perspective view of the present invention;

in the figure: 1. a liquid crystal screen; 2. a support member; 3. a printing platform; 4. a rear cover; 5. a turbo fan; 6. a heat sink; 7. a base; 8. a front cover; 9. a light source cover; 10. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a technical solution of a cooling device for a medium-size and large-size LCD photocuring 3D printer: the utility model provides a well jumbo size LCD photocuring 3D printer cooling device, including print platform 3, print platform 3 top is provided with high printing opacity support piece 2, high printing opacity support piece 2 top is provided with LCD screen 1, print platform 3 bottom is provided with light source cover 9, be provided with baffle 10 in the light source cover 9, light source cover 9 bottom is provided with base 7, print platform 3, light source cover 9, zonulae occludens forms interior plenum between baffle 10 and base 7, rear cover 4 right side is provided with first ventilation hole, base 7 top is provided with the second ventilation hole, second ventilation hole department is provided with turbofan 5, turbofan 5 sets up on base 7, light source cover 9 sets up in rear cover 4, print platform 3, base 7, and rear cover 4 and front cover 8 zonulae occludens form the outer plenum of plenum, be provided with the third ventilation hole on the light source cover 9.

The utility model discloses a theory of operation and use flow: the temperature sensor is arranged in the inner air chamber, the rotating speed of the turbofan 5 is adjusted along with the change of the temperature under the control of the microcomputer controller, the maximum heat is quickly discharged to the outside, meanwhile, the turbofan 5 rotates at high speed to form negative pressure in the inner air chamber, so that the outside air continuously flows into the outer air chamber through the first vent hole of the rear cover 4 to be primarily cooled, then enters the inner air chamber through the third vent hole on the light source cover 9 to cool the printing screen, and under the action of the turbofan 5, the heat generated by the light source fixed on the radiating fins 6 is discharged to the outside from the second vent hole of the base 7 by the high-speed flowing air to achieve the purpose of cooling; the air duct is reserved on the radiating fins 6, so that wind can smoothly reach each independent radiating surface, the radiating area is increased, and the radiating effect is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A cooling device for a medium-large-size LCD photocuring 3D printer comprises a printing platform (3), a rear cover (4) and a radiating fin (6), and is characterized in that: the printing device is characterized in that a high-light-transmission support (2) is arranged at the top of the printing platform (3), a liquid crystal screen (1) is arranged at the top of the high-light-transmission support (2), a light source cover (9) is arranged at the bottom of the printing platform (3), a baffle (10) is arranged in the light source cover (9), a base (7) is arranged at the bottom of the light source cover (9), the printing platform (3), the light source cover (9), the baffle (10) and the base (7) are tightly connected to form an inner air chamber, a first air vent is arranged on the right side of the rear cover (4), a second air vent is arranged at the top of the base (7), a turbofan (5) is arranged at the second air vent, and the turbofan (5);

the light source cover (9) is arranged in the rear cover (4), the printing platform (3), the base (7), the rear cover (4) and the front cover (8) are tightly connected to form an outer air chamber, and a third ventilation hole is formed in the light source cover (9).

2. The cooling device for the medium and large size LCD photocuring 3D printer according to claim 1, wherein: an air duct is reserved on the radiating fin (6).

3. The cooling device for the medium and large size LCD photocuring 3D printer according to claim 1, wherein: the inner air chamber is internally provided with a temperature sensor which is electrically connected with a microcomputer controller, the microcomputer controller is electrically connected with a turbofan (5), and the bottom of the light source cover (9) is provided with a radiating fin (6).

4. The cooling device for the medium and large size LCD photocuring 3D printer according to claim 1, wherein: the printing platform (3), the light source cover (9), the baffle (10) and the base (7) are tightly connected through screws.

5. The cooling device for the medium and large size LCD photocuring 3D printer according to claim 1, wherein: the first ventilation hole, the second ventilation hole and the third ventilation hole are all circular.

6. The cooling device for the medium and large size LCD photocuring 3D printer according to claim 1, wherein: and the outer surfaces of the rear cover (4) and the front cover (8) are coated with antirust paint.