CN212045985U

CN212045985U - Cooling device for 3D printing blanking machine

Info

Publication number: CN212045985U
Application number: CN202020034892.8U
Authority: CN
Inventors: 葛永强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-12-01
Anticipated expiration: 2030-01-08

Abstract

The utility model relates to a cooling device for a 3D printing blanking machine, which comprises a frame, wherein a spray head is arranged above the frame, and a forming plate is arranged below the frame; an upper cooling mechanism is arranged on the spray head, and a lower cooling mechanism is arranged in the forming plate; the upper cooling mechanism comprises a sleeve and an upper cooling pipeline spirally wound on the outer side surface of the spray head, an upper regulating valve is arranged at the inlet of the upper cooling pipeline, a temperature sensor is arranged at the ink-jet end of the spray head, and the temperature sensor and the upper regulating valve are controlled by a controller to run in a linkage manner; the lower cooling mechanism comprises a lower cooling pipeline arranged on the inner side of the forming plate and a lower regulating valve arranged at the inlet of the lower cooling pipeline, the lower cooling pipeline is formed by connecting a plurality of U-shaped pipes together, and the regulating opening of the lower regulating valve is controlled by a controller; the lower surface of the forming plate is also provided with a heat exchange plate. This cooling device can be unanimous to the accurate cooling of unloading shower nozzle and the cooling rate of control unloading shower nozzle blowout material printing product on the profiled sheeting, can realize quick cooling, can guarantee refrigerated stability again, the yields when improving the product shaping.

Description

Cooling device for 3D printing blanking machine

Technical Field

The utility model belongs to the technical field of 3D printing apparatus, concretely relates to 3D prints cooling device for blanking machine.

Background

3D printing is one of rapid prototyping technologies, which is a technology for constructing an object by using a bondable material, such as powdered metal or plastic, and printing layer by layer on the basis of a digital model file.

The printer during operation sprays special glue in the shaping region, because glue liquid drop itself is very little, and difficult diffusion, then sprays even powder, and the powder meets glue and can solidify rapidly and cohere, through the alternative of one deck glue, one deck powder, "prints" out the solid model. In the process of spraying the powder, the powder is usually heated by the spray head, and the spray head is in a high-temperature state for a long time and usually needs an external cooling device. The 3D printer of prior art adopts the fan to lower the temperature to the cavity usually during the unloading. The heat dissipation area formed by cooling by the fan is large, the energy consumption is high, and the pertinence is not high; form on the board because cooling rate is different, print material cooling rate differs to product shrinkage differs when leading to printing the shaping, influence product quality, consequently, need improve 3D for the printing material unloader cooling device.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: to the above defect, the utility model provides a 3D prints cooling device for unloader, this cooling device can be unanimous to the accurate cooling of unloading shower nozzle and the cooling rate of control unloading shower nozzle blowout material printing product on the profiled sheeting, can realize quick cooling, can guarantee refrigerated stability again, the yields when improving the product shaping.

The utility model provides a technical scheme that its technical problem adopted as follows: the cooling device for the 3D printing blanking machine comprises a rack, wherein a spray head for ink jetting is arranged above the rack, a forming plate is arranged below the rack, an upper cooling mechanism is arranged on the spray head, and a lower cooling mechanism is arranged in the forming plate;

the upper cooling mechanism comprises a sleeve arranged outside the spray head and an upper cooling pipeline spirally wound on the outer side surface of the spray head and arranged in the sleeve, an upper regulating valve is arranged at the inlet of the upper cooling pipeline, a temperature sensor is arranged at the ink-jet end of the spray head, and the temperature sensor and the upper regulating valve are controlled by a controller to operate in a linkage manner;

the lower cooling mechanism comprises a lower cooling pipeline arranged on the inner side of the forming plate and a lower regulating valve arranged at the inlet of the lower cooling pipeline, the lower cooling pipeline is formed by connecting a plurality of U-shaped pipes together, and the regulating opening of the lower regulating valve is controlled by a controller; and the lower surface of the forming plate is also provided with a heat exchange plate.

The cooling device for the 3D printing blanking machine comprises an upper cooling mechanism and a lower cooling mechanism, can effectively perform constant temperature control on materials sprayed by a blanking spray head, can ensure the stability of ink jet and control of cooling rate on a matched forming plate, does not need to frequently change the cooling temperature of a cooling medium, and runs stably; a built-in U type cooling tube of profiled sheeting that is used for loading unloading shower nozzle blowout ink simultaneously forms evenly distributed's cooling channel, can realize quick cooling, can guarantee the unanimity of cooling rate again, and shaping refrigerated stability is good, the yields when improving the product shaping.

Further, the upper cooling pipeline is of a double-spiral structure; the lower cooling pipeline is formed by mutually embedding and communicating a plurality of U-shaped pipes. The lower cooling tube that double helix structure's last cooling tube and the mutual gomphosis of U type pipe communicate can increase the area of contact between cooling device and the shower nozzle, increases the area of contact of printing the product on cooling device and the profiled sheeting down, improves the cooling effect, realizes cooling fast.

Further, the condensing medium in the upper cooling pipeline is gas or cooling water; and the condensing medium in the lower cooling pipeline is cooling water. The upper cooling pipeline is filled with gas, so that the problem of leakage of the cooling pipe can be avoided, and the condition of damage to a printed product cannot be caused; if cooling water is introduced into the upper cooling pipeline and the lower cooling pipeline, water cooling circulation can be realized, energy is saved, consumption is reduced, and the environment is protected.

Furthermore, the heat exchange plate is made of aluminum alloy, and the aluminum alloy heat exchange plate is arranged, so that the aluminum alloy has good heat dissipation performance and light weight, and the load bearing capacity of the rack can be reduced; the cooling efficiency of quick cooling, improvement printing floor can be realized.

Furthermore, the heat exchange plate is provided with a fan with a downward air opening, the cooling rate on the forming plate can be further improved by arranging the fan, heat conducted on the heat exchange plate is dissipated in time, the heat dissipation effect is good, and quick cooling is realized; and the opening direction of the fan can not generate material disturbance during ink jet, and the printing effect is good.

The utility model has the advantages that:

1. the cooling device for the 3D printing blanking machine comprises an upper cooling mechanism and a lower cooling mechanism, can effectively perform constant temperature control on materials sprayed by a blanking spray head, can ensure the stability of ink jet and control of cooling rate on a matched forming plate, does not need to frequently change the cooling temperature of a cooling medium, and runs stably; a built-in U type cooling tube of profiled sheeting that is used for loading unloading shower nozzle blowout ink simultaneously forms evenly distributed's cooling channel, can realize quick cooling, can guarantee the unanimity of cooling rate again, and shaping refrigerated stability is good, the yields when improving the product shaping.

2. The upper cooling pipeline of the double-spiral structure and the lower cooling pipe which is mutually embedded and communicated with the U-shaped pipe can increase the contact area between the upper cooling device and the spray head, increase the contact area between the lower cooling device and a printed product on the forming plate, improve the cooling effect and realize quick cooling; the aluminum alloy heat exchange plate is arranged, the aluminum alloy has good heat dissipation performance and light weight, and the load bearing capacity of the rack can be reduced; the rapid cooling can be realized, and the cooling efficiency of the printed floor is improved; by arranging the fan, the cooling rate on the forming plate can be further improved, heat conducted on the heat exchange plate can be dissipated in time, the heat dissipation effect is good, and quick cooling is realized; and the opening direction of the fan can not generate material disturbance during ink jet, and the printing effect is good.

3. The upper cooling pipeline is filled with gas, so that the problem of leakage of the cooling pipe can be avoided, and the condition of damage to a printed product cannot be caused; if cooling water is introduced into the upper cooling pipeline and the lower cooling pipeline, water cooling circulation can be realized, energy is saved, consumption is reduced, and the environment is protected.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the bottom view structure of the present invention;

fig. 3 is a schematic structural view of an upper cooling mechanism in embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a lower cooling mechanism in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of an upper cooling mechanism in embodiment 2 of the present invention;

fig. 6 is a schematic structural view of a lower cooling mechanism in embodiment 2 of the present invention;

wherein: the device comprises a nozzle 1, a forming plate 2, an upper cooling mechanism 3, a sleeve 31, an upper cooling pipeline 32, an upper regulating valve 33, a temperature sensor 34, a lower cooling mechanism 4, a lower cooling pipeline 41, a lower regulating valve 42, a heat exchange plate 43, a fan 44 and a controller 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1-4, the cooling device for the 3D printing blanking machine comprises a frame 6, a nozzle 1 for ink jetting is arranged above the frame 6, a forming plate 2 is arranged below the frame 6, an upper cooling mechanism 3 is arranged on the nozzle 1, and a lower cooling mechanism 4 is arranged in the forming plate 2;

the upper cooling mechanism 3 comprises a sleeve 31 arranged outside the spray head 1 and an upper cooling pipeline 32 spirally wound on the outer side surface of the spray head 1 and arranged in the sleeve 31, an upper regulating valve 33 is arranged at the inlet of the upper cooling pipeline 32, a temperature sensor 34 is arranged at the ink-jet end of the spray head 1, the temperature sensor 34 and the upper regulating valve 33 are controlled by the controller 5 to run in a linkage manner, and a condensing medium in the upper cooling pipeline 32 is gas;

the lower cooling mechanism 4 comprises a lower cooling pipeline 41 arranged on the inner side of the forming plate 2 and a lower adjusting valve 42 arranged at the inlet of the lower cooling pipeline 41, a condensing medium in the lower cooling pipeline 41 is cooling water, the lower cooling pipeline 41 is formed by connecting a plurality of U-shaped pipes together, and the adjusting opening degree of the lower adjusting valve 42 is controlled by a controller 5; the lower surface of the forming plate 2 is also provided with a heat exchange plate 43 made of an aluminum alloy material, and the heat exchange plate 43 is provided with a fan 44 with a downward air opening.

Example 2

Referring to fig. 1, 2, 5 and 6, the cooling device for the 3D printing blanking machine comprises a frame 6, wherein a nozzle 1 for ink jetting is arranged above the frame 6, a forming plate 2 is arranged below the frame 6, an upper cooling mechanism 3 is arranged on the nozzle 1, and a lower cooling mechanism 4 is arranged in the forming plate 2;

the upper cooling mechanism 3 comprises a sleeve 31 arranged outside the spray head 1 and an upper cooling pipeline 32 spirally wound on the outer side surface of the spray head 1 and arranged in the sleeve 31, and the upper cooling pipeline 32 is of a double-spiral structure; the condensing medium in the upper cooling pipeline 32 is cooling water, an upper regulating valve 33 is arranged at the inlet of the upper cooling pipeline 32, a temperature sensor 34 is arranged at the ink-jet end of the spray head 1, and the temperature sensor 34 and the upper regulating valve 33 are controlled by the controller 5 to run in a linkage manner;

the lower cooling mechanism 4 comprises a lower cooling pipeline 41 arranged on the inner side of the forming plate 2 and a lower adjusting valve 42 arranged at the inlet of the lower cooling pipeline 41, the lower cooling pipeline 41 is formed by mutually embedding and communicating a plurality of U-shaped pipes, a condensing medium in the lower cooling pipeline 41 is cooling water, and the adjusting opening degree of the lower adjusting valve 42 is controlled by a controller 5; the lower surface of the forming plate 2 is also provided with a heat exchange plate 43 made of aluminum alloy, and the heat exchange plate 43 is provided with a fan 44 with a downward air opening.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

3D prints cooling device for unloader, including frame (6), frame (6) top is equipped with shower nozzle (1) that is used for the inkjet, and frame (6) below is equipped with and is used for profiled sheeting (2), its characterized in that: an upper cooling mechanism (3) is arranged on the spray head (1), and a lower cooling mechanism (4) is arranged in the forming plate (2);

the upper cooling mechanism (3) comprises a sleeve (31) arranged outside the spray head (1) and an upper cooling pipeline (32) spirally wound on the outer side surface of the spray head (1) and arranged in the sleeve (31), an upper regulating valve (33) is arranged at the inlet of the upper cooling pipeline (32), a temperature sensor (34) is arranged at the ink-jet end of the spray head (1), and the temperature sensor (34) and the upper regulating valve (33) are controlled by the controller (5) to operate in a linkage manner;

the lower cooling mechanism (4) comprises a lower cooling pipeline (41) arranged on the inner side of the forming plate (2) and a lower adjusting valve (42) arranged at the inlet of the lower cooling pipeline (41), the lower cooling pipeline (41) is formed by connecting a plurality of U-shaped pipes together, and the adjusting opening degree of the lower adjusting valve (42) is controlled by a controller (5); and a heat exchange plate (43) is further arranged on the lower surface of the forming plate (2).
2. The cooling device for the 3D printer-unloader of claim 1, wherein: the upper cooling pipe (32) is of a double-spiral structure.
3. The cooling device for the 3D printer-unloader of claim 1, wherein: the lower cooling pipeline (41) is formed by mutually embedding and communicating a plurality of U-shaped pipes.
4. The cooling device for the 3D printer-unloader of claim 1, wherein: the condensing medium in the upper cooling pipeline (32) is gas or cooling water; the condensing medium in the lower cooling pipeline (41) is cooling water.
5. The cooling device for the 3D printer-unloader of claim 1, wherein: the heat exchange plate (43) is made of aluminum alloy.
6. The cooling device for the 3D printer-unloader of claim 1, wherein: the heat exchange plate (43) is provided with a fan (44) with a downward air opening.