CN215302977U

CN215302977U - 3D printer ejection of compact refrigeration structure

Info

Publication number: CN215302977U
Application number: CN202120549933.1U
Authority: CN
Inventors: 刘辉林; 唐京科; 陈春; 敖丹军; 张海洋
Original assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Current assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-12-28
Anticipated expiration: 2031-03-17

Abstract

The utility model discloses a 3D printer discharging refrigeration structure, and belongs to the technical field of 3D printing. 3D printer ejection of compact refrigeration structure includes: the discharging end of the extruding mechanism is provided with a nozzle; the refrigeration air injection block is arranged on the periphery of the nozzle and can inject cold air to the discharge area of the nozzle; the refrigeration device comprises a refrigeration block, an air pump, a refrigeration air-jet block and a compressor, wherein an air flow channel is arranged in the refrigeration block, one end of the air flow channel is connected with the air pump, and the other end of the air flow channel is connected with the refrigeration air-jet block; the refrigeration piece, the refrigeration piece is including refrigeration face and heat conduction face, the refrigeration piece is located on the refrigeration face, so that the refrigeration piece is right the air current refrigeration in the refrigeration piece. The utility model discloses a 3D printer ejection of compact refrigeration structure that refrigeration speed is fast, the modularization degree is high is provided.

Description

3D printer ejection of compact refrigeration structure

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a 3D printer discharging refrigeration structure.

Background

Under the promotion of the intellectualization of computer digital technology, the application field of 3D printing technology is wider and wider, and 3D printing also has application in the food industry field, such as chocolate printers. The existing chocolate 3D printer has no cooling structure, the printed chocolate model is slow in cooling speed and difficult to form, the model is cooled by indoor normal-temperature air generally, and particularly, when cocoa butter chocolate is printed and formed, the chocolate model is more difficult to form and difficult to stack and form.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a 3D printer discharging refrigeration structure which is high in refrigeration speed and high in modularization degree.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a 3D printer ejection of compact refrigeration structure, includes:

the discharging end of the extruding mechanism is provided with a nozzle;

the refrigeration air injection block is arranged on the periphery of the nozzle and can inject cold air to the discharge area of the nozzle;

the refrigeration device comprises a refrigeration block, an air pump, a refrigeration air-jet block and a compressor, wherein an air flow channel is arranged in the refrigeration block, one end of the air flow channel is connected with the air pump, and the other end of the air flow channel is connected with the refrigeration air-jet block;

the refrigeration piece, the refrigeration piece is including refrigeration face and heat conduction face, the refrigeration piece is located on the refrigeration face, so that the refrigeration piece is right the air current refrigeration in the refrigeration piece.

As above-mentioned 3D printer ejection of compact refrigeration structure's alternative, the refrigeration gas injection piece is annular structure, the bottom of refrigeration gas injection piece sets up a plurality of air jets, the air jet is followed the circumference evenly distributed of refrigeration gas injection piece.

As an alternative scheme of the 3D printer discharging and refrigerating structure, a first air inlet is formed in the top of the refrigerating air injection block and connected with the refrigerating block.

As an alternative scheme of the 3D printer discharging refrigeration structure, the refrigeration block is a copper refrigeration block.

As an alternative scheme of the 3D printer discharging refrigeration structure, the airflow channel is of a roundabout structure so as to increase the contact area of the airflow and the refrigeration block.

As above-mentioned 3D printer ejection of compact refrigeration structure's alternative, 3D printer ejection of compact refrigeration structure still includes:

and the heat dissipation assembly is arranged corresponding to the heat conduction surface so as to dissipate heat of the heat conduction surface.

As above-mentioned 3D printer ejection of compact refrigeration structure's alternative, radiator unit includes fin, fin dead lever and heat transfer piece, the fin is worn to locate on the fin dead lever, the heat transfer piece is located the top of fin dead lever, the refrigeration piece is located on the heat transfer piece.

As the optional scheme of the 3D printer ejection of compact refrigeration structure, the fin is a plurality of, the fin dead lever is the shape of falling U, and the both ends of same fin dead lever penetrate respectively in two adjacent fins.

the mounting panel, radiator unit the refrigeration piece reaches the air pump is all located on the mounting panel.

As an alternative scheme of the 3D printer discharging refrigeration structure, joints are arranged at the two ends of the airflow channel of the refrigeration block and at the first air inlet of the refrigeration air injection block.

The 3D printer discharging refrigeration structure of the utility model refrigerates the refrigeration block through the refrigeration surface of the refrigeration piece, the air current in the air current runner of the refrigeration block is cooled, the cooled cold air current flows into the refrigeration air injection block, the refrigeration air injection block blows the cold air current to the discharging area below the nozzle of the 3D printer, the temperature of the material (such as chocolate) is higher after being sprayed out from the nozzle, when the high-temperature material falls on a printing platform to form a model, the model needs to be rapidly cooled, so as to rapidly shape the model, in the utility model, the cooling speed of the model is accelerated by spraying cold air to the discharging area below the nozzle through the refrigeration air injection block, so that the model is rapidly cooled and shaped, thereby avoiding the model from deforming, and enabling the material to be easily shaped, the 3D printer discharging refrigeration structure of the utility model has the advantages of high refrigeration speed, easy modularization realization, suitability for different models, simple structure and convenient installation, the cost is low.

Drawings

FIG. 1 is a schematic structural diagram of a discharge refrigeration structure of a 3D printer according to the present invention;

FIG. 2 is a schematic view of a first partially exploded view of the 3D printer outfeed refrigeration arrangement of the present invention;

FIG. 3 is a schematic diagram of a second partially exploded view of the 3D printer discharge refrigeration structure of the present invention;

fig. 4 is a perspective view of the refrigeration block of the present invention.

In the figure:

100. a 3D printer discharge refrigeration structure; 101. mounting a plate; 102. a joint; 103. a plug;

110. an extrusion mechanism; 111. a nozzle;

120. refrigerating the air injection block; 121. an air jet; 122. a first air inlet;

130. a refrigeration block; 131. an airflow channel; 132. a second air inlet; 133. an air outlet;

140. a refrigeration plate;

150. an air pump;

160. a heat dissipating component; 161. a heat sink; 162. a heat sink fixing rod; 163. a heat transfer block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

The utility model provides a 3D printer discharging refrigeration structure, which is applied to a chocolate printer in the embodiment of the utility model, and can also be applied to other 3D printers in other embodiments without limitation.

Referring to fig. 1 to 3, the 3D printer discharging refrigeration structure 100 includes an extrusion mechanism 110, a refrigeration air-jet block 120, a refrigeration block 130, a refrigeration sheet 140, and an air pump 150.

The extrusion mechanism 110 is used for extruding materials in the 3D printer, a nozzle 111 is arranged at the discharging end of the extrusion mechanism 110, and the materials are extruded from the nozzle 111 to form a printing model. As shown in fig. 1 and 2, the cooling air-jet block 120 is disposed at the outer periphery of the nozzle 111, and can jet cooling air to the discharge area of the nozzle 111 to rapidly cool and mold the printed mold. Specifically, when the material is not sprayed out of the nozzle 111 in the 3D printer, the material is heated to a higher temperature, so that the material is conveniently sprayed out of the nozzle 111, a preset shape is formed on the printing platform, and after the material is sprayed out of the nozzle 111 and forms a printing model on the printing platform, the formed material needs to be rapidly cooled, so that the model is rapidly shaped, and printing failure caused by deformation of the model is avoided. The direction and the angle of the cooling air sprayed by the refrigeration air spraying block 120 can be specifically set as required, and if the air spraying direction of the refrigeration air spraying block 120 needs to be changed, the inclination angle of the air spraying port 121 on the refrigeration air spraying block 120 only needs to be changed. Referring to fig. 4, an air flow passage 131 is disposed in the refrigeration block 130, and one end of the air flow passage 131 is connected to the air pump 150, and the other end is connected to the refrigeration air-jet block 120. Refrigeration pill 140 includes a refrigeration side and a thermally conductive side, and refrigeration block 130 is disposed on the refrigeration side of refrigeration pill 140 such that refrigeration pill 140 refrigerates the airflow within refrigeration block 130. As shown in fig. 1 and 3, the top surface of the refrigeration sheet 140 is a refrigeration surface, the refrigeration block 130 is attached to the refrigeration surface, and the bottom surface of the refrigeration sheet 140 is a heating surface. The refrigeration principle of the refrigeration plate 140 is prior art and will not be described in detail herein. When the 3D printer discharging refrigeration structure 100 works, the air pump 150 pumps air into the airflow channel 131 of the refrigeration block 130, the refrigeration sheet 140 cools air in the refrigeration block 130, and the cold air flows from the refrigeration block 130 to the refrigeration air injection block 120 and is blown to the discharging area below the nozzle 111 by the refrigeration air injection block 120. The 3D printer discharging refrigeration structure 100 is high in refrigeration speed, the air pump 150, the refrigeration block 130 and the refrigeration piece 140 are easy to modularize, the refrigeration air injection block 120 can be installed at the position of the nozzle 111 of different machine types only by replacing the refrigeration air injection block 120 with different sizes, the 3D printer discharging refrigeration structure 100 can be suitable for different machine types, and the 3D printer discharging refrigeration structure is simple in structure, convenient to install and low in cost.

Referring to fig. 1 and 3, the 3D printer discharging refrigeration structure 100 further includes a heat dissipation assembly 160, and the heat dissipation assembly 160 is disposed corresponding to the heat conduction surface of the refrigeration sheet 140, so that the heat dissipation assembly 160 dissipates heat from the heat conduction surface, thereby preventing heat from being concentrated and unable to be dissipated, and enhancing the refrigeration effect.

The heat dissipation structure of the heat dissipation assembly 160 may be a heat sink, or may be another heat dissipation structure, such as a heat dissipation fan, or a combination of the heat sink and the heat dissipation fan. In the embodiment of the utility model, a radiating mode of the radiating fins is adopted.

Referring to fig. 3, the 3D printer discharging refrigeration structure 100 further includes a mounting plate 101, and the heat dissipation assembly 160, the refrigeration sheet 140, the refrigeration block 130 and the air pump 150 are all mounted on the mounting plate 101, as shown in fig. 1, the refrigeration air-jet block 120 is mounted on the nozzle 111, and the refrigeration air-jet block 120 is connected to the refrigeration block 130 through an air pipe. Above structure for radiator unit 160, refrigeration piece 140, refrigeration piece 130 and air pump 150 all install and form a module on mounting panel 101, and integrated degree is high, avoids the part too scattered. After the heat dissipation assembly 160, the refrigeration sheet 140, the refrigeration block 130 and the air pump 150 form a module, only different refrigeration air injection blocks 120 need to be replaced for different models.

Referring to fig. 2, the refrigeration air injection block 120 is an annular structure, the refrigeration air injection block 120 is sleeved around the nozzle 111, the bottom of the refrigeration air injection block 120 is provided with a plurality of air injection ports 121, the air injection ports 121 are uniformly distributed along the circumferential direction of the refrigeration air injection block 120, so that the refrigeration air injection block 120 uniformly blows air towards the discharging area below the nozzle 111, and the problem that the refrigeration area is low due to blowing air through a single air injection port 121, so that the refrigeration effect is affected, and the risk of an end cap is increased is avoided. Preferably, the inner diameter of the refrigerating air-jet block 120 is substantially the same as the diameter of the nozzle 111, so that the inner wall of the refrigerating air-jet block 120 is relatively attached to the surface of the nozzle 111, and the installation is convenient.

Referring to fig. 1, a first air inlet 122 is disposed at the top of the refrigeration air-jet block 120, and the first air inlet 122 is connected to the refrigeration block 130, so that the cold air in the refrigeration block 130 enters the refrigeration air-jet block 120 through the first air inlet 122 and is then ejected from an air-jet port 121 at the bottom of the refrigeration air-jet block 120. The arrangement of the air pipes is convenient for arranging the first air inlet 122 at the top of the refrigeration air injection block 120, so that the air pipes connected with the first air inlet 122 are positioned above the refrigeration air injection block 120, the air injection of the air injection port 121 at the bottom of the refrigeration air injection block 120 is not blocked, and the refrigeration effect is ensured.

As shown in fig. 1, joints 102 are disposed at both ends of the airflow channel 131 of the refrigeration block 130 and at the first air inlet 122 of the refrigeration air-jet block 120. Specifically, referring to fig. 1, 3 and 4, two ends of the airflow channel 131 of the refrigeration block 130 are respectively a second air inlet 132 and an air outlet 133 of the refrigeration block 130, the joint 102 at the second air inlet 132 is connected to the air pump 150 through an air pipe, and the joint 102 at the air outlet 133 is connected to the joint 102 at the first air inlet 122 of the refrigeration air-jet block 120 through an air pipe.

Preferably, the air pump 150 is an electric air pump, and the electric air pump can provide a stable air source to form a stable cool air output.

Referring to fig. 4, the airflow channel 131 of the refrigeration block 130 is a winding structure, and the airflow channel 131 bends back and forth in the refrigeration block 130 to increase the contact area between the airflow and the refrigeration block 130 and improve the refrigeration efficiency. It will be appreciated that plugs 103 may be provided on the cooling block 130 as needed to close the airflow passages 131.

In the embodiment of the present invention, the refrigeration piece 140 performs refrigeration on the refrigeration block 130 in a heat conduction manner, as shown in fig. 1 and fig. 3, the refrigeration block 130 directly contacts with the refrigeration surface of the refrigeration piece 140, and the refrigeration block 130 is cooled by a contact heat conduction manner, so that the airflow in the refrigeration block 130 is cooled to form cold air. Preferably, the refrigeration block 130 is a copper refrigeration block, so that the heat conduction effect of copper is higher, and the refrigeration efficiency can be improved.

Referring to fig. 3, the heat sink assembly 160 includes a heat sink 161, a heat sink fixing rod 162 and a heat transfer block 163. The heat sink 161 is inserted into the heat sink fixing rod 162 to fix the heat sink 161. Heat transfer block 163 is disposed on the top of the heat-radiating fin fixing rod 162, the heat transfer block 163 serves to transfer heat of the refrigerating sheet 140 to the heat radiating fin 161, and the refrigerating sheet 140 is disposed on the heat transfer block 163. The heat conducting surface of the cooling fin 140 is attached to the heat transfer block 163, and the heat of the heat conducting surface of the cooling fin 140 is conducted to the heat transfer block 163, and then conducted from the heat transfer block 163 to the heat sink fixing rod 162 and further conducted to the heat sink 161. The provision of the fin fixing bars 162 facilitates the installation and fixing of the fins 161 and the heat transfer block 163.

Preferably, a plurality of heat dissipation fins 161 are provided to improve the heat dissipation effect. As shown in fig. 3, the fin fixing rod 162 has an inverted U shape, two ends of the same fin fixing rod 162 penetrate two adjacent fins 161, respectively, and the heat transfer block 163 is disposed on the top of the fin fixing rod 162. The top of the inverted U-shaped fin fixing bar 162 is suitable for mounting and fixing the heat transfer block 163.

The number of the heat dissipation fins 161 shown in fig. 3 is two, and in other embodiments, the number of the heat dissipation fins 161 may be increased or decreased as needed, for example, three, four, five, six, etc., without limitation.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The meaning of the above terms in the present invention can be understood by those of ordinary skill in the art as the case may be.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature "under" a second feature includes a first feature that is directly under and obliquely under the second feature, or that simply means that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", "front", "rear", and the like are used in the orientations and positional relationships shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the designated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a 3D printer ejection of compact refrigeration structure which characterized in that includes:

the extruding device comprises an extruding mechanism (110), wherein a nozzle (111) is arranged at the discharging end of the extruding mechanism (110);

a refrigeration air injection block (120) which is arranged on the periphery of the nozzle (111) and can inject cold air to the discharge area of the nozzle (111);

the refrigerator comprises a refrigeration block (130), wherein an airflow channel (131) is arranged in the refrigeration block (130), one end of the airflow channel (131) is connected with an air pump (150), and the other end of the airflow channel is connected with a refrigeration air injection block (120);

refrigeration piece (140), refrigeration piece (140) are including refrigeration face and heat conduction face, refrigeration piece (130) are located on the refrigeration face, so that refrigeration piece (140) are right the air current refrigeration in refrigeration piece (130).

2. The 3D printer discharging refrigeration structure according to claim 1, wherein the refrigeration gas injection block (120) is an annular structure, a plurality of gas injection ports (121) are arranged at the bottom of the refrigeration gas injection block (120), and the gas injection ports (121) are uniformly distributed along the circumferential direction of the refrigeration gas injection block (120).

3. The 3D printer discharging refrigeration structure according to claim 2, characterized in that a first air inlet (122) is arranged on the top of the refrigeration air injection block (120), and the first air inlet (122) is connected with the refrigeration block (130).

4. 3D printer ejection of compact refrigeration structure of any one of claims 1 to 3, characterized in that the refrigeration block (130) is a copper refrigeration block.

5. The 3D printer discharging refrigeration structure according to any one of claims 1 to 3, characterized in that the airflow channel (131) is a winding structure to increase the contact area of the airflow and the refrigeration block (130).

6. The 3D printer outfeed refrigeration structure of any one of claims 1 to 3, further comprising:

the heat dissipation assembly (160), heat dissipation assembly (160) with the heat conduction face corresponds the setting to dispel the heat to the heat conduction face.

7. The 3D printer discharging refrigeration structure according to claim 6, wherein the heat dissipation assembly (160) comprises a heat dissipation fin (161), a heat dissipation fin fixing rod (162) and a heat transfer block (163), the heat dissipation fin (161) is arranged on the heat dissipation fin fixing rod (162) in a penetrating manner, the heat transfer block (163) is arranged at the top of the heat dissipation fin fixing rod (162), and the refrigeration fin (140) is arranged on the heat transfer block (163).

8. The 3D printer discharging refrigeration structure according to claim 7, wherein the number of the heat dissipation fins (161) is multiple, the heat dissipation fin fixing rods (162) are in an inverted U shape, and two ends of the same heat dissipation fin fixing rod (162) penetrate into two adjacent heat dissipation fins (161) respectively.

9. The 3D printer ejection of compact refrigeration structure of claim 6, further comprising:

mounting panel (101), radiator unit (160), refrigeration piece (140) refrigeration piece (130) and air pump (150) all locate on mounting panel (101).

10. The 3D printer discharging refrigeration structure according to claim 3, wherein joints (102) are arranged at two ends of the airflow channel (131) of the refrigeration block (130) and the first air inlet (122) of the refrigeration air injection block (120).