CN213618380U - Compound heating mechanism of 3D printer - Google Patents

Compound heating mechanism of 3D printer Download PDF

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Publication number
CN213618380U
CN213618380U CN202022336471.3U CN202022336471U CN213618380U CN 213618380 U CN213618380 U CN 213618380U CN 202022336471 U CN202022336471 U CN 202022336471U CN 213618380 U CN213618380 U CN 213618380U
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China
Prior art keywords
heating mechanism
pipe
heat dissipation
liquid
cooling liquid
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Active
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CN202022336471.3U
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Chinese (zh)
Inventor
韩斌
陈俱飞
蔡娟
韩礼丰
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Loongo Co ltd
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Loongo Co ltd
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Priority to CN202022336471.3U priority Critical patent/CN213618380U/en
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Abstract

The utility model provides a composite heating mechanism of a 3D printer, which comprises a heating mechanism arranged in a 3D printing bin and a 3D printing head fixedly arranged at the lower part of the heating mechanism, wherein a feed inlet of the 3D printing head is butted with a wire feeding pipe; the wire material sequentially penetrates through the wire feeding pipe and the heating mechanism and then is led out by the 3D printing head, the upper part of the heating mechanism is connected with the butt joint part through the heat dissipation frame, and the wire feeding pipe penetrates through the heat dissipation frame; a temperature control pipe is arranged in the heating mechanism in a penetrating way and is connected with an external cooling liquid box to lead in cooling liquid. The utility model discloses a compound heating mechanism of 3D printer has convenient infiltration formula temperature regulation function.

Description

Compound heating mechanism of 3D printer
Technical Field
The utility model relates to a 3D prints technical field, concretely relates to compound heating mechanism of 3D printer.
Background
The 3D print head is generally provided with a heating member for heating and a heat sink for dissipating heat from the heating member. Among the prior art, radiating element's radiating efficiency is lower for 3D beats printer head's high temperature region great, and printing material melts too much when 3D beats printer head, appears the drippage easily, and the wire drawing phenomenon and the surface unevenness appear in the object that makes to print out.
In the prior art, the printing nozzle of FDM type has been researched and developed and improved, and patent application number: CN202010168859.9, inventive name: A3D print head heat dissipation assembly and a 3D print head; the 3D printing head heat dissipation assembly comprises a heat dissipation block and a heat dissipation fan; the heat radiation fan is arranged on the heat radiation block; wherein, the radiating block is provided with a radiating cavity, and the air outlet direction of the radiating fan faces the radiating cavity. The invention has the beneficial effects that: the radiating block is provided with the heat dissipation chamber, and radiator fan's air-out direction is towards the heat dissipation chamber for the radiating block's radiating efficiency promotes greatly, prevents to print the material and because the high temperature and the condition that the water clock appears when beating printer head through 3D, and beats printer head to the 3D that needs the long-range transport printing material, can also prevent to appear the circumstances that the pay-off dynamics is not enough and blocks up because printing material high temperature.
In the prior art, the following defects still exist, firstly, the heat radiation is carried out by singly butting and contacting a heating mechanism of a printing head through a peripheral heat radiation component and utilizing the functions of heat conduction and air flow acceleration, the temperature control cannot be better carried out, and only the auxiliary heat radiation function is provided. Secondly, the temperature control performance of the printing head is not well regulated through heat conduction and air flow heat dissipation, air disturbance is easily caused in the printing bin, dust on the heat dissipation fins of the printing head is easily blown off to influence the quality of a printed finished product, and particularly, when the printing head is overheated seriously and needs to be heated urgently, the rotating speed of a fan is increased, and the problem is serious when the heat dissipation performance is high.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a compound heating mechanism of 3D printer, has convenient penetrating type temperature regulation function.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a composite heating mechanism of a 3D printer comprises a heating mechanism arranged in a 3D printing bin and a 3D printing head fixedly arranged at the lower part of the heating mechanism, wherein a feeding hole of the 3D printing head is butted with a wire feeding pipe; the wire material sequentially penetrates through a wire feeding pipe and a heating mechanism and then is led out by the 3D printing head, the upper part of the heating mechanism is connected with the butt joint part through a heat dissipation frame, and the wire feeding pipe penetrates through the heat dissipation frame; a temperature control pipe penetrates through the heating mechanism, and the temperature control pipe is connected with an external cooling liquid box to guide in cooling liquid.
The utility model discloses an in the preferred embodiment, the control by temperature change pipe is including setting up feed liquor pipe and drain pipe on the heating mechanism, be provided with a plurality of heat absorption pipes through linking up the pipe between feed liquor pipe and the drain pipe, the heat absorption pipe is worn to establish in the heating mechanism, adjacent heat absorption pipe passes through linking up the pipe end to end and links up.
In a preferred embodiment of the present invention, the heat dissipation frame comprises oppositely disposed heat dissipation side plates, a plurality of heat dissipation fins are disposed on the heat dissipation side plates at intervals, and heat dissipation fins are fixedly disposed between the heat dissipation side plates and sleeved outside the wire feeding tube; the heat dissipation side plate is correspondingly embedded into the heating mechanism through a plurality of mounting heat conduction columns.
In a preferred embodiment of the present invention, the cooling liquid tank contains therein a cooling liquid.
In a preferred embodiment of the present invention, water or oil is used as the cooling liquid.
In a preferred embodiment of the present invention, a liquid supply tank connected to the liquid inlet pipe and a liquid return tank connected to the liquid outlet pipe are disposed in the cooling liquid tank, and the liquid return tank is further connected to a liquid discharge pipe and a circulation pipe connected to the liquid supply tank; and the liquid inlet pipe is provided with a liquid feeding pump.
The utility model provides a defect that exists in the technical background, the utility model discloses profitable technological effect is:
the utility model discloses a compound heating mechanism of 3D printer can stably send a, the function of even heating mixing liquefaction.
Firstly, through being provided with the supplementary heat dissipation of heat dissipation frame on heating mechanism, in addition through wearing to establish the temperature control pipe in the heat dissipation mechanism, through for the leading-in coolant liquid of temperature control pipe, utilize the coolant liquid to cool down for heating mechanism, adjust the temperature through the intercombination of temperature control pipe and heating mechanism.
Secondly, through being provided with the feed tank of being connected with the feed liquor pipe and the liquid return case of being connected with the drain pipe in the coolant liquid incasement in the coolant liquid, liquid return case and feed tank are connected to rethread circulating pipe, have promoted the cyclic utilization rate of coolant liquid.
And thirdly, auxiliary heat dissipation is carried out by utilizing the heat dissipation fins arranged on the heat dissipation frame and the heat dissipation fins sleeved on the wire feeding pipe.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a composite heating mechanism of a 3D printer according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of a temperature control tube according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view of a coolant tank according to a preferred embodiment of the present invention;
the printing head comprises a printing head body 1-3D, a heating mechanism 2, a heat dissipation frame 3, a heat conduction column 31, a heat dissipation side plate 32, a heat dissipation fin 33, a heat dissipation plate 34, a butt joint part 4, a temperature control pipe 5, a liquid inlet pipe 51, a liquid outlet pipe 52, an engagement pipe 53, a heat absorption pipe 54, a wire feeding pipe 6, a cooling liquid box 7, a heat equalization plate 71, a flow channel 72, a liquid outlet pipe 74, a circulation pipe 75, a liquid injection pipe 76, a liquid feeding pump 77 and a valve 78.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.
It should be noted that, if directional indications (such as up, down, bottom, top, etc.) are involved in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 3, a composite heating mechanism 2 of a 3D printer includes a heating mechanism 2 disposed in a 3D printing chamber, and a 3D printing head 1 fixedly disposed on the heating mechanism 2, wherein a feed port of the 3D printing head 1 is butted with a wire feeding pipe 6; the silk material passes through the silk feeding pipe 6 and the heating mechanism 2 in sequence, is heated and melted into liquid state and then is led out by the 3D printing head 1.
Specifically, heating mechanism 2 is last to be fixed and is provided with heat dissipation frame 3, and 3 upper portions of heat dissipation frame are fixed and are provided with butt joint portion 4, and displacement mechanism links up in through butt joint portion 4 and the 3D print cartridge, and the wire feeder who sets up on the displacement mechanism and the butt joint of wire feeding pipe 6, the leading-in silk material of wire feeding pipe 6.
Specifically, the heat dissipation frame 3 comprises heat dissipation side plates 32 which are oppositely arranged, a plurality of heat dissipation fins 33 are arranged on the heat dissipation side plates 32, and heat dissipation fins 34 which are sleeved outside the wire feeding pipe 6 are fixedly arranged between the heat dissipation side plates 32; the heat-radiating side plate 32 is correspondingly embedded in the heating mechanism 2 through a plurality of mounting heat-conducting columns 31.
More specifically, a temperature control pipe 5 is inserted into the heating mechanism 2, and the temperature control pipe 5 is connected to an external coolant tank 7 to introduce coolant. The temperature control pipe 5 comprises a liquid inlet pipe 51 and a liquid outlet pipe 52 which are arranged on the heating mechanism 2, a plurality of heat absorbing pipes 54 which are connected through connecting pipes 53 are arranged between the liquid inlet pipe 51 and the liquid outlet pipe 52, the heat absorbing pipes 54 are arranged in the heating mechanism 2 in a penetrating way, and the adjacent heat absorbing pipes 54 are connected end to end through the connecting pipes 53. The coolant tank 7 contains coolant. The cooling liquid adopts water or oil. In this embodiment, water with a relatively high specific heat capacity is used as flowing heat-conducting liquid to take away heat energy absorbed by the temperature control pipe 5 and applied to the heating mechanism 2, so as to realize temperature adjustment operation. However, the present invention is not limited to this, and in other embodiments, oil or a cooling liquid made of other materials in the prior art may be used as the cooling liquid flowing in the temperature control pipe 5.
Specifically, a liquid supply tank connected with the liquid inlet pipe 51 and a liquid return tank connected with the liquid outlet pipe 52 are arranged in the cooling liquid tank 7, and the liquid return tank is also connected with a liquid discharge pipe 74 and a circulating pipe 75 connected with the liquid supply tank; the liquid inlet pipe 51 is provided with a liquid feeding pump 77. A liquid feeding pump 77 is also provided at the connection of the circulation pipe 75 and the liquid injection pipe 76 with the liquid supply tank. Furthermore, a plurality of soaking plates 71 are arranged on the upper portion and the lower portion of the inner wall of the liquid return box, the liquid return box is divided into a plurality of storage areas communicated with each other through the soaking plates 71, and S-shaped flow channels 72 communicated with the storage areas are reserved among the soaking plates 71. The soaking and heat dissipation performance of the liquid return tank is improved. Further, a drain pipe 74 is provided on the circulation pipe 75 for discharging the cooling liquid as necessary. Valves 78 are respectively arranged on the liquid discharge pipe 74, the circulating pipe 75, the liquid injection pipe 76, the liquid inlet pipe 51 and the liquid outlet pipe 52.
Example two
On the basis of the first embodiment, the cooling liquid tank 7 is further provided with a plurality of heat dissipation fins 33 outside, so that heat dissipation of the cooling liquid tank 7 is facilitated.
The utility model discloses the theory of operation:
as shown in fig. 1 to 3, the auxiliary heating mechanism 2 is assisted by the heat dissipation frame 3 during normal operation. When the heating temperature of the heating mechanism 2 needs to be regulated, the cooling liquid tank 7 can be opened to introduce cooling liquid into the temperature control pipe 5 for temperature control adjustment, when the temperature is relatively stable in a required range, the cooling liquid supply speed of the cooling liquid tank 7 is relatively slow, and the circulating pipe 75 can be opened to realize circulating flow of the water after heat absorption.
When the temperature exceeds the required range, new cooling water is introduced to enter the liquid supply tank and is mixed with the water introduced into the liquid supply tank by the circulating pipe 75, and then a cold source is provided for the heating mechanism 2, so that the temperature regulation is realized.
When the exceeding range is too large, the supply amount of new cooling water can be increased, or the circulating pipe 75 is directly cut off, water introduced into the liquid return tank is discharged, and the heating mechanism 2 is directly regulated and controlled by the new cooling water, so that the heating mechanism 2 is rapidly cooled.
Above concrete implementation is right the utility model provides a scheme thought concrete support, can not injecing with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change or equivalent change of equivalence that do on this technical scheme basis all still belong to the utility model discloses technical scheme's scope of protection.

Claims (6)

1. A composite heating mechanism of a 3D printer comprises a heating mechanism arranged in a 3D printing bin and a 3D printing head fixedly arranged at the lower part of the heating mechanism, wherein a feeding hole of the 3D printing head is butted with a wire feeding pipe; the silk material is worn to establish in proper order and is passed through behind silk pipe and the heating mechanism by 3D beats printer head and derives its characterized in that: the upper part of the heating mechanism is connected with the butt joint part through a heat dissipation frame, and the wire feeding pipe penetrates through the heat dissipation frame; a temperature control pipe penetrates through the heating mechanism, and the temperature control pipe is connected with an external cooling liquid box to guide in cooling liquid.
2. The composite heating mechanism of the 3D printer according to claim 1, wherein: the temperature control pipe comprises a liquid inlet pipe and a liquid outlet pipe which are arranged on the heating mechanism, a plurality of heat absorption pipes which are connected through connecting pipes are arranged between the liquid inlet pipe and the liquid outlet pipe, the heat absorption pipes are arranged in the heating mechanism in a penetrating mode, and adjacent heat absorption pipes are connected end to end through the connecting pipes.
3. The composite heating mechanism of the 3D printer according to claim 2, wherein: the heat dissipation frame comprises heat dissipation side plates which are oppositely arranged, a plurality of heat dissipation fins are arranged on the heat dissipation side plates at intervals, heat dissipation fins are fixedly arranged between the heat dissipation side plates, and the heat dissipation fins are sleeved outside the wire feeding pipe; the heat dissipation side plate is correspondingly embedded into the heating mechanism through a plurality of mounting heat conduction columns.
4. The composite heating mechanism of the 3D printer according to claim 3, wherein: the cooling liquid box is internally stored with cooling liquid.
5. The composite heating mechanism of the 3D printer according to claim 4, wherein: the cooling liquid adopts water or oil.
6. The composite heating mechanism of the 3D printer according to claim 5, wherein: a liquid supply tank connected with the liquid inlet pipe and a liquid return tank connected with the liquid outlet pipe are arranged in the cooling liquid tank, and the liquid return tank is also connected with a liquid discharge pipe and a circulating pipe connected with the liquid supply tank; and the liquid inlet pipe is provided with a liquid feeding pump.
CN202022336471.3U 2020-10-20 2020-10-20 Compound heating mechanism of 3D printer Active CN213618380U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022336471.3U CN213618380U (en) 2020-10-20 2020-10-20 Compound heating mechanism of 3D printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022336471.3U CN213618380U (en) 2020-10-20 2020-10-20 Compound heating mechanism of 3D printer

Publications (1)

Publication Number Publication Date
CN213618380U true CN213618380U (en) 2021-07-06

Family

ID=76661721

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022336471.3U Active CN213618380U (en) 2020-10-20 2020-10-20 Compound heating mechanism of 3D printer

Country Status (1)

Country Link
CN (1) CN213618380U (en)

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