Printer discharge port cooling piece and printer

Abstract

The utility model discloses a printer discharge port cooling member and a printer, the printer discharge port cooling member comprises a housing, the housing is provided with a main air duct and an auxiliary air duct, the main air duct is provided with an air outlet hole suitable for facing a discharge port and an air inlet hole suitable for being connected with an air source device, and the sectional area of the air outlet hole is smaller than that of the air inlet hole. Due to the fact that the air outlet holes are located in the outer side or the inner side of the auxiliary air channel, surrounding static or low-speed air can be driven to move together through the viscous effect, air enters the auxiliary air channel to assist in cooling of the discharging port, and therefore the discharging port can be cooled conveniently and rapidly. Therefore, the consumables can be cooled and cured in time, and the quality of products is finally guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of printing products, specifically to a printer outlet cooling component and a printer. Background Technology

[0002] As 3D printers become more widespread, more and more printer problems are emerging. Poor cooling at the nozzle outlet of the printer means that the filament cannot be cooled in time during the printing process, resulting in the filament of each layer of the model not curing in time. This eventually leads to surface defects in the model, and the filament of a single layer collapses into the next layer, ultimately affecting product quality and production costs. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems existing in the background art or to provide a material basis for overcoming the above-mentioned defects or problems existing in the background art, and to provide a printer outlet cooling component and a printer.

[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Option 1: A printer outlet cooling component, including...

[0006] The housing includes a main air duct and an auxiliary air duct. The main air duct is located inside the housing, and the auxiliary air duct has an auxiliary air outlet adapted to face the discharge port. The auxiliary air duct passes through the housing along its airflow direction. The main air duct has an air outlet adapted to face the discharge port and an air inlet adapted to connect to an air source device. The cross-sectional area of ​​the air outlet is smaller than that of the air inlet. The air outlet is located outside or inside the auxiliary air duct.

[0007] Option 2, based on Option 1, wherein the air source device is a fan, the fan is installed on the housing, the housing is provided with an air inlet, the air inlet end of the fan is connected to the air inlet, and the air outlet end of the fan is adapted to be connected to the air inlet hole of the main air duct.

[0008] Option 3, based on Option 1, involves having at least two main air ducts, and having the same number of auxiliary air ducts that correspond one-to-one with the number of main air ducts.

[0009] Option 4, based on Option 1, has the air outlet direction tilted downwards relative to the horizontal plane.

[0010] Option 5, based on Option 1, has an annular air outlet that surrounds the auxiliary air duct, and the air passage area of ​​the air outlet gradually decreases along its air passage direction.

[0011] Option 6, based on Option 1, the air outlet includes a plurality of narrow air outlet holes, which are arranged around the auxiliary air outlet.

[0012] Option 7, based on Option 1, the main air duct has a first curved surface extending along its airflow direction.

[0013] Option 8, based on Option 7, further includes an air passageway in the housing, with the air inlet in the air passageway. The first curved surface has a portion protruding towards the air passageway. The air passageway's air passage direction intersects with the main air passageway's air passage direction. The airflow from the air passageway blows towards the portion of the first curved surface protruding towards the air passageway, thus guiding the airflow to a portion further away from the air passageway.

[0014] Option 9, based on Options 1 to 8, provides an auxiliary air duct with a second curved surface extending along its airflow direction.

[0015] Option 10: A printer, including a nozzle and a printer outlet cooling component as described in any one of Options 1 to 9, wherein the nozzle is provided with the outlet.

[0016] As can be seen from the above description of the present invention and its preferred embodiments, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0017] 1. In Scheme 1 and its preferred embodiments, the shell is provided with a main air duct and an auxiliary air duct. The main air duct is provided with an air outlet suitable for facing the discharge port and an air inlet suitable for connecting the air source device. The cross-sectional area of ​​the air outlet is smaller than that of the air inlet so that the air outlet is suitable for accelerating the airflow, so that the airflow flows out at high speed to cool the discharge port and generate negative pressure at the air outlet. Since the air outlet is located outside or inside the auxiliary air duct, it will drive the surrounding still or low-speed air to move together through the viscosity effect, so that the auxiliary air duct starts to take in air to assist in cooling the discharge port, so that the consumable can be cooled and solidified in time, and ultimately ensure the quality of the product.

[0018] 2. In Scheme 2 and its preferred embodiments, the air source device is a fan, which is installed on the housing. The housing has an air inlet, the air inlet end of the fan is connected to the air inlet, and the air outlet end of the fan is adapted to be connected to the air inlet of the main air duct, thereby realizing the supply of air. When the printer outlet cooling component is installed on other parts, it does not need to cooperate with the air inlet ducts on other parts, forming a product that can be used independently, which is convenient for installation.

[0019] 3. In Scheme 3 and its preferred embodiments, the number of main air ducts is at least two, and the number of auxiliary air ducts is the same as the number of main air ducts and corresponds one-to-one, thereby increasing the cooling effect and making the cooling more uniform, preventing product surface quality differences caused by different cooling at different locations.

[0020] 4. In Scheme 4 and its preferred embodiments, the air outlet is tilted downward relative to the horizontal plane so that the position of the air outlet will not affect the product on the printing platform.

[0021] 5. In Scheme 5 and its preferred embodiments, the airflow area of ​​the air outlet gradually decreases along its airflow direction, allowing the air energy to be ejected at high speed. Since the air outlet is annular, it is easy to disperse the airflow, creating a larger area for negative pressure, making it easier for the auxiliary air duct surrounded by the air outlet to receive air.

[0022] 6. In Scheme 6 and its preferred embodiments, the air outlet includes several narrow air outlet holes. The air passage area of ​​the narrow air outlet holes is smaller, allowing the air energy to be ejected at high speed. Furthermore, the arrangement of several narrow air outlet holes around the auxiliary air outlet hole facilitates the dispersion of airflow, resulting in a larger area for forming negative pressure, making it easier for the auxiliary air duct surrounded by the air outlet hole to receive air.

[0023] 7. In Scheme 7 and its preferred embodiments, the main air duct has a first curved surface extending along its airflow direction. The airflow tends to adhere to the adjacent curved surface and flows. The first curved surface causes the high-speed airflow to flow along the first curved surface, forming a stable and uniform airflow, while extending the airflow propagation distance and forming a smooth and concentrated air supply effect.

[0024] 8. In Scheme 8 and its preferred embodiments, the housing is further provided with an air passageway. The first curved surface has a portion protruding in the direction of the air passageway. The air passageway's air passage direction intersects with the main air passageway's air passage direction. The airflow from the air passageway blows toward the portion of the first curved surface protruding in the direction of the air passageway, so that the airflow can be better guided to a portion further away from the air passageway through the curved surface, thereby making the airflow more uniform throughout the main air passageway.

[0025] 9. In Scheme 9 and its preferred embodiments, the auxiliary air duct is provided with a second curved surface extending along its airflow direction. The second curved surface allows the airflow to flow along the second curved surface, forming a stable and uniform airflow. At the same time, it extends the airflow propagation distance, forming a smooth and concentrated air delivery effect. Combined with the first curved surface of the main air duct, the above effects can be improved.

[0026] 10. In Scheme 10 and its preferred embodiments, a printer includes a nozzle and the aforementioned printer outlet cooling component. The nozzle has an outlet and has the beneficial effects brought about by the aforementioned printer outlet cooling component. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a perspective view of part of the printer mechanism in Example 1;

[0029] Figure 2 This is a perspective view of a portion of the printer mechanism in Embodiment 1 from another angle;

[0030] Figure 3 This is a perspective view of the printer outlet cooling component in Example 1;

[0031] Figure 4 This is a perspective view of the first outer shell in Embodiment 1;

[0032] Figure 5 This is a perspective view of the second outer casing and the fan in Embodiment 1;

[0033] Figure 6 This is a top view of the second outer casing and the fan in Embodiment 1;

[0034] Figure 7 This is a schematic diagram of the cooling component at the printer outlet in Example 1;

[0035] Figure 8 This is another structural schematic diagram of the printer outlet cooling component in Embodiment 1;

[0036] Explanation of key figure labels:

[0037] First outer shell 1; locating hole 11; air inlet 12; through hole 13; first channel 14; second outer shell 2; mounting groove 21; threaded post 22; first groove 23; second groove 24; ventilation hole 241; annular shielding wall 242; second channel 2421; air outlet 243; narrow air outlet 2431; connecting strip 244;

[0038] Auxiliary air duct 3; Second curved surface 31; Through air duct 4; Main air duct 5; First curved surface 51; Fan 6; Mounting hole 61;

[0039] Main body 7; Protruding post 71; Nozzle 8; Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0041] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0042] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of the invention.

[0043] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0044] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0045] refer to Figures 1-8 A printer includes a body 7, a nozzle 8, and a printer outlet cooling component. In this embodiment, the printer is a 3D printer.

[0046] The nozzle 8 is mounted on the main body 7 and has a discharge port, which is suitable for discharging adhesive material to achieve 3D printing.

[0047] A printer nozzle cooling component includes a housing and an air source device. In this embodiment, the air source device is a fan 6.

[0048] The housing is mounted on the main body 7. Specifically, in this embodiment, the housing includes a first outer shell 1 and a second outer shell 2.

[0049] refer to Figure 1 , Figure 4The first outer shell 1 has two locking holes 11, which are fitted onto the protrusions 71 on the main body 7. The first outer shell 1 also has an air inlet 12 and two through holes 13 suitable for fasteners to pass through. The first outer shell 1 also has two symmetrically arranged first channels 14, which are the air inlets of the auxiliary air duct 3 (further explanation below).

[0050] refer to Figure 5 , Figure 6 The second outer casing 2 is provided with a mounting groove 21, which is suitable for accommodating the fan 6. A threaded post 22 is provided at the bottom of the mounting groove 21, corresponding to the through hole 13. Fasteners are threadedly connected to the threaded post 22 and abut against the first outer casing 1, thus fixing the first outer casing 1 and the second outer casing 2. It should be understood that this is only one assembly method; the first outer casing 1 and the second outer casing 2 can also be assembled by snap-fit ​​or other methods. The second outer casing 2 is provided with two first grooves 23 and two second grooves 24 with their openings facing upwards. The sidewall of the first groove 23 communicates with the sidewall of the mounting groove 21, so that the air outlet of the fan 6 communicates with the first groove 23. The second groove 24 is provided with a ventilation hole 241 and an annular shielding wall 242. The annular shielding wall 242 is provided with a second channel 2421 that passes through its middle part. The air outlet end of the second channel 2421 is located inside the ventilation hole 241, and the air inlet end of the second channel 2421 is located inside the second groove 24. In this embodiment, the first channel 14 and the second channel 2421 are connected to form an auxiliary air duct 3. Both the first channel 14 and the second channel 2421 are racetrack shaped. The auxiliary air duct 3 is provided with an auxiliary air outlet suitable for facing the discharge port. The auxiliary air duct 3 is provided with a second curved surface 31 (formed by the inner wall of the annular shielding wall 242 and the channel wall of the first channel 14) extending along the air passage direction of the auxiliary air duct 3.

[0051] The ventilation hole 241 is also racetrack-shaped. The gap between the ventilation hole 241 and the outer wall of the annular baffle wall 242 forms an air outlet 243. The air outlet 243 is located outside the auxiliary air duct 3. Preferably, the air outlet 243 is annular and surrounds the auxiliary air duct 3. The air outlet 243 is adapted to face the discharge port. The air outlet direction of the air outlet 243 is inclined downward relative to the horizontal plane, forming an angle with the discharge direction of the discharge port. Preferably, the ventilation hole 241 and the annular baffle wall 242 are connected by several connecting strips 244, so that a part of the air outlet 243 is cut to form several narrow air outlet holes 2431 to achieve the effect of accelerating the airflow. In this embodiment, the connecting strips 244 connect the straight section of the annular baffle wall 242 and the straight section of the ventilation hole 241. Preferably, the air passage area of ​​each narrow air outlet hole 2431 is the same and they are arranged around the auxiliary air outlet. In other embodiments, the airflow area of ​​the air outlet 243 can be gradually reduced along its airflow direction to accelerate the airflow. Furthermore, in other embodiments, the air outlet 243 can be located inside the auxiliary air duct 3, in which case the auxiliary air duct 3 can be configured in a ring shape to increase the airflow volume.

[0052] refer to Figure 3 , Figure 7 , Figure 8 When the second outer shell 2 is connected to the first outer shell 1, the first channel 14 and the second channel 2421 are sequentially connected to form an auxiliary air duct 3. An air passage 4 is formed between the second outer shell 2 and the first groove 23, and the air passage 4 is provided with an air inlet for connecting an air source device. An annular channel is formed between the second outer shell 2, the second groove 24, and the outer wall of the annular baffle wall 242. This annular channel and the air outlet 243 are sequentially connected to form a main air duct 5. The main air duct 5 is located inside the shell, and the cross-sectional area of ​​the air outlet 243 is smaller than the cross-sectional area of ​​the air inlet. In this embodiment, the air passage direction of the auxiliary air duct 3 is parallel to the air passage direction of the main air duct 5. The main air duct 5 has a first curved surface 51 extending along a first direction, which is formed by the outer surface of the annular baffle wall 242 and / or the wall of the ventilation hole 241. The airflow direction of the air passage 4 intersects with the airflow direction of the main air passage 5. The airflow direction of the air passage 4 points to the first curved surface 51 (the part of the first curved surface 51 protruding towards the air passage 4) on the outer surface of the annular shielding wall 242, and the airflow is guided by the first curved surface 51 to the part of the main air passage 5 away from the air passage 4.

[0053] There can be multiple main air ducts 5, and the number of air passage ducts 4 and auxiliary air ducts 3 is the same as that of the main air ducts 5 and they correspond one-to-one. It should be understood that due to the layout of the structure, the shapes of the air passage ducts 4 may be different. In this embodiment, there are two air passage ducts 4, two auxiliary air ducts 3, and two main air ducts 5, and the two auxiliary air ducts 3 are symmetrically arranged, as are the two main air ducts 5.

[0054] refer to Figure 2 , Figure 5The fan 6 is installed in the housing. The fan 6 has a mounting hole 61. The fan 6 is placed in the mounting groove 21 and the mounting hole 61 is fitted onto the threaded post 22. The air outlet of the fan 6 is connected to the first groove 23. After the first housing 1 and the second housing 2 are connected, the air inlet of the fan 6 is connected to the air inlet 12 on the first housing 1. The air outlet of the fan 6, the air passage 4 (with an air inlet hole), and the main air passage 5 (with an air outlet 243) are connected in sequence.

[0055] When in use, after the adhesive material flows out of the nozzle 8, the blower 6 is turned on. The blower 6 starts and the air flows through the air inlet 12, the air inlet end of the blower 6, and the air outlet end of the blower 6 in sequence. The air outlet end of the blower 6 then supplies air to the two air passages 4. The air passages 4 are connected to the main air passage 5 and are ejected at high speed from the air outlet 243 of the main air passage 5. Due to the negative pressure generated at the air outlet end of the air outlet 243, the surrounding still or slow-moving air will move together through the viscosity effect, causing the auxiliary air passage 3 surrounded by the air outlet 243 to start taking in air to help cool the outlet, so that the consumable can be cooled and cured in time, ultimately ensuring the quality of the product.

[0056] Compared with the prior art, this embodiment has the following beneficial effects:

[0057] In one exemplary embodiment, a printer outlet cooling component includes a housing.

[0058] The housing is provided with a main air duct 5 and an auxiliary air duct 3. The main air duct 5 is provided with an air outlet 243 suitable for facing the discharge port and an air inlet suitable for connecting the air source device. The cross-sectional area of ​​the air outlet 243 is smaller than that of the air inlet, so that the air outlet 243 is suitable for accelerating the airflow, so that the airflow speed is high to cool the discharge port and generate negative pressure at the air outlet. Since the air outlet 243 is located outside or inside the auxiliary air duct 3, it will drive the surrounding still or low-speed air to move together through the viscosity effect, so that the auxiliary air duct 3 starts to take in air to assist in cooling the discharge port, so that the consumable can be cooled and solidified in time, ultimately ensuring the quality of the product.

[0059] In one exemplary embodiment, the air source device is a fan 6, which is installed in the housing. The housing has an air inlet 12. The air inlet end of the fan 6 is connected to the air inlet 12, and the air outlet end of the fan 6 is adapted to be connected to the air inlet hole of the main air duct 5, thereby realizing the supply of air. When the printer outlet cooling component is installed on other parts, it does not need to cooperate with the air inlet ducts on other parts, forming a product that can be used independently, which is convenient for installation.

[0060] In one exemplary embodiment, there are at least two main air ducts 5, and the number of auxiliary air ducts 3 is the same as the number of main air ducts 5 and corresponds one-to-one, thereby increasing the cooling effect and making the cooling more uniform, preventing differences in product surface quality caused by different cooling at different locations.

[0061] In one exemplary embodiment, the air outlet 243 is tilted downward relative to the horizontal plane so that the position of the air outlet 243 does not affect the product on the printing platform.

[0062] In one exemplary embodiment, the air outlet 243 has a gradually decreasing airflow area along its airflow direction, allowing the air to be ejected at high speed. Since the air outlet 243 is annular, it is easy to disperse the airflow, creating a larger area for negative pressure, making it easier for the auxiliary air duct 3 surrounded by the air outlet 243 to receive air.

[0063] In one exemplary embodiment, the air outlet 243 includes a plurality of narrow air outlet holes 2431, which have a smaller air passage area, allowing the air energy to be ejected at high speed. Furthermore, the plurality of narrow air outlet holes 2431 are arranged around the auxiliary air outlet, which facilitates the dispersion of airflow and creates a larger area for forming negative pressure, making it easier for the auxiliary air duct 3 surrounded by the air outlet holes 243 to receive air.

[0064] In one exemplary embodiment, the main air duct 5 has a first curved surface 51 extending along its airflow direction. The airflow tends to adhere to the adjacent curved surface and flows. The first curved surface 51 causes the high-speed airflow to flow along the first curved surface 51, forming a stable and uniform airflow, while extending the airflow propagation distance and forming a smooth and concentrated air delivery effect.

[0065] In one exemplary embodiment, the housing is further provided with an air passage 4, and the first curved surface 51 has a portion protruding in the direction of the air passage 4. The air passage direction of the air passage 4 intersects with the air passage direction of the main air passage 5. The airflow of the air passage 4 blows toward the portion of the first curved surface 51 protruding in the direction of the air passage 4, so as to better guide the airflow to a portion further away from the air passage 4 through the curved surface, thereby making the airflow more uniform in all parts of the main air passage 5.

[0066] In one exemplary embodiment, the auxiliary air duct 3 is provided with a second curved surface 31 extending along its airflow direction. The second curved surface 31 allows the airflow to flow along the second curved surface 31, forming a stable and uniform airflow. At the same time, it extends the airflow propagation distance, forming a smooth and concentrated air delivery effect. Combined with the first curved surface 51 of the main air duct 5, the above effects can be improved.

[0067] In one exemplary embodiment, a printer includes a nozzle 8 and the aforementioned printer outlet cooling component. The nozzle 8 has an outlet and the beneficial effects provided by the aforementioned printer outlet cooling component.

[0068] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A printer exit port cooling member characterized by: The application relates to a printer outlet cooling device. The shell is provided with main air ducts (5) arranged in the shell and auxiliary air ducts (3) provided with auxiliary air outlets suitable for being directed towards the outlet and penetrating the shell along the air passing direction; the main air ducts (5) are provided with air outlets (243) suitable for being directed towards the outlet and air inlets suitable for being connected with air source devices; the sectional area of the air outlets (243) is smaller than that of the air inlets; the air outlets (243) are located outside or inside the auxiliary air ducts (3).

2. A printer exhaust cooling member as claimed in claim 1, wherein: The air source device is a fan (6) arranged on the shell and provided with an air inlet (12) in communication with the air inlet end of the fan (6); the air outlet end of the fan (6) is suitable for being in communication with the air inlets of the main air ducts (5).

3. A printer exhaust cooling member as claimed in claim 1 wherein: The number of the main air ducts (5) is at least two, and the number of the auxiliary air ducts (3) is the same as that of the main air ducts (5) and corresponds to the main air ducts (5) one by one.

4. A printer exhaust cooling member as claimed in claim 1, wherein: The air outlet direction of the air outlets (243) is downwardly inclined relative to the horizontal plane.

5. A printer exhaust cooling member as claimed in claim 1, wherein: The air outlets (243) are annular and surround the auxiliary air ducts (3); the air passing area of the air outlets (243) gradually decreases along the air passing direction.

6. A printer exhaust cooling member as claimed in claim 1, wherein: The air outlets (243) comprise a plurality of air outlet narrow holes (2431) arranged around the auxiliary air outlets.

7. A printer exhaust cooling member as claimed in claim 1 wherein: The main air ducts (5) have first curved surfaces (51) extending along the air passing direction.

8. A printer exhaust cooling member as claimed in claim 7, wherein: The shell is further provided with air passing ducts (4) provided with the air inlets; the first curved surfaces (51) have parts protruding towards the air passing ducts (4); the air passing direction of the air passing ducts (4) intersects with the air passing direction of the main air ducts (5); the air flow of the air passing ducts (4) blows towards the parts of the first curved surfaces (51) protruding towards the air passing ducts (4) so as to guide the air flow to be further away from the air passing ducts (4).

9. A printer outlet cooling member as claimed in any one of claims 1 to 8 wherein: The auxiliary air ducts (3) are provided with second curved surfaces (31) extending along the air passing direction.

10. A printer characterized by: The application relates to a printer outlet cooling device.

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