3D printing consumable storage box with heating function

Abstract

The utility model discloses a 3D printing consumable storage box with a heating function. The 3D printing consumable storage box with the heating function further comprises a heating device. A through hole is formed in the rear wall of the upper cover; the heating device comprises a base, an air inlet assembly and a heating assembly. The base is inserted into the through hole, an air inlet is formed in the rear end of the base, and the front end of the base is open. The air inlet assembly comprises a cover plate; the cover plate is mounted in the air inlet; the heating assembly comprises an air inlet fan, an electric heater and a fixing plate. The fixing plate is installed at the front end of the base, an air outlet hole is reserved between the bottom edge of the fixing plate and the bottom edge of the front end of the base, and the air outlet hole downwards faces the gap between the peripheral face of the consumable reel and the inner wall of the storage cavity in the tangential direction; the air inlet fan and the electric heater are installed on the rear plate face of the fixing plate, an air outlet of the air inlet fan is communicated with the air inlet end of the electric heater, the air outlet end of the electric heater faces downwards and is communicated with the air outlet hole, and the electric heater guides and heats air entering from the air inlet hole and heats the consumables.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing technical field especially relates to a 3D printing consumptive material storage box with heating function. BACKGROUND

[0002] Fused deposition is the most popular 3D printing process in the prior art, and the consumptive material used is a thermoplastic wire wound on the outer periphery of a circular reel.

[0003] In the prior art, if the consumptive material is exposed to the air at room temperature, it is easy to get wet, and the moisture content in the wet consumptive material is high, which can cause the consumptive material to become brittle when heated, and the consumptive material is prone to breakage.

[0004] The consumptive material heating device in the prior art is installed below the storage box in the printing chamber of the 3D printer. Since the position of the heating device is fixed and the hot air outlet of the heating device faces the discharge port of the storage box, only the consumptive material near the discharge port can be heated, which can cause the temperature of the consumptive material near the discharge port to be too high, and the temperature of the remaining parts of the consumptive material in the storage box to be too low due to insufficient heating, thereby affecting the quality of 3D printing. SUMMARY

[0005] In view of the above problems, the utility model aims to provide a 3D printing consumptive material storage box with heating function to solve the problem of insufficient heating of part of the consumptive material.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A 3D printing consumptive material storage box with heating function comprises a bottom box and an upper cover, at least one storage cavity for placing a consumptive material reel is arranged in the bottom box, a discharge port is arranged on the front wall of the storage cavity, and a heating device is further included; a through hole is arranged on the rear wall of the upper cover;

[0008] The heating device comprises a base, an air inlet assembly and a heating assembly;

[0009] The base is inserted into the through hole, the rear end of the base is exposed to the rear of the upper cover, an air inlet hole is arranged on the rear end of the base, and the front end of the base is open;

[0010] The air inlet assembly comprises a cover plate; the heating assembly comprises an air inlet fan, an electric heater and a fixing plate;

[0011] The cover plate is installed on the air inlet hole in a lifting manner; the fixing plate is installed on the front end of the base and covers the opening, an air outlet hole is left between the bottom edge of the fixing plate and the bottom edge of the front end of the base, and the air outlet hole is downwardly directed along a tangent direction towards the gap between the outer periphery of the consumptive material reel and the inner wall of the storage cavity;

[0012] The air inlet fan and the electric heater are installed adjacently on the back plate surface of the fixed plate, the air outlet of the air inlet fan is communicated with the air inlet end of the electric heater, and the air outlet end of the electric heater faces downward and is communicated with the air outlet hole.

[0013] Further, the air outlet hole is arranged above the rear wall of the storage cavity, and the air outlet hole and the discharge port are connected by the downwardly recessed storage cavity.

[0014] Further, gaps are left between the bottom box, the upper cover and the outer circumferential surface of the consumable reel.

[0015] Further, the heating assembly further comprises a fan cover and an auxiliary fan.

[0016] The fan cover is hollow, is clamped on the front plate surface of the fixed plate, the auxiliary fan is installed in the top port of the fan cover, and a gap is left between the bottom edge of the fan cover and the front plate surface of the fixed plate.

[0017] Two corner portions of the upper end of the fixed plate are provided with exhaust holes.

[0018] The exhaust holes penetrate the plate surface of the fixed plate, and the exhaust holes are located beside the fan cover.

[0019] Further, the fixed plate is further provided with a drainage groove.

[0020] The drainage groove is recessed from back to front on the back plate surface of the fixed plate and extends from top to bottom, the upper end of the drainage groove abuts against the bottom edge of the fan cover, and the gap between the bottom edge of the fan cover, the front end surface of the fan cover and the front plate surface of the fixed plate forms the air outlet gap.

[0021] The gap between the bottom groove edge of the drainage groove and the front end bottom edge of the base forms the air outlet hole.

[0022] Further, the air inlet assembly further comprises a sealing ring.

[0023] The sealing ring is installed on the bottom surface of the cover plate and surrounds the inner side of the edge of the cover plate.

[0024] Further, the air inlet assembly further comprises a guide rod, a motor and a gear.

[0025] The upper end of the guide rod is connected to the bottom surface of the cover plate, the lower end of the guide rod extends downward, and the side surface of the guide rod is provided with a gear rack.

[0026] The motor is installed at the back of the base, the gear is installed at the output end of the motor, and the gear is engaged with the gear rack.

[0027] Further, the base is also provided with a receiving groove;

[0028] The receiving groove is surrounded by the inner side of the edge of the air inlet hole, and the receiving groove is used for receiving the sealing ring;

[0029] The left and right side edges of the air inlet hole are provided with exhaust grooves;

[0030] The exhaust grooves extend in the front-rear direction, and the front ends of the exhaust grooves are communicated with the exhaust through holes;

[0031] The exhaust grooves are recessed and located on the inner side of the receiving groove.

[0032] Further, the left and right sides of the bottom surface of the cover plate are provided with lower edge portions;

[0033] The upper end of the lower edge portion is connected with the bottom surface of the cover plate, and the lower end of the lower edge portion extends downward;

[0034] The outer side of the lower edge portion abuts against the inner side of the edge of the air inlet hole, and the lower edge portion shields the inner side of the exhaust groove.

[0035] Further, the base is also provided with an inner groove;

[0036] The inner groove is located at the front end bottom edge of the base and is recessed backward; the inner groove and the slot of the drainage groove form the air outlet hole.

[0037] The beneficial effects of the technical scheme of the utility model are that the 3D printing consumable storage box with heating function, the air inlet fan and the electric heater in the heating assembly can guide and heat the air entering from the air inlet hole, the hot air flow formed is discharged from the air outlet hole and blows on the surface of the consumable roll material which is a circular surface in a tangent direction, thereby heating the consumable and keeping the consumable dry, and the quality of printing can be guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a structural schematic view of an embodiment of the 3D printing consumable storage box with heating function of the utility model;

[0039] Figure 2 It is a structural schematic view of an embodiment of the heating device;

[0040] Figure 3 It is a parts schematic view of an embodiment of the heating assembly;

[0041] Figure 4A schematic view of parts of an embodiment of the air inlet assembly;

[0042] Figure 5 A schematic view of the structure of an embodiment of the base;

[0043] Wherein: the bottom box 1; the heating device 2; the consumable reel 3; the upper cover 4; the storage cavity 11; the base 21; the air inlet assembly 22; the heating assembly 23; the through hole 41; the discharge port 111; the air inlet hole 211; the exhaust groove 212; the open mouth 213; the receiving groove 214; the inner groove 215; the cover plate 221; the sealing ring 222; the guide rod 223; the motor 224; the gear 225; the flow fan 231; the electric heater 232; the fixed plate 233; the fan cover 234; the auxiliary fan 235; the lower edge 2211; the exhaust through hole 2331; the rack 2331; the drainage groove 2332. DETAILED DESCRIPTION

[0044] The technical scheme of the present application will be further described below in conjunction with the accompanying drawings. Figures 1-5 The technical scheme of the present application will be further described below in conjunction with the accompanying drawings.

[0045] The accompanying drawings are only used for illustrative purposes, and should not be understood as limiting the patent; in order to better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions may be omitted.

[0046] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be said that the two elements are connected internally. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] A 3D printing consumable storage box with heating function, comprising a bottom box 1 and an upper cover 4, at least one storage cavity 11 for placing a consumable reel 3 is arranged in the bottom box 1, the front wall of the storage cavity 11 is provided with a discharge port 111, and the upper cover 4 is further provided with a through hole 41 in the rear wall thereof;

[0048] The heating device 2 comprises a base 21, an air inlet assembly 22 and a heating assembly 23;

[0049] The base 21 is inserted into the through hole 41, the rear end of the base 21 is exposed to the rear of the upper cover 4, the rear end of the base 21 is provided with an air inlet hole 211, and the front end of the base 21 is an open mouth 213;

[0050] The air inlet assembly 22 comprises a cover plate 221, and the heating assembly 23 comprises an air inlet fan 231, an electric heater 232 and a fixing plate 233.

[0051] The cover plate 221 is installed on the air inlet hole 211 in a lifting manner, the fixing plate 233 is installed on the front end of the base 21 and covers the opening 213, and a gas outlet hole is formed between the bottom edge of the fixing plate 233 and the bottom edge of the front end of the base 21, and the gas outlet hole is downwardly directed along a tangent direction towards the gap between the outer circumferential surface of the consumable reel 3 and the inner wall of the storage cavity 11.

[0052] The air inlet fan 231 and the electric heater 232 are installed on the rear plate surface of the fixing plate 233 in an up-down manner, the air outlet of the air inlet fan 231 is communicated with the air inlet end of the electric heater 232, and the air outlet end of the electric heater 232 is downwardly directed and communicated with the gas outlet hole.

[0053] As Figure 1 As shown in the structure diagram of one embodiment of the 3D printing consumable storage box with a heating function, the storage box comprises a bottom box 1 and an upper cover 4, a plurality of storage cavities 11 are arranged in the bottom box 1, the front wall of the storage cavity 11 is provided with a discharge port 111, the consumable reel 3 is arranged in the storage cavity 11, and the rear wall of the upper cover 4 is provided with a through hole 41 for mounting the base 21.

[0054] Before the 3D printer works, the cover plate 221 is lifted, the air inlet fan 231 and the electric heater 232 in the heating assembly 23 are started, the air entering from the air inlet hole 211 is guided by the air inlet fan 231 and enters the electric heater 232, the heated air forms a hot air flow and is discharged from the air outlet end of the electric heater 232, the hot air flow is downwardly directed along a tangent direction towards the surface of the consumable close to the rear wall of the storage cavity 11 through the gas outlet hole, and the hot air flow flows along the gap between the outer circumferential surface of the consumable reel 3 and the inner wall of the storage cavity 11; the hot air flow blowing on the circumferential surface of the consumable reel close to the rear wall of the storage cavity 11 along a tangent direction and flowing along the gap between the outer circumferential surface of the consumable reel 3 and the inner wall of the storage cavity 11 can not only heat the consumable, but also will not cause the temperature of the local position of the consumable to be too high, and has a more uniform heating effect; when the consumable is heated for a period of time, the 3D printer is started, and the quality of the printing can be guaranteed.

[0055] The air inlet fan 231 is preferably a vortex fan, and the electric heater 232 is preferably a PTC heater.

[0056] Further, the gas outlet hole is arranged above the rear wall of the storage cavity 11, and the gas outlet hole and the discharge port 11 form a downwardly recessed storage cavity 11.

[0057] As Figure 1As shown, the air outlet is arranged above the rear wall of the storage cavity 11, between the air outlet and the discharge port 111. The material roll can be blocked, so that the hot air flow discharged from the air outlet will not flow out of the discharge port 111.

[0058] Further, the bottom box 1 and the upper cover 4 are spaced apart from the outer circumferential surface of the material roll 3.

[0059] The hot air flow for heating the material circulates along the gap between the bottom box 1, the upper cover 4 and the outer circumferential surface of the material roll 3.

[0060] Further, the heating assembly 23 further comprises a fan cover 234 and an auxiliary fan 235.

[0061] The fan cover 234 is hollow; the fan cover 234 is clamped to the front plate surface of the fixed plate 233; the auxiliary fan 235 is installed in the top port of the fan cover 234; the bottom edge of the fan cover 234 and the front plate surface of the fixed plate 233 are spaced apart to form an air outlet gap.

[0062] The two corner portions of the upper end of the fixed plate 233 are provided with exhaust holes 2331.

[0063] The exhaust holes 2331 penetrate the plate surface of the fixed plate 233, and the exhaust holes 2331 are located beside the fan cover 234.

[0064] As shown, Figure 3 When the heating assembly 23 is working, the air flow output by the auxiliary fan 235 flows out of the air outlet gap, which pushes the hot air flow discharged from the air outlet, so that the flow rate of the hot air flow along the circumferential surface of the material roll is accelerated, and the efficiency of the air flow circulating along the surface of the material roll is improved.

[0065] As shown, Figure 3 The exhaust holes 2331 located at the two corner portions of the upper end of the fixed plate 233 can exhaust the water vapor generated by heating the material.

[0066] Further, the fixed plate 233 is further provided with a drainage groove 2332.

[0067] The drainage groove 2332 is recessed from the rear plate surface of the fixed plate 233 from rear to front, and extends from top to bottom; the upper end of the drainage groove 2332 abuts against the bottom edge of the fan cover 234, and the gap between the bottom edge of the fan cover 234, the front end surface of the fan cover 234 and the front plate surface of the fixed plate 233 forms the air outlet gap.

[0068] The gap between the bottom edge of the drainage groove 2332 and the front end of the base 21 forms the air outlet.

[0069] As Figure 3 shown, by setting the flow guide groove 2332, the width of the hot air flow discharged from the air outlet can be limited, and the circulating air flow driven by the fan 235 is output downward along the front two sides of the flow guide groove 2332, and is combined with the hot air flow discharged from the air gap, so that the flow rate of the hot air flow is improved.

[0070] Further, the air inlet assembly 22 further comprises a sealing ring 222;

[0071] The sealing ring 222 is installed on the bottom surface of the cover plate 221 and surrounds the inner side of the edge of the cover plate 221.

[0072] As Figure 4 shown, when the heating device 2 stops working, the cover plate 221 is lowered and seals the air inlet hole 211 through the sealing ring 222, so that the external air can be prevented from penetrating into the storage box through the air inlet hole 211, thereby preventing the consumable roll in the storage box from being damp.

[0073] Further, the air inlet assembly 22 further comprises a guide rod 223, a motor 224 and a gear 225;

[0074] The upper end of the guide rod 223 is connected to the bottom surface of the cover plate 221; the lower end of the guide rod 223 extends downward, and the side surface of the guide rod 223 is provided with a rack 2331;

[0075] The motor 224 is installed at the rear of the base 21, the gear 235 is installed at the output end of the motor 224, and the gear 235 is engaged with the rack 2331.

[0076] As Figure 4 shown, by rotating the gear 235 driven by the motor 224, and then lifting and lowering the guide rod 223 driven by the rack 2331, the cover plate 221 can be controlled to be lifted to cover or open the air inlet hole 211.

[0077] Further, the base 21 is further provided with a receiving groove 214;

[0078] The receiving groove 214 surrounds the inner side of the edge of the air inlet hole 211, and the receiving groove 214 is used for receiving the sealing ring 222;

[0079] The left and right side edges of the air inlet hole 211 are provided with exhaust grooves 212;

[0080] The exhaust grooves 212 extend in the front-rear direction, and the front end of the exhaust grooves 212 is in communication with the exhaust through hole 2331;

[0081] The exhaust grooves 212 are recessed and located on the inner side of the receiving groove 214.

[0082] As shown in Figure 5 The receiving groove 214 is arranged in the inner side of the edge of the air inlet hole 211 to improve the sealing performance when the cover plate 221 covers the air inlet hole 211.

[0083] As shown in Figure 5 The arrangement of the exhaust groove 212 can make the cover plate 221 seal the gap between the exhaust groove 212 and the cover plate 221 when covering and sealing the air inlet hole 221, so that the humid air outside can not enter the storage box through the exhaust through hole 2331.

[0084] Further, the bottom surface of the cover plate 221 is provided with lower edge portions 2211 on the left and right sides;

[0085] The upper end of the lower edge portion 2211 is connected with the bottom surface of the cover plate 221, and the lower end of the lower edge portion 2211 extends downward;

[0086] The outer side surface of the lower edge portion 2211 abuts against the inner side of the edge of the air inlet hole 211, and the lower edge portion 2211 blocks the inner side of the exhaust groove 212.

[0087] As shown in Figure 5 When the heating device 2 works, the cover plate 221 rises and the outer side surface of the lower edge portion 2211 abuts against the inner side of the edge of the exhaust through hole 2331, so that the airflow flowing into the base 21 passes between the two lower edge portions 2211, and the airflow discharged from the exhaust groove 212 is blocked by the lower edge portion 2211, which can prevent the water vapor in the discharged airflow from being entrained by the inflowing airflow from the air inlet hole 211 into the base 21.

[0088] Further, the base 21 is also provided with an inner groove 215;

[0089] The inner groove 215 is located at the front end bottom edge of the base 21 and is recessed backward; the inner groove 215 and the slot opening of the drainage groove 2332 form the air outlet hole.

[0090] The air outlet hole formed by the inner groove 215 and the slot opening of the drainage groove 2332 matches the width of the arrangement of the consumables on the consumable reel 3, which can improve the efficiency and uniformity of the hot airflow for heating the consumables.

[0091] As shown in Figures 1-5 The 3D printing consumable storage box with a heating function, the air inlet fan 231 and the electric heater 232 in the heating assembly 23 can guide and heat the air entering from the air inlet hole 211, form a hot airflow, and blow on the circumferential surface of the consumable reel in a tangent direction, thereby heating the consumables and keeping the consumables dry, which can ensure that the printed consumables do not affect the printing quality.

[0092] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will all fall within the protection scope of the present application.

Claims

1. A 3D printing consumable storage box with heating function, comprising a base box and a top cover, wherein the base box has at least one storage cavity for holding a consumable reel, and the front wall of the storage cavity has a discharge port, characterized in that, It also includes a heating device; the rear wall of the top cover has a through hole; The heating device includes a base, an air intake assembly, and a heating assembly; The base is inserted into the through hole, the rear end of the base is exposed behind the top cover, the rear end of the base is provided with an air inlet, and the front end of the base is open. The air intake assembly includes a cover plate; the heating assembly includes an air intake fan, an electric heater, and a fixing plate. The cover plate is vertically mounted on the air inlet; the fixing plate is mounted on the front end of the base and covers the opening; an air outlet is left between the bottom edge of the fixing plate and the bottom edge of the front end of the base; the air outlet is directed downwards along the tangential direction toward the gap between the outer peripheral surface of the consumable reel and the inner wall of the storage chamber. The intake fan and the electric heater are mounted adjacent to each other on the rear panel of the fixing plate. The air outlet of the intake fan is connected to the air inlet of the electric heater, and the air outlet of the electric heater faces downward and is connected to the air outlet.

2. The 3D printing consumable storage box with heating function according to claim 1, characterized in that, The vent is located near the upper part of the rear wall of the storage chamber, and the storage chamber is recessed downward between the vent and the discharge port.

3. The 3D printing consumable storage box with heating function according to claim 1, characterized in that, There are gaps between the bottom box and the top cover and the outer peripheral surface of the consumable reel.

4. The 3D printing consumable storage box with heating function according to claim 1, characterized in that, The heating assembly also includes a fan cover and an auxiliary fan; The fan cover is hollow; the fan cover is snapped onto the front panel of the fixing plate; the auxiliary fan is installed inside the top port of the fan cover; an air outlet gap is left between the bottom edge of the fan cover and the front panel of the fixing plate. The two corners at the upper end of the fixing plate are provided with exhaust holes; The exhaust vent penetrates the surface of the fixing plate and is located on the side of the fan cover.

5. The 3D printing consumable storage box with heating function according to claim 4, characterized in that, The fixing plate is also provided with a drainage groove; The flow channel is recessed from back to front on the rear plate surface of the fixing plate and extends from top to bottom; the upper end of the flow channel abuts against the bottom edge of the fan cover, and the gap between the bottom edge of the fan cover, the front end surface of the fan cover and the front plate surface of the fixing plate forms the air outlet gap. The air outlet is formed by the gap between the bottom edge of the drainage channel and the front bottom edge of the base.

6. The 3D printing consumable storage box with heating function according to claim 4, characterized in that, The air intake assembly also includes a sealing ring; The sealing ring is installed on the bottom surface of the cover plate and surrounds the inner side of the edge of the cover plate.

7. The 3D printing consumable storage box with heating function according to claim 1, characterized in that, The intake assembly also includes a guide rod, a motor, and gears; The upper end of the guide rod is connected to the bottom surface of the cover plate; the lower end of the guide rod extends downward, and a toothed rack is provided on the side of the guide rod; The motor is mounted at the rear of the base, and the gear is mounted at the output end of the motor, meshing with the rack.

8. The 3D printing consumable storage box with heating function according to claim 6, characterized in that, The base also has a storage slot; The storage groove surrounds the inner edge of the air inlet and is used to store the sealing ring. Exhaust grooves are provided on both the left and right sides of the air inlet. The exhaust groove extends in the front-to-back direction, and the front end of the exhaust groove is connected to the exhaust through hole; The exhaust groove is recessed and located inside the storage groove.

9. The 3D printing consumable storage box with heating function according to claim 8, characterized in that, The cover plate has a lower edge on both the left and right sides of its bottom surface; The upper end of the lower edge is connected to the bottom surface of the cover plate, and the lower end of the lower edge extends downward. The outer side of the lower edge abuts against the inner side of the edge of the air inlet, and the lower edge covers the inner side of the exhaust groove.

10. The 3D printing consumable storage box with heating function according to claim 5, characterized in that, The base also has an inner groove; The inner groove is located at the front bottom edge of the base and is recessed backward; the inner groove and the opening of the drainage groove enclose each other to form the air outlet.

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