CN218985752U - 3D printing writing pen for blind person - Google Patents

Abstract

The utility model discloses a 3D printing writing pen for the blind, which comprises a pen cap, wherein the top of the pen cap is connected with a feeding component in a clamping way, a consumable cabin is arranged in an inner cavity of the pen cap, the top of the consumable cabin is connected with the feeding component, a discharging component is arranged in the consumable cabin, the outer wall of the bottom of the consumable cabin is sheathed with a heating plate, the bottom of the consumable cabin is connected with a material conveying component, the bottom of the pen cap is connected with a heat insulation sleeve in a clamping way, the inner cavity of the heat insulation sleeve is provided with a pushing mechanism, the pushing mechanism is connected with the material conveying component, the bottom of the pushing mechanism is sheathed with a discharging nozzle, and the discharging nozzle fixedly penetrates through the heat insulation sleeve. The hot-melt material gets into consumptive material cabin inner chamber top through reinforced subassembly direction, and the unloading subassembly is with quantitative material down to the consumptive material cabin of hot plate department in for material heating melting, conveying mechanism department is carried to the material that melts, and pushing mechanism pumps molten material and extrudes the position of writing through the discharge gate, forms braille point, realizes conveniently, need not to exert oneself to stamp the hole to the direct of writing out is the bump, can directly touch the reading, the inspection operation of being convenient for.

Description

3D printing writing pen for blind person

Technical Field

The utility model relates to the technical field of braille writing tools, in particular to a 3D printing writing pen for the blind.

Background

The braille takes the square as a unit, namely English-like letters as a unit, one Chinese character consists of a plurality of squares, and the writing rule is to write according to the pinyin of the Chinese character. The writing order is special, the reverse writing is forward reading, the right writing is left writing, and the left reading is right reading. The paper is pricked from the back and is read from the front, the braille is in units of 'squares', each square consists of six points, the sequence is 123 from top to bottom at the left side, 456 at the right side, and the six points are called one. One letter of English is one party, and one Chinese character consists of several phonetic alphabets.

The blind person needs to clamp the paper of the braille paper by virtue of the clamping plate, the horizontal placement is difficult to ensure and the braille paper can be clamped to the correct position every time in the first operation, the braille points are required to be stamped on the paper vertically by the hand holding the braille pen during writing, the braille paper is harder and thicker than the common paper, the hands are extremely tired and ache in the braille point stamping process, particularly in the examination process and under the professional conditions of a host, a reporter and the like, the writing becomes more difficult, tedious and time-consuming, the braille pen needs to continuously control the wrist to stamp the braille points directly upwards and downwards, the hand is easy to fatigue, the use is difficult, the paper needs to be turned over during touch reading, and the braille stamped by touch reading is inconvenient to use, and the inventor proposes the 3D printing writing pen for the blind person to solve the problems.

Disclosure of Invention

In order to solve the problems that the wrist is required to be continuously controlled to directly punch out the braille points, the hands are easy to fatigue and difficult to use when the braille pen is used; the utility model aims to provide a 3D printing writing pen for the blind.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a blind person 3D prints and writes pen, includes the pen cap, the top joint of pen cap has reinforced subassembly, the pen cap inner chamber is equipped with the consumptive material cabin, the reinforced subassembly of top fixed connection in consumptive material cabin, be equipped with the unloading subassembly in the consumptive material cabin, the fixed hot plate that has cup jointed of bottom outer wall in consumptive material cabin, the one end of defeated material subassembly is connected to the bottom in consumptive material cabin, the bottom joint of pen cap has the insulating sleeve, the inner chamber of insulating sleeve is equipped with push mechanism, the defeated material subassembly is connected to push mechanism, push mechanism bottom is fixed to be cup jointed the discharge gate, the discharge gate is fixed to run through the insulating sleeve.

Through above-mentioned technical scheme, hot-melt material refill (like PP, cylinder pole etc. that PE made) gets into consumptive material cabin inner chamber top through reinforced subassembly direction, unloading subassembly, defeated material subassembly and pushing mechanism are synchronous, during the use, the unloading subassembly is with quantitative material down in the consumptive material cabin of hot plate department for material heating melting, defeated material subassembly carries pushing mechanism department with molten material, pushing mechanism sucks molten material and extrudes the position of writing through the discharge gate, forms braille point, it is convenient to realize, need not to exert oneself to stamp the hole, and the direct of writing is the bump, can directly touch and read, the inspection operation of being convenient for.

In a preferred embodiment, the feeding assembly comprises a hopper, an upper connecting sleeve is fixedly arranged at the bottom of the hopper, the upper connecting sleeve is in threaded connection with the inner wall of the top of the pen cap, and the top of the consumable cabin is fixedly penetrated through the bottom plate of the hopper.

The preferred embodiment, the inner chamber bottom of loading hopper is the funnel-shaped structure, the inner wall fixed mounting of last adapter sleeve has the battery, the bottom outer wall of loading hopper is equipped with the mouth that charges, the battery is connected to the mouth electricity that charges, the fixed circuit board that is equipped with of outer wall in consumptive material cabin, the battery is connected to the circuit board electricity, the circuit board is all connected to unloading subassembly, hot plate, defeated material subassembly and pushing mechanism electricity.

The preferred embodiment, the unloading subassembly includes the uide bushing, the inner wall fixed mounting in consumptive material cabin has the uide bushing, two pivots have been cup jointed in the consumable cabin internal rotation of uide bushing bottom, fixed the cup joint in the pivot has the conveying gear, two the one end of pivot runs through the consumable cabin and has fixed the drive gear that has cup jointed, two drive gear meshes mutually, the outer wall fixed mounting in consumable cabin has the hanger plate, fixed mounting has first motor on the hanger plate, the output shaft fixed connection pivot of first motor, the inner chamber of uide bushing is the funnel-shaped structure, two conveying gear's clearance is just to the inner chamber bottom of uide bushing.

Through above-mentioned technical scheme, after the fusible material adds the loading hopper in, get into the consumptive material cabin through the hopper bottom hopper-shaped direction, a pivot is rotated to the first motor drive, and two pivots pass through drive gear synchronous rotation to make two conveying gear synchronous rotation, then fusible material stick stretches into between two conveying gear through the uide bushing, carries through two conveying gear centre gripping, thereby realizes stable quantitative pay-off.

The preferred embodiment, the material conveying assembly includes the insulation sleeve, the one end of insulation sleeve is connected to the bottom fixed connection of consumptive material cabin, the outer wall of other end fixed connection pushing mechanism of insulation sleeve, be equipped with the conveyer pipe in the insulation sleeve, consumable cabin and pushing mechanism are connected respectively at the both ends of conveyer pipe, the bottom fixed mounting in consumable cabin has the second motor, the output shaft of second motor runs through the bottom plate in consumable cabin and fixed connection vertical scroll, fixed sleeve has helical blade on the vertical scroll, the insulation sleeve is cavity arc structure, vertical scroll and helical blade's height is less than the height of hot plate, the hot plate is the electrothermal tube of laminating consumable cabin outer wall.

Through the technical scheme, after the materials fall into the consumable cabin at the heating plate for heating and melting, the second motor drives the vertical shaft to rotate, and the spiral blades rotate to convey molten materials spirally, so that the molten materials and the materials move downwards into the conveying pipe, and are extruded and conveyed to the pushing mechanism.

The preferred embodiment, push mechanism includes the seal tube, the fixed cup joint in the bottom of seal tube is on the discharge gate, sliding joint has the piston in the seal tube, the top fixed connection and the depression bar of piston, the top of seal tube is run through in the depression bar slip, the outer wall fixed mounting of depression bar has the sliding frame, the top fixed mounting of seal tube has the backup pad, fixed mounting has half gear in the backup pad, half gear is located the inner chamber of sliding frame, the equal fixed mounting in both sides inner wall of sliding frame has the rack, rack engagement half gear, the outer wall of seal tube is connected to the bottom of heat preservation, the bottom of conveyer pipe runs through to the inner chamber bottom of seal tube, the check valve is all installed at the bottom of conveyer pipe and the top of discharge gate, the outer wall sliding sleeve of discharge gate has been cup jointed thermal-insulated sliding sleeve, thermal-insulated sliding runs through the insulation sleeve, thermal-insulated sliding sleeve's top outer wall fixed mounting has the limiting plate, the top fixed mounting of limiting plate has micro-gap switch, the one end of thermal-insulated sliding sleeve's top terminal surface fixed connection spring, the bottom fixed connection of spring has the micro-gap switch, the electric circuit connection board is connected to the bottom of seal tube.

Compared with the prior art, the utility model has the beneficial effects that:

1. after the fusible material is added into the charging hopper, the fusible material enters the consumable cabin through funnel-shaped guide at the bottom of the charging hopper, the first motor drives one rotating shaft to rotate, and the two rotating shafts synchronously rotate through the transmission gears, so that the two conveying gears synchronously rotate, and then the fusible material rod stretches into the space between the two conveying gears through the guide sleeve and is clamped and conveyed through the two conveying gears, so that stable and quantitative feeding is realized;

2. after the material falls into a consumable cabin at the heating plate for heating and melting, a second motor drives a vertical shaft to rotate, a spiral blade rotates to spiral and convey the molten material, the molten material and the material move downwards into a conveying pipe, so that the molten material is extruded and conveyed to a pushing mechanism, a third motor drives a half gear to rotate, the half gear alternately meshes with racks at two sides of a sliding frame, so that the sliding frame moves reciprocally, a compression bar moves up and down, a piston moves up and down, when a piston moves up, the material in the conveying pipe is sucked into a sealing cylinder, and when the piston moves down, the material in the sealing cylinder is extruded from a discharge nozzle to form braille points;

3. the first motor, the second motor and the third motor are servo motors, the operation is controlled through the circuit board, meanwhile, the elastic force of the spring pushes the heat insulation sliding sleeve to completely shield the discharging nozzle for protection, when the automatic writing pen is used, the writing pen presses the paper surface, the heat insulation sliding sleeve moves upwards at the moment, the spring is compressed, the micro switch is contacted with the bottom of the sealing cylinder to be communicated, the starting signal is conveyed to the circuit board, the circuit board controls the first motor, the second motor and the third motor to operate once, the pushing mechanism pushes the material once to form a braille point, meanwhile, the blanking assembly and the material conveying assembly synchronously feed, so that stable writing is formed, a hole is not required to be stamped, the written direct bump is used, the automatic writing pen can be directly touched and read, checking operation is convenient, and use is convenient.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of the present utility model.

Fig. 2 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.

Fig. 3 is an enlarged schematic view of the structure of fig. 1 at B according to the present utility model.

Fig. 4 is an enlarged view of the structure of fig. 1 at C according to the present utility model.

Fig. 5 is an enlarged schematic view of the structure of fig. 1 at D according to the present utility model.

Fig. 6 is an enlarged view of fig. 5 at E according to the present utility model.

Fig. 7 is an enlarged schematic view of the structure of fig. 5 at F according to the present utility model.

In the figure: 1. a pen cap; 2. a charging assembly; 21. a hopper; 22. an upper connecting sleeve; 23. a storage battery; 24. a charging port; 3. a consumable cabin; 4. a blanking assembly; 41. a guide sleeve; 42. a rotating shaft; 43. a conveying gear; 44. a transmission gear; 45. a hanger plate; 46. a first motor; 5. a circuit board; 6. a heating plate; 7. a material conveying component; 71. a thermal insulation sleeve; 72. a delivery tube; 73. a second motor; 74. a vertical shaft; 75. a helical blade; 8. a pushing mechanism; 81. a sealing cylinder; 82. a piston; 83. a compression bar; 84. a sliding frame; 85. a support plate; 86. a third motor; 87. a half gear; 88. a rack; 9. a discharge nozzle; 10. a heat insulating sleeve; 11. a thermal insulation sliding sleeve; 12. a limiting plate; 13. a micro-switch; 14. spring

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: as shown in fig. 1-7, the utility model provides a 3D printing writing pen for the blind, which comprises a pen cap 1, wherein a feeding component 2 is clamped at the top of the pen cap 1, a consumable cabin 3 is arranged in an inner cavity of the pen cap 1, the top of the consumable cabin 3 is fixedly connected with the feeding component 2, a discharging component 4 is arranged in the consumable cabin 3, a heating plate 6 is fixedly sleeved on the outer wall of the bottom of the consumable cabin 3, one end of a material conveying component 7 is connected with the bottom of the consumable cabin 3, a heat insulation sleeve 10 is clamped at the bottom of the pen cap 1, a pushing mechanism 8 is arranged in the inner cavity of the heat insulation sleeve 10, the pushing mechanism 8 is connected with the material conveying component 7, a discharging nozzle 9 is fixedly sleeved at the bottom of the pushing mechanism 8, and the discharging nozzle 9 fixedly penetrates through the heat insulation sleeve 10.

Through above-mentioned technical scheme, hot-melt material refill (like PP, cylinder pole etc. that PE made) gets into consumable cabin 3 inner chamber top through reinforced subassembly 2 direction, unloading subassembly 4, material conveying subassembly 7 and push mechanism 8 are synchronous, during the use, in the consumable cabin 3 of unloading subassembly 4 place heating plate 6 department with quantitative material for material heating melts, material conveying subassembly 7 carries push mechanism 8 department with molten material, push mechanism 8 suction molten material and extrude the position of writing through discharge nozzle 9, form braille point, it is convenient to realize, need not to exert oneself to stamp the hole, and the directness of writing is the bump, can be directly touch and read, the inspection operation of being convenient for.

Further, charging assembly 2 includes hopper 21, the fixed adapter sleeve 22 that is equipped with in bottom of hopper 21, go up the top inner wall of adapter sleeve 22 threaded connection pen cap 1, the bottom plate that runs through hopper 21 is fixed at the top of consumptive material cabin 3, the inner wall fixed mounting of adapter sleeve 22 has battery 23, the inner chamber bottom of hopper 21 is funnel-shaped structure, the bottom outer wall of hopper 21 is equipped with charging port 24, charging port 24 electricity is connected battery 23, the fixed circuit board 5 that is equipped with in outer wall of consumptive material cabin 3, battery 23 is connected to circuit board 5 electricity, unloading subassembly 4, hot plate 6, the equal electricity connection circuit board 5 of conveying subassembly 7 and push mechanism 8.

Through above-mentioned technical scheme, after fusible material adds hopper 21 in, through hopper 21 bottom funnel form direction entering consumable cabin 3, battery 23 supplies power, and circuit board 5 intercommunication and control a plurality of subassemblies and mechanism operation.

Further, unloading subassembly 4 includes uide bushing 41, the inner wall fixed mounting in consumables cabin 3 has uide bushing 41, two pivots 42 have been cup jointed in the interior rotation of consumables cabin 3 of uide bushing 41 bottom, fixed conveying gear 43 of cup jointing in pivot 42, the one end of two pivots 42 runs through consumables cabin 3 and fixed transmission gear 44 of cup jointing, two transmission gears 44 mesh mutually, the outer wall fixed mounting in consumables cabin 3 has hanger plate 45, fixed mounting has first motor 46 on the hanger plate 45, the output shaft fixed connection pivot 42 of first motor 46, the inner chamber of uide bushing 41 is the funnel-shaped structure, the clearance of two conveying gears 43 is just to the inner chamber bottom of uide bushing 41.

Through the above technical scheme, the first motor 46 drives one rotating shaft 42 to rotate, and the two rotating shafts 42 synchronously rotate through the transmission gears 44, so that the two conveying gears 43 synchronously rotate, and then the fusible material rod stretches into the space between the two conveying gears 43 through the guide sleeve 41 and is clamped and conveyed through the two conveying gears 43, so that stable and quantitative feeding is realized.

Further, the blanking component 4 is close to the feeding component 7, so that the last remaining pen refill can fall to the feeding component 7 completely to be heated, melted and conveyed.

Further, the material conveying assembly 7 comprises a heat preservation sleeve 71, one end of the heat preservation sleeve 71 is fixedly connected to the bottom of the consumable cabin 3, the other end of the heat preservation sleeve 71 is fixedly connected with the outer wall of the pushing mechanism 8, a conveying pipe 72 is arranged in the heat preservation sleeve 71, the consumable cabin 3 and the pushing mechanism 8 are respectively connected to two ends of the conveying pipe 72, a second motor 73 is fixedly installed at the bottom of the consumable cabin 3, an output shaft of the second motor 73 penetrates through a bottom plate of the consumable cabin 3 and is fixedly connected with a vertical shaft 74, a spiral blade 75 is fixedly sleeved on the vertical shaft 74, the heat preservation sleeve 71 is of a hollow arc-shaped structure, the height of the vertical shaft 74 and the spiral blade 75 is smaller than that of the heating plate 6, and the heating plate 6 is an electric heating tube attached to the outer wall of the consumable cabin 3.

Through the above technical scheme, after the material falls into the consumable cabin 3 of hot plate 6 department and heats the melting, second motor 73 drives vertical scroll 74 rotation, and then screw blade 75 rotates the spiral and carries molten material, just moves down with the material and get into in the conveyer pipe 72 to the extrusion is carried to push mechanism 8 departments, and screw blade 75 laminating consumable cabin 3 inner wall, and the spiral is carried and is avoided melting material adhesion on consumable cabin 3 inner wall and can't fall.

Further, push mechanism 8 includes sealed section of thick bamboo 81, sealed section of thick bamboo 81's bottom fixed sleeve connects on ejection of compact mouth 9, sliding joint has piston 82 in sealed section of thick bamboo 81, the top fixed connection and the depression bar 83 of piston 82, the top of sealed section of thick bamboo 81 is run through in the depression bar 83 slip, the outer wall fixed mounting of depression bar 83 has a sliding frame 84, sealed section of thick bamboo 81's top fixed mounting has backup pad 85, fixed mounting has half gear 87 on the backup pad 85, half gear 87 is located the inner chamber of sliding frame 84, the equal fixed mounting of both sides inner wall of sliding frame 84 has rack 88, rack 88 meshes half gear 87, the outer wall of sealed section of thick bamboo 81 is fixedly connected to the bottom of insulation cover 71, the bottom of conveyer pipe 72 runs through to sealed section of thick bamboo 81's inner chamber bottom, the check valve is all installed at the bottom of conveyer pipe 72 and ejection of compact mouth 9 top.

Through the above technical scheme, the third motor 86 drives the half gear 87 to rotate, the half gear 87 alternately engages with the racks 88 on two sides of the sliding frame 84, so that the sliding frame 84 reciprocates, the compression bar 83 moves up and down, the piston 82 moves up and down, when the piston 82 moves up, the material in the conveying pipe 72 is sucked into the sealing cylinder 81, when the piston 82 moves down, the material in the sealing cylinder 81 is extruded from the discharging nozzle 9 to form braille points, the sealing cylinder 81 is sealed, and when the piston 82 does not move down, the molten drops in the discharging nozzle 9 cannot fall.

Further, the delivery tube 72, the sealing cylinder 81 and the discharge nozzle 9 are provided with electric heating sleeves, so that after the writing pen is not used, the residual melting material is solidified, and the solidified material is melted again through the electric heating sleeves when the writing pen is used next time.

Further, the first motor 46, the second motor 73 and the third motor 86 are servo motors, the operation is controlled through the circuit board 5, simultaneously, the outer wall of the discharging nozzle 9 is sleeved with the heat insulation sliding sleeve 11 in a sliding mode, the heat insulation sliding sleeve 11 penetrates through the heat insulation sleeve 10 in a sliding mode, the limiting plate 12 is fixedly installed on the outer wall of the top of the heat insulation sliding sleeve 11, the micro switch is fixedly installed on the top of the limiting plate 12, one end of the spring 14 is fixedly connected with the bottom of the sealing cylinder 81, the micro switch 13 is electrically connected with the circuit board 5, the heat insulation sliding sleeve 11 further performs heat insulation protection on the discharging nozzle 9, and the elastic force of the spring 14 pushes the heat insulation sliding sleeve 11 to completely shield the discharging nozzle 9, when the paper surface is used, the heat insulation sliding sleeve 11 moves upwards at the moment, the spring 14 is compressed, the micro switch 13 is contacted with the bottom of the sealing cylinder 81 to be communicated, a starting signal is conveyed to the circuit board 5, the circuit board 5 controls the first motor 46, the second motor 73 and the third motor 86 to operate once, and the pushing mechanism 8 pushes a material to form a braille point, meanwhile, the blanking component 4 and the feeding component 7 are synchronously fed with the material, a writing hole is formed, a writing hole is convenient to use, and a writing hole is stable, and a writing hole is easy to use, and a writing hole is easy to read.

Working principle: after the fusible material is added into the hopper 21 and is led into the consumable cabin 3 through the funnel-shaped guide at the bottom of the hopper 21, the first motor 46 drives one rotating shaft 42 to rotate, the two rotating shafts 42 synchronously rotate through the transmission gears 44, so that the two conveying gears 43 synchronously rotate, the fusible material rod stretches into the space between the two conveying gears 43 through the guide sleeve 41, and is clamped and conveyed through the two conveying gears 43, so that stable quantitative feeding is realized, after the material falls into the consumable cabin 3 at the heating plate 6 for heating and melting, the second motor 73 drives the vertical shaft 74 to rotate, the spiral blade 75 rotates to spiral and conveys the fused material, the spiral blade and the material move downwards into the conveying pipe 72, so as to be extruded and conveyed to the pushing mechanism 8, the third motor 86 drives the half gear 87 to rotate, the half gear 87 alternately meshes with racks 88 at two sides of the sliding frame 84, so that the sliding frame 84 moves reciprocally, the compression bar 83 moves up and down, the piston 82 moves up and down, when the piston 82 moves up, the material in the conveying pipe 72 is sucked into the sealing cylinder 81, when the piston 82 moves down, the material in the sealing cylinder 81 is extruded from the discharging nozzle 9 to form braille points, the first motor 46, the second motor 73 and the third motor 86 are all servo motors, the circuit board 5 controls operation, meanwhile, the heat insulation sliding sleeve 11 is pushed by the elastic force of the spring 14 to completely shield and protect the discharging nozzle 9, when the writing pen presses the paper surface, at the moment, the heat insulation sliding sleeve 11 moves up, the spring 14 compresses, the micro switch 13 contacts the bottom of the sealing cylinder 81 to be communicated, the starting signal is conveyed to the circuit board 5, the circuit board 5 controls the first motor 46, the second motor 73 and the third motor 86 to operate once, the pushing mechanism 8 pushes the material once to form a braille point, meanwhile, the discharging assembly 4 and the conveying assembly 7 synchronously feed materials, therefore, stable writing is formed, the hole does not need to be poked, the written bumps can be directly touched and read, the inspection operation is convenient, and the use is convenient.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. The utility model provides a pen is write in 3D printing of blind person, includes pen cap (1), its characterized in that: the top joint of pen cap (1) has reinforced subassembly (2), pen cap (1) inner chamber is equipped with consumptive material cabin (3), the top fixed connection of consumptive material cabin (3) feeds reinforced subassembly (2), be equipped with unloading subassembly (4) in consumptive material cabin (3), the bottom outer wall of consumptive material cabin (3) is fixed to be cup jointed hot plate (6), the one end of defeated material subassembly (7) is connected to the bottom of consumptive material cabin (3), the bottom joint of pen cap (1) has insulation jacket (10), the inner chamber of insulation jacket (10) is equipped with push mechanism (8), push mechanism (8) connect defeated material subassembly (7), push mechanism (8) bottom is fixed to be cup jointed ejection of compact mouth (9), ejection of compact mouth (9) are fixed to run through insulation jacket (10).

2. The blind person 3D printing writing pen according to claim 1, wherein the feeding assembly (2) comprises a feeding hopper (21), an upper connecting sleeve (22) is fixedly arranged at the bottom of the feeding hopper (21), the upper connecting sleeve (22) is in threaded connection with the top inner wall of the pen cap (1), and the top of the consumable cabin (3) is fixedly penetrated through a bottom plate of the feeding hopper (21).

3. The blind person 3D printing writing pen according to claim 2, wherein the bottom of the inner cavity of the charging hopper (21) is of a funnel-shaped structure, a storage battery (23) is fixedly arranged on the inner wall of the upper connecting sleeve (22), a charging port (24) is arranged on the outer wall of the bottom of the charging hopper (21), and the charging port (24) is electrically connected with the storage battery (23).

4. A blind person 3D printing writing pen as claimed in claim 3, characterized in that a circuit board (5) is fixedly arranged on the outer wall of the consumable cabin (3), the circuit board (5) is electrically connected with a storage battery (23), and the blanking component (4), the heating plate (6), the material conveying component (7) and the pushing mechanism (8) are electrically connected with the circuit board (5).

5. The blind 3D printing writing pen according to claim 1, wherein the blanking assembly (4) comprises a guide sleeve (41), the guide sleeve (41) is fixedly installed on the inner wall of the consumable cabin (3), two rotating shafts (42) are sleeved in the consumable cabin (3) at the bottom of the guide sleeve (41), conveying gears (43) are fixedly sleeved on the rotating shafts (42), one ends of the two rotating shafts (42) penetrate through the consumable cabin (3) and fixedly sleeved with transmission gears (44), the two transmission gears (44) are meshed, a hanging plate (45) is fixedly installed on the outer wall of the consumable cabin (3), a first motor (46) is fixedly installed on the hanging plate (45), and an output shaft of the first motor (46) is fixedly connected with one rotating shaft (42).

6. The 3D printing writing pen for the blind according to claim 5, wherein the inner cavity of the guide sleeve (41) is of a funnel-shaped structure, and the gap between the two conveying gears (43) is opposite to the bottom of the inner cavity of the guide sleeve (41).

7. The blind person 3D printing writing pen according to claim 1, wherein the material conveying component (7) comprises a heat preservation sleeve (71), the bottom of the consumable cabin (3) is fixedly connected with one end of the heat preservation sleeve (71), the other end of the heat preservation sleeve (71) is fixedly connected with the outer wall of the pushing mechanism (8), a conveying pipe (72) is arranged in the heat preservation sleeve (71), two ends of the conveying pipe (72) are respectively connected with the consumable cabin (3) and the pushing mechanism (8), a second motor (73) is fixedly arranged at the bottom of the consumable cabin (3), an output shaft of the second motor (73) penetrates through a bottom plate of the consumable cabin (3) and is fixedly connected with a vertical shaft (74), and a spiral blade (75) is fixedly sleeved on the vertical shaft (74).

8. The 3D printing writing pen for the blind according to claim 7, wherein the heat preservation sleeve (71) is of a hollow arc-shaped structure, the heights of the vertical shaft (74) and the spiral blades (75) are smaller than the height of the heating plate (6), and the heating plate (6) is an electric heating tube attached to the outer wall of the consumable cabin (3).

9. The blind 3D printing writing pen according to claim 7, wherein the pushing mechanism (8) comprises a sealing cylinder (81), the bottom of the sealing cylinder (81) is fixedly sleeved on the discharging nozzle (9), a piston (82) is connected in the sealing cylinder (81) in a sliding clamping mode, the top of the piston (82) is fixedly connected with a pressing rod (83), the pressing rod (83) penetrates through the top of the sealing cylinder (81) in a sliding mode, a sliding frame (84) is fixedly installed on the outer wall of the pressing rod (83), a supporting plate (85) is fixedly installed on the top of the sealing cylinder (81), a half gear (87) is fixedly installed on the supporting plate (85), the half gear (87) is located in an inner cavity of the sliding frame (84), racks (88) are fixedly installed on inner walls of two sides of the sliding frame (84), and the racks (88) are meshed with the half gear (87).

10. The blind 3D printing writing pen according to claim 9, wherein the bottom of the thermal insulation sleeve (71) is fixedly connected with the outer wall of the sealing barrel (81), the bottom of the conveying pipe (72) penetrates through the bottom of the inner cavity of the sealing barrel (81), one-way valves are arranged at the bottom of the conveying pipe (72) and the top of the discharging nozzle (9), the outer wall of the discharging nozzle (9) is sleeved with the thermal insulation sliding sleeve (11) in a sliding manner, the thermal insulation sliding sleeve (11) penetrates through the thermal insulation sleeve (10) in a sliding manner, the top outer wall of the thermal insulation sliding sleeve (11) is fixedly provided with the limiting plate (12), the top end face of the limiting plate (12) is fixedly connected with one end of the spring (14), the other end of the spring (14) is fixedly connected with the bottom of the sealing barrel (81), and the micro switch (13) is electrically connected with the circuit board (5).

Images