CN214419593U

CN214419593U - Broken wire and wire changing detection mechanism in 3D printer

Info

Publication number: CN214419593U
Application number: CN202120398945.9U
Authority: CN
Inventors: 张敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-10-19
Anticipated expiration: 2031-02-23

Abstract

The utility model provides a broken silk change detection mechanism in 3D printer prevents to print because of the broken silk thread breaks and breaks. The broken wire and wire changing detection mechanism in the 3D printer is characterized by comprising a wire feeding pipe connected with a spray head, the other end of the wire feeding pipe is connected with a three-way joint, the other two ends of the three-way joint are respectively connected with a horn-shaped wire guide cover I and a horn-shaped wire guide cover II, the broken wire and wire changing detection mechanism further comprises a wire feeding rotating plate I and a wire feeding rotating plate II, an L-shaped positioning block I is fixed at the top end of the wire feeding rotating plate I, a positioning chute I is formed in a wire feeding substrate, one end of the L-shaped positioning block I extends into the positioning chute I, a positioning spring I and a positioning spring II are arranged in the positioning chute I, the wire feeding rotating plate II and the wire feeding rotating plate I are provided with a positioning block II, the broken wire and wire changing detection mechanism can detect whether a printing wire is disconnected or used up, double-wire discs are used for feeding wires, and printing duration is improved. The utility model has the advantages of prevent to print because of the silk thread fracture and interrupt.

Description

Broken wire and wire changing detection mechanism in 3D printer

Technical Field

The utility model belongs to the technical field of machinery, a broken silk detection mechanism that trades in 3D printer is related to, especially a broken silk detection mechanism that trades in Fused Deposition rapid prototyping (Fused Deposition Modeling, FDM)3D printer.

Background

Fused Deposition rapid prototyping (FDM) 3D printer, the working principle of which is: fused deposition, also known as fused deposition, is the process of heating and melting a filamentary hot-melt material, which is extruded through a nozzle with a fine nozzle, deposited on a panel or a previous layer of cured material, and deposited by layer-by-layer deposition of the material to form the final product. In the prior art, if a printing wire is broken in the printing process, printing is interrupted, and production is affected. In addition, the current 3D printer is single charging tray confession silk usually, because current 3D printer printing speed is relatively slow, in once printing process, it is long for a long time to print in succession, and single charging tray feeding often runs out at unspecified time and causes the disconnected material, influences normal continuous printing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having above-mentioned problem to current technique, provide a disconnected silk in 3D printer and trades silk detection mechanism, solve the problem that exists among the background art, prevent to print because of the silk thread fracture is interrupted.

The purpose of the utility model can be realized by the following technical proposal: a broken wire and wire change detection mechanism in a 3D printer comprises a frame and a wire disc suspension mechanism, wherein a loading adjusting platform is arranged on the frame, a gluing mechanism is arranged on the loading adjusting platform, a jet printing mechanism is arranged above the loading adjusting platform and comprises a jet printing base body, and a nozzle is arranged at the bottom of the jet printing base body. The wire feeding device comprises a wire feeding rotating plate I, a wire feeding base plate I, a wire guiding cover I, a wire guiding plate II, a wire guiding plate I and a wire guiding plate I, wherein the top end of the wire feeding rotating plate I is fixedly provided with the L-shaped positioning block I, one end of the L-shaped positioning block I extends into the positioning sliding groove I, a positioning spring I and a positioning spring II are arranged in the positioning sliding groove I, one end of the positioning spring I is abutted against the inner wall of the positioning sliding groove I, the other end of the positioning spring II is abutted against the inner wall of the positioning sliding groove I, the positioning block I is positioned between the positioning spring I and the positioning spring II, the side wall of the top end of the wire feeding rotating plate I is fixedly provided with the wire guiding plate I, the wire guiding plate I is arranged in the wire guiding plate I; the second wire feeding rotating plate is rotatably arranged on the side wall of the wire feeding base plate, the top end of the second wire feeding rotating plate faces the second wire guiding cover, an L-shaped position adjusting block II is fixed at the top end of the second wire feeding rotating plate, the wire feeding base plate is provided with a second positioning chute, one end of a second L-shaped positioning block extends into the second positioning chute, a third positioning spring and a fourth positioning spring are arranged in the second positioning chute, one end of the third positioning spring is abutted against the second positioning block, the other end of the third positioning spring is abutted against the inner wall of the second positioning chute, one end of the fourth positioning spring is abutted against the second positioning block, the other end of the fourth positioning spring is abutted against the inner wall of the second positioning chute, and the second positioning block is positioned between the third positioning spring and the fourth positioning spring, a second detection block is fixed on the side wall of the top end of the second wire feeding rotating plate, a second detection groove is formed in the second detection block, a second photoelectric inductor is arranged in the second detection groove, the wire feeding rotating plate II is provided with a wire feeding mechanism II for conveying the wires in the wire disc suspension mechanism to the inside of the material guide cover II; and a third photoelectric sensor is arranged in the wire feeding channel.

The first wire feeding mechanism comprises a first wire feeding gear and a second wire feeding gear, a first wire feeding chute is formed in the first wire feeding rotating plate, a first gear slider and a second gear slider are arranged in the first wire feeding chute in a sliding mode, the first wire feeding gear is rotatably arranged on the first gear slider, the second wire feeding gear is rotatably arranged on the second gear slider, a first extension spring and a second extension spring are arranged in the first wire feeding chute, two ends of the first extension spring are respectively fixed with one end wall of the first wire feeding chute and the first gear slider, two ends of the second extension spring are respectively fixed with the other end wall of the first wire feeding chute and the second gear slider, a first push-pull electromagnet is fixed at the bottom end of the first wire feeding rotating plate, a push-pull rod of the first push-pull electromagnet is in double-linkage connection with the first gear slider and the second gear slider through a first connecting rod group, when the push-pull rod of the first push-pull electromagnet is contracted, the first gear slider and the second gear slider are close to each other, the first wire feeding gear and the second wire feeding gear are close to each other, a motor support plate is fixed on the gear slide block II, a first wire feeding motor is fixed on the motor support plate, and an output shaft of the first wire feeding motor is connected with a rotating shaft of the second wire feeding gear; the second wire feeding mechanism comprises a third wire feeding gear and a fourth wire feeding gear, a second wire feeding chute is formed in the second wire feeding rotating plate, a third gear slide block and a fourth gear slide block are arranged in the second wire feeding chute in a sliding mode, the third wire feeding gear is rotatably arranged on the third gear slide block, the fourth wire feeding gear is rotatably arranged on the fourth gear slide block, a third extension spring and a fourth extension spring are arranged in the second wire feeding chute, two ends of the third extension spring are respectively fixed with an end wall of the second wire feeding chute and the third gear slide block, two ends of the fourth extension spring are respectively fixed with the other end wall of the first wire feeding chute and the fourth gear slide block, a second push-pull electromagnet is fixed at the bottom end of the second wire feeding rotating plate, a push-pull rod of the second push-pull electromagnet is in linkage connection with the third gear slide block and the fourth gear slide block through a second connecting rod group, and when the push-pull rod of the second push-pull electromagnet is contracted, the third gear slide block and the fourth gear slide block are close to each other, and the third wire feeding gear and the fourth wire feeding gear are close to each other, a motor support plate is fixed on the gear slide block, a second wire feeding motor is fixed on the motor support plate, and an output shaft of the second wire feeding motor is connected with a rotating shaft of the fourth wire feeding gear.

The wire disc suspension mechanism comprises a first wire disc guide rod and a second wire disc guide rod which are vertically fixed at the bottom of the rack, a first wire disc sliding block and a first force measuring spring are sleeved on the first wire disc guide rod, a first wire disc bracket is fixed on the side wall of the first wire disc sliding block, a second wire disc sliding block and a second force measuring spring are sleeved on the second wire disc guide rod, a second wire disc bracket is fixed on the side wall of the second wire disc sliding block, a residual material scale plate is vertically fixed between the first wire disc guide rod and the second wire disc guide rod on the rack, a residual material scale I and a residual material scale II are respectively carved on two sides of the residual material scale plate, a residual material pointer I is transversely fixed on the first wire disc sliding block, and a residual material pointer II is transversely fixed on the second wire disc sliding block.

The meshing surface of the first wire feeding gear and the second wire feeding gear is in an arc concave shape, and the meshing surface of the third wire feeding gear and the fourth wire feeding gear is in an arc concave shape.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses, through disconnected silk mechanism of trading, when taking place to print the silk thread disconnection, can automatic go up the silk, perhaps when silk material used up, can automatic continuous silk, guarantee the continuation of printing.

2. The utility model discloses, the silk dish hangs the mechanism, and double silk dish hangs the feed, has improved the time of endurance of printing, through the weight measurement to the surplus material silk, estimates whether enough supply with of silk material, realizes accurate production.

Drawings

Fig. 1 is a schematic view of the axial measurement structure of the present invention.

Fig. 2 is a schematic view of the structure of the present invention measured from the back.

Fig. 3 is a schematic structural view of the object leveling table of the present invention.

Fig. 4 is a schematic bottom structure view of the platform for adjusting the object of the present invention.

Fig. 5 is a schematic view of the structure of the present invention with a partial cross section.

Fig. 6 is a schematic structural diagram of the jet printing mechanism of the present invention.

Fig. 7 is a schematic view of a partial structure of the ejection mechanism of the present invention.

Fig. 8 is a schematic sectional structure diagram of the ejection mechanism of the present invention.

Fig. 9 is a schematic view of the structure of the multi-throw crankshaft connected with the plunger of the present invention.

Fig. 10 is a schematic sectional structure diagram of the glue-coating roller set of the present invention.

Fig. 11 is an exploded view of the first wire feeding mechanism of the present invention.

Fig. 12 is a schematic structural view of the wire reel suspension mechanism of the present invention.

Fig. 13 is a schematic structural view of the leveling template of the present invention.

In the figure, 1, a frame; 2. a platen; 3. a loading plate; 4. a brake seat I; 5. a second brake seat; 6. a brake seat III; 7. a fourth brake seat; 8. a first ejector rod; 9. a first leveling spring; 10. a first band-type brake; 11. a jet printing base body; 12. a spray head; 13. leveling the measuring head; 14. a plunger; 15. a post hole; 16. a multi-throw crankshaft; 17. a connecting rod; 18. a first track substrate; 19. a second track substrate; 20. a first linear sliding track; 21. a first variable pitch track; 22. a linear slide block I; 23. a first guide rod; 24. a second guide rod; 25. a first T-shaped lifting slide block; 26. a first variable-pitch sliding block; 27. a glue spreading roller; 28. a glue box; 29. a clear water box; 30. a rubber blade; 31. a first transverse groove; 32. a transposition electromagnet I; 33. a second transposition electromagnet; 34. a first sliding rod; 35. a first steel slide block; 36. a first return spring; 37. a second return spring; 38. a first flow limiting roller; 39. a second flow limiting roller; 40. a yielding chute I; 41. a yielding slide block I; 42. a yielding spring I; 43. a yielding chute II; 44. a concession slide block II; 45. a yielding spring II; 46. driving a motor I; 47. driving a gear I; 48. driving a first rack; 49. a wire feeding pipe; 50. a three-way joint; 51. a wire feeding substrate; 52. a first wire guide cover; 53. a second wire guide cover; 54. feeding a wire to a first rotating plate; 55. a second wire feeding rotating plate; 56. a first positioning block; 57. a first positioning chute; 58. a first position adjusting spring; 59. a second positioning spring; 60. detecting a first block; 61. detecting a first groove; 62. a second positioning sliding groove; 63. a wire channel; 64. a wire feeding gear I; 65. a second wire feeding gear; 66. a wire feeding chute I; 67. a first gear sliding block; 68. a second gear sliding block; 69. a first extension spring; 70. a second extension spring; 71. a first push-pull electromagnet; 72. a first connecting rod group; 73. a wire feeding motor I; 74. a first wire disc guide rod; 75. a second wire disc guide rod; 76. a first wire disc sliding block; 77. a first force measuring spring; 78. a first wire disc bracket; 79. a force measuring spring II; 80. a second wire disc bracket; 81. a residual material scale plate; 82. the residual material is marked with I; 83. the residual material is marked with a second scale; 84. a first residual material pointer; 85. a second residual material pointer; 86. a first sphere; 87. locking a ring I; 88. a measuring head ejector rod; 89. a probe ball; 90. a top block chute; 91. a wedge-shaped top block; 92. ejecting an electromagnet; 93. a lug; 94. a gauge head spring; 95. transverse rows; 96. eight horizontal rows; 97. longitudinal row; 98. eight rows in the vertical direction; 99. a pulley; 100. a synchronous belt; 101. a tension wheel; 102. a first rotating plate shaft; 103. a second rotating plate shaft; 104. leveling the substrate; 105. and leveling the measuring column.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figures 1, 2, 4 and 5, the broken wire and wire change detection mechanism in the 3D printer comprises a frame 1, a wire disc suspension mechanism and a broken wire and wire change detection mechanism, wherein a carrying and leveling platform is arranged on the frame 1, a gluing mechanism is arranged on the carrying and leveling platform, a jet printing mechanism is arranged above the carrying and leveling platform, the carrying and leveling platform comprises a bedplate 2, the bottom of the bedplate 2 is fixed with the frame 1 through a bracket, a carrying plate 3 is arranged on the bedplate 2, the carrying plate 3 is fixed with the bedplate 2 through a leveling mechanism, the leveling mechanism comprises a first brake seat 4, a second brake seat 5, a third brake seat 6 and a fourth brake seat 7 which are distributed at four corners and embedded in the bedplate 2, a first ejector rod 8 is vertically arranged in the first brake seat 4, the first ejector rod 8 can slide up and down in the first brake seat 4, a first leveling spring 9 is arranged in the first brake seat 4, the bottom end of the first ejector rod 8 is abutted against the top end of the first leveling spring 9, a first internal contracting brake 10 is arranged in the first brake seat 4, and a first ejector rod 8 penetrates through the first contracting brake 10; a second ejector rod is vertically arranged in the second brake seat 5, the second ejector rod can slide up and down in the second brake seat 5, a second leveling spring is arranged at the inner bottom of the second brake seat 5, the bottom end of the second ejector rod is abutted against the top end of the second leveling spring, a second internal contracting brake is further arranged in the second brake seat 5, and the second ejector rod penetrates through the second internal contracting brake; a third ejector rod is vertically arranged in the third brake seat 6, the third ejector rod can slide up and down in the third brake seat 6, a third leveling spring is arranged at the inner bottom of the third brake seat 6, the bottom end of the third ejector rod is abutted against the top end of the third leveling spring, a third internal contracting brake is further arranged in the third brake seat 6, and the third ejector rod penetrates through the third internal contracting brake; a fourth ejector rod is vertically arranged in the fourth brake seat 7, the fourth ejector rod can slide up and down in the fourth brake seat 7, a leveling spring IV is arranged at the inner bottom of the fourth brake seat 7, the bottom end of the fourth ejector rod is abutted against the top end of the leveling spring IV, a fourth internal contracting brake is further arranged in the fourth brake seat 7, and the fourth ejector rod penetrates through the fourth internal contracting brake; the object carrying plate 3 is supported by the top ends of the first ejector rod 8, the second ejector rod, the third ejector rod and the fourth ejector rod, in the embodiment, the top ends of the first ejector rod 8, the second ejector rod, the third ejector rod and the fourth ejector rod are movably connected with the bottom of the object carrying plate 3 in a way that the top ends of the first ejector rod 8, the second ejector rod, the third ejector rod and the fourth ejector rod are matched with the ball cavity, as shown in fig. 5, the top end of the first ejector rod 8 is fixedly provided with a first ball 86, the bottom surface of the object carrying plate 3 is provided with a first ball cavity, the first ball 86 is matched with the first ball cavity, a first locking ring 87 is sleeved at the bottom of the first ball 86 and is fixed with the object carrying plate 3, the first ball 86 is matched with the first ball cavity through the first locking ring 87, and the second ejector rod, the third ejector rod and the fourth ejector rod are connected with the object carrying plate 3 in a way as the first ejector rod 8, so that the object carrying plate 3 can incline freely through the rotary matching of the ball and the ball cavity when the object carrying plate 3 is leveled; the jet printing mechanism comprises a jet printing seat body 11, a spray head 12 is arranged at the bottom of the jet printing seat body 11, the jet printing seat body 11 is connected with a coordinate mechanism which can enable the jet printing seat body 11 to move along the left-right direction, the front-back direction and the up-down direction, the coordinate mechanism is a mechanism in the prior art and realizes that the spray head 12 moves along the left-right X axis, the front-back Y axis and the up-down Z axis, the bottom of the jet printing seat body 11 is also provided with a leveling measuring head 13, the leveling measuring head 13 is connected with a measuring head ejecting mechanism which can enable the leveling measuring head to lift up and down, as shown in figure 6, the leveling measuring head 13 comprises a measuring head ejector rod 88, the bottom end of the measuring head ejector rod 88 is provided with a measuring head sliding groove vertically arranged in the jet printing seat body 11, the measuring head ejector rod 88 is arranged in the measuring head sliding groove, the jet printing seat body 11 is transversely provided with an ejector block sliding groove 90, one end of the ejector block 91 is provided with a wedge shape, the wedge-shaped ejector block 91 is connected with a push rod of an electromagnet 92 fixed on the jet printing seat body 11, a lug 93 is fixed on the side wall of the measuring head ejector rod 88, and the lug 93 is connected with the jet printing seat body 11 through a measuring head spring 94.

The working principle is as follows: before printing, leveling the object carrying plate 3, the leveling method is that firstly, a leveling measuring head 13 is extended downwards by a measuring head ejection mechanism to enable the position of the leveling measuring head to be lower than the spray head 12, the specific execution action is that an ejection electromagnet 92 pushes a wedge-shaped ejecting block 91, a wedge-shaped surface of the wedge-shaped ejecting block 91 pushes a measuring head ejector rod 88 downwards to enable the measuring head ejector rod 88 to descend, under the moving action of a coordinate mechanism, a measuring head ball 89 at the bottom end of the measuring head ejector rod 88 firstly collides with any one of four corners of the top surface of the object carrying plate 3, for example, firstly collides with the top surface of the object carrying plate 3 at the upper end of a ejector rod I8, the ejector rod I8 compresses a leveling spring I9 to descend, then a lock brake I8 is locked by a lock brake I10, the measuring head ejector rod 88 then horizontally moves to the top surface of the object carrying plate 3 at the upper end of a ejector rod II, then sequentially moves to the top surfaces of the object carrying plate 3 at the ejector rod III and the ejector rod IV, a lock brake III and a lock brake IV respectively, thus, the object carrying plate 3 is adjusted to be in a horizontal state, the printing precision of a product placed on the top surface of the object carrying plate 3 is improved, then the ejecting electromagnet 92 retracts the wedge-shaped ejecting block 91, the measuring head ejecting rod 88 moves upwards under the action of the measuring head spring 94 and is higher than the spray head 12 to reset, and the spray head 12 can be in contact with the object carrying plate 3 for printing; then the rubber coating mechanism carries out the rubber coating to the year thing board 3 top surface of carrying the accent platform, makes the printing goods fix on carrying thing board 3, prevents to slide, will print required silk dish and hang on silk dish hangs the mechanism, with the silk thread through disconnected silk change silk detection mechanism connect to shower nozzle 12 on, supply the jet printing mechanism to print, disconnected silk change silk mechanism detects whether the silk thread is disconnected and the silk thread is used up to automatic continuation of silk guarantees the continuity of printing, prevents to interrupt production because of disconnected silk.

As shown in fig. 3, 7, 8 and 9, a product ejecting mechanism is arranged on the loading adjusting platform, the product ejecting mechanism comprises a plurality of plungers 14, the loading plate 3 is provided with a plurality of column holes 15, the plungers 14 are assembled in the column holes 15 and are tightly matched with the column holes in a sliding manner, the plungers can eject glue or clean water flowing into the column holes to the surface of the loading plate, the plungers 14 are transversely arranged into a plurality of transverse rows and longitudinally arranged into a plurality of longitudinal rows, in the embodiment, the left side and the right side are transversely arranged into eight rows along the X axis, the transverse rows are sequentially from 95 to 96, the front side and the rear side are longitudinally arranged into eight rows along the Y axis, the longitudinal rows are sequentially from 97 to 98, each transverse row of plungers 14 is driven by a multi-throw crankshaft 16 and a connecting rod 17, namely, the plunger 14 on the transverse row one is connected with the first multi-throw crankshaft on the left side, the plungers 14 on the transverse row eight are sequentially connected with the eighth multi-throw crankshaft on the left side, the multi-throw crankshaft 16 has a phase angle of 180 degrees, i.e. the adjacent cranks are oppositely oriented, so that the plungers 14 connected to the same crankshaft have opposite moving directions of their adjacent plungers 14, when any one plunger 14 is at the top dead center, its adjacent plunger 14 is at the bottom dead center, when the adjacent plungers 14 are at the same height, i.e. the top surfaces of all the plungers 14 on the same crankshaft are also at the same height, and the top surfaces of all the plungers 14 are flush with the top surface of the carrier plate 3, and the moving direction of the adjacent plungers 14 on each column is opposite, i.e. the carrier plate 3 comprises all the rows and columns, and the moving direction of the adjacent plungers 14 is opposite, and when the top surface of any one plunger 14 is flush with the top surface of the carrier plate 3, the top surfaces of all the plungers 14 are flush with the top surface of the carrier plate 3, so that the function of facilitating the printed product glued on the carrier plate 3 to be separated from the carrier plate 3, reducing damage to the bottom of the product during separation from the carrier plate 3, when printing is prepared, the top surfaces of all the plungers 14 are flush with the top surface of the object carrying plate 3, when the product is ejected after printing is finished, a part of the plungers 14 move upwards to separate the bottom surface of the product from the top surface of the object carrying plate 3, meanwhile, the adjacent plungers 14 move downwards, the top surfaces of the plungers 14 are separated from the bottom surface of the product, therefore, the product is separated from the object carrying plate 3 along with the rising plungers 14, then the rising plungers 14 descend after reaching the top dead center, and when the descending plungers are lower than the top surface of the object carrying plate 3, the top surfaces of the plungers 14 are separated from the bottom surface of the product, therefore, the product is completely separated from the object carrying plate 3 and all the plungers 14, and can be taken out; the product is separated step by step in turn in the separation process, firstly the ascending plunger 14 is still contacted with the product, the bottom surface of the product is separated from the top surface of the loading plate 3 and the plunger 14 moving downwards, the pulling stress area of the bottom surface of the product in the separation process is reduced, in addition, when the descending plunger 14 is separated from the product, the periphery of the bonding part of the bottom surface of the product and the descending plunger 14 is abutted against the top surface of the loading plate 3 to play a role of a fulcrum, during the falling and separation process of the plunger 14, the forced deformation of the bottom surface of the product is reduced, and finally, the rising plunger 14 which is also bonded with the product falls to completely separate the top surface of the loading plate 3 as a fulcrum from the product, through the up-and-down movement of the densely arranged plungers 14 and the adjacent plungers 14, the stress surface of the bottom surface of the product is dispersed when the product is separated, the damage to the bottom surface of the product is reduced, and particularly for the thin-wall type bottom surface, the product is easily damaged by a traditional shoveling-off mode; the plurality of transverse multi-throw crankshafts 16 are linked and rotated through a transmission mechanism which is a synchronous belt 100 transmission mechanism, belt wheels 99 are arranged on each multi-throw crankshaft 16 to rotate, each belt wheel 99 is linked in series through a synchronous belt 100 and tensioned through a tensioning wheel 101, and the synchronous belt 100 is driven to transmit through a synchronous motor.

As shown in fig. 1, the glue coating mechanism comprises a first track substrate 18 and a second track substrate 19, the first track substrate 18 and the second track substrate 19 are parallel to each other and fixed to the frame 1, a first linear sliding track 20 is fixed to the side surface of the first track substrate 18, a first variable-pitch track 21 is arranged on the side surface of the first track substrate 18 above the first linear sliding track 20, a first linear slider 22 is slidably arranged on the first linear sliding track 20, a first guide rod 23 and a second guide rod 24 are vertically fixed to the top of the first linear slider 22, a first T-shaped lifting slider 25 is sleeved between the first guide rod 23 and the second guide rod 24, a first guide hole and a second guide hole are respectively arranged at two ends of the top of the first T-shaped lifting slider 25, the first guide hole and the second guide hole are respectively sleeved on the first guide rod 23 and the second guide rod 24, a first variable-pitch slider 26 is slidably arranged in the first variable-pitch track 21, and the bottom of the first T-shaped lifting slider 25 is fixedly connected to the first variable-pitch slider 26; a second linear sliding rail is fixed on the side surface of the second rail substrate 19, a second variable-pitch rail is arranged on the side surface of the second rail substrate 19 above the second linear sliding rail, a second linear sliding block is arranged on the second linear sliding rail in a sliding manner, a third guide rod and a fourth guide rod are vertically fixed on the top of the second linear sliding block, a T-shaped lifting slider is sleeved between the third guide rod and the fourth guide rod, a third guide hole and a fourth guide hole are respectively arranged at two ends of the top of the T-shaped lifting slider, the third guide hole and the fourth guide hole are respectively sleeved into the third guide rod and the fourth guide rod, a second variable-pitch slider is arranged in the second variable-pitch rail in a sliding manner, and the bottom of the second T-shaped lifting slider is fixedly connected with the second variable-pitch slider; the first linear sliding block 22 and the second linear sliding block are connected with a first driving mechanism which can enable the first linear sliding block to slide along the first linear sliding track 20 and the second linear sliding track in a linkage mode respectively; and a glue coating roller set is arranged between the first T-shaped lifting slide block 25 and the second T-shaped lifting slide block. The first driving mechanism enables the first linear sliding block 22 and the second linear sliding block to slide along the first linear sliding track 20 and the second linear sliding track respectively, the glue coating roller set is driven to move along the top surface of the object carrying plate 3, the first T-shaped lifting sliding block 25 and the second T-shaped lifting sliding block slide along the first variable pitch track 21 and the second variable pitch track respectively, when the glue coating roller set starts to glue the object carrying plate 3, the glue coating roller set descends along the first variable pitch track 21 and the second variable pitch track, the top surface of the object carrying plate 3 is glued in a laminating mode, and after glue coating is completed, the glue coating roller set ascends to separate from the top surface of the object carrying plate 3.

The gluing roller group comprises a gluing roller 27, a glue box 28 and a clear water box 29, a rubber scraper 30 is fixed on the side surface of the clear water box 29, two ends of the glue box 28 and the clear water box 29 are fixedly connected with a T-shaped lifting slide block I25 and a T-shaped lifting slide block II, the gluing roller 27 is rotatably arranged between the glue box 28 and the clear water box 29, the top of the T-shaped lifting slide block I25 is provided with a transverse groove I31, the side wall of the T-shaped lifting slide block I25 is fixedly provided with a transposition electromagnet I32 and a transposition electromagnet II 33, a slide rod I34 is connected between the transposition electromagnet I32 and the transposition electromagnet II 33, the slide rod I34 is sleeved with a steel slide block I35, one end of the slide block steel block I35 extends into the transverse groove I31, the slide rod I34 is sleeved with a return spring I36 and a return spring II 37, one end of the return spring I36 is abutted against the transposition electromagnet I32, the other end is abutted against the steel slide block I35, one end of the return spring II 37 is abutted against the transposition electromagnet II 33, the other end of the spring is abutted against the first steel sliding block 35; a transverse groove II is formed in the top of the T-shaped lifting sliding block II, a transposition electromagnet III and a transposition electromagnet IV are fixed on the side wall of the T-shaped lifting sliding block II, a sliding rod II is connected between the transposition electromagnet III and the transposition electromagnet IV, a steel sliding block II is arranged on the sliding rod II, one end of the steel sliding block II extends into the transverse groove II, a return spring III and a return spring IV are arranged on the sliding rod II, one end of the return spring III is abutted against the transposition electromagnet III, the other end of the return spring III is abutted against the steel sliding block II, one end of the return spring IV is abutted against the transposition electromagnet IV, and the other end of the return spring IV is abutted against the steel sliding block II; the gluing roller 27 is axially penetrated and fixed with a rotating shaft, one end of the rotating shaft is rotatably arranged in the first steel sliding block 35, the other end of the rotating shaft is rotatably arranged in the second steel sliding block, one side, facing the gluing roller 27, of the glue box 28 is provided with a glue outlet side port, one side, facing the gluing roller 27, of the clear water box 29 is provided with a water outlet side port, a first flow limiting roller 38 is arranged in the glue box 28, the first flow limiting roller 38 is connected with a yielding mechanism capable of abutting against the glue outlet side port and closing the glue outlet side port, when the gluing roller 27 abuts against the first flow limiting roller 38, the first flow limiting roller 38 moves into the glue box 28, and the glue outlet side port is opened; a second flow-limiting roller 39 is arranged in the clear water box 29, the second flow-limiting roller 39 is connected with a second yielding mechanism which can enable the second flow-limiting roller to abut against the outlet of the clear water box and can seal the outlet of the clear water box, when the gluing roller 27 abuts against the second flow-limiting roller 39, the second yielding mechanism enables the second flow-limiting roller 39 to move in the clear water box 29, and the outlet of the clear water box is opened. Clear water is injected into the clear water box 29, glue is injected into the glue box 28, before printing, glue is coated, the clear water in the clear water box 29 cleans the object carrying plate 3 from which a product is removed, the transposition electromagnet two 33 and the transposition electromagnet four respectively adsorb the steel slide block one 35 and the steel slide block two, so that the glue coating roller 27 is abutted against the first current limiting roller 38 in the glue box 28, when the glue coating roller 27 rolls on the object carrying plate 3, the first current limiting roller 38 is driven to rotate, the first current limiting roller 38 drives the glue in the glue box 28 to the surface of the glue coating roller 27, on one hand, due to the effect of the first current limiting roller 38, the glue in the glue box 28 is driven to the surface of the glue coating roller 27 through the adhesion effect of the surface of the first current limiting roller 38 to the glue, on the other hand, due to the effect of the yielding mechanism one, the glue outlet side port is slightly opened, the glue overflows to the surface of the glue coating roller 27, and the glue coating roller 27 rolls on the object carrying plate 3, the object carrying plate 3 is coated with glue, a rubber scraper 30 is fixed on the side surface of the clear water box 29, and when the coating roller 27 retracts, the rubber scraper 30 scrapes the glue on the object carrying plate 3 flat so that the glue is uniformly distributed on the object carrying plate 3. When cleaning is carried out after printing is finished, the first transposition electromagnet 32 and the third transposition electromagnet respectively adsorb the first steel sliding block 35 and the second steel sliding block 35, so that the gluing roller 27 is abutted against the second current-limiting roller 39 in the clear water box 29, when the gluing roller 27 rolls on the object carrying plate 3, the second current-limiting roller 39 is driven to rotate, the second current-limiting roller 39 drives clear water in the clear water box 29 to the surface of the gluing roller 27, and similarly, on one hand, due to the self-rotation effect of the second current-limiting roller 39, clear water in the clear water box 29 is driven to the surface of the gluing roller 27 through the adhesion effect of the surface of the second current-limiting roller 39 on the clear water, on the other hand, due to the effect of the second yielding mechanism, a water outlet side opening is slightly opened, the clear water overflows to the surface of the gluing roller 27, the gluing roller 27 rolls on the object carrying plate 3, the object carrying plate 3 is cleaned, a rubber scraper 30 fixed on the side surface of the clear water box 29, when the gluing roller 27 rolls on the object carrying plate 3 and is cleaned, preferably, the rubber scraper 30 scrapes the clean water on the object carrying plate 3 off the object carrying plate 3 when the glue cylinder 27 is retracted. In this embodiment, the drum surface of the gluing drum 27 is a fluff drum, the glue in the glue box 28 is water-soluble glue, after the gluing drum 27 is glued, the glue adhered to the drum is dissolved in water in the cleaning process, and in the process of cleaning the object carrying plate 3, the glue on the drum surface is cleaned at the same time.

As shown in fig. 10, the yielding mechanism includes two yielding chutes one 40 respectively disposed on inner walls of two ends of the glue box 28, a yielding slide block one 41 is disposed in the yielding chute one 40, a yielding spring one 42 is disposed in the yielding chute one 40, a first flow-limiting roller 38 axially penetrates and is fixed with a rotating shaft, and two ends of the rotating shaft are respectively rotatably disposed on side surfaces of the two yielding slide blocks one 41; the second yielding mechanism comprises two yielding chutes two 43 respectively arranged on the inner walls of the two ends of the clear water box 29, two yielding slide blocks 44 are arranged in the yielding chutes two 43, two yielding springs 45 are arranged in the yielding chutes two 43, a rotating shaft is axially arranged and fixed on the second flow limiting roller 39 in a penetrating manner, and the two ends of the rotating shaft are respectively rotatably arranged on the side surfaces of the two yielding slide blocks 44.

The first driving mechanism comprises a first driving motor 46, a first driving gear 47 and a first driving rack 48, the first driving rack 48 is fixed on the side wall of the first track substrate 18, the first driving motor 46 is fixed with the first linear sliding block 22, the first driving gear 47 is fixedly connected with an output shaft of the first driving motor 46, and the first driving gear 47 is meshed with the first driving rack 48; a second driving rack is fixed on the side wall of the second track substrate 19, a second driving motor is fixed on the side wall of the second linear sliding block, a second driving gear is fixedly connected to an output shaft of the second driving motor, and the second driving gear is meshed with the second driving rack.

The broken wire and wire changing detection mechanism comprises a wire feeding pipe 49 connected with the spray head 12, the other end of the wire feeding pipe 49 is connected with a three-way joint 50, a wire feeding base plate 51 is vertically fixed on the side face of the frame 1, the three-way joint 50 is fixed with the wire feeding base plate 51, the other two ends of the three-way joint 50 are respectively connected with a horn-shaped wire guiding cover I52 and a wire guiding cover II 53, the broken wire and wire changing detection mechanism further comprises a wire feeding rotating plate I54 and a wire feeding rotating plate II 55, the wire feeding rotating plate I54 is rotatably arranged on the side wall of the wire feeding base plate 51 through a rotating plate shaft I102, the top end of the wire feeding rotating plate I54 faces the wire guiding cover I52, an L-shaped positioning block I56 is fixed at the top end of the wire feeding rotating plate I54, a positioning chute I57 is arranged on the wire feeding base plate 51, one end of the L-shaped positioning block I56 extends into the positioning chute I57, a positioning spring I58 and a positioning spring II 59 are arranged in the positioning chute I57, one end of the positioning spring I58 is abutted against the positioning block I56, the other end of the wire feeding rotating plate I54 abuts against the inner wall of the first positioning sliding groove I57, one end of a second positioning spring 59 abuts against the first positioning block 56, the other end of the wire feeding rotating plate I abuts against the inner wall of the first positioning sliding groove I57, the first positioning block 56 is located between a first positioning spring 58 and the second positioning spring 59, a first detection block 60 is fixed on the side wall of the top end of the first wire feeding rotating plate 54, a first detection groove 61 is formed in the first detection block 60, a first photoelectric sensor is arranged in the first detection groove 61, and a first wire feeding mechanism I for conveying the wire in the wire disc suspension mechanism into the first wire guide cover 52 is arranged on the first wire feeding rotating plate 54; the second wire feeding rotating plate 55 is rotatably arranged on the side wall of the wire feeding base plate 51 through a second rotating plate shaft 103, the top end of the second wire feeding rotating plate 55 faces the second wire guide cover 53, a second L-shaped positioning block is fixed at the top end of the second wire feeding rotating plate 55, a second positioning chute 62 is formed in the wire feeding base plate 51, one end of the second L-shaped positioning block extends into the second positioning chute 62, a third positioning spring and a fourth positioning spring are arranged in the second positioning chute 62, one end of the third positioning spring is abutted against the second positioning block, the other end of the third positioning spring is abutted against the inner wall of the second positioning chute 62, one end of the fourth positioning spring is abutted against the second positioning block, the other end of the fourth positioning spring is abutted against the inner wall of the second positioning chute 62, the second positioning block is positioned between the third positioning spring and the fourth positioning spring, a second detection block is fixed on the side wall of the top end of the second wire feeding rotating plate 55, a second detection groove is formed in the second detection groove, a second photoelectric sensor is arranged in the second detection groove, and a second wire feeding rotating plate 55, and a wire feeding mechanism for conveying a wire in the wire guide cover 53 in the wire suspension mechanism of the wire guide plate suspension mechanism II, performing secondary filtration; the jet printing seat body 11 is internally provided with a material wire channel 63 for the material wire to pass through, and the material wire channel 63 is internally provided with a third photoelectric sensor. When the third photoelectric sensor detects no filament signal in the filament channel 63 and the first photoelectric sensor in the first detection groove 61 detects a filament signal, it indicates that a filament breakage phenomenon is generated in the filament feeding pipe 49, in practice (filament breakage is most easily generated in the filament feeding pipe 49), at this time, the first filament feeding mechanism conveys the filaments into the first filament guiding cover 52 (if the filaments are fed through the filament disc in the first filament guiding cover 52 at this time, the principle of the present invention is the same when the filaments are fed in the second filament guiding cover 53), the filaments are conveyed into the filament channel 63 through the filament feeding pipe 49 until the third photoelectric sensor detects a filament signal, at this time, the filaments are continuously fed to the spray head 12 for printing, and the first filament feeding mechanism stops feeding; when the photoelectric sensor III detects that a wire signal is in the wire feeding channel 63 and the photoelectric sensor I in the detection groove I61 detects that no wire signal is available, the fact that the wire of the wire disc fed through the wire guide cover I52 is used up is indicated at this moment, the wire feeding mechanism II conveys the wire of the other wire disc into the wire guide cover II 53, and the wire feeding mechanism II stops wire feeding until the wire is conveyed to the spray head 12 to enable the photoelectric sensor to detect the wire signal again, so that wire changing of the double wire discs is completed.

As shown in fig. 11, the first wire feeding mechanism includes a first wire feeding gear 64 and a second wire feeding gear 65, a first wire feeding chute 66 is formed on the first wire feeding rotating plate 54, a first gear slider 67 and a second gear slider 68 are slidably disposed in the first wire feeding chute 66, the first wire feeding gear 64 is rotatably disposed on the first gear slider 67, the second wire feeding gear 65 is rotatably disposed on the second gear slider 68, a first tension spring 69 and a second tension spring 70 are disposed in the first wire feeding chute 66, two ends of the first tension spring 69 are respectively fixed to an end wall of the first wire feeding chute 66 and the first gear slider 67, two ends of the second tension spring 70 are respectively fixed to the other end wall of the first wire feeding chute 66 and the second gear slider 68, a first push-pull electromagnet 71 is fixed to the bottom end of the first wire feeding rotating plate 54, a push-pull rod of the first push-pull electromagnet 71 is linked with the first gear slider 67 and the second gear slider 68 through a first connecting rod 72, when the push-pull rod of the first push-pull electromagnet 71 is retracted, the first gear slide block 67 and the second gear slide block 68 are close to each other, so that the first wire feeding gear 64 and the second wire feeding gear 65 are close to each other, when the first push-pull electromagnet 71 is powered off, the first gear slide block 67 and the second gear slide block 68 are reset and separated under the action of the first extension spring 69 and the second extension spring 70, so that the first wire feeding gear 64 and the second wire feeding gear 65 are separated from each other, a motor support plate is fixed on the second gear slide block 68, a first wire feeding motor 73 is fixed on the motor support plate, and an output shaft of the first wire feeding motor 73 is connected with a rotating shaft of the second wire feeding gear 65; the second wire feeding mechanism comprises a third wire feeding gear and a fourth wire feeding gear, a second wire feeding chute is formed in the second wire feeding rotating plate 55, a third gear slide block and a fourth gear slide block are arranged in the second wire feeding chute in a sliding mode, the third wire feeding gear is rotatably arranged on the third gear slide block, the fourth wire feeding gear is rotatably arranged on the fourth gear slide block, a third extension spring and a fourth extension spring are arranged in the second wire feeding chute, two ends of the third extension spring are respectively fixed with an end wall of the second wire feeding chute and the third gear slide block, two ends of the fourth extension spring are respectively fixed with the other end wall of the first wire feeding chute 66 and the fourth gear slide block, a second push-pull electromagnet is fixed at the bottom end of the second wire feeding rotating plate 55, a push-pull rod of the second push-pull electromagnet is in linkage connection with the third gear slide block and the fourth gear slide block through a second connecting rod group, and when the push-pull rod of the second push-pull electromagnet is contracted, the third gear slide block and the fourth gear slide block are close to each other, when the push-pull electromagnet is powered off, the third gear slide block and the fourth gear slide block reset and separate under the action of the third extension spring and the fourth extension spring, so that the third wire feed gear and the fourth wire feed gear separate from each other, a motor support plate is fixed on the fourth gear slide block, a second wire feed motor is fixed on the motor support plate, and an output shaft of the second wire feed motor is connected with a rotating shaft of the fourth wire feed gear. The meshing surfaces of the first wire feeding gear 64, the second wire feeding gear 65 and the third wire feeding gear and the fourth wire feeding gear are arc concave shapes, wires contact between the concave surfaces of the two gears, and the first wire feeding gear 64, the second wire feeding gear 65, the third wire feeding gear and the fourth wire feeding gear are driven by the first wire feeding motor 73 and the second wire feeding motor respectively to feed wires.

As shown in fig. 12, the wire reel suspension mechanism includes a first wire reel guide rod 74 and a second wire reel guide rod 75 vertically fixed at the bottom of the frame 1, a first wire reel slider 76 and a first force measuring spring 77 are sleeved on the first wire reel guide rod 74, a first wire reel bracket 78 is fixed on the side wall of the first wire reel slider 76, a second wire reel slider and a second force measuring spring 79 are sleeved on the second wire reel guide rod 75, a second wire reel bracket 80 is fixed on the side wall of the second wire reel slider, a residual material scale plate 81 is vertically fixed between the first wire reel guide rod 74 and the second wire reel guide rod 75 on the frame 1, a first residual material scale 82 and a second residual material scale 83 are respectively engraved on two sides of the residual material scale plate 81, a first residual material pointer 84 is transversely fixed on the first wire reel slider 76, and a second residual material pointer 85 is transversely fixed on the second wire reel slider. The wire disc is hung on the first wire disc bracket 78 and the second wire disc bracket 80, the weight of the excess material of the wire disc can be identified through the first excess material scale 82 and the second excess material scale 83 pointed by the first excess material pointer 84 and the second excess material pointer 85, and whether the excess material is enough or not is judged through software slicing analysis of the 3D printer. In the printing process, as the silk material on the silk disc is gradually reduced, the included angle between the silk material and the silk feeding mechanism is also changed, in order to keep the wire material passing through the first wire guide cover 52 or the second wire guide cover 53 in a straight line as much as possible, the first wire feed rotating plate 54 and the second wire feed rotating plate 55 can rotate around a first rotating plate shaft 102 and a second rotating plate shaft 103 respectively, under the action of the first positioning spring 58, the second positioning spring 59, the third positioning spring and the fourth positioning spring, the first wire feeding rotating plate 54 and the second wire feeding rotating plate 55 can keep a certain orientation and can deflect according to the angle of the silk thread, the silk thread passes through a first detection groove 61 and a second detection groove where the first photoelectric sensor and the second photoelectric sensor are positioned, in order to avoid the wire from colliding with the groove walls of the first detection groove 61 and the second detection groove when the first wire feeding rotating plate 54 and the second wire feeding rotating plate 55 deflect, enough width is set for the groove width of the first detection groove 61 and the second detection groove.

As shown in fig. 13, each multi-turn crankshaft 16 is index-adjusted by a pair of leveling templates, so that the top surfaces of the plungers 14 can be flush with the carrier plate 3 at the same time, the leveling templates include a leveling base plate 104 and a plurality of leveling measurement posts 105, and the leveling measurement posts 105 are vertically fixed to the leveling base plate 104. In this embodiment, the pair of leveling templates are two leveling templates with the same shape, the number of the leveling quantity pillars 105 of each leveling template is four, which is half of the number of the lateral pillar holes 15 on the object carrying plate 3, the distance between the adjacent leveling quantity pillars 105 is twice the distance between the lateral adjacent pillar holes 15 on the object carrying plate 3, and the diameter of the leveling quantity pillar 105 is smaller than the aperture of the pillar hole 15. The specific leveling method is that each multi-crank crankshaft and the belt wheel connected with the multi-crank crankshaft are loosened to enable each multi-crank crankshaft to rotate freely, one leveling sample plate is taken, four leveling quantity columns 105 are simultaneously inserted into the column holes 15 on the object carrying plate 3 according to the sequence of a first row counting longitudinally forward, a first hole counting transversely leftward, a third hole, a fifth hole and a seventh hole, a plunger 14 in each column hole 15 is pushed to a bottom dead center, then the leveling sample plate is kept still, the four multi-crank cranks counting transversely leftward and the like are locked with the belt wheel connected with the multi-crank cranks, at the moment, the other leveling sample plate is used, the four leveling quantity columns 105 are simultaneously inserted into the column holes on the object carrying plate 3 according to the sequence of a second row counting longitudinally forward, a second hole counting transversely leftward, a fourth hole, a sixth hole and an eighth hole, the plunger in each column hole is pushed to the bottom dead center, then the leveling sample plate is kept still, and the four multi-crank cranks counting transversely leftward and the belt wheel connected with the four multi-crank shafts, at this moment, the two leveling templates are pulled out, and leveling is completed, so that the top surfaces of all the plungers can be flush with the object carrying plate 3 simultaneously when each crankshaft rotates. The leveling mainly aims at that the assembly angle of the crankshaft end and the pulley hub of the belt pulley deviates when the belt pulley drives the crankshaft to work, the machine needs to be leveled and corrected after long-term operation, different plungers on the single crankshaft are connected with a crank pin on the crankshaft through a connecting rod 17, and the length of the connecting rod 17 basically does not change in the operation process of the machine, so that the leveling of the plungers on the single crankshaft is not needed, and the leveling method is also suitable for leveling of the machine during production and assembly.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although 1, rack is used more herein; 2. a platen; 3. a loading plate; 4. a brake seat I; 5. a second brake seat; 6. a brake seat III; 7. a fourth brake seat; 8. a first ejector rod; 9. a first leveling spring; 10. a first band-type brake; 11. a jet printing base body; 12. a spray head; 13. leveling the measuring head; 14. a plunger; 15. a post hole; 16. a multi-throw crankshaft; 17. a connecting rod; 18. a first track substrate; 19. a second track substrate; 20. a first linear sliding track; 21. a first variable pitch track; 22. a linear slide block I; 23. a first guide rod; 24. a second guide rod; 25. a first T-shaped lifting slide block; 26. a first variable-pitch sliding block; 27. a glue spreading roller; 28. a glue box; 29. a clear water box; 30. a rubber blade; 31. a first transverse groove; 32. a transposition electromagnet I; 33. a second transposition electromagnet; 34. a first sliding rod; 35. a first steel slide block; 36. a first return spring; 37. a second return spring; 38. a first flow limiting roller; 39. a second flow limiting roller; 40. a yielding chute I; 41. a yielding slide block I; 42. a yielding spring I; 43. a yielding chute II; 44. a concession slide block II; 45. a yielding spring II; 46. driving a motor I; 47. driving a gear I; 48. driving a first rack; 49. a wire feeding pipe; 50. a three-way joint; 51. a wire feeding substrate; 52. a first wire guide cover; 53. a second wire guide cover; 54. feeding a wire to a first rotating plate; 55. a second wire feeding rotating plate; 56. a first positioning block; 57. a first positioning chute; 58. a first position adjusting spring; 59. a second positioning spring; 60. detecting a first block; 61. detecting a first groove; 62. a second positioning sliding groove; 63. a wire channel; 64. a wire feeding gear I; 65. a second wire feeding gear; 66. a wire feeding chute I; 67. a first gear sliding block; 68. a second gear sliding block; 69. a first extension spring; 70. a second extension spring; 71. a first push-pull electromagnet; 72. a first connecting rod group; 73. a wire feeding motor I; 74. a first wire disc guide rod; 75. a second wire disc guide rod; 76. a first wire disc sliding block; 77. a first force measuring spring; 78. a first wire disc bracket; 79. a force measuring spring II; 80. a second wire disc bracket; 81. a residual material scale plate; 82. the residual material is marked with I; 83. the residual material is marked with a second scale; 84. a first residual material pointer; 85. a second residual material pointer; 86. a first sphere; 87. locking a ring I; 88. a measuring head ejector rod; 89. a probe ball; 90. a top block chute; 91. a wedge-shaped top block; 92. ejecting an electromagnet; 93. a lug; 94. a gauge head spring; 95. transverse rows; 96. eight horizontal rows; 97. longitudinal row; 98. eight rows in the vertical direction; 99. a pulley; 100. a synchronous belt; 101. a tension wheel; 102. a first rotating plate shaft; 103. a second rotating plate shaft; 104. leveling the substrate; 105. levelling posts, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A broken wire and wire change detection mechanism in a 3D printer comprises a rack (1) and a wire disc suspension mechanism, wherein a loading adjusting platform is arranged on the rack (1), a gluing mechanism is arranged on the loading adjusting platform, a jet printing mechanism is arranged above the loading adjusting platform and comprises a jet printing seat body (11), and a spray head (12) is arranged at the bottom of the jet printing seat body (11), and the broken wire and wire change detection mechanism is characterized by comprising a wire feeding pipe (49) connected with the spray head (12), the other end of the wire feeding pipe (49) is connected with a three-way joint (50), a wire feeding base plate (51) is vertically fixed on the side surface of the rack (1), the three-way joint (50) is fixed with the wire feeding base plate (51), the other two ends of the three-way joint (50) are respectively connected with a horn-shaped wire guide cover I (52) and a wire guide cover II (53), and the broken wire and wire change detection mechanism further comprises a wire feeding rotating plate I (54) and a wire feeding rotating plate II (55), the wire feeding rotating plate I (54) is rotatably arranged on the side wall of the wire feeding base plate (51), the top end of the wire feeding rotating plate I (54) faces the wire guiding cover I (52), the top end of the wire feeding rotating plate I (54) is fixedly provided with an L-shaped positioning block I (56), the wire feeding base plate (51) is provided with a positioning sliding groove I (57), one end of the L-shaped positioning block I (56) extends into the positioning sliding groove I (57), a positioning spring I (58) and a positioning spring II (59) are arranged in the positioning sliding groove I (57), one end of the positioning spring I (58) is abutted against the positioning block I (56), the other end of the positioning spring II (59) is abutted against the inner wall of the positioning sliding groove I (57), and the other end of the positioning spring II (59) is abutted against the inner wall of the positioning sliding groove I (57), so that the positioning block I (56) is positioned between the positioning spring I (58) and the positioning spring II (59), a first detection block (60) is fixed on the side wall of the top end of the first wire feeding rotating plate (54), a first detection groove (61) is formed in the first detection block (60), a first photoelectric inductor is arranged in the first detection groove (61), and a first wire feeding mechanism for conveying the wires in the wire disc suspension mechanism into the first wire guide cover (52) is arranged on the first wire feeding rotating plate (54); the wire feeding rotating plate II (55) is rotatably arranged on the side wall of the wire feeding base plate (51), the top end of the wire feeding rotating plate II (55) faces the wire guiding cover II (53), the top end of the wire feeding rotating plate II (55) is fixedly provided with an L-shaped positioning block II, the wire feeding base plate (51) is provided with a positioning sliding groove II (62), one end of the L-shaped positioning block II extends into the positioning sliding groove II (62), a positioning spring III and a positioning spring IV are arranged in the positioning sliding groove II (62), one end of the positioning spring III is abutted against the positioning block II, the other end of the positioning spring III is abutted against the inner wall of the positioning sliding groove II (62), one end of the positioning spring IV is abutted against the positioning block II, the other end of the positioning spring IV is abutted against the inner wall of the positioning sliding groove II (62), the positioning block II is positioned between the positioning spring III and the positioning spring IV, the side wall of the top end of the wire feeding rotating plate II (55) is fixedly provided with a detection block II, a photoelectric sensor II is arranged in the detection groove II, and a wire feeding mechanism II for conveying the wires in the wire disc suspension mechanism into a wire guide cover II (53) is arranged on the wire feeding rotating plate II (55); the jet printing base body (11) is internally provided with a material wire channel (63) for the material wire to pass through, and a photoelectric sensor III is arranged in the material wire channel (63).

2. The broken wire and wire change detection mechanism in the 3D printer according to claim 1, wherein the wire feeding mechanism I comprises a wire feeding gear I (64) and a wire feeding gear II (65), the wire feeding rotating plate I (54) is provided with a wire feeding chute I (66), the wire feeding chute I (66) is provided with a gear slider I (67) and a gear slider II (68) in a sliding manner, the wire feeding gear I (64) is rotatably arranged on the gear slider I (67), the wire feeding gear II (65) is rotatably arranged on the gear slider II (68), the wire feeding chute I (66) is internally provided with a tension spring I (69) and a tension spring II (70), two ends of the tension spring I (69) are respectively fixed with an end wall of the wire feeding chute I (66) and the gear slider I (67), two ends of the tension spring II (70) are respectively fixed with the other end wall of the wire feeding chute I (66) and the gear slider II (68), the bottom end of the wire feeding rotating plate I (54) is fixedly provided with a push-pull electromagnet I (71), a push-pull rod of the push-pull electromagnet I (71) is in linkage connection with a gear slide block I (67) and a gear slide block II (68) through a connecting rod group I (72), when the push-pull rod of the push-pull electromagnet I (71) is contracted, the gear slide block I (67) and the gear slide block II (68) are mutually closed, a wire feeding gear I (64) and a wire feeding gear II (65) are mutually closed, a motor support plate is fixedly arranged on the gear slide block II (68), a wire feeding motor I (73) is fixedly arranged on the motor support plate, and an output shaft of the wire feeding motor I (73) is connected with a rotating shaft of the wire feeding gear II (65); the second wire feeding mechanism comprises a third wire feeding gear and a fourth wire feeding gear, a second wire feeding chute is formed in the second wire feeding rotating plate (55), a third gear slide block and a fourth gear slide block are arranged in the second wire feeding chute in a sliding mode, the third wire feeding gear is rotatably arranged on the third gear slide block, the fourth wire feeding gear is rotatably arranged on the fourth gear slide block, a third extension spring and a fourth extension spring are arranged in the second wire feeding chute, two ends of the third extension spring are respectively fixed with an end wall of the second wire feeding chute and the third gear slide block, two ends of the fourth extension spring are respectively fixed with the other end wall of the first wire feeding chute (66) and the fourth gear slide block, a second push-pull electromagnet is fixed at the bottom end of the second wire feeding rotating plate (55), a push-pull rod of the second push-pull electromagnet is in linkage connection with the third gear slide block and the fourth gear slide block through a second connecting rod group, and when the push-pull rod of the second push-pull electromagnet is contracted, the third gear slide block and the fourth gear slide block are close to each other, and the third wire feeding gear and the fourth wire feeding gear are close to each other, a motor support plate is fixed on the gear slide block, a second wire feeding motor is fixed on the motor support plate, and an output shaft of the second wire feeding motor is connected with a rotating shaft of the fourth wire feeding gear.

3. The broken wire and wire change detection mechanism in the 3D printer according to claim 2, characterized in that the wire disc suspension mechanism comprises a first wire disc guide rod (74) and a second wire disc guide rod (75) which are vertically fixed at the bottom of the frame (1), a first wire disc sliding block (76) and a first force measuring spring (77) are sleeved on the first wire disc guide rod (74), a first wire disc bracket (78) is fixed on the side wall of the first wire disc sliding block (76), a second wire disc sliding block and a second force measuring spring (79) are sleeved on the second wire disc guide rod (75), a second wire disc bracket (80) is fixed on the side wall of the second wire disc sliding block, a residual material scale plate (81) is vertically fixed on the frame (1) between the first wire disc guide rod (74) and the second wire disc guide rod (75), a residual material scale first (82) and a residual material scale second (83) are respectively engraved on two sides of the residual material scale plate (81), a first residual material pointer (84) is transversely fixed on the first wire disc sliding block (76), and a second leftover material pointer (85) is transversely fixed on the second wire disc sliding block.

4. The mechanism of claim 2, wherein the meshing surfaces of the first wire feeding gear (64) and the second wire feeding gear (65) are concave-arc-shaped, and the meshing surfaces of the third wire feeding gear and the fourth wire feeding gear are concave-arc-shaped.