An automatic replenishing desktop 3D printer consumable wire feeding device

Abstract

The present invention relates to the technical field of 3D printers, and specifically to an automatically replenished desktop-level 3D printer consumable wire feeding device, comprising: a frame part, wherein the frame part is arranged on a wire feeding mechanism, and the frame part is interspersed with conveying consumables and spare consumables that abut against each other, and the conveying consumables are interspersed in the conveying channel of the wire feeding mechanism so as to be conveyed to the nozzle. In the present invention, when the conveying consumables are about to be exhausted, the side pushing part, the glue squeezing part and the bottom pushing part are automatically triggered in sequence, and the side pushing part performs side pushing work on the conveying consumables, so that the conveying consumables are smeared with glue by the glue squeezing part during the process of reaching the original conveying consumable position, and the bottom pushing part pushes down the spare consumables and adheres the conveying consumables to form a whole, so that the whole is conveyed by the wire feeding mechanism and melted by the nozzle to complete the normal operation of the 3D printer. The above structure and steps enable automatic material replenishment when the consumables are insufficient for printing, avoiding manual intervention and improving the duration and efficiency of 3D printing.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, and in particular to an automatically replenished wire feeding device for desktop-level 3D printer consumables. Background Art

[0002] During the working process, the desktop 3D printer uses the wire feeding mechanism to transport the consumables wound on the winding reel, so that the consumables are extruded through the hot melt nozzle. When the consumables are used up, the wire end of another roll of new consumables needs to be inserted into the wire feeding mechanism to replenish the amount of materials used in the 3D printing work;

[0003] However, the current replenishment of consumables requires manual intervention and does not have an automatic replenishment function. If personnel do not intervene in time, it is easy to cause a batch of printing work to be printed empty due to untimely replenishment. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the technical problem in the prior art that printing consumables of 3D printers cannot be automatically replenished, and to provide an automatically replenished desktop-level 3D printer consumable wire feeding device.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an automatic replenishment desktop 3D printer consumable wire feeding device, comprising:

[0006] A frame part, wherein the frame part is arranged on the wire feeding mechanism, and the frame part is interspersed with conveying consumables and spare consumables which abut against each other, and the conveying consumables are interspersed in the conveying channel of the wire feeding mechanism so as to be conveyed to the nozzle;

[0007] A side pusher, the side pusher is arranged on the frame part, and the side pusher abuts against the other side of the spare consumable, and the side pusher is used to side push the spare consumable to the consumable conveying position;

[0008] A bottom push portion, which is arranged on the frame portion and can abut against the other side of the conveying consumable or one side of the spare consumable, and is used to push down the spare consumable into the conveying channel of the wire feeding mechanism.

[0009] A glue extruding part, wherein the glue extruding part is arranged on the frame part, and the glue discharge direction of the glue extruding part is toward the spare consumable material, and the glue extruding part is in contact with the side pushing part, wherein:

[0010] After the conveying consumable is used up along with the wire feeding mechanism, the side pushing part pushes the spare consumable to move leftward and squeezes the glue squeezing part to discharge glue to the bottom of the spare consumable. After the side pushing part moves for a distance, it can drive the bottom pushing part to rotate, so that the bottom pushing part pushes down the spare consumable to adhere to the conveying consumable and feed the wire with it.

[0011] Further, the frame part includes a box body, a closed door hingedly arranged on the box body, a partition support plate arranged in the box body, a conveying hole penetrating the partition support plate and the box body, and a positioning hole arranged on the top of the box body;

[0012] The positioning hole is connected to the conveying hole on the top of the box body;

[0013] The left end of the partition support plate is in a step shape;

[0014] The conveying consumables are inserted through the conveying holes and the conveying channel of the wire feeding mechanism in sequence, and the spare consumables are inserted through the positioning holes and abut against the top surface of the step-shaped portion of the partition support plate.

[0015] Furthermore, the top surface of the partition support plate and the top of the box body are combined into a first track;

[0016] The side pusher comprises a slider slidably arranged in the first track, an insertion hole arranged at the side end of the box body, a movable column inserted in the insertion hole and connected to the slider, and a spring arranged outside the movable column;

[0017] The two ends of the spring are respectively connected to the slider and the inner wall of the box, and the spring can be compressed, wherein:

[0018] After the conveying consumable leaves the box, the spring can drive the slider to move so that the slider pushes the spare consumable side against the bottom pushing portion.

[0019] Further, the slider includes a sliding plate arranged in the first track and connected to the movable column, and an extrusion groove arranged on the inner side of the sliding plate;

[0020] The extrusion groove is half rectangular and the other half right-angled trapezoid, wherein:

[0021] The sliding plate can drive the extrusion groove to squeeze the glue extrusion part to discharge glue.

[0022] Furthermore, the glue extruding part includes a storage capsule arranged on the box body, a glue outlet pipe integrally connected to the storage capsule, and a glue outlet channel arranged on the partition support plate and connected to the glue outlet pipe;

[0023] The glue outlet direction of the glue outlet channel is toward the bottom end of the spare consumables, wherein,

[0024] The extrusion groove can extrude the storage capsule so that the glue is coated on the bottom end of the spare consumable through the glue outlet pipe and the glue outlet channel.

[0025] Furthermore, a second track is provided between the rear end surface of the partition support plate and the rear end surface of the box body;

[0026] The side pusher comprises a connecting rod inserted in the second track and connected to the bottom end of the sliding plate, and a rack arranged at the bottom end of the connecting rod, wherein:

[0027] The sliding plate can drive the rack to move toward the bottom pushing portion through the connecting rod.

[0028] Furthermore, the bottom push portion includes a first gear hingedly arranged inside the box, a second gear hingedly arranged inside the box, and a crawler movably connected to the outside of the first gear and the second gear.

[0029] The first gear is capable of meshing with the rack;

[0030] The second gear can interfere with the spare consumable material, wherein

[0031] The rack can push the first gear to rotate, so that the first gear rotates and drives the second gear to rotate through the track, so that the second gear frictionally conveys the spare consumables and adheres to the conveying consumables and then conveys them through the wire feeding mechanism.

[0032] Furthermore, the bottom push portion further includes two first wheel discs arranged on the first gear, and two second wheel discs arranged on the second gear;

[0033] The inner wall surfaces of the two first wheel discs and the inner wall surfaces of the two second wheel discs are in contact with the front and rear ends of the crawler track.

[0034] Furthermore, the slider further comprises a rotating wheel arranged on the sliding plate;

[0035] The rotating wheel can contact the conveying consumables or spare consumables, wherein

[0036] The rotating wheel is used for frictional rotation when the consumables or spare consumables are conveyed vertically.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] When the conveying consumable is about to run out, the side pushing part, the glue squeezing part and the bottom pushing part are automatically triggered in sequence. The side pushing part pushes the conveying consumable sideways so that the conveying consumable is smeared with glue by the glue squeezing part during the process of the conveying consumable reaching the original conveying consumable position. The bottom pushing part pushes down the spare consumable and sticks the conveying consumable to form a whole. The whole is transported by the wire feeding mechanism and melted by the nozzle to complete the normal operation of the 3D printer. The above structure and steps enable automatic material replenishment when the consumable is insufficient for printing, avoiding manual intervention and improving the duration and efficiency of 3D printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0040] Figure 1 is a perspective view of a preferred embodiment of the present invention;

[0041] Figure 2 is a front view of a preferred embodiment of the present invention;

[0042] Figure 3 is a three-dimensional diagram of a glue extrusion unit of the present invention;

[0043] Figure 4 is a three-dimensional diagram of a slider of a side pusher of the present invention;

[0044] Figure 5 It is a schematic diagram of the glue outlet channel of the present invention;

[0045] Figure 6 is a partial three-dimensional diagram of the side thrust unit of the present invention from another viewing angle;

[0046] Figure 7 It is a perspective view of the side thrust portion of the present invention.

[0047] In the figure: 1. frame part; 11. box body; 12. closed door; 13. partition support plate; 14. conveying hole; 15. positioning hole; 2. wire feeding mechanism; 3. conveying consumables; 4. spare consumables; 5. side push part; 51. slider; 511. sliding plate; 512. extrusion groove; 513. rotating wheel; 52. interlaced hole; 53. movable column; 54. spring; 55. connecting rod; 56. rack; 6. side push part; 61. first gear; 62. second gear; 63. crawler track; 64. first wheel disc; 65. first wheel disc; 7. glue squeezing part; 71. storage capsule; 72. glue outlet pipe; 73. glue outlet channel; 8. nozzle. DETAILED DESCRIPTION

[0048] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0049] like Figure 1-7 As shown, the present invention provides an automatic replenishment desktop 3D printer consumable wire feeding device, comprising:

[0050] The frame part 1 is arranged on the wire feeding mechanism 2, and the frame part 1 is interspersed with conveying consumables 3 and spare consumables 4 that abut against each other, and the conveying consumables 3 are inserted into the conveying channel of the wire feeding mechanism 2 so as to be conveyed to the nozzle 8. The wire feeding mechanism 2 includes a motor connected to the frame part 1, and the shaft of the motor is inserted through the hole on the frame part 1 and connected to a conveying wheel. The frame part 1 is also hinged with a driven wheel on one side of the conveying wheel, and the gap between the driven wheel and the conveying wheel constitutes the conveying channel described above. This is a well-known technology of the existing 3D printer and will not be described in detail here.

[0051] A side pusher 5, wherein the side pusher 5 is movably arranged on the frame portion 1, and the side pusher 5 is against the other side of the spare consumable 4, and the side pusher 5 is used to side push the spare consumable 4 to the position of the conveying consumable 3, and the spare consumable 4 can replace the original conveying consumable 3 in the horizontal direction under the side push force;

[0052] A bottom push portion 6, wherein the bottom push portion 6 is arranged on the frame portion 1, and the bottom push portion 6 can be against the other side of the conveying consumable 3 or one side of the spare consumable 4, and the bottom push portion 6 is used to push the spare consumable 4 downward into the conveying channel of the wire feeding mechanism 2, and the conveying consumable 3 is against the bottom push portion 6 during use, and after the conveying consumable 3 is separated from the bottom push portion 6, the spare consumable 4 starts to be against the bottom push portion 6;

[0053] The glue extruding part 7 is arranged on the frame part 1, and the glue extruding direction of the glue extruding part 7 is toward the spare consumable material 4, and the glue extruding part 7 is in contact with the side pushing part 5, wherein:

[0054] After the conveying consumable 3 is used up along with the wire feeding mechanism 2, the side pushing part 5 pushes the spare consumable 4 to move left and squeezes the glue squeezing part 7 to discharge glue to the bottom of the spare consumable 4. After the side pushing part 5 moves for a distance, it can drive the bottom pushing part 6 to rotate, so that the bottom pushing part 6 pushes down the spare consumable 4 to adhere to the conveying consumable 3 along with the wire feeding. Specifically, in the prior art, the consumables are replaced by manually inserting new consumables into the wire feeding position. Before a printing step stops, if the consumables cannot be replenished in time, empty printing is likely to occur. In the present invention, when the conveying consumable 3 is about to be exhausted, the side pushing part 5, the glue squeezing part 7 and the bottom pushing part 6 are automatically triggered in sequence. After the triggering condition of the side pushing part 5 is met, the linkage effect is used again. The glue squeezing part 7 and the bottom pushing part 6 are triggered, and the side pushing part 5 pushes the conveying consumable 3 sideways, so that the conveying consumable 3 is smeared with glue by the glue squeezing part 7 when it reaches the original position of the conveying consumable 3. The glue discharge process of the glue squeezing part 7 is based on the extrusion effect of the side pushing part 5 during its movement. The bottom pushing part 6 pushes down the spare consumable 4 and sticks the conveying consumable 3 to form a whole. The spare consumable 4 and the conveying consumable 3 are thus spliced ​​together, and the whole is transported by the wire feeding mechanism 2 and melted by the nozzle 8 to complete the normal operation of the 3D printer. The above structure and steps enable automatic material replenishment when the amount of consumables is insufficient for printing, avoiding manual intervention, improving the duration and efficiency of 3D printing, and allowing the printing process to be carried out without interruption, thereby improving the yield rate of printing.

[0055] Optionally, the frame portion 1 includes a box body 11, a closed door 12 hingedly arranged on the box body 11, a partition support plate 13 arranged in the box body 11, a conveying hole 14 penetrating the partition support plate 13 and the box body 11, and a positioning hole 15 arranged on the top of the box body 11;

[0056] The positioning hole 15 is connected to the conveying hole 14 at the top of the box body 11, so that the movement of the spare consumables 4 is not blocked;

[0057] The left end of the partition support plate 13 is in a step shape, and the lower edge of the spare consumable 4 can contact the inner corner edge of the partition support plate 13, so that the position of the spare consumable 4 will not shift during the standby process, thereby increasing the positioning effect of its position.

[0058] The conveying consumable 3 is inserted into the conveying hole 14 and the conveying channel of the wire feeding mechanism 2 in sequence, and the spare consumable 4 is inserted into the positioning hole 15 and abuts against the top surface of the step-shaped part of the partition support plate 13. Specifically, the closed door 12 can rotate to close and open the box body 11, so that the internal parts of the box body 11 are not disturbed, and it is also convenient for the maintenance and replacement of the internal parts of the box body 11. The conveying hole 14 and the central axis of the conveying channel mentioned above are colinear, so that the conveying consumable 3 and the spare consumable 4 are conveyed in a vertical state, reducing the bending probability of the conveying consumable 3.

[0059] Optionally, the top surface of the partition support plate 13 and the top of the box body 11 are combined into a first track;

[0060] The side pusher 5 includes a slider 51 slidably disposed in the first track, an insertion hole 52 disposed at the side end of the box body 11, a movable column 53 inserted in the insertion hole 52 and connected to the slider 51, and a spring 54 disposed outside the movable column 53;

[0061] The two ends of the spring 54 are connected to the slider 51 and the inner wall of the box body 11 respectively, and the spring 54 can be compressed, wherein:

[0062] After the conveying consumable 3 leaves the box 11, the spring 54 can drive the slider 51 to move, so that the slider 51 pushes the spare consumable 4 side against the bottom pushing portion 6. Specifically, the slider 51 and the movable column 53 respectively perform limiting activities under the limiting forces of the first track and the insertion hole 52 to ensure stability during the activity, and also ensure a straight trajectory during the expansion and contraction process of the spring 54, thereby increasing the balancing effect of its use. When the conveying consumable 3 no longer conflicts with the spare consumable 4 during the conveying process, the conflicting positioning effect of the spare consumable 4 on the slider 51 disappears, and then the spring 54 loses its restriction and releases the stored energy to allow the slider 51 to move on its own, and the spare consumable 4 moves toward the lateral position of the original conveying consumable 3 under the influence of the force.

[0063] Optionally, the slider 51 includes a sliding plate 511 disposed in the first track and connected to the movable column 53, and an extrusion groove 512 disposed on the inner side of the sliding plate 511;

[0064] The extrusion groove 512 is half rectangular and the other half right-angled trapezoid, wherein:

[0065] The sliding plate 511 can drive the extrusion groove 512 to squeeze the glue squeezing part 7 to squeeze out glue. Specifically, the sliding plate 511 and the extrusion groove 512 move synchronously. The shape of the extrusion groove 512 allows the compression process and pressure of the glue squeezing part 7 to have a gradual process, thereby avoiding the situation of colloid spraying caused by the glue squeezing part 7 being compressed too quickly or being under too much pressure.

[0066] Optionally, the glue extruding unit 7 includes a storage capsule 71 disposed on the box body 11, a glue outlet pipe 72 integrally connected to the storage capsule 71, and a glue outlet channel 73 disposed on the partition support plate 13 and connected to the glue outlet pipe 72;

[0067] The glue outlet channel 73 is directed toward the bottom of the spare consumable 4, wherein:

[0068] The extrusion groove 512 can extrude the storage capsule 71 so that the glue is coated on the bottom end of the spare consumable 4 through the glue outlet tube 72 and the glue outlet channel 73. Specifically, the storage capsule 71 is configured to be a flexible and elastic material, which can be deformed and reset in time after the liquid is squeezed out by the extrusion groove 512, which is beneficial to the cycle of glue outlet work, and the outlet position of the glue outlet channel 73 is located on the side of the spare consumable 4 close to the conveying consumable 3, so that the spare consumable 4 can be radially coated with glue during the process of being pushed laterally, ensuring the effect of the spare consumable 4 being connected to the conveying consumable 3.

[0069] Optionally, a second track is provided between the rear end surface of the partition support plate 13 and the rear end surface inside the box body 11;

[0070] The side pusher 5 includes a connecting rod 55 inserted in the second track and connected to the bottom end of the sliding plate 511, and a rack 56 arranged at the bottom end of the connecting rod 55, wherein:

[0071] The sliding plate 511 can drive the rack 56 to move toward the bottom push part 6 through the connecting rod 55. Specifically, the second track can limit the connecting rod 55, so that the activity state of the rack 56 is stable, ensuring the accuracy of the driving position of the rack 56 for the bottom push part 6 and avoiding the rack 56 from shaking back and forth during the activity.

[0072] Optionally, the bottom push portion 6 includes a first gear 61 hingedly arranged inside the box body 11, a second gear 62 hingedly arranged inside the box body 11, and a crawler 63 movably connected to the outside of the first gear 61 and the second gear 62.

[0073] The first gear 61 is capable of meshing with the rack 56;

[0074] The second gear 62 can contact the spare consumable 4, wherein

[0075] The rack 56 can push the first gear 61 to rotate, so that the first gear 61 rotates through the track 63 to drive the second gear 62 to rotate, so that the second gear 62 rubs the spare consumable 4 and adheres to the conveying consumable 3 and then conveys it through the wire feeding mechanism 2. Specifically, the rack 56 moves toward the first gear 61 to drive it to rotate, and the first gear 61 drives the second gear 62 to rotate clockwise through the track 63. The second gear 62 thus drives the spare consumable 4 to be transported and docked with the conveying consumable 3 under the state of contact with the spare consumable 4. The rotation speed of the second gear 62 is greater than the conveying speed of the wire feeding mechanism 2 for the conveying consumable 3, ensuring a good docking effect between the spare consumable 4 and the conveying consumable 3 that is about to be delivered, avoiding the occurrence of empty printing, and after the rack 56 drives the first gear 61, it does not contact the lower left corner of the first gear 61. At this time, the part of the connecting rod 55 that does not act on the first gear 61 is at the lower end of the first gear 61, avoiding the rack 56 from being affected by the relative force and being hindered in movement.

[0076] Optionally, the bottom push portion 6 further includes two first wheel discs 64 arranged on the first gear 61, and two second wheel discs 65 arranged on the second gear 62;

[0077] The inner wall surfaces of the two first wheel discs 64 and the inner wall surfaces of the two second wheel discs 65 fit the front and rear ends of the track 63. Specifically, the gap between the two first wheel discs 64 and the gap between the two second wheel discs 65 are equal, and are also equal to the width of the track 63, which protects the rotation process of the track 63, prevents the transmission effect of the track 63 from being disturbed, and prevents the track 63 from detaching from the outside of the first gear 61 and the second gear 62.

[0078] Optionally, the slider 51 further includes a rotating wheel 513 disposed on the sliding plate 511;

[0079] The rotating wheel 513 can contact the conveying consumable 3 or the spare consumable 4, wherein

[0080] The rotating wheel 513 is used for frictional rotation when the conveying consumable 3 or the spare consumable 4 is vertically conveyed. Specifically, the rotating wheel 513 can replace the sliding plate 511 to contact the spare consumable 4 or the conveying consumable 3. With the cooperation of the second gear 62, the spare consumable 4 and the conveying consumable 3 encounter less resistance during the downward conveying process.

[0081] Working principle: first, pull the movable column 53 to make the sliding plate 511 compress the spring 54, and insert the conveying consumable 3 and the spare consumable 4 into the conveying hole 14 and the positioning hole 15 respectively, so that the conveying consumable 3 is pressed against the second gear 62 and then inserted into the wire feeding mechanism 2 and the nozzle 8 in turn, so that the spare consumable 4 is pressed against the rotating wheel 513 and the conveying consumable 3 respectively. At the same time, the spare consumable 4 is pressed against the partition support plate 13 and then covers the glue outlet channel 73. Then, the wire feeding mechanism 2 melts and conveys the conveying consumable 3 toward the nozzle 8. During the process, the second gear 62 rotates frictionally. When a roll of conveying consumable 3 is about to be used up, the side contact state between the conveying consumable 3 and the spare consumable 4 disappears, and the sliding plate 511 drives the rotating wheel 513 under the reaction force of the spring 54. The spare consumable 4 is pushed to move to the left and contact the second gear 62. At the same time, the movement of the sliding plate 511 drives the extrusion groove 512 to squeeze the storage capsule 71. The glue is extruded through the glue outlet pipe 72 and the glue outlet channel 73 and is applied as the spare consumable 4 moves. At the same time, the movement of the sliding plate 511 drives the rack 56 to move through the connecting rod 55, and the rack 56 drives the first gear 61 to rotate. The first gear 61 drives the second gear 62 to rotate through the crawler 63. The spare consumable 4 is forced to descend to the top of the gluing and conveying consumable 3 while the friction wheel 513 rotates. Finally, the wire feeding mechanism 2 continues to work to allow the spare consumable 4 to be hot-melt extruded. This is the use process of the automatic replenishment of the desktop 3D printer consumable wire feeding device.

[0082] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automatic replenishing desktop 3D printer consumable wire feeding device, comprising: A frame portion (1), the frame portion (1) being arranged on a wire feeding mechanism (2), the frame portion (1) being interspersed with conveying consumables (3) and spare consumables (4) which abut against each other, and the conveying consumables (3) being interspersed in a conveying channel of the wire feeding mechanism (2) so as to be conveyed to the nozzle (8); A side pusher (5), the side pusher (5) being arranged on the frame portion (1), and the side pusher (5) being against the other side of the spare consumable (4), the side pusher (5) being used to side push the spare consumable (4) to a position for conveying the consumable (3); A bottom push portion (6), the bottom push portion (6) being arranged on the frame portion (1), and the bottom push portion (6) being capable of abutting against the other side of the conveying consumable (3) or one side of the spare consumable (4), the bottom push portion (6) being used to push the spare consumable (4) downward into the conveying channel of the wire feeding mechanism (2), A glue extruding portion (7), the glue extruding portion (7) being arranged on the frame portion (1), and the glue discharge direction of the glue extruding portion (7) being toward the spare consumable material (4), and the glue extruding portion (7) being in contact with the side pushing portion (5), wherein: After the conveying consumable (3) is used up along with the wire feeding mechanism (2), the side pusher (5) pushes the spare consumable (4) to the left and squeezes the glue extruding part (7) to discharge glue to the bottom of the spare consumable (4); after the side pusher (5) moves for a certain distance, it can drive the bottom pusher (6) to rotate, so that the bottom pusher (6) pushes the spare consumable (4) downward and then adheres to the conveying consumable (3) and feeds the wire along with it; The frame portion (1) comprises a box body (11), a closed door (12) hingedly arranged on the box body (11), a partition support plate (13) arranged in the box body (11), a conveying hole (14) penetrating the partition support plate (13) and the box body (11), and a positioning hole (15) arranged on the top of the box body (11); The positioning hole (15) is connected to the conveying hole (14) at the top of the box body (11); The left end of the partition support plate (13) is in the shape of a step; The conveying consumable (3) is inserted through the conveying hole (14) and the conveying channel of the wire feeding mechanism (2) in sequence, and the spare consumable (4) is inserted through the positioning hole (15) and abuts against the top surface of the step-shaped portion of the partition support plate (13); The top surface of the partition support plate (13) and the top inner side of the box body (11) are combined to form a first track; The side push portion (5) comprises a slider (51) slidably arranged in the first track, an insertion hole (52) arranged at the side end of the box body (11), a movable column (53) inserted in the insertion hole (52) and connected to the slider (51), and a spring (54) arranged outside the movable column (53); Two ends of the spring (54) are respectively connected to the slider (51) and the inner wall of the box body (11), and the spring (54) is capable of being compressed, wherein: After the conveying consumable (3) leaves the box (11), the spring (54) can drive the slider (51) to move, so that the slider (51) pushes the spare consumable (4) against the bottom push portion (6); The sliding block (51) comprises a sliding plate (511) arranged in the first track and connected to the movable column (53), and an extrusion groove (512) arranged on the inner side of the sliding plate (511); The extrusion groove (512) has a half section that is rectangular and a half section that is a right-angled trapezoid, wherein: The sliding plate (511) can drive the extrusion groove (512) to squeeze the glue extrusion part (7) to discharge glue; A second track is provided between the rear end surface of the partition support plate (13) and the inner rear end surface of the box body (11); The side pusher (5) comprises a connecting rod (55) inserted into the second track and connected to the bottom end of the sliding plate (511), and a rack (56) arranged at the bottom end of the connecting rod (55), wherein: The sliding plate (511) can drive the rack (56) to move toward the bottom push portion (6) via the connecting rod (55); The bottom push portion (6) comprises a first gear (61) hingedly arranged inside the box (11), a second gear (62) hingedly arranged inside the box (11), and a crawler (63) movably connected to the outside of the first gear (61) and the second gear (62). The first gear (61) is capable of meshing with the rack (56); The second gear (62) is capable of contacting the spare consumable (4), wherein The rack (56) is capable of driving the first gear (61) to rotate, so that the first gear (61) rotates through the crawler (63) to drive the second gear (62) to rotate, so that the second gear (62) frictionally conveys the spare consumable (4) and then adheres to the conveying consumable (3) and conveys it through the wire feeding mechanism (2); the rotation speed of the second gear (62) is greater than the conveying speed of the wire feeding mechanism (2) for conveying the consumable (3).

2. The automatic replenishment desktop 3D printer consumable wire feeding device according to claim 1, characterized in that: The glue extruding portion (7) comprises a storage capsule (71) arranged on the box body (11), a glue outlet pipe (72) integrally connected to the storage capsule (71), and a glue outlet channel (73) arranged on the partition support plate (13) and connected to the glue outlet pipe (72); The glue outlet channel (73) has a glue outlet direction toward the bottom end of the spare consumable (4), wherein: The extrusion groove (512) is capable of squeezing the storage capsule (71) so that the glue is coated on the bottom end of the spare consumable material (4) through the glue outlet tube (72) and the glue outlet channel (73).

3. The automatic replenishment desktop 3D printer consumable wire feeding device according to claim 2, characterized in that: The bottom push portion (6) further comprises two first wheel discs (64) arranged on the first gear (61), and two second wheel discs (65) arranged on the second gear (62); The inner wall surfaces of the two first wheel discs (64) and the inner wall surfaces of the two second wheel discs (65) fit the front and rear ends of the crawler belt (63).

4. The automatic replenishment desktop 3D printer consumable wire feeding device according to claim 3, characterized in that: The sliding block (51) further comprises a rotating wheel (513) arranged on the sliding plate (511); The rotating wheel (513) is capable of contacting the conveying consumable (3) or the spare consumable (4), wherein The rotating wheel (513) is used for frictionally rotating when the consumable material (3) or the spare consumable material (4) is conveyed vertically.

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