3D printer consumable extrusion mechanism

Abstract

The utility model discloses a kind of 3D printer consumable extrusion mechanisms, it is related to 3D printer technical field, including bottom plate, the top end of bottom plate is fixedly connected with U-shaped frame, and the middle part of bottom plate is provided with sliding slot;Bearing assembly, for placing 3D printing object;Driving assembly, for moving bearing assembly;Printing assembly, for subsequent printing work;Lifting assembly, for driving printing assembly to move up and down.The utility model is by being provided with first moving block, first moving block can move left and right at the top of workbench, the inside of first moving block is provided with spring, can be with the inside of first moving block Spring is set to guide rod, the bottom of guide rod is provided with threaded hole, the bottom of first moving block is provided with fastening bolt, it is convenient to be fixedly connected with the inside of first moving block with guide rod, simultaneously, when needing to replace material barrel, fastening bolt can be quickly screwed out and be ejected from the inside of first moving block under the driving of spring, it is convenient to replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printer technical field, especially 3D printer consumptive material extrusion mechanism. BACKGROUND

[0002] 3D printer is an advanced manufacturing technology equipment, it utilizes computer aided design software to convert digital model into physical model, and the consumptive material of 3D printer includes PLA, and PLA is a new type of biodegradable material, and is mainly made of renewable plant resources such as corn, cassava and the like starch raw materials, and it obtains glucose through saccharification, and then high-purity lactic acid is prepared by the fermentation of glucose and certain strains, and finally a certain molecular weight polylactic acid is synthesized by chemical synthesis method, so as to serve as the consumptive material of 3D printer for use.

[0003] The utility model patent publication No. 201921404931.2 discloses a kind of 3D printer extrusion mechanism including barrel, barrel cover, step motor, coupling, screw rod, extruder shell, spray head, nozzle, the step motor with the screw rod is fixed connection by the coupling, the screw rod is set in the extruder shell, the spray head is set at the extruder shell discharge port, the nozzle is connected in the spray head below, the 3D printer extrusion mechanism further includes elbow, the elbow one end is threadedly connected with the barrel, the other end is threadedly connected with the extruder shell, adopt elbow connection, when barrel transports material to extruder, the resistance that pipe receives reduces a lot, such that it can use smaller air pressure while pushing harder mud, material is shortened in the process of from storage to final extrusion conveying path, so as to effectively avoid the denaturation problem of material, improve printing quality, and elbow is more convenient when cleaning.

[0004] But the above-mentioned device still has some shortcomings when actually using, more obvious is, the consumptive material extrusion mechanism of existing is directly fixed on 3D printer when using, and the consumptive material used is directly filled into extrusion mechanism for use, so that feeding can cause consumptive material to drop to the surface of printer and cause pollution, and adding consumptive material is slow, influence 3D printer use efficiency.

[0005] Therefore, it is necessary to invent a kind of 3D printer consumptive material extrusion mechanism to solve the above problems. Utility model content

[0006] The utility model discloses a 3D printer consumptive material extrusion mechanism, through setting up first moving block, first moving block can move left and right at the top of workstation, the inside of first moving block is provided with spring, can set up guide rod to the inside of first moving block, the bottom of guide rod is provided with threaded hole, the bottom of first moving block is provided with fastening bolt, convenient for the guide rod fixed connection to the inside of first moving block, when needing to replace the material barrel, can quickly spin out fastening bolt and under the driving of spring from the inside of first moving block, convenient for replacing, to solve the problem that the existing consumptive material extrusion mechanism in the background art is directly fixed on 3D printer when using, needs to fill the consumptive material used directly to extrusion mechanism and uses, and the feeding of this way is easy to cause the consumptive material to drop to the surface of printer and cause pollution, and the consumptive material is added slowly, and the use efficiency of 3D printer is affected.

[0007] According to one aspect of the present disclosure, a technical solution is provided as follows: a 3D printer consumptive material extrusion mechanism, comprising:

[0008] A bottom plate is fixedly connected with a U-shaped frame at the top end, and a sliding groove is formed in the middle part of the bottom plate.

[0009] A bearing assembly is used to place 3D printed objects.

[0010] A driving assembly is used to drive the bearing assembly to move.

[0011] A printing assembly is used for subsequent printing work.

[0012] A lifting assembly is used to drive the printing assembly to move up and down.

[0013] A horizontal moving assembly is used to drive the printing assembly to move left and right.

[0014] The printing assembly includes a material barrel, one side of which is fixedly connected with a mounting block, and the bottom end of the mounting block is fixedly connected with a guide rod.

[0015] The horizontal moving assembly includes a first moving block, the inside of which is provided with a spring, the guide rod is arranged in the inside of the first moving block, the bottom end of the guide rod is provided with a threaded hole, and the bottom end of the first moving block is provided with a fastening bolt, which is arranged correspondingly with the threaded hole.

[0016] According to at least one embodiment of the present disclosure, a 3D printer consumptive material extrusion mechanism, the top end of the material barrel is provided with a material barrel cover, the bottom end of the material barrel is fixedly connected with an elbow, one side of the material barrel is fixedly connected with a stepping motor, the bottom end of the stepping motor is fixedly connected with a connecting pipe, and the bottom end of the elbow is provided with a spray head.

[0017] According to at least one embodiment of the present disclosure, a 3D printer consumable extrusion mechanism, the inner side of the U-shaped frame is provided with a fixed plate, both sides of the fixed plate are fixedly connected with a second side plate, one side of the second side plate is fixedly connected with a first driving motor, the output end of the first driving motor is drivingly connected with a first lead screw, and the first moving block is threadedly connected to the inner side of the first lead screw.

[0018] According to at least one embodiment of the present disclosure, a 3D printer consumable extrusion mechanism, the lifting assembly comprises an electric telescopic rod, the electric telescopic rod is fixedly connected to the top end of the U-shaped frame, the rear side of the fixed plate is fixedly connected with a bearing plate, and the output end of the electric telescopic rod is fixedly connected to the top end of the bearing plate.

[0019] According to at least one embodiment of the present disclosure, a 3D printer consumable extrusion mechanism, the bearing assembly comprises a workbench, the bottom end of the workbench is fixedly connected with a connecting block, the workbench is arranged at the top end of the bottom plate, and the connecting block is slidingly connected to the inner side of the sliding groove.

[0020] According to at least one embodiment of the present disclosure, a 3D printer consumable extrusion mechanism, both sides of the bottom end of the bottom plate are fixedly connected with a first side plate, the driving assembly comprises a second driving motor, and the second driving motor is fixedly connected to one side of the first side plate.

[0021] According to at least one embodiment of the present disclosure, a 3D printer consumable extrusion mechanism, the output end of the second driving motor is drivingly connected with a second lead screw, the second lead screw is arranged at the bottom end of the bottom plate, and the other end of the second lead screw is rotatably arranged at the inner side of the other first side plate.

[0022] According to at least one embodiment of the present disclosure, a 3D printer consumable extrusion mechanism, the outer side of the second lead screw is threadedly connected with a fixed block, and the fixed block is fixedly connected to the bottom end of the connecting block.

[0023] The technical effects and advantages of the present application are as follows:

[0024] (1) The first moving block can move left and right on the top end of the workbench, the inner side of the first moving block is provided with a spring, the guide rod is arranged in the first moving block, the bottom end of the guide rod is provided with a threaded hole, the bottom end of the first moving block is provided with a fastening bolt, the guide rod can be fixedly connected to the inner side of the first moving block, and when the material barrel needs to be replaced, the fastening bolt can be quickly unscrewed and popped out from the inner side of the first moving block under the driving of the spring, so that the replacement is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

[0026] Figure 1 is a schematic diagram of the overall structure of a 3D printer consumable extrusion mechanism according to an embodiment of the present disclosure.

[0027] Figure 2 is a schematic diagram of the main body structure of a fixed plate in a 3D printer consumable extrusion mechanism according to an embodiment of the present disclosure.

[0028] Figure 3 is a schematic diagram of the main body structure of a workbench in a 3D printer consumable extrusion mechanism according to an embodiment of the present disclosure.

[0029] Figure 4 is a schematic diagram of the main body structure of a material bucket in a 3D printer consumable extrusion mechanism according to an embodiment of the present disclosure.

[0030] Figure 5 is a schematic diagram of the internal structure of a mounting block in a 3D printer consumable extrusion mechanism according to an embodiment of the present disclosure.

[0031] The reference numerals in the drawings are specifically as follows:

[0032] 1, base plate; 11, U-shaped frame; 12, sliding groove; 13, first side plate;

[0033] 2, electric telescopic rod;

[0034] 3, fixed plate; 31, bearing plate; 32, second side plate;

[0035] 4, workbench; 41, connecting block; 42, fixed block;

[0036] 5, material bucket; 51, material bucket cover; 52, stepping motor; 53, elbow; 54, spray head; 55, connecting pipe; 56, mounting block; 57, guide rod; 571, threaded hole;

[0037] 6, first drive motor; 61, first lead screw; 62, first moving block; 621, spring; 622, fastening bolt;

[0038] 7, second drive motor; 71, second lead screw. DETAILED DESCRIPTION

[0039] As Figures 1-5As shown, the 3D printer consumable extrusion mechanism of the present disclosure can comprise: a base plate 1, the top end of the base plate 1 is fixedly connected with a U-shaped frame 11, a sliding groove 12 is formed in the middle of the base plate 1; a bearing assembly for placing 3D printed objects; a driving assembly for moving the bearing assembly; a printing assembly for subsequent printing work; a lifting assembly for moving the printing assembly up and down; and a transverse moving assembly for moving the printing assembly left and right.

[0040] As shown in Figure 2 , Figure 4 and Figure 5 , in the present disclosure, the printing assembly comprises a hopper 5, one side of the hopper 5 is fixedly connected with a mounting block 56, the bottom end of the mounting block 56 is fixedly connected with a guide rod 57;

[0041] The transverse moving assembly comprises a first moving block 62, the inner side of the first moving block 62 is provided with a spring 621, the guide rod 57 is arranged on the inner side of the first moving block 62, the bottom end of the guide rod 57 is provided with a threaded hole 571, the bottom end of the first moving block 62 is provided with a fastening bolt 622, and the fastening bolt 622 and the threaded hole 571 are arranged correspondingly.

[0042] Therefore, by arranging the first moving block 62, the first moving block 62 can move left and right on the top end of the workbench 4, the inner side of the first moving block 62 is provided with a spring 621, the guide rod 57 can be arranged on the inner side of the first moving block 62, the bottom end of the guide rod 57 is provided with a threaded hole 571, and the bottom end of the first moving block 62 is provided with a fastening bolt 622, so as to facilitate the fixation of the guide rod 57 on the inner side of the first moving block 62. When the hopper 5 needs to be replaced, the fastening bolt 622 can be quickly unscrewed and popped out from the inner side of the first moving block 62 under the action of the spring 621, which facilitates replacement. In specific use, when the hopper 5 needs to be installed and fixed, the guide rod 57 is inserted into the inner side of the first moving block 62, the spring 621 is squeezed and continues to move downward, so that the first moving block 62 can be threadedly connected to the inner side of the threaded hole 571, and the guide rod 57 is fixed on the inner side of the first moving block 62. When the guide rod 57 needs to be taken out from the inner side of the first moving block 62, the fastening bolt 622 is loosened, so that the guide rod 57 slowly moves upward under the action of the spring 621, thereby making the guide rod 57 separate from the fixation of the fastening bolt 622, facilitating the taking out of the guide rod 57 from the inner side of the first moving block 62, and facilitating the quick replacement of the hopper 5.

[0043] As shown in Figure 4 , in a preferred embodiment, the top end of the hopper 5 is provided with a hopper cover 51, the bottom end of the hopper 5 is fixedly connected with an elbow 53, one side of the hopper 5 is fixedly connected with a stepping motor 52, the bottom end of the stepping motor 52 is fixedly connected with a connecting pipe 55, and the bottom end of the elbow 53 is provided with a spray head 54.

[0044] Thus, by setting the material bucket 5, the inner side of the material bucket 5 is provided with the consumable polylactic acid for 3D printing, by setting the elbow 53, the polylactic acid in the material bucket 5 can flow along the elbow 53, the inner side of the connecting pipe 55 is provided with a screw rod for driving the polylactic acid to move, the screw rod is in transmission connection with the stepping motor 52, so that the polylactic acid can be effectively extruded from the nozzle 54, and the subsequent printing work is completed.

[0045] As shown in Figure 1 and Figure 2 , in the present disclosure, the inner side of the U-shaped frame 11 is provided with a fixed plate 3, both sides of the fixed plate 3 are fixedly connected with a second side plate 32, one side of the second side plate 32 is fixedly connected with a first driving motor 6, the output end of the first driving motor 6 is in transmission connection with a first lead screw 61, and a first moving block 62 is threadedly connected to the inner side of the first lead screw 61.

[0046] Thus, by setting the second side plate 32, the second side plate 32 is provided with two and symmetrically fixedly connected to both sides of the fixed plate 3, the first driving motor 6 is fixedly connected to the outer side of one of the second side plates 32, the first lead screw 61 is in transmission connection with the output end of the first driving motor 6, the other end of the first lead screw 61 is rotatably arranged on the inner side of the other second side plate 32, and the first moving block 62 is threadedly connected to the outer side of the first lead screw 61, so that the rotation of the first lead screw 61 can effectively drive the second side plate 32 to move.

[0047] As shown in Figure 1 and Figure 2 , in one preferred embodiment, the lifting assembly comprises an electric telescopic rod 2, the electric telescopic rod 2 is fixedly connected to the top end of the U-shaped frame 11, the rear side of the fixed plate 3 is fixedly connected with a bearing plate 31, and the output end of the electric telescopic rod 2 is fixedly connected to the top end of the bearing plate 31.

[0048] Thus, by setting the electric telescopic rod 2, the output end of the electric telescopic rod 2 is fixedly connected to the top end of the bearing plate 31, so that the electric telescopic rod 2 can effectively drive the bearing plate 31 to move up and down, the bearing plate 31 is fixedly connected with the fixed plate 3, the outer side of the fixed plate 3 is provided with the material bucket 5, so that the material bucket 5 can be effectively driven to move up and down, and the subsequent printing work is completed.

[0049] As shown in Figure 1 and Figure 3 , in the present disclosure, the bearing assembly comprises a workbench 4, the bottom end of the workbench 4 is fixedly connected with a connecting block 41, the workbench 4 is arranged on the top end of the bottom plate 1, and the connecting block 41 is slidably connected to the inner side of the sliding groove 12.

[0050] Thus, by setting the workbench 4, the workbench 4 can slide on the top end of the bottom plate 1, and the top end of the workbench 4 can be used for 3D printing work.

[0051] As Figure 1 and Figure 3 As shown in the disclosure, the two sides of the bottom end of the bottom plate 1 are fixedly connected with the first side plate 13, the driving assembly comprises a second driving motor 7, the second driving motor 7 is fixedly connected to one side of the first side plate 13, the output end of the second driving motor 7 is drivingly connected with a second screw rod 71, the second screw rod 71 is arranged at the bottom end of the bottom plate 1, the other end of the second screw rod 71 is rotatably arranged at the inner side of the other first side plate 13, the outer side of the second screw rod 71 is threadedly connected with a fixed block 42, and the fixed block 42 is fixedly connected to the bottom end of the connecting block 41.

[0052] Therefore, by arranging the first side plate 13, the first side plate 13 is symmetrically arranged with two and is fixedly connected to the two sides of the bottom end of the bottom plate 1, the second driving motor 7 is fixed to the outer side of one of the first side plates 13, the second screw rod 71 is drivingly connected with the second driving motor 7, the other end of the second screw rod 71 is rotatably arranged at the inner side of the other first side plate 13, the fixed block 42 is threadedly connected to the outer side of the second screw rod 71, the second screw rod 71 can effectively drive the fixed block 42 to move in rotation, and the workbench 4 is fixedly connected to the top end of the fixed block 42 through the connecting block 41, so that the fixed block 42 can effectively drive the workbench 4 to move.

[0053] It should be understood by those skilled in the art that the above embodiments are only for clearly illustrating the disclosure, but not for limiting the scope of the disclosure. Other changes or modifications can be made on the basis of the above disclosure, and the changes or modifications are still within the scope of the disclosure.

Claims

1. A 3D printer consumable extrusion mechanism, characterized in that, Include: The bottom plate (1), the top end of the bottom plate (1) is fixedly connected with U-shaped frame (11), the middle part of the bottom plate (1) is provided with sliding slot (12); Bearing assembly for placing 3D printed objects; Driving assembly for driving the bearing assembly to move; Printing assembly for subsequent printing work; Lifting assembly for driving the printing assembly to move up and down; And Horizontal moving assembly for driving the printing assembly to move left and right; The printing assembly includes a bucket (5), one side of the bucket (5) is fixedly connected with a mounting block (56), the bottom end of the mounting block (56) is fixedly connected with a guide rod (57); The horizontal moving assembly includes a first moving block (62), the inner side of the first moving block (62) is provided with a spring (621), the guide rod (57) is arranged on the inner side of the first moving block (62), the bottom end of the guide rod (57) is provided with a threaded hole (571), the bottom end of the first moving block (62) is provided with a fastening bolt (622), and the fastening bolt (622) and the threaded hole (571) are arranged correspondingly.

2. The 3D printer consumable extrusion mechanism of claim 1, wherein: The top end of the bucket (5) is provided with a bucket cover (51), the bottom end of the bucket (5) is fixedly connected with an elbow (53), one side of the bucket (5) is fixedly connected with a stepping motor (52), the bottom end of the stepping motor (52) is fixedly connected with a connecting pipe (55), and the bottom end of the elbow (53) is provided with a spray head (54).

3. A 3D printer consumable extrusion mechanism according to claim 2, wherein: The inner side of the U-shaped frame (11) is provided with a fixed plate (3), both sides of the fixed plate (3) are fixedly connected with a second side plate (32), one side of the second side plate (32) is fixedly connected with a first drive motor (6), the output end of the first drive motor (6) is drivingly connected with a first lead screw (61), and the first moving block (62) is threadedly connected to the inner side of the first lead screw (61).

4. The 3D printer consumable extrusion mechanism of claim 3, wherein: The lifting assembly includes an electric telescopic rod (2), the electric telescopic rod (2) is fixedly connected to the top end of the U-shaped frame (11), the rear side of the fixed plate (3) is fixedly connected with a bearing plate (31), and the output end of the electric telescopic rod (2) is fixedly connected to the top end of the bearing plate (31).

5. A 3D printer consumable extrusion mechanism according to claim 4, wherein: The bearing assembly includes a workbench (4), the bottom end of the workbench (4) is fixedly connected with a connecting block (41), the workbench (4) is arranged on the top end of the bottom plate (1), and the connecting block (41) is slidingly connected to the inner side of the sliding slot (12).

6. A 3D printer consumable extrusion mechanism according to claim 5, wherein: Both sides of the bottom end of the bottom plate (1) are fixedly connected with a first side plate (13), the driving assembly includes a second drive motor (7), and the second drive motor (7) is fixedly connected to one side of the first side plate (13).

7. A 3D printer consumable extrusion mechanism according to claim 6, wherein: The output end of the second drive motor (7) is drivingly connected with a second lead screw (71), the second lead screw (71) is arranged at the bottom end of the bottom plate (1), and the other end of the second lead screw (71) is rotatably arranged at the inner side of the other first side plate (13).

8. A 3D printer consumable extrusion mechanism according to claim 7, wherein: The outer side of the second lead screw (71) is threadedly connected with a fixed block (42), and the fixed block (42) is fixedly connected to the bottom end of the connecting block (41).

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