CN216100447U - Printer head's installation device and 3D printing apparatus - Google Patents

Abstract

A mounting device of a printing head belongs to the technical field of additive manufacturing and is used for solving the problem that the mounting and debugging of the printing head in equipment for additive manufacturing are complex; the adjusting assembly is used for adjusting the distance between the printing head and the powder spreading surface; the base component is provided with a cavity capable of containing the printing head, and the base component is provided with a plurality of positioning structures for supporting and positioning the printing head. The utility model leads the installation of the printing head for the 3D printing equipment to be simpler and more convenient, and leads the routine adjustment in maintenance and operation to be more convenient and simpler, thus greatly reducing the manufacturing cost and the operation and maintenance cost of the equipment.

Description

Printer head's installation device and 3D printing apparatus

Technical Field

The utility model relates to the technical field of additive manufacturing, in particular to equipment for additive manufacturing.

Background

The motion system of current additive manufacturing equipment adopts module or linear motor form. Powder easily enters the module and/or the linear motor in the operation process of the equipment, so that the module and/or the linear motor can be damaged, and corresponding protection is arranged to prevent the powder from entering the module and/or the linear motor in the operation process of the equipment, so that the installation and maintenance of the equipment become complicated; meanwhile, the equipment volume is large. In addition, the installation and fixation of the printing head are realized by filling gaps between the stop block and the printing head with thin copper sheets and steel sheets with different thicknesses so as to achieve the function of fixing the printing head; during each installation, thin metal sheets with different shapes and thicknesses are tried, and the optimal thickness is found to be inserted between the printing head and the stop block so as to ensure that the printing head is firmly fixed. Another print head fixing method is: the ball plunger module is used for applying force to the printing head, and the printing head is fixed on the mounting seat. But this is higher to the stroke of ball plunger module and its processing requirement to the dismouting is comparatively loaded down with trivial details.

Disclosure of Invention

In view of the problems of large equipment volume and complex installation and maintenance caused by the requirement of the powder on the operation protection of the printing equipment, a need exists for providing a printing head installation mechanism for 3D printing equipment, and the 3D printing equipment achieves the purposes of convenience in printing head installation, reduction in the whole equipment volume and reduction in manufacturing cost.

The mounting device of the printing head comprises a base assembly, a connecting assembly and an adjusting assembly, wherein the base assembly is arranged on the connecting assembly, one end of the connecting assembly is connected with one end of the adjusting assembly, and the adjusting assembly is arranged on one side of the connecting assembly and is connected with the connecting assembly; the base component is provided with a cavity capable of containing the printing head, so that the positioning and the fixing of the printing head are realized.

Further, the base assembly is a frame-type base assembly, the frame-type base assembly comprises a frame-type fixing seat, a rotary gland and an elastic clamping piece, the frame-type fixing seat is of a cuboid structure with a certain opening surface, the printing head is arranged in the frame-type fixing seat, the rotary gland is arranged at the upper part of the frame-type fixing seat, the rotary gland can realize two states of turning up and buckling down, and the rotary gland is used for pressing the printing head so as to give vertical downward fixed pressure to the printing head; the elastic clips symmetrically arranged on the two side walls of the frame type fixed seat are used for giving a fixed pressure to the printing head in the horizontal direction, so that the stable connection between the printing head and the base assembly is ensured.

More closely, inside bottom and the lateral wall of frame fixing base are equipped with respectively and beat a plurality of location structures of printer head, under the effect of rotatory gland, beat printer head can obtain accurate location and stable clamping power in the vertical direction.

Furthermore, the outside bottom of frame fixing base is equipped with a plurality of location structure of coupling assembling location, and the location structure that sets up in the outside bottom of frame fixing base and be used for fixing a position coupling assembling is a plurality of bosss.

More closely, elasticity fastener can make and beat printer head and set up the printer head location structure in close contact with on frame fixing base lateral wall, elasticity fastener joint is in on the border of frame fixing base lateral wall, the shell fragment is beaten printer head's the cavity that holds towards.

Further, the connecting assembly comprises a connecting piece and a protecting piece, the connecting piece and the protecting piece are of a plate type structure integrally, the protecting piece is arranged below the connecting piece, the connecting piece is of an L-shaped structure, the protecting piece is arranged on the lower face of the bottom of the L-shaped structure, the L-shaped side wall of the connecting piece is connected with one end of the adjusting assembly, the base assembly is located on the L-shaped connecting piece, and the connecting assembly is used for supporting the base assembly.

Furthermore, the connecting piece is provided with a plurality of positioning grooves matched with the outer bottom of the frame type fixed seat.

Furthermore, a window for accommodating the jet orifice of the printing head is formed in the middle of the L-shaped connecting piece and the middle of the protecting piece in a corresponding position, namely, a printing operation space of the printing head is reserved, so that the situation that the jet orifice is directly contacted with a powder laying surface to cause abrasion and blockage of the printing head is avoided, and the effect of protecting the jet orifice of the printing head is achieved.

Furthermore, two symmetrically arranged bulges used for being connected with the frame type fixed seat are arranged on the L-shaped arm of the connecting piece, so that the base component and the connecting component are firmly connected.

The adjusting part is L type plate, L type plate adjusting part's horizontal arm links to each other with 3D printing apparatus's operating mechanism, L type plate adjusting part's vertical arm and coupling assembling in the vertical arm of connecting piece links to each other to with both fixed connection, the operating mechanism is through the drive adjusting part realizes the drive to printer head, also realizes the action of printing the operation.

Furthermore, the vertical arm of the adjusting component of the L-shaped plate and the vertical arm of the connecting piece in the connecting component are both provided with a plurality of positioning holes, and the two are connected on different positioning holes, so that the relative distance between the printing head and the forming space can be adjusted.

As an improvement of the technical solution, the base assembly is a plate-type base assembly, the plate-type base assembly includes a plate-type fixing seat, a plate-type pressing plate and an elastic clamping member, the plate-type fixing seat is provided with a first positioning structure and a second positioning structure for supporting and positioning the printing head, the first positioning structure is used for supporting the printing head, so that the printing head has a certain distance with the powder spreading surface and is used for supporting the printing head, that is, the printing head is located on the first positioning structure; the second positioning structure is a two-stage step structure and is used for forming fastening force in the opposite direction relative to the first positioning structure for the printing head, so that the printing head can be stably arranged in the plate-type fixed seat. The plate-shaped pressing plate is buckled on the plate-shaped fixing seat and is fixed by adopting a bolt; the elastic clamping piece is arranged on one side of the plate-shaped pressing plate, which is opposite to the plate-shaped fixing seat, and is used for clamping the printing head, so that the printing head can be firmly attached to the plate-shaped fixing seat. Furthermore, in order to improve the fixing or positioning effect on the print head, a third positioning structure with an inclined plane is further arranged on the plate-type pressing plate, and the third positioning structure exerts clamping and pressing force on the print head. Furthermore, the first positioning structure is divided into two parts, and a space reserved between the two parts is an ejection window of the ejection opening of the printing head; the first locating structure may also be provided with a surrounding structure to prevent outward deflection of the printhead.

The technical scheme of the utility model has the beneficial effects that: the mounting device of the utility model simplifies the problem that the positioning and the distance need to be continuously adjusted in the mounting process of the printing head by arranging the base component, improves the mounting efficiency of the printing head and reduces the operation difficulty of the printing head maintenance.

Drawings

FIG. 1 is a schematic view of a mounting device for a printhead;

FIG. 2 is a schematic view of the base assembly;

FIG. 3 is a schematic view of a spring card configuration;

FIG. 4 is a schematic view of a linkage assembly configuration;

FIG. 5 is a schematic axial side view of another alternative mounting arrangement for a printhead;

FIG. 6 is a schematic view of a plate-type platen configuration;

FIG. 7 is a schematic view of a plate-type fixing base;

among them, 100-frame type susceptor assembly; 110-frame type permanent seat; 120-rotating gland; 130-elastic fastener; 200-a connection assembly; 210-a connector; 220-a protective element; 300-an adjustment assembly; 400-a plate-type base member; 410-plate type fixing seat; 411-a first positioning structure; 412-a second positioning structure; 420-plate type press plate; 421-a third positioning structure; 500-print head.

Detailed Description

In order to more clearly illustrate the technical solutions of the present invention, the technical solutions of the present invention are described in detail with reference to the accompanying drawings, and it is obvious that the following descriptions are some exemplary embodiments of the present invention, and it is obvious for those skilled in the art that other solutions can be obtained according to the embodiments without creative efforts.

The utility model provides a 3D printing apparatus, includes the print head subassembly, the print head subassembly includes actuating mechanism, installation device is used for the bearing and fixes the printer head, actuating mechanism is used for the drive to beat printer head and accomplishes the operation of beating printer head, installation device with actuating mechanism links to each other, actuating mechanism is through the drive installation device to the drive beat printer head motion.

The first implementation mode comprises the following steps:

as shown in fig. 1 to 4, a mounting apparatus of a printhead 500, which includes a frame-type base assembly 100, a connection assembly 200, and an adjustment assembly 300; the frame-type base assembly 100 is seated on the connection assembly 200, and the frame-type base assembly and the connection assembly are fixed by bolts; one end of the adjusting assembly 300 is connected to the connecting assembly 200 by a bolt, and the other end of the adjusting assembly 300 is connected to the driving mechanism in the print head 500 assembly. The frame type base assembly 100 comprises a frame type fixing seat 110, the frame type fixing seat 110 is a cuboid structure with a certain opening surface, the internal space of the cuboid structure is a containing space of the printing head 500 and is used for supporting and positioning the printing head 500, a window is arranged at the bottom of the frame type fixing seat 110, and the window is used for ejecting ink from an ejection port of the printing head 500 to a powder spreading layer surface; in order to enable the frame type fixing seat 110 to be stably seated on the connecting assembly 200, concave-convex matching mechanisms are respectively arranged on the bottom of the frame type fixing seat 110 and the connecting assembly 200, so that the fixing and fixing functions are achieved; the connecting assembly 200 comprises a connecting member 210 and a protecting member 220, wherein the connecting member 210 is a plate member with an L-shaped structure, the frame-type fixing seat 110 is located in the L-shaped structure, and the two are positioned by a concave-convex structure on a bottom arm of the L-shaped structure and fixedly connected by a side wall of the L-shaped structure, so that the frame-type fixing seat 110 is stably connected to the connecting assembly 200; the protection member 220 is disposed on the other surface opposite to the surface connected to the frame-type fixing base 110, and serves to reinforce the bottom arm of the connecting member 210 and increase the distance between the ejection opening window and the powder spreading surface, that is, windows are also disposed on the bottom arm of the connecting member 210 and the protection member 220 opposite to the window on the frame-type fixing base 110, and the three windows constitute a ink drop window with a certain thickness for the printing head 500 to eject ink; the adjusting component 300 is also of an L-shaped structure, one end of the adjusting component 300 is connected with the vertical arm of the connecting component 210, and the other end is connected with the driving mechanism of the printing head 500 component; more closely, be equipped with a plurality of groups of through-holes of mutually supporting on adjusting part 300 and connecting piece 210 interconnect's the face, fix both through the through-hole of difference, then can realize spreading the regulation of powder face distance relatively to printer head 500, reduced the degree of difficulty that the powder face distance was adjusted relatively to printer head 500 by a wide margin.

As an optimization of this embodiment, in order to prevent the print head 500 from shaking up and down or shifting during operation, the frame-type holder 110 further includes a rotary gland 120, and the rotary gland 120 is disposed on the top of the frame-type holder 110, specifically, the rotary gland 120 is connected to the frame-type holder 110 through a rotary shaft, so that the rotary gland 120 can be rotated upwards to open, so as to facilitate placing the print head 500 into the frame-type holder 110; in order to improve the pressing effect of the rotary gland 120 on the print head 500, the surface of the rotary gland 120 contacting the print head 500 is set to be an inclined surface, and the rotary shaft has a locking function.

As another optimization of this embodiment, in order to prevent the printhead 500 from shaking or shifting left and right during operation, the frame holder 110 further includes elastic clips 130, and the elastic clips 130 are disposed on both sidewalls of the frame holder 110 and are symmetrically positioned.

As another optimization of the present embodiment, a positioning boss of the print head 500 is provided at the bottom inside the frame type fixing base 110 to fix the print head 500 at a certain position; an elastic pressing piece is arranged on the inner wall of the side vertical arm opposite to the connecting piece 210 so as to tightly press the printing head 500 towards the direction of the positioning boss, thereby avoiding the shaking and displacement in the corresponding direction.

Example two:

as shown in fig. 5 to 7, the plate-type base assembly 400 includes a plate-type fixing base 410 and a plate-type pressing plate 420, which are fastened together and then bolted together to form the plate-type base assembly 400 having a space for accommodating a print head 500. The plate-type fixing seat 410 is provided with a first positioning structure 411 and a second positioning structure 412 for supporting and positioning the printing head 500, the first positioning structure 411 is used for supporting the printing head 500, so that the printing head 500 and the powder spreading surface have a certain distance and are used for supporting the printing head 500, namely, the printing head 500 is located on the first positioning structure 411; the second positioning structure 412 is a step structure for providing a fastening force and a supporting force to the print head 500 in opposite directions with respect to the first positioning structure 411, so that the print head 500 can be stably disposed in the plate-shaped fixing base 410. Further, the first positioning structure 411 is divided into two parts, and a space left between the two parts is an ejection window reserved for an ejection port of the print head 500; the first positioning structure 411 may also be provided with a surrounding structure to prevent the print head 500 from being outwardly biased.

As an optimization of this embodiment, in order to improve the fixing or positioning effect of the print head 500, a third positioning structure 421 having an inclined surface is further disposed on the plate-shaped pressing plate 420, and the third positioning structure 421 applies a clamping force to the print head 500.

As another optimization of this embodiment, the plate-type pressing plate 420 is further provided with a resilient latch 130 to press the print head 500 onto the plate-type fixing base 410.

By implementing the technical scheme of the utility model, the printing head for the 3D printing equipment is simpler and more convenient to install, and is more convenient and simpler to maintain and carry out routine adjustment in operation, so that the manufacturing cost and the operation and maintenance cost of the equipment are greatly reduced.

The above embodiment is only a description of a typical application of the technical solution of the present invention, and may be reasonably expanded without creative efforts.

Claims (10)

1. The mounting device of the printing head is characterized by comprising a base assembly, a connecting assembly (200) and an adjusting assembly (300), wherein the base assembly is arranged on the connecting assembly (200), one end of the connecting assembly (200) is connected with one end of the adjusting assembly (300), and the other end of the adjusting assembly (300) is connected with a 3D printing device; the adjusting assembly (300) is used for adjusting the distance between the printing head (500) and the powder spreading surface; the base component is provided with a cavity capable of accommodating the printing head (500), and the base component is provided with a plurality of positioning structures for supporting and positioning the printing head (500).

2. The mounting device for the print head according to claim 1, wherein the base assembly is a frame type base assembly (100), the frame type base assembly (100) comprises a frame type fixing seat (110), the frame type fixing seat (110) is a cuboid structure with a certain opening surface, and the inner space of the cuboid structure is a containing space of the print head (500); the bottom of the frame type fixed seat (110) is provided with a window.

3. The printhead mounting apparatus according to claim 2, wherein the bottom of the frame holder (110) and the connecting member (200) are respectively provided with a male-female engagement mechanism.

4. The mounting apparatus for a printhead according to claim 3, wherein the frame holder (110) further comprises a rotary gland (120), and the rotary gland (120) is disposed on top of the frame holder (110) through a rotary shaft.

5. The mounting apparatus for a printhead according to claim 4, wherein the frame holder (110) further comprises elastic snaps (130), the elastic snaps (130) being disposed on both sidewalls of the frame holder (110) at symmetrical positions.

6. The mounting apparatus for a printhead according to claim 2, wherein the connecting assembly (200) comprises a connecting member (210) and a protecting member (220), the connecting member (210) is a plate member having an L-shaped structure, the frame type fixing base (110) is seated in the L-shaped structure, and the connecting member and the frame type fixing base are positioned by a concave-convex structure on a bottom arm of the L-shaped structure and fixedly connected by a side wall of the L-shaped structure; the protection piece (220) is arranged on the other surface opposite to the other surface connected with the frame type fixed seat (110), windows are also arranged on the bottom arm of the connecting piece (210) and the protection piece (220) corresponding to the windows on the frame type fixed seat (110), and the three layers of windows form an ink falling window with a certain thickness for ejecting ink by the printing head (500).

7. The mounting device for the printing head according to claim 6, wherein a plurality of sets of through holes matched with each other are arranged on the surface where the adjusting component (300) is connected with the connecting piece (210), and the adjusting component (300) and the connecting piece (210) are fixed through different through holes, so that the distance between the printing head (500) and the powder spreading surface can be adjusted.

8. The mounting device for the print head according to claim 6, wherein the bottom inside the frame type fixing base (110) is provided with a positioning boss of the print head (500), and the positioning boss is used for fixing the print head (500) at a determined position; and an elastic pressing sheet is arranged on the inner wall of the side vertical arm opposite to the connecting piece (210) so as to tightly press the printing head (500) towards the direction of the positioning boss.

9. The mounting device for the print head according to claim 1, wherein the base assembly is a plate-type base assembly (400), the plate-type base assembly (400) comprises a plate-type fixing seat (410) and a plate-type pressing plate (420), and the plate-type fixing seat (410) and the plate-type pressing plate (420) are fastened and then connected through a bolt; the plate-type fixed seat (410) is provided with a first positioning structure (411) and a second positioning structure (412) for supporting and positioning the printing head (500); the first positioning structure (411) is used for supporting the printing head (500), the first positioning structure (411) is divided into two parts, and a space reserved between the two parts is an ejection window reserved for an ejection opening of the printing head (500); the second positioning structure (412) is a step structure and is used for forming fastening force and supporting force of the printing head (500) relative to the first positioning structure (411) in the opposite direction, so that the printing head (500) can be stably arranged in the plate-type fixed seat (410).

10. A 3D printing device, characterized by comprising a print head (500) according to any of claims 1-9 and a mounting means for the print head.

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