CN212242156U - Height switching mechanism and double-nozzle switching device - Google Patents
Height switching mechanism and double-nozzle switching device Download PDFInfo
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- CN212242156U CN212242156U CN202020122456.6U CN202020122456U CN212242156U CN 212242156 U CN212242156 U CN 212242156U CN 202020122456 U CN202020122456 U CN 202020122456U CN 212242156 U CN212242156 U CN 212242156U
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Abstract
The utility model provides a high switching mechanism and double spray auto-change over device, including casing, rotation module, guide block and conversion module, thereby the rotary motion through rotation module reciprocates conversion module and realizes conversion module's high-low position switching. The beneficial effects of the utility model reside in that: the utility model provides a height switching mechanism, this mechanism simple structure, easily installation and dismantlement are maintained, can make conversion module reciprocate through rotating the roating seat, have very high practicality and ease for use, are applied to dual spray 3D printing apparatus with this mechanism, can let when the printer switches the shower nozzle, let two shower nozzles produce the difference in height, reduce the influence each other between the shower nozzle, avoid colliding with of shower nozzle and printing material, indirectly prolonged the life of shower nozzle.
Description
Technical Field
The utility model belongs to the technical field of 3D printing device technique and specifically relates to indicate a high switching mechanism and double spray switching device.
Background
Most of printing heads of the existing 3D printers only have one nozzle, so that only one raw material wire can be called in the printing process. However, as the process requirements of workpieces are higher and higher, a plurality of raw materials are needed to be used when some workpieces are printed, and for the problem, a dual-nozzle structure is adopted in the market, and two nozzles with consistent heights are fixed in parallel to complete 3D printing, but the structure has the following problems:
because the heights of the two spray heads are consistent, when one spray head is moved to a position needing to work, the non-working spray head is extremely easy to collide with a printed workpiece, and meanwhile, the non-working spray head can collide with a printed uncured model in the printing process, so that errors of materials and colors and even deformation of the workpiece are caused, the printing precision is influenced, and meanwhile, the service life of the spray head is shortened.
The double-nozzle assembly is relatively large in whole and is consistent in height, and the effective printing space of a single nozzle is reduced due to the design scheme of the two nozzles which are fixed in parallel, a dead angle with a certain distance is formed between the nozzles which are fixedly installed in parallel, and the effective printing space is reduced again.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provided are a height switching mechanism and a dual head switching device which have a simple structure and can realize rapid height switching.
In order to solve the technical problem, the utility model discloses a technical scheme be: a height switching mechanism comprises a shell, a rotating module, a guide block and a conversion module, wherein the rotating module comprises a rotating seat and a rotating driver, a mounting seat is arranged on the bottom surface of the rotating seat, the mounting seat is connected with an output shaft of the rotating driver, the rotating driver is fixedly connected with the shell, the rotating seat comprises a first surface and a second surface, the second surface and the first surface are arranged at an angle, a pressing part and a restoring part are arranged on the second surface, the pressing part is arranged on one side far away from the first surface, and the restoring part is arranged on one side close to the first surface;
the guide block is fixed on the shell and provided with a guide through hole arranged in the vertical direction, and the lower end of the guide block is provided with a support step;
the conversion module set up in one side of rotatory module, the conversion module includes conversion piece, transfer bar and reset spring, the conversion piece is close to one side of rotatory module is equipped with the depression bar, the depression bar with the second surface butt of roating seat, the lower extreme of conversion piece with the top of transfer bar is connected, the lower extreme of transfer bar is equipped with connecting portion, the transfer bar is inserted and is located the direction through-hole of guide block, the transfer bar can be followed direction through-hole reciprocating motion, reset spring cup joint in the guide block.
Furthermore, the guide blocks and the conversion modules are respectively provided with two guide blocks, the two guide blocks are arranged on two sides of the rotation module, and the two conversion modules are arranged on two sides of the rotation module.
Further, the conversion rod is in clearance fit with the guide through hole of the guide block.
Furthermore, the conversion block is provided with a vertical conversion block through hole, and the conversion rod is provided with a conversion rod through hole corresponding to the conversion block through hole.
Further, the rotary driver is a steering engine.
Further, still include the upper cover, the upper cover set up in the top of casing, the first surface of roating seat is equipped with the erection column, the upper cover corresponds the erection column of roating seat is equipped with the recess, the erection column of roating seat can rotate in the recess.
Furthermore, a thrust bearing is arranged in the groove and sleeved on the mounting column.
Further, the housing includes a rotating module accommodating cavity for accommodating the rotating module and a converting module accommodating cavity for accommodating the converting module.
The utility model discloses still relate to a dual spray auto-change over device, including the above-mentioned arbitrary item high switching mechanism, the lower extreme of the change-over lever of high switching mechanism's conversion module respectively is connected with a 3D and prints the shower nozzle subassembly.
Furthermore, the 3D printing nozzle assembly is provided with a feeding opening, the feeding opening is communicated with a rod changing through hole of a conversion rod of the conversion module, and an upper cover through hole is formed in the upper cover corresponding to the conversion block through hole.
The beneficial effects of the utility model reside in that: the utility model provides a height switching mechanism, this mechanism simple structure, easily installation and dismantlement are maintained, can make conversion module reciprocate through rotating the roating seat, have very high practicality and ease for use, are applied to dual spray 3D printing apparatus with this mechanism, can let when the printer switches the shower nozzle, let two shower nozzles produce the difference in height, reduce the influence each other between the shower nozzle, avoid colliding with of shower nozzle and printing material, indirectly prolonged the life of shower nozzle.
Drawings
The specific structure of the present invention is detailed below with reference to the accompanying drawings:
fig. 1 is a schematic view of the overall structure of the height switching mechanism of the present invention;
fig. 2 is an exploded view of the height switching mechanism of the present invention;
fig. 3 is a schematic structural view of the rotary base of the present invention;
fig. 4 is a schematic view of the overall structure of the dual nozzle switching device of the present invention;
fig. 5 is a schematic cross-sectional structure view of the dual nozzle switching device of the present invention;
fig. 6 is a schematic structural view of a heat dissipation module of the dual nozzle switching device of the present invention;
10-a rotating seat; 11-a first surface; 12-a second surface; 13-a recovery section; 14-a pressing part; 15-a mounting seat; 16-mounting posts; 20-a guide block; 21-supporting a step; 22-a guide through hole; 30-a conversion block; 31-a pressure bar; 32-a conversion block through hole; 35-a transfer lever; 36-a transfer lever through hole; 50-a return spring; 60-a rotary drive; 70-upper cover; 71-upper cover through hole; 80-a housing; 81-a drive mount; 90-thrust bearing; 100-a heat sink; 110-a heating element; 120-a spray head; 200-a fan housing; 210-an axial fan; 220-a blower fan; 230-nozzle wind guide.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
Example 1
Referring to fig. 1 to 3, a height switching mechanism includes a housing 80, a rotation module, a guide block 20 and a conversion module, where the rotation module includes a rotation base 10 and a rotation driver 60, a mounting base 15 is disposed on a bottom surface of the rotation base 10, the mounting base 15 is connected to an output shaft of the rotation driver 60, the rotation driver 60 is fixedly connected to the housing 80 through a driver fixing member 81, the rotation base 10 includes a first surface 11 and a second surface 12, the second surface 12 is disposed at an angle to the first surface 11, the second surface 12 is disposed with a pressing portion 14 and a recovery portion 13, the pressing portion 14 is disposed on a side far away from the first surface 11, and the recovery portion 13 is disposed on a side near the first surface 11;
the guide block 20 is fixed on the shell 80, the guide block 20 is provided with a guide through hole 22 arranged along the vertical direction, and the lower end of the guide block 20 is provided with a support step 21;
the conversion module is arranged on one side of the rotation module, the conversion module comprises a conversion block 30, a conversion rod 35 and a return spring 50, a pressure rod 31 is arranged on one side, close to the rotation module, of the conversion block 30, the pressure rod 31 is abutted to the second surface 12 of the rotation seat 10, the lower end of the conversion block 30 is connected with the top end of the conversion rod 35, a connecting portion is arranged at the lower end of the conversion rod 35, the conversion rod 35 is inserted into the guide through hole 22 of the guide block 20, the conversion rod 35 can reciprocate along the guide through hole 22, the return spring 50 is sleeved on the guide block 20, the upper end of the return spring 50 is in contact with the bottom surface of the conversion block 30, and the lower end of the return spring 50 is in contact with the support step 21 of the guide block 20, so that the conversion block 30 is provided with elastic force far away from the guide block 20.
In this embodiment, the first surface of roating seat is the upper surface, the upper surface is parallel with the horizontal plane, the bottom surface at the roating seat is established to the second surface, the second surface surrounds the mount pad and sets up, because the second surface is the angle setting with the first surface, the one end that consequently the first surface was kept away from to the second surface forms the splenium, the one end that the second surface is close to the first surface forms the restoring portion, it is smooth transition face to apply between splenium and the restoring portion, in order to guarantee that the splenium can exert the effort reliably and can not skid to the depression bar of the conversion piece of conversion module, the splenium is equipped with the depression bar groove, and similarly, the restoring portion also can be equipped with the depression bar groove, prevent that the depression bar from breaking away.
When the rotary driver drives the pressing part of the rotary seat to rotate to one side of the conversion module, the pressure rod moves downwards under the pressure applied by the inclined surface to drive the conversion block and the conversion rod to move downwards until the rotary seat rotates to the position, and the pressure rod moves to the bottommost end under the action of the pressing part; when the rotary driver drives the pressing part of the rotary seat to rotate away from one side of the conversion module, the conversion block moves upwards together with the conversion rod under the action force of the return spring until the return part of the rotary seat rotates to the position of the pressure rod, and the conversion block moves to the top end at the moment, so that the heights of the conversion block and the conversion rod are adjusted.
From the above description, the beneficial effects of the present invention are: the height switching mechanism is simple in structure, easy to install, detach and maintain, capable of enabling the conversion module to move up and down by rotating the rotary seat, and high in practicability and usability.
Example 2
On the basis of embodiment 1, two guide blocks 20 and two conversion modules are respectively arranged, two guide blocks 20 are arranged on two sides of the rotation module, and two conversion modules are arranged on two sides of the rotation module.
In this embodiment, two guide blocks and a conversion module are provided, so that the function of switching between high and low can be realized, and the height switching mechanism has higher practicability and higher usability.
Example 3
On the basis of embodiment 2, the switching lever 35 is in clearance fit with the guide through hole 22 of the guide block.
In this embodiment, in order to prevent the shift from appearing when the change-over bar reciprocates in the guide through hole of guide block, the external diameter of change-over bar slightly is less than the internal diameter of guide through hole, is clearance fit for promptly, can increase mechanism's stability and reliability of operation.
Example 4
On the basis of embodiment 3, the conversion block 30 is provided with a conversion block through hole 32 in the vertical direction, and the conversion rod 35 is provided with a conversion rod through hole 36 corresponding to the conversion block through hole.
In this embodiment, for the input of convenient 3D printing consumables, can set up the through-hole in conversion piece and change-over bar, form the consumptive material passageway, make things convenient for the supply of consumptive material, prevent that the consumptive material from receiving other part influences and causing the supply card shell. Preferably, the conversion block, the pressure rod and the conversion rod are designed integrally.
Example 5
On the basis of embodiment 4, the rotary driver 60 is a steering engine.
In this embodiment, the steering wheel can provide sufficient moment of torsion and let the roating seat rotatory, and the steering wheel is small and exquisite, and rotation angle is fixed, can adapt this application scene well.
Example 6
On the basis of embodiment 5, the device further includes an upper cover 70, where the upper cover 70 is disposed above the housing 80, the first surface 11 of the rotary seat is provided with a mounting post 16, the upper cover 70 is provided with a groove corresponding to the mounting post 16 of the rotary seat, and the mounting post 16 of the rotary seat can rotate in the groove.
In this embodiment, in order to prevent that the roating seat from receiving the reaction force of depression bar and leading to the skew at rotatory in-process, break down, set up the recess at the upper cover, go into the mounting column card of roating seat in the recess, can guarantee that the roating seat can not the skew.
Example 7
On the basis of embodiment 6, a thrust bearing 90 is disposed in the groove, and the thrust bearing 90 is sleeved on the mounting post 16.
In this embodiment, set up thrust bearing in the recess, let the erection column of roating seat rotatory in thrust bearing, can avoid the wearing and tearing of erection column in rotatory in-process, increase mechanism life.
Example 8
On the basis of embodiment 7, the housing 80 includes a rotating module accommodating chamber for accommodating the rotating module and a converting module accommodating chamber for accommodating the converting module.
In the embodiment, in order to reduce the interference between the rotating module and the conversion module and ensure the stability of the operation of each module, a plurality of cavities are arranged in the shell to isolate each module, so that the installation of each module is facilitated and the structural reliability is ensured.
Wherein the rotary module holding chamber is cylindrical, and the conversion module holding chamber is the cuboid form, can laminate each module better, increases the reliability of structural stability and mechanism's operation.
Example 9
Referring to fig. 4 to 6, the present invention further relates to a dual-nozzle switching device, which includes any one of the height switching mechanisms, wherein the lower end of the switching rod of the switching module of the height switching mechanism is connected to a 3D printing nozzle assembly.
In this embodiment, 3D prints shower nozzle subassembly and is connected with high switching mechanism through the transfer bar, and fin 100 has been cup jointed in the outside of transfer bar lower extreme to prevent that the heat conduction that the heating module in the 3D prints shower nozzle subassembly produced from to the transfer bar, make the inside 3D printing consumables of transfer bar be heated the melting and lead to blockking up, the consumptive material supply trouble appears.
The 3D printing spray head component comprises a material conveying pipe, a spray head 120 and a heating element 110, one end of the material conveying pipe is inserted into the radiating fin 100 and is in butt joint with the conversion rod 35, the other end of the material conveying pipe is connected with the spray head 120, and the heating element 110 is sleeved on the spray head 120.
In order to further increase the heat dissipation capability, the housing of the height switching mechanism is covered with a fan cover 200, the fan cover is provided with a fan mounting position, and the fan mounting position is provided with an axial fan 210 for blowing air to the heat dissipation fins for heat dissipation.
In order to enable the 3D printing supplies extruded by the nozzle to be rapidly cooled and solidified, two sides of the fan cover are respectively provided with an air blowing fan 220, and an air outlet of the air blowing fan 220 is provided with a nozzle air guide member 230, so that air blown out by the air blowing fan can be blown to the nozzle more uniformly.
By the above, apply to dual spray 3D printing apparatus with high switching mechanism, when can letting the printer switch the shower nozzle, let two shower nozzles produce the difference in height, reduce the interact between the shower nozzle, avoid the shower nozzle and the colliding with of printing the material, indirectly prolonged the life of shower nozzle.
Example 10
On the basis of embodiment 9, the 3D printing nozzle assembly is provided with a feeding port, the feeding port is communicated with a rod changing through hole of a conversion rod of the conversion module, and the upper cover is provided with an upper cover through hole 71 corresponding to the conversion block through hole.
In this embodiment, for the input of convenient 3D printing consumables, set up the upper cover through-hole at the upper cover, 3D printing consumables inserts the conversion piece through-hole of conversion piece by the upper cover through-hole, gets into 3D via the conversion pole through-hole and prints the shower nozzle subassembly, has made things convenient for the supply of consumptive material, effectively prevents that the consumptive material from receiving the condition that other part influences and cause the supply card shell.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A height switching mechanism, characterized by: the rotary module comprises a rotary seat and a rotary driver, the bottom surface of the rotary seat is provided with an installation seat, the installation seat is connected with an output shaft of the rotary driver, the rotary driver is fixedly connected with the shell, the rotary seat comprises a first surface and a second surface, the second surface and the first surface are arranged at an angle, the second surface is provided with a pressing part and a restoring part, the pressing part is arranged on one side far away from the first surface, and the restoring part is arranged on one side close to the first surface;
the guide block is fixed on the shell and provided with a guide through hole arranged in the vertical direction, and the lower end of the guide block is provided with a support step;
the conversion module set up in one side of rotatory module, the conversion module includes conversion piece, transfer bar and reset spring, the conversion piece is close to one side of rotatory module is equipped with the depression bar, the depression bar with the second surface butt of roating seat, the lower extreme of conversion piece with the top of transfer bar is connected, the lower extreme of transfer bar is equipped with connecting portion, the transfer bar is inserted and is located the direction through-hole of guide block, the transfer bar can be followed direction through-hole reciprocating motion, reset spring cup joint in the guide block.
2. The height switching mechanism of claim 1, wherein: the guide blocks and the conversion modules are respectively provided with two guide blocks, the two guide blocks are arranged on two sides of the rotation module, and the two conversion modules are arranged on two sides of the rotation module.
3. The height switching mechanism of claim 2, wherein: the conversion rod is in clearance fit with the guide through hole of the guide block.
4. The height switching mechanism of claim 3, wherein: the conversion block is provided with a vertical conversion block through hole, and the conversion rod is provided with a conversion rod through hole corresponding to the conversion block through hole.
5. The height switching mechanism of claim 4, wherein: the rotary driver is a steering engine.
6. The height switching mechanism of claim 5, wherein: still include the upper cover, the upper cover set up in the top of casing, the first surface of roating seat is equipped with the erection column, the upper cover corresponds the erection column of roating seat is equipped with the recess, the erection column of roating seat can it is rotatory in the recess, the upper cover corresponds the conversion piece through-hole is equipped with the upper cover through-hole.
7. The height switching mechanism of claim 6, wherein: and a thrust bearing is arranged in the groove and sleeved on the mounting column.
8. The height switching mechanism of claim 7, wherein: the shell comprises a rotating module accommodating cavity and a converting module accommodating cavity, the rotating module accommodating cavity is used for accommodating the rotating module, and the converting module accommodating cavity is used for accommodating the converting module.
9. A kind of double spray head shifter, characterized by that: the height switching mechanism of any one of claims 1 to 8, wherein a 3D print head assembly is connected to a lower end of each of the switching rods of the switching module of the height switching mechanism.
10. The dual spray head switching device of claim 9, wherein: the 3D printing nozzle assembly is provided with a feeding opening, and the feeding opening is communicated with a rod changing through hole of a conversion rod of the conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020122456.6U CN212242156U (en) | 2020-01-19 | 2020-01-19 | Height switching mechanism and double-nozzle switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020122456.6U CN212242156U (en) | 2020-01-19 | 2020-01-19 | Height switching mechanism and double-nozzle switching device |
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| CN212242156U true CN212242156U (en) | 2020-12-29 |
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| CN202020122456.6U Active CN212242156U (en) | 2020-01-19 | 2020-01-19 | Height switching mechanism and double-nozzle switching device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112776332A (en) * | 2021-01-20 | 2021-05-11 | 浙江嘉兴智叠智能科技有限公司 | High-compatibility spray head winding and unwinding device |
| CN114589924A (en) * | 2022-03-14 | 2022-06-07 | 深圳市纵维立方科技有限公司 | Control method of three-dimensional printer, three-dimensional printer and readable storage medium |
| CN115091750A (en) * | 2022-07-13 | 2022-09-23 | 深圳市创想三维科技股份有限公司 | Double-nozzle device and 3D printing equipment |
-
2020
- 2020-01-19 CN CN202020122456.6U patent/CN212242156U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112776332A (en) * | 2021-01-20 | 2021-05-11 | 浙江嘉兴智叠智能科技有限公司 | High-compatibility spray head winding and unwinding device |
| CN114589924A (en) * | 2022-03-14 | 2022-06-07 | 深圳市纵维立方科技有限公司 | Control method of three-dimensional printer, three-dimensional printer and readable storage medium |
| CN114589924B (en) * | 2022-03-14 | 2024-01-05 | 深圳市纵维立方科技有限公司 | Control method of three-dimensional printer, three-dimensional printer and readable storage medium |
| CN115091750A (en) * | 2022-07-13 | 2022-09-23 | 深圳市创想三维科技股份有限公司 | Double-nozzle device and 3D printing equipment |
| CN115091750B (en) * | 2022-07-13 | 2024-01-05 | 深圳市创想三维科技股份有限公司 | Double-spray-head device and 3D printing equipment |
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