CN211363498U

CN211363498U - Device for rapidly replacing FDM printing head

Info

Publication number: CN211363498U
Application number: CN201921649499.3U
Authority: CN
Inventors: 张超
Original assignee: Chongqing Xianlin Technology Co ltd
Current assignee: Chongqing Xianlin Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-08-28
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to the technical field of printing devices; the device for rapidly replacing the FDM printing head comprises a rack arranged on the FDM printer, wherein a lifting block and a first power mechanism for driving the lifting block to move in the vertical direction are arranged on the rack; the lifting block is provided with a workbench and a second power mechanism for driving the workbench to move along the horizontal direction, the bottom of the workbench is provided with a clamping groove, and an electromagnet for electrifying and attracting the FDM printing head is arranged in the clamping groove; the frame is also provided with a plurality of limiting grooves for placing the FDM printing head, and the limiting grooves are positioned below the workbench. This application has mainly solved the problem that present single FDM printer can not realize the vibration material disk of multiple material.

Description

Device for rapidly replacing FDM printing head

Technical Field

The utility model relates to a printing device technical field.

Background

A printer is one of the output devices of a computer for printing the results of a computer process on an associated medium. There are many types of printers, and an impact printer and a non-impact printer are classified according to whether or not a printing element strikes paper. Full-font character printers and dot matrix character printers are classified according to the character structure to be printed. A line printer is divided into a serial printer and a line printer in such a manner that a line character is formed on a paper. According to the adopted technology, the printer is divided into a column type, a spherical type, an ink jet type, a thermal type, a laser type, an electrostatic type, a magnetic type, a light emitting diode type and the like.

At present, with continuous exploration and innovation of people in the field of equipment manufacturing, printing additive manufacturing is widely concerned, popularized and applied in various manufacturing fields, wherein the FDM printing technology is one of the main additive manufacturing modes. Present FDM printer is mostly single printer head, to the vibration material disk of multiple material, then need use different FDM to beat printer head, need use a plurality of FDM printers promptly and just can accomplish, both occupation space, operation again is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quick replacement FDM beats printer head's device to solve present single FDM printer and can not realize the problem of the vibration material disk of multiple material.

In order to achieve the above object, the basic scheme of the present invention is as follows: the device for quickly replacing the FDM printing head comprises a rack arranged on an FDM printer, wherein a lifting block and a first power mechanism for driving the lifting block to move in the vertical direction are arranged on the rack; the lifting block is provided with a workbench and a second power mechanism for driving the workbench to move along the horizontal direction, the bottom of the workbench is provided with a clamping groove, and an electromagnet for electrifying and attracting the FDM printing head is arranged in the clamping groove; the frame is also provided with a plurality of limiting grooves for placing the FDM printing head, and the limiting grooves are positioned below the workbench.

The advantages of the basic scheme are:

1. this scheme beats printer head with a plurality of FDMs and places respectively at the spacing inslot, drives the workstation through second power unit and removes along the horizontal direction, consequently, the workstation removes to the FDM that needs use and beats printer head's top, and the electro-magnet after the circular telegram can hold the FDM that corresponds and beat printer head, and the outage through the electro-magnet can make FDM beat printer head and drop to the spacing inslot and collect to this quick replacement that realizes FDM and beat printer head.

2. According to the scheme, the lifting block can be driven to move along the vertical direction through the first power mechanism, and then the workbench is driven to move along the vertical direction; can drive the workstation through second power unit and remove along the horizontal direction, and then enlarged FDM and beaten the effect area of printer head, the practicality is strong.

Furthermore, a support table is arranged on the machine frame and is positioned above the limit groove; the supporting table is provided with a sliding chute, and the workbench slides in the sliding chute; the bottom of the supporting table is provided with a plurality of through holes communicated with the sliding grooves, and the through holes and the limiting grooves are vertically arranged oppositely.

Through the arrangement, the workbench slides in the sliding groove, so that on one hand, the sliding groove can play a role in guiding the movement of the workbench, and on the other hand, the sliding groove can play a role in supporting the workbench, thereby improving the stability; when the workstation removed to the through-hole, can be convenient for the electro-magnet to hold the FDM that corresponds and beat printer head through the through-hole, and then avoid beating printer head to adjacent FDM and cause the influence.

Furthermore, the bottom of the supporting platform is provided with a plurality of guide cylinders communicated with the through holes. Through the arrangement, the guide cylinder can play a role in guiding the moving path of the FDM printing head.

Furthermore, the both sides of guide cylinder all are equipped with the side opening, it is connected with the leading wheel to rotate on the inner wall of side opening. Through the setting, the lateral wall that beats printer head through the FDM and the friction of leading wheel for the leading wheel rotates, can beat printer head to draw-in groove direction removal through the leading wheel promptly and play the guide effect.

Further, a rubber layer is sleeved on the guide wheel. Through the setting, because the rubber layer is flexible material, replace the contact that leading wheel and FDM beaten the printer head through the rubber layer, effectively avoided beating the wearing and tearing of printer head to FDM.

Further, the first power mechanism is a first cylinder, and the second power mechanism is a second cylinder. Through the arrangement, the first air cylinder is adopted to realize the vertical reciprocating movement of the lifting block, the second air cylinder is adopted to realize the horizontal reciprocating movement of the workbench, and the structure is simple and practical.

Furthermore, buffer grooves are formed in the two sides of the limiting groove, and a buffer plate is connected between the two buffer grooves in a sliding mode; and a spring is arranged between the buffer plate and the buffer groove.

Through the setting, FDM beats printer head and drops to the dashpot in, FDM printer head produces the impact force to the buffer board for the buffer board moves down, can beat printer head to FDM through the spring and move down and play the cushioning effect, and then reduces the direct damage that drops in the dashpot that beats printer head of FDM.

Further, a guide table is arranged at the bottom of the limiting groove, and a guide groove is formed in the guide table; and the guide groove is internally and slidably connected with a guide block fixedly connected with the buffer plate.

Through the arrangement, the guide block slides in the guide groove, and then the guide effect is achieved on the movement of the buffer plate, so that the buffer plate can move more slowly and stably.

Furthermore, both sides of the limiting groove are provided with communicating grooves communicated with the guide groove, and one end of each communicating groove, which is far away from the guide groove, is higher than the buffer groove; and air bags extending into the communicating grooves are connected to the two sides of the guide grooves.

Through the arrangement, the buffer plate drives the guide block to move downwards in the guide groove, and the air bag is inflated, so that the air bag is expanded; the gasbag expands and stretches out the intercommunication groove and offsets with first FDM beats printer head by the restriction of intercommunication groove, beats printer head through the gasbag of both sides to first FDM promptly and carries out the centre gripping, and then avoids first FDM to beat printer head departure spacing groove.

Further, a rack is arranged at the bottom of the buffer plate; a linkage shaft penetrating through the guide groove is rotatably connected to the guide table, and a gear meshed with the rack is fixedly connected to the linkage shaft; the two ends of the linkage shaft are fixedly connected with buffering shafts, and the bottom of the limiting groove is provided with a friction block which is in contact with the arc-shaped surface of each buffering shaft.

Through the setting, the buffer board moves the synchronous downstream of rack, because the meshing of gear and rack can drive gear revolve, the gear drives the universal driving shaft and rotates, the universal driving shaft drives the buffer shaft rotation at both ends, the rotational speed of buffer shaft can be slowed down through the friction of buffer shaft and clutch blocks, and then the rotational speed of universal driving shaft and gear has slowed down, the rack has promptly been slowed down, the slew velocity of guide block and buffer board, and then beat printer head to first FDM and move down and also can play the cushioning effect, avoid first FDM to beat printer head departure spacing groove.

Drawings

Fig. 1 is a partial sectional view in a front view of an embodiment of the device for rapidly replacing an FDM printhead of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

FIG. 4 is a cross-sectional view of a retaining groove.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a rack 1, a lifting block 2, a first air cylinder 3, a workbench 4, a second air cylinder 5, a clamping groove 6, an electromagnet 7, a limiting groove 8, a supporting table 9, a sliding groove 10, a through hole 11, a guide cylinder 12, a side hole 13, a guide wheel 14, a buffer groove 15, a buffer plate 16, a spring 17, a guide table 18, a guide groove 19, a guide block 20, a communication groove 21, an air bag 22, a rack 23, a linkage shaft 24, a gear 25, a buffer shaft 26 and a friction block 27.

Example one

Substantially as shown in figures 1, 2 and 3: the device for quickly replacing the FDM printing head comprises a rack 1 arranged on an FDM printer, wherein a first power mechanism is fixedly connected to the rack 1, and in the embodiment, the first power mechanism is a first air cylinder 3; an output shaft of the first cylinder 3 is fixedly connected with a lifting block 2, and the lifting block 2 is connected with the rack 1 in a sliding manner; the lifting block 2 can be driven to reciprocate along the vertical direction through the first cylinder 3.

A second power mechanism is fixedly connected to the side wall of the lifting block 2, the second power mechanism is a second cylinder 5 in the embodiment, and an output shaft of the second cylinder 5 is fixedly connected with a workbench 4; a support table 9 is fixedly connected to the frame 1, a sliding chute 10 is formed in the top of the support table 9, and the workbench 4 can slide in the sliding chute 10 and can also be separated from the sliding chute 10; the bottom of the supporting platform 9 is provided with a plurality of through holes 11 communicated with the sliding grooves 10; the output shaft of the second cylinder 5 can drive the workbench 4 to reciprocate in the sliding chute 10 along the horizontal direction. A clamping groove 6 is formed in the bottom of the workbench 4, and an electromagnet 7 which is attracted with the FDM printing head is arranged in the clamping groove 6; still set up a plurality of spacing grooves 8 that are used for placing FDM and beat printer head on the frame 1, spacing groove 8 is located the below of brace table 9, and spacing groove 8 sets up with through-hole 11 vertical relative.

The bottom of the supporting table 9 is welded with a plurality of guide cylinders 12 communicated with the through holes 11, side holes 13 are formed in two sides of each guide cylinder 12, guide wheels 14 are rotatably connected to the inner walls of the side holes 13, and when the FDM printing head moves into the guide cylinders 12, the guide wheels 14 and the FDM printing head are subjected to rolling friction and can play a guiding role in up-and-down movement of the FDM printing head.

Buffer grooves 15 are formed in the two sides of the limiting groove 8 along the vertical direction, a buffer plate 16 is arranged between the two buffer grooves 15, and the buffer plate 16 slides in the buffer grooves 15; a spring 17 is fixed between the buffer plate 16 and the buffer slot 15. A guide table 18 is integrally formed at the bottom of the limiting groove 8, and a guide groove 19 is vertically formed at the top of the guide table 18; a guide block 20 fixedly connected with the buffer plate 16 is slidably connected in the guide groove 19. Both sides of the limiting groove 8 are provided with communicating grooves 21 communicated with the guide groove 19, and one end of each communicating groove 21 far away from the guide groove 19 is higher than the buffer groove 15; the airbag 22 extending into the communication groove 21 is connected to both sides of the guide groove 19, and the airbag 22 fills the entire communication groove 21.

The specific implementation process is as follows:

the FDM printing heads are respectively placed in the limiting grooves 8, when a first material is needed to be used for additive manufacturing, the second air cylinder 5 is started, the electromagnet 7 is powered on, an output shaft of the second air cylinder 5 drives the workbench 4 to move in the sliding groove 10 in the horizontal direction, and the electromagnet 7 can generate magnetism when powered on; when the clamping groove 6, the through hole 11 and the guide cylinder 12 are vertically communicated with the limiting groove 8, the electromagnet 7 generates suction to the first FDM printing head, so that the first FDM printing head moves towards the direction of the clamping groove 6; the first FDM printing head leaves the limiting groove 8 and enters the guide cylinder 12, the side wall of the first FDM printing head rubs with the guide wheel 14, so that the guide wheel 14 rotates, namely the guide wheel 14 can guide the first FDM printing head to move towards the clamping groove 6; the first FDM printing head passes through the guide cylinder 12 and the through hole 11 and is attracted with the electromagnet 7 in the clamping groove 6, so that the first FDM printing head is positioned.

Closing the second cylinder 5 and starting the first cylinder 3; an output shaft of the first air cylinder 3 drives the lifting block 2 to move upwards, the lifting block 2 drives the workbench 4 to move upwards, and then the first FDM printing head is driven to move upwards, so that the first FDM printing head leaves the sliding groove 10, namely one FDM printing head is higher than the supporting table 9; and closing the first air cylinder 3, starting the second air cylinder 5, driving the workbench 4 to move to a position needing to be printed by an output shaft of the second air cylinder 5 to print, and closing the second air cylinder 5.

After the additive manufacturing of the first material is completed through the first FDM printing head, when the second FDM printing head needs to be replaced, the second air cylinder 5 is started, an output shaft of the second air cylinder 5 drives the first FDM printing head to move to the position above the supporting table 9, the first FDM printing head is vertically opposite to the through hole 11, the guide cylinder 12 and the limiting groove 8, and the second air cylinder 5 is closed; the first air cylinder 3 is started, the output shaft of the first air cylinder 3 drives the lifting block 2 to move downwards, the lifting block 2 drives the workbench 4 to move downwards, the workbench 4 is located in the sliding groove 10, the first FDM printing head penetrates through the through hole 11 to extend into the guide cylinder 12, and the first air cylinder 3 is closed.

The electromagnet 7 is turned off, so that the magnetism of the electromagnet 7 disappears; the magnetic force of the electromagnet 7 on the first FDM printing head disappears, so that the first FDM printing head moves downwards under the action of self weight; the guide wheel 14 again guides the movement of the first FDM print head; the first FDM printing head passes through the guide cylinder 12 and falls into the limiting groove 8, the first FDM printing head generates impact force on the buffer plate 16, so that the buffer plate 16 moves downwards, and the downward movement of the first FDM printing head can be buffered through the spring 17; in addition, the buffer plate 16 can also synchronously drive the guide block 20 to move downwards in the guide groove 19, and the airbag 22 is inflated through a pipeline, so that the airbag 22 is inflated; the air bag 22 expands and is limited by the communication groove 21 to extend out of the communication groove 21 to abut against the first FDM printing head, namely the air bags 22 on the two sides are used for clamping the first FDM printing head, and therefore the first FDM printing head is prevented from flying out of the limiting groove 8. And then the second FDM printing head is taken out according to the method for taking out the first FDM printing head.

In this embodiment, a rubber layer is sleeved on the guide wheel 14; because the rubber layer is made of flexible materials, the rubber layer replaces the contact of the guide wheel 14 and the FDM printing head, and the abrasion to the FDM printing head is effectively avoided.

Example two

As shown in fig. 4, the structure and implementation of the second embodiment are substantially the same as those of the first embodiment, and the difference is that: a rack 23 is fixedly connected to the bottom of the buffer plate 16, and the rack 23 is positioned in the guide groove 19; a linkage shaft 24 penetrating through the guide groove 19 is transversely and rotatably connected to the guide table 18, and a gear 25 meshed with the rack 23 is fixedly connected to the linkage shaft 24; the left end and the right end of the linkage shaft 24 are fixedly connected with a buffering shaft 26, and the bottom of the limiting groove 8 is provided with a friction block 27 which is in contact with the arc-shaped surface of the buffering shaft 26.

The specific implementation process is as follows:

the first FDM printing head passes through the guide cylinder 12 and falls into the limiting groove 8, the first FDM printing head generates impact force on the buffer plate 16, so that the buffer plate 16 moves downwards, and the downward movement of the first FDM printing head can be buffered through the spring 17; and, the buffer board 16 can also drive the rack 23 to move downwards synchronously, because the gear 25 can be driven to rotate by the meshing of the gear 25 and the rack 23, the gear 25 drives the linkage shaft 24 to rotate, the linkage shaft 24 drives the buffer shafts 26 at two ends to rotate, the rotating speed of the buffer shafts 26 can be reduced by the friction of the buffer shafts 26 and the friction blocks 27, and further the rotating speeds of the linkage shaft 24 and the gear 25 are reduced, namely the descending speeds of the rack 23, the guide block 20 and the buffer board 16 are reduced, so that the downward movement of the first FDM printing head can be buffered, and the first FDM printing head is prevented from flying out of the limit groove 8.

The foregoing is merely an example of the present invention and common general knowledge in the art of known specific structures and/or features has not been set forth herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Device that FDM printed head was beaten in quick replacement, its characterized in that: the FDM printer comprises a rack arranged on the FDM printer, wherein a lifting block and a first power mechanism for driving the lifting block to move in the vertical direction are arranged on the rack; the lifting block is provided with a workbench and a second power mechanism for driving the workbench to move along the horizontal direction, the bottom of the workbench is provided with a clamping groove, and an electromagnet for electrifying and attracting the FDM printing head is arranged in the clamping groove; the frame is also provided with a plurality of limiting grooves for placing the FDM printing head, and the limiting grooves are positioned below the workbench.

2. The apparatus for rapid exchange of an FDM printhead of claim 1 wherein: a support table is arranged on the machine frame and is positioned above the limit groove; the supporting table is provided with a sliding chute, and the workbench slides in the sliding chute; the bottom of the supporting table is provided with a plurality of through holes communicated with the sliding grooves, and the through holes and the limiting grooves are vertically arranged oppositely.

3. The apparatus for rapid exchange of an FDM printhead of claim 2 wherein: the bottom of the supporting platform is provided with a plurality of guide cylinders communicated with the through holes.

4. The apparatus for rapid exchange of an FDM printhead of claim 3 wherein: the both sides of guide cylinder all are equipped with the side opening, rotate on the inner wall of side opening and be connected with the leading wheel.

5. The apparatus for rapid exchange of an FDM printhead of claim 4 wherein: and the guide wheel is sleeved with a rubber layer.

6. The apparatus for rapid exchange of an FDM printhead of claim 5 wherein: the first power mechanism is a first air cylinder, and the second power mechanism is a second air cylinder.

7. The apparatus for rapid exchange of an FDM printhead of claim 6 wherein: buffer grooves are formed in the two sides of the limiting groove, and a buffer plate is connected between the two buffer grooves in a sliding mode; and a spring is arranged between the buffer plate and the buffer groove.

8. The apparatus for rapid exchange of an FDM printhead of claim 7 wherein: the bottom of the limiting groove is provided with a guide table, and the guide table is provided with a guide groove; and the guide groove is internally and slidably connected with a guide block fixedly connected with the buffer plate.

9. The apparatus for rapid exchange of an FDM printhead of claim 8 wherein: both sides of the limiting groove are provided with communicating grooves communicated with the guide grooves, and one ends of the communicating grooves far away from the guide grooves are higher than the buffer grooves; and air bags extending into the communicating grooves are connected to the two sides of the guide grooves.

10. The apparatus for rapid exchange of an FDM printhead of claim 8 wherein: the bottom of the buffer plate is provided with a rack; a linkage shaft penetrating through the guide groove is rotatably connected to the guide table, and a gear meshed with the rack is fixedly connected to the linkage shaft; the two ends of the linkage shaft are fixedly connected with buffering shafts, and the bottom of the limiting groove is provided with a friction block which is in contact with the arc-shaped surface of each buffering shaft.