CN209738294U

CN209738294U - A belt cleaning device for 3D print head

Info

Publication number: CN209738294U
Application number: CN201920083249.1U
Authority: CN
Inventors: 王桃芬
Original assignee: Chongqing Vocational Institute of Engineering
Current assignee: Chongqing Vocational Institute of Engineering
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2019-12-06
Anticipated expiration: 2029-01-17

Abstract

The utility model belongs to the technical field of 3D printer accessory equipment, and particularly discloses a cleaning device for a 3D printer nozzle, which comprises a box body, wherein a base is arranged in the box body, a plurality of support columns are arranged on the base, a fixed base is arranged on the support columns, a first through hole and a first annular groove are formed in the fixed base, a movable base is arranged above the fixed base, and a second through hole and a second annular groove are formed in the movable base; the base is provided with an internal cleaning mechanism, and the internal cleaning mechanism comprises a fixed shaft, a first motor and a brush head assembly; the inside outside wiper mechanism that still is equipped with of box, outside wiper mechanism includes second motor, third gear, ring gear and high-pressure spray gun. The device is provided with the fixed base and the movable base, and the movable base is matched with the fixed base to clamp the spray head and position the spray head; and the inner surface and the outer surface of the spray head are cleaned simultaneously by matching the inner cleaning mechanism and the outer cleaning mechanism.

Description

A belt cleaning device for 3D print head

Technical Field

The utility model belongs to the technical field of 3D printer auxiliary assembly, a belt cleaning device for 3D print head is specifically disclosed.

Background

3D printing is one of the rapid prototyping technologies, which is a technology for constructing an object by using a bondable material such as powdered metal or plastic based on a digital model file and by printing layer by layer. The difference between 3D printing and common printing is that the printing material and the collocation of different plastic powder and metal powder can obtain different performances. After the 3D printer accomplished the print job, the inside of 3D print head often can remain and print the material, because the one end of shower nozzle is cylindric, and the other end is the tip form, if not rinse the inside of 3D print head, remaining printing material can accumulate gradually and very easily block up the shower nozzle, causes the inefficacy of print job, probably damages the 3D printer simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a belt cleaning device for 3D print head to solve 3D print head's clearance problem.

In order to achieve the above object, the basic scheme of the utility model is: a cleaning device for a 3D printer nozzle comprises a box body, wherein a base is arranged in the box body, a plurality of support columns are arranged on the base, a fixed base is fixedly connected to the upper ends of the support columns, a first through hole and a first annular groove which are coaxial are formed in the fixed base, and the first annular groove is located on the upper surface of the fixed base; a movable base is arranged above the fixed base, a second through hole and a second annular groove which are coaxial are formed in the movable base, and the second annular groove is located on the lower surface of the movable base; the upper surface of the movable base is connected with a plurality of connecting rods, the upper ends of the connecting rods are connected with a disc, and the upper surface of the disc is connected with a lifting mechanism for driving the disc to move vertically; be equipped with inside wiper mechanism on the base, inside wiper mechanism includes the fixed axle, first motor and brush first subassembly, fixed axle and first motor are all installed on the base, the vertical first gear of up and fixedly connected with of output shaft of first motor, first gear engagement has the second gear of rotation connection on fixed axle, the up end of second gear is equipped with a plurality of spinal branch poles, be equipped with the mount pad on the branch pole, be equipped with the hollow shaft coaxial with first through-hole on the mount pad, the connection can be dismantled on the hollow shaft to the brush first subassembly, brush first subassembly includes the drum and establishes the brush hair on the drum outer wall, be equipped with a plurality of liquid holes on the drum, hollow shaft connection has the catheter that can provide the washing liquid to.

The working principle of the basic scheme is as follows:

Taking down a spray head of the 3D printer, inverting the spray head to enable the tip part to be upward, placing the spray head in a first annular groove of a fixed base, driving a disc to move downwards through a lifting mechanism to enable a movable base to move downwards to be close to the spray head, enabling the tip part of the spray head to be inserted into a second annular groove, and enabling the movable base to be matched with the fixed base to clamp the spray head; start first motor and drive first gear revolve, first gear drives second gear revolve, and the second gear passes through branch and drives the mount pad rotation for hollow shaft and brush head subassembly begin to rotate, and the catheter carries the washing liquid to the hollow shaft simultaneously, can throw away the washing liquid from going out the liquid hole at the rotatory in-process of drum, brush head subassembly just can scrub the inside of shower nozzle, and the cull just flows out with the waste liquid under the action of gravity automatically.

the beneficial effect of this basic scheme lies in:

1. According to the device, the fixed base and the movable base are arranged, the first annular groove and the second annular groove are respectively arranged on the fixed base and the movable base according to the characteristics that one end of the spray head is cylindrical and one end of the spray head is in a pointed shape, the spray head is positioned, and the movable base is downwards matched with the fixed base to fixedly clamp the spray head.

2. The device is provided with an internal cleaning mechanism in the box body, wherein a liquid guide pipe provides cleaning liquid, and the inner wall of the spray head is scrubbed through the rotary motion of the brush head component.

3. In this device, the mode that the shower nozzle adopted the upside down to put, the point position of shower nozzle up promptly lets during brush head subassembly inserts the shower nozzle, and the automatic outflow of abluent clout and waste liquid of being convenient for like this goes, and can not make the head of shower nozzle be stopped up by the clout that the brush was washed away.

Further, still be equipped with outside wiper mechanism in the box, outside wiper mechanism includes second motor, installing support and high-pressure spray gun, and the second motor is installed on the base, and the output shaft of second motor is vertical just fixedly connected with third gear up, and the third gear meshing has the ring gear coaxial with first through-hole, is equipped with the ring channel that is used for installing the ring gear on the installing support, and the spray gun mouth of high-pressure spray gun is towards the box center and installs on the ring gear excircle.

this device has still set up outside wiper mechanism in the box, when inside wiper mechanism work, starts second motor and high-pressure spray gun, and second motor drive third gear rotates, and the third gear drives the ring gear and rotates, and high-pressure spray gun blowout washing liquid can be with the defective material on the shower nozzle surface clean by washing.

Furthermore, a heating mechanism is arranged on the fixed base and comprises a resistance wire, and the resistance wire is arranged inside the fixed base. Resistance wire circular telegram intensifies, heats unable adjustment base, and unable adjustment base gives the shower nozzle with heat transfer, and the shower nozzle intensifies the back, remains plastics and metal defective material on the shower nozzle and is melted, is convenient for wash the shower nozzle better more fast, improves the cleaning efficiency, practices thrift the quantity of washing liquid.

Furthermore, a liquid storage tank for containing cleaning liquid is arranged on the outer side of the box body, one end of the liquid guide pipe is rotatably connected with the hollow shaft, the other end of the liquid guide pipe penetrates through the mounting seat to extend into the fixed shaft, and then the liquid guide pipe penetrates through the fixed shaft to be connected with a water pump; the water pump and the high-pressure spray gun are connected with the liquid storage tank through pipelines.

The liquid storage tank stores cleaning liquid, and during cleaning, the cleaning liquid is conveyed to the liquid guide pipe through the water pump, and the high-pressure spray gun can also obtain the cleaning liquid from the liquid storage tank. In the device, the liquid guide pipe is rotatably connected with the hollow shaft and then penetrates out of the fixed shaft, the fixed shaft is arranged to be not rotated, the liquid guide pipe cannot rotate along with the rotation of the hollow shaft, and the liquid guide pipe is prevented from being wound to influence the normal conveying of cleaning liquid.

Furthermore, the cylinder comprises a large-diameter end and a small-diameter end, the bristles are uniformly distributed on the outer walls of the large-diameter end and the small-diameter end, and the large-diameter end is detachably connected to the hollow shaft. The large-diameter end and the small-diameter end of the cylinder respectively correspond to the cylinder part and the sharp head part of the spray head, and the inner wall of the spray head can be brushed more pertinently.

Further, the inside cavity that is used for storing the waste liquid that is equipped with of base is equipped with the waste liquid hole that is linked together with the cavity on the base, is equipped with the filter screen on the waste liquid hole, and the lower extreme of box is equipped with the drain pipe that is linked together with the cavity. The used cleaning liquid, namely the waste liquid, can be stored in the cavity after the filter screen filters the residues, and finally flows out from the liquid outlet pipe to be concentrated and recycled, so that the environmental pollution is avoided.

Further, the lifting mechanism is one of an air cylinder, a hydraulic cylinder or an expansion rod. The cylinder, the hydraulic cylinder and the telescopic rod can well drive the disc and the movable base to move up and down.

Further, all the first motor and the second motor are sleeved with motor protective sleeves, the motor protective sleeves are provided with sealing rings, and output shafts of the first motor and the second motor penetrate through the sealing rings to extend out of the motor protective sleeves. Generally, a cleaning solution for cleaning a nozzle of a 3D printer is an organic solution, such as acetone, and a motor protective sleeve can protect a motor from being corroded and damaged by the cleaning solution, so that the maintenance cost is reduced, and the service life of the motor is prolonged; and the sealing washer plays sealed effect when guaranteeing the normal pivoted of the output shaft of motor, avoids the washing liquid to get into in the motor protective sheath.

Drawings

Fig. 1 is a longitudinal sectional view of a cleaning device for a 3D printer head according to an embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view of the mounting base of FIG. 1;

FIG. 3 is a longitudinal cross-sectional view of the movable base of FIG. 1;

FIG. 4 is a longitudinal cross-sectional view of the brush head assembly of FIG. 1;

FIG. 5 is a top view of the ring gear and third gear of FIG. 1.

Detailed Description

the following is further detailed by way of specific embodiments:

Reference numerals in the drawings of the specification include: the brush head assembly comprises a box body 1, a base 2, a cavity 201, a waste liquid hole 202, a filter screen 203, a support column 3, a fixed base 4, a first through hole 401, a first annular groove 402, a resistance wire 403, a movable base 5, a second through hole 501, a second annular groove 502, a connecting rod 6, a disc 7, a cylinder 8, a piston rod 801, a fixed shaft 9, a first motor 10, a brush head assembly 11, a cylinder 1101, bristles 1102, a first gear 12, a second gear 13, a supporting rod 14, a mounting seat 15, a hollow shaft 16, a liquid guide pipe 17, a second motor 18, a mounting bracket 19, a high-pressure spray gun 20, a third gear 21, a gear ring 22, a liquid storage box 23, a water pump 24, a motor protective sleeve 25, a liquid outlet pipe.

The embodiment is basically as shown in the attached figure 1: a cleaning device for a 3D printer nozzle comprises a box body 1, wherein a base 2 is arranged in the box body 1, two support columns 3 are welded on the base 2, a fixing base 4 is welded at the upper ends of the support columns 3, as shown in a combined figure 2, a first through hole 401 and a first annular groove 402 which are coaxial are formed in the fixing base 4, the first annular groove 402 is located on the upper surface of the fixing base 4, and the diameter of the first annular groove 402 is larger than that of the first through hole 401; the movable base 5 is arranged above the fixed base 4, as shown in fig. 3, the movable base 5 is provided with a second through hole 501 and a second annular groove 502 which are coaxial, the second annular groove 502 is located on the lower surface of the movable base 5, the diameter of the second annular groove 502 is larger than that of the second through hole 501, specifically, in order to better adapt to the pointed part of the spray head 27, the fixed clamping effect is improved, the longitudinal section of the second annular groove 502 is in a right trapezoid shape, and the outer ring of the second annular groove 502 is in an inclined shape. The upper surface welding of activity base 5 has two connecting rods 6, and the upper end welding of connecting rod 6 has disc 7, and the last surface connection of disc 7 has the elevating system who is used for driving disc 7 vertical motion, and elevating system is one of cylinder 8, pneumatic cylinder and telescopic link, and is specific, what adopt in this embodiment is cylinder 8, and cylinder 8's piston rod 801 is in the same place with disc 7 welding down.

An internal cleaning mechanism is arranged on the base 2 and comprises a fixed shaft 9, a first motor 10 and a brush head assembly 11, the fixed shaft 9 and the first motor 10 are welded on the base 2, an output shaft of the first motor 10 is vertically upward and is in interference connection with a first gear 12, the first gear 12 is meshed with a second gear 13 rotatably connected on the fixed shaft 9, two support rods 14 are welded on the upper end face of the second gear 13, a mounting seat 15 is fixed on the upper ends of the support rods 14 through screws, a hollow shaft 16 coaxial with the first through hole 401 is welded on the mounting seat 15, the brush head assembly 11 is detachably connected on the hollow shaft 16, the brush head assembly 11 comprises a cylinder 1101 and brush bristles 1102 arranged on the outer wall of the cylinder 1101, and a plurality of liquid outlet holes (not shown in the figure) are formed in; specifically, an external thread may be formed on the outer side wall of the hollow shaft 16, and an internal thread matched with the external thread may be formed on the inner side wall of the cylinder 1101, so that the brush head assembly 11 is detachably connected to the hollow shaft 16 in a threaded connection manner. Referring to fig. 4, the cylinder 1101 includes a large diameter end and a small diameter end, the bristles 1102 are uniformly distributed on the outer walls of the large diameter end and the small diameter end, the large diameter end is sleeved on the hollow shaft 16, when the spray head 27 is placed on the fixed base 4, the brush head assembly 11 is inserted into the spray head 27, the large diameter end and the small diameter end of the cylinder 1101 respectively correspond to the large diameter end and the pointed end of the spray head 27, and each corner inside the spray head 27 can be comprehensively brushed.

As shown in fig. 5, an external cleaning mechanism is further disposed in the box body 1, the external cleaning mechanism includes a second motor 18, a mounting bracket 19 and a high-pressure spray gun 20, the second motor 18 is welded on the base 2, an output shaft of the second motor 18 is vertically upward and is in interference connection with a third gear 21, the third gear 21 is engaged with a gear ring 22 coaxial with the first through hole 401, the mounting bracket 19 is welded on the inner wall of the box body 1, the mounting bracket 19 is provided with an annular groove for mounting the gear ring 22, specifically, the lower end surface of the gear ring 2 is provided with an annular groove, when the gear ring 22 is placed in the annular groove, the mounting bracket 19 is inserted into the annular groove on the gear ring 22, so that the gear ring 22 is prevented from having the tendency of vertical movement and horizontal movement, and the gear ring; the high-pressure spray gun 20 has a gun opening facing the center of the case 1 and mounted on the inner circle of the ring gear 22, and specifically, the high-pressure spray gun 20 may be an XTR-5 type high-pressure spray gun.

In addition, the lower end of the hollow shaft 16 is connected with a liquid guide pipe 17 which can provide cleaning liquid for the hollow shaft 16, one end of the liquid guide pipe 17 is inserted into the hollow shaft 16 and is rotationally connected with the hollow shaft 16, the other end of the liquid guide pipe 17 penetrates through the mounting seat 15 to extend into the fixed shaft 9, and then the liquid guide pipe penetrates out of the fixed shaft 9 to be connected with a water pump 24; a liquid storage tank 23 for containing cleaning liquid is arranged on the outer side of the box body 1, and a water pump 24 and the high-pressure spray gun 20 are connected with the liquid storage tank 23 through pipelines; in order to avoid winding of the pipeline connected with the high-pressure spray gun 20 when the gear ring 22 rotates, the second motor 18 adopts a forward and reverse rotating motor; the first motor 10 and the second motor 18 are both sleeved with a motor protective sleeve 25, a sealing ring is arranged on the motor protective sleeve 25, and output shafts of the first motor 10 and the second motor 18 penetrate through the sealing ring to extend out of the motor protective sleeve 25.

A cavity 201 for storing waste liquid is arranged in the base 2, a waste liquid hole 202 communicated with the cavity 201 is formed in the base 2, a filter screen 203 is arranged on the waste liquid hole 202, a liquid outlet pipe 26 communicated with the cavity 201 is arranged at the lower end of the box body 1, the left end of the liquid outlet pipe 26 extends into the cavity 201, and the right end of the liquid outlet pipe 26 extends out of the box body 1; the waste liquid can be stored in the cavity 201 after being filtered by the filter screen 203 and the residue is removed, and finally flows out of the liquid outlet pipe 26 to be concentrated and recycled, so that the environmental pollution is avoided.

As shown in fig. 2, because the residue on the nozzle 27 is generally some plastic and metal materials, in order to better wash away the residue, the device is further provided with a heating mechanism, the heating mechanism comprises a resistance wire 403, the resistance wire 403 is installed in the fixed base 4, and the resistance wire 403 is connected with a lead for electrifying the resistance wire 403; resistance wire 403 heats up after the circular telegram, heats fixed baseplate 4, and fixed baseplate 4 gives shower nozzle 27 with heat transfer, and the shower nozzle 27 heats up the back, is convenient for melt the plastics clout that remains on shower nozzle 27 for washing speed improves cleaning efficiency and cleaning performance.

The specific implementation process is as follows:

taking down the spray head 27 of the 3D printer, inverting the spray head 27 to enable the tip part to face upwards, placing the spray head 27 in the first annular groove 402 of the fixed base 4, driving the disc 7 to move downwards through the lifting mechanism, enabling the movable base 5 to move downwards to be close to the spray head 27, enabling the tip part of the spray head 27 to be inserted into the second annular groove 502, and enabling the movable base 5 to be matched with the fixed base 4 to clamp the spray head 27; starting the first motor 10, wherein an output shaft of the first motor 10 drives the first gear 12 to rotate, the first gear 12 drives the second gear 13 to rotate, the second gear 13 drives the mounting seat 15 to rotate through the supporting rod 14, so that the hollow shaft 16 and the brush head assembly 11 start to rotate, meanwhile, the water pump 24 is started, the water pump 24 conveys the cleaning liquid in the liquid storage tank 23 to the hollow shaft 16 through the liquid guide pipe 17, the cleaning liquid is thrown out from the liquid outlet hole in the rotating process of the cylinder 1101, the brush head assembly 11 can brush the interior of the spray head 27, and the residual materials and the waste liquid automatically flow out under the action of gravity; meanwhile, the second motor 18 and the high-pressure spray gun 20 are started, the second motor 18 drives the third gear 21 to rotate through the output shaft, the third gear 21 drives the gear ring 22 to rotate, and the high-pressure spray gun 20 can wash the outside of the spray head 27.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. 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.

Claims

1. a belt cleaning device for 3D print head, its characterized in that: the device comprises a box body, wherein a base is arranged in the box body, a plurality of supporting columns are arranged on the base, the upper ends of the supporting columns are fixedly connected with a fixed base, a first through hole and a first annular groove which are coaxial are formed in the fixed base, and the first annular groove is located on the upper surface of the fixed base; a movable base is arranged above the fixed base, a second through hole and a second annular groove which are coaxial are formed in the movable base, and the second annular groove is located on the lower surface of the movable base; the upper surface of the movable base is connected with a plurality of connecting rods, the upper ends of the connecting rods are connected with a disc, and the upper surface of the disc is connected with a lifting mechanism for driving the disc to move vertically;

Be equipped with inside wiper mechanism on the base, inside wiper mechanism includes the fixed axle, first motor and brush first subassembly, fixed axle and first motor are all installed on the base, the vertical first gear of up and fixedly connected with of output shaft of first motor, first gear engagement has the second gear of rotation connection on fixed axle, the up end of second gear is equipped with a plurality of spinal branch poles, be equipped with the mount pad on the branch pole, be equipped with the hollow shaft coaxial with first through-hole on the mount pad, the connection can be dismantled on the hollow shaft to the brush first subassembly, brush first subassembly includes the drum and establishes the brush hair on the drum outer wall, be equipped with a plurality of liquid holes on the drum, hollow shaft connection has the catheter that can provide the washing liquid to.

2. the cleaning device for the 3D printer head according to claim 1, wherein: still be equipped with outside wiper mechanism in the box, outside wiper mechanism includes second motor, installing support and high-pressure spray gun, and the second motor is installed on the base, and the output shaft of second motor is vertical upwards and fixedly connected with third gear, and the third gear meshing has the ring gear coaxial with first through-hole, is equipped with the ring channel that is used for installing the ring gear on the installing support, and the spray gun mouth of high-pressure spray gun is towards the box center and install on the ring gear endotheca.

3. The cleaning device for the 3D printer nozzle of claim 2, wherein: still include heating mechanism, heating mechanism sets up inside fixed baseplate.

4. the cleaning device for the 3D printer head according to claim 3, wherein: a liquid storage tank for containing cleaning liquid is arranged on the outer side of the box body, one end of the liquid guide pipe is communicated with the hollow shaft, the other end of the liquid guide pipe penetrates through the mounting seat to extend into the fixed shaft, and then the liquid guide pipe penetrates out of the fixed shaft to be connected with a water pump; the water pump and the high-pressure spray gun are connected with the liquid storage tank through pipelines.

5. The cleaning device for the 3D printer nozzle of claim 4, wherein: the cylinder comprises a large-diameter end and a small-diameter end, the bristles are uniformly distributed on the outer walls of the large-diameter end and the small-diameter end, and the large-diameter end is detachably connected to the hollow shaft.

6. The cleaning device for the 3D printer nozzle of claim 5, wherein: the base is internally provided with a cavity for storing waste liquid, the base is provided with a waste liquid hole communicated with the cavity, the waste liquid hole is provided with a filter screen, and the lower end of the box body is provided with a liquid outlet pipe communicated with the cavity.

7. The cleaning device for the 3D printer head according to claim 6, wherein: the lifting mechanism is one of an air cylinder, a hydraulic cylinder or a telescopic rod.

8. The cleaning device for the 3D printer head of claim 7, wherein: the motor protective sleeve is sleeved outside the first motor and the second motor, the motor protective sleeve is provided with a sealing ring, and the first motor and the second motor output shaft penetrate through the sealing ring to extend out of the motor protective sleeve.