CN116079009A - Clean subassembly and sand mould 3D printer - Google Patents
Clean subassembly and sand mould 3D printer Download PDFInfo
- Publication number
- CN116079009A CN116079009A CN202310054567.6A CN202310054567A CN116079009A CN 116079009 A CN116079009 A CN 116079009A CN 202310054567 A CN202310054567 A CN 202310054567A CN 116079009 A CN116079009 A CN 116079009A
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- sliding
- cleaning
- cleaning roller
- bracket
- base
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- 239000004576 sand Substances 0.000 title claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims abstract description 197
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 11
- 230000009471 action Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention belongs to the technical field of sand mould manufacturing equipment, and provides a cleaning assembly, which comprises: the two ends of the base are symmetrically provided with sliding rails; a motor, the power output shaft of which is provided with a drive bevel gear; the first elastic piece is sleeved on the power output shaft of the motor; a cleaning unit, comprising: the mounting rack is arranged between the two sliding rails; the first cleaning roller is arranged at the first end of the mounting frame, the first end of the first cleaning roller is coaxially sleeved with a driven bevel gear, and the driven bevel gear can be meshed with the driving bevel gear; a second cleaning roller disposed at a second end of the mounting frame; the cleaning belt is sleeved on the peripheries of the first cleaning roller and the second cleaning roller; a liquid storage tank provided on the base; and the connecting unit is arranged on the base and/or the mounting frame, and the sand mold 3D printer further comprises the cleaning assembly. The cleaning assembly and the sand mold 3D printer provided by the invention are convenient to detach and clean.
Description
Technical Field
The invention relates to the technical field of sand mold manufacturing equipment, in particular to a cleaning assembly and a sand mold 3D printer.
Background
The sand mould 3D printer is a sand mould manufacturing device which is formed by arranging sand layer by layer in a forming box through a sand arranging component, and after sand is arranged each time, spraying and printing a resin binder on sand materials by using a nozzle so as to bond the sand materials at the spraying and printing position layer by layer, and finally superposing the sand materials to form a required part. Since the bottom of the nozzle is inevitably stained with the sand during the process of spraying the resin binder onto the sand, it is generally necessary to clean the nozzle after a period of time for spray printing to prevent the nozzle from clogging.
The existing 3D sand mould printer adopts a cleaning mode that a cleaning roller exposed outside is arranged at one end of a frame. When the nozzle needs to be cleaned, the nozzle moves to the upper part of the cleaning roller and is in contact with the cleaning roller, so that the aim of cleaning is fulfilled.
However, the above-described cleaning method has disadvantages in that: because in the sand distribution process of the sand distribution assembly, dust can not be raised, sand in the air can be deposited on the cleaning roller, however, the 3D sand printer is inconvenient to detach the cleaning roller for cleaning, and therefore the cleaning effect is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a cleaning assembly and a sand mold 3D printer, so that the cleaning assembly is convenient to detach and clean, and the cleaning effect on a nozzle is improved.
To achieve the above object, in one aspect, the present invention provides a cleaning assembly for cleaning a nozzle, comprising:
the base is symmetrically provided with sliding rails at two ends of the top, and sliding grooves are formed in one side of the two sliding rails opposite to each other;
the motor is fixedly connected with one sliding rail and is positioned at one side of the sliding rail far away from the other sliding rail, a power output shaft of the motor is provided with a drive bevel gear, the drive bevel gear is in sliding connection with the power output shaft of the motor, and the drive bevel gear can slide along the axial direction of the power output shaft of the motor;
the first elastic piece is sleeved on the power output shaft of the motor, two ends of the first elastic piece are respectively connected with the motor and the drive bevel gear, and the first elastic piece has a tendency of enabling the drive bevel gear to move in a direction away from the motor in a natural state;
a cleaning unit, comprising:
the mounting rack is arranged between the two sliding rails, and two sides of the mounting rack are respectively inserted into the two sliding grooves in a sliding manner;
the first cleaning roller is arranged at the first end of the mounting frame and is rotationally connected with the mounting frame, a driven bevel gear is coaxially sleeved at the first end of the first cleaning roller, and the driven bevel gear can be meshed with the driving bevel gear;
the second cleaning roller is arranged at the second end of the mounting frame and is rotationally connected with the mounting frame; and
the cleaning belt is annular, is sleeved on the peripheries of the first cleaning roller and the second cleaning roller and can rotate along with the rotation of the first cleaning roller and/or the second cleaning roller;
a liquid storage tank provided on the base; and
and the connecting unit is arranged on the base and/or the mounting frame and is used for fixing the cleaning unit on the base.
Further, the connecting unit includes two coupling mechanisms of two symmetry settings, two coupling mechanisms set up respectively the both ends of base, coupling mechanism includes:
a connection jack arranged at the second end of the mounting frame;
the connecting block is matched with the connecting jack and is fixedly connected with the base; and
and the locking structure is used for locking the connecting block and the mounting frame.
Further, the connection mechanism further includes:
the first end of the connecting rod is fixedly connected with the base, the second end of the connecting rod extends upwards freely, the middle part of the connecting rod is fixedly connected with the second end of the connecting rod, and the two ends of the connecting rod extend freely;
the support seat is arranged below the connecting block and is in sliding connection with the base, the support seat can longitudinally slide, the sliding rail is fixedly connected with the support seat, and two ends of the liquid storage tank are respectively fixedly connected with the support seat; and
the two ends of the second elastic piece are respectively connected with the base and the supporting seat, and in a natural state, the second elastic piece has a tendency of enabling the supporting seat to move upwards;
the locking structure includes:
a lock pin slidably disposed on one side of the connection jack and reciprocally movable in a direction toward or away from an axis of the connection jack between a first operating position and a second operating position, wherein the lock pin is retracted within a sidewall of the connection jack when the lock pin is in the first operating position and extends beyond the sidewall of the connection jack and is positioned on a side of the connection block facing the base when the lock pin is in the second operating position; and
the two ends of the third elastic piece are respectively connected with the locking bolt and the mounting frame, and in a natural state, the third elastic piece has a tendency of enabling the locking bolt to move towards the axial lead close to the connecting jack;
the side, facing the base, of one end of the locking bolt facing the axial lead of the connecting jack is provided with a first guide inclined plane, and one side, far away from the connecting rod, of one end of the connecting block, near the locking bolt is provided with a second guide inclined plane.
Further, the connecting mechanism further comprises a sliding block, the sliding block is sleeved on the connecting rod in a sliding mode, and a third guide inclined plane is arranged on one side, facing the base, of one end, close to the locking bolt, of the sliding block.
Further, the mounting frame includes:
the first cleaning roller is rotatably arranged at the first end of the first bracket; and
the second cleaning roller is rotatably arranged at the first end of the second bracket, and the second end of the second bracket is in sliding connection with the second end of the first bracket;
the cleaning assembly further comprises a locking unit arranged on the first bracket and/or the second bracket, wherein the locking unit is used for keeping the first cleaning roller and the second cleaning roller at a first interval and a second interval, the first interval is larger than the second interval, and when the first cleaning roller and the second cleaning roller are at the first interval, the cleaning belt can rotate along with the rotation of the first cleaning roller and/or the second cleaning roller.
Further, the locking unit includes: the locking unit includes:
the first end of the locking pull rod is hinged with the first bracket, and the second end of the locking pull rod is provided with a sliding part;
the guide groove is formed in the side wall of the second bracket and is used for guiding the sliding of the sliding part, and comprises a sliding-in sliding-out guide part, a first guide part, a temporary fixing part and a second guide part, wherein the sliding-in sliding-out guide part, the first guide part, the temporary fixing part and the second guide part are sequentially connected end to form a heart-shaped groove, the sliding part slides along the sliding-in sliding-out guide part and the first guide part towards the temporary fixing part and can be temporarily positioned at the temporary fixing part, and the sliding part slides along the second guide part and the sliding-in sliding-out guide part towards one end of the sliding-in sliding-out guide part away from the temporary fixing part and can be temporarily positioned at one end of the sliding-in sliding-out guide part away from the temporary fixing part; and
and the two ends of the fourth elastic piece are respectively connected with the first bracket and the second bracket, and in a natural state, the fourth elastic piece has a tendency of enabling the first bracket and the second bracket to move in a direction away from each other.
On the other hand, the invention also provides a sand mold 3D printer, which comprises the cleaning assembly.
The invention has the beneficial effects that:
according to the cleaning assembly and the sand mould D printer, when the cleaning belt is required to be cleaned, the fixing of the connecting unit to the cleaning unit is released, and then the cleaning unit can be detached by pulling the mounting frame out of the sliding rails, so that the aim of cleaning the cleaning belt is fulfilled, and the aim of improving the cleaning effect of the nozzle is fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a perspective view of a cleaning assembly according to an embodiment of the present invention;
FIG. 2 is a front view of the cleaning assembly shown in FIG. 1;
fig. 3 is an enlarged view at a shown in fig. 1;
fig. 4 is an enlarged view at B shown in fig. 1;
fig. 5 is an enlarged view at C shown in fig. 2;
fig. 6 is an enlarged view at D shown in fig. 2;
FIG. 7 is a cross-sectional view in the E-E direction shown in FIG. 2;
fig. 8 is an enlarged view at F shown in fig. 7;
fig. 9 is an enlarged view at G shown in fig. 7;
fig. 10 is an enlarged view at H shown in fig. 9;
FIG. 11 is a perspective view of a cleaning unit of the cleaning assembly shown in FIG. 1;
FIG. 12 is an enlarged view at I shown in FIG. 11;
FIG. 13 is a left side view of the cleaning unit shown in FIG. 11;
fig. 14 is an enlarged view at J shown in fig. 13.
Reference numerals:
the cleaning apparatus includes a base 100, a motor 200, a drive bevel gear 210, a first elastic member 300, a cleaning unit 400, a mounting frame 410, a first bracket 411, a second bracket 412, a first cleaning roller 420, a driven bevel gear 421, a second cleaning roller 430, a cleaning belt 440, a sump 500, a slide rail 700, a slide groove 710, a connection mechanism 600, a connection insertion hole 610, a connection block 620, a locking structure 630, a locking latch 631, a third elastic member 632, a connection rod 640, a support base 650, a second elastic member 660, a slider 670, a locking unit, a locking pull rod 810, a sliding portion 811, a guide groove 820, a slide-in and slide-out guide 821, a first guide 822, a tentative portion 823, a second guide 824, and a fourth elastic member 830.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
As shown in fig. 1 to 14, the present invention provides a cleaning assembly for cleaning a nozzle, which includes a base 100, a motor 200, a first elastic member 300, a cleaning unit 400, a liquid storage tank 500, and a connection unit.
Slide rails 700 are symmetrically arranged at two ends of the top of the base 100, and sliding grooves 710 are formed in one side of the two slide rails 700. The motor 200 is fixedly connected with one of the sliding rails 700 and is positioned on one side of the sliding rail 700 away from the other sliding rail 700, and a power output shaft of the motor 200 is coaxially sleeved with the driving bevel gear 210. The drive bevel gear 210 is slidably coupled to the power output shaft of the motor 200, and the drive bevel gear 210 is slidable along the axial direction of the power output shaft of the motor 200. Specifically, the drive bevel gear 210 is connected with the power output shaft of the motor 200 through a spline structure, so that the drive bevel gear 210 can slide along the axial line direction of the power output shaft of the motor 200, and the motor 200 can drive the drive bevel gear 210 to rotate.
The first elastic member 300 is sleeved on the power output shaft of the motor 200, and both ends of the first elastic member 300 are respectively connected with the motor 200 and the drive bevel gear 210, and in a natural state, have a tendency to move the drive bevel gear 210 in a direction away from the motor 200. Specifically, the first elastic member 300 is a spring. In use, the purpose of ensuring that the drive bevel gear 210 and the driven bevel gear are always engaged is achieved by the elastic force of the first elastic member 300.
The cleaning unit 400 includes a mounting frame 410, a first cleaning roller 420, a second cleaning roller 430, and a cleaning belt 440.
The mounting frame 410 is located between the two sliding rails 700, and two sides of the mounting frame 410 are respectively slidably inserted into the two sliding grooves 710. In use, the mounting frame 410 can be inserted between the two slide rails 700, and when the mounting frame 410 needs to be disassembled, the mounting frame 410 can be pulled out of the slide rails 700.
The first cleaning roller 420 is disposed at a first end of the mounting frame 410 and rotatably connected to the mounting frame 410, and a driven bevel gear 421 is coaxially disposed at the first end of the first cleaning roller 420, and the driven bevel gear 421 is engaged with the drive bevel gear 210. The second cleaning roller 430 is disposed at a second end of the mounting frame 410 and is rotatably coupled to the mounting frame 410. The cleaning belt 440 has a ring shape, and the cleaning belt 440 is sleeved around the first cleaning roller 420 and the second cleaning roller 430 and can rotate with the rotation of the first cleaning roller 420 and/or the second cleaning roller 430. In use, the motor 200 drives the first cleaning roller 420 to rotate, so as to drive the cleaning belt 440 to rotate, and further clean the nozzle.
The reservoir 500 is provided on the base 100. Specifically, in use, the second cleaning roller 430 is immersed below the level of the cleaning liquid in the reservoir 500, so that the cleaning liquid is always adhered to the cleaning belt 440 as the cleaning belt 440 rotates. The connection unit is provided on the base 100 and/or the mounting frame 410 for fixing the cleaning unit 400 to the base 100.
When in use, the mounting frame 410 is inserted between the two sliding rails 700, the cleaning unit 400 is fixed on the base 100 by the connecting unit, when the nozzle needs to be cleaned, the nozzle moves to the upper part of the cleaning unit 400, and the motor 200 drives the first cleaning roller 420 to rotate, so that the cleaning belt 440 is driven to rotate, and the purpose of cleaning the nozzle is achieved.
When the cleaning belt 440 needs to be cleaned, the fixing of the connecting unit to the cleaning unit 400 is released, and then the mounting frame 410 is pulled out from between the sliding rails 700 to detach the cleaning unit 400, so that the aim of cleaning the cleaning belt 440 is fulfilled, and the aim of improving the cleaning effect of the nozzle is fulfilled.
In one embodiment, the connection unit includes two connection mechanisms 600 symmetrically disposed, the two connection mechanisms 600 are disposed at both ends of the base 100, respectively, and the connection mechanisms 600 include connection insertion holes 610, connection blocks 620, and locking structures 630.
The connection jack 610 is formed at a second end of the mounting frame 410. The connection block 620 is adapted to the connection jack 610, and the connection block 620 is fixedly connected to the base 100. The locking structure 630 serves to lock the connection block 620 and the mounting frame 410.
In use, the mounting frame 410 is first inserted between the two sliding rails 700 until the connection block 620 is inserted into the connection jack 610, and then the locking structure 630 is used to lock the connection block 620 and the mounting frame 410, thereby achieving the purpose of fixedly mounting the cleaning unit 400.
The connection mechanism 600 of this structure has a simple structure, a reasonable design, and is convenient to detach and install the cleaning unit 400.
In one embodiment, the connection mechanism 600 further includes a connection rod 640, a support seat 650, and a second elastic member 660.
The first end of the connecting rod 640 is fixedly connected with the base 100, the second end of the connecting rod 640 extends upwards freely, the middle part of the connecting block 620 is fixedly connected with the second end of the connecting rod 640, the two ends of the connecting block 620 extend freely, and the connecting block 620 and the connecting rod 640 form a T shape.
The supporting seat 650 is located under the connection block 620 and slidably connected with the base 100, specifically, a guide rod is fixedly disposed at the top of the base 100, the supporting seat 650 is slidably connected with the base 100 through the guide rod, the supporting seat 650 can slide longitudinally, the sliding rail 700 is fixedly connected with the supporting seat 650, and two ends of the liquid storage tank 500 are respectively fixedly connected with the supporting seat 650.
The two ends of the second elastic element 660 are respectively connected with the base 100 and the supporting seat 650, specifically, the second elastic element 660 is a spring, the second elastic element 660 is sleeved on the guide rod, the two ends of the second elastic element 660 are respectively connected with the base 100 and the supporting seat 650, and in a natural state, the second elastic element 660 has a tendency to enable the supporting seat 650 to move upwards.
Preferably, the number of the guide bars and the second elastic members 660 is not less than two in order to facilitate the stability of the support base 650.
Locking structure 630 includes a lock bolt 631 and a third resilient member 632.
The third elastic member 632 is connected to the locking pin 631 and the mounting bracket 410 at both ends thereof, and specifically, the third elastic member 632 is installed in the mounting hole. And in a natural state, the third elastic member 632 has a tendency to move the lock pin 631 toward the axis line near the connection insertion hole 610.
Preferably, the number of the locking pins 631 and the third elastic member 632 is two, and the two locking pins 631 are respectively located at the connection of the connection block 620.
Wherein a side of an end of lock pin 631 facing an axis of connection jack 610 facing base 100 has a first guide slope. The side of the end of the connection block 620, which is adjacent to the lock pin 631, which is remote from the connection rod 640, is provided with a second guide slope. In use, in the process of inserting the connection block 620 into the connection jack 610, under the action of the first guide inclined plane and the second guide inclined plane, the locking pin 631 will move in a direction away from the axis of the connection jack 610, so that the connection block 620 can pass through the locking pin 631, and the locking pin 631 can move to the side of the connection block 620 facing the base 100, so as to achieve the purpose of locking the connection block 620 and the mounting frame 410.
In use, during the process of inserting the cleaning unit 400 between the two sliding rails 700, the mounting frame 410 firstly collides with the supporting seat 650, and then the mounting frame 410 pushes the supporting seat 650 to move, so that the supporting seat 650 moves towards the direction approaching the base 100 against the elastic force of the second elastic member 660 until the connection block 620 is inserted into the connection insertion hole 610. In the process of inserting the connection block 620 into the connection jack 610, under the co-operation of the first guide inclined plane and the second guide inclined plane, the connection block 620 pushes the lock latch 631 to move, so that the lock latch 631 overcomes the elastic force of the third elastic member 632 to move into the mounting hole, and the connection block 620 can pass through the lock latch 631 and move to the side of the lock latch 631 far away from the base 100, when the connection block 620 moves to the side of the lock latch 631 far away from the base 100, the lock latch 631 moves to the side of the connection block 620 facing the base 100 under the elastic force of the third elastic member 632, thereby achieving the purpose of preventing the connection block 620 from moving out of the lock jack, and further achieving the purpose of locking the connection block 620 and the mounting frame 410.
The locking structure 630 of this structure has simple structure and reasonable design.
In one embodiment, the connection mechanism 600 further includes a slider 670, the slider 670 is slidably disposed on the connection rod 640, and a side of the end of the slider 670 near the lock pin 631 facing the base 100 is provided with a third guiding slope.
When it is required to disassemble the cleaning unit 400, the mounting frame 410 is pressed again in a direction approaching the base 100, the locking latch 631 firstly collides with the sliding block 670, and as the mounting frame 410 continues to move in a direction approaching the base 100, the sliding block 670 forces the locking latch 631 to move into the mounting hole against the elastic force of the third elastic member 632 under the action of the first guide inclined surface, so that the sliding block 670 moves to the side of the locking latch 631 away from the base 100, and then the locking latch 631 moves to the side of the sliding block 670 facing the base 100 under the elastic force of the third elastic member 632. Then, the mounting frame 410 is pulled outwards, under the action of the locking pin 631, the sliding block 670 moves towards the direction close to the connecting block 620, when the sliding block 670 collides with the connecting block 620, the sliding block 670 cannot move continuously, under the action of the third guiding inclined plane, the locking pin 631 is forced to move towards the mounting hole by the sliding block 670 against the elastic force of the third elastic piece 632, so that the connecting block 620 and the sliding block 670 can be pulled out from the connecting jack 610 through the locking pin 631, and the aim of detaching the cleaning unit 400 is fulfilled.
The connecting structure of the structure has the advantages of simple structure and reasonable design, the cleaning unit 400 is inserted into the sliding rail 700, the purpose of installing the cleaning unit 400 can be achieved, the purpose of pulling the cleaning unit 400 out of the sliding rail 700 can be achieved by pressing the cleaning unit 400 again, and the connecting structure is simple to operate and convenient to use.
In one embodiment, the mounting frame 410 includes a first bracket 411 and a second bracket 412.
The first cleaning roller 420 is rotatably installed at a first end of the first bracket 411, i.e., an end of the first bracket 411 remote from the second bracket 412. The second cleaning roller 430 is rotatably disposed at a first end of the second bracket 412, i.e., an end of the second bracket 412 remote from the first bracket 411. A second end of the second bracket 412 is slidably coupled to a second end of the first bracket 411. Specifically, the second end of the second bracket 412 is slidably inserted into the second end of the first bracket 411. When the cleaning belt is used, the second end of the second bracket 412 is slidably connected with the second end of the first bracket 411, so that the distance between the first cleaning roller 420 and the second cleaning roller 430 can be changed, when the distance between the first cleaning roller 420 and the second cleaning roller 430 is reduced, the cleaning belt 440 can be conveniently removed from the first cleaning roller 420 and the second cleaning roller 430, the cleaning belt 440 can be conveniently sleeved on the first cleaning roller 420 and the second cleaning roller 430, and the cleaning belt 440 sleeved on the first cleaning roller 420 and the second cleaning roller 430 can be gradually tightened along with the increase of the distance between the first cleaning roller 420 and the second cleaning roller 430, so that the purpose that the cleaning belt 440 can rotate along with the rotation of the first cleaning roller 420 or the second cleaning roller 430 is achieved.
The cleaning assembly further includes a locking unit.
The locking unit is provided on the first bracket 411 and/or the second bracket 412 to maintain the first cleaning roller 420 and the second cleaning roller 430 at a first interval and a second interval, wherein the first interval is greater than the second interval, and the cleaning belt 440 may rotate with the rotation of the first cleaning roller 420 and/or the second cleaning roller 430 when the first cleaning roller 420 and the second cleaning roller 430 are at the first interval.
When the cleaning belt 440 is required to be detached or installed in use, the distance between the first cleaning roller 420 and the second cleaning roller 430 is at the second interval, and the locking unit maintains the distance between the first cleaning roller 420 and the second cleaning roller 430 at the second interval under the action of the locking unit, so that the purpose of facilitating the detachment and installation of the cleaning belt 440 is achieved. After the cleaning belt 440 is sleeved on the first cleaning roller 420 and the second cleaning roller 430, the distance between the first cleaning roller 420 and the second cleaning roller 430 is changed from the second interval to the first interval, so that the cleaning belt 440 is in a tight state, and the purpose of installing the cleaning belt 440 is achieved.
The cleaning unit 400 of this structure facilitates the installation and removal of the cleaning belt 440.
In one embodiment, the locking unit includes a locking lever 810, a guide groove 820, and a fourth elastic member 830.
The locking lever 810 has a first end hinged to the first bracket 411 and a second end having a sliding portion 811.
A guide groove 820 is provided on a side wall of the second bracket 412, the guide groove 820 being for guiding sliding of the sliding portion 811, the guide groove 820 including a slide-in and slide-out guide portion 821, a first guide portion 822, a temporary portion 823, and a second guide portion 824. The slide-in and slide-out guide portion 821, the first guide portion 822, the tentative portion 823, and the second guide portion 824 are connected end to end in order to form a heart-shaped groove.
The sliding portion 811 slides along the slide-in and slide-out guide portion 821 and the first guide portion 822 toward the tentative portion 823 and is temporarily positionable in the tentative portion 823. Specifically, the sliding portion 811 first slides along the slide-in and slide-out guide portion 821 toward the first guide portion 822 and then slides along the first guide portion 822 toward the tentative portion 823, which is a process in which the distance between the first cleaning roller 420 and the second cleaning roller 430 is changed from the first pitch to the second pitch, and when the sliding portion 811 slides to the tentative portion 823 and is temporarily positioned at the tentative portion 823, the pitch between the first cleaning roller 420 and the second cleaning roller 430 is changed to the second pitch and is finally maintained at the second pitch.
The sliding portion 811 is slid along the second guide portion 824 and the slide-in and slide-out guide portion 821 toward an end of the slide-in and slide-out guide portion 821 away from the provisional portion 823 after being separated from the provisional portion 823, and is temporarily positionable at an end of the slide-in and slide-out guide portion 821 away from the provisional portion 823. Specifically, after the sliding portion 811 leaves the tentative portion 823, it is first slid along the second guide portion 824 toward the slide-in and slide-out guide portion 821, and then slid along the slide-in and slide-out guide portion 821 toward an end of the slide-in and slide-out guide portion 821 away from the tentative portion 823, which is a process in which the gap between the first cleaning roller 420 and the second cleaning roller 430 is changed from the second gap to the first gap, and when the sliding portion 811 moves to an end of the slide-in and slide-out guide portion 821 away from the tentative portion 823 and is finally temporarily positioned at an end of the slide-in and slide-out guide portion 821 away from the tentative portion 823, the gap between the first cleaning roller 420 and the second cleaning roller 430 is changed to the first gap and is finally maintained at the first gap.
The fourth elastic member 830 has both ends connected to the first and second brackets 411 and 412, respectively, and has a tendency to move the first and second brackets 411 and 412 away from each other in a natural state. Specifically, the fourth elastic member 830 is a spring, the fourth elastic member 830 is installed in the first bracket 411, and both ends of the fourth elastic member 830 are connected to the first bracket 411 and the second bracket 412, respectively.
In use, by pressing the first bracket 411 and/or the second bracket 412 such that the first bracket 411 and the second bracket 412 approach each other against the elastic force of the fourth elastic member 830, in the process, the sliding portion 811 slides along the slide-in and slide-out guide portion 821 toward the first guide portion 822, pressing of the first bracket 411 and/or the second bracket 412 is stopped when the sliding portion 811 slides to the junction of the slide-in and slide-out guide portion 821 and the first guide portion 822, the first bracket 411 and the second bracket 412 move away from each other under the elastic force of the fourth elastic member 830, in the process, the sliding portion 811 slides toward the tentative portion 823 along the first guide portion 823, the sliding portion 811 is held at the tentative portion 823 by the fourth elastic member 830, and the space between the first cleaning roller 420 and the second cleaning roller 430 is held at the second space.
The first bracket 411 and/or the second bracket 412 are pressed again such that the first bracket 411 and the second bracket 412 approach each other against the elastic force of the fourth elastic member 830, in the process, the sliding portion 811 is slid away from the tentative portion 823 toward the slide-in and slide-out guide portion 821 along the second guide portion 824, when the sliding portion 811 is slid to the junction of the slide-in and slide-out guide portion 821 and the second guide portion 824, the first bracket 411 and/or the second bracket 412 are pressed, the first bracket 411 and the second bracket 412 are moved away from each other by the elastic force of the fourth elastic member 830, in the process, the sliding portion 811 is slid toward the end of the slide-in and slide-out guide portion 821 away from the tentative portion 823 along the slide-in and slide-out guide portion 821, the sliding portion 811 is held at the end of the slide-in and slide-out guide portion 821 kept away from the tentative portion 823 by the fourth elastic member 830, and the first gap between the first cleaning roller 420 and the second cleaning roller 430 is kept at the first gap.
The locking unit with the structure has the advantages that the structure is simple, the design is reasonable, the first space between the first cleaning roller 420 and the second cleaning roller 430 can be changed into the second space and kept at the second space by pressing the first bracket 411 and/or the second bracket 412 once, the second space between the first cleaning roller 420 and the second cleaning roller 430 can be changed into the first space and kept at the first space by pressing the first bracket 411 and/or the second bracket 412 again, and the operation is convenient.
The invention also provides a sand mold 3D printer, which comprises any one of the cleaning components. Specifically, the sand mold 3D printer further includes a nozzle, a first driving assembly for driving the nozzle to move, a sand distributor, and a second driving assembly for driving the sand distributor to move, which are all of the prior art, and are not described in detail herein, and are not shown in the drawings.
In the description of the present invention, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (7)
1. A cleaning assembly for cleaning a nozzle, characterized by: it comprises the following steps:
the base is symmetrically provided with sliding rails at two ends of the top, and sliding grooves are formed in one side of the two sliding rails opposite to each other;
the motor is fixedly connected with one sliding rail and is positioned at one side of the sliding rail far away from the other sliding rail, a power output shaft of the motor is provided with a drive bevel gear, the drive bevel gear is in sliding connection with the power output shaft of the motor, and the drive bevel gear can slide along the axial direction of the power output shaft of the motor;
the first elastic piece is sleeved on the power output shaft of the motor, two ends of the first elastic piece are respectively connected with the motor and the drive bevel gear, and the first elastic piece has a tendency of enabling the drive bevel gear to move in a direction away from the motor in a natural state;
a cleaning unit, comprising:
the mounting rack is arranged between the two sliding rails, and two sides of the mounting rack are respectively inserted into the two sliding grooves in a sliding manner;
the first cleaning roller is arranged at the first end of the mounting frame and is rotationally connected with the mounting frame, a driven bevel gear is coaxially sleeved at the first end of the first cleaning roller, and the driven bevel gear can be meshed with the driving bevel gear;
the second cleaning roller is arranged at the second end of the mounting frame and is rotationally connected with the mounting frame; and
the cleaning belt is annular, is sleeved on the peripheries of the first cleaning roller and the second cleaning roller and can rotate along with the rotation of the first cleaning roller and/or the second cleaning roller;
a liquid storage tank provided on the base; and
and the connecting unit is arranged on the base and/or the mounting frame and is used for fixing the cleaning unit on the base.
2. The cleaning assembly of claim 1, wherein: the connecting unit includes two coupling mechanism that two symmetries set up, two coupling mechanism sets up respectively the both ends of base, coupling mechanism includes:
a connection jack arranged at the second end of the mounting frame;
the connecting block is matched with the connecting jack and is fixedly connected with the base; and
and the locking structure is used for locking the connecting block and the mounting frame.
3. The cleaning assembly of claim 2, wherein: the connection mechanism further includes:
the first end of the connecting rod is fixedly connected with the base, the second end of the connecting rod extends upwards freely, the middle part of the connecting rod is fixedly connected with the second end of the connecting rod, and the two ends of the connecting rod extend freely;
the support seat is arranged below the connecting block and is in sliding connection with the base, the support seat can longitudinally slide, the sliding rail is fixedly connected with the support seat, and two ends of the liquid storage tank are respectively fixedly connected with the support seat; and
the two ends of the second elastic piece are respectively connected with the base and the supporting seat, and in a natural state, the second elastic piece has a tendency of enabling the supporting seat to move upwards;
the locking structure includes:
a lock pin slidably disposed on one side of the connection jack and reciprocally movable in a direction toward or away from an axis of the connection jack between a first operating position and a second operating position, wherein the lock pin is retracted within a sidewall of the connection jack when the lock pin is in the first operating position and extends beyond the sidewall of the connection jack and is positioned on a side of the connection block facing the base when the lock pin is in the second operating position; and
the two ends of the third elastic piece are respectively connected with the locking bolt and the mounting frame, and in a natural state, the third elastic piece has a tendency of enabling the locking bolt to move towards the axial lead close to the connecting jack;
the side, facing the base, of one end of the locking bolt facing the axial lead of the connecting jack is provided with a first guide inclined plane, and one side, far away from the connecting rod, of one end of the connecting block, near the locking bolt is provided with a second guide inclined plane.
4. A cleaning assembly according to claim 3, wherein: the connecting mechanism further comprises a sliding block, the sliding block is arranged on the connecting rod in a sliding sleeve mode, and a third guide inclined plane is arranged on one side, facing the base, of one end, close to the locking bolt, of the sliding block.
5. The cleaning assembly of any one of claims 1-4, wherein: the mounting bracket includes:
the first cleaning roller is rotatably arranged at the first end of the first bracket; and
the second cleaning roller is rotatably arranged at the first end of the second bracket, and the second end of the second bracket is in sliding connection with the second end of the first bracket;
the cleaning assembly further comprises a locking unit arranged on the first bracket and/or the second bracket, wherein the locking unit is used for keeping the first cleaning roller and the second cleaning roller at a first interval and a second interval, the first interval is larger than the second interval, and when the first cleaning roller and the second cleaning roller are at the first interval, the cleaning belt can rotate along with the rotation of the first cleaning roller and/or the second cleaning roller.
6. The cleaning assembly of claim 5, wherein: the locking unit includes: the locking unit includes:
the first end of the locking pull rod is hinged with the first bracket, and the second end of the locking pull rod is provided with a sliding part;
the guide groove is formed in the side wall of the second bracket and is used for guiding the sliding of the sliding part, and comprises a sliding-in sliding-out guide part, a first guide part, a temporary fixing part and a second guide part, wherein the sliding-in sliding-out guide part, the first guide part, the temporary fixing part and the second guide part are sequentially connected end to form a heart-shaped groove, the sliding part slides along the sliding-in sliding-out guide part and the first guide part towards the temporary fixing part and can be temporarily positioned at the temporary fixing part, and the sliding part slides along the second guide part and the sliding-in sliding-out guide part towards one end of the sliding-in sliding-out guide part away from the temporary fixing part and can be temporarily positioned at one end of the sliding-in sliding-out guide part away from the temporary fixing part; and
and the two ends of the fourth elastic piece are respectively connected with the first bracket and the second bracket, and in a natural state, the fourth elastic piece has a tendency of enabling the first bracket and the second bracket to move in a direction away from each other.
7. A sand mould 3D printer comprising a cleaning assembly as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310054567.6A CN116079009B (en) | 2023-02-03 | 2023-02-03 | Clean subassembly and sand mould 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310054567.6A CN116079009B (en) | 2023-02-03 | 2023-02-03 | Clean subassembly and sand mould 3D printer |
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| CN116079009A true CN116079009A (en) | 2023-05-09 |
| CN116079009B CN116079009B (en) | 2023-12-01 |
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| CN116079009B (en) | 2023-12-01 |
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