CN108817326B - Cleaning device for 3D printing sand core and working method thereof - Google Patents
Cleaning device for 3D printing sand core and working method thereof Download PDFInfo
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- CN108817326B CN108817326B CN201810667108.4A CN201810667108A CN108817326B CN 108817326 B CN108817326 B CN 108817326B CN 201810667108 A CN201810667108 A CN 201810667108A CN 108817326 B CN108817326 B CN 108817326B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
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- 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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Abstract
A cleaning device for a 3D printing sand core comprises a sand core transfer device, a workbench, a sand grain cleaning device and a control device, wherein the sand core transfer device is positioned on one side of the workbench, one side of the sand core transfer device adjacent to the workbench is a carrying end of the sand core transfer device, the sand grain cleaning device is arranged on the workbench to clean sand grains in a cavity of the sand core, the control device is electrically connected with the sand core transfer device, the workbench and the sand grain cleaning device, the sand core cleaning device comprises a sand blowing mechanism and a sand sucking mechanism, the sand blowing mechanism and the sand sucking mechanism are arranged on the workbench, an air outlet of the sand blowing mechanism is communicated with an air inlet of the cavity of the sand core on the workbench to blow high-pressure air into the cavity, an air inlet of the sand sucking mechanism is communicated with an air hole at the bottom of the cavity of the sand core to suck the sand grains in the cavity, and the sand blowing mechanism is matched with the sand sucking mechanism, so as to discharge sand grains in the cavity, and the sand blowing mechanism comprises a high-pressure air tank, a pneumatic distributor and a sand blowing air pipe.
Description
Technical Field
The invention relates to the technical field of casting processing, in particular to a cleaning device for a 3D printing sand core and a working method thereof.
Background
The three-dimensional printing (3DP) process is also called 3D printing technology. Along with the development and application of the 3D printing technology in the field of casting industry, corresponding industrial chains are gradually extended, and flexible manufacturing factories such as related printing equipment, sand core cleaning equipment, sand core transportation equipment, sand core spraying equipment, stereoscopic warehouses and the like are generated, so that the conversion of the casting industry to the intelligent and digital directions is greatly promoted. The continuous exploration and innovation of the equipment manufacturing field enable 3D printing additive manufacturing to be widely concerned, popularized and applied in various manufacturing fields.
In the 3D printing, powder materials are printed on the cross section of a part by using a binder sprayed by a spray head, and the powder materials are bonded layer by layer to finally realize a bonded body of three-dimensional powder. Through the whole psammitolite that 3D printed, can be covered with the powder sand grain in its inside die cavity, the psammitolite die cavity inner structure after printing the completion is complicated, and the powder sand grain is difficult to be cleared up from the die cavity, if only simple clearance sand grain through compressed air, so very difficult sand grain sanitization with inside, the cleaning process is wasted time and energy, and the cleaning process is great to environmental pollution moreover.
Disclosure of Invention
In view of the above, there is a need for a cleaning apparatus for a 3D printing core that facilitates cleaning of sand particles in the core.
The invention also provides a working method for cleaning sand grains by using the cleaning device for the 3D printing sand core.
A cleaning device for a 3D printing sand core comprises a sand core transfer device, a workbench, a sand grain cleaning device and a control device, wherein the sand core transfer device is positioned on one side of the workbench, one side of the sand core transfer device adjacent to the workbench is a carrying end of the sand core transfer device, the sand core is transferred to the workbench by using the carrying end of the sand core transfer device, the sand grain cleaning device is arranged on the workbench to clean sand grains in a cavity of the sand core, the control device is electrically connected with the sand core transfer device, the workbench and the sand grain cleaning device to control the operation of the sand core transfer device, the workbench and the sand grain cleaning device, the sand grain cleaning device comprises a sand blowing mechanism and a sand sucking mechanism, the sand blowing mechanism and the sand sucking mechanism are arranged on the workbench, an air outlet of the sand blowing mechanism is communicated with an air inlet of the cavity of the sand core on the workbench to blow high-pressure air into the cavity, the sand-sucking mechanism comprises a sand-sucking pump, a sand-sucking air pipe and a sand-sucking tank, wherein the air inlet of the sand-sucking pump is communicated with the air hole in the bottom of the cavity of the sand core, so that sand grains in the cavity are sucked out; preferably, the workbench comprises a support frame, an operating platform, a vibration device and a second sand core clamping mechanism, wherein the support frame is provided with at least three support columns, the operating platform is fixedly connected with the support columns, the vibration device is positioned below the operating platform, the vibration end of the vibration device is fixedly connected with the operating platform so as to drive the operating platform to vibrate, and the second sand core clamping mechanism is arranged on the operating platform so as to clamp and fix the sand core; the vibrating device comprises a motor support and a vibrating motor, the edge of the motor support is fixedly connected with the support column, the vibrating motor is arranged on the motor support, and the vibrating end of the vibrating motor is fixedly connected with the operating platform to provide vibration for the operating platform.
Preferably, psammitolite transfer device includes fixed baseplate, first elevating system, first psammitolite fixture, fixed baseplate's upper end is equipped with a driving motor, and vertical upwards of a driving motor's pivot, a driving motor's pivot and a lifting mechanism are connected to make a lifting mechanism rotate in the horizontal direction, and a lifting mechanism includes revolving stage, stand guide rail, bearer frame, second actuating mechanism, the bottom of revolving stage and a driving motor's pivot fixed connection, the upper end and the stand guide rail fixed connection of revolving stage bear the frame cover and establish on the stand guide rail, and second actuating mechanism is connected with the bearer frame to drive the bearer frame and reciprocate along the stand guide rail, first psammitolite fixture and bearer frame fixed connection, so that first psammitolite fixture and bearer frame simultaneous movement.
Preferably, the second driving mechanism comprises a second driving motor and a screw rod, the second driving motor is arranged at the top of the upright guide rail, a rotating shaft of the second driving motor is connected with the screw rod to drive the screw rod to rotate, the direction of the screw rod is the same as the movement direction of the bearing frame, the bearing frame is provided with an internal thread hole matched with an external thread of the screw rod, and the bearing frame moves on the upright guide rail by rotating the screw rod.
Preferably, the second driving mechanism is a first hydraulic system, a telescopic shaft of the first hydraulic system is fixedly connected with the bearing frame, and the telescopic direction of the telescopic shaft of the first hydraulic system is the same as the movement direction of the bearing frame so as to drive the bearing frame to move on the upright guide rail.
Preferably, first psammitolite fixture includes third driving motor, backup pad, first solid fixed splint, first movable clamp plate, first splint actuating mechanism, third driving motor's fuselage and platform truck fixed connection, third driving motor's the rotatory in pivot horizontal direction, just pivot and backup pad fixed connection to drive the backup pad and rotate, first solid fixed splint and first movable clamp plate are located the both sides of backup pad respectively and just right mutually, first solid fixed splint and backup pad fixed connection, first splint actuating mechanism is connected with first movable clamp plate, in order to drive first movable clamp plate and remove, thereby adjusts first solid fixed splint and first movable clamp plate's distance.
Preferably, the first clamping plate driving mechanism and the second clamping plate driving mechanism are identical in structure, and the driving end of the first clamping plate driving mechanism is connected with the outer side of the first movable clamping plate so as to adjust the distance between the first fixed clamping plate and the first movable clamping plate by driving the first movable clamping plate, so that the sand core is clamped.
Preferably, the fixed base is provided with a horizontal guide rail, an extension line of the horizontal guide rail passes through the workbench, the horizontal guide rail is provided with a movable trolley, and the first lifting mechanism is arranged on the movable trolley so that the movable trolley drives the first lifting mechanism to move in the horizontal direction to adjust the distance between the first lifting mechanism and the workbench.
Preferably, the vibration device further comprises an angle adjusting mechanism to adjust the inclination and the inclination direction of the operating platform, the angle adjusting mechanism comprises universal joints, damping springs and second lifting mechanisms, the number of the universal joints is the same as that of the supporting columns, the upper ends of the universal joints are fixedly connected with the operating platform, the lower ends of the universal joints are fixedly connected with the upper ends of the damping springs so as to adjust the direction and the angle of the operating platform, the lower ends of the damping mechanisms are fixedly connected with the second lifting mechanisms so as to prevent the operating platform from driving the second lifting mechanisms to vibrate, the second lifting mechanisms are also fixedly connected with the motor support, the second lifting mechanisms are arranged on the supporting columns, the structures of the second lifting mechanisms are the same as those of the first lifting mechanisms, and the operating platform is inclined by adjusting the telescopic amount of the second lifting mechanisms on different supporting columns to a preset angle and direction.
Preferably, the control device comprises a horizontal linear displacement sensor, a first lifting displacement sensor, a second lifting displacement sensor, a first angular displacement sensor, a second angular displacement sensor, a first pressure sensor, a second pressure sensor and a controller, wherein the horizontal linear displacement sensor, the first lifting displacement sensor, the second lifting displacement sensor, the first angular displacement sensor, the second angular displacement sensor, the first pressure sensor and the second pressure sensor are electrically connected with the controller, the horizontal linear displacement sensor is arranged on a horizontal guide rail of the fixed base to control the displacement of the movable trolley, the first lifting displacement sensor is arranged on an upright guide rail to control the lifting of the bearing frame, the second lifting displacement sensor is arranged on the support column to control the lifting of the second lifting mechanism, and the first angular displacement sensor is arranged on the first driving motor, the sand core clamping mechanism comprises a first lifting mechanism, a second lifting mechanism, a third driving motor, a second angular displacement sensor, a first pressure sensor, a second pressure sensor and a second pressure sensor, wherein the first lifting mechanism is arranged on the third driving motor to control the horizontal rotating angle of the first lifting mechanism, the second angular displacement sensor is arranged on the third driving motor to control the rotating angle of the first sand core clamping mechanism, the first pressure sensor is arranged on the inner side of the first fixed clamp plate to detect the pressure of the first fixed clamp plate and the first movable clamp plate for clamping the sand core, and the second pressure sensor is arranged on the.
The working method for cleaning sand grains by using the cleaning device for the 3D printing sand core comprises the following steps:
step S001: adjusting the height and the angle of the first sand core clamping mechanism to clamp the sand core;
step S002: the first lifting mechanism moves to a preset position along a horizontal guide rail on the fixed base;
step S003: rotating the first lifting mechanism and adjusting the height and the angle of the first sand core clamping mechanism again to enable the sand core to be placed on the operating platform in a preset direction;
step S004: loosening the first sand core clamping mechanism and adjusting the height of the first sand core clamping mechanism to enable the first sand core clamping mechanism to be separated from the working area, and enabling the second sand core clamping mechanism to clamp the sand core;
step S005: adjusting the heights of the second lifting mechanisms on different support columns to enable the sand core to be placed on the operation platform at a preset inclination angle and an inclination direction;
step S006: and starting the sand blowing mechanism, the sand sucking mechanism and the vibration device to clean sand grains in the cavity of the sand core until the sand grains are completely cleaned, and finishing the work.
Has the advantages that: the cleaning device for the 3D printing sand core comprises a sand core transfer device, a workbench, a sand cleaning device and a control device, wherein the sand cleaning device comprises a sand blowing mechanism and a sand sucking mechanism, sand in a cavity of the sand core can be quickly cleaned through the matching of the sand blowing mechanism and the sand sucking mechanism, and the discharged sand is absorbed by a sand collecting tank, so that the environmental pollution is avoided.
Drawings
Fig. 1 is a schematic structural diagram of the cleaning device for the 3D printing sand core of the present invention.
Fig. 2 is a plan view of the first elevating mechanism of the present invention.
Fig. 3 is a schematic view of a preferred angular position of the table and grit cleaning apparatus of the present invention.
Fig. 4 is a view showing another preferred angular position of the table and grit cleaning apparatus of the present invention.
FIG. 5 is a functional block diagram of the present invention.
In the figure: the cleaning device 10 for the 3D printing sand core, the sand core transfer device 20, the fixed base 201, the horizontal guide rail 2011, the first lifting mechanism 202, the rotating table 2021, the upright post guide rail 2022, the bearing frame 2023, the second driving mechanism 2024, the first sand core clamping mechanism 203, the third driving motor 2031, the supporting plate 2032, the first fixed clamping plate 2033, the first movable clamping plate 2034, the workbench 30, the supporting frame 301, the supporting column 3011, the operating platform 302, the vibrating device 303, the motor support 3031, the vibrating motor 3032, the angle adjusting mechanism 3033, the universal joint 30331, the damping spring 30332, the second lifting mechanism 30333, the second sand core clamping mechanism 304, the clamping base 3041, the adjusting screw 3042, the second movable clamping plate 3043, the handle 3044, the sand cleaning device 40, the sand blowing mechanism 401, the pneumatic distributor 4011, the sand blowing air pipe 4012, the sand suction mechanism 402, the sand suction pump 4021, the sand suction air pipe 4022, the control device 50, the horizontal linear displacement sensor 501, A first elevation displacement sensor 502, a second elevation displacement sensor 503, a first angular displacement sensor 504, a second angular displacement sensor 505, a first pressure sensor 506, a second pressure sensor 507, and a controller 508.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 to 5, a cleaning device 10 for a 3D printing sand core includes a sand core transfer device 20, a workbench 30, a sand cleaning device 40, and a control device 50, wherein the sand core transfer device 20 is located at one side of the workbench 30, one side of the sand core transfer device 20 adjacent to the workbench 30 is a carrying end of the sand core transfer device 20, the sand core is transferred onto the workbench 30 by using the carrying end of the sand core transfer device, the sand cleaning device 40 is disposed on the workbench 30 to clean sand grains in a cavity of the sand core, the control device 50 is electrically connected with the sand core transfer device 20, the workbench 30, and the sand cleaning device 40 to control the operations of the sand core transfer device 20, the workbench 30, and the sand cleaning device 40, the sand cleaning device includes a sand blowing mechanism 401 and a sand sucking mechanism 402, the sand blowing mechanism 401 and the sand sucking mechanism 402 are disposed on the workbench 30, the air outlet of the sand blowing mechanism 401 is communicated with the air inlet of the cavity of the sand core on the workbench 30 to blow high-pressure air into the cavity, the air inlet of the sand sucking mechanism 402 is communicated with the air hole at the bottom of the cavity of the sand core to suck out sand grains in the cavity, the sand blowing mechanism 401 is matched with the sand sucking mechanism 402 to discharge sand grains in the cavity, the sand blowing mechanism 401 comprises a high-pressure air tank, a pneumatic distributor 4011 and a sand blowing air pipe 4012, the high-pressure air tank is communicated with the air inlet of the pneumatic distributor 4011, the air outlet of the pneumatic distributor 4011 is communicated with the air inlet of the sand core through the sand blowing air pipe 4012 to send high-pressure air into the cavity to clean sand grains in the cavity, the sand sucking mechanism 402 comprises a sand sucking pump 4021, a sand sucking air pipe 4022 and a sand grain collecting tank, the air inlet of the sand sucking pump 4021 is communicated with the air hole at the bottom of the cavity of the sand core through the sand sucking air pipe 4022, the collecting, to draw sand in the mold cavity into a sand collection canister.
Further, the sand core transfer device 20 comprises a fixed base 201, a first lifting mechanism 202 and a first sand core clamping mechanism 203, the upper end of the fixed base 201 is provided with a first driving motor, the rotating shaft of the first driving motor is vertically upward, the rotating shaft of the first driving motor is connected with a first lifting mechanism 202, so that the first lifting mechanism 202 can rotate in the horizontal direction, the first lifting mechanism 202 comprises a rotating table 2021, a column guide 2022, a carrying frame 2023, and a second driving mechanism 2024, the bottom of the rotating platform 2021 is fixedly connected with the rotating shaft of the first driving motor, the upper end of the rotating platform 2021 is fixedly connected with the upright post guide rail 2022, the bearing frame 2023 is sleeved on the upright post guide rail 2022, the second driving mechanism 2024 is connected with the bearing frame 2023, so as to drive the bearing frame 2023 to move up and down along the column guide 2022, and the first sand core clamping mechanism 203 is fixedly connected with the bearing frame 2023, so that the first sand core clamping mechanism 203 and the bearing frame 2023 move synchronously.
Further, the second driving mechanism 2024 includes a second driving motor and a screw rod, the second driving motor is disposed at the top of the column guide rail 2022, a rotating shaft of the second driving motor is connected to the screw rod to drive the screw rod to rotate, a direction of the screw rod is the same as a moving direction of the bearing frame 2023, the bearing frame 2023 is provided with an internal thread hole matched with an external thread of the screw rod, so that the bearing frame 2023 moves on the column guide rail 2022 by rotating the screw rod.
Further, the second driving mechanism 2024 is a first hydraulic system, a telescopic shaft of the first hydraulic system is fixedly connected to the bearing frame 2023, and a telescopic direction of the telescopic shaft of the first hydraulic system is the same as a moving direction of the bearing frame 2023, so as to drive the bearing frame 2023 to move on the column guide 2022.
Preferably, the first hydraulic system includes a hydraulic oil cylinder, an oil tank, and an electromagnetic valve, the hydraulic oil cylinder and the oil tank are connected through a pipeline, the electromagnetic valve controls the flow of hydraulic oil, and the electromagnetic valve is electrically connected to the control device 50 to control the flow of hydraulic oil.
Further, the first sand core clamping mechanism 203 includes a third driving motor 2031, a supporting plate 2032, a first fixing clamp plate 2033, a first movable clamp plate 2034 and a first clamp plate driving mechanism, the body of the third driving motor 2031 is fixedly connected with the trolley, the rotating shaft of the third driving motor 2031 rotates in the horizontal direction, and the rotating shaft is fixedly connected with the supporting plate 2032 to drive the supporting plate 2032 to rotate, the first fixing clamp plate 2033 and the first movable clamp plate 2034 are respectively located at two sides of the supporting plate 2032 and are opposite, the first fixing clamp plate 2033 is fixedly connected with the supporting plate 2032, the first clamp plate driving mechanism is connected with the first movable clamp plate 2034 to drive the first movable clamp plate 2034 to move, thereby adjusting the distance between the first fixing clamp plate 2033 and the first movable clamp plate 2034.
Further, the first clamp plate driving mechanism and the second driving mechanism 2024 have the same structure, and the driving end of the first clamp plate driving mechanism is connected to the outer side of the first movable clamp plate 2034, so as to adjust the distance between the first fixed clamp plate 2033 and the first movable clamp plate 2034 by driving the first movable clamp plate 2034, thereby clamping the sand core.
Further, a horizontal guide rail 2011 is arranged on the fixed base 201, an extension line of the horizontal guide rail 2011 passes through the workbench 30, a moving trolley is arranged on the horizontal guide rail 2011, and the first lifting mechanism 202 is arranged on the moving trolley, so that the moving trolley drives the first lifting mechanism 202 to move in the horizontal direction, and the distance between the first lifting mechanism 202 and the workbench 30 is adjusted.
Further, the workbench 30 comprises a support frame 301, an operating platform 302, a vibration device 303 and a second sand core clamping mechanism 304, wherein the support frame 301 is provided with at least three support posts 3011, the operating platform 302 is fixedly connected with the support posts 3011, the vibration device 303 is located below the operating platform 302, a vibration end of the vibration device 303 is fixedly connected with the operating platform 302 to drive the operating platform 302 to vibrate, and the second sand core clamping mechanism 304 is arranged on the operating platform 302 to clamp and fix the sand core.
In a preferred embodiment, the second sand core clamping mechanism 304 includes four movable clamping mechanisms, the four movable clamping mechanisms are respectively located in four directions of the operating platform 302 and are opposite to each other, the movable clamping mechanism includes a clamping base 3041, an adjusting screw 3042, a second movable clamping plate 3043 and a handle 3044, the clamping base 3041 is fixedly connected to the operating platform 302, the clamping base 3041 is provided with an internal threaded hole, the adjusting screw 3042 is in threaded connection with the internal threaded hole, one end of the adjusting screw 3042 is fixedly connected to the second movable clamping plate 3043, and the other end of the adjusting screw 3042 is fixedly connected to the handle 3044, so as to drive the second movable clamping plate 3043 to clamp and fix the sand core by rotating the handle 3044.
In another preferred embodiment, the second sand core clamping mechanism 304 comprises a second fixed clamping plate, a third movable clamping plate and a second clamping plate driving mechanism, the second fixed clamping plate and the third movable clamping plate are opposite, the bottom of the second fixed clamping plate is fixedly connected with the upper end of the operating platform 302, the outer side of the third movable clamping plate is connected with the driving end of the second clamping plate driving mechanism, and the structure of the second clamping plate driving mechanism is the same as that of the first clamping plate driving mechanism.
Further, the vibration device 303 includes a motor support 3031 and a vibration motor 3032, an edge of the motor support 3031 is fixedly connected to the support post 3011, the vibration motor 3032 is disposed on the motor support 3031, and a vibration end of the vibration motor 3032 is fixedly connected to the operation platform 302 to provide vibration to the operation platform 302.
Further, the vibration device 303 further comprises an angle adjusting mechanism 3033, so as to adjust the inclination and the inclination direction of the operation platform 302, the angle adjusting mechanism 3033 comprises universal joints 30331, damping springs 30332 and a second lifting mechanism 30333, the number of the universal joints 30331 is the same as that of the supporting columns 3011, the upper ends of the universal joints 30331 are fixedly connected with the operating platform 302, the lower ends of the universal joints 30331 are fixedly connected with the upper ends of the damping springs 30332, so as to adjust the direction and angle of the operation platform 302, the lower end of the shock absorbing mechanism is fixedly connected with the second lifting mechanism 30333, so as to prevent the operating platform 302 from driving the second lifting mechanism 30333 to vibrate, the second lifting mechanism 30333 is further fixedly connected with the motor support 3031, the second lifting mechanism 30333 is arranged on the support column 3011, and the structure of the second lifting mechanism 30333 is the same as that of the first lifting mechanism 202, so as to tilt the operation platform 302 by a predetermined angle and direction by adjusting the amount of extension and retraction of the second lifting mechanism 30333 on the different support posts 3011.
In a preferred embodiment, the supporting frame 301 is provided with four supporting posts 3011. Thus, the operation platform 302 can be tilted in four directions. A universal joint 30331 and a shock absorbing spring 30332 are arranged between the operating platform 302 and the motor support 3031, so that the second lifting mechanism 30333 can adapt to the inclination of the operating platform 302, and the transmission of the vibration device 303 and the second lifting mechanism 30333 can be blocked.
Further, the control device 50 includes a horizontal linear displacement sensor 501, a first elevation displacement sensor 502, a second elevation displacement sensor 503, a first angular displacement sensor 504, a second angular displacement sensor 505, a first pressure sensor 506, a second pressure sensor 507, and a controller 508, wherein the horizontal linear displacement sensor 501, the first elevation displacement sensor 502, the second elevation displacement sensor 503, the first angular displacement sensor 504, the second angular displacement sensor 505, the first pressure sensor 506, and the second pressure sensor 507 are electrically connected to the controller 508, the horizontal linear displacement sensor 501 is disposed on a horizontal rail 2011 of the fixed base 201 to control the displacement of the mobile cart, the first elevation displacement sensor 502 is disposed on an upright rail 2022 to control the elevation of the carrying frame 2023, the second elevation displacement sensor 503 is disposed on the supporting column 3011, to control the elevation of the second elevation mechanism 30333, a first angular displacement sensor 504 is provided on the first driving motor to control the horizontal rotation angle of the first elevation mechanism 202, a second angular displacement sensor 505 is provided on the third driving motor 2031 to control the rotation angle of the first core clamping mechanism 203, a first pressure sensor 506 is provided inside the first fixed clamp plate 2033 to detect the pressure at which the first fixed clamp plate 2033 and the first movable clamp plate 2034 clamp the core, and a second pressure sensor 507 is provided inside the second fixed clamp plate to detect the pressure at which the second fixed clamp plate and the third movable clamp plate clamp the core.
Because the structure of the cavity of many psammitolites is comparatively complicated, if only blow through sand-blowing mechanism 401, probably a large amount of sand grains gush into a certain narrow and small tortuous department simultaneously, cause the local jam of cavity to consume a large amount of sand removal time. If sand is sucked only by the sand sucking mechanism 402, sand in a part of the cavity is not easily discharged. Through the simultaneous action of sand blowing mechanism 401 and sand sucking mechanism 402, the sand grain is difficult to take place to block, can be simultaneously fast with the local sand grain clean up in the die cavity. Meanwhile, the vibration device 303 can enable sand grains attached to the inside of the cavity to be vibrated and fall, and in the vibration and fall process, the sand grains are matched with the sand blowing mechanism 401 and the sand sucking mechanism 402, so that the sand grains can be cleaned in the air, secondary attachment of the sand grains cannot be caused, and the sand cleaning difficulty is reduced. The vibrating device 303 of the invention is also provided with an angle adjusting mechanism 3033, and the angle adjusting mechanism 3033 can adjust the inclination angle and the inclination direction of the sand core according to the structure of the cavity, so that the sand core is positioned at the angle at which the powder sand is easy to clean from the sand core, and the corners which are difficult to clean originally are easy to clean.
The working method for cleaning sand grains by using the cleaning device 10 for the 3D printing sand core comprises the following steps:
step S001: adjusting the height and angle of the first sand core clamping mechanism 203 to clamp the sand core;
step S002: the first elevating mechanism 202 moves to a predetermined position along the horizontal guide 2011 on the fixed base 201;
step S003: rotating the first lifting mechanism 202 and adjusting the height and angle of the first sand core clamping mechanism 203 again to place the sand core on the operating platform 302 in a predetermined direction;
step S004: loosening the first sand core clamping mechanism 203 and adjusting the height of the first sand core clamping mechanism 203 to enable the first sand core clamping mechanism 203 to be separated from the working area, and enabling the second sand core clamping mechanism 304 to clamp the sand core;
step S005: adjusting the height of the second lifting mechanism 30333 on different support columns 3011 to place the sand core on the operation platform 302 at a preset inclination angle and an inclination direction;
step S006: and starting the sand blowing mechanism 401, the sand sucking mechanism 402 and the vibration device 303 to clean sand grains in the cavity of the sand core until the sand grains are completely cleaned out, and finishing the work.
The cleaning device 10 for the 3D printing sand core, the sand core transfer device 20, the fixed base 201, the horizontal guide rail 2011, the first lifting mechanism 202, the rotating table 2021, the upright guide rail 2022, the bearing frame 2023, the second driving mechanism 2024, the first sand core clamping mechanism 203, the third driving motor 2031, the supporting plate 2032, the first fixed clamping plate 2033, the first movable clamping plate 2034, the workbench 30, the supporting frame 301, the supporting column 3011, the operating platform 302, the vibrating device 303, the motor support 3031, the vibrating motor 3032, the universal joint 30331, the damping spring 30332, the second lifting mechanism 30333, the second sand core clamping mechanism 304, the sand cleaning device 40, the sand blowing mechanism 401, the pneumatic distributor 4011, the sand suction mechanism 402, the sand suction pump 4021, the sand suction air pipe 4022, the control device 50, the horizontal linear displacement sensor 501, the first lifting displacement sensor 502, the second lifting displacement sensor 503, the first angular displacement sensor 504, A second angular displacement sensor 505, a first pressure sensor 506, a second pressure sensor 507, and a controller 508.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a cleaning device for be used for 3D to print psammitolite which characterized in that: the sand core conveying device is positioned on one side of the workbench, the conveying end of the sand core conveying device, which is adjacent to the workbench, is the conveying end of the sand core conveying device, the sand core is transferred to the workbench by using the conveying end of the sand core conveying device, the sand core cleaning device is arranged on the workbench to clean sand grains in a cavity of the sand core, the control device is electrically connected with the sand core conveying device, the workbench and the sand grain cleaning device to control the operation of the sand core conveying device, the workbench and the sand grain cleaning device, the sand grain cleaning device comprises a sand blowing mechanism and a sand suction mechanism, the sand blowing mechanism and the sand suction mechanism are arranged on the workbench, an air outlet of the sand blowing mechanism is communicated with an air inlet of the cavity of the sand core on the workbench to blow high-pressure air into the cavity, and an air inlet of the sand suction mechanism is communicated with an air hole at the bottom of the cavity of the sand core, the sand blowing mechanism is matched with the sand sucking mechanism to discharge sand in the cavity, the sand blowing mechanism comprises a high-pressure gas tank, a pneumatic distributor and a sand blowing gas pipe, the high-pressure gas tank is communicated with a gas inlet of the pneumatic distributor, a gas outlet of the pneumatic distributor is communicated with a gas inlet of the sand core through the sand blowing gas pipe to send high-pressure gas into the cavity so as to clean the sand in the cavity, the sand sucking mechanism comprises a sand sucking pump, a sand sucking gas pipe and a sand collecting tank, a gas inlet of the sand sucking pump is communicated with a gas hole in the bottom of the cavity of the sand core through the sand sucking gas pipe, and the sand collecting tank is communicated with a gas outlet of the sand sucking pump so as to suck the sand in the cavity into the sand collecting tank; the working table comprises a support frame, an operating platform, a vibrating device and a second sand core clamping mechanism, wherein the support frame is provided with at least three supporting columns, the operating platform is fixedly connected with the supporting columns, the vibrating device is positioned below the operating platform, the vibrating end of the vibrating device is fixedly connected with the operating platform so as to drive the operating platform to vibrate, and the second sand core clamping mechanism is arranged on the operating platform so as to clamp and fix a sand core; the vibrating device comprises a motor support and a vibrating motor, the edge of the motor support is fixedly connected with the support column, the vibrating motor is arranged on the motor support, and the vibrating end of the vibrating motor is fixedly connected with the operating platform to provide vibration for the operating platform.
2. The cleaning apparatus for a 3D printing core of claim 1, wherein: the sand core transfer device comprises a fixed base, a first lifting mechanism and a first sand core clamping mechanism, wherein a first driving motor is arranged at the upper end of the fixed base, a rotating shaft of the first driving motor is vertically upwards, the rotating shaft of the first driving motor is connected with the first lifting mechanism so that the first lifting mechanism rotates in the horizontal direction, the first lifting mechanism comprises a rotating table, an upright guide rail, a bearing frame and a second driving mechanism, the bottom of the rotating table is fixedly connected with the rotating shaft of the first driving motor, the upper end of the rotating table is fixedly connected with the upright guide rail, the bearing frame is sleeved on the upright guide rail, the second driving mechanism is connected with the bearing frame so as to drive the bearing frame to move up and down along the upright guide rail, and the first sand core clamping mechanism is fixedly connected with the bearing frame so that the first sand core clamping mechanism and the bearing frame move synchronously.
3. The cleaning apparatus for a 3D printing core of claim 2, wherein: the second driving mechanism comprises a second driving motor and a screw rod, the second driving motor is arranged at the top of the upright guide rail, a rotating shaft of the second driving motor is connected with the screw rod to drive the screw rod to rotate, the direction of the screw rod is the same as the motion direction of the bearing frame, and the bearing frame is provided with an internal thread hole matched with the external thread of the screw rod to enable the bearing frame to move on the upright guide rail by rotating the screw rod.
4. The cleaning apparatus for a 3D printing core of claim 2, wherein: first psammitolite fixture includes third driving motor, backup pad, first solid fixed splint, first movable clamp plate, first splint actuating mechanism, third driving motor's fuselage and platform truck fixed connection, third driving motor's pivot horizontal direction is rotatory, just pivot and backup pad fixed connection to drive the backup pad and rotate, first solid fixed splint and first movable clamp plate are located the both sides of backup pad respectively and just right mutually, first solid fixed splint and backup pad fixed connection, and first splint actuating mechanism is connected with first movable clamp plate, removes with driving first movable clamp plate, thereby adjusts the distance of first solid fixed splint and first movable clamp plate.
5. The cleaning apparatus for a 3D printing core of claim 2, wherein: the fixed base is provided with a horizontal guide rail, an extension line of the horizontal guide rail passes through the workbench, the horizontal guide rail is provided with a movable trolley, and the first lifting mechanism is arranged on the movable trolley so that the movable trolley drives the first lifting mechanism to move in the horizontal direction to adjust the distance between the first lifting mechanism and the workbench.
6. The cleaning apparatus for a 3D printing core of claim 1, wherein: the vibrating device further comprises an angle adjusting mechanism, the angle adjusting mechanism is used for adjusting the inclination and the inclination direction of the operating platform and comprises universal joints, damping springs and a second lifting mechanism, the number of the universal joints is the same as that of the supporting columns, the upper ends of the universal joints are fixedly connected with the operating platform, the lower ends of the universal joints are fixedly connected with the upper ends of the damping springs so as to adjust the direction and the angle of the operating platform, the lower ends of the damping mechanisms are fixedly connected with the second lifting mechanism to prevent the operating platform from driving the second lifting mechanism to vibrate, the second lifting mechanism is further fixedly connected with the motor support, the second lifting mechanism is arranged on the supporting columns, the structure of the second lifting mechanism is the same as that of the first lifting mechanism, and the operating platform is inclined at a preset angle and direction by adjusting the telescopic amount of the second lifting mechanism on different supporting columns.
7. The cleaning apparatus for a 3D printing core as claimed in any one of claims 1 to 6, wherein: the control device comprises a horizontal linear displacement sensor, a first lifting displacement sensor, a second lifting displacement sensor, a first angular displacement sensor, a second angular displacement sensor, a first pressure sensor, a second pressure sensor and a controller, wherein the horizontal linear displacement sensor, the first lifting displacement sensor, the second lifting displacement sensor, the first angular displacement sensor, the second angular displacement sensor, the first pressure sensor and the second pressure sensor are electrically connected with the controller, the horizontal linear displacement sensor is arranged on a horizontal guide rail of a fixed base to control the displacement of the movable trolley, the first lifting displacement sensor is arranged on an upright guide rail to control the lifting of the bearing frame, the second lifting displacement sensor is arranged on a support column to control the lifting of the second lifting mechanism, and the first angular displacement sensor is arranged on a first driving motor, the sand core clamping mechanism comprises a first lifting mechanism, a second lifting mechanism, a third driving motor, a second angular displacement sensor, a first pressure sensor, a second pressure sensor and a second pressure sensor, wherein the first lifting mechanism is arranged on the third driving motor to control the horizontal rotating angle of the first lifting mechanism, the second angular displacement sensor is arranged on the third driving motor to control the rotating angle of the first sand core clamping mechanism, the first pressure sensor is arranged on the inner side of the first fixed clamp plate to detect the pressure of the first fixed clamp plate and the first movable clamp plate for clamping the sand core, and the second pressure sensor is arranged on the.
8. The working method for cleaning sand grains by using the cleaning device for the 3D printing sand core as claimed in any one of the claims 2 to 7 is characterized in that: the method comprises the following steps:
step S001: adjusting the height and the angle of the first sand core clamping mechanism to clamp the sand core;
step S002: the first lifting mechanism moves to a preset position along a horizontal guide rail on the fixed base;
step S003: rotating the first lifting mechanism and adjusting the height and the angle of the first sand core clamping mechanism again to enable the sand core to be placed on the operating platform in a preset direction;
step S004: loosening the first sand core clamping mechanism and adjusting the height of the first sand core clamping mechanism to enable the first sand core clamping mechanism to be separated from the working area, and enabling the second sand core clamping mechanism to clamp the sand core;
step S005: adjusting the heights of the second lifting mechanisms on different support columns to enable the sand core to be placed on the operation platform at a preset inclination angle and an inclination direction;
step S006: and starting the sand blowing mechanism, the sand sucking mechanism and the vibration device to clean sand grains in the cavity of the sand core until the sand grains are completely cleaned, and finishing the work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810667108.4A CN108817326B (en) | 2018-06-27 | 2018-06-27 | Cleaning device for 3D printing sand core and working method thereof |
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| CN201810667108.4A CN108817326B (en) | 2018-06-27 | 2018-06-27 | Cleaning device for 3D printing sand core and working method thereof |
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| CN108817326B true CN108817326B (en) | 2020-06-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108262447B (en) * | 2018-03-14 | 2024-04-19 | 共享智能装备(安徽)有限公司 | Integrated clean-up equipment of whole core surplus sand of 3D printing |
| CN109848374B (en) * | 2019-01-17 | 2024-04-23 | 贵州航天风华精密设备有限公司 | Resin sand core 3D printing device based on double-circle rotation control |
| CN110369396A (en) * | 2019-06-28 | 2019-10-25 | 共享智能铸造产业创新中心有限公司 | Suspension type sand core automatic wind cleaning device |
| CN110355768B (en) * | 2019-07-30 | 2020-07-31 | 南京涵曦月自动化科技有限公司 | Work robot is clear away in structure detection in complicated narrow cabin |
| EP4017706A4 (en) * | 2020-01-29 | 2023-05-24 | Hewlett-Packard Development Company, L.P. | 3d printing cleaning modules |
| CN115625302A (en) * | 2022-11-28 | 2023-01-20 | 优铸科技(北京)有限公司 | Sand cleaning device and sand cleaning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4160650A (en) * | 1978-04-20 | 1979-07-10 | Nfe International, Ltd. | Sand core cleaning apparatus with double roller delivery of cleaning material |
| CN105750270B (en) * | 2015-06-29 | 2017-05-24 | 宁夏共享模具有限公司 | System for removing and recovering loose sand in working box of 3D (three-dimensional) printing equipment |
| CN106041002B (en) * | 2016-07-19 | 2017-12-19 | 宁夏共享模具有限公司 | A kind of 3D printing sand removal equipment |
| CN106424581B (en) * | 2016-10-27 | 2018-07-24 | 宁夏共享模具有限公司 | The sand removal structure of 3D printing sand core |
| CN206578260U (en) * | 2017-01-21 | 2017-10-24 | 宣城创玺铸造有限公司 | A kind of casting and molding fettling installation |
| CN107520409B (en) * | 2017-07-31 | 2019-01-08 | 共享智能装备有限公司 | A kind of method for cleaning of the extra sand material of Integral sand in-core chamber of 3D printing |
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Effective date of registration: 20211125 Address after: 298, ningshuo South Street, Yinchuan economic and Technological Development Zone, Ningxia Hui Autonomous Region Patentee after: KOCEL INTELLIGENT EQUIPMENT Co.,Ltd. Address before: 750021 science and technology building and office building of small and medium sized enterprise entrepreneurial base in economic and Technological Development Zone, 330 Huanghe Road, Xixia District, Yinchuan City, Ningxia Hui Autonomous Region Patentee before: NATIONAL INTELLIGENT FOUNDRY INDUSTRY INNOVATION CENTER |
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