Dip-coating and drying integrated device for sand casting loam core

Abstract

The invention relates to the technical field of sand core treatment, in particular to a sand casting mud core dip-coating and drying integrated device which comprises a driving part, the driving part comprises a rotating vertical shaft, three sets of driving arms extending in the radial direction are evenly distributed on the vertical shaft in the circumferential direction, and the driving part is driven by external force and forms a machining area on a horizontal projection plane. The processing area is divided into a material changing area, a dip-coating area and a drying area which are mutually bordered, the material changing area, the dip-coating area and the drying area respectively correspond to three driving arms, and the driving part is driven by an external force to intermittently rotate around the vertical shaft and enables the three driving arms to alternately circulate among the material changing area, the dip-coating area and the drying area. The lifting parts on the driving arms can be driven to circulate among the material changing area, the dip-coating area and the drying area through servo rotation of the driving parts, dip-coating and drying integration is achieved, meanwhile, the number of the driving arms corresponds to the number of divided areas of the machining area, and efficiency can be multiplied.

Description

Technical Field

[0001] The invention relates to the technical field of sand core processing, in particular to a sand casting mud core dipping, coating and drying integrated device. Background Art

[0002] Casting is an ancient metal forming process that manufactures parts by pouring molten metal into a pre-made mold and cooling and solidifying it. With the development of industrial technology, the casting process is also constantly improving, especially in the fields of automobiles, aerospace, machinery manufacturing, etc., the quality requirements for castings are getting higher and higher. Sand casting is one of the most commonly used casting methods. The core lies in the preparation of sand cores. The quality of sand cores directly affects the dimensional accuracy and surface quality of the final castings. Traditional sand core processing methods mainly include manual dipping and natural drying, or using simple drying equipment for drying. The dipping speed is slow and the drying is uneven. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a sand casting mud core dipping, coating and drying integrated device, and the specific technical scheme is as follows:

[0004] The sand casting mud core dipping and drying integrated device comprises a driving part, the driving part comprises a rotatably arranged vertical shaft, the vertical shaft is evenly arranged with three groups of radially extending driving arms around the circumference, the driving part is driven by an external force and forms a processing area on a horizontal projection plane, the processing area is divided into a material changing area, a dipping area and a drying area bordering each other, the material changing area, the dipping area and the drying area correspond to three driving arms respectively, the driving part is driven by an external force to intermittently rotate around the vertical shaft and make the three driving arms alternately circulate between the material changing area, the dipping area and the drying area;

[0005] At least one lifting part is arranged on the driving arm, a dipping device corresponding to the driving arm is arranged in the dipping area, and a drying device corresponding to the driving arm is arranged in the drying area.

[0006] As a further technical solution of the present invention, the lifting part includes a hydraulic push rod installed on the driving arm, the output end of the hydraulic push rod passes through the driving arm and is connected to a cover plate, a receiving box is connected to the bottom of the cover plate through a connecting cable, and the receiving box is a hollow structure.

[0007] As a further technical solution of the present invention, the dipping device includes a shell one, a carrying plate is slidably arranged in the vertical direction inside the shell one, an upper protrusion is connected to the bottom of the carrying plate, an output shaft is rotatably arranged at the bottom of the shell one, the top of the output shaft is connected to a lower protrusion that abuts against the upper protrusion, the end faces of the upper protrusion and the lower protrusion facing each other are arranged as inclined structures and coupled with each other, and the output shaft drives the lower protrusion to rotate and forces the carrying plate to vibrate in the vertical direction.

[0008] As a further technical solution of the present invention, in the installed state, the cover plate seals an opening of the housing, and the receiving box falls onto the carrying plate.

[0009] As a further technical solution of the present invention, a stirring blade is connected to the output shaft, and the supporting plate is a hollow structure.

[0010] As a further technical solution of the present invention, the drying device includes a shell body two, and a lower chamber, an air inlet, a downwind outlet, a side chamber and a side outlet are provided in the shell body two. The lower chamber is connected to an external air source through the air inlet, and the lower chamber is connected to the internal space of the shell body two through the downwind outlet. The side chamber is connected to the internal space of the shell body two through the side outlet. One end of the side chamber is connected to the lower chamber, and the other end of the side chamber extends upward to form an opening. An upper chamber and an upper outlet are provided in the cover plate. In the installed state, the cover plate covers the shell body two and connects the upper chamber with the side chamber.

[0011] As a further technical solution of the present invention, in the installed state, the containing box is suspended in the inner space of the second shell, and the output directions of the lower air outlet, the side air outlet and the upper air outlet are all toward the sand core.

[0012] As a further technical solution of the present invention, the side cavities are provided with multiple groups and are distributed around two circumferential directions of the shell, and multiple groups of side air outlets are arranged at intervals along the vertical direction on the side cavities.

[0013] The beneficial effects of the present invention are as follows:

[0014] (1) In the present application, the servo rotation of the driving part can drive the lifting part on the driving arm to cycle back and forth between the material changing area, the dipping area and the drying area, thereby realizing the integration of dipping and drying. At the same time, the number of driving arms corresponds to the number of areas where the processing area is divided, which can double the efficiency.

[0015] (2) In the present application, by setting up the dipping device, the sand core in the containing box can be vibrated in the vertical direction while being dipped, and relative movement can occur between the containing box and the sand core inside it, thereby avoiding the formation of a dead angle on the contact surface between the two and making the dipping more comprehensive.

[0016] (3) In the present application, by setting up the drying device, a sealed space for accommodating the sand core can be formed in cooperation with the lifting part during drying, and hot air can be used to dry the workpiece from three directions: bottom, top and side, to achieve comprehensive drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It shows a schematic diagram of the planar structure of a sand casting mud core dipping, coating and drying integrated device;

[0018] Figure 2It shows a three-dimensional structural schematic diagram of a sand casting mud core dipping, coating and drying integrated device;

[0019] Figure 3 A schematic diagram of the structure of the lifting part is shown;

[0020] Figure 4 A schematic diagram of the matching structure of the containing box and the dipping device is shown;

[0021] Figure 5 Shows Figure 4 Schematic diagram of the state structure;

[0022] Figure 6 A schematic diagram of the matching structure of the containing box and the drying device is shown.

[0023] Description of the drawings: 100, driving unit; 110, vertical axis; 120, driving arm; 200, processing area; 210, material changing area; 220, dipping area; 230, drying area; 300, lifting unit; 310, hydraulic push rod; 320, cover plate; 321, upper cavity; 322, upper air outlet; 330, connecting rope; 340, containing box; 400, dipping device; 410, shell one; 420, bearing plate; 430, upper protrusion; 440, output motor; 450, output shaft; 460, lower protrusion; 470, stirring blade; 500, drying device; 510, shell two; 520, lower cavity; 530, air inlet; 540, lower air outlet; 550, side cavity; 560, side air outlet. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0025] Figure 1 It shows a schematic diagram of the planar structure of a sand casting mud core dipping, coating and drying integrated device; Figure 2 It shows a three-dimensional structural schematic diagram of a sand casting mud core dipping, coating and drying integrated device; Figure 1 and Figure 2The sand casting mud core dipping and drying integrated device comprises a driving part 100, the driving part 100 comprises a rotatable vertical shaft 110, the vertical shaft 110 is evenly arranged with three groups of radially extending driving arms 120 around the circumference, the driving part 100 is driven by an external force and forms a processing area 200 on a horizontal projection plane, the processing area 200 is divided into a material changing area 210, a dipping area 220 and a drying area 230 which are adjacent to each other, the material changing area 210, the dipping area 220 and the drying area 230 correspond to the three driving arms 120 respectively, the driving part 100 is driven by an external force to intermittently rotate around the vertical shaft 110 and make the three driving arms 120 move in the material changing area 210, the dipping area 220 and the drying area 230 30 alternately cycles; in actual use, the bottom of the vertical shaft 110 can be connected to the output end of the motor, and the motor is used to drive the vertical shaft 110 to rotate as a whole, thereby driving the three driving arms 120 to rotate around the vertical shaft 110, and because the three driving arms 120 correspond to the material changing area 210, the dipping area 220 and the drying area 230 respectively, therefore, the above-mentioned motor can be a servo motor. When the servo motor is started, it can drive the vertical shaft 110 to rotate intermittently, that is, the servo motor drives the driving unit 100 to rotate the driving arm 120 degrees each time, so that after each rotation, the driving arm 120 can move forward a stroke in the rotation direction, that is, the material changing area 210 enters the dipping area 220. , the dipping area 220 enters the drying area 230, and the drying area 230 enters the material changing area 210, and one of the three is realized alternately. Since the material changing area 210, the dipping area 220 and the drying area 230 constitute a closed-loop processing area 200, the driving arm 120 rotates therein and circulates continuously; at least one lifting part 300 is arranged on the driving arm 120, a dipping device 400 is arranged in the dipping area 220, and a drying device 500 is arranged in the drying area 230, and the number of the dipping devices 400 and the number of the drying devices 500 correspond to the lifting part 300; the lifting part 300 moves continuously in the material changing area 210, the dipping area 220 and the drying area 2 The lifting part 300 is cyclically changed between the material changing area 210. When the lifting part 300 moves to the material changing area 210, a new sand core can be replaced and placed in the lifting part 300. Then, the lifting part 300 is rotated to the dipping area 220, and the sand core can be dipped by the dipping device 400. Then, the lifting part 300 is rotated to the drying area 230, and the dipped sand core is dried by the drying device 500. The driving part 100 continues to rotate, and the lifting part 300 returns to the material changing area 210, and the cycle is repeated. The setting of the three sets of driving arms 120 can make the material changing device in the material changing area 210, the dipping device 400 in the dipping area 220 and the drying device 500 in the drying area 230 work continuously, so as to double the working efficiency.

[0026] Figure 3 shows a schematic structural diagram of the lifting unit 300; Figure 3In the embodiment, the lifting part 300 includes a hydraulic push rod 310 installed on the driving arm 120, the output end of the hydraulic push rod 310 passes through the driving arm 120 and is connected to a cover plate 320, and a receiving box 340 is connected to the bottom of the cover plate 320 through a connecting rope 330, and the receiving box 340 is a hollow structure; the sand core is placed in the receiving box 340, so that the sand core and the lifting part 300 can be driven synchronously, and at the same time, the hydraulic push rod 310 can drive the receiving box 340 to rise and fall, so that the receiving box 340 can be lowered after rotation to cooperate with the dipping device 400 or the drying device 500; it should be noted that in this embodiment, the material changing area 210 is externally connected to a sand core feeding device, and when the lifting part 300 moves into the material changing area 210, the feeding device can realize automatic replacement of the sand core, or manually replace the sand core, which is not a limitation of the present application, nor is it to be protected by the present application.

[0027] Figure 4 A schematic diagram showing the matching structure of the containing box 340 and the dipping device 400 is shown; Figure 5 Shows Figure 4 Schematic diagram of the state structure; Figure 4 and Figure 5In the embodiment, the dipping device 400 includes a shell 410, a carrying plate 420 is slidably arranged in the shell 410 along the vertical direction, an upper protrusion 430 is connected to the bottom of the carrying plate 420, an output shaft 450 is rotatably arranged at the bottom of the shell 410, a lower protrusion 460 that abuts against the upper protrusion 430 is connected to the top of the output shaft 450, and the end surfaces of the upper protrusion 430 and the lower protrusion 460 facing each other are arranged in an inclined structure and coupled to each other, and the output shaft 450 drives the lower protrusion 460 to rotate and forces the carrying plate 420 to rotate along the vertical direction. Vibrate upward; in actual use, an output motor 440 is installed at the bottom of the shell 1 410, and the output end of the output motor 440 is connected to the output shaft 450, which can drive the output shaft 450 to rotate; since the end faces of the upper protrusion 430 and the lower protrusion 460 facing each other are set to an inclined structure and coupled with each other, when the two are coupled, the long side of the lower protrusion 460 is opposite to the short side of the upper protrusion 430, and the supporting plate 420 falls to the lowest point. As the lower protrusion 460 rotates, the long side of the lower protrusion 460 gradually protrudes upward The long side of the upper protrusion 430 rotates, thereby forcing the carrying plate 420 to gradually rise until it reaches the highest point, and as the lower protrusion 460 continues to rotate, the long side of the lower protrusion 460 gradually rotates toward the short side of the upper protrusion 430, and the carrying plate 420 gradually falls, and this reciprocating movement realizes the vibration of the carrying plate 420 in the vertical direction; in the installed state, the cover plate 320 covers the opening of the shell 410, and the receiving box 340 falls onto the carrying plate 420; therefore, the receiving box 340 will vibrate with the vibration of the carrying plate 420, such In this way, relative movement can be achieved between the containing box 340 and the sand core therein to avoid a dead angle between the contact surfaces of the two, and vibration dipping can be achieved, so that the dipping efficiency of complex sand cores is higher and the dipping is more comprehensive; a stirring blade 470 is connected to the output shaft 450, and the supporting plate 420 is a hollow structure; since the supporting plate 420 is a hollow structure, the coating liquid can fill the shell 410, and the stirring blade 470 stirs the coating liquid as the output shaft 450 rotates, ensuring that the dipping liquid in the shell 410 remains uniform.

[0028] Figure 6 A schematic diagram showing the matching structure of the containing box 340 and the drying device 500 is shown; Figure 6In the embodiment, the drying device 500 includes a second shell 510, in which a lower chamber 520, an air inlet 530, a lower air outlet 540, a side chamber 550 and a side air outlet 560 are provided. The lower chamber 520 is connected to an external air source through the air inlet 530, the lower chamber 520 is connected to the internal space of the second shell 510 through the lower air outlet 540, the side chamber 550 is connected to the internal space of the second shell 510 through the side air outlet 560, one end of the side chamber 550 is connected to the lower chamber 520, and the side chamber 550 is connected to the lower chamber 520. The other end extends upward to form an opening, and an upper chamber 321 and an upper air outlet 322 are provided in the cover plate 320. In the installed state, the cover plate 320 covers the second shell 510 and connects the upper chamber 321 with the side chamber 550. When the storage box 340 enters the second shell 510, the cover plate 320 covers the opening of the second shell 510 and forms a sealed space, so that the gas enters the lower chamber 520 from the air inlet 530, and then enters the side chamber 550 and the upper chamber 321 in turn. The hot air in the lower chamber 520 enters the internal space of the second shell 510 through the lower air outlet 540, the hot air in the side chamber 550 enters the internal space of the second shell 510 through the side air outlet 560, and the hot air in the upper chamber 321 enters the internal space of the second shell 510 through the upper air outlet 322. In this way, the hot air can be blown from three directions, from bottom to top, from top to bottom, and from the side, to dry the workpiece, thereby achieving comprehensive drying. In the installed state, the receiving box 340 is suspended in the internal space of the second shell 510, and the lower air outlet 540, The output directions of the side air vents 560 and the upper air vents 322 are both toward the sand core; this can ensure that the hot air blows directly onto the sand core to evenly spread the coating on the surface of the sand core; a plurality of side cavities 550 are provided and distributed circumferentially around the shell 2 510, and a plurality of groups of side air vents 560 are arranged at intervals along the vertical direction on the side cavities 550; a plurality of side cavities 550 are utilized to surround the sand core in the containing box 340 in the lateral direction, and the provision of a plurality of side air vents 560 can fully cover the internal space of the shell 2 510, thereby improving the drying efficiency.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. Sand casting mud core dipping, coating and drying integrated device, characterized in that: The invention comprises a driving part (100), wherein the driving part (100) comprises a rotatably arranged vertical shaft (110), wherein the vertical shaft (110) is evenly arranged with three groups of radially extending driving arms (120) around the circumference, wherein the driving part (100) is driven by an external force and forms a processing area (200) on a horizontal projection plane, wherein the processing area (200) is divided into a material changing area (210), a dipping area (220) and a drying area (230) which are adjacent to each other, wherein the material changing area (210), the dipping area (220) and the drying area (230) correspond to the three driving arms (120) respectively, and wherein the driving part (100) is driven by an external force to intermittently rotate around the vertical shaft (110) and causes the three driving arms (120) to alternately circulate between the material changing area (210), the dipping area (220) and the drying area (230); At least one lifting portion (300) is provided on the driving arm (120), a dipping device (400) corresponding to the driving arm (120) is provided in the dipping area (220), and a drying device (500) corresponding to the driving arm (120) is provided in the drying area (230).

2. The sand casting mud core dipping, coating and drying integrated device according to claim 1 is characterized in that: The lifting part (300) comprises a hydraulic push rod (310) mounted on the driving arm (120); the output end of the hydraulic push rod (310) passes through the driving arm (120) and is connected to a cover plate (320); a receiving box (340) is connected below the cover plate (320) via a connecting cable (330); and the receiving box (340) is a hollow structure.

3. The sand casting mud core dipping, coating and drying integrated device according to claim 2 is characterized in that: The dipping device (400) comprises a shell (410), a supporting plate (420) is slidably arranged in the vertical direction inside the shell (410), an upper protrusion (430) is connected to the bottom of the supporting plate (420), an output shaft (450) is rotatably arranged at the bottom of the shell (410), a lower protrusion (460) is connected to the top of the output shaft (450) and contacts the upper protrusion (430), the end surfaces of the upper protrusion (430) and the lower protrusion (460) facing each other are arranged as inclined structures and coupled with each other, and the output shaft (450) drives the lower protrusion (460) to rotate and forces the supporting plate (420) to vibrate in the vertical direction.

4. The sand casting mud core dipping, coating and drying integrated device according to claim 3 is characterized in that: In the installed state, the cover plate (320) covers an opening of the housing (410), and the receiving box (340) falls onto the carrying plate (420).

5. The sand casting mud core dipping, coating and drying integrated device according to claim 3 is characterized in that: The output shaft (450) is connected to a stirring blade (470), and the supporting plate (420) is a hollow structure.

6. The sand casting mud core dipping, coating and drying integrated device according to claim 5 is characterized in that: The drying device (500) comprises a second shell (510), wherein the second shell (510) is provided with a lower chamber (520), an air inlet (530), a lower air outlet (540), a side chamber (550) and a side air outlet (560), wherein the lower chamber (520) is connected to an external air source via the air inlet (530), the lower chamber (520) is connected to the internal space of the second shell (510) via the lower air outlet (540), and the side chamber (550) is connected to the external air source via the air inlet (530). The internal space of the second shell (510) is connected via the side air outlet (560), one end of the side cavity (550) is connected to the lower cavity (520), the other end of the side cavity (550) extends upward to form an opening, an upper cavity (321) and an upper air outlet (322) are provided in the cover plate (320), and in the installed state, the cover plate (320) covers the second shell (510) and connects the upper cavity (321) with the side cavity (550).

7. The integrated device for dipping, coating and drying sand casting mud cores according to claim 6, characterized in that: In the installed state, the containing box (340) is suspended in the internal space of the second shell (510), and the output directions of the lower air outlet (540), the side air outlet (560) and the upper air outlet (322) are all toward the sand core.

8. The sand casting mud core dipping, coating and drying integrated device according to claim 6, characterized in that: The side cavities (550) are provided with a plurality of groups and are distributed circumferentially around the second shell (510), and a plurality of groups of side air outlets (560) are arranged at intervals along the vertical direction on the side cavities (550).

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