A rapid drying device for foundry sand used in mechanical casting

Abstract

The present invention discloses a rapid drying device for foundry sand used in mechanical casting, which belongs to the technical field of foundry sand drying equipment, and comprises a drying box, both sides of which are provided with air drying components, the drying box is rotatably connected with a rotating cylinder, and a spoiler component and a cleaning component are respectively provided in the rotating cylinder. In the present invention, the self-rotation of the spoiler plate and the revolution of the spoiler plate drive the foundry sand to be disturbed and dispersed, thereby reducing the aggregation and adhesion of the foundry sand, and when the dry gas enters the rotating cylinder, the dry gas will be disturbed and dispersed by the spoiler plate and form a vortex, which can allow the dry gas to fully fill the rotating cylinder, and allow the dry gas to fully contact with the dispersed foundry sand, thereby increasing the contact area between the foundry sand particles and the dry gas, and at the same time, the vortex formed by the dry gas can quickly drive the moisture on the surface of the foundry sand through its own rapid flow, thereby improving the drying effect of the foundry sand and improving the drying efficiency of the foundry sand.

Description

Technical Field

[0001] The invention belongs to the technical field of foundry sand drying equipment, and in particular relates to a foundry sand rapid drying device for mechanical casting. Background Art

[0002] Foundry sand, also known as foundry sand, is a type of sand used in the casting process. Its main component is usually silicate minerals. Foundry sand is used to make casting models or cores. In order to ensure that the foundry sand obtains better melting and flow properties during the casting process, the moisture in the foundry sand needs to be removed.

[0003] The invention with Chinese patent application number CN202010703978.X discloses a progressive rapid drying device for foundry sand based on iron parts, including a feeding structure; the feeding structure is installed at the rear end of a heating structure, and the discharging structure is arranged at the front end of the heating structure; a cooling structure is arranged at the top of the discharging structure; the feeding structure includes a feeding trough, a supporting column, and a discharging trough, the feeding trough is directly installed at the top end of a supporting plate, four vertical supporting columns are fixed on the supporting plate, a mounting plate is fixed on the top end of the four supporting columns, the bottom of the front end of the feeding trough is a discharging trough, and the bottom of the feeding trough An inclined surface is provided for sliding toward the discharge chute. The foundry sand entering the feed chute is generally in a state of agglomeration, and it is necessary to break up the foundry sand in the feed chute. The feed chute is directly installed in the mounting slide slot so that the feed chute can slide. At the same time, the deflection wheel at the bottom of the feed chute can drive the feed chute to shake when it rotates, thereby achieving the effect of breaking up the agglomerated foundry sand under the shaking of the feed chute. However, in the actual drying process, the foundry sand containing water is easy to stick together to form agglomerates, making it difficult for the drying gas to fully contact with the foundry sand, thereby affecting the drying effect of the foundry sand. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that foundry sand containing moisture is easy to stick together to form agglomerates, making it difficult for drying gas to fully contact with the foundry sand, thereby affecting the drying effect of the foundry sand, and to propose a foundry sand rapid drying device for mechanical casting.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A rapid drying device for foundry sand for mechanical casting, comprising a drying box, air drying components are arranged on both sides of the drying box, the drying box is rotatably connected to a rotating cylinder, a spoiler component and a cleaning component are arranged in the rotating cylinder, and a plurality of through holes are opened on the outer surface of the rotating cylinder;

[0007] The spoiler assembly includes a rotating disk, which is rotatably connected to a rotating cylinder. A plurality of freely rotatable spoiler plates are distributed in a circular array on the top of the rotating disk. A rotating shaft is connected to the top of the spoiler plate, and one end of the plurality of rotating shafts is rotatably connected to the same connecting ring. The free rotation of the plurality of spoiler plates and the rotation of the rotating disk can fully bring the foundry sand in the rotating cylinder into contact with the air-drying gas, thereby improving the drying efficiency of the foundry sand.

[0008] As a further description of the above technical solution:

[0009] A first mounting bracket is connected to the bottom of the rotating cylinder, and a rotating motor is fixedly installed on the top of the first mounting bracket, one end of the rotating motor output shaft is connected to a driving shaft, and the end of the driving shaft away from the rotating motor extends into the rotating cylinder and is connected to the bottom of the rotating disk, the bottom of the rotating disk fits with the bottom of the inner wall of the rotating cylinder, the cross-sectional shape of the through hole is a trapezoid that increases from the inside to the outside, and the cross-sectional shape of the spoiler is an S-shape.

[0010] As a further description of the above technical solution:

[0011] A fixed gear ring is fixedly connected to the top of the inner wall of the rotating cylinder, and a linkage gear is connected to the outer surface of the rotating shaft, and the linkage gear is meshed and connected with the fixed gear ring.

[0012] As a further description of the above technical solution:

[0013] The cleaning assembly includes two reciprocating screws, connecting seats are connected to both sides of the rotating disk, one end of the reciprocating screw is rotatably connected to the connecting seat, the outer surface of the reciprocating screw is threadedly connected to a screw seat, and a lifting ring is connected between the two screw seats, and a plurality of cleaning brushes and flexible hammer belts are connected to the outer peripheral side of the lifting ring, one side of the cleaning brush is in contact with the inner wall of the rotating cylinder, and the flexible hammer belt is in contact with the inner wall of the rotating cylinder in a stretched state, and the plurality of cleaning brushes and the flexible hammer belts are distributed on the outer peripheral side of the lifting ring in an equiangular circular array along the axis of the lifting ring.

[0014] As a further description of the above technical solution:

[0015] The end of the reciprocating screw away from the connecting seat is rotatably connected with a sliding block, the bottom of the fixed gear ring is provided with a rotating groove, the cross-section of the rotating groove is annular, and the sliding block is slidably connected in the rotating groove.

[0016] As a further description of the above technical solution:

[0017] The end of the reciprocating screw away from the sliding block extends to the other side of the connecting seat and is connected to a driving gear. The inner wall of the rotating cylinder is connected to a connecting gear ring. The bottom of the connecting gear ring is in contact with the bottom of the inner wall of the rotating cylinder. The driving gear is meshed and connected with the connecting gear ring.

[0018] As a further description of the above technical solution:

[0019] The air-drying component includes a bellows, which is connected to the outer peripheral side of the drying box. A plurality of ventilation pipes are distributed in a linear array on one side of the bellows, and the ventilation pipes are connected to the bellows. One end of the ventilation pipe away from the bellows extends to the interior of the drying box and is connected to a nozzle that can swing up and down. Mounting seats are hinged on both sides of the nozzle, one end of the mounting seat is connected to one side of the inner wall of the drying box, and a connecting rod is hinged between two adjacent nozzles.

[0020] As a further description of the above technical solution:

[0021] A connecting rod is hinged on one side of the nozzle, a sliding rod is hinged on the end of the connecting rod away from the nozzle, an end of the sliding rod away from the connecting rod is connected to an extrusion wheel, a fixing ring is connected to the outer surface of the rotating cylinder, an extrusion block is connected to the bottom of the fixing ring, the cross-section of the extrusion block is trapezoidal, and a plurality of extrusion blocks are distributed in an equiangular circular array along the axis of the fixing ring, and the extrusion block periodically fits with the extrusion wheel during rotation.

[0022] As a further description of the above technical solution:

[0023] The outer surface of the sliding rod is slidably connected with a fixed sliding sleeve, one end of the fixed sliding sleeve is connected to one side of the inner wall of the rotating cylinder, and the outer surface of the sliding rod is sleeved with a return spring, and the two ends of the return spring are respectively connected to one side of the fixed sliding sleeve and one side of the extrusion wheel.

[0024] As a further description of the above technical solution:

[0025] Fixed frames are fixedly installed on both sides of the drying box, and a control panel is connected to the top of one of the fixed frames, a second mounting frame is fixedly installed on the top of the control panel, and a driving motor is fixedly installed on the bottom of the second mounting frame, one end of the output shaft of the driving motor is connected to a transmission gear, a rotating gear plate is connected to the outer surface of the rotating cylinder, one side of the transmission gear is meshed with the rotating gear plate, a feed pipe is connected to the top of the rotating cylinder, and discharge pipes are connected to both sides of the bottom of the rotating cylinder, and a control valve is provided on one side of the discharge pipe, and a plurality of water filter holes are opened at the bottom of the drying box.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In the present invention, by setting a spoiler component, the driving motor drives the rotating drum to rotate at a high speed through the transmission gear and the rotating toothed disk, and the centrifugal force of the rotating drum is used to cooperate with the through hole to dehydrate the foundry sand, so as to reduce the water content in the foundry sand as soon as possible and improve the drying speed of the foundry sand. At the same time, the rotating motor drives the linkage gear to revolve on the fixed gear ring through the rotating disk and the spoiler, so that the linkage gear rotates under the drive of the fixed gear ring, and the linkage gear drives the spoiler to rotate. The rotation of the spoiler cooperates with the revolution of the spoiler to drive the foundry sand to be disturbed and dispersed, thereby reducing the aggregation and adhesion of the foundry sand. When the dry gas enters the rotating drum, the dry gas will be disturbed and dispersed by the spoiler and form a vortex, so that the dry gas can fully fill the rotating drum, and the dry gas can fully contact with the dispersed foundry sand, thereby increasing the contact area between the foundry sand particles and the dry gas. At the same time, the vortex formed by the dry gas can quickly drive the moisture on the surface of the foundry sand through its own rapid flow, thereby improving the drying effect of the foundry sand and improving the drying efficiency of the foundry sand.

[0028] 2. In the present invention, by setting up an air-drying component, the bellows sprays the dry gas into the drying box through the ventilation pipe and the nozzle, and the dry gas enters the rotating box through the through hole. At the same time, the rotating cylinder drives the extrusion block to rotate through the fixed ring, and the extrusion block cooperates with the reset spring to drive the extrusion wheel to reciprocate. The extrusion wheel drives multiple nozzles to swing back and forth through the sliding rod, the connecting rod and the linkage rod, which can periodically change the injection angle of the dry gas. In conjunction with the self-rotation of the rotating cylinder, the efficiency of the dry gas entering the rotating cylinder can be improved, thereby improving the drying efficiency of the foundry sand.

[0029] 3. In the present invention, by setting a cleaning component, the rotating disk drives the driving gear to rotate and revolve on the connecting gear ring through the connecting seat, so that the driving gear rotates, and the driving gear drives the lifting ring to reciprocate through the reciprocating screw and the screw seat. The lifting ring drives the flexible hammer belt to rotate and straighten and knock and vibrate the inner wall of the rotating cylinder. At the same time, the lifting ring drives the cleaning brush to rotate and lift. The vibration and knocking of the flexible hammer belt cooperate with the cleaning of the inner wall by the cleaning brush, so as to realize the cleaning of the inner wall of the rotating cylinder and the inside of the through hole. On the one hand, it can realize self-cleaning of the inner wall of the rotating cylinder, reduce the adhesion of casting sand, and improve the sand discharge rate. On the other hand, it can dredge the through hole to avoid clogging of the through hole affecting the entry of drying gas and the discharge of water in the casting sand, thereby improving the drying efficiency of the casting sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a rapid drying device for mechanical casting of foundry sand proposed by the present invention;

[0031] Figure 2 A schematic diagram of the three-dimensional structure of a rapid drying device for mechanical casting of foundry sand proposed by the present invention from another perspective;

[0032] Figure 3 A schematic diagram of the three-dimensional structure of an air-drying component of a rapid drying device for mechanical casting of foundry sand proposed by the present invention;

[0033] Figure 4 A rapid drying device for mechanical casting of foundry sand proposed by the present invention Figure 3 The enlarged structural diagram of part A in the middle;

[0034] Figure 5 A schematic diagram of the three-dimensional cross-sectional structure of a rotating drum of a rapid drying device for mechanical casting of foundry sand proposed by the present invention;

[0035] Figure 6 A rapid drying device for mechanical casting of foundry sand proposed by the present invention Figure 5 The enlarged structural diagram of part B in the middle;

[0036] Figure 7 A schematic diagram of the three-dimensional structure of a spoiler assembly of a rapid drying device for mechanical casting of foundry sand proposed by the present invention;

[0037] Figure 8 The present invention is a schematic diagram of the three-dimensional structure of a cleaning component of a rapid drying device for foundry sand for mechanical casting proposed by the present invention.

[0038] Legend:

[0039] 1. Fixed frame; 2. Control panel; 3. Feed pipe; 4. Rotating drum; 5. Drying box; 6. Air drying assembly; 601. Bellows; 602. Fixed ring; 603. Ventilation pipe; 604. Mounting seat; 605. Linking rod; 606. Spray pipe; 607. Extrusion wheel; 608. Return spring; 609. Fixed sleeve; 610. Sliding rod; 611. Connecting rod; 612. Extrusion block; 7. Spoiler assembly; 701. Rotating motor; 702. Connecting ring; 70 3. spoiler; 704. rotating disk; 705. linkage gear; 706. fixed gear ring; 8. cleaning assembly; 801. flexible hammer belt; 802. screw seat; 803. reciprocating screw; 804. connecting seat; 805. lifting ring; 806. rotating groove; 807. driving gear; 808. sliding block; 809. connecting gear ring; 810. cleaning brush; 9. through hole; 10. rotating gear disk; 11. driving motor; 12. transmission gear; 13. discharge pipe. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 8 , the present invention provides a technical solution:

[0042] A rapid drying device for foundry sand for mechanical casting comprises a drying box 5, both sides of which are provided with air drying components 6, the drying box 5 is rotatably connected to a rotating drum 4, a spoiler component 7 and a cleaning component 8 are respectively provided in the rotating drum 4, a plurality of through holes 9 are provided on the outer surface of the rotating drum 4, fixed frames 1 are fixedly installed on both sides of the drying box 5, and a control panel 2 is connected to the top of one of the fixed frames 1, a second mounting frame is fixedly installed on the top of the control panel 2, and a driving motor 11 is fixedly installed on the bottom of the second mounting frame, one end of the output shaft of the driving motor 11 is connected to a transmission gear 12, a rotating toothed disc 10 is connected to the outer surface of the rotating drum 4, one side of the transmission gear 12 is meshedly connected to the rotating toothed disc 10, a feeding pipe 3 is connected to the top of the rotating drum 4, both sides of the bottom of the rotating drum 4 are connected to a discharge pipe 13, and a control valve is provided on one side of the discharge pipe 13, and a plurality of water filtering holes are provided at the bottom of the drying box 5.

[0043] The spoiler assembly 7 includes a rotating disk 704, which is rotatably connected to the rotating cylinder 4. A plurality of spoiler plates 703 that can rotate freely are arranged in a circumferential array on the top of the rotating disk 704. A rotating shaft is connected to the top of the spoiler plates 703, and one end of the plurality of rotating shafts is rotatably connected to the same connecting ring 702. The free rotation of the plurality of spoiler plates 703 and the rotation of the rotating disk 704 enable the foundry sand in the rotating cylinder 4 to fully contact with the air-drying gas, thereby improving the drying efficiency of the foundry sand. A first mounting frame is connected to the bottom of the rotating cylinder 4, and the top of the first mounting frame is A rotating motor 701 is fixedly installed, one end of the output shaft of the rotating motor 701 is connected to a driving shaft, and the end of the driving shaft away from the rotating motor 701 extends into the rotating cylinder 4 and is connected to the bottom of the rotating disk 704, the bottom of the rotating disk 704 is in contact with the bottom of the inner wall of the rotating cylinder 4, the cross-sectional shape of the through hole 9 is a trapezoid that increases from the inside to the outside, the cross-sectional shape of the spoiler 703 is S-shaped, a fixed gear ring 706 is fixedly connected to the top of the inner wall of the rotating cylinder 4, and a linkage gear 705 is connected to the outer surface of the rotating shaft, and the linkage gear 705 is meshingly connected to the fixed gear ring 706.

[0044] The specific implementation method is as follows: by setting the spoiler component 7, the driving motor 11 drives the rotating drum 4 to rotate at a high speed through the transmission gear 12 and the rotating toothed disk 10, and the centrifugal force of the rotating drum 4 is used to cooperate with the through hole 9 to dehydrate the foundry sand, so as to reduce the water content in the foundry sand as soon as possible and improve the drying speed of the foundry sand. At the same time, the rotating motor 701 drives the linkage gear 705 to revolve on the fixed gear ring 706 through the rotating disk 704 and the spoiler 703, so that the linkage gear 705 rotates under the drive of the fixed gear ring 706, and the linkage gear 705 drives the spoiler 703 to rotate. The rotation of the spoiler 703 cooperates with the revolution of the spoiler 703 to drive the foundry sand to be disturbed and dispersed, thereby reducing the aggregation and adhesion of the foundry sand. When the dry gas enters the rotating drum 4, the dry gas will be disturbed and dispersed by the spoiler 703 and form a vortex, so that the dry gas can fully fill the rotating drum 4, and the dry gas can fully contact with the dispersed foundry sand, thereby increasing the contact area between the foundry sand particles and the dry gas.

[0045] The cleaning assembly 8 includes two reciprocating screws 803, and connecting seats 804 are connected to both sides of the rotating disk 704. One end of the reciprocating screw 803 is rotatably connected to the connecting seat 804. The outer surface of the reciprocating screw 803 is threadedly connected to a screw seat 802, and a lifting ring 805 is connected between the two screw seats 802. A plurality of cleaning brushes 810 and a flexible hammer belt 801 are connected to the outer peripheral side of the lifting ring 805. One side of the cleaning brush 810 is in contact with the inner wall of the rotating cylinder 4, and the flexible hammer belt 801 is in contact with the inner wall of the rotating cylinder 4 in a stretched state, and the plurality of cleaning brushes 810 and the flexible hammer belt 801 are at equal angles along the axis of the lifting ring 805. The circular array is distributed on the outer peripheral side of the lifting ring 805, and the end of the reciprocating screw 803 away from the connecting seat 804 is rotatably connected to the sliding block 808. A rotating groove 806 is opened at the bottom of the fixed gear ring 706, and the cross-sectional shape of the rotating groove 806 is annular. The sliding block 808 is slidably connected in the rotating groove 806. The end of the reciprocating screw 803 away from the sliding block 808 extends to the other side of the connecting seat 804 and is connected to the driving gear 807. The inner wall of the rotating cylinder 4 is connected to the connecting gear ring 809, and the bottom of the connecting gear ring 809 is in contact with the bottom of the inner wall of the rotating cylinder 4, and the driving gear 807 is meshed and connected with the connecting gear ring 809.

[0046] The specific implementation method is as follows: by setting up the cleaning component 8, the rotating disk 704 drives the driving gear 807 to rotate and revolve on the connecting gear ring 809 through the connecting seat 804, so that the driving gear 807 rotates, and the driving gear 807 drives the lifting ring 805 to move back and forth through the reciprocating screw 803 and the screw seat 802. The lifting ring 805 drives the flexible hammer belt 801 to rotate and straighten and knock and vibrate the inner wall of the rotating cylinder 4. At the same time, the lifting ring 805 drives the cleaning brush 810 to rotate and lift. The vibration and knocking of the flexible hammer belt 801 cooperate with the cleaning of the inner wall by the cleaning brush 810, so as to realize the cleaning of the inner wall of the rotating cylinder 4 and the inside of the through hole 9.

[0047] The air drying component 6 includes a bellows 601, which is connected to the outer peripheral side of the drying box 5. A plurality of ventilation pipes 603 are distributed in a linear array on one side of the bellows 601. The ventilation pipes 603 are connected to the bellows 601. One end of the ventilation pipe 603 away from the bellows 601 extends to the inside of the drying box 5 and is connected to a nozzle 606 that can swing up and down. Both sides of the nozzle 606 are hinged with mounting seats 604. One end of the mounting seat 604 is connected to one side of the inner wall of the drying box 5. A connecting rod 605 is hinged between two adjacent nozzles 606. A connecting rod 611 is hinged on one side of the nozzle 606. A sliding rod 610 is hinged on the end of the connecting rod 611 away from the nozzle 606. The sliding rod 610 is far away from the nozzle 606. One end of the connecting rod 611 is connected to the extrusion wheel 607, the outer surface of the rotating cylinder 4 is connected to the fixing ring 602, the bottom of the fixing ring 602 is connected to the extrusion block 612, the cross-sectional shape of the extrusion block 612 is trapezoidal, and multiple extrusion blocks 612 are distributed in an equiangular circular array along the axis of the fixing ring 602. The extrusion blocks 612 periodically fit with the extrusion wheel 607 during rotation. The outer surface of the sliding rod 610 is slidably connected to the fixed sleeve 609, one end of the fixed sleeve 609 is connected to one side of the inner wall of the rotating cylinder 4, and the outer surface of the sliding rod 610 is sleeved with a reset spring 608, and the two ends of the reset spring 608 are respectively connected to one side of the fixed sleeve 609 and one side of the extrusion wheel 607.

[0048] The specific implementation method is as follows: by setting up the air-drying component 6, the bellows 601 sprays the dry gas into the drying box 5 through the ventilation pipe 603 and the nozzle 606, and the dry gas enters the rotating box through the through hole 9. At the same time, the rotating cylinder 4 drives the extrusion block 612 to rotate through the fixed ring 602, and the extrusion block 612 cooperates with the reset spring 608 to drive the extrusion wheel 607 to reciprocate. The extrusion wheel 607 drives the multiple nozzles 606 to swing back and forth through the sliding rod 610, the connecting rod 611 and the connecting rod 605, which can periodically change the injection angle of the dry gas. In conjunction with the self-rotation of the rotating cylinder 4, the efficiency of the dry gas entering the rotating cylinder 4 can be improved.

[0049] Working principle: When in use, the staff transports the foundry sand into the rotating drum 4 through the feed pipe 3. After that, the staff starts the rotating motor 701 and the driving motor 11 by operating the control panel 2. The rotation directions of the output shafts of the rotating motor 701 and the driving motor 11 are opposite. The driving motor 11 drives the transmission gear 12 to rotate, and the transmission gear 12 drives the rotating gear plate 10 to rotate. The rotating gear plate 10 drives the rotating drum 4 to rotate at a high speed. The rotating drum 4 drives the internal foundry sand to rotate and centrifugally dehydrates the foundry sand to quickly remove the moisture inside the foundry sand. The separated moisture flows out through the water filter hole at the bottom of the drying box 5.

[0050] At the same time, the bellows 601 conveys the dry gas to the nozzle 606 through the ventilation pipe 603, and the dry gas is sprayed into the drying box 5 through the nozzle 606 and enters the rotating box through the through hole 9. In this process, the rotating cylinder 4 drives the fixed ring 602 to rotate, the fixed ring 602 drives the extrusion block 612 to rotate, the extrusion block 612 drives the extrusion wheel 607 to move, and when the extrusion wheel 607 is separated from the extrusion block 612, the extrusion wheel 607 is driven by the reset spring 608 to reset, and the extrusion wheel 607 drives the sliding rod 610 to reset, so that the sliding rod 610 reciprocates, the sliding rod 610 drives the connecting rod 611 to move, the connecting rod 611 drives the nozzle 606 to swing back and forth, and the nozzle 606 drives the remaining nozzles 606 to swing back and forth through the connecting rod 605, so as to spray the rotating cylinder 4 at multiple angles.

[0051] After the drying gas enters the rotating cylinder 4 through the through hole 9, the rotating motor 701 drives the rotating disk 704 to rotate. The rotating disk 704 rotates in the opposite direction to the rotating cylinder 4. The rotating disk 704 drives multiple spoilers 703 to revolve. The spoilers 703 drive the linkage gears 705 to revolve on the fixed gear ring 706, so that the linkage gears 705 rotate under the drive of the fixed gear ring 706. The linkage gears 705 drive the spoilers 703 to rotate, so that the spoilers 703 drive the foundry sand and the drying gas to disperse the disturbance, thereby accelerating the drying of the foundry sand.

[0052] The rotating disk 704 drives the connecting seat 804 to rotate, and the connecting seat 804 drives the driving gear 807 to rotate and revolve on the connecting gear ring 809, so that the driving gear 807 rotates under the drive of the connecting gear ring 809, and the driving gear 807 drives the reciprocating screw 803 to rotate, and the reciprocating screw 803 drives the screw seat 802 to reciprocate in the vertical direction, and the screw seat 802 drives the lifting ring 805 to reciprocate, and the lifting ring 805 drives the flexible hammer belt 801 to rotate and straighten and knock and vibrate the inner wall of the rotating cylinder 4, and vibrates and discharges the blocked through hole 9 casting sand. At the same time, the lifting ring 805 drives the cleaning brush 810 to rotate and lift, and cleans the casting sand attached to the inner wall of the rotating cylinder 4. The flexible hammer belt 801 and the cleaning brush 810 cooperate with each other to clean the inner wall of the rotating cylinder 4. After the drying of the casting sand is completed, the staff turns off the driving motor 11 and the rotating motor 701 through the control panel 2, and the staff opens the control valve to allow the casting sand to be discharged through the discharge pipe 13.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rapid drying device for foundry sand for mechanical casting, comprising a drying box (5), characterized in that: Air drying components (6) are provided on both sides of the drying box (5); the drying box (5) is rotatably connected to a rotating drum (4); a spoiler component (7) and a cleaning component (8) are respectively provided in the rotating drum (4); and a plurality of through holes (9) are provided on the outer surface of the rotating drum (4); The air-drying component (6) comprises a bellows (601), wherein the bellows (601) is connected to the outer peripheral side of the drying box (5), and a plurality of ventilation pipes (603) are distributed in a linear array on one side of the bellows (601), wherein the ventilation pipes (603) are connected to the bellows (601), and one end of the ventilation pipe (603) away from the bellows (601) extends into the interior of the drying box (5) and is connected to a nozzle (606) that can swing up and down, wherein mounting seats (604) are hingedly connected on both sides of the nozzle (606), and one end of the mounting seat (604) is connected to one side of the inner wall of the drying box (5), and a connecting rod (605) is hingedly connected between two adjacent nozzles (606), and a connecting rod (611) is hingedly connected to one side of the nozzle (606), and a sliding rod (610) is hingedly connected to the end of the connecting rod (611) away from the nozzle (606), and the sliding rod One end of (610) away from the connecting rod (611) is connected to an extrusion wheel (607), the outer surface of the rotating cylinder (4) is connected to a fixed ring (602), the bottom of the fixed ring (602) is connected to an extrusion block (612), the cross-section of the extrusion block (612) is trapezoidal, and a plurality of extrusion blocks (612) are distributed in an equiangular circular array along the axis of the fixed ring (602), and the extrusion blocks (612) periodically fit with the extrusion wheel (607) during rotation, the outer surface of the sliding rod (610) is slidably connected to a fixed sleeve (609), one end of the fixed sleeve (609) is connected to one side of the inner wall of the rotating cylinder (4), and the outer surface of the sliding rod (610) is sleeved with a return spring (608), and the two ends of the return spring (608) are respectively connected to one side of the fixed sleeve (609) and one side of the extrusion wheel (607); The spoiler assembly (7) comprises a rotating disk (704), the rotating disk (704) being rotatably connected to the inside of the rotating cylinder (4), a plurality of spoiler plates (703) being distributed in a circular array on the top of the rotating disk (704) and being capable of freely rotating, a rotating shaft being connected to the top of the spoiler plates (703), and a plurality of rotating shafts being rotatably connected to the same connecting ring (702) at one end, and the free rotation of the plurality of spoiler plates (703) in coordination with the rotation of the rotating disk (704) can enable the foundry sand in the rotating cylinder (4) to fully contact with the air-drying gas, thereby improving the drying efficiency of the foundry sand.

2. The rapid drying device for mechanical casting of foundry sand according to claim 1, characterized in that: The bottom of the rotating cylinder (4) is connected to a first mounting frame, and a rotating motor (701) is fixedly mounted on the top of the first mounting frame; one end of the output shaft of the rotating motor (701) is connected to a driving shaft, and one end of the driving shaft away from the rotating motor (701) extends into the rotating cylinder (4) and is connected to the bottom of the rotating disk (704); the bottom of the rotating disk (704) is in contact with the bottom of the inner wall of the rotating cylinder (4); the cross-sectional shape of the through hole (9) is a trapezoid that increases from the inside to the outside; and the cross-sectional shape of the spoiler (703) is an S-shape.

3. A rapid drying device for foundry sand for mechanical casting according to claim 2, characterized in that: A fixed gear ring (706) is fixedly connected to the top of the inner wall of the rotating cylinder (4), and a linkage gear (705) is connected to the outer surface of the rotating shaft, and the linkage gear (705) is meshingly connected to the fixed gear ring (706).

4. A rapid drying device for foundry sand for mechanical casting according to claim 3, characterized in that: The cleaning assembly (8) comprises two reciprocating screws (803), both sides of the rotating disk (704) are connected to connecting seats (804), one end of the reciprocating screw (803) is rotatably connected to the connecting seat (804), the outer surface of the reciprocating screw (803) is threadedly connected to a screw seat (802), and a lifting ring (805) is connected between the two screw seats (802), and a plurality of cleaning brushes (810) and a flexible hammer belt (801) are connected to the outer peripheral side of the lifting ring (805), one side of the cleaning brush (810) is in contact with the inner wall of the rotating cylinder (4), and the flexible hammer belt (801) is in contact with the inner wall of the rotating cylinder (4) in a stretched state, and the plurality of cleaning brushes (810) and the flexible hammer belt (801) are distributed on the outer peripheral side of the lifting ring (805) in an equiangular circular array along the axis of the lifting ring (805).

5. The rapid drying device for mechanical casting of foundry sand according to claim 4, characterized in that: One end of the reciprocating screw (803) away from the connecting seat (804) is rotatably connected to a sliding block (808); a rotating groove (806) is provided at the bottom of the fixed gear ring (706); the rotating groove (806) has a ring-shaped cross-section, and the sliding block (808) is slidably connected in the rotating groove (806).

6. A rapid drying device for foundry sand for mechanical casting according to claim 5, characterized in that: One end of the reciprocating screw (803) away from the sliding block (808) extends to the other side of the connecting seat (804) and is connected to a driving gear (807); the inner wall of the rotating cylinder (4) is connected to a connecting gear ring (809); the bottom of the connecting gear ring (809) is in contact with the bottom of the inner wall of the rotating cylinder (4); and the driving gear (807) is meshedly connected with the connecting gear ring (809).

7. The rapid drying device for foundry sand for mechanical casting according to claim 6, characterized in that: The drying box (5) is fixedly mounted with a fixing frame (1) on both sides, and a control panel (2) is connected to the top of one of the fixing frames (1), a second fixing frame is fixedly mounted on the top of the control panel (2), and a driving motor (11) is fixedly mounted on the bottom of the second fixing frame, one end of the output shaft of the driving motor (11) is connected to a transmission gear (12), the outer surface of the rotating cylinder (4) is connected to a rotating toothed disc (10), one side of the transmission gear (12) is meshedly connected to the rotating toothed disc (10), the top of the rotating cylinder (4) is connected to a feed pipe (3), both sides of the bottom of the rotating cylinder (4) are connected to a discharge pipe (13), and a control valve is provided on one side of the discharge pipe (13), and a plurality of water filter holes are provided at the bottom of the drying box (5).

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