Aluminum condensing exchanger casting sand mold crushing equipment

Abstract

The present invention discloses a sand mold crushing device for aluminum condensing exchanger castings, which relates to the field of sand mold processing and includes an upper frame and a lower frame, a crushing box installed between the upper frame and the lower frame, and a sand mold installed above the lower frame. The top of the upper frame is connected to a transport mechanism, which moves the sand mold. A movable plate is installed inside the crushing box, and a buffer mechanism is connected between the movable plate and the crushing box. Multiple groups of crushing nozzles are installed at the bottom end of the movable plate of the crushing box, and a vibration mechanism is installed on the inner wall of the crushing box above the movable plate. The present invention, through the crushing box and the vibration mechanism, can crush the sand mold while squeezing an air bag through the movable plate, so that the gas in the air bag is ejected through the crushing nozzle, and the air flow is sprayed toward the sand mold and the top of the casting, cleaning the sand particles attached to the top of the casting, thereby improving the cleaning effect of the casting.

Description

Technical Field

[0001] The invention relates to the field of sand mold processing, in particular to a sand mold crushing device for aluminum condensing exchanger castings. Background Art

[0002] Generally, heat exchangers that recycle the latent heat of vaporization of water vapor in flue gas are defined as condensing heat exchangers. During the production process, most of its components usually need to be cast. Casting is to inject the smelted liquid metal into a pre-prepared mold by pouring, injection, suction or other casting methods. After cooling, it is polished and other subsequent processing methods to obtain an object with a certain shape, size and performance. When castings are produced, it is usually necessary to use a sand mold as a casting mold to facilitate the removal of the casting. The sand mold is crushed to remove the casting. The existing sand mold crushing usually adopts a breaker hammer, splint and other structures to crush the sand mold and separate the sand particles from the casting to facilitate subsequent processing operations.

[0003] However, in the existing sand mold casting process, the structure of the casting is relatively complex, especially the heat exchange plate in the condenser and other components. Due to its complex structure, bending and groove positions, it is easy for sand particles to remain in it during the casting process, which requires further cleaning, otherwise it will affect subsequent processing. Secondly, in the process of crushing the sand mold, a fixed impact force and moving distance are usually used to impact the sand mold, but usually one impact cannot completely crush the sand mold, and usually multiple impacts are required to break the sand mold. However, during the impact, due to the fixed stroke of the impact plate, it is easy to cause overload of the impact equipment during the initial few impacts, resulting in damage to the equipment. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide an aluminum condensing exchanger casting sand mold crushing device to solve the technical problems that the casting is inconvenient to clean and the initial impact easily causes equipment overload.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an aluminum condensing exchanger casting sand mold crushing device, comprising an upper frame and a lower frame, a crushing box is installed between the upper frame and the lower frame, and a sand mold is installed above the lower frame, the top of the upper frame is connected to a transport mechanism, the transport mechanism moves the sand mold, a movable plate is installed inside the crushing box, a buffer mechanism is connected between the movable plate and the crushing box, a plurality of crushing nozzles are installed at the bottom end of the movable plate of the crushing box, a vibration mechanism is installed on the inner wall of the crushing box above the movable plate, and the vibration mechanism is used to move the sand mold. The mechanism includes a vibration motor, an output shaft is symmetrically installed at the output end of the vibration motor, a limit ring is installed on the outside of the output shaft, and the side of the limit ring is connected to a movable rod and an extrusion plate. When the output shaft drives the extrusion plate to rotate, the extrusion plate pushes the movable plate to move, and the movable rod is movably connected to the limit ring. An electric connection mechanism is installed at the end of the output shaft, and the electric connection mechanism includes a movable plate and a electric connection ring. The vibration mechanism is connected to an external power supply through the electric connection mechanism. The electric connection ring is connected to a threaded transmission connection opened on the outside of the output shaft. A resistor is installed inside the output shaft, and the movable plate is connected to the resistor.

[0006] By adopting the above technical solution, the sand mold can be conveniently crushed, and the current connected to the first electromagnet through the power connection mechanism can change the extrusion force of the extrusion plate on the movable plate, gradually increase the crushing force of the movable plate on the sand mold, reduce equipment overload, and improve utilization efficiency.

[0007] The present invention is further configured such that a first cylinder is installed at the top of the upper frame, the first cylinder drives the crushing box to move up and down, a loading plate is installed at the top of the lower frame, a moving mechanism and a movable block are connected on both sides of the loading plate, the moving mechanism includes a moving motor and a screw, the movable block is sleeved on the outside of the screw, and the moving mechanism drives the loading plate to move above the lower frame.

[0008] By adopting the above technical solution, the carrier plate can be easily driven to move, thereby facilitating the transportation of the sand mold and making it convenient for the crushing box to be sleeved on the outside of the sand mold.

[0009] The present invention is further configured such that a screen is installed inside the carrier plate, the screen is movably connected to the carrier plate, a second cylinder is connected to both sides of the carrier plate, the screen is movably connected inside the carrier plate through the second cylinder, the sand mold is placed above the screen, an inclined plate is provided below the screen, and the inclined plate is fixed inside the lower frame.

[0010] By adopting the above technical solution, the crushed sand particles can be easily filtered and crushed through the screen, and the sand particles can be collected through the inclined plate.

[0011] The present invention is further configured such that crushing heads are installed on both sides of the inner wall of the crushing box, the second cylinder drives the screen to vibrate left and right, the screen drives the sand mold to vibrate inside the crushing box, and the vibrating sand mold is crushed by the crushing head.

[0012] By adopting the above technical solution, it is convenient to crush the edge of the sand mold through the crushing head.

[0013] The present invention is further configured such that a plurality of groups of crushing nozzles are installed inside the movable plate, and an air pipe is opened inside each group of crushing nozzles, an air bag is installed on the inner wall of the movable plate, the crushing nozzles extend into the interior of the air bag, the top end of the air bag is fitted with the interior of the crushing box, and a plurality of groups of one-way air valves are installed inside the top end of the crushing box located inside the air bag, the one-way air valves extend to the outside of the crushing box, the top end of the movable plate is connected to a first spring, and the movable plate is movably connected to the crushing box through the first spring.

[0014] By adopting the above technical solution, the movement of the movable plate can be easily buffered by the airbag, and at the same time, the airflow in the airbag is ejected through the crushing nozzle, thereby cleaning the sand particles on the top of the sand mold.

[0015] The present invention is further configured such that a return spring is connected to the side of the movable plate, and a fixed plate is installed on the outside of the output shaft. The movable plate is movably connected to the output shaft through the return spring. A power connection groove is opened on the inner wall of the movable plate. A plug rod is installed on the end of the power connection ring. The power connection ring is connected to the power connection groove through the plug rod. A conductive rod is also connected to the end of the power connection ring. The conductive rod extends to the outside of the crushing box and is connected to the external power supply.

[0016] By adopting the above technical solution, it is convenient to connect the movable plate through the power connection ring, so as to supply power to the movable plate.

[0017] The present invention is further configured such that an electrical connector is provided on the inner wall of the movable plate, a resistor is installed inside the output shaft, the movable plate is connected to the resistor through the electrical connector, and a sliding groove matching the electrical connector is provided on the outer wall of the resistor located inside the output shaft. When the movable plate is away from the fixed plate, the position where the electrical connector is connected to the resistor is the maximum value of the resistance.

[0018] By adopting the above technical solution, it is convenient to power the vibration mechanism, and by moving the power ring, the power connection position between the movable plate and the resistor is changed, thereby changing the current connected to the vibration mechanism.

[0019] The present invention is further configured such that two groups of first electromagnets are installed inside each group of the limiting rings, and each group of first electromagnets is aligned with the movable rod, a magnet matching the first electromagnet is installed at the end of the movable rod, a second spring is connected between the movable rod and the first electromagnet, a guide rod is installed inside the output shaft, and the output shaft is connected to the resistor through the guide rod.

[0020] By adopting the above technical solution, multiple groups of first electromagnets can be powered conveniently.

[0021] The present invention is further configured such that a second electromagnet is installed inside the fixed plate, and a switch is connected to the inner end of the slide groove outside the resistor. When the movable plate and the resistor are connected to the minimum resistance value, the electrical head contacts the switch, and the power supply of the second electromagnet is turned on to adsorb and fix the movable plate.

[0022] By adopting the above technical solution, it is convenient to limit the movable plate through the second electromagnet, reduce the extrusion of the connecting electric ring, and thus reduce the wear between the connecting electric ring and the thread.

[0023] In summary, the present invention mainly has the following beneficial effects:

[0024] 1. The present invention is equipped with a crushing box and a vibration mechanism, which can crush the sand mold while squeezing the air bag through the movable plate, so that the gas in the air bag is ejected through the crushing nozzle. The air flow is sprayed toward the sand mold and the top of the casting, cleaning the sand particles attached to the top of the casting, thereby improving the cleaning effect of the casting.

[0025] 2. The present invention provides a crushing box and a vibration mechanism, which can gradually change the magnetic force of the first electromagnet on the extrusion plate by changing the current connected to the vibration mechanism during the crushing process of the casting, gradually increase the pushing force of the extrusion plate on the movable plate, and gradually increase the extrusion force of the movable plate. As a result, the extrusion and crushing force of the crushing nozzle on the sand mold can also be gradually increased during the initial crushing process, thereby reducing the overload of the equipment during crushing, improving the crushing efficiency, and reducing equipment damage.

[0026] 3. The present invention also has a vibration mechanism, which can squeeze the switch through the electrical head after the resistance connected to the vibration mechanism changes to the minimum value, so that the second electromagnet can be operated to adsorb and fix the movable plate, thereby reducing the friction between the electrical ring and the thread, thereby reducing wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the crushing box of the present invention;

[0029] Figure 3 It is a schematic structural diagram of the vibration mechanism of the present invention;

[0030] Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0031] Figure 5 It is a schematic diagram of the movable plate, fixed plate and return spring structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the cross-sectional structure of the power connection ring of the present invention;

[0033] Figure 7 This is a schematic diagram of the motor structure when the crushing box of the present invention is vibrating;

[0034] Figure 8 Schematic diagram of the cross-sectional structure of the air bag and the crushing nozzle of the present invention;

[0035] Figure 9 It is a schematic diagram of the lower frame structure of the present invention.

[0036] Figure: 1. Upper frame; 101. First cylinder; 2. Lower frame; 201. Loading plate; 202. Moving mechanism; 203. Second cylinder; 204. Screen; 205. Inclined plate; 206. Movable block; 3. Crushing box; 301. One-way air valve; 302. Air bag; 303. Movable plate; 304. Crushing head; 305. Crushing nozzle; 306. First spring; 4. Vibrating mechanism; 401. Vibrating motor; 402 , output shaft; 403, limit ring; 404, movable rod; 405, extrusion plate; 406, fixed plate; 407, return spring; 408, movable plate; 409, resistor; 410, thread; 411, guide rod; 412, first electromagnet; 413, second spring; 414, electrical connector; 415, switch; 416, second electromagnet; 417, electrical slot; 5, electrical ring; 501, conductive rod; 502, plug rod. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0038] The following describes an embodiment of the present invention based on its overall structure.

[0039] A sand mold crushing device for aluminum condensing exchanger castings, as shown in the figure, includes an upper frame 1 and a lower frame 2, a crushing box 3 is installed between the upper frame 1 and the lower frame 2, and a sand mold is installed above the lower frame 2, a first cylinder 101 is installed on the top of the upper frame 1, the first cylinder 101 drives the crushing box 3 to move up and down, a loading plate 201 is installed on the top of the lower frame 2, a moving mechanism 202 and a movable block 206 are connected on both sides of the loading plate 201, the moving mechanism 202 includes a moving motor and a screw, the movable block 206 is sleeved on the outside of the screw, the moving mechanism 202 drives the loading plate 201 to move above the lower frame 2, a movable plate 303 is installed inside the crushing box 3, a plurality of crushing nozzles 305 are installed inside the movable plate 303, and an air pipe is opened inside each group of crushing nozzles 305, an air bag 302 is installed on the inner wall of the movable plate 303, the crushing nozzle 305 extends to the inside of the air bag 302, and the air bag The top of the movable plate 303 fits with the interior of the crushing box 3, and the top of the crushing box 3 is located inside the airbag 302 and multiple sets of one-way air valves 301 are installed. The one-way air valve 301 extends to the outside of the crushing box 3. The top of the movable plate 303 is connected to the first spring 306, and the movable plate 303 is movably connected to the crushing box 3 through the first spring 306. The bottom end of the movable plate 303 of the crushing box 3 is installed with multiple sets of crushing nozzles 305. When the movable plate 303 moves downward, it drives the airbag 302 to expand, and the outside air is sucked in through the one-way air valve 301. Then the output shaft 402 continues to rotate, the squeezing plate 405 separates from the movable plate 303, the first spring 306 pulls the movable plate 303 back, and the second spring 413 drives the squeezing plate 405 to return, so that the crushing nozzle 305 returns, the airbag 302 is squeezed, and the gas in the airbag 302 is ejected through the crushing nozzle 305, and the ejected airflow cleans the top of the sand mold.

[0040] The inner wall of the crushing box 3 is located above the movable plate 303 and is equipped with a vibration mechanism 4. The vibration mechanism 4 includes a vibration motor 401. The output end of the vibration motor 401 is symmetrically equipped with an output shaft 402. A limit ring 403 is installed on the outer side of the output shaft 402, and a movable rod 404 and an extrusion plate 405 are connected to the side of the limit ring 403. When the output shaft 402 drives the extrusion plate 405 to rotate, the extrusion plate 405 pushes the movable plate 303 to move, and the movable rod 404 is movably connected to the limit ring 403. When the vibration mechanism 4 is started, the vibration motor 401 of the vibration mechanism 4 drives the vibration motor 401 to rotate. The dynamic output shaft 402 rotates, and the output shaft 402 drives the multiple groups of limiting rings 403 on the outside to rotate. The limiting rings 403 drive the multiple groups of extrusion plates 405 to rotate, thereby pushing and extruding the movable plate 303 (the specifications of the extrusion plate 405 can be adjusted according to the crushed sand mold), so that the movable plate 303 moves downward. At this time, the first electromagnet 412 does not operate, and the extrusion plate 405 has no limit, so that the extrusion plate 405 pushes the movable rod 404 to move and squeeze the second spring 413. At this time, the movable plate 303 drives the crushing nozzle 305 to move downward and slightly collides with the sand mold.

[0041] The end of the output shaft 402 is equipped with a power connection mechanism, which includes a movable plate 408 and a power connection ring 5. The side of the movable plate 408 is connected to a return spring 407, and a fixed plate 406 is installed on the outside of the output shaft 402. The movable plate 408 is movably connected to the output shaft 402 through the return spring 407. The inner wall of the movable plate 408 is provided with a power connection groove 417. The end of the power connection ring 5 is equipped with a plug rod 502. The power connection ring 5 is connected to the power connection groove 417 through the plug rod 502. The end of the power connection ring 5 is also connected to a conductive rod 501. The conductive rod 501 It extends to the outside of the crushing box 3 and is connected to the external power supply. The power ring 5 is transmission-connected to the thread 410 provided on the outside of the output shaft 402. The output shaft 402 drives the power ring 5 to move at the end of the output shaft 402 through the thread 410 on the outside, so that the power ring 5 pushes the movable plate 408 to move outside the output shaft 402. The power ring 5 is connected to the power connection groove 417 on the inner wall of the movable plate 408 through the insertion rod 502, so that the movable plate 408 is connected to the external power supply, and the current is connected to the resistor 409 through the power connection head 414 on the inner wall of the movable plate 408.

[0042] The inner wall of the movable plate 408 is provided with an electric head 414, and the output shaft 402 is internally installed with a resistor 409. The movable plate 408 is connected to the resistor 409 through the electric head 414, and the outer wall of the resistor 409 is located in the output shaft 402 and has a sliding groove that matches the electric head 414. When the movable plate 408 is away from the fixed plate 406, the position where the electric head 414 is connected to the resistor 409 is the maximum resistance. Two groups of first electromagnets 412 are installed inside each group of limit rings 403, and each group of first electromagnets 412 are aligned with the movable rod 404. A magnet matching the first electromagnet 412 is installed at the end of the movable rod 404. The movable rod 404 and the first electromagnet 412 are aligned with each other. 12 is connected with a second spring 413, and a guide rod 411 is installed inside the output shaft 402. The output shaft 402 is connected to the resistor 409 through the guide rod 411. The electric ring 5 moves with the thread 410, reducing the resistance connected to the circuit, and the current gradually increases, thereby increasing the magnetic force of the first electromagnet 412, so that the thrust on the extrusion plate 405 is also increasing, thereby gradually increasing the crushing force and distance of the movable plate 303 and the crushing nozzle 305 on the sand mold, and increasing the crushing force on the sand mold in turn, achieving uniform crushing of the sand mold. When the movable plate 408 is pushed to the extreme position, the resistance value reaches the minimum, and at this time the thread 410 is separated from the electric ring 5.

[0043] See also Figure 2 and Figure 9A screen 204 is installed inside the carrier plate 201, and the screen 204 is movably connected to the carrier plate 201. Second cylinders 203 are connected to both sides of the carrier plate 201. The screen 204 is movably connected inside the carrier plate 201 through the second cylinder 203. The sand mold is placed above the screen 204, and an inclined plate 205 is provided below the screen 204. The inclined plate 205 is fixed inside the lower frame 2, which can facilitate the vibration of the sand mold and screen and crush the crushed sand particles.

[0044] See also Figure 2 and Figure 7 Crushing heads 304 are installed on both sides of the inner wall of the crushing box 3. The second cylinder 203 drives the screen 204 to vibrate left and right. The screen 204 drives the sand mold to vibrate inside the crushing box 3. The vibrating sand mold is crushed by the crushing head 304, so that the sand mold can contact the crushing head in the crushing box, thereby crushing the sand mold.

[0045] See also Figure 5 A second electromagnet 416 is installed inside the fixed plate 406, and a switch 415 is connected to the inner end of the slide groove outside the resistor 409. When the movable plate 408 and the resistor 409 are connected to the minimum resistance, the electrical connector 414 contacts the switch 415, and the power of the second electromagnet 416 is turned on to adsorb and fix the movable plate 408. When the movable plate 408 is pushed to the extreme position, the resistance value reaches the minimum, and at this time the thread 410 is separated from the connecting ring 5, and the electrical connector 414 squeezes the switch 415, starting the second electromagnet 416, and the second electromagnet 416 adsorbs the movable plate 408, so that the movable plate 408 will not push the connecting ring 5 through the return spring 407 at this time, reducing the wear between the connecting ring 5 and the thread 410.

[0046] After the sand mold is cooled, it needs to be crushed. At this time, the sand mold is moved to the loading plate 201 in the lower frame 2 through an external transmission mechanism, so that the sand mold is placed on the screen 204, and the motor in the moving mechanism 202 is started. The motor drives the screw to rotate, and the screw drives the loading plate 201 to move through the movable block 206, thereby driving the sand mold to move to the bottom of the crushing box 3, and starting the first cylinder 101. The first cylinder 101 pushes the crushing box 3 to move downward, so that the crushing box 3 is sleeved on the outside of the sand mold, so that the bottom end of the crushing box 3 fits with the loading plate 201, and multiple groups of second cylinders 203 are started. The second cylinders 203 drive the screen 204 to shake, thereby driving the shaking of the sand mold, so that the edge of the sand mold collides with the crushing head 304, and the side of the sand mold is crushed. When the vibration mechanism 4 is started, the vibration motor 401 of the vibration mechanism 4 drives the output shaft 402 to rotate, and the output shaft 402 drives the multiple groups of limit rings 403 on the outside to rotate, and the limit rings 403 drive the multiple groups of extrusion plates 405 to rotate, thereby pushing and squeezing the movable plate 303 (the specifications of the extrusion plate 405 can be adjusted according to the crushed sand mold), so that the movable plate 303 moves downward. At this time, the first electromagnet 412 does not operate, and the extrusion plate 405 has no limit, so that the extrusion plate 405 pushes the movable rod 404 to move and squeeze the second spring 413. At this time, the movable plate 303 drives the crushing nozzle 305 to move downward and slightly collide with the sand mold, partially crushing the sand mold, and at this time drives the airbag 302 to open, and the outside air passes through the one-way air valve 30 1 is sucked in, and then the output shaft 402 continues to rotate, the extrusion plate 405 separates from the movable plate 303, the first spring 306 pulls the movable plate 303 back, and the second spring 413 drives the extrusion plate 405 to return, so that the crushing nozzle 305 returns, and the air bag 302 is squeezed, so that the gas in the air bag 302 is ejected through the crushing nozzle 305, and the ejected air flow cleans the top of the sand mold, reduces the accumulation of sand particles on the top of the sand mold, and cleans the top of the casting. At the same time, the output shaft 402 drives the power ring 5 to move at the end of the output shaft 402 through the outer thread 410, so that the power ring 5 pushes the movable plate 408 to move outside the output shaft 402, and the power ring 5 is connected to the power groove 417 on the inner wall of the movable plate 408 through the plug rod 502. , so that the movable plate 408 is connected to the external power supply, and the current is connected to the resistor 409 through the electrical connector 414 on the inner wall of the movable plate 408. At this time, the electrical connector 414 is located at the position where the resistance of the resistor 409 is the largest in the circuit. When the input voltage remains unchanged, the current value is the smallest. The input current will be transmitted to each group of first electromagnets 412 through the guide rod 411, so that the first electromagnet 412 is operated, pushing the magnet at the end of the movable rod 404, pushing the extrusion plate 405 to move outward. At this time, the output shaft 402 continues to drive the extrusion plate 405 to rotate and contact the movable plate 303, pushing the movable plate 303 downward again to break the sand mold. At this time, the extrusion force of the movable plate 303 increases (the increase is the same as the magnetic force of the first electromagnet).In order to further improve the crushing effect, the cycle is carried out in sequence. When the output shaft 402 rotates, the electric ring 5 moves with the thread 410, reducing the resistance connected to the circuit, and the current gradually increases, thereby increasing the magnetic force of the first electromagnet 412, so that the thrust on the extrusion plate 405 is also increasing, thereby gradually increasing the crushing force and distance of the movable plate 303 and the crushing nozzle 305 on the sand mold, and sequentially increasing the crushing force on the sand mold, achieving uniform crushing of the sand mold. When the movable plate 408 is pushed to the extreme position, the resistance value reaches the minimum, and at this time the thread 410 and the electric ring 5 are connected. The electric ring 5 is separated, and the electric head 414 squeezes the switch 415 to start the second electromagnet 416. The second electromagnet 416 attracts the movable plate 408, so that the movable plate 408 will not push the electric ring 5 through the return spring 407 at this time, reducing the wear between the electric ring 5 and the thread 410. The operation continues, gradually crushing the top of the sand mold, and the air flow ejected by the airbag 302 cleans the sand at the top of the sand mold, improving the cleaning effect. The crushed sand will fall onto the inclined plate 205 through the screen 204, and the sand will be recovered by the diversion of the inclined plate 205;

[0047] After the sand mold is crushed, the external power supply to the multiple sets of electromagnets is first cut off. At this time, under the action of the return spring 407, the movable plate 408 and the electric ring 5 are pushed to move, so that the electric ring 5 is squeezed and contacted with the thread 410, and the vibration motor 401 is started in the reverse direction. The output shaft 402 drives the electric ring 5 to return through the thread 410. The movable plate 408 returns under the action of the return spring 407. At this time, the extrusion plate 405 continues to push the movable plate 303 under the drive of the output shaft 402 (and at this time, the magnetic force of the first electromagnet 412 gradually decreases, so that the movement distance of the movable plate 303 is reduced to avoid collision with the casting), so that the movable plate 303 repeatedly squeezes the gas in the airbag 302, so that the air flow is ejected through the crushing nozzle 305 to clean the impurities attached to the casting;

[0048] Then the first cylinder 101 is started to return, so that the crushing box 3 is separated from the carrier plate 201, and the moving mechanism 202 is started to move the carrier plate 201, and the casting is moved to the outside of the lower frame 2. After the casting is taken out, a new sand mold is placed and crushing is continued.

[0049] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A sand mold crushing device for aluminum condensing exchanger castings, comprising an upper frame (1) and a lower frame (2), a crushing box (3) being installed between the upper frame (1) and the lower frame (2), and a sand mold being installed above the lower frame (2), characterized in that: The top of the upper frame (1) is connected to a transport mechanism, which moves the sand mold. A movable plate (303) is installed inside the crushing box (3), and a buffer mechanism is connected between the movable plate (303) and the crushing box (3). A plurality of crushing nozzles (305) are installed at the bottom end of the movable plate (303) of the crushing box (3). A vibration mechanism (4) is installed on the inner wall of the crushing box (3) above the movable plate (303). The vibration mechanism (4) includes a vibration motor (401). An output shaft (402) is symmetrically installed at the output end of the vibration motor (401). A limit ring (403) is installed on the outer side of the output shaft (402), and the limit ring (403) is provided with a plurality of crushing nozzles (305). ) is connected to the side of the output shaft (402) with a movable rod (404) and an extrusion plate (405). When the output shaft (402) drives the extrusion plate (405) to rotate, the extrusion plate (405) pushes the movable plate (303) to move, and the movable rod (404) is movably connected to the limit ring (403). The end of the output shaft (402) is equipped with a power connection mechanism, which includes a movable plate (408) and a power connection ring (5). The vibration mechanism (4) is connected to an external power supply through the power connection mechanism. The power connection ring (5) is in transmission connection with a thread (410) provided on the outside of the output shaft (402). A resistor (409) is installed inside the output shaft (402), and the movable plate (408) is connected to the resistor (409). The side of the movable plate (408) is connected to a return spring (407), and a fixed plate (406) is installed on the outside of the output shaft (402). The movable plate (408) is movably connected to the output shaft (402) via the return spring (407). The inner wall of the movable plate (408) is provided with a power connection slot (417). The end of the power connection ring (5) is installed with a plug rod (502). The power connection ring (5) is connected to the power connection slot (417) via the plug rod (502). The end of the power connection ring (5) is also connected to a conductive rod (501). The conductive rod (501) extends to the outside of the crushing box (3) and is connected to an external power supply. The inner wall of the movable plate (408) is provided with an electric connector (414), and a resistor (409) is installed inside the output shaft (402). The movable plate (408) is connected to the resistor (409) through the electric connector (414), and the outer wall of the resistor (409) is provided with a sliding groove matching the electric connector (414) inside the output shaft (402). When the movable plate (408) is away from the fixed plate (406), the position where the electric connector (414) and the resistor (409) are connected is the maximum value of the resistance. Two groups of first electromagnets (412) are installed inside each group of the limiting rings (403), and each group of the first electromagnets (412) is aligned with the movable rod (404). A magnet matching the first electromagnet (412) is installed at the end of the movable rod (404). A second spring (413) is connected between the movable rod (404) and the first electromagnet (412). A guide rod (411) is installed inside the output shaft (402), and the output shaft (402) is connected to the resistor (409) through the guide rod (411).

2. The aluminum condensing exchanger casting sand mold crushing device according to claim 1, characterized in that: A first cylinder (101) is installed at the top of the upper frame (1), and the first cylinder (101) drives the crushing box (3) to move up and down. A loading plate (201) is installed at the top of the lower frame (2), and a moving mechanism (202) and a movable block (206) are connected to both sides of the loading plate (201). The moving mechanism (202) includes a moving motor and a screw. The movable block (206) is sleeved on the outside of the screw. The moving mechanism (202) drives the loading plate (201) to move above the lower frame (2).

3. The aluminum condensing exchanger casting sand mold crushing device according to claim 2, characterized in that: A screen (204) is installed inside the carrier plate (201), and the screen (204) is movably connected to the carrier plate (201). Second cylinders (203) are connected to both sides of the carrier plate (201), and the screen (204) is movably connected inside the carrier plate (201) through the second cylinder (203). The sand mold is placed above the screen (204), and an inclined plate (205) is provided below the screen (204). The inclined plate (205) is fixed inside the lower frame (2).

4. The aluminum condensing exchanger casting sand mold crushing device according to claim 3, characterized in that: Crushing heads (304) are installed on both sides of the inner wall of the crushing box (3). The second cylinder (203) drives the screen (204) to vibrate left and right. The screen (204) drives the sand mold to vibrate inside the crushing box (3), and the vibrating sand mold is crushed by the crushing head (304).

5. The aluminum condensing exchanger casting sand mold crushing device according to claim 1, characterized in that: The movable plate (303) is internally installed with a plurality of crushing nozzles (305), and each group of crushing nozzles (305) is internally provided with an air pipe. An air bag (302) is installed on the inner wall of the movable plate (303), and the crushing nozzles (305) extend into the interior of the air bag (302). The top end of the air bag (302) is in contact with the interior of the crushing box (3), and the top end of the crushing box (3) is located inside the air bag (302). A plurality of one-way air valves (301) are installed, and the one-way air valves (301) extend to the outside of the crushing box (3). The top end of the movable plate (303) is connected to a first spring (306), and the movable plate (303) is movably connected to the crushing box (3) via the first spring (306).

6. The aluminum condensing exchanger casting sand mold crushing device according to claim 1, characterized in that: A second electromagnet (416) is installed inside the fixed plate (406), and a switch (415) is connected to the inner end of the slide groove outside the resistor (409). When the movable plate (408) and the resistor (409) are connected to the minimum resistance value, the electrical connector (414) contacts the switch (415), and the power supply of the second electromagnet (416) is turned on to adsorb and fix the movable plate (408).

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