A casting rapid demoulding device

Abstract

The present invention relates to the field of casting processing, and particularly to a casting rapid demoulding device, comprising a frame, a tray, a vibration mechanism and a vibration spring, wherein the tray and the frame are connected by the vibration spring, and the vibration spring causes the tray to suspend above the frame; a mounting plate is provided on the frame, and a first inclined slot is provided on the mounting plate, the vibration mechanism comprises a telescopic rod group and an oscillation component, the telescopic rod group comprises a sliding sleeve rod and a supporting inner rod connected in an up-and-down sliding manner, and the sliding sleeve rod is slidably mounted on the tray and the first inclined slot respectively; after the sand box is placed on the tray, the tray drives the sliding sleeve rod to slide forward along the first inclined slot under the action of gravity, until the vibration spring is squeezed to the limit by the gravity of the tray and the sand box; the oscillation component prevents the sliding sleeve rod from sliding in the opposite direction, and intermittently promotes the sliding sleeve rod to slide forward, so that the sliding sleeve rod drives the tray to vibrate back and forth under the joint action of the oscillation component and the vibration spring, promoting the casting to break contact with the molding sand, and reducing the adhesion of the casting to the molding sand during subsequent demoulding.

Description

Technical Field

[0001] The invention relates to the field of casting processing, and in particular to a casting rapid demoulding device. Background Art

[0002] Metal casting is a process in which liquid metal is transported into a mold and a casting is obtained after cooling and solidification. Common molding methods include sand casting and metal mold casting. Sand casting includes molding, casting, demoulding and other processes. In the demoulding process, the commonly used method is to destroy the mold by external force to remove the casting. Although this method is more efficient, the molding sand will damage the surface of the casting when destroying the mold. The casting can also be removed from the mold by ejection. For example, the Chinese invention patent with authorization announcement number CN112008068B discloses a metal casting demoulding and blanking equipment, which uses a blanking block to push the casting away from the mold shell. However, since some molding sand adheres to the surface of the casting, the casting cannot be removed in one go. During the reciprocating ejection process, the molding sand will still cause wear on the casting. Summary of the Invention

[0003] The invention provides a casting rapid demoulding device to solve the problem that when a casting is separated from the molding sand, the molding sand is easily adhered and affects the demoulding of the casting.

[0004] A casting rapid demoulding device of the present invention adopts the following technical solution:

[0005] A casting rapid demoulding device is used to separate the casting from the sand box, comprising a frame, a tray, a vibration mechanism and a vibration spring, the tray and the frame are connected by a vertically extending vibration spring, and the vibration spring causes the tray to suspend above the frame; the sand box is arranged on the tray; a vertically arranged mounting plate is provided on the frame, and a first inclined slot is provided on the mounting plate, the vibration mechanism comprises a telescopic rod group and an oscillation assembly, the telescopic rod group comprises a sliding sleeve rod and a supporting inner rod, the sliding sleeve rod and the supporting inner rod can be slidably connected up and down, and the supporting inner rod is located below the sliding sleeve rod, the supporting inner rod is slidably mounted on the frame along a first direction, one end of the sliding sleeve rod is slidably mounted on the tray along the first direction, and the other end is slidably mounted on the first inclined slot Groove; after the sand box is placed on the pallet, the pallet drives the telescopic rod group to contract under the action of gravity, and at the same time causes the sliding sleeve rod to slide in the positive direction along the first inclined groove, until the vibration spring is squeezed to the limit by the gravity of the pallet and the sand box, and the vibration spring rebounds to cause the pallet and the sand box to move upward, and the pallet drives the telescopic rod group to relax while causing the sliding sleeve rod to slide in the opposite direction along the first inclined groove; after the sliding sleeve rod slides in the opposite direction along the first inclined groove for a first preset distance, the oscillation component prevents the sliding sleeve rod from further sliding in the opposite direction, and intermittently causes the sliding sleeve rod to slide forward, so that the sliding sleeve rod drives the pallet to vibrate back and forth up and down under the joint action of the oscillation component and the vibration spring; wherein, the plane where the first inclined groove is located is parallel to the plane where the first direction is located.

[0006] Furthermore, a second oblique groove is provided on the mounting plate, and the second oblique groove is located above the first oblique groove and parallel to the first oblique groove; the vibration mechanism also includes a card plate, a ring, a stopper and a locking pin; the card plate, the ring and the oscillation assembly are all slidably mounted on the second oblique groove, and the second oblique groove limits the rotation of the ring; the oscillation assembly includes a driving motor and a rotating wheel, and the rotating wheel is coaxial with the output shaft of the driving motor and fixedly connected; the ring is sleeved on the output shaft of the driving motor, and in the initial state, the locking pin passes through the mounting plate and is inserted into the card plate, preventing the card plate from sliding along the second oblique groove; at the same time, the card plate is inserted into the ring and the output shaft of the driving motor along the radial direction of the ring, preventing the ring and the output shaft of the driving motor from rotating, thereby preventing the rotating wheel from rotating; the rotating wheel is clamped on the sliding sleeve rod to prevent the sliding sleeve rod from moving along the first direction, and the rotating wheel moves along the second During the second circumferential rotation, the sliding sleeve rod is intermittently caused to slide forward along the first inclined groove; after the locking pin is pulled out, the pallet and the sand box drive the telescopic rod group to retract under the action of gravity, while the sliding sleeve rod slides forward along the first inclined groove, and the sliding sleeve rod drives the driving motor, the collar, and the clamping plate to slide synchronously along the second inclined groove through the rotating wheel; the vibration spring rebounds to cause the sliding sleeve rod to slide in the opposite direction along the first inclined groove for a first preset distance, and the clamping plate is disengaged from the output shaft of the driving motor. At the same time, the stopper restricts the clamping plate from sliding along the second inclined groove and triggers the driving motor to start; the driving motor drives the rotating wheel to rotate in the second circumferential direction, intermittently causing the sliding sleeve rod to slide forward along the first inclined groove, and then intermittently causing the pallet and the sand box to move downward synchronously, so that the pallet and the sand box vibrate back and forth up and down under the drive of the rotating wheel and the rebound action of the vibration spring.

[0007] Furthermore, the collar is located on the side of the driving motor close to the tray, and the collar and the output shaft of the driving motor are both provided with a sliding groove that cooperates with the card plate, and the card plate limits the rotation of the collar and the output shaft of the driving motor by inserting into the sliding grooves on the collar and the output shaft of the driving motor, and disengages from the sliding groove on the output shaft of the driving motor when the card plate moves a second preset distance to the side close to the tray; a ratchet bar arranged along the length direction of the second inclined groove is provided on the second inclined groove, and the ratchet teeth on the ratchet bar are inclined, and a telescopic tooth block cooperating with the ratchet teeth is provided on the card plate; when the card plate slides forward along the second inclined groove, the telescopic tooth block continuously crosses the inclined surface of the ratchet teeth, and when the card plate slides reversely along the second inclined groove, the telescopic tooth block is blocked by the straight surface of the ratchet teeth, and the straight surface of the ratchet teeth The guide card slides in the opposite direction of the first preset distance along the second inclined slot while moving a second preset distance in the direction close to the tray, thereby disengaging the card from the output shaft of the driving motor; a stop groove is also provided on the card, and the stop member includes a top pressure spring and a top pressure block, the top pressure block is located above the card, and abuts against the upper end surface of the card under the action of the top pressure spring, until the card moves the second preset distance in the direction close to the tray, the top pressure block is engaged with the stop groove under the action of the top pressure spring, hindering the movement of the card, thereby limiting the sliding of the ring along the second inclined slot, and the ring hinders the oscillation assembly from moving along the second inclined slot by being engaged with the output shaft of the driving motor; a trigger element is provided in the stop groove, which triggers the driving motor to start when the top pressure block is engaged with the stop groove.

[0008] Furthermore, a semi-cylindrical surface is provided at the upper end of the sliding sleeve rod, and the rotating wheel is composed of a wheel axle and a plurality of shifting rods evenly distributed around the wheel axle. The wheel axle is coaxial with and fixedly connected to the output shaft of the drive motor, and the shifting rods extend radially along the wheel axle. In an initial state, two adjacent shifting rods are clamped on both sides of the semi-cylindrical surface on the sliding sleeve rod, so that the rotating wheel moves synchronously with the sliding sleeve rod along the second inclined groove; when the rotating wheel rotates along the second circumferential direction, the shifting rods push the semi-cylindrical surface to cause the sliding sleeve rod to slide forward along the first inclined groove.

[0009] Furthermore, a plurality of tooth grooves continuously distributed in the vertical direction are provided in the supporting inner rod; the sliding sleeve rod is slidably installed in the first oblique groove through the transmission rod, the transmission rod passes through the supporting inner rod and is slidably installed on the sliding sleeve rod along the third direction, and the sliding sleeve rod limits the rotation of the transmission rod; a latching tooth is provided on the outside of the transmission rod, and in the initial state, the latching tooth is located on the side of the tooth groove away from the tray, and when the transmission rod moves a third preset distance toward the tray, the latching tooth cooperates with the tooth groove, thereby limiting the up and down sliding of the sliding sleeve rod and the supporting inner rod; a gear ring is also provided on the outside of the transmission rod, the gear ring is rotatably connected to the supporting inner rod, and the supporting inner rod limits the gear ring from sliding along the third direction; the gear ring and the transmission The rod is spirally matched, and the vibration mechanism also includes a tooth plate, which is fixedly connected to the ring; after the drive motor stops, the tray causes the sliding sleeve rod to slide in the opposite direction along the first inclined groove under the rebound action of the vibration spring, and the gear ring and the tooth plate enter into engagement and then disengage, and the gear ring rotates along the fourth circumferential direction under the meshing transmission with the tooth plate, and drives the transmission rod to move a third preset distance toward the tray through spiral matching with the transmission rod, so that the locking teeth on the transmission rod are engaged with the tooth grooves on the supporting inner rod, limiting the up and down sliding of the sliding sleeve rod and the supporting inner rod, thereby limiting the shaking of the tray; wherein the third direction and the first direction are both horizontal directions and perpendicular to each other.

[0010] Furthermore, a casting rapid demolding device also includes an ejection mechanism, which includes an ejection motor, a transmission sleeve and a screw. The transmission sleeve is rotatably installed on the frame around a vertical axis and rotates under the drive of the ejection motor; the screw can slide up and down and is installed on the transmission sleeve so as to rotate synchronously with the transmission sleeve, and the screw passes through the tray and is threadedly connected to the frame. When the screw rotates synchronously with the transmission sleeve, it moves upward under the threaded transmission of the frame to eject the casting.

[0011] Furthermore, there are multiple mounting plates evenly distributed along the circumference of the tray, and there are multiple corresponding vibration mechanisms, each vibration mechanism is correspondingly installed on a mounting plate.

[0012] The beneficial effects of the present invention are as follows: a casting rapid demoulding device of the present invention utilizes the gravity of the tray and the sand box to squeeze the vibration spring, and drives the sliding sleeve rod to slide in the forward direction along the first inclined groove, and the rear tray and the sand box drive the sliding sleeve rod to slide in the reverse direction along the first inclined groove under the rebound action of the vibration spring; the oscillation component prevents the sliding sleeve rod from further sliding in the reverse direction after the sliding sleeve rod slides in the reverse direction along the first inclined groove for a first preset distance, and intermittently prompts the sliding sleeve rod to slide in the forward direction, so that the sliding sleeve rod drives the tray to vibrate back and forth up and down under the joint action of the oscillation component and the vibration spring, thereby driving the sand box to vibrate up and down, prompting the casting to break contact with the molding sand, and reducing the adhesion of the casting and the molding sand during subsequent demolding.

[0013] Furthermore, the rebound of the vibration spring is used to drive the pallet and the sand box to continue to move upward, and drive the sliding sleeve to slide in the opposite direction along the first inclined groove, so that the sliding sleeve drives the transmission rod and the gear ring to move synchronously, and then the gear ring and the gear plate enter into engagement and then disengage. Under the meshing transmission with the gear plate and the spiral cooperation with the transmission rod, the gear ring drives the transmission rod to move a third preset distance toward the pallet, so that the locking teeth on the transmission rod are engaged with the tooth grooves on the supporting inner rod, limiting the up and down sliding of the sliding sleeve and the supporting inner rod, and then limiting the sliding of the telescopic rod group along the first inclined groove, thereby limiting the movement of the pallet in the vertical direction, and avoiding the up and down sliding caused by the weight reduction on the pallet when ejecting the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a casting rapid demoulding device of the present invention.

[0016] Figure 2 This is a front view of the overall structure of an embodiment of a casting rapid demoulding device of the present invention.

[0017] Figure 3 This is a schematic diagram of a vibration mechanism in an embodiment of a casting rapid demoulding device of the present invention.

[0018] Figure 4 This is a side view of the vibration mechanism in an embodiment of a casting rapid demoulding device of the present invention.

[0019] Figure 5 This is a schematic diagram from another perspective of the vibration mechanism in an embodiment of a casting rapid demoulding device of the present invention.

[0020] Figure 6 for Figure 5 Enlarged schematic diagram of point B in the middle.

[0021] Figure 7 This is a schematic cross-sectional view of a telescopic rod assembly of a vibration mechanism in an embodiment of a casting rapid demoulding device of the present invention.

[0022] Figure 8 This is a schematic diagram of the clamping plate structure in an embodiment of a casting rapid demoulding device of the present invention.

[0023] Figure 9 This is a schematic diagram of the mounting plate structure in an embodiment of a casting rapid demoulding device of the present invention.

[0024] Figure 10 for Figure 9 Middle AA section view.

[0025] In the figure: 100, frame; 110, mounting plate; 111, first inclined slot; 112, second inclined slot; 113, ratchet bar; 200, tray; 210, fixed shell; 300, vibration mechanism; 310, telescopic rod group; 311, sliding sleeve rod; 312, supporting inner rod; 313, transmission rod; 314, gear ring; 320, oscillation assembly; 321, drive motor; 322, rotating wheel; 330, clamping plate; 331, telescopic tooth block; 332, stop groove; 340, collar; 350, stop member; 351, top pressure spring; 352, top pressure block; 360, locking pin; 370, tooth plate; 400, vibration spring; 500, sand box; 600, ejection mechanism; 610, ejection motor; 620, transmission sleeve; 630, screw. Implementation Method

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0027] An embodiment of a casting rapid demoulding device of the present invention is as follows Figures 1 to 10 As shown, it is used to separate the casting from the sand box 500, including a frame 100, a tray 200, a vibration mechanism 300 and a vibration spring 400,

[0028] The tray 200 and the frame 100 are connected by a vertically extending vibration spring 400, which allows the tray 200 to be suspended horizontally above the frame 100;

[0029] The flask 500 is placed on the tray 200;

[0030] The frame 100 is provided with a vertical mounting plate 110, and the mounting plate 110 is provided with a first inclined slot 111. The first inclined slot 111 forms a certain angle with the horizontal plane, and the two ends of the first inclined slot 111 are respectively a head end and a tail end, and the head end is higher than the tail end. Sliding along the first inclined slot 111 from the head end to the tail end is a forward sliding, and sliding along the first inclined slot 111 from the tail end to the head end is a reverse sliding.

[0031] The vibration mechanism 300 includes a telescopic rod group 310 and an oscillation component 320.

[0032] When the jack is lifted up, the jack 312 is in the forward position, and the position of supporting plate 311 is set, and support pin 311 is set, and support pin 311 is in the forward position, and support pin 311 is in the forward position.

[0033] After the flask 500 is placed on the tray 200, the tray 200 drives the telescopic rod assembly 310 to contract under the action of gravity, while causing the sliding sleeve rod 311 to slide forward along the first chute 111. When the vibration spring 400 is squeezed to its limit by the gravity of the tray 200 and the flask 500, the vibration spring 400 rebounds, causing the tray 200 and the flask 500 to move upward. The tray 200 drives the telescopic rod assembly 310 to expand, while causing the sliding sleeve rod 311 to slide in the opposite direction along the first chute 111.

[0034] After the sliding sleeve 311 slides in the reverse direction along the first inclined groove 111 for a first preset distance, the oscillation component 320 prevents the sliding sleeve 311 from sliding further in the reverse direction and intermittently forces the sliding sleeve 311 to slide in the forward direction, so that the sliding sleeve 311 drives the tray 200 to vibrate back and forth up and down under the joint action of the oscillation component 320 and the vibration spring 400; wherein, the plane where the first inclined groove 111 is located is parallel to the plane where the first direction is located.

[0035] In this embodiment, a second inclined groove 112 is further provided on the mounting plate 110. The second inclined groove 112 is located above the first inclined groove 111 and is parallel to the first inclined groove 111, and the head end and the end end of the second inclined groove 112 are respectively located above the head end and the end end of the first inclined groove 111; the vibration mechanism 300 also includes a card plate 330, a collar 340, a stopper 350 and a locking pin 360; the card plate 330, the collar 340 and the oscillation assembly 320 are all slidably mounted on the second inclined groove 112, and the second inclined groove 112 limits the rotation of the collar 340; the oscillation assembly 320 includes a drive motor 321 and a rotating wheel 322, and the rotating wheel The first and second cams 322 and 323 are connected in a coaxial manner to the output shaft of the driving motor 321, and the first and second cams 322 are connected in a coaxial manner to the output shaft of the driving motor 321. The first and second cams 322 and 323 are connected in a coaxial manner to the output shaft of the driving motor 321. The first and second cams 322 and 323 are connected in a coaxial manner to the output shaft of the driving motor 321. The first and second cams 322 and 323 are connected in a coaxial manner to the output shaft of the driving motor 321. When rotating, the sliding sleeve rod 311 is intermittently caused to slide forward along the first inclined groove 111; after the locking pin 360 is pulled out, the tray 200 and the sand box 500 drive the telescopic rod group 310 to retract under the action of gravity, and at the same time, the sliding sleeve rod 311 slides forward along the first inclined groove 111, and the sliding sleeve rod 311 drives the driving motor 321, the collar 340, and the clamping plate 330 to slide forward along the second inclined groove 112 synchronously through the rotating wheel 322; the vibration spring 400 rebounds and causes the sliding sleeve rod 311 to slide in the opposite direction along the first inclined groove 111 for a first preset distance, and the clamping plate 330 is disengaged from the output shaft of the driving motor 321, and the stopper is stopped at the same time. The component 350 limits the sliding of the clamping plate 330 along the second inclined groove 112, and then limits the sliding of the oscillation assembly 320 along the second inclined groove 112 by limiting the sliding of the ring 340 along the second inclined groove 112, and the cooperation between the stopper 350 and the clamping plate 330 triggers the start of the driving motor 321; the driving motor 321 drives the rotating wheel 322 to rotate along the second circumferential direction intermittently to cause the sliding sleeve rod 311 to slide forward along the first inclined groove 111, and then intermittently causes the tray 200 and the sand box 500 to move downward synchronously, so that the tray 200 and the sand box 500 vibrate back and forth up and down under the drive of the rotating wheel 322 and the rebound action of the vibration spring 400.

[0036] In this embodiment, the collar 340 is located on the side of the drive motor 321 close to the tray 200, and the output shafts of the collar 340 and the drive motor 321 are both provided with a sliding groove that cooperates with the card plate 330. The card plate 330 limits the rotation of the collar 340 and the output shaft of the drive motor 321 by inserting into the sliding groove on the output shaft of the collar 340 and the drive motor 321, and disengages from the sliding groove on the output shaft of the drive motor 321 when the card plate 330 moves a second preset distance toward the side close to the tray 200; the second inclined groove 11 2 is provided with a ratchet bar 113 arranged along the length direction of the second inclined groove 112, and the ratchet teeth on the ratchet bar 113 are all inclined, and the card plate 330 is provided with a telescopic tooth block 331 that cooperates with the ratchet teeth; when the card plate 330 slides forward along the second inclined groove 112, the telescopic tooth block 331 continuously passes over the inclined surface of the ratchet teeth on the ratchet bar 113, and when the card plate 330 slides reversely along the second inclined groove 112, the telescopic tooth block 331 is blocked by the straight surface of the ratchet teeth, and the straight surface of the ratchet teeth guides the card plate 330 to slide reversely along the second inclined groove 112. The first stop 330 is moved to the left of the second stop 330 and the second stop 330 is moved to the right of the second stop 330. The second stop 330 is moved to the right of the second stop 330 and the second stop 330 is moved to the left of the second stop 330. 0 moves a second preset distance toward the tray 200. Under the action of the pressing spring 351, the pressing block 352 causes part of the clamping column to engage with the stop groove 332, thereby preventing the clamping plate 330 from moving, thereby limiting the sliding of the collar 340 along the second inclined groove 112. The collar 340 is sleeved with the output shaft of the drive motor 321, thereby preventing the oscillation assembly 320 from moving along the second inclined groove 112. A trigger element is provided in the stop groove 332. When the clamping column of the pressing block 352 engages with the stop groove 332, the drive motor 321 is triggered to start.

[0037] In this embodiment, a semi-cylindrical surface is provided at the upper end of the sliding sleeve rod 311, and the rotating wheel 322 is composed of a wheel axle and a plurality of shifting rods evenly distributed around the wheel axle. The wheel axle is coaxial with and fixedly connected to the output shaft of the drive motor 321. The shifting rods extend radially along the wheel axle, and in an initial state, two adjacent shifting rods are clamped on both sides of the semi-cylindrical surface on the sliding sleeve rod 311, so that the rotating wheel 322 moves synchronously with the sliding sleeve rod 311 along the second inclined groove 112; when the rotating wheel 322 rotates along the second circumferential direction, the shifting rods push the semi-cylindrical surface to cause the sliding sleeve rod 311 to slide in the positive direction along the first inclined groove 111.

[0038] When the cam 312 is unlocked, the cam 313 is unlocked and the lock 314 is unlocked, so that the cam 313 can be unlocked and the lock 314 can be unlocked. The cam 314 is in the process of being rotated with the tooth plate 370, and the tooth plate 370 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370, and the cam 314 is in the process of being rotated with the tooth plate 370,

[0039] In this embodiment, a fixed shell 210 is further provided on the pallet 200. The fixed shell 210 is detachably mounted on the pallet 200 to limit the translation of the flask 500 on the pallet 200 and prevent the upper and lower parts of the flask 500 from being misaligned during vibration.

[0040] In this embodiment, a casting rapid demoulding device also includes an ejection mechanism 600, which includes an ejection motor 610, a transmission sleeve 620 and a screw 630. The transmission sleeve 620 is rotatably installed on the frame 100 around a vertical axis and rotates under the drive of the ejection motor 610; the screw 630 can slide up and down and is installed on the transmission sleeve 620 so as to rotate synchronously with the transmission sleeve 620, and the screw 630 passes through the tray 200 and is threadedly connected to the frame 100. When the screw 630 rotates synchronously with the transmission sleeve 620, it moves upward under the threaded transmission of the frame 100 to eject the casting.

[0041] In this embodiment, there are multiple mounting plates 110 evenly distributed along the circumference of the tray 200 , and there are corresponding multiple vibration mechanisms 300 , each vibration mechanism 300 is correspondingly installed on one mounting plate 110 .

[0042] In the initial state of a casting rapid demoulding device of the present invention, the oscillation assembly 320, the collar 340 and the card plate 330 are all located at the head end of the second inclined groove 112, the locking pin 360 is inserted into the card plate 330 to prevent the card plate 330 from sliding along the second inclined groove 112, the card plate 330 is inserted into the collar 340 and the sliding groove on the output shaft of the drive motor 321 to prevent the collar 340 and the oscillation assembly 320 from sliding along the second inclined groove 112, and hinder the rotation of the output shaft of the drive motor 321, the lever of the rotating wheel 322 is stuck on both sides of the semi-cylindrical surface on the sliding sleeve rod 311, hindering the sliding sleeve rod 311 from sliding along the first inclined groove 111, thereby hindering the telescopic rod group 310 from contracting.

[0043] The flask 500 is placed on the pallet 200 and fixed with the fixed shell 210 , and then casting is performed in the flask 500 . The telescopic rod group 310 tends to contract under the gravity of the pallet 200 and the flask 500 , causing the sliding sleeve 311 to tend to slide forward along the first inclined groove 111 .

[0044] When the casting cools to the demolding temperature, the locking pin 360 is pulled out, and the sliding sleeve 311 drives the drive motor 321, the collar 340 and the card plate 330 to slide in the forward direction along the second inclined groove 112 through the rotating wheel 322. During the forward sliding process of the card plate 330, the telescopic tooth block 331 continuously passes over the inclined surface of the ratchet teeth on the ratchet bar 113. The gravity of the tray 200 and the sand box 500 squeezes the vibration spring 400 to its limit. The tray 200 moves upward under the rebound of the vibration spring 400 and drives the sliding sleeve 311 to slide in the opposite direction along the first inclined groove 111. The sliding sleeve 311 drives the drive motor 321, the collar 340 and the card plate 330 to slide in the opposite direction along the second inclined groove 112 through the rotating wheel 322. When the telescopic tooth block 331 slides in the opposite direction with the card plate 330, it is blocked by the straight surface of the ratchet teeth on the ratchet bar 113. The straight surface of the ratchet teeth on the ratchet bar 113 guides the card plate 330 to slide in the opposite direction along the second inclined slot 112 by a first preset distance while moving toward the direction close to the tray 200 by a second preset distance, thereby causing the card plate 330 to disengage from the sliding slot on the output shaft of the drive motor 321. At the same time, the top pressure block 352, under the action of the top pressure spring 351, causes part of the card column to engage with the stop groove 332, thereby preventing the card plate 330 from sliding along the second inclined slot 112 and triggering the drive motor 321 to start. The driving motor 321 drives the rotating wheel 322 to rotate along the second circumferential direction, so that the lever of the rotating wheel 322 pushes the semi-cylindrical surface to make the sliding sleeve rod 311 slide forward along the first inclined groove 111, further squeezing the vibration spring 400. After one of the levers of the rotating wheel 322 is out of contact with the semi-cylindrical surface of the sliding sleeve rod 311, the sliding sleeve rod 311 slides in the opposite direction under the rebound of the vibration spring 400, until the next lever of the rotating wheel 322 pushes the sliding sleeve rod 311 to slide forward again. Under the action of the rotating wheel 322 and the vibration spring 400, the sliding sleeve rod 311 moves back and forth along the first inclined groove 111, thereby causing the tray 200 and the sand box 500 to vibrate up and down. After the vibration is completed, the driving motor 321 is turned off, and the tray 200 and the sand box 500 continue to move upward under the rebound action of the vibration spring 400, and drive the sliding sleeve 311 to slide in the opposite direction along the first inclined groove 111. Since the collar 340 is stationary under the restriction of the clamping plate 330, the tooth plate 370 fixedly connected to the collar 340 remains stationary, and the sliding sleeve 311 drives the transmission rod 313 and the gear ring 314 to move synchronously, so that the gear ring 314 and the gear plate 370 enter into meshing and then disengage. The ring gear 314 rotates along the fourth circumferential direction under the meshing transmission with the tooth plate 370, and drives the transmission rod 313 to move a third preset distance toward the tray 200 through the spiral cooperation with the transmission rod 313, so that the locking teeth on the transmission rod 313 are engaged with the tooth grooves on the supporting inner rod 312, limiting the up and down sliding of the sliding sleeve rod 311 and the supporting inner rod 312, and then limiting the sliding of the telescopic rod group 310 along the first inclined groove 111, thereby limiting the movement of the tray 200 in the vertical direction.

[0045] The ejection motor 610 is started, and the transmission sleeve 620 rotates under the drive of the ejection motor 610 and drives the screw 630 to rotate synchronously, so that the screw 630 moves upward under the thread transmission with the frame 100 to eject the casting.

[0046] After the flask 500 and the casting inside the flask 500 are removed, the top pressure block 352 is pushed upward, so that the clamping column on the lower side of the top pressure block 352 disengages from the stop groove 332, pushing the clamping plate 330 to slide in the opposite direction along the second inclined groove 112. The clamping plate 330 drives the collar 340, and the collar 340 drives the oscillation assembly 320 to slide in the opposite direction synchronously. When the collar 340 slides in the opposite direction along the second inclined groove 112, it drives the tooth plate 370 to move synchronously, so that the tooth plate 370 and the gear ring 314 enter into engagement and then disengage. The gear ring 314 rotates in the fifth circumferential direction opposite to the fourth circumferential direction under the meshing transmission with the tooth plate 370, and drives the transmission rod 313 to move a third preset distance away from the tray 200 through the spiral cooperation with the transmission rod 313, so that the clamping teeth on the transmission rod 313 disengage from the tooth grooves on the support inner rod 312, allowing the sliding sleeve rod 311 and the support inner rod After the cam 312 slides up and down, the sliding sleeve 311 is pushed to slide in the opposite direction along the first inclined groove 111; until the card plate 330, the ring 340, the oscillation assembly 320 and the telescopic rod group 310 all return to their initial positions, the card plate 330 is pushed away from the tray 200, so that the card plate 330 is inserted into the sliding groove on the ring 340 and the output shaft of the drive motor 321 again, and the telescopic tooth block 331 on the card plate 330 cooperates with the ratchet on the ratchet bar 113, and the locking pin 360 is inserted into the card plate 330 again.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A casting rapid demoulding device for removing a casting from a sand box, characterized in that: The invention comprises a frame, a tray, a vibration mechanism and a vibration spring. The tray and the frame are connected by a vertically extending vibration spring, and the vibration spring makes the tray suspend above the frame; the sand box is arranged on the tray; a vertically arranged mounting plate is provided on the frame, and a first inclined slot is provided on the mounting plate; the vibration mechanism comprises a telescopic rod group and an oscillation component; the telescopic rod group comprises a sliding sleeve rod and a supporting inner rod; the sliding sleeve rod and the supporting inner rod can be slidably connected up and down, and the supporting inner rod is located below the sliding sleeve rod; the supporting inner rod is slidably installed on the frame along a first direction; one end of the sliding sleeve rod is slidably installed on the tray along the first direction, and the other end is slidably installed in the first inclined slot; after the sand box is placed on the tray, the tray Under the action of gravity, the disc drives the telescopic rod group to contract while causing the sliding sleeve to slide forward along the first inclined slot, until the vibration spring is squeezed to its limit by the gravity of the tray and the sand box, and the vibration spring rebounds to cause the tray and the sand box to move upward. The tray drives the telescopic rod group to expand while causing the sliding sleeve to slide in the opposite direction along the first inclined slot. After the sliding sleeve slides a first preset distance in the opposite direction along the first inclined slot, the oscillation assembly prevents the sliding sleeve from sliding further in the opposite direction and intermittently causes the sliding sleeve to slide forward, so that the sliding sleeve drives the tray to vibrate reciprocatingly up and down under the combined action of the oscillation assembly and the vibration spring. The plane of the first inclined slot is parallel to the plane of the first direction. The mounting plate is also provided with a second inclined groove, which is located above the first inclined groove and parallel to the first inclined groove; the vibration mechanism also includes a card plate, a ring, a stopper and a locking pin; the card plate, the ring and the oscillation assembly are all slidably mounted in the second inclined groove, and the second inclined groove limits the rotation of the ring; the oscillation assembly includes a driving motor and a rotating wheel, which is coaxial with the output shaft of the driving motor and fixedly connected; the ring is sleeved on the output shaft of the driving motor, and in the initial state, the locking pin passes through the mounting plate and is inserted into the card plate, preventing the card plate from sliding along the second inclined groove; at the same time, the card plate is inserted into the ring and the output shaft of the driving motor along the radial direction of the ring, preventing the ring and the output shaft of the driving motor from rotating, thereby preventing the rotating wheel from rotating; the rotating wheel is clamped on the sliding sleeve rod to prevent the sliding sleeve rod from moving along the first direction, and the rotating wheel moves along the second circumferential direction During rotation, the sliding sleeve rod is intermittently caused to slide forward along the first inclined groove; after the locking pin is pulled out, the pallet and the sand box drive the telescopic rod group to retract under the action of gravity, while the sliding sleeve rod slides forward along the first inclined groove, and the sliding sleeve rod drives the driving motor, the collar, and the clamping plate to slide synchronously along the second inclined groove through the rotating wheel; the vibration spring rebounds to cause the sliding sleeve rod to slide in the opposite direction along the first inclined groove for a first preset distance, and the clamping plate is disengaged from the output shaft of the driving motor. At the same time, the stopper restricts the clamping plate from sliding along the second inclined groove and triggers the driving motor to start; the driving motor drives the rotating wheel to rotate in the second circumferential direction, intermittently causing the sliding sleeve rod to slide forward along the first inclined groove, and then intermittently causing the pallet and the sand box to move downward synchronously, so that the pallet and the sand box vibrate back and forth up and down under the drive of the rotating wheel and the rebound action of the vibration spring.

2. A casting rapid demoulding device according to claim 1, characterized in that: The collar is located on the side of the driving motor close to the tray, and the collar and the output shaft of the driving motor are both provided with a sliding groove that cooperates with the card plate. The card plate limits the rotation of the collar and the output shaft of the driving motor by inserting into the sliding groove on the collar and the output shaft of the driving motor, and disengages from the sliding groove on the output shaft of the driving motor when the card plate moves a second preset distance to the side close to the tray; a ratchet bar arranged along the length direction of the second inclined groove is provided on the second inclined groove, and the ratchet teeth on the ratchet bar are inclined, and a telescopic tooth block cooperating with the ratchet teeth is provided on the card plate; when the card plate slides forward along the second inclined groove, the telescopic tooth block continuously crosses the inclined surface of the ratchet teeth, and when the card plate slides reversely along the second inclined groove, the telescopic tooth block is blocked by the straight surface of the ratchet teeth, and the straight surface of the ratchet teeth guides the card plate The plate slides in the opposite direction of the first preset distance along the second inclined slot while moving a second preset distance in the direction close to the tray, thereby causing the card plate to disengage from the output shaft of the driving motor; a stop groove is also provided on the card plate, and the stop member includes a top pressure spring and a top pressure block, the top pressure block is located above the card plate, and abuts against the upper end surface of the card plate under the action of the top pressure spring, until the card plate moves a second preset distance in the direction close to the tray, the top pressure block is engaged with the stop groove under the action of the top pressure spring, hindering the movement of the card plate, thereby limiting the sliding of the ring along the second inclined slot, and the ring hinders the oscillation assembly from moving along the second inclined slot by being engaged with the output shaft of the driving motor; a trigger element is provided in the stop groove, which triggers the driving motor to start when the top pressure block is engaged with the stop groove.

3. A casting rapid demoulding device according to claim 1, characterized in that: A semi-cylindrical surface is provided at the upper end of the sliding sleeve rod. The rotating wheel consists of a wheel axle and a plurality of shifting rods evenly distributed around the wheel axle. The wheel axle is coaxial with and fixedly connected to the output shaft of the drive motor. The shifting rods extend radially along the wheel axle. In an initial state, two adjacent shifting rods are clamped on both sides of the semi-cylindrical surface on the sliding sleeve rod, so that the rotating wheel moves synchronously with the sliding sleeve rod along the second inclined groove. When the rotating wheel rotates along the second circumferential direction, the shifting rods push the semi-cylindrical surface to cause the sliding sleeve rod to slide in the positive direction along the first inclined groove.

4. A casting rapid demoulding device according to claim 2, characterized in that: The supporting inner rod is provided with a plurality of tooth grooves continuously distributed in the vertical direction; the sliding sleeve rod is slidably installed in the first inclined groove through the transmission rod, the transmission rod passes through the supporting inner rod and is slidably installed on the sliding sleeve rod along the third direction, and the sliding sleeve rod limits the rotation of the transmission rod; a latching tooth is provided on the outside of the transmission rod, and in the initial state, the latching tooth is located on the side of the tooth groove away from the tray, and when the transmission rod moves a third preset distance toward the tray, the latching tooth cooperates with the tooth groove, thereby limiting the up and down sliding of the sliding sleeve rod and the supporting inner rod; a gear ring is also provided on the outside of the transmission rod, the gear ring is rotatably connected to the supporting inner rod, and the supporting inner rod limits the gear ring from sliding along the third direction; the gear ring is screwed to the transmission rod The vibration mechanism also includes a tooth plate, which is fixedly connected to the ring; after the driving motor stops, the tray causes the sliding sleeve rod to slide in the opposite direction along the first inclined groove under the rebound action of the vibration spring, and the gear ring and the tooth plate enter into engagement and then disengage, and the gear ring rotates along the fourth circumferential direction under the meshing transmission with the tooth plate, and drives the transmission rod to move a third preset distance toward the tray through spiral cooperation with the transmission rod, so that the locking teeth on the transmission rod are engaged with the tooth grooves on the supporting inner rod, limiting the up and down sliding of the sliding sleeve rod and the supporting inner rod, thereby limiting the shaking of the tray; wherein, the third direction and the first direction are both horizontal directions and perpendicular to each other.

5. The rapid demoulding device for casting according to claim 1, characterized in that: It also includes an ejection mechanism, which includes an ejection motor, a transmission sleeve and a screw. The transmission sleeve is rotatably mounted on the frame around a vertical axis and rotates under the drive of the ejection motor; the screw can slide up and down and is mounted on the transmission sleeve so as to rotate synchronously with the transmission sleeve, and the screw passes through the tray and is threadedly connected to the frame. When the screw rotates synchronously with the transmission sleeve, it moves upward under the threaded transmission of the frame to eject the casting.

6. A casting rapid demoulding device according to claim 1, characterized in that: There are multiple mounting plates evenly distributed along the circumference of the tray, and there are multiple corresponding vibration mechanisms, each of which is mounted on a corresponding mounting plate.

Images