Brake disc stacking box mold and brake disc casting method

Abstract

The invention relates to the technical field of brake disc casting, and discloses a brake disc stacking box mold and a brake disc casting method.The brake disc stacking box mold comprises a bottom mold base, a vibration mold base is slidably connected to the inner wall of the bottom mold base in a clamped mode, a sand mold is arranged in the middle of the vibration mold base, and sand cleaning openings are formed in the front side of the bottom mold base and the front side of the vibration mold base; the bottom of the sand mold is provided with a shunting cavity, a plurality of upper mold bases are movably clamped on the sand mold in sequence, the upper ends of the upper mold bases are provided with brake disc cavities, and the upper mold base at the top is movably clamped with a top mold base. By avoiding the use of a partition plate and a ventilation core, the placing amount of a mold for casting and molding the brake disc is greatly reduced, the molding of the brake disc is not interfered by the collision damage of a sand mold, the casting and molding are reliable, in addition, only one sand mold in the bottom mold base is used for assisting the cutting and separation of subsequent runner iron, the waste of the sand mold is relatively low, the sand making cost is saved, and the production efficiency is improved. The vibration assembly is used for directly controlling demolding and sprue separation, and the machining efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of brake disc casting, and in particular to a brake disc stacking mold and a brake disc casting method. Background Art

[0002] In the automotive industry, brake discs are key components to ensure vehicle braking safety, and their production and quality directly affect the overall performance and safety of the vehicle. The existing casting method for manufacturing brake discs with ventilation ducts adopts green sand molding, where the outer shape is molded with green sand and cast in the form of stacked boxes.

[0003] The utility model patent with announcement number CN219665055U discloses a casting stacking box and casting pouring system for brake disc casting with ventilation duct, which relates to the field of brake disc casting technology and solves the problem that the existing sand core box assembly process is prone to sand mold scratching or sand core drifting, and the single inner gate centering filling method will cause uneven hardness of the brake disc. The patent includes an upper ventilation core, a lower ventilation core and a partition core, a partition core is placed on the lower ventilation core, and an upper ventilation core is placed on the partition core; a sand shooting center is set in the center of the partition core, and a number of air holes are evenly distributed around the sand shooting center. The air holes cooperate with the upper ventilation core and the lower ventilation core to form an exhaust chamber to discharge the gas generated during the casting process.

[0004] During the use of the casting stacking box mold in the above patent for casting brake discs, the upper and lower sand molds are used to seal the outside, and the lower ventilation core, the partition core, and the upper ventilation core need to be placed in sequence between every two brake discs inside. For the casting of multiple sets of brake discs, multiple sets of molds need to be placed, which is very troublesome; since the parts in contact with the brake discs are all made of sand molds, and the sand molds are pressed by molding sand, it is very easy for them to collide with each other when all sand molds are installed, resulting in casting defects; when casting multiple brake discs, multiple sand molds are needed to match them, and these sand molds are often not reusable. For example, the ventilation core used for forming the brake disc air duct must be broken to obtain the brake disc, and the use of a large number of sand molds is wasteful and costly; after the casting is completed and the sand molds are removed, it is often necessary to transfer the multiple brake discs connected to the runner iron as a whole to a specific vibration equipment for gate separation, and the processing efficiency is low. Summary of the invention

[0005] The purpose of the present invention is to solve the problems that the general brake disc sand mold stacking box mold is inconvenient to place during use, is prone to casting defects due to damage, a large number of disposable sand molds are used, resulting in waste and high cost, and the transfer for gate separation leads to low processing efficiency. The present invention provides a brake disc stacking box mold and a brake disc casting method.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A brake disc stacking mold, comprising a bottom mold base, a vibration mold base is slidably connected to the inner wall of the bottom mold base, a sand mold is arranged in the middle of the vibration mold base, a sand cleaning port is provided on the bottom mold base and the front side of the vibration mold base, a diversion cavity is provided at the bottom of the sand mold, a plurality of upper mold bases are movably connected to the sand mold in sequence, a brake disc cavity is provided at the upper end of the upper mold base, and a top mold base is movably connected to the upper mold base at the top; The middle edges of the upper mold base and the top mold base are both provided with L-shaped runners connected to the diversion cavity and the brake disc cavity. The middle of the top mold base is provided with a straight runner that penetrates the upper mold base and is connected to the diversion cavity. An elastic sealing component is provided on the upper side of the L-shaped runner. A plurality of ventilation groove plates in a circular array are slidably inserted at the edge of the brake disc cavity. Vibration components are provided on the left and right sides of the upper mold base at the bottom. The vibration components are used to adjust the demolding of the ventilation groove plates and the separation of the casting from the gate.

[0007] Furthermore, an elliptical enclosure that is movably sleeved on the outside of the sand mold is provided in the middle of the vibration mold base, and the top height of the elliptical enclosure is lower than the height of the adjacent lower wall of the upper mold base. The edge of the vibration mold base is threadedly connected to a guide ring that is rotatably connected to the inner wall of the bottom mold base, and three guide pillars are fixedly connected to the guide ring.

[0008] Furthermore, handles are fixedly connected to the left and right sides of the upper die base, and the upper die base at the bottom is movably overlapped on the edge of the bottom die base.

[0009] Furthermore, the L-shaped runners are circumferentially arranged on the upper mold base and the top mold base, and the number of each is three. The L-shaped runners are offset and misaligned from bottom to top, and the top of the L-shaped runner is horizontally inclined relative to the brake disc cavity.

[0010] Furthermore, the elastic sealing assembly includes an elastic ring slidably connected to the middle cavity wall of the upper mold base and the top mold base, the bottom of the elastic ring is fixedly connected to a sealing plate that is movably abutted against the top seal of the L-shaped runner, the inner side of the sealing plate is slidably clamped with an elastic plate that is movably abutted against the top seal of the L-shaped runner, the thickness of the elastic plate is less than the thickness of the sealing plate, and the upper mold base and the top mold base are respectively provided with avoidance cavities corresponding to the sealing plate and the elastic plate.

[0011] Furthermore, the ventilation groove plate is movably abutted against the inner wall of the middle part of the brake disc cavity, an oblique groove is opened on the ventilation groove plate, an adjustment ring is rotatably connected to the edge cavity wall of the upper mold base, a pin is provided on the adjustment ring and movably engaged with the oblique groove, three positioning columns are fixedly connected to the upper wall of the adjustment ring, the upper and lower positioning columns are movably connected to each other, and the guide column is movably connected to the positioning column.

[0012] Furthermore, the upper die seat and the top die seat are both provided with movable grooves corresponding to the positioning posts, and the positioning posts are movably sleeved with positioning tension springs fixedly connected to the inner wall of the movable grooves.

[0013] Further, the vibration components on both sides are arranged circumferentially, and the vibration components include a support rod fixedly connected to the inner wall of one side of the handle at the bottom, an adjustment cylinder and a gear cylinder meshing with the adjustment ring are slidably clamped on the support rod, and teeth corresponding to the gear cylinder are respectively arranged on both sides of the adjustment ring at the bottom, and an avoidance groove is arranged at one end of the adjustment cylinder away from the support rod and a buffer spring is fixedly connected therein, and the elastic force of the buffer spring is greater than the elastic force of the positioning tension spring; The other side of the handle is rotatably connected to a rotating shaft, which is driven by a motor installed on the outer wall of the handle, and a vibration cylinder movably sleeved on the rotating shaft is movably engaged with the inner wall of the gear cylinder, the inner wall of the vibration cylinder is provided with a curved annular groove connected end to end, and the outer wall of the rotating shaft is provided with a pin protrusion 2 movably engaged with the curved annular groove.

[0014] Further, the inner wall of the gear cylinder is rotatably connected with an adjusting ring sleeved on the outer periphery of the adjusting cylinder, the inner wall of the adjusting ring is provided with an arc groove, the outer wall of the adjusting cylinder is provided with a pin protrusion movably engaged with the arc groove, the bottom of the adjusting ring is fixedly connected with a clamping plate, and the bottom of the gear cylinder is provided with a swinging groove corresponding to the clamping plate; Telescopic cylinders are installed on both sides of the upper mold base at the bottom, and the telescopic ends of the telescopic cylinders are slidably connected to the side walls of the upper mold base. The telescopic ends of the telescopic cylinders are fixedly connected with convex pillars one and two, respectively. The convex pillar one is slidably engaged with the clamping plate, and a groove is provided at the bottom of the adjusting ring at the bottom for movably engaging with the convex pillar two.

[0015] A brake disc casting method comprises the following steps: S1, after the top mold base is pressed and fixed, molten iron is poured in through the sprue, flows into each brake disc cavity through the diversion cavity and each L-shaped runner, and after the molten iron is cooled, the used sand mold is cleaned out through the sand cleaning port; S2, controlling the vibration component to operate and providing each of the ventilation groove plates and the vibration mold base with a gradually increasing vibration force, the ventilation groove plates and the brake disc are automatically and safely demolded based on the vibration force, and the runner iron is automatically separated from each of the L-shaped runners and the straight runner based on the vibration force, and the runner iron in each of the L-shaped runners cooperates with the avoidance action of the elastic sealing component to break at the gate and separate from the brake disc, and break at the bend; S3, using an external cutting mechanism to cut off the runner iron at the bottom of each L-shaped runner and the straight runner within the space originally occupied by the sand mold through the sand cleaning port to separate them from each other, and subsequently controlling the vibration component to drive each ventilation slot plate to completely move out of the brake disc cavity; S4. Remove the top die seat and the upper die seat in sequence from top to bottom, and simultaneously remove each brake disc.

[0016] The beneficial effects of the present invention are as follows: When casting a batch of brake discs, the present invention uses a main body in the form of multiple upper mold bases in conjunction with a bottom mold base and a top mold base. Different mold bases are placed layer by layer in a simple stacking form, and a brake disc can be formed between two mold bases. Since the ventilation groove plate used for forming the ventilation groove of the brake disc is arranged in the upper mold base and can be controlled to retract, the use of partitions and ventilation cores is avoided, and the amount of molds placed for casting the brake disc is greatly reduced. The brake disc molding is located between the upper mold base and the top mold base, and is not affected by the damage of the sand mold. The casting and molding is reliable. In addition, only a sand mold in the bottom mold base is used to assist in the cutting and separation of the subsequent runner iron, so the waste of the sand mold is low, saving the sand making cost.

[0017] The present invention utilizes a vibration component after the brake disc is cast and formed, which can directly control the demoulding of the ventilation groove plate and the separation of the brake disc casting from the gate, and has high processing efficiency. By controlling and gradually increasing the vibration force, it is ensured that the demoulding of the ventilation groove plate and the separation of the brake disc casting from the gate can be carried out safely and reliably, avoiding major demoulding and separation damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of the box stacking mold of the present invention; Figure 2 It is a three-dimensional cutaway view of the box stacking mold of the present invention; Figure 3 It is an exploded view of the upper die base and the bottom die base of the stacking box mold of the present invention; Figure 4 It is an exploded view of the upper die base and the top die base of the stacking box mold of the present invention; Figure 5 It is a partial exploded view of the upper die base and elastic ring of the box stacking die of the present invention; Figure 6 The upper die seat of the stacking die of the present invention is a three-dimensional cutaway view Figure 1 ; Figure 7 The upper die seat of the stacking die of the present invention is a three-dimensional cutaway view Figure 2 ; Figure 8 It is a three-dimensional cutaway view of the gear cylinder portion of the stacking mold of the present invention; Fig. 9It is a partial exploded view of the gear cylinder and the adjusting cylinder of the stacking mold of the present invention; Fig.10 It is a three-dimensional cutaway view of the adjusting cylinder of the box stacking mold of the present invention; Fig.11 It is a three-dimensional structural diagram of the adjusting ring and the guide ring of the stacking box mold of the present invention; Fig.12 It is a three-dimensional structural diagram of the elastic ring part of the box stacking mold of the present invention.

[0019] 1. Bottom mold base; 11. Vibration mold base; 12. Guide ring; 13. Guide column; 14. Sand cleaning port; 2. Sand mold; 21. Diverter cavity; 3. Upper mold base; 31. Handle; 32. Brake disc cavity; 4. Top mold base; 5. L-shaped runner; 51. Elastic ring; 52. Sealing plate; 53. Elastic plate; 6. Ventilation groove plate; 61. Inclined groove; 62. Adjusting ring; 63. Pin column; 64. Positioning column; 65. Positioning tension spring; 7. Support rod; 71. Gear cylinder; 72. Adjusting tube; 73. Arc groove; 74. Clamping plate; 75. Adjusting cylinder; 76. Buffer spring; 77. Pin bulge one; 8. Rotating shaft; 81. Vibration cylinder; 82. Curved ring groove; 83. Pin bulge two; 9. Telescopic cylinder; 91. Boss one; 92. Boss two; 10. Straight runner. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] Embodiment 1, as Figure 1-Figure 12 As shown, a brake disc stacking box mold comprises a bottom mold base 1, a vibration mold base 11 is slidably connected to the inner wall of the bottom mold base 1, a sand mold 2 is arranged in the middle of the vibration mold base 11, a sand cleaning port 14 is provided on the front side of the bottom mold base 1 and the vibration mold base 11, a diversion cavity 21 is provided at the bottom of the sand mold 2, a plurality of upper mold bases 3 are movably connected to the sand mold 2 in sequence, a brake disc cavity 32 is arranged at the upper end of the upper mold base 3, and a top mold base 4 is movably connected to the top upper mold base 3; An L-shaped runner 5 communicating with the diverter cavity 21 and the brake disc cavity 32 is provided at the middle edges of the upper mold base 3 and the top mold base 4; a straight runner 10 penetrating the upper mold base 3 and communicating with the diverter cavity 21 is provided in the middle of the top mold base 4; an elastic sealing component is provided on the upper side of the L-shaped runner 5; a plurality of ventilation groove plates 6 in a circular array are slidably inserted at the edge of the brake disc cavity 32; vibration components are provided on the left and right sides of the bottom upper mold base 3, and the vibration components are used to adjust the demolding of the ventilation groove plates 6 and the separation of the casting from the gate.

[0022] When in use, the sand mold 2 is placed in the middle of the vibration mold base 11, and the upper mold base 3 and the top mold base 4 are stacked from bottom to top in sequence. After the top mold base 4 is pressed and fixed by an external fixing mechanism, molten iron is poured in through the sprue 10, and after passing through the diversion cavity 21, it is diverted to each brake disc cavity 32 by each L-shaped runner 5. After the molten iron is cooled, the used sand mold 2 is broken and cleaned out through the sand cleaning port 14. Subsequently, the vibration component is controlled to operate and provide each ventilation groove plate 6 and the vibration mold base 11 with a gradually increasing vibration force. The ventilation groove plate 6 and the brake disc are automatically and safely demolded based on the vibration force, and at the same time, the runner iron is automatically separated from each L-shaped runner 5 and the sprue 10 based on the vibration force. , the runner iron in each L-shaped runner 5 is broken at the gate and separated from the brake disc under the action of the vibration force in cooperation with the avoidance action of the elastic sealing component, and can be broken at the L-shaped bend after the vibration force is increased, so as to facilitate the lateral runner iron in the subsequent L-shaped runner 5 to be laterally detached, and then the external cutting mechanism is used to cut off the runner iron at the bottom of each L-shaped runner 5 and the straight runner 10 in the area above the diversion cavity 21 through the sand cleaning port 14 to separate them from each other, and the vibration component is controlled to drive each ventilation groove plate 6 to completely move out of the brake disc cavity 32, and the top mold base 4 and the upper mold base 3 are removed from top to bottom in turn, and at the same time, each brake disc and the broken runner iron in the corresponding mold base are removed.

[0023] Furthermore, handles 31 are fixedly connected to the left and right sides of the upper mold base 3 , and the bottom upper mold base 3 is movably overlapped on the edge of the bottom mold base 1 .

[0024] Embodiment 2, based on the above embodiment, L-shaped runners 5 are circumferentially arranged on the upper mold base 3 and the top mold base 4 and are three in number. The L-shaped runners 5 are offset and misaligned from bottom to top, and the top of the L-shaped runners 5 are horizontally inclined relative to the brake disc cavity 32.

[0025] This design facilitates non-centering rotational casting of the brake disc cavity 32 of each layer, realizes a rotating flow field, reduces the temperature gradient inside the molten iron, makes the molten iron temperature more uniform, and improves the casting quality. Moreover, since the L-shaped runner 5 corresponding to each layer of the brake disc cavity 32 is offset relative to other layers, after the molten iron in each L-shaped runner 5 is cooled to form runner iron, it is convenient to cooperate with the corresponding elastic sealing component under the action of vibration force to realize the fracture at the L-shaped bend.

[0026] Embodiment 2, on the basis of the above embodiment, the elastic sealing assembly includes an elastic ring 51 slidably connected to the middle cavity wall of the upper mold base 3 and the top mold base 4, the bottom of the elastic ring 51 is fixedly connected with a sealing plate 52 which is in active contact with the top seal of the L-shaped runner 5, the inner side of the sealing plate 52 is slidably clamped with an elastic plate 53 which is in active contact with the top seal of the L-shaped runner 5, the thickness of the elastic plate 53 is less than that of the sealing plate 52, and the upper mold base 3 and the top mold base 4 are respectively provided with avoidance cavities corresponding to the sealing plate 52 and the elastic plate 53.

[0027] With this design, when pouring molten iron, the sealing plate 52 and the elastic plate 53 work together to seal the top of the L-shaped runner 5. When the runner iron in the L-shaped runner 5 moves up and down under the action of vibration force, the sealing plate 52 can drive the elastic plate 53 to move upward under the action of extrusion force and go deep into the avoidance cavity for avoidance, so that the gate connection part between the L-shaped runner iron and the brake disc is subjected to repeated impact force and shear force under the action of vibration force, thereby causing metal fatigue until fracture. After the vibration effect is increased accordingly, the L-shaped runner iron pushes the sealing plate 52 to move up the maximum distance in the avoidance cavity under the action of vibration force, and the horizontal part of the L-shaped runner iron cannot continue to move upward, while the vertical part can continue to move upward by squeezing the elastic plate 53, thereby facilitating the fracture of the bending part of the L-shaped runner iron.

[0028] Embodiment three, on the basis of the above embodiment, the ventilation groove plate 6 is movably abutted against the inner wall in the middle of the brake disc cavity 32, an inclined groove 61 is provided on the ventilation groove plate 6, an adjusting ring 62 is rotatably connected to the edge cavity wall of the upper mold base 3, the adjusting ring 62 is provided with a pin 63 movably engaged with the inclined groove 61, three positioning columns 64 are fixedly connected to the upper wall of the adjusting ring 62, and the upper and lower positioning columns 64 are movably plugged into each other.

[0029] Both the upper die base 3 and the top die base 4 are provided with movable grooves corresponding to the positioning posts 64 , and the positioning posts 64 are movably sleeved with positioning tension springs 65 fixedly connected to the inner wall of the movable grooves.

[0030] The positioning column 64 is limited by the positioning tension spring 65, and the adjusting ring 62 drives the pin 63 to be fixedly engaged with the inclined groove 61, thereby limiting the movement of each ventilation groove plate 6. When casting the brake disc, the ventilation groove plate 6 is stably abutted against the inner wall of the middle part of the brake disc cavity 32, ensuring the stable molding of the brake disc ventilation groove.

[0031] Furthermore, since the adjusting rings 62 are relatively fixed, when the upper mold base 3 and the top mold base 4 are installed and connected, they can be positioned and installed through the three positioning columns 64 in each mold base, and the runner docking is convenient.

[0032] Embodiment 4, on the basis of the above embodiment, the vibration components on both sides are arranged circumferentially, and the vibration components include a support rod 7 fixedly connected to the inner wall of one side of the bottom handle 31, and an adjustment cylinder 75 and a gear cylinder 71 meshing with the adjustment ring 62 are slidably clamped on the support rod 7, and teeth corresponding to the gear cylinder 71 are respectively arranged on both sides of the bottom adjustment ring 62, and an avoidance groove is arranged at one end of the adjustment cylinder 75 away from the support rod 7 and a buffer spring 76 is fixedly connected therein, and the elastic force of the buffer spring 76 is greater than the elastic force of the positioning tension spring 65; The other side of the handle 31 is rotatably connected to a rotating shaft 8, which is driven by a motor installed on the outer wall of the handle 31. A vibration cylinder 81 is movably sleeved on the rotating shaft 8 and movably engaged with the inner wall of the gear cylinder 71. The inner wall of the vibration cylinder 81 is provided with a curved annular groove 82 connected end to end, and the outer wall of the rotating shaft 8 is provided with a pin protrusion 83 movably engaged with the curved annular groove 82.

[0033] When vibration demoulding and separation of runner iron are required, the control motor drives the rotating shaft 8 to make the pin convex 83 rotate continuously, and the pin convex 83 drives the curved ring groove 82 to make the vibration cylinder 81 reciprocate along the gear cylinder 71 to vibrate, and the vibration cylinder 81 intermittently squeezes the buffer spring 76 to push the adjustment cylinder 75 to make the gear cylinder 71 move slightly, and the gear cylinder 71 drives the bottom adjustment ring 62 to rotate, and the adjustment ring 62 can automatically reset when the vibration cylinder 81 cancels the squeezing action under the elastic force of the positioning tension spring 65, thereby realizing the reciprocating deflection of the adjustment ring 62, and through the transmission of each positioning column 64, the ventilation groove plate 6 in each mold base can automatically vibrate under the drive of the corresponding adjustment ring 62 to achieve demoulding with the brake disc, so as to avoid subsequent adhesion and difficulty in removal.

[0034] Embodiment 5, on the basis of the above embodiment, the inner wall of the gear cylinder 71 is rotatably connected with an adjusting tube 72 sleeved on the outer periphery of the adjusting cylinder 75, the inner wall of the adjusting tube 72 is provided with an arc groove 73, the outer wall of the adjusting cylinder 75 is provided with a pin convex 77 movably engaged with the arc groove 73, the bottom of the adjusting tube 72 is fixedly connected with a clamping plate 74, and the bottom of the gear cylinder 71 is provided with a swing groove corresponding to the clamping plate 74; Telescopic cylinders 9 are installed on both sides of the bottom upper mold base 3 respectively, and the telescopic ends of the telescopic cylinders 9 are slidably connected to the side walls of the upper mold base 3. The telescopic ends of the telescopic cylinders 9 are fixedly connected with convex pillars 1 91 and convex pillars 2 92 respectively. The convex pillars 1 91 are slidably engaged with the clamping plate 74, and a slot for movably engaging with the convex pillars 2 92 is provided at the bottom of the bottom adjusting ring 62.

[0035] The cam 75 is pressed against the locking cam 76 to move the locking cam 76 in a direction that the locking cam 76 is in contact with the locking cam 76. When the cam 75 is pressed against the locking cam 76, the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the locking cam 76 moves in a direction that the The vibration cylinder 81 can directly squeeze the adjustment cylinder 75, thereby increasing the transmission of the vibration force, increasing the reciprocating deflection amplitude of the adjustment ring 62 driven by the gear cylinder 71, so as to achieve the effect of gradually increasing the vibration force, avoiding excessive initial impact force when the demoulding and the runner iron are separated, resulting in greater damage to the separated part of the brake disc. When the brake disc needs to be removed, the telescopic cylinder 9 is controlled to extend to the maximum length so that the adjustment cylinder 75 is close enough to the vibration cylinder 81, and the motor is controlled to drive the rotating shaft 8 to extend the vibration cylinder 81 to the longest distance and maintain it, so that the vibration cylinder 81 squeezes the adjustment cylinder 75 so that the gear cylinder 71 moves the maximum distance, thereby driving the adjustment ring 62 to deflect to the maximum extent, and each ventilation slot plate 6 is completely removed from the brake disc; Initially, the telescopic cylinder 9 drives the second boss 92 to engage with the slot to limit the deflection of the adjusting ring 62, thereby further fixing the adjusting ring 62, strengthening the seamless abutment effect between the ventilation groove plate 6 and the middle inner wall of the brake disc cavity 32, and improving the molding reliability of the brake disc ventilation groove. Before vibration is required, the telescopic cylinder 9 can be controlled to extend to drive the second boss 92 to disengage from the slot to release the limit on the adjusting ring 62. Correspondingly, the telescopic cylinder 9 can drive the first boss 91 to move the buffer spring 76 close to the vibration cylinder 81 to reach the initial compressed position.

[0036] Embodiment 6. On the basis of the above embodiments, an elliptical enclosure movably sleeved on the outside of the sand mold 2 is provided in the middle of the vibration mold base 11, and the top height of the elliptical enclosure is lower than the height of the lower wall of the adjacent upper mold base 3. The edge of the vibration mold base 11 is threadedly connected to a guide ring 12 rotatably connected to the inner wall of the bottom mold base 1, and three guide columns 13 are fixedly connected to the guide ring 12, and the guide columns 13 are movably plugged into the positioning columns 64.

[0037] The elliptical surrounding design of the sand mold 2 facilitates the positioning of the sand mold 2; when installing the upper mold base 3 connected to the bottom, the three positioning columns 64 in the upper mold base 3 are plugged and positioned with the guide columns 13, thereby facilitating the runner docking.

[0038] The initial vibration mold base 11 is at the bottom of the inner cavity of the bottom mold base 1. When the adjustment ring 62 drives the positioning column 64 to make the guide column 13 reciprocate, the guide column 13 drives the guide ring 12 to make the vibration mold base 11 vibrate up and down. The design of the top height of the elliptical surround being lower than the lower wall height of the adjacent upper mold base 3 ensures sufficient vibration space for the vibration mold base 11. When the vibration mold base 11 vibrates, it can directly vibrate and demold and separate the runner iron in each L-shaped runner 5 and the straight runner 10, thereby improving the processing efficiency.

[0039] Embodiment 7, based on the above embodiment, provides a brake disc casting method, comprising the following steps: S1. After the top mold base 4 is pressed and fixed, molten iron is poured in through the sprue 10, and flows into each brake disc cavity 32 through the diversion cavity 21 and each L-shaped runner 5. After the molten iron is cooled, the used sand mold 2 is cleaned out through the sand cleaning port 14; S2, control the vibration component to run and provide each ventilation groove plate 6 and the vibration mold base 11 with a gradually increasing vibration force, the ventilation groove plate 6 and the brake disc are automatically and safely demolded based on the vibration force, and the runner iron is automatically separated from each L-shaped runner 5 and the straight runner 10 based on the vibration force, and the runner iron in each L-shaped runner 5 is broken at the gate and separated from the brake disc under the action of the vibration force and the avoidance action of the elastic sealing component, and is broken at the bend; S3, using the external cutting mechanism to cut off the runner iron at the bottom of each L-shaped runner 5 and the sprue 10 within the space occupied by the original sand mold 2 through the sand cleaning port 14 to separate them from each other, and then controlling the vibration component to drive each ventilation slot plate 6 to completely move out of the brake disc cavity 32; S4. Remove the top die base 4 and the upper die base 3 from top to bottom, and remove each brake disc at the same time.

[0040] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A brake disc stacking mold, comprising a bottom mold base (1), characterized in that: The inner wall of the bottom mold base (1) is slidably connected to a vibration mold base (11), a sand mold (2) is arranged in the middle of the vibration mold base (11), a sand cleaning port (14) is provided on the front side of the bottom mold base (1) and the vibration mold base (11), a diversion cavity (21) is provided at the bottom of the sand mold (2), a plurality of upper mold bases (3) are movably connected to the sand mold (2), a brake disc cavity (32) is provided at the upper end of the upper mold base (3), and a top mold base (4) is movably connected to the upper mold base (3) at the top; The middle edges of the upper mold base (3) and the top mold base (4) are both provided with an L-shaped runner (5) connected to the diversion cavity (21) and the brake disc cavity (32); the middle of the top mold base (4) is provided with a straight runner (10) that passes through the upper mold base (3) and is connected to the diversion cavity (21); an elastic sealing component is provided on the upper side of the L-shaped runner (5); a plurality of ventilation groove plates (6) in a circular array are slidably inserted at the edge of the brake disc cavity (32); and vibration components are provided on the left and right sides of the upper mold base (3) at the bottom, and the vibration components are used to adjust the demoulding of the ventilation groove plates (6) and the separation of the casting from the gate.

2. A brake disc stacking mold according to claim 1, characterized in that: An elliptical enclosure movably sleeved on the outside of the sand mold (2) is arranged in the middle of the vibration mold base (11), and the top height of the elliptical enclosure is lower than the height of the lower wall of the adjacent upper mold base (3). The edge of the vibration mold base (11) is threadedly connected to a guide ring (12) rotatably connected to the inner wall of the bottom mold base (1), and three guide pillars (13) are fixedly connected to the guide ring (12).

3. A brake disc stacking mold according to claim 2, characterized in that: The upper die seat (3) is fixedly connected to handles (31) on both left and right sides, and the upper die seat (3) at the bottom is movably overlapped on the edge of the bottom die seat (1).

4. A brake disc stacking mold according to claim 3, characterized in that: The L-shaped runners (5) are circumferentially arranged on the upper mold base (3) and the top mold base (4), and the number of the L-shaped runners (5) is three. The L-shaped runners (5) are offset and misaligned from bottom to top, and the top of the L-shaped runners (5) are horizontally inclined relative to the brake disc cavity (32).

5. The brake disc stacking mold according to claim 4, characterized in that: The elastic sealing component comprises an elastic ring (51) slidably connected to the middle cavity wall of the upper mold base (3) and the top mold base (4); a sealing plate (52) is fixedly connected to the bottom of the elastic ring (51) and is in active sealing contact with the top of the L-shaped runner (5); an elastic plate (53) is slidably engaged on the inner side of the sealing plate (52) and is in active sealing contact with the top of the L-shaped runner (5); the thickness of the elastic plate (53) is less than that of the sealing plate (52); and the upper mold base (3) and the top mold base (4) respectively have avoidance cavities corresponding to the sealing plate (52) and the elastic plate (53).

6. A brake disc stacking mold according to claim 5, characterized in that: The ventilation groove plate (6) is movably abutted against the inner wall of the middle part of the brake disc cavity (32); an inclined groove (61) is provided on the ventilation groove plate (6); an adjusting ring (62) is rotatably connected to the edge cavity wall of the upper mold base (3); a pin (63) is provided on the adjusting ring (62) and movably engaged with the inclined groove (61); three positioning columns (64) are fixedly connected to the upper wall of the adjusting ring (62); the upper and lower positioning columns (64) are movably plugged into each other, and the guide column (13) is movably plugged into the positioning column (64).

7. A brake disc stacking mold according to claim 6, characterized in that: The upper die seat (3) and the top die seat (4) are both provided with movable grooves corresponding to the positioning posts (64), and the positioning posts (64) are movably sleeved with positioning tension springs (65) fixedly connected to the inner wall of the movable grooves.

8. The brake disc stacking mold according to claim 7, characterized in that: The vibration components on both sides are arranged circumferentially, and the vibration components include a support rod (7) fixedly connected to the inner wall of one side of the handle (31) at the bottom, an adjustment cylinder (75) and a gear cylinder (71) meshing with the adjustment ring (62) are slidably clamped on the support rod (7), and teeth corresponding to the gear cylinder (71) are respectively arranged on both sides of the adjustment ring (62) at the bottom, and an avoidance groove is arranged at one end of the adjustment cylinder (75) away from the support rod (7) and a buffer spring (76) is fixedly connected therein, and the elastic force of the buffer spring (76) is greater than the elastic force of the positioning tension spring (65); The other side of the handle (31) is rotatably connected to a rotating shaft (8), the rotating shaft (8) being driven by a motor mounted on the outer wall of the handle (31), the rotating shaft (8) being movably sleeved with a vibration cylinder (81) movably engaged with the inner wall of the gear cylinder (71), the inner wall of the vibration cylinder (81) being provided with a curved annular groove (82) connected end to end, and the outer wall of the rotating shaft (8) being provided with a pin protrusion (83) movably engaged with the curved annular groove (82).

9. The brake disc stacking mold according to claim 8, characterized in that: The inner wall of the gear cylinder (71) is rotatably connected to an adjusting tube (72) sleeved on the outer periphery of the adjusting cylinder (75); an arc groove (73) is provided on the inner wall of the adjusting tube (72); a pin protrusion (77) movably engaged with the arc groove (73) is provided on the outer wall of the adjusting cylinder (75); a clamping plate (74) is fixedly connected to the bottom of the adjusting tube (72); and a swinging groove corresponding to the clamping plate (74) is provided on the bottom of the gear cylinder (71); Telescopic cylinders (9) are respectively installed on both sides of the upper die base (3) at the bottom, and the telescopic ends of the telescopic cylinders (9) are slidably connected to the side walls of the upper die base (3). The telescopic ends of the telescopic cylinders (9) are respectively fixedly connected to convex pillars 1 (91) and convex pillars 2 (92), and the convex pillars 1 (91) are slidably engaged with the clamping plate (74). The bottom of the adjusting ring (62) at the bottom is provided with a clamping groove that is movably engaged with the convex pillars 2 (92).

10. A method for casting a brake disc, using a brake disc stacking mold as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, after the top mold base (4) is pressed and fixed, molten iron is poured in through the sprue (10), and flows into each brake disc cavity (32) through the diversion cavity (21) and each L-shaped runner (5); after the molten iron is cooled, the used sand mold (2) is cleaned out through the sand cleaning port (14); S2, controlling the operation of the vibration component and providing each of the ventilation groove plates (6) and the vibration mold base (11) with a gradually increasing vibration force, the ventilation groove plates (6) and the brake disc are automatically and safely demolded based on the vibration force, and at the same time, the runner iron is automatically separated from each of the L-shaped runners (5) and the straight runner (10) based on the vibration force, and the runner iron in each of the L-shaped runners (5) cooperates with the avoidance action of the elastic sealing component under the action of the vibration force to break at the gate and separate from the brake disc, and also breaks at the bend; S3, using an external cutting mechanism to cut off the runner iron at the bottom of each L-shaped runner (5) and the straight runner (10) within the space originally occupied by the sand mold (2) through the sand cleaning port (14) to separate them from each other, and subsequently controlling the vibration component to drive each ventilation slot plate (6) to completely move out of the brake disc cavity (32); S4. Remove the top die base (4) and the upper die base (3) in sequence from top to bottom, and simultaneously remove each brake disc.

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