Efficient gear casting forming equipment

Abstract

The invention relates to the technical field of gear casting, in particular to efficient gear casting forming equipment which comprises a base and a molding sand cavity, the molding sand cavity is fixedly installed at the top of the base, a support is welded to the top of the base, a hydraulic machine is fixedly installed below the support, and an output shaft of the hydraulic machine is fixedly connected with a pressing frame. And a mold collecting cavity is fixedly installed below the pressing frame, and a sand pressing disc is rotationally installed on the outer side of the mold collecting cavity. Molding sand is stirred through the spiral stirring cylinder, the molding sand can be effectively and evenly distributed in the molding sand cavity, the problem that a sand core is loose after the sand pressing disc is pressed is solved, the sand core is crushed through rotation of the first tooth mold, the second tooth mold and the casting gear, and the situation that the next casting effect is affected by molding sand solidification is avoided; the spiral shifting cylinder is driven by the rotating shaft to revolve, compact molding sand is crushed, the molding sand in the molding sand cavity is mixed again in cooperation with rotation of the second tooth mold, and the utilization rate of the molding sand is increased.

Description

Technical Field

[0001] The invention relates to the technical field of gear casting, and in particular to a high-efficiency gear casting molding equipment. Background Art

[0002] Early gears were mostly made by hand or forged, with low precision and long processing cycle, which could not meet the needs of modern industry. With the continuous advancement of technology, the manufacturing process of gears has also evolved from simple to complex, from rough to precise. Gear casting, as an ancient and commonly used gear manufacturing process, has played an important role in this process. In short, the gear casting technology is to inject molten metal into the mold, wait for it to cool and solidify, and then take it out to obtain a gear with a specific shape and size. For example, a gear casting molding device in the publication number: CN116140550B, when in use, when the bottom of the upper mold base contacts the top of the annular sand pressing plate, the top of the gear mold fits with the bottom of the upper mold base, and then the upper mold is moved. Foundry sand is added into the seat, and then the pressure wheel rotates around the outer side of the annular sand pressing plate, so that the inner arc wall of the annular sand pressing plate continuously squeezes the foundry sand toward the outer side of the gear mold, so that the foundry sand squeezed by the annular sand pressing plate cooperates with the gear mold to form a gear casting molding cavity for casting. However, although the molding sand can be squeezed toward the gear mold by the eccentric rotation of the annular sand pressing plate, the extruded molding sand is not fixed, resulting in the eccentric rotation of the annular sand pressing plate, which can only play the role of gathering the molding sand, and cannot form the molding sand into a sand core. At the same time, the molding sand is still not limited during the casting process, which makes the molding sand loose during the casting process. After the thermal expansion of the molten metal, the molding sand cannot shape the molten metal, resulting in casting failure. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the background technology and to propose a high-efficiency gear casting molding equipment.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A high-efficiency gear casting and molding equipment comprises a base and a molding sand cavity, wherein the molding sand cavity is fixedly installed on the top of the base, a bracket is welded on the top of the base, a hydraulic press is fixedly installed below the bracket, a pressing frame is fixedly connected to the output shaft of the hydraulic press, a mold receiving cavity is fixedly installed below the pressing frame, a sand pressing disc is rotatably installed on the outside of the mold receiving cavity, the sand pressing disc is rotatably installed inside the molding sand cavity, a mounting hole 1 and a mounting hole 2 are opened on the top of the mold receiving cavity, a casting pipe and a discharge pipe are fixedly installed inside the mounting hole 1 and the mounting hole 2, respectively. The air pipe is provided, a motor 1 is fixedly installed on the top of the mold receiving cavity, a gear 1 is fixedly connected to the output shaft of the motor 1, a gear ring 2 is fixedly installed on the top of the sand pressing disc, the gear 1 and the gear ring 2 are meshed, a gear ring 1 is slidably installed on the outer side of the molding sand cavity, a slide plate is integrally formed on the bottom of the gear ring 1, a slide groove 1 is provided on the outer peripheral wall of the molding sand cavity, the slide plate is slidably installed inside the slide groove 1, the gear ring 1 is located above the sand pressing disc, a sand cavity chassis is movably installed inside the molding sand cavity, and the sand cavity chassis is located below the sand pressing disc.

[0006] In the above-mentioned high-efficiency gear casting molding equipment, the side wall of the sand pressing disc is provided with a plurality of evenly distributed sliding holes, a rotating shaft is movably installed inside the sliding hole, the rotating shaft is rotatably installed on the side wall of the sand chamber bottom plate, a gear three is fixedly installed on the top of the rotating shaft, the gear three is meshed with a gear ring one, a sand pressing cover is integrally formed at the bottom of the sand pressing disc, and the rotating shaft is located inside the sand pressing cover.

[0007] In the above-mentioned high-efficiency gear casting molding equipment, the side wall of the sand pressing cover is integrally formed with two support rods 1, the outer side of the rotating shaft is movably sleeved with a spiral dial, the spiral dial is located between the two support rods 1, a telescopic cylinder is slidably installed inside the spiral dial, the telescopic cylinder is located inside the sand pressing cover, and a plurality of evenly distributed springs 3 are provided between the inner wall of the spiral dial and the side wall of the rotating shaft.

[0008] In the above-mentioned high-efficiency gear casting molding equipment, the inner wall of the molding sand cavity is provided with a plurality of evenly distributed movable grooves, a convex tooth plate is movably installed inside the molding sand cavity, a rotating rod is integrally formed at the thin-walled end of the convex tooth plate, the rotating rod is rotatably installed on the side wall of the movable groove, and a spring is provided between the side wall of the convex tooth plate and the movable groove.

[0009] In the above-mentioned high-efficiency gear casting molding equipment, a tooth mold 2 is movably installed inside the mold receiving cavity, and an electric push rod 2 is provided between the mold receiving cavity and the tooth mold 2. A rotating disk is rotatably installed at the bottom of the base, and a sliding bracket is slidably installed below the rotating disk. A tray 1 is fixedly installed above the sliding bracket, and a tooth mold 1 is integrally formed on the top of the tray 1. The tooth mold 2 is located above the tooth mold 1, and an electric push rod 1 is fixedly installed on the side wall of the base leg, and the electric push rod 1 is located below the rotating disk.

[0010] In the above-mentioned high-efficiency gear casting molding equipment, a shaft rod is slidably installed inside the tooth mold 2, a square rod is integrally formed at the bottom of the shaft rod, a square hole is opened on the side wall of the tooth mold 1, the square rod is slidably installed inside the square hole, a locking groove is opened at the bottom of the square rod, a spring locking block is movably installed inside the square hole, and the spring locking block is slidably installed on the outside of the locking groove.

[0011] In the above-mentioned high-efficiency gear casting and molding equipment, a second motor is fixedly installed at the bottom of the base, and a second gear is fixedly connected to the output shaft of the second motor. A tooth surface is integrally formed on the side wall of the rotating disk, and the tooth surface is meshed with the second gear. A sliding rod is integrally formed on the bottom of the rotating disk, and a sliding hole is provided on the side wall of the sliding bracket. The sliding hole is slidably installed on the outside of the sliding rod, and a second spring is provided between the bottom of the rotating disk and the top of the sliding bracket.

[0012] In the above-mentioned high-efficiency gear casting and molding equipment, a scraping ring is rotatably installed inside the mold cavity, and the second tooth mold is slidably inserted into the interior of the scraping ring. A casting hole and an exhaust hole are opened inside the second tooth mold, and the casting hole and the casting pipe are connected to each other, and the exhaust hole and the exhaust pipe are connected to each other. A tooth mold sleeve ring is rotatably installed inside the sand cavity chassis, and the tooth mold sleeve ring is slidably mounted on the outside of the first tooth mold.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. The present invention cooperates between the sand pressing disc and the spiral dial. When the sand pressing disc drives the gear ring 1 to move downward, the motor 1 is started, so that the sand pressing disc drives the rotating shaft to rotate, and the rotating shaft drives the spiral dial to revolve. The molding sand inside the molding sand cavity is moved by the revolution of the spiral dial, so that the molding sand is evenly distributed inside the molding sand cavity. During the revolution of the spiral dial, the gear 3 and the gear ring 1 are meshed with each other, so that the spiral dial rotates on itself, thereby improving the uniformity of the molding sand inside the molding sand cavity. The molding sand can be effectively evenly distributed inside the molding sand cavity by the movement of the spiral dial on the molding sand, thereby avoiding the problem of loose sand core after the sand pressing disc is compressed.

[0015] 2. The present invention cooperates between the rotating disk and the tooth mold 2. When the tooth mold 2 moves downward to discharge the cast gear, the motor 2 is started and drives the rotating disk to rotate. The rotating disk drives the sliding bracket to rotate. The sliding bracket drives the tray 1 to rotate. The tray 1 drives the shaft rod and the tooth mold 2 to rotate through the square hole and the square rod, so that the tooth mold 2 and the tooth mold 1 drive the cast gear to rotate. During the rotation of the tooth mold 1, the tooth mold 2 and the cast gear, the sand core is broken to prevent the solidification of the molding sand from affecting the effect of the next casting.

[0016] 3. The present invention cooperates between the convex tooth plate and the spiral dial. When the tooth mold 2 moves downward to discharge the cast gear, the motor is started, so that the sand pressing plate drives the rotating shaft to rotate, and the rotating shaft drives the spiral dial to revolve, thereby breaking the compacted molding sand, and cooperating with the rotation of the tooth mold 2 to mix the molding sand inside the molding sand cavity again, thereby improving the utilization rate of the molding sand. During the revolution of the spiral dial, the convex tooth plate resists the spiral dial, causing the spiral dial to move toward the direction of the tooth mold 2, thereby improving the effect of the spiral dial on breaking the molding sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0019] Figure 3 For the present invention Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 For the present invention Figure 2 The enlarged schematic diagram of point B in the middle;

[0021] Figure 5 It is a partial structural cross-sectional view of the base in the present invention;

[0022] Figure 6 It is a structural cross-sectional view of the medium-sized sand cavity of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the convex tooth plate in the present invention;

[0024] Figure 8 It is a disassembly schematic diagram of the medium-sized sand cavity, the sand pressing plate and the mold closing cavity of the present invention;

[0025] Fig. 9 It is a disassembly schematic diagram of the rotating disk, the tray 1 and the tooth mold 2 in the present invention;

[0026] Fig.10 It is a disassembly schematic diagram of the rotating shaft and the spiral dial in the present invention.

[0027] In the figure: 1, base; 11, sand cavity; 111, gear ring 1; 112, convex tooth plate; 113, movable groove; 114, slide groove 1; 115, slide plate; 116, spring 1; 117, rotating rod; 12, sand pressing plate; 121, gear ring 2; 122, sand pressing cover; 123, support rod 1; 124, sliding hole; 131, casting pipe; 132, hydraulic press; 133, electric push rod 1; 134, pressure frame; 135, exhaust pipe; 136, bracket; 14, mold cavity; 141, electric push rod 2; 142, motor 1; 143, gear 1; 144, sand scraping ring; 145, mounting hole 1; 1 46. ​​Mounting hole 2; 21. Rotating plate; 211. Sliding rod 1; 212. Motor 2; 213. Gear 2; 214. Tooth surface; 22. Tray 1; 221. Sliding bracket; 222. Spring 2; 223. Sliding hole 1; 224. Tooth mold 1; 225. Square hole; 231. Tooth mold 2; 232. Shaft rod; 233. Square rod; 234. Locking groove; 235. Spring locking block; 236. Exhaust hole; 237. Casting hole; 241. Rotating shaft; 242. Gear 3; 243. Screw cylinder; 244. Telescopic cylinder; 245. Spring 3; 251. Sand cavity bottom plate; 252. Tooth mold sleeve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Reference Figure 1 - Fig.10As shown, a high-efficiency gear casting molding equipment includes a base 1 and a molding sand cavity 11, the molding sand cavity 11 is fixedly installed on the top of the base 1, a bracket 136 is welded on the top of the base 1, a hydraulic press 132 is fixedly installed below the bracket 136, the output shaft of the hydraulic press 132 is fixedly connected to a pressing frame 134, a mold receiving cavity 14 is fixedly installed below the pressing frame 134, a sand pressing disc 12 is rotatably installed on the outer side of the mold receiving cavity 14, the sand pressing disc 12 is rotatably installed inside the molding sand cavity 11, a mounting hole 145 and a mounting hole 2 146 are opened on the top of the mold receiving cavity 14, and a casting pipe 131 and an exhaust pipe are fixedly installed inside the mounting hole 145 and the mounting hole 2 146, respectively. 135, a motor 142 is fixedly installed on the top of the mold cavity 14, and a gear 143 is fixedly connected to the output shaft of the motor 142, a gear ring 121 is fixedly installed on the top of the sand pressing disc 12, the gear 143 and the gear ring 121 are meshed, a gear ring 111 is slidably installed on the outer side of the molding sand cavity 11, and a slide plate 115 is integrally formed at the bottom of the gear ring 111, a slide groove 114 is opened on the outer peripheral wall of the molding sand cavity 11, and the slide plate 115 is slidably installed inside the slide groove 114, the gear ring 111 is located above the sand pressing disc 12, and a sand cavity chassis 251 is movably installed inside the molding sand cavity 11, and the sand cavity chassis 251 is located below the sand pressing disc 12.

[0031] Among them, the working principle of the sand pressing disc 12 is as follows: when the hydraulic press 132 drives the mold receiving cavity 14 to move upward, the mold receiving cavity 14 drives the sand pressing disc 12 to move upward, and after the side wall of the sand pressing disc 12 hits the bottom of the gear ring 111, the gear ring 111 follows the sand pressing disc 12 to move upward; when the hydraulic press 132 drives the mold receiving cavity 14 to move downward, the sand pressing disc 12 follows the mold receiving cavity 14 to move downward, and at the same time, the motor 142 is started, so that the gear 143 and the gear ring 121 are meshed with each other, and the sand pressing disc 12 rotates during the downward movement and drives the gear ring 111 to move downward; when the molding sand cavity 11 hits the bottom of the gear ring 111, the motor 142 is turned off, the sand pressing disc 12 stops rotating, and the mold receiving cavity 14 drives the sand pressing disc 12 to continue to move toward the sand cavity bottom plate 251, so that the molding sand between the sand pressing disc 12 and the sand cavity bottom plate 251 is compacted.

[0032] like Figure 2 , Figure 3 , Figure 8 and Fig.10As shown, the side wall of the sand pressing disc 12 is provided with a plurality of evenly distributed sliding holes 124, and a rotating shaft 241 is movably installed inside the sliding hole 124, and the rotating shaft 241 is rotatably installed on the side wall of the sand chamber bottom plate 251, and a gear three 242 is fixedly installed on the top of the rotating shaft 241, and the gear three 242 is meshed with the gear ring 111, and a sand pressing cover 122 is integrally formed at the bottom of the sand pressing disc 12, and the rotating shaft 241 is located inside the sand pressing cover 122, and a telescopic cylinder 244 is slidably installed inside the spiral dial cylinder 243, and the telescopic cylinder 244 is located inside the sand pressing cover 122.

[0033] Among them, the working principle of the spiral dial 243 is as follows: when the sand pressing plate 12 drives the gear ring 111 to move downward and rotate, the sand pressing plate 12 drives the rotating shaft 241 to rotate, so that the rotating shaft 241 drives the spiral dial 243 to revolve. During the revolution of the spiral dial 243, the molding sand inside the molding sand cavity 11 is moved, so that the molding sand is evenly distributed inside the molding sand cavity 11. When the sand pressing plate 12 drives the rotating shaft 241 to rotate, the rotating shaft 241 drives the gear three 242 to move around the gear ring 111. During the movement of the gear three 242, the gear three 242 and the gear ring 111 are meshed with each other, so that the spiral dial 243 rotates on its own, thereby preventing the molding sand between the two spiral dials 243 from moving with the spiral dial 243 when the spiral dial 243 moves the molding sand inside the molding sand cavity 11, and at the same time improving the uniformity of the molding sand inside the molding sand cavity 11.

[0034] Further references Figure 2 and Figure 8 To explain, the working principle of the sand pressing cover 122 is: when the mold cavity 14 drives the sand pressing plate 12 to move toward the sand cavity bottom plate 251, so that the molding sand between the sand pressing plate 12 and the sand cavity bottom plate 251 is compacted, the sand pressing plate 12 drives the sand pressing cover 122 to move toward the sand cavity bottom plate 251, so that the sand pressing cover 122 compacts the molding sand on the side wall of the spiral cylinder 243, thereby preventing the molding sand around the spiral cylinder 243 from becoming loose, which would cause the sand core to be damaged after the sand core expands during the casting process.

[0035] like Figure 1 , Figure 2 , Figure 5 , Figure 6 and Fig. 9 As shown, a tooth mold 231 is movably installed inside the mold receiving cavity 14, and an electric push rod 2 141 is provided between the mold receiving cavity 14 and the tooth mold 231. A rotating disk 21 is rotatably installed at the bottom of the base 1, and a sliding bracket 221 is slidably installed below the rotating disk 21. A tray 22 is fixedly installed above the sliding bracket 221, and a tooth mold 224 is integrally formed on the top of the tray 22. The tooth mold 231 is located above the tooth mold 224, and an electric push rod 133 is fixedly installed on the side wall of the leg of the base 1, and the electric push rod 133 is located below the rotating disk 21.

[0036] like Figure 4 and Fig. 9 As shown, a shaft rod 232 is slidably installed inside the tooth mold 231, and a square rod 233 is integrally formed at the bottom of the shaft rod 232. A square hole 225 is provided on the side wall of the tooth mold 1 224. The square rod 233 is slidably installed inside the square hole 225. A locking groove 234 is provided at the bottom of the square rod 233. A spring locking block 235 is movably installed inside the square hole 225, and the spring locking block 235 is slidably installed on the outside of the locking groove 234.

[0037] Among them, the working principle of the tooth mold 231 and the shaft rod 232 is: when the sand pressing plate 12 compacts the molding sand inside the molding sand cavity 11, the electric push rod 231 drives the tooth mold 231 to move upward. During the upward movement of the tooth mold 231, the spring locking block 235 is located inside the locking groove 234, and the shaft rod 232 is locked, so that the shaft rod 232 slides inside the tooth mold 231. After the tooth mold 231 moves upward, there is a sand core between the tooth mold 1 224 and the tooth mold 231. After pouring molten metal into the casting tube 131, the molten metal flows into the sand core for casting. When the molten metal solidifies, a cast gear is formed. The electric push rod 241 drives the tooth mold 231 to move downward, and the tooth mold 231 contacts the cast gear. Wheel, so that the casting gear drives tray 1 22 to move downward. When tray 1 22 moves to the bottom, electric push rod 2 141 drives tooth mold 2 231 to return to its position. When shaft rod 232 slides to the bottom of tooth mold 231, tooth mold 231 drives shaft rod 232 to move upward. Spring locking block 235 slides out of locking groove 234. Shaft rod 232 is unlocked and moves upward with tooth mold 231. When tooth mold 231 returns to its position, electric push rod 1 133 is started. Electric push rod 1 133 pushes the casting gear above tray 1 22 and returns it to its position. At this time, tray 1 22 returns to its position. During the return process, the bottom of square hole 225 contacts square rod 233, so that square rod 233 drives shaft rod 232 to slide upward and return to its position.

[0038] like Figure 3 , Figure 5 and Fig. 9 As shown, a second motor 212 is fixedly installed at the bottom of the base 1, and a second gear 213 is fixedly connected to the output shaft of the second motor 212. A tooth surface 214 is integrally formed on the side wall of the rotating disk 21, and the tooth surface 214 is meshed with the second gear 213. A sliding rod 211 is integrally formed at the bottom of the rotating disk 21, and a sliding hole 223 is provided on the side wall of the sliding bracket 221. The sliding hole 223 is slidably installed on the outer side of the sliding rod 211, and a spring 222 is provided between the bottom of the rotating disk 21 and the top of the sliding bracket 221.

[0039] Among them, the working principle of the rotating disk 21 is: when the electric push rod 2 141 drives the tooth mold 2 231 to move downward to discharge the cast gear, the motor 212 is started, the gear 213 and the tooth surface 214 are meshed with each other, and the rotating disk 21 drives the sliding bracket 221 to rotate, and the sliding bracket 221 drives the tray 1 22 to rotate, and the tray 1 22 drives the shaft rod 232 and the tooth mold 2 231 to rotate through the square hole 225 and the square rod 233, so that the tooth mold 2 231 and the tooth mold 1 224 drive the casting gear to rotate, and in the process of the rotation of the tooth mold 1 224, the tooth mold 2 231 and the casting gear, the sand core is broken.

[0040] like Figure 5-Figure 8 As shown, the inner wall of the molding sand cavity 11 is provided with a plurality of evenly distributed movable grooves 113, a convex tooth plate 112 is movably installed inside the molding sand cavity 11, a rotating rod 117 is integrally formed at the thin-walled end of the convex tooth plate 112, the rotating rod 117 is rotatably installed on the side wall of the movable groove 113, a spring 116 is provided between the side wall of the convex tooth plate 112 and the movable groove 113, two support rods 123 are integrally formed on the side wall of the sand pressing cover 122, a spiral dial 243 is movably sleeved on the outer side of the rotating shaft 241, the spiral dial 243 is located between the two support rods 123, and a plurality of evenly distributed springs 3 245 are provided between the inner wall of the spiral dial 243 and the side wall of the rotating shaft 241.

[0041] Among them, the working principle of the convex tooth plate 112 is: when the electric push rod 141 drives the tooth mold 231 to move downward to discharge the casting gear, the hydraulic press 132 drives the sand pressing plate 12 to move upward for a distance, and after increasing the distance between the sand cavity bottom plate 251 and the sand pressing plate 12, the motor 142 is started, and the sand pressing plate 12 drives the rotating shaft 241 to rotate, and the rotating shaft 241 drives the spiral dial 243 to revolve, so as to crush the compacted molding sand, and cooperate with the rotation of the tooth mold 1 224, the tooth mold 231 and the casting gear to mix the molding sand inside the molding sand cavity 11 again, so as to improve the utilization rate of the molding sand. In the process of the spiral dial 243 revolving, the convex tooth plate 112 resists the spiral dial 243, so that the spiral dial 243 moves toward the tooth mold 231, so as to improve the effect of the spiral dial 243 on crushing the molding sand.

[0042] Further references Figure 6 and Figure 8 To explain, the working principle of the support rod 123 is as follows: when the screw cylinder 243 moves toward the direction of the tooth mold 231, the support rod 123 contacts the molding sand on the side wall of the screw cylinder 243, so that the screw cylinder 243 returns to its original position through the spring 3 245, and the rotation direction of the tooth mold 231 is opposite to the direction of the revolution of the screw cylinder 243.

[0043] like Figure 3 and Fig. 9As shown, a scraping ring 144 is rotatably installed inside the mold cavity 14, and the tooth mold 231 is slidably inserted into the interior of the scraping ring 144. A casting hole 237 and an exhaust hole 236 are opened inside the tooth mold 231. The casting hole 237 and the casting tube 131 are connected to each other, and the exhaust hole 236 and the exhaust pipe 135 are connected to each other. A tooth mold ring 252 is rotatably installed inside the sand cavity bottom plate 251, and the tooth mold ring 252 is slidably mounted on the outer side of the tooth mold 1 224.

[0044] Among them, the working principles of the scraper ring 144 and the tooth mold ring 252 are: when the tooth mold 231 moves upward, the scraper ring 144 scrapes off the molding sand on the side wall of the tooth mold 231, so that the sand core is intact after the tooth mold 231 moves, thereby improving the integrity of the sand core; when the tooth mold 231 moves downward, the tooth mold 231 contacts the casting gear, and the casting gear drives the tray 1 22 to move downward, and the tooth mold ring 252 slides over the tooth mold 1 224, the casting gear and the side wall of the tooth mold 231 in turn, so that the discharge of the casting gear will not affect the molding sand inside the molding sand cavity 11, and there is no need to refill the molding sand inside the molding sand cavity 11.

[0045] The specific working principle and use method of the present invention are explained in detail below: After the molding sand is manually filled into the molding sand cavity 11, the hydraulic press 132 is started, and the hydraulic press 132 drives the mold receiving cavity 14 to move downward, and the sand pressing disc 12 drives the gear ring 111 to follow the mold receiving cavity 14 to move downward. During the downward movement of the sand pressing disc 12, the motor 142 is started, so that the sand pressing disc 12 rotates, and the sand pressing disc 12 drives the spiral dial 243 to revolve. During the revolution of the spiral dial 243, the gear 3 242 and the gear ring 111 are meshed with each other, so that the spiral dial 243 rotates. When the molding sand cavity 11 hits the bottom of the gear ring 111, the motor 142 is turned off, and the sand pressing disc 12 continues to move downward. Move, when the sand pressing plate 12 compacts the sand inside the sand cavity 11, the hydraulic press 132 is closed, the electric push rod 2 141 is started, and the tooth mold 2 231 moves upward to the thickness of the casting gear for casting. When the cast metal liquid solidifies, the electric push rod 2 141 is started, and the tooth mold 2 231 contacts the casting gear, so that the casting gear moves out of the sand cavity 11. In the process of moving the casting gear, the tooth mold 1 224, the tooth mold 2 231 and the casting gear are reversed, and the sand pressing plate 12 drives the spiral dial 243 to rotate forward, so that the sand core is broken and remixed. When the casting gear is discharged, the tooth mold 2 231 and the tooth mold 1 224 return to their positions, and the sand pressing plate 12 squeezes the sand again to make the sand compact again for continuous casting.

[0046] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An efficient gear casting device, comprising a base (1) and a sand cavity (11), characterized in that: The molding sand cavity (11) is fixedly mounted on the top of the base (1); a bracket (136) is welded on the top of the base (1); a hydraulic press (132) is fixedly mounted below the bracket (136); an output shaft of the hydraulic press (132) is fixedly connected to a pressing frame (134); a mold receiving cavity (14) is fixedly mounted below the pressing frame (134); a sand pressing disc (12) is rotatably mounted on the outer side of the mold receiving cavity (14); the sand pressing disc (12) is rotatably mounted inside the molding sand cavity (11); a mounting hole 1 (145) and a mounting hole 2 (146) are opened on the top of the mold receiving cavity (14); a casting pipe (131) and an exhaust pipe (135) are fixedly mounted inside the mounting hole 1 (145) and the mounting hole 2 (146), respectively; the top of the mold receiving cavity (14) is fixedly mounted on the outer side of the mold receiving cavity (14); a casting pipe (131) and an exhaust pipe (135) are fixedly mounted inside the mounting hole 1 (145) and the mounting hole 2 (146), respectively; A motor (142) is fixedly installed, and the output shaft of the motor (142) is fixedly connected to a gear (143). A gear ring (121) is fixedly installed on the top of the sand pressing disc (12), and the gear (143) and the gear ring (121) are meshed. A gear ring (111) is slidably installed on the outer side of the molding sand cavity (11), and a slide plate (115) is integrally formed at the bottom of the gear ring (111). A slide groove (114) is opened on the outer peripheral wall of the molding sand cavity (11), and the slide plate (115) is slidably installed inside the slide groove (114). The gear ring (111) is located above the sand pressing disc (12), and a sand cavity chassis (251) is movably installed inside the molding sand cavity (11), and the sand cavity chassis (251) is located below the sand pressing disc (12).

2. According to claim 1, a high-efficiency gear casting molding equipment, characterized in that: The side wall of the sand pressing disc (12) is provided with a plurality of evenly distributed sliding holes (124), a rotating shaft (241) is movably installed inside the sliding hole (124), the rotating shaft (241) is rotatably installed on the side wall of the sand chamber bottom plate (251), a gear three (242) is fixedly installed on the top of the rotating shaft (241), the gear three (242) is meshed with a gear ring one (111), a sand pressing cover (122) is integrally formed at the bottom of the sand pressing disc (12), and the rotating shaft (241) is located inside the sand pressing cover (122).

3. According to claim 2, a high-efficiency gear casting molding equipment, characterized in that: The side wall of the sand pressing cover (122) is integrally formed with two support rods (123); a spiral dial (243) is movably sleeved on the outer side of the rotating shaft (241); the spiral dial (243) is located between the two support rods (123); a telescopic cylinder (244) is slidably installed inside the spiral dial (243); the telescopic cylinder (244) is located inside the sand pressing cover (122); and a plurality of evenly distributed springs (245) are provided between the inner wall of the spiral dial (243) and the side wall of the rotating shaft (241).

4. According to claim 1, a high-efficiency gear casting molding equipment, characterized in that: The inner wall of the molding sand cavity (11) is provided with a plurality of evenly distributed movable grooves (113); a convex tooth plate (112) is movably installed inside the molding sand cavity (11); a rotating rod (117) is integrally formed at the thin-wall end of the convex tooth plate (112); the rotating rod (117) is rotatably installed on the side wall of the movable groove (113); and a spring (116) is provided between the side wall of the convex tooth plate (112) and the movable groove (113).

5. The high-efficiency gear casting equipment according to claim 1, characterized in that: A tooth mold 2 (231) is movably installed inside the mold receiving cavity (14), and an electric push rod 2 (141) is provided between the mold receiving cavity (14) and the tooth mold 2 (231). A rotating disk (21) is rotatably installed at the bottom of the base (1), and a sliding bracket (221) is slidably installed below the rotating disk (21). A tray 1 (22) is fixedly installed above the sliding bracket (221), and a tooth mold 1 (224) is integrally formed on the top of the tray 1 (22). The tooth mold 2 (231) is located above the tooth mold 1 (224), and an electric push rod 1 (133) is fixedly installed on the side wall of the base (1) support leg, and the electric push rod 1 (133) is located below the rotating disk (21).

6. The high-efficiency gear casting equipment according to claim 5, characterized in that: A shaft rod (232) is slidably mounted inside the tooth mold (231), a square rod (233) is integrally formed at the bottom of the shaft rod (232), a square hole (225) is provided on the side wall of the tooth mold (224), the square rod (233) is slidably mounted inside the square hole (225), a locking groove (234) is provided at the bottom of the square rod (233), a spring locking block (235) is movably mounted inside the square hole (225), and the spring locking block (235) is slidably mounted on the outside of the locking groove (234).

7. The high-efficiency gear casting equipment according to claim 5, characterized in that: A second motor (212) is fixedly mounted on the bottom of the base (1); the output shaft of the second motor (212) is fixedly connected to a second gear (213); a tooth surface (214) is integrally formed on the side wall of the rotating disk (21); the tooth surface (214) and the second gear (213) are meshed; a sliding rod (211) is integrally formed on the bottom of the rotating disk (21); a sliding hole (223) is provided on the side wall of the sliding bracket (221); the sliding hole (223) is slidably mounted on the outer side of the sliding rod (211); and a second spring (222) is provided between the bottom of the rotating disk (21) and the top of the sliding bracket (221).

8. The high-efficiency gear casting equipment according to claim 5, characterized in that: A scraping ring (144) is rotatably mounted inside the mold receiving cavity (14); the second tooth mold (231) is slidably inserted into the interior of the scraping ring (144); a casting hole (237) and an exhaust hole (236) are provided inside the second tooth mold (231); the casting hole (237) and the casting pipe (131) are communicated with each other; the exhaust hole (236) and the exhaust pipe (135) are communicated with each other; a tooth mold sleeve ring (252) is rotatably mounted inside the sand cavity bottom plate (251); the tooth mold sleeve ring (252) is slidably mounted on the outer side of the first tooth mold (224).

Images