Automatic casting production line and production method thereof

Abstract

The invention discloses an automatic casting production line and a production method thereof, and belongs to the technical field of grinding ball casting. The ball falling device comprises an oscillating ball falling machine and a grinding assembly, the grinding assembly is arranged in the middle of the inner side of the separating mechanism in a liftable mode and used for grinding and stripping a sprue cast ball string on the oscillating ball falling machine into a sprue rod and a cast ball, and the cast ball and the sprue rod separated through the method are shallow in stubble, separated in place and not prone to generating scrap iron; meanwhile, cast balls on the sprue rod can be fully separated, the cast balls are prevented from being damaged due to repeated impact, the sprue rod is prevented from being broken due to repeated impact, and fragments similar to the cast balls in size are prevented from being generated, so that the sand separating and screening process is simplified and accelerated, the overall production efficiency is improved, the surfaces of the cast balls are protected, and the service life of the cast balls is prolonged. And the cast balls are prevented from being damaged in the machining process, and the yield of cast ball production is increased.

Description

Technical Field

[0001] The invention relates to the technical field of grinding ball casting, in particular to an automatic casting production line and a production method thereof. Background Art

[0002] Casting molding is the process of melting molten iron, pouring it into a molding device through a mechanical device, and cooling it for a certain period of time before molding. At present, in the wear-resistant cast ball and casting segment production industry, due to various reasons, most wear-resistant cast ball and casting segment production companies have casting sand scattered on the ground during the production process, and some companies even cast directly on the ground, seriously polluting the environment.

[0003] The application document with publication number CN103934448A discloses a casting production line, including a molding line, a casting line, a first motorized conveyor roller line, a second motorized conveyor roller line, a first reversing machine, a first box pusher, a second reversing machine, a second box pusher, a third reversing machine, a third box pusher, a fourth reversing machine and a fourth box pusher; the first motorized conveyor roller line is connected between the output end of the molding line and the input end of the casting line, and can convey the sand box to the casting line; the second motorized conveyor roller line is connected between the output end of the casting line and the input end of the molding line.

[0004] According to the above patents and the prior art, the prior art often simply uses rollers for separation when separating cast ball products, resulting in the cast balls and the gate rod being constantly impacted during the separation process, generating metal chips, which in turn causes the screened sand to be unable to quickly participate in the production cycle, resulting in higher production costs and production hours. During screening, the prior art only improves the oscillating screening equipment for gravel to avoid equipment blockage, but does not improve the problem of cast balls clogging the equipment. When obtaining cast balls, the prior art often cannot completely separate the cast balls from the gate rod, and manual inspection is still required. In addition, when separating the cast balls, there are more metal chips between the cast balls, resulting in cumbersome processing steps and low yield rate. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems and shortcomings and provide an automated casting production line and a production method thereof, thereby improving overall work efficiency.

[0006] The present invention solves at least one of the following technical problems:

[0007] (1) In the prior art, when separating cast ball products, rollers are often simply used for separation, which causes the cast balls and the gate rods to be constantly impacted during the separation process, generating metal chips. This in turn causes the screened sand to be unable to quickly participate in the production cycle, resulting in higher production costs and production hours;

[0008] (2) The prior art only improved the oscillating screening equipment for gravel during screening to avoid equipment clogging, but did not improve the problem of cast balls clogging the equipment;

[0009] (3) When obtaining the cast ball, the existing technology often cannot completely separate the cast ball from the gate rod, and manual inspection is still required. In addition, when the cast ball is separated, there are many metal chips between the cast balls, which leads to cumbersome processing steps and low yield rate.

[0010] The purpose of the present invention can be achieved through the following technical solution: an automated casting production line, comprising:

[0011] separation institutions;

[0012] The ball dropper includes an oscillating ball dropper and a grinding assembly. The grinding assembly is arranged in the middle of the inner side of the separation mechanism in a liftable manner, and the grinding assembly is used to grind and peel the gate cast ball string on the oscillating ball dropper into gate rods and cast balls.

[0013] Preferably, a sand mold conveyor is provided at the input end of the separation mechanism, a casting machine is provided just above the middle of the sand mold conveyor, and a molding machine is provided at the input end of the sand mold conveyor, a sand screening conveyor is provided on one side of the molding machine, and a return sand conveyor is provided at the output end of the separation mechanism, the return sand conveyor is connected to the input end of the sand screening conveyor, and the sand screening conveyor is connected to the input end of the molding machine.

[0014] Preferably, the separation mechanism includes a working box, a ball dropper is arranged in the middle of the inner side of the working box, a sand dropper is provided above the ball dropper, a sand presser is provided above the sand dropper, and a posture adjustment box is installed on one side of the sand dropper and the ball dropper.

[0015] The top of the air duct is connected with the air filter press, and the bottom of the air duct is connected with the air filter press, and the bottom of the air duct is connected with the air filter press.

[0016] The transmission gear of the present invention is a gear which is connected with the gear of the driven gear of the driven gear. The gear of the driven gear is connected with the gear of the driven gear to the upper and lower surfaces of the driving gear of the driving gear. The driving gear of the driven gear is connected with the gear of the driven gear to the upper and lower surfaces of the driving gear.

[0017] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket.

[0018] Preferably, positioning spring rods are fixedly connected to the end faces of both ends of the grinding cross bar, and V-shaped spring leaves are installed on the telescopic ends of the positioning spring rods. First baffles are installed between the two V-shaped spring leaves and on both sides of the grinding cross bar. The grinding tips on each side are movable through the corresponding first baffles and are slidably connected to them. When stationary, only the tip of the grinding tip extends out of the through hole of the first baffle.

[0019] Preferably, the sand press includes a sand pressing push rod, a sand pressing plate is installed at the lower end of the telescopic end of the sand pressing push rod, a plurality of crushing needle rods evenly distributed in an array are installed on the lower surface of the sand pressing plate, and reset springs are installed at the four corners of the lower surface of the sand pressing plate. The lower end of each reset spring is commonly installed with a second baffle, and the crushing needle rod moves through the second baffle, and the lower end of the crushing needle rod extends out of the second baffle when stationary.

[0020] Preferably, the posture adjustment box includes a positioning box body, a feed ramp is embedded in the upper part of the positioning box body, a blanking port is provided on the side of the feed ramp close to the positioning box body, a blanking ramp is embedded in the lower part of the positioning box body, an oscillator is provided at the bottom of the positioning box body, a number of human-shaped guide plates evenly distributed in a diamond array are provided in the positioning box body and between the blanking port and the blanking ramp, and a number of guide ramps evenly distributed in an array are provided on both sides of the inner wall of the positioning box body.

[0021] A production method of an automated casting production line comprises the following steps:

[0022] Step 1: Sand is fed into the molding machine through the sand screening conveyor, and the molding machine produces a continuous casting sand mold. The sand mold conveyor conveys the continuous casting sand mold to the separation mechanism;

[0023] Step 2: The sand is separated from the casting ball string by the vibration of the sand shaker, and the sand press continuously squeezes and crushes each string of sand casting molds;

[0024] Step 3: The sand dropper transports the separated cast ball string to the attitude adjustment box, aligns the axis of the cast ball string with the diversion direction of the ball dropper, and then guides it to the ball dropper;

[0025] Step 4: Separate the casting balls from the gate rods through the grinding assembly, and use the oscillating ball dropper to screen out the casting balls and gate rods respectively and collect them separately;

[0026] Step 5: The sand is fed into the sand screening conveyor through the sand return conveyor to complete the entire ball casting production process.

[0027] Beneficial effects of the present invention:

[0028] (1) When the sand shaker is working, the oscillating sand shaker oscillates and screens the sand mold and casting, and screens out the sand and drops it on the sand drop hopper, thereby avoiding the generation of iron chips when the casting is separated, and reducing the iron chip content of the screened sand, so that the sand can be quickly and directly used to make sand molds again or be simply and quickly screened and reused, thereby improving work efficiency. During screening, the first slide moves the first telescopic rod, the first slider, the air guide diversion pipe and the blow box installed together back and forth, and at the same time, the blow nozzle in the blow box blows air to the screen mesh slot of the oscillating sand shaker to prevent the gravel from clogging the screen, thereby ensuring that the sand can be quickly and fully separated from the casting and fall on the sand drop hopper, so that the sand shaker can be quickly separated when the sand mold and casting move a limited distance, and obtain sand that can be reused without screening or simply screened, thereby saving the cost and time for magnetic separation and sand screening, and improving production efficiency;

[0029] (2) When the ball dropper is working, the oscillating ball dropper separates the cast ball from the gate rod, and the cast ball passes through the screen of the oscillating ball dropper and falls into the ball dropper bucket. The second telescopic rod moves back and forth through the second slide, driving the installation box to move back and forth. The push motor in the installation box drives the connecting rod mechanism composed of the first swing rod and the second swing rod to swing back and forth and extend and retract, and is limited by the limit slot, so that each push rod reciprocates and retracts along the axial direction, constantly knocking the cast ball blocked in the hole slot of the screen of the push oscillating ball dropper, preventing the cast ball from blocking the hole slot, improving the cast ball separation efficiency, and reducing the size and weight of the oscillating ball dropper, thereby saving money and improving efficiency;

[0030] (3) When the grinding assembly is working, the supporting push rod moves down each working box, so that the lower surface of the first baffle abuts against the upper surface of the screen of the oscillating ball drop machine, and then the oscillating ball drop machine oscillates to drive each gate rod to move. When the gate rod moves between adjacent grinding cross bars, the grinding motor drives the crankshaft connecting rod to rotate through the first bevel gear and the second bevel gear, so that the grinding cross bar performs a circular motion in a posture parallel to the moving direction of the gate rod, so that the adjacent grinding cross bars continuously move relative to each other and continuously approach and move away, so that each row of grinding tips grinds the cast balls that have not yet been separated on both sides of the gate rod, and the grinding tips are inserted into the gaps between adjacent cast balls and move relative to each other, generating opposite thrusts, so that the cast balls are separated from the gate rods. When the grinding tips are inserted into the gaps, the first baffle is blocked by the cast balls and moves toward the grinding cross bar, so that the V-shaped The spring is compressed to move and stretch the positioning spring rod, which together generate elastic force. When the grinding tip is away from the cast ball, under the elastic force of the V-shaped spring and the positioning spring rod, the first baffle is reset and the grinding tip is pulled out from the gap between the cast ball and the gate rod, thereby completing the separation of the cast ball and the gate rod. The cast ball then falls into the ball dropping bucket through the oscillating ball dropper. The cast ball and the gate rod separated by this method have a shallow gap, are separated in place, and are not prone to iron filings. At the same time, it can ensure that the cast ball on the gate rod is fully separated, avoiding damage to the cast ball due to multiple impacts, and avoiding the gate rod from being broken due to multiple impacts, and avoiding the generation of fragments similar to the cast ball size, so as to simplify and accelerate the separation and screening process, improve the overall production efficiency, protect the surface of the cast ball, avoid damage to the cast ball during processing, and improve the yield rate of cast ball production. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 A side view of the internal structure of the separation mechanism of the present invention;

[0034] Figure 3 It is a side view of the overall structure of the sand shaker of the present invention;

[0035] Figure 4 This is a schematic diagram of the overall structure of the blow box of the present invention;

[0036] Figure 5 It is a side view of the overall structure of the ball dropper of the present invention;

[0037] Figure 6 A side view of the internal structure of the installation box of the present invention;

[0038] Figure 7 A top view of the overall structure of the grinding assembly of the present invention;

[0039] Figure 8 A top view of the internal structure of the working box of the present invention;

[0040] Figure 9 Schematic diagram of the overall structure of the crankshaft connecting rod of the present invention;

[0041] Figure 10 It is a side view of the overall structure of the sand press of the present invention;

[0042] Figure 11 Schematic diagram of the overall structure of the posture adjustment box of the present invention;

[0043] In the figure: 100, separation mechanism; 200, sand mold conveyor; 300, molding machine; 400, sand screening conveyor; 500, sand return conveyor; 600, string casting sand mold; 101, working box; 102, sand dropper; 103, ball dropper; 104, sand press; 105, posture adjustment box; 201, oscillating sand dropper; 202, sand drop hopper; 203, first chute; 204, first slider; 205, first slide; 2 06, first telescopic rod; 207, air pump; 208, air hose; 209, air guide pipe; 210, air blowing box; 211, air blowing nozzle; 301, oscillating ball dropper; 302, ball drop bucket; 303, second chute; 304, transmission shaft; 305, second slider; 306, second slide; 307, second telescopic rod; 308, mounting box; 309, push motor; 310, transmission crossbar; 311, limit 312, push rod; 313, first rocker; 314, second rocker; 315, mounting frame; 316, support rod; 317, support cross frame; 318, working box; 319, grinding motor; 320, first bevel gear; 321, second bevel gear; 322, crankshaft connecting rod; 323, first transmission rod; 324, second transmission rod; 325, first vertical rod; 326, second vertical rod; 327, grinding Cross bar; 328, grinding tip; 329, positioning spring rod; 330, V-shaped spring; 331, first baffle; 332, third slide; 401, sand pressing push rod; 402, sand pressing plate; 403, crushing needle rod; 404, second baffle; 405, return spring; 501, adjustment box; 502, feed ramp; 503, blanking port; 504, human-shaped guide plate; 505, guide ramp; 506, blanking ramp. DETAILED DESCRIPTION

[0044] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0045] See also Figure 1-11 As shown: an automated casting production line includes a separation mechanism 100, a sand mold conveyor 200 is provided at the input end of the separation mechanism 100, a casting machine is provided just above the middle of the sand mold conveyor 200, a molding machine 300 is provided at the input end of the sand mold conveyor 200, a sand screening conveyor 400 is provided on one side of the molding machine 300, and a return sand conveyor 500 is provided at the output end of the separation mechanism 100, the return sand conveyor 500 is communicated with the input end of the sand screening conveyor 400, and the sand screening conveyor 400 is communicated with the input end of the molding machine 300;

[0046] The separation mechanism 100 includes a working box 101 and a ball dropper 103. The ball dropper 103 is arranged in the middle of the inner side of the working box 101. A sand dropper 102 is arranged above the ball dropper 103. A sand presser 104 is arranged above the sand dropper 102. A posture adjustment box 105 is installed on one side of the sand dropper 102 and the ball dropper 103.

[0047] The ball dropper 103 includes an oscillating ball dropper 301 and a grinding assembly. The grinding assembly is movably disposed in the middle of the inner side of the separation mechanism 100 and is used to grind and separate the gate cast ball string on the oscillating ball dropper 301 into gate rods and cast balls.

[0048] When this production line is working, sand is input into the molding machine 300 through the sand screening conveyor 400, and the molding machine 300 continuously produces string casting sand molds 600. The sand mold conveyor 200 continuously conveys the string casting sand molds 600 arranged side by side and abutting each other front and back to the separation mechanism 100. The string casting sand mold 600 is cast by the casting machine during the conveying process. The string casting sand mold 600 is immediately cooled after casting and is cooled and formed into a cast ball string when it reaches the input end of the separation mechanism 100. The string casting sand mold 600 is broken in sequence by the separation mechanism 100 and separated into sand, gate rods and cast balls. Then, the sand is input into the sand screening conveyor 400 through the sand return conveyor 500, thereby completing the entire cast ball casting production process.

[0049] When the separation mechanism 100 is working, the string of cast sand molds 600 are transported to the sand dropper 102 in turn, and the sand is separated from the cast ball string by the oscillation of the sand dropper 102. While the sand dropper 102 is oscillating and separating, the sand press 104 continuously moves up and down to squeeze and crush each string of cast sand molds 600, thereby efficiently separating them. The sand dropper 102 transports the separated cast balls and cast ball strings to the posture adjustment box 105, and the posture adjustment box 105 keeps the axis of the cast ball string consistent with the diversion direction of the ball dropper 103. Then the posture adjustment box 105 guides the cast ball string with adjusted posture to the ball dropper 103, separates the cast balls from the gate rod through the grinding assembly, and screens out the cast balls and the gate rod respectively through the oscillating ball dropper 301 and puts them together, thereby ensuring the production of cast balls with a high yield.

[0050] The sand shaker 102 includes an oscillating sand shaker 201, a sand shaker 202 is installed on the lower side of the oscillating sand shaker 201, and a first chute 203 is provided on both side walls of the sand shaker 202 near the upper side of the oscillating sand shaker 201. A first slider 204 is slidably connected in the first chute 203. A first slide 205 is provided below both sides of the sand shaker 202. A first telescopic rod 206 is installed on the movable end of the first slide 205. The lower side of one end of the first slider 204 is fixedly connected to the telescopic end of the first telescopic rod 206. An air pump 207 is installed on the top of the working box 101. , a blowing box 210 is provided inside the sand falling hopper 202, and an air guide shunt pipe 209 is fixedly penetrated at the axis of the blowing box 210, both ends of the air guide shunt pipe 209 pass through the blowing box 210 and are rotatably connected to the blowing box 210, one end of the air guide shunt pipe 209 is connected to the air pump 207 through the air delivery hose 208, the upper surface of the blowing box 210 is in sliding contact with the lower surface of the screen of the oscillating sand falling machine 201, and a plurality of equidistant and evenly distributed blowing nozzles 211 are embedded on the upper surface of the blowing box 210, and the blowing nozzles 211 are connected to the air guide shunt pipe 209;

[0051] When the sand shaker 102 is working, the oscillating sand shaker 201 oscillates and screens the sand mold and casting, screens out the sand and drops it on the sand shaker 202, thereby avoiding the generation of iron filings when the casting is separated, and reducing the iron filings content of the sand obtained by screening, so that the sand can be quickly and directly used to make sand molds again or reused after simple and quick screening, thereby improving work efficiency. During screening, the first slide 205 reciprocates the first telescopic rod 206, the first slider 204, the air guide diversion pipe 209 and the blow box 210 installed together, and at the same time, the blow nozzle 211 in the blow box 210 blows air to the screen mesh slots of the oscillating sand shaker 201 to prevent gravel from clogging the screen, thereby ensuring that the sand can be quickly and fully separated from the casting and fall on the sand shaker 202, so that the sand shaker 102 can be quickly separated when the sand mold and casting move a limited distance, and sand that can be reused without screening or simple screening is obtained.

[0052] A ball dropping bucket 302 is installed on the lower side of the oscillating ball dropping machine 301, and a second slide groove 303 is opened on the two side walls of the ball dropping bucket 302 near the upper side of the oscillating ball dropping machine 301. A second slider 305 is slidably connected in the second slide groove 303. A second slide 306 is provided below both sides of the ball dropping bucket 302, and a second telescopic rod 307 is installed on the movable end of the second slide 306. The lower side of one end of the second slider 305 is rotatably hinged to the telescopic end of the second telescopic rod 307. A mounting box 308 is provided inside the ball dropping bucket 302, and a transmission shaft 304 is installed at the axis of both ends of the mounting box 308. The transmission shaft 304 is fixedly passed through the second The second slider 305 and the installation box 308 are provided with a push motor 309 and a transmission cross bar 310. Both ends of the transmission cross bar 310 are hinged with a first swing bar 313, and the end of the first swing bar 313 is hinged with a second swing bar 314. The rotation axis of the push motor 309 is hinged to one of the second swing bars 314, and the other second swing bar 314 is hinged to the side wall of the installation box 308. A plurality of push rods 312 are hinged on the transmission cross bar 310 and are evenly distributed at equal distances. A plurality of limiting slots 311 are opened in the middle of the upper surface of the installation box 308. The limiting slots 311 correspond to the push rods 312 one by one and are slidably sleeved.

[0053] When the ball dropper 103 is working, the oscillating ball dropper 301 separates the cast ball from the gate rod, and the cast ball passes through the screen of the oscillating ball dropper 301 and falls into the ball dropper 302, and the second telescopic rod 307 moves back and forth through the second slide 306, driving the installation box 308 to move back and forth, and the pushing motor 309 in the installation box 308 drives the connecting rod mechanism composed of the first rocker arm 313 and the second rocker arm 314 to swing back and forth and extend and retract, and is limited by the limit slot 311, so that each pushing rod 312 can reciprocate and extend axially, constantly knocking the cast ball blocked in the screen hole slot of the pushing oscillating ball dropper 301, preventing the cast ball from blocking the hole slot, improving the cast ball separation efficiency, and reducing the size and weight of the oscillating ball dropper 301.

[0054] The grinding assembly of the ball dropper 103 includes a mounting frame 315, both ends of the mounting frame 315 are fixedly connected to the middle of the inner wall of the working box 101, a support push rod 316 is installed in the middle of the mounting frame 315, and a support cross frame 317 is installed at the lower end of the telescopic end of the support push rod 316, and a plurality of working boxes 318 are installed side by side on the lower surface of the support cross frame 317, and a grinding motor 319 is installed in the middle of the inner side of the working box 318, and the first bevel gear 320 is installed at both ends of the rotating shaft of the grinding motor 319, and the second bevel gear 321 is rotatably connected at both ends of the inner side of the working box 318, and the first bevel gear 320 and the second bevel gear 321 are correspondingly meshed for transmission, and a crankshaft connecting rod 322 is installed on the upper end of the rotating shaft of the second bevel gear 321, and the crankshaft connecting rod 322 is rotatably connected to the first transmission rod 323 and the second transmission rod 324, and both sides of the working box 318 are provided with a first transmission rod 323 and a second transmission rod 324. The third sliding slot 332 of the rod 324 slides, and a grinding cross bar 327 is provided on both sides of the working box 318. The grinding cross bar 327 is parallel to the working box 318, and one grinding cross bar 327 is fixedly connected to the first transmission rod 323 through the first vertical rod 325, and the other grinding cross bar 327 is fixedly connected to the second transmission rod 324 through the second vertical rod 326. A plurality of grinding sharp blocks 328 arranged side by side are fixedly connected to both sides of the grinding cross bar 327. A positioning spring rod 329 is fixedly connected to the end surface of both ends of the grinding cross bar 327. A V-shaped spring piece 330 is installed at the telescopic end of the positioning spring rod 329. A first baffle 331 is installed between the two V-spring pieces 330 and on both sides of the grinding cross bar 327. The grinding sharp block 328 on each side movably penetrates the corresponding first baffle 331 and is slidably connected to it. When stationary, only the tip of the grinding sharp block 328 extends out of the through hole of the first baffle 331;

[0055] When the grinding assembly is working, the support push rod 316 moves down each working box 318, so that the lower surface of the first baffle 331 abuts against the upper surface of the screen of the oscillating ball drop machine 301, and then the oscillating ball drop machine 301 oscillates to drive each gate rod to move. When the gate rod moves between adjacent grinding cross bars 327, the grinding motor 319 drives the crankshaft connecting rod 322 to rotate through the first bevel gear 320 and the second bevel gear 321, so that the grinding cross bars 327 perform circular motion in a posture parallel to the moving direction of the gate rod, so that the adjacent grinding cross bars 327 continuously move relative to each other and continuously approach and move away, so that each row of grinding tips 328 can contact the two sides of the gate rod that have not yet separated. The casting ball is ground, and the grinding tip 328 is inserted into the gap between adjacent casting balls and moves relative to each other, generating opposite thrusts, so that the casting ball is separated from the gate rod. When the grinding tip 328 is inserted into the gap, the first baffle 331 is blocked by the casting ball and moves toward the grinding cross bar 327, so that the V-shaped spring 330 is compressed and moves and stretches the positioning spring rod 329, and together they generate elastic force. When the grinding tip 328 is away from the casting ball, under the elastic force of the V-shaped spring 330 and the positioning spring rod 329, the first baffle 331 is reset and the grinding tip 328 is pulled out from the casting ball gap, thereby completing the separation of the casting ball and the gate rod. Then the casting ball falls into the ball dropping bucket 302 through the oscillating ball dropping machine 301.

[0056] The sand press 104 includes a sand pressing rod 401. A sand pressing plate 402 is mounted at the lower end of the telescopic end of the sand pressing rod 401. A plurality of crushing needle rods 403 are mounted on the lower surface of the sand pressing plate 402 and are evenly distributed in an array. Return springs 405 are mounted at the four corners of the lower surface of the sand pressing plate 402. A second baffle 404 is mounted on the lower end of each return spring 405. The crushing needle rods 403 are movable and penetrate the second baffle 404. When stationary, the lower ends of the crushing needle rods 403 extend out of the second baffle 404.

[0057] The sand press 104 cooperates with the sand shaker 102 to work. When a sand mold falls on the end of the oscillating sand shaker 201, the oscillating sand shaker 201 oscillates continuously. At the same time, the sand pressing push rod 401 pushes down the sand plate 402, and the sand mold is pierced and squeezed by each mold crushing needle rod 403, so that the sand mold is quickly broken into small pieces and sand piles, which is convenient for the oscillating sand shaker 201 to separate the sand therein. When the sand pressing plate 402 no longer presses down the sand mold, the return spring 405 recovers, and the second baffle 404 moves down to remove the gravel attached to the mold crushing needle rod 403, which is convenient for subsequent continuous use.

[0058] The posture adjustment box 105 includes a positioning box body 501, a feed ramp 502 is embedded in the upper part of the positioning box body 501, a feeding opening 503 is provided on the side of the feeding ramp 502 close to the positioning box body 501, a feeding ramp 506 is embedded in the lower part of the positioning box body 501, an oscillator is provided at the bottom of the positioning box body 501, a plurality of human-shaped guide plates 504 evenly distributed in a diamond array are provided in the positioning box body 501 and between the feeding opening 503 and the feeding ramp 506, and a plurality of guide ramps 505 evenly distributed in an array are provided on the inner walls of both sides of the positioning box body 501;

[0059] The posture adjustment box 105 cooperates with the sand dropper 102 to adjust the posture of the separated castings, so that the posture of the castings after the sand and gravel are separated is parallel to the material guiding direction of the ball dropper 103. During operation, the castings are guided out of the sand dropper 102 and fall on the feed inclined plate 502. Then the castings pass through the drop port 503, and are guided and posture corrected by the sides of each human-shaped guide plate 504 and the guide inclined plate 505, so that the gate rod of the casting is parallel to the material guiding direction of the ball dropper 103. The cast balls separated during the correction process also fall onto the ball dropper 103. When the castings fall on the drop inclined plate 506, the gate rods after correction are parallel to the material guiding direction of the ball dropper 103, so that the ball dropper 103 can grind and separate the cast balls still attached to the side of the gate rod.

[0060] A production method of an automated casting production line comprises the following steps:

[0061] Step 1: Sand is fed into the molding machine 300 through the sand screening conveyor 400. The molding machine 300 continuously produces string casting sand molds 600. The string casting sand molds 600 are cast by the casting machine during the conveying process. The string casting sand molds 600 are cooled immediately after casting and are cooled and formed into a cast ball string when they reach the input end of the separation mechanism 100. The sand mold conveyor 200 continuously conveys the string casting sand molds 600 arranged side by side and abutting each other front and back to the separation mechanism 100.

[0062] Step 2: The string casting sand mold 600 is sequentially conveyed to the sand shakeout device 102, and the sand mold and casting are oscillated and screened by the oscillating sand shakeout device 201, and the sand therein is screened out and falls on the sand shakeout hopper 202. During screening, the first slide 205 reciprocates and moves the first telescopic rod 206, the first slider 204, the air guide diverter pipe 209 and the blow box 210 installed together, and at the same time, the blow nozzle 211 in the blow box 210 blows air to the screen mesh slot of the oscillating sand shakeout device 201 to prevent the sand from clogging the screen. At the same time, the sand pressing push rod 401 pushes the sand plate 402 downward, and the sand mold is punctured and squeezed through each crushing needle rod 403. When the sand pressing plate 402 no longer presses the sand mold, the return spring 405 is restored, and the second baffle 404 moves downward to remove the sand attached to the crushing needle rod 403, thereby squeezing and crushing each string casting sand mold 600.

[0063] Step 3: The sand shaker 102 transports the separated casting balls and casting ball strings into the posture adjustment box 105. The castings are guided out of the sand shaker 102 and fall onto the feed ramp 502. Then, the castings pass through the drop port 503 and are guided and posture-corrected by the side surfaces of the various human-shaped guide plates 504 and the guide ramp 505. During the correction process, the separated casting balls also fall onto the ball dropper 103. When the castings fall onto the drop ramp 506, the gate rods after correction are parallel to the guiding direction of the ball dropper 103. Then, the posture adjustment box 105 guides the cast ball strings with adjusted postures onto the ball dropper 103.

[0064] When the cam 328 is in the process of being moved to the left, the cam 328 is in the process of being moved to the right, and the cam 328 is in the process of being moved to the left, and the cam 328 is in the process of being moved to the right, so that the cam 328 is in the process of being moved to the right, and the cam 328 is in the process of being moved to the left, so that the cam 328 is in the process of being moved to the right ... The spring piece 330 is compressed and moves and stretches the positioning spring rod 329, which together generate elastic force. When the grinding tip 328 moves away from the casting ball, under the elastic force of the V-shaped spring piece 330 and the positioning spring rod 329, the first baffle 331 is reset and the grinding tip 328 is pulled out from the casting ball gap, thereby completing the separation of the casting ball and the gate rod. Then the casting ball falls into the ball dropping bucket 302 through the oscillating ball dropping machine 301, and the second telescopic rod 307 is reciprocated by the second slide 306, which brings The movable installation box 308 moves back and forth, and the push motor 309 in the installation box 308 drives the connecting rod mechanism composed of the first swing rod 313 and the second swing rod 314 to swing back and forth and retract, and is limited by the limit slot 311, so that each push rod 312 can reciprocate and retract along the axial direction, constantly knocking the cast balls blocked in the mesh slots of the push oscillating ball dropper 301 to prevent the cast balls from clogging the slots, and the cast balls and gate rods are screened out and collected separately by the oscillating ball dropper 301;

[0065] Step 5: The sand is fed into the sand screening conveyor 400 through the sand return conveyor 500 to complete the entire ball casting production process.

[0066] In summary, when the sand shaker 102 is working, the oscillating sand shaker 201 oscillates and screens the sand mold and casting, and screens out the sand and drops it on the sand shaker 202, thereby avoiding the generation of iron filings when the casting is separated and reducing the iron filings content of the screened sand, so that the sand can be quickly and directly used to make sand molds again or be reused after simple and fast screening, thereby improving work efficiency. During screening, the first slide 205 reciprocates to move the first telescopic rod 206, the first slider 204, and the guide rail 206 installed together. The air diversion pipe 209 and the blow box 210, and the blow nozzle 211 in the blow box 210 blow air to the screen mesh slots of the oscillating sand shakeout machine 201 to prevent the sand from clogging the screen, thereby ensuring that the sand can be quickly and fully separated from the casting and fall onto the sand shakeout hopper 202, so that the sand shakeout machine 102 can be quickly separated when the sand mold and the casting move a limited distance, and obtain sand that can be reused without screening or with simple screening, thereby saving the cost and time for magnetic separation and screening of sand, and improving production efficiency;

[0067] When the ball dropper 103 is working, the oscillating ball dropper 301 separates the cast balls from the gate rod, and the cast balls pass through the screen of the oscillating ball dropper 301 and fall into the ball dropper 302. The second telescopic rod 307 is moved back and forth by the second slide 306, driving the installation box 308 to move back and forth. The pushing motor 309 in the installation box 308 drives the connecting rod mechanism composed of the first swing rod 313 and the second swing rod 314 to swing back and forth and extend and retract, and is limited by the limit slot 311, so that each pushing rod 312 can reciprocate and extend along the axial direction, constantly knocking the cast balls blocked in the mesh slots of the oscillating ball dropper 301, preventing the cast balls from blocking the slots, improving the cast ball separation efficiency, and reducing the size and weight of the oscillating ball dropper 301, thereby saving money and improving efficiency.

[0068] When the grinding assembly is working, the supporting push rod 316 moves down each working box 318, so that the lower surface of the first baffle 331 abuts against the upper surface of the screen of the oscillating ball drop machine 301, and then the oscillating ball drop machine 301 oscillates to drive each gate rod to move. When the gate rod moves between adjacent grinding cross bars 327, the grinding motor 319 drives the crankshaft connecting rod 322 to rotate through the first bevel gear 320 and the second bevel gear 321, so that the grinding cross bar 327 performs a circular motion in a posture parallel to the moving direction of the gate rod, so that the adjacent grinding cross bars 327 continue to move relative to each other and continue to approach and move away, so that each row of grinding tips 328 grinds the cast balls that have not yet separated on both sides of the gate rod, and the grinding tips 328 are inserted into the gaps between adjacent cast balls and move relative to each other, generating opposite thrusts, so that the cast balls are separated from the gate rods. When the grinding tips 328 are inserted into the gaps, the first baffle 331 is blocked by the cast balls and thus moves toward the grinding cross bars When the ball is moved, the V-shaped spring 330 is compressed and the positioning spring rod 329 is stretched, thereby generating elastic force. When the grinding tip 328 is away from the ball, the first baffle 331 is reset and the grinding tip 328 is pulled out from the gap between the ball and the gate rod under the elastic force of the V-shaped spring 330 and the positioning spring rod 329, thereby completing the separation of the ball and the gate rod. The ball then falls into the ball dropping bucket 302 through the oscillating ball dropper 301. The ball and the gate rod separated by this method have a shallow gap, are separated in place, and are not prone to iron filings. At the same time, it can ensure that the ball on the gate rod is fully separated, avoiding damage to the ball due to multiple impacts, and avoiding breakage of the gate rod due to multiple impacts, and avoiding the generation of fragments similar to the size of the ball, so as to simplify and accelerate the separation and screening process, improve the overall production efficiency, protect the surface of the ball, avoid damage to the ball during processing, and improve the yield rate of ball production.

[0069] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. An automated casting production line, characterized in that: include: Separation mechanism (100); The ball dropper (103) comprises an oscillating ball dropper (301) and a grinding assembly. The grinding assembly is arranged in a liftable manner at the inner middle part of the separation mechanism (100), and the grinding assembly is used to grind and peel the gate cast ball string on the oscillating ball dropper (301) into a gate rod and cast balls.

2. The automated casting production line according to claim 1, characterized in that: The input end of the separation mechanism (100) is provided with a sand mold conveyor (200), a casting machine is provided just above the middle of the sand mold conveyor (200), and a molding machine (300) is provided at the input end of the sand mold conveyor (200), a sand screening conveyor (400) is provided on one side of the molding machine (300), and a return sand conveyor (500) is provided at the output end of the separation mechanism (100), the return sand conveyor (500) is communicated with the input end of the sand screening conveyor (400), and the sand screening conveyor (400) is communicated with the input end of the molding machine (300).

3. The automated casting production line according to claim 1, characterized in that: The separation mechanism (100) comprises a working box (101), the ball dropper (103) is arranged in the middle of the inner side of the working box (101), a sand dropper (102) is arranged above the ball dropper (103), a sand presser (104) is arranged above the sand dropper (102), and a posture adjustment box (105) is installed on one side of the sand dropper (102) and the ball dropper (103).

4. The automated casting production line according to claim 3, characterized in that: The sand shaker (102) comprises an oscillating sand shaker (201), a sand shaker (202) is installed on the lower side of the oscillating sand shaker (201), a first chute (203) is provided on both side walls of the sand shaker (202) near the upper side of the oscillating sand shaker (201), a first slider (204) is slidably connected in the first chute (203), a first slide (205) is provided below both sides of the sand shaker (202), a first telescopic rod (206) is installed on the movable end of the first slide (205), the lower side of one end of the first slider (204) is fixedly connected to the telescopic end of the first telescopic rod (206), and an air pump (207) is installed on the top of the working box (101). ), a blowing box (210) is provided inside the sand dropping hopper (202), an air guide diversion pipe (209) is fixedly provided at the axis of the blowing box (210), both ends of the air guide diversion pipe (209) pass through the first slider (204) and are rotatably connected to the first slider (204), one end of the air guide diversion pipe (209) is connected to the air pump (207) through the air delivery hose (208), the upper surface of the blowing box (210) is in sliding contact with the lower surface of the screen of the oscillating sand dropping machine (201), and a plurality of equidistant and evenly distributed blowing nozzles (211) are embedded on the upper surface of the blowing box (210), and the blowing nozzles (211) are connected to the air guide diversion pipe (209).

5. The automated casting production line according to claim 4, characterized in that: A ball dropping bucket (302) is installed on the lower side of the oscillating ball dropping machine (301), and a second sliding groove (303) is opened on both side walls of the ball dropping bucket (302) near the upper side of the oscillating ball dropping machine (301), and a second slider (305) is slidably connected in the first sliding groove (203). A second slide (306) is provided below both sides of the ball dropping bucket (302), and a second telescopic rod (307) is installed on the movable end of the second slide (306). The lower side of one end of the second slider (305) is rotatably hinged with the telescopic end of the second telescopic rod (307), and an installation box (308) is provided inside the ball dropping bucket (302), and a transmission shaft (304) is installed at the axis of both ends of the installation box (308). The transmission shaft (304) ) is fixedly provided with a second slider (305), the interior of the installation box (308) is provided with a push motor (309) and a transmission cross bar (310), both ends of the transmission cross bar (310) are hinged with a first rocking bar (313), the end of the first rocking bar (313) is hinged with a second rocking bar (314), the rotating shaft of the push motor (309) is hinged with one of the second rocking bars (314), and the other second rocking bar (314) is hinged with the side wall of the installation box (308), a plurality of push rods (312) evenly distributed at equal distances are hinged on the transmission cross bar (310), a plurality of limiting slots (311) are provided in the middle of the upper surface of the installation box (308), and the limiting slots (311) correspond to the push rods (312) one by one and are slidably sleeved.

6. The automated casting production line according to claim 3, characterized in that: The grinding assembly includes a mounting frame (315), both ends of the mounting frame (315) are fixedly connected to the middle of the inner wall of the working box (101), a support push rod (316) is installed in the middle of the mounting frame (315), a support cross frame (317) is installed at the lower end of the telescopic end of the support push rod (316), a plurality of working boxes (318) are installed side by side on the lower surface of the support cross frame (317), a grinding motor (319) is installed in the middle of the inner side of the working box (318), both ends of the rotating shaft of the grinding motor (319) are installed with a first bevel gear (320), both ends of the inner side of the working box (318) are rotatably connected with a second bevel gear (321), the first bevel gear (320) and the second bevel gear (321) are meshed and driven respectively, and the upper end of the rotating shaft of the second bevel gear (321) is installed. A crankshaft connecting rod (322) is provided, and a first transmission rod (323) and a second transmission rod (324) are rotatably connected to the crankshaft connecting rod (322). A third sliding groove (332) for sliding with the first transmission rod (323) and the second transmission rod (324) is provided on both sides of the working box (318). A grinding cross bar (327) is provided on both sides of the working box (318). The grinding cross bar (327) is parallel to the working box (318). One grinding cross bar (327) is fixedly connected to the first transmission rod (323) through a first vertical rod (325), and the other grinding cross bar (327) is fixedly connected to the second transmission rod (324) through a second vertical rod (326). Both sides of the grinding cross bar (327) are fixedly connected to a plurality of grinding tips (328) arranged side by side.

7. The automated casting production line according to claim 6, characterized in that: Positioning spring rods (329) are fixedly connected to the end surfaces of both ends of the grinding crossbar (327), and a V-shaped spring leaf (330) is installed at the telescopic end of the positioning spring rod (329). A first baffle (331) is installed between the two V-shaped spring leaves (330) and on both sides of the grinding crossbar (327). The grinding tip block (328) on each side is movable through the corresponding first baffle (331) and is slidably connected thereto. When the grinding tip block (328) is stationary, only the tip of the grinding tip block (328) extends out of the through hole of the first baffle (331).

8. The automated casting production line according to claim 3, characterized in that: The sand press (104) comprises a sand pressing push rod (401), a sand pressing plate (402) is installed at the lower end of the telescopic end of the sand pressing push rod (401), a plurality of fragmented needle rods (403) evenly distributed in an array are installed on the lower surface of the sand pressing plate (402), reset springs (405) are installed at the four corners of the lower surface of the sand pressing plate (402), and a second baffle (404) is commonly installed at the lower end of each reset spring (405), the fragmented needle rods (403) are movable and penetrate the second baffle (404), and when stationary, the lower end of the fragmented needle rods (403) extends out of the second baffle (404).

9. The automated casting production line according to claim 3, characterized in that: The posture adjustment box (105) comprises a positioning box body (501), a feed inclined plate (502) is embedded in the upper part of the positioning box body (501), a feeding opening (503) is provided on the side of the feeding inclined plate (502) close to the positioning box body (501), a feeding inclined plate (506) is embedded in the lower part of the positioning box body (501), an oscillator is provided at the bottom of the positioning box body (501), a plurality of human-shaped guide plates (504) uniformly distributed in a diamond array are provided in the positioning box body (501) and located between the feeding opening (503) and the feeding inclined plate (506), and a plurality of guide inclined plates (505) uniformly distributed in an array are provided on both sides of the inner wall of the positioning box body (501).

10. A production method of an automated casting production line, applied to an automated casting production line as claimed in claims 3 to 9, characterized in that: The following steps are involved: Step 1: sand is fed into the molding machine (300) via a sand screening conveyor (400), a continuous casting sand mold (600) is produced by the molding machine (300), and the sand mold conveyor (200) conveys the continuous casting sand mold (600) to the separation mechanism (100); Step 2: The sand is separated from the casting ball string by the vibration of the sand shaker (102), and the sand press (104) continuously squeezes and crushes each string of sand casting molds (600); Step 3: The sand dropper (102) transports the separated cast ball string to the attitude adjustment box (105), aligns the axis of the cast ball string with the diversion direction of the ball dropper (103), and then guides it to the ball dropper (103); Step 4: Separate the casting balls from the gate rods through the grinding assembly, and screen out the casting balls and the gate rods respectively through the oscillating ball dropper (301) and collect them separately; Step 5: The sand is fed into the sand screening conveyor (400) via the sand return conveyor (500), completing the entire ball casting production process.

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