阅读说明：本技术 一种雨淋式加砂料仓 (Rain-type sand feeding bin ) 是由 唐伟 吴星星 于 2020-12-08 设计创作，主要内容包括：本发明公开了一种雨淋式加砂料仓,包括主料仓、分料块、布料机构、气管、喷气组件、第一调速电机、转轴、凸轮、往复锁紧机构、漏料板、密封板、辅料仓、料管、第二调速电机、第一齿轮、防护罩,第一调速电机通过转轴带动凸轮转动,从而带动往复锁紧机构动作将漏料板沿密封板拉出或推入,使得漏料板上的漏料孔与分料块上的分流孔对齐或隔开,实现下料或堵料,经气管向喷气组件内鼓入压缩空气,使得原料吹散、混合后加速进入布料机构,第二调速电机通过第一齿轮带动布料机构上的第二齿轮转动,使得原料自锥形布料器中心向边缘布料,实现雨淋式布料。该装置结构简单,通过间隙供料,旋转布料的形势实现雨淋式落砂,提高加砂的均匀性。(The invention discloses a deluge type sand feeding bin which comprises a main bin, a distributing block, a distributing mechanism, an air pipe, an air injection assembly, a first speed regulating motor, a rotating shaft, a cam, a reciprocating locking mechanism, a material leaking plate, a sealing plate, an auxiliary bin, a material pipe, a second speed regulating motor, a first gear and a protective cover. The device simple structure through the clearance feed, the form of rotatory cloth realizes drenching formula shakeout, improves the homogeneity that adds the sand.)

1. A deluge type sand feeding bin is characterized by comprising a main bin, a distributing block, a distributing mechanism, an air pipe, an air injection assembly, a first speed regulating motor, a rotating shaft, a cam, a reciprocating locking mechanism, a material leaking plate, a sealing plate, an auxiliary bin, a material pipe, a second speed regulating motor, a first gear and a protective cover, wherein the distributing block is positioned at the lower end of the main bin and is connected with the main bin through a bolt, the distributing mechanism is positioned at the lower end of the distributing block and is connected with the distributing block through a bolt, the air pipe is positioned on the outer side of the distributing block and is connected with the distributing block through a bolt, one end of the air injection assembly extends into the distributing block, the air injection assembly is respectively connected with the distributing block and the air pipe through bolts, the first speed regulating motor is positioned on the right side of the main bin and is connected with the main bin through a bolt, the rotary shaft is positioned at the lower end of the first speed regulating motor, the rotary shaft is connected with the first speed regulating motor through a bolt, the cam is positioned at the lower end of the rotary shaft, the cam is connected with the rotary shaft through a bolt, the reciprocating locking mechanism is positioned at the lower end of the cam and positioned outside the main material bin, the reciprocating locking mechanism is connected with the main material bin through a bolt, the leakage plate penetrates through the distribution block and positioned at the lower end of the air injection assembly, the leakage plate slides along the distribution block, the sealing plate is positioned outside the distribution block and penetrated through by the leakage plate, the sealing plate is connected with the distribution block through a bolt, the auxiliary material bin is positioned at the upper end of the inner side of the main material bin, the auxiliary material bin is connected with the main material bin through a bolt, the material pipe is positioned at the lower end of the auxiliary material bin and extends into the distribution block, the material pipe is connected with the auxiliary material bin in a, the second speed regulating motor is connected with the distributing block through a bolt, the first gear is located at the lower end of the second speed regulating motor and connected with the second speed regulating motor through a bolt, the protective cover is located at the lower end of the distributing block and located on the outer side of the distributing mechanism, and the protective cover is connected with the distributing block through a bolt.

2. The deluge-type sanding silo according to claim 1, wherein the main silo is further provided with a feeding pipe, and the feeding pipe is connected with the main silo through a bolt.

3. The deluge-type sanding silo according to claim 1, wherein the distributor block is further provided with a diversion hole, the diversion hole penetrates through the main body of the distributor block, and the axis of the diversion hole coincides with the axis of the distributing mechanism and the axis of the material pipe respectively.

4. The deluge-type sanding bin according to claim 1, wherein the distributing mechanism includes a fixed pipe, a rotating pipe, a steel ball, a plug, a conical collecting pipe, a conical distributor, and a second gear, the fixed pipe is located at the lower end of the distributing block, the fixed pipe is connected with the distributing block through a bolt, the rotating pipe is located at the lower end of the fixed pipe, the rotating pipe is connected with the fixed pipe in a clearance fit manner, the steel ball is located between the fixed pipe and the rotating pipe, the plug penetrates through the rotating pipe, the plug is connected with the rotating pipe through a thread, the conical collecting pipe is located at the lower end of the inner side of the fixed pipe, the conical collecting pipe is connected with the fixed pipe in a welding manner, the conical distributor is located at the lower end of the rotating pipe and extends into the conical collecting pipe, the conical distributor is connected with the rotating pipe in a welding manner, the second gear is located at the top of the rotating pipe and is located at the outer side of the first, the second gear and the rotating pipe are connected through a bolt and are meshed with the first gear, the fixed pipe is further provided with a limiting groove, the limiting groove is located on the outer side of the fixed pipe, and the limiting groove does not penetrate through the main body of the fixed pipe.

5. The deluge-type sanding silo according to claim 4, characterized in that the conical hopper is further provided with a distribution chute, distribution holes, and a material guiding portion, the distribution chute is located outside the conical hopper, the distribution chute does not penetrate through the main body of the conical hopper, the number of the distribution holes is not less than 2, the distribution holes are arranged at equal intervals along the distribution chute, the distribution holes penetrate through the main body of the conical hopper, the material guiding portion is located at the top of the conical hopper, and the material guiding portion is connected with the conical hopper by welding.

6. The deluge-type sanding silo according to claim 1, wherein the air injection assembly comprises a transition elbow, an injection pipe, an upper nozzle and an acceleration mechanism, the transition elbow is located at the lower end of the air pipe and located on the outer side of the distributing block, the transition elbow is in threaded connection with the air pipe and connected with the distributing block through a bolt, the injection pipe is located on the outer side of the transition elbow and extends into the distributing block, the injection pipe is in threaded connection with the transition elbow, the number of the upper nozzles is not less than two, the upper nozzles are arranged at the upper end of the injection pipe at equal intervals, and the number of the acceleration mechanism is not less than two, and the acceleration mechanism is arranged at the lower end of the injection.

7. The deluge-type sanding silo according to claim 6, wherein the accelerating mechanism comprises a horizontal pipe, inclined pipes and lower spray heads, the horizontal pipe is located at the lower end of the spray pipe, the horizontal pipe is in threaded connection with the spray pipe, the number of the inclined pipes is 2, the inclined pipes are symmetrically arranged along the left and right directions of the horizontal pipe, and the number of the lower spray heads is 2, and the lower spray heads are symmetrically arranged along the left and right directions of the horizontal pipe.

8. The deluge-type sanding bin of claim 1, wherein the reciprocal locking mechanism includes a housing, a ram, a first spring, an upper wedge, a lower wedge, a push rod, a collet, a second spring, and a proximity switch, the housing is located outside the bin, the housing is connected to the bin via a bolt, the ram passes through the housing and is located at a lower end of the cam, the ram is in clearance fit with the housing and is attached to the cam, the first spring is located between the ram and the housing, the upper wedge is located inside the housing, the upper wedge slides along the housing in the up-down direction, the lower wedge is located at a lower end of the upper wedge and is located at a bottom of the housing, the lower wedge slides along the left-right direction of the housing, the push rod is located at a left side of the lower wedge and passes through the housing, the push rod is in threaded connection with the lower wedge and is in clearance fit with the housing, the chuck be located the push rod left side and be located the hourglass flitch right side, the chuck pass through the bolt with push rod and hourglass flitch respectively and link to each other, the second spring be located the push rod outside and be located between chuck and the casing, proximity switch be located the casing outside, proximity switch and casing screw thread link to each other.

9. The deluge-type sanding silo according to claim 1, wherein the material leaking plate is further provided with material leaking holes, and the material leaking holes penetrate through the main body of the material leaking plate.

Technical Field

The invention relates to a storage bin, in particular to a rain type sand adding storage bin.

Background

Today, with rapid development of science and technology, some complex structural parts have no other manufacturing process to replace at present due to the special advantages of the casting forming process. The casting process is still the most economical and convenient metal forming process. China is the largest casting production country in the world at present, and according to the introduction of data, the production value of casting products in China accounts for about 1% in national economy. The lost foam casting is applied in a large scale due to the characteristics of environmental protection and high precision, the molding sand needs to be poured into a sand box during the lost foam casting, the traditional method utilizes a bin with an electric valve to directly discharge the sand, the electric valve is long in discharging time after being opened, raw materials are easy to accumulate, an additional vibrating and leveling process needs to be added subsequently, and the efficiency is low. In view of the above drawbacks, it is necessary to design a raining type sand silo.

Disclosure of Invention

The invention aims to provide a rain-type sand feeding bin which realizes rain-type shakeout through intermittent feeding and the rotary distribution situation and improves the uniformity of sand feeding.

In order to solve the technical problems, the technical scheme of the invention is as follows: a rain-type sand feeding bin comprises a main bin body, a distributing block, a distributing mechanism, an air pipe, an air injection assembly, a first speed regulating motor, a rotating shaft, a cam, a reciprocating locking mechanism, a material leaking plate, a sealing plate, an auxiliary bin, a material pipe, a second speed regulating motor, a first gear and a protective cover, wherein the distributing block is positioned at the lower end of the main bin body, the distributing block is connected with the main bin body through a bolt, the distributing mechanism is positioned at the lower end of the distributing block, the distributing mechanism is connected with the distributing block through a bolt, the air pipe is positioned on the outer side of the distributing block, the air pipe is connected with the distributing block through a bolt, one end of the air injection assembly extends into the distributing block, the air injection assembly is respectively connected with the distributing block and the air pipe through bolts, the first speed regulating motor is positioned at the right side of the main bin body, the first speed regulating motor is connected with the main bin body through a bolt, the rotating shaft is connected with the first speed regulating motor through a bolt, the cam is positioned at the lower end of the rotating shaft and is connected with the rotating shaft through a bolt, the reciprocating locking mechanism is positioned at the lower end of the cam and is positioned outside the main material bin, the reciprocating locking mechanism is connected with the main material bin through a bolt, the leaking plate penetrates through the distributing block and is positioned at the lower end of the air injection assembly, the leaking plate slides along the distributing block, the sealing plate is positioned outside the distributing block and is penetrated through by the leaking plate, the sealing plate is connected with the distributing block through a bolt, the auxiliary material bin is positioned at the upper end of the inner side of the main material bin, the auxiliary material bin is connected with the main material bin through a bolt, the material pipe is positioned at the lower end of the auxiliary material bin and extends into the distributing block, the material pipe is connected with the auxiliary material bin in a welding manner, the second speed regulating motor is positioned on the left side of the distributing block, the first gear is located at the lower end of the second speed regulating motor, the first gear is connected with the second speed regulating motor through a bolt, the protective cover is located at the lower end of the distributing block and located on the outer side of the distributing mechanism, and the protective cover is connected with the distributing block through a bolt.

The invention is further improved as follows:

further, the main material storehouse still be equipped with the inlet pipe, inlet pipe and main material storehouse pass through the bolt and link to each other.

Furthermore, the distributing block is also provided with a shunting hole, the shunting hole penetrates through the main body of the distributing block, and the axis of the shunting hole is respectively superposed with the axis of the distributing mechanism and the axis of the material pipe.

Furthermore, the distributing mechanism comprises a fixed pipe, a rotating pipe, a steel ball, a plug, a conical concentration pipe, a conical distributor and a second gear, wherein the fixed pipe is positioned at the lower end of the distributing block, the fixed pipe is connected with the distributing block through a bolt, the rotating pipe is positioned at the lower end of the fixed pipe, the rotating pipe is in clearance fit connection with the fixed pipe, the steel ball is positioned between the fixed pipe and the rotating pipe, the plug penetrates through the rotating pipe, the plug is in threaded connection with the rotating pipe, the conical concentration pipe is positioned at the lower end of the inner side of the fixed pipe, the conical concentration pipe is in welded connection with the fixed pipe, the conical distributor is positioned at the lower end of the rotating pipe and extends into the conical concentration pipe, the conical distributor is in welded connection with the rotating pipe, the second gear is positioned at the top of the rotating pipe and is positioned at the outer side of the first gear, the second gear is connected with the rotating pipe through a bolt and is meshed with the first gear, the fixed pipe still be equipped with the spacing groove, the spacing groove be located the outside of fixed pipe, the spacing groove not run through the main part of fixed pipe.

Furthermore, the conical distributing device is also provided with a distributing chute, distributing holes and a material guiding part, the distributing chute is positioned outside the conical distributing device, the distributing chute does not penetrate through the main body of the conical distributing device, the number of the distributing holes is not less than 2, the distributing holes are arranged at equal intervals along the distributing chute, the material guiding part is positioned at the top of the conical distributing device, the material guiding part is welded with the conical distributing device, a second speed regulating motor drives a second gear to rotate through a first gear, a steel ball arranged in a limiting groove freely rotates, so that the rotating pipe can stably rotate along a fixed pipe, and the conical concentrating pipe is in an inverted conical shape, so that the powder mixed again through an air injection assembly is concentrated in the conical concentrating pipe, and meanwhile, the conical distributing device is in a positive conical shape and is inserted into the conical concentrating pipe, therefore, when the conical distributing device rotates along with the rotating pipe, the powder slides along the distributing groove through the material guiding part and is distributed through the distributing hole, so that the distribution from the center to the edge of the conical distributing device is realized, in the process, the air injection assembly works all the time, the powder in the conical concentrated pipe is pushed to be distributed along the conical distributing device in an accelerating mode, and the problems of unsmooth powder blanking and the like are prevented.

Furthermore, the air injection assembly comprises a transition bent pipe, a spray pipe, an upper spray head and an accelerating mechanism, the transition bent pipe is located at the lower end of the air pipe and located on the outer side of the distributing block, the transition bent pipe is connected with the air pipe through threads and connected with the distributing block through bolts, the spray pipe is located on the outer side of the transition bent pipe and extends into the distributing block, the spray pipe is connected with the transition bent pipe through threads, the number of the upper spray head is not less than two, the upper spray head is arranged at the upper end of the spray pipe at equal intervals, the number of the accelerating mechanism is not less than two, and the accelerating mechanism is arranged at.

Further, accelerating mechanism including violently managing, pipe chute, lower shower nozzle, violently the pipe be located the spray tube lower extreme, violently manage and spray tube screw thread and link to each other, pipe chute quantity be 2, along the left and right sides symmetrical arrangement of violently managing, the quantity of lower shower nozzle be 2, along the left and right sides symmetrical arrangement of violently managing, blast compressed air to the spray tube through the trachea, go up shower nozzle spun air and will blow away from the raw materials that the flitch was carried and normally fall in order to prevent its jam, and can mix the raw materials at the in-process that blows away, the air in the spout is simultaneously in succession through violently managing, pipe chute and lower shower nozzle blowout, because the pipe chute of two symmetrical arrangement and the anchor clamps acute angle between the violently managing, consequently, can blow in the cloth mechanism with the accelerated mixing of raw materials once more.

Further, the reciprocating locking mechanism comprises a shell, a push rod, a first spring, an upper wedge block, a lower wedge block, a push rod, a chuck, a second spring and a proximity switch, the shell is positioned outside the main material bin, the shell is connected with the main material bin through a bolt, the push rod penetrates through the shell and is positioned at the lower end of the cam, the push rod is in clearance fit with the shell and is connected with the cam in a fit manner, the first spring is positioned between the push rod and the shell, the upper wedge block is positioned inside the shell, the upper wedge block slides along the vertical direction of the shell, the lower wedge block is positioned at the lower end of the upper wedge block and is positioned at the bottom of the inner side of the shell, the lower wedge block slides along the left and right direction of the shell, the push rod is positioned at the left side of the lower wedge block and penetrates through the shell, the push rod is in threaded connection with the lower wedge block and is in clearance fit with the shell, the chuck is, the chuck passes through the bolt with push rod and hourglass flitch respectively and links to each other, the second spring be located the push rod outside and be located between chuck and the casing, proximity switch be located the casing outside, proximity switch and casing screw thread link to each other.

Furthermore, the blanking plate is also provided with a blanking hole, the blanking hole penetrates through the main body of the blanking plate, the push rod is pushed downwards in the process of remote rest of the cam, the wedge block is driven to slide leftwards through the upper wedge block, so that the push rod is pushed to drive the blanking plate fixedly connected with the chuck to slide leftwards, the blanking hole in the blanking plate is right opposite to the shunting hole, blanking is realized, in the process of near rest of the cam, the first spring and the second spring reset, the push rod is pushed to move upwards, rightward sliding of the blanking plate is realized, the blanking hole in the blanking plate is staggered with the shunting hole, and blocking is realized.

Compared with the prior art, the rain-type sand feeding bin is in an initial state, raw materials are loaded into the main material bin through the feeding pipe, the raw materials fall into the cavity between the material distributing hole and the material pipe, and the auxiliary materials in the auxiliary material bin are stored at the tail end of the material pipe due to the fact that the bottom of the material pipe is level with the material leaking plate. The during operation, first buncher drives the cam through the pivot and rotates, thereby drive reciprocal locking mechanism action and pull out or push the flitch that leaks along the closing plate, make the discharge hole on the discharge plate align with the reposition of redundant personnel hole on the distributor or separate, realize unloading or putty, when discharge hole on the discharge plate aligns with the reposition of redundant personnel hole on the distributor, the compressed air of blowing into in the jet-propelled subassembly through the trachea, make the raw materials blow away, get into cloth mechanism with higher speed after mixing, second buncher drives the second gear rotation on the cloth mechanism through first gear, make the raw materials from toper distributing device center to marginal cloth, realize rain formula cloth, the protection casing is used for preventing revealing of raw materials. The device simple structure through the clearance feed, the form of rotatory cloth realizes drenching formula shakeout, improves the homogeneity that adds the sand.

Drawings

FIG. 1 shows a front view of the invention

FIG. 2 is a schematic view of the distributor block structure of the present invention

FIG. 3 is a schematic view showing the structure of the distributing mechanism of the present invention

FIG. 4 is a schematic view showing the structure of a fixing tube according to the present invention

FIG. 5 shows a schematic view of a conical distributor according to the invention

FIG. 6 shows a schematic view of the structure of the jet module of the present invention

FIG. 7 is a schematic view showing the structure of the reciprocal locking mechanism of the present invention

FIG. 8 is a schematic view of a material leaking plate structure according to the present invention

In the figure: the device comprises a main stock bin 1, a distributing block 2, a distributing mechanism 3, an air pipe 4, an air injection assembly 5, a first speed regulating motor 6, a rotating shaft 7, a cam 8, a reciprocating locking mechanism 9, a leakage plate 10, a sealing plate 11, an auxiliary material bin 12, a material pipe 13, a second speed regulating motor 14, a first gear 15, a protective cover 16, a feeding pipe 101, a diversion hole 201, a fixed pipe 301, a rotating pipe 302, a steel ball 303, a plug 304, a conical concentration pipe 305, a conical distributor 306, a second gear 307, a limiting groove 308, a distributing groove 309, a distributing hole 310, a material guiding part 311, a transition bent pipe 501, a spray pipe 502, an upper spray head 503, an accelerating mechanism 504, a transverse pipe 505, an inclined pipe 506, a lower spray head 507, a screw part 508, a shell 901, a top rod 902, a first spring 903, an upper wedge 904, a lower wedge 905, a push rod 906, a clamp head 907, a second spring 908, an approach switch.

Detailed Description

As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, the deluge sand feeding bin comprises a main bin 1, a distributing block 2, a distributing mechanism 3, an air pipe 4, an air injection assembly 5, a first speed regulating motor 6, a rotating shaft 7, a cam 8, a reciprocating locking mechanism 9, a material leaking plate 10, a sealing plate 11, an auxiliary material bin 12, a material pipe 13, a second speed regulating motor 14, a first gear 15 and a protective cover 16, wherein the distributing block 2 is arranged at the lower end of the main bin 1, the distributing block 2 is connected with the main bin 1 through bolts, the distributing mechanism 3 is arranged at the lower end of the distributing block 2, the distributing mechanism 3 is connected with the distributing block 2 through bolts, the air pipe 4 is arranged at the outer side of the distributing block 2, the air pipe 4 is connected with the distributing block 2 through bolts, one end of the air injection assembly 5 extends into the air injection distributing block 2, the air injection assembly 5 is respectively connected with the distributing block 2 and the air pipe 4 through bolts, the first speed regulating motor 6 is positioned at the right side of the main stock bin 1, the first speed regulating motor 6 is connected with the main stock bin 1 through bolts, the rotating shaft 7 is positioned at the lower end of the first speed regulating motor 6, the rotating shaft 7 is connected with the first speed regulating motor 6 through bolts, the cam 8 is positioned at the lower end of the rotating shaft 7, the cam 8 is connected with the rotating shaft 7 through bolts, the reciprocating locking mechanism 9 is positioned at the lower end of the cam 8 and positioned at the outer side of the main stock bin 1, the reciprocating locking mechanism 9 is connected with the main stock bin 1 through bolts, the leakage plate 10 penetrates through the distributing block 2 and positioned at the lower end of the air injection assembly 5, the leakage plate 10 slides along the distributing block 2, the sealing plate 11 is positioned at the outer side of the distributing block 2 and penetrated through by the leakage plate 10, the sealing plate 11 is connected with the distributing block 2 through bolts, the auxiliary stock bin 12 is positioned at the upper end of the, the auxiliary material bin 12 is connected with the main material bin 1 through bolts, the material pipe 13 is positioned at the lower end of the auxiliary material bin 12 and extends into the distributing block 2, the material pipe 13 is connected with the auxiliary material bin 12 in a welding mode, the second speed regulating motor 13 is positioned on the left side of the distributing block 2, the second speed regulating motor 14 is connected with the distributing block 2 through bolts, the first gear 15 is positioned at the lower end of the second speed regulating motor 14, the first gear 15 is connected with the second speed regulating motor 14 through bolts, the protective cover 16 is positioned at the lower end of the distributing block 2 and is positioned on the outer side of the distributing mechanism 3, the protective cover 16 is connected with the distributing block 2 through bolts, the main material bin 1 is further provided with a material inlet pipe 101, the material inlet pipe 101 is connected with the main material bin 1 through bolts, the distributing block 2 is further provided with a distributing hole 201, the distributing hole 201 penetrates through the main body of the distributing block 2, and the axis of the distributing hole 201 is respectively coincided with the axis of the, the distributing mechanism 3 comprises a fixed pipe 301, a rotating pipe 302, a steel ball 303, a plug 304, a conical concentrated pipe 305, a conical distributing device 306 and a second gear 307, wherein the fixed pipe 301 is positioned at the lower end of the distributing block 2, the fixed pipe 301 is connected with the distributing block 2 through a bolt, the rotating pipe 302 is positioned at the lower end of the fixed pipe 301, the rotating pipe 302 is connected with the fixed pipe 301 in a clearance fit manner, the steel ball 303 is positioned between the fixed pipe 301 and the rotating pipe 302, the plug 304 penetrates through the rotating pipe 302, the plug 304 is in threaded connection with the rotating pipe 302, the conical concentrated pipe 305 is positioned at the lower end of the inner side of the fixed pipe 301, the conical concentrated pipe 305 is in welded connection with the fixed pipe 301, the conical distributing device 306 is positioned at the lower end of the rotating pipe 302 and extends into the conical concentrated pipe 305, the conical distributing device 306 is in welded connection with the rotating pipe 302, the second gear 307 is positioned at the top of the rotating pipe 302 and is positioned at the outer side of the first gear, the second gear 307 is connected with the rotating pipe 302 through a bolt and is meshed with the first gear 15, the fixed pipe 301 is further provided with a limiting groove 308, the limiting groove 308 is positioned on the outer side of the fixed pipe 301, the limiting groove 308 does not penetrate through the main body of the fixed pipe 301, the tapered distributing device 306 is further provided with a distributing groove 309, distributing holes 310 and material guiding parts 311, the distributing groove 309 is positioned on the outer side of the tapered distributing device 306, the distributing groove 309 does not penetrate through the main body of the tapered distributing device 306, the number of the distributing holes 310 is not less than 2, the distributing holes 310 are arranged at equal intervals along the distributing groove 309, the distributing holes 310 penetrate through the main body of the tapered distributing device 306, the material guiding parts 311 are positioned at the top of the tapered distributing device 306, the material guiding parts 311 are welded with the tapered distributing device 306, the second speed regulating motor 14 drives the second gear 307 to rotate through the first gear 15, and the steel ball 303 arranged in the limiting groove 308 freely rotates, the rotating pipe 302 can rotate smoothly along the fixed pipe 301, and since the conical concentration pipe 305 is shaped like an inverted 'cone', the powder mixed again by the air injection assembly 5 is gathered in the conical concentration pipe 305, and at the same time, the conical distributor 306 is shaped like a positive 'cone' and is inserted into the conical concentration pipe 305, so that when the conical distributor 306 rotates along with the rotating pipe 302, the powder slides along the distribution chute 309 through the material guiding portion 311 and is distributed through the distribution holes 310, thereby realizing distribution from the center to the edge of the conical distributor 306, in the process, the air injection assembly 5 works all the time, and pushes the powder in the conical concentration pipe 305 to accelerate distribution along the conical distributor 306, thereby preventing problems of unsmooth powder blanking and the like, wherein the air injection assembly 5 comprises a transition elbow 501, a spray pipe 502, an upper spray nozzle 503 and an acceleration mechanism 504, the transition elbow 501 is located at the lower end of the air pipe and is located outside the distribution block, the transition bent pipe 501 is in threaded connection with the air pipe 4 and is connected with the distributing block 2 through bolts, the spray pipe 502 is positioned on the outer side of the transition bent pipe 501 and extends into the distributing block 2, the spray pipe 502 is in threaded connection with the transition bent pipe 501, the number of the upper spray nozzles 503 is not less than two, the spray pipe 502 is arranged at the upper end of the upper spray pipe at equal intervals, the number of the acceleration mechanisms 504 is not less than two, the acceleration mechanisms are arranged at the lower end of the spray pipe 502 at equal intervals, each acceleration mechanism 504 comprises a horizontal pipe 505, an inclined pipe 506 and a lower spray nozzle 507, the horizontal pipe 505 is positioned at the lower end of the spray pipe 502, the horizontal pipe 505 is in threaded connection with the spray pipe 502, the number of the inclined pipes 506 is 2, the horizontal pipes 505 are symmetrically arranged along the left and right direction of the horizontal pipe 505, the lower spray nozzles 507 are arranged symmetrically along the left and right direction of the horizontal pipe 505, compressed air is blown into the spray pipe 502 through the air pipe 4, and, the raw materials can be mixed in the blowing process, air in the spray pipe 502 is continuously sprayed out through the horizontal pipe 505, the inclined pipe 506 and the lower spray head 507, the raw materials can be sprayed out through the acute angle of the clamp between the two symmetrically arranged inclined pipes 506 and the horizontal pipe 505, so the raw materials can be sprayed into the distributing mechanism 3 again through accelerated mixing, the reciprocating locking mechanism 9 comprises a shell 901, a push rod 902, a first spring 903, an upper wedge block 904, a lower wedge block 905, a push rod 906, a chuck 907, a second spring 908 and an approach switch 909, the shell 901 is positioned at the outer side of the main storage bin 1, the shell 901 is connected with the main storage bin 1 through bolts, the push rod 902 penetrates through the shell 901 and is positioned at the lower end of the cam 8, the push rod 902 is connected with the shell 901 in a clearance fit manner and is attached to the cam 8, the first spring 903 is positioned between the push rod and the shell 901, the upper wedge block 904 is positioned at the inner, the upper wedge-shaped block 904 slides along the vertical direction of the shell 901, the lower wedge-shaped block 905 is positioned at the lower end of the upper wedge-shaped block 904 and positioned at the bottom of the inner side of the shell 901, the lower wedge-shaped block 905 slides along the left and right direction of the shell 901, the push rod 906 is positioned at the left side of the lower wedge-shaped block 905 and penetrates through the shell 901, the push rod 906 is in threaded connection with the lower wedge-shaped block 905 and is in clearance fit connection with the shell 901, the chuck 907 is positioned at the left side of the push rod 906 and is positioned at the right side of the leakage plate 10, the chuck 907 is respectively connected with the push rod 906 and the leakage plate 10 through bolts, the second spring 908 is positioned at the outer side of the push rod 906 and is positioned between the chuck 907 and the shell 901, the proximity switch 909 is positioned at the outer side of the shell 901, the proximity switch 909 is in threaded connection with the shell 901, the leakage plate 10 is further, the ejector pin 902 is promoted downwards in the process of the cam 8 having a long break, the wedge 905 slides leftwards under the drive of the upper wedge 904, thereby the ejector rod 906 drives the material leaking plate 10 fixedly connected with the chuck 907 to slide leftwards, the material leaking hole in the material leaking plate 10 is right opposite to the shunting hole 201, discharging is realized, and similarly, in the process of the cam 8 having a close break, the first spring 903 and the second spring 908 reset, the ejector pin 902 is promoted to move upwards, the right sliding of the material leaking plate 10 is realized, the material leaking hole 1001 in the material leaking plate 10 is staggered from the shunting hole 201, and material blocking is realized. This rain formula sand feed bin, during initial condition, pack into the raw materials into through inlet pipe 101 in to main feed bin 1, the raw materials falls into the cavity between branch material hole 201 and material pipe 13, because the bottom and the hourglass flitch 10 parallel and level of material pipe 13, the auxiliary material storage in auxiliary material storehouse 12 is at the end of material pipe 13. During operation, the first adjustable speed motor 6 drives the cam 8 to rotate through the rotating shaft 7, so as to drive the reciprocating locking mechanism 9 to move to pull out or push the material leaking plate 10 along the sealing plate 11, so that the material leaking hole in the material leaking plate 10 is aligned with or separated from the shunting hole 201 in the distributing block 2, thereby realizing blanking or material blocking, when the material leaking hole in the material leaking plate 10 is aligned with the shunting hole 201 in the distributing block 2, compressed air is blown into the air injection assembly 5 through the air pipe 4, so that raw materials are blown away and mixed and then enter the distributing mechanism 3 at an accelerated speed, the second adjustable speed motor 14 drives the second gear 307 on the distributing mechanism 3 to rotate through the first gear 15, so that the raw materials are distributed from the center of the conical distributing device 306 to the edge, thereby realizing the rain-type distributing, and the protective cover 16 is used for preventing the leakage. The device simple structure through the clearance feed, the form of rotatory cloth realizes drenching formula shakeout, improves the homogeneity that adds the sand.

The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception, and fall within the scope of the present invention.