CN110961573B

CN110961573B - Discrete distribution forming mechanism of casting sand mould

Info

Publication number: CN110961573B
Application number: CN201911328313.9A
Authority: CN
Inventors: 胡能静; 费先江; 张冠
Original assignee: Jiangsu Grinka Machinery Co ltd
Current assignee: JIANGSU GRINKA MACHINERY Co.,Ltd.
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2021-07-02
Anticipated expiration: 2039-12-20
Also published as: CN110961573A

Abstract

The invention provides a discrete distribution forming mechanism of a casting sand mold, which comprises a rectangular lower charging barrel, wherein the left side surface of the lower charging barrel is provided with a first inserting port, the right side surface of the lower charging barrel is provided with a second inserting port, the first inserting port and the second inserting port are both provided with a plurality of connectors and are respectively arranged along the length direction of the lower charging barrel in an array manner, the first inserting port and the second inserting port are arranged in a staggered manner, the first inserting port is internally movably inserted with a first rectangular impact plate matched with the first inserting port, the first impact plate and the lower charging barrel form a sealed sliding guide fit along the opening direction of the first inserting port, the second inserting port is movably inserted with a second rectangular impact plate matched with the second inserting port, the first impact plate and the second impact plate are both arranged to be capable of being switched between an inserting state and a pulling-out state, and the first impact plate and the second impact plate are switched between the inserting state and the pulling-out state at high speed, and breaking the blocky broken sand mould into sand and impurities.

Description

Discrete distribution forming mechanism of casting sand mould

Technical Field

The invention relates to the technical field of sand mold casting, in particular to a discrete type distribution forming mechanism for casting sand molds.

Background

At present, the composition of broken sand mould mainly contains three part, its the caking of one is the grit, its two are the pimple that the metal liquid condenses, its three are the pimple that the metal liquid mixes the condensation with the grit, and both back are collectively called impurity, if need retrieve the grit and recycle, at first need break up broken sand mould, then filter separation and respectively outwards discharge to grit and impurity, the operation personnel collect the grit and utilize the sand of this part to make the sand mould again, in order to promote the scattered efficiency of operation personnel to broken sand mould, it is ingenious to necessary provide a structure, the principle is simple, the operation is convenient, can carry out the striking of the cubic broken sand mould that scatters fast and break up the mechanism.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide the impact type mould sand renewing and cleaning machine which is ingenious in structure, simple in principle, convenient and fast to operate and use and can separate sand and impurities in a broken sand mould.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

The casting sand mold discrete distribution forming mechanism comprises a floor-type mounting frame (101), a rectangular bottom plate (102) is fixedly arranged at the top of the mounting frame (101), a rectangular top plate (103) which is right opposite to the bottom plate (102) and has the same size with the bottom plate, a connecting plate (104) which is fixedly connected with the bottom plate (102) and the top plate (103) along one end in the length direction is arranged above the bottom plate (102), a rectangular lower charging barrel (105) is fixedly arranged at the middle position of the bottom plate (102) and the top plate (103) along the length direction in a penetrating manner, the lower charging barrel (105) is vertically arranged and is provided with openings at the upper end and the lower end, an opening at the upper end of the lower charging barrel (105) is an input end, an opening at the lower end is an output end, the input end of the lower charging barrel (105) extends to the upper part of the top plate (103) and is connected and communicated with the output end of a discharging mechanism, the left side surface of the lower charging barrel (105) close to the connecting plate (104) is provided with a rectangular first plug-in port (106 a), the right side surface of the lower charging barrel close to the connecting plate (104) is provided with a rectangular second plug-in port (106 b), the first plug-in port (106 a) and the second plug-in port (106 b) are identical in size and parallel to the width of the side surface of the lower charging barrel (105), the first plug-in port (106 a) and the second plug-in port (106 b) are respectively provided with a plurality of rectangular first plug-in plates (107 a) matched with the first plug-in port (106 a), the first plug-in plate (107 a) and the lower charging barrel (105) are arranged in an array mode along the length direction of the first plug-in port (106 a) and in a sealed sliding guide fit mode, the second plug-in port (106 b) is movably inserted with the second plug-in plate (107 b) matched with the first plug-in port (106 a mode and forms a sealed sliding guide fit along the opening direction of the first plug-in The lower charging barrel (105) and the first plugging plate (107 a) and the second plugging plate (107 b) form sliding guide fit along the opening direction of the second plugging port (106 b), the first plugging plate (107 a) and the second plugging plate (107 b) are arranged to be capable of being switched between a plugging state and a pulling-out state, the first plugging plate (107 a) and the second plugging plate (107 b) in the plugging state are overlapped in the vertical direction, the first plugging plate (107 a)/the second plugging plate (107 b) in the pulling-out state are flush with the inner side wall of the lower charging barrel (105) on the corresponding side, and the first plugging plate (107 a) and the second plugging plate (107 b) are switched between the plugging state and the pulling-out state at high speed to break up the blocky sand crushing mold into sand and impurities.

As a further optimization or improvement of the present solution.

The two plugging plates I (107 a)/two plugging plates II (107 b) which are positioned at the same side and are adjacent up and down are switched between the plugging state and the unplugging state in opposite processes.

As a further optimization or improvement of the present solution.

The two adjacent plugging plates I (107 a) and II (107 b) on the left and right at the opposite sides are switched to each other in the opposite process between the plugging state and the unplugging state.

As a further optimization or improvement of the present solution.

The improved structure of the charging barrel is characterized in that crankshafts (108) which are vertically arranged in the axial direction are rotatably arranged between the bottom plate (102) and the top plate (103), the crankshafts (108) are arranged in two and are respectively arranged between the side face of the charging barrel (105) and the connecting plate (104), the crankshaft (108) positioned on the left side is matched with the first plug-in board (107 a), the crankshaft (108) positioned on the right side is matched with the second plug-in board (107 b), one ends, close to the connecting plate (104), of the first plug-in board (107 a) and the second plug-in board (107 b) are provided with socket joints (109) which penetrate through the connecting plate up and down and are arranged along the width direction of the connecting plate, the socket joints (109) are sleeved on connecting rod journals of the cranks (108), and the connecting rod journals and the socket joints (109) can.

As a further optimization or improvement of the present solution.

The upper ends of the two crankshafts (108) movably penetrate through the top plate (103), a synchronous transmission component (110) used for connecting the two crankshafts (108) is arranged between the upper ends of the two crankshafts (108), the synchronous transmission component (110) comprises synchronous belt wheels (111) coaxially and fixedly sleeved on the upper ends of the crankshafts (108), and turning wheels (112) which are rotatably arranged on the upper end surface of the top plate (103) and are vertical in the axial direction, the turning wheels (112) and the synchronous belt wheels (111) are positioned on the same plane, the turning wheels (112) are provided with four turning wheels and are respectively positioned outside the corners of the input end of the lower charging barrel (105), a synchronous belt (113) used for connecting the two crankshafts (111) is arranged between the two synchronous belt wheels, the synchronous belts (113) are respectively wound on the turning wheels (112), one crankshaft (108) is connected with the output end of the power driving device (500) and the power driving device, the synchronous transmission component (110) drives the other crankshaft (108) to synchronously rotate.

Compared with the prior art, the sand breaking device has the advantages of ingenious structure, simple principle, convenience in operation and use and capability of quickly breaking up broken sand molds.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic view of the overall structure of the present invention.

Fig. 4 is a schematic structural view of the striking mechanism.

Fig. 5 is a schematic view of the structure of the striking structure.

FIG. 6 is a cross-sectional view of the lower cartridge.

Fig. 7 is a schematic view of the internal structure of the feed barrel.

Fig. 8 is a partial structural schematic view of the striking mechanism.

Fig. 9 is a schematic structural view of a synchronous drive member.

Fig. 10 is a matching view of the striking mechanism and the blanking mechanism.

Fig. 11 is a schematic structural view of the discharging hopper.

Fig. 12 is a partial structural schematic diagram of the blanking mechanism.

Fig. 13 is a partial structural schematic view of the striking mechanism.

Fig. 14 is a view showing the cleaning member and the lower hopper in combination.

Fig. 15 is a partial structural view of the cleaning member.

Fig. 16 is a partial structural view of the cleaning member.

Fig. 17 is a partial structural view of the cleaning member.

Fig. 18 is a partial structural view of the cleaning member.

Fig. 19 is a view showing the cleaning driving member and the cleaning member.

FIG. 20 is a view showing the combination of the transport mechanism and the feed cylinder and discharge mechanism.

Fig. 21 is a view showing the combination of the conveying mechanism and the discharging mechanism.

Fig. 22 is a schematic structural view of the conveying mechanism.

Fig. 23 is a partial schematic view of the delivery mechanism.

Fig. 24 is a schematic view of the discharge mechanism.

Fig. 25 is an exploded schematic view of the discharge mechanism.

Fig. 26 is a cross-sectional view of the discharge mechanism.

Fig. 27 is a partial structural schematic view of the discharge mechanism.

FIG. 28 is a drawing showing the power driving device in cooperation with a crankshaft, an auger, and a driving shaft.

Labeled as:

100. an impact mechanism; 101. a mounting frame; 102. a base plate; 103. a top plate; 103a, a vibration guide rod; 103b, a limit snap ring; 103c, a first buffer spring; 103d, a second buffer spring; 104. a connecting plate; 105. feeding the material barrel; 106a and a first interface; 106b and a second interface; 107a and a first plugboard; 107b and a second plugboard; 108. a crankshaft; 109. a socket; 110. a synchronous drive member; 111. a synchronous pulley; 112. a turning wheel; 113. a synchronous belt;

200. a blanking mechanism; 201. feeding a hopper; 202. a trash removal guide plate; 203. coarse filtration; 204. a vibrator; 205. a support plate; 210. a cleaning member; 211. a slide bar; 212. a slider; 213. a deflector rod; 214a, bumps; 214b, a flat slot; 215a, a driving pulley; 215b, a driven pulley; 215c, a belt; 216. a drive block; 220. a cleaning drive member; 221. a first main shaft; 222. a first belt transmission assembly; 223. cleaning a motor; 224. a first driving bevel gear; 225. a driven bevel gear I;

300. a conveying mechanism; 301. a first conveying pipeline; 302. a second conveying pipeline; 303. a packing auger;

400. a discharge mechanism; 401. a discharge cylinder; 402. a discharge conduit; 403. a pipe bending joint; 404. a fine filter screen; 405. a sand discharge hopper; 406. a baffle plate; 407. a turntable; 408. ejecting a plate; 409. a drive shaft;

500. a power drive device; 510. a main motor; 520. a second main shaft; 521. a second driving bevel gear; 522. a driven bevel gear II; 530. a third main shaft; 531. a belt transmission assembly II; 532. a driving bevel gear III; 533. and a driven bevel gear III.

Detailed Description

The broken sand mold mainly comprises three parts, wherein one part is agglomeration of sand, the other part is pimple formed by coagulation of molten metal, and the third part is pimple formed by mixing and coagulating molten metal and sand, and the latter two parts are collectively called as impurities.

Referring to fig. 1-28, an impact type mold sand retreading cleaning machine comprises an impact mechanism 100, a blanking mechanism 200, a conveying mechanism 300, a discharging mechanism 400 and a power driving device 500, wherein an output end of the blanking mechanism 200 is connected with an input end of the impact mechanism 100, an output end of the impact mechanism 100 is connected with an input end of the conveying mechanism 300, an output end of the conveying mechanism 300 is connected with an input end of the discharging mechanism 400, the blanking mechanism 200 is used for filtering and removing large impurities in broken sand molds and conveying the broken sand molds into the impact mechanism 100, the impact mechanism 100 is used for impacting and scattering the broken sand molds and discharging the broken sand molds into the conveying mechanism 300, the conveying mechanism 300 is used for conveying the scattered broken sand molds to the discharging mechanism 400, the discharging mechanism 400 is used for filtering and separating sand and small impurities in the scattered broken sand molds and discharging the sand and the small impurities respectively outwards, the power driving device 500 is used for providing driving power for the impact mechanism 100, the conveying mechanism 300 and the discharging mechanism 400.

When the sand mold discharging mechanism is used, a user places a broken sand mold into the discharging mechanism 200, the discharging mechanism 200 enables the broken sand mold to gradually fall into small blocks through mechanical vibration and fall into the impact mechanism 100, meanwhile, large impurities are left in the discharging mechanism 200 and cleaned out, the impact mechanism 100 impacts and breaks the small blocks of broken sand mold and forms a mixture of sand and small impurities, then the mixture of the sand and the small impurities is conveyed into the discharging mechanism 400 through the conveying mechanism 300, the discharging mechanism 400 filters and separates the mixture of the sand and the small impurities and enables the sand and the small impurities to be discharged outwards respectively, and an operator collects and reuses the discharged pure sand to form the sand mold.

The striking mechanism 100 comprises a floor-type mounting frame 101, a rectangular bottom plate 102 is fixedly arranged at the top of the mounting frame 101, a rectangular top plate 103 which is opposite to the bottom plate 102 and has the same size with the bottom plate 102 is arranged above the bottom plate 102, a connecting plate 104 which is fixedly connected with the bottom plate 102 and the top plate 103 is arranged at one end of the bottom plate 102 and the top plate 103 along the length direction, a rectangular blanking barrel 105 is fixedly arranged at the middle position of the bottom plate 102 and the top plate 103 along the length direction in a penetrating way, the blanking barrel 105 is vertically arranged and is provided with an upper end and a lower end which are open, the upper end opening of the blanking barrel 105 is an input end, the lower end opening is an output end, the input end of the blanking barrel 105 extends to the upper part of the top plate 103 and is communicated with the output end of the blanking mechanism 200, the output end extends to the lower part of the bottom plate, the left side surface of the lower charging barrel 105, which is close to the connecting plate 104, is provided with a rectangular first inserting port 106a, the right side surface of the lower charging barrel 105 is provided with a rectangular second inserting port 106b, the sizes of the first inserting port 106a and the second inserting port 106b are the same, the length of the first inserting port 106a is parallel to the width of the side surface of the lower charging barrel 105, the first inserting port 106a and the second inserting port 106b are respectively arranged in an array mode along the length direction of the lower charging barrel 105, the first inserting port 106a and the second inserting port 106b are arranged in a staggered mode, a first rectangular inserting plate 107a matched with the first inserting port 106a is movably inserted into the first inserting port 106a, the first inserting plate 107a and the lower charging barrel 105 form a sealed sliding guide fit along the opening direction of the first inserting port 106a, a second rectangular inserting plate 107b matched with the first inserting port 106a is movably inserted into the second inserting port 106b, and the second inserting plate 107b and the lower charging barrel, the first plug board 107a and the second plug board 107b are arranged to be capable of being switched between a plug-in state and a pull-out state, the first plug board 107a and the second plug board 107b in the plug-in state are overlapped in the vertical direction, the first plug board 107 a/the second plug board 107b in the pull-out state are flush with the inner side wall of the blanking barrel 105 on the corresponding side, and small block-shaped broken sand molds are broken into sand and small impurities by switching between the plug-in state and the pull-out state at high speed through the first plug board 107a and the second plug board 107 b.

Specifically, in order to improve the scattering efficiency of the first plugboard 107a and the second plugboard 107b on the small-block-shaped broken sand mold, the processes of the two plugboards 107 a/107 b which are positioned on the same side and are adjacent up and down are switched between the plugging state and the unplugging state are opposite, the processes of the two

plugboards

107a and 107b which are positioned on the opposite side and are adjacent left and right are switched between the plugging state and the unplugging state are opposite, and the small-block-shaped broken sand mold is alternatively impacted through the first plugboard 107a and the second plugboard 107b, so that the scattering efficiency of the small-block-shaped broken sand mold is improved.

More specifically, in order to drive the first socket plate 107a and the second socket plate 107b to switch between the plugged state and the removed state in a reciprocating manner at a high speed, a crankshaft 108 is rotatably disposed between the bottom plate 102 and the top plate 103, the crankshafts 108 are vertically disposed in an axial direction, the crankshafts 108 are disposed between the side surface of the lower barrel 105 and the connecting plate 104, the crankshaft 108 on the left side is adapted to the first socket plate 107a, the crankshaft 108 on the right side is adapted to the second socket plate 107b, one ends of the first socket plate 107a and the second socket plate 107b, which are close to the connecting plate 104, are provided with sockets 109 penetrating up and down and disposed along the width direction thereof, the sockets 109 are sleeved on connecting rod journals of the cranks 108, and the connecting rod journals and the sockets 109 can form a sliding guiding fit along the width direction of the first socket plate 107 a/the second socket plate 107b, by driving the cranks 108 to, the first plug board 107a and the second plug board 107b are driven.

More specifically, in order to enable the two crankshafts 108 to be driven synchronously, the upper ends of the two crankshafts 108 penetrate through the top plate 103 in a movable manner, a synchronous transmission member 110 for connecting the two crankshafts 108 is arranged between the upper ends of the two crankshafts 108, the synchronous transmission member 110 comprises a synchronous pulley 111 coaxially and fixedly sleeved on the upper end of the crankshaft 108 and a direction-changing wheel 112 rotatably arranged on the upper end surface of the top plate 103 and vertical to the axial direction, the direction-changing wheel 112 and the synchronous pulley 111 are in the same plane, the direction-changing wheel 112 is provided with four synchronous pulleys and respectively located outside corners of the input end of the lower charging barrel 105, a synchronous belt 113 for connecting the two synchronous pulleys 111 is arranged between the two synchronous pulleys 111, the synchronous belts 113 are respectively wound on the direction-changing wheel 112, the power driving device 500 drives one of the crankshafts 108 to.

In the working process of the impact mechanism 100, the broken sand molds are placed in the blanking mechanism 200, the blanking mechanism 200 gradually scatters into small blocks through mechanical vibration and falls into the blanking cylinder 105 from top to bottom, in the process, the power driving device 500 transmits power to one of the crankshafts 108 and drives the crankshaft 108 to rotate around the axial direction thereof, the synchronous transmission member 110 transmits the power of one of the crankshafts 108 to the other crankshaft 108 and drives the other crankshaft 108 to rotate synchronously, the crankshafts 108 drive the first plug board 107a and the second plug board 107b to perform high-speed reciprocating switching between the insertion state and the extraction state, and the first plug board 107a and the second plug board 107b impact and break up the falling small broken sand molds, so that the small broken sand molds are converted into sand and small impurities and fall into the conveying mechanism 300 from the output end of the blanking barrel 105.

The blanking mechanism 200 is arranged above the top plate 103, the blanking mechanism 200 comprises a square-cone blanking hopper 201 with openings at the upper and lower ends, the opening size of the blanking hopper 201 is gradually increased from bottom to top along the vertical direction, the upper end opening of the blanking hopper 201 is square, the end opening is an input end, the lower end opening is also square, the end opening is an output end, the output end of the blanking hopper 201 is connected and communicated with the input end of the blanking barrel 105, one side of the upper end opening of the blanking hopper 201 is provided with a notch, an impurity discharging guide plate 202 arranged in a downward inclination manner is arranged at the notch, a horizontal coarse strainer 203 is fixedly arranged below the upper end opening of the blanking hopper 201, the coarse strainer 203 is flush with the upper end edge of the impurity discharging guide plate 202, the cross section size of the coarse strainer 203 is consistent with that of the upper end opening of the blanking hopper 201, a vibrator 204 is fixedly arranged on the side of the, the vibrator 204 is used for driving the lower hopper 201 to perform mechanical vibration and vibrating the large block-shaped broken sand mold placed on the coarse strainer 203 into a small block-shaped broken sand mold.

Specifically, in order to effectively support the lower hopper 201 and not affect the vibration of the lower hopper, a square support plate 205 is fixedly sleeved outside the lower hopper 201 close to the opening at the lower end of the lower hopper, a vibration guide rod 103a which is vertically arranged in the axial direction is fixedly arranged on the upper end surface of the top plate 103, four vibration guide rods 103a are arranged in a matrix, corners of the support plate 205 are sleeved on the vibration guide rods 103a and can slide up and down along the vibration guide rods 103a, in order to facilitate the falling-off between the support plate 205 and the vibration guide rods 103a, a limit snap ring 103b is detachably arranged at the top end of the vibration guide rods 103a, in order to buffer the vibration of the lower hopper 201, a buffer spring 103c and a buffer spring two 103d are movably sleeved on the vibration guide rods 103a, the buffer spring one 103c is located above the support plate 205, and the buffer spring two 103d is located, one end of the first buffer spring 103c is abutted against the supporting plate 205, the other end of the first buffer spring is abutted against the limiting snap ring 103b, the elastic force of the first buffer spring 103c is always directed to the supporting plate 205 by the limiting snap ring 103b, one end of the second buffer spring 103d is abutted against the supporting plate 205, the other end of the second buffer spring is abutted against the top plate 103, the elastic force of the second buffer spring 103d is always directed to the supporting plate 205 by the top plate 103, the lower end opening of the lower hopper 201 is movably inserted into the upper end opening of the lower charging barrel 105, and the outer surface of the lower hopper 201 is in.

In the working process of the blanking mechanism 200, an operator places a massive broken sand mold on the coarse screen 203, starts the vibrator 204, the vibrator 204 drives the blanking hopper 201 to vibrate up and down, the massive broken sand mold shakes along with the blanking hopper 201 and scatters into small massive broken sand molds, the small massive broken sand molds penetrate through the coarse screen 203 and fall into the blanking barrel 105 through the blanking hopper 201, large impurities are kept on the coarse screen 203, and the operator discharges the large impurities on the coarse screen 203 through the impurity discharge guide plate 202.

Specifically, in order to facilitate automatic removal of large impurities left on the coarse strainer 203, the blanking mechanism 200 further includes a cleaning member 210 and a cleaning driving member 220, the cleaning member 210 includes a sliding rod 211 fixedly disposed on an inner wall of an opening at an upper end of the blanking hopper 201, an axial direction of the sliding rod 211 is parallel to an opening direction at a notch of the blanking hopper 201 and the sliding rod 211 is located above the coarse strainer 203, two sliding rods 211 are disposed and respectively located at one side of the blanking hopper 201, an elongated slider 212 is disposed between the two sliding rods 211, an end position of the slider 212 in a length direction is movably sleeved on the sliding rod 211 and can slide along an axial direction of the sliding rod 211, a lower end surface of the slider 212 is fixedly provided with a plurality of shift levers 213 vertically disposed in the axial direction, the shift levers 213 extend downward to be flush with the strainer 203, and the shift levers 213 are disposed in an array, in the initial state, the slider 212 is disposed away from the trash discharge guide 202, and the large trash left on the coarse screen 203 is pushed onto the trash discharge guide 202 by driving the slider 212 to slide along the slide bar 211 toward the trash discharge guide 202.

More specifically, in order to drive the slider 212 to slide along the sliding rod 211, the cleaning member 210 further includes a driving pulley 215a and a driven pulley 215b fixedly disposed outside the opening of the lower hopper 201, the driving pulley 215a and the driven pulley 215b are both located on the same side as the sliding rod 211, the driving pulley 215a and the driven pulley 215b are located below the sliding rod 211, the driving pulley 215 a/the driven pulley 215b is rotatably coupled to the lower hopper 201, the axial direction of the driving pulley 215 a/the driven pulley 215b is perpendicular to the axial direction of the sliding rod 211, one end of the driving pulley 215a close to the sliding rod 211, the other end of the driven pulley 215b close to the sliding rod 211, a belt 215c connecting the driving pulley 215a and the driven pulley 215b, a cylindrical driving block 216 is fixedly disposed on the surface of the belt 215c, and the axial direction of the driving block 216 is parallel to the axial direction of the driving pulley 215a, the end position of the slide block 212 along the length direction is fixedly provided with a downward extending convex block 214a, the convex block 214a is positioned outside the opening at the upper end of the lower hopper 201, the convex block 214a is provided with a flat groove 214b which penetrates in the axial direction parallel to the driving block 216 and is vertically arranged, the upper end of the flat groove 214b extends to the upper side of the driven pulley 215b of the driving pulley 215a, the lower end of the flat groove 214b extends to the lower side of the driven pulley 215b of the driving pulley 215a, the driving block 216 is matched with the flat groove 214b and is inserted into the flat groove 214b, the driving block 216 can slide up and down in the flat groove 214b, the slide block 212 can slide towards the impurity removing guide plate 202 along the slide rod 211 by rotating the belt 215c, and the slide block 212 can also rotate along the belt 215c to slide and reset away from the impurity removing guide plate 202 along the slide rod 211.

More specifically, the cleaning driving member 220 includes a first spindle 221 rotatably disposed outside the lower hopper 201, wherein the axial direction of the first spindle 221 is parallel to the axial direction of the driving pulley 215a, a first belt transmission assembly 222 for transmitting the power of the first spindle 221 to the driving pulley 215a is disposed between the end of the first spindle 221 and the two driving pulleys 215a, a cleaning motor 223 fixedly connected to the lower hopper 201 is disposed below the middle position of the first spindle 221 along the length direction thereof, the cleaning motor 223 is a stepping motor, an output shaft of the cleaning motor 223 is vertically disposed in the axial direction and is coaxially and fixedly provided with a first driving bevel gear 224, a first driven bevel gear 225 is coaxially and fixedly sleeved on the first spindle 221 and is engaged with the first driving bevel gear 224 from the first bevel gear 225, the cleaning motor 223 drives the driving pulley 215a to rotate, so as to drive the belt 215c to rotate, thereby driving the slider 212 to slide along the slide bar 211.

During the working process of the cleaning member 210 and the cleaning driving member 220, the cleaning motor 223 is started, the cleaning motor 223 drives the first spindle 221 to rotate, the first belt transmission assembly 222 transmits the power of the first spindle 221 to the driving belt wheel 215a and drives the driving belt wheel 215a to rotate, the driving belt wheel 215a drives the belt 215c to rotate, the belt 215c drives the driving block 216 to synchronously run along with the belt 215c, the driving block 216 and the flat slot 214b are matched to drive the sliding block 212 to slide along the sliding rod 211 close to the impurity removing guide plate 202, the deflector rod 213 deflects the large impurities left on the coarse filter 203 towards the impurity removing guide plate 202 until the large impurities are cleaned onto the impurity removing guide plate 202, and the impurity removing guide plate 202 discharges the large impurities.

The conveying mechanism 300 is arranged below the lower charging barrel 105, the conveying mechanism 300 comprises a first conveying pipeline 301 and a second conveying pipeline 302 which are axially horizontal and fixedly connected with the mounting frame 101, one ends, close to each other, of the first conveying pipeline 301 and the second conveying pipeline 302 are in butt joint communication, the ends, far away from each other, of the first conveying pipeline 301 and the second conveying pipeline 302 are arranged in a closed manner, the first conveying pipeline 301 is located below the lower charging barrel 105, the first conveying pipeline 301 is connected and communicated with an opening at the lower end of the lower charging barrel 105, the connection position is positioned on the outer circular surface of the first conveying pipeline 301, the first conveying pipeline 301 and the second conveying pipeline 302 are internally coaxially and rotatably provided with packing augers 303 matched with the first conveying pipeline 301, one end of each packing auger 303 is in rotating connection and matching with the closed end of the first conveying pipeline 301, the other end of each packing auger 303 is in rotating connection and matching with the closed end of the second conveying pipeline 302, the second conveying pipeline 302 is connected and connected with the discharge mechanism 400, the packing auger 303 is driven to rotate by the power driving device 500, and the scattered sand and small impurities are conveyed into the discharging mechanism 400.

The discharge mechanism 400 comprises a discharge cylinder 401 which is arranged below the second conveying pipeline 302 and fixedly connected with the mounting frame 101, the discharge cylinder 401 is arranged with an upward opening and is axially and obliquely arranged, an included angle formed between the central line of the discharge cylinder 401 and the horizontal plane is 45-60 degrees, the bottom of the discharge cylinder 401 is coaxially and rotatably provided with a rotating disc 407, the diameter of the rotating disc 407 is equal to that of the discharge cylinder 401, the upper end face of the rotating disc 407 is fixedly provided with an obliquely arranged rectangular ejection plate 408, the ejection plate 408 is provided with a plurality of ejection plates and is arranged in an array along the circumferential direction of the rotating disc 407, the length direction of the ejection plate 408 is arranged along the radial direction of the rotating disc 407, one end of the ejection plate 408 along the length direction extends to the edge of the rotating disc 407, the other end of the ejection plate is gathered at the central position of the rotating disc 407, the included angle formed by the ejection plate 408 and the plane of the rotating disc 407 is 30 degrees, the lower end, the second conveying pipeline 302 is connected with the material discharge cylinder 401 and the communicating position is located right above the rotary disc 407, the material discharge mechanism 400 further comprises a rectangular material discharge pipeline 402 which is obliquely arranged, the length direction of the material discharge pipeline 402 is perpendicular to the axis direction of the material discharge cylinder 401, the input end of the material discharge pipeline 402 is flush with the upper end opening of the material discharge cylinder 401, a ninety-degree elbow joint 403 for connecting and communicating the two is arranged between the input end of the material discharge pipeline 402 and the upper end opening of the material discharge cylinder 401, sand and small impurities can be separated, a fine filter screen 404 which is communicated with the inner portion of the material discharge pipeline 402 is arranged on the lower end face of the middle position of the material discharge pipeline 402 along the length direction, and a sand discharge hopper 405 which is fixedly connected with the material discharge pipeline 402 is arranged below the fine filter screen 404, and.

In particular, in order to sufficiently separate the sand and the small impurity mixture ejected into the discharge pipe 402 by the ejection plate 408 and avoid direct discharge from the output end of the discharge pipe 402 without contact with the fine screen 404, an obliquely arranged baffle 406 is fixedly arranged on the upper inner wall of the discharge pipe 402, the baffle 406 is positioned above the fine screen 404 and the distance between the baffle 406 and the fine screen 404 is gradually narrowed from the input end of the conveying pipe 402 to the output end.

In the working process of the conveying mechanism 300 and the discharging mechanism 400, the power driving device 500 drives the packing auger 303 to rotate, the packing auger 303 conveys sand and small impurities into the discharging cylinder 401 and downwards falls onto the rotary table 407, meanwhile, the power driving device 500 drives the driving shaft 409 to rotate, the driving shaft 409 drives the rotary table 407 to rotate, the rotary table 407 drives the ejection plate 408 to rotate and to impact and eject the falling sand and small impurities into the elbow joint 403, then the falling sand falls into the discharging pipeline 402, when sliding through the fine filter screen 404, the sand passes through the fine filter screen 404 and falls into the discharging hopper 405 and is discharged outwards, the small impurities continuously slide and are discharged outwards from the output end of the discharging pipeline 402, so that the separation of the sand and the small impurities is realized, in the scheme, the ejection plate 408 impacts the sand and the small impurities again to realize the re-scattering of the small-blocky sand, the sand can be completely separated from the small impurities.

The power driving device 500 is arranged below the conveying mechanism 300, the power driving device 500 comprises a main motor 510 fixedly connected with the mounting frame 100, a second main shaft 520 rotatably arranged on the mounting frame 101, and a third main shaft 530 rotatably arranged on the mounting frame 101, the axial direction of an output shaft of the main motor 510, the axial direction of the second main shaft 520, and the axial direction of the third main shaft 530 are vertically arranged, the output shaft of the main motor 510 is coaxially and fixedly connected with the driving end of the second main shaft 520, and the output end of the second main shaft 520 is coaxially and fixedly connected with the driving end of one of the crankshafts 108.

In order to drive the packing auger 303 to rotate, a driving bevel gear II 521 is coaxially and fixedly sleeved on the second main shaft 520, the driving end of the packing auger 303 extends to the outside of the first conveying pipeline 301, and a driven bevel gear II 522 meshed with the driving bevel gear II 521 is coaxially and fixedly sleeved at the end of the second conveying pipeline.

In order to drive the driving shaft 409 to rotate, a second belt transmission assembly 531 for connecting the output shaft of the main motor 510 and the driving end of the third main shaft 530 is arranged between the output shaft of the main motor 510 and the driving end of the third main shaft 530, the second belt transmission assembly 521 is used for transmitting power on the output shaft of the main motor 510 to the driving end fan of the third main shaft 530 and driving the third main shaft 530 to rotate around the axial direction of the third main shaft, a third driving bevel gear 532 is coaxially and fixedly sleeved on the output end of the third main shaft 530, and a third driven bevel gear 533 meshed with the third driving bevel gear 532 is.

In the working process of the power driving device 500, the main motor 510 is started, the main motor 510 drives the second main shaft 520 to rotate, the second main shaft 520 drives the crankshaft 108 to rotate and enable the impact mechanism 100 to operate normally, the second driving bevel gear 521 is matched with the second driven bevel gear 522 to transmit the power of the second main shaft 520 to the auger 303 and drive the auger 303 to rotate, the conveying mechanism 300 operates normally, the second belt transmission component 531 transmits the power on the output shaft of the main motor 510 to the third main shaft 530 and drives the third main shaft 530 to rotate, and the third driving bevel gear 532 is matched with the third driven bevel gear 533 to transmit the power of the third main shaft 530 to the driving shaft 409 and enable the discharge mechanism 400 to operate normally.

Claims

1. Casting sand mold's discrete distribution forming mechanism, its characterized in that: the automatic feeding device comprises a floor-type mounting frame (101), a rectangular bottom plate (102) is fixedly arranged at the top of the mounting frame (101), a rectangular top plate (103) which is opposite to the bottom plate (102) and has the same size with the bottom plate, a connecting plate (104) which is fixedly connected with the bottom plate (102) and the top plate (103) is arranged above the bottom plate (102), a rectangular lower charging barrel (105) is fixedly arranged at the middle position of the bottom plate (102) and the top plate (103) along the length direction in a penetrating manner, the lower charging barrel (105) is vertically arranged and is provided with openings at the upper end and the lower end, the opening at the upper end of the lower charging barrel (105) is an input end, the opening at the lower end is an output end, the input end of the lower charging barrel (105) extends to the upper part of the top plate (103), the input end of the lower charging barrel (105) is connected and communicated with the output end of a feeding mechanism (200, the left side surface of the lower charging barrel (105) close to the connecting plate (104) is provided with a rectangular first inserting port (106 a), the right side surface of the lower charging barrel close to the connecting plate (104) is provided with a rectangular second inserting port (106 b), the sizes of the first inserting port (106 a) and the second inserting port (106 b) are the same, the length direction of the first inserting port (106 a) and the second inserting port (106 b) is parallel to the width direction of the side surface of the lower charging barrel (105), the first inserting port (106 a) and the second inserting port (106 b) are arranged in an array mode along the length direction of the lower charging barrel (105), the first inserting port (106 a) and the second inserting port (106 b) are arranged in a staggered mode, a rectangular first inserting plate (107 a) matched with the first inserting port (106 a) is movably inserted into the first inserting port (106 a), a sealed sliding guide matching is formed between the first inserting plate (107 a) and the lower charging barrel (105) along the opening direction of the first inserting port (106 a), and a second inserting plate (107 b) matched (107b) The lower charging barrel (105) is in sliding guide fit with the opening direction of the second plugging port (106 b), the first plugging plate (107 a) and the second plugging plate (107 b) are arranged to be capable of being switched between a plugging state and a pulling-out state, the first plugging plate (107 a) and the second plugging plate (107 b) in the plugging state are overlapped in the vertical direction, the first plugging plate (107 a) and the second plugging plate (107 b) in the pulling-out state are flush with the inner side wall of the lower charging barrel (105) on the corresponding side, and the first plugging plate (107 a) and the second plugging plate (107 b) are switched between the plugging state and the pulling-out state at high speed to break up the blocky sand crushing mold into sand and impurities;

the processes of the two plug boards I (107 a) or two plug boards II (107 b) which are positioned on the same side and are adjacent up and down are switched between the plug-in state and the plug-out state;

the two adjacent left and right plugboards I (107 a) and II (107 b) which are positioned on different sides are switched between the plugging state and the unplugging state in opposite processes;

the crankshaft (108) which is vertically arranged in the axial direction is rotatably arranged between the bottom plate (102) and the top plate (103), the two crankshafts (108) are arranged between the side face of the lower charging barrel (105) and the connecting plate (104), the crankshaft (108) positioned on the left side is matched with the first plug-in board (107 a), the crankshaft (108) positioned on the right side is matched with the second plug-in board (107 b), one ends, close to the connecting plate (104), of the first plug-in board (107 a) and the second plug-in board (107 b) are provided with socket joints (109) which penetrate up and down and are arranged along the width direction of the connecting plate (104), the socket joints (109) are sleeved on connecting rod journals of the crankshafts (108), and the connecting rod journals and the socket joints (109) can form sliding guide fit along the width direction of the first plug-in board (107 a;

the upper ends of the two crankshafts (108) movably penetrate through the top plate (103), a synchronous transmission component (110) used for connecting the two crankshafts (108) is arranged between the upper ends of the two crankshafts (108), the synchronous transmission component (110) comprises synchronous belt wheels (111) coaxially and fixedly sleeved on the upper ends of the crankshafts (108), and direction-changing wheels (112) which are rotatably arranged on the upper end surfaces of the top plate (103) and are vertical in the axial direction, the direction-changing wheels (112) and the synchronous belt wheels (111) are positioned on the same plane, the direction-changing wheels (112) are provided with four synchronous belt (113) respectively positioned outside corners of the input ends of the lower charging barrel (105), a synchronous belt (113) used for connecting the two synchronous belt wheels is arranged between the two synchronous belt wheels (111), the synchronous belts (113) are respectively wound on the direction-changing wheels (112), one crankshaft (108) is connected with the output end of the power driving, the synchronous transmission component (110) drives the other crankshaft (108) to synchronously rotate.