CN107282875B - Sand injection hopper and sand injection equipment - Google Patents
Sand injection hopper and sand injection equipment Download PDFInfo
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- CN107282875B CN107282875B CN201710726495.XA CN201710726495A CN107282875B CN 107282875 B CN107282875 B CN 107282875B CN 201710726495 A CN201710726495 A CN 201710726495A CN 107282875 B CN107282875 B CN 107282875B
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- sand injection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/12—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose for filling flasks
Abstract
The application provides a sand injection hopper and sand injection equipment, wherein the sand injection hopper comprises: the hopper comprises a hopper body with a feeding channel, wherein a feeding hole communicated with the feeding channel is formed in the upper part of the hopper body, a first discharging hole and a second discharging hole communicated with the feeding channel are formed in the lower part of the hopper body, and the first discharging hole is higher than the second discharging hole; the first plate is covered on the second discharge hole, a plurality of first through holes are formed in the first plate, and the first through holes can be communicated with the feeding channel; the second plate is attached to the first plate and provided with a plurality of second through holes corresponding to the first through holes; and the driving mechanism is matched with the second plate, so that the second plate can reciprocate on the joint surface of the first plate. According to the technical scheme, rapid sand injection and uniform sand injection are realized, the sand injection speed is improved, and meanwhile, the controllability of the sand injection process is improved, so that the sand injection process is not easy to cover the guide column, the casting quality is further improved greatly, and the method is good in practicability and high in reliability.
Description
Technical Field
The application relates to the field of casting, in particular to a sand injection hopper and sand injection equipment.
Background
In the sand casting process, firstly, a lost foam is placed in a casting box, sand is added into the casting box, so that the lost foam is completely covered by the sand, a flow guide column of the lost foam is left on the surface of the sand, then molten iron is injected from the position of the flow guide column, the lost foam is melted, the space where the lost foam is located is occupied by the molten iron, and the mould is formed after cooling.
The existing sand injection mode comprises manual sand coating and machine sand coating, wherein the machine sand coating is generally to directly inject sand into a casting box, the speed is relatively high, but the injection is easy to be uneven, as the quantity and the volume of lost foam in the casting box are not fixed, the sand quantity is not well controlled, and too much quantity can bury a flow guiding column, so that the casting quality is influenced, meanwhile, dust in the existing machine sand coating process is very large, and the influence on air in a factory building is not good.
Disclosure of Invention
In order to solve at least one of the above problems, an object of the present application is to provide a sand injection hopper.
Another object of the present application is to provide a sand injection apparatus having the sand injection hopper described above.
To achieve the above object, an embodiment of the present application provides a sand injection hopper including: the hopper comprises a hopper body with a feeding channel, wherein a feeding hole communicated with the feeding channel is formed in the upper part of the hopper body, a first discharging hole and a second discharging hole communicated with the feeding channel are formed in the lower part of the hopper body, and the first discharging hole is higher than the second discharging hole; the first plate is covered on the second discharge hole, a plurality of first through holes are formed in the first plate, and the first through holes can be communicated with the feeding channel; the second plate is attached to the first plate and provided with a plurality of second through holes corresponding to the first through holes; and the driving mechanism is matched with the second plate, so that the second plate can reciprocate on the joint surface of the first plate.
According to the sand injection hopper provided by the application, the feeding hole communicated with the feeding channel is formed in the upper part of the hopper body, the first discharging hole and the second discharging hole communicated with the feeding channel are formed in the lower part of the hopper body, the first discharging hole is higher than the second discharging hole, the first plate with a plurality of first through holes is covered on the second discharging hole, the second plate is attached to the first plate, meanwhile, a plurality of second through holes corresponding to the first through holes are formed in the second plate, namely, when the second plate is attached to the first plate, the second through holes can be communicated with the first through holes, and as the first through holes can be communicated with the feeding channel, sand in the feeding channel can pass through the first through holes and the second through holes and be discharged to the outside of the feeding channel.
Specifically, when sand is injected into the casting box, firstly, sand is added into the feeding channel from the feeding port, the sand moves downwards under the action of gravity, the second discharging port can be closed by staggering the second through hole and the first through hole, the sand in the feeding channel is continuously accumulated and then is higher than the first discharging port so as to be directly discharged from the first discharging port, the sand is rapidly injected into the casting box, the efficiency is higher, when the sand in the casting box reaches a certain height, the sand is pressed and leveled, at the moment, the first discharging port can be closed, or the height of the sand in the feeding channel is lower than that of the first discharging port, and meanwhile, the driving mechanism is controlled to enable the second plate to reciprocate on the joint surface of the first plate, so that the first through hole and the second through hole are alternately communicated and staggered, the sand is uniformly injected into the casting box until the sand reaches the guide post of the lost foam, and the sand injection operation is completed. Through above-mentioned scheme, realize annotating sand fast and evenly annotate sand, when improving the sand speed, improved the controllability of annotating sand process, make it be difficult for covering the guide post, and then promote casting quality by a wide margin, the practicality is good, and the reliability is high.
In addition, the sand injection hopper in the embodiment provided by the application can also have the following additional technical characteristics:
in the above technical solution, preferably, the driving mechanism includes: the cylinder body assembly comprises a cylinder body and a piston rod which are matched, the cylinder body is fixedly connected with the hopper body, the piston rod is fixedly connected with the second plate, and when the piston rod moves relative to the cylinder body, the second plate moves on the joint surface.
In this scheme, through setting up the cylinder body subassembly to with cylinder body and hopper body fixed connection, piston rod and second board fixed connection, when driving the piston rod for the cylinder body motion, can drive the second board and remove on the laminating face, and further, through making the piston rod be reciprocating motion, can realize that the second board is reciprocating motion on the laminating face, make can realize the intercommunication in turn between second through-hole and the first through-hole and stagger, thereby reach the purpose of even shakeout.
The cylinder body assembly can be a cylinder assembly comprising a cylinder and a cylinder rod, the reaction speed is high, and the cylinder body assembly can also be a hydraulic cylinder assembly comprising a hydraulic cylinder and a hydraulic cylinder rod, and the stability and the reliability are high.
In any of the above embodiments, preferably, the driving mechanism includes: the driving motor is fixed on the hopper body, the output end of the driving motor is provided with a cam structure, the outer peripheral surface of the cam structure is contacted with the first end of the second plate, the second end of the second plate is connected with the hopper body through an elastic piece, the second end is the opposite end of the first end, and when the output shaft drives the cam structure to rotate, the second plate is made to reciprocate on the joint surface.
In this scheme, fix driving motor on the hopper body to make the second end of second board pass through the elastic component and link to each other with the hopper body, the first end of second board and the outer peripheral face contact of the epaxial cam structure of driving motor output, when driving motor drives cam structure and rotates, can realize that the second board is reciprocating motion on the faying face, thereby can realize the intercommunication in turn between messenger's second through-hole and the first through-hole and stagger, reach the purpose of even shakeout, improve the controllability of sand injection process, make it be difficult for covering the guide post, and then promote casting quality by a wide margin.
In any of the above embodiments, preferably, the bonding surface faces the inside of the feeding path.
In this scheme, the laminating face is towards the inside of pay-off passageway, and the second board is in the top of first board promptly to laminate mutually with first board, when the second board reciprocating motion on first board, the lateral wall of second through-hole can promote the sand, makes it follow first through-hole department evenly and falls, improves the controllability of notes sand process.
In any of the above technical solutions, preferably, a circle of coaming is provided at the edge of the second discharge port, and a dust discharge port is provided on the coaming and is correspondingly communicated with the dust suction pipe.
In this scheme, because the dust is great in the notes sand in-process, through setting up round bounding wall at the edge of second discharge gate to set up the dust discharge mouth on the bounding wall, make dust discharge mouth and dust absorption pipe correspond the intercommunication, can reduce the circumstances that the dust flies everywhere in disorder, promote the air quality in the factory building by a wide margin, reduce the harm to the human body.
In any of the above solutions, preferably, the method further includes: the choke piece is hinged in the dust collection pipe, and can cut off the dust collection pipe when the choke piece rotates to a preset angle; the knob is arranged outside the dust collection pipe and connected with the choke piece; the clamping part is arranged on the outer wall of the dust collection pipe and is provided with a plurality of clamping grooves which can be clamped with the knob and used for fixing the choke plate.
In this scheme, through set up the choke piece in the dust absorption pipe to link to each other with its knob with the outside, can make the choke piece rotate when rotating the knob, thereby can make the dust absorption pipe switch on, cut off, and control the conduction area of dust absorption pipe, prevent that the dust absorption pipe is too much from absorbing the sand, thereby be difficult to influence evenly annotating the sand to casting incasement, in addition, through set up the joint portion that has a plurality of draw-in grooves on the outer wall of dust absorption pipe, can at any time with the knob joint, realize fixed choke piece, improve notes sand stability and reliability, specifically, after rotating the knob to suitable position, can realize the joint of knob and draw-in groove through pressing or pulling the operation of knob.
In any of the above solutions, preferably, the method further includes: the extension pipe is correspondingly communicated with the first discharge hole; the switch valve is arranged in the extension pipe and used for controlling the conduction and the cutoff of the extension pipe and controlling the flow of the extension pipe.
In this scheme, through setting up the extension pipe that corresponds with first discharge gate to set up the ooff valve in the extension pipe, can control the switching on of extension pipe, cut off, and control the flow of extension pipe, thereby realize the regulation to the sand injection speed when annotating the sand fast, effectively improve notes sand efficiency.
In any of the above embodiments, preferably, the extension pipe is a hose; and/or the open end of the extension pipe is provided with a cloth sleeve which is cylindrical and is provided with openings at two ends.
In this scheme, through setting up the extension pipe and being the hose, improve the controllability, make it can annotate sand to appointed region, the simple operation is when annotating sand to the foundry goods incasement, does not need frequent removal notes sand hopper.
Through setting up the both ends and having open-ended tube-shape cloth cover, make the one end opening of tube-shape cloth cover link to each other with the open end of extension pipe, can adjust the export direction wantonly, the opening of the cloth cover other end can point to each direction when making out sand, and is difficult for the long-pending sand of remaining in the cloth cover, and the practicality is good, and the reliability is higher.
In any of the above technical solutions, preferably, the feeding channel includes a straight channel and an inverted cone channel that are sequentially communicated, a top end opening of the straight channel is a feeding port, a bottom end opening of the straight channel is communicated with a large end opening of the inverted cone channel, a small end opening of the inverted cone channel is a second discharging port, and the first discharging port is formed on a side wall of the inverted cone channel.
In this scheme, through setting up straight passageway and the back taper passageway that communicates in proper order to set up the top opening of straight passageway and be the feed inlet, the tip opening of back taper passageway is the second discharge gate, is difficult for appearing the dead angle in the messenger pay-off passageway, and the mobility of sand in the pay-off passageway is good, is difficult for blockking up, through setting up first discharge gate on the lateral wall of back taper passageway, because the lateral wall is the hypotenuse, when making sand flow from first discharge gate, is difficult for appearing blocking phenomenon in first discharge gate department, the reliability is higher.
In any of the above embodiments, preferably, the plurality of first through holes are in a rectangular array, and the cross-sectional shape of any one of the first through holes includes a circle, a square, and a diamond; the second through holes and the first through holes are arranged in one-to-one correspondence.
In this scheme, the cross sectional shape of first through-hole includes circular, square and rhombus, and a plurality of first through-holes are rectangular array, and a plurality of second through-holes set up with a plurality of first through-holes one-to-one for the sand can be even fall to appointed region, and the reliability is higher, can satisfy multiple sand injection demand.
It should be noted that, the arrangement mode of the first through holes is not limited to the rectangular array described above, but may be a circular array, or other irregular arrangement modes, and it is only necessary to satisfy uniform shakeout.
An embodiment of the second aspect of the present application provides a sand injection apparatus, including a sand injection hopper in any one of the above technical solutions.
The sand injection equipment provided by the application has all the beneficial effects due to the arrangement of the sand injection hopper in any one of the technical schemes, and is not repeated here.
Additional aspects and advantages of the application will be set forth in part in the description which follows, or may be learned by practice of the application.
Drawings
FIG. 1 shows a schematic structural view of a sand injection hopper according to one embodiment of the present application;
FIG. 2 shows a schematic structural view of a sand injection hopper according to another embodiment of the present application;
fig. 3 shows a schematic structural view of the sand injection hopper a of fig. 2.
The correspondence between the reference numerals and the component names in fig. 1 to 3 is:
102 hopper body, 104A first board, 104B second board, 106 actuating mechanism, 108 bounding wall, 110 dust absorption pipe, 112 knob, 114 joint portion, 116 extension pipe, 118 ooff valve, 120 cloth cover, 122 feed inlet.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and the scope of the application is therefore not limited to the specific embodiments disclosed below.
Sand injection hoppers provided according to some embodiments of the present application are described below with reference to fig. 1 to 3.
As shown in fig. 1 to 3, the sand injection hopper provided by the embodiment of the application includes: the hopper comprises a hopper body 102 with a feeding channel, wherein a feeding hole 122 communicated with the feeding channel is formed in the upper part of the hopper body 102, a first discharging hole and a second discharging hole communicated with the feeding channel are formed in the lower part of the hopper body 102, and the first discharging hole is higher than the second discharging hole; the first plate 104A is covered on the second discharge port, a plurality of first through holes are formed in the first plate 104A, and the first through holes can be communicated with the feeding channel; the second plate 104B is attached to the first plate 104A, and a plurality of second through holes corresponding to the first through holes are formed in the second plate 104B; the driving mechanism 106 is provided in cooperation with the second plate 104B, and allows the second plate 104B to reciprocate on the contact surface of the first plate 104A.
According to the sand injection hopper provided by the application, the upper part of the hopper body 102 is provided with the feed inlet 122 communicated with the feed channel, the lower part of the hopper body 102 is provided with the first discharge port and the second discharge port communicated with the feed channel, the first discharge port is higher than the second discharge port, the first plate 104A with a plurality of first through holes is covered on the second discharge port, the second plate 104B is attached to the first plate 104A, and meanwhile, the second plate 104B is provided with a plurality of second through holes corresponding to the first through holes, namely, when the second plate 104B is attached to the first plate 104A, the second through holes can be communicated with the first through holes, and sand in the feed channel can pass through the first through holes and the second through holes and be discharged to the outside of the feed channel.
Specifically, when sand is injected into the casting box, firstly, sand is added into the feeding channel from the feeding port 122, the sand moves downwards under the action of gravity, the second through hole and the first through hole are staggered, the second through hole can be closed, the sand in the feeding channel is continuously accumulated and then is higher than the first through hole, so that the sand is directly discharged from the first through hole, the sand is rapidly injected into the casting box, the efficiency is high, when the sand in the casting box reaches a certain height, the sand is pressed and leveled, at the moment, the first through hole can be closed, or the height of the sand in the feeding channel is lower than that of the first through hole, and meanwhile, the driving mechanism 106 is controlled to enable the second plate 104B to reciprocate on the joint surface of the first plate 104A, so that the first through hole and the second through hole are alternately communicated and staggered, and the sand is uniformly injected into the casting box until the sand reaches the position of a guide post of the lost foam, and the sand injection operation is completed. Through above-mentioned scheme, realize the quick sand injection of first step and the even sand injection of second step, when improving the sand injection speed, improved the controllability of sand injection process, make it be difficult for covering the guide post, and then promote casting quality by a wide margin, the practicality is good, and the reliability is high.
The first plate 104A and the second plate 104B are both in a flat plate structure and are attached to each other, the second plate 104B may be disposed above the first plate 104A or below the first plate 104A, when the second plate 104B is disposed above the first plate 104A, a chute is formed on the hopper body 102, and the second plate 104B can be inserted into the feeding channel through the chute and attached to the first plate 104A.
In one embodiment of the application, the drive mechanism 106 comprises: the cylinder assembly comprises a cylinder body and a piston rod which are matched, the cylinder body is fixedly connected with the hopper body 102, the piston rod is fixedly connected with the second plate 104B, and when the piston rod moves relative to the cylinder body, the second plate 104B moves on the joint surface.
In this scheme, through setting up the cylinder body subassembly to with cylinder body and hopper body 102 fixed connection, piston rod and second board 104B fixed connection, when the drive piston rod is for the cylinder body motion, can drive second board 104B and remove on the faying surface, further, through making the piston rod reciprocate, can realize second board 104B and reciprocate on the faying surface, make can realize the intercommunication in turn between second through-hole and the first through-hole and stagger, thereby reach the purpose of even shakeout.
The cylinder body assembly can be a cylinder assembly comprising a cylinder and a cylinder rod, the reaction speed is high, and the cylinder body assembly can also be a hydraulic cylinder assembly comprising a hydraulic cylinder and a hydraulic cylinder rod, and the stability and the reliability are high.
In one embodiment of the application, the drive mechanism 106 comprises: the driving motor is fixed on the hopper body 102, the output end of the driving motor is provided with a cam structure, the outer peripheral surface of the cam structure is contacted with the first end of the second plate 104B, the second end of the second plate 104B is connected with the hopper body 102 through an elastic piece, wherein the second end is the opposite end of the first end, and when the output shaft drives the cam structure to rotate, the second plate 104B is made to reciprocate on the joint surface.
In this scheme, fix driving motor on hopper body 102 to make the second end of second board 104B link to each other with hopper body 102 through the elastic component, the first end of second board 104B and the outer peripheral face contact of the epaxial cam structure of driving motor output, when driving motor drive cam structure rotates, can realize that second board 104B reciprocating motion on the faying surface, thereby can realize the intercommunication in turn between messenger's second through-hole and the first through-hole and stagger, reach the purpose of even shakeout, improve the controllability of sand injection process, make it be difficult for covering the guide post, and then promote casting quality by a wide margin.
In some embodiments of the application, the abutment surface faces the interior of the feed channel as shown in fig. 1.
In this scheme, the laminating face is towards the inside of pay-off passageway, and second board 104B is in first board 104A's top promptly to laminate mutually with first board 104A, when second board 104B reciprocating motion on first board 104A, the lateral wall of second through-hole can promote the sand, makes it follow first through-hole department evenly and falls, improves the controllability of notes sand process.
In some embodiments of the present application, as shown in fig. 1 and 2, a circle of coaming 108 is provided at the edge of the second discharge hole, and a dust discharge hole is provided on the coaming 108, and the dust discharge hole is correspondingly communicated with the dust suction pipe 110.
In this scheme, because the dust is great in the notes sand in-process, through setting up round bounding wall 108 at the edge of second discharge gate to set up the dust discharge mouth on bounding wall 108, make dust discharge mouth and dust absorption pipe 110 correspond the intercommunication, can reduce the circumstances that the dust flies everywhere in disorder, promote the air quality in the factory building by a wide margin, reduce harm to the human body.
In some embodiments of the present application, as shown in fig. 2 and 3, further comprising: the choke piece is hinged in the dust collection pipe 110, and can cut off the dust collection pipe 110 when the choke piece rotates to a preset angle; a knob 112 which is arranged outside the dust collection pipe 110 and is connected with the choke piece; the clamping part 114 is arranged on the outer wall of the dust collection pipe 110, and the clamping part 114 is provided with a plurality of clamping grooves which can be clamped with the knob 112 and used for fixing the choke piece.
In this scheme, through set up the choke piece in dust absorption pipe 110 to link to each other with its knob 112 of outside, can make the choke piece rotate when rotating knob 112, thereby can make dust absorption pipe 110 switch on, cut off, and control the conduction area of dust absorption pipe 110, prevent that dust absorption pipe 110 is too much from absorbing the sand, thereby be difficult to influence and evenly annotate the sand to casting incasement, in addition, through set up the joint portion 114 that has a plurality of draw-in grooves on the outer wall of dust absorption pipe 110, can with knob 112 joint at any time, realize fixed choke piece, improve notes sand stability and reliability, specifically, after rotating knob 112 to suitable position, can realize the joint of knob 112 and draw-in groove through pressing or pulling knob 112's operation.
In some embodiments of the present application, as shown in fig. 1 and 2, the sand injection hopper further includes: the extension pipe 116 is correspondingly communicated with the first discharging hole; an on-off valve 118 is disposed in the extension pipe 116 for controlling the on-off of the extension pipe 116 and controlling the flow rate of the extension pipe 116.
In this scheme, through setting up extension pipe 116 that corresponds with first discharge gate to set up ooff valve 118 in extension pipe 116, can control the switching on of extension pipe 116, cut off, and the flow of control extension pipe 116, thereby realize the regulation to the sand injection speed when annotating the sand fast, effectively improve notes sand efficiency.
In some embodiments of the application, extension tube 116 is a hose; and/or the open end of the extension pipe 116 is provided with a cloth cover 120, the cloth cover 120 is cylindrical, and both ends are provided with openings.
In this scheme, through setting up extension pipe 116 as the hose, improve the controllability, make it can annotate sand to appointed region, the simple operation is when annotating sand to the foundry goods incasement, does not need frequent removal notes sand hopper.
Through setting up both ends and having open-ended tubular cloth cover 120, make the one end opening of tubular cloth cover 120 link to each other with the open end of extension pipe 116, can adjust the exit direction wantonly, the opening of the other end of cloth cover 120 can point to each direction when making out sand, and is difficult for retaining sand in the cloth cover 120, and the practicality is good, and the reliability is higher.
In some embodiments of the present application, as shown in fig. 1 and 2, the feeding channel includes a straight channel and an inverted cone channel that are sequentially communicated, a top end opening of the straight channel is a feeding port 122, a bottom end opening of the straight channel is communicated with a large end opening of the inverted cone channel, a small end opening of the inverted cone channel is a second discharging port, and the first discharging port is formed on a side wall of the inverted cone channel.
In this scheme, through setting up straight passageway and the back taper passageway that communicates in proper order to set up the top opening of straight passageway and be feed inlet 122, the tip opening of back taper passageway is the second discharge gate, is difficult for appearing the dead angle in the messenger pay-off passageway, and the mobility of sand in the pay-off passageway is good, is difficult for blockking up, through setting up first discharge gate on the lateral wall of back taper passageway, because the lateral wall is the hypotenuse, when making sand flow from first discharge gate, is difficult for appearing blocking phenomenon in first discharge gate department, and the reliability is higher.
In some embodiments of the application, the plurality of first through holes are in a rectangular array, and the cross-sectional shape of any one of the first through holes includes circular, square, and diamond; the second through holes and the first through holes are arranged in one-to-one correspondence.
In this scheme, the cross sectional shape of first through-hole includes circular, square and rhombus, and a plurality of first through-holes are rectangular array, and a plurality of second through-holes set up with a plurality of first through-holes one-to-one for the sand can be even fall to appointed region, and the reliability is higher, can satisfy multiple sand injection demand.
It should be noted that, the arrangement mode of the first through holes is not limited to the rectangular array described above, but may be a circular array, or other irregular arrangement modes, and it is only necessary to satisfy uniform shakeout.
In one embodiment of the present application, as shown in fig. 1 to 3, the sand filling device comprises a sand filling funnel (i.e. a hopper body 102), a porous first orifice plate (i.e. a first plate 104A) and a porous second orifice plate (i.e. a second plate 104B) are arranged on the sand filling funnel, the first orifice plate and the second orifice plate are transversely blocked at the bottom of the sand filling funnel, the first orifice plate is relatively fixed with the sand filling funnel, the second orifice plate penetrates through the side wall of the sand filling funnel, a driving mechanism 106 is arranged to enable the second orifice plate to reciprocate relative to the first orifice plate, the orifice parts of the first orifice plate and the second orifice plate are alternately overlapped, a downward extension pipe 116 is arranged on the inclined edge of the sand filling funnel, an opening and closing valve (i.e. a switching valve 118) is arranged on the extension pipe, the extension pipe is communicated to the inside of the sand filling funnel, a flexible cloth cover 120 is arranged at the lower end part of the extension pipe, a circle of a surrounding plate 108 is arranged at the edge of the bottom of the sand filling funnel, the side edge of the surrounding plate is connected with a dust suction pipe 110, and a flow control valve (i.e. a choke piece) is arranged on the dust suction pipe.
Further, the second orifice plate is arranged above the first orifice plate, and the second orifice plate faces sand in the sand injection funnel.
Further, the driving mechanism comprises an air cylinder, the cylinder body of the air cylinder is fixed on the sand injection funnel, and a piston rod of the air cylinder is connected with the second orifice plate and drives the second orifice plate to reciprocate.
Further, the on-off valve (namely the on-off valve) is a baffle plate, the baffle plate is hinged on the extension pipe, and the baffle plate can be transversely inserted into the extension pipe to block the section of the extension pipe.
Further, the flow control valve is a choke plate, the choke plate is hinged in the dust collection pipe, a rotary wrench (i.e. a knob 112) is arranged outside the dust collection pipe, the rotary wrench is connected to the rotating shaft of the choke plate, and a clamping part (i.e. a clamping part 114) of the rotary wrench is further arranged on the dust collection pipe.
In conclusion, the device can realize rough sand injection of the first step and uniform sand injection of the second step, the first step can improve the speed of sand injection through the extension pipe, when the sand injection reaches half, the sand injection is replaced by the first orifice plate and the second orifice plate, so that the sand is uniformly shakeout, and fine sand can be uniformly lifted to the preset position of the casting box.
In one embodiment of the present application, as shown in fig. 1-3, a sand injection hopper (i.e., hopper body 102) is included, which is configured to discharge sand in two steps.
First, be equipped with decurrent extension pipe 116 on the hypotenuse of sand injection funnel, the extension pipe communicates to the sand injection funnel inside, is equipped with on-off valve (i.e. switch valve 118) on the extension pipe, and the extension pipe lower extreme is equipped with flexible cloth cover 120, and the extension pipe setting can guarantee not to block up when sand injection funnel diagonal edge, and the direction can be adjusted wantonly to cloth cover 120 simultaneously, and the export can be to each direction when going out sand.
The on-off valve comprises a baffle plate hinged on the extension pipe 116 and capable of being transversely inserted into the extension pipe to seal the section of the extension pipe 116.
In the second step, a porous first orifice plate (i.e. a first plate 104A) and a porous second orifice plate (i.e. a second plate 104B) are arranged at the bottom of the sand injection funnel (i.e. the hopper body 102), the first orifice plate is relatively fixed with the sand injection funnel, the second orifice plate penetrates through the side wall of the sand injection funnel 1, and a driving mechanism 106 is arranged to enable the second orifice plate to reciprocate relative to the first orifice plate. The driving mechanism comprises an air cylinder, the cylinder body of the air cylinder is fixed on the sand injection funnel, and a piston rod of the air cylinder is connected with the second orifice plate and drives the second orifice plate to reciprocate.
The hole parts of the first hole plate and the second hole plate are overlapped in a staggered way, the second hole plate is positioned above the first hole plate, the second hole plate faces sand in the sand injection funnel, and the sand is stirred to uniformly fall from the hole when the second hole plate moves.
The edge of sand injection funnel bottom is equipped with round bounding wall, and the bounding wall side is connected with the dust absorption pipe, has flow control valve on the dust absorption pipe 10, and flow control valve is the choke piece, and the choke piece articulates in dust absorption pipe 110, can be with the complete shutoff of dust absorption pipe 110 when the choke piece changes to certain angle, and dust absorption pipe 110 is equipped with rotatory spanner (i.e. knob 112) outward, and rotatory spanner connects in the choke piece pivot, still is equipped with rotatory spanner's screens portion (i.e. joint portion 114) on the dust absorption pipe.
During operation, the extension pipe 116 is used for rapid sand injection, fine sand (namely sand) is pressed to be flat when the fine sand reaches a certain height, and then sand is evenly removed under the action of the first orifice plate and the second orifice plate until the fine sand reaches the flush position of the guide post of the lost foam.
In addition, the dust suction pipe can be opened in the sand injection process, and when the sand injection speed is too low, the suction force of the dust suction pipe needs to be regulated, so that the dust suction pipe is prevented from absorbing excessive fine sand.
The sand injection device (not shown in the figure) provided by the embodiment comprises the sand injection hopper in any technical scheme.
The sand injection equipment provided by the application has all the beneficial effects due to the arrangement of the sand injection hopper in any one of the technical schemes, and is not repeated here.
In summary, according to the sand injection hopper and the sand injection device provided by the application, the first discharge port and the second discharge port which are communicated with the feeding channel are arranged at the lower part of the hopper body, the first discharge port is higher than the second discharge port, the first plate and the second plate which are mutually attached are covered at the second discharge port, meanwhile, the second plate can reciprocate on the attaching surface of the first plate by adding the driving mechanism which is matched with the second plate, and the attaching surface, namely the plane on which the first plate and the second plate are attached, can be alternately communicated and staggered, so that circulation is realized, thereby achieving the aim of uniform sand injection, realizing rapid sand injection and uniform sand injection, improving the controllability of the sand injection process while improving the sand injection speed, ensuring that the sand injection process is not easy to cover the guide post, further greatly improving the casting quality, and having good practicability and high reliability.
In the present application, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present application.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. A sand injection hopper, comprising:
the hopper comprises a hopper body with a feeding channel, wherein a feeding hole communicated with the feeding channel is formed in the upper part of the hopper body, a first discharging hole and a second discharging hole communicated with the feeding channel are formed in the lower part of the hopper body, and the first discharging hole is higher than the second discharging hole;
the first plate is covered on the second discharge hole, a plurality of first through holes are formed in the first plate, and the first through holes can be communicated with the feeding channel;
the second plate is attached to the first plate and provided with a plurality of second through holes corresponding to the first through holes;
the driving mechanism is matched with the second plate, so that the second plate can reciprocate on the joint surface of the first plate;
the edge of the second discharging hole is provided with a circle of coaming, the coaming is provided with a dust discharging hole, and the dust discharging hole is correspondingly communicated with the dust suction pipe;
the sand injection hopper further comprises:
the choke piece is hinged in the dust collection pipe, and can cut off the dust collection pipe when the choke piece rotates to a preset angle;
the knob is arranged outside the dust collection pipe and connected with the choke piece;
the clamping part is arranged on the outer wall of the dust collection pipe and is provided with a plurality of clamping grooves which can be clamped with the knob and used for fixing the choke piece.
2. A sand injection hopper as claimed in claim 1 wherein the drive mechanism comprises:
the cylinder body assembly comprises a cylinder body and a piston rod which are matched, the cylinder body is fixedly connected with the hopper body, the piston rod is fixedly connected with the second plate, and when the piston rod moves relative to the cylinder body, the second plate moves on the joint surface.
3. A sand injection hopper as claimed in claim 1 wherein the drive mechanism comprises:
the driving motor is fixed on the hopper body, the output end of the driving motor is provided with a cam structure, the peripheral surface of the cam structure is contacted with the first end of the second plate, the second end of the second plate is connected with the hopper body through an elastic piece,
the second end is the opposite end of the first end, and when the output shaft drives the cam structure to rotate, the second plate moves back and forth on the joint surface.
4. A sand injection hopper according to any of claims 1 to 3 wherein the abutment surface faces the interior of the feed channel.
5. A sand injection hopper as claimed in any one of claims 1 to 3 further comprising:
the extension pipe is correspondingly communicated with the first discharge hole;
the switch valve is arranged in the extension pipe and used for controlling the conduction and the cutoff of the extension pipe and controlling the flow of the extension pipe.
6. A sand filling hopper as claimed in claim 5, wherein,
the extension pipe is a hose; and/or
The open end of extension pipe is equipped with the cloth cover, the cloth cover is the tube-shape, and both ends have the opening.
7. A sand filling hopper as claimed in any one of claims 1 to 3,
the feeding channel comprises a straight channel and an inverted cone channel which are communicated in sequence,
the top end opening of the straight channel is the feed inlet, the bottom end opening of the straight channel is communicated with the large end opening of the inverted cone channel, the small end opening of the inverted cone channel is the second discharge outlet, and the first discharge outlet is arranged on the side wall of the inverted cone channel.
8. A sand filling hopper as claimed in any one of claims 1 to 3,
the plurality of first through holes are in a rectangular array, and the cross section shape of any one of the first through holes comprises a circle, a square and a diamond;
the second through holes and the first through holes are arranged in one-to-one correspondence.
9. A sand injection apparatus, comprising:
a sand injection hopper as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726495.XA CN107282875B (en) | 2017-08-22 | 2017-08-22 | Sand injection hopper and sand injection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710726495.XA CN107282875B (en) | 2017-08-22 | 2017-08-22 | Sand injection hopper and sand injection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107282875A CN107282875A (en) | 2017-10-24 |
| CN107282875B true CN107282875B (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710726495.XA Active CN107282875B (en) | 2017-08-22 | 2017-08-22 | Sand injection hopper and sand injection equipment |
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| CN (1) | CN107282875B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654202A (en) * | 2017-10-25 | 2018-02-02 | 安达市天屹桩基有限责任公司 | Mud circulating vehicle |
| CN111842803B (en) * | 2020-08-27 | 2021-11-16 | 安徽铸机机械智能有限公司 | Precoated sand aluminum mold molding machine |
| CN111992662B (en) * | 2020-08-27 | 2021-11-16 | 安徽铸机机械智能有限公司 | Shakeout device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107282875A (en) | 2017-10-24 |
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