CN215237655U

CN215237655U - Lower frame sand shooting device capable of shooting sand up and down

Info

Publication number: CN215237655U
Application number: CN202121555618.6U
Authority: CN
Inventors: 许家典; 许文前; 王立青
Original assignee: Quanzhou Juzhu Intelligent Technology Co ltd
Current assignee: Quanzhou Juzhu Intelligent Technology Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-12-21
Anticipated expiration: 2031-07-09

Abstract

The utility model relates to a sand casting field discloses a lower frame of penetrating sand from top to bottom penetrates sand device, including storing up the sand bucket, penetrating sand passageway and sandblast seat, the top of storing up the sand bucket is equipped with into sand mouth, the bottom of storing up the sand bucket is equipped with out the sand mouth, the sandblast seat is equipped with the sandblast mouth that is located the top and is located the connector of side, the top of penetrating the sand passageway is connected with out the sand mouth, the bottom of penetrating the sand passageway is fixed with penetrates sand seal assembly, the connector is through penetrating sand seal assembly and penetrating sand access connection, the side of storing up the sand bucket is connected with penetrates the sand admission valve, the utility model discloses the gas tightness of effectual assurance sand process has guaranteed to penetrate going on smoothly of sand.

Description

Lower frame sand shooting device capable of shooting sand up and down

Technical Field

The utility model relates to a sand casting field, especially a lower frame that penetrates sand from top to bottom penetrates sand device.

Background

Steel, iron and most nonferrous metal castings can be obtained by sand casting. The molding material used for sand casting is cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and the casting mould can adapt to single-piece production, batch production and mass production of castings, and is a basic process in casting production for a long time. The sand-jetting valve is used for filling high-pressure gas into the sand storage barrel, molding sand in the sand storage barrel is atomized, the atomized sand-containing gas of the molding sand enters a molding chamber of the molding machine from a sand-jetting plate on the sand-jetting seat after passing through the sand-jetting passage and the sand-jetting seat, and the vibration of the sand-jetting seat easily influences the air tightness of the connection between the sand-jetting seat and the sand-jetting passage and the stability of the molding chamber during mold closing. In addition, the air in the sand storage cylinder of the existing molding machine is not uniform, the sand cannot be well atomized, the sand blasting effect is influenced, the service life is short, and the use requirement of the full-automatic sand casting molding machine with up-and-down sand shooting cannot be well met.

SUMMERY OF THE UTILITY MODEL

Therefore, the lower frame sand shooting device capable of shooting sand up and down needs to be provided, and the problems that the existing sand shooting device is poor in air tightness and uneven in molding sand atomization are solved.

In order to realize the above-mentioned purpose, the utility model provides a lower frame that penetrates sand from top to bottom penetrates sand device, including storing up the sand bucket, penetrating sand passageway and sandblast seat, the top of storing up the sand bucket is equipped with into sand mouth, the bottom of storing up the sand bucket is equipped with out the sand mouth, the sandblast seat is equipped with the sandblast mouth that is located the top and is located the connector of side, the top of penetrating the sand passageway is connected with out the sand mouth, the bottom of penetrating the sand passageway is fixed with penetrates sand seal assembly, the connector through penetrating sand seal assembly with penetrate sand access connection, the side of storing up the sand bucket is connected with penetrates the sand admission valve.

Further, penetrate sand seal assembly and include sliding pressing plate, sealing strip and push cylinder, sliding pressing plate's center department is equipped with the mounting hole, sliding pressing plate passes through the mounting hole movable sleeve and establishes on penetrating the sand passageway, the sealing strip is fixed on sliding pressing plate is close to the side of sandblast seat, the sealing strip encircles the mounting hole setting, the sealing strip laminates with the outside wall of penetrating the sand passageway, push cylinder is fixed mutually with penetrating the sand passageway, push cylinder's output shaft is fixed mutually with the side that the sandblast seat was kept away from to sliding pressing plate, be fixed with connection baffle on the connector of sandblast seat, connection baffle sets up with sliding pressing plate relatively.

The sealing strip can seal the sand blasting seat and penetrate the junction of sand passageway, and the sand blasting seat with penetrate the sand passageway back of laminating mutually, the setting up of push cylinder can promote the sliding pressing board and press to the sand blasting seat, sand blasting seat and the cooperation with the sliding pressing board, compaction sealing strip to reach sealed purpose.

Furthermore, a sand blasting air adding valve is fixed on the sand blasting seat, and a sand blasting plate is fixed on a sand blasting port of the sand blasting seat. The sand blasting gas adding valve is used for supplementing high-pressure gas into sand-containing gas flow, and ensures that the sand-containing gas pressure is kept at a higher level, thereby ensuring the smooth sand blasting.

Further, store up the sand bucket internal fixation and have the inner tube, the lateral surface of inner tube and the medial surface of storing up the sand bucket have the interval between, form the air inlet chamber, penetrate sand admission valve and communicate with each other with the air inlet chamber, be equipped with a plurality of ventilation holes on the lateral wall of inner tube. When shooting sand admission valve intake air, earlier distribute to the chamber of admitting air, later in the rethread ventilation hole can the multiple spot enter into the inner tube for the molding sand of inner tube can evenly atomize, guarantees atomization effect, thereby guarantees the sandblast effect.

Further, be fixed with annular separation plate on the lateral wall of inner tube, annular separation plate will admit air the chamber and separate into a chamber and a main part chamber, penetrate sand admission valve and communicate with each other with a chamber, main part chamber circumference is fixed with the separation rib of a plurality of spiral settings, it is fixed mutually with the lateral wall of inner tube to separate the rib, separate the rib and separate into a plurality of spiral wind channels with the main part chamber, the ventilation hole is corresponding with spiral wind channel position, be equipped with the wind channel import corresponding with spiral wind channel on the annular separation plate. Gas is the spiral flow in spiral wind channel, and when gas entered into the inner tube via the ventilation hole, still kept certain spiral flow trend downwards, after gas got into the inner tube, can effectually enter into after the molding sand atomizing and penetrate the sand passageway in, spiral gas also can play certain stirring effect after entering into the inner tube simultaneously.

Further, the aperture of the vent hole is gradually reduced from outside to inside. When the air current passes through the ventilation hole, because the setting in ventilation hole aperture for the air current has great atmospheric pressure at the inlayer in ventilation hole, makes the velocity of flow increase of air current, avoids the molding sand to flow out to the intake chamber from the ventilation hole.

Furthermore, the sand-feeding device also comprises a feed hopper, wherein the feed hopper is fixed on the sand inlet, and a sealing push-pull plate is arranged on the sand inlet in a sliding manner.

When the sand shooting air inlet valve is used for air inlet, the sealing push-pull plate is used for sealing the sand inlet, so that the air pressure in the sand storage barrel is ensured, and the molding sand in the sand storage barrel is completely atomized.

The sand storage barrel is fixedly connected with a sand level sensor, the sealing push-pull plate is fixedly connected with a push-pull cylinder, and the sand level sensor and the push-pull cylinder are both electrically connected with the feeding controller.

The sand level sensor, the push-pull air cylinder and the feeding controller form an automatic control system, when the sand level sensor detects that the material level in the sand storage barrel falls to a certain threshold value, the push-pull air cylinder is started through the feeding controller, the push-pull air cylinder drives the sealing push-pull plate to be drawn out, and the feeding hopper adds molding sand into the sand storage barrel.

Furthermore, the sand shooting channel is L-shaped, and a channel air supplement valve is arranged at the corner of the L-shaped sand shooting channel.

The channel air compensating valve is used for compensating air pressure for the sand shooting channel, so that the air pressure of sand-containing air flow in the sand shooting channel is kept, and the molding sand is kept in an atomized state.

The technical scheme has the following beneficial effects:

the utility model discloses in, penetrate sand seal assembly's setting can effectually prevent gas leakage, guarantee the sandblast seat and penetrate the gas tightness of sand passageway intercommunication, be favorable to going on smoothly of sandblast, simultaneously, the setting of inner tube can make in the even inner tube that enters into of high-pressure gas in the sand storage barrel to make the moulding sand of inner tube can even atomizing, guarantee good sand effect of penetrating.

Drawings

Fig. 1 is a structural view of a lower frame shooting apparatus according to an embodiment.

FIG. 2 is a block diagram of a sand shooting seal assembly according to an embodiment.

Fig. 3 is a front view of the slide platen according to the embodiment.

Fig. 4 is a structural view of the inside of the sand storage barrel according to the embodiment.

FIG. 5 is a block diagram of the annular divider plate according to an embodiment.

FIG. 6 is a block diagram of the inner barrel according to an embodiment.

Description of reference numerals:

1. a sand storage barrel; 11. a sand shooting air inlet valve; 12. a sand level sensor; 13. an inner barrel; 14. a vent hole; 15. An annular partition plate; 151. an air duct inlet; 16. a top chamber; 17. separating ribs; 18. a spiral duct; 2. A sand shooting channel; 21. a channel air compensating valve; 3. a sand blasting seat; 31. connecting a baffle plate; 32. a sand blasting and gas adding valve is arranged; 33. a sand blasting plate; 4. a sand shooting seal assembly; 41. a sliding platen; 42. a push cylinder; 43. a sealing strip; 5. a feed hopper; 51. sealing the push-pull plate; 52. a push-pull cylinder; 6. a feed controller.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1-6, the present embodiment provides a lower frame sand shooting device for shooting sand up and down, which includes a sand storage barrel 1, a sand shooting channel 2, a sand blasting seat 3 and a feeding hopper 5, wherein the top of the sand storage barrel 1 is provided with a sand inlet, the bottom of the sand storage barrel 1 is provided with a sand outlet, the sand blasting seat 3 is provided with a sand blasting port at the top and a connecting port at the side, the top of the sand shooting channel 2 is connected with the sand outlet, the feeding hopper 5 is fixed on the sand inlet, and a sealing push-pull plate 51 is slidably arranged on the sand inlet. When the sand shooting air inlet valve 11 is used for air inlet, the sealing push-pull plate 51 is used for sealing the sand inlet, so that the air pressure in the sand storage barrel 1 is ensured, and further, the molding sand in the sand storage barrel 1 is completely atomized.

An inner cylinder 13 is fixed in the sand storage barrel 1, a space is arranged between the outer side surface of the inner cylinder 13 and the inner side surface of the sand storage barrel 1 to form an air inlet cavity, the sand shooting air inlet valve 11 is communicated with the air inlet cavity, and a plurality of air vents 14 are arranged on the side wall of the inner cylinder 13. When sand shooting admission valve 11 admits air, distribute earlier to the chamber of admitting air, later the rethread ventilation hole 14 can the multiple spot enter into inner tube 13 in for the molding sand of inner tube 13 can evenly atomize, guarantees the atomization effect, thereby guarantees the sandblast effect.

In this embodiment, an annular partition plate 15 is fixed on the outer side wall of the inner cylinder 13, the annular partition plate divides the air inlet cavity into a top cavity 16 and a main body cavity, the sand shooting air inlet valve 11 is communicated with the top cavity 16, a plurality of spirally arranged separation ribs 17 are fixed in the circumferential direction of the main body cavity, the separation ribs 17 are fixed to the side wall of the inner cylinder 13, the main body cavity is divided into a plurality of spiral air ducts 18 by the separation ribs 17, the vent holes 14 correspond to the spiral air ducts 18 in position, and an air duct inlet 151 corresponding to the spiral air ducts 18 is arranged on the annular partition plate 15. Gas is the spiral flow in spiral wind channel 18, and when gas entered into inner tube 13 via ventilation hole 14, still keep certain spiral flow trend downwards, gas gets into inner tube 13 after, can be effectual enter into sand shooting passageway 2 after the molding sand atomizing in, spiral gas also can play certain stirring effect after entering into inner tube 13 simultaneously.

Specifically, the aperture of the vent hole 14 is gradually reduced from the outside to the inside. When the air current passes through ventilation hole 14, because the setting in ventilation hole 14 aperture for the air current has great atmospheric pressure in the inlayer of ventilation hole 14, makes the velocity of flow increase of air current, avoids the molding sand to flow out to the intake chamber from ventilation hole 14.

The sand storage device is characterized by further comprising a feeding controller 6, a sand level sensor 12 is fixed on the sand storage barrel 1, a push-pull air cylinder 52 is fixedly connected with a sealing push-pull plate 51, and the sand level sensor 12 and the push-pull air cylinder 52 are both electrically connected with the feeding controller 6. The sand level sensor 12, the push-pull air cylinder 52 and the feeding controller 6 form an automatic control system, when the sand level sensor 12 detects that the material level in the sand storage barrel 1 drops to a certain threshold value, the push-pull air cylinder 52 is started through the feeding controller 6, the push-pull air cylinder 52 drives the sealing push-pull plate 51 to be drawn out, and the feeding hopper 5 adds molding sand into the sand storage barrel 1. The feeding controller 6 is fixed on the outer side wall of the sand storage barrel 1

The sand shooting channel 2 is L-shaped, and a channel air compensating valve 21 is arranged at the corner of the L-shaped sand shooting channel 2. The channel aeration valve 21 is used to aerate the sand shooting channel 2, so as to maintain the air pressure of the sand-containing air flow in the sand shooting channel 2, and further keep the molding sand in an atomized state.

The bottom of the sand shooting channel 2 is fixed with a sand shooting sealing component 4, a connector is connected with the sand shooting channel 2 through the sand shooting sealing component 4, and the side surface of the sand storage barrel 1 is connected with a sand shooting air inlet valve 11.

In this embodiment, penetrate sand seal assembly 4 and include sliding pressing plate 41, sealing strip 43 and push cylinder 42, sliding pressing plate 41's center department is equipped with the mounting hole, sliding pressing plate 41 establishes on penetrating sand passageway 2 through the mounting hole activity cover, sealing strip 43 is fixed on sliding pressing plate 41 is close to the side of sandblasting seat 3, sealing strip 43 encircles the mounting hole setting, sealing strip 43 and the laminating of the outside wall of penetrating sand passageway 2, push cylinder 42 is fixed mutually with penetrating sand passageway 2, push cylinder 42's output shaft and sliding pressing plate 41 are kept away from the side of sandblasting seat 3 and are fixed mutually, be fixed with connection baffle 31 on the connector of sandblasting seat 3, connection baffle 31 sets up with sliding pressing plate 41 relatively.

Sealing strip 43 can seal the sand blasting seat 3 and penetrate the junction of sand passageway 2, and sand blasting seat 3 with penetrate the sand passageway 2 back of laminating mutually, the setting that promotes cylinder 42 can promote sliding pressing plate 41 and press to sand blasting seat 3, sand blasting seat 3 and with sliding pressing plate 41's cooperation, compaction sealing strip 43 to reach sealed purpose. A sand blasting air adding valve 32 is fixed on the sand blasting seat 3, and a sand blasting plate 33 is fixed on a sand blasting opening of the sand blasting seat 3. The sand blasting gas adding valve is used for supplementing high-pressure gas into sand-containing gas flow, and ensures that the sand-containing gas pressure is kept at a higher level, thereby ensuring the smooth sand blasting.

When the embodiment is used:

when molding machine compound die, connection baffle 31 on the sandblast seat 3 moves to the position relative with sliding pressure plate 41, at this moment, connection baffle 31 laminates with the port of penetrating sand passageway 2 mutually, promote cylinder 42 and promote sliding pressure plate 41 and move towards connection baffle 31, sliding pressure plate 41 compaction sealing washer, make sandblast seat 3 with penetrate sand passageway 2 zonulae occludens, penetrate sand admission valve 11 and let in high-pressure gas, after distributing to the main part intracavity through spiral duct 18 through gaseous, get into in inner tube 13, the molding sand of inner tube 13 is atomized, and contain sand gas then through penetrating sand passageway 2, sandblast seat 3, jet out from sandblast board 33 on sandblast seat 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all the modifications of the equivalent structure or equivalent flow path using the contents of the specification and the drawings of the present invention, or directly or indirectly using other related technical fields are also included in the scope of the present invention.

Claims

1. The utility model provides a lower frame of shooting sand from top to bottom shoots sand device, its characterized in that, includes and stores up the sand bucket, shoots sand passageway and sandblast seat, the top of storing up the sand bucket is equipped with into sand mouth, the bottom of storing up the sand bucket is equipped with out the sand mouth, the sandblast seat is equipped with the sandblast mouth that is located the top and is located the connector of side, the top of shooting the sand passageway is connected with out the sand mouth, the bottom of shooting the sand passageway is fixed with and shoots sand seal assembly, the connector through shooting sand seal assembly with shoot sand access connection, the side of storing up the sand bucket is connected with and shoots the sand admission valve.

2. The lower frame sand shooting device for up-and-down sand shooting as claimed in claim 1, wherein the sand shooting sealing assembly comprises a sliding pressing plate, a sealing strip and a pushing cylinder, a mounting hole is formed in the center of the sliding pressing plate, the sliding pressing plate is movably sleeved on the sand shooting channel through the mounting hole, the sealing strip is fixed on the side face, close to the sand blasting seat, of the sliding pressing plate, the sealing strip is arranged around the mounting hole, the sealing strip is attached to the outer side wall of the sand shooting channel, the pushing cylinder is fixed with the sand shooting channel, the output shaft of the pushing cylinder is fixed to the side face, far away from the sand blasting seat, of the sliding pressing plate, a connecting baffle is fixed on a connecting port of the sand blasting seat, and the connecting baffle is arranged opposite to the sliding pressing plate.

3. The lower frame sanding device for up and down sanding of claim 1, wherein the sanding seat has a sanding filler valve fixed thereon, and the sanding opening of the sanding seat has a sanding plate fixed thereon.

4. The lower frame sand ejecting device for vertically ejecting sand as claimed in claim 1, wherein an inner cylinder is fixed in the sand storage barrel, an interval is provided between the outer side surface of the inner cylinder and the inner side surface of the sand storage barrel to form an air inlet cavity, the sand ejecting air inlet valve is communicated with the air inlet cavity, and a plurality of air vents are provided on the side wall of the inner cylinder.

5. The lower frame sand ejecting device for vertically ejecting sand according to claim 4, wherein an annular partition plate is fixed on the outer side wall of the inner cylinder, the annular partition plate divides the air inlet cavity into a top cavity and a main body cavity, the sand ejecting air inlet valve is communicated with the top cavity, a plurality of spirally arranged separation ribs are circumferentially fixed on the main body cavity, the separation ribs are fixed with the side wall of the inner cylinder, the main body cavity is divided into a plurality of spiral air ducts by the separation ribs, the vent holes correspond to the spiral air ducts in position, and air duct inlets corresponding to the spiral air ducts are formed in the annular partition plate.

6. The lower frame sanding device for upper and lower sanding according to claim 5, wherein the vent holes have a diameter that decreases from the outside inward.

7. The lower frame sand shooting device for up-and-down sand shooting as claimed in claim 1, further comprising a feed hopper, wherein the feed hopper is fixed on the sand inlet, and a sealing push-pull plate is slidably arranged on the sand inlet.

8. The lower frame sand shooting device for up-and-down sand shooting as claimed in claim 7, further comprising a feeding controller, wherein the sand storage barrel is fixed with a sand level sensor, the sealing push-pull plate is fixedly connected with a push-pull cylinder, and the sand level sensor and the push-pull cylinder are both electrically connected with the feeding controller.

9. The lower frame sand shooting device for up-and-down sand shooting as claimed in claim 1, wherein the sand shooting channel is L-shaped, and a channel air compensation valve is provided at a corner of the L-shaped sand shooting channel.