CN113664182A

CN113664182A - Vacuum casting equipment

Info

Publication number: CN113664182A
Application number: CN202110957182.1A
Authority: CN
Inventors: 江明明; 彭远征; 薛英杰
Original assignee: Hunan Duno Intelligent Robots Technology Co ltd
Current assignee: Hunan Duno Intelligent Robots Technology Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2021-11-19
Anticipated expiration: 2041-08-19
Also published as: CN113664182B

Abstract

The invention belongs to the field of casting equipment, and particularly relates to vacuum casting equipment which comprises a vacuum heating bin, a cooling bin, two feeding devices and a mold conveying device which are sequentially arranged, the vacuum heating bin comprises a bin body, the opposite sides of the bin body are respectively provided with a material passing hole and a pushing hole which are communicated with the cooling bin, the die conveying device comprises a push rod and a push rod driving piece, the push rod driving piece drives the push rod to penetrate through the push hole to jack the die in the bin body to the cooling bin from the material passing hole, the vacuum heating bin and the cooling bin are arranged in an isolated mode through the sequential arrangement of the vacuum heating bin and the cooling bin, so that the mutual temperature cannot interfere with each other, the energy consumption loss is effectively reduced, and the casting efficiency can be improved.

Description

Vacuum casting equipment

Technical Field

The invention belongs to the field of casting equipment, and particularly relates to vacuum casting equipment.

Background

The current vacuum casting equipment has the following problems: 1, an open production environment generates waste gas in the production process, which hardly meets increasingly severe environmental requirements and has large energy loss; 2, a large amount of heat radiation forms a high-temperature working environment in the casting process, and the danger coefficient is high; 3, the silver ingots are heavy, manual operation is adopted, the labor intensity of workers is very high, and the production efficiency is low; 4, the graphite mold is exposed in an open environment for a long time, and is easily oxidized to form a large number of air holes, so that the surface of the cast silver ingot is not flat, polishing is needed in the later period, and the processing cost and the material loss are greatly increased.

Disclosure of Invention

The invention aims to provide vacuum casting equipment with high efficiency, low energy loss and a structure.

The invention comprises a vacuum heating bin and a cooling bin which are arranged in sequence, a feeding device used for respectively conveying a die filled with a raw material to be cast into the vacuum heating bin and conveying the die out of the cooling bin, and a die conveying device used for pushing the die to move from the vacuum heating bin to the cooling bin, wherein the vacuum heating bin comprises a bin body, the opposite sides of the bin body are respectively provided with a material passing hole and a pushing hole which are communicated with the cooling bin, the die conveying device comprises a pushing rod and a pushing rod driving piece, the pushing rod driving piece is arranged on the outer side of the bin body and connected with the pushing rod, the pushing rod driving piece drives the pushing rod to penetrate through the pushing hole to jack the die in the bin body from the material passing hole to the cooling bin, a sealing cover is arranged on one side of the material passing hole, a sealing assembly is arranged on the outer side of the pushing hole, the sealing assembly comprises a driving piece II arranged on one side of the pushing hole and a sealing plate arranged on the output end of the driving piece II, when the driving blocking plate is far away from the pushing hole, the driving piece II does not influence the pushing rod to penetrate through the pushing hole.

Furthermore, the catch bar driving piece comprises a fourth linear cylinder fixedly arranged on the bin body and a connecting plate arranged at the four end parts of the fourth linear cylinder, the catch bar is arranged on the connecting plate and arranged towards the catch hole, and the axis of the catch bar is coincided with the axis of the catch hole.

Furthermore, the driving part II is a rotary compressing cylinder, the plugging plate is arranged on the rotary compressing cylinder through a connecting rod, and the axis of the rotary compressing cylinder is parallel to the axis of the pushing hole.

Furthermore, all be provided with liftout device in vacuum heating storehouse and the cooling storehouse, storehouse body one side in vacuum heating storehouse and the cooling storehouse is provided with the door, material feeding unit sets up in door position, including fork board and drive fork board rectilinear movement's fork board driving piece, the fork board includes the plate body, sets up two fork strips that are close to door one side at the plate body, the liftout device includes the roof driving piece that roof and drive roof reciprocated, the length of roof is less than the distance between two fork strips.

Furthermore, a medium-frequency heating device is arranged in the vacuum heating bin, the medium-frequency heating device comprises four medium-frequency heating plates which are connected end to end, the inner sides of the medium-frequency heating plates are copper pipe coils, the outer sides of the medium-frequency heating plates are wrapped by refractory materials, the medium-frequency heating plates are arranged at the position below the bin door, and the material ejecting device is arranged at the position below the medium-frequency heating plates.

Furthermore, a cooling device is arranged in the cooling bin, the cooling device is a cooling box with a downward opening, the cooling box is arranged at the position above the bin door, and the material ejecting device is arranged at the position below the bin door.

Furthermore, a cooling medium circulation channel is arranged in the cooling box plate, and a liquid inlet and a liquid outlet which are communicated with the cooling medium circulation channel are also arranged on the outer side of the cooling box.

Furthermore, transition pieces are arranged between the material passing holes and the top plate in the vacuum heating bin and the cooling bin.

Furthermore, the vacuum heating bin and the cooling bin are both connected with a vacuumizing device.

Furthermore, the storehouse body is the enclosed construction, and wherein one side is provided with the opening, and the opening outside is provided with the door, and the door outside is provided with the door subassembly that opens and shuts, the door subassembly that opens and shuts drives the door shutoff or keeps away from the opening, still includes at least two sets of door that set up in the door and correspond the side and compress tightly the subassembly, the door compresses tightly the subassembly including setting up driving piece one and the compact heap of setting on a driving piece output on one side of the opening, and driving piece one does not influence the door subassembly shutoff that opens and shuts or keep away from the opening when the door is kept away from to the driving compact heap.

The invention has the advantages that the vacuum heating bin and the cooling bin are sequentially arranged, silver ingots are taken as an example for casting, silver powder is filled into a mold and covered by a mold cover plate, the silver powder is fed into the heating bin through the feeding device for heating casting, after casting is finished, the mold is directly pushed into a bin body of the cooling bin through the mold conveying device for rapid cooling so as to realize rapid butt joint of casting and cooling, the heating bin and the cooling bin are arranged in an isolated way, mutual temperature interference is avoided, energy consumption loss is effectively reduced, and casting efficiency is improved at the same time, at the moment, the heated mold can be immediately fed into a new mold to be heated through the feeding device after being conveyed into the cooling bin, and the cooled mold can be taken through the feeding device, so that circulation is realized, and waiting time required among all components is reduced, in addition, the mold conveying device adopted by the heating bin of the invention arranges the push rod and the push rod driving piece outside the heating bin, thereby effectively ensuring the service life of the mold conveying device, reducing the heat-resisting requirement of the push rod driving piece, realizing the sealing of the heating bin by arranging the sealing component, and avoiding the problem that the sealing effect and the heat loss are difficult to realize due to the arrangement of the push hole.

Drawings

FIG. 1 is a schematic view of a first angular configuration of the present invention;

FIG. 2 is a second angular configuration of the present invention;

FIG. 3 is a schematic view of the opening structure of the gate in the casting bin according to the present invention;

FIG. 4 is a schematic view of the closure of the casting bin door according to the present invention;

FIG. 5 is a schematic view of a third angled structure of the present invention (hiding the top cover of the cartridge body);

FIG. 6 is a front cross-sectional view of the present invention;

fig. 7 is a top cross-sectional view of the present invention.

In the figure, 1-casting bin; 11-a cabin body; 111-opening; 112-material passing holes; 113-push hole; 114-a sealing cover; 115-a transition piece; 12-a bin gate; 13-a bin gate opening and closing component; 14-a bin gate hold down assembly; 141-driving element one; 142-a compact; 2-intermediate frequency heating device; 3-a cooling device; 4-a feeding device; 41-fork plate; 411-plate body; 412-a fork strip; 42-fork plate drive; 5-a mould conveying device; 51-a push rod; 52-pusher rod drive; 521-straight cylinder four; 522-connecting plate; 53-a sealing assembly; 531-driving part two; 532-plugging plate; 5321-a connecting rod; 6-a material ejecting device; 61-a top plate; 62-a top plate drive; 7-a mould.

Detailed Description

As shown in fig. 1-7, the present invention comprises a vacuum heating bin and a cooling bin, two feeding devices 4 for respectively conveying a mold 7 containing a material to be cast into the vacuum heating bin and conveying the mold 7 out of the cooling bin, and a mold conveying device 5 for pushing the mold 7 to move from the vacuum heating bin to the cooling bin, wherein the vacuum heating bin comprises a bin body 11, the opposite sides of the bin body 11 are respectively provided with a material passing hole 112 and a pushing hole 113 communicated with the cooling bin, the mold conveying device 5 comprises a push rod 51 and a push rod driving part 52, the push rod driving part 52 is arranged outside the bin body 11 and connected with the push rod 51, the push rod driving part 52 drives the push rod 51 to penetrate through the pushing hole 113 to push the mold 7 in the bin body 11 from the material passing hole 112 to the cooling bin, one side of the material passing hole 112 is provided with a sealing cover 114, the outside of the push hole 113 is provided with a sealing component 53, the sealing assembly 53 comprises a second driving member 531 arranged at one side of the pushing hole 113 and a blocking plate 532 arranged at the output end of the second driving member 531, and when the second driving member 531 drives the blocking plate 532 to be far away from the pushing hole 113, the second driving member 531 does not influence the pushing rod 51 to pass through the pushing hole 113.

The invention sets a vacuum heating bin and a cooling bin in sequence, taking silver ingot casting as an example, after silver powder is loaded into a mould 7 and a mould cover plate is covered, the silver powder is sent into the heating bin through a feeding device 4 for heating and casting, after casting is finished, the mould 7 is directly pushed into a bin body 11 of the cooling bin through a mould conveying device 5 for rapid cooling so as to realize rapid butt joint of casting and cooling, the heating bin and the cooling bin are arranged in an isolated way, the mutual temperature can not interfere with each other, the energy consumption loss is effectively reduced, and the casting efficiency can be improved, at the moment, after the heated mould 7 is conveyed into the cooling bin, the new mould 7 can be sent into the heating bin through the feeding device 4 for heating, and the cooled mould 7 can also be taken through the feeding device 4, so that circulation can be realized, and the waiting time required among all components can be reduced, in addition, the mold conveying device 5 adopted by the heating bin of the invention has the advantages that the push rod 51 and the push rod driving piece 52 are arranged outside the heating bin, so that the service life of the heating bin is effectively ensured, the heat-resisting requirement of the push rod driving piece 52 is reduced, the sealing of the heating bin is realized by arranging the sealing component 53, and the problems of difficulty in realizing the sealing effect and heat loss caused by the arrangement of the push hole 113 are solved.

In the invention, the vacuum heating bin and the cooling bin both comprise casting bins 1, the structures are basically consistent, and only the casting bins 1 adopted by the cooling bin are not provided with pushing holes 113.

The catch bar driving piece 52 comprises a straight line cylinder four 521 fixedly arranged on the bin body 11 and a connecting plate 522 arranged at the end part of the straight line cylinder four 521, the catch bar 51 is arranged on the connecting plate 522 and is arranged towards the push hole 113, the axis of the catch bar 51 is coincided with the axis of the push hole 113, and therefore when the catch bar driving piece 52 drives the catch bar 51 to stretch into the limit position in the bin body 11, the overall size of the bin body 11 and the catch bar driving piece 52 is small, transportation and storage are facilitated, and occupation of too large space is avoided.

The second driving piece 531 is a rotary compressing cylinder, the blocking plate 532 is arranged on the rotary compressing cylinder through a connecting rod 5321, the axis of the rotary compressing cylinder is parallel to the axis of the pushing hole 113, the blocking plate 532 is directly blocked by the rotary compressing cylinder to block the pushing hole 113 in the embodiment, and the sealing effect in the bin body 11 is ensured.

All be provided with liftout device 6 in vacuum heating storehouse and the cooling bin, 11 one side in the storehouse body in vacuum heating storehouse and the cooling bin is provided with door 12, material feeding unit 4 sets up in door 12 position, including fork board 41 and the fork board driving piece 42 of the 41 rectilinear movement of drive fork board, fork board 41 includes plate body 411, sets up two fork strips 412 that are close to door 12 one side at plate body 411, liftout device 6 includes roof 61 and the roof driving piece 62 that drives roof 61 and reciprocate, the length of roof 61 is less than the distance between two fork strips 412. The feeding and the material taking of the casting mold 7 are realized by arranging the material ejecting device 6 in the bin body 11 and arranging the material feeding device 4 outside the bin body 11, the material ejecting device 6 can further convey the mold 7 into the intermediate frequency heating device 2 or the cooling device 3 after unloading the mold 7 from the material feeding device 4, the feeding difficulty and the time spent are greatly simplified, wherein the material feeding device 4 adopts a fork plate 41 structure, the fork plate comprises a plate body 411 and two fork strips 412 arranged on one side of the plate body 411 close to the opening 111, the length of a top plate 61 of the material ejecting device 6 is smaller than the distance between the two fork strips 412, namely after the two fork strips 412 receive the mold 7 and extend into the bin body 11, the top plate 61 of the material ejecting device 6 rises to eject the part of the mold 7 between the two fork strips 412 and further eject upwards for a certain distance, the fork strips 412 are reset after the mold 7 is separated from the fork strips 412, the feeding of the mold 7 and the discharging in the bin body 11 are sequentially completed, in addition, the top plate 61 of the material ejecting device 6 is reset or moved upwards to enable the die 7 to enter the intermediate frequency heating device 2 or the cooling device 3, the whole process is continuous, the reaction is rapid, the feeding time is effectively reduced, and the whole efficiency is improved.

Be provided with intermediate frequency heating device 2 in the vacuum heating storehouse, intermediate frequency heating device 2 is four end to end connection's intermediate frequency hot plate, and intermediate frequency hot plate inboard is copper pipe coil, and the outside is through refractory material parcel, and the intermediate frequency hot plate setting is in door 12 below position, liftout device 6 sets up in intermediate frequency hot plate below position, and in this embodiment, the intermediate frequency heating device 2 of being convenient for cooperates with liftout device 6, improves and carries mould 7 to heating portion and carry out the efficiency of heating.

Be provided with cooling device 3 in the cooling bin, cooling device 3 is a cooling box with opening down, the cooling box sets up in door 12 top position, liftout device 6 sets up in door 12 below position, is convenient for cooperate liftout device 6 directly to carry the mould 7 of accepting in to the cooling box in the same, very big improvement work efficiency.

The cooling box is characterized in that a cooling medium circulation channel is arranged in the cooling box plate body, and a liquid inlet and a liquid outlet which are communicated with the cooling medium circulation channel are further arranged on the outer side of the cooling box, so that the cooling effect is ensured, and continuous cooling is facilitated.

Transition pieces 115 are arranged between the material passing holes 112 and the top plate 61 in the vacuum heating bin and the cooling bin, so that the flow property when the push rod 51 pushes the mold 7 to move is ensured.

The vacuum heating bin and the cooling bin are both connected with a vacuumizing device, so that the casting effect is improved, the influence of graphite mold oxidation on the metal forming quality in the mold is greatly reduced, and in addition, the vacuum heating bin can be filled with inert gas to reduce the oxidation speed of the graphite mold.

The storehouse body 11 is the enclosed construction, and wherein one side is provided with opening 111, and the opening 111 outside is provided with door 12, and the door 12 outside is provided with door subassembly 13 that opens and shuts, door subassembly 13 that opens and shuts drives door 12 shutoff or keeps away from opening 111, still includes at least two sets of door compressing assemblies 14 that set up in door 12 corresponding side, door compressing assemblies 14 is including setting up driving piece 141 and the compact heap 142 of setting on driving piece 141 output in opening 111 one side, and driving piece 141 does not influence door subassembly 13 shutoff or keeps away from opening 111 when driving compact heap 142 keeps away from door 12. Set up the storehouse body 11 into enclosed construction, but storehouse body 11 integrated into one piece, only leave the opening can, only set up opening 111 in one side, the possibility of the gas leakage of the storehouse body 11 of minimizing, reduce the sealed degree of difficulty of the storehouse body 11, finally simplify vacuum chamber's realization degree of difficulty, and through set up door subassembly 13 and door hold-down assembly 14 that opens and shuts in the door 12 outside, when realizing that the casting mould carries, guarantee the sealed effect of opening 111 department, wherein, door hold-down assembly 14 is one 141 of driving piece and compact heap 142 of at door 12 corresponding side for at least two sets of settings, door 12 that drives to opening 111 department through door subassembly 13 that opens and shuts provides the pressure of certain size, avoid door 12 to produce the gap when shutoff opening 111, influence the interior vacuum effect of storehouse body 11.

Claims

1. A vacuum casting device is characterized by comprising a vacuum heating bin, a cooling bin, two feeding devices (4) and a mold conveying device (5), wherein the vacuum heating bin and the cooling bin are sequentially arranged, the two feeding devices are respectively used for conveying a mold (7) filled with a raw material to be cast into the vacuum heating bin and conveying the mold (7) out of the cooling bin, the mold conveying device is used for pushing the mold (7) to move from the vacuum heating bin to the cooling bin, the vacuum heating bin comprises a bin body (11), material passing holes (112) and pushing holes (113) which are communicated with the cooling bin are respectively formed in opposite sides of the bin body (11), the mold conveying device (5) comprises a push rod (51) and a push rod driving piece (52), the push rod driving piece (52) is arranged on the outer side of the bin body (11) and is connected with the push rod (51), the push rod driving piece (52) drives the push rod (51) to penetrate through the pushing holes (113) to push the mold (7) in the bin body (11) from the material passing holes (112) to the cooling bin, the material passing hole (112) one side is provided with sealed lid (114), it is provided with seal assembly (53) to promote the hole (113) outside, seal assembly (53) are including setting up driving piece two (531) and the shutoff board (532) of setting on driving piece two (531) output in promotion hole (113) one side, and driving piece two (531) are kept away from when promoting hole (113) in driven shutoff board (532), do not influence catch bar (51) and pass and promote hole (113).

2. The vacuum casting equipment as claimed in claim 1, wherein the push rod driving member (52) comprises a linear cylinder four (521) fixedly arranged on the bin body (11) and a connecting plate (522) arranged at the end part of the linear cylinder four (521), the push rod (51) is arranged on the connecting plate (522) and is arranged towards the push hole (113), and the axis of the push rod (51) is coincident with the axis of the push hole (113).

3. The vacuum casting apparatus as claimed in claim 2, wherein the second driving member (531) is a rotary pressing cylinder on which the closing plate (532) is disposed through a connecting rod (5321), and the axis of the rotary pressing cylinder is parallel to the axis of the pushing hole (113).

4. The vacuum casting equipment as claimed in any one of claims 1 to 3, wherein the vacuum heating bin and the cooling bin are both provided with an ejection device (6), a bin door (12) is arranged on one side of a bin body (11) of the vacuum heating bin and the cooling bin, the feeding device (4) is arranged at the position of the bin door (12) and comprises a fork plate (41) and a fork plate driving part (42) for driving the fork plate (41) to move linearly, the fork plate (41) comprises a plate body (411) and two fork strips (412) arranged on one side of the plate body (411) close to the bin door (12), the ejection device (6) comprises a top plate (61) and a top plate driving part (62) for driving the top plate (61) to move up and down, and the length of the top plate (61) is smaller than the distance between the two fork strips (412).

5. Vacuum casting equipment according to claim 4, characterized in that the vacuum heating chamber is provided with a medium frequency heating device (2), the medium frequency heating device (2) is four medium frequency heating plates connected end to end, the inner side of the medium frequency heating plate is provided with a copper pipe coil, the outer side of the medium frequency heating plate is wrapped by refractory material, the medium frequency heating plate is arranged at a position below the chamber door (12), and the liftout device (6) is arranged at a position below the medium frequency heating plate.

6. Vacuum casting apparatus according to claim 4, characterized in that the cooling chamber is provided with a cooling device (3), the cooling device (3) being a downwardly open cooling box arranged in a position above the chamber door (12), and the ejector (6) being arranged in a position below the chamber door (12).

7. The vacuum casting apparatus according to claim 5, wherein a cooling medium flow passage is provided in the cooling box plate, and a liquid inlet and a liquid outlet communicating with the cooling medium flow passage are further provided outside the cooling box.

8. Vacuum casting apparatus according to claim 4, characterized in that a transition piece (115) is arranged between the material passing hole (112) and the top plate (61) in the vacuum heating and cooling chambers.

9. Vacuum casting apparatus as claimed in any of claims 1 to 3 and 5 to 8, wherein the vacuum heating and cooling chambers are connected to a vacuum extractor.

10. The vacuum casting apparatus as claimed in any one of claims 1 to 3 and 5 to 8, is characterized in that the bin body (11) is of a closed structure, one side of the bin body is provided with an opening (111), the outer side of the opening (111) is provided with a bin door (12), the outer side of the bin door (12) is provided with a bin door opening and closing component (13), the bin gate opening and closing component (13) drives the bin gate (12) to plug or be far away from the opening (111), and also comprises at least two sets of bin gate pressing components (14) arranged on the corresponding sides of the bin gate (12), the bin door pressing component (14) comprises a first driving part (141) arranged on one side of the opening (111) and a pressing block (142) arranged on the output end of the first driving part (141), when the first driving part (141) drives the pressing block (142) to be far away from the bin door (12), the closing and the blocking of the bin door opening and closing component (13) or the distance from the opening (111) are not influenced.