CN210648462U - Vertical casting guiding device of work piece - Google Patents

Abstract

The utility model discloses a vertical casting guiding device of work piece has overcome the difficult problem of holding of casting quality of the work piece that the decorative pattern is complicated among the prior art. The utility model discloses a contain the base plate, the casting hopper, the casting house steward, the casting divides the liquid pipe, the balanced pipe of liquid level, hold the cinder room, vertical casting pipe, the balanced branch pipe of liquid level divides the pipe and the drain to manage, wherein the below exit linkage casting of casting house steward divides the liquid pipe, the casting divides the inlet of liquid level balanced pipe to connect, the liquid outlet of the balanced pipe of liquid level connects the inlet of reconnecting vertical casting pipe behind the cinder room of holding, the liquid outlet of vertical casting pipe passes through the balanced branch union coupling base plate of liquid level, the balanced minute pipe of liquid level divides the drain of pipe and base plate opposite side to manage the intercommunication, the drain is divided and is managed to. The liquid level equalizing pipe and the liquid level equalizing branch pipe in the technology can level and unify the casting liquid level on the same horizontal plane to the maximum extent, and the totem iron art door with superior quality is cast by one-time casting molding.

Description

Vertical casting guiding device of work piece

Technical Field

The utility model relates to a processing field of cast iron goods especially relates to a vertical casting guiding device of work piece.

Background

The cast iron gate has high strength and good protection effect, and is widely used as a fence house gate, but when the complexity of patterns and patterns is high, the finished product rate of the cast iron gate is not high, the cast iron gate is easy to produce large molding area, and the strength, the surface quality and the artistic effect of a casting are influenced by impurities such as cold shut, secondary oxidation and the like. The complex patterns are mainly used for reference of various images such as landscape, birds and beasts, the convex-concave contrast of pictures is distinct, the stereoscopic impression is strong, and the picture is popular with modern people. Although the lost foam casting process can be used for manufacturing a mold and is suitable for manufacturing a large-sized casting, for casting the totem iron door with a complex shape, as the surface of the totem iron door is distributed with texture effects which can not be processed secondarily, the molten iron is not easy to fill the cavity, and the process can cause cold shut to the surface textures of the iron door in the manufacturing process, thereby influencing the overall artistic effect and the market value of the iron door. The lost wax casting technology is ideal for achieving perfect surface effect and complex object structure, but the technology can only be used for manufacturing small castings, and the wax pattern is easy to deform and is difficult to operate when large castings are manufactured.

Since the workpiece with high complexity of patterns and patterns is difficult to cast, people sometimes replace direct casting molding with iron wire welding and polish the workpiece with beautiful appearance by using tools, so that the beautiful patterns and patterns cannot be presented perfectly, and the defects of unevenness and unevenness of pattern joints, mottled rust at welding positions and defects of manual welding are replaced by defects in the beauty of pattern iron doors, so that the innovative casting technology of the workpiece with the complex patterns is urgently needed to be realized.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the difficult problem of holding of casting quality of the work piece that the decorative pattern is complicated among the prior art provides a vertical casting guiding device of the work piece rational in infrastructure, excellent in use effect.

The technical solution of the utility model is that, a vertical casting guiding device of work piece with following structure is provided: the utility model provides a vertical casting guiding device of work piece, contain the base plate, the casting hopper, the casting house steward, the casting divides the liquid pipe, the balanced pipe of liquid level, hold the slag chamber, vertical casting pipe, the balanced pipe and the drain of dividing of liquid level, wherein the casting hopper is located the top import of casting house steward, the below exit linkage casting branch liquid pipe of casting house steward, the casting divides the inlet of liquid level balanced pipe to connect, the inlet of vertical casting pipe is reconnected behind the slag chamber to the liquid outlet connection of liquid level balanced pipe, the liquid outlet of vertical casting pipe is through the balanced pipe connection base plate of dividing of liquid level, the balanced branch pipe of liquid level divides the drain of pipe and base plate opposite side to divide the pipe to communicate, the drain divides to be.

Preferably, the casting liquid distributing pipes are horizontally arranged, the number of the casting liquid distributing pipes is 2-10, the casting liquid distributing pipes are connected with the liquid level equalizing pipes and then connected with the vertical casting guide pipes, the liquid inlet of the highest casting liquid distributing pipe is connected with the casting main pipe, and 1-9 groups of casting liquid distributing pipes and the liquid level equalizing pipes are sequentially connected on the vertical casting guide pipes at intervals in series.

Preferably, the liquid level equalizing pipes are bent upwards, the cross sections of the bent pipes are circular, square or oval, the projection shapes of the bent pipes on the plumb surface are Z-shaped, L-shaped or trapezoidal, the number of the liquid level equalizing pipes is 2-30, slag containing chambers are arranged at the highest positions of the liquid level equalizing pipes, and the horizontal heights of the lowest positions of the outlets of the liquid level equalizing pipes are equal.

Preferably, the slag containing chamber is a square or spherical shell.

Preferably, the number of the vertical casting guide pipes is 2-10, the cross section of the vertical casting guide pipe is circular, square or oval, and the vertical casting guide pipes are straight pipes, folding pipes or arc pipes.

Preferably, the number of the liquid level equalizing branch pipes is 2-20, wherein the lowest position of the inlet of the liquid level equalizing branch pipe connected with the vertical casting conduit is lower than the lowest position of the outlet of the liquid level equalizing branch pipe connected with the base plate, and the radial section of the liquid level equalizing branch pipe is parallelogram, Z-shaped or trapezoid.

Preferably, the liquid guide branch pipe is provided with 3-30 casting liquid outlets, and the liquid guide branch pipe is a straight pipe, a folded pipe or an arc pipe.

Preferably, the base plate, the casting hopper, the main casting pipe, the branch casting pipe, the liquid level equalizing pipe, the slag containing chamber, the vertical casting guide pipe, the liquid level equalizing branch pipe and the branch liquid guide pipe are all made of resin sand materials.

Compared with the prior art, the utility model discloses vertical casting guiding device of work piece has following advantage: the method comprehensively considers various problems possibly encountered by casting the totem iron art door, and adopts a corresponding solution, such as the resin sand molding process has the advantages of simplicity, time saving, convenient operation, difficult deformation of solidified castings, high strength and the like. Through the quality analysis of several conventional casting processes, the actual molding difficulty and casting risk of the iron door are combined, and finally resin sand molding is adopted as a main manufacturing process. The success rate of casting the totem iron art door is effectively improved, the totem iron art door is cast and molded at one time, and the totem iron art door artwork with superior quality is directly cast.

The liquid level equalizing pipe and the liquid level equalizing branch pipe on the outer side of the base plate can level and unify the casting liquid level on the same horizontal plane to the maximum extent under the superposition of multiple functions, the liquid level on the same horizontal plane keeps smaller height difference to the maximum extent, so that the phenomenon that air is entrapped in the casting process of a special workpiece such as a pattern iron art door is avoided, impurities in the casting liquid can enter the inverted sealed container when the impurities float to the highest position through the inverted sealed container such as a scum bag, and the phenomenon of inclusion in the casting process is avoided to the maximum extent.

The liquid guide branch pipe and the casting liquid outlet on the inner side of the substrate are used for obtaining the casting liquid outlet with proper density degree to pave the casting liquid according to the iron content of a unit area of a workpiece to be cast. The device avoids the phenomena of direct and diffuse pouring of the casting liquid in the die cavity, gas inclusion, uneven distribution of the casting amount of the workpiece and quick cooling of part of the casting liquid due to large casting die cavity, and defective products or waste products. The flow path of the casting liquid is divided into another pipeline, the heat loss of the casting liquid in the pipeline is far less than the loss of the casting liquid in the die cavity, and a plurality of liquid level balancing devices are arranged in the pipeline, so that the liquid levels of the casting liquid with different patterns on the same horizontal plane are kept consistent as much as possible, the phenomena of air inclusion and non-uniformity are avoided, and the high forming rate of workpieces with complex textures is realized.

Drawings

Fig. 1 is a schematic outside structure view of a first embodiment of a middle-standing casting diversion device of the present invention;

fig. 2 is a schematic view of an inner side structure of a first embodiment of the middle-standing casting diversion device of the present invention;

fig. 3 is a schematic structural diagram of the outer side of the second embodiment of the middle-standing casting diversion device of the present invention;

fig. 4 is a schematic structural view of an assembled working state of the middle-standing casting diversion device of the present invention;

fig. 5 is an enlarged schematic structural view of the fixing snap ring in fig. 4 of the middle vertical casting diversion device of the present invention.

Detailed Description

In the description of the attached drawings, the reference numeral 1 is a casting hopper, 2 is a casting main pipe, 2' is a casting liquid dividing pipe, 3 is a base plate, 4 is a liquid level equalizing pipe, 5 is a slag containing chamber, 6 is a vertical casting guide pipe, 7 is a liquid level equalizing dividing pipe, 8 is a liquid guiding dividing pipe, 9 is a fixing lug, 10 is a casting liquid outlet, 11 is a workpiece, 12 is a fixing clamp ring, and 13 is a fastening bolt.

The utility model discloses in the design of preparation work piece (especially pattern is the cast iron gate of design key), need consider following several technical difficulties:

1. when designing the pattern, the modeling suitable for the house is designed by inquiring and referring to the relevant data of the traditional totem pattern of each country and combining the structure of the iron gate of our country.

2. Designing a mould, firstly calculating the height, width and length of the iron gate, the distribution range of a casting system and the space required by the distribution process, the number, size and position of ingates

3. How to ensure that the cast iron door can meet the requirements of surface texture and texture effects.

4. The molding area of the iron gate is large, cold shut is easy to generate, and impurities such as molten iron oxidation can influence the strength, the surface quality and the artistic effect of the casting.

5. The three-dimensional pouring height is large, the vertical drop height is large, the molten iron liquid can produce huge expansive force instantly when falling, the expansion box and the overweight are easily caused, the destructive power is provided for the bottom of the iron door, and particularly the control on the average error of the temperature in the final pouring process is realized.

6. The one-step casting molding has no cracking, no welding and no difficulty due to the high simulation requirement of complex patterns.

The vertical casting guiding device for the workpiece of the present invention is further described with reference to the accompanying drawings and the following detailed description: the utility model provides a vertical casting guiding device of work piece, contain base plate 3, casting hopper 1, the casting house steward 2, casting branch pipe 2 ', the balanced pipe 4 of liquid level, hold the sediment room 5, vertical casting pipe 6, the balanced branch pipe 7 of liquid level and drain branch pipe 8, wherein casting hopper 1 is located the top import of casting house steward 2, the below exit linkage casting branch pipe 2 ' of casting house steward 2, casting branch pipe 2 ' connects the inlet of the balanced pipe 4 of liquid level, the liquid outlet of the balanced pipe 4 of liquid level is connected and is connect the inlet of vertical casting pipe 6 behind holding the sediment room 5, the liquid outlet of vertical casting pipe 6 passes through the balanced branch pipe 7 of liquid level and connects base plate 3, the balanced branch pipe 7 of liquid level and the drain branch pipe 8 intercommunication of 3 opposite sides of base plate, be equipped with casting liquid outlet 10 on the drain branch pipe 8.

The base plate 3 plays a role in supporting and arranging the liquid guide branch pipe 8, when the liquid level balance branch pipe 7 in front of the base plate 3 is directly contacted with the casting gate of the workpiece 11, and when the liquid guide branch pipe 8 arranged behind (or in front of) the base plate 3 is not contacted with the casting gate of the workpiece 11, the arrangement is more flexible, the liquid guide branch pipe 8 behind (or in front of) the base plate 3 can accurately distribute the position of the casting liquid outlet 10 as far as possible, so that the liquid guide branch pipe faces the die cavity of the same casting iron-eating amount part of the workpiece 11, the trend of the liquid guide branch pipe 8 is partially or completely planned in advance, the liquid guide branch pipe directly passes through the casting liquid outlet 10 and enters the position near the workpiece 11 to be matched with a proper casting paving area, and the casting workpiece 11 is formed. The workpiece 11 may be a totem gate, an artistic railing, a large-plane (hollow) workpiece on various machines, or other common conventional workpieces in life.

The casting liquid separating pipes 2 ' are horizontally arranged, the number of the casting liquid separating pipes is 2-10, the casting liquid separating pipes are connected with the liquid level equalizing pipes 4 and then connected with the vertical casting guide pipe 6, the liquid inlet of the highest casting liquid separating pipe 2 ' is connected with the casting main pipe 2, and 1-9 groups of casting liquid separating pipes 2 ' and the liquid level equalizing pipes 4 are sequentially connected on the vertical casting guide pipe 6 at intervals in series. In the process of casting the totem iron door, more than two groups of casting liquid separating pipes 2' and liquid level equalizing pipes 4 are generally needed to be used in combination.

The liquid level equalizing pipe 4 is the bending-up pipe, the cross section of the bending-up pipe is circular, square or oval, wherein the projection shape of the bending-up pipe on the plumb face is Z type, L type or trapezoidal, the quantity of the liquid level equalizing pipe 4 is 2-30, the highest position of the liquid level equalizing pipe 4 is provided with a slag containing chamber 5, the lowest position horizontal height of the outlet of the liquid level equalizing pipe 4 is equal, the bending-up pipe is the casting liquid level for unifying the horizontal plane, and the liquid level equalizing pipe is poured into the vertical casting conduit 6 downwards after reaching the same horizontal plane.

The slag containing chamber 5 is a square or spherical shell.

The number of the vertical casting guide pipes 6 is 2-10, the cross sections of the vertical casting guide pipes are circular, square or oval, and the vertical casting guide pipes are straight pipes, folding pipes or arc pipes.

The number of the liquid level equalizing branch pipes 7 is 2-20, wherein the lowest position of an inlet of the liquid level equalizing branch pipe 7 connected with the vertical casting guide pipe 6 is lower than the lowest position of an outlet of the liquid level equalizing branch pipe 7 connected with the base plate 3, and the radial section of the liquid level equalizing branch pipe 7 is parallelogram, Z-shaped or trapezoid.

The liquid guide branch pipe 8 is provided with 3-30 casting liquid outlets 10, and the liquid guide branch pipe 8 is a straight pipe, a folded pipe or an arc pipe. The positions and the number of the casting outlets 10 on the liquid guiding branch pipe 8 are determined according to the unit casting area of the workpiece 11, and the casting outlets 10 are distributed and designed according to the paving area covering about 30-100 square centimeters.

The base plate 3, the casting hopper 1, the casting main pipe 2, the casting liquid distributing pipe 2', the liquid level equalizing pipe 4, the slag containing chamber 5, the vertical casting guide pipe 6, the liquid level equalizing branch pipe 7 and the liquid guiding branch pipe 8 are all made of resin sand materials. The mass ratio of the Baozhu sand to the furan resin to the curing agent is 100: 1.2: 0.48, and the Baozhu sand, the furan resin and the curing agent are placed into sand treatment equipment to be uniformly stirred, pressed, bonded and molded.

The working process of the utility model comprises the following steps, the mass ratio of three materials of the configured jewel sand, furan resin and curing agent is 100: 1.2: 0.48, the jewel sand is put into a sand processing device and is uniformly stirred, a flat plate is placed on a platform of a micro-vibration machine, a half mould is placed on the flat plate, a casting riser and a plurality of corresponding positioning pins are arranged on the half mould, sand boxes with upper and lower openings are placed around the half mould, the processed jewel sand is injected into the sand box through a sand mixer, the micro-vibration machine is started to compact the jewel sand, the part higher than the sand box is manually shoveled, after half an hour of solidification, the sand box is lifted by a travelling crane and separated from a bottom mould, and a half cavity is formed inside the sand box; in the same method, a half-mold with a casting liquid inlet is used for manufacturing the other half of the mold cavity with the casting liquid inlet, wherein the casting liquid inlet is correspondingly connected with a casting liquid outlet 10 on a flow guide device, and the inner wall of each mold cavity is sprayed with high-temperature resistant isolating paint; after the two half-shaped dies pass through each positioning pin hole, the two half-shaped dies are ensured to splice out a complete qualified workpiece 11 without burrs.

1.2. Two minute moulds of amalgamation and guiding device: connecting the positioning holes on the two half-edge cavities through positioning pins to ensure that patterns on two edges are placed consistently, putting one side of a fixed clamping ring 12 between fixing lugs 9, fastening the fixed clamping ring 12 outside a sand box by using bolts, smearing a gap between the sand boxes by using box sealing paste, horizontally placing a flow guide device on an iron plate, connecting a casting liquid inlet arranged on one side of the bonded cavity with a casting liquid outlet 10 of the flow guide device, then fastening the flow guide device on the fixed clamping ring 12 outside the sand box by using bolts, turning the three parts by using a travelling crane for 90 degrees, and keeping a casting hopper 1 to face upwards; wherein the box sealing paste is a paste prepared by 200-mesh zircon powder, bentonite and an adhesive.

1.3, preparing a casting liquid: steel, reclaimed materials and pig iron are mixed according to the mass ratio of 80%: 15%: 5 percent of the casting liquid is matched and tested, and the finally obtained casting liquid contains the following elements: silicon: manganese: sulfur: the mass ratio of phosphorus is 3.9%: 2.8%: 0.015%: 0.009%: 0.04 percent, putting the mixture into a medium-frequency electric furnace after preparation, heating the mixture at 1550 ℃, smelting the mixture for 1 hour, pouring a deslagging agent into liquid molten iron of the medium-frequency electric furnace, and fishing out dregs condensed on the surface of the molten iron by using an iron fork for later use;

1.4, spheroidizing: mixing molten iron and a nodulizer according to the mass ratio of 1: 1.5 percent, putting the molten iron into a prepared clean spheroidizing bag; hoisting the spheroidizing ladle to the side of the electric furnace by using a travelling crane, automatically lifting the electric furnace to pour molten iron in the furnace into the spheroidizing ladle, and starting to react after a spheroidizing agent in the spheroidizing ladle is fused with the molten iron, wherein the spheroidizing time is 1 minute, and the spheroidized material model is nodular cast iron 400-18;

1.5. casting: pouring the casting liquid into a casting hopper 1 at one time, pouring the casting liquid into a casting liquid distributing pipe 2 'through a casting main pipe 2, uniformly spreading the casting liquid in the casting liquid distributing pipe 2' and turning back to rise, the liquid level equalizing pipe 4 is arranged at the liquid outlet and is injected into the vertical casting guide pipe 6 from the same height surface, the casting liquid enters the bottom of the vertical casting guide pipe 6 after passing through the plurality of groups of casting liquid distributing pipes 2' and the liquid level equalizing pipe 4, the plurality of groups of structure structures can ensure the vertical casting workpiece 11 to the maximum extent, under the action of leveling liquid levels and uniform casting in a plurality of height range sections, the liquid guide branch pipes 8 on the vertical casting guide pipe 6 and the back surface of the base plate 3 are communicated through the liquid level equalizing branch pipe 7, the casting is stopped until a casting riser at the highest position of the vertical sand box has casting liquid to be blown out, and scum in the casting process gradually rises into a scum containing chamber 5 connected with the liquid level equalizing pipe 4 under the action of buoyancy; different workpieces 11 are solidified and molded after 3-6 hours respectively, bolts between the flow guide device and the sand boxes are taken down, the bolts are cut and separated by a plasma cutting machine, the bolts at the positions of the fixing clamp rings 12 of the two sand boxes are taken down, one sand box is lifted by a crane to be separated from the workpieces 11, and the other half of the workpieces 11 are taken out of the sand boxes;

1.6, normalizing the workpiece 11: heating to 800 deg.c in a heating furnace, taking out and naturally cooling for 6 hr.

And taking out, polishing and coating paints of various colors to obtain the iron door of the product. Various sand, resin, agent, paste, tool and other articles used in the above casting process are commercially available, but this technique does not exclude a slight adjustment according to actual conditions and use thereof.

Claims (8)

1. The utility model provides a vertical casting guiding device of work piece which characterized in that: the liquid-level equalizing device comprises a base plate, a casting hopper, a casting main pipe, a casting liquid dividing pipe, a liquid-level equalizing pipe, a slag containing chamber, a vertical casting guide pipe, a liquid-level equalizing branch pipe and a liquid guide branch pipe, wherein the casting hopper is positioned at an inlet above the casting main pipe, a lower outlet of the casting main pipe is connected with the casting liquid dividing pipe, the casting liquid dividing pipe is connected with a liquid inlet of the liquid-level equalizing pipe, a liquid outlet of the liquid-level equalizing pipe is connected with a liquid inlet of the vertical casting guide pipe after being connected with the slag containing chamber, the liquid outlet of the vertical casting guide pipe is connected with the base plate through the liquid-level equalizing branch pipe, the liquid-level equalizing branch.

2. The vertical casting guide device for workpieces as set forth in claim 1, wherein: the casting liquid separating pipes are horizontally arranged, the number of the casting liquid separating pipes is 2-10, the casting liquid separating pipes are connected with the liquid level equalizing pipes and then connected with the vertical casting guide pipes, the liquid inlet of the highest casting liquid separating pipe is connected with the casting main pipe, and 1-9 groups of casting liquid separating pipes and the liquid level equalizing pipes are sequentially connected on the vertical casting guide pipes at intervals in series.

3. The vertical casting guide device for workpieces as set forth in claim 1, wherein: the liquid level equalizing pipe is an upward bent folding pipe, the cross section of the folding pipe is circular, square or oval, the projection shape of the folding pipe on the plumb surface is Z-shaped, L-shaped or trapezoidal, the number of the liquid level equalizing pipes is 2-30, slag containing chambers are arranged at the highest positions of the liquid level equalizing pipes, and the lowest horizontal heights of the outlets of the liquid level equalizing pipes are equal.

4. The vertical casting guide device for workpieces as set forth in claim 1, wherein: the slag containing chamber is a square or spherical shell.

5. The vertical casting guide device for workpieces as set forth in claim 1, wherein: the number of the vertical casting guide pipes is 2-10, the cross sections of the vertical casting guide pipes are circular, square or oval, and the vertical casting guide pipes are straight pipes, folding pipes or arc pipes.

6. The vertical casting guide device for workpieces as set forth in claim 1, wherein: the number of the liquid level equalizing branch pipes is 2-20, wherein the lowest position of an inlet of the liquid level equalizing branch pipe connected with the vertical casting guide pipe is lower than the lowest position of an outlet of the liquid level equalizing branch pipe connected with the base plate, and the radial section of the liquid level equalizing branch pipe is parallelogram, Z-shaped or trapezoid.

7. The vertical casting guide device for workpieces as set forth in claim 1, wherein: the liquid guide branch pipe is provided with 3-30 casting liquid outlets and is a straight pipe, a folded pipe or an arc pipe.

8. The vertical casting guide device for workpieces as set forth in claim 1, wherein: the base plate, the casting hopper, the casting main pipe, the casting liquid dividing pipe, the liquid level equalizing pipe, the slag containing chamber, the vertical casting guide pipe, the liquid level equalizing dividing pipe and the liquid guiding dividing pipe are all made of resin sand materials.

Images