CN116079003B - Novel tool for iron mold sand-coated four-cylinder crankshaft and production process thereof - Google Patents
Novel tool for iron mold sand-coated four-cylinder crankshaft and production process thereof Download PDFInfo
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- CN116079003B CN116079003B CN202211249242.5A CN202211249242A CN116079003B CN 116079003 B CN116079003 B CN 116079003B CN 202211249242 A CN202211249242 A CN 202211249242A CN 116079003 B CN116079003 B CN 116079003B
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- lower plate
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- 239000004576 sand Substances 0.000 title claims abstract description 84
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000005266 casting Methods 0.000 claims description 48
- 238000001125 extrusion Methods 0.000 claims description 18
- 239000011347 resin Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 13
- 238000000926 separation method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/068—Semi-permanent moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/062—Mechanisms for locking or opening moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
- B22D33/04—Bringing together or separating moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention relates to the field of sand coating of iron molds and discloses a novel tool for a sand coating four-cylinder crankshaft of an iron mold and a production process thereof.
Description
Technical Field
The invention relates to the field of iron mold sand coating, in particular to a novel tool for an iron mold sand coating four-cylinder crankshaft and a production process thereof.
Background
The sand-lined iron mold casting is a casting process that a layer of resin sand is covered on the inner cavity wall of a metal mold and then is directly cast and formed, so that compared with the traditional sand mold manufacturing, the method is simpler, the production efficiency is better, and meanwhile, the sand-lined iron mold casting has the advantages of good surface quality, small machining allowance, low deformation rate, excellent mechanical property and the like;
the iron mold sand-coated casting technology is adopted by internal combustion engine crankshaft production enterprises, the production technology of medium-sized four-cylinder crankshafts in general manufacturers is more and more popular, only 2 or 4 crankshafts are arranged in one casting mould, the technology does not optimize the production capacity and the production efficiency, a certain lifting space exists, the upper and lower plates of the iron mold of the mold are not fixed in the production process, and in the conveying process, the upper plate and the lower plate are possibly misplaced due to pushing and collision, and the shape of a casting cavity and the shape of the casting are influenced, so that the novel tool and the production technology of the iron mold sand-coated four-cylinder crankshaft are provided for solving the problems.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to solve the problems in the prior art and provide a novel tool for a sand-lined iron mold four-cylinder crankshaft and a production process thereof.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
A novel tool for a sand-lined iron mold four-cylinder crankshaft comprises an upper plate and a lower plate, wherein one side surfaces of the upper plate and the lower plate are respectively provided with a casting cavity and a runner, the other sides of the upper plate and the lower plate are respectively provided with a sand shooting hole extending into the casting cavity, the upper surface of the upper plate is provided with a pouring gate extending into the lower plate, the runner is communicated with the casting cavity and the pouring gate, an auxiliary mechanism is arranged in the upper plate and the lower plate and comprises a containing groove arranged on one side opposite to the upper plate and the lower plate, the containing groove is wide in inner part and narrow in opening, an upper inserting rod and a lower inserting rod are respectively and slidingly inserted in the containing groove, when the containing groove is opened upwards, the top surfaces of the lower inserting rod and the upper inserting rod are flush with the opening of the containing groove under the condition of no external force, when the opening of the containing groove is downward, the upper inserting rod is pulled out of the containing groove by gravity under the condition of no external force, the lower insert rod and the upper insert rod are tightly attached to the inner wall of the opening of the accommodating groove, the inner wall of the accommodating groove below is provided with a through hole extending to the outer side of the lower plate, the surface of the lower insert rod is provided with an inclined chute, the outer side of the chute is slidably provided with a buckling frame, the outer side of the buckling frame is in threaded connection with an extrusion rod extending into the through hole, the extrusion rod completely penetrates through the through hole to extend to the outer side of the lower plate, a spring piece is fixedly connected between the extrusion rod and the inner wall of the through hole, the lower insert rod and the upper insert rod are respectively arranged on the upper plate and the lower plate, so when the die is assembled, the upper insert rod pushes the lower insert rod to be inserted into the accommodating groove below, the upper plate and the lower plate are locked at the horizontal position, the upper plate and the lower plate are prevented from being pushed and collided in the conveying process, the upper plate and the lower plate are prevented from being dislocated, the shape of the die cavity and the shape of the casting are prevented, meanwhile, when the extrusion rod and the buckling frame are matched in die opening and core shooting, one section of pushing extrusion rod enables the lower inserting rod and the upper inserting rod to be flush with the opening of the accommodating groove, so that folding angles (the angles of the combined connecting positions of articles with two surfaces not in the same plane) are avoided, a large amount of resin sand residues (corners, the adhesion surfaces in the same space are larger and sand is easy to store) can be avoided, and cleaning is facilitated.
Furthermore, the number of the casting cavities is six, and the six casting cavities are symmetrically arranged, so that the number of single castings is increased, the working efficiency is improved, and the labor intensity is greatly reduced.
Further, each casting cavity is provided with two sand injection holes, so that porous sand injection is improved, resin sand can be distributed more uniformly during sand injection, leakage points of the sand mould caused by uneven bending in the casting cavity are avoided, and the quality of the sand mould is improved to a certain extent.
Further, the outside of going up the inserted bar has also offered the spout of slope, the inclined direction of top spout and below spout is opposite, install the lock frame in the top spout too, set up the intercommunicating pore that extends to upper plate lower surface in the top accepting groove, the inside sliding connection of intercommunicating pore has the impact bar of being connected with the top lock frame, through set up the impact bar on the contact surface of upper plate and lower plate, so upper plate and lower plate are directly by the molten iron adhesion that splashes, the second section bulldozes the extrusion pole and makes lower inserted bar lift up the inserted bar, upward inserted bar can outwards promote the impact bar through the lock frame of top, the impact bar pushes up the surface of lower plate, give an ascending power to upper plate and lower plate's separation, help upper plate and lower plate from the centre like this, its course of working is far simple with follow outside with upper plate and lower plate separation, this process easy operation simultaneously, also need not artifical the participation, can go on in the conveying process.
Further, the upper chute is divided into a vertical section and an inclined section, so that when the lower inserting rod pushes the upper inserting rod out of the lower accommodating groove by one section of the extruding rod, the upper buckling frame moves on the vertical section of the upper chute, the impact rod is not affected, and useless work is not carried out between the mechanisms.
Further, the extension line of the communication hole is intersected with the extension line of the inclined section of the upper chute, so that when the upper inserting rod is prevented from moving, the upper buckling frame does not slide in the upper Fang Huacao, the impact rod and the upper inserting rod move in the same direction, and the stability is improved.
Further, the mounting groove has been seted up to the upper surface of lower shaped plate, the inside of mounting groove is provided with the pinch bar, the pinch bar divide into pressure section, lever section and top sled section three parts, the length of pressure section is greater than top sled section, the impact bar is located the top of pressure section and leaves the part that lever section is apart from the farthest, so utilize the lever principle, when the impact bar stretches out the roof pressure in pressure section, through the conduction of lever section and top sled, can release bigger force, in the deflection process of pinch bar, strut upper shaped plate and lower shaped plate, the separation process of upper shaped plate and lower shaped plate is simpler when like this.
Further, the pry bar is flush with the opening of the mounting groove, so that the surface of the lower plate is flush, and resin sand is prevented from adhering.
Further, the top of going up the shaped plate and lower shaped plate is provided with the sand shooting equipment, and the sand shooting equipment includes the fender sand board, and the bottom fixedly connected with of fender sand board is with the sand shooting mouth and the sealed pad that correspond of shooting hole, and sealed pad is annular, and encircles in the outside of shooting the sand mouth, and sealed pad is made by heat-resisting material, so can avoid the revealing of resin sand.
Novel tool for iron mold sand-lined four-cylinder crankshaft and production process thereof, comprising the following steps:
s1, core shooting: the casting mould cavities of the upper plate and the lower plate are downwards placed on a conveying belt, after the casting mould cavities move to the lower part of the sand shooting equipment, the sand baffle plate is downwards pressed and covered above the upper plate or the lower plate, and the sand shooting nozzle is inserted into the sand shooting hole to shoot resin sand into the casting mould cavities to form a sand mould;
s2, die assembly: reversing the lower plate to enable the casting cavity to be upward, covering the upper plate on the lower plate, pushing the lower rod by the upper rod to enter a containing groove below, and locking the upper plate and the lower plate;
s3, pouring: pouring melted molten iron into a pouring gate through a pouring cup, and enabling the molten iron to flow into six casting cavities through the pouring gate;
s4, cooling and die sinking: after the temperature of the upper plate and the lower plate is lower than two hundred and fifty degrees celsius, the hydraulic equipment pushes the extrusion rod to enable the lower rod to eject the upper rod, and then the upper plate is tried to be removed from the lower plate for the first time;
s5, forcefully die sinking: when the first attempt fails, the extruding rod is further pushed, the impact rod is pushed, the upper plate and the lower plate are pried apart by matching with the prying rod, and then the upper plate is removed from the lower plate in a second attempt;
s6, demolding: the formed crankshaft is taken out, and the residual resin sand is cleaned.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. according to the scheme, the lower inserting rod and the upper inserting rod are respectively arranged on the upper plate and the lower plate, so that when the dies are assembled, the upper inserting rod pushes the lower inserting rod to be inserted into the accommodating groove below, the upper plate and the lower plate are locked at the horizontal position, the upper plate and the lower plate are prevented from being pushed and collided in the conveying process, dislocation of the upper plate and the lower plate is caused, influences on the shape of a casting cavity and the shape of the casting are caused, meanwhile, the extruding rod and the buckling frame are matched, when the dies are opened and the cores are shot, the extruding rod is pushed and pressed for one section, the lower inserting rod and the upper inserting rod are enabled to be flush with the opening of the accommodating groove, the occurrence of a folding angle (the two surfaces are not in the same plane) is avoided, and the angle of the combined joint is avoided, so that a great amount of resin sand is prevented from remaining (corner positions, the adhesion surface in the same space is larger, and sand is easy to store).
2. The number of casting cavities is six, and the six casting cavities are symmetrically arranged, so that the number of single castings is increased, the working efficiency is improved, and the labor intensity is greatly reduced.
3. Every foundry goods die cavity all sets up two sand shooting holes, so improves porous sandblast, and resin sand distributes more evenly when can making the sandblast, avoids leading to the sand mo (u) ld to appear leaking points because of the bending is uneven in the foundry goods die cavity, has promoted the quality of sand mo (u) ld to a certain extent.
4. The impact rod is arranged on the contact surface of the upper plate and the lower plate, so that when the upper plate and the lower plate are directly adhered by splashed molten iron, the two sections push the extrusion rod to enable the lower rod to lift the upper rod, the upper rod can push the impact rod outwards through the buckling frame above, the impact rod props against the surface of the lower plate, an upward force is applied to the upper plate, the upper plate and the lower plate are separated in an auxiliary manner, the upper plate and the lower plate are separated from each other through the middle assistance, the upper plate and the lower plate are separated from each other in a far simple manner in the working process, the upper plate and the lower plate are separated from each other in the outside, and meanwhile, the process is easy to operate, manual participation is not needed, and the process can be carried out in the conveying process.
5. The upper chute is divided into a vertical section and an inclined section, so that when the lower inserting rod is pushed out of the accommodating groove below by the lower inserting rod by one section of the extruding rod, the upper buckling frame moves on the vertical section of the upper chute, the impact rod is not affected, and useless work is not carried out between the mechanisms.
6. The extension line of the communication hole is intersected with the extension line of the inclined section of the upper chute, so that when the upper inserting rod is prevented from moving, the upper buckling frame does not slide in the upper Fang Huacao, the impact rod and the upper inserting rod move in the same direction, and the stability is improved.
7. The mounting groove has been seted up to the upper surface of lower shaped plate, the inside of mounting groove is provided with the pinch bar, the pinch bar divide into pressure section, lever section and top sled section three parts, the length of pressure section is greater than top sled section, the impact bar is located the top of pressure section and leaves the part that lever section is apart from the farthest, so utilize lever principle, when the impact bar stretches out the roof pressure in pressure section, through the conduction of lever section and top sled, can release bigger force, in the deflection process of pinch bar, strut upper shaped plate and lower shaped plate, the separation process of upper shaped plate and lower shaped plate is simpler like this.
8. When the extruding rod is extruded by two sections, the impact rod and the pry bar are matched to help the upper plate and the lower plate to separate, the lower inserting rod enters the accommodating groove above under the condition of two sections of extrusion, so that the upper plate and the lower plate are locked again at the position on the horizontal plane, the upper plate and the lower plate at the moment can only move up and down, and no matter what conditions (vibration, extrusion and collision) occur during separation, the influence on castings in the casting cavity can be avoided.
Drawings
FIG. 1 is an iron-type display of the present invention;
FIG. 2 is a top view of the upper and lower plates of the present invention in a disassembled state;
FIG. 3 is a split bottom view of the upper and lower plates of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2 in accordance with the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 3 in accordance with the present invention;
FIG. 6 is a cross-sectional view of an iron shape of the present invention;
FIG. 7 is a view showing an auxiliary mechanism at the time of mold closing according to the present invention;
FIG. 8 is a view showing an auxiliary mechanism at the time of mold opening according to the present invention;
FIG. 9 is an illustration of an assist mechanism for assisting in separation in accordance with the present invention;
FIG. 10 is an illustration of a sand shooting apparatus of the present invention;
fig. 11 is a bottom view showing the sand shooting apparatus of the present invention.
The reference numerals in the figures illustrate:
1. an upper plate; 2. a lower plate; 3. casting cavity; 4. pouring gate; 5. a gate; 6. sand shooting holes; 7. sand shooting equipment; 71. a sand baffle; 72. a sand shooting nozzle; 73. a sealing gasket; 8. an auxiliary mechanism; 81. a receiving groove; 82. a lower insert rod; 83. a rod is inserted; 84. a through hole; 85. a chute; 86. a buckling frame; 87. an extrusion rod; 88. a spring piece; 89. a communication hole; 810. an impact bar; 811. a mounting groove; 812. and (5) a prying bar.
Detailed Description
The technical scheme of the embodiment is clearly and completely described by combining the disclosed drawings, so that the purposes, technical scheme and beneficial effects of the embodiment of the disclosure are more clear. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Unless otherwise defined, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" and the like means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof without precluding other elements or items. "upper", "lower", "inner", "outer", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.
Referring to fig. 1 to 9, a novel tool for a sand lined four-cylinder crankshaft of an iron mold comprises an upper plate 1 and a lower plate 2, wherein one side surfaces of the upper plate 1 and the lower plate 2 are respectively provided with a casting cavity 3 and a pouring gate 4, the other sides of the upper plate 1 and the lower plate 2 are provided with sand ejection holes 6 which extend into the casting cavity 3, the upper surface of the upper plate 1 is provided with a pouring gate 5 which extends into the lower plate 2, the pouring gate 4 is communicated with the casting cavity 3 and the pouring gate 5, an auxiliary mechanism 8 is arranged in the upper plate 1 and the lower plate 2, the auxiliary mechanism 8 comprises a containing groove 81 which is arranged on one side opposite to the upper plate 1 and the lower plate 2, the containing groove 81 is wide in the inside and narrow in opening, an upper insert rod 83 and a lower insert rod 82 are respectively inserted in the inside of the containing groove 81 in a sliding way, when the opening of the containing groove 81 is upward, the top surfaces of the lower insert rod 82 and the upper insert rod 83 are all flush with the containing groove 81 under the condition of no external force, when the opening of the containing groove 81 is downward, the upper insert rod 83 is pulled out of the containing groove 81 by gravity under the condition of no external force, the upper insert rod 82 and the upper insert rod 83 is connected with the inner wall 84 of the extrusion frame, the lower insert rod 82 is provided with a through hole 84 extending to the inner wall 84, and the extrusion frame 84 is provided with a through hole 84 extending through the inner wall 84, and a threaded hole 84 extending between the lower insert rod 84, and the extrusion frame 84 extending closely, and the lower end 84 is arranged in the inside of the extrusion frame 84;
during die assembly, the lower plate 2 is reversed to enable the casting cavity 3 to be upward, the upper plate 1 is covered on the lower plate 2, in the process, the upper inserting rod 83 pushes the lower inserting rod 82 to enter the accommodating groove 81 below, the upper plate 1 and the lower plate 2 are locked at the horizontal position, as shown in fig. 7, during die opening, the extruding rod 87 pushes the extruding rod 87 first, the extruding rod 87 compresses the spring piece 88 to move into the accommodating groove 81, the extruding rod 87 pushes the buckling frame 86 to slide in the sliding groove 85, the lower inserting rod 82 is lifted up through the inclined sliding groove 85 until the top surface of the lower inserting rod 82 is flush with the opening of the accommodating groove 81 below, the upper inserting rod 83 also returns to the accommodating groove 81 above, as shown in fig. 8, the locking of the upper plate 1 and the lower plate 2 is released, and the surfaces of the upper plate 1 and the lower plate 2 are restored to be flat.
Six casting cavities 3 are symmetrically arranged, as shown in fig. 2, so that the number of single castings is increased, the working efficiency is improved, and the labor intensity is greatly reduced; every foundry goods die cavity 3 all sets up two sand shooting holes 6, improves porous sandblast like this, and resin sand distributes more evenly when can making the sandblast, avoids because of the bending in the foundry goods die cavity 3 is uneven, leads to the sand mo (u) ld to appear leaking point, has promoted the quality of sand mo (u) ld to a certain extent.
The outside of upper plunger 83 has also offered the inclined spout 85, the inclined direction of upper spout 85 is opposite with the inclined direction of lower spout 85, install lock frame 86 in the upper spout 85 too, set up the intercommunicating pore 89 that extends to upper plate 1 lower surface in the upper accepting groove 81, the inside sliding connection of intercommunicating pore 89 has the impact bar 810 that is connected with upper lock frame 86, when upper plate 1 and lower plate 2 are directly by the molten iron adhesion that splashes, the two-section bulldozes the extrusion pole 87 makes lower plunger 82 lift up upper plunger 83 once more, upper plunger 83 promotes outside the intercommunicating pore 89 through the inclined section of spout 85 through upper lock frame 86 and impact bar 810, make impact bar 810 top touch the surface of lower plate 2, give upper plate 1 an ascending power, thereby assist the separation of upper plate 1 and lower plate 2.
The upper chute 85 is divided into a vertical section and an inclined section, so when the lower plunger 82 pushes the upper plunger 83 out of the lower accommodating groove 81 through the first section of the extruding rod 87, the upper buckling frame 86 moves in the vertical section of the upper chute 85, the impact rod 810 is not affected, no useless work is performed between the mechanisms, the extension line of the communication hole 89 is intersected with the extension line of the inclined section of the upper chute 85, when the upper plunger 83 is prevented from moving, the upper buckling frame 86 does not slide in the upper chute 85, and the impact rod 810 and the upper plunger 83 move in the same direction, so that the stability is improved.
The upper surface of the lower plate 2 is provided with a mounting groove 811, a pry bar 812 is arranged in the mounting groove 811, the pry bar 812 is divided into a pressing section, a lever section and a jacking section, the length of the pressing section is larger than that of the jacking section, the impact bar 810 is positioned at the part, farthest from the lever section, above the pressing section, of the impact bar 810, the pry bar 812 is jacked by the impact bar 810, one side of the pry bar 812 is stressed to deflect downwards, and the other side of the pry bar 812 deflects upwards to protrude out of the mounting groove 811 to jack the upper plate 1, so that by utilizing the lever principle, larger force can be released through the conduction of the lever section and the jacking section, and the upper plate 1 and the lower plate 2 are propped open in the deflection process of the pry bar 812, as shown in fig. 9; the pry bar 812 is flush with the opening of the mounting groove 811, so that the surface of the lower plate 2 is flush, and resin sand is prevented from adhering.
Referring to fig. 10 to 11, a sand shooting device 7 is disposed above the upper plate 1 and the lower plate 2, the sand shooting device 7 includes a sand baffle 71, a sand shooting nozzle 72 and a sealing pad 73 corresponding to the sand shooting hole 6 are fixedly connected to the bottom of the sand baffle 71, the sealing pad 73 is annular and surrounds the outer side of the sand shooting nozzle 72, and the sealing pad 73 is made of heat-resistant material, so that leakage of resin sand can be avoided.
Novel tool for iron mold sand-lined four-cylinder crankshaft and production process thereof, comprising the following steps:
s1, core shooting: the casting cavity 3 of the upper plate 1 and the lower plate 2 are downwards placed on a conveying belt, after the casting cavity 3 moves below the sand shooting equipment 7, a sand baffle 71 is downwards pressed and covered on the upper plate 1 or the lower plate 2, a sand shooting nozzle 72 is inserted into a sand shooting hole 6, and resin sand is shot into the casting cavity 3 to form a sand mould;
s2, die assembly: reversing the lower plate 2 to enable the casting cavity 3 to be upward, covering the upper plate 1 on the lower plate 2, pushing the lower inserting rod 82 by the upper inserting rod 83 into the accommodating groove 81 below, and locking the upper plate 1 and the lower plate 2;
s3, pouring: pouring melted molten iron into a pouring gate 5 through a pouring cup, and enabling the molten iron to flow into six casting cavities 3 through pouring gates 4;
s4, cooling and die sinking: after waiting for the temperatures of the upper plate 1 and the lower plate 2 to be lower than two hundred and fifty degrees celsius, the hydraulic device pushes the pressing rod 87 so that the lower insert rod 82 ejects the upper insert rod 83, and then the first attempt is made to remove the upper plate 1 from the lower plate 2;
s5, forcefully die sinking: when the first attempt fails, the pressing rod 87 is further pushed, the impact rod 810 is pushed, the upper plate 1 and the lower plate 2 are pried apart by cooperating with the pry bar 812, and then the upper plate 1 is removed from the lower plate 2 in a second attempt;
s6, demolding: the formed crankshaft is taken out, and the residual resin sand is cleaned.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a novel frock of iron mould sand-lined four jar bent axle, includes upper plate (1) and lower shaped plate (2), foundry goods die cavity (3) and runner (4) have all been seted up to one side surface of upper plate (1) and lower shaped plate (2), and sand shooting hole (6) that extend to in foundry goods die cavity (3) are seted up to the another side of upper plate (1) and lower shaped plate (2), runner (4) intercommunication foundry goods die cavity (3) and runner (5), its characterized in that are seted up to the upper surface of upper plate (1) and are extended to runner (5) in lower shaped plate (2): the upper plate (1) and the lower plate (2) are internally provided with an auxiliary mechanism (8), the auxiliary mechanism (8) comprises a containing groove (81) which is formed in one side opposite to the upper plate (1) and the lower plate (2), the containing groove (81) is wide in inner part and narrow in opening, an upper inserting rod (83) and a lower inserting rod (82) are respectively inserted into the containing groove (81) in a sliding manner, when the opening of the containing groove (81) is upward, the top surfaces of the lower inserting rod (82) and the upper inserting rod (83) are flush with the opening of the containing groove (81) under the condition of no external force, when the opening of the containing groove (81) is downward, the upper inserting rod (83) is pulled out of the containing groove (81) by gravity under the condition of no external force, the lower inserting rod (82) and the upper inserting rod (83) are tightly attached to the inner wall of the opening of the containing groove (81), a through hole (84) which extends to the outer side of the lower plate (2) is formed in the inner wall of the containing groove (81), a surface of the lower inserting rod (82) is provided with a through hole (86) which extends to the outer side of the lower plate (82), a pressing frame (84) is provided with a through hole (85) which extends to the outer side of the extruding frame (84) in a sliding manner, the extruding frame (85) is completely buckled, a spring piece (88) is fixedly connected between the extrusion rod (87) and the inner wall of the through hole (84).
2. The novel tool for the iron mold sand-lined four-cylinder crankshaft, disclosed in claim 1, is characterized in that: six casting mold cavities (3) are arranged, and the six casting mold cavities (3) are symmetrically arranged.
3. The novel tool for the iron mold sand-lined four-cylinder crankshaft, disclosed in claim 1, is characterized in that: two sand shooting holes (6) are formed in each casting cavity (3).
4. The novel tool for the iron mold sand-lined four-cylinder crankshaft, disclosed in claim 1, is characterized in that: the outside of going up inserted bar (83) has also seted up inclined spout (85), and the inclination of top spout (85) and below spout (85) is opposite, also installs buckling frame (86) in top spout (85), top set up in holding tank (81) and extend to intercommunicating pore (89) of upper plate (1) lower surface, the inside sliding connection of intercommunicating pore (89) has impact bar (810) of being connected with top buckling frame (86).
5. The novel tool for the iron mold sand-lined four-cylinder crankshaft, disclosed by claim 4, is characterized in that: the chute (85) above is divided into a vertical section and an inclined section.
6. The novel tool for the iron mold sand-lined four-cylinder crankshaft, disclosed by claim 5, is characterized in that: an extension line of the communication hole (89) is intersected with an extension line of the inclined section of the upper chute (85).
7. The novel tool for the iron mold sand-lined four-cylinder crankshaft, disclosed by claim 4, is characterized in that: the upper surface of lower shaped plate (2) has seted up mounting groove (811), the inside of mounting groove (811) is provided with pinch bar (812), pinch bar (812) divide into pressure section, lever section and top sled section three parts, the length of pressure section is greater than top sled section, impact bar (810) are located the top of pressure section and are apart from the furthest part of lever section distance.
8. The novel tool for the iron mold sand-lined four-cylinder crankshaft, disclosed in claim 7, is characterized in that: the pry bar (812) is flush with the opening of the mounting groove (811).
9. The novel tool for the iron mold sand-lined four-cylinder crankshaft, disclosed in claim 7, is characterized in that: the sand shooting device is characterized in that sand shooting equipment (7) is arranged above the upper plate (1) and the lower plate (2), the sand shooting equipment (7) comprises a sand baffle (71), a sand shooting nozzle (72) and a sealing gasket (73) corresponding to a sand shooting hole (6) are fixedly connected to the bottom of the sand baffle (71), and the sealing gasket (73) is annular and surrounds the outer side of the sand shooting nozzle (72).
10. The production process of the novel iron mold sand-lined four-cylinder crankshaft tool as set forth in claim 9, wherein the steps include:
s1, core shooting: the casting cavity (3) of the upper plate (1) and the lower plate (2) are downwards placed on a conveying belt, after the casting cavity moves below sand shooting equipment (7), a sand baffle (71) is downwards pressed and covered on the upper plate (1) or the lower plate (2), and a sand shooting nozzle (72) is inserted into a sand shooting hole (6) to shoot resin sand into the casting cavity (3) to form a sand mould;
s2, die assembly: reversing the lower plate (2) to enable the casting cavity (3) to be upward, covering the upper plate (1) on the lower plate (2), pushing the lower insert rod (82) by the upper insert rod (83) into the accommodating groove (81) below, and locking the upper plate (1) and the lower plate (2);
s3, pouring: pouring melted molten iron into a pouring gate (5) through a pouring cup, and enabling the molten iron to flow into six casting cavities (3) through pouring gates (4);
s4, cooling and die sinking: after waiting for the temperature of the upper plate (1) and the lower plate (2) to be lower than two hundred and fifty degrees celsius, the hydraulic equipment pushes the extrusion rod (87) to push the lower plunger rod (82) out of the upper plunger rod (83), and then the upper plate (1) is tried to be removed from the lower plate (2) for the first time;
s5, forcefully die sinking: when the first attempt fails, the extruding rod (87) is further pushed, the impact rod (810) is pushed, the upper plate (1) and the lower plate (2) are pried by matching with the prying rod (812), and then the upper plate (1) is removed from the lower plate (2) in a second attempt;
s6, demolding: the formed crankshaft is taken out, and the residual resin sand is cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211249242.5A CN116079003B (en) | 2022-10-12 | 2022-10-12 | Novel tool for iron mold sand-coated four-cylinder crankshaft and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211249242.5A CN116079003B (en) | 2022-10-12 | 2022-10-12 | Novel tool for iron mold sand-coated four-cylinder crankshaft and production process thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN116079003A CN116079003A (en) | 2023-05-09 |
| CN116079003B true CN116079003B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211249242.5A Active CN116079003B (en) | 2022-10-12 | 2022-10-12 | Novel tool for iron mold sand-coated four-cylinder crankshaft and production process thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203664627U (en) * | 2014-01-03 | 2014-06-25 | 宁波埃利特模具制造有限公司 | Automobile transmission shell aluminum alloy die-casting die |
| CN111036840A (en) * | 2019-12-26 | 2020-04-21 | 张永 | Precoated sand mold for casting |
| CN112247104A (en) * | 2020-09-18 | 2021-01-22 | 曹光辉 | Aluminum alloy die-casting die |
| CN213968894U (en) * | 2020-12-08 | 2021-08-17 | 太仓格瑞斯金属制品有限公司 | Casting mould suitable for iron core aluminum casting |
| CN214023412U (en) * | 2020-12-14 | 2021-08-24 | 昆山佳合朔精密电子有限公司 | Radiator die-casting die for headlamp |
-
2022
- 2022-10-12 CN CN202211249242.5A patent/CN116079003B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203664627U (en) * | 2014-01-03 | 2014-06-25 | 宁波埃利特模具制造有限公司 | Automobile transmission shell aluminum alloy die-casting die |
| CN111036840A (en) * | 2019-12-26 | 2020-04-21 | 张永 | Precoated sand mold for casting |
| CN112247104A (en) * | 2020-09-18 | 2021-01-22 | 曹光辉 | Aluminum alloy die-casting die |
| CN213968894U (en) * | 2020-12-08 | 2021-08-17 | 太仓格瑞斯金属制品有限公司 | Casting mould suitable for iron core aluminum casting |
| CN214023412U (en) * | 2020-12-14 | 2021-08-24 | 昆山佳合朔精密电子有限公司 | Radiator die-casting die for headlamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116079003A (en) | 2023-05-09 |
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