CN212884852U - Cold core box with downward large disk for producing bellmouth sand core for nodular cast iron pipe - Google Patents
Cold core box with downward large disk for producing bellmouth sand core for nodular cast iron pipe Download PDFInfo
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- CN212884852U CN212884852U CN202020965784.2U CN202020965784U CN212884852U CN 212884852 U CN212884852 U CN 212884852U CN 202020965784 U CN202020965784 U CN 202020965784U CN 212884852 U CN212884852 U CN 212884852U
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Abstract
The utility model relates to a big dish down formula is used for producing cold core box of bellmouth psammitolite for nodular cast iron pipe belongs to cold core box mould field. The utility model discloses a base, mold core and external mold are all installed on the base and are formed the die cavity between mold core and the external mold, and its structural feature lies in: the cold core box comprises an outer die and a cold core box, wherein the outer die is provided with sand shooting holes, the sand shooting holes are communicated with a die cavity, and the cold core box further comprises a connecting mechanism which is arranged on the outer wall of the outer die.
Description
Technical Field
The utility model relates to a big dish down formula is used for producing cold core box of bellmouth psammitolite for nodular cast iron pipe belongs to cold core box mould field.
Background
When the nodular cast iron pipe fitting is machined, a female end of a pipe die needs to be plugged by a sand core to prevent molten iron from flowing out, molten iron is injected into a socket end of the pipe fitting, the quality of the sand core directly influences the quality of the pipe fitting, most manufacturers cast the sand core through a die cavity formed between the die core and an outer die when producing the sand core, the outer die consists of two parts, one end of the two parts of outer dies is hinged through a hinge shaft, the other end of the two parts of outer dies is locked during working, the working efficiency is low and core taking is slow when the sand core is machined through the structure in the mode, meanwhile, the compactness of the sand core is difficult to guarantee due to the unreasonable design of an exhaust structure, the sand core needs to be written on the sand core manually, and the labor cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design's big dish down formula is used for producing the cold core box of bellmouth psammitolite for nodular cast iron pipe.
The utility model provides a technical scheme that above-mentioned problem adopted is: this big dish down formula is used for producing cold core box of bellmouth psammitolite for nodular cast iron pipe, including base, mold core and external mold are all installed on the base, and form the die cavity between mold core and the external mold, and its structural feature lies in: the cold core box comprises an outer die and a cold core box, wherein the outer die is provided with sand shooting holes, the sand shooting holes are communicated with a die cavity, and the cold core box further comprises a connecting mechanism which is arranged on the outer wall of the outer die.
Furthermore, the connecting mechanism comprises a connecting seat, a connecting arm, a connecting plate, a fixed shaft and a clamping plate, the connecting seat is installed on the outer wall of the outer die, the connecting arm is installed on the connecting seat, the connecting plate is installed on the connecting arm, the fixed shaft is installed on the connecting plate, and the clamping plate is installed on the fixed shaft.
Furthermore, the cold core box also comprises guide rails, the number of the outer dies is two, the two outer dies are both installed on the base through the guide rails, and the two outer dies are symmetrically arranged.
Furthermore, the cold core box also comprises an insert ring, the insert ring is installed on the inner wall of the outer die, and a gap for exhausting air is formed between the insert ring and the inner wall of the outer die.
Further, the cold box also comprises a vent plug, wherein the vent plug is arranged on the mold core and is positioned at the lower end of the mold cavity.
Furthermore, the cold box also comprises a character code loose piece which is arranged on the inner wall of the outer die and is positioned at the upper part of the die cavity.
Further, the cross-sectional area of the upper end of the mold cavity is smaller than the cross-sectional area of the lower end.
Furthermore, the cold core box further comprises a top core rod and a top core plate, wherein one end of the top core rod is located in the die cavity, and the other end of the top core rod is connected with the top core plate.
Furthermore, a sand shooting nozzle is arranged above the sand shooting hole, and the sand shooting hole is matched with the sand shooting nozzle.
Furthermore, the sand shooting nozzle comprises a sand shooting nozzle body, a sand shooting nozzle head and a sand shooting nozzle seat, the sand shooting nozzle head and the sand shooting nozzle seat are respectively fixed at two ends of the sand shooting nozzle body, the diameter of the sand shooting nozzle head is larger than that of the sand shooting nozzle body, and the sand shooting hole and the sand shooting nozzle head are both arranged in a conical structure.
Compared with the prior art, the utility model has the advantages of it is following: when processing the psammitolite through this cold core box, stimulate the external mold to both sides along the guide rail through two coupling mechanism behind the psammitolite shaping, can open the external mold, ejecting the psammitolite through ejector pin pole and ejector core plate, the coring speed has been improved, at the during operation, can make the die cavity reach better sealed effect through two external molds of relative setting, simultaneously through the clearance and the plug of ventilating that set up, can make exhaust design more reasonable, can be complete with the gas outgoing in the psammitolite, make the degree of compaction of psammitolite promote, treat through the word loose piece of installation and can avoid artifical the writing after the psammitolite shaping, and the work efficiency is improved.
Drawings
Fig. 1 is a schematic front view structure diagram of a cold box according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a left side view structure diagram of the cold box of the embodiment of the present invention.
Fig. 4 is an enlarged schematic view of a portion B in fig. 2.
Fig. 5 is a schematic top view of the cold box according to the embodiment of the present invention.
Description of reference numerals: the sand shooting device comprises a base 1, a mold core 2, an outer mold 3, a mold cavity 4, an insert ring 5, a vent plug 6, a character code movable block 7, a guide rail 8, a connecting mechanism 9, a connecting seat 10, a connecting arm 11, a connecting plate 12, a fixed shaft 13, a clamping plate 14, a core ejecting rod 15, a core ejecting plate 16, a sand shooting hole 17, a sand shooting nozzle 18, a sand shooting nozzle body 19, a sand shooting nozzle head 20 and a sand shooting nozzle seat 21.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1 to 5, it should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essence, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, in the present specification, if there are terms such as "upper", "lower", "left", "right", "middle" and "one", they are used for clarity of description only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are considered as the scope of the present invention without substantial changes in the technical content.
The cold core box with the downward large disk for producing the bellmouth sand core for the nodular cast iron pipe comprises a base 1, a mold core 2, an outer mold 3, an insert ring 5, a vent plug 6, a character code loose piece 7, a guide rail 8, a connecting mechanism 9, a core ejecting rod 15 and a core ejecting plate 16, wherein the mold core 2 and the outer mold 3 are both installed on the base 1, a mold cavity 4, namely the bellmouth sand core, is formed between the mold core 2 and the outer mold 3, and the section area of the upper end of the mold cavity 4 is smaller than that of the lower end of the mold cavity.
The outer die 3 in the embodiment is provided with a sand shooting hole 17, the sand shooting hole 17 is communicated with the die cavity 4, and the cold core box further comprises a connecting mechanism 9 arranged on the outer wall of the outer die 3; the connecting mechanism 9 comprises a connecting seat 10, a connecting arm 11, a connecting plate 12, a fixed shaft 13 and a clamping plate 14, wherein the connecting seat 10 is installed on the outer wall of the outer die 3, the connecting arm 11 is installed on the connecting seat 10, the connecting plate 12 is installed on the connecting arm 11, the fixed shaft 13 is installed on the connecting plate 12, and the clamping plate 14 is installed on the fixed shaft 13.
The cold core box in the embodiment further comprises two outer dies 3, wherein the two outer dies 3 are mounted on the base 1 through guide rails 8, the two outer dies 3 are symmetrically arranged, the insert ring 5 is mounted on the inner wall of each outer die 3, a gap for exhausting air exists between the insert ring 5 and the inner wall of each outer die 3, the vent plug 6 is mounted on the die core 2 and located at the lower end of the die cavity 4, the code movable block 7 is mounted on the inner wall of each outer die 3 and located at the upper part of the die cavity 4, one end of the core ejecting rod 15 is located in the die cavity 4, and the other end of the core ejecting rod 15 is connected with the core ejecting plate 16.
A sand shooting nozzle 18 is arranged above the sand shooting hole 17 in the embodiment, and the sand shooting hole 17 is matched with the sand shooting nozzle 18; the sand shooting nozzle 18 comprises a sand shooting nozzle body 19, a sand shooting nozzle head 20 and a sand shooting nozzle seat 21, the sand shooting nozzle head 20 and the sand shooting nozzle seat 21 are respectively fixed at two ends of the sand shooting nozzle body 19, the diameter of the sand shooting nozzle head 20 is larger than that of the sand shooting nozzle body 19, and the sand shooting hole 17 and the sand shooting nozzle head 20 are arranged in a conical structure.
Specifically speaking, when processing the psammitolite through this cold core box, through two coupling mechanism 9 after the psammitolite shaping to both sides pulling external mold 3 along guide rail 8, can open external mold 3, ejecting the psammitolite through top core bar 15 and top core plate 16, the coring speed has been improved, at the during operation, two external molds 3 through relative setting can make die cavity 4 reach better sealed effect, simultaneously through clearance and the breather plug 6 that sets up, can make exhaust design more reasonable, can be complete with the gas outgoing in the psammitolite, make the degree of compaction of psammitolite promote, can avoid artifical the writing after treating the psammitolite shaping through the word loose piece 7 of installation.
The number of the mold cores 2 in this embodiment may be determined according to the diameter of the sand core, and the number of the mold cores 2 is preferably 1 to 3.
The air exhaust mode is reasonable in design, and the air exhaust is combined with the air exhaust of the vent plug, so that the sand does not leak due to air leakage, and the sand core is full and free of defects.
The design of the sand shooting and air blowing opening is reasonable, so that the sand core is compact and high in strength; large blowing flow area, no dead angle, good curing effect, less triethylamine and resin consumption and high production efficiency.
The manufacturing process is excellent and mature. The easy-to-wear and gas-accumulating part of the cavity adopts an embedded structure; each movable guide rail is made of low-carbon alloy steel, and is carburized and quenched, so that the surface is hard and the core is tough, the movable guide rails are not easy to wear, and the service life is long.
The sand is injected by adopting the conical-surface sand injection nozzle, so that the sand core has no waste stem, the conical surface is well sealed, and the service life of the injection nozzle is long.
The outer die of the die cavity is provided with a movable block driven by an air cylinder, so that the requirement of lettering on the end face of the bellmouth of the sand core is met.
DN 80-2600 bellmouth sand core box designed and manufactured by the company is specially used for ductile iron pipe manufacturers. The bellmouth sand core produced by the core box is one of the key elements for determining the size and the surface quality of the bellmouth of the nodular cast iron pipe. The sand core has the advantages of high full and compact strength, smooth surface without defects, and accurate and stable size, and is the main quality index of the sand core.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a big dish down formula is used for producing cold core box of bellmouth psammitolite for nodular cast iron pipe, includes base (1), mold core (2) and external mold (3) all install on base (1) and form die cavity (4), its characterized in that between mold core (2) and external mold (3): the cold core box is characterized in that the outer die (3) is provided with sand shooting holes (17), the sand shooting holes (17) are communicated with the die cavity (4), the cold core box further comprises a connecting mechanism (9), and the connecting mechanism (9) is installed on the outer wall of the outer die (3).
2. The cold box of claim 1, of the large-plate-down type for producing a bell-mouth sand core for ductile iron pipes, wherein: the connecting mechanism (9) comprises a connecting seat (10), a connecting arm (11), a connecting plate (12), a fixed shaft (13) and a clamping plate (14), the connecting seat (10) is installed on the outer wall of the outer die (3), the connecting arm (11) is installed on the connecting seat (10), the connecting plate (12) is installed on the connecting arm (11), the fixed shaft (13) is installed on the connecting plate (12), and the clamping plate (14) is installed on the fixed shaft (13).
3. The cold box of claim 1, of the large-plate-down type for producing a bell-mouth sand core for ductile iron pipes, wherein: the cold core box further comprises guide rails (8), the number of the outer dies (3) is two, the two outer dies (3) are mounted on the base (1) through the guide rails (8), and the two outer dies (3) are symmetrically arranged.
4. The cold box of claim 1, of the large-plate-down type for producing a bell-mouth sand core for ductile iron pipes, wherein: the cold core box also comprises an insert ring (5), the insert ring (5) is installed on the inner wall of the outer die (3), and a gap for exhausting air exists between the insert ring (5) and the inner wall of the outer die (3).
5. The cold box of claim 1, of the large-plate-down type for producing a bell-mouth sand core for ductile iron pipes, wherein: the cold core box also comprises a vent plug (6), wherein the vent plug (6) is arranged on the mold core (2), and the vent plug (6) is positioned at the lower end of the mold cavity (4).
6. The cold box of claim 1, of the large-plate-down type for producing a bell-mouth sand core for ductile iron pipes, wherein: the cold box also comprises a character code loose piece (7), wherein the character code loose piece (7) is installed on the inner wall of the outer die (3), and the character code loose piece (7) is positioned on the upper part of the die cavity (4).
7. The cold box of claim 1, of the large-plate-down type for producing a bell-mouth sand core for ductile iron pipes, wherein: the cross-sectional area of the upper end of the die cavity (4) is smaller than that of the lower end.
8. The cold box of claim 1, of the large-plate-down type for producing a bell-mouth sand core for ductile iron pipes, wherein: the cold core box further comprises a top core rod (15) and a top core plate (16), one end of the top core rod (15) is located in the die cavity (4), and the other end of the top core rod (15) is connected with the top core plate (16).
9. The cold box of claim 1, of the large-plate-down type for producing a bell-mouth sand core for ductile iron pipes, wherein: a sand shooting nozzle (18) is arranged above the sand shooting hole (17), and the sand shooting hole (17) is matched with the sand shooting nozzle (18).
10. The cold box, large-plate-down, for producing a bell-mouth sand core for ductile iron pipes according to claim 9, wherein: the sand shooting nozzle (18) comprises a sand shooting nozzle body (19), a sand shooting nozzle head (20) and a sand shooting nozzle seat (21), the sand shooting nozzle head (20) and the sand shooting nozzle seat (21) are respectively fixed at two ends of the sand shooting nozzle body (19), the diameter of the sand shooting nozzle head (20) is larger than that of the sand shooting nozzle body (19), and the sand shooting hole (17) and the sand shooting nozzle head (20) are both arranged in a conical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020965784.2U CN212884852U (en) | 2020-06-01 | 2020-06-01 | Cold core box with downward large disk for producing bellmouth sand core for nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020965784.2U CN212884852U (en) | 2020-06-01 | 2020-06-01 | Cold core box with downward large disk for producing bellmouth sand core for nodular cast iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212884852U true CN212884852U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020965784.2U Active CN212884852U (en) | 2020-06-01 | 2020-06-01 | Cold core box with downward large disk for producing bellmouth sand core for nodular cast iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212884852U (en) |
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2020
- 2020-06-01 CN CN202020965784.2U patent/CN212884852U/en active Active
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