CN212494965U - Lower jig forming mechanism for bell and spigot spiral steel pipe - Google Patents
Lower jig forming mechanism for bell and spigot spiral steel pipe Download PDFInfo
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- CN212494965U CN212494965U CN202020646143.0U CN202020646143U CN212494965U CN 212494965 U CN212494965 U CN 212494965U CN 202020646143 U CN202020646143 U CN 202020646143U CN 212494965 U CN212494965 U CN 212494965U
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Abstract
The utility model belongs to the technical field of steel pipe processing equipment, especially for lower tool forming mechanism for bell and spigot spiral steel pipe, including lower mould and upper mould, the lower mould with the upper mould is the solid of revolution, the lower mould includes mold core and integrated into one piece at its outer wall's shaping flange, the spacing portion of lower mould, lower mould first profile, lower mould second profile, lower mould third profile, lower mould fourth profile and lower mould fifth profile have been seted up on the mold core from left to right in proper order; the hydraulic forming equipment controls the lower die and the upper die, and carries out compression joint forming on the steel pipe, when a cold die bellmouth is adopted for one-step forming, an independent sealing clamping structure body is cold-pressed and cold-welded on the bellmouth by utilizing strong pressure to form a sealing bayonet structure, so that the sealing fixation is solved, the sealing use performance reaches the standard, the sealing is enhanced when bearing pressure, the static sealing capability is kept, the original small-angle casting surface is changed into a 45-degree cold-pressing forming surface, and the forming control is convenient.
Description
Technical Field
The utility model belongs to the technical field of steel pipe processing equipment, concretely relates to socket spiral steel pipe is with tool forming mechanism down.
Background
The T-shaped bell and spigot sealing structure of the cast iron pipe is used for a long time, the service performance and the reliability are verified, and the national standard is formed. The same type structure of the spiral pipe is not standard, and in order to enable the sealing performance and the service life of the T-shaped bell and spigot of the spiral pipe to be consistent with those of the cast iron pipe, the technical standard of conversion of the T-shaped bell and spigot sealing of the cast iron pipe is a feasible scheme.
The sealing clamp position of the original cast iron pipe cannot precisely realize the size structure in cold molding, rolling and other cold or low-temperature molding methods, and is a main cause that the sealing level of a cold-press molding bell and spigot does not reach the standard, so that the precision of the produced spiral steel pipe cannot meet the use requirement in the assembling process.
Therefore, the person skilled in the art provides a lower jig forming mechanism for a socket spiral steel pipe to solve the problems mentioned in the above background art.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a socket spiral steel pipe is with tool forming mechanism down has the sealed better characteristics of effect of the steel pipe of production.
In order to achieve the above object, the utility model provides a following technical scheme: socket spiral steel pipe is with tool forming mechanism down, including lower mould and last mould, the lower mould with it is the solid of revolution to go up the mould, the lower mould includes mold core and integrated into one piece at its outer wall's shaping flange, the spacing portion of lower mould, the first profile of lower mould, lower mould second profile, lower mould third profile, lower mould fourth profile and lower mould fifth profile have been seted up in proper order from left to right on the mold core, the shaping flange is located the spacing portion of lower mould with between the first profile of lower mould, go up the mould and include the spacing flange of template and integrated into one piece at its inner wall left end, the spacing portion of last mould, last mould first profile, last mould second profile, last mould third profile, last mould fourth profile and last mould fifth profile have been seted up in proper order from left to right on the template.
Preferably, the length of the upper die limiting part is 50 mm, and the length of the forming flange is 40 mm.
Preferably, the length of the first profile of the upper die is 9.08 mm.
Preferably, the horizontal inclination angles of the fourth lower die profile and the fourth upper die profile are both 24.5 degrees, and the lengths of the fourth lower die profile and the fourth upper die profile are both 45 millimeters.
Preferably, the horizontal inclination angle of the second profile of the lower die is 10.56 degrees, and the length of the second profile of the lower die is 11.85 millimeters.
Preferably, the horizontal inclination angle of the second profile of the upper die is 11.49 degrees, and the length is 52 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
the lower die and the upper die are both connected with hydraulic forming equipment, in an initial state, the gap between the lower die and the upper die is larger, one end of a steel pipe is placed between the lower die and the upper die, then the hydraulic forming equipment controls the lower die and the upper die to gradually reduce the gap between the lower die and the upper die, the steel pipe is subjected to compression forming, after the compression forming is completed, the hydraulic forming equipment controls the lower die and the upper die to separate, the steel pipe subjected to compression forming is taken out, when a cold die bellmouth is adopted for one-step forming, an independent sealing clamping structure body is subjected to cold welding on the bellmouth by using strong pressure to form a sealing bayonet structure, the sealing fixation is solved, the sealing performance reaches the standard, the effect that the sealing capacity is stronger when the sealing is under pressure is higher, the static sealing capacity is kept, the original 3-degree small-angle casting surface is changed into a 45-degree cold-pressing forming surface, the molding control is convenient.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of an upper mold in the present invention;
fig. 3 is a schematic view of a lower mold structure in the present invention.
In the figure: 1. a lower die; 101. a lower die limiting part; 102. a lower die first profile; 103. a second profile of the lower die; 104. a third profile of the lower die; 105. a fourth molded surface of the lower die; 106. a fifth molded surface of the lower die; 11. a mold core; 12. forming a flange; 2. an upper die; 201. an upper die limiting part; 202. an upper die first profile; 203. an upper die second profile; 204. a third molded surface of the upper die; 205. a fourth molded surface of the upper die; 206. a fifth molded surface of the upper die; 21. a template; 22. and a limiting flange.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: lower tool forming mechanism for bell and spigot spiral steel pipe, including lower mould 1 and last mould 2, lower mould 1 and last mould 2 are the solid of revolution, lower mould 1 includes mold core 11 and integrated into one piece at its outer wall's shaping flange 12, lower mould spacing portion 101, lower mould first profile 102, lower mould second profile 103, lower mould third profile 104, lower mould fourth profile 105 and lower mould fifth profile 106 have been seted up in proper order from left to right on mold core 11, shaping flange 12 is located between lower mould spacing portion 101 and lower mould first profile 102, it includes template 21 and integrated into one piece at its inner wall left end's spacing flange 22 to go up mould 2, last mould spacing portion 201, go up mould first profile 202, go up mould second profile 203, go up mould third profile 204, go up mould fourth profile 205 and go up mould fifth profile 206 have been seted up in proper order from left to right on template 21.
In this embodiment: the lower die 1 and the upper die 2 are both connected with a hydraulic forming device, in an initial state, a gap between the lower die 1 and the upper die 2 is larger, one end of a steel pipe is placed between the lower die 1 and the upper die 2, then the hydraulic forming device controls the lower die 1 and the upper die 2 to gradually reduce the gap between the lower die 1 and the upper die 2, a limit flange 22 is inserted into a lower die limit part 101, a forming flange 12 is inserted into an upper die limit part 201, an upper die first profile 202 is inserted into a lower die first profile 102, a lower die second profile 103 corresponds to an upper die second profile 203, a lower die third profile 104 corresponds to an upper die third profile 204, a lower die fourth profile 105 corresponds to an upper die fourth profile 205, a lower die fifth profile 106 corresponds to an upper die fifth profile 206 and performs compression joint forming on the steel pipe, after the compression joint is completed, the hydraulic forming device controls the separation of the lower die 1 and the upper die 2 to take out the, when the cold die bellmouth is formed at one time, the independent sealing clamping structure body is cold-pressed and cold-welded on the bellmouth by utilizing strong pressure to form a sealing bayonet structure, thereby solving the problem of sealing fixation and enabling the sealing use performance to reach the standard.
In fig. 1, 2 and 3: the die comprises a lower die 1 and an upper die 2, wherein the lower die 1 and the upper die 2 are both rotary bodies, the lower die 1 comprises a die core 11 and a forming flange 12 integrally formed on the outer wall of the die core 11, the die core 11 is sequentially provided with a lower die limiting part 101, a lower die first molded surface 102, a lower die second molded surface 103, a lower die third molded surface 104, a lower die fourth molded surface 105 and a lower die fifth molded surface 106 from left to right, the forming flange 12 is positioned between the lower die limiting part 101 and the lower die first molded surface 102, the upper die 2 comprises a template 21 and a limiting flange 22 integrally formed at the left end of the inner wall of the upper die 2, the template 21 is sequentially provided with an upper die limiting part 201, an upper die first molded surface 202, an upper die second molded surface 203, an upper die third molded surface 204, an upper die fourth molded surface 205 and an upper die fifth molded surface 206 from left to right, the lower die 1 and the upper die 2 are, place the one end of steel pipe between lower mould 1 and last mould 2, then hydraulic forming equipment control lower mould 1 and last mould 2 for the clearance between lower mould 1 and last mould 2 reduces gradually, and carry out the crimping shaping to the steel pipe, after the crimping is accomplished, hydraulic forming equipment control lower mould 1 and last mould 2 separation, take out the steel pipe that the crimping was accomplished, when adopting cold mould bellmouth one shot forming, utilize powerful pressure to cold-pressure cold welding the bellmouth with solitary sealed screens structure on, form sealed bayonet structure, sealed fixed has been solved promptly, make sealed performance up to standard again.
In fig. 2 and 3: the length of the upper die limiting part 201 is 50 mm, the length of the forming flange 12 is 40 mm, the forming flange 12 is inserted into the upper die limiting part 201 to be subjected to compression molding, the horizontal inclination angles of the lower die fourth molded surface 105 and the upper die fourth molded surface 205 are both 24.5 degrees and the lengths are both 45 mm, and the lower die fourth molded surface 105 corresponds to the upper die fourth molded surface 205 to be subjected to compression molding.
In fig. 2: the length of the upper mold first molded surface 202 is 9.08 mm, the upper mold first molded surface 202 is inserted into the lower mold first molded surface 102 for compression molding, the horizontal inclination angle of the upper mold second molded surface 203 is 11.49 degrees, the length is 52 mm, and the lower mold second molded surface 103 corresponds to the upper mold second molded surface 203 for compression molding.
In fig. 3: the horizontal inclination angle of the lower die second molded surface 103 is 10.56 degrees, the length is 11.85 mm, and the lower die second molded surface 103 corresponds to the upper die second molded surface 203 for compression molding.
The utility model discloses a theory of operation and use flow: the lower die 1 and the upper die 2 are both connected with a hydraulic forming device, in an initial state, a gap between the lower die 1 and the upper die 2 is larger, one end of a steel pipe is placed between the lower die 1 and the upper die 2, then the hydraulic forming device controls the lower die 1 and the upper die 2 to gradually reduce the gap between the lower die 1 and the upper die 2, a limit flange 22 is inserted into a lower die limit part 101, a forming flange 12 is inserted into an upper die limit part 201, an upper die first profile 202 is inserted into a lower die first profile 102, a lower die second profile 103 corresponds to an upper die second profile 203, a lower die third profile 104 corresponds to an upper die third profile 204, a lower die fourth profile 105 corresponds to an upper die fourth profile 205, a lower die fifth profile 106 corresponds to an upper die fifth profile 206 and performs compression joint forming on the steel pipe, after the compression joint is completed, the hydraulic forming device controls the separation of the lower die 1 and the upper die 2 to take out the, when the cold die bellmouth is formed at one time, the independent sealing clamping structure body is cold-pressed and cold-welded on the bellmouth by utilizing strong pressure to form a sealing bayonet structure, thereby solving the problem of sealing fixation and enabling the sealing use performance to reach the standard.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. Socket spiral steel pipe is with tool forming mechanism down, including lower mould (1) and last mould (2), lower mould (1) with it is the solid of revolution to go up mould (2), its characterized in that: lower mould (1) includes mold core (11) and integrated into one piece at shaping flange (12) of its outer wall, spacing portion (101) of lower mould, first profile (102) of lower mould, lower mould second profile (103), lower mould third profile (104), lower mould fourth profile (105) and lower mould fifth profile (106) have been seted up in proper order from left to right on mold core (11), shaping flange (12) are located spacing portion (101) of lower mould with between lower mould first profile (102), it includes template (21) and integrated into one piece at spacing flange (22) of its inner wall left end to go up mould (2), mould spacing portion (201), last mould first profile (202), last mould second profile (203), last mould third profile (204), last mould fourth profile (205) and last mould fifth profile (206) have been seted up in proper order by left to right on template (21).
2. The lower jig forming mechanism for the bell and spigot spiral steel pipe according to claim 1, wherein: the length of the upper die limiting part (201) is 50 mm, and the length of the forming flange (12) is 40 mm.
3. The lower jig forming mechanism for the bell and spigot spiral steel pipe according to claim 1, wherein: the upper die first profile (202) has a length of 9.08 mm.
4. The lower jig forming mechanism for the bell and spigot spiral steel pipe according to claim 1, wherein: the horizontal inclination angles of the lower die fourth molded surface (105) and the upper die fourth molded surface (205) are both 24.5 degrees, and the lengths of the lower die fourth molded surface and the upper die fourth molded surface are both 45 millimeters.
5. The lower jig forming mechanism for the bell and spigot spiral steel pipe according to claim 1, wherein: the horizontal inclination angle of the lower die second molded surface (103) is 10.56 degrees, and the length is 11.85 millimeters.
6. The lower jig forming mechanism for the bell and spigot spiral steel pipe according to claim 1, wherein: the horizontal inclination angle of the upper die second molded surface (203) is 11.49 degrees, and the length is 52 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020646143.0U CN212494965U (en) | 2020-04-23 | 2020-04-23 | Lower jig forming mechanism for bell and spigot spiral steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020646143.0U CN212494965U (en) | 2020-04-23 | 2020-04-23 | Lower jig forming mechanism for bell and spigot spiral steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212494965U true CN212494965U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020646143.0U Active CN212494965U (en) | 2020-04-23 | 2020-04-23 | Lower jig forming mechanism for bell and spigot spiral steel pipe |
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| Country | Link |
|---|---|
| CN (1) | CN212494965U (en) |
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- 2020-04-23 CN CN202020646143.0U patent/CN212494965U/en active Active
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