CN214813601U - Three-roller retained mandrel for continuous tube mill - Google Patents
Three-roller retained mandrel for continuous tube mill Download PDFInfo
- Publication number
- CN214813601U CN214813601U CN202120474721.1U CN202120474721U CN214813601U CN 214813601 U CN214813601 U CN 214813601U CN 202120474721 U CN202120474721 U CN 202120474721U CN 214813601 U CN214813601 U CN 214813601U
- Authority
- CN
- China
- Prior art keywords
- head
- core rod
- restraint
- mandrel
- rod body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model discloses a three-roller restraint core rod for a continuous tube rolling mill, which comprises a restraint core rod head, wherein the rear end of the restraint core rod head is provided with a restraint core rod body, the restraint core rod head comprises an expansion head, the rear end of the expansion head is provided with a fixing frame, the rear end of the fixing frame is integrally formed with a connecting rod, the restraint core rod body comprises a rod body, the center of the rod body is provided with an air vent, the connecting rod is sleeved on the inner surface of the air vent, the outer side end of the inner wall of the rod body is provided with a spiral groove, the restraint core rod is composed of the restraint core rod head and the restraint core rod body, when in use, the restraint core rod body integrally extends into the inner part of a billet tube, the billet tube is processed by utilizing three external compression rollers, when the restraint core rod head is worn after being used for a period, a nut is removed, the expansion head is convenient to replace, the existing restraint core rod body effectively solves the problem that the whole body can only be replaced when the head of the existing restraint core rod body is worn seriously, so that the rear end is worn to a lower degree, the use cost is reduced.
Description
Technical Field
The utility model relates to a continuous pipe mill field, specific three-roller restraint plug for continuous pipe mill that says so.
Background
A retained mandrel continuous rolling mill is an important device in seamless steel tube production, a perforated blank tube is expanded to assist external rolling to process the blank tube into a finished product, the head of the retained mandrel can only be integrally replaced when being seriously worn, so that a rod body with lower rear end wear degree is wasted, the use cost is improved, and in view of the problems, the three-roller retained mandrel for the continuous rolling mill is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art, the utility model aims at providing a three-roller restraint plug for continuous tube mill, effectual head that has solved current restraint plug can only the whole change lead to the lower extravagant problem of the body of rod of rear end degree of wear when wearing and tearing are serious, reduce use cost.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a three-roller restraint plug for continuous tube mill, includes restraint core rod head, and the rear end of restraint core rod head is equipped with the restraint mandrel body, restraint core rod head is including extending the head, the rear end of extending the head is equipped with the mount, the rear end integrated into one piece of mount has the connecting rod, restraint mandrel body includes the body of rod, the air vent has been seted up in the center department of the body of rod, the connecting rod cup joints the internal surface at the air vent, the helicla flute has been seted up to the inner wall outside end of the body of rod.
Furthermore, the front end of the expansion head is integrally formed with a sliding body, and the center of the sliding body is provided with an air hole.
Furthermore, the rear surface of the air hole is provided with a groove, and the fixing frame is integrally formed on the inner surface of the groove.
Furthermore, the rear end welding of connecting rod has the screw rod, the surface spiro union of screw rod has the nut, the front end integrated into one piece of nut has the spacer.
Furthermore, the front end of the center of the rod body is integrally formed with a meshing head, the rear surface of the extension head is provided with a meshing groove, the meshing groove is sleeved on the outer surface of the meshing head, the front surface of the meshing head is provided with a slot, and the slot is sleeved on the outer surface of the fixing frame.
Further, the rear surface of the rod body is provided with a mounting hole, and the front surface of the positioning sheet is tightly attached to the inner surface of the mounting hole.
The utility model has the advantages that: the utility model discloses set up one kind and constituted the retained mandrel by retained mandrel head and retained mandrel body, when using, will retain the inside that the mandrel is whole to stretch into the idiosome, utilize outside three compression roller to process the idiosome, after using a period, when retained mandrel head takes place wearing and tearing, demolish the nut, pull out connecting rod and extension head afterwards, be convenient for extend the change of head, effectual head wearing and tearing of having solved current retained mandrel can only wholly change the extravagant problem of the lower body of rod of rear end degree of wear when serious, and use cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the assembly of the present invention;
FIG. 3 is a sectional structure diagram of the stopper rod head of the present invention;
fig. 4 is a schematic view of the sectioning structure of the retained mandrel body of the present invention.
Description of reference numerals: 1. the limiting mandrel comprises a limiting mandrel head 11, an expansion head 12, a sliding body 13, air holes 14, a groove 15, a fixing frame 16, an engaging groove 17, a connecting rod 18, a nut 19, a positioning sheet 2, a limiting mandrel body 21, a rod body 22, an inserting groove 23, an engaging head 24, a mounting hole 25, a spiral groove 26 and an air hole.
Detailed Description
The invention will be further described with reference to specific examples, which are intended to be illustrative only and not to limit the scope of the invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents also fall within the scope of the appended claims.
Referring to fig. 1-4, the utility model discloses a structural schematic diagram, a three-roller restraint mandrel for continuous tube mill, including restraint mandrel head 1, the rear end of restraint mandrel head 1 is equipped with restraint mandrel body 2, restraint mandrel head 1 includes extension head 11, the rear end of extension head 11 is equipped with mount 15, the rear end integrated into one piece of mount 15 has connecting rod 17, restraint mandrel body 2 includes the body of rod 21, the center department of the body of rod 21 has seted up air vent 26, connecting rod 17 cup joints the internal surface at air vent 26, the inner wall outside end of the body of rod 21 has seted up helicla flute 25;
the utility model discloses set up one kind and constituted the retained mandrel by retained mandrel head 1 and retained mandrel body 2, when using, the whole inside that stretches into the idiosome with the retained mandrel, utilize outside three compression roller to process the idiosome, after using a period, when retained mandrel head 1 takes place wearing and tearing, demolish nut 18, pull out connecting rod 17 and extension head 11 afterwards, be convenient for extend the change of head 11, effectual head wearing and tearing of having solved current retained mandrel can only whole change lead to the lower extravagant problem of the body of rod of rear end degree of wear when serious, and use cost is reduced.
The front end of the expansion head 11 is integrally formed with a sliding body 12, the center of the sliding body 12 is provided with a vent hole 13, and the outer surface of the expansion head 11 is provided with a chromium-containing alloy layer.
The rear surface of the air hole 13 is provided with a groove 14, the fixing frame 15 is integrally formed on the inner surface of the groove 14, the material change of the rod body 21 in the process of rapidly cooling after processing is improved by utilizing the air hole 13 and the spiral groove 25, and cracks are avoided.
The rear end welding of connecting rod 17 has the screw rod, and the surface spiro union of screw rod has nut 18, and the front end integrated into one piece of nut 18 has spacer 19, utilizes nut 18 and connecting rod 17 structure to be convenient for the change of restriction mandrel head 1, and the front end of spacer 19 is a recess structure face similar to bowl gear, guarantees the inside gas circulation of air vent 16.
The front end of the center of the rod body 21 is integrally formed with an engaging head 23, the rear surface of the expansion head 11 is provided with an engaging groove 16, the engaging groove 16 is sleeved on the outer surface of the engaging head 23, the front surface of the engaging head 23 is provided with a slot 22, and the slot 22 is sleeved on the outer surface of the fixing frame 15.
The rear surface of the rod body 21 is provided with a mounting hole 24, and the front surface of the positioning sheet 19 is tightly attached to the inner surface of the mounting hole 24.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A three-roller retained mandrel for a continuous tube mill, comprising a retained mandrel head (1), characterized in that: the rear end of the restraint mandrel head (1) is equipped with a restraint mandrel body (2), the restraint mandrel head (1) comprises an expansion head (11), the rear end of the expansion head (11) is equipped with a fixing frame (15), the rear end of the fixing frame (15) is integrally formed with a connecting rod (17), the restraint mandrel body (2) comprises a rod body (21), the center of the rod body (21) is provided with an air vent (26), the connecting rod (17) is sleeved on the inner surface of the air vent (26), and the outer side end of the inner wall of the rod body (21) is provided with a spiral groove (25).
2. A three-roll retained mandrel for use in a continuous tube mill according to claim 1, wherein: the front end of the expansion head (11) is integrally formed with a sliding body (12), and the center of the sliding body (12) is provided with a vent hole (13).
3. A three-roll retained mandrel for use in a continuous tube mill according to claim 2, wherein: the rear surface of the air hole (13) is provided with a groove (14), and the fixing frame (15) is integrally formed on the inner surface of the groove (14).
4. A three-roll retained mandrel for use in a continuous tube mill according to claim 1, wherein: the rear end welding of connecting rod (17) has the screw rod, the surface spiro union of screw rod has nut (18), the front end integrated into one piece of nut (18) has locating piece (19).
5. A three-roll retained mandrel for use in a continuous tube mill according to claim 1, wherein: the front end of the center of the rod body (21) is integrally formed with an engaging head (23), the rear surface of the expansion head (11) is provided with an engaging groove (16), the engaging groove (16) is sleeved on the outer surface of the engaging head (23), the front surface of the engaging head (23) is provided with a slot (22), and the slot (22) is sleeved on the outer surface of the fixing frame (15).
6. A three-roll retained mandrel for use in a continuous tube mill according to claim 1, wherein: the rear surface of the rod body (21) is provided with a mounting hole (24), and the front surface of the positioning sheet (19) is tightly attached to the inner surface of the mounting hole (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120474721.1U CN214813601U (en) | 2021-03-05 | 2021-03-05 | Three-roller retained mandrel for continuous tube mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120474721.1U CN214813601U (en) | 2021-03-05 | 2021-03-05 | Three-roller retained mandrel for continuous tube mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214813601U true CN214813601U (en) | 2021-11-23 |
Family
ID=78884730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120474721.1U Active CN214813601U (en) | 2021-03-05 | 2021-03-05 | Three-roller retained mandrel for continuous tube mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214813601U (en) |
-
2021
- 2021-03-05 CN CN202120474721.1U patent/CN214813601U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4893858B2 (en) | Manufacturing method of seamless metal pipe by cold rolling | |
| CN102974646B (en) | Manufacturing process of aluminum alloy water-drop-shaped thin-wall tubular material | |
| TW200821057A (en) | Method of manufacturing ultrathin wall metallic tube by cold working method | |
| CN105798538A (en) | Differential case extrusion and punching process | |
| CN101209458B (en) | Method for rolling tube by hot-rolled seamless tube restraint core rod continuous rolling mill | |
| CN2925666Y (en) | Puncture extruder for producing aluminum-alloy seamless pipe | |
| CN214813601U (en) | Three-roller retained mandrel for continuous tube mill | |
| CN106670249A (en) | Extruding-expanding molding method for rim provided with flange | |
| KR101615286B1 (en) | Method of hot extruding thin hot finished pipe | |
| CN207222665U (en) | A kind of roller blank holder | |
| CN101530873B (en) | Process for fabricating slotted liner bushing | |
| CA2476122A1 (en) | Method of making metal workpiece | |
| CN111515251A (en) | Expanding device for seamless steel pipe perforation | |
| CN102909300A (en) | Gear-shaped tubular column cold forging and shaping method and gear extruding and hole extruding mould | |
| CN105382155A (en) | Roll forming method for alpha-beta two-phase titanium alloy thick-wall ring forged piece | |
| CN202779588U (en) | Penetrating reducing mold | |
| CN211757612U (en) | Core rod for producing thin-wall seamless tube | |
| CN211613955U (en) | Pipe with folded edge | |
| CN107891083B (en) | A kind of mold for automobile straight tube pipe end molding convex closure and fine synchronous processing | |
| CN201161255Y (en) | Mould for internal thread steel tube for manufacturing high pressure boiler | |
| CN210474976U (en) | Oblique rolling mill roller | |
| CN210280187U (en) | Rolling plug for hexagonal pipe | |
| CN102744343B (en) | Forging method of thin-wall drill bit and through diameter reducing die | |
| CN201172081Y (en) | Reducing elbow processing device for wind and lip instrument | |
| CN104624879A (en) | Roll forming method for thick-wall ring forging of bearing steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |