CN214866184U - Steel pipe cold-drawing die - Google Patents
Steel pipe cold-drawing die Download PDFInfo
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- CN214866184U CN214866184U CN202120024609.8U CN202120024609U CN214866184U CN 214866184 U CN214866184 U CN 214866184U CN 202120024609 U CN202120024609 U CN 202120024609U CN 214866184 U CN214866184 U CN 214866184U
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- steel pipe
- pull rod
- buffer spring
- centre form
- pipe cold
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Abstract
The utility model belongs to the technical field of the steel pipe processing technique and specifically relates to indicate a steel pipe cold drawing mould, including the centre form, the external mold, the pull rod, fixing nut, the packing ring, connecting screw rod, toper reducing area, circular reducing area, buffer spring, the gasket, connect, the device is mainly through carrying out the cold drawing processing with the steel pipe from external mold hole and centre form extexine, and connecting screw rod at pull rod left end department can the atress of carrier part cold drawing in-process, is provided with buffer spring simultaneously between pull rod and centre form, can further bear the weight of the atress to make and reduce the pull rod and damage, extension mould life.
Description
Technical Field
The utility model belongs to the technical field of the steel pipe processing technique and specifically relates to indicate a steel pipe cold drawing mould.
Background
In the cold drawing process of the seamless steel tube, the steel tube is divided into wall-reducing and diameter-expanding processing and wall-reducing and diameter-reducing processing, the two processing methods are mainly distinguished in the wall-reducing and diameter-expanding processing mode, the wall-reducing and diameter-expanding processing mode is characterized in that the inner die bears larger deformation resistance in the wall-reducing process, and the outer die is used in the opposite process.
Wherein the pull rod needs to bear higher bearing capacity in the cold drawing process of the inner die, but when the bearing capacity is insufficient, the pull rod is easy to damage, which is not beneficial to smooth cold drawing of the steel tube.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
The utility model provides a steel pipe cold drawing mould, which comprises an internal mold, external mold and pull rod, the internal mold is installed inside the external mold, the pull rod runs through both sides end about the internal mold, pull rod right-hand member tip is provided with fixation nut, be provided with the packing ring between fixation nut and the interior mould right side wall, pull rod left end tip is provided with connecting screw, external mold hole left end is provided with toper reducing area, external mold hole right-hand member is provided with circular reducing area, be provided with the slotted hole between pull rod and the internal mold, be provided with buffer spring in the slotted hole, buffer spring is the toper shape, buffer spring reduces by left right side diameter gradually, and the buffer spring right-hand member is connected with the packing ring contact.
Further, a gasket is arranged at the end part of the left end of the buffer spring.
Furthermore, the outer surface layer of the inner die is provided with a reducing belt corresponding to the inner hole of the outer die.
Further, a steel pipe is arranged between the inner die and the outer die.
Further, the left end of the connecting screw rod is provided with a joint.
Further, the gasket and the gasket are both made of hard rubber.
The utility model has the advantages that: a cold-drawing die for steel tube is composed of an internal die, an external die, a pull rod passing through the left and right ends of internal die, a fixing nut at the right end of pull rod, a washer between said fixing nut and the right wall of internal die, a connecting screw rod at the left end of pull rod, a conic reducing band at the left end of internal hole of external die, a circular reducing band at the right end of internal hole of external die, a slotted hole between pull rod and internal die, a buffer spring in conic shape and decreasing its diameter gradually from left to right, and a washer for contacting with the right end of buffer spring, thereby reducing the damage of the pull rod and prolonging the service life of the die.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The attached figures in the drawing are respectively marked as follows: an inner die-1, an outer die-2, a pull rod-3, a fixing nut-4, a gasket-5, a connecting screw rod-6, a tapered reducing belt-7, a circular reducing belt-8, a buffer spring-9, a gasket-10 and a joint-11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but 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, the device comprises an inner mold 1, an outer mold 2 and a pull rod 3, wherein the inner mold 1 is installed inside the outer mold 2, the pull rod 3 penetrates through the left and right side ends of the inner mold 1, a fixing nut 4 is arranged at the right end of the pull rod 3, a gasket 5 is arranged between the fixing nut 4 and the right wall of the inner mold 1, a connecting screw rod 6 is arranged at the left end of the pull rod 3, a tapered reducing belt 7 is arranged at the left end of an inner hole of the outer mold 2, a circular reducing belt 8 is arranged at the right end of an inner hole of the outer mold 2, a slotted hole is arranged between the pull rod 3 and the inner mold 1, a buffer spring 9 is arranged in the slotted hole, the buffer spring 9 is in a tapered shape, the diameter of the buffer spring 9 is gradually reduced from left to right, the right end of the buffer spring 9 is in contact connection with the gasket 5, the device is mainly used for carrying out cold drawing treatment on a steel pipe from the inner hole of the outer surface layer of the outer mold 2 and the outer surface layer of the inner mold 1, and the connecting screw rod 6 at the left end of the pull rod 3 can bear the stress in the process of the cold drawing process, meanwhile, a buffer spring 9 is arranged between the pull rod 3 and the inner die 1, so that stress can be further borne, the damage of the pull rod 3 is reduced, and the service life of the die is prolonged.
The left end of the buffer spring 9 is provided with a gasket 10, so that the buffer spring 9 is prevented from being worn.
The outer surface layer of the inner die 1 is provided with a reducing belt corresponding to the inner hole of the outer die 2, and the corresponding diameter can be changed in the process of manufacturing a steel pipe by using a blank.
A steel pipe is arranged between the inner die 1 and the outer die 2 and is used for manufacturing the section.
The left end of the connecting screw rod 6 is provided with a joint 11, so that the connecting screw rod 6 can be conveniently connected with cold drawing machine equipment.
The gasket 5 and the gasket 10 are both made of hard rubber, so that the abrasion in the cold drawing process is reduced.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a steel pipe cold drawing mould which characterized in that: including the centre form, external mold and pull rod, the centre form is installed inside the external mold, the pull rod runs through both sides end about the centre form, pull rod right-hand member tip is provided with fixation nut, be provided with the packing ring between fixation nut and the centre form right wall, pull rod left end tip is provided with connecting lead screw, external mold hole left end is provided with the toper reducing area, external mold hole right-hand member is provided with circular reducing area, be provided with the slotted hole between pull rod and the centre form, be provided with buffer spring in the slotted hole, buffer spring is the toper shape, buffer spring reduces by left right diameter gradually, and the buffer spring right-hand member is connected with the packing ring contact.
2. A steel pipe cold-drawing die according to claim 1, characterized in that: a gasket is arranged at the end part of the left end of the buffer spring.
3. A steel pipe cold-drawing die according to claim 1, characterized in that: the outer surface layer of the inner die is provided with a reducing belt corresponding to the inner hole of the outer die.
4. A steel pipe cold-drawing die according to claim 1, characterized in that: a steel pipe is arranged between the inner die and the outer die.
5. A steel pipe cold-drawing die according to claim 1, characterized in that: the left end of the connecting screw rod is provided with a joint.
6. A steel pipe cold-drawing die according to claim 1, characterized in that: the gasket and the gasket are both made of hard rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120024609.8U CN214866184U (en) | 2021-01-06 | 2021-01-06 | Steel pipe cold-drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120024609.8U CN214866184U (en) | 2021-01-06 | 2021-01-06 | Steel pipe cold-drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214866184U true CN214866184U (en) | 2021-11-26 |
Family
ID=78864186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120024609.8U Active CN214866184U (en) | 2021-01-06 | 2021-01-06 | Steel pipe cold-drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214866184U (en) |
-
2021
- 2021-01-06 CN CN202120024609.8U patent/CN214866184U/en active Active
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