CN211891919U - Bendable core rod structure - Google Patents
Bendable core rod structure Download PDFInfo
- Publication number
- CN211891919U CN211891919U CN201922464208.XU CN201922464208U CN211891919U CN 211891919 U CN211891919 U CN 211891919U CN 201922464208 U CN201922464208 U CN 201922464208U CN 211891919 U CN211891919 U CN 211891919U
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- rod
- mandrel
- core rod
- spherical
- positioning ball
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Abstract
The utility model discloses a bendable core rod structure, which comprises a core rod, wherein the front end inside the core rod is provided with a core rod combining rod, and the rear end is provided with a cavity; the mandrel combining rod also comprises a positioning ball groove, and the ball center of the positioning ball groove is positioned on the axis of the mandrel rod; the core rod combination rod is fixed in the core rod through the combination screw from the rear end cavity; the utility model discloses a change the stereoplasm plug structure and become soft plug, improved the finished product quality of arc pipe fitting.
Description
Technical Field
The utility model relates to a high-speed plug production technical field specifically is a plug structure that can buckle.
Background
The core rod is a part of a mold for forming a profile surface in a green compact or sintered body in a pressing direction, is a main component of a parison injection mold and a blow mold, is an inner neck constituting the shape of the inner surface of a parison and the neck of a product, and is one of key parts of the blow mold. The inlet and outlet for compressed air is equivalent to a parison blowing rod for extrusion blow molding, and compressed air can be introduced into the blow molding die to blow and expand the parison. Most of the existing core rods are rigid structures, so that damage is easily caused in the membrane, and the integrity of the curved structures is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a following technical scheme: a bendable core rod structure comprises a core rod, wherein a core rod combining rod is arranged at the front end inside the core rod, and a cavity is arranged at the rear end inside the core rod; the mandrel combining rod also comprises a positioning ball groove, and the ball center of the positioning ball groove is positioned on the axis of the mandrel rod; the core rod connecting rod is fixed in the core rod through the rear end cavity by the combination screw.
Preferably, the device also comprises a plurality of hemispherical rods and a spherical rod; the upper part of the hemispherical rod is provided with a spherical bulge, the lower part of the hemispherical rod is provided with a base, and the positioning ball groove is formed in the base; the upper part of the spherical rod is a spherical bulge, and the lower part of the spherical rod is a plane base.
Preferably, a steel ball is arranged at the bottom of the positioning ball groove, and a positioning spring is fixed outside the steel ball.
Preferably, the spherical protrusions of the hemispherical rod are sequentially installed in the positioning ball grooves, and the spherical rod is installed at last.
Preferably, the device further comprises beads, wherein the beads are sleeved on the base and the plane base and are fixed through the shaft by using the clamp spring.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses a set up the outside pearl of multisection ball-shaped pole and ball-shaped pole, make the fixed plug of original shape can change its angle and shape according to inside moulding needs to because pearl surface structure is smooth, can not pull the pipe wall, the pipe circular arc outside also can avoid the swell to break even.
Drawings
FIG. 1 is a view of the structure of the present invention;
FIG. 2 is a view of a usage scenario of the present invention;
in the figure: 1 mandrel rod, 2 mandrel combination rods, 3 cavities, 4 positioning ball grooves, 5 combination screws, 6 hemispherical rods, 7 spherical rods, 8 spherical bulges, 9 bases, 10 steel balls, 11 positioning springs, 12-axis snap springs, 13 beads and 14 plane bases.
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. 1-2, a bendable mandrel structure includes a mandrel rod 1, wherein a mandrel combining rod 2 is disposed at the front end of the mandrel rod 1, and a cavity 3 is disposed at the rear end of the mandrel rod 1; the mandrel combining rod 2 further comprises a positioning ball groove 4, and the ball center of the positioning ball groove 4 is positioned on the axis of the mandrel rod 1; the core rod connecting rod device further comprises a connecting screw 5, and the connecting screw 5 fixes the core rod connecting rod 2 in the core rod 1 from the rear end cavity 3.
Also comprises a plurality of hemispherical rods 6 and a spherical rod 7; the upper part of the hemispherical rod 6 is provided with a spherical bulge 8, the lower part of the hemispherical rod is provided with a base 9, and the positioning ball groove 4 is arranged in the base 9; the upper part of the spherical rod 7 is provided with a spherical bulge 8, and the lower part is provided with a plane base 14. In order to prevent the whole ball socket structure from being randomly deformed due to shaking, a steel ball 10 is arranged at the bottom of the positioning ball groove 4, a positioning spring 11 is fixed outside the steel ball 10, and the spherical protrusion 8 is tightly pressed by the positioning spring 11. The spherical protrusions 8 of the hemispherical rod 6 are sequentially arranged in the positioning ball grooves 4, and the spherical rod 7 is arranged at last. In order to make the external shape of the whole ball socket structure smooth and easy to push, the ball socket structure further comprises a bead 13, wherein the bead 13 is sleeved on the base 9 and the plane base 14 and is fixed by a clamp spring 12 through a shaft.
To sum up, in order to achieve the effect of manufacturing the elbow, the spherical rod 7 and the hemispherical rod 6 are hinged with each other, so that the multi-section ball socket structure at the top end of the mandrel can be bent in multiple directions, can adapt to various deformations, is beneficial to penetrating into a pipe fitting and manufacturing a high-quality finished product.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A mandrel structure that can buckle, includes mandrel pole (1), its characterized in that: the front end of the interior of the mandrel rod (1) is provided with a mandrel combining rod (2), and the rear end is provided with a cavity (3); the mandrel combined rod (2) further comprises a positioning ball groove (4), and the center of sphere of the positioning ball groove (4) is positioned on the axis of the mandrel rod (1); the core rod connecting rod is characterized by further comprising a connecting screw (5), and the core rod connecting rod (2) is fixed in the core rod (1) through the connecting screw (5) from the rear end cavity (3).
2. The bendable mandrel structure of claim 1, wherein: also comprises a plurality of hemispherical rods (6) and a spherical rod (7); the upper part of the hemispherical rod (6) is provided with a spherical bulge (8), the lower part of the hemispherical rod is provided with a base (9), and the positioning ball groove (4) is formed in the base (9); the upper part of the spherical rod (7) is provided with a spherical bulge (8), and the lower part is provided with a plane base (14).
3. The bendable mandrel structure of claim 2, wherein: the bottom of the positioning ball groove (4) is provided with a steel ball (10), and a positioning spring (11) is fixed outside the steel ball (10).
4. The bendable mandrel structure of claim 3, wherein: the spherical protrusions (8) of the hemispherical rods (6) are sequentially arranged in the positioning ball grooves (4), and the spherical rods (7) are arranged at last.
5. The bendable mandrel structure of claim 4, wherein: still include pearl (13), pearl (13) cup joint in base (9) with on plane base (14), fix with jump ring (12) through the axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464208.XU CN211891919U (en) | 2019-12-31 | 2019-12-31 | Bendable core rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464208.XU CN211891919U (en) | 2019-12-31 | 2019-12-31 | Bendable core rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211891919U true CN211891919U (en) | 2020-11-10 |
Family
ID=73295103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922464208.XU Active CN211891919U (en) | 2019-12-31 | 2019-12-31 | Bendable core rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211891919U (en) |
-
2019
- 2019-12-31 CN CN201922464208.XU patent/CN211891919U/en active Active
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