CN220697860U - High-strength short-distance threading needle core head - Google Patents
High-strength short-distance threading needle core head Download PDFInfo
- Publication number
- CN220697860U CN220697860U CN202322354100.1U CN202322354100U CN220697860U CN 220697860 U CN220697860 U CN 220697860U CN 202322354100 U CN202322354100 U CN 202322354100U CN 220697860 U CN220697860 U CN 220697860U
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- section
- conical surface
- length
- working belt
- surface section
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- 238000001125 extrusion Methods 0.000 abstract description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the field of aluminum extrusion, in particular to a high-strength short-distance threading needle core head which comprises a thread section, a connecting part and a working belt. The connecting portion comprises a connecting section, a middle section and a conical surface section, an annular groove is formed between the connecting section and the threaded section, the middle section is located on the right side of the connecting section, and the conical surface section is located on the right side of the middle section. The conical surface section is directly connected with the working belt, and the length of the conical surface section is larger than the sum of the length of the middle section and the length of the connecting section. The circumferential surface of the connecting part is provided with a disassembly table, and the disassembly table is positioned on the plane of the connecting section, the middle section and the conical surface section. The joint between the working belt and the conical surface section is arc-shaped, and the length of the working belt is smaller than that of the conical surface section. When in use, the left side of the thread section is connected with the needle threading rod. The connection between the working belt and the conical surface section is subjected to smaller pressure during extrusion, the length of the working belt is also shorter, and the probability of bending and breaking the hair of the needle threading core can be reduced.
Description
Technical Field
The utility model relates to the field of aluminum extrusion, in particular to a high-strength short-distance threading needle core head.
Background
In the backward extrusion process of the aluminum alloy seamless pipe, the traditional needle threading core head is long in size, and the joint between the inclined plane of the core head and the working belt is in a straight line shape, so that the joint is required to bear larger stress in the extrusion process, and is easy to bend or break. The bending and breaking of the threading needle core head not only can cause the pipe to have serious eccentricity and influence the product quality, but also has lower extrusion quantity of the pipe, and can prolong the production time and reduce the production efficiency because of frequent replacement of the threading needle.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides a high-strength short-distance needle threading core head, and the core head is not easy to bend and break in the extrusion process.
According to the technical scheme provided by the utility model, the core head comprises a threaded section, a connecting part and a working belt, wherein the connecting part comprises a connecting section, a middle section and a conical surface section, an annular groove is arranged between the connecting section and the threaded section, the middle section is positioned on the right side of the connecting section, and the conical surface section is positioned on the right side of the middle section; the conical surface section is directly connected with the working belt, and the length of the conical surface section is larger than the sum of the length of the middle section and the length of the connecting section; the circumferential surface of the connecting part is provided with a disassembly table, and the disassembly table is a plane positioned on the connecting section, the middle section and the conical surface section.
Further, the joint between the working belt and the conical surface section is arc-shaped.
Further, the length of the working belt is smaller than the length of the conical surface section.
Further, in use, the left side of the thread segments is connected to the needle bar.
Further, the taper angle of the taper section is 50 °.
Further, the length of the working belt is 20-26mm.
Further, the length of the working belt is 23mm.
The utility model has the advantages that:
1. the included angle of the two ends of the conical surface section of the traditional threading core head is 52 degrees, and the included angle of the two ends of the conical surface section is reduced to 50 degrees, so that the gap between the conical surface section and the outer die of the die is increased, extrusion resistance is reduced, and aluminum alloy can enter the die conveniently.
2. The joint between the working belt and the conical surface section is changed from straight line shape into circular arc shape, so that the stress born by the joint during extrusion is reduced, and the probability of bending and breaking the hair of the needle threading core is reduced.
3. The length of the working belt is shortened from the traditional 31mm to 20-26mm, preferably 23mm, and the working belt is not easy to bend and break in the extrusion process.
4. The surface of connecting portion is equipped with the dismantlement platform, can make things convenient for the dismantlement and the change of puncture core head.
Drawings
Fig. 1 is a cross-sectional view of the structure of the present utility model.
1-screw thread section, 2-connecting section, 3-middle section, 4-conical surface section, 5-dismantlement platform, 6-operating band.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a high-strength short-distance threading needle core head, which comprises a thread section 1, a connecting part and a working belt 6, wherein the connecting part comprises a connecting section 2, a middle section 3 and a conical surface section 4, and an annular groove is arranged between the connecting section 2 and the thread section 1 and is used for connecting the thread section 1 with the connecting section 2; the middle section 3 is positioned on the right side of the connecting section 2, and the right side of the middle section 3 is the conical surface section 4. The conical surface section 4 is directly connected with the working belt 6, and the length of the conical surface section 4 is larger than the sum of the length of the middle section 3 and the length of the connecting section 2. The disassembly table 5 is arranged on the circumferential surface of the connecting part, and the disassembly table 5 is a plane positioned on the connecting section 2, the middle section 3 and the conical surface section 4, so that the disassembly and replacement of the threading needle core head can be facilitated. The joint between the working belt 6 and the conical surface section 4 is arc-shaped, so that the stress on the joint in the extrusion process can be reduced. The length of the working belt 6 is smaller than the length of the conical surface section 4. The left side of the thread section 1 is connected with a needle threading rod in use. The cone angle of the conical surface section 4 can be 50 degrees, so that the gap between the conical surface section and the outer die of the die is increased, and aluminum is easier to enter the die; the length of the working belt 6 is shortened to 20-26mm, preferably 23mm, compared with the conventional one, so that bending and breaking are not easy to occur during the extrusion process.
The working process of the utility model is as follows:
firstly, connecting a threading core head on a threading rod through a thread section 1; then, putting aluminum or aluminum alloy to be pressurized into the die, and gradually flowing into the die through a gap between the conical surface section 4 and the outer die of the die; finally, after the aluminum or aluminum alloy in the die reaches a certain amount, the aluminum or aluminum alloy is extruded through the working belt 6 on the needle core head, so that a seamless pipe with a certain inner diameter is formed.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to examples, it will be understood by those skilled in the art that various modifications and equivalents may be made thereto without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (7)
1. The utility model provides a high strength short distance puncture needle core head, includes screw thread section (1), connecting portion and working tape (6), characterized by: the connecting part comprises a connecting section (2), a middle section (3) and a conical surface section (4), wherein an annular groove is formed between the connecting section (2) and the threaded section (1), the middle section (3) is positioned on the right side of the connecting section (2), and the conical surface section (4) is positioned on the right side of the middle section (3); the conical surface section (4) is directly connected with the working belt (6), and the length of the conical surface section (4) is larger than the sum of the length of the middle section (3) and the length of the connecting section (2); the connecting part is provided with a disassembly table (5) on the circumferential surface, and the disassembly table (5) is a plane positioned on the connecting section (2), the middle section (3) and the conical surface section (4).
2. The high strength short gauge needle of claim 1, wherein: the joint between the working belt (6) and the conical surface section (4) is arc-shaped.
3. The high strength short gauge needle of claim 1, wherein: the length of the working belt (6) is smaller than that of the conical surface section (4).
4. The high strength short gauge needle of claim 1, wherein: the left side of the thread section (1) is connected with the needle threading rod in use.
5. The high strength short gauge needle of claim 1, wherein: the cone angle of the cone section (4) is 50 degrees.
6. The high strength short gauge needle of claim 1, wherein: the length of the working belt (6) is 20-26mm.
7. The high strength short gauge needle of claim 6, wherein: the length of the working belt (6) is 23mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354100.1U CN220697860U (en) | 2023-08-31 | 2023-08-31 | High-strength short-distance threading needle core head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354100.1U CN220697860U (en) | 2023-08-31 | 2023-08-31 | High-strength short-distance threading needle core head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220697860U true CN220697860U (en) | 2024-04-02 |
Family
ID=90453326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322354100.1U Active CN220697860U (en) | 2023-08-31 | 2023-08-31 | High-strength short-distance threading needle core head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220697860U (en) |
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2023
- 2023-08-31 CN CN202322354100.1U patent/CN220697860U/en active Active
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