CN104325030A - End part diameter reducing device for pipe fitting - Google Patents
End part diameter reducing device for pipe fitting Download PDFInfo
- Publication number
- CN104325030A CN104325030A CN201410476802.XA CN201410476802A CN104325030A CN 104325030 A CN104325030 A CN 104325030A CN 201410476802 A CN201410476802 A CN 201410476802A CN 104325030 A CN104325030 A CN 104325030A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- patrix
- hole
- die
- die cavity
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
Abstract
The invention relates to the technical field of pipe fitting molding equipment, in particular to an end part diameter reducing device for a pipe fitting. The end part diameter reducing device comprises a lower die holder and an upper die holder positioned above the lower die holder, wherein a lower die sleeve is fixedly arranged on the middle part of the lower die holder; an assembling hole provided with a step surface is formed in the middle part of the lower die sleeve; a lower die is arranged at the bottom of the assembling hole; a limiting groove for limiting the end part of the pipe fitting is formed in the lower die; the lower end face of the upper die holder is provided with a mounting through hole provided with a two-stage step surface; a first upper die is assembled on the upper step surface in the mounting through hole; a second upper die is assembled on the lower step surface; the lower end face of the first upper die is provided with a concave die groove; the middle part of the second upper die is provided with a through-hole-shaped die cavity penetrating through the upper and lower surfaces; the section of the through-hole die cavity is flared; one end of a push rod passes through the upper die holder to push the first upper die to move. The end part diameter reducing device has the advantages of simple structure, reasonable design, good molding effect and high efficiency.
Description
Technical field
The present invention relates to formation of tubes equipment technical field, be specifically related to a kind of pipe fitting end reduced device.
Background technology
When reducing one end of pipe fitting, because the design of existing structure is unreasonable, cause the quality of pipe fitting to reduce, and efficiency is lower.
Summary of the invention
For the problems referred to above, the invention provides a kind of structure simple, reasonable in design, ensure pipe fitting quality, the pipe fitting end reduced device of increasing work efficiency.
The present invention is achieved through the following technical solutions:
Pipe fitting end reduced device, comprise die shoe, be positioned at the upper bolster above die shoe, lower die-sleeve is fixedly installed in the middle part of die shoe, the pilot hole with step surface is offered in the middle part of this lower die-sleeve, the bottom of described pilot hole is provided with counterdie, this counterdie offers the stopper slot for spacing pipe fitting end, described upper bolster lower surface offers the installation through hole with two-stage step surface, the first patrix is equipped with at the step surface installing through hole internal upper part, the step surface of bottom is equipped with the second patrix, described first patrix lower surface offers spill die cavity, the through hole shape die cavity running through upper and lower surface is offered in the middle part of second patrix, the cross section of through hole shape die cavity is tubaeform, and the push rod moved for promoting the first patrix through upper bolster in one end.
Have employed such scheme, pipe fitting lower end is positioned over carry out in the stopper slot of counterdie spacing, pipe fitting is vertical state, and the through hole shape die cavity dead in line of the spill die cavity of the axis of pipe fitting and the first patrix, the second patrix, Forming Quality can be ensured like this, upper bolster drives the first patrix, the second patrix descending, due to the tubaeform design of the second patrix, thus the extruding of the upper end diameter of pipe fitting can be reduced, after extruding has been reduced, by the promotion of push rod, pipe fitting can be pushed out, and realizes the object of discharging; The present invention has that structure is simple, reasonable in design, molding effect and the high advantage of efficiency.
Further, the described limited cover be provided with in upper bolster lower end for the first patrix, the second patrix being limited in through hole shape die cavity, this limited cover and upper bolster lower end outer wall threaded engagement, the middle part of described limited cover offers the resigning hole making way for pipe fitting.
Further, the aperture, upper end of described through hole shape die cavity and the equal diameters of above-mentioned spill die cavity, aperture, lower end increases downwards gradually.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Detailed description of the invention:
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
As Fig. 1, pipe fitting end reduced device, comprise die shoe 1, be positioned at the upper bolster 2 above die shoe, lower die-sleeve 3 is fixedly installed in the middle part of die shoe, the pilot hole with step surface is offered in the middle part of this lower die-sleeve, the bottom of pilot hole is provided with counterdie 4, this counterdie offers the stopper slot 6 for spacing pipe fitting 5 end, sleeve pipe 7 is provided with in pilot hole above counterdie, the diameter of bore of this sleeve pipe is slightly larger than the external diameter of pipe fitting 5, the external diameter of sleeve pipe is slightly less than the diameter of pilot hole, can carry out firmly spacing to pipe fitting end by the setting of sleeve pipe like this, and the assembly precision of pipe fitting can be ensured, the pressure ring 8 for limit casing 7 is provided with above lower die-sleeve,
Upper bolster lower surface offers the installation through hole 9 with two-stage step surface, the first patrix 10 is equipped with at the step surface installing through hole internal upper part, the step surface of bottom is equipped with the second patrix 11, described first patrix lower surface offers spill die cavity 12, spill die cavity is used for holding the upper end of pipe fitting 5 and spacing, the through hole shape die cavity 13 running through upper and lower surface is offered in the middle part of second patrix, the cross section of through hole shape die cavity is tubaeform, and the push rod 14 moved for promoting the first patrix through upper bolster in one end.Wherein, between the first patrix, the second patrix, be provided with packing ring, between packing ring and the first patrix, leave gap, when blanking, promote the first patrix for push rod and move downward; Wherein, be provided with the limited cover 15 for the first patrix, the second patrix being limited in through hole shape die cavity in upper bolster lower end, this limited cover and upper bolster lower end outer wall threaded engagement, the middle part of described limited cover offers the resigning hole making way for pipe fitting.The aperture, upper end of through hole shape die cavity and the equal diameters of above-mentioned spill die cavity, aperture, lower end increases downwards gradually.
The present invention is not limited to described embodiment, and those skilled in the art, not departing from spirit of the present invention namely openly in scope, still can do some and revise or change, therefore the scope that the scope of the present invention limits with claims is as the criterion.
Claims (3)
1. pipe fitting end reduced device, comprise die shoe, be positioned at the upper bolster above die shoe, it is characterized in that, lower die-sleeve is fixedly installed in the middle part of die shoe, the pilot hole with step surface is offered in the middle part of this lower die-sleeve, the bottom of described pilot hole is provided with counterdie, this counterdie offers the stopper slot for spacing pipe fitting end, described upper bolster lower surface offers the installation through hole with two-stage step surface, the first patrix is equipped with at the step surface installing through hole internal upper part, the step surface of bottom is equipped with the second patrix, described first patrix lower surface offers spill die cavity, the through hole shape die cavity running through upper and lower surface is offered in the middle part of second patrix, the cross section of through hole shape die cavity is tubaeform, and the push rod moved for promoting the first patrix through upper bolster in one end.
2. pipe fitting end reduced device according to claim 1, it is characterized in that, the described limited cover be provided with in upper bolster lower end for the first patrix, the second patrix being limited in through hole shape die cavity, this limited cover and upper bolster lower end outer wall threaded engagement, the middle part of described limited cover offers the resigning hole making way for pipe fitting.
3. pipe fitting end reduced device according to claim 1 and 2, is characterized in that, the aperture, upper end of described through hole shape die cavity and the equal diameters of above-mentioned spill die cavity, aperture, lower end increases downwards gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476802.XA CN104325030A (en) | 2014-09-17 | 2014-09-17 | End part diameter reducing device for pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476802.XA CN104325030A (en) | 2014-09-17 | 2014-09-17 | End part diameter reducing device for pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104325030A true CN104325030A (en) | 2015-02-04 |
Family
ID=52399902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410476802.XA Pending CN104325030A (en) | 2014-09-17 | 2014-09-17 | End part diameter reducing device for pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104325030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033082A (en) * | 2015-07-31 | 2015-11-11 | 无锡鼎宇机械科技有限公司 | Tube shrinkage mold |
-
2014
- 2014-09-17 CN CN201410476802.XA patent/CN104325030A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033082A (en) * | 2015-07-31 | 2015-11-11 | 无锡鼎宇机械科技有限公司 | Tube shrinkage mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150204 |