CN203292217U - Extrusion needle capable of decreasing extrusion pressure cutting allowance of tubing or hollow section - Google Patents
Extrusion needle capable of decreasing extrusion pressure cutting allowance of tubing or hollow section Download PDFInfo
- Publication number
- CN203292217U CN203292217U CN2012207230405U CN201220723040U CN203292217U CN 203292217 U CN203292217 U CN 203292217U CN 2012207230405 U CN2012207230405 U CN 2012207230405U CN 201220723040 U CN201220723040 U CN 201220723040U CN 203292217 U CN203292217 U CN 203292217U
- Authority
- CN
- China
- Prior art keywords
- tubing
- segment
- squeezing needle
- section
- extrusion
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an extrusion needle capable of decreasing the extrusion pressure cutting allowance of tubing or a hollow section. The extrusion needle is in a columnar structure, which comprises a working segment and a connecting end, wherein the connecting end is in threaded connection with a supporting segment; the working segment comprises a perforation diameter-directing segment and an expanding segment, wherein the diameter of the perforation diameter-directing segment is less than that of the expanding segment; a transition segment is arranged outside the perforation diameter-directing segment. According to the extrusion needle, the working segment is divided into the perforation diameter-directing segment and the expanding segment, so that the diameter of the expanding segment is greater than that of the perforation diameter-directing segment. Thus, after extrusion operation is finished, the wall thickness of the cutting pressure allowance position at the tail end of the tubing or the hollow section is less than that of the tubing or the hollow section. Therefore, the pressure cutting allowance is reduced; the service life of a saw web is prolonged. In addition, the replacement frequency of the saw web is lowered; the production efficiency is improved; the production cost is lowered.
Description
Technical field
The utility model belongs to the metal fever technical field of processing equipment, further belongs to extruding metal equipment auxiliary member technical field, is specifically related to a kind of squeezing needle that reduces tubing or the remaining sawing amount of hollow extrusion pressure.
Background technology
At present, the extrusion process of tubing or hollow profile comprises following key step: the heating of (1) ingot casting; The ingot casting that (2) will heat is sent into recipient together with the extruding pad; (3) extrusion axis drive squeezing needle pushes; (4) extruding finishes, and shears defective material.The front-end and back-end diameter of its active section of squeezing needle that uses in prior art consistent (as shown in Figure 1), be mainly under HTHP, ingot casting to be bored a hole and the interior hole dimension of definite goods, internal surface of pipe quality and dimensional accuracy are played conclusive effect.But for extruding large scale thick-wall tube or hollow profile, during material that particularly elevated temperature strength is higher, more difficult more than hobbing, saw life is lower, as certain station-service diameter of phi 1500mm, during the common stainless steel pipe of the circular saw blade for hot metal cut sawing Φ 325mm*28mm of thickness 10mm, saw life is no more than 20 times, and 20 of this specification steel pipes of normal extrusion, only need 1 hour, this just means will change one time saw blade every 1 hour, and sawblade-replacing was wanted more than 1 hour, thus this will cause extruding to be produced can't be continuously, normally carry out.Simultaneously, during changing saw blade, gas furnace needs insulation, and extruder and staving press Hydraulic Station need idle running, and these all need larger energy consumption.And sawblade-replacing frequently causes production cost to improve, and for this reason, the inventor, through concentrating on studies, has developed a kind of squeezing needle that reduces tubing or the remaining sawing amount of hollow extrusion pressure.
The utility model content
It is a kind of simple in structure that the purpose of this utility model is to provide, and can effectively reduce tubing or hollow extrusion and press the squeezing needle of remaining sawing amount.
The purpose of this utility model is achieved in that described squeezing needle is column structure, comprises active section and link, it is characterized in that described active section comprises perforation sizing section and expansion segment, arranges changeover portion between described perforation sizing section and expansion segment.
The utility model is divided into perforation sizing section and expansion segment with the active section of squeezing needle, makes the diameter of the diameter of expansion segment greater than the perforation sizing section.Like this after extruding finishes, tubing or hollow profile tail end hob the wall thickness of the wall thickness of remaining position (the residing position of squeezing needle expansion segment when namely extruding finishes) less than tubing or hollow profile, thereby reduced to press remaining sawing amount, extended saw blade lifetime, simultaneously, reduce the sawblade-replacing frequency, reduced production cost, improved production efficiency.
Description of drawings
Fig. 1 is squeezing needle structural representation in prior art;
Fig. 2 is the working state figure of squeezing needle in prior art;
Fig. 3 is the utility model overall structure schematic diagram;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the working state figure of the utility model;
In figure: 1-squeezing needle, 11-active section, 12-link, the 13-sizing section of boring a hole, 14-expansion segment, 15-changeover portion, the 16-blank section of clamp-oning, 2-recipient, 3-extrusion die, 4-dummy block, 5-section bar, 6-blank.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but never in any form the utility model is limited, any change or improvement based on the utility model training centre is done, all belong to protection domain of the present utility model.
as Fig. 1, shown in Figure 2, prior art squeezing needle 1 is column structure, comprise active section 11 and link 12, because the diameter of whole section of active section 11 is consistent, in carrying out thick-wall tube or hollow extrusion operation, after extruding finishes, because the wall thickness of section bar is thicker, can produce larger sawing and press surplus, with the time-consuming material that takes of saw blade cutting, and larger to the wearing and tearing of saw blade, each saw blade of changing needs about one hour, and push a tubing or hollow profile only about one hour, the frequent saw blade of changing not only causes huge waste of material, and have a strong impact on production efficiency.
As shown in Figure 3, Figure 4, squeezing needle 1 described in the utility model is column structure, comprise active section 11 and link 12, it is characterized in that described active section 11 comprises perforation sizing section 13 and expansion segment 14, arranges changeover portion 15 between described perforation sizing section 13 and expansion segment 14.
The axial length of described perforation sizing section 13 is 2/3 ~ 9/10 of squeezing needle axial overall length.
The diameter of described perforation sizing section 13 is 1/2 ~ 9/10 of expansion segment 14 diameters.
Between described perforation sizing section 13 and changeover portion 15, the blank section of clamp-oning 16 is set.
The length of the described blank section of clamp-oning 16 is 1/60 ~ 1/10 of squeezing needle total length.
The described blank section of clamp-oning 16 is pyramidal structure, and namely the diameter of close perforation sizing section 13 is less than the diameter near changeover portion 15.
Angle between the taper surface of the described blank section of clamp-oning 16 and squeezing needle axis is 15 ~ 60 °.
Described changeover portion 15 is 0 ~ 60 ° with the angle of squeezing needle axis.
Described changeover portion 15 is the indent arcwall face.
Described changeover portion 15 is the evagination arcwall face.
Below in conjunction with accompanying drawing 3 ~ 5, operation principles of the present utility model are described:
The research discovery, cause reducing saw life, and changing basic reason frequently is that the sawing amount is large, in fact, as long as reduce the sawing amount, just can reach the prolongation saw blade lifetime, the purpose of enhancing productivity.as shown in Figure 4, the utility model is divided into perforation sizing section 13 and expansion segment 14 with the active section of squeezing needle 1 11, and the diameter of the diameter of expansion segment 14 greater than perforation sizing section 13 is set, like this in the extrusion process of tubing or hollow profile, the wall thickness of expansion segment 14 place's tubing or hollow profile will be less than the wall thickness of the corresponding tubing in perforation sizing section 13 places or hollow profile, and corresponding tubing or the hollow profile in expansion segment 14 places namely hobs remaining position (in Fig. 5, dotted line position is for pressing remaining sawing position), so just greatly reduced the remaining sawing amount of pressing, thereby extended saw blade lifetime, reduced the sawblade-replacing frequency, improved production efficiency, reduced production cost.
Characteristics of the present utility model:
1, simple in structure, cost of manufacture is low;
2, easy to use, working stability is reliable;
3, greatly reduce the saw blade cutting output, extended and pressed remaining saw blade lifetime and replacement frequency, improved the continuity of producing, thereby improved production efficiency.
Claims (10)
1. one kind can be reduced tubing or hollow extrusion and presses the squeezing needle of remaining sawing amount, described squeezing needle (1) is column structure, comprise active section (11) and link (12), it is characterized in that described active section (11) comprises perforation sizing section (13) and expansion segment (14), arranges changeover portion (15) between described perforation sizing section (13) and expansion segment (14).
2. the squeezing needle that reduces tubing or the remaining sawing amount of hollow extrusion pressure according to claim 1, is characterized in that described perforation sizing section (13) axial length is 2/3 ~ 9/10 of squeezing needle axial overall length.
3. tubing or the hollow extrusion of reducing according to claim 1 pressed the squeezing needle of remaining sawing amount, and the diameter that it is characterized in that described perforation sizing section (13) is 1/2 ~ 9/10 of expansion segment (14) diameter.
4. described tubing or the hollow extrusion of reducing of any one pressed the squeezing needle of remaining sawing amount according to claim 1 ~ 3, it is characterized in that, between described perforation sizing section (13) and changeover portion (15), the blank section of clamp-oning (16) is set.
5. tubing or the hollow extrusion of reducing according to claim 4 pressed the squeezing needle of remaining sawing amount, and the length that it is characterized in that the described blank section of clamp-oning (16) is 1/60 ~ 1/10 of squeezing needle total length.
6. tubing or the hollow extrusion of reducing according to claim 4 pressed the squeezing needle of remaining sawing amount, it is characterized in that the described blank section of clamp-oning (16) is pyramidal structure, namely the diameter of close perforation sizing section (13) is less than the diameter near changeover portion (15).
7. the squeezing needle that reduces tubing or the remaining sawing amount of hollow extrusion pressure according to claim 4, is characterized in that the taper surface of the described blank section of clamp-oning (16) and the angle between the squeezing needle axis are 15 ~ 60 °.
8. described tubing or the hollow extrusion of reducing of any one pressed the squeezing needle of remaining sawing amount according to claim 1 ~ 3, it is characterized in that described changeover portion (15) and the angle of squeezing needle axis are 0 ~ 60 °.
9. described tubing or the hollow extrusion of reducing of any one pressed the squeezing needle of remaining sawing amount according to claim 1 ~ 3, it is characterized in that described changeover portion (15) is the indent arcwall face.
10. described tubing or the hollow extrusion of reducing of any one pressed the squeezing needle of remaining sawing amount according to claim 1 ~ 3, it is characterized in that described changeover portion (15) is the evagination arcwall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207230405U CN203292217U (en) | 2012-12-25 | 2012-12-25 | Extrusion needle capable of decreasing extrusion pressure cutting allowance of tubing or hollow section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207230405U CN203292217U (en) | 2012-12-25 | 2012-12-25 | Extrusion needle capable of decreasing extrusion pressure cutting allowance of tubing or hollow section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203292217U true CN203292217U (en) | 2013-11-20 |
Family
ID=49568257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207230405U Expired - Fee Related CN203292217U (en) | 2012-12-25 | 2012-12-25 | Extrusion needle capable of decreasing extrusion pressure cutting allowance of tubing or hollow section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203292217U (en) |
-
2012
- 2012-12-25 CN CN2012207230405U patent/CN203292217U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102284838B (en) | Heavy truck sleeve fork forge piece manufacturing process | |
| CN202701396U (en) | Cutting device for stainless steel thin walled tubes | |
| CN202943094U (en) | Jaw plate applied to drawbench | |
| CN103157958A (en) | Wheel spoke cold press molding machining technology | |
| CN101172325A (en) | Method for producing angle pin casing tube | |
| CN103071693B (en) | A kind of squeezing needle for big-size thinning plastic tubing or hollow profile and pressing method | |
| CN101856790A (en) | Production process for forming, forging and pressing square tubes in one step | |
| CN203292217U (en) | Extrusion needle capable of decreasing extrusion pressure cutting allowance of tubing or hollow section | |
| CN100579710C (en) | Method for producing angle pin casing tube | |
| CN102974615B (en) | Rolling process method of punched lining core of steel rod | |
| CN103691862B (en) | Heavy weight drill pipe two ends junction method for upsetting | |
| CN202114165U (en) | Bicycle head tube double-expansion processing machine | |
| CN203091455U (en) | Dummy block capable of reducing cutting quantity of bar extrusion butt | |
| CN100571915C (en) | The manufacturing process of large conic roller blank | |
| CN201423271Y (en) | Bulking machine | |
| CN203437410U (en) | Perforated molybdenum piercing mandrel structural assembly | |
| CN202893856U (en) | Seamless tubular product extrusion device | |
| CN203437440U (en) | Seamless square tube extrusion die | |
| CN201389574Y (en) | Composite precision extrusion die for perforating charge cartridge case blank | |
| CN202753388U (en) | Extruding die for transforming pipe thickness online | |
| CN105666038A (en) | Preparing method of TiAl-based alloy honeycomb structure | |
| CN201625695U (en) | Phi 351 steel pipe bending die | |
| CN206122532U (en) | Can realize stamping die of many materials | |
| CN202207889U (en) | Highly efficient processing system of tappet of seamless steel pipe puncher | |
| CN1431061A (en) | Method of manufacturing internal thread of sleeve by use of hot extrusion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20181225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |