CN208944873U - A kind of inner rotating-shuttle roundness shaping tooling - Google Patents
A kind of inner rotating-shuttle roundness shaping tooling Download PDFInfo
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- CN208944873U CN208944873U CN201821494051.4U CN201821494051U CN208944873U CN 208944873 U CN208944873 U CN 208944873U CN 201821494051 U CN201821494051 U CN 201821494051U CN 208944873 U CN208944873 U CN 208944873U
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- shuttle
- mold insert
- inner rotating
- slider
- embedding piece
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Abstract
The utility model relates to the shaping essence school post-processings of handware processing, more particularly to a kind of inner rotating-shuttle roundness shaping tooling, its technical solution is, including cope plate, middle template, lower template, there is the embedding piece groove placed to shaping shuttle frame in lower template, the shape of embedding piece groove and the shape of inner rotating-shuttle are corresponding, front-slider and rear slider are additionally provided in lower template, front-slider and rear slider are respectively placed in the both sides of embedding piece groove, it and is semicircular opening against the side of embedding piece groove on front-slider, side on rear slider against embedding piece groove is also semicircular opening, mold insert and upper mold core are provided on cope plate, mold insert is embedded in upper mold core, its position of mold insert on cope plate is corresponding with the mold insert groove location of lower template.
Description
Technical field
The utility model relates to the shaping essence school post-processings of handware processing, and in particular to a kind of inner rotating-shuttle roundness shaping
Tooling.
Background technique
Inner rotating-shuttle is one of important component of sewing machine, at present produce inner rotating-shuttle technique mainly have machining and
Metal injection moulding, since inner rotating-shuttle is small in size, structure is complicated, and to required precision height, and mechanical processing technique manufactures rotating shuttle
Process flow is long when interior shuttle, and manufacturing procedure is complicated, and full-scale precision is difficult to ensure.So to prepare inner rotating-shuttle subsequent for machining
It needs further to finish and is just able to satisfy size requirement, finish machining equipment investment is big, at high cost, the production cycle is long, leads at this stage
Rotating shuttle manufacturer is wanted to start to make inner rotating-shuttle using Metal Injection Molding.
Metal powder injection molded is the new forming technique rapidly developed in the world in recent years, it is advantageous that energy
It is enough that the product for originally needing multiple tracks tradition machining processes to shape is once-forming by injection molding, and each position of product is close
Degree uniformly, is had excellent performance.
Metal powder injection molded general process flow is uniformly to mix fine metal powder with organic binder
As the substance with rheological characteristic, using the injection of advanced injector there is the die cavity of part shape to form blank, new technology is de-
Except binder and through oversintering, its high compaction is made to become metal product.
But metal injection moulding, due to having sintering step in forming process, due to gravity, resistance, injection internal stress with
And reasons, the inner rotating-shuttle such as expand with heat and contract with cold unavoidably also will appear deformation, such as inner rotating-shuttle product circularity in sintering process
Deformation in terms of verticality.And inner rotating-shuttle is to need and high-speed rotation after the assembly such as shuttle race moon circle, the size of some assembly
And circularity, concentricity and the vertical all unusual key of product.So needing to carry out the inner rotating-shuttle of metal forming whole
Shape.
Utility model content
The utility model is in order to solve the deformation of inner rotating-shuttle production process, especially in metal forming technology production process
The deformation of inner rotating-shuttle, design studies have gone out a kind of novel inner rotating-shuttle roundness shaping tooling.
A kind of inner rotating-shuttle roundness shaping tooling of the utility model, scheme is, including cope plate, middle template, lower die
Plate has the embedding piece groove placed to shaping inner rotating-shuttle in lower template, and the shape of embedding piece groove and the shape of inner rotating-shuttle are corresponding, under
Front-slider and rear slider are additionally provided in template, front-slider and rear slider are respectively placed in the both sides of embedding piece groove, and on front-slider
It is semicircular opening against the side of embedding piece groove, the side of opposite embedding piece groove is also semicircular opening, upper mold on rear slider
Mold insert and upper mold core are provided on plate, mold insert is embedded in upper mold core, the mold insert of the mold insert on cope plate its position and lower template
Groove location is corresponding.
Another preferred embodiment of the utility model is, the mold insert of upper mold be using wolfram steel material, the specific trade mark be YG6 or
YG8。
Another preferred embodiment of the utility model is that have core bore in middle template, and size and shape and mold insert are adapted, work
When making, upper mold core and mold insert pass through the core bore of middle template.
Another preferred embodiment of the utility model is, there are two shutter in lower template, shutter is that protrusion place is flat
The cylinder in face has the circular hole for accepting shutter in the corresponding position of middle template.
The utility model can efficiently solve inner rotating-shuttle deformation because of caused by sintering.Under normal conditions, due to gold
Belonging to injection molding process has limitation, and by injection internal stress influence, inner rotating-shuttle inner hole has ovalizing deflection, size after sintering
The very poor reachable 0.2mm of diameter；And be to meet inner rotating-shuttle job stability requirement, inner rotating-shuttle hole size tolerance need to control
Within 0.1mm.So increasing critical size (such as ovality) smart alignment shape after the completion of sintering process.This tooling is using whole
Body shaping technique can guarantee that guide rail outer diameter, diameter of bore, the multiple critical sizes of inner hole ovality once reach requirement simultaneously；Together
When upper mold core take wolfram steel material, the tooling service life can be effectively improved, avoid between metal and metal friction occur drawing scratch it is outer
Sight problem；Traditional cylinder structure is substituted using locking block structure, the stability and one of shaping size can be improved in sliding block uniform force
Cause property.
Detailed description of the invention
Fig. 1 is the overall diagram of the utility model inner rotating-shuttle roundness shaping tooling.
Fig. 2 is middle formwork structure schematic diagram
Fig. 3 is lower template structural schematic diagram
Fig. 4 is to shaping inner rotating-shuttle structural schematic diagram.
Specific embodiment
The utility model in order to better understand, preferred embodiments of the present invention presented below, in conjunction with attached drawing 1-4
The utility model is further described, but the protection scope of the utility model is not limited in these preferred embodiments.
Embodiment
Attached drawing 1-4 is the preferred implementation formula structure chart of the present embodiment, in above-mentioned attached drawing 1-4, component corresponding to label
Title is as follows: 1, cope plate；2, middle template；3, to the inner rotating-shuttle product of shaping；4, lower template, 5, latch segment, 6, latch segment
Slide way mechanism, 7, dial pearl screw, 8, limit pull rod, 9, upper mold core, 10, upper mold core mold insert, 11, front-slider, 12, spring, 13, open
Close device, 14, lower die mold insert, 15, rear slider, 16, to the interior shuttle inner hole of shaping, 17, to the interior shuttle inner bottom surface of shaping, 18, to whole
The interior shuttle guide rail outer diameter of shape, 19, to the interior shuttle guide rail of shaping, 20, to the interior outer drive spindle of shaping, 21, to the interior shuttle guide rail of shaping
Upper plane.
According to Fig. 1-4, the inner rotating-shuttle roundness shaping tooling of the present embodiment, including cope plate 1, middle template 2, lower template 4,
There is the embedding piece groove 14 that can be placed to shuttle 3 in shaping in lower template, the shape of embedding piece groove and the shape of inner rotating-shuttle are corresponding, lower die
Front-slider 11 and rear slider 15 are additionally provided on plate, front-slider and rear slider are respectively placed in the both sides of embedding piece groove, and front-slider
The upper side against embedding piece groove is semicircular opening, and the side of opposite embedding piece groove is also semicircular opening on rear slider, on
Upper mold core mold insert 10 and upper mold core 9 are provided in template, mold insert 10 is embedded in upper mold core 9, its position of the mold insert in upper mold with
The mold insert groove location of lower die is corresponding.There is core bore on middle mould, size and shape and 10 shape of mold insert are adapted；When work, middle mould
Plate retrogressing, upper mold core 9 and mold insert 10 protrude from the core bore of middle mould.There are two shutter 13 in lower die, shutter 13 is protrusion
The cylinder of place plane has the circular hole for accepting shutter in the corresponding position of middle mould.
Before shaping, this tooling upper mold lower die is fixed on press, and tooling is in the open state, is put into product to lower die mold insert
Slot 14 is positioned by product guide rail 19 to guarantee the consistency for being put into product space.
Molding: press pushes, and cope plate and middle template move downward, and upper mold core wolfram steel mold insert 10 is made to be inserted into product inner hole 16
Push down product inner bottom surface 17；Latch segment downward pressure acts on 15 rear ramped surface of front-slider 11 and rear slider, front-slider 11 simultaneously
With the uniformly inwardly movement of rear slider 15, inward pressure stepless action is in interior outer drive spindle 20 and product guide rail outer diameter 18；It is advancing slip simultaneously
Block 11 and rear slider 15 are acted on plane 21 on product guide rail by downward clamping pressure.
Die sinking: cope plate moves upwards, and is detached from first with middle template, is fixed on the upper mold core 9 and upper mold core in cope plate
Wolfram steel mold insert 10 and cope plate move upwardly together disengaging product；Frictional resistance and lower die of the middle template 2 due to two shutters 13
Plate 4 is temporarily not separated, cope plate moves upwards reach certain position after be fixed on 8 stress of limit pull rod of cope plate, act on
In middle template, middle template 2 and lower template 4 are pulled open；Middle template stress moves upwards, be fixed on middle template latch segment move upwards through
Latch segment slide way mechanism is converted into sliding block and moves out, and front-slider 11 and rear slider 15 are opened, it is convenient to take out product.
Upper mold core wolfram steel mold insert 10 is inlayed on 9 head of upper mold core, the wear-resisting service life that shaping tooling can be improved of wolfram steel mold insert,
Light is less prone to the problems such as surface is pulled after product inner hole shaping.
Front-slider 11 is basic consistent with product shape with the design of the shape of rear slider 15, can effectively correct product outer diameter 20
With the circularity of product guide rail outer diameter 18.
Each achievable upper mold core 9 of position movement of tooling is first extracted then front-slider 11 and rear slider 15 out and is produced after skidding off when shaping
Product can just be taken out.This tooling realizes the sequencing of die sinking movement by the structure of middle template 2, shutter 13 and pull rod 8.
12 acting slider of spring skids off, and causes product that cannot smoothly take out to avoid spring failure sliding block from not skidding off, preceding
Slide way mechanism 6 is set on sliding block 11, rear slider 15 and latch segment 5, and latch segment can be by slide way mechanism 6 in addition when enabling to be opened
Sliding block out.
There is deformation in product guide level, if sliding block, which is slid horizontally into, is easy crowded injured labour product guide pass.This tooling is in sliding block
Bottom design is mounted with that is dialled a pearl screw 7, and a kind of steel ball adds the mechanism of spring, and steel ball is against slider bottom, acts sliding block
Become up micro- lift and slides into then pushing.
Internal diameter outer diameter, guide rail outer diameter of this tooling in addition to having corrected product, while plane 21 on sliding block die pressing product guide rail, on
The flatness and the depth of parallelism of 10 die pressing product inner bottom surface of mould wolfram steel mold insert 17 rectifiable product bottom surface and guide rail.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (4)
1. a kind of inner rotating-shuttle roundness shaping tooling, including cope plate, middle template, lower template, characterized in that put in lower template
The embedding piece groove to shaping inner rotating-shuttle is set, the shape of embedding piece groove and the shape of inner rotating-shuttle are corresponding, are additionally provided in lower template
Front-slider and rear slider, front-slider and rear slider are respectively placed in the both sides of embedding piece groove, and against the one of embedding piece groove on front-slider
Side is semicircular opening, and the side of opposite embedding piece groove is also semicircular opening on rear slider, is provided with mold insert on cope plate
And upper mold core, mold insert are embedded in upper mold core, its position of the mold insert on cope plate is corresponding with the mold insert groove location of lower template.
2. inner rotating-shuttle roundness shaping tooling according to claim 1, characterized in that the mold insert of cope plate is wolfram steel material
Mold insert.
3. inner rotating-shuttle roundness shaping tooling according to claim 1, characterized in that have core bore, size in middle template
It is adapted with shape and mold insert, when work, upper mold core and mold insert pass through the core bore of middle template.
4. inner rotating-shuttle roundness shaping tooling according to claim 1, characterized in that there are two opening and closings in lower template
Device, shutter are the cylinder of plane where protrusion, have the circular hole for accepting shutter in the corresponding position of middle template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821494051.4U CN208944873U (en) | 2018-09-12 | 2018-09-12 | A kind of inner rotating-shuttle roundness shaping tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821494051.4U CN208944873U (en) | 2018-09-12 | 2018-09-12 | A kind of inner rotating-shuttle roundness shaping tooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208944873U true CN208944873U (en) | 2019-06-07 |
Family
ID=66737772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821494051.4U Active CN208944873U (en) | 2018-09-12 | 2018-09-12 | A kind of inner rotating-shuttle roundness shaping tooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208944873U (en) |
-
2018
- 2018-09-12 CN CN201821494051.4U patent/CN208944873U/en active Active
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