CN205571180U - Nonrust steel mold is used to 200 kilometers motor car carriage skeletons of speed per hour - Google Patents
Nonrust steel mold is used to 200 kilometers motor car carriage skeletons of speed per hour Download PDFInfo
- Publication number
- CN205571180U CN205571180U CN201620377473.8U CN201620377473U CN205571180U CN 205571180 U CN205571180 U CN 205571180U CN 201620377473 U CN201620377473 U CN 201620377473U CN 205571180 U CN205571180 U CN 205571180U
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- Prior art keywords
- matrix
- lower mold
- ejector
- pressing body
- material pressing
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Abstract
The utility model provides a nonrust steel mold is used to 200 kilometers motor car carriage skeletons of speed per hour, including die holder, upper die base, the setting ejector rod and the pressure material body of setting on the upper die base in the die holder, the die holder is provided with the lower mould turn -ups around cavity opening lower mould base member up end and inserts including the middle lower mould base member that has the cavity, and the up end equipartition is inserted to the lower mould turn -ups has the balanced cushion of a plurality of, evenly be provided with the spacing post of a plurality of on being located the cavity lateral wall of same horizontal plane lower mould base member, both ends are provided with rectangle direction breach around the lower mould base member, and the four corners position of lower mould base member up end all is provided with the stroke stopper and deposits the stopper, the beneficial effects of the utility model are that: the utility model discloses simple structure, convenient to use has not only reduced manufacturing cost, improves the machining precision and the yield of motor car panel brace moreover, because can one shot forming, having improved machining efficiency, can meet the need of market well.
Description
Technical field
This utility model relates to a kind of motor train compartment skeleton processing technique field, particularly relates to a kind of motor train compartment skeleton
Stainless steel mould, particularly to a kind of Speed 200 km/h motor train compartment skeleton stainless steel mould.
Background technology
China's motor train unit train is divided into three big ranks, be respectively as follows: speed per hour 250 kilometers and above EMU thereof, time
Speed is the middling speed EMUs of 160 kilometers and 200 kilometers, and speed per hour 140 kilometers and following low speed EMUs.Each rank
It is different that compartment skeleton requires, current China compartment skeleton column processing mold can not one-shot forming, in-convenience in use,
And machining accuracy is inadequate, working (machining) efficiency is low, it is impossible to well meet the market demand.
Utility model content
The purpose of this utility model is the Speed 200 km/h providing a kind of one-shot forming, machining accuracy is high and efficiency is high
Motor train compartment skeleton stainless steel mould.
This utility model is realized by following measure: a kind of Speed 200 km/h motor train compartment skeleton stainless steel mold
Tool, including die shoe, upper bolster, the ejector being arranged in described die shoe and the material pressing body being arranged on described upper bolster；
Described die shoe includes the middle lower mold matrix with cavity, around lower mold matrix upper end described in described cavity hatch
Face is provided with lower mold flange insert, and described lower mold flange insert upper surface is evenly equipped with several balance cushion blocks；It is positioned at same level
Being evenly arranged with several limited posts on the cavity wall of lower mold matrix described in face, before and after described lower mold matrix, two ends are provided with
Rectangle guides breach, and the corner location of described lower mold matrix upper surface is provided with stroke limit block and deposits limited block；
Described ejector includes ejector matrix and ejector flange insert, and described ejector matrix includes integrated
The outer that inner panel is peripheral with being arranged on described inner panel, described ejector flange insert is fixed on the upper surface of described inner panel；Institute
State the limited post that is also symmetrically arranged with on ejector matrix lateral wall with described upper mold matrix with the use of stopper slot；Described top
Several location-plates through described ejector flange insert it are provided with on part device matrix；
Described upper bolster includes the upper mold matrix with cavity, is provided with upper mold flange edge in the cavity of described upper mold matrix
Block；The lower surface of described upper mold matrix rear and front end be provided with described lower mold matrix guide breach with the use of rectangle
Guiding projection；It is positioned on the cavity wall of lower mold matrix described in same level and is evenly arranged with several limited posts；Under described
The end face upper periphery of mould flange insert is evenly arranged with balance cushion block；
Described material pressing body includes integrated material pressing body matrix, and the lower surface of described material pressing body matrix is provided with binder
Body flange insert, described material pressing body matrix includes that, with cavity and integrated base plate, described material pressing body flange insert is fixed
In the cavity of described base plate, described ejector matrix lateral wall is also symmetrically arranged with the limited post with described upper mold matrix and joins
Close the stopper slot used；The lower surface of described upper bolster is symmetrically arranged with two nitrogen springs, the piston rod of described nitrogen spring
It is connected with the upper surface of described material pressing body；
The limited post of described ejector is arranged in the stopper slot of described die shoe, and the limited post of described material pressing body is arranged on
In the stopper slot of described upper bolster；Described die shoe is fixed on press lower platform, the push rod that described press lower platform is arranged
Lower surface through described die shoe with described ejector is connected；Described upper bolster is fixed on press upper mounting plate.
Wherein, described upper mold matrix, described lower mold matrix, described ejector matrix and described material pressing body matrix are by casting
Form；Described upper mold flange insert, described lower mold flange insert, described material pressing body flange insert and described ejector flange insert
Profile processed by numerically controlled processing equipment.
It is positioned on the cavity wall of lower mold matrix described in same level and is evenly arranged with several guide plates, described head part
The guide plate corresponding with the guide plate position of described die shoe cavity wall it is evenly arranged with on device matrix lateral wall；
It is positioned on the cavity wall of lower mold matrix described in same level and is evenly arranged with several guide plates, described binder
The guide plate corresponding with the guide plate position of described lower mold matrix cavity wall it is provided with on the sidewall of body matrix；
It is provided with guide plate on the sidewall of described guiding breach；Be provided with on described guiding projection with on described guiding breach
Guide plate corresponding to guide plate position.
Be positioned on the sidewall of lower mold matrix rear and front end described in described guiding breach both sides be all symmetrically arranged with upper end with
The connecting plate of bolt hole, by being connected through the bolt of described bolt hole with described lower mold matrix on described upper mold matrix.
It is positioned at the bottom even of described cavity inside described upper mold flange insert and is provided with pier reality cushion block；It is positioned at described lower mold
Outside flange insert, the bottom surface of described lower mold matrix cavity is evenly arranged with pier reality cushion block.
The beneficial effects of the utility model are: this utility model simple in construction, easy to use, not only reduce and produce into
This, and improve machining accuracy and the yield rate of motor train compartment column, due to can one-shot forming, improve working (machining) efficiency, energy
Enough meet the market demand well.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment.
Fig. 2 is the structural representation of die shoe in this utility model embodiment.
Fig. 3 is the structural representation of ejector in this utility model embodiment.
Fig. 4 is the structural representation of upper bolster in this utility model embodiment.
Fig. 5 is the structural representation of material pressing body in this utility model embodiment.
Wherein, reference is: 1, upper bolster；2, material pressing body；3, nitrogen spring；4, blank material；5, die shoe；6, head part
Device；7, push rod；8, guide plate；9, guiding projection；10, pier reality cushion block；11, balance cushion block；12, limited post；13, upper mold flange edge
Block；14, material pressing body flange insert；15, stopper slot；16, lower mold flange insert；17, push-rod hole；18, location-plate；19, stroke
Limited block；20, breach is guided；21, connecting plate；22, balance cushion block；23, pier reality cushion block；24, limited block is deposited；25, ejector
Flange insert.
Detailed description of the invention
For the technical characterstic of this programme can be clearly described, below by detailed description of the invention, this programme is illustrated.
Seeing Fig. 1, this utility model is a kind of Speed 200 km/h motor train compartment skeleton stainless steel mould, including lower mold
Seat 5, upper bolster 1, the ejector 6 being arranged in described die shoe 5 and the material pressing body 2 being arranged on upper bolster 1；Wherein, below
The position relationship that described upper-lower position describes when (such as " upper surface " " above " or " bottom surface " etc.) is use describes.
Seeing Fig. 5, die shoe 5 includes the middle lower mold matrix with cavity and the punch being arranged on lower mold matrix, encloses
Cavity hatch lower mold matrix upper surface is provided with lower mold flange insert 16, and lower mold flange insert 16 upper surface is evenly equipped with several
Balance cushion block 22；It is positioned on the cavity wall of same level lower mold matrix and is evenly arranged with several limited posts 12, lower mold base
Before and after body, two ends are provided with rectangle and guide breach 20, and described lower mold flange insert 16 upper surface is provided with location-plate 18,
The corner location of lower mold matrix upper surface is provided with cuboid stroke limit block 19 and cylinder deposits limited block 24；Its
In, location-plate 18 is blank material 4 location parts, before mold work in upper mold flange insert 13 with ejector flange insert 25
Place blank material 4, need to position with location-plate 18, it is ensured that blank material 4 position is stable；Balance cushion block 22 be balance die shoe 5 with
Material pressing body 2 field of load, the parts of producing balanced forces area；Stroke limit block 19 is the portion being closed into the end for limiting upper/lower die
Part；Depositing limited block 24 is when mould does not uses, and damages for preventing nitrogen spring 3 from compressing stress for a long time, and its height is wanted
More than nitrogen spring 3 impulse stroke；Connecting plate 21 is that mould turns the guard block preventing reason designs such as jolting when factory transports.
Seeing Fig. 4, ejector 6 includes ejector matrix and ejector flange insert 25, and ejector matrix includes integrally becoming
The outer that the inner panel of type is peripheral with being arranged on inner panel, ejector flange is inlayed on 25 pieces of upper surfaces being fixed on inner panel；Ejector base
Also be symmetrically arranged with on external sidewall limited post 12 with upper mold matrix with the use of stopper slot 15；Arrange on ejector matrix
There are several location-plates 18；The effect of location-plate 18 is identical with the effect of the location-plate 18 of die shoe 5.
Seeing Fig. 3, upper bolster 1 includes the upper mold matrix with cavity and the die being arranged on upper mold matrix, upper mold base
Upper mold flange insert 13 it is provided with in the cavity of body；The lower surface of upper mold matrix rear and front end is provided with and the guiding of lower mold matrix
Breach 20 with the use of rectangle guiding projection 9；It is positioned on the cavity wall of same level lower mold matrix and is evenly arranged with
Several limited posts 12；The end face upper periphery of lower mold flange insert 16 is evenly arranged with balance cushion block 11；Balance cushion block 11 is flat
Weighing apparatus upper bolster 1 and ejector 6 field of load, the parts of producing balanced forces area
Seeing Fig. 2, material pressing body 2 includes integrated material pressing body matrix, and the lower surface of material pressing body matrix is provided with pressure
Material body flange insert 14, material pressing body matrix includes that, with cavity and integrated base plate, material pressing body flange insert 14 is fixed on
In the cavity of base plate, material pressing body matrix lateral wall is also symmetrically arranged with limited post 12 with described upper mold matrix with the use of
Stopper slot 15；The lower surface of upper bolster 1 is symmetrically arranged with two nitrogen springs 3, the piston rod of nitrogen spring 3 and material pressing body 2
Upper surface connects；Connecting rod in material pressing body 2 is through in the punch of upper bolster 1, it is to avoid material pressing body 2 comes off upper bolster 1.
The limited post 12 of ejector 6 is arranged in the stopper slot 15 of die shoe 5, and the limited post 12 of material pressing body 2 is arranged on
In the stopper slot 15 of die holder 1；Die shoe 5 is fixed on press lower platform, and press lower platform is provided with push rod 7, and push rod 7 passes
Die shoe 5 is connected with the lower surface of ejector 6；Upper bolster 1 is fixed on press upper mounting plate.Push rod 7 is the used press of mould
On parts, provide pressure source for ejector 6, its position performance corresponding on die shoe 5 is push rod via (i.e. push rod in figure
Through hole 17), wanting mould blank plate before upper overturning has position to place, and when material pressing body 2 pushes down product, ejector 6 energy
Sustaining pressure-plate-force, extraneous pressure source that this is accomplished by a controlled stroke, that can provide picking-up ejector 6, push rod 7 is exactly
Press transmits the most direct parts of this pressure source.
Wherein, upper mold matrix, lower mold matrix, ejector matrix and material pressing body matrix are formed by casting；Upper mold flange is inlayed
The profile of block 13, lower mold flange insert 16, material pressing body flange insert 14 and ejector flange insert 25 is by numerically controlled processing equipment
Process；The profile of upper mold flange insert 13 and the positive of material pressing body flange insert 14 are used for the interior of machining blanks material 4
Flange under side, the positive of the profile of material pressing body flange insert 14 and die shoe flange insert 16 is used for processing on outside and turns over
Limit.Wherein, nitrogen spring 3 is the pressure source of material pressing body 2, wants blank material 4 not play, warpage before die flanging, it is necessary to have
Material pressing body 2 is to 4 one pressure of blank material, and it is inadequate that this pressure depends merely on the gravity from material pressing body 2 self, and this is accomplished by more
Many extraneous pressure sources provide pressure, and nitrogen spring 3 is exactly this pressure source.Stopper slot 15 is that material pressing body 2 is transported in upper bolster 1
Dynamic stroke limit parts, material pressing body 2, under the pressure effect of gravity and nitrogen spring 3, produces displacement relative to upper bolster 1,
But material pressing body 2 move distance can not be unrestricted, restriction material pressing body 2 stroke is just played in stopper slot 15 position relative with limited post 12
Effect.
It is positioned on the cavity wall of same level lower mold matrix and is evenly arranged with several guide plates 8, ejector matrix
The guide plate 8 corresponding with guide plate 8 position of die shoe cavity wall it is evenly arranged with on lateral wall；
It is positioned on the cavity wall of same level upper mold matrix and is evenly arranged with several guide plates 8, material pressing body matrix
Sidewall on be provided with the guide plate 8 corresponding with guide plate 8 position of upper mold matrix cavity wall；The guide plate of material pressing body matrix
Between 8 guide plates 8 corresponding with on upper bolster 1, small-gap suture slides, so that in forming process between material pressing body 2 and upper bolster 1
Movement clearance, material pressing body flange insert 14 and upper mold flange insert 13 between flange gap ensure in allowed band, really
Protect product flange stable, qualified.
Guide and be provided with guide plate 8 on the sidewall of breach 20；The guiding being provided with on guiding projection 9 and guide on breach 20
The guide plate 8 that plate 8 position is corresponding.Between the guide plate 8 that two match, small-gap suture slides, thus in forming process, upper bolster 1
And the flange gap between movement clearance, upper mold flange insert 13 and lower mold flange insert 16 between die shoe 5 ensures permitting
In the range of Xuing, it is ensured that product flange is stable, qualified.
It is positioned to guide and is all symmetrically arranged with upper end with bolt hole on the sidewall of lower mold matrix rear and front end, breach 20 both sides
Connecting plate 21, by being connected through the bolt of bolt hole with lower mold matrix on upper mold matrix.
Being positioned at the bottom even of cavity inside upper mold flange insert 13 and be provided with pier reality cushion block 10, pier reality cushion block 10 is flange
The cushion block that during end-of-job, mould Guan Bi, material pressing body 2 is sturdy with upper bolster 1；It is positioned at lower mold matrix outside lower mold flange insert 16
The bottom surface of cavity is evenly arranged with pier reality cushion block 23, when pier reality cushion block 23 is flange end-of-job, mould Guan Bi ejector 6 with under
The cushion block that die holder 5 is sturdy.
Four stroke limit blocks 19 are all fixedly installed on the corner of lower mold matrix, near stroke limit block 19 lower mold matrix
On be provided with four circular grooves, deposit limited block 24 and be placed in circular groove；With stroke limit block on upper mold matrix corner
19 correspondence positions are provided with rectangle pad, and size corresponding with the circular groove on lower mold matrix on upper mold matrix corner is identical
Circular groove.
During work, ejector 6 is put in die shoe 5, and by push rod 7 jack-up, part blank material 4 is put into ejector 6 and lower mold
On seat 5, material pressing body 2, in upper bolster 1, utilizes nitrogen spring 3 to eject, and upper bolster 1 and material pressing body 2 are the most descending, material pressing body 2 with
Blank material 4 pushed down by ejector 6, and upper bolster 1 is descending, and material pressing body 2 is advanced in upper bolster 1, and blank material 4 turns over inner side edge, material pressing body 2
After top contacts with upper bolster 1, continue traveling downwardly with upper bolster 1, make ejector 2 descending, frizzled feather blank 4 outer side edges, ejector 6 times
After side contacts with die shoe 5, product molding.
The concrete motor process of mould is as follows:
The initial folding condition of mould: die shoe 5 is fixed on press lower platform, ejector 6 is by guide plate 8 and lower mold
The sliding dosing of seat 5 is put, and push rod 7 is controlled jack-up by press simultaneously, and the power of push rod 7 acts on and makes ejector 6 jack-up on ejector 6, top
Part device flange insert 25 profile flushes with lower mold flange insert 16 profile, manually blank material 4 is placed on ejector flange insert
25, with in lower mold flange insert 16, limit the placement location of blank material 4 with location-plate 18, and now lower mold original state has prepared
Finish；Upper bolster 1 is fixed on press upper mounting plate, and material pressing body 2 is put by the sliding dosing of guide plate 8 and upper bolster 1, material pressing body 2 simultaneously
By self gravitation and nitrogen spring 3 pressure effect, and being limited by side stopper slot 15, material pressing body 2 protrudes from upper bolster 1, now
Upper mold original state is ready.
2. turn-up process under mould: die shoe 5 keeps original state constant；Press upper mounting plate is controlled fortune downwards by press
OK, upper bolster 1 moves downwardly together with material pressing body 2, protrudes from upper bolster 1 during due to material pressing body 2 original state, when upper mounting plate to
Under when running to certain position, material pressing body 2 first contacts blank material 4；Hereafter upper mounting plate continues to run downwards, material pressing body 2 relative to
Moving on upper bolster 1, nitrogen spring 3 compresses, and under the pressure effect of nitrogen spring 3, material pressing body 2 is progressively compacted blank material 4, jail
Gu；When upper mold flange insert 13 contacts ejector flange insert 25, lower turn-up process starts；Upper mounting plate continues traveling downwardly, binder
Body 2 continues to move relative on upper bolster 1, and when material pressing body 2 upper surface contacts with pier reality cushion block 10, lower turn-up process terminates.
3. mould upper overturning process: at the end of lower turn-up process, material pressing body 2 is dead with upper bolster 1 pier, and relative position no longer becomes
Changing, hereafter process can be considered one motion, can be collectively referred to as upper mold；Continuing traveling downwardly along with upper mounting plate when upper mold, press upward pressure is big
In the thrust of lower section press push rod 7, upper mold oppresses ejector 6 times by upper mold flange insert 13 profile and balance cushion block 11
OK, when upper mold flange insert 13 contacts lower mold flange insert 16, upper overturning process starts.Under upper mold continues along with upper mounting plate
OK, when ejector 6 bottom surface contacts with lower mold pedestal reality cushion block 23, upper overturning process terminates.
, between each parts of upper and lower mould, no longer there is relative motion, lower mold in 4. mold closed condition: at the end of upper overturning
The stroke limit block 19 of seat 5 four jiaos contacts with corresponding upper bolster 1, and mould unitary closed, product molding completes.
This utility model can pass through or use prior art to realize without the technical characteristic described, and does not repeats them here,
Certainly, described above is not to restriction of the present utility model, and this utility model is also not limited to the example above, and this technology is led
Change that the those of ordinary skill in territory is made in essential scope of the present utility model, retrofit, add or replace, also should belong to
Protection domain of the present utility model.
Claims (4)
1. a Speed 200 km/h motor train compartment skeleton stainless steel mould, it is characterised in that include die shoe, upper bolster, set
Put the ejector in described die shoe and the material pressing body being arranged on described upper bolster；
Described die shoe includes the middle lower mold matrix with cavity, sets around lower mold matrix upper surface described in described cavity hatch
Being equipped with lower mold flange insert, described lower mold flange insert upper surface is evenly equipped with several balance cushion blocks；It is positioned at same level institute
Stating and be evenly arranged with several limited posts on the cavity wall of lower mold matrix, before and after described lower mold matrix, two ends are provided with rectangular
Shape guides breach, and the corner location of described lower mold matrix upper surface is provided with stroke limit block and deposits limited block；
Described ejector includes that ejector matrix and ejector flange insert, described ejector matrix include integrated inner panel
The outer peripheral with being arranged on described inner panel, described ejector flange insert is fixed on the upper surface of described inner panel；Described top
Also be symmetrically arranged with on part device matrix lateral wall limited post with described upper mold matrix with the use of stopper slot；Described ejector
Several location-plates through described ejector flange insert it are provided with on matrix；
Described upper bolster includes the upper mold matrix with cavity, is provided with upper mold flange insert in the cavity of described upper mold matrix；
The lower surface of described upper mold matrix rear and front end be provided with described lower mold matrix guide breach with the use of rectangle lead
To projection；It is positioned on the cavity wall of lower mold matrix described in same level and is evenly arranged with several limited posts；Described lower mold
The end face upper periphery of flange insert is evenly arranged with balance cushion block；
Described material pressing body includes integrated material pressing body matrix, the lower surface of described material pressing body matrix is provided with material pressing body and turns over
Limit insert, described material pressing body matrix includes that, with cavity and integrated base plate, described material pressing body flange insert is fixed on institute
State in the cavity of base plate, described ejector matrix lateral wall is also symmetrically arranged with the limited post with described upper mold matrix and coordinates and make
Stopper slot；The lower surface of described upper bolster is symmetrically arranged with two nitrogen springs, the piston rod of described nitrogen spring and institute
The upper surface stating material pressing body connects；
The limited post of described ejector is arranged in the stopper slot of described die shoe, and the limited post of described material pressing body is arranged on described
In the stopper slot of upper bolster；Described die shoe is fixed on press lower platform, and the push rod that described press lower platform is arranged passes
Described die shoe is connected with the lower surface of described ejector；Described upper bolster is fixed on press upper mounting plate.
Speed 200 km/h motor train compartment skeleton stainless steel mould the most according to claim 1, it is characterised in that be positioned at
Several guide plates, described ejector matrix lateral wall it is evenly arranged with on the cavity wall of lower mold matrix described in same level
On be evenly arranged with the guide plate corresponding with the guide plate position of described die shoe cavity wall；
It is positioned on the cavity wall of lower mold matrix described in same level and is evenly arranged with several guide plates, described material pressing body base
The guide plate corresponding with the guide plate position of described lower mold matrix cavity wall it is provided with on the sidewall of body；
It is provided with guide plate on the sidewall of described guiding breach；It is provided with on described guiding projection and leading on described guiding breach
To the guide plate that Board position is corresponding.
Speed 200 km/h motor train compartment skeleton stainless steel mould the most according to claim 1, it is characterised in that be positioned at
The upper end connection with bolt hole all it is symmetrically arranged with on the sidewall of lower mold matrix rear and front end described in described guiding breach both sides
Plate, by being connected through the bolt of described bolt hole with described lower mold matrix on described upper mold matrix.
Speed 200 km/h motor train compartment skeleton stainless steel mould the most according to claim 1, it is characterised in that be positioned at
Inside described upper mold flange insert, the bottom even of described cavity is provided with pier reality cushion block；It is positioned at outside described lower mold flange insert
The bottom surface of described lower mold matrix cavity is evenly arranged with pier reality cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620377473.8U CN205571180U (en) | 2016-04-29 | 2016-04-29 | Nonrust steel mold is used to 200 kilometers motor car carriage skeletons of speed per hour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620377473.8U CN205571180U (en) | 2016-04-29 | 2016-04-29 | Nonrust steel mold is used to 200 kilometers motor car carriage skeletons of speed per hour |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205571180U true CN205571180U (en) | 2016-09-14 |
Family
ID=56858549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620377473.8U Expired - Fee Related CN205571180U (en) | 2016-04-29 | 2016-04-29 | Nonrust steel mold is used to 200 kilometers motor car carriage skeletons of speed per hour |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205571180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584023A (en) * | 2017-10-10 | 2018-01-16 | 合肥常青机械股份有限公司 | A kind of automobile uses push rod multi-station mold |
-
2016
- 2016-04-29 CN CN201620377473.8U patent/CN205571180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584023A (en) * | 2017-10-10 | 2018-01-16 | 合肥常青机械股份有限公司 | A kind of automobile uses push rod multi-station mold |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20210429 |