CN202824365U - Rocker-arm type side core-pulling flat mold cylinder and punch - Google Patents
Rocker-arm type side core-pulling flat mold cylinder and punch Download PDFInfo
- Publication number
- CN202824365U CN202824365U CN 201220367850 CN201220367850U CN202824365U CN 202824365 U CN202824365 U CN 202824365U CN 201220367850 CN201220367850 CN 201220367850 CN 201220367850 U CN201220367850 U CN 201220367850U CN 202824365 U CN202824365 U CN 202824365U
- Authority
- CN
- China
- Prior art keywords
- lower bolster
- rocker
- side core
- pedestal
- dull
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 38
- 230000033001 locomotion Effects 0.000 abstract description 12
- 239000002184 metal Substances 0.000 abstract description 11
- 238000001192 hot extrusion Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model discloses a rocker-arm type side core-pulling flat mold cylinder and a punch, and belongs to the technical field of hot-extrusion red punching forming. With the adoption of a rocker arm mechanism, the vertical motion of the punch is converted to horizontal sliding of the rocker arm mechanism; a side core conducts hot extrusion on a metal section from the side of the mold cylinder; a greater metal flow is not required; a relatively complicated workpiece with a cavity mode can be formed; the torsional resistance and the tensile strength of a formed piece are high; the rejection rate is low; the production efficiency is high, the mold cylinder can be mounted on a commonly used punch for use; the investment is little; requirements of small and medium-sized enterprises on the cost can be met; and the mold cylinder and the punch further have the advantages of reliable principle and simple structure, and can be extensively popularized and applied.
Description
Technical field
The utility model relates to the red type technology that is washed into of a kind of hot extrusion, specifically, particularly relates to the dull and stereotyped mould cylinder of side core-pulling and punch press.
Background technology
The red technology of rushing is a kind of hot extrusion technique, and the structure of red stamping die is more complicated than general hot-extrusion mold, and its design feature is that the forming mode of impact style and swaging die organically combines.At present, the red technology of rushing has been widely used in the moulding of water heating product blank, and its profiled member is through heating, extruding, cooling, and metal inside crystal grain has obtained refinement, has strengthened the density of metal, has improved the part resistance to corrosion; The present red pressure that type utilizes the punch press drift that is washed into commonly used makes to be placed into the red metal that rushes the red heat state in the Huff die final molding that flows in die cavity.But along with metal flow distance is longer, its profiled member twisting resistance, tensile strength can descend, cause red rush technique can not be used for moulding need flow too large, the product that structure is too complicated.
Summary of the invention
Based on this, first purpose of the present utility model is to overcome the defective of prior art, provides a kind of rocker-arm side core-pulling dull and stereotyped mould cylinder, can not need to make metal flow too large, i.e. plastic comparatively complicated product.
Its technical scheme is as follows: the dull and stereotyped mould cylinder of a kind of rocker-arm side core-pulling comprises cope match-plate pattern, lower bolster; Also comprise at the rocker arm body between cope match-plate pattern and the lower bolster, be positioned at the buffer gear that resets below the lower bolster;
Described rocker arm body comprises side core, rocking arm, pedestal, spout and slide block; Described pedestal is fixed in lower bolster highest order below; Spout is fixed in the lower bolster upper surface, is provided with the chute parallel with lower bolster in it, and chute and slide block are slidingly matched; Rocking arm is by extending internally on the lower bolster lateral, and one end and pedestal are hinged, and the other end and slide block are hinged; Form die cavity between described slide block, spout and cope match-plate pattern, the lower bolster; Described side core is located at slider surface to the inboard of die cavity;
The described buffer gear that resets comprises spring, and described spring is pressed in the lower bolster lower surface.
The below describes further technical scheme:
Described chute cross section is inverted T shape.
Described rocking arm is L-type.
Also be provided with the slide block base that is fixedly connected with between described spout and the lower bolster.
Described pedestal comprises base plate and the hinged seat that is raised up by base plate, and rocking arm is articulated on the hinged seat.
Also comprise guiding mechanism, described guiding mechanism comprises guide pillar; Described pedestal is fixed in the lower bolster below; Described guide pillar is between base and lower bolster, and the one end is fixed, and the other end vertically inserts in the pilot hole that pedestal or lower bolster open.
Pilot hole leaves on lower bolster; Guide pillar one end is fixed on the pedestal, and the other end inserts pilot hole; Described guiding mechanism also comprises guide pin bushing; Described guide pin bushing is positioned at pilot hole, and is set on the guide pillar; And guide pillar and pedestal interference fit, guide pin bushing and lower bolster interference fit, guide pillar and guide pin bushing matched in clearance.
The described buffer gear that resets also comprises the disc base that is positioned at the pedestal below, and described pedestal is provided with spring eye, and described spring lower end is pressed on the disc base, and the upper end is passed spring eye and is pressed in the lower bolster lower surface.
Described disc base upper surface is provided with round boss, and this round boss external diameter matches with spring inside diameter.
The described buffer gear that resets also comprises the disk backstay, and described disk backstay one end is fixed in disc base, and the other end connects pedestal.
Second purpose of the present utility model is to provide a kind of punch press, comprises base plate and upper mode slider; Adopt the as the aforementioned dull and stereotyped mould cylinder of rocker-arm side core-pulling, described mould cylinder bottom is deployed on base plate, and cope match-plate pattern is fixed on the mode slider.Adopt this punch press can not need to make metal flow too large, i.e. plastic comparatively complicated product guarantees twisting resistance, the tensile strength of profiled member.
The below describes advantage or the principle of aforementioned techniques scheme:
1, when mould cylinder press work, cope match-plate pattern moves downward, and lower bolster is stressed vertically downward motion also, thereby driving spout moves downward, under the position-limiting action of spout, slide block also moves downward, because rocking arm length is fixed, when itself and slide block hinged end move downward, irremovable with the pedestal hinged end, cause rocking arm inwardly to promote slide block and in chute, slide, the slide block level is inwardly pushed, drive side core and block die cavity two ends and each branch road, spring plays cushioning effect in this process; When the cope match-plate pattern drawback movement, the elastic force rising that lower bolster is subject to spring resets, and moves upward thereby drive spout, equally, under the position-limiting action of spout, slide block also moves upward, level withdraws from backward under the effect of rocker arm body again, reaches the side core-pulling effect.By above-mentioned operation principle as can be known, the dull and stereotyped mould cylinder of rocker-arm side core-pulling of the present utility model, the metal flow distance is little, plastic comparatively complicated product, and profiled member twisting resistance tensile strength is high, and percent defective is low, and production efficiency is high.
2, the chute cross section is inverted T shape, and slide block is spacing, keeps in the upper and lower motion process of lower bolster, and slide block is also followed the lower bolster motion.
3, the rocking arm of " L " type makes the mould cylinder structure more compact so that in same space, rocking arm is followed wider that slide block moves up and down.
4, the utilization of slide block base can be changed in the course of the work easily owing to the frequent stressed slide block base that weares and teares, and the protection lower bolster, avoids the wearing and tearing of lower bolster, can also assist side core to locate more accurately simultaneously.
5, pedestal is divided into the design of base plate and hinged seat, so that whole mould cylinder structure is more stable effectively, reaches the purpose of the rate of enhancing productivity and reduce the number of rejects and seconds.
6, guiding mechanism plays guiding and restriction to the upper and lower motion of lower bolster, guarantees lower bolster for moving both vertically, the rate of reducing the number of rejects and seconds.
7, the use of guide pin bushing can make the guiding of guide pillar more smooth, is not easy to occur stuck phenomenon.
8, spring passes the spring eye on the base plate, extends to floor below, so that the effective working distance of spring is larger, reaches better buffering and reset effect.
9, the round boss that is provided with of disc base, it is inner to stretch into the spring lower end, better spring must being fixed on the disc base, and the compression direction of spring had certain guide effect.The disk backstay is further fixing to spring, guarantees that compression and the direction that resets of spring is not offset, and guarantees buffering and reset effect.
10, the dull and stereotyped mould cylinder of this rocker-arm side core-pulling can be installed on the common punch press commonly used and use, and infusion of financial resources is few, satisfies the demand of medium-sized and small enterprises.
Description of drawings
Fig. 1 is the dull and stereotyped mould cylinder structure of the described rocker-arm side core-pulling of the utility model embodiment schematic diagram;
Fig. 2 is the dull and stereotyped mould cylinder of the described rocker-arm side core-pulling of the utility model embodiment left view;
Fig. 3 is the dull and stereotyped mould cylinder of the described rocker-arm side core-pulling of the utility model embodiment top view;
Fig. 4 is the rocker arm body cutaway view;
Description of reference numerals: 1, side core, 2, rocking arm, 3, hinged seat, 4, spout, 5, slide block, 6, the slide block base, 7, cope match-plate pattern, 8, lower bolster, 9, pedestal, 10, the disk backstay, 11, guide pin bushing, 12, guide pillar, 13, spring, 14, disc base.
The specific embodiment
The below is elaborated to embodiment of the present utility model:
Shown in Fig. 1-4, the dull and stereotyped mould cylinder of a kind of rocker-arm side core-pulling comprises cope match-plate pattern 7, lower bolster 8; Also comprise at the rocker arm body between cope match-plate pattern 7 and the lower bolster 8, be positioned at the buffer gear that resets below the lower bolster 8;
Described rocker arm body comprises side core 1, rocking arm 2, pedestal 9, spout 4 and slide block 5; Described pedestal 9 is fixed in lower bolster 8 highest orders below; Spout 4 is fixed in lower bolster 8 upper surfaces, is provided with the chute parallel with lower bolster 8 in it, and chute and slide block 5 are slidingly matched; Rocking arm 2 is by extending internally on lower bolster 8 laterals, and one end and pedestal 9 are hinged, and the other end and slide block 5 are hinged; Form die cavity between described slide block 5, spout 4 and cope match-plate pattern 7, the lower bolster 8; Described side core 1 is located at slide block 5 towards the inboard of die cavity;
The described buffer gear that resets comprises spring 13, and described spring 13 is pressed in lower bolster 8 lower surfaces.
Described chute cross section is inverted T shape.
Described rocking arm 2 is L-type.
Also be provided with the slide block base 6 that is fixedly connected with between described spout 4 and the lower bolster 8.
Described pedestal 9 comprises base plate and the hinged seat 3 that is raised up by base plate, and rocking arm 2 is articulated on the hinged seat 3.
Also comprise guiding mechanism, described guiding mechanism comprises guide pillar 12; Described pedestal 9 is fixed in lower bolster 8 belows; Described guide pillar 12 is between base and lower bolster 8, and the one end is fixed, and the other end vertically inserts in the pilot hole that pedestal 9 or lower bolster 8 open.
Pilot hole leaves on lower bolster 8; Guide pillar 12 1 ends are fixed on the pedestal 9, and the other end inserts pilot hole; Described guiding mechanism also comprises guide pin bushing 11; Described guide pin bushing 11 is positioned at pilot hole, and is set on the guide pillar 12; And guide pillar 12 and pedestal 9 interference fit, guide pin bushing 11 and lower bolster 8 interference fit, guide pillar 12 and guide pin bushing 11 matched in clearance.
The described buffer gear that resets also comprises the disc base 14 that is positioned at pedestal 9 belows, and described pedestal 9 is provided with spring eye, and described spring 13 lower ends are pressed on the disc base 14, and the upper end is passed spring 13 holes and is pressed in lower bolster 8 lower surfaces.
Described disc base 14 upper surfaces are provided with round boss, and this round boss external diameter matches with spring 13 internal diameters; The described buffer gear that resets also comprises disk backstay 10, and described disk backstay 10 1 ends are fixed in disc base 14, and the other end connects pedestal 9.
The dull and stereotyped mould cylinder working of the rocker-arm side core-pulling of present embodiment flow process is:
During punching press, cope match-plate pattern 7 moves downward, and lower bolster 8 is stressed vertically downward motion also, thereby driving spout 4 moves downward, under the position-limiting action of spout 4, slide block 5 also moves downward, because rocking arm 2 length are fixed, when itself and slide block 5 hinged ends move downward, irremovable with pedestal 9 hinged ends, cause rocking arm 2 inwardly to promote slide block 5 and in chute, slide, slide block 5 levels are inwardly pushed, drive side core 1 and block die cavity two ends and each branch road, spring 13 plays cushioning effect in this process; When cope match-plate pattern 7 drawback movement, the elastic force rising that lower bolster 8 is subject to spring 13 resets, and moves upward thereby drive spout 4, equally, under the position-limiting action of spout 4, slide block 5 also moves upward, level withdraws from backward under the effect of rocker arm body again, reaches the side core-pulling effect.
Present embodiment has following advantage:
1, the dull and stereotyped mould cylinder of this rocker-arm side core-pulling, the metal flow distance is little, plastic comparatively complicated product, and profiled member twisting resistance tensile strength is high, and percent defective is low, and production efficiency is high.
2, the chute cross section is inverted T shape, and slide block 5 is spacing, keeps in the lower bolster 8 upper and lower motion processes, and slide block 5 is also followed lower bolster 8 motions.
3, the rocking arm 2 of " L " type makes the mould cylinder structure more compact so that in same space, rocking arm 2 is followed wider that slide block 5 moves up and down.
4, the utilization of slide block base 6 can be changed in the course of the work easily owing to the frequent stressed slide block base 6 that weares and teares, and protection lower bolster 8, avoids the wearing and tearing of lower bolster 8, can also assist side core to locate more accurately simultaneously.
5, pedestal 9 is divided into the design of base plate and hinged seat 3, so that whole mould cylinder structure is more stable effectively, reaches the purpose of the rate of enhancing productivity and reduce the number of rejects and seconds.
6, guiding mechanism plays guiding and restriction to the upper and lower motion of lower bolster 8, guarantees lower bolster 8 for moving both vertically, the rate of reducing the number of rejects and seconds.
7, the use of guide pin bushing 11 can make the guiding of guide pillar 12 more smooth, is not easy to occur stuck phenomenon.
8, spring 13 passes the spring eye on the base plate, extends to floor below, so that the effective working distance of spring 13 is larger, reaches better buffering and reset effect.
9, the round boss that is provided with of disc base 14, it is inner to stretch into spring 13 lower ends, better spring 13 must being fixed on the disc base 14, and the compression direction of spring 13 is had certain guide effect; 10 pairs of springs 13 of disk backstay are further fixing, guarantee that compression and the direction that resets of spring 13 is not offset, and guarantee buffering and reset effect.
A kind of punch press comprises base plate and upper mode slider; Adopt the dull and stereotyped mould cylinder of embodiment 1 described rocker-arm side core-pulling, described mould cylinder bottom is deployed in the base plate mesopore, and cope match-plate pattern 7 is fixed on the mode slider.
The punch press workflow of present embodiment is:
When starting punch ram, the downward punching press of upper mode slider drives cope match-plate pattern 7 stressed vertically downward motions, and remaining flow process is with embodiment 1.
Present embodiment has following advantage: the dull and stereotyped mould cylinder of the rocker-arm side core-pulling of embodiment 1 is installed on the common punch press commonly used uses, infusion of financial resources is few.And do not need to make metal flow too large, i.e. plastic comparatively complicated product guarantees twisting resistance, the tensile strength of profiled member.
The above embodiment has only expressed the specific embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (10)
1. the dull and stereotyped mould cylinder of rocker-arm side core-pulling comprises cope match-plate pattern, lower bolster; It is characterized in that, also comprise at the rocker arm body between cope match-plate pattern and the lower bolster, be positioned at the buffer gear that resets below the lower bolster;
Described rocker arm body comprises side core, rocking arm, pedestal, spout and slide block; Described pedestal is fixed in lower bolster highest order below; Spout is fixed in the lower bolster upper surface, is provided with the chute parallel with lower bolster in it, and chute and slide block are slidingly matched; Rocking arm is by extending internally on the lower bolster lateral, and one end and pedestal are hinged, and the other end and slide block are hinged; Form die cavity between described slide block, spout and cope match-plate pattern, the lower bolster; Described side core is located at slider surface to the inboard of die cavity;
The described buffer gear that resets comprises spring, and described spring is pressed in the lower bolster lower surface.
2. the dull and stereotyped mould cylinder of rocker-arm side core-pulling according to claim 1 is characterized in that described chute cross section is inverted T shape.
3. the dull and stereotyped mould cylinder of rocker-arm side core-pulling according to claim 1 is characterized in that described rocking arm is L-type.
4. the dull and stereotyped mould cylinder of rocker-arm side core-pulling according to claim 1 is characterized in that, also is provided with the slide block base that is fixedly connected with between described spout and the lower bolster.
5. the dull and stereotyped mould cylinder of rocker-arm side core-pulling according to claim 1 is characterized in that described pedestal comprises base plate and the hinged seat that is raised up by base plate, and rocking arm is articulated on the hinged seat.
6. the dull and stereotyped mould cylinder of rocker-arm side core-pulling according to claim 1 is characterized in that also comprise guiding mechanism, described guiding mechanism comprises guide pillar; Described pedestal is fixed in the lower bolster below; Described guide pillar is between base and lower bolster, and the one end is fixed, and the other end vertically inserts in the pilot hole that pedestal or lower bolster open.
7. the dull and stereotyped mould cylinder of rocker-arm side core-pulling according to claim 6 is characterized in that pilot hole leaves on lower bolster; Guide pillar one end is fixed on the pedestal, and the other end inserts pilot hole; Described guiding mechanism also comprises guide pin bushing; Described guide pin bushing is positioned at pilot hole, and is set on the guide pillar; And guide pillar and pedestal interference fit, guide pin bushing and lower bolster interference fit, guide pillar and guide pin bushing matched in clearance.
8. the dull and stereotyped mould cylinder of rocker-arm side core-pulling according to claim 6, it is characterized in that the described buffer gear that resets also comprises the disc base that is positioned at the pedestal below, described pedestal is provided with spring eye, described spring lower end is pressed on the disc base, and the upper end is passed spring eye and is pressed in the lower bolster lower surface.
9. the dull and stereotyped mould cylinder of rocker-arm side core-pulling according to claim 8 is characterized in that described disc base upper surface is provided with round boss, and this round boss external diameter matches with spring inside diameter; The described buffer gear that resets also comprises the disk backstay, and described disk backstay one end is fixed in disc base, and the other end connects pedestal.
10. a punch press comprises base plate and upper mode slider; It is characterized in that adopt as the dull and stereotyped mould cylinder of the described rocker-arm side core-pulling of aforementioned each claim, described mould cylinder bottom is deployed on base plate, cope match-plate pattern is fixed on the mode slider.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220367850 CN202824365U (en) | 2012-07-27 | 2012-07-27 | Rocker-arm type side core-pulling flat mold cylinder and punch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220367850 CN202824365U (en) | 2012-07-27 | 2012-07-27 | Rocker-arm type side core-pulling flat mold cylinder and punch |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202824365U true CN202824365U (en) | 2013-03-27 |
Family
ID=47936161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201220367850 Expired - Fee Related CN202824365U (en) | 2012-07-27 | 2012-07-27 | Rocker-arm type side core-pulling flat mold cylinder and punch |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202824365U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102773346A (en) * | 2012-07-27 | 2012-11-14 | 佛山市日丰企业有限公司 | Rocker type side core-pulling panel die cylinder, punch press and infrared punching thermal molding method |
CN106583370A (en) * | 2016-12-20 | 2017-04-26 | 合肥中辰轻工机械有限公司 | Self-adjustment safety fixing device for bottle washing machine |
-
2012
- 2012-07-27 CN CN 201220367850 patent/CN202824365U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102773346A (en) * | 2012-07-27 | 2012-11-14 | 佛山市日丰企业有限公司 | Rocker type side core-pulling panel die cylinder, punch press and infrared punching thermal molding method |
CN102773346B (en) * | 2012-07-27 | 2016-01-20 | 佛山市日丰企业有限公司 | The dull and stereotyped mould cylinder of rocker-arm side core-pulling and punch press |
CN106583370A (en) * | 2016-12-20 | 2017-04-26 | 合肥中辰轻工机械有限公司 | Self-adjustment safety fixing device for bottle washing machine |
CN106583370B (en) * | 2016-12-20 | 2021-07-20 | 合肥中辰轻工机械有限公司 | Self-adjusting bottle cleaning machine safety fixing device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102773346B (en) | The dull and stereotyped mould cylinder of rocker-arm side core-pulling and punch press | |
CN201900189U (en) | Riveting die | |
CN201676960U (en) | Novel high strength steel plate die structure | |
CN203437575U (en) | Floating gear finishing forging die | |
CN203185586U (en) | Mechanism avoiding friction between mold sliding block and insert | |
CN104084493B (en) | A kind of oblique punching mechanism | |
CN202824365U (en) | Rocker-arm type side core-pulling flat mold cylinder and punch | |
CN202479300U (en) | Negative angle flanging mechanism for multistage transmission vehicle door external panel | |
CN204974984U (en) | Tensioning member extruding tool utensil | |
CN106984709B (en) | Take turns shaping mould and forming method in the deburring of hood panel and C column inner panel component | |
CN206622538U (en) | A kind of modified Lifting Device | |
CN202461324U (en) | Riveting device | |
CN206492829U (en) | Automatic riveting nut mould | |
CN102974733B (en) | A kind of vehicle oil filler small door hinge axle cold upsetting die of car | |
CN215587622U (en) | Buffer device for stamping die | |
CN202114153U (en) | Stamping die with draw step structure for automotive panel | |
CN101985153B (en) | Two-half combined forging mould clamping mechanism | |
CN203418063U (en) | Cold heading chain pin head die | |
CN204657375U (en) | Cold extrusion combined die | |
CN202667529U (en) | Car oil filler wicket hinge shaft cold heading mould | |
CN210547433U (en) | Novel high-strength die structure | |
CN202061973U (en) | Discontinuous and apocoptic structure of semiconductor hard alloy lead frame stamping die pushing block | |
CN203245260U (en) | Stretching forming die with arc faces connected | |
CN203664485U (en) | Bending die with rolling ejection rod | |
CN203091529U (en) | Engine oil tube bracket forming die |
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: 20130327 Termination date: 20200727 |
|
CF01 | Termination of patent right due to non-payment of annual fee |