CN104227997A - Demolding device and automobile bumper mold - Google Patents
Demolding device and automobile bumper mold Download PDFInfo
- Publication number
- CN104227997A CN104227997A CN201410435803.XA CN201410435803A CN104227997A CN 104227997 A CN104227997 A CN 104227997A CN 201410435803 A CN201410435803 A CN 201410435803A CN 104227997 A CN104227997 A CN 104227997A
- Authority
- CN
- China
- Prior art keywords
- mold
- cover half
- drag hook
- ejector
- opening mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/84—Safety devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a demolding device for separating a movable mold from a fixed mold. The demolding device comprises an ejection system and a synchronous mold opening mechanism, wherein the ejection system comprises an ejection oil cylinder, an ejector base plate, an ejector plate and a connection block; the synchronous mold opening mechanism comprises a pull hook; one end of the pull hook is fixed with the ejector plate, and the other end is fixed with the fixed mold. The invention also provides an automobile bumper mold for performing mold opening by using the demolding device. The demolding device disclosed by the invention further comprises the ejection system and the synchronous mold opening mechanism; furthermore, a section of avoiding stroke is additionally arranged on the connection block of the ejection system; when the ejection system has a fault, the synchronous mold opening mechanism can pull the ejector plate to perform ejection for a certain height, so that the safety problems such as explosion of the oil cylinder, damage to the mold and dragging of the fixed mold from an injection molding machine are solved; the demolding device is stable in structure and safe to use.
Description
Technical field
The present invention relates to bumper processing technique field, be specifically related to the stripper apparatus that uses in a kind of bumper injection mo(u)lding and automotive bumper mold.
Background technology
Along with the development of auto industry, bumper except having defencive function, also will pursue lightweight as a kind of important safety device, and in order to reach light-weighted object, the front/rear collision bumper of automobile all have employed plastics.Plastic bumper has good intensity, rigidity and ornamental, and can play cushioning effect when automobile collides, car body before and after protection.
Injection mold is divided into dynamic model and cover half two large divisions, cover half part is arranged on the fixed base plate of injection machine, dynamic model part is arranged on the mobile seat board of injection machine, during injection moulding, dynamic model, cover half two large divisions closes, plastic warp nozzle enters mold cavity, during die sinking, dynamic model, cover half two large divisions is separated, then by ejecting mechanism or mould emptier, dynamic model and cover half are separated, mostly cylinder ejector system is used in prior art, in injection moulding production process, if oil cylinder is because oil circuit is obstructed or oil cylinder self damages and can not normally eject, what ejection cylinder produced is resisted the mould opening force with injection machine by pressure, these two bursts of power antagonism will cause: (1) oil cylinder and oil pipe burst, (2) miscellaneous part on mould, as die opening mechanism damages, (3) be connected with dynamic model can not die sinking smoothly for cover half, is taken off by cover half, cause a serious accident under the effect of injection moulding machine mould open power from injection machine magnetic force template die pull-up.
Given this, the defect overcome existing for the prior art is the art problem demanding prompt solution.
Summary of the invention
The object of the invention is to the above-mentioned defect for prior art, propose a kind of stripper apparatus, solve in prior art because of the cylinder ejector system failure cause if oil cylinder explosion, burn failure, cover half are from safety issues such as injection machine pull-up holders.
The invention provides a kind of stripper apparatus, for dynamic model is separated with cover half, comprising:
Ejection system, comprises ejection cylinder, Ejector Retainer Plate, ejector retainner plate and contiguous block, and ejection cylinder is arranged on the lateral wall of dynamic model, and the piston of this ejection cylinder is connected with Ejector Retainer Plate by contiguous block, and the height of described contiguous block is greater than the thickness of described ejector retainner plate;
And
Synchronous mold-opening mechanism, comprises one end and described ejector retainner plate is fixed, the other end and described cover half are fixing drag hook; With the guide rail that described dynamic model is fixing; Described drag hook and described guide rail parallel are arranged, and described drag hook are also provided with the drag hook slide block coordinated with described guide rail.
Preferably, the drag hook of described synchronous mold-opening mechanism is provided with cavern part, and described cover half is provided with lug boss, and cavern part matches with lug boss.
Preferably, one end that described ejector retainner plate and described drag hook are fixed is provided with drag hook fixed part.
Present invention also offers a kind of automotive bumper mold, this bumper comprises long limit and lays respectively at two L shape back-offs at two ends, long limit, this L shape back-off comprises the minor face being positioned at side and the turning be connected with minor face, this automotive bumper mold comprises dynamic model, cover half, Zhi Ding, oblique top and above-mentioned stripper apparatus, and this stripper apparatus comprises synchronous mold-opening mechanism and ejection system;
Described oblique top is positioned at described Zhi Ding two ends, and the outside of described oblique top is provided with interior somatotype mold insert, and described interior somatotype mold insert matches with described L shape back-off, and the inwall of described interior somatotype mold insert is provided with pull bar, and described pull bar is through described oblique top;
Described ejection system comprises ejection cylinder, Ejector Retainer Plate, ejector retainner plate and contiguous block, and ejection cylinder is arranged on the lateral wall of dynamic model, and the piston of this ejection cylinder is connected with Ejector Retainer Plate by contiguous block, and the height of described contiguous block is greater than the thickness of described ejector retainner plate;
The drag hook that described synchronous mold-opening mechanism comprises one end and described ejector retainner plate is fixed, the other end and described cover half are fixing; With the guide rail that described dynamic model is fixing; Described drag hook and described guide rail parallel are arranged, and described drag hook are also provided with the drag hook slide block coordinated with described guide rail.
Preferably, described cover half comprises cover half fixed head, be located at described cover half fixed head under cover half die cavity, described dynamic model comprises the mould pin that dynamic mould fixing plate, the dynamic mould core coordinated with described cover half die cavity and one end are installed on described dynamic mould fixing plate; It is the bumper of injection mo(u)lding between described cover half die cavity and described dynamic mould core.
Preferably, the drag hook of described synchronous mold-opening mechanism is provided with cavern part, and described cover half is provided with lug boss, and cavern part matches with lug boss.
Preferably, described straight top and described oblique top are arranged on one end of straight push rod and angle ejector rod respectively.
Preferably, the other end of described angle ejector rod is provided with tilted footstock, and described tilted footstock is installed in the tilted footstock mounting groove of described Ejector Retainer Plate.
Compared with prior art; beneficial effect of the present invention comprises: stripper apparatus of the present invention includes ejection system and synchronous mold-opening mechanism simultaneously; and on the contiguous block of ejection system, add one section of empty avoiding stroke; when ejection system fault; synchronous mold-opening mechanism can pull ejector retainner plate to eject certain altitude; avoid oil cylinder explosion, burn failure, cover half from safety issues such as injection machine pull-up holders, Stability Analysis of Structures, use safety.Automotive bumper mold of the present invention have employed the structure that straight top adds both sides oblique top, and have employed the mode of interior somatotype at L shape back-off place, the vestige produced during production can not leak outside, and product appearance is more smooth; Meanwhile, synchronous mold-opening mechanism coordinate ejection system reach eject synchronous with die sinking, with somatotype place in guarantee insurance thick stick smoothly from the cover half demoulding.
Accompanying drawing explanation
Fig. 1 is the structural representation of the die opening state one of the stripper apparatus of the embodiment of the present invention 1;
Fig. 2 is that the structural representation of stripper apparatus shown in Fig. 1 is along A-A to sectional view;
Fig. 3 is the structural representation of the die opening state two of the stripper apparatus of the embodiment of the present invention 1;
Fig. 4 is that the structural representation of stripper apparatus shown in Fig. 2 is along B-B to sectional view;
Fig. 5 a is the part outer surface structure schematic diagram of automobile rear bumper;
Fig. 5 b is the partial structurtes schematic diagram of automobile rear bumper;
Fig. 5 c is the partial structurtes schematic diagram of somatotype die joint in the back-off of automobile rear bumper adopts;
Fig. 6 is the structural representation of the automotive bumper mold of the embodiment of the present invention 2;
Fig. 7 is the partial enlarged drawing of bumper shown in Fig. 6;
Fig. 8 is the partial enlarged drawing of bumper shown in Fig. 6.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
embodiment 1:
As shown in figures 1 and 3, the technical problem of poor stability is caused for solving prior art because of the cylinder ejector system failure, present embodiments provide a kind of stripper apparatus, comprise: ejection system 1 and synchronous mold-opening mechanism 2, wherein, ejection system 1 comprises ejection cylinder 11, Ejector Retainer Plate 12, ejector retainner plate 13 and contiguous block 14, ejection cylinder 11 is arranged on the lateral wall of dynamic model 3, the piston of ejection cylinder 11 is connected with Ejector Retainer Plate 12 by contiguous block 14, the height of contiguous block 14 is greater than the thickness of ejector retainner plate 13, the height of contiguous block 14 and the thickness difference H of ejector retainner plate 13 provide one section of empty avoiding stroke.
Figure 1 shows that the reset mode of die opening mechanism, Figure 3 shows that ejection cylinder cannot drive thimble negative moves time, synchronous mold-opening mechanism pulls the die opening state that ejector retainner plate moves.
Synchronous mold-opening mechanism 2 comprises drag hook 21, guide rail 22 and drag hook slide block 23; one end of drag hook 21 and ejector retainner plate 13 is fixing, the other end is fixing with cover half 4; guide rail 22 is fixed with dynamic model 3; drag hook 21 and guide rail 22 be arranged in parallel; drag hook slide block 23 is located on drag hook 21; and coordinate with guide rail 22, the pulling force of injection machine is slided along guide rail 22 by drag hook slide block 23, drives drag hook 21 to move up.
Particularly, refer to shown in Fig. 1 to Fig. 4, wherein, Fig. 1 and Fig. 2 is reset mode, in injection moulding production process, when ejection system 1 fault, such as, obstructed or the oil cylinder self of oil circuit damages and Ejector Retainer Plate 12 can not be driven normally to eject, what ejection cylinder 11 produced is resisted the mould opening force with injection machine by pressure, injection machine produces pulling force upwards, because the height of contiguous block 14 in the ejection system 1 of the present embodiment and the thickness difference H of ejector retainner plate 13 provide one section of empty avoiding stroke, synchronous mold-opening mechanism 2 equally can pull ejector retainner plate 13 to eject H value height, when ejector retainner plate 14 ejects H value height, as shown in Figure 3 and Figure 4, drag hook 21 and cover half 4 are thrown off completely, under the effect of injection moulding machine mould open pulling force, dynamic model 3 and cover half 4 can normally die sinkings, do not damage any part.
Further, in a preferred version of the present embodiment, the drag hook 21 of synchronous mold-opening mechanism 2 is provided with cavern part 21a, and cover half 4 is provided with lug boss 4a, and cavern part 21a matches with lug boss 4a; One end that ejector retainner plate 13 is fixed with drag hook 21 is provided with drag hook fixed part 13a.
embodiment 2:
Present embodiments provide a kind of automotive bumper mold, this bumper is automobile rear bumper, as shown in Fig. 5 a, Fig. 5 b and Fig. 5 c, this bumper comprises long limit 100 and lays respectively at two L shape back-offs 200 at two ends, long limit 100, this L shape back-off 200 comprises the minor face 201 being positioned at side and the turning 202 be connected with minor face 201, Fig. 5 c is depicted as the interior somatotype schematic diagram of this bumper L shape back-off 200, wherein S1 is traditional horizontal parting face, and S2 is the interior die joint that the mould of the present embodiment adopts.
As shown in Figure 6 to 8, the bumper of the present embodiment comprises: dynamic model 3, cover half 4, directly push up 5, the stripper apparatus of oblique top 6 and embodiment 1, the concrete structure of this stripper apparatus is see embodiment 1, repeat one by one at this, oblique top 6 is positioned at 5 two ends, straight top, and the outside of oblique top 6 is provided with interior somatotype mold insert 7, and interior somatotype mold insert 7 matches with L shape back-off 200, the inwall of interior somatotype mold insert 7 is provided with pull bar 8, and pull bar 8 is through oblique top 6.
Further, cover half 4 comprises cover half fixed head 41, be located at cover half fixed head 41 under cover half die cavity 42, be also provided with hot runner manifold 43 between cover half fixed head 41 and cover half die cavity 42; Dynamic model 3 comprises dynamic mould fixing plate 33, dynamic mould core 31 and mould pin 32, and dynamic mould core 31 coordinates with cover half die cavity 41, and one end of mould pin 32 is installed on dynamic mould fixing plate 33; It is the bumper of injection mo(u)lding between cover half die cavity 42 and dynamic mould core 31.
In addition, the straight top 5 of the present embodiment and oblique top 6 are arranged on one end of straight push rod 51 and angle ejector rod 61 respectively, wherein, the other end of angle ejector rod 61 is provided with tilted footstock 62, tilted footstock 62 is installed in the tilted footstock mounting groove 12a of Ejector Retainer Plate 12, and the volume that the space of tilted footstock mounting groove 12a is greater than tilted footstock 62 makes tilted footstock 62 have certain activity space in tilted footstock mounting groove 12a.
The automotive bumper mold of the present embodiment have employed directly top and adds the structure of both sides oblique top, and do not adopt traditional horizontal parting face at L shape back-off place, and have employed the mode of interior somatotype, the vestige produced during production can not leak outside, and product appearance is more smooth.Meanwhile, synchronous mold-opening mechanism coordinate ejection system reach eject synchronous with die sinking, with somatotype place in guarantee insurance thick stick smoothly from the cover half demoulding; In ejection system, the height of contiguous block and the thickness difference H of ejector retainner plate provide one section of empty avoiding stroke; synchronous mold-opening mechanism equally can pull ejector retainner plate to eject H value height; when ejector retainner plate ejects H value height; drag hook and cover half are thrown off completely; under the effect of injection moulding machine mould open pulling force; dynamic model and cover half can normally die sinkings, do not damage any part.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a stripper apparatus, for being separated with cover half by dynamic model, is characterized in that, comprising:
Ejection system, comprises ejection cylinder, Ejector Retainer Plate, ejector retainner plate and contiguous block, and ejection cylinder is arranged on the lateral wall of dynamic model, and the piston of this ejection cylinder is connected with Ejector Retainer Plate by contiguous block, and the height of described contiguous block is greater than the thickness of described ejector retainner plate;
And
Synchronous mold-opening mechanism, comprises one end and described ejector retainner plate is fixed, the other end and described cover half are fixing drag hook; With the guide rail that described dynamic model is fixing; Described drag hook and described guide rail parallel are arranged, and described drag hook are also provided with the drag hook slide block coordinated with described guide rail.
2. stripper apparatus according to claim 1, is characterized in that, the drag hook of described synchronous mold-opening mechanism is provided with cavern part, and described cover half is provided with lug boss, and cavern part matches with lug boss.
3. stripper apparatus according to claim 1, is characterized in that, one end that described ejector retainner plate and described drag hook are fixed is provided with drag hook fixed part.
4. an automotive bumper mold, this bumper comprises long limit and lays respectively at two L shape back-offs at two ends, long limit, this L shape back-off comprises the minor face being positioned at side and the turning be connected with minor face, it is characterized in that, described automotive bumper mold comprises the stripper apparatus described in dynamic model, cover half, Zhi Ding, oblique top and claim 1, and this stripper apparatus comprises synchronous mold-opening mechanism and ejection system;
Described oblique top is positioned at described Zhi Ding two ends, and the outside of described oblique top is provided with interior somatotype mold insert, and described interior somatotype mold insert matches with described L shape back-off, and the inwall of described interior somatotype mold insert is provided with pull bar, and described pull bar is through described oblique top;
Described ejection system comprises ejection cylinder, Ejector Retainer Plate, ejector retainner plate and contiguous block, and ejection cylinder is arranged on the lateral wall of dynamic model, and the piston of this ejection cylinder is connected with Ejector Retainer Plate by contiguous block, and the height of described contiguous block is greater than the thickness of described ejector retainner plate;
The drag hook that described synchronous mold-opening mechanism comprises one end and described ejector retainner plate is fixed, the other end and described cover half are fixing; With the guide rail that described dynamic model is fixing; Described drag hook and described guide rail parallel are arranged, and described drag hook are also provided with the drag hook slide block coordinated with described guide rail.
5. automotive bumper mold according to claim 4, it is characterized in that, described cover half comprises cover half fixed head, be located at described cover half fixed head under cover half die cavity, described dynamic model comprises the mould pin that dynamic mould fixing plate, the dynamic mould core coordinated with described cover half die cavity and one end are installed on described dynamic mould fixing plate; It is the bumper of injection mo(u)lding between described cover half die cavity and described dynamic mould core.
6. automotive bumper mold according to claim 4, is characterized in that, the drag hook of described synchronous mold-opening mechanism is provided with cavern part, and described cover half is provided with lug boss, and cavern part matches with lug boss.
7. automotive bumper mold according to claim 4, is characterized in that, described straight top and described oblique top are arranged on one end of straight push rod and angle ejector rod respectively.
8. automotive bumper mold according to claim 4, is characterized in that, the other end of described angle ejector rod is provided with tilted footstock, and described tilted footstock is installed in the tilted footstock mounting groove of described Ejector Retainer Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410435803.XA CN104227997A (en) | 2014-08-31 | 2014-08-31 | Demolding device and automobile bumper mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410435803.XA CN104227997A (en) | 2014-08-31 | 2014-08-31 | Demolding device and automobile bumper mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104227997A true CN104227997A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410435803.XA Pending CN104227997A (en) | 2014-08-31 | 2014-08-31 | Demolding device and automobile bumper mold |
Country Status (1)
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| CN (1) | CN104227997A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443670A (en) * | 2016-05-31 | 2017-12-08 | 重庆光能荣能汽车配件有限公司 | A kind of bumper for car production mould |
| CN107471564A (en) * | 2017-09-06 | 2017-12-15 | 合肥三番水处理设备有限公司 | A kind of comet type filtering material automatic demoulding processing unit (plant) |
| CN108908861A (en) * | 2016-08-31 | 2018-11-30 | 宁波方正汽车模具股份有限公司 | Stripper apparatus at radiator case lid water filling port |
| CN109822832A (en) * | 2019-04-09 | 2019-05-31 | 深圳市银宝山新科技股份有限公司 | A kind of interior division buffer bar mold |
| CN109849301A (en) * | 2018-11-20 | 2019-06-07 | 宁波方正汽车模具股份有限公司 | Drag hook protection mechanism for mold |
| CN113334690A (en) * | 2021-04-27 | 2021-09-03 | 宁波方正汽车模具股份有限公司 | Internal parting mold for automobile bumper |
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| JPH06126785A (en) * | 1992-10-19 | 1994-05-10 | Suzuki Motor Corp | Ejecting device of resin forming mold |
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| CN201895376U (en) * | 2010-07-21 | 2011-07-13 | 台州市新立模塑有限公司 | Typing mechanism in automobile bumper mould |
| CN203579954U (en) * | 2013-11-05 | 2014-05-07 | 天津国丰模具有限公司 | Synchronous die opening device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443670A (en) * | 2016-05-31 | 2017-12-08 | 重庆光能荣能汽车配件有限公司 | A kind of bumper for car production mould |
| CN108908861A (en) * | 2016-08-31 | 2018-11-30 | 宁波方正汽车模具股份有限公司 | Stripper apparatus at radiator case lid water filling port |
| CN108908861B (en) * | 2016-08-31 | 2020-07-14 | 宁波方正汽车模具股份有限公司 | Demoulding device at water injection port of automobile water tank cover |
| CN107471564A (en) * | 2017-09-06 | 2017-12-15 | 合肥三番水处理设备有限公司 | A kind of comet type filtering material automatic demoulding processing unit (plant) |
| CN109849301A (en) * | 2018-11-20 | 2019-06-07 | 宁波方正汽车模具股份有限公司 | Drag hook protection mechanism for mold |
| CN109822832A (en) * | 2019-04-09 | 2019-05-31 | 深圳市银宝山新科技股份有限公司 | A kind of interior division buffer bar mold |
| CN113334690A (en) * | 2021-04-27 | 2021-09-03 | 宁波方正汽车模具股份有限公司 | Internal parting mold for automobile bumper |
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Application publication date: 20141224 |