CN110341142A - A kind of easily demoulding automobile parts injection mold - Google Patents
A kind of easily demoulding automobile parts injection mold Download PDFInfo
- Publication number
- CN110341142A CN110341142A CN201910651538.1A CN201910651538A CN110341142A CN 110341142 A CN110341142 A CN 110341142A CN 201910651538 A CN201910651538 A CN 201910651538A CN 110341142 A CN110341142 A CN 110341142A
- Authority
- CN
- China
- Prior art keywords
- cover half
- vertical
- machine frame
- injection mold
- fixedly connected
- 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.)
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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
- B29C45/40—Removing or ejecting moulded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
Abstract
The present invention relates to automobile fitting mold art fields, and disclose a kind of easily demoulding automobile parts injection mold, including board, the bottom of board is fixedly connected with machine frame, the top center position of board, which is bolted, is equipped with the first cover half, the second cover half is provided with below first cover half, the outside top fixing sleeve of second cover half is connected to upper sealing shroud, third cover half is provided with below second cover half, third cover half is fixedly mounted on the inside of machine frame by mounting rack, the outside top fixing sleeve of third cover half is connected to the next sealing shroud, there are two vertical cylinders for the inside fixed installation of machine frame, the two sides of the bottom of machine frame have been bolted to connection servo motor, the output shaft of two servo motors runs through the bottom of machine frame and the bottom end of corresponding vertical cylinder.The easily demoulding automobile parts injection mold, changes the initial thrust mode of traditional liftout attachment, carries out classification demoulding, thus the case where effectively preventing excessive thrust from moulding being caused to damage.
Description
Technical field
The present invention relates to automobile fitting mold correlative technology field, specially a kind of easily demoulding automobile parts injection mold.
Background technique
Automobile parts are processed using Shooting Technique, the processing efficiency of automobile parts are greatly improved, in vapour
When vehicle accessory is molded, the dynamic model of equipment is detached from after cover half, needs to eject moulding using thimble, so that injection molding
Part is detached from cover half inner sidewall, is taken convenient for operator, in order to which the injection molding of equipment next step produces, but it is existing
Automobile fitting injection mold when moulding is ejected, generally directly apply strength disposably ejected, this ejection
Stripping means easily cause the damage of moulding, and it is easier that jacking block leads to demoulding failure there is a situation where stuck or thrust is insufficient,
Therefore inventor devises a kind of easily demoulding automobile parts injection mold, to reduce damage of the automobile fitting mold when being produced
Hurt rate.
Summary of the invention
Solve the problems, such as automobile parts injection mold carry out using when be not easy to be demoulded.
A kind of easily demoulding automobile parts injection mold, including board, the bottom of the board are fixedly connected with machine frame,
The top center position of the board, which is bolted, is equipped with the first cover half, is provided with second below first cover half
Cover half, the outside top fixing sleeve of second cover half are connected to upper sealing shroud, are provided with third below second cover half
Cover half, third cover half are fixedly mounted on the inside of machine frame by mounting rack, and the outside top fixing sleeve of the third cover half is connected to
The next sealing shroud, the inside of the machine frame are fixedly mounted there are two vertical cylinder, and the two sides of the bottom of the machine frame are solid by bolt
Surely it is connected with servo motor, the output shaft of two servo motors runs through the bottom of machine frame and the bottom of corresponding vertical cylinder
One end, the output shaft end of two servo motors pass through shaft coupling and are fixedly connected with vertical polished rod, and two described vertical
Top one end of polished rod passes through the inner cavity top that bearing base is movably connected in corresponding vertical cylinder, two vertical lights respectively
External screw thread is offered on bar, the fixation of the external thread section of two vertical polished rods is interspersed, and there are two stop collars, described in two sections
It is threaded with ball nut on external screw thread, two opposite sides of the vertical cylinder offer Vertical movements slot, and two
The inside of the Vertical movements slot is connected with flexible connection block, two flexible connection blocks respectively with corresponding rolling
Pearl nut is fixedly connected, and is fixedly connected between two left and right sides for being flexibly connected block opposite side and the second cover half
Connecting plate, the lower surface of two connecting plates are fixedly connected to connecting column, between the bottom end of two connecting columns
It is fixedly connected with lateral pressure plate, the inside bottom middle position of the machine frame is fixedly installed with hydraulic cylinder, the laterally pressure
The upper surface two sides of plate are fixedly connected to pressure seat, and the two sides of the bottom of the third cover half are fixedly connected to pressure switch,
Two pressure seats are located at the surface of two pressure switches, and the hydraulic telescopic rod top of the hydraulic cylinder is fixedly connected
There is vertical mandril, top one end of the vertical mandril runs through lateral pressure plate and extends to the top of lateral pressure plate, described
Top one end of vertical mandril is fixedly connected with jacking block, and the jacking block is located on the inside of the bottom opening slot of third cover half, the machine
Control panel is fixedly installed on the right side of frame.
Preferably, the connection relationship between the control panel and pressure switch and servo motor is to be electrically connected, control
Panel can control the switch and operating status of pressure switch and servo motor, and two servo motors are synchronous operation shape
State, the connection relationship between the pressure switch and hydraulic cylinder are to be electrically connected, and pressure switch can control the switch of hydraulic cylinder
And operating status.
Preferably, two vertical cylinders are symmetrical set about the center of machine frame, the connecting plate of the second cover half two sides,
Ball nut and flexible connection block are symmetrical arranged about the second cover half.
Preferably, the matching relationship being flexibly connected between block and corresponding Vertical movements slot inner sidewall is matched for gap
It closes, the matching relationship between the vertical mandril and lateral pressure plate is clearance fit.
Preferably, the distance of the telescopic rod top end of hydraulic cylinder to lateral pressure plate is greater than the height that external screw thread is opened up.
Preferably, the inner bottom surface flush of the top surface of the jacking block and third cover half.
Preferably, second cover half is matched by reaching transition between upper sealing shroud and the first cover half inner bottom surface
Conjunction relationship, third cover half, which passes through, reaches transition fit relationship between the next sealing shroud and the second cover half inner bottom surface.
Compared with prior art:
(1), easily demoulding automobile parts injection mold, by the first cover half of setting, the second cover half, third cover half, upper
Sealing shroud and the next sealing shroud cooperate, and when the device is in use, lead to respectively between the first cover half, the second cover half and third cover half
It crosses upper sealing shroud and the next sealing shroud is mutually linked, ensure its stability cooperated between each other, traditional monoblock type is determined
Mould is split, and convenient for the mutual demoulding between the first cover half, the second cover half and third cover half, changes traditional liftout attachment
Initial thrust mode carries out classification demoulding, thus the case where effectively preventing excessive thrust from moulding being caused to damage.
(2), easily demoulding automobile parts injection mold, by the way that vertical cylinder, servo motor, vertical polished rod, work is arranged
Dynamic link block, connecting plate, lateral pressure plate, pressure switch and it is hydraulic change one's profession to cooperate, when the device is in use, pass through control plane
Plate starts servo motor, so that the output shaft of two servo motors passes through shaft coupling respectively and vertical polished rod is driven to be rotated, from
And external screw thread is made to drive ball nut carry out activity, ball nut drives the block carry out activity that is flexibly connected, so that two activities
Link block drives the second cover half to carry out activity upwards by connecting plate respectively, and the bottom of the second cover half is detached from third cover half, so that
The bottom of moulding is detached from third cover half, carries out level-one demoulding, up to ball nut activity to externally threaded top position
It sets, stop collar limits it, and the second cover half activity at this time is to extreme position, and the top for the seat that presses at this time carries out pressure switch
Pressure, pressure switch control hydraulic cylinder are started, and the hydraulic telescopic rod of hydraulic cylinder pushes vertical mandril, so that vertically
Mandril pushes jacking block, until the top surface of jacking block and the bottom surface contact of moulding and the ejection upwards that presses, so that note
Plastic is detached from by Double-ejection and the second cover half, greatly reduces damage ratio of the moulding when being demoulded.
(3), the easily demoulding automobile parts injection mold is cooperated by setting pressure switch and hydraulic cylinder,
Equipment in use, pressure switch be pressed seat pressure so that the hydraulic telescopic rod of hydraulic cylinder is pushed, restored in equipment
When injection molding, the top separating pressure for the seat that presses is switched, so that hydraulic cylinder carries out retracted for clearance under the control of pressure switch, is replied
To initial position, in order to the operation of the injection step of equipment.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structure enlargement diagram at A in Fig. 1；
Fig. 3 is schematic diagram of the present invention.
In figure: 1 board, 2 machine frames, 3 first cover half, 4 second cover half, 5 upper sealing shrouds, 6 third cover half, 7 the next sealings
Set, 8 vertical cylinders, 9 servo motors, 10 vertical polished rods, 11 external screw threads, 12 stop collars, 13 Vertical movements slots, 14 be flexibly connected blocks,
15 connecting plates, 16 connecting columns, 17 lateral pressure plates, 18 hydraulic cylinders, 19 pressure seats, 20 pressure switches, 21 vertical mandrils, 22 tops
Block, 23 control panels, 24 ball nuts.
Specific embodiment
As shown in Figure 1-3, the present invention provides a kind of technical solution: a kind of easily demoulding automobile parts injection mold, packet
Board 1 is included, the bottom of board 1 is fixedly connected with machine frame 2, and the top center position of board 1, which is bolted, is equipped with first
Cover half 3, the lower section of the first cover half 3 are provided with the second cover half 4, and the outside top fixing sleeve of the second cover half 4 is connected to upper sealing shroud
5, the lower section of the second cover half 4 is provided with third cover half 6, and third cover half 6 is fixedly mounted on the inside of machine frame 2 by mounting rack, the
The outside top fixing sleeve of three cover half 6 is connected to the next sealing shroud 7, and the second cover half 4 passes through in upper sealing shroud 5 and the first cover half 3
Reach transition fit relationship between side bottom surface, third cover half 6 passes through the next sealing shroud 7 and 4 inside bottom table of the second cover half
Reach transition fit relationship between face, there are two vertical cylinders 8 for the inside fixed installation of machine frame 2, and the two sides of the bottom of machine frame 2 pass through
Bolt is fixedly connected with servo motor 9, the output shaft of two servo motors 9 run through machine frame 2 bottom and corresponding vertical cylinder 8
Bottom end, the output shaft end of two servo motors 9 passes through shaft coupling and is fixedly connected with vertical polished rod 10, and two are vertical
Top one end of polished rod 10 passes through the inner cavity top that bearing base is movably connected in corresponding vertical cylinder 8, two vertical lights respectively
Offering external screw thread 11 on bar 10,11 sections of the external screw thread of two vertical polished rods 10 is fixed interspersed there are two stop collar 12, and two
It is threaded with ball nut 24 on section external screw thread 11, two opposite sides of vertical cylinder 8 offer Vertical movements slot 13,
The inside of two Vertical movements slots 13 be connected be flexibly connected block 14, two flexible connection blocks 14 respectively with it is corresponding
Ball nut 24 is fixedly connected, and two are flexibly connected fixed between the left and right side of block 14 opposite side and the second cover half 4 connect
It is connected to connecting plate 15, the lower surface of two connecting plates 15 is fixedly connected to connecting column 16, and two vertical cylinders 8 are about machine frame 2
Center is symmetrical set, and connecting plate 15, ball nut 24 and the flexible connection block 14 of 4 two sides of the second cover half are about the second cover half
4 are symmetrical arranged, and are fixedly connected with lateral pressure plate 17 between the bottom end of two connecting columns 16, in the inside bottom of machine frame 2
Between position be fixedly installed with hydraulic cylinder 18, the distance of telescopic rod top end to the lateral pressure plate 17 of hydraulic cylinder 18 is greater than external screw thread 11
The height opened up, the upper surface two sides of lateral pressure plate 17 are fixedly connected to pressure seat 19, the two sides of the bottom of third cover half 6
It is fixedly connected to pressure switch 20, two pressure seats 19 are located at the surface of two pressure switches 20, hydraulic cylinder 18
Hydraulic telescopic rod top is fixedly connected with vertical mandril 21, and top one end of vertical mandril 21 is run through lateral pressure plate 17 and extended
To the top of lateral pressure plate 17, top one end of vertical mandril 21 is fixedly connected with jacking block 22, is flexibly connected block 14 and opposite
Answering the matching relationship between 13 inner sidewall of Vertical movements slot is clearance fit, matching between vertical mandril 21 and lateral pressure plate 17
Conjunction relationship is clearance fit, the inner bottom surface flush of the top surface of jacking block 22 and third cover half 6, and jacking block 22 is located at the
On the inside of the bottom opening slot of three cover half 6, the right side of machine frame 2 is fixedly installed with control panel 23, control panel 23 and pressure switch
Connection relationship between 20 and servo motor 9 is to be electrically connected, and control panel 23 can control pressure switch 20 and servo motor 9
Switch and operating status, two servo motors 9 be synchronous operation state, the connection between pressure switch 20 and hydraulic cylinder 18 is closed
To be electrically connected, pressure switch 20 can control the switch and operating status of hydraulic cylinder 18 for system.
When the device is in use, servo motor 9 is started by control panel 23, so that the output shaft of two servo motors 9 point
Vertical polished rod 10 is not driven to be rotated by shaft coupling, so that external screw thread 11 drives 24 carry out activity of ball nut, rolling
Pearl nut 24, which drives, is flexibly connected 14 carry out activity of block, so that two flexible connection blocks 14 drive second by connecting plate 15 respectively
Cover half 4 carries out upward activity, and the bottom of the second cover half 4 is detached from third cover half 6 so that the bottom of moulding and third cover half 6 into
Row is detached from, and carries out level-one demoulding, until the apical position of external screw thread 11 is arrived in 24 activity of ball nut, stop collar 12 limits it,
Extreme position is arrived in second cover half, 4 activity at this time, and the top for the seat 19 that presses at this time presses to pressure switch 20, pressure switch
20 control hydraulic cylinders 18 are started, and the hydraulic telescopic rod of hydraulic cylinder 18 pushes vertical mandril 21, so that vertical mandril
21 pairs of jacking blocks 22 push, until the top surface of jacking block 22 and the bottom surface contact of moulding and the ejection upwards that presses, so that
Moulding is detached from by Double-ejection and the second cover half 4, and when equipment carries out restoring injection molding, the top of pressure seat 19 is detached from pressure
Power switch 20 is returned to initial position so that hydraulic cylinder 18 carries out retracted for clearance under the control of pressure switch 20, in order to set
The operation of standby injection step.
Claims (7)
1. a kind of easily demoulding automobile parts injection mold, including board (1), it is characterised in that: the bottom of the board (1)
It is fixedly connected with machine frame (2), the top center position of the board (1), which is bolted, to be equipped with the first cover half (3), described
It is provided with below first cover half (3) the second cover half (4), the outside top fixing sleeve of second cover half (4) is connected to upper close
Big envelope (5) is provided with third cover half (6) below second cover half (4), and third cover half (6) passes through mounting rack and is fixedly mounted
Outside top fixing sleeve in the inside of machine frame (2), the third cover half (6) is connected to the next sealing shroud (7), the machine frame (2)
Inside be fixedly mounted there are two vertical cylinder (8), the two sides of the bottom of the machine frame (2) have been bolted to connection servo electricity
Machine (9), the output shaft of two servo motors (9) run through the bottom of machine frame (2) and the bottom one of corresponding vertical cylinder (8)
End, the output shaft end of two servo motors (9) passes through shaft coupling and is fixedly connected with vertical polished rod (10), described in two
Top one end of vertical polished rod (10) passes through the inner cavity top that bearing base is movably connected in corresponding vertical cylinder (8) respectively, and two
It is offered external screw thread (11) on a vertical polished rod (10), external screw thread (11) Duan Jungu of two vertical polished rods (10)
There are two interting calmly stop collar (12), ball nut (24) are threaded on two sections of external screw threads (11), described in two
The vertical opposite side of cylinder (8) offers Vertical movements slot (13), and the inside of two Vertical movements slots (13) is movable
It is connected with and is flexibly connected block (14), two flexible connection blocks (14) are fixed with corresponding ball nut (24) respectively to be connected
It connects, is fixedly connected with and connect between two flexible connections block (14) opposite side and the left and right side of the second cover half (4)
The lower surface of plate (15), two connecting plates (15) is fixedly connected to connecting column (16), two connecting columns (16)
It is fixedly connected between bottom end lateral pressure plate (17), the inside bottom middle position of the machine frame (2) is fixedly installed with
The upper surface two sides of hydraulic cylinder (18), the transverse direction pressure plate (17) are fixedly connected to pressure seat (19), the third cover half
(6) two sides of the bottom are fixedly connected to pressure switch (20), and two pressure seats (19) are located at two pressure switches
(20) surface, the hydraulic telescopic rod top of the hydraulic cylinder (18) are fixedly connected with vertical mandril (21), the vertical top
Top one end of bar (21) runs through lateral pressure plate (17) and extends to the top of lateral pressure plate (17), the vertical mandril
(21) top one end is fixedly connected with jacking block (22), and the jacking block (22) is located on the inside of the bottom opening slot of third cover half (6),
Control panel (23) are fixedly installed on the right side of the machine frame (2).
2. a kind of easily demoulding automobile parts injection mold according to claim 1, it is characterised in that: the control plane
Connection relationship between plate (23) and pressure switch (20) and servo motor (9) is to be electrically connected, and control panel (23) can be controlled
Pressing pressure switchs the switch and operating status of (20) and servo motor (9), and two servo motors (9) are synchronous operation shape
State, the connection relationship between the pressure switch (20) and hydraulic cylinder (18) are to be electrically connected, and pressure switch (20) can control
The switch and operating status of hydraulic cylinder (18).
3. a kind of easily demoulding automobile parts injection mold according to claim 1, it is characterised in that: two described vertical
Straight tube (8) is symmetrical set about the center of machine frame (2), the connecting plate (15), ball nut (24) of the second cover half (4) two sides
It is symmetrical arranged with block (14) are flexibly connected about the second cover half (4).
4. a kind of easily demoulding automobile parts injection mold according to claim 1, it is characterised in that: the activity is even
Connecing the matching relationship between block (14) and corresponding Vertical movements slot (13) inner sidewall is clearance fit, the vertical mandril (21)
Matching relationship between lateral pressure plate (17) is clearance fit.
5. a kind of easily demoulding automobile parts injection mold according to claim 1, it is characterised in that: the hydraulic cylinder
(18) distance of telescopic rod top end to lateral pressure plate (17) is greater than the height that external screw thread (11) are opened up.
6. a kind of easily demoulding automobile parts injection mold according to claim 1, it is characterised in that: the jacking block
(22) the inner bottom surface flush of top surface and third cover half (6).
7. a kind of easily demoulding automobile parts injection mold according to claim 1, it is characterised in that: described second is fixed
Mould (4) is by reaching transition fit relationship, third cover half between upper sealing shroud (5) and the first cover half (3) inner bottom surface
(6) by reaching transition fit relationship between the next sealing shroud (7) and the second cover half (4) inner bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651538.1A CN110341142B (en) | 2019-07-18 | 2019-07-18 | Auto-parts injection mold convenient to drawing of patterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651538.1A CN110341142B (en) | 2019-07-18 | 2019-07-18 | Auto-parts injection mold convenient to drawing of patterns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110341142A true CN110341142A (en) | 2019-10-18 |
| CN110341142B CN110341142B (en) | 2021-04-02 |
Family
ID=68179174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910651538.1A Active CN110341142B (en) | 2019-07-18 | 2019-07-18 | Auto-parts injection mold convenient to drawing of patterns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110341142B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012981A (en) * | 2021-11-09 | 2022-02-08 | 华勤技术股份有限公司 | Method and system for molding appearance product by using double-color mold |
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| CN204505692U (en) * | 2014-12-14 | 2015-07-29 | 宁国市日格美橡塑制品有限公司 | A kind of can the injection mold of automatic demoulding |
| CN205112300U (en) * | 2015-10-24 | 2016-03-30 | 苏州奇杰自动化设备有限公司 | Flat plastic drawing of patterns platform |
| CN205685670U (en) * | 2016-06-21 | 2016-11-16 | 青岛牧野集团有限公司 | A kind of secondary ejection mold with fork ejecting structure |
| CN208615242U (en) * | 2018-08-15 | 2019-03-19 | 河北科力汽车零部件有限公司 | A kind of molding die convenient for being demoulded with internal buckle muscle moulding |
| CN208962394U (en) * | 2018-10-17 | 2019-06-11 | 天津常春汽车零部件有限公司 | A kind of ejecting structure of automotive trim mold |
| CN209036873U (en) * | 2018-09-03 | 2019-06-28 | 江门市科华电器有限公司 | A kind of injection mold convenient for modulus |
| CN109954862A (en) * | 2019-04-02 | 2019-07-02 | 浙江朝日减振器有限公司 | A kind of damping end cap machining die |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1514470A1 (en) * | 1987-12-11 | 1989-10-15 | G Pt Exi Litejnogo Mash Orglit | Die-casting mould for pressure casting |
| JPH0671657A (en) * | 1992-08-27 | 1994-03-15 | Kuraray Co Ltd | Method and apparatus for removing optical disk base plate |
| JPH09174594A (en) * | 1995-12-25 | 1997-07-08 | Nippon Plast Co Ltd | Manufacture of thermoplastic resin product having skin material |
| DE19632507A1 (en) * | 1996-08-13 | 1998-02-19 | Hasco Normalien Hasenclever Co | Plastics processing mould, especially an injection mould, with ejector inserts |
| CN204036778U (en) * | 2014-08-09 | 2014-12-24 | 林南平 | Be convenient to the injection mold of the demoulding |
| CN204505692U (en) * | 2014-12-14 | 2015-07-29 | 宁国市日格美橡塑制品有限公司 | A kind of can the injection mold of automatic demoulding |
| CN205112300U (en) * | 2015-10-24 | 2016-03-30 | 苏州奇杰自动化设备有限公司 | Flat plastic drawing of patterns platform |
| CN205685670U (en) * | 2016-06-21 | 2016-11-16 | 青岛牧野集团有限公司 | A kind of secondary ejection mold with fork ejecting structure |
| CN208615242U (en) * | 2018-08-15 | 2019-03-19 | 河北科力汽车零部件有限公司 | A kind of molding die convenient for being demoulded with internal buckle muscle moulding |
| CN209036873U (en) * | 2018-09-03 | 2019-06-28 | 江门市科华电器有限公司 | A kind of injection mold convenient for modulus |
| CN208962394U (en) * | 2018-10-17 | 2019-06-11 | 天津常春汽车零部件有限公司 | A kind of ejecting structure of automotive trim mold |
| CN109954862A (en) * | 2019-04-02 | 2019-07-02 | 浙江朝日减振器有限公司 | A kind of damping end cap machining die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114012981A (en) * | 2021-11-09 | 2022-02-08 | 华勤技术股份有限公司 | Method and system for molding appearance product by using double-color mold |
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| Publication number | Publication date |
|---|---|
| CN110341142B (en) | 2021-04-02 |
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