CN110341142B - Auto-parts injection mold convenient to drawing of patterns - Google Patents
Auto-parts injection mold convenient to drawing of patterns Download PDFInfo
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- CN110341142B CN110341142B CN201910651538.1A CN201910651538A CN110341142B CN 110341142 B CN110341142 B CN 110341142B CN 201910651538 A CN201910651538 A CN 201910651538A CN 110341142 B CN110341142 B CN 110341142B
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- fixed die
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- fixedly connected
- machine frame
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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
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- 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 invention relates to the technical field of automobile parts moulds, and discloses an automobile part injection mould convenient for demoulding, which comprises a machine table, wherein the bottom of the machine table is fixedly connected with a machine frame, a first fixed die is fixedly arranged at the middle position of the top of the machine table through a bolt, a second fixed die is arranged below the first fixed die, an upper sealing sleeve is fixedly sleeved at the top of the outer side of the second fixed die, a third fixed die is arranged below the second fixed die, the third fixed die is fixedly arranged at the inner side of the machine frame through an installation frame, a lower sealing sleeve is fixedly sleeved at the top of the outer side of the third fixed die, two vertical cylinders are fixedly arranged at the inner side of the machine frame, servo motors are fixedly connected to two sides of the bottom of the machine frame through bolts, and output shafts of the two servo motors penetrate through the bottom of the. This auto-parts injection mold convenient to drawing of patterns has changed traditional ejecting device's initial thrust mode, carries out the drawing of patterns in grades to the effectual condition that prevents too much thrust and cause the injection molding damage takes place.
Description
Technical Field
The invention relates to the related technical field of automobile accessory molds, in particular to an automobile accessory injection mold convenient for demolding.
Background
Auto-parts uses injection molding process to carry out the processing production, great improvement auto-parts's machining efficiency, when auto-parts are moulded plastics, after the movable mould of equipment breaks away from the cover half, need use the thimble to carry out ejecting with the injection molding, make the injection molding break away from with the cover half inside wall, be convenient for operating personnel to take it, so that the production of moulding plastics on equipment next step, but current auto-parts injection mold is when ejecting with the injection molding, generally once ejecting for directly exerting the brute force, the damage of injection molding is easily caused to this kind of ejecting drawing of patterns mode, and easily make the kicking block take place the card die or the thrust is not enough leads to the condition of drawing of patterns failure, therefore the inventor has designed an auto-parts injection mold convenient to the drawing of patterns, reduce the damage rate of auto-parts mould when carrying out production.
Disclosure of Invention
The problem of auto-parts injection mold be not convenient for carry out the drawing of patterns when using is solved.
An automobile part injection mold convenient for demolding comprises a machine table, wherein a machine frame is fixedly connected to the bottom of the machine table, a first fixed die is fixedly arranged at the middle position of the top of the machine table through bolts, a second fixed die is arranged below the first fixed die, an upper sealing sleeve is fixedly sleeved at the top of the outer side of the second fixed die, a third fixed die is arranged below the second fixed die and fixedly installed on the inner side of the machine frame through an installation frame, a lower sealing sleeve is fixedly sleeved at the top of the outer side of the third fixed die, two vertical cylinders are fixedly installed on the inner side of the machine frame, servo motors are fixedly connected to two sides of the bottom of the machine frame through bolts, output shafts of the two servo motors penetrate through the bottom of the machine frame and one end of the bottom of the corresponding vertical cylinder, and vertical polished rods are fixedly connected to the tail ends of the output shafts of the two servo motors through, one end of the top of each of the two vertical polish rods is movably connected to the top of the inner cavity of the corresponding vertical cylinder through a bearing base, external threads are arranged on each of the two vertical polish rods, two limit rings are fixedly inserted into the external thread sections of the two vertical polish rods, ball nuts are respectively and threadedly connected to the two external threads, vertical movable grooves are arranged on the opposite sides of the two vertical cylinders, movable connecting blocks are movably connected to the inner sides of the vertical movable grooves, the two movable connecting blocks are fixedly connected with the corresponding ball nuts, connecting plates are fixedly connected between the opposite sides of the two movable connecting blocks and the left and right sides of the second stationary mold, connecting columns are fixedly connected to the lower surfaces of the two connecting plates, a transverse pressing plate is fixedly connected between one ends of the bottoms of the two connecting columns, and a hydraulic cylinder is fixedly mounted at the middle position of the bottom of the inner side of, the utility model discloses a hydraulic press mould, including the first cover half, the first upper surface both sides equal fixedly connected with of horizontal clamp plate seat of exerting pressure, the bottom both sides equal fixedly connected with pressure switch of third cover half, two the seat of exerting pressure is located two pressure switch respectively under, the hydraulic telescoping rod top fixedly connected with perpendicular ejector pin of pneumatic cylinder, the top one end of perpendicular ejector pin is run through horizontal clamp plate of exerting pressure and is extended to the top of horizontal clamp plate of exerting pressure, the top one end fixedly connected with kicking.
Preferably, the connection relationship between the control panel and the pressure switch and between the control panel and the servo motors is electrically connected, the control panel can control the on-off and operation states of the pressure switch and the servo motors, the two servo motors are in synchronous operation states, the connection relationship between the pressure switch and the hydraulic cylinder is electrically connected, and the pressure switch can control the on-off and operation states of the hydraulic cylinder.
Preferably, two the vertical cylinder sets up about the central bilateral symmetry of frame, and connecting plate, ball nut and the swing joint piece of second cover half both sides set up about the second cover half symmetry.
Preferably, the fit relationship between the movable connecting block and the inner side wall of the corresponding vertical movable groove is clearance fit, and the fit relationship between the vertical ejector rod and the transverse pressing plate is clearance fit.
Preferably, the distance from the top end of the telescopic rod of the hydraulic cylinder to the transverse pressing plate is greater than the height of the external thread.
Preferably, the top surface of the top block is flush with the inside bottom surface of the third stationary mold.
Preferably, the second fixed die achieves a transition fit relation with the inner bottom surface of the first fixed die through the upper sealing sleeve, and the third fixed die achieves a transition fit relation with the inner bottom surface of the second fixed die through the lower sealing sleeve.
Compared with the prior art:
(1) this auto-parts injection mold convenient to drawing of patterns, through setting up first cover half, the second cover half, the third cover half, upper seal cover and lower seal cover are mutually supported, when equipment uses, first cover half, link up each other through upper seal cover and lower seal cover between second cover half and the third cover half respectively, guarantee its stability of mutually supporting, carry out the split with traditional integral cover half, be convenient for first cover half, the drawing of patterns each other between second cover half and the third cover half, traditional ejecting device's initial thrust mode has been changed, carry out the drawing of patterns in grades, thereby the effectual condition that prevents too much thrust and cause the injection molding damage takes place.
(2) The automobile accessory injection mold convenient for demolding is characterized in that a vertical cylinder, a servo motor, a vertical polished rod, movable connecting blocks, a connecting plate, a transverse pressing plate, a pressure switch and hydraulic pressure changing are arranged and matched with each other, when the device is used, the servo motor is started through a control panel, output shafts of two servo motors drive the vertical polished rod to rotate through a coupler respectively, so that an external thread drives a ball nut to move, the ball nut drives the movable connecting blocks to move, the two movable connecting blocks drive a second fixed die to move upwards through the connecting plate respectively, the bottom of the second fixed die is separated from a third fixed die, the bottom of an injection molding piece is separated from the third fixed die, one-stage demolding is carried out until the ball nut moves to the top position of the external thread, a limiting ring limits the injection molding piece, and the second fixed die moves to a limiting position, and the top of the pressure application seat applies pressure to the pressure switch, the pressure switch controls the hydraulic cylinder to be started, and the hydraulic telescopic rod of the hydraulic cylinder pushes the vertical ejector rod, so that the vertical ejector rod pushes the ejector block until the top surface of the ejector block contacts with the bottom surface of the injection molding piece and applies pressure to eject upwards, so that the injection molding piece is ejected twice to be separated from the second fixed die, and the damage rate of the injection molding piece during demolding is greatly reduced.
(3) This auto-parts injection mold convenient to drawing of patterns through setting up pressure switch and pneumatic cylinder and mutually supporting, when equipment uses, pressure switch is exerted pressure by the seat of exerting pressure for the hydraulic telescoping rod of pneumatic cylinder promotes, when equipment recovers to mould plastics, and the top of the seat of exerting pressure breaks away from pressure switch, makes the pneumatic cylinder shrink under pressure switch's control and resets, restores the initial position, so that the operation of the process of moulding plastics of equipment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the present invention.
In the figure: the device comprises a machine table 1, a machine frame 2, a first fixed die 3, a second fixed die 4, an upper sealing sleeve 5, a third fixed die 6, a lower sealing sleeve 7, a vertical cylinder 8, a servo motor 9, a vertical polish rod 10, an external thread 11, a limiting ring 12, a vertical movable groove 13, a movable connecting block 14, a connecting plate 15, a connecting column 16, a transverse pressing plate 17, a hydraulic cylinder 18, a pressing seat 19, a pressure switch 20, a vertical ejector rod 21, an ejector block 22, a control panel 23 and a ball nut 24.
Detailed Description
As shown in fig. 1-3, the present invention provides a technical solution: an automobile part injection mold convenient for demolding comprises a machine table 1, the bottom of the machine table 1 is fixedly connected with a machine frame 2, a first fixed mold 3 is fixedly installed at the middle position of the top of the machine table 1 through bolts, a second fixed mold 4 is arranged below the first fixed mold 3, an upper seal sleeve 5 is fixedly sleeved at the top of the outer side of the second fixed mold 4, a third fixed mold 6 is arranged below the second fixed mold 4, the third fixed mold 6 is fixedly installed at the inner side of the machine frame 2 through an installation frame, a lower seal sleeve 7 is fixedly sleeved at the top of the outer side of the third fixed mold 6, the second fixed mold 4 achieves a transition fit relation with the bottom surface of the inner side of the first fixed mold 3 through the upper seal sleeve 5, the third fixed mold 6 achieves a transition fit relation with the bottom surface of the inner side of the second fixed mold 4 through the lower seal sleeve 7, two vertical cylinders 8 are fixedly installed at the inner side of the machine frame 2, two sides of, the output shafts of the two servo motors 9 penetrate through the bottom of the machine frame 2 and one end of the bottom of the corresponding vertical cylinder 8, the tail ends of the output shafts of the two servo motors 9 are fixedly connected with vertical polished rods 10 through couplings, one ends of the tops of the two vertical polished rods 10 are respectively movably connected with the tops of the inner cavities of the corresponding vertical cylinders 8 through bearing bases, external threads 11 are respectively arranged on the two vertical polished rods 10, two limit rings 12 are fixedly inserted into the external thread 11 sections of the two vertical polished rods 10, ball nuts 24 are respectively and threadedly connected onto the two external threads 11, vertical movable grooves 13 are respectively arranged on the opposite sides of the two vertical cylinders 8, movable connecting blocks 14 are respectively and movably connected onto the inner sides of the two vertical movable grooves 13, the two movable connecting blocks 14 are respectively and fixedly connected with the corresponding ball nuts 24, and connecting plates 15 are fixedly connected between the opposite sides of the two movable connecting blocks 14 and the, the lower surfaces of the two connecting plates 15 are fixedly connected with connecting columns 16, the two vertical cylinders 8 are arranged in bilateral symmetry about the center of the machine frame 2, the connecting plates 15, the ball nuts 24 and the movable connecting blocks 14 on the two sides of the second fixed die 4 are arranged in symmetry about the second fixed die 4, a transverse pressing plate 17 is fixedly connected between one ends of the bottoms of the two connecting columns 16, a hydraulic cylinder 18 is fixedly installed at the middle position of the bottom of the inner side of the machine frame 2, the distance from the top end of a telescopic rod of the hydraulic cylinder 18 to the transverse pressing plate 17 is larger than the height formed by the external threads 11, pressing seats 19 are fixedly connected on the two sides of the upper surface of the transverse pressing plate 17, pressure switches 20 are fixedly connected on the two sides of the bottom of the third fixed die 6, the two pressing seats 19 are respectively positioned under the two pressure switches 20, vertical push rods 21 are fixedly connected on the top ends of the hydraulic telescopic rods of the hydraulic cylinder 18, one end of the top of the vertical ejector rod 21 is fixedly connected with an ejector block 22, a matching relationship between the movable connecting block 14 and the inner side wall of the corresponding vertical movable groove 13 is clearance fit, a matching relationship between the vertical ejector rod 21 and the transverse pressing plate 17 is clearance fit, the top surface of the ejector block 22 is flush with the bottom surface of the inner side of the third fixed die 6, the ejector block 22 is located inside a bottom opening groove of the third fixed die 6, a control panel 23 is fixedly installed on the right side of the machine frame 2, the control panel 23 is electrically connected with the pressure switch 20 and the servo motor 9, the control panel 23 can control the on-off and running states of the pressure switch 20 and the servo motor 9, the two servo motors 9 are in synchronous running state, the pressure switch 20 is electrically connected with the hydraulic cylinder 18, and the pressure switch 20 can control the on-off and running states of the hydraulic cylinder 18.
When the device is used, the servo motors 9 are started through the control panel 23, output shafts of the two servo motors 9 respectively drive the vertical polished rods 10 to rotate through the couplers, so that the external threads 11 drive the ball nuts 24 to move, the ball nuts 24 drive the movable connecting blocks 14 to move, the two movable connecting blocks 14 respectively drive the second fixed die 4 to move upwards through the connecting plates 15, the bottom of the second fixed die 4 is separated from the third fixed die 6, so that the bottom of an injection molding part is separated from the third fixed die 6, primary demolding is carried out until the ball nuts 24 move to the top end positions of the external threads 11, the limiting rings 12 limit the injection molding part, the second fixed die 4 moves to a limit position, the top of the pressure applying seat 19 applies pressure to the pressure switch 20, the pressure switch 20 controls the hydraulic cylinder 18 to be started, and the hydraulic telescopic rods of the hydraulic cylinder 18 push the vertical ejector rods 21, the vertical ejector rod 21 pushes the ejector block 22 until the top surface of the ejector block 22 contacts with the bottom surface of the injection molding piece and is pressed and ejected upwards, so that the injection molding piece is ejected twice and separated from the second fixed mold 4, when the device performs recovery injection molding, the top of the pressing seat 19 is separated from the pressure switch 20, so that the hydraulic cylinder 18 is contracted and reset under the control of the pressure switch 20 and returns to the initial position, and the operation of the injection molding process of the device is facilitated.
Claims (5)
1. The utility model provides an auto-parts injection mold convenient to drawing of patterns, includes board (1), its characterized in that: the machine comprises a machine frame (2) fixedly connected to the bottom of the machine table (1), a first fixed die (3) is fixedly arranged at the middle position of the top of the machine table (1) through bolts, a second fixed die (4) is arranged below the first fixed die (3), an upper sealing sleeve (5) is fixedly sleeved at the top of the outer side of the second fixed die (4), a third fixed die (6) is arranged below the second fixed die (4), the third fixed die (6) is fixedly arranged on the inner side of the machine frame (2) through a mounting frame, a cavity structure is formed between the first fixed die (3), the second fixed die (4) and the third fixed die (6), a lower sealing sleeve (7) is fixedly sleeved at the top of the outer side of the third fixed die (6), two vertical barrels (8) are fixedly arranged on the inner side of the machine frame (2), a servo motor (9) is fixedly connected to both sides of the bottom of the machine frame (2) through bolts, the output shafts of the two servo motors (9) penetrate through the bottom of the machine frame (2) and one end of the bottom of the corresponding vertical cylinder (8), the tail ends of the output shafts of the two servo motors (9) are fixedly connected with vertical polished rods (10) through couplers, one ends of the tops of the two vertical polished rods (10) are respectively movably connected to the tops of the inner cavities of the corresponding vertical cylinders (8) through bearing bases, external threads (11) are respectively arranged on the two vertical polished rods (10), two limiting rings (12) are fixedly inserted in the external thread (11) sections of the two vertical polished rods (10), ball nuts (24) are respectively and threadedly connected to the two external threads (11), vertical movable grooves (13) are respectively arranged on the opposite sides of the two vertical cylinders (8), and movable connecting blocks (14) are respectively and movably connected to the inner sides of the two vertical movable grooves (13), the two movable connecting blocks (14) are fixedly connected with corresponding ball nuts (24) respectively, connecting plates (15) are fixedly connected between the opposite sides of the two movable connecting blocks (14) and the left and right sides of the second fixed die (4), connecting columns (16) are fixedly connected to the lower surfaces of the two connecting plates (15), transverse pressing plates (17) are fixedly connected between one ends of the bottoms of the two connecting columns (16), a hydraulic cylinder (18) is fixedly mounted at the middle position of the bottom of the inner side of the machine frame (2), pressing seats (19) are fixedly connected to the two sides of the upper surface of each transverse pressing plate (17), pressure switches (20) are fixedly connected to the two sides of the bottom of the third fixed die (6), the two pressing seats (19) are located under the two pressure switches (20) respectively, and vertical ejector rods (21) are fixedly connected to the top ends of hydraulic telescopic rods of the hydraulic cylinders (18), one end of the top of the vertical ejector rod (21) penetrates through the transverse pressing plate (17) and extends to the upper part of the transverse pressing plate (17), one end of the top of the vertical ejector rod (21) is fixedly connected with an ejector block (22), the ejector block (22) is located on the inner side of a bottom opening groove of the third fixed die (6), and a control panel (23) is fixedly installed on the right side of the machine frame (2);
the second fixed die (4) is in transition fit with the bottom surface of the inner side of the first fixed die (3) through an upper sealing sleeve (5), and the third fixed die (6) is in transition fit with the bottom surface of the inner side of the second fixed die (4) through a lower sealing sleeve (7);
the control panel (23) is electrically connected with the pressure switch (20) and the servo motors (9), the control panel (23) can control the on-off and running states of the pressure switch (20) and the servo motors (9), the two servo motors (9) are in synchronous running states, the pressure switch (20) is electrically connected with the hydraulic cylinder (18), and the pressure switch (20) can control the on-off and running states of the hydraulic cylinder (18).
2. The automobile part injection mold facilitating demolding according to claim 1, wherein: two perpendicular section of thick bamboo (8) set up about the central bilateral symmetry of frame (2), and connecting plate (15), ball nut (24) and movable connecting block (14) of second cover half (4) both sides set up about second cover half (4) symmetry.
3. The automobile part injection mold facilitating demolding according to claim 1, wherein: the movable connecting block (14) is in clearance fit with the inner side wall of the corresponding vertical movable groove (13), and the vertical ejector rod (21) is in clearance fit with the transverse pressing plate (17).
4. The automobile part injection mold facilitating demolding according to claim 1, wherein: the distance from the top end of a telescopic rod of the hydraulic cylinder (18) to the transverse pressing plate (17) is greater than the height of the external thread (11).
5. The automobile part injection mold facilitating demolding according to claim 1, wherein: the top surface of the top block (22) is flush with the bottom surface of the inner side of the third fixed die (6).
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 |
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| CN110341142A CN110341142A (en) | 2019-10-18 |
| CN110341142B true CN110341142B (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910651538.1A Active CN110341142B (en) | 2019-07-18 | 2019-07-18 | Auto-parts injection mold convenient to drawing of patterns |
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Families Citing this family (1)
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| 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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| 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 |
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| 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 |
| 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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Patent Citations (12)
| 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 |
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