CN113306081A - Frame injection mold for aviation - Google Patents
Frame injection mold for aviation Download PDFInfo
- Publication number
- CN113306081A CN113306081A CN202110573847.9A CN202110573847A CN113306081A CN 113306081 A CN113306081 A CN 113306081A CN 202110573847 A CN202110573847 A CN 202110573847A CN 113306081 A CN113306081 A CN 113306081A
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- Prior art keywords
- groove
- block
- injection mold
- driving motor
- connecting rod
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- 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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- 238000002347 injection Methods 0.000 title claims abstract description 46
- 239000007924 injection Substances 0.000 title claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 12
- 230000033001 locomotion Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
Images
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
- B29C45/1761—Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames
-
- 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
- B29C45/1756—Handling of moulds or mould parts, e.g. mould exchanging means
-
- 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
- B29L2031/3097—Cosmonautical vehicles; Rockets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold of a rack for aviation, which comprises an upper mold frame and a lower mold frame, wherein an upper mold core is installed in the upper mold frame, a lower mold core is installed in the lower mold frame, a groove is formed in the lower mold frame, a lifting plate is connected in the groove in a sliding mode, wheels are installed at the bottom of the lifting plate, a top plate is fixedly installed at the top of the groove, and four first installation seats are fixedly installed at the bottom of the top plate. According to the invention, the second driving motor is started to rotate forwards to drive the first gear to rotate forwards, the second gear is driven to rotate backwards according to the meshing transmission principle of the latch, the rotating shaft is driven to rotate backwards, the first connecting rod is driven to rotate backwards, the lifting plate is downwards extruded through the second connecting rod to drive the lifting plate to move downwards, the wheel is in contact with the ground to support the injection mold, and at the moment, the injection mold can be pushed to be convenient to move.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an aviation rack injection mold.
Background
The injection mold is a combined mold for compression molding, extrusion molding, injection, blow molding and low-foaming molding, can process a series of plastic parts with different shapes and sizes by the coordinated change of a mold convex mold, a mold concave mold and an auxiliary molding system, is widely applied to the fields of automobile manufacturing, household appliance manufacturing, military industry and aerospace, and most support frames used in aviation are produced by the injection mold.
When the injection mold moves, the lifting ring needs to be installed on the mold and is in threaded connection with the mold, the lifting ring is lifted by a crane to move the injection mold, however, firstly, the use area of the crane is limited, when the area needing to be moved does not have the crane, the injection mold is inconvenient to move, secondly, the lifting ring is in threaded connection with the mold, the thread is easy to wear in the use process, when the injection mold is lifted by the crane, the sliding thread of the thread can lead the lifting ring to be separated from the mold, and the risk that the injection mold falls from the air is increased.
Disclosure of Invention
In order to solve the technical problems mentioned in the background art, an injection mold for an aviation frame is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a frame injection mold for aviation, includes die carrier and lower die carrier, install mould benevolence in going up the die carrier, install lower mould benevolence in the die carrier down, set up flutedly in the lower die carrier, sliding connection has the lifter plate in the recess, the wheel is installed to the lifter plate bottom, recess top fixed mounting has the roof, roof bottom fixed mounting has four first mount pads, lifter plate top fixed mounting has four second mount pads, rotate on the first mount pad and install first connecting rod, rotate on the second mount pad and install the second connecting rod, the free end of first connecting rod rotates the installation with the free end of second connecting rod, be equipped with the second actuating mechanism of drive lifter plate motion in the recess.
As a further description of the above technical solution:
the improved die comprises an upper die frame and is characterized in that a square groove is formed in the upper die frame, a moving rod is connected in the square groove in a sliding mode, a mounting groove is formed in the upper die frame, a fixing seat is fixedly mounted in the mounting groove, a moving block is connected to the fixing seat in a sliding mode, one end of the moving block is fixedly mounted with the moving rod, and a first driving mechanism for driving the moving rod to move is arranged in the mounting groove.
As a further description of the above technical solution:
the second driving mechanism comprises a second driving motor, wherein two rotating shafts are installed on the first mounting seat in a rotating mode, the rotating shafts are fixedly connected with the first connecting rods, a second driving motor is fixedly installed at the bottom of the top plate, and the second driving motor drives the rotating shafts to rotate through the transmission assembly.
As a further description of the above technical solution:
the transmission assembly comprises a second gear, the second gear is fixedly mounted on the rotating shaft, and a first gear meshed with the second gear is connected to an output shaft of the second driving motor in a transmission mode.
As a further description of the above technical solution:
first actuating mechanism includes first driving motor, fixed mounting has the fixed block in the mounting groove, fixed block bottom fixed mounting has first dead lever, rotate on the first dead lever and install the third connecting rod, motion piece one side fixed mounting has two fixed columns, two rotate between the fixed column and install the worm, motion piece one side is rotated and is installed the center pin, fixed mounting has the worm wheel of being connected with the worm meshing on the center pin, the free end fixed mounting of center pin has the turning block, fixedly connected with second dead lever on the turning block, the free end and the second dead lever of third connecting rod rotate the installation, fixed mounting has first driving motor on the fixed block, first driving motor passes through the rotation of drive part drive worm.
As a further description of the above technical solution:
the transmission part comprises a transmission shaft, a circular groove is formed in the worm, the transmission shaft penetrating through the circular groove is connected to the output shaft of the first driving motor in a transmission mode, a guide groove communicated with the circular groove is formed in the worm, and guide blocks matched with the guide groove are fixedly connected to the two sides of the transmission shaft.
As a further description of the above technical solution:
a T-shaped groove is formed in the fixing seat, and a T-shaped block matched with the T-shaped groove is fixedly connected to the bottom of the moving block.
As a further description of the above technical solution:
and a traction hook is fixedly arranged on the upper die frame.
As a further description of the above technical solution:
the T-shaped block is welded at the bottom of the motion block.
As a further description of the above technical solution:
the first driving motor is fixedly installed on the fixing block through a bolt.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the second driving motor is started to rotate forwards to drive the first gear to rotate forwards, the second gear is driven to rotate backwards according to the meshing transmission principle of the latch, the rotating shaft is driven to rotate backwards, the first connecting rod is driven to rotate backwards, the lifting plate is downwards extruded through the second connecting rod to drive the lifting plate to move downwards, the wheel is in contact with the ground to support the injection mold, and at the moment, the injection mold can be pushed to be convenient to move.
2. According to the invention, the lifting ring is placed in the square groove, the first driving motor is started to rotate forwards, the transmission shaft is driven to rotate forwards, the worm wheel is driven to rotate backwards according to the meshing transmission principle of the latch, the central shaft, the rotating block and the second fixed rod are driven to rotate backwards, the moving block is driven to reciprocate on the fixed seat through the third connecting rod, the moving rod is driven to reciprocate in the square groove, the moving rod can be driven to be inserted into the lifting ring, the first driving motor stops rotating, the worm and the worm wheel have a self-locking function, the moving rod is limited to move, and then the injection mold is lifted by using the crane.
3. According to the invention, the T-shaped groove is formed in the fixed seat, the bottom of the moving block is fixedly connected with the T-shaped block matched with the T-shaped groove, and the T-shaped groove and the T-shaped block are matched to ensure the stable movement of the moving block on the fixed seat, so that the stability of the device is improved.
Drawings
FIG. 1 illustrates an isometric view of an injection mold for an airframe provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view illustrating an injection mold for an airframe according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a first driving mechanism of an injection mold of an airframe according to an embodiment of the invention;
FIG. 4 is a schematic diagram illustrating a second driving mechanism of an injection mold of an airframe according to an embodiment of the invention;
fig. 5 is a schematic partial cross-sectional view illustrating an injection mold for an airframe according to an embodiment of the present invention.
Illustration of the drawings:
1. feeding a mold frame; 101. a square groove; 102. mounting grooves; 2. a lower die frame; 201. a groove; 3. a towing hook; 4. a first drive motor; 5. a drive shaft; 6. a fixed block; 7. a first fixing lever; 8. a third link; 9. a fixed seat; 901. a T-shaped slot; 10. a motion block; 11. a T-shaped block; 12. fixing a column; 13. a worm; 1301. a guide groove; 1302. a circular groove; 14. a worm gear; 15. a central shaft; 16. rotating the block; 17. a second fixing bar; 18. a motion bar; 19. a guide block; 20. a top plate; 21. a first mounting seat; 22. a rotating shaft; 23. a first gear; 24. a second gear; 25. a second drive motor; 26. a first link; 27. a second link; 28. a second mounting seat; 29. a lifting plate; 30. and (4) wheels.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-5, the present invention provides a technical solution: an injection mold for an aviation rack comprises an upper mold frame 1 and a lower mold frame 2, wherein an upper mold core is installed in the upper mold frame 1, a lower mold core is installed in the lower mold frame 2, a groove 201 is formed in the lower mold frame 2, a lifting plate 29 is connected in the groove 201 in a sliding manner, wheels 30 are installed at the bottom of the lifting plate 29, a top plate 20 is fixedly installed at the top of the groove 201, four first installation seats 21 are fixedly installed at the bottom of the top plate 20, four second installation seats 28 are fixedly installed at the top of the lifting plate 29, a first connecting rod 26 is rotatably installed on the first installation seats 21, a second connecting rod 27 is rotatably installed on the second installation seats 28, the free end of the first connecting rod 26 is rotatably installed with the free end of the second connecting rod 27, a second driving mechanism for driving the lifting plate 29 to move is arranged in the groove 201, the second driving mechanism comprises a second driving motor 25, a rotating shaft 22 is rotatably installed on two first installation seats 21, rotation axis 22 and first connecting rod 26 fixed connection, roof 20 bottom fixed mounting has second driving motor 25, second driving motor 25 passes through transmission assembly drive rotation axis 22 and rotates, transmission assembly includes second gear 24, fixed mounting has second gear 24 on the rotation axis 22, the transmission is connected with the first gear 23 of being connected with the meshing of second gear 24 on the output shaft of second driving motor 25, start second driving motor 25 corotation, drive first gear 23 corotation, according to the meshing transmission principle of latch, drive second gear 24 reversal, drive rotation axis 22 reversal, and then drive first connecting rod 26 reversal, extrude lifter plate 29 downwards through second connecting rod 27 and drive lifter plate 29 downstream, wheel 30 props up injection mold with ground contact, at this moment, can promote injection mold, be convenient for remove injection mold.
Referring to fig. 1-5, a square groove 101 is formed on an upper mold frame 1, a moving rod 18 is slidably connected in the square groove 101, a mounting groove 102 is formed in the upper mold frame 1, a fixing seat 9 is fixedly mounted in the mounting groove 102, a moving block 10 is slidably connected on the fixing seat 9, one end of the moving block 10 is fixedly mounted with the moving rod 18, a first driving mechanism for driving the moving rod 18 to move is arranged in the mounting groove 102, the first driving mechanism comprises a first driving motor 4, a fixing block 6 is fixedly mounted in the mounting groove 102, a first fixing rod 7 is fixedly mounted at the bottom of the fixing block 6, a third connecting rod 8 is rotatably mounted on the first fixing rod 7, two fixing columns 12 are fixedly mounted on one side of the moving block 10, a worm 13 is rotatably mounted between the two fixing columns 12, a central shaft 15 is rotatably mounted on one side of the moving block 10, a worm wheel 14 engaged with the worm 13 is fixedly mounted on the central shaft 15, a rotating block 16 is fixedly installed at the free end of the central shaft 15, a second fixing rod 17 is fixedly connected to the rotating block 16, the free end of a third connecting rod 8 is rotatably installed with the second fixing rod 17, a first driving motor 4 is fixedly installed on the fixing block 6, the first driving motor 4 drives the worm 13 to rotate through a transmission part, the transmission part comprises a transmission shaft 5, a round groove 1302 is formed in the worm 13, the transmission shaft 5 penetrating through the round groove 1302 is connected to the output shaft of the first driving motor 4 in a transmission manner, a guide groove 1301 communicated with the round groove 1302 is formed in the worm 13, guide blocks 19 matched with the guide groove 1301 are fixedly connected to two sides of the transmission shaft 5, the lifting ring is placed in the square groove 101, the first driving motor 4 is started to rotate forwards, the transmission shaft 5 is driven to rotate forwards, the worm 13 is driven to rotate forwards, the worm wheel 14 is driven to rotate backwards according to the meshing transmission principle of the clamping teeth, and further the central shaft 15 is driven to drive the central shaft 15 to rotate backwards, The rotating block 16 and the second fixing rod 17 rotate reversely, the third connecting rod 8 drives the moving block 10 to reciprocate on the fixing seat 9, the moving rod 18 is driven to reciprocate in the square groove 101, the moving rod 18 can be driven to be inserted into the hanging ring, the first driving motor 4 stops rotating, the worm 13 and the worm wheel 14 have a self-locking function, the moving rod 18 is limited to move, and then the injection mold is hung by using a crane.
Referring to fig. 1-5, a T-shaped groove 901 is formed in the fixing base 9, a T-shaped block 11 matched with the T-shaped groove 901 is fixedly connected to the bottom of the moving block 10, the T-shaped groove 901 and the T-shaped block 11 are matched to ensure stable movement of the moving block 10 on the fixing base 9, stability of the device is improved, the upper die carrier 1 is fixedly provided with a traction hook 3, the T-shaped block 11 is welded to the bottom of the moving block 10, and the first driving motor 4 is fixedly mounted on the fixing block 6 through bolts.
The working principle is as follows: moving the injection mold: when the injection mold is used, firstly, the second driving motor 25 is started to rotate forwards to drive the first gear 23 to rotate forwards, the second gear 24 is driven to rotate backwards according to the meshing transmission principle of the latch, the rotating shaft 22 is driven to rotate backwards, the first connecting rod 26 is driven to rotate backwards, the lifting plate 29 is extruded downwards through the second connecting rod 27 to drive the lifting plate 29 to move downwards, the wheel 30 is in contact with the ground to support the injection mold, and at the moment, the injection mold can be pushed to be convenient to move;
hoisting the injection mold by using a crane: when the device is used, firstly, the lifting ring is placed in the square groove 101, the first driving motor 4 is started to rotate positively, the transmission shaft 5 is driven to rotate positively, the worm 13 is driven to rotate positively, the worm wheel 14 is driven to rotate negatively according to the meshing transmission principle of the latch, the central shaft 15, the rotating block 16 and the second fixing rod 17 are driven to rotate negatively, the third connecting rod 8 drives the moving block 10 to reciprocate on the fixing seat 9, the moving rod 18 is driven to reciprocate in the square groove 101, the moving rod 18 can be driven to be inserted into the lifting ring, the first driving motor 4 stops rotating, the worm 13 and the worm wheel 14 have a self-locking function, the moving rod 18 is limited to move, and then the injection mold is lifted by using the lifting machine.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a frame injection mold for aviation, includes die carrier (1) and lower die carrier (2), install mould benevolence in going up die carrier (1), install lower mould benevolence in lower die carrier (2), its characterized in that, set up recess (201) in lower die carrier (2), sliding connection has lifter plate (29) in recess (201), wheel (30) are installed to lifter plate (29) bottom, recess (201) top fixed mounting has roof (20), roof (20) bottom fixed mounting has four first mount pads (21), lifter plate (29) top fixed mounting has four second mount pads (28), rotate on first mount pad (21) and install first connecting rod (26), rotate on second mount pad (28) and install second connecting rod (27), the free end of first connecting rod (26) rotates with the free end of second connecting rod (27) and installs, and a second driving mechanism for driving the lifting plate (29) to move is arranged in the groove (201).
2. The injection mold for the aviation frame as claimed in claim 1, wherein a square groove (101) is formed in the upper mold frame (1), the moving rod (18) is connected in the square groove (101) in a sliding manner, a mounting groove (102) is formed in the upper mold frame (1), a fixing seat (9) is fixedly mounted in the mounting groove (102), a moving block (10) is connected on the fixing seat (9) in a sliding manner, one end of the moving block (10) is fixedly mounted with the moving rod (18), and a first driving mechanism for driving the moving rod (18) to move is arranged in the mounting groove (102).
3. The airframe injection mold as defined in claim 2, wherein the second driving mechanism comprises a second driving motor (25), two of the first mounting seats (21) are rotatably mounted with a rotating shaft (22), the rotating shaft (22) is fixedly connected with a first connecting rod (26), the bottom of the top plate (20) is fixedly mounted with a second driving motor (25), and the second driving motor (25) drives the rotating shaft (22) to rotate through a transmission assembly.
4. An injection mold for an aviation frame as claimed in claim 3, wherein the transmission assembly comprises a second gear (24), the second gear (24) is fixedly mounted on the rotating shaft (22), and the output shaft of the second driving motor (25) is in transmission connection with a first gear (23) meshed with the second gear (24).
5. The airframe injection mold as defined in claim 4, wherein the first driving mechanism comprises a first driving motor (4), a fixed block (6) is fixedly installed in the mounting groove (102), a first fixing rod (7) is fixedly installed at the bottom of the fixed block (6), a third connecting rod (8) is rotatably installed on the first fixing rod (7), two fixed columns (12) are fixedly installed at one side of the moving block (10), a worm (13) is rotatably installed between the two fixed columns (12), a central shaft (15) is rotatably installed at one side of the moving block (10), a worm wheel (14) engaged with the worm (13) is fixedly installed on the central shaft (15), a rotating block (16) is fixedly installed at the free end of the central shaft (15), and a second fixing rod (17) is fixedly connected to the rotating block (16), the free end of third connecting rod (8) rotates the installation with second dead lever (17), fixed mounting has first driving motor (4) on fixed block (6), first driving motor (4) pass through drive disk assembly drive worm (13) and rotate.
6. The airframe injection mold as claimed in claim 5, wherein the transmission component comprises a transmission shaft (5), a circular groove (1302) is formed in the worm (13), the transmission shaft (5) penetrating through the circular groove (1302) is connected to an output shaft of the first driving motor (4) in a transmission manner, a guide groove (1301) communicated with the circular groove (1302) is formed in the worm (13), and guide blocks (19) matched with the guide groove (1301) are fixedly connected to two sides of the transmission shaft (5).
7. The injection mold for the aviation frame as claimed in claim 6, wherein a T-shaped groove (901) is formed in the fixed seat (9), and a T-shaped block (11) matched with the T-shaped groove (901) is fixedly connected to the bottom of the moving block (10).
8. An injection mould for an aviation frame as claimed in claim 7, wherein said upper mould frame (1) is fixedly provided with a towing hook (3).
9. An injection mould for an aviation frame according to claim 8, characterized in that the T-shaped block (11) is welded to the bottom of the moving block (10).
10. An injection mould for an aircraft frame according to claim 9, characterised in that the first drive motor (4) is fixedly mounted on the fixing block (6) by means of bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110573847.9A CN113306081A (en) | 2021-05-25 | 2021-05-25 | Frame injection mold for aviation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110573847.9A CN113306081A (en) | 2021-05-25 | 2021-05-25 | Frame injection mold for aviation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113306081A true CN113306081A (en) | 2021-08-27 |
Family
ID=77374673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110573847.9A Pending CN113306081A (en) | 2021-05-25 | 2021-05-25 | Frame injection mold for aviation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113306081A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208593026U (en) * | 2018-07-30 | 2019-03-12 | 上饶市佳兴塑胶制品有限公司 | A kind of automobile instrument panel injection mold lifting high reliablity |
| CN212076292U (en) * | 2020-04-07 | 2020-12-04 | 苏州舒而适纺织新材料科技有限公司 | Lifting mechanism for stacking textiles |
| CN212400171U (en) * | 2020-05-06 | 2021-01-26 | 青岛正工电力科技有限公司 | Injection mold for injection molding part applied to automobile cooling system |
-
2021
- 2021-05-25 CN CN202110573847.9A patent/CN113306081A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208593026U (en) * | 2018-07-30 | 2019-03-12 | 上饶市佳兴塑胶制品有限公司 | A kind of automobile instrument panel injection mold lifting high reliablity |
| CN212076292U (en) * | 2020-04-07 | 2020-12-04 | 苏州舒而适纺织新材料科技有限公司 | Lifting mechanism for stacking textiles |
| CN212400171U (en) * | 2020-05-06 | 2021-01-26 | 青岛正工电力科技有限公司 | Injection mold for injection molding part applied to automobile cooling system |
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Application publication date: 20210827 |
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| RJ01 | Rejection of invention patent application after publication |