CN112829212A - Thread demoulding mechanism - Google Patents
Thread demoulding mechanism Download PDFInfo
- Publication number
- CN112829212A CN112829212A CN202110010668.4A CN202110010668A CN112829212A CN 112829212 A CN112829212 A CN 112829212A CN 202110010668 A CN202110010668 A CN 202110010668A CN 112829212 A CN112829212 A CN 112829212A
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- CN
- China
- Prior art keywords
- stripping
- driven wheel
- spring
- core
- threaded
- 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
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 79
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 30
- 229920003023 plastic Polymers 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000003003 spiro group Chemical group 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
- B29C45/26—Moulds
- B29C45/2618—Moulds having screw-threaded mould walls
- B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing drive means
-
- 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
- B29C45/44—Removing or ejecting moulded articles for undercut 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
- B29L2001/00—Articles provided with screw threads
-
- 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
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
Abstract
The invention provides a thread demoulding mechanism, which relates to the technical field of injection moulds and comprises a stripping mechanism, a fixed mould, a movable mould, a power mechanism and a stripping spring, wherein the power mechanism is in transmission connection with the stripping mechanism, the fixed mould is inserted in the stripping mechanism, the movable mould is arranged above the fixed mould, the bottom end of the fixed mould is abutted against one end of the stripping spring, and the other end of the stripping spring is abutted against the stripping mechanism. During the specific use, the core sets up on the cover half, and is located the die cavity of movable mould, and the fused plastics keeps the pressure after entering into the movable mould through a period, improves the organizational structure density for the preliminary shaping of product, later power unit drive take off the material mechanism and make the core rotatory withdraw from the die cavity, and leave the screw thread in the product. And finally, after the movable die is opened, the formed product is left on the fixed die, and the product is taken out. The invention has reasonable design, is firm and durable, improves the demoulding quality of bottle cap products, and solves the problem of product deformation caused by demoulding the products through the spring in the prior art.
Description
Technical Field
The embodiment of the invention relates to the technical field of injection molds, in particular to a thread demoulding mechanism.
Background
In life, bottle caps with deep threads inside are seen everywhere, almost all plastic bottles are sealed by threaded bottle caps, so that the threaded bottle caps have wide market requirements in production, most of the existing methods for producing the threaded bottle caps are manufactured by adopting injection molds, threads are manufactured by rotating cores with threads, and products are demoulded by springs.
Disclosure of Invention
To this end, embodiments of the present invention provide a threaded demolding mechanism to solve the problem of product deformation caused by demolding a product by a spring in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the utility model provides a screw thread demoulding mechanism, its characterized in that, is including taking off material mechanism, cover half, movable mould, power unit and taking off the material spring, power unit with take off the transmission of material mechanism and be connected, it is equipped with the cover half to take off to insert in the material mechanism, the top of cover half is provided with the movable mould, the bottom of cover half offsets with the one end of taking off the material spring, the other end of taking off the material spring offsets with taking off the material mechanism.
Furthermore, the stripping mechanism comprises a driven wheel fixing seat, a stripping rod fixing plate and a transmission mechanism, the power mechanism is vertically fixed on the stripping rod fixing plate, the bottom of the driven wheel fixing plate is fixed with the driven wheel fixing seat in a threaded connection mode, and the driven wheel fixing seat is provided with the stripping mechanism.
Furthermore, the transmission mechanism comprises a first-stage driven wheel, a second-stage driven wheel, a stripping rod and a mold core, the power mechanism is in transmission connection with the first-stage driven wheel, the first-stage driven wheel is in transmission connection with the second-stage driven wheels, one stripping rod is inserted in any one of the second-stage driven wheels, one end of each stripping rod is fixedly provided with the mold core, and the other end of each stripping rod is provided with a thread;
the inner hole of the secondary driven wheel is provided with a guide groove, the stripping rod is provided with a guide strip, and the guide strip is embedded in the guide groove in a sliding manner;
the first-stage driven wheel, the second-stage driven wheel and the stripping spring are all arranged on the driven wheel fixing seat.
Furthermore, one end of the mold core is fixedly connected with the stripping rod, and the other end of the mold core is provided with threads with the same specification as the stripping rod.
Further, take off the material pole fixed plate and include the fixed plate, take off material pole fixed orifices and spring fixed orifices, from the upper end and the fixed plate spiro union of driving wheel fixing base, be provided with on the fixed plate and take off the material pole fixed orifices that take off that material pole quantity is the same, it is a plurality of take off the outside of material pole fixed orifices and be provided with four spring fixed orifices.
Furthermore, the power mechanism comprises a hydraulic motor, a driving wheel and a gear fixing seat, the side face of the driven wheel fixing seat is in threaded connection with the gear fixing seat, the top end of the gear fixing seat is in threaded connection with the hydraulic motor, the hydraulic motor is in transmission connection with the driving wheel, and the driving wheel is in meshing transmission connection with the secondary driven wheel.
Further, the fixed die comprises a fixed die plate, core holes and spring grooves, one end of each stripping spring abuts against the spring grooves, the number of the spring grooves is four, a plurality of core holes are arranged in the spring grooves, and a core is inserted into any one of the core holes.
Furthermore, the movable mold comprises a mold cavity and a movable mold plate, the plurality of mold core holes correspond to the plurality of mold cavities one to one, and the plurality of mold cavities are arranged on the movable mold plate.
The embodiment of the invention has the following advantages:
the hydraulic motor drives the first-stage driven wheel and the plurality of second-stage driven wheels to synchronously rotate, the guide strip slides in the guide groove in the rotating process, so that the stripping rod can move downwards, the core is arranged on the stripping rod and is provided with threads, a complete thread structure can be formed after the core is withdrawn out of a product, the product can be effectively prevented from deforming in a mold, and the problem of product deformation caused by product demoulding through a spring in the prior art is solved while batch production is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a perspective view of a thread stripping mechanism provided by the present invention;
FIG. 2 is a moving die of a thread demoulding mechanism provided by the invention;
FIG. 3 is a fixed die of a threaded stripper mechanism provided by the present invention;
fig. 4 is a power mechanism of a thread demoulding mechanism according to the present invention;
FIG. 5 is a stripper bar of a threaded stripper mechanism provided by the present invention;
FIG. 6 is a stripping rod fixing plate of a thread stripping mechanism according to the present invention;
FIG. 7 is a driving mechanism of a thread demoulding mechanism provided by the invention;
fig. 8 is a stripping mechanism of a thread demoulding mechanism according to the present invention;
in the figure: 1 a material removing mechanism; 11, a driven wheel fixing seat; 12 a stripping rod fixing plate; 121 fixing a plate; 122 stripping rod fixing holes; 123 spring fixing holes; 13 a transmission mechanism; 131 primary driven wheels; 132 a secondary driven wheel; 133 stripping rods; a 134 core; 2, fixing the mold; 21, fixing a template; 22 core holes; 23 spring slots; 3, moving a mold; 31 a cavity; 32 moving the template; 4, a power mechanism; 41 a hydraulic motor; 42 a driving wheel; 43 a gear fixing seat; 5, stripping the material spring; 6, a guide strip; 7 guide grooves.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
As shown in fig. 1 to 8, an embodiment of the present invention provides a thread demolding mechanism, including a stripping mechanism 1, a fixed mold 2, a movable mold 3, a power mechanism 4 and a stripping spring 5, where the power mechanism 4 is in transmission connection with the stripping mechanism 1, the stripping mechanism 1 can realize product demolding, the fixed mold 2 is inserted on the stripping mechanism 1, the movable mold 3 is arranged above the fixed mold 2, and a cavity is formed between the fixed mold 2 and the movable mold 3 for injecting molten plastic to form a product. The bottom of cover half 2 offsets with the one end of taking off material spring 5, the other end of taking off material spring 5 offsets with taking off material mechanism 1, takes off material spring 5 and plays the buffering shock attenuation, the effect of supplementary mould die sinking.
According to a specific embodiment provided by the invention, the stripping mechanism 1 comprises a driven wheel fixing seat 11, a stripping rod fixing plate 12 and a transmission mechanism 13, the power mechanism 4 is vertically fixed on the stripping rod fixing plate 12, and the transmission mechanism 13 is installed on the driven wheel fixing seat 11, so that the transmission mechanism 13 is in transmission connection with the power mechanism 4. The bottom of the stripping rod fixing plate 12 is in threaded connection with the driven wheel fixing seat 11 to form a sealing structure, so that the purpose of protecting the transmission mechanism 13 is achieved.
According to a specific embodiment of the present invention, the transmission mechanism 13 includes a first-stage driven wheel 131, a second-stage driven wheel 132, a material-removing rod 133 and a core 134, the power mechanism 4 is in transmission connection with the first-stage driven wheel 131, the first-stage driven wheel 131 is in transmission connection with a plurality of second-stage driven wheels 132, so that the plurality of second-stage driven wheels 132 can rotate synchronously, further, one material-removing rod 133 is inserted into any one of the second-stage driven wheels 132, one end of the material-removing rod 133 is fixedly provided with the core 134, the outer side surface of the core 134 is provided with threads, the core 134 is of a detachable structure, so as to produce products of different specifications, and the other ends of the material-removing rods 133;
the hole of second grade driven wheel 132 is provided with guide way 7, it is provided with gib block 6 on the pole 133 to take off, gib block 6 slides the embedding in guide way 7, one-level driven wheel 131, second grade driven wheel 132 and take off material spring 5 and all set up on driven wheel fixing base 11 to play the effect of protection to driven wheel fixing base 11.
According to an embodiment of the present invention, one end of the core 134 is fixedly connected to the stripping bar 133, and the other end of the core 134 is provided with a thread having the same specification as that of the stripping bar 133. When using, the second grade is taken off driving wheel 132 and is driven the rotation of material pole 133, takes off the screw thread that the material pole 133 bottom set up and forms the screw pair with driven wheel fixing base 11, and guide way 7 is mutually supported with gib block 6 and is formed stable straight line pair, has guaranteed from this that the motion state of taking off the material pole 133 is stable, and does not exert the power and act on the product to guarantee that the product of production does not take place to warp, thereby has effectively improved the production quality of product.
According to an embodiment of the present invention, the stripping bar fixing plate 12 includes a fixing plate 121, stripping bar fixing holes 122 and spring fixing holes 123, the upper end of the driven wheel fixing base 11 is screwed to the fixing plate 121, the fixing plate 121 is provided with the same number of stripping bar fixing holes 122 as the number of stripping bars 133 so as to fix the position of the stripping bar fixing holes 122, and four spring fixing holes 123 are provided on the outer sides of a plurality of stripping bar fixing holes 122 for placing the stripping springs 5, thereby protecting the mold.
According to a specific embodiment of the present invention, the power mechanism 4 includes a hydraulic motor 41, a driving wheel 42 and a gear fixing seat 43, the side surface of the driven wheel fixing seat 11 is fixed to the gear fixing seat 43 in a threaded manner, and the top end of the gear fixing seat 43 is fixed to the hydraulic motor 41 in a threaded manner, so that the hydraulic motor 41 directly provides power for the transmission mechanism. The hydraulic motor 41 is in meshing transmission connection with the driving wheel 42, and the driving wheel 42 is in meshing transmission connection with the secondary driven wheel 132. The power mechanism 4 is connected through gear transmission, and has the advantages of stable transmission and long service life.
According to a specific embodiment provided by the invention, the fixed die 2 comprises a fixed die plate 21, core holes 22 and spring grooves 23, one end of the stripping spring 5 abuts against the spring grooves 23, the number of the spring grooves 23 is four, a plurality of core holes 22 are arranged in the four spring grooves 23, and a core 134 is inserted into any one core hole 22. The core hole 22 is internally provided with threads so as to be matched with the core 134, and after demolding is completed, the core 134 can be screwed into the core hole 22, so that the product is conveniently demolded and molded.
According to a specific embodiment of the present invention, the movable mold 3 includes a cavity 31 and a movable mold plate 32, a plurality of the core holes 22 correspond to a plurality of the cavities 31 one by one, and a plurality of the cavities 31 are disposed on the movable mold plate 32. Molten plastic is injected into the cavity 31 to form a product of a fixed shape, and when the movable die plate 32 moves, the movable die 3 is separated from the fixed die to facilitate taking out the product.
The application process of the embodiment of the invention is as follows:
the invention provides a thread demoulding mechanism, which is used specifically, firstly, molten plastic is injected into a cavity 31, pressure is maintained for a period of time, then a hydraulic motor 41 drives a transmission mechanism 13 to enable a stripping rod 133 to rotate, the stripping rod 133 and a driven wheel fixing seat 11 form a thread pair, the stripping rod 133 drives a mold core to withdraw from the cavity 31 so as to leave threads in a product, finally, the mold is opened, a moving mold moves upwards, and product injection molding is completed. The invention has reasonable design and firm structure, can effectively improve the product quality and solves the problem of product deformation caused by demoulding of the product through the spring in the prior art.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The utility model provides a screw thread demoulding mechanism, its characterized in that, including taking off material mechanism (1), cover half (2), movable mould (3), power unit (4) and taking off material spring (5), power unit (4) with take off material mechanism (1) transmission and be connected, it is equipped with cover half (2) to insert on material mechanism (1) to take off, the top of cover half (2) is provided with movable mould (3), the bottom of cover half (2) offsets with the one end of taking off material spring (5), take off the other end of material spring (5) and take off material mechanism (1) and offset.
2. The threaded demoulding mechanism according to claim 1, characterized in that the stripping mechanism (1) comprises a driven wheel fixing seat (11), a stripping rod fixing plate (12) and a transmission mechanism (13), the power mechanism (4) is vertically fixed on the stripping rod fixing plate (12), the bottom of the stripping rod fixing plate (12) is fixed with the driven wheel fixing seat (11) in a threaded manner, and the transmission mechanism (13) is installed on the driven wheel fixing seat (11).
3. The threaded demoulding mechanism according to claim 2, wherein the transmission mechanism (13) comprises a first-stage driven wheel (131), a second-stage driven wheel (132), a stripping rod (133) and a core (134), the power mechanism (4) is in transmission connection with the first-stage driven wheel (131), the first-stage driven wheel (131) is in transmission connection with a plurality of second-stage driven wheels (132), one stripping rod (133) is inserted into any one of the second-stage driven wheels (132), one end of the stripping rod (133) is fixedly provided with the core (134), and the other ends of the stripping rods (133) are provided with threads;
the inner hole of the secondary driven wheel (132) is provided with a guide groove (7), the stripping rod (133) is provided with a guide strip (6), and the guide strip (6) is embedded in the guide groove (7) in a sliding manner;
the primary driven wheel (131), the secondary driven wheel (132) and the stripping spring (5) are all arranged on the driven wheel fixing seat (11).
4. A threaded stripping mechanism according to claim 3, characterized in that one end of the core (134) is fixedly connected to the stripping bar (133), and the other end of the core (134) is provided with a thread of the same specification as the stripping bar (133).
5. A threaded demoulding mechanism according to claim 3, wherein the stripping bar fixing plate (12) comprises a fixing plate (121), stripping bar fixing holes (122) and spring fixing holes (123), the upper end of the driven wheel fixing seat (11) is in threaded connection with the fixing plate (121), the fixing plate (121) is provided with the same number of stripping bar fixing holes (122) as the stripping bars (133), and the outer sides of a plurality of stripping bar fixing holes (122) are provided with four spring fixing holes (123).
6. The thread demoulding mechanism according to claim 5, wherein the power mechanism (4) comprises a hydraulic motor (41), a driving wheel (42) and a gear fixing seat (43), the side surface of the driven wheel fixing seat (11) is fixed with the gear fixing seat (43) in a threaded manner, the top end of the gear fixing seat (43) is fixed with the hydraulic motor (41) in a threaded manner, the hydraulic motor (41) is in transmission connection with the driving wheel (42), and the driving wheel (42) is in meshing transmission connection with the secondary driven wheel (132).
7. The threaded demoulding mechanism according to claim 6, wherein the fixed mould (2) comprises a fixed mould plate (21), core holes (22) and spring grooves (23), one end of the stripping spring (5) is abutted against the spring grooves (23), the number of the spring grooves (23) is four, a plurality of core holes (22) are arranged in the four spring grooves (23), and a core (134) is inserted into any one core hole (22).
8. The threaded stripper mechanism according to claim 7, wherein the movable die (3) comprises a cavity (31) and a movable die plate (32), a plurality of the core holes (22) corresponding to a plurality of the cavities (31) one to one, and a plurality of the cavities (31) are provided on the movable die plate (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110010668.4A CN112829212A (en) | 2021-01-06 | 2021-01-06 | Thread demoulding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110010668.4A CN112829212A (en) | 2021-01-06 | 2021-01-06 | Thread demoulding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112829212A true CN112829212A (en) | 2021-05-25 |
Family
ID=75926077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110010668.4A Pending CN112829212A (en) | 2021-01-06 | 2021-01-06 | Thread demoulding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112829212A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707473A (en) * | 2013-12-06 | 2014-04-09 | 台州市黄岩炜大塑料机械有限公司 | Plastic mold internal screw thread floating stopping demolding mechanism |
| CN203680611U (en) * | 2014-02-12 | 2014-07-02 | 易模塑科技（深圳）有限公司 | Thread rotating demoulding mechanism |
| CN104647699A (en) * | 2015-02-12 | 2015-05-27 | 宁波博亚精密模具有限公司 | Injection mold for manufacturing internal thread knob |
| CN207140244U (en) * | 2017-09-05 | 2018-03-27 | 常州工程职业技术学院 | A kind of threaded lid class plastic automatic threads demoulding mould structure of a multi-cavity mold |
| CN110202760A (en) * | 2019-07-23 | 2019-09-06 | 广西机电职业技术学院 | The device and its application method of a kind of cover half side internal screw thread spin demoulding |
| CN110587929A (en) * | 2019-10-17 | 2019-12-20 | 宁波万盛实业有限公司 | Automatic thread removing mechanism for high-molecular polymer material and using method thereof |
| CN111605150A (en) * | 2020-06-25 | 2020-09-01 | 太仓盖瑞特塑胶模具有限公司 | Injection mold for automatically demolding nut products |
-
2021
- 2021-01-06 CN CN202110010668.4A patent/CN112829212A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707473A (en) * | 2013-12-06 | 2014-04-09 | 台州市黄岩炜大塑料机械有限公司 | Plastic mold internal screw thread floating stopping demolding mechanism |
| CN203680611U (en) * | 2014-02-12 | 2014-07-02 | 易模塑科技（深圳）有限公司 | Thread rotating demoulding mechanism |
| CN104647699A (en) * | 2015-02-12 | 2015-05-27 | 宁波博亚精密模具有限公司 | Injection mold for manufacturing internal thread knob |
| CN207140244U (en) * | 2017-09-05 | 2018-03-27 | 常州工程职业技术学院 | A kind of threaded lid class plastic automatic threads demoulding mould structure of a multi-cavity mold |
| CN110202760A (en) * | 2019-07-23 | 2019-09-06 | 广西机电职业技术学院 | The device and its application method of a kind of cover half side internal screw thread spin demoulding |
| CN110587929A (en) * | 2019-10-17 | 2019-12-20 | 宁波万盛实业有限公司 | Automatic thread removing mechanism for high-molecular polymer material and using method thereof |
| CN111605150A (en) * | 2020-06-25 | 2020-09-01 | 太仓盖瑞特塑胶模具有限公司 | Injection mold for automatically demolding nut products |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210525 |
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| RJ01 | Rejection of invention patent application after publication |