CN113954292B - Injection mold for bicolor hinged automobile part - Google Patents
Injection mold for bicolor hinged automobile part Download PDFInfo
- Publication number
- CN113954292B CN113954292B CN202111246592.1A CN202111246592A CN113954292B CN 113954292 B CN113954292 B CN 113954292B CN 202111246592 A CN202111246592 A CN 202111246592A CN 113954292 B CN113954292 B CN 113954292B
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- Prior art keywords
- core
- die
- mounting seat
- mold
- sliding block
- Prior art date
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- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 238000001746 injection moulding Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229930040373 Paraformaldehyde Natural products 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- -1 polyoxymethylene Polymers 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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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
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
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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
- B29C45/0017—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor moulding interconnected elements which are movable with respect to one another, e.g. chains or hinges
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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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/1628—The materials being injected at different moulding stations using a mould carrier rotatable about an axis perpendicular to the opening and closing axis of the moulding stations
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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
- B29L2031/22—Hinges, pivots
-
- 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 application discloses an injection mold for a bicolor hinged automobile part, which comprises: the movable mould plate is arranged on a rotary tray of the double-color injection molding machine and is provided with a first front mould core and a second front mould core; a fixed die plate on which two rear die cores are arranged; the first front die core and one of the rear die cores form a first die cavity, and the first die cavity is used for forming the mounting seat; the second front die core, the other rear die core and the mounting seat are enclosed to form a second die cavity, and the second die cavity is used for forming the buckle; the mounting seat is provided with a rotating shaft hole, and a part of the buckle hand is embedded into the rotating shaft hole so that the mounting seat and the buckle hand form a hinge structure. The injection mold for the bicolor hinged automobile part can mold the hinged automobile part at one time, reduces production steps and improves production efficiency.
Description
Technical Field
The application relates to the field of injection molds of automobile parts, in particular to an injection mold for a bicolor hinged automobile part.
Background
To achieve different functions, automobiles have a large number of hinge structures, such as doors, center box flaps, seats, latches, and the like. As shown in fig. 1, an automobile armrest box lock catch comprises a catch 01 and a mounting seat 02, wherein the catch 01 is connected with the mounting seat 02 through a rotating shaft 03, an elastic spring 04 is arranged between the catch 01 and the mounting seat 02, the existing manufacturing mode is to use two sets of dies to respectively manufacture the catch and the mounting seat, and then a bolt and a spring are manually mounted, so that the steps of a mounting procedure are multiple and the operation difficulty is high. In actual production, the buckle and the mounting seat are manufactured first and then transferred to an assembly workshop for assembly, so that transfer equipment and transfer time are required to be increased, and production cost and production period are increased.
Disclosure of Invention
The application provides an injection mold for a bicolor hinged automobile part, which at least can solve the problem of multiple production steps of the automobile part with a hinged structure.
To achieve the object of the present application, there is provided an injection mold for a two-color hinge automotive part, comprising:
the movable mould plate is arranged on a rotary tray of the double-color injection molding machine and is provided with a first front mould core and a second front mould core;
a fixed die plate on which two rear die cores are arranged;
the first front die core and one of the rear die cores form a first die cavity, and the first die cavity is used for forming the mounting seat; the second front die core, the other rear die core and the mounting seat are enclosed to form a second die cavity, and the second die cavity is used for forming the buckle;
an upper insert is further arranged on the front mold core, and the upper insert is arranged between the mounting seat and the second mold cavity; the end part of the upper insert is used for forming a gap between the mounting seat and the buckle;
the mounting seat is provided with a rotating shaft hole, and a part of the buckle hand is embedded into the rotating shaft hole so that the mounting seat and the buckle hand form a hinge structure.
The first front mold core and the second front mold core of the injection mold for the bicolor hinged automobile part can rotate along with the rotating tray of the bicolor injection molding machine, and after the first front mold core and one of the rear mold cores are assembled and the mounting seat is formed, the rotating tray rotates to exchange the positions of the first front mold core and the second front mold core, and the second front mold core and the rear mold core with the mounting seat are assembled and the buckle is formed. Because the mounting seat is provided with the rotating shaft hole after being molded, the handle is partially embedded into the rotating shaft hole to form a rotating shaft during molding, and a gap is formed between the mounting seat and the handle, so that the mounting seat and the handle form a hinge structure. The injection mold for the bicolor hinged automobile part can mold the hinged automobile part at one time, reduces production steps and improves production efficiency.
Further, the injection mold further comprises a first runner system and a second runner system, wherein the melting points of materials in the first runner system and the second runner system are different;
the first flow channel system is communicated with a first feed inlet on the first front die core;
the second flow channel system is communicated with a second feed inlet on the second front die core.
Further, a first inclined guide post is fixedly connected to the first front die core;
a first sliding block and a core pulling rod are arranged on the two rear mold cores, and a first guide hole matched with the first inclined guide post is formed in the first sliding block; one end of the core rod is connected with the first sliding block, and the other end of the core rod is used for forming a rotating shaft hole in the mounting seat.
Further, a first spring is arranged between the first sliding block and the rear die core, and the first sliding block has a movement trend away from the rear die core under the action of the spring.
Further, a second inclined guide post is fixedly connected to the second front die core;
a second sliding block and a core pulling block are arranged on the two rear mold cores, and a second guide hole matched with the second inclined guide post is formed in the second sliding block; one end of the core pulling block is connected with the second sliding block, and the other end of the core pulling block is used for forming a hook part on the buckle.
Further, a second spring is arranged between the second sliding block and the rear die core, and the second sliding block has a movement trend away from the rear die core under the action of the second spring.
Further, a lower insert is arranged on the rear die core, and the lower inserts are respectively arranged on two sides of the first die cavity and are close to the core pulling rod;
the cross-sectional area of the lower insert gradually decreases in a direction approaching the front mold plate.
Further, an upper insert is arranged on the second front mold core, and the upper inserts are respectively arranged on two sides of the second mold cavity and are opposite to the lower insert;
the cross-sectional area of the upper insert gradually decreases in a direction approaching the rear die plate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of a prior art armrest box latch;
FIG. 2 is an injection mold (with front mold plate hidden) for a two-color hinge automotive part according to the application;
FIG. 3 is a schematic diagram illustrating the assembly of the rear mold insert and the first diagonal member of the present application;
fig. 4 is an assembly schematic diagram of the rear mold core and the second oblique guide post of the present application.
Wherein: 01. the die comprises a clasp, 02, a mounting seat, 03, a rotating shaft, 04, a spring, 05, a hook part, 1, a first front die core, 2, a second front die core, 3, a rear die core, 4, a first feeding hole, 5, a second feeding hole, 11, a first inclined guide pillar, 21, a second inclined guide pillar, 22, an upper insert, 31, a first slide block, 32, a core drawing rod, 33, a first spring, 34, a second slide block, 35, a core drawing block, 36, a second spring, 37 and a lower insert.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2, the injection mold for a two-color hinge automotive part of the present application includes:
the movable mould plate is arranged on a rotary tray of the double-color injection molding machine and is provided with a first front mould core 1 and a second front mould core 2;
a fixed die plate on which two rear die cores 3 are arranged;
the first front mold core 1 and one of the rear mold cores 3 form a first mold cavity, and the first mold cavity is used for forming the mounting seat; the second front die core 2, the other rear die core 3 and the mounting seat are enclosed to form a second die cavity, and the second die cavity is used for forming a buckle;
the mounting seat is provided with a rotating shaft hole, and a part of the buckle hand is embedded into the rotating shaft hole so that the mounting seat and the buckle hand form a hinge structure.
The first front mold core 1 and the second front mold core 2 of the injection mold for the bicolor hinged automobile part can rotate along with the rotating tray of the bicolor injection molding machine, and after the first front mold core 1 and one of the rear mold cores 3 are assembled and a mounting seat is formed, the rotating tray rotates to exchange the positions of the first front mold core 1 and the second front mold core 2, and the second front mold core 2 and the rear mold core 3 with the mounting seat are assembled and a buckle is formed. Because the mounting seat is provided with the rotating shaft hole after being molded, the handle is partially embedded into the rotating shaft hole to form a rotating shaft during molding, and a gap is reserved between the mounting seat and the handle by arranging the upper insert, so that the mounting seat and the handle form a hinge structure. The injection mold for the bicolor hinged automobile part can mold the hinged automobile part at one time, reduces production steps and improves production efficiency.
As shown in FIG. 4, the gap reserved between the mounting seat and the buckle is small due to the fact that the mounting seat and the buckle can rotate, namely, the die for forming the gap is thin, and is easy to break in the use process, so that the injection die provided by the application adopts the upper insert at the position for forming the gap, and is convenient to repair after damage.
And the shape of the upper insert 22 gradually decreases along the direction approaching to the rear die plate, so that the upper insert 22 can move along the direction away from the rear die plate along with the front die core 1 during die opening without other fixing structures.
Accordingly, as shown in fig. 4, the rear mold core is provided with a lower insert 37, and the lower insert 37 is disposed opposite to the upper insert 22.
Because the position close to the core pulling rod 32 is a position on the mounting seat, which is provided with the rotating shaft hole, the structure of the position is complex, and the independent and detachable insert is arranged, so that the manufacturing cost is reduced, and the replacement is convenient. Correspondingly, an upper insert 22 is arranged on the front mold core, and the upper insert 22 is respectively arranged on two sides of the second mold cavity and is opposite to the lower insert 37; the cross-sectional area of the upper insert 22 gradually decreases in a direction approaching the rear die plate. Similarly, the provision of the upper insert 22 facilitates reduced production costs and also facilitates replacement.
The injection mold further comprises a first runner system and a second runner system, wherein the melting points of materials in the first runner system and the second runner system are different; the first flow channel system is communicated with a first feed inlet 4 on the first front die core 1; the second flow channel system is communicated with a second feeding port 5 on the second front mold core 2.
For example, in this embodiment, the material in the first flow channel system may be a molding material mainly composed of polyamide, the material in the second flow channel system may be a molding material mainly composed of polyoxymethylene, the melting points of polyamide and polyoxymethylene are different, and the shrinkage rate is also different.
As shown in fig. 3, a first oblique guide post 11 is fixedly connected to the first front mold core 1; the two rear mold cores 3 are respectively provided with a first sliding block 31 and a core pulling rod 32, and the first sliding blocks 31 are provided with first guide holes matched with the first inclined guide posts 11; one end of the core pulling rod 32 is connected with the first slider 31, and the other end of the core pulling rod is used for forming a rotating shaft hole on the mounting seat.
After the installation seat is formed, the first front mold core 1 is far away from the rear mold core 3, the first inclined guide pillar 11 drives the first sliding block 31 to slide, so that the core-pulling rod 32 is pulled out, and a rotating shaft hole is formed in the installation seat at the position of the core-pulling rod 32.
As shown in fig. 4, a first spring 33 is disposed between the first slider 31 and the rear mold core 3, and the first slider 31 has a movement tendency away from the rear mold core 3 under the action of the spring. In the process of molding the buckle, the second front mold core 2 is matched with the rear mold core 3, and the first slide block 31 and the core pulling rod 32 are kept in a pulled-out state under the action of the first spring 33 under the driving of the first inclined guide pillar 11 because the first inclined guide pillar 11 is not connected to the second front mold core 2.
As shown in fig. 4, a second oblique guide post 21 is fixedly connected to the second front mold core 2; the first back mold core 3 and the second back mold core 3 are respectively provided with a second sliding block 34 and a core pulling block 35, and the second sliding block 34 is provided with a second guide hole matched with the second inclined guide post 21; one end of the loose core block 35 is connected with the second sliding block 34, and the other end of the loose core block is used for forming a hook part on the buckle.
After the buckle is formed, the second front mold core 2 is far away from the rear mold core 3, and the second inclined guide post 21 drives the second slide block 34 to slide, so that the core-pulling block 35 is pulled out, and the trip of the hook part on the buckle is completed.
A second spring 36 is disposed between the second slider 34 and the rear mold core 3, and the second slider 34 has a movement trend away from the rear mold core 3 under the action of the second spring 36. In the process of forming the mounting seat, the first front mold core 1 is matched with the rear mold core 3, and the second slide block 34 and the core pulling block 35 are kept in a pulled-out state under the action of the second spring 36 under the driving of the second inclined guide pillar 21 because the second inclined guide pillar 21 is not connected to the first front mold core 1.
According to the injection mold for the bicolor hinged automobile part, the first front mold core and the second front mold core which can be exchanged in position and are different in structure are arranged, so that the hinged automobile part is molded step by step on the same injection molding machine, the structure of the hinged automobile part is used as a rotating shaft structure, the production steps and the shaft rotating time are reduced, and the production efficiency is improved.
In the description of the present application, it should be understood that the terms "vertical," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present application.
If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is for convenience only as well as to facilitate a description of the application, and is not intended to have a special meaning unless otherwise indicated.
The present application is not limited to the embodiments described above, but, if various modifications or variations of the present application are not departing from the spirit and scope of the present application, the present application is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (4)
1. An injection mold for a bicolor hinged automotive part, comprising:
the movable mould plate is arranged on a rotary tray of the double-color injection molding machine and is provided with a first front mould core and a second front mould core;
a fixed die plate on which two rear die cores are arranged;
the first front die core and one of the rear die cores form a first die cavity, and the first die cavity is used for forming the mounting seat; the second front die core, the other rear die core and the mounting seat are enclosed to form a second die cavity, and the second die cavity is used for forming the buckle;
an upper insert is further arranged on the front mold core, and the upper insert is arranged between the mounting seat and the second mold cavity; the end part of the upper insert is used for forming a gap between the mounting seat and the buckle;
the mounting seat is provided with a rotating shaft hole, and a part of the buckle hand is embedded into the rotating shaft hole so that the mounting seat and the buckle hand form a hinged structure;
a first inclined guide post is fixedly connected to the first front die core;
a first sliding block and a core pulling rod are arranged on the two rear mold cores, and a first guide hole matched with the first inclined guide post is formed in the first sliding block; one end of the core drawing rod is connected with the first sliding block, and the other end of the core drawing rod is used for forming a rotating shaft hole in the mounting seat;
a first spring is arranged between the first sliding block and the rear die core, and the first sliding block has a movement trend away from the rear die core under the action of the spring;
a second inclined guide post is fixedly connected to the second front die core;
a second sliding block and a core pulling block are arranged on the two rear mold cores, and a second guide hole matched with the second inclined guide post is formed in the second sliding block; one end of the core pulling block is connected with the second sliding block, and the other end of the core pulling block is used for forming a hook part on the buckle;
a second spring is arranged between the second sliding block and the rear die core, and the second sliding block has a movement trend away from the rear die core under the action of the second spring.
2. An injection mold for two-color articulated automobile parts according to claim 1, characterized in that,
the injection mold further comprises a first runner system and a second runner system, wherein the melting points of materials in the first runner system and the second runner system are different;
the first flow channel system is communicated with a first feed inlet on the first front die core;
the second flow channel system is communicated with a second feed inlet on the second front die core.
3. An injection mold for two-color articulated automobile parts according to claim 1, characterized in that,
the cross-sectional area of the upper insert gradually decreases in a direction approaching the rear die plate.
4. An injection mold for two-color articulated automobile parts according to claim 1, characterized in that,
the rear mold core is provided with a lower insert, the lower insert and the upper insert are arranged opposite to each other, and the cross section area of the lower insert is gradually reduced along the direction approaching to the front mold plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111246592.1A CN113954292B (en) | 2021-10-26 | 2021-10-26 | Injection mold for bicolor hinged automobile part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111246592.1A CN113954292B (en) | 2021-10-26 | 2021-10-26 | Injection mold for bicolor hinged automobile part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113954292A CN113954292A (en) | 2022-01-21 |
| CN113954292B true CN113954292B (en) | 2023-12-01 |
Family
ID=79467118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111246592.1A Active CN113954292B (en) | 2021-10-26 | 2021-10-26 | Injection mold for bicolor hinged automobile part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113954292B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6334113A (en) * | 1986-07-30 | 1988-02-13 | Nippon Columbia Co Ltd | Manufacture of cylindrical bearing |
| JPH09314617A (en) * | 1996-05-30 | 1997-12-09 | Tsutsui Plast:Kk | Manufacture of plastic injection molded product having revolvable connection part |
| JP2000000841A (en) * | 1998-06-17 | 2000-01-07 | Yazaki Corp | Method for insert molding sliding pair |
| CN105415600A (en) * | 2015-12-08 | 2016-03-23 | 深圳天珑无线科技有限公司 | Double-shot molding mold |
| CN107130868A (en) * | 2017-07-04 | 2017-09-05 | 贵州贵航汽车零部件股份有限公司华阳电器公司 | A kind of vehicle switch four-way hinge arrangement and preparation method thereof |
| CN206644286U (en) * | 2017-04-07 | 2017-11-17 | 长春恒兴集团有限公司 | The double-colored class injection mold structure of vehicle rotary |
| CN207105443U (en) * | 2017-08-28 | 2018-03-16 | 慈溪市易格模具有限公司 | A kind of mould of the double-colored button of automobile controller |
-
2021
- 2021-10-26 CN CN202111246592.1A patent/CN113954292B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6334113A (en) * | 1986-07-30 | 1988-02-13 | Nippon Columbia Co Ltd | Manufacture of cylindrical bearing |
| JPH09314617A (en) * | 1996-05-30 | 1997-12-09 | Tsutsui Plast:Kk | Manufacture of plastic injection molded product having revolvable connection part |
| JP2000000841A (en) * | 1998-06-17 | 2000-01-07 | Yazaki Corp | Method for insert molding sliding pair |
| CN105415600A (en) * | 2015-12-08 | 2016-03-23 | 深圳天珑无线科技有限公司 | Double-shot molding mold |
| CN206644286U (en) * | 2017-04-07 | 2017-11-17 | 长春恒兴集团有限公司 | The double-colored class injection mold structure of vehicle rotary |
| CN107130868A (en) * | 2017-07-04 | 2017-09-05 | 贵州贵航汽车零部件股份有限公司华阳电器公司 | A kind of vehicle switch four-way hinge arrangement and preparation method thereof |
| CN207105443U (en) * | 2017-08-28 | 2018-03-16 | 慈溪市易格模具有限公司 | A kind of mould of the double-colored button of automobile controller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113954292A (en) | 2022-01-21 |
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