CN109203348A - Resin molded part, the manufacturing method of resin molded part and mold - Google Patents
Resin molded part, the manufacturing method of resin molded part and mold Download PDFInfo
- Publication number
- CN109203348A CN109203348A CN201810716628.XA CN201810716628A CN109203348A CN 109203348 A CN109203348 A CN 109203348A CN 201810716628 A CN201810716628 A CN 201810716628A CN 109203348 A CN109203348 A CN 109203348A
- Authority
- CN
- China
- Prior art keywords
- molded part
- resin molded
- resin
- mold
- gate
- 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.)
- Granted
Links
- 239000011347 resin Substances 0.000 title claims abstract description 109
- 229920005989 resin Polymers 0.000 title claims abstract description 109
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 238000001746 injection moulding Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 4
- 229920005668 polycarbonate resin Polymers 0.000 claims description 4
- 239000004431 polycarbonate resin Substances 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 206010037660 Pyrexia Diseases 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004382 potting Methods 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- 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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
- B29C2045/0027—Gate or gate mark locations
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides the manufacturing method and mold of the resin molded part, resin molded part that inhibit the appearance near gate vestiges to be deteriorated.Resin molded part (26) is the resin molded part produced by injection molding, the gate vestiges (28) with peripheral wall (26b) are formed on the surface (26a) of resin molded part (26), the curvature R of the periphery base portion (26c) of peripheral wall (26b) is 0.5~1.0mm, will not recognize weld bond from external view.
Description
Technical field
The present invention relates to resin molded part, the manufacturing method of resin molded part and molds.
Background technique
In the past, it is therefore known to use the resin molded part of injection molding (Injection Molding).In addition, with resin
The enlargement of drip molding, it is also proposed that from the method for multiple gated injection resins.In this case, exist due between cast gate
It leads to the problem of weld bond (Weld Line) and damages appearance.In this regard, proposing by will be from the opportunity of each cast gate potting resin
It is staggered and prevents the method (referring to patent document 1,2) of the weld bond impacted to appearance.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2013-1019 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2013-129121 bulletin
Summary of the invention
Problem to be solved by the invention
However, as the above method, by manufacturing ester moulding for being staggered from the opportunity of each cast gate potting resin
In the case where part, the injection quantitative change being especially initially injected at the first cast gate of resin is more.Therefore, in the peripheral wall of the first cast gate
Near, under the action of the associated accumulation of heat of the increase with shearing fever, generate the uncured resin not being fully cured.The application's
Inventor expects, due to the resin molded part that the uncured resin is attached to mold, manufactures in next circulation, thus because pouring
Mouthful trace albefaction nearby etc. and cause the appearance of resin molded part to be deteriorated.Even if in the case where cast gate is one, if injection volume
Increase, then may also generate above-mentioned phenomenon.
The present invention is in view of the above situation to complete, and one of exemplary purpose is to provide a kind of inhibition cast gate trace
The new technology that appearance near mark is deteriorated.
The method for solving problem
In order to solve the above problems, the resin molded part of one embodiment of the present invention is produced by injection molding
Resin molded part is formed with the gate vestiges with peripheral wall on the surface of resin molded part, and the curvature R of the periphery base portion of peripheral wall is
0.5mm~1.0mm will not recognize weld bond from external view.
According to which, will not be from the resin molded part that external view recognizes weld bond, the peripheral wall of gate vestiges
Periphery base portion become to be not easy it is noticeable.
The thickness for being also possible to the main portions of resin molded part is less than 3.0mm.As a result, in the resin molded part of thin-walled
The periphery base portion of the peripheral wall of middle gate vestiges becomes to be not easy noticeable.
It is also possible in multiple cast gates that gate vestiges configure in the mold as used in the forming in resin molded part
The cast gate near center is configured to be formed.Caused as a result, by the more cast gate being configured near center of the injection volume of resin
Gate vestiges peripheral wall periphery base portion become to be not easy it is noticeable.
Being also possible to resin molded part is by manufacturing according to the time difference from multiple gated injection molten resins.By
This, is not easy to recognize weld bond from external view.
It is also possible to resin molded part using polycarbonate resin or acrylic resin as principal component.
The major diameter for being also possible to gate vestiges is 2.0mm~3.0mm.
Being also possible to resin molded part is the component that length direction is 500mm or more.
Another way of the invention is related to a kind of manufacturing method of resin molded part.This method is according to the time difference from multiple
The manufacturing method of the resin molded part of gated injection molten resin, from the opening edge for the main cast gate for being injected molten resin first
The curvature R of the bending section continued to cavity side inner wall is 0.5mm~1.0mm.
According to which, it is able to suppress the shearing at the opening edge of main cast gate and generates heat.
It is also possible to from the injection rate of the molten resin of main gated injection be 80g/s or more.Thereby, it is possible to not reduce life
The appearance near gate vestiges is inhibited to yield to be deteriorated.
Another mode of the invention is related to a kind of mold.The mold is the mold for being formed with multiple cast gates, from being configured at mould
The curvature R for the bending section that the opening edge of cast gate near the whole center of tool continues to the cavity side inner wall of mold is 0.5mm
~1.0mm.
According to which, it is able to suppress the appearance near gate vestiges and is deteriorated.
In addition, for above constituent element arbitrary combination, it is of the invention be expressed in method, apparatus, system etc. it
Between converted after content as mode of the invention be also effective.
Invention effect
In accordance with the invention it is possible to which the appearance near gate vestiges is inhibited to be deteriorated.
Detailed description of the invention
(a) in Fig. 1 is the cross-sectional view for indicating the Sketch of mold involved in present embodiment, and (b) in Fig. 1 is
The enlarged drawing of region A shown in (a) in Fig. 1.
(a) in Fig. 2 be indicate mold involved in present embodiment valve pin close in the state of Sketch
Cross-sectional view, (b) in Fig. 2 are the enlarged drawings of region B shown in (a) in Fig. 2.
(a) in Fig. 3 is the schematic diagram of the flowing of resin when indicating to cavity injection molten resin, and (b) in Fig. 3 is
The enlarged drawing of the region C of (a) in Fig. 3.
Fig. 4 is the schematic diagram for indicating the bad resin near cast gate.
Fig. 5 is the schematic diagram of the flowing of resin when indicating to cavity injection molten resin.
Fig. 6 is the figure for schematically showing type chamber corresponding with resin molded part involved in present embodiment.
Description of symbols
10: mold；12: movable side mold；14: fixed side mold；14a: cavity side inner wall；14b: bending section；16: hot-fluid
Road nozzle；18: valve pin；20: cast gate；20a: opening edge；20b: the first cast gate；22: type chamber；24: resin flow path；26: resin
Drip molding；26a: surface；26b: peripheral wall；26c: periphery base portion；28: gate vestiges.
Specific embodiment
Hereinafter, referring to attached drawing etc., detailed description of the preferred embodiments.In addition, in the description of the drawings
Same appended drawing reference is marked to same element, and suitably the repetitive description thereof will be omitted.
(mold)
(a) in Fig. 1 is the cross-sectional view for indicating the Sketch of mold involved in present embodiment, and (b) in Fig. 1 is
The enlarged drawing of region A shown in (a) in Fig. 1.
Mold 10 shown in (a) in Fig. 1 have movable side mold 12, fixed side mold 14, hot-runner nozzle 16 and
Valve pin 18.Cast gate 20 is formed in fixed side mold 14.The gate diameter X of cast gate 20 involved in present embodiment is (referring to Fig.1
In (b)) be 2~3mm or so.
Fixed side mold 14 is formed with cavity side inner wall 14a of the opening edge 20a to fixed side mold 14 from cast gate 20
The bending section 14b of continuity.Between movable side mold 12 and fixed side mold 14, it is formed with and manufactured resin molded part
The corresponding type chamber 22 of shape.The thickness t of type chamber 22 is in the range of 2~5mm, more preferably less than 3.0mm.
In addition, as shown in Figure 1, being formed between valve pin 18 and hot-runner nozzle 16 in the state of keeping out of the way from cast gate 20
The resin flow path 24 flowed for molten resin M towards cast gate 20 in injection.
(a) in Fig. 2 be indicate mold involved in present embodiment valve pin 18 close in the state of Sketch
Cross-sectional view, (b) in Fig. 2 is the enlarged drawing of region B shown in (a) in Fig. 2.
As shown in (a) in Fig. 2, (b) in Fig. 2, valve pin 18 is in the state of slightly prominent from cast gate 20 (in cavity side
The distance between wall 14a and 18 front end of valve pin are 0.2~0.4mm or so) it is abutted with the surface 26a of resin molded part 26.Therefore,
In the surface 26a of resin molded part 26, it is formed with the recess portion (gate vestiges of crateriform corresponding with the front end geometry of valve pin 18
28).The major diameter and gate diameter X of gate vestiges 28 are accordingly 2.0~3.0mm or so, so that the appearance of resin molded part 26
It is deteriorated, therefore it is required that the gate vestiges 28 are as much as possible unobtrusively.
Next, an example of the situation obvious to gate vestiges is illustrated.(a) in Fig. 3 is indicated to type chamber
The schematic diagram of the flowing of resin when 22 injecting molten resin, (b) in Fig. 3 are the enlarged drawings of the region C of (a) in Fig. 3.
A part of the molten resin M flowed into from cast gate 20 is flowed along the cavity side inner wall 14a of fixed side mold 14.This
When, when molten resin M is by near nonplanar bending section 14b, generates and cut between fixed side mold 14 and molten resin M
Cut fever (frictional heat).The amount that present inventor contemplates shearing fever is related to the curvature R of bending section 14b.
For example, shearing fever in the case that the curvature R of the bending section 14b shown in (b) in Fig. 3 is 0.3mm or so
Measure larger, therefore the temperature near the 14b of bending section rises because of accumulation of heat, to deposit the part molten resin M after injection not just
The case where often solidifying and becoming bad resin.Fig. 4 is the schematic diagram for indicating the bad resin near cast gate.Non- normal cure
Bad resin 30 is attached to fixed side mold 14 in die sinking sometimes, and is adhered to and is next manufactured and inject next time
Resin molded part 26 on, to generate bad order.
In this regard, present inventor is so that the curvature R of the bending section 14b of fixed side mold 14 is in 0.5~1.0mm's
Mode in range processes bending section 14b.Fig. 5 is the flowing of resin when indicating to type 22 injecting molten resin of chamber
Schematic diagram.The curvature R of bending section 14b shown in fig. 5 is in the range of 0.5~1.0mm.Using such mold 10
In the case of, even if injection molding is repeated, it also can inhibit the temperature of the bending section 14b of the fixed side mold 14 caused by accumulation of heat
Degree rises, even if continuously being injected and the bad order of resin molded part 26 can also be reduced by increasing frequency injection.
Fig. 6 is the figure for schematically showing type chamber corresponding with resin molded part involved in present embodiment.In addition,
In Fig. 6, the diagram of 10 main body of mold is omitted.In addition, (a) in Fig. 3 is equivalent to the D-D section of Fig. 6.
It needs to increase injection rate the case where as manufacture large-scale resin molded part the case where, the negligible amounts of cast gate
When [g/s], it is easy to produce the phenomenon that temperature near above-mentioned bending section 14b rises because of accumulation of heat.For example, in order to make welding
Line becomes unobtrusively and in the case where being staggered from the opportunity of each cast gate 20 (20b~20d) potting resin shown in fig. 6, first
The the first cast gate 20b for being injected molten resin needs to inject the melting tree for the amount at least reaching second adjacent cast gate 20c, 20d
Rouge M.
In addition, the mold for constituting type chamber 22 shown in fig. 6 is formed with multiple cast gate 20b~20d, in the center of mold entirety
Nearby it is configured with the first cast gate 20b.
Moreover, the manufacturing method of resin molded part involved in present embodiment is according to the time difference from multiple cast gate 20b
The method of~20d injecting molten resin, from the bending section that the opening edge 20a of the first cast gate 20b continues to cavity side inner wall 14a
The curvature R of 14b is 0.5~1.0mm.Thereby, it is possible to inhibit the shearing fever at the opening edge 20a of the first cast gate 20b.
In addition, from the first cast gate 20b inject molten resin injection rate be 80g/s or more, preferably 100g/s or more.
Thereby, it is possible to inhibit the appearance near gate vestiges 28 to be deteriorated with not reducing productivity.
Next, the ester moulding produced referring to (a) in Fig. 3 to the manufacturing method by using above-mentioned mold
Part is described in detail.
Resin molded part 26 involved in present embodiment is the resin molded part produced by injection molding.Resin
Drip molding 26 is formed with the gate vestiges 28 with peripheral wall 26b in surface 26a.The curvature R of the periphery base portion 26c of peripheral wall 26b is
0.5~1.0mm.By increasing the curvature R of periphery base portion 26c to a certain extent, so that the shape at cricoid periphery base portion 26c
Shape becomes to mitigate, in the case where gate vestiges 28 viewed from above, make periphery base portion 26c become to be not easy it is noticeable.
In addition, for resin molded part 26, by the opportunity being suitably staggered from each cast gate 20 (20b~20d) potting resin, be not easy from
External view recognizes weld bond.
The thickness t of the main portions of resin molded part 26 is less than 3.0mm.Then, in the resin molded part of such thin-walled
The periphery base portion 26c of the peripheral wall 26b of gate vestiges 28 becomes to be not easy noticeable in 26.
Being configured in multiple cast gates that gate vestiges configure in the mold as used in the forming in resin molded part 26
The first cast gate 20b near center is formed.As a result, by more the first cast gate being configured near center of the injection volume of resin
The periphery base portion 26c of the peripheral wall 26b of gate vestiges 28 caused by 20b becomes to be not easy noticeable.
Resin molded part 26 involved in present embodiment for example can be used as the component used in lamps apparatus for vehicle and
It is used.Specifically, being mark lamp lens, strip member as cover.In addition, resin molded part 26 is shown in fig. 6
Size L on length direction is 500~1000mm or so, and the size W on short side direction is 150~300mm or so.In addition,
In the case where as the component for needing to penetrate light as lamp part, resin molded part 26 is configured to polycarbonate resin
Rouge, acrylic resin are as principal component.
In addition, being made flowing than different according to the difference of the type of resin material, therefore the magnitude range of resin molded part
Also different according to resin material.For example, if by L1 [mm] is set as from the first cast gate to the distance of type chamber end, and by type chamber
Thickness is set as t [mm], in the case that material is polycarbonate resin, preferably makes flowing more such than 125~150 or less L1/t
Size resin molded part, when material be acrylic resin in the case where, preferably make flowing than 120~150 or less L1/t
The resin molded part of such size.
More than, referring to above embodiment, the present invention is described, but the present invention is not limited to above-mentioned embodiment party
Formula carries out content appropriately combined, after displacement to the composition of embodiment and is also included in the present invention.Furthermore it is also possible to be based on
The knowledge of those skilled in the art is suitably replaced the sequence of combination, processing in embodiment, is applied to embodiment
The deformation such as various design alterations, the embodiment for being applied with above-mentioned deformation also may include within the scope of the invention.
Claims (10)
1. a kind of resin molded part is the resin molded part produced by injection molding, which is characterized in that
The gate vestiges with peripheral wall are formed on the surface of the resin molded part,
The curvature R of the periphery base portion of the peripheral wall is 0.5mm~1.0mm,
Weld bond will not be recognized from external view.
2. resin molded part according to claim 1, which is characterized in that
The thickness of the main portions of the resin molded part is less than 3.0mm.
3. resin molded part according to claim 1 or 2, which is characterized in that
The configuration in multiple cast gates that the gate vestiges configure in the mold as used in the forming in the resin molded part
Cast gate near center is formed.
4. resin molded part described in any one of claim 1 to 3, which is characterized in that
The resin molded part is by manufacturing according to the time difference from multiple gated injection molten resins.
5. resin molded part according to any one of claims 1 to 4, which is characterized in that
The resin molded part is using polycarbonate resin or acrylic resin as principal component.
6. resin molded part according to any one of claims 1 to 5, which is characterized in that
The major diameter of the gate vestiges is 2.0mm~3.0mm.
7. resin molded part described according to claim 1~any one of 6, which is characterized in that
The resin molded part is the component that length direction is 500mm or more.
8. a kind of manufacturing method of resin molded part is the ester moulding according to the time difference from multiple gated injection molten resins
The manufacturing method of part, which is characterized in that
The curvature R of the bending section continued from the opening edge for the main cast gate for being injected molten resin first to cavity side inner wall is
0.5mm~1.0mm.
9. the manufacturing method of resin molded part according to claim 8, which is characterized in that
Injection rate from the molten resin of the main gated injection is 80g/s or more.
10. a kind of mold is the mold for being formed with multiple cast gates, which is characterized in that
The bending section continued from the opening edge of the cast gate near the center for being configured at mold entirety to the cavity side inner wall of mold
Curvature R be 0.5mm~1.0mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-133569 | 2017-07-07 | ||
| JP2017133569A JP7045146B2 (en) | 2017-07-07 | 2017-07-07 | Resin molded products, manufacturing methods and molds for resin molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109203348A true CN109203348A (en) | 2019-01-15 |
| CN109203348B CN109203348B (en) | 2021-09-14 |
Family
ID=64989972
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810716628.XA Active CN109203348B (en) | 2017-07-07 | 2018-07-03 | Resin molded article, method for producing resin molded article, and mold |
| CN201821046592.0U Active CN209036852U (en) | 2017-07-07 | 2018-07-03 | Resin molded part and mold |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821046592.0U Active CN209036852U (en) | 2017-07-07 | 2018-07-03 | Resin molded part and mold |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7045146B2 (en) |
| CN (2) | CN109203348B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7045146B2 (en) * | 2017-07-07 | 2022-03-31 | 株式会社小糸製作所 | Resin molded products, manufacturing methods and molds for resin molded products |
| JP7458809B2 (en) * | 2020-02-08 | 2024-04-01 | 株式会社小糸製作所 | Injection molded products, their molding methods, and molding equipment |
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| JPS5869029A (en) * | 1981-10-20 | 1983-04-25 | Sony Corp | Synthetic resin molded body and mold apparatus therefor |
| JPH10100212A (en) * | 1996-10-02 | 1998-04-21 | Sankyo Kasei Co Ltd | Injection molding machine |
| JP2013001019A (en) * | 2011-06-20 | 2013-01-07 | Nissan Motor Co Ltd | Injection molding method |
| JP2013129121A (en) * | 2011-12-21 | 2013-07-04 | Suzuki Motor Corp | Mold for injection-molding, and injection molding method |
| CN203611431U (en) * | 2013-09-29 | 2014-05-28 | 厦门捷信达模具塑胶有限公司 | Seamless tunnel gate structure |
| CN205631248U (en) * | 2016-05-16 | 2016-10-12 | 浙江宏利汽车零部件有限公司 | Vulcanize injecting glue mould |
| CN106079285A (en) * | 2016-08-04 | 2016-11-09 | 江苏文光模具技术有限公司 | A kind of lampshade class injection mold gate structure |
| CN209036852U (en) * | 2017-07-07 | 2019-06-28 | 株式会社小糸制作所 | Resin molded part and mold |
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|---|---|---|---|---|
| JP3169149B2 (en) * | 1993-02-15 | 2001-05-21 | 豊田合成株式会社 | Injection molding method |
| JP2001503689A (en) | 1996-11-01 | 2001-03-21 | ハスキー・インジエクシヨン・モールデイング・システムズ・リミテツド | Apparatus and method for injection molding |
| JPH1148294A (en) * | 1997-07-31 | 1999-02-23 | Ozeki Hotsuto Rannaa Plan:Kk | Mold for injection molding of product with hole |
| JP4307769B2 (en) | 2001-10-31 | 2009-08-05 | 株式会社吉野工業所 | Container with means to prevent cracking of gate |
| JP2005219240A (en) | 2004-02-03 | 2005-08-18 | Aisin Seiki Co Ltd | Injection mold |
| JP4754948B2 (en) | 2005-11-22 | 2011-08-24 | テルモ株式会社 | Injection mold for outer cylinder for syringe, method for manufacturing outer cylinder for syringe, outer cylinder for syringe and syringe |
| DE202007008829U1 (en) | 2007-06-20 | 2008-10-30 | Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt | Subframe for installation in a motor vehicle |
| JP2013006341A (en) | 2011-06-24 | 2013-01-10 | Aisan Industry Co Ltd | Resin injection molded article and injection molding method of the same |
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2017
- 2017-07-07 JP JP2017133569A patent/JP7045146B2/en active Active
-
2018
- 2018-07-03 CN CN201810716628.XA patent/CN109203348B/en active Active
- 2018-07-03 CN CN201821046592.0U patent/CN209036852U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5869029A (en) * | 1981-10-20 | 1983-04-25 | Sony Corp | Synthetic resin molded body and mold apparatus therefor |
| JPH10100212A (en) * | 1996-10-02 | 1998-04-21 | Sankyo Kasei Co Ltd | Injection molding machine |
| JP2013001019A (en) * | 2011-06-20 | 2013-01-07 | Nissan Motor Co Ltd | Injection molding method |
| JP2013129121A (en) * | 2011-12-21 | 2013-07-04 | Suzuki Motor Corp | Mold for injection-molding, and injection molding method |
| CN203611431U (en) * | 2013-09-29 | 2014-05-28 | 厦门捷信达模具塑胶有限公司 | Seamless tunnel gate structure |
| CN205631248U (en) * | 2016-05-16 | 2016-10-12 | 浙江宏利汽车零部件有限公司 | Vulcanize injecting glue mould |
| CN106079285A (en) * | 2016-08-04 | 2016-11-09 | 江苏文光模具技术有限公司 | A kind of lampshade class injection mold gate structure |
| CN209036852U (en) * | 2017-07-07 | 2019-06-28 | 株式会社小糸制作所 | Resin molded part and mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109203348B (en) | 2021-09-14 |
| JP7045146B2 (en) | 2022-03-31 |
| CN209036852U (en) | 2019-06-28 |
| JP2019014149A (en) | 2019-01-31 |
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