CN114523638B - Injection mold with umbrella-shaped cooling water channel - Google Patents
Injection mold with umbrella-shaped cooling water channel Download PDFInfo
- Publication number
- CN114523638B CN114523638B CN202110982247.8A CN202110982247A CN114523638B CN 114523638 B CN114523638 B CN 114523638B CN 202110982247 A CN202110982247 A CN 202110982247A CN 114523638 B CN114523638 B CN 114523638B
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- Prior art keywords
- branch
- insert
- water
- guide groove
- water guide
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- 239000000498 cooling water Substances 0.000 title claims abstract description 42
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000003292 glue Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- 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 with an umbrella-shaped cooling water channel, which comprises a mold main body, a mold base and an insert, wherein the mold main body is arranged at the right center above the mold base, and the insert comprises: an insert; a water guide groove positioned in the middle; the two branch pipes are uniformly distributed along the circumferential direction and are provided with an inward inlet and two outward outlets; the two ends of the first branch are respectively connected with the water guide groove and the inlets of the two branch pipes, and each first branch is uniformly distributed along the radial direction of the same circumference; one end of the second branch is connected with the outlet of the two branch pipes, and the other end of the second branch extends outwards to the outside of the insert and is uniformly distributed along the radial direction of the same circumference; and an insert groove and a cooling water channel corresponding to the insert are arranged in the die main body. According to the invention, through the umbrella-shaped waterway design, the cooling waterways are uniformly distributed along the circumferential direction, so that the cooling effect is really balanced, and meanwhile, the insert and the die can be made of materials with different heat conducting properties due to the fact that the insert and the die can be separated, and the cost is saved.
Description
Technical Field
The invention relates to the field of molds, in particular to an injection mold with an insert and an umbrella-shaped cooling water channel.
Background
In injection molds, the cooling system is the core part of the mold, and has important effects on the service life of the mold, the production efficiency and quality of injection products. The influence of the waterway on the quality of the molded product is mainly represented by controlling the temperature of a mold when the product is molded, and the change of the temperature of the mold has influence on shrinkage deformation, dimensional stability, mechanical strength, stress cracking, surface quality and the like of the product. In the prior art, the cooling of the finished product is not uniform enough when the water path of the die works, or the water path is designed to be too complex for achieving the purpose of uniform cooling.
For example, in the disclosure of the chinese patent document, "a mold insert having an inclined alternating waterway structure and a method for manufacturing the same", the disclosure is CN102909841B, which includes an insert having a tapered section with a circular bottom surface, the outer wall of the insert is a tapered surface, a plurality of groups of inclined alternating waterway structures are provided inside, each group of inclined alternating waterway structures includes a left inclined waterway and a right inclined waterway, the waterways penetrate from the circular bottom surface of the insert and linearly extend upwards to intersect in the insert, an included angle between an axis of the left inclined waterway and the circular bottom surface is equal to an included angle between an axis of the right inclined waterway and the circular bottom surface, and the plurality of groups of inclined alternating waterway structures are uniformly distributed in the insert along a circumferential direction of the same circumference, when the mold insert is used for producing a transparent plastic product with a cylindrical cup shape, the upper and lower portions of the product can be balanced, however, the pipelines are complex, the cooling waterways are mutually communicated so that the cooling effect of the rear section of the waterway is worse than the front section, and the cooling effect is still defective in balancing.
When the mold is cooled, the cooling requirements of different parts are different, the best cooling effect is often required near the glue inlet, and the whole cooling water channel is often required to be made of materials which are favorable for heat dissipation, such as beryllium copper, so that the cost is greatly increased.
For example, "a metal mold insert with a novel waterway structure" disclosed in chinese patent literature, its bulletin number is CN211074367U, including an insert, at least one cavity is set in the insert, an insert cavity is set up in the cavity, the outer wall of the insert cavity is set up at intervals with the inner wall of the cavity, the annular space between the insert cavity and the cavity constitutes a cooling waterway cavity, the problems of small contact area of a cooling surface, uneven cooling effect and low cooling efficiency in the prior art are overcome, and the metal is adopted to manufacture the mold insert, further improving the cooling effect, but because the whole mold insert is manufactured by metal, the manufacturing cost is improved.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a separable cooling water channel, and the cooling water channel and the insert are designed, so that the water channel structure is more reasonable, and the cooling effect is more balanced.
The invention is realized by the following technical scheme: an injection mold with umbrella-shaped cooling water path, includes mould main part, mould base and mold insert, and the mould main part sets up the positive centre above the mould base, the mold insert includes: an insert; the water guide groove is positioned in the middle of the insert; the two branch pipes are provided with a plurality of identical branches, are uniformly distributed along the circumferential direction by taking the water guide groove as the center, and are provided with an inlet facing the water guide groove and outlets of two back water guide grooves; the first branch is in one-to-one correspondence with the inlets of the two branch pipes, one end of the first branch is connected with the water guide groove, and the other end of the first branch is connected with the inlet of the corresponding two branch pipe; the second branch is in one-to-one correspondence with the outlets of the two branch pipes, one end of the second branch is connected with the outlet corresponding to the two branch pipes, and the other end of the second branch extends outwards to the outside of the insert; the mold body further includes: the insert groove is arranged at the upper part of the die main body and used for installing the insert, and the notch of the water guide groove extends downwards to form a water inlet of the insert; and one end of the cooling water channel is positioned on the groove wall of the insert groove, is connected with the second branch, and the other end of the cooling water channel downwards extends to the base in the die main body, and each second branch corresponds to one cooling water channel which is uniformly distributed along the circumference taking the center of the die main body as the center of a circle.
When the cold water distributor is used, external cold water is connected with the water inlet, and the cold water enters from the water inlet along the vertical direction and then passes through the hemispherical water guide groove, so that the cold water can be uniformly distributed to each first branch; the second branch pipes are uniformly distributed along the radial direction of the same circumference, the outlets of the two branch pipes are symmetrically arranged, cold water enters the two branch pipes through the first branch pipe and is uniformly divided into two parts to be discharged outside the insert along the second branch pipe, and the cold water enters the cooling water channel to continuously cool other parts of the die. The semi-spherical water guide groove and the symmetrically arranged two branch pipes can uniformly divide cold water entering from the water inlet into a plurality of cooling water channels, each cooling water channel is uniformly distributed along the same circumference, so that the cooling effect can be truly balanced, the density of the first branch pipes around the water guide groove can be reduced, the structural strength is improved, and the production difficulty is reduced; the insert is positioned near the glue inlet and can be separated from the die, so that the material with high heat conduction performance can be independently adopted, and the cost is saved compared with the method for manufacturing the whole die by using the material with high heat conduction performance.
Preferably, the water guide groove is in an upward convex hemispherical shape, a spherical water control ball is arranged in the water guide groove, the top of the water control ball is connected with the top of the inner wall of the water guide groove through a connecting line, a plurality of temperature sensing components are uniformly distributed around the water control ball, and the temperature sensing components are connected with the water control ball and the groove wall of the water guide groove. When the temperature controller does not work, the temperature controller is kept in the water guide groove through a connecting wire, in a working state, the temperature sensing assembly obviously stretches and contracts along with the change of ambient temperature, when the position temperature corresponding to a certain temperature sensing assembly is higher than other positions, the length of the temperature sensing assembly is increased, the water control ball is pushed to be far away from the temperature sensing assembly, and therefore a cold water channel leading to the position is larger than other positions, namely more cold water flows to a first branch near the direction of the temperature sensing assembly, so that the temperature balance of each flowing direction is kept.
Preferably, the temperature sensing assembly comprises a temperature sensing bag and a spring, one end of the Wen Ganbao is connected with the water control ball, the other end of the Wen Ganbao is connected with the groove wall of the water guide groove through the spring, when the temperature around the temperature sensing bag rises, the heat sensitive material inside the temperature sensing bag is heated to generate solid-liquid phase change to expand, the ejector rod is pushed to generate power and travel, the water control ball is pushed, and the temperature sensing assembly at the low temperature side can be compressed more easily due to the arrangement of the spring.
Preferably, the water guide groove is in an upwardly convex hemispherical shape, so that water can be more uniformly guided in each direction after entering the water guide groove from the water inlet, and the power loss of cold water is reduced.
Preferably, each first branch is uniformly distributed along the radial direction of the same circumference, and each first branch is uniformly distributed along the radial direction of the same circumference, so that cold water uniformly flows to the outside of the insert under the condition of temperature balance around.
Preferably, the cooling water channels are uniformly distributed along the circumferential direction, so that the cooling water channels can be ensured to uniformly cool the die main body.
Preferably, the shape of the two branch pipes is a fan shape with the center of the circle being the center of the water guide groove, so that cold water can be guided to flow to the outlets on the two sides of the two branch pipes, and the kinetic energy loss in the cold water circulation process is reduced.
Preferably, the injection mold with the umbrella-shaped cooling water channel is provided with a plurality of cylindrical air valves vertically penetrating through the whole insert in a gap of the second branch, and demolding can be assisted by inward blowing.
Preferably, the injection mold with the umbrella-shaped cooling water channel is provided with a plurality of screw holes with downward orifices in the gap of the second branch, and the screw holes are used for installing the insert into the mold in cooperation with screws.
Preferably, the surface area of the injection mold with the umbrella-shaped cooling water channel on one side provided with the water inlet is smaller than that on the other side, so that the insert is conveniently installed in the insert groove.
Therefore, the invention has the following beneficial effects:
(1) Through umbrella-shaped waterway design, the cooling waterways are uniformly distributed along the circumferential direction, so that the cooling effect can be truly balanced;
(2) The density of the first branch around the water guide groove is reduced through the arrangement of the two branch pipes, the structural strength is improved, and the production difficulty is reduced.
Drawings
FIG. 1 is a schematic front view of a first embodiment of the present invention;
FIG. 2 is a schematic view of an embodiment of the present invention with waterway structure;
fig. 3 is a perspective view of the first embodiment;
FIG. 4 is a schematic side view of the first embodiment;
FIG. 5 is a schematic front view of an insert of embodiment two;
FIG. 6 is a schematic front view of an insert of embodiment three;
FIG. 7 is a cross-sectional view taken in the direction B-B of the insert of FIG. 6;
FIG. 8 is an enlarged schematic view at C of FIG. 7;
FIG. 9 is a schematic view of an embodiment with an insert not installed;
FIG. 10 is a schematic view of an embodiment with an insert installed;
fig. 11 is a cross-sectional view of an embodiment taken along the A-A direction of fig. 1.
In the figure: the mold comprises a mold body, a 1.1 insert groove, a 1.2 cooling water channel, a 2 mold base, a3 insert, a 3.1 water guide groove, a 3.11 hemispherical surface, a 3.12 water inlet, a 3.2 branch pipe, a 3.21 inlet, a 3.22 outlet, a 3.3 first branch pipe, a 3.4 second branch pipe, a 3.5 valve, a 3.6 screw hole, a 3.7 water control ball, a 3.8 temperature sensing component, a 3.81 temperature sensing bag and a 3.82 spring.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
As shown in fig. 1 and 2, an injection mold with an umbrella-shaped cooling water channel comprises a mold main body 1, a mold base 2 and an insert 3, wherein the insert 3 is made of beryllium copper, the mold main body is in a shape of a round table with a small upper part and a large lower part, the injection mold is arranged at the center above the mold base, the insert is in a shape of a round cake, a water guide groove 3.1 is arranged in the middle of the insert, and the water guide groove is in a semicircular shape protruding upwards; the two branch pipes 3.2 are provided with six identical branches, the six branches are uniformly distributed along the circumferential direction by taking the water guide groove 3.1 as the center, and each branch pipe 2 is provided with an inlet 3.21 facing the water guide groove 3.1 and an outlet 3.22 of two back water guide grooves; two ends of the first branch 3 are respectively connected with the water guide groove 3.1 and the inlets 3.21 of the two branch pipes, and the six branches are uniformly distributed along the radial direction of the same circumference; twelve second branches 3.4 are arranged in the same way, one end of each second branch 3.4 is connected with an outlet 3.22 of each branch 3.2, the other end of each second branch extends outwards to the outside of the insert and is connected with a cooling water channel, and each second branch is uniformly distributed along the radial direction of the same circumference; as shown in fig. 9, 10 and 11, an insert groove 1.1 is formed in the upper portion of the die body and is used for installing an insert, a water inlet 3.12 of the insert is formed by downward extending of a water guide groove opening, cooling water channels 1.2 are formed in the periphery of the die body, one end of each cooling water channel is located on the wall of the insert groove and connected with the second branch, the other end of each cooling water channel extends downwards in the die body to the die base 2, each second branch 3.4 corresponds to one cooling water channel 1.2, and each cooling water channel is uniformly distributed along the circumference taking the center of the die body as the center of a circle.
When the cold water distributor is used, external cold water is connected with the water inlet, and the cold water enters from the water inlet along the vertical direction and then passes through the hemispherical water guide groove, so that the cold water can be uniformly split into six first branches; the second branch pipes are uniformly distributed along the radial direction of the same circumference, the outlets of the two branch pipes are symmetrically arranged, and cold water enters the two branch pipes through the first branch pipe and is uniformly divided into two parts to be discharged outside the insert along the second branch pipe and enters the cooling water channel to continuously cool the die. The cooling water entering from the water inlet can be uniformly divided into twelve cooling water channels due to the hemispherical water guide grooves and the symmetrically arranged two branch pipes 3.2, and each cooling water channel is uniformly distributed along the same circumference, so that the cooling effect can be truly balanced, the number of first branch pipes around the water guide grooves can be reduced by half, the manufacturing difficulty is reduced, and the structural stability is improved; the insert is positioned near the glue inlet and can be separated from the die, so that the material with high heat conduction performance can be independently adopted, and compared with the method for manufacturing the whole die by adopting the material with high heat conduction performance, the cost is saved, and the processing difficulty is reduced. The upper parts of the water guide groove 3.1 and the two branch pipes are open, and the water guide groove is matched with the mould to form a closed pipeline after being installed in the mould.
The cross-sectional area of the first branch 3.3 is twice that of the second branch, so that the flow velocity is more stable during cold water circulation.
The shape of the two branch pipes 3.2 is a sector with the center of the water guide groove as the center of a circle, and the outlets 3.22 are axisymmetrically distributed by referring to the first branch pipe, so that cold water can be guided to uniformly flow to the outlets on the two sides of the two branch pipes, and the kinetic energy loss in the cold water circulation process is reduced.
The injection mold with umbrella-shaped cooling waterway is provided with a plurality of cylindrical air valves 3.5 vertically penetrating through the whole insert in the gap of the second branch, and demolding can be assisted by blowing inwards.
An injection mold with an umbrella-shaped cooling water path is provided with a plurality of screw holes 3.6 with downward orifices in the clearance of the second branch for installing the insert into the mold in cooperation with screws.
As shown in fig. 3 and 4, the injection mold having the umbrella-shaped cooling water path has a smaller area on the surface of one side provided with the water inlet than the other side, facilitating the installation of the insert into the insert groove.
In the second embodiment, as shown in fig. 5, eight branch pipes 3.2, eight first branch pipes and sixteen second branch pipes are uniformly arranged along the circumference of the insert, and other arrangements are the same as those in the first embodiment, and the added second branch pipes can enable the cooling water channels to be distributed more densely, so that the cooling efficiency is improved.
In the third embodiment, as shown in fig. 6, on the basis of the first embodiment, a glue inlet is formed in the middle of the other side of the water guiding groove on the surface of the insert, a spherical water control ball 3.7 is arranged in the water guiding groove, the top of the water control ball is connected with the top of the inner wall of the water guiding groove 1 through a connecting wire, six temperature sensing components are uniformly distributed around the water control ball and are connected with the water control ball and the groove wall of the water guiding groove, when the temperature controller is not in operation, the temperature controller is kept in the water guiding groove through the connecting wire, in an operating state, the temperature sensing components obviously stretch and contract along with the change of ambient temperature, when the heat of the glue inlet and each direction of the mold body is unbalanced due to the unbalanced speed or flow of raw materials flowing into each flow channel or other factors, and the length of the temperature sensing components is increased when the corresponding direction temperature of a certain temperature sensing component 3.8 is higher than other directions, and the length of the temperature sensing components is pushed to be away from the temperature sensing components, so that a cold water channel leading to the direction is larger than other directions, namely more cold water flows to a first branch near the direction of the temperature sensing components, so as to keep the temperature balance of each flow direction.
The temperature sensing subassembly includes temperature sensing package 3.81 and spring 3.82, as shown in fig. 7 and 8, wen Ganbao one end 3.81 connects 3.7 accuse water ball, and the cell wall of guiding gutter is connected through spring 3.82 to the other end, and when temperature around the temperature sensing package risees, the inside heat sensitive material of temperature sensing package (such as heat sensitive wax) is heated and is produced solid-liquid phase transition and expand, promotes the ejector pin and produces power and stroke to promote accuse water ball, and the setting of spring can make the temperature sensing subassembly of low temperature side compressed more easily.
Claims (5)
1. An injection mold with umbrella-shaped cooling water path, includes mould main part, mould base and mold insert, and the mould main part sets up the positive centre above the mould base, the mold insert includes:
The water guide groove is positioned in the middle of the insert, the water guide groove is in an upward protruding hemispherical shape, a spherical water control ball is arranged in the water guide groove, the top of the water control ball is connected with the top of the inner wall of the water guide groove through a connecting line, a plurality of temperature sensing assemblies are uniformly distributed around the water control ball, and the temperature sensing assemblies are connected with the water control ball and the groove wall of the water guide groove;
the two branch pipes are provided with a plurality of identical branches, are uniformly distributed along the circumferential direction by taking the water guide groove as the center, and are provided with an inlet facing the water guide groove and outlets of two back water guide grooves;
The first branch is in one-to-one correspondence with the inlets of the two branch pipes, one end of the first branch is connected with the water guide groove, and the other end of the first branch is connected with the inlet of the corresponding two branch pipe;
The second branch is in one-to-one correspondence with the outlets of the two branch pipes, one end of the second branch is connected with the outlet corresponding to the two branch pipes, and the other end of the second branch extends outwards to the outside of the insert;
The mold body includes:
the insert groove is arranged at the upper part of the die main body and used for installing the insert, and the notch of the water guide groove extends downwards to form a water inlet of the insert;
one end of the cooling water channel is positioned on the wall of the insert groove and connected with the second branch, the other end of the cooling water channel extends downwards to the base in the die main body, and each second branch corresponds to one cooling water channel;
the temperature sensing assembly comprises a temperature sensing bag and a spring, one end of Wen Ganbao is connected with the water control ball, and the other end is connected with the wall of the water guide groove through the spring;
Each first branch is uniformly distributed along the radial direction of the same circumference, and each second branch is uniformly distributed along the radial direction of the same circumference; the shape of the two branch pipes is a sector taking the center of the water guide groove as the center of a circle.
2. The injection mold with umbrella-shaped cooling waterway of claim 1, wherein: the cooling water channels are uniformly distributed along the circumferential direction.
3. The injection mold with umbrella cooling waterway of claim 1, wherein a plurality of cylindrical valves vertically penetrating the entire insert are disposed in the gap of the second branch.
4. The injection mold with umbrella-shaped cooling water path according to claim 1, wherein a plurality of screw holes with downward orifices are arranged in the gap of the second branch.
5. The injection mold with an umbrella-shaped cooling water path according to claim 1, wherein an area of a surface on one side where the water inlet is provided is smaller than that on the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110982247.8A CN114523638B (en) | 2021-08-25 | 2021-08-25 | Injection mold with umbrella-shaped cooling water channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110982247.8A CN114523638B (en) | 2021-08-25 | 2021-08-25 | Injection mold with umbrella-shaped cooling water channel |
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| Publication Number | Publication Date |
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| CN114523638A CN114523638A (en) | 2022-05-24 |
| CN114523638B true CN114523638B (en) | 2024-05-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201210790A (en) * | 2010-09-10 | 2012-03-16 | Yeun Chenn Co Ltd | Biomass plastic injection molding method and biomass plastic injection molding mechanism improvement and manufacturing process thereof |
| CN108284572A (en) * | 2017-12-27 | 2018-07-17 | 广东伟达智能装备股份有限公司 | Mold cooling system and the control method of mold cooling |
| CN208714426U (en) * | 2018-07-18 | 2019-04-09 | 珠海格力精密模具有限公司 | Injection mold |
| CN210911044U (en) * | 2020-03-25 | 2020-07-03 | 凯勒(南京)新材料科技有限公司 | Injection mold of plate-shaped injection product |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070065536A1 (en) * | 2005-09-20 | 2007-03-22 | Ming-Yu Chen | Cooling device for molds in an injection molding machine |
-
2021
- 2021-08-25 CN CN202110982247.8A patent/CN114523638B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201210790A (en) * | 2010-09-10 | 2012-03-16 | Yeun Chenn Co Ltd | Biomass plastic injection molding method and biomass plastic injection molding mechanism improvement and manufacturing process thereof |
| CN108284572A (en) * | 2017-12-27 | 2018-07-17 | 广东伟达智能装备股份有限公司 | Mold cooling system and the control method of mold cooling |
| CN208714426U (en) * | 2018-07-18 | 2019-04-09 | 珠海格力精密模具有限公司 | Injection mold |
| CN210911044U (en) * | 2020-03-25 | 2020-07-03 | 凯勒(南京)新材料科技有限公司 | Injection mold of plate-shaped injection product |
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| CN114523638A (en) | 2022-05-24 |
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