CN218462889U - Cooling water channel of injection mold - Google Patents
Cooling water channel of injection mold Download PDFInfo
- Publication number
- CN218462889U CN218462889U CN202222831584.XU CN202222831584U CN218462889U CN 218462889 U CN218462889 U CN 218462889U CN 202222831584 U CN202222831584 U CN 202222831584U CN 218462889 U CN218462889 U CN 218462889U
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- Prior art keywords
- cooling water
- injection mold
- fixedly connected
- cooling
- water channel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000498 cooling water Substances 0.000 title claims abstract description 87
- 238000002347 injection Methods 0.000 title claims abstract description 70
- 239000007924 injection Substances 0.000 title claims abstract description 70
- 238000001816 cooling Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 8
- 229920003023 plastic Polymers 0.000 abstract description 8
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002991 molded plastic Substances 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 239000000110 cooling liquid Substances 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 239000011120 plywood Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an injection mold cooling water course, concretely relates to injection mold field, including the injection mold roof, the below fixedly connected with cooling temperature adjustment mechanism of injection mold roof, cooling temperature adjustment mechanism includes that the temperature detects hollow groove, top condenser tube, die cavity, side cooling water course, core, controller, return water pipe, inlet channel, mass flow pipeline, bottom cooling water course and fixed fixture block. The utility model discloses a set up cooling temperature adjustment mechanism, when the mould is moulded plastics, can be through cooling water inlet control one side condenser tube whole can carry out cooling treatment in the later stage, can realize temperature regulation and handle, carry out the production process that cools off to mould plastics in the later stage simultaneously, can survey the mould week of below and can carry out rapid stabilization's cooling treatment, compare in traditional mould cooling, when the cooling water can't reach and must strengthen the cooling, the good materials of thermal conductivity such as available beryllium copper mold insert dispel the heat.
Description
Technical Field
The utility model relates to an injection mold field, more specifically says, the utility model relates to an injection mold cooling water course.
Background
The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used when parts with complex shapes are produced in batches, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification;
through retrieval, the prior patent (publication number: CN 217454834U) discloses an injection mold cooling water channel, which comprises a water channel inlet, wherein the water channel inlet comprises a large-diameter water channel and a fixing cover, the lowest position of the large-diameter water channel is provided with the fixing cover, the upper inner position of the fixing cover is provided with a fixing rod, the upper position of the fixing rod is provided with a steel rope, the upper inner position of the fixing cover is provided with a connecting thread, the lower outer position of the large-diameter water channel is provided with a clockwise thread, the upper position of the large-diameter water channel is provided with a small-diameter water channel, the upper position of the small-diameter water channel is provided with a bent water channel, a water pipe can be taken down, then the rotating cover and the fixing cover rotate anticlockwise to take down the rotating cover and the fixing cover from the large-diameter water channel and the rear large-diameter water channel, the rotating cover and the fixing cover are pulled back and forth, the steel rope continuously moves in the cooling water channel, a fixing clamping block on the steel rope can dredge and solve the problem that the cooling effect is poor after the cooling water channel is blocked. The inventor finds that the prior art has the following problems in the process of realizing the utility model:
in the cooling process of the existing injection mold, cold water needs to be manually input to cool Zhou Ce of the mold, but because the temperature in the injection mold process is high, the amount of the cooling water cannot be controlled to ensure the cooling efficiency, the mold is easily cooled insufficiently to cause poor mold forming, and a cooling temperature adjusting mechanism needs to be additionally arranged;
therefore, the injection mold cooling water channel is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides an injection mold cooling water course to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an injection mold cooling water course, includes the injection mold roof, the below fixedly connected with cooling temperature adjustment mechanism of injection mold roof, cooling temperature adjustment mechanism includes that the temperature detects hollow groove, top condenser tube, die cavity, side cooling water course, core, controller, return water pipe, inlet channel, mass flow pipeline, bottom cooling water course and fixed fixture block, one side fixedly connected with top condenser tube of hollow groove during the temperature detects, top condenser tube's below swing joint has the die cavity, one side fixedly connected with side cooling water course of die cavity, side cooling water course one side is provided with the core, the below fixedly connected with controller of die cavity, the outer wall fixedly connected with return water pipe of controller, the one end fixedly connected with mass flow pipeline of side cooling water course, the one end fixedly connected with inlet channel of mass flow pipeline, the other end fixedly connected with bottom cooling water course of mass flow pipeline, the both sides block of bottom cooling water course is connected with fixed fixture block.
Preferably, the upper part of the injection mold top plate is connected with four limit telescopic columns in a penetrating manner, and the lower parts of the limit telescopic columns are connected with fixing columns in a sleeved manner.
Preferably, the bottom of the fixing column is fixedly connected with an injection mold laminate, and the bottom of the injection mold laminate is movably connected with a bearing plate through a hinge.
Preferably, a motor is fixedly connected to the upper portion of one side of the injection mold laminate, an operation panel is fixedly connected to the upper portion of the motor, and the operation panel is MAM-880BTV.
Preferably, the top of the injection mold top plate is fixedly connected with a heat dissipation port, a connecting column is installed above the heat dissipation port, and a buffer groove is fixedly connected above the connecting column.
Preferably, a spring is fixedly connected to the upper portion of one side of the injection mold layer plate, and a pouring opening is formed in one side of the spring.
Preferably, the upper part of the pouring opening is fixedly connected with a cooling water outlet, the upper part of the cooling water outlet is fixedly connected with a cooling water inlet, one side of the cooling water inlet is fixedly connected with a water inlet pipeline, and the water inlet pipeline is an L-shaped pipeline.
Preferably, the injection mold top plate forms a lifting structure with the motor through a limiting telescopic column and a fixing column.
The utility model discloses a technological effect and advantage:
1. compared with the prior art, this injection mold cooling water course is through setting up cooling temperature adjustment mechanism, when the mould is moulded plastics, can be through cooling water inlet control one side condenser tube whole can be in the cooling process of later stage carrying out, can realize the temperature regulation and handle, carry out the production process that cools off the injection moulding in the later stage simultaneously, can survey the mould week of below and can carry out rapid and stable's cooling process, compare in traditional mould cooling, when the cooling water can't reach and must strengthen when cooling, the good material of thermal conductivity such as available beryllium copper mold insert dispels the heat, can accelerate the cooling on mould surface.
2. Compared with the prior art, this injection mold cooling water course is through under the prerequisite of guaranteeing the mould hardness, and the cooling water course is arranged closely as far as possible, and the cooling water course sets up as far as possible and is being close to the die cavity surface, and unanimous as far as possible with the die cavity distance each other, strengthening the cooling, and the top sets up the convenient steam of thermovent of concentrating and discharges.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the top cooling water pipe structure of the present invention.
Fig. 3 is the schematic diagram of the internal side-cut structure of the injection mold of the present invention.
Fig. 4 is the utility model discloses the whole cross sectional structure schematic diagram of injection mold.
Fig. 5 is a schematic view of the bottom cross-sectional structure of the laminate of the injection mold of the present invention.
The reference signs are: 1. injection molding a top plate of the mold; 2. limiting the telescopic column; 3. fixing a column; 4. injecting a mould laminate; 5. a bearing plate; 6. a motor; 7. an operation panel; 8. a cooling temperature adjusting mechanism; 801. a temperature detection hollow tank; 802. a top cooling water pipe; 803. a cavity; 804. a side cooling water channel; 805. a core; 806. a controller; 807. a water return pipe; 808. a water inlet pipe; 809. a manifold conduit; 810. a bottom cooling water channel; 811. fixing the fixture block; 9. a heat dissipation port; 10. connecting columns; 11. a buffer tank; 12. a hinge; 13. a spring; 14. a cooling water inlet; 15. a cooling water outlet; 16. and (6) pouring a port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
As shown in fig. 2, fig. 3 and fig. 5, the injection mold cooling water channel includes an injection mold top plate 1, a cooling temperature adjusting mechanism 8 is fixedly connected to a lower portion of the injection mold top plate 1, the cooling temperature adjusting mechanism 8 includes a temperature detection hollow groove 801, a top cooling water pipe 802, a cavity 803, a side cooling water pipe 804, a core 805, a controller 806, a water return pipe 807, a water inlet pipe 808, a water collecting pipe 809, a bottom cooling water pipe 810 and a fixing fixture block 811, one side of the temperature detection hollow groove 801 is fixedly connected with the top cooling water pipe 802, the lower portion of the top cooling water pipe 802 is movably connected with the cavity 803, one side of the cavity 803 is fixedly connected with the side cooling water pipe 804, the one side of the side cooling water pipe 804 is provided with the core 805, the lower portion of the cavity 803 is fixedly connected with the controller 806, the outer wall of the controller 806 is fixedly connected with the water return pipe 807, one end of the side cooling water pipe 804 is fixedly connected with the water collecting pipe 809, one end of the water collecting pipe 809 is fixedly connected with the water inlet pipe 808, the other end of the collecting pipe 809 is fixedly connected with the bottom cooling water pipe 810, and two sides of the bottom cooling water pipe 810 are fixedly connected with the fixing fixture block 811.
Wherein: the cooling liquid is conveyed and distributed by adopting a water inlet pipeline 808 and a flow collecting pipeline 809, the positions of a side cooling water channel 804 and a bottom cooling water channel 810 away from a pre-core 805 of a cavity 803 are guaranteed to be at least more than ten millimeters, the bottom cooling water channel 810 is clamped on the inner wall of a fixed clamping block 811 to play a role in fixing pipeline distribution, a plurality of groups of top cooling water pipes 802 are arranged, on the premise that the hardness of the mold is guaranteed as much as possible, the top cooling water pipes 802 are arranged tightly as possible, when cooling water cannot reach and cooling needs to be enhanced, materials with good heat conductivity such as beryllium copper inserts can be used for heat dissipation, a hollow groove 801 for temperature detection at the tail end can detect the temperature, the input quantity of the cooling liquid is adjusted by sensing the temperature through a controller 806, and finally the cooling liquid flows out through a water return pipeline 807, and can be recycled after being uniformly collected.
Example two
On the basis of the first embodiment, the scheme in the first embodiment is further detailed and introduced in combination with the following specific working modes, which are described in detail below:
as shown in fig. 1, as a preferred embodiment; the top through connection of injection mold roof 1 has spacing flexible post 2, and spacing flexible post 2 sets up to four groups, and the below cover of spacing flexible post 2 has connect fixed column 3, and is further, adopts spacing flexible post 2 and fixed column 3 and motor 6 to cooperate, can control the injection mold roof 1 of top and lock injection mold.
As shown in fig. 1, as a preferred embodiment; the bottom fixedly connected with injection mold plywood 4 of fixed column 3, there is board 5 through hinge 12 swing joint in the bottom of injection mold plywood 4, and further, the board 5 of accepting of one side can support when moulding plastics through injection mold plywood 4, and is very convenient.
As shown in fig. 1, as a preferred embodiment; the motor 6 is fixedly connected to the upper portion of one side of the injection mold laminate 4, the operation panel 7 is fixedly connected to the upper portion of the motor 6, the model of the operation panel 7 is MAM-880BTV, and further the motor 6 and the operation panel 7 are matched to control opening and closing of the injection mold and time.
As shown in fig. 1, as a preferred embodiment; the top fixedly connected with thermovent 9 of injection mold roof 1, spliced pole 10 is installed to the top of thermovent 9, and the top fixedly connected with dashpot 11 of spliced pole 10, it is further, concentrate exhaust and heat dissipation through thermovent 9, guarantee that the air of mould and the gas that plastics produced can discharge outside the mould.
As shown in fig. 4, as a preferred embodiment; one side top fixedly connected with spring 13 of injection mold plywood 4, one side of spring 13 is provided with pours mouthful 16, it is further, injection mold plywood 4 cooperates with spring 13 and injection mold roof 1, can drive injection mold roof 1 through motor 6 and go up and down, spring 13 is when not bearing load, generally all be and tight not have the clearance between the circle of spring 13 and the circle, exert pressure through the decline spring 13 circle and circle zonulae occludens and play limiting displacement.
As shown in fig. 4, as a preferred embodiment; pour the top fixedly connected with cooling water export 15 of mouth 16, the top fixedly connected with cooling water entry 14 of cooling water export 15, one side fixedly connected with inlet channel 808 of cooling water entry 14, and inlet channel 808 is L type pipeline, and is further, debugs the input of control coolant liquid through cooling water entry 14 to the cooling of control mould when moulding plastics, it is very convenient.
As shown in fig. 1, as a preferred embodiment; injection mold roof 1 constitutes elevation structure through spacing flexible post 2, fixed column 3 and motor 6, and is further, cooperates with fixed column 3 and motor 6 through spacing flexible post 2, and the whole injection mold roof 1 that can control the top can carry out the mould and exert pressure and handle, when strengthening the cooling, makes the mould temperature even, business turn over water difference in temperature control within five degrees centigrade.
The working process of the utility model is as follows:
firstly, when the device is used at the later stage, raw materials needing injection molding are poured into the interior of a mold through a pouring opening 16, a limiting telescopic column 2 and a fixed column 3 are connected in a sleeved mode and drive an injection mold top plate 1 to do telescopic motion through a motor 6, proper locking force of the mold is determined, air in a mold cavity 803 and a mold core 805 and gas generated by plastics can be discharged out of the mold through a heat dissipation opening 9, hot gas generated during mold injection molding of the mold is buffered and discharged through matching of a connecting column 10 and a buffer groove 11, a bearing plate 5 at the lower part can buffer pressure when an injection mold laminated plate 4 is extruded, a hinge 12 at one side plays a role in movable connection, a certain gap is formed between a spring 13 ring and a ring at one side above the injection mold laminated plate 4, the spring 13 shrinks and deforms when an external load is applied, the buffering role of the injection mold during locking can be played, and the cooling time accounts for about 70-80% of the whole molding cycle, the well designed cooling system can greatly shorten the molding time, the cooling liquid is input into the cooling temperature adjusting mechanism 8 through the cooling water inlet 14, the cooling liquid is conveyed and distributed by adopting the water inlet pipeline 808 and the flow collecting pipeline 809, the positions of the side cooling water channel 804 and the bottom cooling water channel 810 away from the pre-molding core 805 of the cavity 803 are ensured to be more than ten millimeters at least, the bottom cooling water channel 810 is clamped on the inner wall of the fixed fixture block 811 to play a role in fixing the pipeline distribution, the top cooling water pipes 802 are arranged into a plurality of groups, on the premise of ensuring the mold hardness as much as possible, the top cooling water pipes 802 are tightly arranged as much as possible, the hollow groove 801 in the temperature detection at the tail end can detect the temperature, the input amount of the cooling liquid is adjusted by sensing the controller 806, finally, the water flows out through the water return pipeline 807, and the used water is discharged through the cooling water outlet 15, the wall thickness portion and the gate portion of the product are cooled intensively by the operation panel 7.
the motor 6 proposed in the above text is of the type 68KTYZ.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an injection mold cooling water course, includes injection mold roof (1), its characterized in that: a cooling temperature adjusting mechanism (8) is fixedly connected below the injection mold top plate (1), the cooling temperature adjusting mechanism (8) comprises a temperature detection hollow groove (801), a top cooling water pipe (802), a cavity (803), a side cooling water channel (804), a mold core (805), a controller (806), a water return pipeline (807), a water inlet pipeline (808), a collecting pipeline (809), a bottom cooling water channel (810) and a fixed fixture block (811), one side of the temperature detection hollow groove (801) is fixedly connected with a top cooling water pipe (802), a cavity (803) is movably connected below the top cooling water pipe (802), one side of the cavity (803) is fixedly connected with a side cooling water channel (804), a mold core (805) is arranged on one side of the side cooling water channel (804), a controller (806) is fixedly connected below the cavity (803), the outer wall of the controller (806) is fixedly connected with a water return pipeline (807), one end of the side cooling water channel (804) is fixedly connected with a collecting pipe (809), one end of the collecting pipe (809) is fixedly connected with a water inlet pipe (808), the other end of the collecting pipeline (809) is fixedly connected with a bottom cooling water channel (810), and two sides of the bottom cooling water channel (810) are clamped and connected with fixed clamping blocks (811).
2. The injection mold cooling water channel of claim 1, wherein: the upper portion of the injection mold top plate (1) is connected with four limiting telescopic columns (2) in a penetrating mode, the limiting telescopic columns (2) are arranged into four groups, and fixing columns (3) are connected to the lower portions of the limiting telescopic columns (2) in a sleeved mode.
3. The injection mold cooling water channel of claim 2, wherein: the bottom of the fixed column (3) is fixedly connected with an injection mold layer plate (4), and the bottom of the injection mold layer plate (4) is movably connected with a bearing plate (5) through a hinge (12).
4. An injection mold cooling gallery according to claim 3, wherein: the injection mold comprises an injection mold layer plate (4), wherein a motor (6) is fixedly connected to the upper portion of one side of the injection mold layer plate (4), an operation panel (7) is fixedly connected to the upper portion of the motor (6), and the operation panel (7) is MAM-880BTV.
5. The injection mold cooling water channel of claim 2, wherein: the top fixedly connected with thermovent (9) of injection mold roof (1), spliced pole (10) are installed to the top of thermovent (9), the top fixedly connected with dashpot (11) of spliced pole (10).
6. An injection mold cooling gallery according to claim 3, wherein: a spring (13) is fixedly connected to the upper portion of one side of the injection mold layer plate (4), and a pouring opening (16) is formed in one side of the spring (13).
7. The injection mold cooling water channel of claim 6, wherein: the concrete pouring device is characterized in that a cooling water outlet (15) is fixedly connected to the upper portion of the pouring opening (16), a cooling water inlet (14) is fixedly connected to the upper portion of the cooling water outlet (15), a water inlet pipeline (808) is fixedly connected to one side of the cooling water inlet (14), and the water inlet pipeline (808) is an L-shaped pipeline.
8. The injection mold cooling water channel of claim 2, wherein: injection mold roof (1) constitutes elevation structure through spacing flexible post (2), fixed column (3) and motor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222831584.XU CN218462889U (en) | 2022-10-26 | 2022-10-26 | Cooling water channel of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222831584.XU CN218462889U (en) | 2022-10-26 | 2022-10-26 | Cooling water channel of injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN218462889U true CN218462889U (en) | 2023-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222831584.XU Expired - Fee Related CN218462889U (en) | 2022-10-26 | 2022-10-26 | Cooling water channel of injection mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117863586A (en) * | 2024-01-22 | 2024-04-12 | 江苏科力达汽车零部件有限公司 | Hydrogen fuel cell integrated stay bar processing and forming process |
-
2022
- 2022-10-26 CN CN202222831584.XU patent/CN218462889U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117863586A (en) * | 2024-01-22 | 2024-04-12 | 江苏科力达汽车零部件有限公司 | Hydrogen fuel cell integrated stay bar processing and forming process |
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