CN109774086A - A kind of production method of the profile-followed water circuit system and its lower mold core of plastic impeller mold - Google Patents
A kind of production method of the profile-followed water circuit system and its lower mold core of plastic impeller mold Download PDFInfo
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- CN109774086A CN109774086A CN201910246508.2A CN201910246508A CN109774086A CN 109774086 A CN109774086 A CN 109774086A CN 201910246508 A CN201910246508 A CN 201910246508A CN 109774086 A CN109774086 A CN 109774086A
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Abstract
The present invention relates to a kind of profile-followed water circuit systems of plastic impeller mold, it includes the cooling water channel being arranged between two shape chambers adjacent in lower mold core, cooling water channel moves towards arrangement along shape chamber and extends to core wheel direction, cooling water channel system is installed in cooling water channel, it is cooled down using the method for conformal cooling, cooling Quick uniform, lower mold core is welded by folded set of flitch A and flitch B, corresponding cooling water channel is processed along shape chamber trend on flitch A and flitch B respectively before welding, the cooling effect to shape chamber can be maximized when in use, also cooling water channel need not be processed in lower mold core after shaping, substantially increase processing efficiency.
Description
Technical field
The present invention relates to technology of die manufacturing fields, specifically be a kind of plastic impeller mold profile-followed water circuit system and
The production method of its lower mold core
Background technique
Mold, in industrial production to be molded, be blow molded, squeeze out, die casting or the methods of forging and forming, smelting, punching press obtain
The various moulds and tool of required product.In brief, mold is the tool for making formed article, and this tool is by various
Part is constituted, and different molds is made of different parts.It is mainly realized by the change of physical state of the formed material
The processing of article shape.It is known as the title of " mother of industry ", plastic impeller mold is exactly one of them.
Plastic impeller has in fields such as electronic product, white domestic appliances, automobile manufactures to be widely applied, due to technology
Innovation and the promotion of product quality are so as to plastic impeller in the functional attributes such as product size, precision and dynamic equilibrium parameter side
The requirement in face is continuously improved, and at present in the injection molding of impeller, the temperature adjusting of impeller mold is controlled by external temperature
Equipment simultaneously controls respective media by leading to heat transfer to realize the tune to mold temperature in pipeline inflow die waterway pipeline
Control, in this link heat transmitting it is uniform whether will directly affect the contraction distortion amount after formed product, to influence product
Quality.
The mach modes such as brill milling are generallyd use due to the cooling water channel in impeller mold at present and are packed into wherein cold
But water pipe, cooling water pipe usually linearly move towards the bottom for being distributed in impeller mold, and cooling water pipe can not be set with product is equidistant
Meter, and cooling water channel processing difficulties, which not only improves machining periods also to cause on type chamber in cooling procedure close to blade
Position inhomogeneous cooling is even to be easy to produce hot spot, causes mold cavity inhomogeneous cooling, and buckling deformations is caused to influence the quality of finished product.
Summary of the invention
For above situation, for the defect for overcoming the above prior art, the object of the present invention is to provide a kind of adjacent
Cooling water channel is opened up along its trend between type chamber, is cooled down using the method for conformal cooling, cooling rapidly and uniformly plastics leaf
The production method for taking turns the profile-followed water circuit system and its lower mold core of mold.
To achieve the goals above, the technical solution of the invention is as follows:
A kind of profile-followed water circuit system of plastic impeller mold, it include the panel set gradually from top to bottom, water gap plate, on
Mould, lower die, mode, corresponding in upper mold to be equipped with upper mold core, correspondence is equipped with lower mold core in lower die, offers impeller in lower mold core
Core wheel and several impeller shape chambers circumferentially to radially distribute positioned at impeller core wheel, which is characterized in that two adjacent shape chambers
Between offer cooling water channel, cooling water channel moves towards arrangement along shape chamber and extends to core wheel direction, is equipped in cooling water channel cold
But water circuit system, cooling water channel system have several water inlets, and it is corresponding that each water inlet all has a water outlet, it is each enter
The mouth of a river passes through cooling water pipeline and connects with corresponding water outlet, and water inlet and water outlet are opened in lower die, cooling
Water lines sequentially pass through lower die and mode and arrange to cooling water channel and along cooling water channel.
As preferably, cooling water pipeline includes the water inlet pipe and outlet pipe connecting respectively with water inlet and water outlet,
Water inlet pipe and outlet pipe all have the horizontal segment parallel with lower die face, perpendicular vertical section are connected on horizontal segment, vertically
It is intracavitary to shape that section sequentially passes through lower die and mode.
As preferably, limiting gasket is arranged in the vertical section of water inlet pipe and outlet pipe, limiting gasket is fixed
In on mode.
As preferably, the vertical section of water inlet pipe and outlet pipe is located at the intracavitary one end of shape and is connected separately with the first profile-followed pipe
With the second profile-followed pipe.
As preferably, the first profile-followed pipe and the second profile-followed pipe are divided into two adjacent cooling water channels and along its institute
Cooling water channel move towards arrangement.
As preferably, cooling water pipeline further includes U-shaped parallel transistor, and parallel transistor is inserted on mode and along core wheel
Peripheral direction arrangement, the both ends of parallel transistor sequentially pass through lower die and mode to cooling water channel and respectively with the first profile-followed pipe and the
Two profile-followed pipes are connected with water inlet pipe and connect with the opposite end of outlet pipe.
A kind of production method of lower mold core, it includes following process:
Process 1: select 718H mould steel to make flitch A and flitch B, and make choose flitch A and flitch B it is big
Small shape is identical；
Process 2: selecting interface on flitch A and flitch B, and passes through numerical control CNC in the interface of flitch A and flitch B
On process corresponding pin hole, the interface of flitch A is overlapped with the interface of flitch B, is processed in the centre bit of flitch A
The impeller core wheel for extending to flitch B circumferentially processes the shape chamber with the perforation of the upper and lower end face flitch B in the impeller core wheel of flitch A, and
Corresponding cooling water channel is processed along shape chamber trend between the two adjacent shape chambers on flitch A and flitch B；
Process 3: flitch A and flitch B are placed on grinding machine and are polished interface and make the docking after polishing
The surface roughness in face is at least 0.3 μm, and the depth of parallelism is at least 20 μm；
Process 4: positioning pin being installed in the pin hole of flitch A or flitch B, and positioning pin is inserted into the pin to match therewith
So that flitch A and flitch B is covered conjunction in nail hole and form lower mold core, the lower mold core after synthesis is put into diffusion in vacuum furnace and is welded, is being welded
The in-furnace temperature of diffusion in vacuum furnace, pressure are kept at 930 DEG C and 20MPa when connecing.
Process 5: being made annealing treatment lower mold core to its hardness is HRC34-38；
Process 6: by grinding machine, numerical control CNC, electric spark, slow wire feeding to die joint, the glue plane of lower mold core carry out grinding and
Polishing is to reduce its surface accuracy.
As preferably, the shape surplus for retaining 3mm is also needed when carrying out the sorting of flitch A and flitch B.
As preferably, in diffusion in vacuum furnace to lower mold core carry out welding when it is 18 hours a length of.
As preferably, finishing further comprises cutting useless, chamfering and cutting useless.
Compared with the existing technology, the present invention has the advantages that
Core wheel and shape chamber are offered in lower mold core, offer cooling water channel, cooling water channel edge between two adjacent shape chambers
Shape chamber moves towards distribution, the first profile-followed pipe and the second profile-followed pipe of cooling water channel system is equipped in cooling water channel, first is profile-followed
Pipe and the second profile-followed Guan Jun arrange that the first profile-followed pipe is connected to and is separately connected by parallel transistor with the second profile-followed pipe along cooling water channel
Water inlet pipe and outlet pipe successively pass through the first profile-followed pipe, parallel transistor, the second profile-followed pipe when cooling water is passed through from water inlet pipe and go out
Water pipe can while cool down the shape chamber of the cooling water channel two sides where the first profile-followed pipe and the second profile-followed pipe；Simultaneously as
First manages with the shape with the cooling water channel interphase where the second profile-followed pipe every a common shape chamber, therefore first manages and second with the shape
The shape chamber being located between the two can be cooled down simultaneously when having cooling water to pass through in profile-followed pipe, so that cooling effect mentions significantly
It is high；Meanwhile there is horizontal segment, vertical section sectional design can move towards simultaneously preferably close to shape cavity wall for water inlet pipe and outlet pipe
It is also convenient for repairing clearly and replace.
Lower mold core is welded by folded set of flitch A and flitch B, is walked on flitch A and flitch B along shape chamber respectively before welding
To corresponding cooling water channel is processed, the cooling effect to shape chamber can be maximized when in use, it also need not lower die after shaping
Cooling water channel is processed on core, substantially increases processing efficiency, has saved the Production Time of lower mold core；It is made simultaneously by this method
Lower mold core sound construction, hardness is good, and surface accuracy is high, the quality of the impeller product made needed for further ensuring.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of the invention；
Fig. 2 is the schematic cross-sectional view of the cooling water channel system in overlook direction of the invention；
Fig. 3 is the cooling water channel system structure diagram in side-looking direction of the invention；
Fig. 4 is the portion A enlarged structure schematic diagram of the invention；
Fig. 5 is the integrated structure schematic diagram of lower mold core of the invention；
Fig. 6 is the schematic cross-sectional view of lower mold core of the invention；
Fig. 7 is the schematic diagram of impeller product of the invention.
It is as shown in the figure:
1 panel, 2 water gap plates, 3 upper molds, 4 lower dies, 5 modes, 6 upper mold cores, 7 lower mold cores, 7.1 core wheels, 7.2 shape chambers, 8 is cooling
Water channel, 9 cooling water channel systems, 91 water inlets, 92 water outlets, 93 water inlet pipes, 94 outlet pipes, 95 first profile-followed pipes, 96 second with
Shape pipe, 97 parallel transistors, 10 horizontal segments, 11 vertical sections, 12 limiting gaskets, 13 flitch A, 14 flitch B, 15 pin holes, 16 positioning pins.
Specific embodiment
Invention is further described in detail in the following with reference to the drawings and specific embodiments,
As depicted in figs. 1 and 2, a kind of profile-followed water circuit system of plastic impeller mold, it includes setting gradually from top to bottom
Panel 1, water gap plate 2, upper mold 3, lower die 4, mode 5, corresponding in upper mold 3 to be equipped with upper mold core 6, correspondence is equipped in lower die 4
Lower mold core 7 offers impeller core wheel 7.1 on the centre of lower mold core 7 and radially distributing positioned at core wheel 7.1 is circumferential
Several impeller shape chambers 7.2, mode 5 is installed on the lower section of shape chamber 7.2,
As depicted in figs. 1 and 2, cooling water channel 8 is offered between two adjacent shape chambers 7.2, cooling water channel 8 is along shape chamber
7.2 move towards arrangement and to 7.1 direction of core wheel extend, each cooling water channel 8 by be located at two sides 7.2 wall of shape chamber and be located at it is upper
7 face closure of lower mold core of downside is equipped with for carrying out cooling cooling water channel system 9 to shape chamber 7.2 in cooling water channel 8,
As shown in Fig. 2, cooling water channel system 9 has several water inlets 91, each water inlet 91 all has a water outlet
92 is corresponding, and each water inlet 91 is connected by cooling water pipeline with corresponding water outlet 92, water inlet 91, cooling
Cooling water channel is constituted between water lines and water outlet 92,
Wherein, water inlet 91 and water outlet 92 are opened in lower die 4, and cooling water pipeline sequentially passes through lower die 4 and mode 5
Arrangement is moved towards in cooling water channel 8 and along cooling water channel 8.
As shown in figure 3, further, cooling water pipeline includes the water inlet pipe connecting respectively with water inlet 91 and water outlet 92
93 and outlet pipe 94, water inlet pipe 93 and outlet pipe 94 all have the horizontal segment 10 parallel with 4 face of lower die, be connected on horizontal segment 10
Perpendicular vertical section 11, vertical section 11 pass perpendicularly through in the upper and lower end face to cooling water channel 8 of mode 5, if being arranged when simultaneously
When dry water inlet pipe 93 and outlet pipe 94 horizontal segment 10 and vertical section 11 make pipeline no longer and be in it is single be horizontally orientated to, can be better
Close to 7.2 wall of shape chamber, while moving towards to be also convenient for repairing clearly and replace.
As shown in figure 4, it is further, limiting gasket is arranged in the vertical section 11 of water inlet pipe 93 and outlet pipe 94
12, limiting gasket 12 is used to keep stablizing by the vertical section 11 of water inlet pipe 93 and outlet pipe 94, and limiting gasket 12 is fixed on mode 5
On.
As shown in figure 3, further, the vertical section 11 of water inlet pipe 93 and outlet pipe 94 is located at one end in cooling water channel 8
It is connected separately with the first profile-followed pipe 95 and the second profile-followed pipe 96, the first profile-followed pipe 95 and the second profile-followed pipe 96 are to positioned at cooling
The shape chamber 7.2 of 8 two sides of water channel is cooled down.
As shown in Fig. 2, further, the first profile-followed pipe 95 and the second profile-followed pipe 96 are juxtaposed on two adjacent coolings
It is arranged in water channel 8 and along the direction of moving towards of cooling water channel 8.
As shown in Fig. 2, further, cooling water pipeline further includes U-shaped parallel transistor 97, and parallel transistor 97 is inserted in mode
It is arranged on 5 and along the peripheral direction of core wheel 7.1, it is to shape chamber 7.2 and profile-followed with first respectively that the both ends of parallel transistor 97 pass through mode 5
Pipe 95 is connected with the second opposite water inlet pipe 93 of profile-followed pipe 96 with one end of outlet pipe 94, after cooling water is passed through, the first profile-followed pipe
95 and second profile-followed pipe 96 can simultaneously to be located at its two sides shape chamber 7.2 cool down.
In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, when carrying out the cooling for impeller mold, by external fluid delivery conduit be opened in
Water inlet 91 in lower die 4 is connected to and is passed through cooling water from water inlet 91, and cooling water successively passes through water inlet pipe from water inlet 91
93 horizontal segment 10, vertical section 11 simultaneously enter along the first profile-followed pipe 95 along vertical section 11, and the first profile-followed pipe 95 is walked with shape chamber 7.2
It, can be to the shape chamber of 8 two sides of cooling water channel where the first profile-followed pipe 95 when cooling water passes through the first profile-followed pipe 95 to consistent
7.2 are cooled down, and cooling water enters parallel transistor 97 from the first profile-followed pipe 95 and is passed through in the second profile-followed pipe 96 later, and second is profile-followed
Pipe 96 is equally consistent with the trend of shape chamber 7.2, and cooling water can be to the second profile-followed 96 place of pipe when passing through the second profile-followed pipe 96
The shape chamber 7.2 of 8 two sides of cooling water channel is cooled down, due to the cooling water channel 8 where the first profile-followed pipe 95 and the second profile-followed pipe 96
Interphase is every a common shape chamber 7.2, therefore while having cooling water to pass through in the first profile-followed pipe 95 and the second profile-followed pipe 96 can be simultaneously
The shape chamber 7.2 being located between the two is cooled down, so that cooling effect greatly improves, last cooling water can be profile-followed by second
Pipe 96 is passed through the vertical section 11 of outlet pipe 94 and through 10 pass-out water outlet 92 of horizontal segment, and remaining cooling water pipeline is with same side
Formula simultaneously cools down shape chamber 7.2, so that it is cooling uniform inside shape chamber 7.2, it will not be led because of the even generation hot spot of inhomogeneous cooling
Cause mold buckling deformations.
As shown in Figure 5 and Figure 6, a kind of production method of lower mold core, it includes following process:
Process 1: 718H mould steel is selected to make flitch A13 and flitch B14, and makes the flitch A13 chosen and material
The size shape of plate B14 is identical；
Process 2: interface is selected on flitch A13 and flitch B14, and by numerical control CNC in flitch A13 and flitch B14
Interface on process corresponding pin hole 15, the interface of flitch A13 is overlapped with the interface of flitch B14, in flitch
The centre bit of A13 processes the impeller core wheel 7.1 for extending to flitch B13, the impeller core wheel 7.1 of flitch A it is circumferential process with
The shape chamber 7.2 of the upper and lower end face flitch B14 perforation, and along shape between the two adjacent shape chambers 7.2 on flitch A13 and flitch B14
The trend of chamber 7.2 processes corresponding cooling water channel 8；
Process 3: flitch A13 and flitch B14 are placed on grinding machine and are polished interface and made after polishing
The surface roughness of interface is at least 0.3 μm, and the depth of parallelism is at least 20 μm；
Process 4: positioning pin 16 being installed in the pin hole 15 of flitch A13 or flitch B14, and by positioning pin 16 insertion with
Matching pin hole 15 in so that flitch A13 and flitch B14 is covered to close and is formed lower mold core 7, the lower mold core 7 after synthesis is put into vacuum
It is welded in diffusion furnace, the in-furnace temperature of diffusion in vacuum furnace, pressure is kept at 930 DEG C and 20MPa in welding.
Process 5: being made annealing treatment lower mold core 7 to its hardness is HRC34-38；
Process 6: die joint, the glue plane of lower mold core 7 are ground by grinding machine, numerical control CNC, electric spark, slow wire feeding
With polishing to reduce its surface accuracy.
Further, the shape surplus for retaining 3mm is also needed when carrying out the sorting of flitch A13 and flitch B14.
Further, in diffusion in vacuum furnace to lower mold core 7 carry out welding when it is 18 hours a length of.
Further, finishing further comprises cutting cutting after useless, chamfering and chamfering for die joint, glue plane
It is useless, so that the surface accuracy of die joint, glue plane further increases.
The above embodiments and description only illustrate the principle of the present invention and most preferred embodiment, is not departing from this
Under the premise of spirit and range, various changes and improvements may be made to the invention, these changes and improvements both fall within requirement and protect
In the scope of the invention of shield.
Claims (10)
1. a kind of profile-followed water circuit system of plastic impeller mold, it includes: panel (1), the water gap plate set gradually from top to bottom
(2), upper mold (3), lower die (4), mode (5), correspondence is equipped with upper mold core (6) in the upper mold (3), right in the lower die (4)
It should be equipped with lower mold core (7), impeller core wheel be offered on the lower mold core (7) and positioned at circumferentially radial point of impeller core wheel
Several impeller shape chambers (7.2) of cloth, which is characterized in that offer cooling water channel between the shape chamber (7.2) of adjacent two
(8), the cooling water channel moves towards arrangement along the shape chamber (7.2) and extends to core wheel (7.1) direction, the cooling water channel (8)
In be equipped with cooling water channel system (9), the cooling water channel system (9) have several water inlets (91), each water inlet
(91) it is corresponding to all have a water outlet (92), each water inlet (91) is by cooling water pipeline (93) the same as right with it
Water outlet (92) connection answered, the water inlet (91) and water outlet (92) are opened on the lower die (4), the cooling water
Pipeline (93) sequentially passes through the lower die (4) and mode (5) and arranges to the cooling water channel (8) and along the cooling water channel (8).
2. a kind of profile-followed water circuit system of plastic impeller mold according to claim 1, which is characterized in that the cooling water
Pipeline (93) includes the water inlet pipe (93) and outlet pipe (94) connecting respectively with the water inlet and (91) water outlet (92), described
Water inlet pipe (93) and outlet pipe (94) all have the horizontal segment parallel with the lower die (4) face (10), on the horizontal segment (10)
It is connected with perpendicular vertical section (11), the vertical section (11) sequentially passes through the lower die (4) and mode (5) to the shape
In chamber (7.2).
3. a kind of profile-followed water circuit system of plastic impeller mold according to claim 2, which is characterized in that the water inlet pipe
(93) and in the vertical section (11) of outlet pipe (94) it is arranged with limiting gasket (12), the limiting gasket (12) is fixed on institute
It states on mode (5).
4. a kind of profile-followed water circuit system of plastic impeller mold according to claim 2, which is characterized in that the water inlet pipe
(93) it is located at the interior one end of the shape chamber (7.2) with the vertical section (11) of the outlet pipe (94) and is connected separately with the first profile-followed pipe
(95) and second manages (96) with the shape.
5. a kind of profile-followed water circuit system of plastic impeller mold according to claim 3, which is characterized in that described first with
Shape pipe (95) and the second profile-followed pipe (96) is divided into two adjacent cooling water channels (8) and the cooling water channel where it
(8) move towards arrangement.
6. a kind of profile-followed water circuit system of plastic impeller mold according to claim 4, which is characterized in that the cooling water
Pipeline further includes U-shaped parallel transistor (97), and the parallel transistor (97) is inserted on the mode (5) and along core wheel (7.1)
Peripheral direction arrangement, the both ends of the parallel transistor (97) sequentially pass through the lower die (4) and mode (5) to the cooling water channel
(8) and respectively the water inlet pipe (93) and outlet pipe (94) are connected with the described first profile-followed pipe (95) and the second profile-followed pipe (96)
Opposite end connection.
7. a kind of production method of lower mold core, which is characterized in that it includes following process:
Process 1: 718H mould steel is selected to make flitch A (13) and flitch B (14), and makes the flitch A chosen
(13) identical as the size shape of flitch B (14)；
Process 2: interface is selected on the flitch A (13) and flitch B (14), and by numerical control CNC in the flitch A (13)
With corresponding pin hole (15) is processed on the interface of flitch B (14), by the interface of the flitch A (13) and flitch B
(14) interface is overlapped, and the impeller core wheel for extending to the flitch B (13) is processed in the centre bit of the flitch A (13)
(7.1), the shape chamber with (14) upper and lower end face flitch B perforation is circumferentially processed in the impeller core wheel (7.1) of the flitch A
(7.2), and between the two adjacent shape chambers (7.2) on the flitch A (13) and flitch B (14) add along shape chamber (7.2) trend
Work goes out corresponding cooling water channel (8)；
Process 3: the flitch A (13) and flitch B (14) are placed on grinding machine and are polished interface and to polish
The surface roughness of interface afterwards is at least 0.3 μm, and the depth of parallelism is at least 20 μm；
Process 4: positioning pin (16) being installed in the pin hole (15) of the flitch A (13) or flitch B (14), and by positioning pin
(16) make the flitch A (13) and flitch B (14) cover conjunction in the pin hole (15) that insertion matches therewith to be formed lower mold core (7), it will
Lower mold core (7) after synthesis, which is put into diffusion in vacuum furnace, welds, and distinguishes the in-furnace temperature of diffusion in vacuum furnace, pressure in welding
It is maintained at 930 DEG C and 20MPa.
Process 5: being made annealing treatment lower mold core (7) to its hardness is HRC34-38；
Process 6: by grinding machine, numerical control CNC, electric spark, slow wire feeding to die joint, the glue plane of lower mold core (7) carry out grinding and
Polishing is to reduce its surface accuracy.
8. a kind of production method of lower mold core according to claim 1, which is characterized in that carrying out the flitch A (13)
With the shape surplus for retaining 3mm is also needed when the sorting of flitch B (14).
9. a kind of production method of lower mold core according to claim 7, which is characterized in that described in diffusion in vacuum furnace
Lower mold core (7) carry out welding when it is 18 hours a length of.
10. a kind of production method of lower mold core according to claim 1, which is characterized in that finishing further comprises cutting
It useless, chamfering and cuts useless.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181781A (en) * | 2019-06-10 | 2019-08-30 | 江苏博联硕焊接技术有限公司 | A kind of conformal cooling mold and its processing method |
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Address after: No. 01, Building 2, No. 150, Huihai Road, Chunxiao, Beilun District, Ningbo City, Zhejiang Province, 315800 Applicant after: NINGBO YUFINE MOULD & PLASTICS CO.,LTD. Address before: No. 358 Wutaishan Road, Beilun District, Ningbo City, Zhejiang Province 315800 Applicant before: NINGBO YUFINE MOULD & PLASTICS CO.,LTD. |
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Address after: No. 01, Building 2, No. 150, Huihai Road, Chunxiao, Beilun District, Ningbo City, Zhejiang Province, 315800 Applicant after: Ningbo Yufang Precision Industry Co.,Ltd. Address before: No. 01, Building 2, No. 150, Huihai Road, Chunxiao, Beilun District, Ningbo City, Zhejiang Province, 315800 Applicant before: NINGBO YUFINE MOULD & PLASTICS CO.,LTD. |
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