CN210940289U - Washing machine lid injection mold - Google Patents
Washing machine lid injection mold Download PDFInfo
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- CN210940289U CN210940289U CN201921599366.XU CN201921599366U CN210940289U CN 210940289 U CN210940289 U CN 210940289U CN 201921599366 U CN201921599366 U CN 201921599366U CN 210940289 U CN210940289 U CN 210940289U
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- washing machine
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Abstract
The utility model relates to a washing machine cover injection mold, which comprises an upper template, a middle plate, an upper mold base, a lower mold base, supporting blocks, a lower template, a top flitch positioned between the supporting blocks and a split pouring device, wherein the upper template, the middle plate, the upper mold base, the lower mold base, the supporting blocks and the lower template are arranged in sequence from top to bottom; the bottom of the upper mold core is provided with a cover outer surface cavity, and the top of the upper mold core is provided with a plurality of upper cold water holes; the top of the lower mold core is provided with a cover inner surface mold core and a plurality of material ejection holes, the cover inner surface mold core and the cover outer surface mold cavity form a molding cavity, and the bottom of the molding cavity is provided with a lower cold water hole; the sliding block core-pulling device is arranged on the lower die base and is positioned on one side of the lower die core, and the sliding block core-pulling device is used for forming a handle hole; and one end of the ejector rod is movably inserted into the ejector hole, and the other end of the ejector rod is fixed on the ejector plate. The mould keeps the product round, the deformation is small, and the yield of the product is high.
Description
Technical Field
The utility model relates to an injection mold, especially washing machine lid injection mold.
Background
As shown in fig. 15 to 17, the washing machine cover 9 of the drum washing machine has a circular ring shape, but is eccentrically disposed, and a handle hole 91 is formed at one side of the washing machine cover 9, and a hinge hole is formed at the opposite side of the handle hole 91. The eccentric arrangement of the cover 9 of the washing machine causes uneven materials, most of the existing molds are injected from the center through a glue injection port, so that uneven feeding is caused, the injected products are easy to become oval and easy to warp, and the yield is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a washing machine lid injection mold that injection moulding product warp for a short time, and the yield is high, concrete technical scheme is:
the washing machine cover injection mold comprises an upper template, a middle plate, an upper mold base, a lower mold base, supporting blocks, a lower template and a material ejecting plate positioned between the supporting blocks, wherein the upper template, the middle plate, the upper mold base, the lower mold base, the supporting blocks and the lower template are sequentially arranged from top to bottom; the upper die core is fixed on the upper die base, a cover outer surface cavity is formed in the bottom of the upper die core and communicated with the auxiliary sprue bush, and a plurality of upper cold water holes are formed in the top of the upper die core; the lower die core is fixed on the lower die base, a cover inner surface core is arranged at the top of the lower die core, a plurality of material ejection holes are formed in the cover inner surface core, the cover inner surface core and a cover outer surface cavity form a forming cavity, and a lower cold water hole is formed in the bottom of the lower die core; the sliding block core-pulling device is arranged on the lower die base and is positioned on one side of the lower die core, and the sliding block core-pulling device is used for forming a handle hole; and one end of the ejector rod is movably inserted into the ejector hole, and the other end of the ejector rod is fixed on the ejector plate.
Through adopting above-mentioned technical scheme, a plurality of follow the runner cover and mould plastics and can effectively reduce the inhomogeneous phenomenon of feeding, make the feeding even in the shaping chamber to guarantee that the product does not produce the ellipse, carry out quick cooling through setting up the cold water hole, reduce and warp.
Preferably, the number of the slave sprue bush is three.
Preferably, the device further comprises a sprue bush control device, the sprue bush control device comprises electromagnetic valves, the number of the electromagnetic valves is the same as that of the slave sprue bushes, and the electromagnetic valves are connected with the slave sprue bushes through air pipes.
By adopting the technical scheme, the valve needle is arranged in the sprue bush and is controlled by high-pressure air, the sprue bush with the valve needle is an existing mature product, and the structure of the sprue bush is not described in detail. The switch of the valve needle in the sprue bush is controlled through the electromagnetic valve, the electromagnetic valve is opened, the valve needle in the sprue bush is opened, injection is carried out, when the electromagnetic valve is closed, the valve needle in the sprue bush is closed, and feeding of the material from the sprue bush connected with the electromagnetic valve is stopped. The cover of the washing machine is divided into a plurality of areas by the plurality of slave sprue bushes, when a certain area is subjected to buckling deformation, the injection time of the slave sprue bush of the area is controlled, the slave sprue bush of the area is subjected to injection molding later than other sprue bushes or stops injection molding earlier than other slave sprue bushes, the buckling deformation is controlled by controlling the feeding amount of different areas, and meanwhile, the ellipse can be controlled, so that the product can keep a round shape.
Preferably, the sub-runners are further provided with heating wires, and the heating wires are respectively located on the top surfaces and the bottom surfaces of the sub-runners.
By adopting the technical scheme, the heating wire prevents the plastic in the sub-runner from being solidified, so that the plastic is kept in a liquid state and is kept at a proper temperature.
Preferably, a plurality of arc-shaped first cooling water paths are arranged on the upper die core; and a second cooling water channel matched with the first cooling water channel is arranged on the upper die base, the second cooling water channel is communicated with the first cooling water channel, and a water inlet of the second cooling water channel is positioned on the side surface of the upper die base.
By adopting the technical scheme, the arc-shaped cooling water channel is similar to the washing machine cover in shape, so that the cooling efficiency can be improved.
Preferably, the slider core-pulling device comprises a fixed seat, and the fixed seat is installed on the upper die base; the two core pulling rods are obliquely arranged on the fixed seat; the core pulling seat is slidably mounted on the lower die seat and located on one side of the lower die core, a core pulling core is arranged at one end of the core pulling seat, a driving hole is formed in the other end of the core pulling seat, the driving hole is an inclined hole, and the core pulling rod is movably inserted into the driving hole; and the sliding baffles are fixed on the lower die seat, positioned on two sides of the core pulling seat respectively and connected with the core pulling seat in a sliding manner.
By adopting the technical scheme, the forming of the handle hole is realized through the sliding block core pulling device, so that the structure is simple.
Preferably, a plurality of exhaust grooves are formed in the periphery of the cavity in the outer surface of the cover and are communicated with the cavity in the outer surface of the cover, a plurality of arc-shaped communication grooves are further formed in the bottom of the upper mold core, one side of each communication groove is communicated with the exhaust groove, an air outlet groove is formed in the other side of each communication groove, and one tail end of each air outlet groove is located on the side face of the lower mold core.
Through adopting above-mentioned technical scheme, exhaust effect can effectively be guaranteed to a plurality of air discharge ducts to guarantee the completion of moulding plastics.
Compared with the prior art the utility model discloses following beneficial effect has:
the utility model provides a washing machine lid injection mold moulds plastics through a plurality of runner covers, thereby the deformation of the speed of moulding plastics of each runner cover of simultaneous control reduces the product to make the product keep circular, the yield of product is high.
Drawings
FIG. 1 is a schematic structural view of an injection mold for a cover of a washing machine;
FIG. 2 is a schematic cross-sectional view of an injection mold for a cover of a washing machine;
FIG. 3 is a schematic view of an assembled structure of the upper mold plate, the split flow casting device, the intermediate plate, the upper mold base and the upper mold core;
FIG. 4 is a schematic view of the split stream pouring apparatus mounted on an intermediate plate;
FIG. 5 is a schematic view of the construction of a split-flow casting apparatus;
FIG. 6 is a schematic structural view of the upper plate;
FIG. 7 is a rear view of the upper core;
FIG. 8 is a front view of the upper mold core;
FIG. 9 is a schematic view of an assembly structure of the lower mold core, the lower mold base, the lower mold plate, the supporting block and the ejector plate;
FIG. 10 is a schematic view of the structure of FIG. 9 with the lower core hidden;
FIG. 11 is a schematic structural view of a lower core;
FIG. 12 is a rear view of the lower core;
FIG. 13 is a schematic structural diagram of a slider core-pulling device;
FIG. 14 is a schematic view of the structure of the core pulling seat;
FIG. 15 is a schematic perspective view of a cover of the washing machine;
FIG. 16 is a front view of the lid of the washing machine;
fig. 17 is a rear view of the washing machine lid.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 14, the injection mold for the cover of the washing machine comprises an upper mold plate 11, an intermediate plate 12, an upper mold base 13, a lower mold base 14, supporting blocks 15, a lower mold plate 16, a material ejecting plate 17 positioned between the supporting blocks 15 and a split pouring device, wherein the split pouring device comprises a main sprue bush 21 and a secondary sprue bush 23 which are connected with a split runner 22, the number of the secondary sprue bushes 23 is not less than two, one end of the main sprue bush 21 is arranged on the upper mold plate 11, and the secondary sprue bush 23 is fixed on the intermediate plate 12; the upper die core 3 is fixed on the upper die base 13, a cover outer surface cavity 31 is arranged at the bottom of the upper die core 3, the cover outer surface cavity 31 is communicated with the slave sprue bush 23, and a plurality of upper cold water holes 37 are formed in the top of the upper die core 3; the lower die core 4 is fixed on the lower die base 14, the top of the lower die core 4 is provided with a cover inner surface die core 41, the cover inner surface die core 41 is provided with a plurality of material ejection holes 42, the cover inner surface die core 41 and the cover outer surface die cavity 31 form a forming cavity, and the bottom of the lower die core 4 is provided with a lower cold water hole 43; the sliding block core-pulling device is arranged on the lower die base 14 and is positioned on one side of the lower die core 4, and the sliding block core-pulling device is used for forming a handle hole; and one end of the ejector rod is movably inserted into the ejector hole 42, and the other end of the ejector rod is fixed on the ejector plate 17.
A plurality of from pouring gate cover 23 mould plastics and can effectively reduce the inhomogeneous phenomenon of feeding, make the feeding even in the shaping chamber to guarantee that the product does not produce the ellipse, carry out quick cooling through setting up the cold water hole, reduce and warp.
The number of the auxiliary sprue bush 23 is three, the top of the upper mold core 3 is provided with three glue inlets 36, and the three glue inlets 36 are approximately equally divided. The glue inlet 36 is communicated with the cover outer surface cavity 31.
One end of the supporting block 15 is provided with a travel switch 18, the travel switch 18 is used for detecting whether the ejector plate 17 moves in place, and injection molding can be carried out only when the travel switch 18 detects a signal. The ejector rod is used for ejecting the cover of the washing machine from the lower mold core 4.
The automatic control device of the sprue bush comprises three electromagnetic valves 24, and the three electromagnetic valves 24 are connected with the slave sprue bush 23 through air pipes. The solenoid valve 24 is fixed to a valve island fixed to the intermediate plate 12.
The valve needle is arranged in the sprue bush 23 and controlled by high-pressure air, the sprue bush with the valve needle is an existing mature product, and the structure of the sprue bush is not described in detail. The opening and closing of the needle inside the sprue bush 23 are controlled by the solenoid valve 24, the solenoid valve 24 is opened, the needle in the sprue bush 23 is opened, the injection is performed, when the solenoid valve 24 is closed, the needle in the sprue bush 23 is closed, and the feeding from the sprue bush 23 connected to the solenoid valve 24 is stopped. The cover of the washing machine is divided into a plurality of areas by the plurality of slave sprue bushes 23, when a certain area is subjected to warping deformation, the injection time of the slave sprue bush 23 of the area is controlled, the slave sprue bush 23 of the area is subjected to injection later than other slave sprue bushes 23 or stops injection earlier than other slave sprue bushes 23, the warping deformation is controlled by controlling the feeding amount of different areas, and the ellipse is controlled, so that the product is kept in a round shape.
The branch channel 22 is further provided with a heating wire 25, and the heating wire 25 is respectively positioned on the top surface and the bottom surface of the branch channel 22. The hot wire 25 prevents the plastic in the runner 22 from solidifying, keeping the plastic liquid and at a suitable temperature.
A plurality of arc-shaped first cooling water paths 37 are arranged on the upper mold core 3; a second cooling water channel 131 matched with the first cooling water channel 37 is arranged on the upper die holder 13, the second cooling water channel 131 is communicated with the first cooling water channel 37, and a water inlet 132 of the second cooling water channel 131 is positioned on the side surface of the upper die holder 13. The arc-shaped cooling water path is similar to the washing machine cover in shape, so that the cooling efficiency can be improved.
The slide block core pulling device comprises a fixed seat 51, and the fixed seat 51 is arranged on the upper die base 13; the core-pulling rod 52 is obliquely arranged on the fixed seat 51, and two core-pulling rods 52 are arranged; the core pulling seat 53 is slidably mounted on the lower die holder 14 and is positioned at one side of the lower die core 4, one end of the core pulling seat 53 is provided with a core pulling core 531, the other end of the core pulling seat is provided with a driving hole 535, and the driving hole 535 is an inclined hole; and the sliding baffle plates 54 are fixed on the lower die seat 14, and the sliding baffle plates 54 are respectively positioned at two sides of the core pulling seat 53 and are in sliding connection with the core pulling seat 53. The handle hole is formed through the slider core pulling device, so that the structure is simple.
A water inlet hole 532 is formed in the core drawing seat 53, the water inlet hole 532 is positioned on one side of the core drawing seat 53 far away from one end of the lower mold core 4, and the water outlet hole 534, the water outlet hole 534 and the water inlet hole 532 are positioned on the other side of the same end of the core drawing seat 53; and the communicating hole 533 is positioned at the other end of the core pulling seat 53, the communicating hole 533 is positioned on the core pulling core 531, and the communicating hole 533 is respectively communicated with the water inlet hole 532 and the water outlet hole 534. Through cooling the seat of loosing core 53 to guarantee that the cooling rate of handle hole is unanimous with holistic cooling rate, avoid the cooling rate nonconformity to lead to handle hole department to warp.
A plurality of exhaust grooves 32 are formed in the outer side of the cover outer surface cavity 31, the exhaust grooves 32 are communicated with the cover outer surface cavity 31, a plurality of arc-shaped communication grooves 33 are further formed in the bottom of the upper mold core 3, one side of each communication groove 33 is communicated with the exhaust groove 32, an air outlet groove 34 is formed in the other side of each communication groove 33, and one tail end of each air outlet groove 34 is located on the side face of the lower mold core 4. The inside of the cover outer surface cavity 31 is also provided with a plurality of annularly arranged 35 inner vent grooves. The exhaust grooves 32 can effectively ensure the exhaust effect, thereby ensuring the completeness of injection molding. The arc-shaped communication groove 33 reduces the number of the air outlet grooves 34, and avoids the influence of excessive number of the air outlet grooves 34 on the injection molding tightness.
The utility model provides a washing machine lid injection mold moulds plastics through a plurality of runner covers, thereby the deformation of the speed of moulding plastics of each runner cover of simultaneous control reduces the product to make the product keep circular, the yield of product is high.
Claims (8)
1. The injection mold for the cover of the washing machine comprises an upper template, a middle plate, an upper mold base, a lower mold base, supporting blocks, a lower template and a material ejecting plate positioned between the supporting blocks, which are sequentially arranged from top to bottom, and is characterized by further comprising a shunting pouring device, wherein the shunting pouring device comprises a main sprue bush and a secondary sprue bush which are connected with a shunting channel, the number of the secondary sprue bushes is not less than two, one end of the main sprue bush is arranged on the upper template, and the secondary sprue bush is fixed on the middle plate;
the upper die core is fixed on the upper die base, a cover outer surface cavity is formed in the bottom of the upper die core and communicated with the auxiliary sprue bush, and a plurality of upper cold water holes are formed in the top of the upper die core;
the lower die core is fixed on the lower die base, a cover inner surface core is arranged at the top of the lower die core, a plurality of material ejection holes are formed in the cover inner surface core, the cover inner surface core and a cover outer surface cavity form a forming cavity, and a lower cold water hole is formed in the bottom of the lower die core;
the sliding block core-pulling device is arranged on the lower die base and is positioned on one side of the lower die core, and the sliding block core-pulling device is used for forming a handle hole; and
and one end of the ejector rod is movably inserted into the ejector hole, and the other end of the ejector rod is fixed on the ejector plate.
2. The washing machine lid injection mold of claim 1, wherein there are three slave sprue bushings.
3. Washing machine lid injection mold according to claim 1,
the device comprises a sprue bush control device, wherein the sprue bush control device comprises electromagnetic valves, the number of the electromagnetic valves is consistent with that of slave sprue bushes, and the electromagnetic valves are connected with the slave sprue bushes through air pipes.
4. The washing machine cover injection mold according to claim 1, wherein the sub-runners are further provided with heating wires respectively located on top and bottom surfaces of the sub-runners.
5. The washing machine cover injection mold according to claim 1, wherein a plurality of arc-shaped first cooling water paths are arranged on the upper mold core; and a second cooling water channel matched with the first cooling water channel is arranged on the upper die base, the second cooling water channel is communicated with the first cooling water channel, and a water inlet of the second cooling water channel is positioned on the side surface of the upper die base.
6. Washing machine lid injection mold according to claim 1,
the sliding block core pulling device comprises
The fixed seat is arranged on the upper die base;
the two core pulling rods are obliquely arranged on the fixed seat;
the core pulling seat is slidably mounted on the lower die seat and located on one side of the lower die core, a core pulling core is arranged at one end of the core pulling seat, a driving hole is formed in the other end of the core pulling seat, the driving hole is an inclined hole, and the core pulling rod is movably inserted into the driving hole; and
and the sliding baffle plates are fixed on the lower die base, are respectively positioned on two sides of the core pulling base and are in sliding connection with the core pulling base.
7. Washing machine lid injection mold according to claim 6,
the core-pulling seat is provided with
A water inlet hole which is positioned at one side of the core-pulling seat far away from one end of the lower mold core,
the water outlet and the water inlet are positioned on the other side of the same end of the core pulling seat; and
the intercommunicating hole is positioned at the other end of the core pulling seat and is respectively communicated with the water inlet hole and the water outlet hole.
8. The washing machine cover injection mold according to claim 1, wherein a plurality of air discharge grooves are formed around the cavity of the outer surface of the cover, the air discharge grooves are communicated with the cavity of the outer surface of the cover, a plurality of arc-shaped communication grooves are further formed in the bottom of the upper mold core, one side of each communication groove is communicated with the air discharge groove, an air outlet groove is formed in the other side of each communication groove, and one tail end of each air outlet groove is located on the side surface of the lower mold core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921599366.XU CN210940289U (en) | 2019-09-24 | 2019-09-24 | Washing machine lid injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921599366.XU CN210940289U (en) | 2019-09-24 | 2019-09-24 | Washing machine lid injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210940289U true CN210940289U (en) | 2020-07-07 |
Family
ID=71370190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921599366.XU Active CN210940289U (en) | 2019-09-24 | 2019-09-24 | Washing machine lid injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210940289U (en) |
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2019
- 2019-09-24 CN CN201921599366.XU patent/CN210940289U/en active Active
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