CN216506432U - Washing machine impeller insert injection mold with quick cooling structure of die cavity - Google Patents
Washing machine impeller insert injection mold with quick cooling structure of die cavity Download PDFInfo
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- CN216506432U CN216506432U CN202122684082.4U CN202122684082U CN216506432U CN 216506432 U CN216506432 U CN 216506432U CN 202122684082 U CN202122684082 U CN 202122684082U CN 216506432 U CN216506432 U CN 216506432U
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Abstract
The utility model belongs to the technical field of molds, and particularly relates to an injection mold for an insert of a washing machine impeller, which is provided with a rapid cavity cooling structure. The injection molding device comprises an injection molding lower die and an injection molding upper die, wherein an injection molding piece is arranged above the injection molding upper die. In the injection molding process, the lower part of the impeller molding is used for assisting in molding the lower part structure of the impeller insert of the washing machine, the multi-runner cooling auxiliary molding assembly is used for assisting in molding the upper part structure of the impeller insert of the washing machine, the impeller insert molding piece is used for assisting in molding the middle part structure of the impeller insert of the washing machine to form a complete mold cavity structure, beryllium copper is adopted to improve the cooling efficiency of the cavity, the cavity structure is optimized through end flow analysis, the cooling time of the mold is further reduced, the multi-runner cooling auxiliary molding assembly adopts the multi-runner cooling structure, the cooling speed is high, molten materials are injected into the cavity through the injection molding piece, and after the injection molding is completed, the molded plastic piece is ejected through the ejection part.
Description
Technical Field
The utility model belongs to the technical field of molds, and relates to a washing machine impeller insert injection mold with a rapid cavity cooling structure.
Background
The impeller of the washing machine needs to rotate at high speed in the working process, and the requirements on the radial and end-to-end sizes of the impeller are high, so that radial runout and end-to-end runout are important performance indexes for measuring the quality of the impeller. Because the impeller is the working of plastics, in the plastic forming process, can cause the product actual dimension precision to be difficult to control because of reasons such as shrink, in the production process of moulding plastics, need longer cooling time, the die cavity cooling efficiency is comparatively general, moulds the precision of piece and is difficult to guarantee.
In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses a washing machine pulsator mold [ application number: 201520445932.7], the cooling water path at the position corresponding to the intensive rib position at the center of the impeller on the die can be designed at will according to the shape of the product, thus ensuring the uniform cooling of the product, improving the cooling efficiency and reducing the deformation of the product. In the washing machine impeller mould, a cavity insert of a male mould comprises a central insert, and a conformal cooling water channel formed by 3D printing is arranged in the central insert; along the cooling water flow direction, the shape-following cooling water path comprises a water inlet section water path, a cooling section water path and a water outlet section water path, the water inlet section water path and the water outlet section water path are positioned in the annular base, and the cooling section water paths in the adjacent insert teeth are sequentially communicated. The center insert is arranged at the position, corresponding to the intensive rib position at the center of the impeller, of the mold cavity insert, the center insert is provided with the shape following cooling water path through the 3D printing technology, the cooling water path can be designed at will according to the shape of the intensive rib position at the center of the impeller, shape following cooling is achieved, uniform cooling of a product is guaranteed, and deformation of the product is reduced. However, in the injection molding production process, the longer cooling time is still needed, the cooling efficiency of the cavity is more general, and the precision of the plastic part is difficult to guarantee.
Disclosure of Invention
The utility model aims to solve the problems and provides an injection mold for an insert of a washing machine impeller, which is provided with a rapid cavity cooling structure.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a washing machine impeller inserts injection mold with quick cooling structure of die cavity, includes the lower mould of moulding plastics and moulds plastics the mould, mould plastics and be equipped with the injection molding above the mould, the lower mould of moulding plastics on be equipped with impeller shaping lower part, the lower mould of moulding plastics and mould plastics between be equipped with impeller inserts formed part, mould plastics and be equipped with multithread way cooling auxiliary forming subassembly in the mould, impeller inserts formed part be located between multithread way cooling auxiliary forming subassembly and the impeller shaping lower part, mould plastics lower mould below be equipped with ejecting portion.
In foretell washing machine impeller inserts injection mold who has quick cooling structure of die cavity, multithread way cooling auxiliary forming subassembly including setting up a plurality of impeller auxiliary forming lugs in the mould of moulding plastics, a plurality of impeller auxiliary forming lugs be annular array along mould central point of moulding plastics and distribute, be equipped with the auxiliary forming cavity between two adjacent impeller auxiliary forming lugs, impeller auxiliary forming lug and auxiliary forming cavity match with the shape of impeller shaping lower part respectively and fit for, impeller auxiliary forming lug on be equipped with the multithread way cooling piece.
In the washing machine impeller insert injection mold with the rapid cavity cooling structure, the impeller auxiliary forming protruding blocks and the auxiliary forming concave cavities are arranged in a staggered mode, the multi-runner cooling piece comprises a middle cooling runner and a side cooling runner which are arranged on the impeller auxiliary forming protruding blocks, and the middle cooling runner and the side cooling runner respectively correspond to the positions of the lower part of the impeller forming.
In the washing machine impeller insert injection mold with the rapid cavity cooling structure, the side cooling flow passages are arranged in an arc shape, a plurality of impeller small hole forming lugs are further arranged on the impeller auxiliary forming lugs, and the middle cooling flow passages and the side cooling flow passages are respectively arranged in a staggered mode with the impeller small hole forming lugs.
In foretell washing machine impeller inserts injection mold with quick cooling structure of die cavity, impeller shaping lower part including set up a plurality of impeller flabellum protruding pieces on the lower mould of moulding plastics, a plurality of impeller flabellum protruding pieces be annular array along moulding plastics lower mould central point and distribute, impeller flabellum protruding piece and the position of auxiliary forming cavity corresponding and the shape match and be fit for.
In the washing machine impeller insert injection mold with the rapid cavity cooling structure, the injection lower mold is internally provided with an insert fixing hole, and the impeller insert forming part is matched with the insert fixing hole in a clamping manner.
In foretell washing machine impeller inserts injection mold who has quick cooling structure of die cavity, impeller inserts formed part including set up the inserts middle part shaping piece in the inserts fixed orifices, inserts middle part shaping piece corresponding with the position of impeller flabellum protruding piece, inserts middle part shaping piece on be equipped with axle center shaping portion.
In the washing machine impeller insert injection mold with the rapid cavity cooling structure, the axis forming part comprises an axis forming cylinder arranged on the insert middle forming block, and the axis forming cylinder is in butt fit with the injection upper mold.
In the washing machine impeller insert injection mold with the rapid cavity cooling structure, the injection molding piece comprises an injection molding main plate arranged above an injection molding upper mold, and an injection molding main hole is formed in the injection molding main plate.
In the washing machine impeller insert injection mold with the rapid cavity cooling structure, the ejection part comprises an ejector rod fixing plate arranged below the injection lower mold, and the ejector rod fixing plate is provided with a limiting connecting plate.
Compared with the prior art, the utility model has the advantages that:
1. in the injection molding process, the lower part of the impeller molding is used for assisting in molding the lower part structure of the impeller insert of the washing machine, the multi-runner cooling auxiliary molding assembly is used for assisting in molding the upper part structure of the impeller insert of the washing machine, the impeller insert molding piece is used for assisting in molding the middle part structure of the impeller insert of the washing machine to form a complete mold cavity structure, beryllium copper is adopted to improve the cooling efficiency of the cavity, the cavity structure is optimized through end flow analysis, the cooling time of the mold is further reduced, the multi-runner cooling auxiliary molding assembly adopts the multi-runner cooling structure, the cooling speed is high, molten materials are injected into the cavity through the injection molding piece, and after the injection molding is completed, the molded plastic piece is ejected through the ejection part.
2. The side cooling flow passages are arranged in an arc shape, so that the cooling area is increased, the impeller small hole forming lug is used for assisting in forming the small holes of the impeller, secondary processing is not needed, the production period is shortened, and the production benefit is improved.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is an exploded schematic view of the present invention.
Fig. 2 is an exploded view in another aspect of the utility model.
Fig. 3 is a partial structural schematic diagram of the present invention.
Fig. 4 is a partial structural view in another aspect of the present invention.
In the figure: the molding device comprises a lower injection molding die 1, an upper injection molding die 2, an injection molding part 3, a wave wheel molding lower part 4, a wave wheel insert molding part 5, a multi-runner cooling auxiliary molding assembly 6, an ejection part 7, a wave wheel auxiliary molding lug 8, an auxiliary molding cavity 9, a multi-runner cooling part 10, a middle cooling runner 11, a side cooling runner 12, a wave wheel small hole molding lug 13, a wave wheel fan blade bulge block 14, an insert fixing hole 15, an insert middle molding block 16, an axis molding part 17, an axis molding barrel 18, an injection molding main board 19, an injection molding main hole 20, an ejector rod fixing plate 21 and a limiting connecting plate 22.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, a washing machine impeller inserts injection mold with quick cooling structure of die cavity, including mould plastics lower mould 1 and mould plastics upper mould 2, mould plastics upper mould 2 top be equipped with injection molding 3, mould plastics lower mould 1 on be equipped with impeller shaping lower part 4, mould plastics lower mould 1 and mould plastics and be equipped with impeller inserts formed part 5 between the upper mould 2, mould plastics and be equipped with multithread way cooling auxiliary forming subassembly 6 in the upper mould 2, impeller inserts formed part 5 be located between multithread way cooling auxiliary forming subassembly 6 and impeller shaping lower part 4, mould plastics lower mould 1 below be equipped with ejecting portion 7.
In the embodiment, in the injection molding process, an injection lower mold 1 and an injection upper mold 2 are close to each other, so that one end of a wave wheel insert molding piece 5 is in butt fit with a multi-runner cooling auxiliary molding assembly 6, the other end of the wave wheel insert molding piece is in butt fit with a wave wheel molding lower part 4, the wave wheel molding lower part 4 is used for assisting in molding a lower part structure of a washing machine wave wheel insert, the multi-runner cooling auxiliary molding assembly 6 is used for assisting in molding an upper part structure of the washing machine wave wheel insert, the wave wheel insert molding piece 5 is used for assisting in molding a middle structure of the washing machine wave wheel insert to form a complete mold cavity structure, a beryllium copper material is adopted to improve the cooling efficiency of the cavity, the cavity structure is optimized through end flow analysis, the cooling time of the mold is further reduced, the multi-runner cooling auxiliary molding assembly 6 adopts a multi-runner cooling structure, the cooling speed is high, and a molten material is injected into the cavity through an injection molding piece 3, and after the injection molding is finished, ejecting the molded plastic piece through the ejection part 7.
Combine fig. 2, fig. 3 to show, multithread way cooling auxiliary forming subassembly 6 including setting up a plurality of impeller auxiliary forming lugs 8 in mould 2 of moulding plastics, a plurality of impeller auxiliary forming lugs 8 be annular array along mould 2 central point of moulding plastics and distribute, be equipped with auxiliary forming cavity 9 between two adjacent impeller auxiliary forming lugs 8, impeller auxiliary forming lug 8 and auxiliary forming cavity 9 match with the shape of impeller shaping lower part 4 respectively and fit, impeller auxiliary forming lug 8 on be equipped with multithread way cooling piece 10.
Specifically, the auxiliary forming convex block 8 and the auxiliary forming concave cavity 9 are used for auxiliary forming of an upper structure of an impeller insert of the washing machine, after injection molding is completed, cooling water is introduced into the multi-runner cooling piece 10, the plastic piece is cooled and formed through the multi-runner cooling piece 10, a multi-runner cooling structure is adopted, a cavity structure is optimized, cooling time of a mold is further reduced, and cooling speed is high.
Referring to fig. 2 and 3, the auxiliary forming bumps 8 and the auxiliary forming cavities 9 of the pulsator are alternately arranged, the multi-channel cooling member 10 includes a middle cooling channel 11 and a side cooling channel 12 which are arranged on the auxiliary forming bumps 8 of the pulsator, and the middle cooling channel 11 and the side cooling channel 12 respectively correspond to the positions of the lower part 4 of the pulsator.
In this embodiment, after the injection molding is completed, cooling water is introduced into the middle cooling runner 11 and the side cooling runner 12, and the molded part is cooled and molded through the middle cooling runner 11 and the side cooling runner 12, and a multi-runner cooling structure is adopted to optimize a cavity structure, further reduce the cooling time of the mold, and increase the cooling rate.
Lateral part cooling channel 12 be the arc setting, supplementary shaping lug 8 of impeller on still be equipped with a plurality of impeller aperture shaping lugs 13, middle part cooling channel 11 and lateral part cooling channel 12 crisscross setting with impeller aperture shaping lug 13 respectively.
In this embodiment, the lateral cooling flow channel 12 is arc-shaped, which increases the cooling area, and the impeller aperture forming bump 13 is used to assist in forming the aperture of the impeller, without performing secondary processing, which shortens the production cycle and improves the production efficiency.
As shown in fig. 3 and 4, the lower impeller molding portion 4 includes a plurality of impeller blade protrusions 14 disposed on the lower injection molding die 1, the impeller blade protrusions 14 are distributed in an annular array along the central point of the lower injection molding die 1, and the impeller blade protrusions 14 correspond to the auxiliary molding cavity 9 in position and are matched in shape.
In this embodiment, the protruding block 14 of the impeller blade is matched with the auxiliary forming cavity 9 to assist in forming the lower structure of the impeller insert of the washing machine.
The lower injection molding die 1 is internally provided with an insert fixing hole 15, and the impeller insert forming part 5 is in clamping fit with the insert fixing hole 15.
In this embodiment, through the joint cooperation between inserts fixed orifices 15 and the impeller inserts formed part 5, can play the fixed action to impeller inserts formed part 5, fixed effect is better, avoids taking place not hard up.
The impeller insert forming piece 5 comprises an insert middle forming block 16 arranged in an insert fixing hole 15, the insert middle forming block 16 corresponds to the position of the impeller fan blade protrusion block 14, and an axis forming part 17 is arranged on the insert middle forming block 16.
In this embodiment, the insert middle forming block 16 is used to assist in forming the washing machine impeller insert middle structure, and the axis forming portion 17 is used to assist in forming the washing machine impeller axis part, so that the forming precision is high.
As shown in fig. 4, the axial molding portion 17 includes an axial molding tube 18 disposed on the insert middle molding block 16, and the axial molding tube 18 is in abutting engagement with the injection upper mold 2.
In this embodiment, the shaft forming cylinder 18 is used to assist in forming the shaft of the pulsator of the washing machine, and the forming precision is high.
Referring to fig. 1 and 2, the injection molded part 3 includes an injection molded main plate 19 disposed above the injection mold 2, and the injection molded main plate 19 is provided with an injection molded main hole 20 therein.
In this embodiment, during injection molding, the molten material is injected through the injection main hole 20 in the injection main plate 19 and then enters the cavity.
Referring to fig. 2, the ejection portion 7 includes an ejector fixing plate 21 disposed below the injection lower mold 1, and the ejector fixing plate 21 is provided with a limiting connection plate 22.
In this embodiment, the ejector fixing plate 21 is connected with a plurality of ejector rods, the ejector rods are not shown in the figure, and the limiting connecting plate 22 has a limiting effect on the ejector plate.
The working principle of the utility model is as follows:
in the injection molding process, an injection lower mold 1 and an injection upper mold 2 are close to each other, so that one end of an insert middle forming block 16 is in butt fit with the injection upper mold 2, the other end of the insert middle forming block is in butt fit with the injection lower mold 1, an impeller auxiliary forming lug 8 and an auxiliary forming cavity 9 are used for assisting in forming the upper structure of a washing machine impeller insert, an impeller blade bulge block 14 is matched with the auxiliary forming cavity 9 and is used for assisting in forming the lower structure of the washing machine impeller insert, the insert middle forming block 16 is used for assisting in forming the washing machine impeller insert middle structure, an axis forming cylinder 18 is used for assisting in forming the axis part of the washing machine impeller, the forming precision is high, a complete mold cavity structure is formed, beryllium copper material is adopted, the cooling efficiency of the cavity is improved, after the injection molding is completed, cooling water is introduced into a middle cooling runner 11 and a side cooling runner 12, and the plastic part is cooled and formed through the middle cooling runner 11 and the side cooling runner 12, adopts a multi-runner cooling structure, optimizes the cavity structure, further reduces the cooling time of the die, has high cooling rate,
when moulding plastics, the molten material pours into through the owner's hole 20 of moulding plastics in the mainboard 19 of moulding plastics, and then gets into the die cavity in, be connected with a plurality of ejector pins on the ejector pin fixed plate 21, the ejector pin is not shown in the figure, and limiting connection board 22 plays limiting displacement to the ejector plate, and it can to mould through the ejector pin after accomplishing moulding plastics and go on ejecting.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the utility model.
Although terms such as the lower injection mold 1, the upper injection mold 2, the injection molding part 3, the lower impeller molding part 4, the impeller insert molding part 5, the multi-flow passage cooling auxiliary molding assembly 6, the ejection part 7, the impeller auxiliary molding projection 8, the auxiliary molding cavity 9, the multi-flow passage cooling part 10, the middle cooling flow passage 11, the side cooling flow passage 12, the impeller small hole molding projection 13, the impeller blade projection 14, the insert fixing hole 15, the insert middle molding block 16, the axis molding part 17, the axis molding cylinder 18, the injection molding main plate 19, the injection molding main hole 20, the ejector rod fixing plate 21, the limit connecting plate 22, and the like are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.
Claims (10)
1. The utility model provides a washing machine impeller inserts injection mold with quick cooling structure of die cavity, mould (2) including moulding plastics lower mould (1) and moulding plastics, its characterized in that, mould plastics and be equipped with injection molding (3) above mould (2), mould plastics lower mould (1) on be equipped with impeller shaping lower part (4), mould plastics lower mould (1) and mould plastics and be equipped with impeller inserts formed part (5) between mould (2), mould plastics and be equipped with multithread way cooling auxiliary forming subassembly (6) in mould (2), impeller inserts formed part (5) be located between multithread way cooling auxiliary forming subassembly (6) and impeller shaping lower part (4), mould plastics lower mould (1) below be equipped with ejecting portion (7).
2. The washing machine impeller insert injection mold with the cavity rapid cooling structure as claimed in claim 1, wherein the multi-runner cooling auxiliary forming assembly (6) comprises a plurality of impeller auxiliary forming projections (8) arranged in the injection upper mold (2), the plurality of impeller auxiliary forming projections (8) are distributed in an annular array along the central point of the injection upper mold (2), an auxiliary forming concave cavity (9) is arranged between two adjacent impeller auxiliary forming projections (8), the impeller auxiliary forming projections (8) and the auxiliary forming concave cavity (9) are respectively matched with the shape of the impeller forming lower part (4), and the impeller auxiliary forming projections (8) are provided with a multi-runner cooling piece (10).
3. The washing machine impeller insert injection mold with the cavity rapid cooling structure as claimed in claim 2, wherein the impeller auxiliary forming protrusion (8) and the auxiliary forming cavity (9) are alternately arranged, the multi-channel cooling member (10) comprises a middle cooling channel (11) and a side cooling channel (12) arranged on the impeller auxiliary forming protrusion (8), and the middle cooling channel (11) and the side cooling channel (12) respectively correspond to the impeller forming lower portion (4).
4. The washing machine impeller insert injection mold with the cavity rapid cooling structure as claimed in claim 3, wherein the side cooling flow passages (12) are arc-shaped, the impeller auxiliary forming protrusion (8) is further provided with a plurality of impeller small hole forming protrusions (13), and the middle cooling flow passage (11) and the side cooling flow passages (12) are respectively staggered with the impeller small hole forming protrusions (13).
5. The washing machine impeller insert injection mold with the cavity rapid cooling structure as claimed in claim 4, wherein the impeller molding lower part (4) comprises a plurality of impeller blade protruding blocks (14) arranged on the lower injection molding die (1), the impeller blade protruding blocks (14) are distributed in an annular array along the central point of the lower injection molding die (1), and the impeller blade protruding blocks (14) correspond to the auxiliary molding cavity (9) in position and are matched in shape.
6. The washing machine impeller insert injection mold with the cavity rapid cooling structure as claimed in claim 5, wherein an insert fixing hole (15) is provided in the lower injection mold (1), and the impeller insert molding member (5) is in snap fit with the insert fixing hole (15).
7. The washing machine impeller insert injection mold with the cavity rapid cooling structure as claimed in claim 6, wherein the impeller insert molding member (5) comprises an insert middle molding block (16) disposed in the insert fixing hole (15), the insert middle molding block (16) corresponds to the impeller blade protrusion block (14), and the insert middle molding block (16) is provided with an axis molding portion (17).
8. The washing machine impeller insert injection mold with the cavity rapid cooling structure as claimed in claim 7, wherein the axial molding part (17) comprises an axial molding barrel (18) disposed on the insert middle molding block (16), the axial molding barrel (18) is in abutting fit with the injection upper mold (2).
9. The washing machine impeller insert injection mold with the cavity rapid cooling structure as claimed in claim 8, wherein the injection molding piece (3) comprises an injection main plate (19) disposed above the injection upper mold (2), and the injection main plate (19) is provided with an injection main hole (20) therein.
10. The washing machine impeller insert injection mold with the cavity rapid cooling structure as claimed in claim 9, wherein the ejection part (7) comprises a mandril fixing plate (21) disposed below the injection lower mold (1), and the mandril fixing plate (21) is provided with a limiting connecting plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122684082.4U CN216506432U (en) | 2021-11-01 | 2021-11-01 | Washing machine impeller insert injection mold with quick cooling structure of die cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122684082.4U CN216506432U (en) | 2021-11-01 | 2021-11-01 | Washing machine impeller insert injection mold with quick cooling structure of die cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216506432U true CN216506432U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122684082.4U Active CN216506432U (en) | 2021-11-01 | 2021-11-01 | Washing machine impeller insert injection mold with quick cooling structure of die cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216506432U (en) |
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2021
- 2021-11-01 CN CN202122684082.4U patent/CN216506432U/en active Active
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