CN220051972U - Mold for washing machine diaphragm and washing machine diaphragm - Google Patents
Mold for washing machine diaphragm and washing machine diaphragm Download PDFInfo
- Publication number
- CN220051972U CN220051972U CN202320813351.9U CN202320813351U CN220051972U CN 220051972 U CN220051972 U CN 220051972U CN 202320813351 U CN202320813351 U CN 202320813351U CN 220051972 U CN220051972 U CN 220051972U
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- diaphragm
- cavity
- molding
- washing machine
- mold
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- 238000005406 washing Methods 0.000 title claims abstract description 47
- 238000000465 moulding Methods 0.000 claims abstract description 71
- 238000001746 injection moulding Methods 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000007493 shaping process Methods 0.000 claims abstract 2
- 239000000084 colloidal system Substances 0.000 claims description 13
- 239000004413 injection moulding compound Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000004080 punching Methods 0.000 abstract description 11
- 230000002950 deficient Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a mold for a diaphragm of a washing machine and the diaphragm of the washing machine, wherein the mold for the diaphragm of the washing machine comprises: an upper die and a lower die; a molding cavity is formed between the upper die and the lower die; the molding cavity comprises: the injection passage, the first storage cavity, the plastic cavity, the second storage cavity and the third storage cavity; a conical surface shaping part is formed at the inner opening end of the large hole of the diaphragm; the circumference of the third storage cavity is communicated with the conical surface molding part; the conical surface molding part is also provided with a convex through groove which allows the conical chamfer of the diaphragm to be provided with a pressing convex part at the circumferential communication position of the conical surface molding part and the third storage cavity; the convex through groove is a communication groove for communicating the plastic cavity and the third storage cavity. The mold injection molding of the washing machine diaphragm allows larger punching rim charge to exist, reduces the probability of defective products, and simultaneously reduces the cost of flash treatment.
Description
Technical Field
The present utility model relates to a mold for a diaphragm of a washing machine and a diaphragm of a washing machine manufactured by the mold.
Background
A diaphragm used inside a washing machine valve body, i.e., the washing machine diaphragm referred to herein, has die cut trim (i.e., flash) at the outer diameter, the large bore diameter, and the small bore diameter of the washing machine diaphragm. The diaphragm is installed with the washing machine shell through a peripheral edge structure, assembled with the diaphragm installation position through a large hole and controlled in flow through a small hole. In the existing diaphragm processing technology, the size structures of the large holes and the small holes are fixed, but the residual amplitude of the punching rim charge at the large holes can be greatly different due to the different processing precision of the die and the different processing technology. When the residual flash amplitude exceeds the specification value, the normal control of the diaphragm on the flow can be influenced, so that the flow of the washing machine component exceeds the specification value, and the product quality of the washing machine is influenced.
Disclosure of Invention
The utility model provides a mold for a diaphragm of a washing machine and the diaphragm of the washing machine, which solve the technical problems, and specifically adopts the following technical scheme:
a mold for a diaphragm of a washing machine, comprising: an upper die and a lower die; a molding cavity for injecting injection molding colloid to form a diaphragm of the washing machine is formed between the upper die and the lower die; the molding cavity comprises: an injection passage for injecting the injection molding compound, a first annular storage chamber for storing the injection molding compound and forming an outer diameter cut rim charge therein after injection molding is completed, a molding chamber for molding the diaphragm, a second storage chamber for storing the injection molding compound and forming an inner diameter cut rim charge of a small hole of the diaphragm therein after injection molding is completed, and a third storage chamber for storing the injection molding compound and forming an inner diameter cut rim charge of a large hole of the diaphragm therein after injection molding is completed; the injection passage is communicated to the first storage cavity; the plastic cavity is communicated with the first storage cavity in the circumferential direction through a communication groove; the second storage cavity is communicated with the molding cavity body in the circumferential direction through a communication groove; the third storage cavity is communicated with the molding cavity body in the circumferential direction through a communication groove; a conical surface molding part for enabling the inner opening end of the large hole of the diaphragm to be formed with a conical chamfer for facilitating the installation of the diaphragm is formed at the inner opening of the hole of the large hole of the molded cavity; the circumference of the third storage cavity is communicated with the conical surface molding part; the conical surface molding part is also provided with a convex through groove which allows the conical chamfer of the diaphragm to be provided with a pressing convex part for improving the tightness of the big hole of the diaphragm at the position of circumferential communication of the conical surface molding part and the third storage cavity; the convex through groove is a communication groove for communicating the plastic cavity and the third storage cavity.
Further, the lower die is formed with an adjusting cavity; an adjusting column for adjusting the size of a communication groove which is communicated with the second storage cavity and the molding cavity is slidably arranged in the adjusting cavity; the upper end of the adjusting column and the upper die jointly form a second storage cavity and a communication groove for communicating the second storage cavity with the molding cavity; the adjusting column slides in the adjusting cavity along the vertical direction.
Further, the adjusting column is formed with an exhaust pipeline for exhausting the gas of the molding cavity; the upper end of the exhaust pipeline moves between the communicated plastic cavity and the closed plastic cavity according to the up-and-down sliding of the adjusting column; the lower end of the exhaust pipeline is communicated to the outside of the lower die.
Further, the lower end of the exhaust pipeline is connected with a vacuum pump.
Further, a pressure sensor for detecting whether the first storage cavity is filled with injection molding colloid or not and further sealing the molding cavity through the injection molding colloid is arranged in the first storage cavity; the pressure sensor is communicatively coupled to the vacuum pump.
Further, the taper of the tapered molding portion was 45 degrees.
Further, the molding cavity comprises a plurality of injection passages; the plurality of injection passages are equally spaced along the circumference of the first storage chamber.
Further, the injection passage is an annular passage surrounding the circumference of the first reservoir.
A washing machine diaphragm made of the above-mentioned mold for a washing machine diaphragm, comprising: a diaphragm body; the diaphragm body is formed with a large hole and a small hole; the inner side opening end of the big hole is provided with a conical chamfer for facilitating the installation of the diaphragm; the tapered chamfer is formed with a pressing protrusion for improving the sealability of the large hole of the diaphragm.
The utility model has the advantages that the provided die for the diaphragm of the washing machine adjusts the position of the punching rim charge of the diaphragm macropores, and the conical chamfer is arranged at the connecting position of the punching rim charge of the diaphragm macropores, which is equivalent to the variable phase, the specification upper limit of the macropores is increased, the specification range of the macropores is increased, which is equivalent to the opening angle range distance of the conical chamfer of 1/2, so that the larger punching rim charge can be allowed to exist, the probability of defective products is reduced, and the cost for processing the flash is also reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of a mold for a washing machine diaphragm and a mold for a washing machine diaphragm according to the present utility model;
FIG. 2 is a partial enlarged view of the mold for the diaphragm of the washing machine of FIG. 1 and the mold for the diaphragm of the washing machine;
FIG. 3 is a schematic view of a mold for a washing machine diaphragm and a washing machine diaphragm according to the present utility model;
FIG. 4 is an enlarged view of a portion of the mold for a washing machine diaphragm of FIG. 3 and a washing machine diaphragm;
the upper die 11, the lower die 12, the adjusting chamber 121, the adjusting column 122, the exhaust pipe 123, the vacuum pump (not shown), the pressure sensor 13, the molding chamber 14, the injection passage 141, the first reservoir chamber 142, the molding chamber 143, the hole site 1431, the tapered molding portion 1432, the convex through groove 1433, the second reservoir chamber 144, the third reservoir chamber 145, the communicating groove 146, the diaphragm 10, the small hole 101, the large hole 102, the tapered chamfer 103, and the pressing projection 104.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
As shown in fig. 1 to 4, a mold for a diaphragm 10 of a washing machine according to the present utility model includes: an upper die 11 and a lower die 12, a molding cavity 14 is formed between the upper die 11 and the lower die 12 for injecting molding compound to form the washing machine diaphragm 10. The mold cavity 14 includes: injection passage 141, first storage chamber 142, molding chamber 143, second storage chamber 144, and third storage chamber 145. The injection passage 141 is used for injecting injection molding colloid, the first storage cavity 142 is annular and is used for storing injection molding colloid and forming external diameter punching rim charge at the position after injection molding is completed, the molding cavity 143 is used for molding the diaphragm 10, the first storage cavity 142 surrounds the periphery of the molding cavity 143, the second storage cavity 144 is used for storing injection molding colloid and forming internal diameter punching rim charge of the small hole 101 of the diaphragm 10 at the position after injection molding is completed, and the third storage cavity 145 is used for storing injection molding colloid and forming internal diameter punching rim charge of the large hole 102 of the diaphragm 10 at the position after injection molding is completed. In design, the injection passage 141 is connected to the first storage chamber 142, the molding chamber 143 is connected to the first storage chamber 142 in its circumferential direction through the communication groove 146, the second storage chamber 144 is connected to the molding chamber 143 in its circumferential direction through the communication groove 146, and the third storage chamber 145 is connected to the molding chamber 143 in its circumferential direction through the communication groove 146.
Further, the molding cavity 143 has a hole site 1431 forming the large hole 102 of the diaphragm 10, a tapered molding part 1432 is formed at an inner opening of the hole site 1431, the tapered molding part 1432 is used for forming a tapered chamfer 103 at an inner opening end of the large hole 102 of the diaphragm 10, the tapered chamfer 103 can allow larger blanking margin to exist, and the blanking margin processing rate of the large hole 102 is improved while the diaphragm 10 is convenient to install. The third storage cavity 145 is circumferentially connected to the tapered molding portion 1432 so that the cut rim charge is located at the inner opening position of the large hole 102 and connected to the tapered chamfer 103, and thus, the assembly is not affected even if the rim charge is not cut cleanly. The conical surface molding portion 1432 is further formed with a convex through groove 1433 at a position communicating with the circumferential direction of the third storage chamber 145, the convex through groove 1433 allowing the conical chamfer 103 of the diaphragm 10 to be formed with a pressing protrusion 104 at the time of injection molding, the pressing protrusion 104 being used to improve the mounting tightness of the large hole 102 of the diaphragm 10. The male through groove 1433 is a communication groove 146 that communicates the molding cavity 143 and the third storage cavity 145.
The washing machine diaphragm 10 injection-molded using the above mold for the washing machine diaphragm 10 includes: the diaphragm 10 body. The body of the diaphragm 10 is formed with a large aperture 102 and a small aperture 101. The inner open end of the large aperture 102 is formed with a tapered chamfer 103 to facilitate the installation of the diaphragm 10. The tapered chamfer 103 is formed with a pressing protrusion 104 for improving the sealability of the large hole 102 of the diaphragm 10.
The die for the diaphragm 10 of the washing machine adjusts the position of the punching rim charge of the big hole 102 of the diaphragm 10, and by arranging the conical chamfer 103 at the connecting position of the punching rim charge of the big hole 102 of the diaphragm 10, the specification upper limit of the big hole 102 is increased correspondingly to phase change, the specification range of the increased big hole 102 is equal to the opening angle range distance of the conical chamfer 103 of 1/2, thus larger punching rim charge can be allowed to exist, the probability of defective products is reduced, and the cost for processing the flash is also reduced.
As a specific embodiment, the lower die 12 is formed with an adjusting cavity 121, an adjusting column 122 is slidably provided in the adjusting cavity 121, and the adjusting column 122 is used for adjusting the size of a communicating groove 146 communicating the second storage cavity 144 and the molding cavity 143. The upper end of the adjusting column 122 and the upper die 11 together form a second storage chamber 144 and a communication groove 146 communicating the second storage chamber 144 and the molding chamber 143, and the adjusting column 122 slides in the vertical direction in the adjusting chamber 121 to adjust the size of the communication groove 146 by adjusting the distance with the upper die 11.
Specifically, the adjusting column 122 is formed with an exhaust pipe 123 for exhausting the gas of the molding cavity 14, the upper end of the exhaust pipe 123 moves between the communicating molding cavity 14 and the closed molding cavity 14 according to the up-down sliding of the adjusting column 122, and the lower end of the exhaust pipe 123 is communicated to the outside of the lower die 12. The lower end of the exhaust pipeline 123 is connected with a vacuum air extractor, a pressure sensor 13 is arranged in the first storage cavity, and whether the first storage cavity is filled with injection molding colloid can be detected through the pressure sensor 13, so that whether the injection molding colloid seals the molding cavity 14 is judged, and the pressure sensor 13 is connected to the vacuum air extractor in a communication manner. At the beginning, the upper end of the exhaust pipeline 123 is communicated with the molding cavity 14 when the adjusting column 122 slides upwards, so that when the pressure sensor 13 detects that the first storage cavity is filled with injection molding colloid, the vacuum air extractor is controlled to suck air in the molding cavity 14, and after the air suction is finished, the adjusting column 122 is controlled to move downwards so as to seal the molding cavity 14. Typically, the suction is completed before the molding compound reaches the second reservoir 144. By the above operation, the gas in the cavity can be discharged during injection molding, thereby ensuring the quality of the diaphragm 10.
As a specific embodiment, the taper of the taper molding portion 1432 is 45 degrees.
As a specific embodiment, the molding cavity 14 includes a plurality of injection passages 141, and the injection passages 141 are equally spaced along the circumferential direction of the first storage cavity 142, so that the injection efficiency is improved.
As an alternative embodiment, the injection passage 141 is an annular passage surrounding the circumference of the first storage chamber, and injection molding efficiency is higher.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the utility model in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the utility model.
Claims (9)
1. A mold for a diaphragm of a washing machine, comprising: an upper die and a lower die; a molding cavity for injecting injection molding colloid to form a diaphragm of the washing machine is formed between the upper die and the lower die; it is characterized in that the method comprises the steps of,
the molding cavity comprises: an injection passage for injecting the injection molding compound, a first annular storage chamber for storing the injection molding compound and forming an outer diameter cut rim charge therein after injection molding is completed, a molding chamber for molding the diaphragm, a second storage chamber for storing the injection molding compound and forming an inner diameter cut rim charge of a small hole of the diaphragm therein after injection molding is completed, and a third storage chamber for storing the injection molding compound and forming an inner diameter cut rim charge of a large hole of the diaphragm therein after injection molding is completed;
the injection passage is communicated to the first storage cavity;
the molding cavity is communicated with the first storage cavity in the circumferential direction through a communication groove;
the second storage cavity is communicated to the molding cavity body in the circumferential direction through a communication groove;
the third storage cavity is communicated with the molding cavity body in the circumferential direction through a communication groove;
the conical surface molding part is formed at the inner opening of the hole site of the molding cavity, which is used for forming the big hole of the diaphragm, and the conical surface molding part is formed at the inner opening end of the big hole of the diaphragm, so that the diaphragm is convenient to install;
the circumference of the third storage cavity is communicated with the conical surface molding part;
a convex through groove which allows the conical chamfer of the diaphragm to be formed at the position of circumferential communication between the conical surface molding part and the third storage cavity and is used for improving the tightness of the large hole of the diaphragm is formed at the conical chamfer of the diaphragm;
the convex through groove is the communication groove which is used for communicating the molding cavity and the third storage cavity.
2. A mold for a diaphragm of a washing machine as claimed in claim 1, wherein,
the lower die is provided with an adjusting cavity;
an adjusting column for adjusting the size of the communication groove which is used for communicating the second storage cavity with the molding cavity is arranged in the adjusting cavity in a sliding mode;
the upper end of the adjusting column and the upper die jointly form the second storage cavity and the communication groove which is communicated with the second storage cavity and the molding cavity;
the adjusting column slides in the adjusting cavity along the vertical direction.
3. A mold for a diaphragm of a washing machine as claimed in claim 2, wherein,
the adjusting column is provided with an exhaust pipeline for exhausting the gas of the molding cavity;
the upper end of the exhaust pipeline moves between communicating the molding cavity and sealing the molding cavity according to the up-and-down sliding of the adjusting column;
the lower end of the exhaust pipeline is communicated to the outside of the lower die.
4. A mold for a diaphragm of a washing machine as claimed in claim 3,
the lower end of the exhaust pipeline is connected with a vacuum air extractor.
5. A mold for a diaphragm of a washing machine as claimed in claim 4, wherein,
the first storage cavity is internally provided with a pressure sensor for detecting whether the first storage cavity is filled with injection molding colloid or not so as to seal the molding cavity through the injection molding colloid;
the pressure sensor is communicatively coupled to the vacuum pump.
6. A mold for a diaphragm of a washing machine as claimed in claim 1, wherein,
the taper of the conical surface shaping part is 45 degrees.
7. A mold for a diaphragm of a washing machine as claimed in claim 1, wherein,
the molding cavity comprises a plurality of injection passages;
the injection passages are equally spaced along the circumference of the first storage chamber.
8. A mold for a diaphragm of a washing machine as claimed in claim 1, wherein,
the injection passage is an annular passage surrounding the circumference of the first reservoir.
9. A washing machine diaphragm made from a mould for a washing machine diaphragm according to any one of the preceding claims 1 to 8, comprising: a diaphragm body;
the diaphragm body is formed with a large hole and a small hole;
the inner side opening end of the large hole is provided with a conical chamfer for facilitating the installation of the diaphragm;
the tapered chamfer is formed with a pressing protrusion for improving sealability of the large hole of the diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320813351.9U CN220051972U (en) | 2023-04-13 | 2023-04-13 | Mold for washing machine diaphragm and washing machine diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320813351.9U CN220051972U (en) | 2023-04-13 | 2023-04-13 | Mold for washing machine diaphragm and washing machine diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220051972U true CN220051972U (en) | 2023-11-21 |
Family
ID=88761291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320813351.9U Active CN220051972U (en) | 2023-04-13 | 2023-04-13 | Mold for washing machine diaphragm and washing machine diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220051972U (en) |
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2023
- 2023-04-13 CN CN202320813351.9U patent/CN220051972U/en active Active
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