A plastic injection mold for a plastic part of a washing machine

Abstract

The application relates to the technical field of injection molds, in particular to a washing machine plastic part injection mold facilitating demolding, which comprises an upper mold and a lower mold, the upper mold and the lower mold are symmetrically arranged, a groove is arranged on the bottom surface of the upper mold, a protrusion is arranged on the top surface of the lower mold, a cavity is formed between the protrusion and the inner wall of the groove when the upper mold and the lower mold are combined, the protrusion comprises a first sliding part and a second sliding part, the second sliding part is arranged on the side surface of the first sliding part and abuts against the first sliding part, a first sliding groove is arranged on the lower mold and used for sliding of the first sliding part in the vertical direction, a second sliding groove is arranged on the lower mold and used for sliding of the second sliding part in the horizontal direction, and a driving device capable of driving the first sliding part and the second sliding part to slide is arranged on the lower mold. The application has the effect of facilitating demolding of the washing machine plastic part.

Description

Technical Field

[0001] This application relates to the field of injection mold technology, and in particular to an injection mold for easy demolding of plastic parts for washing machines. Background Technology

[0002] Washing machines are an indispensable appliance in modern homes, helping us easily wash and spin-dry clothes, saving time and effort. The manufacturing process of the washing machine casing involves using injection molds to mold the outer shell.

[0003] An injection mold is a tool used for injection molding. It usually consists of two parts: an upper mold and a lower mold. When the upper and lower molds are closed, a cavity is formed between them. Then, injection molding is performed through the injection port on the upper mold, thereby forming the plastic part of the washing machine shell inside the cavity.

[0004] During demolding, the upper mold is first moved away from the lower mold. At this time, the plastic parts of the washing machine are exposed to the air and are tightly attached to the lower mold. It is not convenient to separate the plastic parts of the washing machine from the lower mold at this time. Summary of the Invention

[0005] The purpose of this application is to provide an injection mold for washing machine plastic parts that facilitates demolding.

[0006] The technical solution provided in this application for a convenient demolding injection mold for washing machine plastic parts is as follows:

[0007] A convenient demolding injection mold for plastic parts of a washing machine includes an upper mold and a lower mold. The upper mold and the lower mold are symmetrically arranged. The bottom surface of the upper mold has a groove, and the top surface of the lower mold has a protrusion. When the upper mold and the lower mold are closed, a cavity is formed between the protrusion and the inner wall of the groove.

[0008] The protrusion includes a first sliding portion and a second sliding portion, wherein the second sliding portion is disposed on the side of the first sliding portion and abuts against the first sliding portion;

[0009] The lower mold has a first groove for the first sliding part to slide vertically, and a second groove for the second sliding part to slide horizontally.

[0010] The lower mold is provided with a driving device that can drive the first sliding part and the second sliding part to slide.

[0011] By adopting the above technical solution, before demolding the plastic parts of the washing machine, the first sliding part is moved downward, thereby separating the first sliding part from the second sliding part. At this time, the second sliding part is slid horizontally, thereby separating the second sliding part from the plastic parts of the washing machine, thus facilitating the demolding of the plastic parts of the washing machine.

[0012] Optionally, the driving device includes a driving component and a first linkage assembly, wherein the driving component is disposed on the lower mold and can drive the first sliding part to slide in the vertical direction;

[0013] There are two second sliding parts, which are distributed on both sides of the first sliding part. During the sliding process of the first sliding part, the two second sliding parts can be driven to slide towards each other through the first linkage component.

[0014] By adopting the above technical solution and setting two second sliding parts, the two second sliding parts slide towards each other before demolding, thereby separating the two inner walls of the washing machine plastic parts from the second sliding parts, thus further facilitating the demolding of the washing machine plastic parts.

[0015] Optionally, each of the second sliding parts and the first sliding part is provided with a first linkage component;

[0016] The lower mold is provided with a first cavity, which is located below the second sliding part;

[0017] The first linkage component includes a first slider, a second slider, a first connecting rod, and a first driving block. The first slider is connected to the inner wall of the first cavity and can slide horizontally on the inner wall of the first cavity. The second slider is connected to the inner wall of the first cavity and can slide vertically on the inner wall of the first cavity.

[0018] The first connecting rod is hinged to the first slider and the second slider respectively, and the first slider is fixedly connected to the corresponding second sliding part;

[0019] The first drive block is fixedly connected to the side wall of the first sliding part.

[0020] By adopting the above technical solution, the first sliding part slides downward, thereby causing the first driving block to drive the second slider to slide downward. Then, the first connecting rod drives the first slider to slide horizontally, causing the first slider to drive the second sliding part to slide horizontally. Thus, the sliding of the first sliding part can realize the sliding of the second sliding part. This reduces the need for a separate driving component to drive the second sliding part, thereby reducing the use of driving components and saving costs.

[0021] Optionally, the protrusion further includes a third sliding portion, which is disposed above the second sliding portion and can slide in the vertical direction.

[0022] By adopting the above technical solution, the third sliding part slides upward first when demolding the part, thereby driving the washing machine plastic part to move upward, so that the washing machine plastic part separates from the outer surface of the lower mold, thereby further reducing the demolding difficulty of the washing machine plastic part.

[0023] Optionally, the lower mold is provided with a second linkage component, and the lower mold is provided with a second cavity, the second cavity being located on one side of the first sliding part;

[0024] The second linkage assembly includes a third slider, a fourth slider, a fifth slider, a second link, and a third link. The third slider and the fourth slider are both connected to the inner wall of the second cavity and can slide vertically on the inner wall of the second cavity.

[0025] The fifth slider is disposed between the third slider and the fourth slider, and the fifth slider is connected to the inner wall of the second cavity and can slide horizontally on the inner wall of the second cavity;

[0026] The second connecting rod is hinged to the third slider and the fifth slider respectively, and the third connecting rod is hinged to the fourth slider and the fifth slider respectively;

[0027] The third slider is fixedly connected to the third sliding part.

[0028] By adopting the above technical solution, the sliding of the first sliding part drives the second driving block to slide, thereby causing the second driving block to drive the fourth slider to slide. Then, through the second and third connecting rods, the third slider is driven to slide upward, thereby realizing the upward movement of the third sliding part. This reduces the need to use a separate driving component to drive the third sliding part upward, thus saving costs.

[0029] Optionally, there are two second linkage components, which are respectively connected to two symmetrical sidewalls of the third sliding part.

[0030] By adopting the above technical solution and setting two second linkage components, the two ends of the third sliding part are simultaneously subjected to force, thereby increasing the stability of the third sliding part during the sliding process.

[0031] Optionally, a second driving block capable of driving the fourth slider to slide is installed on the side wall of the first sliding part, and a telescopic groove is provided on the side wall of the first sliding part, and the second driving block can slide within the telescopic groove.

[0032] By adopting the above technical solution, and by setting a telescopic groove, the second driving block can be retracted into the telescopic groove, thereby allowing the first sliding part to continue to slide down, thereby driving the second slider to slide. In turn, the sliding of the first sliding part can drive the second sliding part and the third sliding part to slide, thereby reducing the need for a separate driving component and further saving costs.

[0033] Optionally, an elastic element is provided between the second drive block and the inner wall of the telescopic groove, with one end of the elastic element acting on the inner wall of the telescopic groove and the other end of the elastic element acting on the second drive block.

[0034] By adopting the above technical solution and setting up an elastic element, the second drive block can automatically extend under the action of the elastic element after it is retracted into the telescopic groove. This increases the automation level of the injection mold, reduces the need for a separate drive element to move the second drive block, and saves costs.

[0035] Optionally, the second drive block is provided with a guide slope at one end near the fourth slider.

[0036] By adopting the above technical solution and setting the guide slope, the second drive block can automatically slide into the telescopic groove under the drive of the guide slope, thereby increasing the automation level of the injection mold.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. Before demolding the plastic parts of the washing machine, the first sliding part is moved down to separate the first sliding part from the second sliding part. At this time, the second sliding part is slid horizontally to separate the second sliding part from the plastic parts of the washing machine, thereby facilitating the demolding of the plastic parts of the washing machine.

[0039] 2. By sliding the first sliding part downward, the first driving block drives the second slider to slide downward, which in turn drives the first slider to slide horizontally through the first connecting rod, which in turn drives the second sliding part to slide horizontally. Thus, the sliding of the first sliding part can realize the sliding of the second sliding part, reducing the need for a separate driving component to drive the second sliding part, thereby reducing the use of driving components and saving costs.

[0040] 3. Before demolding, the third sliding part slides upward, thereby moving the washing machine plastic part upward and separating it from the outer surface of the lower mold, thus further reducing the demolding difficulty of the washing machine plastic part. Attached Figure Description

[0041] Figure 1 This is a cross-sectional structural schematic diagram of an injection mold for a washing machine plastic part that is easy to demold, according to an embodiment of this application.

[0042] Figure 2 yes Figure 1 A magnified view of part A in the diagram.

[0043] Figure 3This is a cross-sectional structural schematic diagram of another perspective of an injection mold for a washing machine plastic part that is easy to demold, according to an embodiment of this application.

[0044] Figure 4 yes Figure 3 A magnified view of part B in the diagram.

[0045] In the diagram, 1 is the upper mold; 11 is the injection hole; and 12 is the groove.

[0046] 2. Lower mold; 21. Protrusion; 211. First sliding part; 2111. Expansion groove; 2112. Clearance groove; 212. Second sliding part; 2121. Relief groove; 213. Third sliding part; 22. First slide groove; 23. Second slide groove;

[0047] 3. Drive unit; 31. Drive component;

[0048] 32. First linkage assembly; 321. First slider; 322. Second slider; 323. First connecting rod; 324. First drive block;

[0049] 33. Second linkage assembly; 331. Third slider; 3311. Connecting part; 3312. Pushing part; 332. Fourth slider; 333. Fifth slider; 334. Second connecting rod; 335. Third connecting rod; 336. Second drive block; 3361. Guide slope;

[0050] 4. Cavity; 5. First cavity; 6. Second cavity; 7. Elastic element; 8. Permanent magnet. Detailed Implementation

[0051] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0052] A convenient demolding injection mold for plastic parts in washing machines, as shown in the reference. Figure 1 and Figure 2 The mold includes an upper mold 1 and a lower mold 2, which are arranged correspondingly to each other. The upper mold 1 has an injection hole 11 on its top surface for injection molding, and a groove 12 on its bottom surface, which is connected to the injection hole 11. The lower mold 2 has a protrusion 21 on its top surface, which is positioned corresponding to the groove 12. When the upper mold 1 and the lower mold 2 are closed, the protrusion 21 is inserted into the groove 12 and there is a gap between it and the inner wall of the groove 12, thus forming a cavity 4. The inner wall of the cavity 4 is composed of the inner wall of the groove 12, the outer wall of the protrusion 21, and part of the top surface of the lower mold 2.

[0053] When manufacturing plastic parts for a washing machine, the lower mold 2 is first joined with the upper mold 1 to form a cavity 4. Then, molten plastic is injected through the injection hole 11 to solidify in the cavity 4. The mold is then opened, and the upper mold 1 is moved away from the lower mold 2, exposing the molded plastic parts to the air. At this point, the parts can be removed.

[0054] The protrusion 21 includes a first sliding part 211, a second sliding part 212 and a third sliding part 213. The third sliding part 213 is disposed on the top surface of the first sliding part 211, and the second sliding part 212 is disposed on the side wall of the first sliding part 211. In this embodiment, there are two second sliding parts 212. The two second sliding parts 212 are symmetrically arranged about the first sliding part 211 and both are in contact with the first sliding part 211.

[0055] The lower mold 2 has a first sliding groove 22 on its top surface, and the first sliding part 211 can slide vertically within the first sliding groove 22. The lower mold 2 has a second sliding groove 23, and two second sliding parts 212 are both disposed within the second sliding groove 23 and can slide towards each other. The second sliding groove 23 is connected to the first sliding groove 22.

[0056] In the initial state, part of the first sliding part 211 is located in the first sliding groove 22 and the other part is located in the second sliding groove 23. Part of the second sliding part 212 is located in the second sliding groove 23 and the other part extends out of the second sliding groove 23. Both second sliding parts 212 abut against the first sliding part 211. The third sliding part 213 abuts against the top surface of the first sliding part 211. Part of the third sliding part 213 is located in the second sliding groove 23 and the other part extends out of the second sliding groove 23. The top surface of the third sliding part 213 is flush with the top surface of the second sliding part 212.

[0057] After the upper mold 1 and the lower mold 2 are closed, the top surfaces of the second sliding part 212 and the third sliding part 213, the side wall of the second sliding part 212 extending out of the second sliding groove 23, the side wall of the third sliding part 213 extending out of the second sliding groove 23, the inner wall of the groove 12, and part of the top surface of the lower mold 2 together form the inner wall of the cavity 4.

[0058] After injection molding, the mold is opened, moving the upper mold 1 away from the lower mold 2. At this time, the first sliding part 211 moves down and the third sliding part 213 moves up, making the bottom surface of the third sliding part 213 higher than the top surface of the second sliding part 212, and the first sliding part 211 slides out of the second sliding groove 23, thereby separating the bottom surface of the washing machine plastic part from the top surface of the lower mold 2. Then, the two second sliding parts 212 slide towards each other, separating the side wall of the second sliding part 212 from the side wall of the washing machine plastic part. The washing machine plastic part can then be picked up, thus reducing the difficulty of demolding the washing machine plastic part and making demolding easier.

[0059] A driving device 3 is provided on the lower mold 2, which can drive the first sliding part 211 and the second sliding part 212 to slide. The driving device 3 includes a driving component 31 and a first linkage component 32. The driving component 31 is fixedly connected to the lower mold 2, and the output end of the driving component 31 is inserted into the first sliding groove 22 and fixedly connected to the first sliding part 211. In this embodiment, the driving component 31 is an electric push rod.

[0060] Each second sliding part 212 is provided with a first linkage component 32 between it and the first sliding part 211. The lower mold 2 has a first cavity 5, which is located below the second sliding part 212 and is connected to the first slide groove 22 and the second slide groove 23 respectively.

[0061] The first linkage assembly 32 includes a first slider 321, a second slider 322, a first connecting rod 323 and a first driving block 324. The second sliding part 212 has a clearance groove 2121 on its side wall near the first sliding part 211. The first driving block 324 is fixedly connected to the side wall of the first sliding part 211 and inserted into the clearance groove 2121 and can slide in the clearance groove 2121.

[0062] The first slider 321 is connected to the inner wall of the first cavity 5 and can slide horizontally on the inner wall of the first cavity 5. The second slider 322 is connected to the inner wall of the first cavity 5 and can slide vertically on the inner wall of the first cavity 5. The first connecting rod 323 is hinged to the first slider 321 and the second slider 322 respectively. The first slider 321 is fixedly connected to the second sliding part 212. The second slider 322 corresponds to the position of the first driving block 324. In this embodiment, the first driving block 324 is made of a permanent magnet 8, and the second slider 322 is made of a magnetic material. In this embodiment, iron is used.

[0063] The driving component 31 drives the first sliding part 211 to move downward. When the first sliding part 211 slides out of the second sliding groove 23, the first driving block 324 abuts against the second slider 322. At this time, the first sliding part 211 continues to move downward, driving the second slider 322 to slide vertically downward. The second slider 322 drives the first slider 321 to slide horizontally through the first connecting rod 323, thereby causing the first slider 321 to drive the second sliding part 212 to slide horizontally.

[0064] During the reset process of the first sliding part 211, the first driving block 324 moves upward, thereby driving the magnetically attracted second slider 322 to move upward. When the second sliding part 212 is reset, the first slider 321 abuts against the inner wall of the first cavity 5. At this time, the first driving block 324 continues to move upward, causing the first driving block 324 to separate from the second slider 322.

[0065] Reference Figure 3 and Figure 4The driving device 3 also includes a second linkage component 33, which is disposed on the lower mold 2. During the downward sliding of the first sliding part 211, the third sliding part 213 can be driven to slide upward through the second linkage component 33.

[0066] The lower mold 2 has a second cavity 6. The second cavity 6 is located on one side of the first sliding part 211 and is connected to the second sliding groove 23. The plane where the opening of the second cavity 6 is located is adjacent to the plane where the opening of the first cavity 5 is located.

[0067] The second linkage assembly 33 includes a third slider 331, a fourth slider 332, a fifth slider 333, a second connecting rod 334, and a third connecting rod 335. The third slider 331 and the fourth slider 332 are both connected to the inner wall of the second cavity 6 and can slide in the vertical direction. The fifth slider 333 is connected to the inner wall of the second cavity 6 and can slide in the horizontal direction. The fifth slider 333 is disposed between the third slider 331 and the fourth slider 332.

[0068] The third slider 331 is positioned above the fourth slider 332. The two ends of the second connecting rod 334 are hinged to the third slider 331 and the fifth slider 333, respectively. The two ends of the third connecting rod 335 are hinged to the fifth slider 333 and the fourth slider 332, respectively. When the second driving block 336 slides downwards, the fourth slider 332 drives the fifth slider 333 to slide horizontally via the third connecting rod 335, causing the fifth slider 333 to drive the third slider 331 to slide upwards via the second connecting rod 334.

[0069] The third slider 331 includes a connecting part 3311 and a pushing part 3312. The lower end of the pushing part 3312 is fixedly connected to one side of the connecting part 3311, making the third slider 331 L-shaped. The first sliding part 211 is provided with a relief groove 2112 on the side near the third slider 331. The pushing part 3312 can be disposed in the relief groove 2112 and is fixedly connected to the bottom surface of the third sliding part 213. When the connecting part 3311 slides to abut against the top wall inside the second cavity 6, the pushing part 3312 can push the third sliding part 213 out of the second slide groove 23.

[0070] A telescopic groove 2111 is formed on the side wall of the first sliding part 211 near the third slider 331. A second driving block 336 is slidably connected in the telescopic groove 2111, and the second driving block 336 corresponds to the position of the fourth slider 332. An elastic element 7 is provided between the second driving block 336 and the inner wall of the telescopic groove 2111. One end of the elastic element 7 acts on the inner wall of the telescopic groove 2111, and the other end of the elastic element 7 acts on the second driving block 336.

[0071] In this embodiment, the elastic element 7 is a spring, and the elastic element 7 is fixedly connected to the second drive block 336 and the inner wall of the telescopic groove 2111 respectively. In other embodiments, the elastic element 7 can also be other items that can undergo elastic deformation.

[0072] The second drive block 336 has a guide slope 3361 at one end near the fourth slider 332. There are two guide slopes 3361, which are respectively located on the upper and lower end faces of the second drive block 336. In this embodiment, the fourth slider 332 is also provided with the aforementioned guide slope 3361.

[0073] A permanent magnet 8 is provided between the fifth slider 333 and the side wall of the first sliding part 211. The permanent magnet 8 is fixedly connected to the inner wall of the second cavity 6. The fifth slider 333 is made of magnetic material. In this embodiment, the fifth slider 333 is made of iron material.

[0074] During the downward movement of the first sliding part 211, the second driving block 336 is driven to move downward, causing the guide slope 3361 on the second driving block 336 to abut against the guide slope 3361 on the fourth slider 332. At this time, the fourth slider 332 slides downward under the drive of the second driving block 336, thereby causing the fifth slider 333 to slide horizontally towards the first sliding part 211, and causing the connecting part 3311 to slide upward, thereby causing the pushing part 3312 to push the third sliding part 213 upward.

[0075] When the fourth slider 332 slides to abut against the bottom wall of the second cavity 6, the fifth slider 333 slides to abut against the permanent magnet 8, and the connecting part 3311 slides to abut against the top wall of the second cavity 6. At this time, the bottom surface of the third sliding part 213 is higher than the top surface of the second sliding part 212. At this time, the first driving block 324 abuts against the second slider 322.

[0076] The first sliding part 211 continues to move downward, causing the second driving block 336 to move into the telescopic groove 2111 under the guidance of the guide slope 3361, so that the second driving block 336 completely enters the telescopic groove 2111 and continues to move downward under the drive of the first sliding part 211.

[0077] After demolding is completed, the first sliding part 211 moves upward, causing the fourth slider 332 to move upward under the push of the second driving block 336, thereby separating the fifth slider 333 from the permanent magnet 8. When the fifth slider 333 abuts against the inner wall of the second cavity 6, the third sliding part 213 resets. At this time, the first sliding part 211 continues to move upward, causing the second driving block 336 to move into the telescopic groove 2111 under the guidance of the guide slope 3361. When the first sliding part 211 abuts against the third sliding part 213, the second driving block 336 is located between the third slider 331 and the fourth slider 332.

[0078] The implementation principle of this application embodiment is as follows: during demolding, the first sliding part 211 slides down, causing the second driving block 336 to drive the fourth slider 332 to slide down, thereby causing the pushing part 3312 to push the third sliding part 213 to move up. When the bottom surface of the third sliding part 213 is higher than the top surface of the second sliding part 212, the fourth slider 332 abuts against the bottom wall of the second cavity 6, and the first driving block 324 abuts against the second slider 322.

[0079] Continue to slide the first sliding part 211 downwards, so that the first driving block 324 pushes the second slider 322 to slide, thereby causing the two second sliding parts 212 to slide towards each other. When the second sliding part 212 separates from the washing machine plastic part, stop moving the first sliding part 211. At this time, the washing machine plastic part is only in contact with the top surface of the third sliding part 213, which facilitates the demolding of the washing machine plastic part.

[0080] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A convenient demolding injection mold for plastic parts of a washing machine, comprising an upper mold (1) and a lower mold (2), wherein the upper mold (1) and the lower mold (2) are symmetrically arranged, characterized in that, The upper mold (1) has a groove (12) on its bottom surface and the lower mold (2) has a protrusion (21) on its top surface. When the upper mold (1) and the lower mold (2) are closed, a cavity (4) is formed between the protrusion (21) and the inner wall of the groove (12). The protrusion (21) includes a first sliding part (211) and a second sliding part (212), the second sliding part (212) is disposed on the side of the first sliding part (211) and abuts against the first sliding part (211); The lower mold (2) is provided with a first groove (22) for the first sliding part (211) to slide in the vertical direction, and the lower mold (2) is provided with a second groove (23) for the second sliding part (212) to slide in the horizontal direction. The lower mold (2) is provided with a driving device (3) that can drive the first sliding part (211) and the second sliding part (212) to slide. The driving device (3) includes a driving component (31) and a first linkage component (32). The driving component (31) is disposed on the lower mold (2) and can drive the first sliding part (211) to slide in the vertical direction. There are two second sliding parts (212), which are distributed on both sides of the first sliding part (211). During the sliding process of the first sliding part (211), the two second sliding parts (212) can be driven to slide towards each other through the first linkage component (32). Each of the second sliding parts (212) and the first sliding part (211) is provided with a first linkage component (32); The lower mold (2) is provided with a first cavity (5), which is located below the second sliding part (212); The first linkage component (32) includes a first slider (321), a second slider (322), a first connecting rod (323), and a first driving block (324). The first slider (321) is connected to the inner wall of the first cavity (5) and can slide horizontally on the inner wall of the first cavity (5). The second slider (322) is connected to the inner wall of the first cavity (5) and can slide vertically on the inner wall of the first cavity (5). The first connecting rod (323) is hinged to the first slider (321) and the second slider (322) respectively, and the first slider (321) is fixedly connected to the corresponding second sliding part (212); The first driving block (324) is fixedly connected to the side wall of the first sliding part (211); during the reset of the first sliding part (211), the first driving block (324) moves upward, thereby driving the magnetically attracted second slider (322) to move upward. When the second sliding part (212) is reset, the first slider (321) abuts against the inner wall of the first cavity (5). At this time, the first driving block (324) continues to move upward, causing the first driving block (324) to separate from the second slider (322). The protrusion (21) further includes a third sliding part (213), which is disposed above the second sliding part (212) and can slide in the vertical direction; The lower mold (2) is provided with a second linkage component (33), and the lower mold (2) is provided with a second cavity (6), which is located on one side of the first sliding part (211); The second linkage assembly (33) includes a third slider (331), a fourth slider (332), a fifth slider (333), a second link (334), and a third link (335). The third slider (331) and the fourth slider (332) are both connected to the inner wall of the second cavity (6) and can slide vertically on the inner wall of the second cavity (6). The fifth slider (333) is disposed between the third slider (331) and the fourth slider (332), and the fifth slider (333) is connected to the inner wall of the second cavity (6) and can slide horizontally on the inner wall of the second cavity (6); The second connecting rod (334) is hinged to the third slider (331) and the fifth slider (333) respectively, and the third connecting rod (335) is hinged to the fourth slider (332) and the fifth slider (333) respectively; The third slider (331) is fixedly connected to the third sliding part (213); The first sliding part (211) has a second driving block (336) installed on its side wall, which can drive the fourth slider (332) to slide up and down. The first sliding part (211) has a telescopic groove (2111) on its side wall, and the second driving block (336) can slide in the telescopic groove (2111). An elastic element (7) is provided between the second drive block (336) and the inner wall of the telescopic groove (2111). One end of the elastic element (7) acts on the inner wall of the telescopic groove (2111), and the other end of the elastic element (7) acts on the second drive block (336).

2. The injection mold for a washing machine plastic part that facilitates demolding according to claim 1, characterized in that, There are two second linkage components (33), and the two second linkage components (33) are respectively connected to the two symmetrical side walls of the third sliding part (213).

3. The injection mold for a washing machine plastic part that facilitates demolding according to claim 1, characterized in that, The second drive block (336) has a guide slope (3361) at one end near the fourth slider (332).

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