Clothes processing device and molding method of injection molded parts

Abstract

The present disclosure relates to the technical field of clothing processing devices, and in particular to a clothing processing device and a molding method of an injection molded part. The clothing processing device comprises an inner drum, the inner drum is provided with a drainage hole, the drainage hole is provided with a drainage valve, the drainage valve comprises a slidingly matched movable part and a fixed part, the movable part is used to open and close the drainage hole, the movable part comprises a counterweight block and an injection molded part, the injection molded part comprises a first injection molded part and a second injection molded part; the first injection molded part comprises a first injection molded part body wrapped outside the counterweight block, and the first injection molded part body is provided with a first avoidance portion. The clothing processing device, through the injection molded part formed by two-step injection molding, can complete the first avoidance portion formed in the first injection molding in the second injection molding, so that the first injection molded part and the second injection molded part can cooperate to form an integral injection molded part that can completely wrap the counterweight block, so as to achieve the purpose of completely isolating the counterweight block from the external environment.

Description

Technical Field

[0001] The present disclosure relates to the technical field of clothing processing devices, and in particular to a clothing processing device and a molding method of an injection molded part. Background Art

[0002] In injection molded parts, it is often necessary to inject a counterweight into the plastic part to prevent the counterweight from contacting the external environment. The conventional method of injecting a counterweight into a plastic part is to make a core on the mold, place the counterweight on the core, and then start the injection molding machine. However, this method can only half-wrap the counterweight into the injection molded part, but cannot fully wrap the counterweight into the injection molded part, which cannot prevent the counterweight from contacting the external environment. Summary of the invention

[0003] In order to solve the above technical problems, the present disclosure provides a clothing processing device and a molding method of an injection molded part.

[0004] In a first aspect, the present disclosure provides a clothes processing device, comprising an inner drum, wherein a drainage hole is provided on the inner drum, a drainage valve is provided at the drainage hole, and the drainage valve comprises a movable part and a fixed part that are slidably matched, and the movable part is used to open and close the drainage hole.

[0005] The movable part includes a counterweight block and an injection molded part, and the injection molded part includes a first injection molded part and a second injection molded part; the first injection molded part includes a first injection molded part body covering the counterweight block, and a first avoidance portion is provided on the first injection molded part body, and the first avoidance portion is used to expose part of the counterweight block to form a first gripping station;

[0006] The second injection-molded part includes a second injection-molded part body, which is covered on the outside of the counterweight block and is located at a position corresponding to at least part of the first avoidance portion. A second avoidance portion is provided on the second injection-molded part body, and the second avoidance portion is used to expose part of the first injection-molded part to form a second gripping station.

[0007] Optionally, the number of the first avoidance portions is three, and the three first avoidance portions are evenly arranged circumferentially on the circumferential side of the counterweight block.

[0008] Optionally, the counterweight block is a columnar structure, and the first injection molded part also includes a positioning structure and a connecting structure. The positioning structure, the first injection molded part body and the counterweight block are coaxially arranged, and the connecting structure is formed between two adjacent first avoidance portions. The positioning structure is connected to the first injection molded part body through the connecting structure.

[0009] Optionally, the first injection molded part body is provided with two groups of the first avoidance parts correspondingly on both sides along its axial direction, and the number of the first avoidance parts in each group is three. The number of the positioning structures is two, and the two positioning structures are correspondingly arranged at the two ends of the counterweight block, and the two positioning structures are connected to the first injection molded part body through the connecting structure.

[0010] Optionally, the second injection molded part further includes a positioning groove, which is arranged opposite to the positioning structure and matches the shape of the positioning structure.

[0011] In a second aspect, the present disclosure provides a method for molding an injection molded part as described above, comprising the following steps:

[0012] S1, using a fixing device to fix the counterweight block in the mold by connecting multiple first gripping positions on the counterweight block;

[0013] S2, injecting a first injection-molded part, wherein the first injection-molded part and the first gripping station are opposite to each other to form a first avoidance portion, and a first injection-molded part body is formed on the peripheral side of the counterweight block;

[0014] S3, using a fixing device to fix the first injection molded part and the counterweight block wrapped by the first injection molded part in the mold by connecting multiple second gripping stations on the first injection molded part body;

[0015] S4, injecting a second injection-molded part, wherein the second injection-molded part is formed at a position of the first avoidance portion and connected with the first injection-molded part to form an integrated structure.

[0016] Optionally, the fixing device is a three-jaw clamp, and in S1 and S3, the three jaws of the fixing device are clamped at three of the first gripping stations and three of the second gripping stations respectively along the circumferential direction.

[0017] Optionally, in S2, the first injection molded part forms the connecting structure at the gap between the three claws of the fixing device.

[0018] Optionally, there is a set distance between the first gripping station and the second gripping station.

[0019] Optionally, a hook groove is provided on the fixing device, and the hook groove is used to form a hook-shaped structure on the first injection molded part body.

[0020] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0021] The clothing processing device provided by the present invention can make the part (that is, the first avoidance part) that needs to be connected to the fixing device using the first gripping station during the first injection molding complete the filling in the second injection molding work through the injection molding parts of the two-step injection molding, so that the first injection molding part and the second injection molding part can cooperate to form an integral injection molding part that can completely wrap the counterweight block, so as to achieve the purpose of completely isolating the counterweight block from the external environment, thereby better protecting the counterweight block, extending the service life of the counterweight block, and reducing the probability of the counterweight block being rusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 It is a structural schematic diagram of a drain valve in a clothes processing device according to an embodiment of the present disclosure;

[0025] Figure 2 for Figure 1 A cross-sectional view of

[0026] Figure 3 It is a schematic diagram of the structure of the injection molded part and the counterweight block according to the embodiment of the present disclosure;

[0027] Figure 4 It is a structural schematic diagram of a first injection molded part in the clothing processing device according to an embodiment of the present disclosure;

[0028] Figure 5 It is a structural schematic diagram of a sealing ring and a pressing plate in the clothes processing device according to an embodiment of the present disclosure;

[0029] Figure 6 It is a structural schematic diagram of a sealing ring in a clothes processing device according to an embodiment of the present disclosure;

[0030] Figure 7 for Figure 6 A schematic diagram of the structure from another angle;

[0031] Figure 8 It is a structural schematic diagram of a fixing member in a clothes processing device according to an embodiment of the present disclosure;

[0032] Fig. 9 The present invention is a flowchart of a method for molding an injection molded part according to an embodiment of the present invention.

[0033] Among them, 1. movable part; 11. first injection molded part; 111. first avoidance part; 12. second injection molded part; 121. second avoidance part; 13. positioning structure; 14. connecting structure; 15. accommodating groove; 16. first limiter; 2. fixing part; 21. abutment part; 22. second limiter; 3. elastic part; 4. pressure plate; 41. second pressure relief port; 5. sealing ring; 51. sealing ring body; 52. sealing plate; 521. first pressure relief port; 53. slot; 54. limiter; 6. counterweight; 7. third limiter. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0036] In injection molded parts, it is often necessary to inject a counterweight into the plastic part to prevent the counterweight from contacting the external environment. The conventional method of injecting a counterweight into a plastic part is to make a core on the mold, place the counterweight on the core, and then start the injection molding machine. However, this method can only half-wrap the counterweight into the injection molded part, but cannot fully wrap the counterweight into the injection molded part, which cannot prevent the counterweight from contacting the external environment.

[0037] Based on this, the present embodiment provides a clothing processing device and a molding method for injection molded parts. Through two-step injection molding of the injection molded parts, the part that needs to be connected to the fixing device using the first gripping station during the first injection molding (that is, the first avoidance part) can be filled in the second injection molding, so that the first injection molded part and the second injection molded part can cooperate to form an integral injection molded part that can completely wrap the counterweight block, so as to achieve the purpose of completely isolating the counterweight block from the external environment, thereby better protecting the counterweight block, extending the service life of the counterweight block, and reducing the probability of the counterweight block being rusted. The following is a detailed description of this through specific embodiments:

[0038] Reference Figures 1 to 9The embodiment shown provides a clothing processing device, including an inner drum, a drainage hole is provided on the inner drum, a drainage valve is provided at the drainage hole, the drainage valve includes a sliding movable part 1 and a fixed part 2, the movable part 1 is used to open and close the drainage hole, the movable part 1 includes a counterweight block 6 and an injection molded part, the injection molded part includes a first injection molded part 11 and a second injection molded part 12; the first injection molded part 11 includes a first injection molded part body coated on the outside of the counterweight block 6, a first avoidance portion 111 is provided on the first injection molded part body, the first avoidance portion 111 is used to expose part of the counterweight block 6 to form a first gripping station; the second injection molded part 12 includes a second injection molded part body, the second injection molded part body is coated on the outside of the counterweight block 6 and is located at a position corresponding to at least part of the first avoidance portion 111, a second avoidance portion 121 is provided on the second injection molded part body, the second avoidance portion 121 is used to expose part of the first injection molded part 11 to form a second gripping station.

[0039] By forming the injection molded parts in two steps, the part (that is, the first avoidance portion 111) that needs to be connected to the fixing device using the first gripping station during the first injection molding can be filled in during the second injection molding, so that the first injection molded part 11 and the second injection molded part 12 can cooperate to form an integral injection molded part that can completely wrap the counterweight block 6, thereby achieving the purpose of completely isolating the counterweight block 6 from the external environment, thereby better protecting the counterweight block 6, extending the service life of the counterweight block 6, and reducing the probability of the counterweight block 6 being rusted.

[0040] In some embodiments, the number of the first avoidance portions 111 is three, and the three first avoidance portions 111 are evenly arranged circumferentially around the counterweight block 6; such a configuration can better fix the counterweight block 6 and ensure its position during the injection molding process.

[0041] In a further embodiment, the counterweight block 6 is a cylindrical structure, and the first injection molded part 11 also includes a positioning structure 13 and a connecting structure 14. The positioning structure 13, the first injection molded part body and the counterweight block 6 are coaxially arranged, and a connecting structure 14 is formed between two adjacent first avoidance portions 111. That is, the first injection molded part 11 forms a connecting structure 14 at the gap between the three claws of the fixing device, and the positioning structure 13 is connected to the first injection molded part body through the connecting structure 14.

[0042] It should be understood that two groups of first avoidance portions 111 are correspondingly provided on both sides of the first injection molded part body along its axial direction, and the number of first avoidance portions 111 in each group is three. The number of positioning structures 13 is two, and the two positioning structures 13 are correspondingly arranged at the two ends of the counterweight block 6. The two positioning structures 13 are connected to the first injection molded part body through a connecting structure 14.

[0043] When the counterweight 6 is a cylindrical structure, the positioning structure 13, the first injection molded part 11 and the counterweight 6 are coaxially arranged. In some embodiments, the second injection molded part 12 also includes a positioning groove, which is arranged opposite to the positioning structure 13 and matches the shape of the positioning structure 13. Such an arrangement enables the positioning structure 13 and the positioning grooves on the second injection molded part 12 that match the positioning structure 13 to be located on the axis of the counterweight 6, thereby ensuring that the strength of the connection between the first injection molded part 11 and the second injection molded part 12 is relatively uniform, and the overall structure formed after the connection is more stable and firm.

[0044] Reference Figure 3 , Figure 4 and Fig. 9 As shown, a molding method of an injection molded part provided in this embodiment includes the following steps:

[0045] S1, using a fixing device to fix the counterweight block 6 in the mold by connecting multiple first gripping positions on the counterweight block 6;

[0046] S2, injecting a first injection-molded part 11, where the first injection-molded part 11 and the first gripping station are opposite to each other to form a first avoidance portion 111;

[0047] S3, using a fixing device to fix the first injection molded part 11 and the counterweight 6 wrapped therein in the mold by connecting multiple second gripping stations on the first injection molded part 11;

[0048] S4, injecting a second injection molded part 12, where the second injection molded part 12 is formed at the position of the first avoidance portion 111, and connected with the first injection molded part 11 to form an integrated structure.

[0049] Among them, through the two-step injection molding in S2 and S4, the part blocked by the fixing device for the first time (that is, the first avoidance portion 111) can be filled in the second injection molding work to form an integrated injection molded part that can completely wrap the counterweight block 6, so as to achieve the purpose of completely isolating the counterweight block 6 from the external environment, thereby better protecting the counterweight block 6, extending the service life of the counterweight block 6, and reducing the probability of rusting of the counterweight block 6; it should be noted that S3 and S4 can be repeated many times, and through more than two injection molding operations, a plurality of injection molded parts can be formed to complete the complete sealing of the counterweight block 6. Wrapping, as long as each injection molding can fill a part of the exposed part of the counterweight block 6 remaining from the previous injection molding, that is, when the second injection molding part 12 does not completely fill the first avoidance part 111 (that is, there is a gap between the first injection molding part 11 and the second avoidance part 121 and / or there is a gap between the second injection molding part 12 and the first avoidance part 111), the next injection molding can also be used to fill the unfilled gap until the exposed part of the counterweight block 6 is completely filled; the specific situation requires a preliminary calculation based on the shape and volume of the counterweight block 6.

[0050] In some embodiments, the fixing device is a three-jaw clamp. In S1 and S3, the three jaws of the fixing device are clamped at three first gripping stations and three second gripping stations respectively along the circumferential direction; when the three jaws of the fixing device can be a structure that moves synchronously in the radial direction, or can be a structure that can be adjusted individually in the radial direction, it can be selected according to the shape of the counterweight 6. When the counterweight 6 is a cylindrical structure, a fixing device with three jaws that moves synchronously in the radial direction can be selected to fix the counterweight 6. At this time, the three-jaw structure and the counterweight 6 are in a coaxial position, the operation is simpler, the efficiency of fixing and disassembly is higher, and the fixing effect is also very good.

[0051] In some embodiments, in S2, the first injection-molded part 11 includes a positioning structure 13, a connecting structure 14 and a first injection-molded part body. The first injection-molded part body is circumferentially wrapped around the outside of the counterweight block 6. The first injection-molded part 11 forms a positioning structure 13 at its end along its axial direction. The first injection-molded part 11 forms a connecting structure 14 at the gap between the three claws of the fixing device. The positioning structure 13 is connected to the first injection-molded part body through the connecting structure 14. The positioning structure 13 can provide more fixed points during the injection molding process of the second injection-molded part 12, and can also facilitate the accurate positioning of the second injection-molded part 12 and the first injection-molded part 11.

[0052] In a further embodiment, two groups of first avoidance portions 111 are correspondingly provided on both sides of the first injection molded part body along its axial direction, and the number of first avoidance portions 111 in each group is three. The number of positioning structures 13 is two, and the two positioning structures 13 are correspondingly arranged at both ends of the counterweight block 6. The two positioning structures 13 are connected to the first injection molded part body through a connecting structure 14; in this way, the coaxial positioning of the first injection molded part 11 and the second injection molded part 12 can be more accurate, and the injection molding effect can be better, and at the same time, more stable support can be provided when injecting the second injection molded part 12.

[0053] In some embodiments, there is a set distance between the first gripping station and the second gripping station; it should be understood that when injecting the second injection molded part 12, high-temperature liquid plastic will occur at the position where the second injection molded part 12 contacts the first injection molded part 11, causing part of the first injection molded part 11 to be melted (the second injection molded part 12 and the first injection molded part 11 are combined into an integral structure in this way). When a set distance is left between the first gripping station and the second gripping station, it can ensure that the first gripping station is at a certain distance from the melted part, which not only ensures the reliability of clamping and fixing the first injection molded part 11, but also prevents the first injection molded part 11 from being deformed by clamping and forming unnecessary injection molding structure. That is to say, the connection between the second injection molded part 12 and the first injection molded part 11 will not have too much influence on the molding of the second injection molded part 12 and the first injection molded part 11.

[0054] In a further embodiment, a hook groove is provided on the fixing device, and the hook groove is used to form a hook-shaped structure on the first injection molded part 11; it should be understood that the hook groove can be a curve, a serrated shape or other shapes, as long as a hook-shaped structure can be formed when the first injection molded part 11 is injected, and the hook-shaped structure can form a matching structure on the second injection molded part 12. In this way, the first injection molded part 11 and the second injection molded part 12 can be connected not completely by fusion, and the hook-shaped structure can be used to strengthen the connection strength between the two.

[0055] Continue to refer to Figures 1 to 8 As shown, the drain valve also includes an elastic member 3 and a limiting member; the fixed member 2 is connected to the inner tube; the movable member 1 is slidably connected to the fixed member 2; a receiving groove 15 is provided on the movable member 1, and the receiving groove 15 is extended along the sliding direction of the movable member 1, and the elastic member 3 is arranged in the receiving groove 15; the first end and the second end of the elastic member 3 are correspondingly abutted against the movable member 1 and the fixed member 2, and the elastic member 3 is used to make the movable member 1 close the drain hole; the limiting member is arranged on the movable member 1 and / or the fixed member 2, and the limiting member is limitedly matched with the first end and / or the second end of the elastic member 3 to limit the elastic member 3 from escaping from the receiving groove 15; it should be understood that the telescopic direction of the elastic member 3 can be the same as the sliding direction of the movable member 1, and can also be at a certain angle to the sliding direction of the movable member 1, as long as the elasticity of the elastic member 3 can be used to reset the movable member 1.

[0056] Among them, when assembling the clothing processing device, one end of the elastic member 3 is first connected to the limiting member on the movable member 1 and / or the fixed member 2, and then the elastic member 3 is compressed along the direction of the accommodating groove 15 and inserted into the accommodating groove 15, and at the same time, the movable member 1 is completely installed inside the fixed member 2, so that the outer wall of the movable member 1 fits with the inner wall of the fixed member 2 to ensure the sliding fit between the movable member 1 and the fixed member 2. The movable member 1 can also be installed on the fixed member 2 first, and then the elastic member 3 is compressed and inserted into the accommodating groove 15; through the setting of the limiting member, the limiting function of the end of the elastic member 3 can be realized, and the elastic member 3 can be stably restricted in the accommodating groove 15, so that it will not bounce out from the opening of the accommodating groove 15 when the clothing processing device is working. The limiting member can ensure the reliability and stability of the clothing processing device.

[0057] Continue to refer to Figure 2 As shown, the limiting member includes a first limiting member 16 , which is disposed on the movable member 1 and arranged on the outer side of the first end of the elastic member 3 along the circumferential direction.

[0058] Continue to refer to Figure 2As shown, an abutment portion 21 extends from the fixing member 2 into the accommodating groove 15, and the abutment portion 21 abuts against the second end of the elastic member 3; the elastic member 3 is a cylindrical spring, and the limiting member includes a second limiting member 22 arranged on the abutment portion 21, and the second limiting member 22 is a cylindrical structure, and the second limiting member 22 is plugged into and matched with the second end of the elastic member 3; it should be understood that the second limiting member 22 and the first limiting member 16 are both used to provide reliable support for the end of the elastic member 3, and can realize the structure of limiting the elastic member 3, and the first limiting member 16 and the second limiting member 22 are both matched with the end shape of the elastic member 3, so as to ensure that the elastic member 3 can more stably complete the shortening and elongation actions in the accommodating groove 15, and is not easy to deviate after multiple elastic deformations.

[0059] In some embodiments, one of the first limiting member 16 and the second limiting member 22 is an annular structure sleeved on the circumferential side of the end of the elastic member 3, and the other is a cylindrical structure inserted into the inner side of the end of the elastic member 3. Such a configuration can ensure that both ends of the elastic member 3 of the cylindrical spring structure can be well fixed and stabilized, further prevent the elastic member 3 from being offset and the spring from being caught in the receiving groove 15, significantly reducing the failure rate of the clothing processing device, and at the same time, at least one end of the elastic member 3 can be exposed in the receiving groove 15, which can make it easier to install and remove the elastic member 3. It should be understood that when loading and unloading the elastic member 3, it is only necessary to compress the elastic member 3 first, and then make the two ends of the elastic member 3 detach from the second limiting member 22 and the first limiting member 16 in turn, or detach from the first limiting member 16 and the second limiting member 22 in turn. By setting one of the first limiting member 16 and the second limiting member 22 as an annular structure and the other as a cylindrical structure, the end of the elastic member 3 connected to the cylindrical structure can be placed on the outside, which is convenient for compressing its end.

[0060] In a further embodiment, the inner diameter of the elastic member 3 matches the diameter of the second limit member 22; such a setting can utilize the second limit member 22 to better fix the end of the elastic member 3 of the cylindrical spring structure; it should be noted that the second limit member 22 can be a cylindrical structure or a prismatic structure, as long as the end of the elastic member 3 can be fixed; it should be understood that the end of the second limit member 22 can be chamfered, which can make it easier for the elastic member 3 to be mounted on the second limit member 22.

[0061] Continue to refer to Figure 8As shown, the limiting member also includes a third limiting member 7, and the third limiting member 7 is arranged on the movable member 1 and / or the fixed member 2, and the third limiting member 7 abuts against the outer side of the middle part of the elastic member 3; the third limiting member 7 can be two groups, and the two groups of third limiting members 7 can be arranged on the movable member 1 and the fixed member 2 at the same time, and the two groups of third limiting members 7 on the movable member 1 and the fixed member 2 are arranged relatively to each other along the radial direction of the elastic member 3, and support the radial direction of the elastic member 3 at the same time. It should be noted that the two groups of third limiting members 7 can be arranged at the opening of the accommodating groove 15, so as to not only support the radial direction of the elastic member 3 to prevent its deformation, but also prevent it from escaping from the accommodating groove 15.

[0062] Continue to refer to Figure 2 As shown, a seal is provided at the second end of the accommodating groove 15, and a second limiting member 22 is located in the accommodating groove 15; such an arrangement can utilize the second limiting member 22 to stabilize the end of the elastic member 3 while also serving as a limit for the movable member 1. When the movable member 1 slides to a state where the seal of the accommodating groove 15 abuts against the second limiting member 22, the movable member 1 cannot continue to slide, thereby preventing the movable member 1 from slipping off the fixed member 2, further improving the reliability and safety of the clothing processing device, and significantly reducing the failure rate of the clothing processing device.

[0063] In some embodiments, the elastic member 3 is compressed and arranged in the receiving groove 15. When the drainage hole is completely closed, the second limit member 22 is located at the end of the receiving groove 15 on the side where the first seal is provided. It should be understood that the elastic member 3 can be a compression spring. When the elastic member 3 is a compression spring, when installing the elastic member 3 in the receiving groove 15, it is only necessary to compress the elastic member 3 for a certain stroke, then place it in the receiving groove 15, and release the elastic member 3 to restore it to its original shape. The two ends can be respectively abutted against the first limit member 16 and the second limit member 22. The installation is very convenient, which makes the assembly efficiency of the clothing processing device higher.

[0064] In some embodiments, the first limit member 16 is integrally formed with the movable member 1; that is, the first limit member 16 and the movable member 1 are integrally formed by casting or other processing methods. Such a configuration can make the connection between the first limit member 16 and the movable member 1 tighter and more secure, further reducing the risk of the elastic member 3 flying out of the receiving groove 15, and the first limit member 16 can be configured as an annular structure, a plate structure, a block structure, etc. to close the opening of the receiving groove 15, as long as it can limit the elastic member 3.

[0065] In a further embodiment, a slide groove is provided on the fixed part 2, and the movable part 1 and the slide groove are both concentrically arranged arc structures, and the movable part 1 is slidably arranged in the slide groove; a counterweight block 6 is provided at the first end of the movable part 1, and the slide groove is arched toward the center of the inner tube. When the second end of the movable part 1 closes the drainage hole, the center of gravity of the counterweight block 6 and the second end of the movable part 1 are respectively located on both sides of the innermost end of the slide groove; it should be understood that the arc center of the movable part 1 and the axis of the inner tube are perpendicular to form a first connecting line. When the second end of the movable part 1 closes the drainage hole, the center of gravity of the counterweight block 6 and the second end of the movable part 1 are respectively located on both sides of the first connecting line; that is, when the drainage hole is completely closed, the inner tube can provide centrifugal force for the counterweight block 6 through the rotation of the inner tube, and the centrifugal force can drive the counterweight block 6 to slide toward the end of the slide groove close to the first end of the movable part 1, thereby driving the sealing ring 5 to leave the drainage hole, thereby realizing the action of opening the drainage hole.

[0066] In some embodiments, a second seal is provided at the innermost end of the slide groove. When the drainage hole is fully opened, the first end of the movable part 1 is located at the end of the slide groove on the side where the second seal is provided. By setting the second seal, the movable part 1 can be limited when opening to prevent it from being too far away from the drainage hole and affecting its opening and closing response speed.

[0067] Continue to refer to Figures 1 to 7 As shown, the drain valve also includes a sealing ring 5 and a pressure plate 4. The circumferential side of the sealing ring 5 forms a sealable fit with the drain hole, that is, when the sealing ring 5 is at the drain hole, it can seal the drain hole to close it. When the sealing ring 5 is separated from the drain hole, the drain hole opens. The sealing ring 5 is provided with a first pressure relief port 521. The pressure plate 4 elastically abuts against the sealing ring 5 and closes the first pressure relief port 521, wherein the pressure plate 4 is connected to the movable part 1.

[0068] Among them, the sealing ring 5 is arranged at the drainage hole and is used to seal the drainage hole, so as to ensure the sealing state of the inner drum of the clothing processing device. When the pressure in the inner drum of the clothing processing device reaches a set value, the elastic abutment part of the pressure plate 4 and the sealing ring 5 begins to deform, resulting in a gap. At this time, part of the liquid flows through the gap and flows out from the first pressure relief port 521, thereby realizing the pressure relief action. In this way, the good sealing performance of the clothing processing device can be ensured, and the stability of the internal environment of the inner drum of the clothing processing device can be ensured. When high pressure occurs, the pressure can be relieved in time, which significantly improves the practicality and safety of the clothing processing device.

[0069] In some embodiments, the sealing ring 5 includes an annular sealing ring body 51 and a sealing plate 52 arranged at the center hole of the sealing ring body 51, a first pressure relief port 521 is opened on the sealing plate 52, the pressure plate 4 abuts against the side of the sealing plate 52 facing the washing chamber, the sealing plate 52 is elastic, a second pressure relief port 41 is opened on the pressure plate 4, and the second pressure relief port 41 is staggered with the first pressure relief port 521 (the projection of the second pressure relief port 41 on the sealing plate 52 is staggered with the first pressure relief port 521).

[0070] The sealing plate 52 can provide a reliable sealing condition for the drain hole. At the same time, by using the setting of the first pressure relief port 521 opened on the elastic sealing plate 52 and the setting mode of the pressure plate 4 being attached to the side of the sealing plate 52 facing the washing chamber, when the liquid pressure does not reach the set value, the pressure plate 4 can be used to press the pressure plate 4 with the liquid in the washing chamber, so that the pressure plate 4 blocks the first pressure relief port 521. It should be noted that the main body of the pressure plate 4 is arranged opposite to the first pressure relief port 521, and the second pressure relief port 41 opened on the pressure plate 4 is offset from the first pressure relief port 521. The liquid in the inner drum of the clothing treatment device will first flow from the second pressure relief port 41 into the gap between the sealing plate 52 and the pressure plate 4, and then flow out from the first pressure relief port 521. The gap between the sealing plate 52 and the pressure plate 4 can be fully utilized to achieve sealing and pressure relief actions. In this way, the good sealing performance of the clothing treatment device can be ensured, and the stability of the internal environment of the inner drum can be ensured. When high pressure occurs, the pressure can be relieved in time, thereby further improving the practicality and safety of the clothing treatment device.

[0071] In some embodiments, the first pressure relief port 521 is in a closed state in a natural state; it should be understood that the first pressure relief port 521 can be formed by cutting on the sealing ring 5, which uses the liquid pressure in the inner drum of the clothing processing device to push the sealing ring 5 to deform at the first pressure relief port 521, thereby opening the first pressure relief port 521 to achieve a pressure relief action. When the liquid pressure in the inner drum of the clothing processing device does not reach the set value, the first pressure relief port 521 returns to a closed structure under the elastic action of the sealing ring 5 itself. Such a setting can effectively prevent pollutants in the external environment from entering the first pressure relief port 521 and affecting the opening and closing action of the first pressure relief port 521.

[0072] Continue to refer to Figures 5 to 7 As shown, the first pressure relief port 521 is a linear structure; setting the first pressure relief port 521 as a linear structure is not only convenient for processing, but also can realize the opening and closing action more quickly, the structural integrity is stronger, and it is also easier to achieve complete closure, and the sealing effect is better in the natural state; the first pressure relief port 521 can also be a circular hole structure, a square hole structure, a polygonal hole structure, and a scattered hole structure formed by a combination of multiple linear structures rotating along the circumferential direction.

[0073] In some embodiments, the number of the second pressure relief ports 41 may be multiple. In a further embodiment, the number of the second pressure relief ports 41 is two, and the two second pressure relief ports 41 are symmetrical about the center of the first pressure relief port 521. Such an arrangement can ensure that the first pressure relief port 521 of the linear structure is subjected to the same force during the pressure relief action, thereby improving the service life of the sealing plate 52, and can also ensure that the speed of the liquid flowing from the two second pressure relief ports 41 to the first pressure relief port 521 is the same, thereby further improving the stability during pressure relief; in a further embodiment, the line connecting the two second pressure relief ports 41 is arranged perpendicular to the extension direction of the first pressure relief port 521; the two second pressure relief ports 41 and the first pressure relief port 521 of the linear structure are arranged in this way, which not only can make the first pressure relief port 521 and the second pressure relief port 41 misaligned, but also can facilitate precise positioning when installing the pressure plate 4, thereby significantly improving the assembly efficiency of the clothing processing device.

[0074] In a further embodiment, the pressure plate 4 is made of a hard material. It should be understood that the material used for the pressure plate 4 will not be significantly deformed by the pressure in the inner drum of the clothing processing device; the pressure plate 4 is arranged on the side of the sealing ring 5 facing the washing chamber, so that when the pressure in the inner drum of the clothing processing device reaches a set value, the liquid pushes the sealing ring 5 from the second pressure relief port 41 to make the sealing ring 5 bulge outward, and form a gap between the pressure plate 4 and the pressure plate 4 for liquid to flow, thereby ensuring the working reliability of the clothing processing device during the pressure relief action, and preventing the pressure plate 4 and the sealing ring 5 from being pressed by the liquid, preventing the flow gap from being formed, and preventing the first pressure relief port 521 from opening.

[0075] In some embodiments, there are multiple first pressure relief ports 521, and / or there are multiple second pressure relief ports 41; by arranging the first pressure relief ports 521 and the second pressure relief ports 41 in multiple forms, the cross-sectional area of ​​the sealing plate 52 and the pressure plate 4 can be more fully utilized, and the same volume of liquid can be discharged so that the deformation of each first pressure relief port 521 can be smaller and the response can be faster. At the same time, such an arrangement can also reduce the probability of damage to the clothing processing device due to excessive local force, further improving the reliability of the clothing processing device and extending the service life of the clothing processing device.

[0076] Continue to refer to Figure 7As shown, the sealing ring 5 is provided with a groove 53, the shape of the groove 53 matches the shape of the pressure plate 4, and the pressure plate 4 is embedded in the groove 53; it should be understood that the groove 53 is an annular groove, when the pressure plate 4 is a circular plate, the edge of the groove 53 can be circular, and when the pressure plate 4 is a polygonal plate, the edge of the groove 53 can be polygonal, which can ensure that the pressure plate 4 is stably fixed on the sealing ring 5, and when the pressure plate 4 and the groove 53 are both polygonal or other irregular shapes, relative rotation between the pressure plate 4 and the sealing ring 5 can be prevented; it should be noted that the groove 53 is provided with end faces for limiting the pressure plate 4 at both ends along its axial direction, and the installation of the pressure plate 4 needs to be completed through the deformation of the sealing ring 5 itself.

[0077] In some embodiments, the limiting portion 54 is elastically abutted against the pressure plate 4; through the setting of the limiting portion 54, the elastic force can be provided for the pressure plate 4 to be close to the sealing plate 52, thereby ensuring the sealing of the drain valve when the pressure relief condition is not met.

[0078] Continue to refer to Figure 5 As shown, the second pressure relief port 41 is arranged at the edge of the pressure plate 4; the second pressure relief port 41 arranged in this way is more convenient to process and can also be more convenient when loading and unloading the pressure plate 4. The pressure plate 4 can be more easily installed in or removed from the slot 53 by utilizing its opening and the elasticity of the sealing ring 5.

[0079] The specific implementation method and implementation principle are the same as those in the above embodiment, and can bring the same or similar technical effects, which will not be described one by one here. For details, please refer to the description of the above-mentioned injection molding method embodiment.

[0080] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0081] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clothes processing device, characterized in that: The invention comprises an inner cylinder, wherein the inner cylinder is provided with a drainage hole, wherein the drainage hole is provided with a drainage valve, wherein the drainage valve comprises a movable part (1) and a fixed part (2) which are slidably matched, wherein the movable part (1) is used to open and close the drainage hole, The movable part (1) comprises a counterweight (6) and an injection molded part, wherein the injection molded part comprises a first injection molded part (11) and a second injection molded part (12); the first injection molded part (11) comprises a first injection molded part body covering the counterweight (6), a first avoidance portion (111) being provided on the first injection molded part body, and the first avoidance portion (111) is used to expose a portion of the counterweight (6) to form a first gripping station; The second injection molded part (12) comprises a second injection molded part body, the second injection molded part body is coated on the outside of the counterweight block (6) and is located at a position corresponding to at least a portion of the first avoidance portion (111), and a second avoidance portion (121) is provided on the second injection molded part body, and the second avoidance portion (121) is used to expose a portion of the first injection molded part (11) to form a second gripping station.

2. The clothes treating device according to claim 1, characterized in that: The number of the first avoidance portions (111) is three, and the three first avoidance portions (111) are evenly arranged in the circumferential direction on the circumferential side of the counterweight block (6).

3. The clothes treating device according to claim 2, characterized in that: The counterweight (6) is a columnar structure, and the first injection molded part (11) further comprises a positioning structure (13) and a connecting structure (14); the positioning structure (13), the first injection molded part body and the counterweight (6) are coaxially arranged, the connecting structure (14) is formed between two adjacent first avoidance portions (111), and the positioning structure (13) is connected to the first injection molded part body via the connecting structure (14).

4. The clothes treating device according to claim 3, characterized in that: The first injection molded part body is provided with two groups of the first avoidance portions (111) correspondingly on both sides along its axial direction, and each group of the first avoidance portions (111) has three first avoidance portions (111). The number of the positioning structures (13) is two, and the two positioning structures (13) are correspondingly arranged at the two ends of the counterweight block (6). The two positioning structures (13) are connected to the first injection molded part body via the connecting structure (14).

5. The clothes treating device according to claim 3, characterized in that: The second injection molded part (12) further comprises a positioning groove, wherein the positioning groove is arranged opposite to the positioning structure (13) and matches the shape of the positioning structure (13).

6. A method for molding an injection molded part according to any one of claims 1 to 5, characterized in that: The steps include: S1, using a fixing device to fix the counterweight (6) in the mold by connecting multiple first gripping positions on the counterweight (6); S2, injecting a first injection molded part (11), wherein the first injection molded part (11) is formed at a position relative to the first gripping station, and a first injection molded part body is formed on the peripheral side of the counterweight block (6); S3, using a fixing device to fix the first injection molded part (11) and the counterweight (6) wrapped therein in the mold by connecting multiple second gripping stations on the first injection molded part body; S4, injecting a second injection molded part (12), wherein the second injection molded part (12) is formed at the position of the first avoidance portion (111) and is connected to the first injection molded part (11) to form an integrated structure.

7. The method for forming an injection molded part according to claim 6, characterized in that: The fixing device is a three-jaw clamp. In S1 and S3, the three jaws of the fixing device are clamped at three of the first gripping stations and three of the second gripping stations along the circumferential direction.

8. The method for forming an injection molded part according to claim 7, characterized in that: In S2, the first injection molded part (11) forms the connection structure (14) at the gap between the three claws of the fixing device.

9. The method for forming an injection molded part according to claim 8, characterized in that: There is a set distance between the first gripping station and the second gripping station.

10. The method for forming an injection molded part according to claim 9, characterized in that: The fixing device is provided with a hook groove, and the hook groove is used to form a hook-shaped structure on the first injection molded part body.

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