Display window assembly, door body, dishwasher, and processing fixtures

Abstract

This utility model discloses a display window assembly, a door body, a dishwasher, and a processing fixture. The display window assembly, used in a dishwasher, includes: an outer frame configured as a hollow plastic frame; a transparent frame, the periphery of which is connected to the periphery of the outer frame, the transparent frame covering the hollow area of ​​the outer frame and adapted for at least a portion of light to pass through, the transparent frame being a plastic component integrally formed with the outer frame; and a sealing ring, connected to the outer frame and arranged around the transparent frame, the sealing ring being integrally formed with the outer frame. The display window assembly according to this utility model embodiment can improve the sealing performance of the display window assembly.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a display window assembly, a door, a dishwasher, and a processing fixture. Background Technology

[0002] Dishwashers with related technologies typically have single or double-pane glass doors. Double-pane glass doors generally include an outer door frame, an inner door frame, an inner window, and an outer window. There is a gap between the two glass windows, which are fixed to the two door frames respectively. The outer window is installed on the outer surface of the outer frame and is glued to the outer door frame during assembly. The inner window is installed on the side of the outer frame facing the washing chamber. During installation, it needs to be glued to the inner door frame with glass glue, and then the inner door frame is fixed to the outer frame with screws.

[0003] There is a gap between the glass and the inner door frame. Steam from the dishwasher can easily enter between the glass windows, causing fogging, affecting the use of the inner window, and easily leading to bacterial growth and other problems. Utility Model Content

[0004] One objective of this invention is to provide a display window assembly, a door body, a dishwasher, and a processing fixture that can improve the sealing performance of the display window assembly.

[0005] A display window assembly according to an embodiment of the present invention is used in a dishwasher, comprising: an outer frame configured as a hollow plastic frame; a transparent frame, the periphery of which is connected to the periphery of the outer frame, the transparent frame covering the hollow area of ​​the outer frame and adapted to allow at least a portion of light to pass through, the transparent frame being a plastic component integrally formed with the outer frame; and a sealing ring connected to the outer frame and arranged around the transparent frame, the sealing ring being integrally formed with the outer frame.

[0006] The display window assembly according to the embodiments of the present invention can improve the sealing performance of the display window assembly.

[0007] In addition, the display window assembly according to the above embodiments of the present invention may also have the following additional technical features:

[0008] In some embodiments, the outer frame and the transparent frame are an integral structure formed by two-stage injection molding; and / or, the outer frame and the sealing ring are an integral structure formed by two-stage injection molding.

[0009] In some embodiments, the sealing ring and the transparent frame are connected to the same side of the outer frame along the thickness direction.

[0010] In some embodiments, the outer frame and the transparent frame are frame structures made of the same material.

[0011] In some embodiments, the transparent frame is a transparent plastic frame; the outer frame is a transparent plastic frame with an opaque or semi-transparent medium added.

[0012] In some embodiments, the transparent frame includes a plate portion, the periphery of which is stacked and connected to the periphery of the outer frame.

[0013] In some embodiments, the transparent frame further includes a surrounding panel portion that connects to the periphery of the panel portion and extends away from the outer frame. The surrounding panel portion extends along the periphery of the panel portion to form a closed structure, and the panel portion and the surrounding panel portion are integrally formed.

[0014] According to an embodiment of the present invention, a door body is used for a dishwasher. The door body includes: a first door panel, the first door panel having an installation opening; the aforementioned display window assembly, the outer frame sealingly connecting the periphery of the installation opening, the transparent frame being opposite to the installation opening; and a second door panel, the second door panel and the first door panel being arranged along the thickness direction of the door body.

[0015] A dishwasher according to an embodiment of the present invention includes: a body, wherein a washing chamber is provided inside the body; and the aforementioned door for the dishwasher, wherein the door is configured to open and close the washing chamber.

[0016] According to an embodiment of the present utility model, a processing fixture for the aforementioned display window assembly includes: a first module, the first module including a first mold core; and a second module, the second module including a second mold core and a fourth mold core, the second mold core and the fourth mold core being switchably coupled with the first mold core, wherein the second mold core can be coupled with the first mold core to form a first cavity for integral molding of the outer frame, and the fourth mold core can be coupled with the first mold core to form a third cavity for integral molding of the outer frame and the transparent frame.

[0017] In some embodiments, the second module further includes a third mold core, and the second mold core, the third mold core, and the fourth mold core can be switched to cooperate with the first mold core, wherein the third mold core can cooperate with the first mold core to form a second cavity for integral molding of the outer frame and the sealing ring, and the third cavity is used for integral molding of the outer frame, the sealing ring, and the transparent frame.

[0018] In some embodiments, the first module includes a rotating member, the first mold core being disposed on the rotating member, the rotating member being rotatable about a predetermined axis for switching the first mold core with one of a second mold core, a third mold core, and a fourth mold core.

[0019] In some embodiments, the second mold core, the third mold core, and the fourth mold core are arranged at equal intervals along the same circumference centered on the predetermined axis.

[0020] In some embodiments, the number of the first mold cores is the same as the number of mold cores in the second module, and the plurality of the first mold cores are arranged at equal intervals along the same circumference centered on the predetermined axis.

[0021] In some embodiments, the first mold core is sequentially coupled with the second mold core, the third mold core, and the fourth mold core.

[0022] In some embodiments, the second mold core has a first Teflon layer; and / or, the second module further includes a first spring pin for driving the outer frame to separate from the second mold core.

[0023] In some embodiments, the third mold core has a second Teflon layer; and / or, the second module further includes a second spring pin for driving the structure integrally formed with the outer frame and the sealing ring to separate from the third mold core. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a display window assembly according to an embodiment of the present invention.

[0025] Figure 2 This is an exploded view of a display window assembly according to an embodiment of the present invention.

[0026] Figure 3 This is a cross-sectional view of a display window assembly according to an embodiment of the present invention.

[0027] Figure 4 yes Figure 3 A magnified view of a portion of region A in the middle circle.

[0028] Figure 5 This is a schematic diagram of a door body according to an embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of a dishwasher according to one embodiment of the present invention.

[0030] Figure 7 This is a schematic diagram of a processing fixture according to one embodiment of this utility model.

[0031] Figure 8 This is a schematic diagram of the first module of the processing tooling according to an embodiment of the present invention.

[0032] Figure 9 This is a schematic diagram of the second module of the processing tooling according to an embodiment of the present invention.

[0033] Figure 10 This is a schematic diagram of the outer frame of the processing tooling according to one embodiment of the present utility model.

[0034] Figure 11This is a schematic diagram of the outer frame and sealing ring manufactured using a processing tooling according to an embodiment of this utility model.

[0035] Figure 12 This is a schematic diagram of the outer frame, sealing ring, and transparent frame manufactured using a processing fixture according to one embodiment of this utility model.

[0036] Reference numerals: 110, Display window assembly; 11, Outer frame; 12, Transparent frame; 121, Panel part; 122, Enclosure part; 13, Sealing ring; 100, Door body; 120, First door panel; 130, Second door panel; 1000, Dishwasher; 200, Machine body; 201, Washing chamber; 60, Processing fixture; 61, First module; 611, First mold core; 612, Rotating component; 62, Second module; 621, Second mold core; 622, Third mold core; 623, Fourth mold core. Detailed Implementation

[0037] In related technologies, the display window assembly is injection molded with the glass placed inside the mold, and then fitted with a sealing ring. The disadvantages are: strict requirements on glass thickness; if the glass is too thin, burrs are likely to appear during injection molding; if it's too thick, the glass is prone to shattering. Furthermore, the glass and plastic may not fuse properly, leading to steam leakage under high-temperature steam impact. Improper installation during the assembly of the sealing ring and the outer door can cause misalignment and pressure at the sealing position, resulting in water and steam leaks. Additionally, injection molding with the glass inside the mold is prone to glass breakage or burr defects, and can also cause steam leaks, and is expensive.

[0038] Therefore, this utility model provides a display window assembly, a door body, a dishwasher, and a processing fixture, which can simplify the processing of the display window assembly and improve the sealing performance of the display window assembly.

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0040] like Figures 1 to 4 This utility model embodiment provides a display window assembly 110, which can be used in a dishwasher 1000 or other devices, allowing observation of the device's operating status. The display window assembly 110 may include an outer frame 11 and a transparent frame 12. The outer frame 11 serves as a support for the display window assembly 110 and can be used for connection to other parts of the device, while the transparent frame 12 provides a transparent viewing window.

[0041] Specifically, the outer frame 11 is configured as a hollow plastic frame, and the periphery of the transparent frame 12 is connected to the periphery of the outer frame 11. The transparent frame 12 covers the hollow area of ​​the outer frame 11 and is suitable for at least a portion of light to pass through, so as to facilitate observation through the transparent frame 12. The transparent frame 12 is a plastic part and is integrally formed with the outer frame 11. By using the integral forming of the plastic outer frame 11 and the plastic transparent frame 12, the good compatibility between the plastics can be used to improve the sealing effect between the transparent frame 12 and the outer frame 11, so as to prevent steam from passing through the display window assembly 110 during the operation of the dishwasher 1000 and other equipment, thereby optimizing the display effect of the display window assembly 110.

[0042] like Figure 2 and Figure 4 The display window assembly 110 may further include a sealing ring 13, which is connected to the outer frame 11 and arranged around the transparent frame 12. The sealing ring 13 and the outer frame 11 are integrally formed. The sealing ring 13 can be used to seal the connection between the display window assembly 110 and the device.

[0043] The display window assembly 110 according to this embodiment of the present invention simplifies the manufacturing process of the display window assembly 110, improves the production efficiency of the display window assembly 110, avoids glass breakage during injection molding, improves the yield rate of the display window assembly 110, and enhances the stability and service life of the display window assembly 110. Furthermore, the use of a one-piece plastic molding method to manufacture the display window assembly 110 reduces the production cost of the display window assembly 110. The sealing ring 13 further enhances the sealing performance of the display window assembly 110. Additionally, the one-piece molding of the sealing ring 13 with the outer frame 11 improves the molding efficiency and stability of the display window assembly 110, and enhances its sealing performance.

[0044] The outer frame 11 and the transparent frame 12 in this utility model are integrally molded plastic parts. The outer frame 11 and the transparent frame 12 can be made by injection molding, extrusion molding, compression molding, blow molding or casting, etc. In this utility model, injection molding is preferred to manufacture the outer frame 11 and the transparent frame 12. Of course, this is not a limitation on the scope of protection of this utility model.

[0045] In some embodiments, the outer frame 11 and the transparent frame 12 can be an integral structure formed by secondary injection molding. The outer frame 11 and the transparent frame 12 have different technical purposes; therefore, the materials of the outer frame 11 and the transparent frame 12 are somewhat different. The outer frame 11 and the transparent frame 12 can be made of the same material or different materials. The outer frame 11 and the transparent frame 12 can be integrally molded using a secondary injection molding process. The materials of the outer frame 11 and the transparent frame 12 can be different, thereby fully considering the functions of different parts in the display window assembly 110 and optimizing the performance of the display window assembly 110.

[0046] Optionally, the outer frame 11 and the sealing ring 13 are an integral structure formed by secondary injection molding. Since the outer frame 11 and the sealing ring 13 serve different purposes, their materials may differ. The outer frame 11 and the sealing ring 13 can be made of the same material or different materials. The outer frame 11 and the sealing ring 13 can be integrally molded using a secondary injection molding process. The different materials of the outer frame 11 and the sealing ring 13 allow for full consideration of the functions of different parts of the display window assembly 110, thus optimizing the performance of the display window assembly 110.

[0047] As shown in the figure, the sealing ring 13 and the transparent frame 12 are connected to the same side of the outer frame 11 along the thickness direction. The outer frame 11 may have a first side and a second side along the thickness direction. By connecting the sealing ring 13 and the transparent frame 12 to the second side of the outer frame 11, the structure of the first side of the outer frame 11 can be simplified, making it easier to form the first side of the outer frame 11. Moreover, after the outer frame 11 is formed, it is not necessary to unload the outer frame 11 from the corresponding mold core. The transparent frame 12 and the sealing ring 13 can be integrally formed on the second side of the outer frame 11, thereby simplifying the forming efficiency of the display window assembly 110.

[0048] In some embodiments, the outer frame 11 and the transparent frame 12 are frame structures made of the same material. This includes, but is not limited to, the outer frame 11 and the transparent frame 12 being made of completely identical materials; or, the outer frame 11 and the transparent frame 12 using similar materials, such as the same material but incorporating different media. This invention, by integrally molding components of the same material, can improve the connection strength and stability between the outer frame 11 and the transparent frame 12, reducing or avoiding the possibility of gaps between them, thereby improving the sealing performance of the display window assembly 110.

[0049] For example, the outer frame 11 and the transparent frame 12 can be made of PCTG, a transparent plastic and an amorphous copolyester. The commonly used comonomer for PCTG is 1,4-cyclohexanediethanol (CHDM), also known as polyethylene terephthalate-1,4-cyclohexanediethanol ester. PCTG has good adhesion, transparency, color, chemical resistance, and stress whitening resistance. As an amorphous copolyester, PCTG products are highly transparent and have excellent impact resistance, making them particularly suitable for molding thick-walled transparent products. Its processing and molding performance is excellent, allowing for arbitrary shapes to be designed according to the designer's intentions. Traditional molding methods such as extrusion, injection molding, blow molding, and vacuum forming can be used.

[0050] Optionally, the transparent frame 12 is a transparent plastic frame; the outer frame 11 is a transparent plastic frame with an opaque or translucent medium added. The light-transmitting properties of the transparent material allow the transparent frame 12 to transmit light, facilitating observation through the transparent frame 12. Furthermore, the performance of the outer frame 11 can be optimized by adding dopant, such as increasing its structural strength. Additionally, the translucent or opaque nature of the outer frame 11 allows the display window assembly 110 to have appropriate boundaries, facilitating observation through the display window assembly 110 and reducing light dispersion by the outer frame 11.

[0051] Of course, the above description of the materials of the transparent frame 12 and the outer frame 11 is only some implementation methods of this utility model, and is not a limitation on the protection scope of this utility model.

[0052] like Figure 2 and Figure 4 In some embodiments, the transparent frame 12 includes a plate portion 121, the periphery of which is laminated and connected to the periphery of the outer frame 11. This laminated connection simplifies the connection structure between the transparent frame 12 and the outer frame 11, facilitating secondary injection molding of the two components. Furthermore, the plate portion 121 can cover the hollow structure of the outer frame 11, optimizing the sealing performance of the display window assembly 110.

[0053] The transparent frame 12 may also include a surrounding panel 122, which is connected to the periphery of the panel 121 and extends away from the outer frame 11. The surrounding panel 122 extends along the periphery of the panel 121 to form a closed structure, and the panel 121 and the surrounding panel 122 are integrally formed.

[0054] Additionally, the enclosure portion 122 can be configured with structures such as ribs, bosses, and / or grooves. The enclosure portion 122 can be used to connect with other structural components of the equipment to mount the display window assembly 110 onto other components of the equipment. For example, such as Figure 2The outer peripheral surface of the enclosure plate portion 122 is provided with a plurality of positioning ribs. The plurality of positioning ribs can be arranged to be distributed at intervals along the circumference of the enclosure plate portion 122, and the positioning ribs can be arranged to extend along the axial direction of the enclosure plate portion 122. The height of the positioning ribs relative to the outer peripheral surface of the enclosure plate portion 122 gradually decreases or at least remains at a certain level in the direction away from the plate body portion 121. The positioning ribs may include wedge-shaped portions, the height of which gradually decreases relative to the outer peripheral surface of the enclosure plate portion 122 in the direction away from the plate body portion 121. Alternatively, multiple positioning ribs may be provided on the inner circumferential surface of the enclosure plate portion 122. Similarly, the multiple positioning ribs may be arranged to be distributed at intervals along the circumference of the enclosure plate portion 122, and the positioning ribs may be arranged to extend along the axial direction of the enclosure plate portion 122. The height of the positioning ribs relative to the inner circumferential surface of the enclosure plate portion 122 gradually decreases or remains at least partially unchanged in the direction away from the plate body portion 121. The positioning ribs may include wedge-shaped portions, and the height of the wedge-shaped portions relative to the outer circumferential surface of the enclosure plate portion 122 gradually decreases in the direction away from the plate body portion 121.

[0055] Optionally, a slot may also be provided on the outer peripheral surface of the enclosure plate portion 122. The slot is recessed relative to the outer peripheral surface of the enclosure plate portion 122 to facilitate snap-fit ​​connection with other structures in the equipment. In addition, to improve the structural strength of the enclosure plate portion 122, the slot may be a non-through structure, and a protrusion may be provided on the inner surface of the enclosure plate portion 122 in the area corresponding to the slot to avoid or reduce the thinning of the wall thickness of the enclosure plate portion 122 due to the slot. Alternatively, a slot may also be provided on the inner peripheral surface of the enclosure plate portion 122. The slot is recessed relative to the inner peripheral surface of the enclosure plate portion 122 to facilitate snap-fit ​​connection with other structures in the equipment. In addition, to improve the structural strength of the enclosure plate portion 122, the slot may be a non-through structure, and a protrusion may be provided on the outer surface of the enclosure plate portion 122 in the area corresponding to the slot to avoid or reduce the thinning of the wall thickness of the enclosure plate portion 122 due to the slot.

[0056] Optionally, the enclosure panel 122 can be connected to the inner side of the outer periphery of the panel 121, and the outer side of the enclosure panel 122 is spaced apart from the outer periphery of the panel 121 to improve the structural strength and stability of the transparent frame 12. In addition, the enclosure panel 122 can also be provided with other clearance structures, which can be adjusted according to the product assembly method.

[0057] Optionally, in some examples, the door 100 having the display window assembly 110 may include a first door panel 120, the first door panel 120 having an installation opening, the surrounding panel 122 being able to pass through the installation opening, and the outer frame 11 being stacked on the first door panel 120. The surrounding panel 122 facilitates a stable connection between the transparent frame 12 and the first door panel 120, improving the sealing performance between the display window assembly 110 and the first door panel 120.

[0058] In other examples, the door 100 having the display window assembly 110 may include a first door panel 120, which has a mounting opening and a positioning groove surrounding the mounting opening. The surrounding panel portion 122 can pass through and be positioned in the positioning groove. In addition, positioning ribs may be provided on the inner side of the positioning groove. The positioning ribs may be configured such that the protrusion height of the positioning ribs gradually increases relative to the inner side along the thickness direction of the positioning groove, thereby facilitating a stable fit between the surrounding panel portion 122 and the positioning groove.

[0059] The sealing ring 13 can be made of thermoplastic vulcanizate (TPV), which can improve the sealing between the display window assembly 110 and the corresponding structure by utilizing the elasticity of the sealing ring 13.

[0060] like Figure 5 This utility model also provides a door body 100, which can be used in a dishwasher 1000. The door body 100 may include: a first door panel 120, the aforementioned display window assembly 110, and a second door panel 130. The first door panel 120 has a mounting opening, an outer frame 11 sealingly connects to the periphery of the mounting opening, a transparent frame 12 opposite to the mounting opening, and the second door panel 130 and the first door panel 120 arranged along the thickness direction of the door body 100. A cavity 103 may be formed between the transparent frame 12 and the second door panel 130. By setting the aforementioned display window assembly 110, the sealing performance of the display window assembly 110 and the first door panel 120 can be improved, thereby reducing or preventing steam from entering the cavity, improving the display effect of the display window assembly 110, and optimizing the performance of the door body 100.

[0061] In addition, such as Figure 6 This utility model also provides a dishwasher 1000, including: a body 200, with a washing chamber 201 inside the body 200; and the aforementioned door 100 for the dishwasher 1000, configured to open and close the washing chamber 201. The working status inside the washing chamber 201 can be observed using the display window assembly 110, so that the user can understand the working progress of the dishwasher 1000 and promptly detect any possible malfunctions.

[0062] In conjunction with the foregoing, the various components of the display window assembly 110 can be integrally injection molded. In order to improve the manufacturing efficiency of the display window assembly 110, this utility model provides a processing fixture 60 for manufacturing the aforementioned display window assembly 110.

[0063] like Figures 7 to 9 The present invention also provides a processing fixture 60, which can be used for the aforementioned display window assembly 110, including: a first module 61 and a second module 62.

[0064] Specifically, the first module 61 includes a first mold core 611; the second module 62 includes a second mold core 621 and a fourth mold core 623, which can be switched to cooperate with the first mold core 611. The second mold core 621 can cooperate with the first mold core 611 to form a first cavity for integral molding of the outer frame 11, and the fourth mold core 623 can cooperate with the first mold core 611 to form a third cavity for integral molding of the outer frame 11 and the transparent frame 12.

[0065] During the operation of the machining fixture 60, the first module 61 and the second module 62 close together, forming a first cavity by fitting the second mold core 621 and the first mold core 611 together. Raw materials are then injected into the first cavity, integrally forming the outer frame 11. Figure 10 The first module 61 and the second module 62 are separated, and the outer frame 11 is left in the first mold core 611. The fourth mold core 623 and the first mold core 611 are combined to construct the third cavity. At this time, the outer frame 11 is located in the first mold core 611. The raw material is injected into the third cavity, thereby integrally forming the transparent frame 12 on the outer frame 11, thus realizing the integral forming of the outer frame 11 and the transparent frame 12. Figure 12 .

[0066] According to the processing fixture 60 of this embodiment, the outer frame 11 and the transparent frame 12 can be quickly manufactured, and the outer frame 11 and the transparent frame 12 can be integrally formed, improving the manufacturing efficiency of the display window assembly 110. In addition, after the outer frame 11 is formed, the transparent frame 12 and the outer frame 11 can be integrally formed by secondary injection molding. At this time, when the display window assembly 110 is demolded, the outer frame 11 can be demolded by applying force using structures such as ejector pins, which can avoid the demolding structure of the transparent frame 12 being damaged by applying force to the transparent frame 12 during demolding.

[0067] like Figures 7 to 9 In some embodiments, the second module 62 further includes a third mold core 622. The second mold core 621, the third mold core 622 and the fourth mold core 623 can be switched to cooperate with the first mold core 611. The third mold core 622 can cooperate with the first mold core 611 to form a second cavity for integral molding of the outer frame 11 and the sealing ring 13. The third cavity is used for integral molding of the outer frame 11, the sealing ring 13 and the transparent frame 12.

[0068] During the operation of the machining fixture 60, the first module 61 and the second module 62 close together, forming a first cavity by fitting the second mold core 621 and the first mold core 611 together. Raw materials are then injected into the first cavity, integrally forming the outer frame 11. Figure 10The first module 61 and the second module 62 are separated, and the outer frame 11 is left in the first mold core 611. The third mold core 622 and the first mold core 611 are fitted together to form a second cavity. At this time, the outer frame 11 is located in the first mold core 611. The raw material is injected into the second cavity, thereby integrally forming the sealing ring 13 on the outer frame 11, thus realizing the integral forming of the outer frame 11 and the sealing ring 13. Figure 11 The first module 61 and the second module 62 are separated, and the integrally formed outer frame 11 and sealing ring 13 are left in the first mold core 611. The fourth mold core 623 is fitted with the first mold core 611 to form a third cavity. At this time, the assembly of the outer frame 11 and the sealing ring 13 is located in the first mold core 611. The raw material is injected into the third cavity, thereby integrally forming the transparent frame 12 on the outer frame 11, thus realizing the integral forming of the outer frame 11, the sealing ring 13 and the transparent frame 12. Figure 12 .

[0069] like Figure 8 The first module 61 includes a rotating member 612, and a first mold core 611 is disposed on the rotating member 612. The rotating member 612 is rotatable about a predetermined axis and is used to switchably engage the first mold core 611 with one of the second mold core 621, the third mold core 622, and the fourth mold core 623. By rotating the rotating member 612, the second mold core 621, the third mold core 622, and the fourth mold core 623 can be sequentially paired with the first mold core 611, thereby achieving rapid prototyping of the display window assembly 110 and effectively improving the prototyping efficiency of the display window assembly 110.

[0070] like Figure 9 In some examples, the second mold core 621, the third mold core 622, and the fourth mold core 623 can be arranged at equal intervals along the same circumference centered on a predetermined axis. In this way, each rotation of the rotating component 612 by a certain angle allows the second mold core 621, the third mold core 622, and the fourth mold core 623 to be paired with the first mold core 611 in sequence, simplifying the operation of the machining fixture 60.

[0071] Optionally, the second mold core 621, the third mold core 622, and the fourth mold core 623 are arranged at 120° intervals around a predetermined axis. The operation of the machining fixture 60 includes the following steps: the first module 61 and the second module 62 close, so that the second mold core 621 and the first mold core 611 cooperate to form a first cavity, and the raw material is injected into the first cavity to form the outer frame 11; the first module 61 and the second module 62 separate, and the outer frame 11 is left in the first mold core 611; the rotating component 612 rotates 120°; the first module 61 and the second module 62 close, so that the third mold core 622 and the first mold core 611 cooperate. A second cavity is constructed, and raw material is injected into the second cavity to form a sealing ring 13 on the outer frame 11; the first module 61 and the second module 62 are separated, and the integrally formed outer frame 11 and sealing ring 13 are left in the first mold core 611; the rotating component 612 rotates 120°; the first module 61 and the second module 62 are closed, so that the fourth mold core 623 and the first mold core 611 cooperate to construct a third cavity, and raw material is injected into the third cavity to form a transparent frame 12 on the outer frame 11.

[0072] In some examples, such as Figure 8 The first module 61 includes multiple first mold cores 611, the number of which is the same as the number of mold cores in the second module 62. The multiple first mold cores 611 are arranged at equal intervals around the same circumference centered on a predetermined axis. By setting multiple first mold cores 611, multiple steps in the display window assembly 110 can be performed simultaneously, thereby improving the working efficiency of the processing fixture 60. For example, when one first mold core 611 combines with a second mold core 621 to form a first cavity; another first mold core 611 can combine with a third mold core 622 to form a second cavity; and yet another first mold core 611 can combine with a fourth mold core 623 to form a third cavity, thus allowing multiple injection molding processes to be performed simultaneously.

[0073] In addition, in conjunction with one of the aforementioned embodiments, the second module 62 is provided with a second mold core 621 and a fourth mold core 623. The mold cores of the second module 62 may include the aforementioned second mold core 621 and fourth mold core 623, and the number of mold cores of the second module 62 is the total number of second mold cores 621 and fourth mold cores 623. In conjunction with another of the aforementioned embodiments, the second module 62 is provided with a second mold core 621, a third mold core 622 and a fourth mold core 623. The mold cores of the second module 62 may include the aforementioned second mold core 621, third mold core 622 and fourth mold core 623, and the number of mold cores of the second module 62 is the total number of second mold cores 621, third mold core 622 and fourth mold core 623, etc.

[0074] In some embodiments, the first mold core 611 sequentially engages with the second mold core 621, the third mold core 622, and the fourth mold core 623. The fourth mold core 623 can engage with the first mold core 611 to form a third cavity for processing and molding the transparent frame 12. As mentioned above, the structure of the transparent frame 12 is relatively complex and difficult to remove from the fourth mold core 623, while the structures of the sealing ring 13 and the outer frame 11 are relatively simple and easier to remove from the second mold core 621 and the third mold core 622. Therefore, it is convenient to retain the outer frame 11 after molding in the first mold core 611, and the outer frame 11 and the sealing ring 13 after molding in the first mold core 611, while the outer frame 11, the sealing ring 13, and the transparent frame 12 after molding in the fourth mold core 623, and finally demold from the fourth mold core 623 to complete the manufacturing of the display window assembly 110, thereby improving manufacturing efficiency.

[0075] Additionally, the second mold core 621 has a first Teflon layer; and / or, the second module 62 further includes a first spring pin for driving the outer frame 11 to separate from the second mold core 621. The third mold core 622 has a second Teflon layer; and / or, the second module 62 further includes a second spring pin for driving the structure of the outer frame 11 and the sealing ring 13 integrally formed to separate from the third mold core 622.

[0076] The display window assembly 110 in this invention can be integrally injection molded using three materials, with transparent PCTG replacing the glass in related technologies. The processing procedure is as follows:

[0077] Step 1: The first injection molding of the outer frame 11 is performed. The material of the outer frame 11 is gray PCTG. After injection molding, the product needs to remain in the first module 61. This can be achieved by adding Teflon plating to the second mold core 621 corresponding to the second module 62 to facilitate the detachment of the outer frame 11 from the second mold core 621. In addition, spring pins can be added to the second module 62 for assistance. The ejector rod of the injection molding machine ejects the rotating part 612 60mm out (the first mold core 611 and the rotating part 612 are fixed together). The servo motor drives the gear to rotate the rotating part 612 120°. After that, the ejector rod of the injection molding machine resets, and the mold can be closed to proceed to the next process.

[0078] Step 2: The second injection molding sealing ring 13 is made of TPV material. After injection molding, the product remains in the first module 61. Teflon plating can be added to the fourth mold core 623 corresponding to the second module 62 to facilitate the detachment of the sealing ring 13 from the fourth mold core 623. The ejector rod of the injection molding machine ejects the rotating part 612 60MM (the first mold core 611 and the rotating part 612 are fixed together). The servo motor drives the gear to rotate the rotating part 612 120°. After that, the ejector rod of the injection molding machine resets, and the mold can be closed to proceed to the next process.

[0079] Step 3: The third injection molding of transparent frame 12 is performed. Transparent frame 12 uses transparent PCTG. After the third injection, due to the large amount of product remaining in the second module 62, the hydraulic cylinder of the second module 62 drives the ejector plate to eject the product (ejection stroke 20MM). After removing the product, the ejector plate resets. The injection molding machine ejector rod ejects the rotating part 612 60MM (the first mold core 611 is fixed together with the rotating part 612). The servo motor drives the gear, thereby rotating the rotating part 612 120°. After that, the injection molding machine ejector rod resets, and the mold can be closed for the next process.

[0080] In this utility model, the rotating part 612 is sleeved with the ejector rod and is set in the first module 61. After the rotating part 612 is ejected, it can rotate to switch states. The three cavities on this side of the entire first module 61 are completely identical. Three materials can be injected into the first module 61 at the same time, which is equivalent to the decomposition action of a product (the continuous mold of the injection mold). The injection molding machine adds two auxiliary turrets to the ordinary machine.

[0081] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0084] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A display window assembly for a dishwasher, characterized in that, include: The outer frame is configured as a hollow plastic frame. A transparent frame, the periphery of which is connected to the periphery of the outer frame, the transparent frame covering the hollow area of ​​the outer frame and adapted to allow at least a portion of light to pass through, the transparent frame being a plastic part and integrally formed with the outer frame; A sealing ring is connected to the outer frame and arranged around the transparent frame; the sealing ring and the outer frame are integrally formed.

2. The display window assembly according to claim 1, characterized in that, The outer frame and the transparent frame are an integral structure formed by two-stage injection molding; and / or, the outer frame and the sealing ring are an integral structure formed by two-stage injection molding.

3. The display window assembly according to claim 1, characterized in that, The sealing ring and the transparent frame are connected to the same side of the outer frame along the thickness direction.

4. The display window assembly according to claim 1, characterized in that, The outer frame and the transparent frame are frame structures made of the same material.

5. The display window assembly according to claim 4, characterized in that, The transparent frame is a transparent plastic frame; the outer frame is a transparent plastic frame with an opaque or semi-transparent medium added.

6. The display window assembly according to claim 1, characterized in that, The transparent frame includes a plate portion, the periphery of which is stacked and connected to the periphery of the outer frame.

7. The display window assembly according to claim 6, characterized in that, The transparent frame also includes a surrounding panel, which is connected to the periphery of the panel and extends away from the outer frame. The surrounding panel extends along the periphery of the panel to form a closed structure, and the panel and the surrounding panel are integrally formed.

8. A door for a dishwasher, characterized in that, The door body includes: The first door panel has an installation opening; The display window assembly according to any one of claims 1-7, wherein the outer frame is sealed to the periphery of the mounting port, and the transparent frame is opposite to the mounting port; The second door panel is arranged along the thickness direction of the door body, along with the first door panel.

9. A dishwasher, characterized in that, include: The machine body, wherein a washing chamber is provided inside the machine body; The door of a dishwasher as claimed in claim 8, the door being configured to open and close the washing chamber.

10. A machining fixture for the display window assembly according to any one of claims 1-7, characterized in that, include: The first module includes a first core; The second module includes a second mold core and a fourth mold core, which are switchable in engaging with the first mold core. The second mold core can cooperate with the first mold core to form a first cavity for integral molding of the outer frame, and the fourth mold core can cooperate with the first mold core to form a third cavity for integral molding of the outer frame and the transparent frame.

11. The machining tooling according to claim 10, characterized in that, The second module further includes a third mold core, and the second mold core, the third mold core, and the fourth mold core can be switched to cooperate with the first mold core. The third mold core can cooperate with the first mold core to form a second cavity for the integral molding of the outer frame and the sealing ring. The third cavity is used for the integral molding of the outer frame, the sealing ring and the transparent frame.

12. The machining tooling according to claim 11, characterized in that, The first module includes a rotating component, and the first mold core is disposed on the rotating component. The rotating component is rotatable about a predetermined axis for the first mold core to be switchably engaged with one of the second mold core, the third mold core, and the fourth mold core.

13. The machining tooling according to claim 12, characterized in that, The second mold core, the third mold core, and the fourth mold core are arranged at equal intervals along the same circumference centered on the predetermined axis; And / or, the first module includes a plurality of first mold cores, the number of first mold cores being the same as the number of mold cores in the second module, and the plurality of first mold cores being arranged at equal intervals along the same circumference centered on the predetermined axis; And / or, the first mold core is sequentially coupled with the second mold core, the third mold core and the fourth mold core.

14. The machining tooling according to claim 10, characterized in that, The second mold core has a first Teflon layer; and / or, the second module further includes a first spring pin for driving the outer frame to separate from the second mold core.

15. The machining tooling according to claim 11, characterized in that, The third mold core has a second Teflon layer; and / or, the second module further includes a second spring pin for driving the structure integrally formed with the outer frame and the sealing ring to separate from the third mold core.

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