Handles, garment processing equipment and handle molds

Abstract

This invention discloses a handle, a garment processing device, and a handle mold. The handle is an integrally injection-molded part and includes a connecting plate. One surface of the connecting plate in the thickness direction is an external surface, and the other surface is a non-external surface. The connecting plate has multiple edge portions connected end-to-end, and the connection point of two adjacent edge portions defines a corner portion. One of the corner portions is a preset corner portion, and the preset corner portion has a first gate forming area on the non-external surface of the connecting plate, suitable for corresponding to the first gate of the handle mold. The handle according to this invention can reduce flow marks, improve the product qualification rate of the handle, and meet the user's needs.

Description

Technical Field

[0001] This invention relates to the field of injection molding technology, and in particular to a handle, a garment processing device, and a handle mold. Background Technology

[0002] Generally, household appliances such as front-loading washing machines use handles to open and close the dispenser box, which meets both functional and aesthetic requirements.

[0003] In related technologies, flow marks are prone to appear on the product during injection molding of handles. When heavy flow marks appear on the surface of the handle, it not only leads to a low product qualification rate and high cost, but also fails to meet the user's needs. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a handle with a high pass rate and good product quality.

[0005] The present invention also proposes a garment processing device having the above-mentioned handle.

[0006] The present invention also proposes a handle mold for forming the above-mentioned handle.

[0007] According to a first aspect of the present invention, the handle is an integrally injection molded part, and the handle includes: a connecting plate, one side surface of the connecting plate in the thickness direction is an appearance surface, and the other side surface is a non-appearance surface, the connecting plate has a plurality of edge portions connected end to end, the connection of two adjacent edge portions defines a corner portion, one of the corner portions is a preset corner portion, and the preset corner portion has a first gate forming area on the surface of the non-appearance surface of the connecting plate that is suitable for corresponding to a first gate of the handle mold.

[0008] According to the embodiments of the present invention, by setting the first gate forming area at a preset corner of the non-appearance surface of the connecting plate, the flow marks of the connecting plate can be reduced to a certain extent, which is beneficial to improving the product qualification rate of the handle, reducing costs, and meeting the user's usage needs.

[0009] In some embodiments, the handle further includes: a first connecting rib, the first connecting rib being disposed on the non-visual surface of the connecting plate, the first connecting rib extending along a first direction and located on one side of the first gate forming area in the first direction, the first gate forming area being offset from the first connecting rib in a second direction, the second direction being perpendicular to the first direction.

[0010] According to some embodiments of the present invention, the connecting plate includes a first plate, the first connecting rib is disposed on a non-visual surface of the first plate, and the first plate defines the preset corner portion. In the second direction, from one end of the first plate adjacent to the preset corner portion to one end of the first plate away from the preset corner portion, the wall thickness of the first plate gradually decreases.

[0011] According to some embodiments of the present invention, the maximum wall thickness of the first plate ranges from 2.5 mm to 3.2 mm; and / or, the minimum wall thickness of the first plate ranges from 1.8 mm to 2.5 mm.

[0012] According to some embodiments of the present invention, in the second direction, the difference between the wall thickness of the end of the first plate adjacent to the preset corner portion and the wall thickness of the end of the first plate away from the preset corner portion ranges from 0.5 mm to 0.8 mm.

[0013] According to some embodiments of the present invention, the wall thickness of the first plate ranges from 2.2 mm to 2.8 mm.

[0014] According to some embodiments of the present invention, the handle further includes: a buckle, the buckle being connected to the end of the first connecting rib away from the connecting plate, the end of the first connecting rib away from the buckle having a thinned portion, the thinned portion being disposed opposite to the buckle.

[0015] According to some embodiments of the present invention, there are multiple first connecting ribs, and the multiple first connecting ribs are spaced apart along the second direction. The handle further includes at least one second connecting rib, which is disposed on the non-visual surface of the connecting plate and is connected between two adjacent first connecting ribs. The second connecting rib extends in a direction inclined relative to the second direction.

[0016] According to some embodiments of the present invention, the angle between the extension direction of the second connecting rib and the first direction is α, 30°≤α≤75°; and / or, the second connecting rib includes a first body portion and a first connecting portion, the first connecting portion being connected between the connecting plate and the first body portion, and the thickness of the first connecting portion being greater than or equal to 1 mm.

[0017] According to some embodiments of the present invention, the handle further includes: a third connecting rib, the third connecting rib being disposed on the non-exterior surface of the connecting plate, and the third connecting rib being connected to one end of the length of the first connecting rib, the third connecting rib extending along the second direction, the third connecting rib including a second body portion and a second connecting portion, the second connecting portion being connected between the connecting plate and the second body portion, the thickness of the second connecting portion being in the range of 2Δh to 3Δh, where Δh is the thickness of the solidified layer formed by the melt contacting the cavity of the handle mold during the injection molding process of the handle.

[0018] According to some embodiments of the present invention, the ratio of the height of the second connecting portion to the height of the third connecting rib is in the range of 1 / 8 to 1 / 10.

[0019] According to some embodiments of the present invention, the handle further includes: a side plate, one end of which is connected to the outer edge of the connecting plate in the first direction and to the preset corner portion, and the surface of the side plate facing away from the connecting plate in the thickness direction is the appearance surface.

[0020] According to some embodiments of the present invention, the connecting plate includes a first plate and a second plate, the first plate defining the preset corner portion, the second plate being connected to one end of the first plate in the second direction, and the second plate being disposed opposite to the preset corner portion, and the second plate having a fastening portion.

[0021] According to some embodiments of the present invention, the fastening portion is formed as a through hole, and the handle further includes: at least one fastening rib, the fastening rib being disposed on a non-exterior surface of the first plate, the fastening rib being disposed adjacent to the through hole, and the fastening rib being opposite to the through hole.

[0022] According to some embodiments of the present invention, the retaining rib extends in a wavy shape along the first direction.

[0023] According to some embodiments of the present invention, the retaining rib has crests and troughs, the distance between the crests and the troughs in the first direction is L, and the distance between the crests and the troughs in the second direction is H, where 1.5 ≤ L / H ≤ 5.

[0024] According to some embodiments of the present invention, the connecting plate further includes a third plate, one end of which is connected to the end of the second plate away from the first plate, and the non-exterior surface of the third plate is provided with a second gate forming area adapted to correspond to the second gate of the handle mold.

[0025] According to some embodiments of the present invention, the handle further includes: a limiting structure disposed on the non-appearance surface of the connecting plate, the limiting structure including a third body part and a third connecting part, the third connecting part being connected between the third body part and the connecting plate, the thickness of the third connecting part being in the range of 2Δh to 3Δh, where Δh is the thickness of the solidified layer formed by the melt contacting the cavity of the handle mold during the injection molding process of the handle.

[0026] According to some embodiments of the present invention, the handle is made of a paint-free material.

[0027] A garment handling apparatus according to a second aspect of the present invention includes a handle according to the first aspect of the present invention described above.

[0028] According to the clothing processing equipment of the present invention, by adopting the above-described handle, the product qualification rate can be improved, the cost can be reduced, and the user's needs can be met.

[0029] According to a third aspect embodiment of the present invention, a handle mold for forming a handle is provided, wherein the handle is a handle according to the first aspect embodiment of the present invention described above. The handle mold includes: a handle core, the handle core having a cavity, the cavity including a first cavity and a second cavity, the first cavity having a first wall surface and a second wall surface, the first wall surface being used to form the outer surface of the connecting plate, the second wall surface being used to form the non-outer surface of the connecting plate, and a first gate being provided at a corner of the second wall surface.

[0030] According to an embodiment of the present invention, the handle mold for forming a handle has a first gate located at the corner of the second wall of the first cavity, which is beneficial to the stability of material flow in the cavity, reduces flow marks on the connecting plate to a certain extent, improves the product qualification rate of the handle, reduces costs, and meets the user's needs.

[0031] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0033] Figure 1 This is a schematic diagram of a handle according to an embodiment of the present invention;

[0034] Figure 2 yes Figure 1 An enlarged view of the circled area at point A shown in the diagram;

[0035] Figure 3 yes Figure 1 The sectional view shown in the FF direction;

[0036] Figure 4 yes Figure 3 An enlarged view of the circled area at point C shown in the diagram;

[0037] Figure 5 yes Figure 1 Another schematic diagram of the handle shown;

[0038] Figure 6 yes Figure 5 An enlarged view of the circled area at point D shown;

[0039] Figure 7 yes Figure 1 Another schematic diagram of the handle shown;

[0040] Figure 8 yes Figure 1 A schematic diagram of the retaining ribs shown;

[0041] Figure 9 yes Figure 1 Another schematic diagram of the handle shown;

[0042] Figure 10 yes Figure 9 An enlarged view of the circled area at point E shown;

[0043] Figure 11 This is a schematic diagram of the flow of material melt forming the second connecting rib according to an embodiment of the present invention;

[0044] Figure 12 This is a schematic diagram of the flow of a material melt according to an embodiment of the present invention;

[0045] Figure 13 This is a schematic diagram of the structure of a handle mold according to an embodiment of the present invention;

[0046] Figure 14 yes Figure 13 A schematic diagram of the handle core of the handle mold shown;

[0047] Figure 15 yes Figure 13 An exploded view of the handle core shown;

[0048] Figure 16 yes Figure 13 Another exploded view of the handle mold shown.

[0049] Figure label:

[0050] 10-Handle

[0051] 1-Connecting plate, 11-First plate, 14-Preset corner, 15-First gate forming area

[0052] 12-Second plate, 121-Holding part, 13-Third plate, 131-Second gate forming area,

[0053] 2-First connecting rib, 21-Notch, 22-Snap fastener, 23-Thinned section,

[0054] 3-Second connecting rib, 31-First body part, 32-First connecting part,

[0055] 4-Third connecting rib, 41-Second body part, 42-Second connecting part,

[0056] 5-Side plate, 7-Holding rib, 9-Limiting structure, 91-Third body part, 92-Third connecting part

[0057] 100 - Handle mold, 101 - Handle mold core, 101c - First gate, 101d - Second gate. Detailed Implementation

[0058] Embodiments of the present invention 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 are only used to explain the present invention, and should not be construed as limiting the present invention.

[0059] Clothing handling equipment, such as drum washing machines, is equipped with handles to allow users to operate the equipment or its components. For example, a washing machine may include a dispenser for holding detergent, fabric softener, etc., with a handle to allow the user to pull open or close the dispenser. This could be a pull-out design, where the user can extend or retract the dispenser using the handle. Thus, the handle fulfills both functional and aesthetic requirements.

[0060] Generally, handles are manufactured using injection molding followed by spraying. While spray-coated handles have a striking metallic appearance, the process suffers from drawbacks such as high pollution, high cost, low yield, and non-recyclability after disposal, severely impacting the environment and the health of production workers, thus contradicting the concept of green manufacturing. To address these shortcomings, paint-free thermoplastic engineering materials have emerged. Paint-free injection molding can achieve a metallic finish, eliminating the need for spraying, reducing production costs, and avoiding pollutant emissions during the spraying process.

[0061] Whether the handle is made using paint-free materials or through injection molding and spraying, for materials with poor flowability, especially paint-free materials containing metal particles, the presence of metal particles and other substances in the paint-free materials can cause uneven distribution of metal particles when the material encounters obstacles during the injection molding process. As a result, when the product is injection molded, light scattering occurs under illumination, and flow lines are visually formed on the product, leading to flow mark defects. When flow lines appear on the surface of the product, it not only results in a low product yield but also fails to meet the user's needs.

[0062] In the following description, an example is given of a paint-free material containing metal particles. That is, the handle can be a paint-free material component, comprising a resin matrix and metal particles distributed within the resin matrix. Optionally, the metal particles are copper, aluminum, or silver.

[0063] The following is for reference. Figures 1-16 The present invention describes a handle 10, a garment handling device, and a handle mold 100 according to embodiments of the present invention. The garment handling device may be a washing machine, a dryer, or a washer-dryer combo, but is not limited thereto.

[0064] like Figures 1-10 As shown, the handle 10 is an integral injection molded part. The handle mold 100 is used to mold the handle 10. The integral structure can not only ensure the structural and performance stability of the handle 10, but also facilitate molding and manufacturing. It also eliminates unnecessary assembly parts and connection processes, ensuring the reliability of the handle 10 connection. Furthermore, the integral structure has higher overall strength and stability, is easier to assemble, and has a longer service life.

[0065] like Figures 1-3 , Figure 5 , Figure 9 As shown, the handle 10 includes a connecting plate 1. One surface of the connecting plate 1 in the thickness direction is the visible surface, and the other surface in the thickness direction is the non-visual surface. That is, the visible surface and the non-visual surface of the connecting plate 1 are arranged opposite to each other in the thickness direction of the connecting plate 1. When the visible surface is located on the outside of the connecting plate 1, the non-visual surface is located on the inside of the connecting plate 1. Here, the visible surface means that when the handle 10 is applied in the garment processing equipment, the visible surface is exposed; the non-visual surface means that when the handle 10 is applied in the garment processing equipment, the non-visual surface is not exposed.

[0066] The connecting plate 1 of the handle 10 has multiple edge portions connected end to end, and the connection between two adjacent edge portions defines a corner portion, one of which is a pre-defined corner portion 14. For example, in Figure 1In the example, the connecting plate 1 can be formed as a square plate, then the connecting plate 1 has four edges connected end to end, and the connection point of any two adjacent edges defines a corner, then the connecting plate 1 has four corners, one of which is a preset corner 14; of course, the connecting plate 1 can also be formed as other polygons or polygon-like shapes, that is, the edges of the connecting plate 1 can extend along a straight line or along a curve.

[0067] The preset corner portion 14 has a first gate forming area 15 on the non-exterior surface of the connecting plate 1, which is suitable for corresponding to the first gate 101c of the handle mold 100.

[0068] Specifically, after the handle 10 is injection molded from the handle mold 100 and the handle 10 exits the mold, a portion of the material at the first gate 101c of the handle mold 100 will remain on the handle 10, forming a handle gate forming part. The first gate forming area 15 is the area where this handle gate forming part is located. It is understood that the handle 10 can be further processed to remove or partially remove the handle gate forming part. Alternatively, the handle gate forming part can be left unprocessed, i.e., retained on the handle 10. This is not specifically limited and can be set according to actual production needs.

[0069] As can be seen, in this application, the first gate forming area 15 is located on the non-appearance surface of the connecting plate 1. Therefore, the specific surface shape and surface treatment requirements of the first gate forming area 15 are relatively low, which makes it easier to process the handle gate forming part according to actual needs. Moreover, it is easy to ensure that the lines connecting the first gate forming area 15 to most of the two edge portions corresponding to the preset corner portion 14 have a non-zero angle with the extension direction of the corresponding edge portion. For example, the two edge portions corresponding to the preset corner portion 14 are the first edge portion and the second edge portion. The lines connecting the first gate forming area 15 to most of the first edge portion have a non-zero angle with the extension direction of the first edge portion, and the lines connecting the first gate forming area 15 to most of the second edge portion have a non-zero angle with the extension direction of the second edge portion. During the forming process of the handle 10, it is beneficial to reduce the flow marks on the edge portion of the connecting plate 1, thereby reducing the flow marks on the appearance surface of the connecting plate 1, and thus helping to avoid flow mark defects on the appearance surface of the handle 10, especially the appearance surface of the connecting plate 1, and improving the product yield. In addition, it facilitates the avoidance of the first gate forming area 15 from other components on the connecting plate 1.

[0070] In some embodiments, such as Figure 1 , Figure 5 and Figure 9As shown, the handle 10 also includes a first connecting rib 2, which is disposed on the non-exterior surface of the connecting plate 1. The first connecting rib 2 extends along a first direction and is located in the first gate forming area 15. On one side of the first direction, in the second direction, the first gate forming area 15 and the first connecting rib 2 are misaligned. Therefore, the first gate forming area 15 and the first connecting rib 2 are not flush in the second direction, and the second direction is perpendicular to the first direction. Thus, the relative arrangement direction of the first gate forming area 15 and the first connecting rib 2 has a non-zero angle with both the first and second directions. Since the first connecting rib 2 extends along the first direction, any line connecting any position on the first gate forming area 15 and the first connecting rib 2 has a non-zero angle with the extension direction of the first connecting rib 2 (i.e., the first direction), and the line connecting any position on the first gate forming area 15 and the first connecting rib 2 also has a non-zero angle with the second direction. Therefore, during the injection molding process of the handle 10, the material flows through the first gate 101c corresponding to the first gate forming area 15 on the handle mold 100 into the cavity of the handle mold 100 and gradually diffuses. The approximate flow direction of the material has a non-zero angle with the extension direction of the first connecting rib 2, which helps to reduce the angle between the first connecting rib 2 and the first connecting rib 2 during the molding process of the handle 10. The flow marks at the root of the handle 10, i.e. the flow marks at the connection between the first connecting rib 2 and the connecting plate 1, are reduced, which further reduces the flow marks on the surface of the connecting plate 1. This helps to avoid flow mark defects on the surface of the handle 10, especially the surface of the connecting plate 1, and further improves the product yield so as to meet the user's needs.

[0071] Compared to some techniques where the gate forming area and the connecting rib are aligned along a second direction so that the material flow direction during injection molding is basically parallel to the extension direction of the connecting rib, resulting in a large number of flow marks at the root of the connecting rib, the handle 10 of this embodiment of the invention, by offsetting the first gate forming area 15 from the first connecting rib 2 in the second direction, ensures that the line connecting any position on the first gate forming area 15 and the first connecting rib 2 has a non-zero angle with the extension direction of the first connecting rib 2. For example, the angle between the line connecting any position on the first gate forming area 15 and the first connecting rib 2 and the extension direction of the first connecting rib 2 is in the range of 30° to 45°. This helps reduce flow marks at the root of the first connecting rib 2, further reducing flow marks on the surface of the connecting plate 1, thereby avoiding flow mark defects in the handle 10, improving the product qualification rate of the handle 10, reducing costs, and meeting user needs.

[0072] In actual production, since the position of the first connecting rib 2 needs to meet the actual application requirements, the selection of the preset corner portion 14 can be reasonably set according to the position and extension direction of the first connecting rib 2.

[0073] To better explain the reason for the reduction of flow lines on the connecting plate 1 of the handle 10, the handle mold 100 of the present invention will be described below in accordance with the structure of the handle 10 described above.

[0074] like Figures 13-16 As shown, a handle mold 100 for molding a handle 10 according to an embodiment of the present invention includes a handle mold core 101. The handle mold core 101 has a cavity, including a first cavity for injection molding a connecting plate 1. The first cavity has a first wall surface and a second wall surface. The first wall surface is used to mold the outer surface of the connecting plate 1, and the second wall surface is used to mold the non-outer surface of the connecting plate 1. A first gate 101c is provided at the corner of the second wall surface, and the first gate 101c corresponds to the first gate molding area 15. The handle 10 is a handle 10 according to a first aspect embodiment of the present invention.

[0075] Therefore, according to the embodiment of the present invention, the handle mold for molding the handle 10, by setting the first gate 101c at the corner of the second wall, helps to reduce flow marks on the appearance surface of the connecting plate 1, facilitates the avoidance of flow mark defects in the handle 10, and improves product yield.

[0076] In some embodiments, the handle 10 includes a first connecting rib 2, and the cavity further includes a second cavity for injection molding the first connecting rib 2. The second cavity is connected to the side where the second wall is located, that is, the first connecting rib 2 formed after injection molding is connected to the non-exterior surface of the connecting plate 1. The second cavity extends along a first direction so that the first connecting rib 2 formed after injection molding extends along the first direction.

[0077] In the second direction, the first gate 101c is misaligned with the second cavity, so that the first gate forming area 15 on the connecting plate 1 corresponding to the first gate 101c is misaligned with the first connecting rib 2 in the second direction.

[0078] Therefore, by misaligning the first gate 101c with the second cavity extending along the first direction in the second direction, it is beneficial to reduce flow marks at the root of the first connecting rib 2 and reduce flow marks on the surface of the connecting plate 1, thereby avoiding flow mark defects in the handle 10 and improving product yield.

[0079] The following explanation, based on the structure of the handle mold 100, explains the reason for the reduction of flow marks from a theoretical perspective. The principle that the relative position setting of the first gate forming area 15 and the edge can reduce flow marks also applies.

[0080] Specifically, during injection molding, the hotter molten material enters the first cavity through the first gate 101c and then flows into the second cavity until both cavities are filled. During this flow, the molten material comes into contact with the cooler walls of both cavities, rapidly freezing to form a thin solidified layer. The arrangement of metal particles within this solidified layer determines the quality and appearance of the paint-free product. Stable flow of the molten material ensures consistent metal particle orientation, resulting in a superior product and a better appearance.

[0081] Compared to some technologies where the gate and the cavity corresponding to the connecting rib are opposite each other along the second direction, the material flow direction during injection molding is basically parallel to the extension direction of the cavity. The path of the material flowing through the cavity in the flow direction is relatively longer. The solidified layer on the cavity wall will hinder the flow of the material. Therefore, at both sides of the cavity thickness, the leading edge of the material is prone to converge in the cavity, resulting in unstable melt flow and thus causing flow marks on the product.

[0082] When the molten material flows out from the first gate 101c, it spreads outwards from the corner of the first gate 101c as the starting point. That is, the flow direction of the molten material is outwards from the first gate 101c as the center. When the molten material flows through the second cavity, because the first gate 101c and the second cavity are misaligned in the second direction, there is an angle between the approximate flow direction of the molten material and the length direction of the second cavity (i.e., the first direction) during injection molding. At this time, the molten material enters the second cavity more from the thickness side, and the distance the molten material travels through the second cavity in the flow direction is much shorter than the length of the second cavity. The path of the melt flowing through the second cavity in the flow direction is relatively shorter, which facilitates the rapid filling of the second cavity with the melt. This allows for rapid cooling and solidification on the wall of the second cavity, weakening the unstable flow field in the second cavity and making the orientation of the solidified metal powder in the second cavity more consistent. At the same time, in the melt flow direction, the leading edge of the melt is less likely to converge. For example, the melt on both sides of the thickness of the second cavity will not converge in the second cavity, thereby improving the stability of the melt flow, weakening or even eliminating the unstable flow field formed in the second cavity, reducing or avoiding flow marks at the root of the first connecting rib 2, reducing flow marks on the outer surface of the connecting plate 1, and thus making it easier to avoid flow mark defects on the handle 10.

[0083] It is understood that the second cavity has a certain thickness and length. In this application, the corresponding dimension of the second cavity in the first direction is the length of the second cavity, and the corresponding dimension of the second cavity in the second direction is the thickness of the second cavity. The length of the second cavity is much greater than the thickness of the second cavity.

[0084] According to some embodiments of the present invention, such as Figures 1-3 , Figure 5 , Figure 9 As shown, the connecting plate 1 includes a first plate 11, a first connecting rib 2 is provided on the non-exterior surface of the first plate 11, and the first plate 11 defines a preset corner portion 14. In the second direction, from one end of the first plate 11 adjacent to the preset corner portion 14 to one end of the first plate 11 away from the preset corner portion 14, the wall thickness of the first plate 11 gradually decreases.

[0085] As can be seen, this application sets a variable wall thickness region on the first plate 11, and sets the wall thickness of the variable wall thickness region to vary along the second direction, and the wall thickness gradually becomes the smallest in the direction away from the preset corner 14. Then the wall thickness of the entire first plate 11 gradually decreases along the second direction and in the direction away from the preset corner 14. The first gate forming area 15 is located at the end corresponding to the maximum thickness of the first plate 11. Thus, when using the paint-free material for injection molding, the flow of the material will be affected by the thickness change of the cavity corresponding to the first plate 11, so that the material flows stably, reduces the generation of flow marks on the appearance surface of the first plate 11, avoids the presence of flow mark defects on the appearance surface of the first plate 11, and facilitates further improvement of product yield.

[0086] To better explain why the flow marks on the surface of the first plate 11 are reduced, the following explanation will be based on the principle of the handle mold 100.

[0087] like Figures 13-16 As shown, the first cavity is used to form the first plate 11 of the connecting plate 1, and the first cavity includes a first sub-cavity. The first sub-cavity is used to form the first plate 11. Since the first plate 11 defines a preset corner portion 14, the first gate 101c corresponding to the first gate forming area 15 is formed in the first sub-cavity. In the second direction, from one end of the first sub-cavity adjacent to the first gate 101c to the end of the first sub-cavity away from the first gate 101c, the cavity thickness of the first sub-cavity gradually decreases. Therefore, in the second direction, the cavity thickness of the first sub-cavity is the smallest at the end away from the first gate 101c. During the injection molding process, when the molten material flows in the first sub-cavity, based on the thickness change of the variable thickness region, the molten material flows more easily and has less flow resistance at the thicker position. Thus, the surface of the molten material flow front will exhibit the following appearance: Figure 12As shown in the inclined plane, the actual flow direction of the molten material at each point on the leading edge is outward along the direction perpendicular to the tangent of the leading edge surface. Therefore, the flow direction at each point on the leading edge surface is divergent and will not converge. As a result, the molten material at the leading edge will not curl or overturn with each other, and the flow of the molten material is more stable. This can further reduce the flow marks on the first plate 11, further prevent the flow marks from appearing on the appearance surface of the first plate 11, further improve the pass rate of the handle 10, reduce costs, and meet the user's needs.

[0088] The following explanation states that the greater the wall thickness of the first plate 11, the greater the cavity thickness of the first sub-cavity, and the faster the flow rate of the corresponding molten material.

[0089] When the molten material is injected into the handle mold 100 under certain conditions, such as Figure 11 As shown, the temperature of the molten material drops sharply upon contact with the cold wall surface of the cavity, resulting in the formation of a solidified layer. The flow area of ​​the cavity decreases with increasing solidified layer thickness, thus the solidified layer thickness significantly affects flow resistance. The relationship between flowability s and cavity thickness h is:

[0090]

[0091] Where, η rep The viscosity is the viscosity of the material melt.

[0092] According to the fluidity formula, the fluidity *s* is directly proportional to the cube of the thickness *h*. For example, reducing the thickness by 50% will reduce the fluidity to one-eighth, which is equivalent to increasing the flow resistance by eight times. Therefore, the greater the thickness of the cavity, the smaller the flow resistance, the better the fluidity, and the faster the flow rate.

[0093] In short, according to the embodiments of the present invention, the handle mold 100 for molding the handle 10 has the advantage of ensuring the stability of the material melt flow, thereby reducing the flow marks on the first plate 11, and at least to a certain extent improving the product yield and meeting the user's usage requirements.

[0094] According to some embodiments of the present invention, the maximum wall thickness of the first plate 11 ranges from 2.5 mm to 3.2 mm (inclusive of endpoint values); and / or, the minimum wall thickness of the first plate 11 ranges from 1.8 mm to 2.5 mm (inclusive of endpoint values). It should be noted that, in the description of this application, "and / or" means including three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that simultaneously satisfies A and B.

[0095] Therefore, by reasonably setting the maximum wall thickness and / or the minimum wall thickness of the first plate 11, while ensuring the first plate 11 has good reliability, it is easy to make the first sub-cavity corresponding to the first plate 11 have a suitable thickness, so as to ensure the fluidity of the material melt in the first sub-cavity, so that the material melt fills the entire first sub-cavity, which is beneficial to ensuring the injection molding processability of the first plate 11.

[0096] Optionally, the maximum wall thickness of the first plate 11 can be 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, or 3.2mm, etc. The minimum wall thickness of the first plate 11 can be 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, or 2.5mm, etc.

[0097] According to some embodiments of the present invention, in the second direction, the difference between the wall thickness of the first plate 11 at one end adjacent to the preset corner portion 14 and the wall thickness of the first plate 11 at the end away from the preset corner portion 14 ranges from 0.5 mm to 0.8 mm (inclusive of the endpoint value). Therefore, the difference between the maximum wall thickness and the minimum wall thickness of the first plate 11 ranges from 0.5 mm to 0.8 mm. Thus, by reasonably setting the difference between the maximum and minimum wall thickness of the first plate 11, the wall thickness of the first plate 11 has a suitable gradual change trend during the gradual change process, thereby avoiding disruption of the flow of the molten material, ensuring stable material flow during the molding process, and thus facilitating further reduction of flow marks on the first plate 11.

[0098] According to some embodiments of the present invention, the wall thickness of the first plate 11 is in the range of 2.2mm to 2.8mm (including the endpoint value). Therefore, the wall thickness at any position on the first plate 11 is within the range of 2.2mm to 2.8mm. Under the premise of ensuring the first plate 11 has good reliability, it is convenient to make the first sub-cavity corresponding to the first plate 11 have a suitable thickness, so as to ensure the fluidity of the material melt in the first sub-cavity, so that the material melt fills the entire first sub-cavity, which is beneficial to ensuring the injection molding processability of the first plate 11.

[0099] According to some embodiments of the present invention, such as Figure 6As shown, the handle 10 also includes a buckle 22, which can be used to snap the handle 10 to other components of the garment processing equipment, such as the dispenser box. The buckle 22 is connected to the end of the first connecting rib 2 away from the connecting plate 1. The end of the first connecting rib 2 away from the buckle 22 has a thinning portion 23, that is, the end of the first connecting rib 2 connected to the connecting plate 1 has a thinning portion 23. The thickness of the thinning portion 23 is smaller than the thickness of other positions of the first connecting rib 2, and the thinning portion 23 is directly opposite to the buckle 22, so that there is a "material removal portion" at the root of the buckle 22 to avoid flow marks at the root of the buckle 22, that is, to avoid flow marks at the end of the first connecting rib 2 connected to the connecting plate 1.

[0100] It is understandable that the area corresponding to the thinning part 23, as well as the thickness of the thinning part 23, can be specifically set according to actual needs; for example, in Figure 6 In the example, in the length direction of the first connecting rib 2, the length of the thinning part 23 can be greater than or equal to the length of the buckle 6, and the thickness of the thinning part 23 is t, 0.3mm≤t≤0.5mm, so as to ensure that the mold cavity corresponding to the thinning part 23 is completely filled and to avoid the generation of flow marks.

[0101] In some embodiments, such as Figure 6 As shown, the end of the first connecting rib 2 away from the connecting plate 1 is provided with a notch 21. The notch 21 penetrates the end face of the first connecting rib 2 away from the connecting plate 1 and penetrates the connecting rib along the thickness direction of the first connecting rib 2. The notch 21 can be formed by a portion of the end face of the first connecting rib 2 away from the connecting plate 1 recessed towards the connecting plate 1, so that the notch 21 has a first notch wall and a second notch wall. There are two second notch walls, and the two second notch walls are respectively located at both ends of the first notch wall in the first direction.

[0102] like Figure 6 As shown, the buckle 22 is connected to the wall of the notch 21, and the two ends of the buckle 22 in the first direction are respectively spaced apart from the corresponding wall of the notch 21. Thus, the buckle 22 is connected to the wall of the first notch, and the buckle 22 is spaced apart from each wall of the second notch. In the length direction of the first connecting rib 2, the length of the thinned part 23 can be greater than or equal to the sum of the length of the buckle 6 and the length of the two notches 21.

[0103] Correspondingly, in the handle mold 100, the end of the second cavity away from the first cavity has a protrusion for forming the notch 21. The protrusion penetrates the second cavity along its thickness direction and protrudes toward the first cavity in the extending direction of the second cavity. A snap-fit ​​cavity is connected to the end of the second cavity away from the first cavity, and the snap-fit ​​cavity extends away from the first cavity.

[0104] Specifically, such as Figures 13-16 As shown, since the second cavity is connected to the first gate 101c through the first cavity, when the material melt flows in the cavity during injection molding, it will first flow through the first cavity, then flow to the second cavity, and then flow from the second cavity into the snap-fit ​​cavity. Due to the setting of the protrusion, the material melt in the second cavity can be prevented from flowing back to the second cavity through the snap-fit ​​cavity to avoid material confluence. This can at least prevent the formation of an unstable flow field at the connection between the second cavity and the snap-fit ​​cavity, thereby reducing the flow lines generated at the connection between the second cavity and the snap-fit ​​cavity, reducing the flow lines at the root of the snap-fit ​​22, reducing the flow lines on the first connecting rib 2, and improving product quality.

[0105] According to some embodiments of the present invention, such as Figure 1 , Figure 5 , Figure 9 As shown, there are multiple first connecting ribs 2, which are spaced apart along the second direction. By providing multiple first connecting ribs 2, the structural strength of the handle 10 can be further improved.

[0106] Since the first gate forming area 15 is located on the preset corner portion 14, the plurality of first connecting ribs 2 are located on the same side of the preset corner portion 14 in the second direction.

[0107] Correspondingly, in the handle mold 100, there are multiple second cavities, which are spaced apart along a second direction. After the molten material enters the first cavity, it then enters each of the second cavities in sequence.

[0108] like Figure 1 , Figure 5 and Figure 9 As shown, the handle 10 also includes at least one second connecting rib 3. The second connecting rib 3 is disposed on the non-appearance surface of the connecting plate 1, and the second connecting rib 3 is connected between two adjacent first connecting ribs 2, so as to connect multiple first connecting ribs 2 into one piece, further improving the structural strength and structural stability of the handle 10. The second connecting rib 3 extends in a direction inclined relative to the second direction, that is, the extension direction of the second connecting rib 3 is inclined relative to the second direction. Therefore, the extension direction of the second connecting rib 3 is also inclined relative to the first direction, so that the relative arrangement direction of the first gate forming area 15 and the second connecting rib 3 has a non-zero angle with the extension direction of the second connecting rib 3. In the injection molding process of the handle 10, the approximate flow direction of the material melt can have a non-zero angle with the extension direction of the second connecting rib 3, thereby reducing the flow marks at the root of the second connecting rib 3, that is, reducing the flow marks at the connection between the second connecting rib 3 and the connecting plate 1, which can further reduce the flow marks on the appearance surface of the connecting plate 1, and further avoid the appearance of flow mark defects on the appearance surface of the connecting plate 1.

[0109] Corresponding to the handle mold 100, such as Figures 13-16 As shown, the handle mold 100 also includes at least one third cavity, which is connected to the side where the second wall of the first cavity is located, and the third cavity is used to form the second connecting rib 3. The third cavity extends in a direction inclined relative to the second direction.

[0110] Specifically, during injection molding, when the molten material flows in the cavity, it first flows through the first cavity and then flows into the third cavity. Because the first gate 101c and the third cavity are offset in the second direction, the angle between the approximate flow direction of the material and the length direction of the third cavity is non-zero when the material flows through the third cavity. At this time, the material enters the third cavity from the opposite side of the thickness, which facilitates the material to quickly fill the third cavity. At the same time, the material front edge is less likely to converge in the material flow direction. For example, the melt on both sides of the thickness of the third cavity will not converge in the third cavity, so as to improve the stability of the material flow, reduce or avoid flow marks at the root of the second connecting rib 3, and reduce flow marks on the surface of the connecting plate 1, so as to further improve the product quality.

[0111] It is evident that the path of the material flowing through the third cavity along the flow direction is relatively short, which can at least reduce the formation of an unstable flow field at the connection between the third cavity and the first cavity to a certain extent, and at least reduce the material convergence caused by the material in the first cavity flowing back to the first cavity through the third cavity, thereby further reducing the flow pattern at the root of the second connecting rib 3.

[0112] In some embodiments, such as Figure 1 As shown, the first gate forming area 15 is located on one side of the thickness direction of the second connecting rib 3, which helps to increase the angle between the approximate flow direction of the material and the length direction of the third cavity, thereby further reducing the flow marks at the root of the second connecting rib 3 and improving product quality.

[0113] For example, in Figure 1 In the example, there are multiple second connecting ribs 3, which are spaced apart along the first direction and arranged in parallel. Of course, at least two of the multiple second connecting ribs 3 can also be arranged in a non-parallel manner.

[0114] According to some embodiments of the present invention, such as Figure 1 As shown, the angle between the extension direction of the second connecting rib 3 and the first direction is α, where 30°≤α≤75°. Correspondingly, in the handle mold 100, the angle between the extension direction of the third cavity and the first direction is α', where 30°≤α'≤75°. For example, α can be 30°, 40°, 45°, 50°, 60°, or 75°, etc.

[0115] In injection molding, taking α = 45° as an example, such as... Figure 1As shown, it can be found that when the angle between the flow direction of the material melt flowing out from the first gate 101c and the first direction is 30°, the angle between it and the extension direction of the third cavity can reach 75°. The material melt is more likely to flow perpendicular to the extension direction of the third cavity. At this time, the path of the material melt flowing through the third cavity is shorter, and the unstable flow field formed is weaker, which can reduce the flow lines at the connection between the second connecting rib 3 and the first plate 11.

[0116] According to some embodiments of the present invention, such as Figure 9 As shown, the second connecting rib 3 includes a first body part 31 and a first connecting part 32. The first connecting part 32 is connected between the connecting plate 1 and the first body part 31. The thickness of the first connecting part 32 is greater than or equal to 1mm, so as to reduce flow marks at the second connecting part 32 and further improve product quality while ensuring the reliable use of the second connecting rib 3.

[0117] In the handle mold 100, the third cavity includes a first body cavity and a first connecting cavity. The first connecting cavity connects the first cavity and the first body cavity, and the cavity thickness of the first connecting cavity is greater than or equal to 1 mm.

[0118] During injection molding, after the molten material flows into the relatively thin first connecting cavity, it comes into contact with the cooler and thinner wall of the first connecting cavity during its flow. The molten material can freeze more quickly on the wall of the first connecting cavity and rapidly form a solidified layer. By reasonably setting the thickness of the first connecting cavity, it is easier to reduce the backflow of the molten material at the first connecting cavity, which helps to ensure that a stable flow field is formed at the connection between the first cavity and the first connecting cavity. This reduces the flow lines at the joint between the second connecting rib 3 and the connecting plate 1 to at least a certain extent, thereby improving the product yield.

[0119] Of course, in other embodiments of this application, such as Figure 1 As shown, the angle α between the extension direction of the second connecting rib 3 and the first direction satisfies 30°≤α≤75°, and the second connecting rib 3 includes a first body part 31 and a first connecting part 32. The first connecting part 32 is connected between the connecting plate 1 and the first body part 31, and the thickness of the first connecting part 32 is greater than or equal to 1mm.

[0120] According to some embodiments of the present invention, such as Figure 9 , Figure 11 As shown, the handle 10 also includes a third connecting rib 4, which is located on the non-visual surface of the connecting plate 1 and is connected to one end of the length of the first connecting rib 2. The third connecting rib 4 extends along the second direction, so the third connecting rib 4 can be connected to one or more first connecting ribs 2 to further enhance the structural strength and structural stability of the handle 10.

[0121] The third connecting rib 4 includes a second body part 41 and a second connecting part 42. The second connecting part 42 is connected between the connecting plate 1 and the second body part 41. The thickness of the second connecting part 42 is in the range of 2△h to 3△h, where △h is the thickness of the solidified layer formed by the melt contacting the cavity of the handle mold 100 during the injection molding process of the handle 10.

[0122] It is understandable that, such as Figures 13-16 As shown, corresponding to the handle mold 100, the handle mold 100 also includes a fourth cavity, which is connected to the side where the second wall is located, and the fourth cavity is used to form the third connecting rib 4. The fourth cavity extends along the second direction and is connected to the second cavity.

[0123] When the molten material flows through a location with ribbed cavities, such as Figure 11 As shown, the flow direction of the molten material is divided into two parts. One part of the molten material continues to flow in the cavity along the original flow direction, while the other part flows to the rib cavity. In this application, when the molten material flowing into the first cavity from the first gate 101c passes through the fourth cavity, a part of the molten material continues to flow in the first cavity along the original flow direction, while the other part flows to the fourth cavity. When the molten material fills the fourth cavity, the hot molten material continues to flow back from the fourth cavity to the first cavity. With the continuous flow of subsequent molten material, an unstable flow field is formed near the root of the fourth cavity. Under the continuous action of fluid pressure, the solidified layer of the outer surface corresponding to the root of the fourth cavity is destroyed, that is, the solidified layer of the first wall at the position corresponding to the fourth cavity is destroyed, resulting in disordered orientation of the metal particles in the solidified layer in this area. After the injection molding process is completed, this manifests as flow marks on the outer surface of the connecting plate 1, causing flow mark defects on the outer surface of the connecting plate 1.

[0124] Therefore, in order to weaken and avoid the formation of an unstable flow field near the root of the fourth cavity, it is necessary to ensure that the melt flowing to the fourth cavity is reduced or even that backflow does not occur. That is, the melt flowing to the fourth cavity must be able to cool and freeze rapidly within the fourth cavity. Under the condition that other molding conditions are fixed, the fourth cavity is set to include a second body cavity and a second connecting cavity. The second connecting cavity is connected between the first cavity and the second body cavity, and the thickness of the second connecting cavity is set to be 2△h to 3△h, that is, the thickness of the second connecting part 42 is 2△h to 3△h. This effectively ensures that the fourth cavity can be filled, while avoiding the generation of spray flow marks on the third connecting rib 4.

[0125] Under the same molding process conditions, the thickness of the solidified layer is positively correlated with the filling time, that is, the shorter the filling time, the smaller the thickness of the solidified layer. For example, in the molding process of handle 10, if the filling time is selected as 4.5s, the mold temperature is 60℃, the melt temperature is 240℃, and the melt solidification stability is 210℃, the thickness of the solidified layer can be calculated to be about 0.15mm. Therefore, under a reasonable filling time, the thickness range of the second connecting part 42 in this application is 0.3mm to 0.5mm, so as to ensure that the fourth cavity is completely filled, while avoiding flow marks from the third connecting rib 4.

[0126] Furthermore, since the third connecting rib 4 is arranged along the second direction and is connected to the first connecting rib 2, it forms a mutually perpendicular reinforcing rib structure on the non-visual surface of the connecting plate 1. This allows the connecting plate 1 of the handle 10 to maintain a good structural shape under the reinforcement of the third connecting rib 4 and the first connecting rib 2 when subjected to external forces in multiple directions. At the same time, it improves the torsional and tensile resistance of the connecting plate 1 and makes the structure more stable.

[0127] According to some embodiments of the present invention, such as Figure 11 As shown, the ratio of the height of the second connecting portion 42 to the height of the third connecting rib 4 ranges from 1 / 8 to 1 / 10. The function of the third connecting rib 4 is to improve the structural strength of the connecting plate 1, while the second connecting portion 42 is provided to reduce flow lines between the third connecting rib 4 and the connecting plate 1. Therefore, by reasonably setting the height of the second connecting portion 42, the flow lines at the joint between the third connecting rib 4 and the connecting plate 1 can be reduced while ensuring the strengthening effect of the third connecting rib 4 on the connecting plate 1.

[0128] It is understandable that, corresponding to the handle mold 100, the ratio of the height of the second connecting cavity to the height of the third cavity is in the range of 1 / 8 to 1 / 10.

[0129] At this time, the thickness of the second body part 41 is greater than the thickness of the second connecting part 42, so that the overall thickness of the third connecting rib 4 can achieve the effect of strengthening the structural stability of the connecting plate 1.

[0130] Optionally, the height of the second connecting portion 42 ranges from 3mm to 5mm (including the endpoint value).

[0131] Of course, the ratio of the height of the first connecting part 32 to the height of the second connecting rib 3 can also be 1 / 8 to 1 / 10. Based on the same reason as above, it is also possible to reduce the flow lines at the joint between the second connecting rib 3 and the connecting plate 1 while ensuring the strengthening effect of the second connecting rib 3 on the connecting plate 1.

[0132] In some embodiments of the present invention, such as Figure 1 , Figure 5 and Figure 9As shown, the handle 10 includes a second connecting rib 3 and a third connecting rib 4. Both the second connecting rib 3 and the third connecting rib 4 are provided on the non-visual surface of the connecting plate 1. The second connecting rib 3 is connected between two adjacent first connecting ribs 2, and the second connecting rib 3 is inclined relative to both the first direction and the second direction. The third connecting rib 4 extends along the second direction and is connected to one end of the length of the first connecting rib 2.

[0133] The second connecting rib 3 includes a first body part 31 and a first connecting part 32. The first connecting part 32 is connected between the connecting plate 1 and the first body part 31, and the thickness of the first connecting part 32 is greater than or equal to 1 mm. The third connecting rib 4 includes a second body part 41 and a second connecting part 42. The second connecting part 42 is connected between the connecting plate 1 and the second body part 41, and the thickness of the second connecting part 42 is in the range of 2Δh to 3Δh.

[0134] As can be seen, since the extension direction of the second connecting rib 3 is different from that of the third connecting rib 4, there is a certain difference in the flow of the molten material relative to the second connecting rib 3 and the flow of the molten material relative to the third connecting rib 4 during the injection molding process of the handle 10. Therefore, the thickness requirement of the first connecting part 32 is different from that of the second connecting part 42 to adapt to the above-mentioned difference in the flow of the molten material. This facilitates the reduction of flow marks at the root of the second connecting rib 3 and the root of the third connecting rib 4, thereby further effectively reducing the flow marks on the surface of the connecting plate 1.

[0135] According to some embodiments of the present invention, such as Figures 1-2 , Figure 5 , Figure 7 , Figure 9 As shown, the handle 10 also includes a side plate 5. One end of the side plate 5 is connected to the outer edge of the connecting plate 1 in the first direction, and the side plate 5 is connected to the preset corner portion 14. The surface of the side plate 5 facing away from the connecting plate 1 in the thickness direction is the appearance surface. It can be seen that the side plate 5 is set on the outer edge of the connecting plate 1 near the preset corner portion 14, so that the side plate 5 is closer to the first gate forming area 15, ensuring that the material flowing from the first gate 101c to the first cavity a can flow stably into the part of the cavity corresponding to the side plate 5 (for example, the side plate cavity described below), thereby reducing flow marks on the side plate 5 to a certain extent, and then reducing flow marks on the appearance surface of the side plate 5, further improving the quality of the handle 10.

[0136] Correspondingly, in the handle mold 100, the handle mold 100 also includes a side plate cavity. One end of the side plate cavity is connected to the outer edge of the first cavity near the first gate 101c in the first direction. The wall surface of the side plate cavity facing away from the first cavity in the thickness direction is used to form the appearance surface.

[0137] The following explanation, using the handle mold 100 as an example, explains the reason for the reduction of flow marks on the side plate 5: During injection molding, the molten material enters the first cavity from the first gate 101c. Since the side plate cavity is adjacent to the first gate 101c, when the molten material flows in the first cavity, a portion of the molten material can flow directly to the side plate cavity. This shortens the path of the molten material from the first gate 101c to the side plate cavity, which helps to ensure that the molten material flows stably from the first cavity to the side plate cavity. This reduces the flow marks at the junction of the side plate cavity and the first cavity, as well as on the side plate cavity, thus improving the yield of the handle 10 product to a certain extent and meeting the user's needs.

[0138] According to some embodiments of the present invention, such as Figures 1-2 As shown, the connecting plate 1 includes a first plate 11 and a second plate 12. The first plate 11 defines a preset corner portion 14. The second plate 12 is connected to one end of the first plate 11 in a second direction, and the second plate 12 is disposed opposite to the preset corner portion 14. Thus, the second plate 12 can be connected to the end of the first plate 11 away from the preset corner portion 14 in the second direction. The second plate 12 has a holding part 121, through which the user can operate the handle 10, such as moving the handle 10, to facilitate opening and closing the handle 10, making the operation of the handle 10 simpler and more convenient.

[0139] like Figure 1 and Figure 2 As shown, the handle 10 includes a first connecting rib 2, which is disposed on the non-visual surface of the first plate 11.

[0140] Corresponding to the handle mold 100, such as Figures 13-16 As shown, the handle mold 100 also includes a fifth cavity for forming the second plate 12. The fifth cavity is connected to one end of the first cavity in the second direction, and the fifth cavity is opposite to the first gate 101c, that is, the fifth cavity is connected to the end of the first cavity away from the first gate 101c. A clamping cavity for forming the clamping part 121 is also connected to the fifth cavity. During the injection molding process, after the material melt enters the first cavity from the first gate 101c, it flows through the second cavity, the third cavity and the fourth cavity, and then flows into the fifth cavity and the clamping cavity. After solidification, the second plate 12 and the clamping part 121 are formed.

[0141] Furthermore, such as Figure 1 , Figure 5 , Figures 7-9 As shown, the holding part 121 is formed as a through hole, and the handle 10 also includes at least one holding rib 7. The holding rib 7 is provided on the non-exterior surface of the first plate 11. The holding rib 7 is provided adjacent to the through hole and is opposite to the through hole. When the user operates the holding part 121, he / she can contact the holding rib 7 through the through hole so that the user can stably operate the handle through the holding rib 7.

[0142] Correspondingly, the handle mold 100 also includes at least one retaining rib cavity for forming the retaining rib 7. The retaining rib cavity is connected to the side where the second wall surface is located, that is, the retaining rib 7 formed after injection molding is located on the non-exterior surface of the connecting plate 1. The retaining rib cavity is adjacent to and opposite to the retaining cavity to ensure that the formed retaining rib 7 is located near the through hole and can directly contact the retaining rib 7 through the through hole.

[0143] It is understandable that the second plate 12 is also located on the non-exterior surface of the connecting plate 1. The through hole formed by the buckling part 121 penetrates the non-exterior surface and the exterior surface of the second plate 12. When a person needs to pull the handle 10, the person puts their hand into the through hole from the exterior surface side and contacts the buckling rib 7. The buckling rib 7 can provide a certain feel and friction between the hand and the handle, making the process of pulling the handle 10 easier and more convenient.

[0144] According to some embodiments of the present invention, such as Figure 8 As shown, the retaining rib 7 extends in a wavy shape along the first direction, which at least to some extent reduces flow lines on the surface of the retaining rib 7 and at the joint between the retaining rib 7 and the connecting plate 1, while also improving the tactile feel of the retaining rib 7 and further enhancing the operating feel. Corresponding to the handle mold 100, the retaining rib cavity extends in a wavy shape along the first direction to ensure that the retaining rib 7 formed after injection molding is wavy and extends along the first direction.

[0145] The following explanation, using the handle mold 100 as an example, explains the reason for the reduced flow lines at the joint between the retaining rib 7 and the connecting plate 1: During injection molding, as shown in Figure 13- Figure 16 As shown, the handle mold 100 has a first gate 101c located at the corner of the second wall. When the molten material flows out from the first gate 101c, the molten material will spread outward from the first gate 101c at the corner as the starting point of the flow. That is, the flow direction of the molten material is to spread outward from the first gate 101c as the center. Since the retaining rib cavity is set at the position opposite to the retaining cavity, the retaining rib cavity is offset from the first gate 101c in the second direction, so that the flow direction of the molten material flowing out from the first gate 101c and reaching the retaining rib cavity has a non-zero angle with the extension direction at any position on the retaining rib 7, so as to reduce the flow lines on the surface of the retaining rib 7 and the connection between the retaining rib 7 and the connecting plate 1.

[0146] It can be observed that, for example Figure 8As shown, the angle between the flow direction of the molten material flowing into the clamping rib cavity and the tangent at any position of the clamping rib 7 is a1. Compared with the angle between the flow direction of the molten material and the first direction, which is a2, the angle a1 at some positions of the clamping rib cavity is larger than the angle a2. Therefore, the molten material can flow into the clamping rib cavity at a larger angle to a greater extent. From an overall perspective, the molten material can at least to a certain extent reduce the path of the molten material flowing through the clamping rib cavity, allowing the molten material to cool and form a solidified layer more quickly in the clamping rib cavity. This weakens the unstable flow field at the clamping rib cavity, making the orientation of the solidified metal powder at the clamping rib cavity more consistent. At least to a certain extent, this can reduce the flow marks at the joint between the clamping rib cavity and the connecting plate 1, thereby reducing the flow marks on the connecting plate 1 of the handle 10. This achieves the effect of improving the product qualification rate of the handle 10, reducing costs, and meeting the user's needs.

[0147] Furthermore, such as Figure 1 , Figure 8 As shown, multiple retaining ribs 7 are provided and are distributed parallel to each other along the second direction on the connecting plate 1 to form a retaining part on the non-visual surface of the connecting plate 1 that facilitates pulling open the handle 10. This increases the coverage area of ​​the retaining ribs 7, making it easier for users to access the retaining ribs 7 and obtain greater friction and a better feel, making the process of pulling open the handle 10 more comfortable and convenient.

[0148] According to some embodiments of the present invention, such as Figure 8 As shown, the retaining rib 7 has crests and troughs. The distance between the crests and troughs in the first direction is L, and the distance between the crests and troughs in the second direction is H, where 1.5 ≤ L / H ≤ 5. The distance the retaining rib 7 extends in the first direction is greater than the floating distance between the crests and troughs of the retaining rib 7. With a fixed length of retaining rib 7, it can have more corrugated structures, making the retaining rib 7 feel better and providing better friction. At the same time, more corrugated structures also allow the molten material to flow into the retaining rib cavity at a greater angle, reducing the path of the molten material flowing through the retaining rib cavity to a certain extent, thereby reducing the flow lines at the joint between the retaining rib cavity and the connecting plate 1 to a certain extent, thus improving the product qualification rate of the handle 10.

[0149] Optionally, 15mm≤L≤25mm, 5mm≤H≤10mm.

[0150] According to some embodiments of the present invention, such as Figures 1-2 , Figure 5 , Figure 9As shown, the connecting plate 1 also includes a third plate 13, one end of which is connected to the end of the second plate 12 that is away from the first plate 11. The non-exterior surface of the third plate 13 is provided with a second gate forming area 131 that is suitable for corresponding to the second gate 101d of the handle mold 100.

[0151] As can be seen, the second plate 12 is connected between the third plate 13 and the first plate 11. The two sides of the thickness of the third plate 13 are the appearance surface and the non-appearance surface of the third plate 13, respectively. The non-appearance surface of the third plate 13 and the non-appearance surface of the first plate 11 are located on the same side of the handle 10. The first plate 11 can be the main plate of the handle 10, and the third plate 13 can be the sub-plate of the handle 10. By adding a second gate 101d to the first gate 101c, the efficiency of the handle molding process can be improved and the integrity of the handle 10 molding can be guaranteed. At the same time, during the injection molding process, the timing of the injection of molten material into the second gate 101d relative to the first gate 101c can be adjusted to avoid the presence of a weld line after the material flowing into the cavity through the first gate 101c and the second gate 101d solidifies. Even if a weld line exists after solidification, it will not be located on the main plate of the handle 10, i.e., the first plate 11, thus ensuring the quality of the handle 10. For example, the first gate 101c can be opened first and the material can be injected into the cavity through the first gate 101c. After a preset time, the material from the first gate 101c can flow to the second gate 101d and solidify. Then, the second gate 101d can be opened again to continue injecting material into the cavity until the cavity is full.

[0152] Accordingly, such as Figures 13-16 As shown, the handle mold 100 also includes a sixth cavity for molding the third plate 13. One end of the sixth cavity is connected to the end of the fifth cavity away from the first cavity. The sixth cavity is provided with a second gate 101d.

[0153] Optionally, at the aforementioned preset time, multiple process parts can be fabricated using the handle mold 100 to determine the moment when the molten material is injected into the second gate 101d through experimentation. Specifically, taking the moment when the molten material is injected into the first gate 101c as the zero point, the distance between the molten material injected from the first gate 101c and the sixth cavity (i.e., the third plate 13) is recorded every unit of time. Through multiple experiments and records, the moment when the molten material injected from the first gate 101c reaches the sixth cavity can be determined.

[0154] According to some embodiments of the present invention, such as Figure 1 , Figure 5 , Figures 9-10As shown, the handle 10 also includes a limiting structure 9, which is located on a non-exterior surface of the connecting plate 1. The limiting structure 9 can be used to achieve a limiting fit between the handle 10 and other components of the garment processing equipment, facilitating quick installation of the handle 10. For example, the handle 10 can be snapped together with the dispenser box. The limiting structure 9 can achieve pre-positioning between the handle 10 and the dispenser box, so that the handle 10 can be snapped onto the dispenser box more efficiently and accurately, improving the installation accuracy of the handle 10.

[0155] Furthermore, such as Figure 10 As shown, the limiting structure 9 includes a third body portion 91 and a third connecting portion 92. The third connecting portion 92 connects the third body portion 91 and the connecting plate 1. The thickness of the third connecting portion 92 ranges from 2Δh to 3Δh, where Δh is the thickness of the solidified layer formed when the melt contacts the cavity of the handle mold 100 during the injection molding process of the handle 10. This ensures that the portion of the cavity used to form the limiting structure 9 (e.g., the limiting cavity described below) is fully filled, while avoiding the generation of spray marks on the limiting structure 8.

[0156] Corresponding to handle mold 100, such as Figure 13 As shown, the handle mold 100 also includes a limiting cavity for forming the limiting structure 9. The limiting cavity is connected to the second wall surface. The limiting cavity includes a third body cavity and a third connecting cavity. The third connecting cavity is connected between the first cavity and the third body cavity.

[0157] Under the same molding process conditions, the thickness of the solidified layer is positively correlated with the filling time, that is, the shorter the filling time, the smaller the thickness of the solidified layer. For example, in the molding process of the handle 10, if the filling time is selected as 4.5s, the mold temperature is 60℃, the melt temperature is 240℃, and the melt solidification stability is 210℃, the thickness of the solidified layer can be calculated to be about 0.15mm. Therefore, under a reasonable filling time, the thickness range of the third connecting part 92 in this application is 0.3mm to 0.5mm, so as to ensure that the limiting cavity is completely filled, while avoiding flow marks from the limiting structure 9.

[0158] Optionally, in Figure 1 , Figure 5 and Figure 9 In the example, the limiting structure 9 is a hollow annular column. One end of the annular column is connected to a non-exterior surface of the connecting plate 1, and the other end extends away from the connecting plate 1. Correspondingly, positioning ribs into which the annular column can be inserted are provided on other components of the garment handling equipment, such as the dispenser box. When installing the handle 10, aligning the hollow part of the annular column with the positioning ribs ensures the movement path for the handle 10 to engage with the aforementioned components, thereby enabling the handle 10 to be installed more accurately. Of course, the structure of the limiting structure 9 is not limited to this.

[0159] A garment handling apparatus (not shown) according to a second aspect embodiment of the present invention includes a handle 10 according to the second aspect embodiment described above.

[0160] According to an embodiment of the present invention, the garment processing equipment (not shown in the figure) can improve the product qualification rate, reduce costs, and meet the user's needs by adopting the handle 10 described above.

[0161] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not 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 the invention. In the description of this invention, "first feature" and "second feature" may include one or more of the features. In the description of this invention, "a plurality of" means two or more. In the description of this invention, "above" or "below" the second feature may include direct contact between the first and second features, or it may include contact between the first and second features not in direct contact but through another feature between them. In the description of this invention, "above," "over," and "on top" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0162] Other components of the garment processing apparatus according to embodiments of the present invention, such as motors and control systems, as well as their operation, are known to those skilled in the art and will not be described in detail here.

[0163] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "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 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.

Claims

1. A handle, characterized in that, The handle is a one-piece injection molded part, and the handle includes: A connecting plate, wherein one side surface of the connecting plate in the thickness direction is an external surface and the other side surface is a non-external surface, the connecting plate has a plurality of edge portions connected end to end, and the connection point of two adjacent edge portions defines a corner portion, one of which is a preset corner portion, and the preset corner portion has a first gate forming area on the non-external surface of the connecting plate that is suitable for corresponding to the first gate of the handle mold. The first connecting rib, there are multiple first connecting ribs, the first connecting ribs are disposed on the non-appearance surface of the connecting plate, the first connecting ribs extend along a first direction and are located on one side of the first gate forming area in the first direction, in a second direction, the first gate forming area and the first connecting ribs are offset, the second direction is perpendicular to the first direction, the connecting plate includes a first plate, the first connecting ribs are disposed on the non-appearance surface of the first plate, and the first plate defines the preset corner portion.

2. The handle according to claim 1, characterized in that, In the second direction, from one end of the first plate adjacent to the preset corner portion to the other end of the first plate away from the preset corner portion, the wall thickness of the first plate gradually decreases.

3. The handle according to claim 2, characterized in that, The maximum wall thickness of the first plate ranges from 2.5 mm to 3.2 mm; and / or the minimum wall thickness of the first plate ranges from 1.8 mm to 2.5 mm.

4. The handle according to claim 2, characterized in that, In the second direction, the difference between the wall thickness of the end of the first plate adjacent to the preset corner and the wall thickness of the end of the first plate away from the preset corner ranges from 0.5mm to 0.8mm.

5. The handle according to claim 2, characterized in that, The wall thickness of the first plate ranges from 2.2 mm to 2.8 mm.

6. The handle according to claim 1, characterized in that, The handle also includes: A buckle is connected to the end of the first connecting rib away from the connecting plate. The end of the first connecting rib away from the buckle has a thinned portion, which is positioned opposite the buckle.

7. The handle according to claim 1, characterized in that, The plurality of first connecting ribs are spaced apart along the second direction, and the handle further includes: At least one second connecting rib is disposed on the non-visual surface of the connecting plate and is connected between two adjacent first connecting ribs, the second connecting rib extending in a direction inclined relative to the second direction.

8. The handle according to claim 7, characterized in that, The angle between the extension direction of the second connecting rib and the first direction is α, 30°≤α≤75°; and / or, the second connecting rib includes a first body portion and a first connecting portion, the first connecting portion being connected between the connecting plate and the first body portion, and the thickness of the first connecting portion being greater than or equal to 1mm.

9. The handle according to claim 1, characterized in that, Also includes: The third connecting rib is disposed on the non-exterior surface of the connecting plate and is connected to one end of the length of the first connecting rib. The third connecting rib extends along the second direction and includes a second body part and a second connecting part. The second connecting part is connected between the connecting plate and the second body part. The thickness of the second connecting part is in the range of 2△h~3△h, where △h is the thickness of the solidified layer formed by the melt contacting the cavity of the handle mold during the injection molding process.

10. The handle according to claim 9, characterized in that, The ratio of the height of the second connecting part to the height of the third connecting rib is in the range of 1 / 8 to 1 / 10.

11. The handle according to claim 1, characterized in that, Also includes: The side plate has one end connected to the outer edge of the connecting plate in a first direction and to the preset corner portion. The surface of the side plate facing away from the connecting plate in the thickness direction is the appearance surface.

12. The handle according to claim 1, characterized in that, The connecting plate includes a first plate and a second plate. The first plate defines the preset corner portion. The second plate is connected to one end of the first plate in a second direction and is disposed opposite to the preset corner portion. The second plate has a fastening portion.

13. The handle according to claim 12, characterized in that, The fastening portion is formed as a through hole, and the handle further includes: At least one retaining rib is provided on the non-visual surface of the first plate, the retaining rib is provided adjacent to the through hole, and the retaining rib is opposite to the through hole.

14. The handle according to claim 13, characterized in that, The retaining rib extends in a wavy shape along the first direction.

15. The handle according to claim 14, characterized in that, The retaining rib has crests and troughs, the distance between the crests and troughs in the first direction is L, and the distance between the crests and troughs in the second direction is H, where 1.5 ≤ L / H ≤ 5.

16. The handle according to claim 12, characterized in that, The connecting plate also includes a third plate, one end of which is connected to the end of the second plate away from the first plate, and the non-exterior surface of the third plate is provided with a second gate forming area suitable for corresponding to the second gate of the handle mold.

17. The handle according to claim 1, characterized in that, Also includes: A limiting structure is provided on the non-exterior surface of the connecting plate. The limiting structure includes a third body part and a third connecting part. The third connecting part is connected between the third body part and the connecting plate. The thickness of the third connecting part is in the range of 2△h~3△h, where △h is the thickness of the solidified layer formed by the melt contacting the cavity of the handle mold during the injection molding process.

18. The handle according to any one of claims 1-17, characterized in that, The handle is made of a paint-free material.

19. A garment processing device, characterized in that, Includes the handle according to any one of claims 1-18.

20. A handle mold for forming handles, characterized in that, The handle is the handle according to any one of claims 1-18, and the handle mold comprises: The handle mold core has a cavity, which includes a first cavity and a second cavity. The first cavity has a first wall and a second wall. The first wall is used to form the outer surface of the connecting plate, and the second wall is used to form the non-outer surface of the connecting plate. A first gate is provided at the corner of the second wall.

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