Workbench, laundry treatment device and workbench mold

By setting up gate forming zones and connections in the workbench molds and controlling the melt flow path, the problem of flow mark defects during the workbench injection molding process is solved, the appearance quality and pass rate are improved, and the production cost is reduced.

WO2025138791A1PCT designated stage expired Publication Date: 2025-07-03WUXI LITTLE SWAN ELECTRIC CO LTD
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Patent Information

Application Number
PCT/CN2024/108899
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-12-29
Filing Date
2024-07-31
Publication Date
2025-07-03

AI Technical Summary

Technical Problem

The existing workbench is prone to flow defects during injection molding, which affects the appearance quality, resulting in low pass rate and high production costs.

Method used

A workbench mold is designed to control the melt flow path by setting multiple gate forming areas and connections on the non-external surface, including rib plates and rib sheets, to ensure that the melt fills the cavity quickly and reduces the reflux, reducing the chance of flow marks.

Benefits of technology

It improves the appearance quality of the workbench, increases the pass rate, reduces production costs, and improves structural strength and assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A workbench (1), a laundry treatment device and a workbench mold. An appearance surface (1a) is provided at one side of the workbench (1) along the thickness direction, a non-appearance surface (1b) is provided at the other side of the workbench (1) along the thickness direction, and the non-appearance surface (1b) of the workbench is provided with a plurality of gate forming areas corresponding to gates on a workbench mold; the workbench (1) comprises at least one connecting portion (14), the connecting portion (14) is provided on the non-appearance surface (1b) of the workbench (1), the connecting portion (14) comprises a rib plate (141) and a rib piece (142) connected to the rib plate (141), the rib piece (142) is provided on the front side of the rib plate (141), and at least one gate forming area is provided on the front side of the rib piece (142). By means of the provision of the rib piece (142) and the rib plate (141), the structural strength and rigidity of the workbench (1) can be improved, the overall structural performance of the workbench (1) is enhanced, and the size of the rib piece (142) can be small, so as to shorten the length of a weld line, thereby reducing flow marks.
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Description

Workbench, clothing processing equipment and workbench mold

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311869078.2 and application date of December 29, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of injection molding technology, and in particular to a workbench, clothing processing equipment, and a workbench mold. Background Art

[0004] Taking the application of a workbench in clothing processing equipment as an example, in the related art, flow mark defects are prone to appear on the exterior surface of the workbench after injection molding. When the flow mark defects are more obvious, they will affect the appearance of the product. Therefore, the pass rate of the workbench is low, the scrap rate is high, and the manufacturing cost is high.

[0005] Summary of the Invention

[0006] In view of this, the embodiments of the present application hope to provide a workbench, a clothing processing device and a workbench mold to reduce flow mark defects on the exterior surface of the workbench and improve the pass rate of the workbench.

[0007] An embodiment of the present application provides a workbench for use in a clothing processing device, wherein the workbench is an integral injection-molded part having a clothing loading port, an exterior surface on one side of the workbench along the thickness direction, and a non-exterior surface on the other side of the workbench along the thickness direction, wherein the non-exterior surface of the workbench is provided with a plurality of gate molding areas corresponding to gates on a workbench mold;

[0008] The workbench includes at least one connecting portion, which is arranged on the non-exterior surface of the workbench. The connecting portion includes a rib plate and a rib sheet connected to the rib plate. The rib sheet is arranged on the front side of the rib plate, and at least one gate molding area is arranged on the front side of the rib sheet.

[0009] In some embodiments, in a plane projection perpendicular to the height direction of the workbench, from the front side to the back side, the line connecting the centers of each of the gate molding areas is a first trajectory line, and the number of the connecting parts is multiple, and the multiple connecting parts are arranged at intervals along the first trajectory line.

[0010] In some embodiments, in a plane projection perpendicular to the height direction of the workbench, located on the same side of the clothing delivery port along the left-right direction, a plurality of the gate molding areas are arranged in sequence from the front to the back of the workbench, the rib plate is perpendicular to the front-to-back direction of the workbench, the rib sheet is parallel to the front-to-back direction of the workbench, and the rib sheet and the rib plate are perpendicular to each other.

[0011] In some embodiments, the connecting portion includes a connecting structure for mounting parts of the laundry processing device.

[0012] In some embodiments, the thickness of the connecting structure is greater than the thickness of the rib.

[0013] In some embodiments, the thickness of the connection structure is 2.5 mm to 3.5 mm; and / or the thickness of the rib is 0.1 to 1.5 mm.

[0014] In some embodiments, the workbench comprises:

[0015] an annular ring plate defining the clothing loading port, wherein the exterior surface of the annular ring plate faces the center of the clothing loading port, and the bottom end of the annular ring plate extends toward the center of the clothing loading port, the plurality of gate forming areas including a first gate forming area, the first gate forming area being disposed on a front side of the non-exterior surface of the annular ring plate;

[0016] a top plate connected to the top end of the annular ring plate;

[0017] Side panels, the side panels being bent downward from side edges of the top panel along left and right directions;

[0018] At least one of the connecting portions is provided in the non-exterior surface of the side plate and the non-exterior surface of the annular ring plate, and the rib plate continuously extends from the non-exterior surface of the annular ring plate to the non-exterior surface of the side plate.

[0019] In some embodiments, the plurality of gate molding areas include a second gate molding area, which is arranged on the non-exterior surface of the annular ring plate and at the position of the annular ring plate for connection with the top plate, and the first gate molding area and the second gate molding area are arranged adjacent to each other.

[0020] In some embodiments, the plurality of gate molding areas include a third gate molding area, wherein the third gate molding area is arranged on the non-exterior surface of the side plate and at a portion of the side plate for connection with the top plate, and the third gate molding area is arranged adjacent to the second gate molding area.

[0021] In some embodiments, the plurality of gate molding areas include a fourth gate molding area, which is arranged on the non-exterior surface of the top plate and at a portion of the top plate for connection with the side plate, and the fourth gate molding area is arranged adjacent to the third gate molding area.

[0022] In some embodiments, the annular ring plate is a mirror-symmetrical structure, the number of the first gate molding area is one and is located on the symmetry plane of the annular ring plate, the number of the second gate molding area, the third gate molding area, and the fourth gate molding area are two respectively, and are symmetrically arranged about the symmetry plane of the annular ring plate.

[0023] An embodiment of the present application provides a clothing processing device, comprising the workbench described in any embodiment of the present application.

[0024] An embodiment of the present application provides a workbench mold for molding the workbench described in any embodiment of the present application, the workbench mold comprising a workbench mold core having a workbench cavity, the workbench cavity having a columnar body for molding the clothing loading port, a first sidewall surface of the workbench cavity along the thickness direction being used to mold the exterior surface of the workbench, a second sidewall surface of the workbench cavity along the thickness direction being used to mold the non-exterior surface of the workbench, and a plurality of gates being provided on the second sidewall surface of the workbench cavity;

[0025] The workbench cavity includes at least one connecting part cavity, which is arranged on the second side wall of the workbench cavity. The connecting part cavity includes a rib plate cavity and a rib sheet cavity connected to the rib plate cavity. The rib sheet cavity is arranged on the front side of the rib plate cavity, and at least one gate is arranged on the front side of the rib sheet cavity.

[0026] In some embodiments, in a plane projection perpendicular to the height direction of the workbench cavity, the line connecting the centers of each of the gates from the front side to the back side is a second trajectory line, the number of the connecting part cavities is multiple, and the multiple connecting part cavities are arranged at intervals along the second trajectory line.

[0027] In some embodiments, in the plane projection perpendicular to the height direction of the workbench cavity, the multiple gates are located on the same side of the columnar body along the left-right direction, and are arranged in sequence from the front to the back of the workbench cavity. The rib plate cavity is perpendicular to the front-to-back direction of the workbench cavity, the rib sheet cavity is parallel to the front-to-back direction of the workbench cavity, and the rib sheet cavity and the rib plate cavity are perpendicular to each other.

[0028] The workbench provided in the embodiments of the present application has multiple gate forming areas on its non-exterior surface, allowing the melt to quickly fill the workbench cavity. The gate forming areas are formed on the non-exterior surface, without affecting the workbench's appearance. Furthermore, multiple gates can be opened sequentially to ensure unidirectional melt flow, forming a continuous leading flow front and reducing the likelihood of an unstable flow field. The provision of ribs and rib plates can enhance the structural strength and rigidity of the workbench, strengthening its overall structural performance. Furthermore, the ribs can be smaller in size to shorten the weld line, thereby reducing flow marks. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic diagram of the flow of melt in an exterior mold cavity and a rib position mold cavity extending substantially along the melt flow direction in the related art. The curved arrows schematically illustrate the flow direction of the melt backflow in the rib position mold cavity, and the straight arrows schematically illustrate the flow direction of the melt in the exterior mold cavity.

[0030] FIG2 is a schematic structural diagram of a workbench according to an embodiment of the present application;

[0031] FIG3 is a schematic structural diagram of a workbench according to an embodiment of the present application from another perspective;

[0032] FIG4 is an enlarged schematic diagram of point A in FIG3 ;

[0033] FIG5 is an enlarged schematic diagram of point B in FIG3 ;

[0034] FIG6 is an enlarged schematic diagram of point C in FIG3 ;

[0035] FIG7 is an enlarged schematic diagram of point D in FIG3 ;

[0036] FIG8 is a structural schematic diagram of a workbench according to an embodiment of the present application from another perspective. DETAILED DESCRIPTION

[0037] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed description in the specific implementation methods should be understood as an explanation of this application and should not be regarded as an improper restriction on this application.

[0038] The various specific technical features described in the specific embodiments may be combined in any suitable manner, unless they are inconsistent. For example, different embodiments and technical solutions may be formed by combining different specific technical features. To avoid unnecessary repetition, the various possible combinations of the specific technical features in the present invention will not be described separately.

[0039] In the following description, the terms "first, second, ..." are used solely to distinguish different objects and do not imply any similarities or connections between the objects. It should be understood that the directional descriptions "above," "below," "top," and "bottom" refer to directions during normal use. The directions "left" and "right" refer to the left-right directions shown in the corresponding schematic diagrams, which may or may not be the left-right directions during normal use.

[0040] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. "A plurality" means greater than or equal to two.

[0041] In order to improve the visual appearance of the product, the appearance of some plastic parts of the product usually needs to have a gorgeous metallic appearance effect. In order to enable the plastic parts to have a gorgeous metallic appearance effect, in the relevant technology, the manufacturing process of plastic parts is mostly an injection molding + spraying process, that is, metal powder is sprayed on the outer surface of the injection-molded injection-molded blank. The plastic parts after spraying have a gorgeous metallic appearance effect. However, the spraying process has disadvantages such as high pollution, high cost, low pass rate and cannot be recycled after scrapping.

[0042] In order to solve the shortcomings of the spraying process, spray-free thermoplastic engineering plastics came into being. The use of spray-free injection molding can give the product a metallic appearance effect, thereby eliminating the spraying process and avoiding the emission of pollutants during the spraying process. However, whether it is a spraying injection molding process or a spray-free injection molding process, flow marks are prone to occur. Taking the manufacture of a workbench using the spray-free injection molding process as an example, since the melt of the spray-free thermoplastic engineering plastic contains metal powder, during the injection molding process, the melt is likely to cause uneven distribution of metal powder during the flow of the melt in the workbench cavity, and some parts are darker in color, visually forming flow marks, causing the workbench to have flow mark defects, making the appearance quality of the spray-free workbench unable to meet the product appearance requirements, resulting in low workbench yield, material waste, and high production costs. Therefore, it is difficult for existing workbenches with high-quality appearance requirements to adopt the spray-free injection molding process.

[0043] Please refer to FIG. 2 to FIG. 8 , an embodiment of the present application provides a workbench 1 .

[0044] The application scenario of the workbench 1 is not limited. In the embodiment of the present application, the application of the workbench 1 to a clothing processing device is described as an example.

[0045] An embodiment of the present application provides a clothing processing device, comprising the workbench 1 of any embodiment of the present application.

[0046] The specific type of clothing processing equipment is not limited, and can be a pulsator washing machine, a washer-dryer, etc., and is not limited here.

[0047] The workbench 1 is an integral injection-molded part.

[0048] That is to say, the workbench 1 is integrally formed by injection molding. The integral workbench 1 is convenient to form and simple to manufacture, does not require redundant assembly parts and connection processes, and is easy to assemble with other structures of the clothing processing equipment, thereby improving the assembly efficiency of the clothing processing equipment.

[0049] For example, the workbench 1 can be a spray-free, one-piece injection-molded part. For example, the workbench 1 of the present embodiment can be formed by injection molding a melt composed of a matrix containing metal powder. That is, the material of the workbench 1 includes the matrix and the metal powder distributed within the matrix. The workbench 1 formed using the metal powder-containing matrix has a metallic appearance and does not require additional metal coating. In other words, the workbench 1 is a spray-free plastic part.

[0050] For ease of description, the following description will be made by taking as an example the process of injecting a melt composed of a matrix containing metal powder through a workbench mold to form the workbench 1 .

[0051] The type of metal powder is not limited. For example, the metal powder includes but is not limited to copper, silver and / or aluminum, etc.

[0052] It should be noted that metal powder refers to metal in the form of particles. In this application, there is no limitation on the particle size.

[0053] The type of the matrix is ​​not limited. For example, the matrix includes but is not limited to resin and the like.

[0054] 2 and 3 , the workbench 1 has a clothes-introducing port 1 c . Specifically, clothes can be put into or taken out of the clothes-processing device through the clothes-introducing port 1 c .

[0055] Exemplarily, the clothing processing equipment includes a box body and a drum assembly, the workbench 1 is arranged at the top of the box body, the drum assembly has a clothing processing chamber, and the top side of the drum assembly has an opening. The clothes to be washed can be placed into the clothing processing chamber from the top side through the clothing loading port 1c and the opening, and the washed clothes can also be taken out from the clothing processing chamber through the opening and the clothing loading port 1c.

[0056] To facilitate the description of the workbench 1 of the embodiment of the present application, the embodiment of the present application further provides a workbench mold for forming the workbench 1 of any embodiment of the present application. The workbench mold includes a workbench mold core having a workbench cavity, and the workbench cavity has a columnar body for forming the clothing inlet 1c.

[0057] 2 and 3 , the workbench 1 has an exterior surface 1 a on one side along the thickness direction, and a non-exterior surface 1 b on the other side along the thickness direction.

[0058] Correspondingly, in the workbench mold, the first side wall surface of the workbench cavity along the thickness direction is used to form the appearance surface 1a of the workbench 1, and the second side wall surface of the workbench cavity along the thickness direction is used to form the non-appearance surface 1b of the workbench 1.

[0059] It should be noted that the exterior surface 1a is exposed on the outside of the clothing processing device, while the non-exterior surface 1b is not. During normal use of the clothing processing device, the user cannot see the non-exterior surface 1b, but can see the exterior surface 1a. Therefore, the glossiness of the exterior surface 1a of the workbench 1 is required to be higher, while the glossiness of the non-exterior surface 1b is required to be lower.

[0060] It should be noted that the dimensions of the three directions of different components in the same absolute coordinate system are different. Generally, the length, width and thickness of an object are determined according to the dimensions of the object extending in the three directions. Length>width>thickness. Therefore, the length, width and thickness of different corresponding components may be different. Therefore, the following description will indicate which component's length, width or thickness is being used.

[0061] Specifically, in the embodiments of the present application, the description is made by taking the example that the length direction of the top plate 11 and the length direction of the side plate 12 are consistent with the front-to-back direction of the workbench 1, the description is made by taking the example that the width direction of the top plate 11 and the thickness direction of the side plate 12 are consistent with the left-right direction of the workbench 1, and the description is made by taking the example that the thickness direction of the top plate 11 and the width direction of the side plate 12 are consistent with the height direction or the top-bottom direction of the workbench 1.

[0062] It should be noted that the front-to-back direction, left-to-right direction, and the front-to-back direction, left-to-right direction of the workbench 1 and the workbench cavity are the same as the front-to-back direction, left-to-right direction, and the clothing processing equipment. The front side is the front side of the clothing processing equipment when the workbench 1 is installed on the clothing processing equipment.

[0063] 2 and 8 , the non-exterior surface 1 b of the workbench 1 is provided with a plurality of gate forming areas corresponding to the gates on the workbench mold.

[0064] Correspondingly, in the workbench mold, a plurality of gates are provided on the second side wall surface of the workbench cavity.

[0065] Specifically, during injection molding, the melt enters the gate cavity through the gate, and enters the workbench cavity from the gate cavity, filling the workbench cavity. After molding and cooling, the mold is opened to obtain the workbench 1.

[0066] It is understood that after the workbench 1 is ejected from the workbench mold, a portion of the melt at the gate will remain on the workbench 1 and form a gate forming area. The gate forming area can be formed by removing or partially removing the melt remaining at the gate, or by leaving the melt remaining at the gate untreated, without limitation.

[0067] In this embodiment, the gate is arranged on the second side wall surface of the workbench cavity, and the gate molding area is formed on the non-appearance surface 1b of the workbench 1. That is, during the use of the clothing processing equipment, the user cannot see the gate molding area, which is convenient for ensuring the appearance performance of the workbench 1.

[0068] It can be understood that there can be two or more gate molding areas, and the gate molding areas are arranged in a one-to-one correspondence with the gates on the workbench mold.

[0069] For example, multiple gates are opened sequentially at pre-set intervals, rather than simultaneously. This means they inject the material sequentially. This prevents a single gate from rapidly filling the mold cavity. Furthermore, opening multiple gates sequentially at pre-set intervals ensures unidirectional melt flow, forming a continuous leading flow front and reducing the likelihood of an unstable flow field.

[0070] It should be noted that the specific duration of the preset time interval can be set according to actual production needs and is not limited in this application.

[0071] In the embodiment of the present application, multiple gates are not opened at the same time, and the gate located on the front side is opened first and the gate on the rear side is opened later as an example for explanation.

[0072] Please refer to Figures 3 and 8. The workbench 1 includes at least one connecting portion 14, which is arranged on the non-exterior surface 1b of the workbench 1. The connecting portion 14 includes a rib plate 141 and a rib sheet 142 connected to the rib plate 141. The rib sheet 142 is arranged on the front side of the rib plate 141, and at least one gate molding area is provided on the front side of the rib sheet 142.

[0073] Correspondingly, in the workbench mold, the workbench cavity includes at least one connecting part cavity, which is arranged on the second side wall of the workbench cavity. The connecting part cavity includes a rib plate cavity and a rib sheet cavity connected to the rib plate cavity. The rib sheet cavity is arranged on the front side of the rib plate cavity, and at least one gate is arranged on the front side of the rib sheet cavity.

[0074] The connecting portion 14 is arranged on the non-exterior surface 1b of the workbench 1. During the use of the clothing processing equipment, the user cannot see the connecting portion 14, which is convenient for increasing the appearance of the workbench 1. The connecting portion 14 can also increase the structural strength of the workbench 1, and at the same time, it can also facilitate the installation and coordination of the workbench 1 with other structures of the clothing processing equipment.

[0075] Specifically, the rib plate 141 is connected to the non-exterior surface 1b of the workbench 1, so as to increase the structural strength of the workbench 1. The rib sheet 142 is connected to both the non-exterior surface 1b of the workbench 1 and the rib plate 141. While improving the structural strength of the rib plate 141, it can increase the overall structural strength and rigidity of the workbench 1, thereby meeting the requirements for product strength and rigidity of the workbench 1.

[0076] It should be noted that the rib sheet 142 is generally in a sheet-like structure, the rib plate 141 is generally in a plate-like structure, and the volume of the rib plate 141 is greater than that of the rib sheet 142 .

[0077] It is understandable that at least one gate molding area is provided on the front side of the rib 142. Then, after the gate located on the front side of the rib cavity is opened, the melt first flows through the rib cavity and then flows through the rib plate cavity.

[0078] Of course, the rear side of the rib 142 may or may not be provided with a gate forming area, and this is not limited here. For example, the rear side of the rib 142 is provided with a gate forming area. During the injection molding process, the gate located at the front side of the rib cavity is opened first, and the gate at the rear side is opened later. The melt flows through the rib cavity first and then the rib plate cavity.

[0079] It is understandable that there can be multiple ribs 142, and multiple ribs 142 are spaced apart on the front side of the rib plate 141. During injection molding on the workbench 1, the melt can first flow through the rib cavity and then flow through the rib plate cavity.

[0080] In this embodiment, the gate molding area set on the front side of the rib 142, on the one hand, makes it convenient for the melt to quickly fill the rib cavity and the rib plate cavity at a suitable temperature to increase the molding reliability of the connection part 14; on the other hand, it allows the melt to flow through the rib cavity first and then through the rib plate cavity, which can also reduce flow marks.

[0081] The specific analysis of the causes of flow marks is as follows:

[0082] During the melt flow process, the hotter melt comes into contact with the cooler workbench mold, and the hotter melt quickly freezes on the wall of the workbench cavity, forming a thin solidified layer. The orientation of the metal powder in the solidified layer determines the appearance of the workbench 1. Stable metal powder flow can form a consistent metal powder orientation, resulting in a better appearance. During injection molding, the melt enters the appearance cavity through the gate on the front side of the rib cavity. When flowing through the rib cavity, the melt flow is divided into two directions. One part continues to flow in the appearance cavity along the original flow direction, and the other part enters the rib cavity and then the rib plate cavity. When the melt fills the rib cavity and the rib plate cavity, it will flow back into the appearance cavity. Specifically, if the size of the rib cavity in the flow direction of the melt is larger, the contact area between the rib cavity and the melt is larger, and the overall contact area between the melt and the rib cavity and the rib plate cavity is larger. The melt will not solidify immediately, and will flow back into the appearance cavity, destroying the solidification layer in the appearance cavity, and producing a longer weld line, thereby forming a flow mark.

[0083] It should be noted that the appearance cavity refers to the cavity used to form the appearance surface, the contact area refers to the area of ​​the intersection of the melt from one cavity to another, and the weld line refers to the trace produced at the fusion point when the two melts converge due to heat loss in the material head and the two melts are partially solidified before they are completely blended.

[0084] The principle of reducing flow marks in the embodiment of the present application is specifically described as follows:

[0085] The rib sheet 142 is connected to the rib plate 141. While providing strength support to the rib plate 141, the size of the rib sheet 142 can be smaller and can be distributed at intervals. Specifically, the length, width and thickness of the rib sheet 142 can be smaller. When the melt fills the rib sheet cavity and the rib plate cavity, it can also facilitate the melt to solidify quickly in the rib sheet cavity and not have time to flow back to the appearance cavity. The size of the rib sheet cavity in the flow direction of the melt can also be smaller, so the overall contact area between the melt and the rib sheet cavity and the rib plate cavity is smaller, thereby reducing the melt flowing back from the rib sheet cavity to the appearance cavity. When the melt passes through the rib sheet cavity and then enters the rib plate cavity, the gas and impurities entrained can also be less, shortening the length of the weld line, thereby reducing flow marks.

[0086] The workbench 1 provided in the embodiment of the present application has multiple gate forming areas on the non-exterior surface 1b of the workbench 1. The melt can quickly fill the workbench cavity. The gate forming areas are formed on the non-exterior surface 1b, which does not affect the appearance performance of the workbench 1. In addition, multiple gates can be opened sequentially to ensure unidirectional flow of the melt, forming a continuous leading flow front and reducing the probability of an unstable flow field. The provision of the ribs 142 and rib plates 141 can enhance the structural strength and rigidity of the workbench 1, strengthening the overall structural performance of the workbench 1. The ribs 142 can be smaller in size to shorten the length of the weld line, thereby reducing flow marks.

[0087] The connection portion 14 may be arranged in any manner.

[0088] In some embodiments, please refer to Figure 8. In the plane projection perpendicular to the height direction of the workbench 1, from the front side to the back side, the line connecting the centers of each gate molding area is the first trajectory line a, and the number of connecting parts 14 is multiple, and the multiple connecting parts 14 are arranged at intervals along the first trajectory line a.

[0089] Correspondingly, in the plane projection perpendicular to the height direction of the workbench cavity, the line connecting the centers of each gate from the front side to the back side is the second trajectory line, the number of connecting part cavities is multiple, and the multiple connecting part cavities are arranged at intervals along the second trajectory line.

[0090] It should be noted that the first trajectory line a and the second trajectory line are an abstract line, and the first trajectory line a is parallel to the second trajectory line.

[0091] That is to say, the connecting parts 14 are arranged at intervals along the setting direction of the gate molding area, so that the melt can quickly fill the connecting part cavity and form a stable flow field.

[0092] It should be noted that the connecting parts 14 are arranged at intervals along the first trajectory line a, that is, in the plane projection perpendicular to the height direction of the workbench 1, at least one gate molding area is arranged on the front side of all the connecting parts 14, and at least one gate molding area is arranged on the back side of all the connecting parts 14.

[0093] For example, from the front to the back, on the same side of the clothing inlet 1c in the left-right direction, the distances between any two adjacent connecting portions 14 are equal, so as to evenly increase the strength of the workbench 1.

[0094] For example, referring to Figures 3 and 8, in a plane projection perpendicular to the height direction of the workbench 1, a plurality of gate molding areas are sequentially arranged on the non-exterior surface 1b of the workbench 1 from the front to the rear side, located on the same side of the clothing loading port 1c in the left-right direction.

[0095] Correspondingly, in the workbench mold, in the plane projection perpendicular to the height direction of the workbench cavity, multiple gates are arranged in sequence on the second side wall of the workbench cavity from the front to the rear side on the same side of the columnar body along the left and right directions.

[0096] It should be noted that the multiple gate molding areas are sequentially arranged from front to back on the non-exterior surface 1b of the workbench 1 on the same side of the clothing inlet 1c in the left-right direction. This means that the gate molding areas on the left side of the clothing inlet 1c are sequentially arranged from front to back, and the gate molding areas on the right side of the clothing inlet 1c are sequentially arranged from front to back. Correspondingly, the gates on the left side of the columnar body are sequentially arranged from front to back, and the gates on the right side of the columnar body are sequentially arranged from front to back.

[0097] The arrangement of the ribs 141 and the rib pieces 142 is not limited.

[0098] In some embodiments, referring to FIG. 3 , FIG. 6 , and FIG. 7 , the rib plate 141 is perpendicular to the front-to-back direction of the workbench 1 , the rib piece 142 is parallel to the front-to-back direction of the workbench 1 , and the rib piece 142 and the rib plate 141 are perpendicular to each other.

[0099] It can be understood that in the projection perpendicular to the height direction of the workbench 1, multiple gate molding areas are arranged in sequence from the front to the back. For the workbench mold, the gate on the front side is opened first, and the melt flows from front to back in the workbench cavity, that is, the overall flow direction of the melt in the workbench cavity is roughly along the front and back direction of the workbench 1.

[0100] It can be understood that in the relevant technology, please refer to Figure 1. If during the injection molding process, the rib position cavity 2000 is parallel to the overall flow direction of the melt, for the rib position cavity 2000, its size in the melt flow direction is larger than its size in other directions. The melt continues to enter the rib position cavity 2000 and flow back to the appearance cavity 1000, causing frequent impacts on the appearance surface 1a, destroying the solidification layer and producing flow marks.

[0101] In this embodiment, when the melt flows through the rib sheet cavity, the rib sheet cavity is parallel to the overall flow direction of the melt, and the thickness of the rib sheet cavity can be smaller, which makes it easier for the melt to solidify quickly in the rib sheet cavity without having time to flow back. For the rib plate cavity, the rib plate cavity is perpendicular to the overall flow direction of the melt, and its size in the melt flow direction is smaller than that in other directions. The melt can flow quickly through the rib plate cavity and solidify in the rib plate cavity without having time to flow back to the appearance cavity. The melt flowing out of the rib sheet cavity can solidify faster when flowing through the rib plate cavity, reducing the chance of flowing back to the appearance cavity, thereby reducing flow marks.

[0102] In this embodiment, the arrangement positions of the ribs 142 and the rib plates 141, on the one hand, can increase the structural strength of the workbench 1 along the front-to-back direction, thereby meeting the overall strength and rigidity requirements of the product, and can also reduce the difficulty of manufacturing the workbench mold. On the other hand, the melt first flows through the ribs 142 and then through the rib plates 141, which can reduce the probability of the melt flowing back from the rib plate cavity to the appearance cavity and generating flow marks, thereby increasing the product qualification rate of the workbench 1.

[0103] Of course, in other embodiments, the rib plate 141 can also be tilted relative to the front and rear directions of the workbench 1, so that the melt flowing out of the rib sheet cavity can flow through the rib plate cavity more quickly, so that the melt can solidify quickly in the rib plate cavity and has no time to flow back to the appearance cavity.

[0104] It is understandable that the connection portion 14 not only enhances the strength and rigidity of the workbench 1 , but also serves to assist in installation.

[0105] For example, in some embodiments, referring to FIG. 6 , the connecting portion 14 includes a connecting structure 143 , and the connecting structure 143 is used to install parts of the clothes processing device.

[0106] Correspondingly, the connection portion cavity includes a connection structure cavity, and the connection structure cavity is used to form a connection structure 143 for mounting parts of the clothes processing device.

[0107] Specifically, parts of the clothing processing equipment are installed to the connecting structure 143. For example, the connecting structure 143 can be used to install the electrical wires of the clothing processing equipment. That is, the connecting part 14 not only has the function of increasing the structural strength of the workbench 1, but also can be used to install parts of the clothing processing equipment. There is no need to set up other additional mounting structures. The structure of the workbench 1 can be simpler, and the manufacturing difficulty of the workbench mold can also be reduced.

[0108] It is understandable that the connection structure 143 is not directly connected to the non-exterior surface 1 b of the workbench 1 , and the connection structure 143 may be connected to the non-exterior surface 1 b of the workbench 1 through the rib plate 141 .

[0109] In some embodiments, referring to FIG. 6 , a thickness H1 of the connection structure 143 is greater than a thickness H2 of the rib 141 , ie, H1 > H2 .

[0110] Correspondingly, in the workbench mold, the thickness of the connection structure cavity is greater than the thickness of the rib plate cavity.

[0111] It can be understood that when the melt is injected into the workbench mold, the melt contacts the cold wall of the connecting cavity and the temperature drops sharply, and a solidification layer is produced. The flow area of ​​the connecting cavity decreases with the increase of the thickness of the solidification layer. The fluidity of the melt is proportional to the cube of the thickness of the connecting cavity. Therefore, the greater the thickness of the connecting cavity, the smaller the flow resistance of the melt, the better the fluidity, and the faster the flow rate.

[0112] Specifically, during injection molding, when the melt flows through the gate in the appearance cavity and through the connection cavity, it first enters the rib sheet cavity and the rib plate cavity, and then enters the connection structure cavity from the rib plate cavity. If the melt in the connection structure cavity needs to flow back to the appearance cavity, it also needs to first flow through the rib plate cavity and then flow back to the appearance cavity. In this embodiment, the thickness of the rib plate 141 is less than the thickness of the connection structure 143. When the melt in the connection structure cavity flows back through the rib plate cavity, the flow resistance of the melt increases and the flow rate slows down due to the small thickness of the rib plate cavity. As a result, the melt flowing back from the connection structure cavity can be quickly solidified in the rib plate cavity, reducing the probability of the melt in the connection structure cavity flowing back to the appearance cavity through the rib plate cavity, thereby reducing flow marks.

[0113] In some embodiments, the thickness H1 of the connection structure 143 is 2.5 mm to 3.5 mm, that is, 2.5 mm ≤ H1 ≤ 3.5 mm, for example, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3.0 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, etc.

[0114] Correspondingly, in the workbench mold, the thickness of the connecting structure cavity is 2.5mm to 3.5mm, for example, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, etc.

[0115] The thickness of the connection structure 143 is set so that the connection structure 143 has sufficient strength to install parts of the clothing processing device.

[0116] The thickness H2 of the rib 141 is 0.1 mm to 1.5 mm, that is, 0.1 mm ≤ H2 ≤ 1.5 mm, for example, 0.1 mm, 0.3 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, etc.

[0117] Correspondingly, the thickness of the rib cavity is 0.1 mm to 1.5 mm, for example, 0.1 mm, 0.3 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, etc.

[0118] The thickness of the rib 141 is set so that the melt can fill the connection structure cavity while the melt flowing back from the connection structure cavity is quickly solidified in the rib cavity without flowing back into the appearance cavity, thereby reducing flow marks.

[0119] For example, in some examples, the thickness of the rib 142 is 0.1 mm to 1.5 mm, for example, 0.1 mm, 0.3 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, etc.

[0120] The specific structure of the workbench 1 is not limited.

[0121] In some embodiments, referring to FIG. 2 to FIG. 8 , the workbench 1 includes an annular ring plate 10 , a top plate 11 and side plates 12 .

[0122] The annular ring plate 10 defines a clothing loading port 1c, and the appearance surface of the annular ring plate 10 faces the center of the clothing loading port 1c, and the bottom end of the annular ring plate 10 extends toward the center of the clothing loading port 1c. The multiple gate molding areas include a first gate molding area 101, and the first gate molding area 101 is arranged on the front side of the non-appearance surface of the annular ring plate 10.

[0123] Correspondingly, the first gate is provided with a first gate cavity.

[0124] It can be understood that the annular ring plate 10 is substantially in the shape of a circular ring.

[0125] Correspondingly, in the workbench mold, the workbench cavity includes an annular ring plate cavity, which is connected to a columnar body for forming a clothing delivery port 1c. The first side wall surface of the annular ring plate cavity along the thickness direction is used to form the appearance surface of the annular ring plate 10, and is toward the center of the columnar body. The bottom end of the annular ring plate cavity extends toward the center of the columnar body. The second side wall surface of the annular ring plate cavity along the thickness direction is used to form the non-appearance surface of the annular ring plate 10. The multiple gates include a first gate, and the first gate is arranged on the front side of the second side wall surface of the annular ring plate cavity.

[0126] That is to say, during the molding process, the melt can directly enter the casting cavity from the first gate on the annular ring plate cavity, and be injected into the annular ring plate cavity through the gate cavity to form the annular ring plate 10. The gate molding area is formed on the non-appearance surface of the annular ring plate 10. The user cannot see the gate molding area, which is convenient for improving the appearance performance of the workbench 1.

[0127] The top plate 11 is connected to the top end of the annular ring plate 10 , and the side plates 12 are bent downward along the side edges in the left and right directions from the top plate 11 .

[0128] Correspondingly, in the workbench mold, the workbench cavity includes a top plate cavity and a side plate cavity. The top plate cavity is connected to the top end of the annular ring plate cavity, and the side plate cavity bends downward from the side edges of the top plate cavity along the left and right directions. The first side wall surface of the top plate cavity along the thickness direction is used to form the appearance surface of the side plate 12, and the second side wall surface along the thickness direction is used to form the non-appearance surface of the side plate 12. The first side wall surface of the side plate cavity along the thickness direction is used to form the appearance surface of the side plate 12, and the second side wall surface along the thickness direction is used to form the non-appearance surface of the side plate 12.

[0129] At least one connecting portion 14 is provided on the non-exterior surface of the side plate 12 and the non-exterior surface of the annular ring plate 10 , and the rib 141 continuously extends from the non-exterior surface of the annular ring plate 10 to the non-exterior surface of the side plate 12 .

[0130] Correspondingly, in the workbench mold, at least one connecting part cavity is arranged in the area of ​​the second side wall surface of the side plate cavity and the second side wall surface of the annular ring plate cavity, and the rib plate cavity extends from the second side wall surface of the annular ring plate cavity to the second side wall surface of the side plate cavity.

[0131] That is to say, the ribs 141 are connected to the non-exterior surfaces of the side panels 12 , the top panel 11 , and the annular ring panel 10 , so that the ribs 141 can provide strength support to the side panels 12 , the top panel 11 , and the annular ring panel 10 , thereby increasing the overall strength of the workbench 1 .

[0132] It can be understood that the annular ring plate 10 can be set with equal thickness, that is, the wall thickness of the annular ring plate 10 at any position is equal; on the one hand, it can ensure the structural strength of the annular ring plate 10, and enable the melt to quickly fill the annular ring plate cavity; on the other hand, it can also simplify the structure of the workbench mold.

[0133] Of course, the annular ring plate 10 can also be set with variable wall thickness. For example, the annular ring plate 10 has a constant thickness area and a variable thickness area. The constant thickness area extends along the circumferential direction of the annular ring plate 10, and the variable thickness area is the other area of ​​the annular ring plate 10 except the constant thickness area. The gate molding area of ​​the annular ring plate 10 is set in the constant thickness area, and the maximum thickness of the annular ring plate 10 in the variable thickness area is less than the thickness of the annular ring plate 10 in the constant thickness area.

[0134] It can be understood that when the melt is injected into the workbench mold, the melt contacts the cold wall of the annular ring plate cavity and the temperature drops sharply, and a solidification layer is produced. The flow area of ​​the annular ring plate cavity decreases with the increase of the thickness of the solidification layer. The fluidity of the melt is proportional to the cube of the thickness of the annular ring plate cavity. Therefore, the greater the thickness of the annular ring plate cavity, the smaller the flow resistance of the melt, the better the fluidity, and the faster the flow rate.

[0135] Therefore, during the melt flow process, the melt flows more easily and faster in the equal thickness area. The melt tends to be convex in the equal thickness area, and there is obvious front flow in the equal thickness area. The actual flow direction of the melt at each point on the front surface is along the outward direction perpendicular to the tangent of the front surface. Therefore, the flow direction of each point on the front surface is divergent and will not intersect, so that curling and flipping will not occur. This is beneficial to avoid curling and flipping of the melt in the equal thickness area and the melt in the variable thickness area at the front to a certain extent, further ensuring the stability of the melt material flow, thereby reducing the flow marks of the annular ring plate 10 at the corresponding positions of the equal thickness area and the variable thickness area, and increasing the qualified rate of the workbench 1.

[0136] Of course, the top plate 11 and the side plates 12 can be designed with equal thickness or with variable thickness. For specific instructions, please refer to the description of the annular ring plate 10 above, which will not be repeated here.

[0137] In some embodiments, referring to Figures 2 to 8, the plurality of gate molding areas include a second gate molding area 102, the second gate molding area 102 is arranged on the non-exterior surface of the annular ring plate 10, and is arranged at the portion of the annular ring plate 10 for connection with the top plate 11, and the first gate molding area 101 and the second gate molding area 102 are arranged adjacent to each other.

[0138] Correspondingly, in the workbench mold, the multiple gates include a second gate, which is arranged on the second side wall surface of the annular ring plate cavity and at the position of the annular ring plate cavity for connection with the top plate cavity. The first gate and the second gate are arranged adjacent to each other.

[0139] Correspondingly, the second gate is provided with a second gate cavity.

[0140] For example, in a plane perpendicular to the height direction of the workbench 1, the first gate molding area 101 can be located in front of the second gate molding area 102. In this way, during the injection molding process, the melt first enters the first gate cavity through the first gate, and then enters the annular ring plate cavity through the first gate cavity. A part of the melt flows in the annular ring plate cavity, and the other part of the melt flows to the top plate cavity through the connection between the annular ring plate cavity and the top plate cavity, and flows toward the second gate cavity at the rear. The melt flowing to the second gate cavity is located at the front, but the temperature and flow The moving speed gradually decreases. After the first gate is opened for a period of time, the second gate is opened, and the melt is injected into the annular ring plate cavity through the second gate cavity. Because the second gate cavity is close to the top plate cavity, the melt flowing into the top plate cavity through the connection between the annular ring plate cavity and the top plate cavity can have a higher temperature and a faster speed, and can quickly merge with the front melt flowing from the first gate to the top plate cavity, thereby forming a continuously leading flow front. In this way, the overall flow velocity and temperature of the melt in the top plate cavity are appropriate, which increases the flow stability of the melt and facilitates the melt to fill the top plate cavity.

[0141] In this embodiment, the first gate molding area 101 and the second gate molding area 102 are arranged adjacent to each other, which can facilitate the melt to quickly fill the annular ring plate cavity and the top plate cavity, and the overall flow rate and temperature of the melt in the top plate cavity are appropriate, thereby increasing the qualified rate of the workbench 1.

[0142] Exemplarily, there is one first gate molding area 101 and two second gate molding areas 102. In a plane projection perpendicular to the height direction of the workbench 1, the second gate molding areas 102 are located on opposite sides of the first gate molding area 101 along the circumferential direction.

[0143] It is understood that in the embodiment of the present application, the non-exterior surface of the annular ring plate 10 is substantially curved, and the non-exterior surface of the top plate 11 is substantially flat. In other words, the first gate molding area 101 and the second gate molding area 102 are both provided on a curved surface.

[0144] It is understandable that on a flat surface, if there is a slight color difference between the color of a certain place and the surrounding colors, it is easy to form a sharp contrast on the flat surface and it is easy to be captured by the naked eye. On a curved surface, the contrast is relatively low. Even if there is a slight color difference between the color of a certain place and the surrounding colors, it can form a visual blind spot and is more difficult to be captured by the naked eye.

[0145] In this embodiment, the portion of the annular ring plate 10 used to connect with the top plate 11 is a curved surface, that is, the second gate molding area 102 is formed on the curved surface. On the basis of forming the second gate molding area 102 on the non-exterior surface of the annular ring plate 10, the second gate molding area 102 is located on the curved surface, which is convenient for filling the front area of ​​the top plate cavity and can further form a visual blind spot, thereby reducing the chance of the second gate molding area 102 being captured by the user, thereby increasing the product qualification rate of the workbench 1.

[0146] Exemplarily, the portion of the annular ring plate 10 used for connecting with the top plate 11 has an arc-shaped transition, that is, the second forming area 102 is arranged in the arc-shaped area.

[0147] For example, in some embodiments, the first gate molding area 101 and the second gate molding area 102 are located on different circumferences with the center of the clothing loading port 1c as the center. In other words, the length of the line connecting the center of the circle and the center of the first gate molding area 101 is different from the length of the line connecting the center of the circle and the center of the second gate molding area 102. This facilitates uniform filling of all areas of the annular ring plate 10 by the melt.

[0148] Exemplarily, the first gate molding area 101 is disposed close to the bottom edge of the annular ring plate 10 . Thus, the distance between the center of the circle and the first gate molding area 101 is smaller than the distance between the center of the circle and the second gate molding area 102 .

[0149] That is to say, the first gate molding area 101 is arranged close to the bottom edge of the annular ring plate 10, and the second gate molding area 102 is arranged close to the top edge of the annular ring plate 10. While it is convenient for the melt to fill the annular ring plate cavity, it is also convenient to fill the top plate cavity. Moreover, the first gate molding area 101 and the second gate molding area 102 are arranged close to the edge of the annular ring plate 10, which can also better hide the gate molding area and improve the product qualification rate of the workbench 1.

[0150] The distance between the first gate molding area 101 and the bottom edge of the annular ring plate 10 is not limited.

[0151] Exemplarily, referring to FIG. 4 , the distance h between the first gate molding area 101 and the bottom edge of the annular ring plate 10 does not exceed half the height H of the annular ring plate 10 , ie, h≤1 / 2H.

[0152] In some embodiments, referring to Figures 3 to 8, the plurality of gate molding areas include a third gate molding area 121. The third gate molding area 121 is arranged on the non-exterior surface of the side panel 12 and is arranged at a portion of the side panel 12 for connection with the top panel 11. The third gate molding area 121 is arranged adjacent to the second gate molding area 102.

[0153] Correspondingly, in the workbench mold, the multiple gates include a third gate, which is arranged on the second side wall surface of the side plate cavity and at the position of the side plate cavity for connecting with the top plate cavity. The second gate and the third gate are arranged adjacent to each other.

[0154] Correspondingly, the third gate is provided with a third gate cavity.

[0155] Exemplarily, in a plane projection perpendicular to the height direction of the workbench 1 , the second gate molding area 102 is located in front of the third gate molding area 121 .

[0156] During the injection molding process, the melt first enters the second gate cavity through the second gate, and then enters the annular ring plate cavity through the second gate cavity. Part of the melt flows in the annular ring plate cavity, and the other part of the melt flows toward the top plate cavity and gradually approaches the side plate cavity. After the second gate is opened for a period of time, the third gate is opened, and the melt enters the side plate cavity through the third gate cavity. Part of the melt flowing out of the third gate cavity flows in the side plate cavity, and the other part of the melt flows toward the top plate cavity and can merge with the melt flowing out of the second gate cavity and gradually approaching the side plate cavity. The weld line formed by the merger can be hidden at the connection between the side plate cavity and the top plate cavity, thereby increasing the appearance reliability of the workbench.

[0157] It can be understood that if no gate is set on the side plate cavity, during the injection molding process, the melt flows into the annular ring plate cavity through the second gate cavity, then flows into the top plate cavity through the annular ring plate cavity, and finally flows into the side plate cavity through the top plate cavity. The temperature and flow rate of the melt will decrease, and the flow smoothness of the melt in the side plate cavity will be reduced. While it is not conducive to quickly filling the side plate cavity, it is also easy to produce an unstable flow field and produce flow marks. Moreover, for the side plate cavity, the melt entering the side plate cavity flows roughly along its length direction, and the side of the side plate cavity away from the top plate cavity in the width direction forms a parting surface, and the flow rate is relatively fast. At the same time, the side of the side plate cavity close to the top plate cavity in the width direction will also have a higher flow rate because it is close to the second gate. In this way, when the melt flows from the second gate to the side plate cavity, the flow rate of the melt in the central area of ​​the side plate cavity in the width direction is slower, which is manifested as a situation where the surface of the flow front of the melt is partially concave inward, that is, the flow direction of some points of the flow front is toward the inside of the melt. In this way, the flow front of the melt will continuously curl and flip inward, and the orientation of the metal powder becomes disordered, resulting in flow marks on the appearance surface of the workbench.

[0158] It should be noted that the parting surface is located at the boundary of the side plate cavity away from the top plate cavity. After the melt flows to the parting surface, under the boundary restriction of the parting surface, a large amount of melt flows roughly along the boundary, so that the melt has a higher flow rate at the parting surface.

[0159] Therefore, in this embodiment, the third gate molding area 121 is set on the side panel 12, so that the melt can enter the side panel cavity through the gate on the side panel cavity to quickly fill the side panel cavity. During the injection molding process, the flow rate of the melt in the central area of ​​the side panel cavity along the width direction is improved, and the melt can show a convex trend in the side panel cavity. In this way, the melt has an obvious front flow, and the flow front points of the melt face outward without curling or flipping, and the melt will not converge, ensuring that the appearance has a stable metal texture and increasing the appearance reliability of the workbench 1.

[0160] In some embodiments, referring to Figures 3 to 8, the plurality of gate molding areas include a fourth gate molding area 111, the fourth gate molding area 111 is arranged on the non-exterior surface of the top plate 11, and is arranged at a portion of the top plate 11 for connection with the side plate 12, and the fourth gate molding area 111 is arranged adjacent to the third gate molding area 121.

[0161] Correspondingly, in the workbench mold, the multiple gates include a fourth gate, which is arranged on the second side wall surface of the top plate cavity and at the position of the top plate cavity for connection with the side plate cavity. The fourth gate is arranged adjacent to the third gate.

[0162] It can be understood that the fourth gate is correspondingly provided with a fourth gate cavity.

[0163] Exemplarily, in a plane perpendicular to the height direction of the workbench 1 , the third gate molding area 121 is located in front of the fourth gate molding area 111 .

[0164] That is, the melt flowing in from the second gate substantially fills the front region of the top plate cavity, and the melt flowing in from the fourth gate substantially fills the rear region of the top plate cavity.

[0165] Specifically, during the injection molding process, the melt first enters the third gate cavity through the third gate, and then enters the side plate cavity through the third gate cavity. A part of the melt flows in the side plate cavity, and the other part of the melt flows through the connection between the side plate cavity and the top plate cavity to the rear area of ​​the top plate cavity, and flows toward the fourth gate cavity on the rear side. The melt flowing to the fourth gate cavity is at the forefront, but the temperature and flow rate gradually decrease. After the third gate is opened for a period of time, the fourth gate is opened, and the melt flows into the top plate cavity through the fourth gate cavity, and flows in the rear area of ​​the top plate cavity. The melt flowing out of the fourth gate cavity has a higher temperature and a faster speed, and can quickly merge with the melt flowing from the third gate to the top plate cavity, thereby forming a continuously leading flow front. In this way, the overall flow rate and temperature of the melt are appropriate, which increases the flow stability of the melt. Moreover, the weld line formed when the melt flowing from the fourth gate into the side plate cavity and the melt flowing from the third gate to the top plate cavity merge can also be hidden at the connection between the side plate cavity and the top plate cavity, thereby increasing the appearance reliability of the workbench 1.

[0166] In this embodiment, the third gate molding area 121 and the fourth gate molding area 111 are arranged adjacent to each other, which can facilitate the melt to quickly fill the side plate cavity and the top plate cavity, and the overall flow rate and temperature of the melt in the top plate cavity are appropriate, thereby increasing the qualified rate of the workbench 1.

[0167] In some embodiments, referring to FIG. 3 and FIG. 8 , a transition portion 13 is formed at the junction of the top plate 11 and the side plate 12 .

[0168] Correspondingly, in the workbench mold, a transition cavity is formed at the junction of the top plate cavity and the side plate cavity.

[0169] That is, the transition portion 13 has an intersecting area with both the top plate 11 and the side plate 12. The longitudinal direction of the transition portion 13 is the same as the longitudinal direction of the side plate 12 and the longitudinal direction of the top plate 11.

[0170] Please refer to FIG. 6 . The extending direction of the third gate molding area 121 is perpendicular to the length direction of the transition portion 13 .

[0171] Correspondingly, in the workbench mold, the extension direction of the third gate is perpendicular to the length direction of the transition cavity.

[0172] In this embodiment, the extension direction of the third gate molding area 121 is limited by the length direction of the transition portion 13. The third gate molding area 121 extends roughly along the width direction of the side panel 12 on the non-appearance surface of the side panel 12. In this way, the third gate also extends roughly along the width direction of the side panel 12, so that the melt flowing out of the third gate cavity has a larger flow area in the width direction of the side panel 12, so that the melt can fill the side panel cavity.

[0173] Please refer to FIG. 7 . The extending direction of the fourth gate molding area 111 is perpendicular to the length direction of the transition portion 13 .

[0174] Correspondingly, in the workbench mold, the extension direction of the fourth gate is perpendicular to the length direction of the transition cavity.

[0175] In this embodiment, the extension direction of the fourth gate molding area 111 is limited by the length direction of the transition portion 13. The fourth gate molding area 111 extends approximately along the width direction of the top plate 11 on the non-appearance surface of the top plate 11. In this way, the fourth gate also extends approximately along the width direction of the top plate 11, so that the melt flowing out of the fourth gate cavity has a larger flow area in the width direction of the top plate 11, so that the melt can fill the top plate cavity.

[0176] In some embodiments, the transition portion 13 forms a transition surface at the junction of the non-exterior surface of the top plate 11 and the non-exterior surface of the side plate 12 .

[0177] Correspondingly, in the workbench mold, the transition cavity forms a transition wall at the junction of the second side wall surface of the top plate cavity and the second side wall surface of the side plate cavity.

[0178] Please refer to Figure 6, the distance d1 between the third gate molding area 121 and the transition surface does not exceed 5mm, that is, d1≤5mm, for example, 5mm, 4.5mm, 4.2mm, 3.9mm, 3.6mm, 3mm, 2.5mm, 2mm, 1.8mm, 1.1mm, 0.8mm, 0.2mm, 0.1mm, etc.

[0179] Correspondingly, in the workbench mold, the distance between the third gate and the transition wall does not exceed 5 mm, for example, 5 mm, 4.5 mm, 4.2 mm, 3.9 mm, 3.6 mm, 3 mm, 2.5 mm, 2 mm, 1.8 mm, 1.1 mm, 0.8 mm, 0.2 mm, 0.1 mm, etc.

[0180] It can be understood that the distance between the third gate molding area 121 and the transition surface is the minimum distance between the third gate molding area 121 and the transition surface along the width direction of the side plate 12 .

[0181] In this embodiment, the third gate molding area 121 is arranged close to the transition surface, that is, the third gate molding area 121 is arranged close to the junction of the non-appearance surface 1b of the top plate 11 and the non-appearance surface of the side plate 12. In this way, when the workbench 1 is molded, when the melt flows through the third gate, on the one hand, the extension direction of the third gate is made to form a certain angle with the flow direction of the melt, thereby reducing flow marks. On the other hand, the third gate is arranged close to the transition surface, and the melt flowing from the second gate to the side plate cavity and the melt flowing from the third gate to the top plate cavity can also converge at the transition surface. In this way, the weld line formed by the convergence of the melt can be hidden at the transition surface, thereby increasing the appearance reliability of the workbench 1.

[0182] Please refer to Figure 7, the distance d2 between the fourth gate molding area 111 and the transition surface does not exceed 5mm, that is, d2≤5mm, for example, 5mm, 4.5mm, 4.2mm, 3.9mm, 3.6mm, 3mm, 2.5mm, 2mm, 1.8mm, 1.1mm, 0.8mm, 0.2mm, 0.1mm, etc.

[0183] Correspondingly, in the workbench mold, the distance between the fourth gate and the transition wall does not exceed 5 mm, for example, 5 mm, 4.5 mm, 4.2 mm, 3.9 mm, 3.6 mm, 3 mm, 2.5 mm, 2 mm, 1.8 mm, 1.1 mm, 0.8 mm, 0.2 mm, 0.1 mm, etc.

[0184] It can be understood that the distance between the fourth gate molding area 111 and the transition surface is the minimum distance between the fourth gate molding area 111 and the transition surface along the width direction of the top plate 11 .

[0185] In this embodiment, the fourth gate molding area 111 is arranged close to the transition surface, that is, the fourth gate molding area 111 is arranged close to the junction of the non-appearance surface of the top plate 11 and the non-appearance surface of the side plate 12. In this way, when the workbench 1 is molded, when the melt flows through the fourth gate, on the one hand, the extension direction of the fourth gate is made to form a certain angle with the flow direction of the melt, thereby reducing flow marks. On the other hand, the fourth gate is arranged close to the transition surface, and the melt flowing from the third gate to the top plate cavity and the melt flowing from the fourth gate to the side plate cavity can also converge at the transition surface. In this way, the weld line formed by the convergence of the melt can be hidden at the transition surface, thereby increasing the appearance reliability of the workbench 1.

[0186] In some embodiments, referring to Figures 2, 3 and 8, the annular ring plate 10 is a mirror-symmetrical structure, the number of the first gate molding area 101 is one and is located on the symmetry plane L of the annular ring plate 10, the number of the second gate molding area 111, the third gate molding area 121, and the fourth gate molding area 112 are two respectively, and are symmetrically arranged about the symmetry plane L of the annular ring plate 10.

[0187] Correspondingly, in the workbench mold, the number of the first gate is one, the number of the second gate, the third gate, and the fourth gate are two respectively, and they are symmetrically arranged with respect to the symmetry plane of the annular ring plate cavity.

[0188] It can be understood that the symmetry plane of the annular ring plate 10 is consistent with the symmetry plane of the annular ring plate cavity.

[0189] Specifically, during the molding process, the melt is injected into the annular ring plate cavity from the first gate and, with the first gate as the vertex, flows divergently along the circumference of the annular ring plate cavity. Part of the melt flows clockwise along the circumference of the annular ring plate cavity, while part of the melt moves counterclockwise along the circumference of the annular ring plate cavity. The two parts of the melt have the same flow rate and temperature and fill the annular ring plate cavity at approximately the same speed. This can also reduce the flow rate of filling the annular ring plate cavity and increase the molding reliability of the annular ring plate 10. In addition, after the second gate is opened, it can also quickly merge with the front formed by the melt flowing out of the first gate, forming a continuously leading flow front, so that the melt has a suitable temperature when filling the annular ring plate cavity and flows smoothly, reducing the probability of flow marks.

[0190] Moreover, during the injection molding process of the workbench 1, the melt can quickly and evenly fill the workbench cavity through the first gate, the second gate, the third gate, and the fourth gate. There are two second gates, two third gates, and two fourth gates respectively, and they are symmetrically arranged about the symmetry plane L of the annular ring plate 10, which can make the melt have a suitable flow rate and flow, and shorten the time to fill the workbench cavity.

[0191] For example, during the injection molding process of the workbench 1, the first gate, the second gate, the third gate, and the fourth gate are opened in sequence from the front side to the back side of the workbench 1, that is, the first gate is opened first, then the second gate, then the third gate, and finally the fourth gate.

[0192] The distance between two adjacent gates is not limited.

[0193] It can be understood that the distance between two adjacent gates can be the size of a line connecting the projections of the centers of the two adjacent gates in a plane projection perpendicular to the height direction of the workbench cavity.

[0194] For example, please refer to Figure 8. In the plane projection perpendicular to the height direction of the workbench 1, the size W1 of the line connecting the projections of the centers of any two adjacent gate molding areas is 150mm~250mm, that is, 150mm≤W1≤250mm, for example, 150mm, 158mm, 160mm, 165mm, 170mm, 180mm, 195mm, 200mm, 215mm, 230mm, 240mm, 250mm, etc.

[0195] Correspondingly, the size of the line connecting the projections of the centers of any two adjacent gates is 150 mm to 250 mm, for example, 150 mm, 158 mm, 160 mm, 165 mm, 170 mm, 180 mm, 195 mm, 200 mm, 215 mm, 230 mm, 240 mm, 250 mm, etc.

[0196] It should be noted that the size of the line connecting the projections of the centers of any two adjacent gate molding areas is the same as the size of the line connecting the projections of the centers of any two adjacent gates.

[0197] For example, the size of the line connecting the projections of the centers of the first gate molding area 101 and the second gate molding area 102 is 150 mm to 250 mm, the size of the line connecting the projections of the centers of the second gate molding area 111 and the third gate molding area 121 is 150 mm to 250 mm, and the size of the line connecting the projections of the centers of the third gate molding area 121 and the fourth gate molding area 111 is 150 mm to 250 mm.

[0198] Taking the example of opening the first and second gates in sequence, the hotter melt enters the workbench cavity through the first gate. During the flow, the melt contacts the cooler inner wall of the workbench cavity. As it moves away from the first gate, the temperature of the melt decreases and the flow rate slows, making it difficult to fill the entire workbench cavity. However, after the second gate is opened, the melt flowing out of the second gate cavity can increase the overall temperature of the melt in the workbench cavity, thereby making the overall flow rate of the melt more uniform and facilitating the rapid filling of the entire workbench cavity. If the distance between the first and second gates is far, the melt flowing out of the second gate cavity will not be able to effectively drive the melt flowing out of the first gate. If the distance between the first and second gates is close, the workbench 1 needs to be equipped with multiple gates. When the melt flows from the first gate to the second gate cavity, flow marks are easily generated, thereby reducing the pass rate of the workbench.

[0199] In this embodiment, the size of the line connecting the projections of the centers of any two adjacent gate molding areas is set so that the distance between any two adjacent gates will not be too large or too small. On the one hand, it is convenient to make the overall flow rate and temperature of the melt in the workbench cavity appropriate, so as to quickly fill the entire workbench cavity. On the other hand, the number of gate molding areas can also be relatively reasonable, thereby reducing flow marks.

[0200] In some embodiments, referring to Figures 6 and 7, the dimension D1 of the gate molding area along its extension direction is 2mm (Millimeter) to 20mm, that is, 2mm≤D1≤20mm, for example, 2mm, 4mm, 5mm, 6mm, 8mm, 11mm, 14mm, 15mm, 17mm, 19mm, 20mm.

[0201] The width D2 of the gate molding area is 0.6 mm to 2 mm, that is, 0.6 mm ≤ D2 ≤ 2 mm, for example, 0.6 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.7 mm, 1.9 mm, 2 mm, wherein the width direction intersects the extension direction.

[0202] It can be understood that the size of the gate along its extension direction is 2 mm to 20 mm, for example, 2 mm, 4 mm, 5 mm, 6 mm, 8 mm, 11 mm, 14 mm, 15 mm, 17 mm, 19 mm, and 20 mm.

[0203] The gate has a width of 0.6 mm to 2 mm, for example, 0.6 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.7 mm, 1.9 mm, and 2 mm, wherein the width direction intersects the extension direction.

[0204] It should be noted that the extension direction means that the size of the gate molding area or the gate in the extension direction is larger than the size in any other direction, and the width direction means that the size of the gate molding area or the gate in the width direction is smaller than the size in any other direction.

[0205] It can be understood that the width direction of the gate molding area can be perpendicular to the extension direction, so that the gate molding area is roughly rectangular in structure. Of course, the width direction of the gate molding area can also be an acute angle or an obtuse angle with the extension direction, which is not limited here.

[0206] In this embodiment, the size setting of the gate molding area can, on the one hand, make the corresponding gate and gate cavity have appropriate sizes, which is convenient for the melt to enter the workbench cavity through the gate and gate cavity; on the other hand, the size of the gate molding area along other directions can also be smaller, which is convenient for the melt to flow through quickly and reduce the flow marks on the appearance surface 1a of the workbench 1.

[0207] In the description of this application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine different embodiments or examples described in this application and features of different embodiments or examples without contradiction.

[0208] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A workbench for a laundry treatment device, wherein, The workbench is an integrally injection-molded part. The workbench has a clothing feeding opening. One side of the workbench in the thickness direction has an appearance surface, and the other side in the thickness direction has a non-appearance surface. A plurality of gate forming areas corresponding to the gates on the workbench mold are arranged on the non-appearance surface of the workbench; The workbench includes at least one connecting part. The connecting part is arranged on the non-appearance surface of the workbench. The connecting part includes a rib plate and a rib piece connected to the rib plate. The rib piece is arranged on the front side of the rib plate, and at least one of the gate forming areas is arranged on the front side of the rib piece.

2. The workbench according to claim 1, wherein, In the planar projection perpendicular to the height direction of the workbench, in the direction from the front side to the rear side, the connection line of the centers of the gate forming areas is the first track line. The number of the connecting parts is multiple, and the multiple connecting parts are arranged at intervals along the first track line.

3. The workbench according to claim 1, wherein, In the planar projection perpendicular to the height direction of the workbench, on the same side of the clothing feeding opening in the left-right direction, the multiple gate forming areas are arranged in sequence from the front side to the rear side of the workbench. The rib plate is perpendicular to the front-rear direction of the workbench, the rib piece is parallel to the front-rear direction of the workbench, and the rib piece is perpendicular to the rib plate.

4. The workbench according to any one of claims 1-3, wherein, The connecting part includes a connecting structure for installing parts of the clothing processing equipment.

5. The workbench according to claim 4, wherein, The thickness of the connecting structure is greater than the thickness of the rib plate.

6. The workbench according to claim 5, wherein, The thickness of the connecting structure is 2.5 mm to 3.5 mm; and / or, the thickness of the rib plate is 0.1 to 1.5 mm.

7. The workbench according to any one of claims 1-6, wherein, The workbench includes: An annular ring plate that defines the clothing feeding opening, and the appearance surface of the annular ring plate faces the center of the clothing feeding opening. The bottom end of the annular ring plate extends in the direction close to the center of the clothing feeding opening. The multiple gate forming areas include a first gate forming area, and the first gate forming area is arranged on the front side of the non-appearance surface of the annular ring plate; A top plate connected to the top end of the annular ring plate; A side plate that is bent downward from the side edge of the top plate in the left-right direction; At least one of the connecting parts is arranged in the area of the non-appearance surface of the side plate and the non-appearance surface of the annular ring plate, and the rib plate continuously extends from the non-appearance surface of the annular ring plate to the non-appearance surface of the side plate. The multiple gate forming areas include a second gate forming area, and the second gate forming area is arranged on the non-appearance surface of the annular ring plate and at the position where the annular ring plate is used to connect with the top plate. The first gate forming area and the second gate forming area are arranged adjacent to each other.

8. The workbench according to claim 7, wherein, The multiple gate forming areas include a third gate forming area, and the third gate forming area is arranged on the non-appearance surface of the side plate and at the position where the side plate is used to connect with the top plate. The third gate forming area is arranged adjacent to the second gate forming area.

9. The workbench according to claim 8, wherein, The multiple gate forming areas include a fourth gate forming area, and the fourth gate forming area is arranged on the non-appearance surface of the top plate and at the position where the top plate is used to connect with the side plate. The fourth gate forming area is arranged adjacent to the third gate forming area.

10. The workbench according to claim 9, wherein, ​ 11. The workbench according to claim 10, wherein, The annular ring plate has a mirror-symmetric structure. The number of the first gate forming areas is one and it is located on the symmetric plane of the annular ring plate. The numbers of the second gate forming areas, the third gate forming areas, and the fourth gate forming areas are each two, and they are symmetrically arranged with respect to the symmetric plane of the annular ring plate.

12. A laundry treatment device, wherein, It includes the workbench according to any one of claims 1-11.

13. A workbench mold for molding the workbench according to any one of claims 1-11, wherein, The workbench mold includes a workbench mold core. The workbench mold core has a workbench cavity. The workbench cavity has a columnar body for forming the clothing delivery opening. The first side wall surface of the workbench cavity in the thickness direction is used for forming the appearance surface of the workbench. The second side wall surface of the workbench cavity in the thickness direction is used for forming the non-appearance surface of the workbench. A plurality of gates are provided on the second side wall surface of the workbench cavity. The workbench cavity includes at least one connecting part cavity. The connecting part cavity is arranged on the second side wall surface of the workbench cavity. The connecting part cavity includes a rib plate cavity and a rib piece cavity connected to the rib plate cavity. The rib piece cavity is arranged on the front side of the rib plate cavity. At least one of the gates is provided on the front side of the rib piece cavity.

14. The workbench mold according to claim 13, wherein, In the plane projection perpendicular to the height direction of the workbench cavity, in the direction from the front side to the rear side, the connection line of the centers of the gates is the second locus line. The number of the connecting part cavities is multiple, and the multiple connecting part cavities are arranged at intervals along the second locus line.

15. The workbench mold according to claim 13, wherein, In the plane projection perpendicular to the height direction of the workbench cavity, on the same side of the columnar body in the left-right direction, the multiple gates are arranged in sequence from the front side to the rear side of the workbench cavity. The rib plate cavity is perpendicular to the front-rear direction of the workbench cavity. The rib piece cavity is parallel to the front-rear direction of the workbench cavity, and the rib piece cavity is perpendicular to the rib plate cavity.

Citation Information

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