Workbench, clothes processing equipment and workbench mold

Abstract

The embodiment of the invention provides a working table, clothes processing equipment and a working table mold, the working table is an integrated injection molding part, one side of the working table in the thickness direction is provided with an appearance surface, the other side of the working table in the thickness direction is provided with a non-appearance surface, and the non-appearance surface of the working table is provided with a plurality of sprue forming areas corresponding to sprues on the working table mold; in plane projection perpendicular to the height direction of the workbench, the connecting line of projections of the centers of every two adjacent sprue forming areas is a reference line, and the included angle between the extending direction of the projections of the sprue forming areas and the reference line ranges from 30 degrees to 150 degrees. According to the workbench provided by the embodiment of the invention, in the injection molding process, the overall flowing direction of the melt is not parallel to the extending direction of the sprue forming area, the probability that the melt flowing to the sprue cavity flows back and frequently impacts the appearance surface of the workbench can be reduced, the stability of a flowing field of the appearance surface of the workbench in the area where the sprue cavity is located is guaranteed, and the service life of the workbench is prolonged. Therefore, the flow mark on the appearance surface of the workbench is improved.

Description

Technical Field

[0001] The present application relates to the field of injection molding technology, and in particular, to a workbench, a laundry treatment device, and a workbench mold. Background Art

[0002] Taking the workbench applied to a laundry treatment device as an example, in the related art, after the workbench is injection molded, flow mark defects are likely to appear on the appearance surface. When the flow mark defects are obvious, the appearance of the product will be affected. Therefore, the qualified rate of the workbench is low, the scrap rate is high, and the manufacturing cost is high. Summary of the Invention

[0003] In view of this, embodiments of the present application are expected to provide a workbench, a laundry treatment device, and a workbench mold to reduce the flow mark defects on the appearance surface of the workbench and improve the qualified rate of the workbench.

[0004] Embodiments of the present application provide a workbench for a laundry treatment device. The workbench is an integrally injection molded part. The workbench has a laundry input 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. The non-appearance surface of the workbench has a plurality of gate forming areas corresponding to the gates on the workbench mold.

[0005] In the planar projection perpendicular to the height direction of the workbench, the connection line of the projections of the centers of two adjacent gate forming areas is a reference line, and the included angle between the extension direction of the projection of the gate forming area and the reference line is 30° to 150°.

[0006] In some embodiments, the included angle between the extension direction of the projection of the gate forming area and the reference line is 60° to 120°.

[0007] In some embodiments, the length of the gate forming area along its extension direction is 2 mm to 20 mm; and / or, the width of the gate forming area is 0.6 mm to 2 mm, where the width direction intersects the extension direction.

[0008] In some embodiments, in the planar projection perpendicular to the height direction of the workbench, the dimension of the connection line of the projections of the centers of any two adjacent gate forming areas is 150 mm to 250 mm.

[0009] In some embodiments, the workbench includes an annular ring plate. The annular ring plate defines the laundry input opening, and the appearance surface of the annular ring plate faces the center of the laundry input opening. The bottom end of the annular ring plate extends towards the center of the laundry input opening, and at least one gate forming area is arranged on the non-appearance surface of the annular ring plate.

[0010] In some embodiments, the annular ring plate has a mirror-symmetric structure. One of the gate forming areas on the annular ring plate is disposed on the symmetric plane of the annular ring plate, and the remaining gate forming areas on the annular ring plate are symmetrically arranged with respect to the symmetric plane of the annular ring plate.

[0011] In some embodiments, the workbench includes a top plate, the top plate is connected to the top end of the annular ring plate. The plurality of gate forming areas include a first gate forming area and a second gate forming area. The first gate forming area is disposed on the front side of the non-appearance surface of the annular ring plate, and the second gate forming area is disposed on the non-appearance surface of the annular ring plate and at a 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 adjacent to each other.

[0012] In some embodiments, the workbench includes side plates. The side plates are bent from the side edges of the top plate in the left-right direction towards the bottom side of the top plate. The plurality of gate forming areas include a third gate forming area. The third gate forming area is disposed on the non-appearance surface of the side plate and at a position where the side plate is used to connect with the top plate. The third gate forming area is adjacent to the second gate forming area.

[0013] In some embodiments, the plurality of gate forming areas include a fourth gate forming area. The fourth gate forming area is disposed on the non-appearance surface of the top plate and at a position where the top plate is used to connect with the side plate. The fourth gate forming area is adjacent to the third gate forming area.

[0014] In some embodiments, a transition connection portion is formed at the junction of the top plate and the side plates;

[0015] The extending direction of the third gate forming area is perpendicular to the length direction of the transition connection portion, and / or the extending direction of the fourth gate forming area is perpendicular to the length direction of the transition connection portion.

[0016] In some embodiments, the transition connection portion forms a transition surface at the junction of the non-appearance surface of the top plate and the non-appearance surface of the side plates;

[0017] The distance between the third gate forming area and the transition surface does not exceed 5 mm; the distance between the fourth gate forming area and the transition surface does not exceed 5 mm.

[0018] In some embodiments, the annular ring plate has a mirror-symmetric structure. The number of the first gate forming areas is one and 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 two respectively, and they are symmetrically arranged with respect to the symmetric plane of the annular ring plate.

[0019] An embodiment of the present application provides a laundry treatment device, including a workbench described in any embodiment of the present application.

[0020] 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 includes a workbench core, the workbench core has a workbench cavity, the workbench cavity has a columnar body for molding the laundry inlet, a first side wall surface of the workbench cavity in the thickness direction is used for molding the appearance surface of the workbench, and a second side wall surface of the workbench cavity in the thickness direction is used for molding the non - appearance surface of the workbench;

[0021] A plurality of gates are arranged on the second side wall surface of the workbench cavity;

[0022] In the planar projection perpendicular to the height direction of the workbench cavity, the included angle between the projection connection line of the centers of two adjacent gates and the extension direction of the projection of the gate is 30° - 150°.

[0023] In some embodiments, the included angle between the projection connection line of the centers of two adjacent gates and the extension direction of the projection of the gate is 60° - 120°.

[0024] For the workbench provided by the embodiment of the present application, during the injection molding process, when the melt flows from one gate to the adjacent gate cavity, the overall flow direction of the melt is not parallel to the extension direction of the gate molding area, which can reduce the probability that the melt flowing back to the gate cavity frequently impacts the appearance surface of the workbench, ensure the stability of the flow field in the area of the gate cavity of the appearance surface of the workbench, and thus improve the flow marks on the appearance surface of the workbench. The included angle between the extension direction of the gate molding area and the overall flow direction of the melt is between 30° and 150°. This angle range can effectively contain the melt flowing back to the gate cavity during the injection molding process and further improve the flow mark phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the flow of the melt in the appearance cavity and the gate cavity extending substantially along the melt flow direction in the related art. The curved arrow schematically shows the flow direction of the melt flowing back in the gate cavity, and the straight arrow schematically shows the flow direction of the melt in the appearance cavity;

[0026] Figure 2 A schematic structural diagram of the workbench according to an embodiment of the present application;

[0027] Figure 3 It is a schematic structural diagram of the workbench according to an embodiment of the present application from another perspective;

[0028] Figure 4 For Figure 3Enlarged schematic view of location A in [the figure];

[0029] Figure 5 is Figure 3 Enlarged schematic view of location B in [the figure];

[0030] Figure 6 is Figure 3 Enlarged schematic view of location C in [the figure];

[0031] Figure 7 is Figure 3 Enlarged schematic view of location D in [the figure];

[0032] Figure 8 is the structural schematic view of the workbench according to an embodiment of the present application from another perspective;

[0033] Figure 9 is Figure 8 Enlarged schematic view of location E in [the figure].

[0034] Explanation of reference numerals

[0035] 1000 - Appearance cavity; 2000 - Gate cavity;

[0036] 1 - Workbench; 1a - Appearance surface; 1b - Non - appearance surface; 1c - Clothing delivery opening;

[0037] 10 - Annular ring plate; 101 - First gate forming area; 102 - Second gate forming area; 11 - Top plate; 111 - Fourth gate forming area; 12 - Side plate; 121 - Third gate forming area; 13 - Transition connection part. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] In the various specific technical features described in the specific embodiments, without conflict, they can be combined in any suitable manner. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, various possible combination methods of the specific technical features in the present invention will not be described separately.

[0040] In the following description, the terms "first", "second", etc. only distinguish different objects and do not indicate any sameness or connection between the objects. It should be understood that the orientation descriptions such as "above", "below", "outside", and "inside" are all in the normal use state, and the "left" and "right" directions represent the left and right directions shown in the specific corresponding schematic diagram, which may or may not be the left and right directions in the normal use state.

[0041] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element. "Plurality" means greater than or equal to two.

[0042] 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 related art, the manufacturing process of plastic parts is mostly injection molding + spraying process, that is, metal powder is sprayed on the outer surface of the injection molded blank, and the sprayed plastic parts have a gorgeous metallic appearance effect. However, the spraying process has disadvantages such as high pollution, high cost, low qualification rate, and non-recyclability after scrapping.

[0043] To solve the deficiencies of the spraying process, spray-free thermoplastic engineering plastics have emerged. Using spray-free injection molding can give the product a metallic appearance effect, thus eliminating the spraying process and avoiding the emission of pollutants during spraying. However, whether it is the spraying injection molding process or the spray-free injection molding process, flow marks are likely to occur. Taking the workbench manufactured by 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 metal powder is likely to be unevenly distributed during the flow of the melt in the workbench cavity, and some parts are darker in color, forming flow marks visually, resulting in flow mark defects on the workbench, making the appearance quality of the spray-free workbench unable to meet the product appearance requirements, leading to a low finished product rate of the workbench, material waste, and high production costs. Therefore, it is very difficult for existing workbenches with high-quality appearance requirements to adopt the spray-free injection molding process.

[0044] Please refer to Figures 2 to 9 , an embodiment of the present application provides a workbench 1.

[0045] The application scenario of the workbench 1 is not limited. In the embodiment of the present application, the workbench 1 is described by taking its application in a clothing treatment device as an example.

[0046] An embodiment of the present application provides a clothing processing device, comprising the workbench 1 of any embodiment of the present application.

[0047] The specific type of clothing processing equipment is not limited, and it can be a pulsator washing machine, a washer-dryer, etc., and is not limited here.

[0048] The workbench 1 is an integral injection-molded part.

[0049] 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.

[0050] Exemplarily, the workbench 1 can be a spray-free one-piece injection molded part. For example, the workbench 1 of the embodiment of the present application is formed by injection molding a melt composed of a matrix containing metal powder. That is, the material of the workbench 1 includes a matrix and metal powder distributed in the matrix. The workbench 1 formed by the matrix containing metal powder has a metallic appearance and does not require additional spraying of a metal coating, that is, the workbench 1 is a spray-free plastic part.

[0051] For ease of description, the following description will take the example of forming the workbench 1 by injection molding a melt composed of a matrix containing metal powder through a workbench mold.

[0052] The type of metal powder is not limited. By way of example, the metal powder includes but is not limited to copper, silver and / or aluminum, etc.

[0053] It should be noted that metal powder refers to metal in the form of particles. The particle size is not limited in this application.

[0054] The type of the matrix is ​​not limited. By way of example, the matrix includes but is not limited to resin and the like.

[0055] The workbench 1 has a clothes-introducing port 1c. Specifically, clothes can be put into or taken out of the clothes-treating device through the clothes-introducing port 1c.

[0056] Exemplarily, the clothing processing device 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 put 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 of the clothing processing chamber through the opening and the clothing loading port 1c.

[0057] To facilitate the description of the workbench 1 of the embodiments of the present application, the embodiments of the present application further provide a workbench mold for forming the workbench 1 of any embodiment of the present application. The workbench mold includes a workbench mold core, the workbench mold core has a workbench cavity, and the workbench cavity has a columnar body for forming the clothing inlet 1c.

[0058] Please refer to Figure 1 and Figure 2 , one side of the workbench 1 in the thickness direction has an appearance surface 1a, and the other side in the thickness direction has a non-appearance surface 1b.

[0059] Correspondingly, in the workbench mold, the first side wall surface of the workbench cavity in 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 in the thickness direction is used to form the non-appearance surface 1b of the workbench 1.

[0060] It should be noted that the appearance surface 1a is exposed outside the clothing processing device, and the non-appearance surface 1b is not exposed outside the clothing processing device. During the normal use of the clothing processing device, the user cannot see the non-appearance surface 1b, but can see the appearance surface 1a. Therefore, the glossiness requirement for the appearance surface 1a of the workbench 1 is relatively high, and the glossiness requirement for the non-appearance surface 1b is relatively low.

[0061] Please refer to Figure 2 and Figure 8 , the non-appearance surface 1b of the workbench 1 has a plurality of gate forming areas corresponding to the gates on the workbench mold.

[0062] Correspondingly, in the workbench mold, a plurality of gates are provided on the second side wall surface of the workbench cavity.

[0063] Specifically, during injection molding, the melt enters the gate cavity through the gate, then enters the workbench cavity from the gate cavity, and fills the workbench cavity. After molding and cooling, the mold is opened to obtain the workbench 1.

[0064] It can be understood that after the workbench 1 is demolded from the workbench mold, a part 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 cutting or partially cutting the melt remaining at the gate, or can be formed without processing the melt remaining at the gate, which is not limited herein.

[0065] In this embodiment, the gate is provided on the second side wall surface of the workbench cavity, and the gate forming area is formed on the non-appearance surface 1b of the workbench 1. That is, during the use of the clothing processing device, the user cannot see the gate forming area, which is beneficial to the appearance performance of the workbench 1.

[0066] It can be understood that the plurality of gate forming areas can be two or more, and the gate forming areas are arranged in one-to-one correspondence with the gates on the workbench mold.

[0067] It should be noted that multiple gates on the workbench 1 can be opened simultaneously or not simultaneously. For example, multiple gates are opened sequentially at a preset time interval. That is to say, multiple gates do not inject glue simultaneously, but there is a sequence. On the one hand, using multiple gates can avoid the difficulty of quickly filling the cavity with a single gate. On the other hand, multiple gates being opened sequentially at a preset time interval can ensure the unidirectional flow of the melt, form a continuously leading flow front, and reduce the probability of an unstable flow field.

[0068] It should be noted that the specific duration of the preset time interval can be set according to actual production requirements, and this application does not limit it.

[0069] In the embodiment of this application, taking the case where multiple gates are not opened simultaneously as an example for illustration.

[0070] It should be noted that the dimensions of different components in three directions 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 three directions, with length > width > thickness. Therefore, the length, width, and thickness directions of corresponding different components may be different. Thus, in the following descriptions, it will be stated which component's length, width, or thickness is being referred to.

[0071] Specifically, in the embodiment of this application, taking the length direction of the top plate 11, the length direction of the side plate 12, and the front - rear direction of the workbench 1 as being the same as an example for description, the width direction of the top plate 11, the thickness direction of the side plate 12, and the left - right direction of the workbench 1 as being the same as an example for description, and the thickness direction of the top plate 11, the width direction of the side plate 12, and the height direction or the top - bottom direction of the workbench 1 as being the same as an example for description.

[0072] It should be noted that the front - rear direction, left - right direction, and height direction of the workbench 1, the front - rear direction and left - right direction of the workbench cavity are the same as the front - rear direction, left - right direction, and height direction of the laundry treatment device. The front side is the front side of the laundry treatment device when the workbench 1 is installed on the laundry treatment device.

[0073] In the embodiment of this application, taking the gate located at the front side being opened first and the gate located at the rear side being opened later as an example for illustration.

[0074] Please refer to Figure 8 and Figure 9, in the planar projection in the height direction perpendicular to the workbench 1, the connection line of the projections of the centers of two adjacent gate forming areas is the reference line e, and the included angle α between the extension direction of the projection of the gate forming area and the reference line e is 30° to 150°, that is, 30° ≤ α ≤ 150°. For example, 30°, 35°, 45°, 60°, 72°, 80°, 90°, 105°, 110°, 120°, 135°, 150°, etc.

[0075] Correspondingly, in the workbench mold, in the planar projection in the height direction perpendicular to the cavity of the workbench, the included angle between the connection line of the projections of the centers of two adjacent gates and the extension direction of the projection of the gate is 30° to 150°. For example, 30°, 35°, 45°, 60°, 72°, 80°, 90°, 105°, 110°, 120°, 135°, 150°, etc.

[0076] It can be understood that two adjacent gate forming areas correspond to two adjacent gates on the workbench mold, and the extension direction of the gate forming area is the same as that of the gate. The so-called extension direction means that the dimension of the gate forming area or the gate in the extension direction is larger than the dimension in any other direction.

[0077] It should be noted that the reference line e is an abstract line.

[0078] Specific analysis of the reasons for the flow marks is as follows:

[0079] Please refer to Figure 1 , during the flow process of the melt, the hotter melt contacts the colder workbench mold, and the hotter melt quickly freezes on the cavity wall surface of the workbench cavity to form a relatively thin solidified layer. The orientation of the metal powder in the solidified layer determines the quality of the appearance of the workbench. The steadily flowing metal powder can form a consistent orientation of the metal powder and obtain a better appearance. During injection molding, the melt enters the appearance cavity through one of the gates. When flowing through the gate cavity 2000 adjacent to this gate, the flow direction of the melt is divided into two parts. One part continues to flow in the appearance cavity 1000 along the original flow direction, and the other part flows into the gate cavity 2000. If the extension direction of the gate cavity 2000 is parallel to the overall flow direction of the melt, the melt continuously enters the gate cavity 2000, and the melt flowing into the gate cavity 2000 is likely to flow back to the appearance cavity 1000. In this way, the melt flowing back from the gate cavity 2000 to the appearance cavity 1000 causes frequent impacts on the appearance surface. Under the continuous flow of the subsequent melt, an unstable flow field is likely to form in the area of the appearance cavity 1000 where the gate cavity 2000 is located. Under the continuous action of the melt pressure, the solidified layer on the appearance surface of the workbench is damaged, resulting in the disorder of the orientation of the metal particles in the solidified layer of the appearance surface, which is manifested as flow marks on the appearance surface.

[0080] It should be noted that during the injection molding process, after the melt flows into the appearance cavity from one of the gates, it generally flows in a divergent manner. The overall flow direction of the melt from one gate to the adjacent gate cavity can be understood as the direction of the connection line of the projections passing through the centers of two adjacent gates in the plane projection perpendicular to the height direction of the workbench cavity, that is, the direction parallel to the reference line e. The extension direction of the gate is parallel to the overall flow direction of the melt, that is, the extension direction of the gate is parallel to the reference line e.

[0081] It can be understood that when the extension direction of the gate is parallel to the overall flow direction of the melt, the dimension of the gate cavity along the extension direction is relatively long, and the melt will continuously flow back from the gate cavity to the workbench cavity, causing frequent impacts on the appearance surface.

[0082] In this embodiment, the extension direction of the gate is set at an angle with the reference line e, that is, the extension direction of the gate cavity is set at an angle with the overall flow direction of the melt. In this way, when the melt flows through the gate cavity, the dimension of the gate cavity along the overall flow direction of the melt is smaller than the dimension along the extension direction.

[0083] The principle of reducing flow marks in the embodiment of the present application is specifically described as follows:

[0084] Since the extension direction of the gate cavity is not parallel to the overall flow direction of the melt, when the melt flows through the gate cavity, the dimension of the gate cavity along the overall flow direction of the melt is small, and the melt can flow through the gate cavity relatively quickly, reducing the probability of the melt flowing back from the gate cavity to the workbench cavity to a certain extent, thereby reducing the flow marks on the appearance surface 1a of the workbench 1.

[0085] For the workbench 1 provided in the embodiment of the present application, during the injection molding process, when the melt flows from one gate to the adjacent gate cavity, the overall flow direction of the melt is not parallel to the extension direction of the gate forming area, which can reduce the probability of the melt flowing back to the appearance surface 1a of the workbench 1 and frequently impacting it, ensuring the stability of the flow field in the area where the gate cavity is located on the appearance surface 1a of the workbench 1, thereby improving the flow marks on the appearance surface 1a of the workbench 1. The angle between the extension direction of the gate forming area and the overall flow direction of the melt is between 30° and 150°. This angle range can effectively prevent the melt flowing to the gate cavity from flowing back during the injection molding process, further improving the flow mark phenomenon.

[0086] In some embodiments, the angle between the extension direction of the projection of the gate forming area and the reference line is 60°

[0087]

[0088] Correspondingly, the angle between the connection line of the projections of the centers of two adjacent gates and the extension direction of the projection of the gate is 60° - 120°.

[0089] In this embodiment, the angle between the gate forming area or the gate and the overall flow direction of the melt is more reasonable, and the dimension of the gate cavity in the overall flow direction of the melt is smaller, which is convenient for the melt to flow through the gate cavity quickly, further reducing the probability that the melt flowing towards the gate cavity flows back to the workbench cavity and reducing flow marks.

[0090] In some embodiments, please refer to Figure 6 , the dimension D1 of the gate forming area along its extending direction is 2 mm (Millimeter) to 20 mm, that is, 2 mm ≤ D1 ≤ 20 mm. For example, 2 mm, 4 mm, 5 mm, 6 mm, 8 mm, 11 mm, 14 mm, 15 mm, 17 mm, 19 mm, 20 mm.

[0091] The width D2 of the gate forming 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. Among them, the width direction intersects with the extending direction.

[0092] It should be noted that the width direction of the described gate forming area means that the dimension of the gate forming area in the width direction is smaller than the dimension in any other direction.

[0093] It can be understood that the width direction of the gate forming area can be perpendicular to the extending direction. In this way, the gate forming area is generally in a rectangular structure. Of course, the width direction of the gate forming area can also form an acute angle or an obtuse angle with the extending direction, which is not limited here.

[0094] In this embodiment, the dimension setting of the gate forming area can, on the one hand, enable the corresponding gate and gate cavity to have appropriate dimensions, facilitating the melt to enter the workbench cavity through the gate and gate cavity. On the other hand, the dimensions of the gate forming area in other directions can also be smaller, facilitating the melt to flow through quickly and reducing the flow marks on the appearance surface 1a of the workbench 1.

[0095] Exemplarily, in some examples, the width direction of the gate forming area is perpendicular to the extending direction, and the included angle between the extending direction of the gate forming area and the reference line is 90°.

[0096] That is to say, the width direction of the gate forming area is parallel to the reference line, that is, the width direction of the gate forming area is parallel to the overall flow direction of the melt. When the melt flows from one gate through the adjacent gate cavity, it can flow along the width direction of the gate forming area. In this way, the melt can flow through the gate cavity more quickly, reducing the probability that the melt flows back from the gate cavity to the workbench cavity and frequently impacts the appearance surface 1a, thereby reducing the flow marks on the appearance surface 1a of the workbench 1.

[0097] Correspondingly, in the workbench mold, the dimension of the gate along its extending 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, 20 mm.

[0098] The width of the gate is 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, 2 mm. Among them, the width direction intersects with the extending direction.

[0099] In some embodiments, please refer to Figure 8 , in the planar projection perpendicular to the height direction of the workbench 1, the dimension W1 of the connection line of the projections of the centers of any two adjacent gate forming areas is 150 mm to 250 mm, that is, 150 mm ≤ W1 ≤ 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.

[0100] Correspondingly, in the workbench mold, in the planar projection perpendicular to the height direction of the workbench cavity, the dimension of the connection line of 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.

[0101] It should be noted that the dimension of the connection line of the projections of the centers of any two adjacent gate forming areas is the same as the dimension of the connection line of the projections of the centers of any two adjacent gates.

[0102] Taking the sequential opening of multiple gates as an example, the relatively hot melt enters the workbench cavity through one of the gates. During the flow process of the melt, it contacts the inner wall of the relatively cold workbench cavity. Along the direction away from this gate, the temperature of the melt becomes lower and lower and the flow rate is slower, which is not conducive to filling the entire workbench cavity. After opening the gate adjacent to this gate, the melt flowing out from the adjacent gate cavity can increase the overall temperature of the melt in the workbench cavity, so that the overall flow rate of the melt is relatively uniform and it is convenient to quickly fill the entire workbench cavity. If the distance between two adjacent gates is relatively far, the melt flowing out from the adjacent gate cavity is difficult to play a good driving role in the melt flowing out from the previous gate. If the distance between two adjacent gates is relatively close, the workbench 1 needs to be provided with multiple gates. When the melt flows from one gate to the adjacent gate cavity, flow marks are easily generated, thus reducing the qualification rate of the workbench 1.

[0103] It can be understood that the distance between two adjacent gates can be the dimension of the connecting line of the projections of the centers of two adjacent gates in the plane projection perpendicular to the height direction of the workbench cavity.

[0104] In this embodiment, the setting of the dimension of the connecting line of the projections of the centers of any two adjacent gate forming areas can ensure that the distance between any two adjacent gates is neither too large nor 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, facilitating the rapid filling of the entire workbench cavity. On the other hand, the number of gate forming areas can also be relatively reasonable, reducing flow marks.

[0105] The specific structure of the workbench 1 is not limited.

[0106] In some embodiments, please refer to Figure 2 、 Figure 3 and Figure 8 , the workbench 1 includes an annular ring plate 10. The annular ring plate 10 defines a clothing delivery opening 1c, and the outer surface of the annular ring plate 10 faces the center of the clothing delivery opening 1c. The bottom end of the annular ring plate 10 extends towards the center of the clothing delivery opening 1c, and at least one gate forming area is provided on the non-outer surface of the annular ring plate 10.

[0107] It can be understood that the annular ring plate 10 is generally in a circular ring structure.

[0108] Correspondingly, in the workbench mold, the workbench cavity includes an annular ring plate cavity. The annular ring plate cavity is connected to a columnar body for forming the clothing delivery opening 1c. The first side wall surface of the annular ring plate cavity in the thickness direction is used to form the outer surface of the annular ring plate 10 and faces the center of the columnar body. The bottom end of the annular ring plate cavity extends towards the center of the columnar body. The second side wall surface of the annular ring plate cavity in the thickness direction is used to form the non-outer surface of the annular ring plate 10, and at least one gate is provided on the second side wall surface of the annular ring plate cavity.

[0109] That is to say, during the molding process, the melt can directly enter the gate cavity from the gate on the annular ring plate cavity, and is injected into the annular ring plate cavity through the gate cavity to form the annular ring plate 10. The gate forming area is formed on the non-outer surface of the annular ring plate 10, and the user cannot see the gate forming area, which is convenient for improving the appearance performance of the workbench 1.

[0110] 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 is equal at any position. 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.

[0111] Of course, the annular ring plate 10 can also be provided with a variable wall thickness. Exemplarily, the annular ring plate 10 has an equal-thickness region and a variable-thickness region. The equal-thickness region extends along the circumferential direction of the annular ring plate 10, and the variable-thickness region is the other region of the annular ring plate 10 except the equal-thickness region. The gate forming area of the annular ring plate 10 is arranged in the equal-thickness region, and the maximum thickness of the annular ring plate 10 in the variable-thickness region is less than the thickness of the annular ring plate 10 in the equal-thickness region.

[0112] 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 solidified layer is generated. The flow area of the annular ring plate cavity decreases as the thickness of the solidified layer increases. The fluidity of the melt is proportional to the cube of the thickness of the annular ring plate cavity. Therefore, the larger the cavity thickness of the annular ring plate 10, the smaller the flow resistance of the melt, the better the fluidity, and the faster the flow rate.

[0113] Therefore, during the melt flow process, the melt is more likely to flow and has a faster flow rate in the equal-thickness region. The melt has a tendency to protrude forward in the equal-thickness region, and there is an obvious front flow in the equal-thickness region. The actual flow direction of each point on the front surface is along the direction perpendicular to the tangent of the front surface and outward. Therefore, the flow directions of each point on the front surface are divergent and will not converge, so that curling and flipping will not occur. This is beneficial to avoiding curling and flipping of the melt at the front between the melt in the equal-thickness region and the melt in the variable-thickness region to a certain extent, further ensuring the stability of the melt material flow, thereby reducing the flow marks at the corresponding positions of the annular ring plate 10 in the equal-thickness region and the variable-thickness region, and increasing the qualified rate of the workbench 1.

[0114] It can be understood that only one gate forming area can be provided on the annular ring plate 10, or multiple gate forming areas can be provided.

[0115] For example, in some embodiments, please refer to Figure 3 and Figure 8 , multiple gate forming areas are provided on the annular ring plate 10.

[0116] Exemplarily, please refer to Figure 3 and Figure 8 , the annular ring plate 10 is a mirror-symmetric structure. One of the gate forming areas on the annular ring plate 10 is arranged on the symmetry plane L of the annular ring plate 10, and the remaining gate forming areas on the annular ring plate 10 are symmetrically arranged with respect to the symmetry plane L of the annular ring plate 10.

[0117] Correspondingly, in the workbench mold, the annular ring plate cavity is a mirror-symmetric structure. One of the gates on the annular ring plate cavity is located on the symmetry plane of the annular ring plate cavity, and the remaining gates on the annular ring plate cavity are symmetrically arranged with respect to the symmetry plane of the annular ring plate cavity.

[0118] It can be understood that the symmetry plane of the annular ring plate 10 coincides with the symmetry plane of the annular ring plate cavity.

[0119] That is to say, at least three gate forming areas are arranged on the non-appearance surface of the annular ring plate 10. Correspondingly, at least three gates are arranged on the annular ring plate cavity.

[0120] Specifically, during the forming process, the gate located on the symmetry plane L can be opened first. The melt can be injected into the annular ring plate cavity from the gate located on the symmetry plane L first, and with the gate on the symmetry plane L as the vertex, it diverges and flows along the circumferential direction of the annular ring plate cavity. Part of the melt flows clockwise along the circumferential direction of the annular ring plate cavity, and part of the melt moves counterclockwise along the circumferential direction of the annular ring plate cavity. The flow rates of the two parts of the melt are the same, the temperatures are the same, and the annular ring plate cavity is filled at approximately the same speed. In this way, the flow rate of filling the annular ring plate cavity can also be reduced, and the forming reliability of the annular ring plate 10 can be increased. In addition, after other gates are opened, it can also quickly converge with the front formed by the melt flowing out of the gate on the symmetry plane L to form 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.

[0121] In this embodiment, the arrangement of the gate forming areas on the non-appearance surface of the annular ring plate 10, on the one hand, facilitates the melt to quickly fill the annular ring plate cavity, and the symmetrically arranged gate forming areas can also increase the uniformity of the melt flow in the annular ring plate cavity. Both sides of the symmetry plane L have a uniform flow front, reducing the probability of an unstable field, thereby reducing the probability of flow marks and increasing the appearance performance of the workbench 1.

[0122] In some embodiments, please refer to Figure 2 、 Figure 3 and Figure 8 , the workbench 1 includes a top plate 11. The top plate 11 is connected to the top end of the annular ring plate 10. The multiple gate forming areas include a first gate forming area 101 and a second gate forming area 102. The first gate forming area 101 is arranged on the front side of the non-appearance surface of the annular ring plate 10. The second gate forming area 102 is arranged on the non-appearance surface of the annular ring plate 10 and is arranged at the part of the annular ring plate 10 for connecting with the top plate 11. The first gate forming area 101 and the second gate forming area 102 are arranged adjacent to each other.

[0123] Correspondingly, on the workbench mold, the workbench cavity includes a top plate cavity. The first side wall surface of the top plate cavity in the thickness direction is used to form the appearance surface of the top plate 11, and the second side wall surface of the top plate cavity in the thickness direction is used to form the non-appearance surface of the top plate 11. The top plate cavity is connected to the top end of the annular ring plate cavity. The plurality of gates include a first gate and a second gate. The first gate is arranged on the front side of the second side wall surface of the annular ring plate cavity, and the second gate is arranged on the second side wall surface of the annular ring plate cavity and at the position where the annular ring plate cavity is used to connect with the top plate cavity. The first gate and the second gate are arranged adjacent to each other.

[0124] It can be understood that a first gate cavity is correspondingly arranged for the first gate, and a second gate cavity is correspondingly arranged for the second gate.

[0125] Exemplarily, in the planar projection perpendicular to the height direction of the workbench 1, the first gate forming area 101 can be located on the front side of the second gate forming area 102. Thus, during the injection molding process, the melt first enters the first gate cavity through the first gate, enters the annular ring plate cavity through the first gate cavity. A part of the melt flows in the annular ring plate cavity, and another part of the melt flows towards the top plate cavity through the connection between the annular ring plate cavity and the top plate cavity and flows towards the second gate cavity at the rear. The melt flowing towards the second gate cavity is at the front edge, but its temperature and flow rate gradually decrease. After the first gate is opened for a period of time, the second gate is opened. The melt is injected into the annular ring plate cavity through the second gate cavity. Since the second gate cavity is close to the top plate cavity, the temperature of the melt flowing into the top plate cavity through the connection between the annular ring plate cavity and the top plate cavity can be relatively high and the speed is also relatively fast, and it can quickly converge with the front-edge melt flowing from the first gate to the top plate cavity, thereby forming a continuously leading flow front. Thus, the overall flow rate and temperature of the melt in the top plate cavity are appropriate, increasing the flow stability of the melt and facilitating the filling of the top plate cavity by the melt.

[0126] In this embodiment, the first gate forming area 101 and the second gate forming 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, increasing the qualified rate of the workbench 1.

[0127] Exemplarily, the number of the first gate forming areas 101 is one, and the number of the second gate forming areas 102 is two. In the planar projection perpendicular to the height direction of the workbench, the second gate forming areas 102 are located on the opposite sides of the first gate forming area 101 along the circumferential direction.

[0128] It can be understood that in the embodiment of the present application, the non-appearance surface of the annular ring plate 10 is approximately curved, and the non-appearance surface of the top plate 11 is approximately flat. That is to say, both the first gate forming area 101 and the second gate forming area 102 are arranged on the curved surface.

[0129] It can be understood that on a plane, if there is a slight color difference between the color at a certain place and the colors around it, a distinct contrast is easily formed on the plane and can be easily captured by the naked eye. However, on a curved surface, the contrast is relatively low. Even if there is a slight color difference between the color at a certain place and the surrounding colors, a visual blind spot can be formed and it is relatively difficult to be captured by the naked eye.

[0130] In this embodiment, the part of the annular ring plate 10 for connecting with the top plate 11 is a curved surface. That is to say, the second gate forming area 102 is formed on the curved surface. On the basis of forming the second gate forming area 102 on the non-appearance surface of the annular ring plate 10, making the second gate forming area 102 located on the curved surface not only facilitates filling the front area of the top plate cavity, but also can further form a visual blind spot, reducing the probability of the second gate forming area 102 being captured by the user, thereby increasing the product qualification rate of the workbench 1.

[0131] Exemplarily, the part of the annular ring plate 10 for connecting with the top plate 11 has an arc transition. That is to say, the second forming area 102 is arranged in the arc area.

[0132] Exemplarily, in some embodiments, with the center of the clothing inlet 1c as the center of the circle, the first gate forming area 101 and the second gate forming area 102 are located on different circumferences. That is to say, the dimension of the line connecting the center of the circle and the center of the first gate forming area 101 is different from the dimension of the line connecting the center of the circle and the center of the second gate forming area 102. In this way, it is convenient for the melt to uniformly fill each area of the annular ring plate 10.

[0133] Exemplarily, the first gate forming area 101 is arranged close to the bottom edge of the annular ring plate 10. In this way, the distance between the center of the circle and the first gate forming area 101 is less than the distance between the center of the circle and the second gate forming area 102.

[0134] That is to say, the first gate forming area 101 is arranged close to the bottom edge of the annular ring plate 10, and the second gate forming area 102 is arranged close to the top edge of the annular ring plate 10. While facilitating the melt to fill the annular ring plate cavity, it is also convenient for filling the top plate cavity. Moreover, the first gate forming area 101 and the second gate forming area 102 are arranged close to the edge of the annular ring plate 10, which can also better hide the first gate forming area 101 and the second gate forming area 102, improving the product qualification rate of the workbench 1.

[0135] The distance between the first gate forming area 101 and the bottom edge of the annular ring plate 10 is not limited.

[0136] Exemplarily, the distance h between the first gate forming area 101 and the bottom edge of the annular ring plate 10 does not exceed half of the height H of the annular ring plate 10, that is, h ≤ 1 / 2H.

[0137] In some embodiments, please refer toFigure 1 , Figure 2 and Figure 8 , the workbench 1 includes side plates 12, the side plates 12 are bent from the side edges of the top plate 11 in the left - right direction towards the bottom side of the top plate 11. The plurality of gate forming areas include a third gate forming area 121. The third gate forming area 121 is arranged on the non - appearance surface of the side plate 12 and is arranged at the part of the side plate 12 for connecting with the top plate 11. The third gate forming area 121 is adjacent to the second gate forming area 102.

[0138] Correspondingly, in the workbench mold, the workbench cavity includes a side - plate cavity. The first side - wall surface of the side - plate cavity in the thickness direction is used to form the appearance surface of the side plate 12, and the second side - wall surface of the side - plate cavity in the thickness direction is used to form the non - appearance surface of the side plate 12. The side - plate cavity is bent from the side edges of the top - plate cavity in the left - right direction towards the bottom side of the top - plate cavity. The plurality of gates include a third gate. The third gate is arranged on the second side - wall surface of the side - plate cavity and is arranged at the part of the side - plate cavity for connecting with the top - plate cavity. The third gate is adjacent to the second gate.

[0139] It can be understood that a third gate cavity is correspondingly arranged for the third gate.

[0140] Exemplarily, in the plane projection perpendicular to the height direction of the workbench 1, the second gate forming area 102 is located in front of the third gate forming area 121.

[0141] During the injection molding process, the melt first enters the second gate cavity through the second gate, 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 towards 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. 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 towards the top - plate cavity and can converge with the melt gradually approaching the side - plate cavity flowing out of the second gate cavity. The weld line formed by the convergence can be hidden at the connection between the side - plate cavity and the top - plate cavity, thereby increasing the appearance reliability of the workbench.

[0142] It can be understood that if no gate is provided 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 into the top plate cavity through the annular ring plate cavity, and finally 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 decrease. This not only is not conducive to quickly filling the side plate cavity but also easily generates an unstable flow field and flow marks. Moreover, for the side plate cavity, the melt entering the side plate cavity generally flows along its length direction. The side of the side plate cavity away from the top plate cavity along 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 along the width direction will also have a relatively high flow rate due to being close to the second gate. Thus, when the melt flows from the second gate to the side plate cavity, in the central region of the side plate cavity in the width direction, the flow rate of the melt is slower, manifested as a situation where the surface of the flow front is partially sunken inward. That is to say, the flow direction of some points of the flow front is towards 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.

[0143] 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 generally flows along the boundary, so that at the parting surface, the melt has a relatively large flow rate.

[0144] Therefore, in this embodiment, with the setting of the third gate forming area on the side plate 12, the melt can enter the side plate cavity through the gate on the side plate cavity to quickly fill the side plate cavity. During the injection molding process, the flow rate of the melt in the central region of the side plate cavity in the width direction is increased, and the melt in the side plate cavity can show a convex trend. In this way, there is an obvious front flow of the melt, and each point of the flow front of the melt faces outward, without curling and flipping, and the melt does not converge, ensuring a stable metallic texture on the appearance and increasing the appearance reliability of the workbench 1.

[0145] It can be understood that the top plate 11 and the side plate 12 can be designed with equal thickness or variable thickness. For specific descriptions, reference can be made to the description of the above-mentioned annular ring plate 10, which will not be elaborated here.

[0146] In some embodiments, please refer to Figure 3 and Figure 8 , the multiple gate forming areas include a fourth gate forming area 111. The fourth gate forming area 111 is provided on the non-appearance surface of the top plate 11 and at the position where the top plate 11 is used to connect with the side plate 12. The fourth gate forming area 111 is adjacent to the third gate forming area 121.

[0147] 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 where the top plate cavity is used to connect with the side plate cavity, and the fourth gate is arranged adjacent to the third gate.

[0148] It can be understood that a fourth gate cavity is correspondingly arranged for the fourth gate.

[0149] Exemplarily, in the planar projection perpendicular to the height direction of the workbench 1, the third gate forming area 121 is located in the front side of the fourth gate forming area 111.

[0150] That is to say, the melt flowing in from the second gate roughly fills the front side area of the top plate cavity, and the melt flowing in from the fourth gate roughly fills the rear side area of the top plate cavity.

[0151] Specifically, during the injection molding process, the melt first enters the third gate cavity through the third gate, enters the side plate cavity through the third gate cavity. Part of the melt flows in the side plate cavity, and another part of the melt will flow towards the rear area of the top plate cavity through the connection between the side plate cavity and the top plate cavity, and flow towards the rear fourth gate cavity. The melt flowing towards the fourth gate cavity is at the front edge, but its temperature and flow rate gradually decrease. After the third gate is opened for a period of time, the fourth gate is opened. 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 converge 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, increasing the flow stability of the melt. Moreover, the weld line formed when the melt flowing into the side plate cavity from the fourth gate and the melt flowing towards the top plate cavity from the third gate converge 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.

[0152] In this embodiment, the third gate forming area 121 and the fourth gate forming 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, increasing the qualified rate of the workbench 1.

[0153] In some embodiments, a transition connection part 13 is formed at the junction of the top plate 11 and the side plate 12.

[0154] Correspondingly, in the workbench mold, a transition connection cavity is formed at the junction of the top plate cavity and the side plate cavity.

[0155] That is to say, the transition connection part 13 has an intersection area with both the top plate 11 and the side plate 12. The length direction of the transition connection part 13 is the same as the length direction of the side plate 12 and the length direction of the top plate 11.

[0156] Please refer to Figure 6 , the extending direction of the third gate forming area 121 is perpendicular to the length direction of the transition connecting portion 13.

[0157] Correspondingly, in the workbench mold, the extending direction of the third gate is perpendicular to the length direction of the transition connecting cavity.

[0158] In this embodiment, the extending direction of the third gate forming area 121 is defined by the length direction of the transition connecting portion 13. The third gate forming area 121 extends substantially along the width direction of the side plate 12 on the non-appearance surface of the side plate 12. Thus, the third gate also extends substantially along the width direction of the side plate 12, facilitating a larger flow area for the melt flowing out of the third gate cavity in the width direction of the side plate 12 and facilitating the melt to fill the side plate cavity.

[0159] Please refer to Figure 7 , the extending direction of the fourth gate forming area 111 is perpendicular to the length direction of the transition connecting portion 13.

[0160] Correspondingly, in the workbench mold, the extending direction of the fourth gate is perpendicular to the length direction of the transition connecting cavity

[0161] In this embodiment, the extending direction of the fourth gate forming area 111 is defined by the length direction of the transition connecting portion 13. The fourth gate forming area 111 extends substantially along the width direction of the top plate 11 on the non-appearance surface of the top plate 11. Thus, the fourth gate also extends substantially along the width direction of the top plate 11, facilitating a larger flow area for the melt flowing out of the fourth gate cavity in the width direction of the top plate 11 and facilitating the melt to fill the top plate cavity.

[0162] In some embodiments, the transition connecting portion 13 forms a transition surface at the junction of the non-appearance surface of the top plate 11 and the non-appearance surface of the side plate 12.

[0163] Correspondingly, in the workbench mold, the transition connecting 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.

[0164] Please refer to Figure 6 , the distance d1 between the third gate forming area 121 and the transition surface does not exceed 5 mm, that is, d1 ≤ 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.

[0165] Correspondingly, in the workbench mold, the distance between the third gate and the transition wall does not exceed 5 mm. For example, it can be 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.

[0166] It can be understood that the distance between the third gate forming area 121 and the transition surface is the minimum distance between the third gate forming area 121 and the transition surface along the width direction of the side plate 12.

[0167] In this embodiment, the third gate forming area 121 is arranged close to the transition surface. That is to say, the third gate forming area 121 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 formed, when the melt flows through the third gate, on the one hand, the extension direction of the third gate forms a certain angle with the flow direction of the melt, reducing flow marks. On the other hand, since the third gate is arranged close to the transition surface, 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, increasing the appearance reliability of the workbench 1.

[0168] Please refer to Figure 7 , the distance d2 between the fourth gate forming area 111 and the transition surface does not exceed 5 mm, that is, d2 ≤ 5 mm. For example, it can be 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.

[0169] Correspondingly, in the workbench mold, the distance between the fourth gate and the transition wall does not exceed 5 mm. For example, it can be 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.

[0170] It can be understood that the distance between the fourth gate forming area 111 and the transition surface is the minimum distance between the fourth gate forming area 111 and the transition surface along the width direction of the top plate 11.

[0171] In this embodiment, the fourth gate forming area 111 is arranged close to the transition surface. That is to say, the fourth gate forming 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 forms a certain angle with the flow direction of the melt, reducing flow marks. On the other hand, since the fourth gate is arranged close to the transition surface, 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, increasing the appearance reliability of the workbench 1.

[0172] In some embodiments, refer to Figure 2 and Figure 8 , the annular ring plate 10 is a mirror-symmetrical structure. The number of the first gate forming areas 101 is one and it is located on the symmetry plane L of the annular ring plate 10. The numbers of the second gate forming areas 102, the third gate forming areas 121, and the fourth gate forming areas 111 are two respectively, and they are symmetrically arranged with respect to the symmetry plane L of the annular ring plate 10.

[0173] Correspondingly, in the workbench mold, the number of the first gates is one, and the numbers of the second gates, the third gates, and the fourth gates are two respectively, and they are symmetrically arranged with respect to the symmetry plane L of the annular ring plate cavity.

[0174] In this way, 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. The numbers of the second gates, the third gates, and the fourth gates are two respectively and they are symmetrically arranged with respect to the symmetry plane L of the annular ring plate 10, which can make the melt have appropriate flow velocity and flow rate, and shorten the time to fill the workbench cavity.

[0175] Exemplarily, 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 rear side of the workbench 1. That is, the first gate is opened first, then the second gate is opened, then the third gate is opened, and finally the fourth gate is opened.

[0176] In the description of the present application, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic expressions of the above terms are not necessarily directed 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, without contradiction, those skilled in the art can combine the different embodiments or examples described in the present application and the features of different embodiments or examples.

[0177] The foregoing is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A workbench for a laundry treatment apparatus, characterized in that, The workbench is an integrally injection-molded part. The workbench has a clothing input 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. The non-appearance surface of the workbench has a plurality of gate forming areas corresponding to the gates on the workbench mold; In the planar projection perpendicular to the height direction of the workbench, the connecting line of the projections of the centers of two adjacent gate forming areas is a reference line, and the included angle between the extending direction of the projection of the gate forming area and the reference line is 30° to 150°.

2. The workbench according to claim 1, characterized in that, The included angle between the extending direction of the projection of the gate forming area and the reference line is 60° to 120°.

3. The workbench according to claim 1, characterized in that, The length of the gate forming area in its extending direction is 2 mm to 20 mm; and / or, the width of the gate forming area is 0.6 mm to 2 mm, where the width direction intersects the extending direction.

4. The workbench according to claim 1, characterized in that, In the planar projection perpendicular to the height direction of the workbench, the dimension of the connecting line of the projections of the centers of any two adjacent gate forming areas is 150 mm to 250 mm.

5. The workbench according to claim 1, characterized in that, The workbench includes an annular ring plate. The annular ring plate defines the clothing input opening, and the appearance surface of the annular ring plate faces the center of the clothing input opening. The bottom end of the annular ring plate extends towards the center of the clothing input opening, and at least one of the gate forming areas is arranged on the non-appearance surface of the annular ring plate.

6. The workbench according to claim 5, characterized in that, The annular ring plate is a mirror-symmetrical structure. One of the gate forming areas on the annular ring plate is arranged on the symmetry plane of the annular ring plate, and the remaining gate forming areas on the annular ring plate are symmetrically arranged with respect to the symmetry plane of the annular ring plate.

7. The workbench according to claim 5, wherein The workbench includes a top plate. The top plate is connected to the top end of the annular ring plate. The plurality of gate forming areas include a first gate forming area and a second gate forming area. The first gate forming area is arranged on the front side of the non-appearance surface of the annular ring plate, 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, characterized in that, The workbench includes side plates. The side plates are bent from the side edges of the top plate in the left-right direction towards the bottom side of the top plate. The plurality of gate forming areas include a third gate forming area. The third gate forming area is arranged on the non-appearance surface of the side plates and at the position where the side plates are 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 plurality of gate forming areas include a fourth gate forming area. 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 plates. The fourth gate forming area is arranged adjacent to the third gate forming area.

10. The workbench according to claim 9, characterized in that, A transition connection part is formed at the junction of the top plate and the side plates; The extending direction of the third gate forming area is perpendicular to the length direction of the transition connection part, and / or, the extending direction of the fourth gate forming area is perpendicular to the length direction of the transition connection part.

11. The workbench according to claim 10, characterized in that, The transition connection part forms a transition surface at the junction of the non-appearance surface of the top plate and the non-appearance surface of the side plate; The distance between the third gate forming area and the transition surface does not exceed 5 mm; the distance between the fourth gate forming area and the transition surface does not exceed 5 mm.

12. The workbench according to claim 9, wherein The annular ring plate is 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 two respectively, and they are symmetrically arranged with respect to the symmetric plane of the annular ring plate.

13. A laundry treatment device, characterized in that, It includes the workbench according to any one of claims 1-12.

14. A workbench mold for forming the workbench according to any one of claims 1-12, characterized in that, 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 inlet. The first side wall surface of the workbench cavity in the thickness direction is used for forming the appearance surface of the workbench, and 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 arranged on the second side wall surface of the workbench cavity; In the plane projection perpendicular to the height direction of the workbench cavity, the included angle between the projection connection line of the centers of two adjacent gates and the extension direction of the projection of the gate is 30° to 150°.

15. The workbench mold according to claim 14, characterized in that, The included angle between the projection connection line of the centers of two adjacent gates and the extension direction of the projection of the gate is 60° to 120°.

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