Door body foaming mold

Abstract

The utility model provides a door body foaming mold. The door body foaming mold comprises an upper mold plate and a lower mold plate; the side edges of the upper mold plate and the lower mold plate are connected through a movable part, and the upper mold plate can turn over relative to the lower mold plate; the upper die plate comprises an upper die cavity used for containing a door body lining, and a first boss protruding in the direction of the lower die plate is arranged on the side, facing the lower die plate, of the upper die cavity. The lower die plate comprises a lower die cavity used for containing a door shell of a door body, and a second boss protruding towards the upper die plate is arranged on the side, facing the upper die plate, of the lower die cavity. Thus, through the structure, the door body foaming mold can be pre-deformed in the door body foaming process so as to balance expansion deformation of the door body in the foaming process.

Description

Technical Field

[0001] This application relates to the field of refrigerator door manufacturing, and more specifically, to a door foaming mold. Background Technology

[0002] Currently in the refrigerator industry, the door foaming process involves placing the pre-installed door liner and door frame into a door foaming mold, pouring foaming material between them, and then closing the mold to foam. The door foaming mold is divided into two parts: the upper mold is used to place the door liner, and the lower mold is used to place the door shell.

[0003] The foaming material injected into the door is usually cyclopentane. During the solidification process from liquid to solid, it is quite sensitive to the ambient temperature. When the ambient temperature is at or below zero, the expansion rate of the foaming material will be reduced, resulting in the foaming material inside the door continuing to expand slowly after the door is removed from the mold, causing the door to bulge and deform. Utility Model Content

[0004] In order to overcome the technical problems mentioned in the above background, this application provides a door foaming mold, which includes an upper template and a lower template;

[0005] The sides of the upper template and the lower template are connected by a movable component, and the upper template can be flipped relative to the lower template;

[0006] The upper template includes an upper mold cavity for accommodating the inner lining of the door. The upper mold cavity is provided with a first protrusion on the side facing the lower template, which protrudes towards the lower template. The first protrusion is used to balance the expansion and deformation of the foam material of the inner lining of the door.

[0007] The lower mold plate includes a lower mold cavity for accommodating the door body and door shell. The lower mold cavity is provided with a second boss protruding towards the upper mold plate on the side facing the upper mold plate. The second boss is used to balance the expansion and deformation of the foam material of the door body and door shell.

[0008] In one possible implementation, the upper template includes a first component and a second component for forming the upper mold cavity, the first component and the second component being detachably connected, the first component being located on the side of the second component closer to the lower template, and the first boss being disposed on the side of the first component facing the lower template.

[0009] In one possible implementation, the first boss is detachably connected to the first component;

[0010] The first boss is a reverse-bow boss whose height gradually decreases from the center of the first boss to the periphery of the first boss.

[0011] In one possible implementation, the height of the central protrusion of the first boss is 2mm.

[0012] In one possible implementation, the lower template includes a lower molded plate, a third component, and a fourth component. The third component and the fourth component are sequentially disposed on the side of the lower molded plate near the upper template. The third component and the fourth component are detachable from the lower molded plate. The second boss is disposed on the side of the fourth component facing the upper template and protrudes towards the lower molded plate.

[0013] In one possible implementation, the lower template includes fixed baffles and movable baffles, and the lower mold plate, the fixed baffles, and the plurality of movable baffles form the lower mold cavity;

[0014] One side of the lower mold plate is fixedly connected to the fixed baffle, and the other sides of the lower mold plate are respectively movably connected to a movable baffle.

[0015] In one possible implementation, the lower molded plate is rectangular in shape, and the movable baffle includes a first movable baffle, a second movable baffle, and a third movable baffle.

[0016] The fixed stop bar is fixed to one side of the lower mold plate, and the first movable stop bar, the second movable stop bar, and the third movable stop bar are respectively movably connected to the remaining side of the lower mold plate.

[0017] In one possible implementation, the first movable stop bar, the second movable stop bar, and the third movable stop bar are respectively movably connected to the remaining side of the lower molded plate via a hinge structure.

[0018] In one possible implementation, the second boss is detachably connected to the fourth component;

[0019] The second boss is a reverse-bow boss whose height gradually decreases from the center of the second boss to the periphery of the second boss.

[0020] In one possible implementation, the height of the central protrusion of the second boss is 3mm.

[0021] Based on any of the above aspects, this application provides a door foaming mold. The door foaming mold includes an upper mold plate and a lower mold plate; the sides of the upper mold plate and the lower mold plate are connected by movable parts, and the upper mold plate can be flipped relative to the lower mold plate; the upper mold plate includes an upper cavity for accommodating the inner lining of the door, and the side of the upper mold cavity facing the lower mold plate has a first boss protruding towards the lower mold plate, wherein the first boss is used to balance the expansion and deformation of the foamed material of the inner lining of the door; the lower mold plate includes a lower cavity for accommodating the door shell, and the side of the lower mold cavity facing the upper mold plate has a second boss protruding towards the upper mold plate, wherein the second boss is used to balance the expansion and deformation of the foamed material of the door shell. Thus, with the above structure, the door foaming mold can pre-deform during the door foaming process to balance the expansion and deformation of the door during the foaming process. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a door foaming mold provided in this embodiment;

[0024] Figure 2 A bottom view of the upper template of the door body foaming mold in this embodiment is shown;

[0025] Figure 3 A top view of the underground template of the door body foaming mold in this embodiment is shown.

[0026] Icons: Upper template 10; First protrusion 11; Lower template 20; Fixed stop bar 21; First movable stop bar 22; Second movable stop bar 23; Second protrusion 24; Third movable stop bar 25. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0032] In order to solve the technical problems mentioned in the background, the inventor has innovatively designed the following technical solution, and the specific implementation scheme of this application will be described in detail below with reference to the accompanying drawings.

[0033] Please see Figure 1 , Figure 1 This is a schematic diagram of a door foaming mold provided in this embodiment. The door foaming mold includes: an upper mold plate 10 and a lower mold plate 20; the sides of the upper mold plate 10 and the lower mold plate 20 are connected by a movable member, and the upper mold plate 10 can be flipped relative to the lower mold plate 20; the upper mold plate 10 includes an upper mold cavity for accommodating the inner lining of the door, and the side of the upper mold cavity facing the lower mold plate 20 is provided with a first boss 11 protruding towards the lower mold plate 20, wherein the first boss 11 is used to balance the expansion and deformation of the foaming material of the inner lining of the door; the lower mold plate 20 includes a lower mold cavity for accommodating the door shell, and the side of the lower mold cavity facing the upper mold plate 10 is provided with a second boss 24 protruding towards the upper mold plate 10, wherein the second boss 24 is used to balance the expansion and deformation of the foaming material of the door shell.

[0034] In related technologies, the refrigerator door foaming process involves placing the pre-installed door liner and door frame into a door foaming mold, pouring foaming material between them, and then closing the mold to foam. The door foaming mold is divided into upper and lower parts: the upper mold is used to place the door liner, and the lower mold is used to place the door frame.

[0035] The upper mold cavity of the door foaming mold is machined with a mold core that matches the size and shape of the door lining, ensuring that the door lining is firmly held in place by the mold core. The lower mold plate has a platform that protrudes above the surface of the base plate. This platform, together with four baffles perpendicular to the lower mold plate, forms the lower mold cavity for placing the door frame.

[0036] The foaming material injected into the door is usually cyclopentane, which is quite sensitive to ambient temperature during the liquid solidification process. This causes the foaming material inside the door to continue to expand slowly after the door is removed from the mold, resulting in the door's shape bulging and deforming.

[0037] The door foaming mold of this embodiment includes an upper mold plate and a lower mold plate. The sides of the upper mold plate and the lower mold plate are connected by movable parts, and the upper mold plate can be flipped relative to the lower mold plate. The upper mold plate includes an upper mold cavity for accommodating the inner lining of the door. The side of the upper mold cavity facing the lower mold plate is provided with a first boss protruding towards the lower mold plate, wherein the first boss is used to balance the expansion and deformation of the foaming material of the inner lining of the door. The lower mold plate includes a lower mold cavity for accommodating the door shell. The side of the lower mold cavity facing the upper mold plate is provided with a second boss protruding towards the upper mold plate, wherein the second boss is used to balance the expansion and deformation of the foaming material of the door shell. In this way, the first boss pre-deforms the inner lining of the door, and the second boss pre-deforms the inner shell of the door, so as to balance the expansion and deformation of the foaming material of the inner lining and the inner shell of the door, thereby avoiding the problem that the foaming material inside the door continues to expand slowly after the door is removed from the mold, causing the door to bulge and deform. Furthermore, the upper and lower mold plates are connected by movable parts, which allows for precise positioning when the mold plates are closed, preventing leakage or uneven filling of the foam material. Compared to fixed connections, movable parts can automatically compensate for mold assembly errors, improving production efficiency.

[0038] In this embodiment of the present invention, the upper template 10 includes a first component and a second component for forming the upper mold cavity. The first component and the second component are detachably connected. The first component is located on the side of the second component close to the lower template. The first boss 11 is disposed on the side of the first component facing the lower template 20.

[0039] The first component can be an upper template 10 used to determine the shape of the door's inner lining, and the second component can be an upper template 10 used for support. The first and second components are detachably connected, which not only facilitates the processing of both components but also allows for partial replacement when either component is damaged, saving costs. The upper mold cavity determines the door's appearance and function; its shape determines the door's appearance.

[0040] The detachable connection between the first component and the second component can be a bolt connection or a dovetail groove and locking block connection. No specific limitation is made here on the detachable connection method between the first component and the second component.

[0041] Furthermore, the first protrusion 11 can be a single protrusion or multiple identical protrusions arranged in an array. The shape of the protrusion can be rectangular, cylindrical, or a reverse-bow protrusion that gradually decreases in size from the center to the periphery. No specific limitations are placed on the number or shape of the first protrusion 11 here.

[0042] In this embodiment, the connection between the first protrusion 11 and the first component can be a movable connection, a fixed connection, or a detachable connection. No specific limitation is made on the connection method between the first protrusion 11 and the first component.

[0043] In the solution provided in this embodiment, the first component is connected to the first boss 11, which is used to balance the expansion and deformation of the foamed material of the door lining, and the first boss 11 faces the lower template side. When the door lining is foaming, the presence of the first boss 11 will cause the door lining to undergo pre-deformation according to the shape of the first boss 11 during the foaming process, thereby offsetting the outward bulging deformation caused by subsequent material expansion or thermal stress.

[0044] In this embodiment of the present invention, the first boss 11 is detachably connected to the first component; the first boss 11 is a reverse-bow boss whose protrusion height gradually decreases from the center of the first boss 11 to the periphery of the first boss 11.

[0045] The first protrusion 11 can be detachably connected to the first component via bolts, slots, magnetic attraction, or quick-release pins. No specific limitation is made to the detachable connection method between the first protrusion 11 and the first component. The first protrusion 11 can be located at the center of the first component, around the first component, or at any position on the first component. Preferably, the first protrusion 11 is located at the center of the first component to balance the expansion and deformation of the foamed material.

[0046] Furthermore, the reverse bow boss is a downward-facing arc-shaped boss. The first boss 11 faces the lower template and is a reverse arc-shaped boss that gradually decreases in size from the center of the boss to the periphery.

[0047] In this embodiment, the first boss 11 is detachably connected to the first component, facilitating mold processing, maintenance, and replacement, and allowing the mold to adapt to more types of door linings. Furthermore, when the first boss 11 is a reverse-bow boss with its height gradually decreasing from the center to the periphery, the foam material experiences greater pressure in the central area of ​​the reverse-bow boss, decreasing towards the edge. This precisely matches the actual stress-deformation curve of the door lining, avoiding over-compensation at the edges or insufficient compensation at the center caused by bosses of equal height.

[0048] In some embodiments of this utility model, to match the door requirements of different areas of the refrigerator, the first component can be divided into multiple areas. For example, the first component can be divided into three areas: the freezer compartment, the refrigerator compartment, and the variable temperature compartment, with the variable temperature compartment located between the refrigerator compartment and the freezer compartment. In this case, to balance the expansion and deformation of the foam material during the foaming process of the door lining, the first protrusion 11 can be set in the area corresponding to the variable temperature compartment, or a first protrusion 11 can be set in each of the areas corresponding to the refrigerator compartment, the variable temperature compartment, and the freezer compartment. The conditions for dividing the first component into areas are not specifically limited here, nor is the location of the first protrusions specifically limited.

[0049] In this embodiment of the present invention, the height of the central protrusion of the first boss 11 is 2mm.

[0050] The solution provided in this embodiment allows for dynamic adjustment of the first protrusion 11 by detachably connecting it to the fourth component. The first protrusion 11 can be replaced according to the shrinkage characteristics of the door. For example, if a glass door has poor shrinkage and is fragile, the protrusion height can be set to 1mm to reduce stress concentration in the wide transition zone. If a plastic door has good shrinkage, the protrusion height can be set to 3mm to enhance anti-bow compensation. The height of the first protrusion 11 can be changed according to actual needs; no specific limitation is made here.

[0051] For example, please refer to Figure 2 , Figure 2 A bottom view of the upper template of the door body foaming mold in this embodiment is shown. Figure 2 In the middle, the first component is divided into four regions. To balance the expansion deformation caused by the foam material of the door lining, the first boss 11 is set in the second region located in the middle region.

[0052] In this embodiment of the present invention, the lower template 20 includes a lower mold plate, a third component and a fourth component. The third component and the fourth component are sequentially disposed on the side of the lower mold plate near the upper template 20. The third component and the fourth component are detachable from the lower mold plate. The second boss 24 is disposed on the side of the fourth component facing the upper template 10 and protrudes towards the lower mold plate.

[0053] The lower mold plate serves as the support plate for the lower template 20. The detachable connection between the third and fourth components can be a bolt connection or a dovetail groove and locking block connection; no specific limitation is made here. The detachable connection between the third component and the lower mold plate can also be a bolt connection or a dovetail groove and locking block connection; no specific limitation is made here. The detachable connection between the third component and the fourth component can be the same as or different from the detachable connection between the third component and the lower mold plate; no specific limitation is made here.

[0054] Furthermore, the second protrusion 24 can be a single protrusion or multiple identical protrusions arranged in an array. The protrusion shape can be rectangular, cylindrical, or a reverse-bow protrusion that gradually decreases in size from the center towards the periphery of the second protrusion 24. No specific limitations are placed on the number or shape of the second protrusions here.

[0055] In this embodiment, the connection between the second protrusion 24 and the fourth component can be a movable connection, a fixed connection, or a detachable connection. No specific limitation is made on the connection method between the second protrusion 24 and the fourth component.

[0056] In the solution provided in this embodiment, the fourth component is connected to the second protrusion 24, which is used to balance the expansion and deformation of the foamed material of the door shell, and the second protrusion 24 faces the lower mold plate. When the door shell is foamed, the presence of the second protrusion 24 causes the inner lining shell of the door to pre-deform according to the shape of the second protrusion 24 during the foaming process, thereby offsetting the concave deformation caused by subsequent material expansion or thermal stress. Moreover, the third and fourth components are detachable from the lower mold plate to improve production and maintenance efficiency. When foaming is required for other door models, only the fourth component and the third component or the fourth component need to be disassembled.

[0057] In this embodiment of the utility model, the lower template 20 includes a fixed stop bar 21 and a movable stop bar. The lower mold plate, the fixed stop bar 21, and a plurality of movable stop bars form the lower mold cavity. One side of the lower mold plate is fixedly connected to the fixed stop bar 21, and the other sides of the lower mold plate are respectively movably connected to a movable stop bar.

[0058] In related technologies, there is a platform on the lower mold plate that is higher than the surface of the base plate. This platform, together with four baffles perpendicular to the lower mold plate, forms the lower mold cavity for placing the door frame. The purpose of the lower mold cavity is similar to that of the upper mold cavity, which is to hold the door shell in place to prevent it from falling off. Since the surface of the lower mold cavity platform is a normal plane, and the four baffles are perpendicular to the platform with an angle of about 90° between them, this mold cavity design severely restricts the design of the door frame style.

[0059] In this embodiment, the movable connection method between the movable stop bar and other sides of the lower mold plate can be a guide rail slider connection method, a bolt and positioning pin connection method, or a hinge connection method. The movable connection method between the movable stop bar and the lower mold plate is not specifically limited here.

[0060] The movable stop bar is flexibly connected to the side of the lower mold plate, allowing for flexible adaptation to various door models. By adjusting the relative position of the movable stop bar, the length, width, or contour of the lower mold cavity can be quickly changed to accommodate refrigerator doors of different sizes or shapes without replacing the entire lower mold plate, significantly reducing mold changeover costs and time. For example, when producing a 600mm wide door, the movable stop bar is adjusted inward; when switching to an 800mm wide door, the position of the movable stop bar is extended outward. The connection method between the movable and fixed stop bars and the lower mold plate also improves mold versatility. The fixed stop bar is typically connected to the reference side of the lower mold plate to ensure that the core positioning remains unchanged. The movable stop bar is flexibly connected to other sides of the lower mold plate via slide rails, bolts, or hydraulic mechanisms to meet the needs of non-standard door models. For example, in small-batch, multi-variety production, the same door foaming mold can cover multiple door models, reducing mold inventory. Furthermore, the connection method between the movable and fixed stop bars and the lower mold plate also facilitates maintenance and cleaning. The movable baffle can be removed separately to clean residual foaming material or repair locally damaged parts, thus avoiding the scrapping of the entire mold.

[0061] Please see Figure 3 , Figure 3 A top view of the underground template of the door body foaming mold in this embodiment is shown. In this embodiment of the utility model, the lower mold plate is rectangular in shape, and the movable baffle includes a first movable baffle 22, a second movable baffle 23, and a third movable baffle 25. The fixed baffle 21 is fixed to one side of the lower mold plate, and the first movable baffle 22, the second movable baffle 23, and the third movable baffle 25 are respectively movably connected to the remaining side of the lower mold plate.

[0062] The solution provided in this embodiment significantly improves the adaptability, operational efficiency, and maintenance convenience of the refrigerator door foaming mold through a modular design of a rectangular lower mold plate, a single-sided fixed stop bar, and three-sided adjustable movable stop bars. The three-dimensional dimensions of the lower mold plate are freely adjustable to accommodate various door sizes. Furthermore, the side connected by the fixed stop bar serves as a reference edge, ensuring consistency in the door assembly hole positions. The three movable stop bars on the lower mold plate work together to control the length and width of the door.

[0063] For example, the same mold can be quickly switched to produce 800mm×600mm and 900mm×700mm door bodies, simply by adjusting the position of the movable stop bar and locking it.

[0064] In this embodiment of the invention, the first movable stop bar 22, the second movable stop bar 23 and the third movable stop bar 25 are respectively movably connected to the remaining side of the lower molded plate through a hinge structure.

[0065] A hinge is a mechanical device used to connect two solid objects and allow relative rotation between them. Hinges can be made of movable components or foldable materials.

[0066] The first movable stop bar 22, the second movable stop bar 23, and the third movable stop bar 25 are respectively movably connected to the remaining side of the lower molded plate through a hinge structure, which can realize the outward turning of the first movable stop bar 22, the second movable stop bar 23, and the third movable stop bar 25 relative to the lower molded plate at different angles, thereby realizing different types of door frame structures.

[0067] Furthermore, to accommodate thin-door refrigerators, the upper and lower templates of the door foam mold can be thickened. The thickening method can be achieved by installing a detachable mold or by directly thickening the door foam mold itself; no specific limitations are made here regarding the method of thickening the door foam mold.

[0068] In this embodiment of the present invention, the second boss 24 is detachably connected to the fourth component; the second boss 24 is a reverse-bow boss whose protrusion height gradually decreases from the center of the second boss 24 to the periphery of the second boss 24.

[0069] The detachable connection between the second boss 24 and the fourth component can be a bolt connection, a slot connection, a magnetic connection, or a quick-release pin connection. No specific limitation is made regarding the detachable connection method between the second boss 24 and the fourth component. The second boss 24 can be located at the center of the fourth component, around the fourth component, or at any position on the fourth component. Preferably, the second boss 24 is located at the center of the fourth component to balance the expansion and deformation of the foamed material.

[0070] Furthermore, the reverse bow boss is a downward-facing arc-shaped boss. The second boss 24 is a reverse arc-shaped boss facing the lower mold plate, which gradually decreases in size from the center of the boss to the periphery.

[0071] In this embodiment, the second boss 24 is detachably connected to the fourth component, facilitating mold processing, maintenance, and replacement, and allowing the mold to adapt to more types of door linings. Furthermore, when the second boss 24 is a reverse-bow boss with its height gradually decreasing from its center to its periphery, the foam material experiences greater pressure in the central area of ​​the reverse-bow boss, decreasing towards its edge. This precisely matches the actual stress-deformation curve of the door lining, avoiding over-compensation at the edges or insufficient compensation at the center caused by bosses of equal height.

[0072] In this embodiment of the invention, the height of the central protrusion of the second boss 24 is 3mm.

[0073] In this embodiment, the second protrusion 24 is detachably connected to the fourth component, enabling dynamic adjustment of the protrusion. The second protrusion 24 can be replaced according to the shrinkage characteristics of the door. For example, if a glass door has poor shrinkage and is fragile, the protrusion height can be set to 1mm to reduce stress concentration in the wide transition area. If a plastic door has good shrinkage, the protrusion height can be set to 3mm to enhance anti-bow compensation.

[0074] The height of the second boss 24 can be changed according to actual needs, and the height of the second boss 24 is not specifically limited here.

[0075] In the specific implementation process, the upper mold cavity of the door foaming mold is designed to be a detachable first component and a second component. Due to the complex structure of the door lining, the first component that contacts the door lining is equipped with a 2mm reverse bow protrusion structure that smoothly transitions from the middle to the periphery while maintaining the original structure, in order to balance the expansion and deformation problem of the door lining foaming.

[0076] The lower mold cavity of the door body foaming mold is designed with a detachable third and fourth component. The fourth component, which is in contact with the door shell, is a 3mm reverse bow boss structure with a smooth transition from the middle to the periphery. The reverse bow boss is used to balance the bulging and deformation problem of the door shell foaming.

[0077] Furthermore, the lower mold plate and four stop strips of the lower template form a cavity via hinges, with the four stop strips having corresponding clearances to accommodate the bosses. The side strip fixed to one side of the lower mold plate is a fixed stop strip and cannot be moved. The other three movable stop strips are hinged and can be flipped outwards at a certain angle. In the open mold state, the movable stop strips are in a small-angle outward-flipped state under the tension of the hinge springs at a large angle, facilitating the insertion of the door frame. By adjusting the outward-flipping angle of the movable stop strips, different door styles can be accommodated, improving the practicality of the door foam mold.

[0078] In summary, this application provides a door foaming mold. The door foaming mold includes an upper mold plate and a lower mold plate; the sides of the upper mold plate and the lower mold plate are connected by movable parts, and the upper mold plate can be flipped relative to the lower mold plate; the upper mold plate includes an upper cavity for accommodating the inner lining of the door, and a first boss protruding towards the lower mold plate is provided on the side of the upper mold cavity facing the lower mold plate, wherein the first boss is used to balance the expansion and deformation of the foam material of the inner lining of the door; the lower mold plate includes a lower cavity for accommodating the door shell, and a second boss protruding towards the upper mold plate is provided on the side of the lower mold cavity facing the upper mold plate, wherein the second boss is used to balance the expansion and deformation of the foam material of the door shell. Thus, by pre-deforming the inner lining of the door through the first boss and the inner shell of the door through the second boss, the expansion and deformation of the foam material of the inner lining and the inner shell of the door are balanced, thereby avoiding the problem of the foam material inside the door continuing to expand slowly after the door is removed from the mold, causing the door to bulge and deform. Furthermore, the upper and lower mold plates are connected by movable parts, which allows for precise positioning when the mold plates are closed, preventing leakage or uneven filling of the foam material. Compared to fixed connections, movable parts can automatically compensate for mold assembly errors, improving production efficiency.

[0079] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A door body foaming mold, characterized in that, The door foaming mold includes: an upper template and a lower template; The sides of the upper template and the lower template are connected by a movable component, and the upper template can be flipped relative to the lower template; The upper template includes an upper mold cavity for accommodating the inner lining of the door. The upper mold cavity is provided with a first boss protruding towards the lower template on the side facing the lower template. The first boss is used to balance the expansion and deformation of the foam material of the inner lining of the door. The lower mold plate includes a lower mold cavity for accommodating the door body and door shell. The lower mold cavity is provided with a second boss protruding towards the upper mold plate on the side facing the upper mold plate. The second boss is used to balance the expansion and deformation of the foam material of the door body and door shell.

2. The door foaming mold as described in claim 1, characterized in that, The upper template includes a first component and a second component for forming the upper mold cavity. The first component and the second component are detachably connected. The first component is located on the side of the second component closer to the lower template. The first boss is disposed on the side of the first component facing the lower template.

3. The door foaming mold as described in claim 2, characterized in that, The first boss is detachably connected to the first component; The first boss is a reverse-bow boss whose height gradually decreases from the center of the first boss to the periphery of the first boss.

4. The door foaming mold as described in claim 3, characterized in that, The height of the central protrusion of the first boss is 2mm.

5. The door foaming mold as described in claim 1, characterized in that, The lower template includes a lower molded plate, a third component, and a fourth component. The third component and the fourth component are sequentially disposed on the side of the lower molded plate near the upper template. The third component and the fourth component are detachable from the lower molded plate. The second boss is disposed on the side of the fourth component facing the upper template and protrudes towards the lower molded plate.

6. The door foaming mold as described in claim 5, characterized in that, The lower template includes fixed baffles and movable baffles, and the lower mold plate, the fixed baffles, and the plurality of movable baffles form the lower mold cavity; One side of the lower mold plate is fixedly connected to the fixed baffle, and the other sides of the lower mold plate are respectively movably connected to a movable baffle.

7. The door foaming mold as described in claim 6, characterized in that, The lower molded plate is rectangular in shape, and the movable baffles include a first movable baffle, a second movable baffle, and a third movable baffle. The fixed stop bar is fixed to one side of the lower mold plate, and the first movable stop bar, the second movable stop bar, and the third movable stop bar are respectively movably connected to the remaining side of the lower mold plate.

8. The door foaming mold as described in claim 7, characterized in that, The first movable stop bar, the second movable stop bar, and the third movable stop bar are respectively movably connected to the remaining side of the lower molded plate through a hinge structure.

9. The door foaming mold as described in claim 5, characterized in that, The second boss is detachably connected to the fourth component; The second boss is a reverse-bow boss whose height gradually decreases from the center of the second boss to the periphery of the second boss.

10. The door foaming mold as described in claim 9, characterized in that, The height of the center protrusion of the second boss is 3mm.

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