A refrigerator door lining active flexible demolding blister mold

Abstract

The utility model provides a refrigerator door lining initiative flexible stripping blister mold, relate to refrigerator manufacturing field. The refrigerator door lining initiative flexible stripping blister mold includes door lining blister mold main part, first door seal groove mould is located in the outer periphery of door lining blister mold main part, second door seal groove mould is connected with first door seal groove mould and forms omega door seal groove, cylinder transmission assembly is transmission connection with first door seal groove mould and second door seal groove mould, is used for making first door seal groove mould and second door seal groove mould mutually close or far away, when first door seal groove mould and second door seal groove mould mutually close and connect, first door seal groove mould and second door seal groove mould form omega door seal groove, when first door seal groove mould and second door seal groove mould mutually far away, be used for making refrigerator door lining stripping. The utility model can make the initiative of blister mold core door seal groove and the door seal groove of formed door lining separate, realize non - injury flexible stripping.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator manufacturing, and more specifically, to an active flexible demolding vacuum forming mold for refrigerator door lining. Background Technology

[0002] Currently in the refrigerator industry, the lining, as an important component of the refrigerator door, is typically formed as follows: A vacuum forming machine heats and softens ABS or HIPS sheets, then wraps the softened ABS or HIPS sheets around the main core of the door lining vacuum forming mold. Vacuum adsorption is then used to tightly adhere the softened sheets to the mold. After cooling and solidification, the lining is demolded and separated from the mold. Excess material around the edges is then manually or mechanically removed, resulting in the final refrigerator door lining.

[0003] The refrigerator door liner has a groove around its perimeter, known as the door seal groove. Its main function is to hold the refrigerator door seal. The door seal groove is typically an Ω-shaped groove, wider at the inner end and narrower at the outer end. During the production of the door liner, after vacuum forming, the door seal groove portion of the liner is tightly embedded and attached to the corresponding Ω-shaped groove in the vacuum forming mold. After cooling and solidification, the structural characteristics of the Ω-shaped door seal groove create an interlocking structure between it and the door seal groove of the vacuum forming mold, causing the door liner to become stuck within the mold's door seal groove, making it difficult to demold easily.

[0004] To solve the aforementioned problem of undercutting, the chamfer of the undercutting area of ​​the mold core door seal groove is usually enlarged, or the width of the door seal groove is reduced in the door lining design. However, if the door seal groove width is designed too small, the door seal of the refrigerator product will not be able to be firmly attached to the door lining, and it is easy to fall off during long-term use of opening and closing the door. If the door seal groove width is designed too large, the door lining is easily torn and damaged during the demolding process, resulting in waste. At the same time, cutting off the excess material of the door lining will produce more burrs on the front, affecting the product quality. Utility Model Content

[0005] To overcome the aforementioned shortcomings in the existing technology, the purpose of this utility model is to provide an active flexible demolding vacuum forming mold for refrigerator door liners. This active flexible demolding vacuum forming mold for refrigerator door liners features active flexible demolding, enabling the door sealing groove of the mold core to actively separate from the door sealing groove of the formed door lining, achieving damage-free flexible demolding. This reduces or avoids tearing and cracking of the door lining during demolding, thus improving the product quality of the door lining.

[0006] This utility model provides an active flexible demolding vacuum forming mold for refrigerator door liners, which is used to demold the refrigerator door liners. The active flexible demolding vacuum forming mold for refrigerator door liners has an Ω-shaped door sealing groove around its ring, and includes: The main body of the vacuum forming mold for the door lining; The first door sealing mold is located on the outer periphery of the main body of the door lining vacuum forming mold; The second door sealing groove mold is connected to the first door sealing groove mold to form the Ω-shaped door sealing groove; A cylinder drive assembly is connected to the first door sealing groove mold and the second door sealing groove mold for driving the first door sealing groove mold and the second door sealing groove mold closer to each other or further away from each other; When the first door sealing groove mold and the second door sealing groove mold approach each other and connect, the first door sealing groove mold and the second door sealing groove mold form the Ω-shaped door sealing groove. When the first door sealing groove mold and the second door sealing groove mold move away from each other, it is used to demold the refrigerator door liner.

[0007] Further, in an optional embodiment, the cylinder transmission assembly includes a transmission mounting base, a cylinder drive component, a first transmission structure, and a second transmission structure. The cylinder drive component, the first transmission structure, and the second transmission structure are all mounted on the transmission mounting base. The first transmission structure is drivenly connected to the first door sealing groove mold, and the second transmission structure is drivenly connected to the second door sealing groove mold. The cylinder drive component is drivenly connected to both the first transmission structure and the second transmission structure, respectively, for causing the first transmission structure to drive the first door sealing groove mold to move and causing the second transmission structure to drive the second door sealing groove mold to move, so that the first door sealing groove mold and the second door sealing groove mold move closer to or further away from each other.

[0008] Further, in an optional embodiment, the first transmission structure includes a first connecting rod and a first transmission component. The first connecting rod is rotatably connected to the transmission mounting base, and one end of the first connecting rod is drive-connected to the cylinder drive component. The other end of the first connecting rod is drive-connected to the first transmission component, and the first transmission component is drive-connected to the first door sealing groove mold.

[0009] Furthermore, in an optional embodiment, the first transmission structure further includes a first limiting shaft, which is fixed on the transmission mounting base. The first transmission member is provided with a first limiting groove, and the first limiting shaft can slide within the first limiting groove. The first connecting rod is connected to the first transmission member in a transmission connection so that the first limiting groove cooperates with the first limiting shaft.

[0010] Furthermore, in an optional embodiment, the first connecting rod is rotatably connected to the first transmission member via a pin.

[0011] Furthermore, in an optional embodiment, the first connecting rod is configured as an L-shaped connecting rod, the middle part of which is rotatably connected to the transmission mounting base.

[0012] Further, in an optional embodiment, the second transmission structure includes a second connecting rod and a second transmission component. The second connecting rod is rotatably connected to the transmission mounting base, and one end of the second connecting rod is drive-connected to the cylinder drive component. The other end of the second connecting rod is drive-connected to the second transmission component, and the second transmission component is drive-connected to the second door sealing groove mold.

[0013] Furthermore, in an optional embodiment, the second transmission structure further includes a second limiting shaft, which is fixed on the transmission mounting base. The second transmission member is provided with a second limiting groove, and the second limiting shaft can slide within the second limiting groove. The second connecting rod is connected to the second transmission member in a transmission connection so that the second limiting groove cooperates with the second limiting shaft.

[0014] Furthermore, in an optional embodiment, the second connecting rod is rotatably connected to the second transmission member via a pin.

[0015] Furthermore, in an optional embodiment, the refrigerator door liner active flexible demolding vacuum forming mold further includes a fixing component, which is detachably connected to the first door sealing groove mold and the second door sealing groove mold, for fixing the first door sealing groove mold and the second door sealing groove mold.

[0016] In existing technologies, to solve the aforementioned undercutting problem, the chamfer of the undercutting area of ​​the mold core door sealing groove is usually enlarged, or the width of the door sealing groove is reduced in the door lining design. However, if the door sealing groove width is too small, the door seal of the refrigerator product cannot be firmly attached to the door lining, and it is easy to fall off during long-term use of opening and closing the door. If the door sealing groove width is too large, the door lining is easily torn and damaged during the demolding process, resulting in waste. At the same time, cutting off the excess material of the door lining will produce more burrs on the front, affecting product quality. Compared with the existing technology, the present invention has the following beneficial effects: The refrigerator door lining active flexible demolding vacuum forming mold provided in the embodiment of the present invention sets a first door sealing groove mold and a second door sealing groove mold, and the first door sealing groove mold and the second door sealing groove mold form an Ω-shaped door sealing groove. Under the action of the cylinder transmission assembly, the first door sealing groove mold and the second door sealing groove mold can move closer and further away from each other. Because of the Ω-shaped door sealing groove's characteristic of being larger inside and smaller at the opening, the first and second door sealing groove molds can form an Ω-shaped door sealing groove, facilitating the active separation of the first and second door sealing groove molds from the cooled door liner during demolding, thus completing the demolding action. This refrigerator door liner active flexible demolding vacuum forming mold has the characteristic of active flexible demolding, enabling the door sealing groove of the vacuum forming mold core to actively separate from the door sealing groove of the formed door liner, achieving damage-free flexible demolding. This avoids tearing and cracking of the door liner during demolding, which is beneficial to improving the product quality of the door liner. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the active flexible demolding vacuum forming mold for refrigerator door lining provided in this embodiment of the utility model; Figure 2 A schematic diagram of the active flexible demolding vacuum forming mold for refrigerator door lining provided in an embodiment of this utility model from another perspective; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA; Figure 4 for Figure 3 A magnified schematic diagram of the local structure; Figure 5 A schematic diagram of the active flexible demolding vacuum forming mold for refrigerator door lining provided in this embodiment of the utility model from another perspective; Figure 6 for Figure 5 Enlarged structural diagram at point B; Figure 7 A schematic diagram of the movement direction of the cylinder transmission assembly provided in this embodiment of the present invention during flexible demolding.

[0019] Icons: 100, Refrigerator door lining active flexible demolding vacuum forming mold; 101, Ω-shaped door sealing groove; 110, Door lining vacuum forming mold body; 120, First door sealing groove mold; 130, Second door sealing groove mold; 140, Cylinder transmission assembly; 141, Transmission mounting base; 142, Cylinder drive component; 143, First transmission structure; 1431, First connecting rod; 1432, First transmission component; 1433, First limiting shaft; 1434, First limiting groove; 144, Second transmission structure; 1441, Second connecting rod; 1442, Second transmission component; 150, Fixing assembly. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] 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.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figures 1 to 7This utility model provides an active flexible demolding vacuum forming mold 100 for refrigerator door liners. This active flexible demolding vacuum forming mold 100 for refrigerator door liners features active flexible demolding, enabling the door sealing groove of the mold core to actively separate from the door sealing groove of the formed door lining, achieving damage-free flexible demolding. This avoids tearing and cracking of the door lining during demolding, thus improving the product quality of the door lining.

[0027] like Figure 1 and Figure 2 As shown in the embodiment of this utility model, the refrigerator door liner active flexible demolding vacuum forming mold 100 is used to demold the refrigerator door liner, and the refrigerator door liner active flexible demolding vacuum forming mold 100 is provided with an Ω-shaped door sealing groove 101. The refrigerator door lining active flexible demolding vacuum forming mold 100 includes: a door lining vacuum forming mold body 110; a first door sealing groove mold 120, which is located on the outer periphery of the door lining vacuum forming mold body 110; a second door sealing groove mold 130, which is connected to the first door sealing groove mold 120 to form an Ω-shaped door sealing groove 101; and a cylinder transmission assembly 140, which is connected to the first door sealing groove mold 120 and the second door sealing groove mold 130 for driving the first door sealing groove mold 120 and the second door sealing groove mold 130 to move closer to or further away from each other; when the first door sealing groove mold 120 and the second door sealing groove mold 130 move closer to each other and are connected, the first door sealing groove mold 120 and the second door sealing groove mold 130 form an Ω-shaped door sealing groove 101; when the first door sealing groove mold 120 and the second door sealing groove mold 130 move further away from each other, it is used to demold the refrigerator door lining.

[0028] It should be noted that, in this embodiment of the present invention, the refrigerator door liner active flexible demolding vacuum forming mold 100 includes a first door sealing groove mold 120 and a second door sealing groove mold 130. The first door sealing groove mold 120 and the second door sealing groove mold 130 can form an Ω-shaped door sealing groove 101. Under the action of the cylinder transmission assembly 140, the first door sealing groove mold 120 and the second door sealing groove mold 130 can move closer to each other and further away. That is to say, since the Ω-shaped door sealing groove 101 has the characteristics of a large inner opening and a small outer opening, the first door sealing groove mold 120 and the second door sealing groove mold 130 can form an Ω-shaped door sealing groove 101, which facilitates the active separation of the first door sealing groove mold 120 and the second door sealing groove mold 130 from the door liner after molding and cooling during demolding, thus completing the demolding action.

[0029] Meanwhile, it should also be noted that in existing technologies, the door lining vacuum forming mold has the following drawbacks when the door lining is detached from the mold after thermoforming: To improve the demolding problem, traditional door suction molds typically employ two methods in the design of the door sealing groove: First, for a one-piece cast mold core structure, the fixed structure prevents the core from moving, and the door lining is usually separated from the mold core using a forced detachment method. This method places certain requirements on the door sealing groove design and has a high probability of damage. Second, for structures where the mold core and door sealing groove are manufactured separately, some traditional door suction molds design and process the door sealing groove separately with an inverted design, adding a small spring mechanism inside the inverted structure to assist in pulling the door lining away. This method is also known as "semi-forced detachment." Although there is spring assistance, it is still a passive demolding method, still with a certain probability of door lining damage. Furthermore, this design is difficult to manufacture and has a high mold failure rate. Both of the aforementioned door liner demolding methods are passive, rigid demolding, which carries a certain probability of door liner damage. Furthermore, to reduce damage from "forced" or "semi-forced" demolding, traditional door closer molds typically require frequent grinding, lubrication, and chamfering of the door seal groove forming area, while also reducing the groove width during door liner design. These operations increase the mold maintenance burden and limit refrigerator door design and manufacturing. Because traditional door closer molds cannot actively demold, the door seal groove design is limited, forcing the removal of excess material around the door liner to be done from the front. This method results in numerous burrs on the front of the door liner, negatively impacting the user experience.

[0030] The refrigerator door liner active flexible demolding vacuum forming mold 100 provided in this embodiment of the utility model has the characteristics of "active" and "flexible". First, the Ω-shaped door sealing groove 101 is formed by connecting the first door sealing groove mold 120 and the second door sealing groove mold 130. The first door sealing groove mold 120 and the second door sealing groove mold 130 move closer or further apart through the cylinder transmission assembly 140, which can make the door sealing groove of the vacuum forming mold core actively separate from the door sealing groove of the formed door liner. That is, it can realize active demolding between the formed door liner and the mold, realize flexible demolding without damage, thereby avoiding tearing and cracking of the door liner during demolding, which is conducive to improving the product yield and quality of the door liner.

[0031] like Figure 3 and Figure 4As shown in the embodiment of this utility model, the cylinder transmission assembly 140 includes a transmission mounting base 141, a cylinder drive component 142, a first transmission structure 143, and a second transmission structure 144. The cylinder drive component 142, the first transmission structure 143, and the second transmission structure 144 are all mounted on the transmission mounting base 141. The first transmission structure 143 is connected to the first door sealing mold 120, and the second transmission structure 144 is connected to the second door sealing mold 130. The cylinder drive component 142 is connected to the first transmission structure 143 and the second transmission structure 144 respectively, for causing the first transmission structure 143 to drive the first door sealing mold 120 to move and causing the second transmission structure 144 to drive the second door sealing mold 130 to move, so that the first door sealing mold 120 and the second door sealing mold 130 move closer to or further away from each other.

[0032] It should be understood that the transmission mounting base 141 is used to install the cylinder drive component 142, the first transmission structure 143 and the second transmission structure 144. The cylinder drive component 142 is used to provide power. The first transmission structure 143 and the second transmission structure 144 are respectively connected to the first door sealing mold 120 and the second door sealing mold 130 to realize the mutual approach or distance movement of the first door sealing mold 120 and the second door sealing mold 130, thereby realizing active flexible demolding.

[0033] Please continue reading. Figure 4 Furthermore, the first transmission structure 143 includes a first connecting rod 1431 and a first transmission member 1432. The first connecting rod 1431 is rotatably connected to the transmission mounting base 141, and one end of the first connecting rod is connected to the cylinder drive member 142. The other end of the first connecting rod 1431 is connected to the first transmission member 1432. The first transmission member 1432 is connected to the first door sealing groove mold 120.

[0034] Optionally, in this embodiment, the first transmission structure 143 further includes a first limiting shaft 1433, which is fixed to the transmission mounting base 141. The first transmission member 1432 is provided with a first limiting groove 1434, and the first limiting shaft 1433 can slide within the first limiting groove 1434. The first connecting rod 1431 is connected to the first transmission member 1432 so that the first limiting groove 1434 cooperates with the first limiting shaft 1433. That is, under the drive of the first connecting rod 1431, the first limiting groove 1434 of the first transmission member 1432 can slide relative to the first limiting shaft 1433, thereby limiting the movement of the first transmission member 1432.

[0035] Furthermore, in this embodiment, the first connecting rod 1431 is rotatably connected to the first transmission member 1432 via a pin. Optionally, in this embodiment, the first connecting rod 1431 is configured as an L-shaped connecting rod, with the middle part of the L-shaped connecting rod rotatably connected to the transmission mounting base 141. This rotatable connection can be a pin connection, and this embodiment of the present invention does not impose specific requirements or limitations on this.

[0036] Furthermore, the second transmission structure 144 includes a second connecting rod 1441 and a second transmission member 1442. The second connecting rod 1441 is rotatably connected to the transmission mounting base 141, and one end of the second connecting rod is connected to the cylinder drive member 142. The other end of the second connecting rod 1441 is connected to the second transmission member 1442. The second transmission member 1442 is connected to the second door sealing groove mold 130.

[0037] Optionally, in this embodiment, the second transmission structure 144 further includes a second limiting shaft, which is fixed to the transmission mounting base 141. The second transmission member 1442 is provided with a second limiting groove, and the second limiting shaft can slide within the second limiting groove. The second connecting rod 1441 is connected to the second transmission member 1442 so that the second limiting groove cooperates with the second limiting shaft. That is, under the drive of the second connecting rod 1441, the first limiting groove 1434 provided in the second transmission member 1442 can slide relative to the second limiting shaft, thereby limiting the movement of the second transmission member 1442.

[0038] Furthermore, in this embodiment, the second connecting rod 1441 is rotatably connected to the second transmission member 1442 via a pin. Optionally, in this embodiment, the second connecting rod 1441 is configured as an L-shaped connecting rod, with the middle part of the L-shaped connecting rod rotatably connected to the transmission mounting base 141. This rotatable connection can be a pin connection, and this embodiment of the present invention does not impose specific requirements or limitations on this.

[0039] Please see Figure 7 The diagram illustrates the motion and force of the cylinder transmission assembly 140 during flexible demolding. The cylinder drive 142 drives the first connecting rod 1431 and the second connecting rod 1441 upwards. The first connecting rod 1431 and the second connecting rod 1441 move to both sides under the force (the first connecting rod 1431 moves to the right and the second connecting rod 1441 moves to the left), thereby driving the first transmission member 1432 and the second transmission member connected to them to move to both sides, thus achieving flexible demolding.

[0040] The refrigerator door liner active flexible demolding vacuum forming mold 100 may further include a fixing component 150, which is detachably connected to the first door sealing groove mold 120 and the second door sealing groove mold 130 for fixing the first door sealing groove mold 120 and the second door sealing groove mold 130. It should be noted that during vacuum forming, the fixing component 150 fixes the first door sealing groove mold 120 and the second door sealing groove mold 130 to ensure the structural stability of the Ω-shaped door sealing groove 101 during the forming process. When demolding is required, the fixing component 150 is first released from the fixation between the first door sealing groove mold 120 and the second door sealing groove mold 130, and then the first door sealing groove mold 120 and the second door sealing groove mold 130 are moved away from each other by the cylinder transmission component 140 to achieve active flexible demolding.

[0041] Optionally, the fixing component 150 may include a fixing block and fixing bolts or screws, with at least two fixing bolts or screws. The two fixing bolts or screws are connected to the first door sealing mold 120 and the second door sealing mold 130 respectively via the fixing block. Of course, this is not the only possibility, and no specific requirements or limitations are made in this embodiment.

[0042] Please refer to the following: Figures 1 to 7 The refrigerator door liner active flexible demolding vacuum forming mold 100 provided in this embodiment of the utility model has a first door sealing groove mold 120 and a second door sealing groove mold 130, which together form an Ω-shaped door sealing groove 101. Under the action of the cylinder transmission assembly 140, the first door sealing groove mold 120 and the second door sealing groove mold 130 can move closer and further apart. Because the Ω-shaped door sealing groove 101 has the characteristic of being larger inside and smaller at the opening, the first door sealing groove mold 120 and the second door sealing groove mold 130 can form an Ω-shaped door sealing groove 101, which facilitates the active separation of the first door sealing groove mold 120 and the second door sealing groove mold 130 from the door liner after molding and cooling during demolding, thus completing the demolding action. The refrigerator door liner active flexible demolding vacuum forming mold 100 has the feature of active flexible demolding, which can actively separate the door sealing groove of the mold core from the door sealing groove of the formed door liner, achieving flexible demolding without damage. This can avoid tearing and cracking of the door liner during demolding, which is conducive to improving the product quality of the door liner.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] The above descriptions are merely various embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A refrigerator door liner active flexible demolding vacuum forming mold, used for demolding the refrigerator door liner, wherein the refrigerator door liner active flexible demolding vacuum forming mold is provided with an Ω-shaped door sealing groove, characterized in that, The refrigerator door lining active flexible demolding vacuum forming mold includes: The main body of the vacuum forming mold for the door lining; The first door sealing mold is located on the outer periphery of the main body of the door lining vacuum forming mold; The second door sealing groove mold is connected to the first door sealing groove mold to form the Ω-shaped door sealing groove; A cylinder drive assembly is connected to the first door sealing groove mold and the second door sealing groove mold for driving the first door sealing groove mold and the second door sealing groove mold closer to each other or further away from each other; When the first door sealing groove mold and the second door sealing groove mold approach each other and connect, the first door sealing groove mold and the second door sealing groove mold form the Ω-shaped door sealing groove. When the first door sealing groove mold and the second door sealing groove mold move away from each other, it is used to demold the refrigerator door liner.

2. The refrigerator door lining active flexible demolding vacuum forming mold according to claim 1, characterized in that, The cylinder transmission assembly includes a transmission mounting base, a cylinder drive component, a first transmission structure, and a second transmission structure. The cylinder drive component, the first transmission structure, and the second transmission structure are all mounted on the transmission mounting base. The first transmission structure is connected to the first door sealing groove mold, and the second transmission structure is connected to the second door sealing groove mold. The cylinder drive component is connected to both the first transmission structure and the second transmission structure, respectively, to cause the first transmission structure to drive the first door sealing groove mold to move and the second transmission structure to drive the second door sealing groove mold to move, so that the first door sealing groove mold and the second door sealing groove mold move closer to or further apart from each other.

3. The refrigerator door lining active flexible demolding vacuum forming mold according to claim 2, characterized in that, The first transmission structure includes a first connecting rod and a first transmission component. The first connecting rod is rotatably connected to the transmission mounting base, and one end of the first connecting rod is drive-connected to the cylinder drive component. The other end of the first connecting rod is drive-connected to the first transmission component, and the first transmission component is drive-connected to the first door sealing groove mold.

4. The refrigerator door lining active flexible demolding vacuum forming mold according to claim 3, characterized in that, The first transmission structure further includes a first limiting shaft, which is fixed on the transmission mounting base. The first transmission component is provided with a first limiting groove, and the first limiting shaft can slide within the first limiting groove. The first connecting rod is connected to the first transmission component so that the first limiting groove cooperates with the first limiting shaft.

5. The refrigerator door lining active flexible demolding vacuum forming mold according to claim 4, characterized in that, The first connecting rod is rotatably connected to the first transmission component via a pin.

6. The refrigerator door lining active flexible demolding vacuum forming mold according to claim 4, characterized in that, The first connecting rod is configured as an L-shaped connecting rod, and the middle part of the L-shaped connecting rod is rotatably connected to the transmission mounting base.

7. The refrigerator door liner active flexible release thermoforming mold according to any one of claims 2-6, characterized in that, The second transmission structure includes a second connecting rod and a second transmission component. The second connecting rod is rotatably connected to the transmission mounting base, and one end of the second connecting rod is drive-connected to the cylinder drive component. The other end of the second connecting rod is drive-connected to the second transmission component, and the second transmission component is drive-connected to the second door sealing groove mold.

8. The refrigerator door liner active flexible release thermoforming mold according to claim 7, characterized in that, The second transmission structure further includes a second limiting shaft, which is fixed on the transmission mounting base. The second transmission component is provided with a second limiting groove, and the second limiting shaft can slide within the second limiting groove. The second connecting rod is connected to the second transmission component so that the second limiting groove cooperates with the second limiting shaft.

9. The refrigerator door liner active flexible release thermoforming mold according to claim 8, characterized in that, The second connecting rod is rotatably connected to the second transmission component via a pin.

10. The refrigerator door liner active flexible release thermoforming mold according to any one of claims 1-6, characterized in that, The refrigerator door lining active flexible demolding vacuum forming mold also includes a fixing component, which is detachably connected to the first door sealing groove mold and the second door sealing groove mold, and is used to fix the first door sealing groove mold and the second door sealing groove mold.

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