Foaming mold for refrigerator door body
By using a movable anti-spill device in the refrigerator door foaming mold, the low production efficiency problem caused by manual sticking of breathable tape is solved, and the effect of automatically preventing spills and improving production efficiency is achieved.
Patent Information
- Application Number
- CN202410182923.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2025-08-19
AI Technical Summary
In the prior art, the fridge door body needs to be foamed manually, resulting in low production efficiency.
A refrigerator door foaming mold is designed, and a spill-proof device including a guide rail assembly and a movable first cylinder is used to drive the breathable rubber sleeve into the breathable hole through the top rod of the first cylinder to prevent spilling, and automatically retract after foaming is completed.
It realizes the effective prevention of foaming material overflow while maintaining breathability, and improves production efficiency.
Smart Images
Figure CN120503369A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of refrigerators, for example, to a foaming mold for a refrigerator door. Background Art
[0002] The foaming process for refrigerator doors is a crucial step in the production process. The expansion of the foaming agent generates pressure, and the chemical reaction generates heat. Ventilation holes are often created in the molded trim strips of the door to prevent deformation or cracking of the door material and to ensure uniform foaming.
[0003] Related Art In order to solve the problem of material overflow at the vent holes during the foaming process, a breathable tape is usually manually pasted on the vent holes to prevent material overflow.
[0004] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:
[0005] Since the breathable tape needs to be manually pasted, the production efficiency is low.
[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention
[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.
[0008] The disclosed embodiment provides a refrigerator door foaming mold, which solves the problem of low production efficiency caused by manual pasting of breathable tape.
[0009] In some embodiments, the refrigerator door foaming mold includes:
[0010] The mold body is used to place the door body with ventilation holes;
[0011] The anti-overflow device includes a guide rail assembly and a first cylinder; the guide rail assembly extends in a direction located on one side of the vent hole, and the first cylinder is movable along the guide rail assembly;
[0012] Among them, the first cylinder includes a retractable first push rod, and a breathable rubber sleeve is provided at the end of the first push rod; the first cylinder has a first moving position, and the first moving position corresponds to the retractable direction of the first push rod toward the air hole; when the first cylinder moves to the first moving position, the first push rod can drive the breathable rubber sleeve to extend into the air hole, thereby preventing overflow.
[0013] Optionally, the guide rail assembly includes:
[0014] The motor track is mounted on the mold body and is located on one side of the vent hole;
[0015] The linear motor comprises a motor base, wherein the motor base is mounted on a motor track and is movable along the motor track;
[0016] In addition, the first cylinder is installed on the motor base.
[0017] Optionally, the motor track is arranged horizontally; and the anti-overflow device further comprises:
[0018] The controller controls the horizontal distance of movement of the first cylinder through the linear motor according to the horizontal position of the air vent.
[0019] Optionally, the anti-overflow device further includes:
[0020] The lifting assembly is used to drive the first cylinder to move up and down.
[0021] Optionally, mounting supports are provided at both ends of the motor track; the lifting assembly includes:
[0022] a third cylinder, provided on the mold body, comprising a retractable third ejector rod;
[0023] In addition, the two third cylinders are respectively arranged under the two erection supports, and the ends of the two third push rods are respectively connected to the two erection supports; when the two third push rods are synchronously extended and retracted, the motor track is driven to rise and fall synchronously.
[0024] Optionally, the lifting assembly includes:
[0025] a third cylinder, disposed on the motor base, comprising a retractable third ejector rod;
[0026] In addition, the first cylinder is installed at the end of the third push rod, and the third push rod drives the first cylinder to move up and down when it is extended or retracted.
[0027] Optionally, the third push rod is arranged vertically; and the anti-overflow device further comprises:
[0028] The controller controls the vertical distance moved by the first cylinder through the third cylinder according to the vertical position of the air vent.
[0029] Optionally, a plurality of breathable rubber sleeves are provided at the end of the first push rod, and the plurality of breathable rubber sleeves are evenly spaced along the axial direction of the first push rod;
[0030] Furthermore, the diameters of the multiple breathable rubber sleeves gradually increase from the end of the first push rod to the head end.
[0031] Optionally, the anti-overflow device further includes:
[0032] The controller controls the telescopic distance of the first push rod through the first cylinder according to the aperture of the air vent.
[0033] Optionally, the anti-overflow device further includes an air supply component, which includes:
[0034] a first adapter connected to the first cylinder via a first pipe section;
[0035] A second adapter is connected to the gas supply equipment through a second pipe section;
[0036] Furthermore, when the first adapter and the second adapter are docked, the air supply device supplies air to the first cylinder through the second pipe section and the first pipe section in sequence.
[0037] Optionally, the mold body is movably provided, and the first adapter is provided on the mold body; the air supply assembly further comprises:
[0038] The second cylinder includes a retractable second push rod, and the second adapter is provided at the end of the second push rod;
[0039] The mold body has a second moving position, which corresponds to the first adapter and the second adapter. When the mold body moves to the second moving position, the second ejector can drive the second adapter to connect with the first adapter.
[0040] The refrigerator door foaming mold provided by the embodiment of the present disclosure can achieve the following technical effects:
[0041] During the foaming process, the door is placed on the mold body, and the first push rod is extended toward the vent hole by the first air cylinder. This push rod drives the breathable rubber sleeve into the vent hole, maintaining ventilation while preventing the foamed material from overflowing from the vent hole. When the foaming process is complete, the first air cylinder retracts the first push rod. This push rod then drives the breathable rubber sleeve out of the vent hole, allowing for further operations on the door. This anti-overflow device effectively improves production efficiency.
[0042] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0043] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,
[0044] Figure 1 Schematic diagram of the structure of the refrigerator door foaming mold provided by the embodiment of the present disclosure;
[0045] Figure 2 yes Figure 1 A magnified view of part A;
[0046] Figure 3 is a structural schematic diagram of a first cylinder provided by an embodiment of the present disclosure;
[0047] Figure 4 is a structural schematic diagram of another first cylinder provided by an embodiment of the present disclosure;
[0048] Figure 5 is a schematic diagram of the positions of vent holes at different heights provided in an embodiment of the present disclosure;
[0049] Figure 6 is a structural schematic diagram of a lifting assembly provided by an embodiment of the present disclosure;
[0050] Figure 7 It is a structural schematic diagram of another lifting assembly provided in an embodiment of the present disclosure.
[0051] Reference numerals:
[0052] 100: mold body; 110: door body; 111: vent hole;
[0053] 200: first cylinder; 210: first push rod; 211: breathable rubber sleeve; 220: second cylinder; 221: second push rod; 230: third cylinder; 231: third push rod;
[0054] 300: first adapter; 301: first pipe section; 310: second adapter; 311: second pipe section; 312: third pipe section; 320: fixing platform;
[0055] 400: Motor track; 401: Mounting support; 410: Motor base. DETAILED DESCRIPTION
[0056] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.
[0057] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that such terms are interchangeable where appropriate to describe the embodiments of the present disclosure. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.
[0058] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0059] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.
[0060] Unless otherwise stated, the term "plurality" means two or more.
[0061] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.
[0062] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.
[0063] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
[0064] Combine Figure 1-7As shown, in a first embodiment, a refrigerator door foaming mold includes a mold body 100 and an anti-overflow device. The mold body 100 is used to place the door body 110 having a vent hole 111 therein. The anti-overflow device is disposed on one side of the mold body 100 and includes a first cylinder 200. The first cylinder 200 includes a retractable first push rod 210, the end of which is provided with a breathable rubber sleeve 211. Furthermore, the first push rod 210 retracts toward the vent hole 111, driving the breathable rubber sleeve 211 into the vent hole 111 to prevent overflow.
[0065] In this embodiment, during the foaming process, the door body 110 is placed on the mold body 100, and the first push rod 210 is extended toward the air vent 111 by the first air cylinder 200. At this time, the first push rod 210 drives the breathable rubber sleeve 211 to extend into the air vent 111, thereby preventing the foaming material from overflowing from the air vent 111 while maintaining ventilation. When the foaming process is completed, the first air cylinder 200 retracts the first push rod 210. At this time, the first push rod 210 drives the breathable rubber sleeve 211 to disengage from the air vent 111, so that other operations can be performed on the door body 110. In this way, under the action of the anti-overflow device, production efficiency can be effectively improved.
[0066] Optionally, when there are multiple vent holes 111, the anti-overflow device includes a first cylinder 200; Figure 3 As shown, the first cylinder 200 includes a plurality of first push rods 210 , and the plurality of first push rods 210 correspond one-to-one to the plurality of air holes 111 .
[0067] In this embodiment, multiple push rods are evenly arranged along the side of the cylinder body of the first cylinder 200. In this way, multiple breathable rubber sleeves 211 can be sent into the corresponding breathable holes 111 using one first cylinder 200, which is more suitable for the situation where the breathable holes 111 are compactly and evenly arranged.
[0068] Alternatively, as Figure 2 As shown, when there are multiple air holes 111 , the anti-overflow device includes multiple first cylinders 200 ; wherein the number of first push rods 210 of the multiple first cylinders 200 is the same or different, and each first push rod 210 corresponds to one air hole 111 .
[0069] In this embodiment, the plurality of first cylinders 200 are arranged according to the positions of the air holes 111. In this way, the plurality of air-permeable rubber sleeves 211 are fed into the corresponding air holes 111 by the plurality of cylinders, which is more suitable for situations where the number of air holes 111 is large or the distribution is uneven.
[0070] For example, the door body 110 is provided with six air holes 111, five of which are evenly spaced, while the other air hole 111 is spaced farther apart. The overflow prevention device includes two first cylinders 200, one of which is provided with five first push rods 210, corresponding to the five evenly spaced air holes 111; the other first cylinder 200 is provided with one first push rod 210, corresponding to the air hole 111 spaced farther apart.
[0071] Optionally, the diameter of the breathable rubber sleeve 211 is adapted to the aperture of the breathable hole 111. In this way, after the breathable rubber sleeve 211 extends into the breathable hole 111, overflow can be effectively prevented.
[0072] Optionally, the anti-overflow device further includes an air supply component, which is used to supply air to the first cylinder 200 .
[0073] Alternatively, as Figure 2 As shown, the air supply assembly includes a first adapter 300 and a second adapter 310. The first adapter 300 is connected to the first cylinder 200 via a first pipe section 301; the second adapter 310 is connected to the air supply device via a second pipe section 311. When the first adapter 300 and the second adapter 310 are connected, the air supply device can sequentially supply air to the first cylinder 200 via the second pipe section 311 and the first pipe section 301.
[0074] In this embodiment, due to the limited installation space of the production line, it is difficult for the gas supply equipment to directly connect to the first cylinder 200 through a long pipeline. Therefore, a gas line connector consisting of a first adapter 300 and a second adapter 310 is used to facilitate the gas supply equipment to the first cylinder 200.
[0075] Optionally, the mold body 100 is movably arranged, and the first adapter 300 is arranged on the mold body 100; the air supply assembly also includes a second cylinder 220, the second cylinder 220 includes a retractable second push rod 221, and the second adapter 310 is arranged at the end of the second push rod 221; wherein, the mold body 100 has a second moving position, and the second moving position corresponds to the first adapter 300 and the second adapter 310; and, when the mold body 100 moves to the second moving position, the second push rod 221 can drive the second adapter 310 to connect with the first adapter 300.
[0076] In this embodiment, the mold body 100 is movably arranged on the production line, thereby facilitating various operation processes on the door body 110. The first adapter 300 moves synchronously with the mold body 100. When the mold body 100 moves to the second moving position, the second cylinder 220 extends the second push rod 221. At this time, the second push rod 221 drives the second adapter 310 to connect with the first adapter 300, so that the air supply equipment can supply air to the first cylinder 200 to extend the first push rod 210 and drive the breathable rubber sleeve 211 to extend into the air hole 111. When the foaming process is completed, the second push rod 221 is retracted by the second cylinder 220, and the first push rod 20 is retracted by the first cylinder 200. At this time, the second push rod 221 drives the second adapter 310 to disengage from the first adapter 300, and the mold body 100 can continue to move to the next operation process.
[0077] Alternatively, as Figure 1 As shown, a fixing platform 320 is provided on one side of the mold body 100 , and the fixing platform 320 is located on one side of the moving track of the mold body 100 . The second adapter 310 and the second cylinder 220 are installed on the fixing platform 320 .
[0078] Optionally, the first adapter 300 has multiple first interfaces. If the overflow prevention device includes multiple first cylinders 200, each first cylinder 200 is connected to a first interface via a first pipe segment 301. The second adapter 310 has multiple second interfaces corresponding to the multiple first interfaces. Each second interface corresponding to a first interface having a first pipe segment 301 is connected to the air supply device via a second pipe segment 311. This facilitates the air supply device to simultaneously supply air to multiple first cylinders 200.
[0079] For example, the first adapter 300 is provided with five sequentially arranged first interfaces, and the second adapter 310 is provided with five corresponding second interfaces that can be connected one by one. The overflow prevention device includes two first cylinders 200, one of which is connected to the first first interface via a first pipe section 301, and the other first cylinder 200 is connected to the fifth first interface via a first pipe section 301. Furthermore, the first second interface of the second adapter 310 is connected to the air supply device via a second pipe section 311, and the fifth second interface of the second adapter 310 is connected to the air supply device via a second pipe section 311. In this way, the air supply device can simultaneously supply air to both first cylinders 200.
[0080] Optionally, the second cylinder 220 is connected to the air supply device through the third pipe section 312. In this way, air can be supplied to the first cylinder 200 and the second cylinder 220 at the same time through a set of air supply equipment.
[0081] In a second embodiment, a refrigerator door foaming mold includes a mold body 100 and an anti-overflow device. The mold body 100 is used to place a door body 110 having an air vent 111. The anti-overflow device includes a guide rail assembly and a first cylinder 200. The guide rail assembly extends toward one side of the air vent 111, and the first cylinder 200 is movable along the guide rail assembly. The first cylinder 200 includes a retractable first push rod 210, the end of which is provided with a breathable rubber sleeve 211. The first cylinder 200 has a first movable position, corresponding to the retractable direction of the first push rod 210 toward the air vent 111. When the first cylinder 200 moves to the first movable position, the first push rod 210 drives the breathable rubber sleeve 211 into the air vent 111, thereby preventing overflow.
[0082] In this embodiment, an improvement is made to the first embodiment so that the first cylinder 200 can move along the guide rail assembly. When the foaming process is performed, the door body 110 is placed on the mold body 100. The first cylinder 200 is then moved to the first moving position along the guide rail assembly, and the first push rod 210 is then extended toward the air vent 111 by the first cylinder 200. At this time, the first push rod 210 drives the breathable rubber sleeve 211 to extend into the air vent 111, so that while maintaining ventilation, the foaming material can be prevented from overflowing from the air vent 111. When the foaming process is completed, the first push rod 210 is retracted by the first cylinder 200. At this time, the first push rod 210 drives the breathable rubber sleeve 211 to disengage from the air vent 111, so that other operating procedures can be performed on the door body 110. In this way, under the action of the anti-overflow device, production efficiency can be effectively improved. Moreover, since the opening positions of the air holes 111 of door bodies 110 of various specifications are not the same, there are differences in the first moving positions. Therefore, the movable first cylinder 200 enables the refrigerator door foaming mold to be applicable to door bodies 110 of various specifications.
[0083] Optionally, the guide rail assembly includes a motor track 400 and a linear motor. Figure 2 As shown, the motor track 400 is mounted on the mold body 100 and is located on one side of the air vent 111; the linear motor includes a motor base 410, which is installed on the motor track 400 and can move along the motor track 400; and the first cylinder 200 is installed on the motor base 410.
[0084] In this embodiment, a linear motor drives the motor base 410 along the motor track 400, which in turn drives the first cylinder 200 to move synchronously. A linear motor is an electric transmission device that directly converts electrical energy into linear mechanical energy. An encoder is typically installed on a linear motor to calculate its position by measuring the motor's rotation angle. This eliminates the need for numerous intermediate transmission mechanisms, speeding up system response and improving accuracy.
[0085] Optionally, the anti-overflow device includes multiple first cylinders 200, each of which is provided with a corresponding linear motor, and the motor bases 410 of all the linear motors can move along the motor track 400. In this way, multiple first cylinders 200 can all move along the motor track 400, which is more suitable for situations where the number of air holes 111 is large or the distribution is uneven.
[0086] Optionally, an injection molding strip is provided on the first side of the door body 110, and the injection molding strip is provided with an air vent 111. The motor track 400 is arranged along the first side of the door body 110 so that the first cylinder 200 can move along the motor track 400 to the first moving position corresponding to the air vent 111.
[0087] Optionally, the motor track 400 is arranged around the side edge of the door body 110. In this way, no matter whether the door body 110 is rectangular or irregular in shape, and no matter which side of the door body 110 the injection-molded decorative strip with the air vent 111 is installed on, the linear motor can accurately drive the first cylinder 200 to move to the corresponding first moving position.
[0088] Optionally, the motor track 400 is arranged horizontally; the anti-overflow device further includes a controller, which controls the horizontal distance of movement of the first cylinder 200 according to the horizontal position of the air vent 111 and through the linear motor.
[0089] In this embodiment, the mold body 100 is positioned horizontally, and the door body 110 is also positioned horizontally after being placed on the mold body 100. The horizontal positions of the air holes 111 of doors 110 of different specifications vary. The controller determines the horizontal position of the air holes 111 based on the specifications of the door body 110, calculates the horizontal distance that the first cylinder 200 needs to move, and finally uses the linear motor to drive the first cylinder 200 to move the horizontal distance to reach the corresponding first position.
[0090] Optionally, the anti-overflow device further comprises a lifting assembly, which is used to drive the first cylinder 200 to move up and down. In this way, the vertical position of the first cylinder 200 can be adjusted when the motor track 400 moves up and down.
[0091] Alternatively, as Figure 6 As shown, mounting supports 401 are provided at both ends of the motor track 400; the lifting assembly includes a third cylinder 230, which is arranged on the mold body 100, and the third cylinder 230 includes a retractable third push rod 231; and the two third cylinders 230 are respectively arranged under the two mounting supports 401, and the ends of the two third push rods 231 are respectively connected to the two mounting supports 401; when the two third push rods 231 are synchronously extended and retracted, the motor track 400 is driven to rise and fall synchronously.
[0092] In this embodiment, the third push rod 231 is arranged vertically. When the third push rod 231 is extended, it drives the motor track 400 upward, which in turn drives the first cylinder 200 upward. When the third push rod 231 is retracted, it drives the motor track 400 downward, which in turn drives the first cylinder 200 downward. This arrangement allows the height of the first cylinder 200 to be adjusted by using the two third cylinders 230. This is particularly useful when the air vents 111 of doors 110 of the same specification have the same height, while the air vents 111 of doors 110 of different specifications have different heights.
[0093] Optionally, when the motor track 400 is arranged around the side edge of the door body 110, the motor track 400 can be supported by more mounting brackets 401, and a third cylinder 230 is set under each mounting bracket, so that all third push rods 231 can be synchronously extended and retracted to drive the motor track 400 to rise and fall smoothly.
[0094] Optionally, the lifting assembly includes a third cylinder 230. Figure 7 As shown, the third cylinder 230 is arranged on the motor base 410, and the third cylinder 230 includes a retractable third push rod 231; and the first cylinder 200 is installed at the end of the third push rod 231, and the third push rod 231 drives the first cylinder 200 to rise and fall when it is retracted.
[0095] In this embodiment, when the motor base 410 moves along the motor track 400, it drives the third cylinder 230 and the first cylinder 200 to move synchronously. And when the third push rod 231 of the third cylinder 230 is raised or lowered, the motor track 400 does not rise or fall, and the first cylinder 200 is raised or lowered. Moreover, in the case where the anti-overflow device includes multiple first cylinders 200, a third cylinder 230 is provided under each first cylinder 200. In this way, the height of each first cylinder 200 can be independently adjusted by the corresponding third cylinder 230, which is more suitable for the case where the heights of multiple air vents 111 of the same specification door body 110 are different, such as Figure 5 shown.
[0096] Optionally, the third cylinder 230 is connected to an air supply device via a fourth pipe segment. This allows a single set of air supply devices to simultaneously supply air to the first cylinder 200, the second cylinder 220, and the third cylinder 230. Furthermore, the lengths of the first pipe segment 301 and the third pipe segment are adapted to the travel distance of the first cylinder 200.
[0097] Optionally, the third push rod 231 is arranged vertically; the anti-overflow device also includes a controller, which controls the vertical distance of movement of the first cylinder 200 according to the vertical position of the air vent 111 and through the third cylinder 230.
[0098] In this embodiment, the mold body 100 is positioned horizontally, and the door body 110 is also positioned horizontally after being placed on the mold body 100. The vertical positions of the air holes 111 of doors 110 of the same or different specifications may vary. The controller determines the vertical position of the air holes 111 based on the specifications of the door body 110, calculates the vertical distance that the first cylinder 200 needs to move, and finally drives the first cylinder 200 to move the vertical distance by the third cylinder 230, thereby reaching the first moving position.
[0099] Alternatively, as Figure 4 and Figure 5 As shown, a plurality of breathable rubber sleeves 211 are provided at the end of the first push rod 210, and the plurality of breathable rubber sleeves 211 are evenly spaced along the axial direction of the first push rod 210; and the diameters of the plurality of breathable rubber sleeves 211 gradually increase from the end to the head end of the first push rod 210.
[0100] In this embodiment, each breathable rubber sleeve 211 corresponds to a type of vent 111. By controlling the distance that the first push rod 210 extends into the vent 111, the appropriate breathable rubber sleeve 211 can be inserted into the vent 111. Furthermore, there are gaps between the multiple breathable rubber sleeves 211, and their diameters gradually increase from the distal end to the distal end of the first push rod 210. This allows a breathable rubber sleeve 211 to extend into a vent 111, while a larger-diameter one is positioned outside the door body 110, while a smaller-diameter one is positioned inside the door body 110. This does not affect the air permeability of the vent 111.
[0101] Optionally, the anti-overflow device further includes a controller, which controls the telescopic distance of the first push rod 210 according to the aperture of the air vent 111 and through the first cylinder 200.
[0102] In this embodiment, the diameters of the air holes 111 of door bodies 110 of the same or different specifications are not the same. The controller obtains the diameter of the air holes 111 according to the specifications of the door body 110, and then calculates the distance that the first push rod 210 needs to extend. Finally, the first cylinder 200 drives the first push rod 210 to extend the distance, so that the corresponding breathable rubber sleeve 211 is extended into the air hole 111.
[0103] It can be seen that the refrigerator door foaming mold of the above embodiment can achieve the technical effect of preventing overflow of materials for doors 110 of the same or different specifications, and the horizontal position, vertical position and aperture of the air vent 111 are the same or different, thereby greatly improving production efficiency.
[0104] It should be noted that the scope of protection of this application should include any alternative technical solutions that can be thought of by those skilled in the art without creative work, such as using a hydraulic cylinder instead of a pneumatic cylinder, using a lead screw instead of a push rod, etc.
[0105] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A refrigerator door foaming mold, characterized in that: include: A mold body (100) is used to place a door body (110) with a vent hole (111); The anti-overflow device comprises a guide rail assembly and a first cylinder (200); the extension direction of the guide rail assembly is located on one side of the air vent (111), and the first cylinder (200) can move along the guide rail assembly; The first cylinder (200) includes a retractable first push rod (210), and a breathable rubber sleeve (211) is provided at the end of the first push rod (210); the first cylinder (200) has a first moving position, and the first moving position corresponds to the retractable direction of the first push rod (210) toward the breathable hole (111); when the first cylinder (200) moves to the first moving position, the first push rod (210) can drive the breathable rubber sleeve (211) to extend into the breathable hole (111), thereby preventing overflow.
2. The refrigerator door foaming mold according to claim 1, characterized in that: The rail assembly includes: The motor track (400) is mounted on the mold body (100) and is located on one side of the air vent (111); A linear motor includes a motor base (410), wherein the motor base (410) is mounted on a motor track (400) and is movable along the motor track (400); Furthermore, the first cylinder (200) is mounted on the motor base (410).
3. The refrigerator door foaming mold according to claim 2, characterized in that: The motor track (400) is arranged horizontally; the anti-overflow device further comprises: The controller controls the horizontal distance of movement of the first cylinder (200) through the linear motor according to the horizontal position of the air vent (111).
4. The refrigerator door foaming mold according to claim 2, characterized in that: The anti-overflow device also includes: The lifting assembly is used to drive the first cylinder (200) to move up and down.
5. The refrigerator door foaming mold according to claim 4, characterized in that: Both ends of the motor track (400) are provided with mounting supports (401); the lifting assembly comprises: A third air cylinder (230) is provided on the mold body (100) and includes a retractable third ejector rod (231); Furthermore, the two third cylinders (230) are respectively located below the two mounting supports (401), and the ends of the two third push rods (231) are respectively connected to the two mounting supports (401); when the two third push rods (231) are synchronously extended and retracted, they drive the motor track (400) to rise and fall synchronously.
6. The refrigerator door foaming mold according to claim 4, characterized in that: The lifting assembly includes: A third cylinder (230) is disposed on the motor base (410) and includes a retractable third push rod (231); Furthermore, the first cylinder (200) is installed at the end of the third push rod (231), and the third push rod (231) drives the first cylinder (200) to move up and down when it is extended or retracted.
7. The refrigerator door foaming mold according to claim 5 or 6, characterized in that: The third push rod (231) is arranged vertically; the anti-overflow device further comprises: The controller controls the vertical distance of movement of the first cylinder (200) according to the vertical position of the air vent (111) and through the third cylinder (230).
8. The refrigerator door foaming mold according to any one of claims 1 to 6, characterized in that: A plurality of breathable rubber sleeves (211) are provided at the end of the first push rod (210), and the plurality of breathable rubber sleeves (211) are evenly spaced along the axial direction of the first push rod (210); Furthermore, the diameters of the plurality of breathable rubber sleeves (211) gradually increase from the end toward the head end of the first push rod (210).
9. The refrigerator door foaming mold according to claim 8, characterized in that: The anti-overflow device also includes: The controller controls the telescopic distance of the first push rod (210) according to the aperture of the air vent (111) and through the first cylinder (200).
10. The refrigerator door foaming mold according to any one of claims 1 to 6, characterized in that: The anti-overflow device also includes an air supply component, which includes: A first adapter (300) is connected to the first cylinder (200) through a first pipe section (301); The second adapter (310) is connected to the gas supply equipment through the second pipe section (311); Furthermore, when the first adapter (300) and the second adapter (310) are docked, the air supply device sequentially supplies air to the first cylinder (200) through the second pipe section (311) and the first pipe section (301).
11. The refrigerator door foaming mold according to claim 10, characterized in that: The mold body (100) is movably arranged, and the first adapter (300) is arranged on the mold body (100); the air supply component further includes: The second cylinder (220) includes a retractable second push rod (221), and the second adapter (310) is arranged at the end of the second push rod (221); The mold body (100) has a second movable position, which corresponds to the first adapter (300) and the second adapter (310); and when the mold body (100) moves to the second movable position, the second push rod (221) can drive the second adapter (310) to connect with the first adapter (300).