Die capable of being quickly remodeled
By using a mold design with a fixed frame and a movable replacement plate, and employing a magnetic connection and positioning device to achieve rapid replacement, the problem of mold disassembly and assembly is solved when refrigerator models are different but have similar shapes and specifications, thus improving production efficiency.
Patent Information
- Application Number
- CN202511992491.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-03-03
AI Technical Summary
In the existing technology, when producing foam layers for different refrigerator models but with similar shapes and specifications, it is necessary to replace the entire foaming mold, which results in long disassembly and assembly time, high manpower consumption, and reduced production efficiency.
The mold design includes a fixed frame and multiple sets of movable replacement plates. The movable replacement plates can be quickly replaced with the fixed frame through magnetic connection and positioning device, reducing mold disassembly and assembly, and only replacing different parts of the foam layer.
In the production process of refrigerators with different models but similar shapes and specifications, quick mold changeover reduces mold assembly and disassembly time, improves production efficiency, and saves time and labor intensity.
Smart Images

Figure CN121589971A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of refrigerator foaming molds, specifically, it relates to a mold that can be quickly changed. Background Technology
[0002] There are numerous refrigerator models, and while different models share similar shapes and specifications, current production processes require each model to use a separate complete foaming mold for manufacturing the foam layer. This necessitates disassembling the mold for the first model and replacing it with the mold for the second model, due to the large number of mold components. This process is time-consuming and labor-intensive. Therefore, reducing mold disassembly and assembly and improving production efficiency during the alternating production of foam layers for refrigerators with different models but similar shapes and specifications is an urgent problem that needs to be solved.
[0003] In view of this, the present invention is proposed. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a mold that can be quickly changed. In the process of alternating production of refrigerator foam layers of different models but similar shapes and specifications, the disassembly and assembly of the mold can be reduced and the production efficiency can be improved.
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:
[0006] A mold that allows for quick mold changeover includes a fixed frame and multiple sets of movable replacement plates. One set of the movable replacement plates is connected to the fixed frame and located on the forming side of the mold.
[0007] Furthermore, the forming side of the mold is composed of a fixed plate frame side and a movable replacement plate side, or the forming side of the mold is composed of a movable replacement plate side.
[0008] Furthermore, the movable replacement board is connected to the fixed board frame via magnets.
[0009] Furthermore, the inner side of the movable replacement plate is provided with a magnetic attraction fixing plate, and a corresponding magnet is provided on the fixing plate frame.
[0010] Furthermore, a first positioning device is provided on the inner side of the movable replacement plate, and a corresponding matching second positioning device is provided on the fixed plate frame.
[0011] Furthermore, a temperature control tube is installed on the fixed plate frame, and the temperature control tube is located inside the fixed plate frame.
[0012] Furthermore, the temperature control tube and the magnet do not overlap.
[0013] Furthermore, the temperature control tubes are distributed in multiple locations within the overlapping area of the movable replacement plate and the fixed plate frame, and a continuously bent temperature control tube is provided on each side of the mold.
[0014] Furthermore, the magnets are ring magnets, and are distributed in multiple locations within the overlapping area of the movable replacement plate and the fixed plate frame.
[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.
[0016] This invention provides a mold capable of rapid mold changeover, comprising a fixed frame and multiple sets of movable replacement plates. One set of the movable replacement plates is connected to the fixed frame and located on the forming side of the mold. In the alternating production of refrigerator foam layers of different models but similar shapes and specifications, only the movable replacement plates of the mold need to be used to replace different parts to form a new mold forming side, reducing mold disassembly and assembly and improving production efficiency.
[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description
[0018] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:
[0019] Figure 1 This is a schematic diagram of the mold for rapid shape change according to the present invention;
[0020] Figure 2 This is a schematic diagram of the mold with quick shape change capability of the present invention, with the movable replacement plate on the left side removed;
[0021] Figure 3 This is a schematic diagram of the movable replacement plate on the left side of the mold that allows for rapid shape change according to the present invention;
[0022] Figure 4 This is a schematic diagram of the mold of the present invention that can be quickly changed without the movable replacement plate on the left side and the fixed plate on the left side of the forming side.
[0023] Figure 5 This is a schematic diagram of the magnet arrangement of the mold for quick shape change according to the present invention;
[0024] Figure 6 This is a schematic diagram of the mold with quick shape change capability of the present invention, without the movable replacement plate on the top surface;
[0025] Figure 7This is a schematic diagram of the movable replacement plate on the top surface of the mold that enables rapid shape change according to the present invention.
[0026] 1. Mold; 2. Fixing plate frame; 21. Left side forming side fixing plate; 22. Left inner layer fixing plate; 23. Top side forming side fixing plate; 24. Top inner layer fixing plate; 3. Movable replacement plate; 31. Left side movable replacement plate; 32. Top side movable replacement plate; 4. Magnet; 40. Magnet cover plate; 41. Iron plate; 51. First positioning device; 52. Second positioning device; 53. Positioning side; 6. Temperature control tube.
[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0029] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only to facilitate the description of this invention and to simplify 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 limiting this invention.
[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0031] The quick-change mold, when in use, fits the refrigerator outer shell (excluding the door) onto the mold. Gaps exist between the front, back, left, right sides, and top surface of the refrigerator outer shell (i.e., the back when the refrigerator is standing upright) and the corresponding sides of the mold. Foaming material is injected into these gaps to form a foam layer. The inner surface shape of the foam layer is formed by the molding side of the mold. The refrigerator outer shell and the foam layer are then separated from the mold, and the refrigerator liner is installed inside the foam layer, thus forming a combination of the refrigerator liner, foam layer, and outer shell. Since refrigerators of similar models have identical inner liner sections, this quick-change mold, as described in this application, saves on mold manufacturing, assembly, and foam layer production processes and strength, and improves production efficiency. When producing refrigerator foam layers with identical shapes, only the mold corresponding to different parts of the foam layer needs to be replaced; the molds corresponding to other identical parts of the foam layer are not disassembled and replaced, thereby improving work efficiency.
[0032] Combination Figure 1-7 As shown, the mold of the present invention, which can be quickly changed, includes a fixed plate frame and multiple sets of movable replacement plates. One set of the multiple sets of movable replacement plates is connected to the fixed plate frame and located on the forming side of the mold.
[0033] The fixed frame includes a fixed bracket and a fixed plate. The fixed bracket acts as a skeleton to support the entire mold, while the fixed plate is fixed to the outside of the fixed bracket. The fixed plate is a plate that is not removed during the mold's operation, not one that is impossible to remove. The fixed plate consists of two parts: a molding side fixed plate, which is the molding side that contacts the foaming material during the foaming process; and an inner fixed plate, which is connected to the fixed bracket. A movable replacement plate is also connected to the outside of the inner fixed plate, covering the inner fixed plate from the outside.
[0034] The molding side of the mold is composed of a fixed plate frame side and a movable replacement plate side. In other words, the molding side of the mold is formed by the outer side of the fixed molding side plate and the outer side of the movable replacement plate. This situation occurs when different models, such as two refrigerator models, have identical foam molding sides during foam layer manufacturing. Therefore, these identical sides do not need to be replaced with a movable replacement plate; only one molding side plate is needed to complete the foam layer manufacturing.
[0035] Alternatively, the molding side of the mold may consist of the side of a movable replacement plate; that is, the molding side of the mold may consist of the outer side of the movable replacement plate. This situation occurs when the shape of one side (e.g., the left side) of the foam layer in different refrigerators is completely different, in which case the left molding side of the corresponding mold may consist of the outer side of the movable replacement plate.
[0036] For example, the fixed plate frame 2 includes a fixed frame, a left side forming fixed plate 21, a left inner layer fixed plate 22, a top side forming fixed plate 23, and a top inner layer fixed plate 24.
[0037] The inner side of the movable replacement plate is equipped with a magnetically attached fixing plate, and a corresponding magnet is installed on the fixing plate frame. The magnets are ring magnets, and are distributed in multiple locations within the overlapping area of the movable replacement plate and the fixing plate frame.
[0038] The movable replacement plate is connected to the inner fixed plate in the fixed plate frame via magnets. Because the mold's sheet metal is made of aluminum to reduce weight, an iron plate is installed inside the movable replacement plate, such as... Figure 3 As shown, an iron plate is installed on the inner side of the movable replacement plate on the left side as a fixing plate for the movable replacement plate. A through hole is provided on the inner fixing plate, and a magnet is placed inside the through hole. A magnet cover is provided outside the magnet to fix the magnet to the fixing frame. An iron plate is placed on the outer side of the whole formed by the magnet and the magnet cover. This whole is installed on the fixing frame and located within the through hole of the inner fixing plate. The iron plate on the inner side of the movable replacement plate corresponds to the iron plate outside the magnet and is attracted by the magnet, thus making the movable replacement plate fit against the inner fixing plate. The iron plate increases the attraction area and improves the attraction force. To ensure that the movable replacement plate and the inner fixing plate are aligned, a protrusion is provided on the inner side of the movable replacement plate as a first positioning device, and a corresponding groove is provided on the outer side of the inner fixing plate as a second positioning device. The protrusion is embedded in the groove, thereby ensuring that the movable replacement plate and the inner fixing plate are aligned. Multiple first positioning devices are provided, and correspondingly, multiple second positioning devices are provided, so that the positioning and limiting between the movable replacement plate and the inner layer fixing plate are accurate and stable, preventing the movable replacement plate and the inner layer fixing plate from being misaligned due to uneven force during the foaming process.
[0039] To ensure smooth flow of the foaming material during foaming and guarantee the quality of the foamed layer, temperature control tubes are installed on the fixed frame, located inside the frame. The temperature control tubes do not overlap with the magnets. Temperature control tubes are located on each side of the mold, and each side's temperature control tube is individually controlled. The temperature control tubes can be water pipes or other temperature-controlled media pipelines.
[0040] The temperature control tubes are distributed in multiple locations within the overlapping area of the movable replacement plate and the fixed plate frame, with one continuously bent temperature control tube on each side of the mold. The temperature control tubes are folded around the magnet.
[0041] like Figure 6 , 7As shown, on the top surface of the mold, the inner layer fixing plate has positioning sides around its perimeter, while the inner side of the movable replacement plate has a frame-shaped groove. The groove walls form positioning sides. After the movable replacement plate is fastened onto the inner layer fixing plate, the positioning sides of both provide perimeter positioning, ensuring alignment between the movable replacement plate and the inner layer fixing plate. This prevents foaming defects caused by misalignment when replacing the movable replacement plate. Similarly, as mentioned earlier, a magnet, a magnet cover plate, and an iron plate are also provided on the top of the mold fixing frame, located within the through-hole of the inner layer fixing plate. An iron plate is also provided on the inner side of the movable replacement plate, allowing it to be fastened onto the inner layer fixing plate via the magnet and the iron plate.
[0042] To maintain a stable connection between the movable replacement plate and the inner fixing plate, the magnets are arranged as evenly as possible without interfering with other structural elements. Circular ring magnets are used to avoid attraction and repulsion between adjacent magnets, thus ensuring a stable connection between the movable replacement plate and the inner fixing plate.
[0043] For example, when using the quick-change mold described in this application, in producing the first type of refrigerator foam layer, a first set of movable replacement plates 31 on the left side and 32 on the top side are used. When producing the second type of refrigerator foam layer, the first set of movable replacement plates 31 on the left side and 32 on the top side are removed and replaced with a second set of movable replacement plates 31 on the left side and 32 on the top side. Only the movable replacement plates 31 on the left side and 32 on the top side need to be removed and installed; the entire mold set does not need to be disassembled and reinstalled, saving time, reducing labor intensity, and improving efficiency. The above example does not limit the movable replacement of plates on other sides of the mold; it can be done as needed.
[0044] This invention provides a mold capable of rapid mold changeover, comprising a fixed frame and multiple sets of movable replacement plates. One set of the movable replacement plates is connected to the fixed frame and located on the forming side of the mold. In the alternating production of refrigerator foam layers of different models but similar shapes and specifications, only the movable replacement plates of the mold need to be used to replace different parts to form a new mold forming side, reducing mold disassembly and assembly and improving production efficiency.
[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.
Claims
1. A mold capable of rapid shape change, characterized in that: It includes a fixed plate frame and multiple sets of movable replacement plates, one of which is connected to the fixed plate frame and located on the forming side of the mold.
2. A mold capable of rapid shape change, characterized in that: The forming side of the mold is composed of a fixed plate frame side and a movable replacement plate side, or the forming side of the mold is composed of a movable replacement plate side.
3. The mold capable of rapid shape change according to claim 2, characterized in that: The movable replacement board is connected to the fixed board frame by magnets.
4. The mold capable of rapid shape change according to claim 3, characterized in that: The inner side of the movable replacement plate is equipped with a magnetic attraction plate, and a corresponding magnet is installed on the fixing plate frame.
5. The mold capable of rapid form change according to any one of claims 1-4, characterized in that: A first positioning device is provided on the inside of the movable replacement plate, and a corresponding matching second positioning device is provided on the fixed plate frame.
6. The mold capable of rapid shape change according to claim 5, characterized in that: A temperature control tube is installed on the fixed plate frame, and the temperature control tube is located inside the fixed plate frame.
7. The mold capable of rapid shape change according to claim 6, characterized in that: The temperature control tube and the magnet do not overlap.
8. The mold capable of rapid form change according to claim 7, characterized in that: The temperature control tubes are distributed in multiple locations within the overlapping area of the movable replacement plate and the fixed plate frame, and a continuously bent temperature control tube is installed on each side of the mold.
9. The mold capable of rapid shape change according to claim 3, characterized in that: The magnets are ring magnets, and are distributed in multiple locations within the overlapping area of the movable replacement plate and the fixed plate frame.