Foaming and shaping tool and door body foaming and shaping device formed by foaming and shaping tool

Abstract

The utility model provides a foaming and shaping tool and a door body foaming and shaping device formed by the foaming and shaping tool, which are used for shaping a foaming frame, an extrusion molding strip is arranged on the outer side of each surface in the foaming frame, and a gap is formed between every two adjacent extrusion molding strips; the foaming shaping tool comprises protection plates located on the outer sides of the extrusion molding strips, the protection plates correspond to the extrusion molding strips one to one, and the protection plates abut against the outer sides of the corresponding extrusion molding strips. Every two adjacent protection plates are fixedly connected with each other. The position of the extrusion molding strip is fixed through the protection plate, it is ensured that the position of the extrusion molding strip is constant in the foaming process, and then the consistency of the appearance size of a foaming forming structure is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of foaming and shaping, in particular to a foaming and shaping tool and a door body foaming and shaping device formed by the tool. Background Art

[0002] The small door inside the low-temperature storage box currently produced is composed of four extruded strips of low-temperature resistant PP material, sprayed sheet metal brackets, and front and rear hot-dip galvanized plates. The assembled model needs to be foamed and filled with foam by a foam laminator and then solidified inside to achieve the effect of heat preservation and constant temperature.

[0003] Among them, four extruded strips are respectively arranged on the outside of four sheet metal brackets, and the four sheet metal brackets are connected end to end to form a foaming frame; after placing the extruded strips on the outer peripheral side of each sheet metal bracket of the foaming frame, the hot-dip galvanized sheet is assembled on the two vacant surfaces. Because the four extruded strips of low-temperature resistant PP material have no assembly structure, seamless assembly cannot be effectively guaranteed during assembly and splicing. At the same time, due to the extrusion molding and corner cutting processing methods, the consistency of the corner cutting of the extruded strips is poor, and it is difficult to ensure seamlessness at the corner cutting joints. During the foaming process, the foaming raw materials inside the small door react with each other to produce high-temperature and high-pressure gas, and the foaming material reacts to expand internally. Because there is no structural connection on the outside of the external extruded strip, the assembly gap consistency at the corner cutting joints is poor, and there is a gap between the inside and the assembly surface of the sheet metal bracket. The high-temperature and high-pressure gas reacted by the foaming raw materials and the expansion of the foaming material easily cause the extruded strip to expand due to heat, thereby failing to guarantee the appearance size of the small door.

[0004] The small door formed by foaming needs to be installed in the low-temperature storage box body accordingly. If the overall size of the small door is deformed after foaming, when the small door is installed inside the low-temperature storage box body, the shape of the door cannot be adapted to the small door assembly space in the box body, resulting in difficulty in installing the small door and failure to ensure the effectiveness of the small door's insulation. Utility Model Content

[0005] In order to overcome the problems existing in the related technology, one of the purposes of the utility model is to provide a foaming shaping tool, which fixes the position of the extruded strip through a protective plate to ensure that the position of the extruded strip is constant during the foaming process, thereby ensuring the consistency of the appearance size of the foamed molded structure.

[0006] A foaming shaping tool is used to shape a foaming frame, wherein an extruded strip is arranged on the outer side of each surface of the foaming frame, and there is a gap between adjacent extruded strips; the foaming shaping tool comprises a protective plate located on the outer side of the extruded strip, the protective plate corresponds to the extruded strip one by one, and the protective plate abuts against the outer side of the corresponding extruded strip; adjacent protective plates are fixedly connected to each other in pairs.

[0007] In the present application, the foaming frame is surrounded by a sheet metal bracket, and an extruded strip is attached to the outside of the sheet metal bracket. There is a gap between the extruded strip and the sheet metal. When the foaming liquid enters, it will expand and increase the gap, causing overall deformation. The foaming shaping tool in the present application is surrounded by a protective plate, which is made of high-temperature resistant and non-deformable aluminum alloy material with high hardness. Even under large stress, it can retain its shape.

[0008] In a preferred technical solution of the utility model, at least one protective plate is slidably connected to an adjacent protective plate.

[0009] In the present application, at least one protective plate is slidably connected to an adjacent protective plate, which means that the positions of the protective plates can be changed relative to each other, but when used to shape the foam frame, the protective plates are fixed. This sliding connection can be used to shape foam frames of different models and sizes. For example, in the same series of doors or windows, the foam frames corresponding to different models only differ in the size of one side. In this case, the position of the protective plate can be adjusted by sliding, so that the shaping tool is applicable to doors and windows of the same series but of different models.

[0010] In a preferred technical solution of the utility model, a blocking hole is provided in the foaming frame, and an avoidance hole is provided in the protective plate, and the avoidance hole corresponds to the position of the blocking hole.

[0011] In a preferred technical solution of the utility model, a blocking column is provided in the avoidance hole, the outer diameter of the blocking column is equal to the inner diameter of the blocking hole, and the size of the avoidance hole is larger than the size of the blocking hole.

[0012] During the foaming process, the plugging hole needs to be sealed by a plugging column. Correspondingly, an avoidance hole corresponding to the plugging hole position is provided in the anti-slip plate. The purpose of the avoidance hole is to avoid the plugging column. The protective plate here refers to the protective plate corresponding to the sheet metal bracket where the plugging hole is provided.

[0013] In a preferred technical solution of the utility model, the foaming frame includes four sheet metal brackets connected end to end, and the protective plate includes a first protective plate, a second protective plate, a third protective plate and a fourth protective plate, and the first protective plate, the second protective plate, the third protective plate and the fourth protective plate are connected end to end to form a protective cavity.

[0014] When the first protective plate, the second protective plate, the third protective plate and the fourth protective plate are connected end to end to form a protective cavity, the foaming shaping tool formed can only be applied to the foaming frame of the corresponding size. The protective plate is located outside the extruded strip and abuts against the extruded strip. The extruded strip is attached to the outside of the sheet metal bracket. The protective plate is made of high temperature resistant and non-deformable aluminum alloy material with high hardness. Even under large stress, it has shape retention.

[0015] In a preferred technical solution of the utility model, the first protective plate and the second anti-slide plate are arranged in parallel, and sliding grooves are respectively arranged on the opposite inner sides of the first protective plate and the second anti-slide plate; the two ends of the fourth protective plate are respectively located inside the two sliding grooves.

[0016] The slide grooves and the slidable fourth protective plate of the present application are all for adapting to foam frames of different sizes. When the size of the foam frame changes, the fourth protective plate slides along the slide groove to different positions and is fixed in the slide groove by fastening bolts, so that the size of the protection cavity formed by the first protective plate, the second protective plate, the third protective plate and the fourth protective plate is adapted to the size of the foam frame.

[0017] In a preferred technical solution of the present utility model, the slide groove is a rectangular groove; and the fourth protective plate is a rectangular structure.

[0018] The function of the rectangular groove is to prevent the protective plate from sliding in the slide. The gas released by the reaction of the foaming material can easily cause the extruded strip to expand and bulge due to heat. The extruded strip and the protective plate on the outside of the foaming frame will be subjected to outward stress. The two ends of the protective plate are fixed inside the slide by fastening bolts. The outward stress will cause the fastening bolts to loosen slightly. The degree of looseness is not enough to cause the protective plate to detach from the slide, but it is possible for the protective plate to rotate around the fastening bolts. If the protective plate is a cylindrical structure and the slide is a corresponding cylindrical structure, the protective plate may rotate around the fastening bolts. Once the protective plate is offset, its force on the extruded strip is no longer constant, and it cannot achieve the limiting effect on the extruded strip.

[0019] In a preferred technical solution of the utility model, a plurality of waist-shaped through holes are provided at the bottom of the slide groove, and the fourth protective plate is fixed in the waist-shaped through holes by fastening bolts.

[0020] The diameter of the waist-shaped hole is relatively large, and the position of the fourth protective plate in the waist-shaped hole can be fine-tuned. At the same time, the position of the waist-shaped hole is also set according to the foaming frames of different models and sizes. A waist-shaped hole is set at the corresponding position of each foaming frame of different models and sizes. The setting of the waist-shaped hole can simplify the fixing and loosening process between the fourth protective plate and the first anti-slip plate and the second protective plate. Through the cooperation of the waist-shaped hole and the fastening bolt, the fixing and loosening between the fourth protective plate and the first anti-slip plate and the second protective plate can be quickly achieved.

[0021] In a preferred technical solution of the present utility model, the depth of the slide groove is 5 mm.

[0022] The depth here refers to the distance from the top to the bottom of the rectangular groove. Setting this distance can ensure that the fourth protective plate is firmly connected to the first protective plate and the second protective plate. At the same time, the 5mm assembly size can prevent the fourth protective plate from rotating under stress, thereby ensuring that the fourth protective plate is fixed in position. Only when the fourth protective plate is fixed in position can the extruded strip on the outside of the foam frame be limited.

[0023] In the preferred technical solution of the utility model,

[0024] The second purpose of the utility model is to provide a door body foaming and shaping device, including a foaming and shaping tool as described above.

[0025] During the foaming process of the door body, protective plates are arranged one by one on the outside of the extruded strips mounted on the foaming frame, and adjacent protective plates are fixed together, that is, there is no gap between the protective plates, and the positions of the protective plates are constant. The protective plates limit the extruded strips, so that the extruded strips can always fit with the foaming frame during the foaming process, thereby ensuring that the appearance dimensions of the final door body are consistent.

[0026] The beneficial effects of the utility model are:

[0027] The utility model provides a foaming shaping tool for shaping a foaming frame, wherein an extruded strip is arranged on the outside of each surface of the foaming frame, and there is a gap between adjacent extruded strips; the foaming shaping tool includes a protective plate located on the outside of the extruded strip, the protective plate corresponds to the extruded strip one by one, and the protective plate abuts against the outside of the corresponding extruded strip; adjacent protective plates are fixedly connected to each other in pairs. In the present application, the extruded strip is mounted on the outside of the foaming frame. Since there is a gap between adjacent extruded strips, it is easy to deform during the foaming process. Therefore, the present application sets protective plates on the outside of the extruded strip mounted on the foaming frame in a one-to-one correspondence, and adjacent protective plates are fixed together, that is, there is no gap between the protective plates, and the position of the protective plates is constant. Through the limiting effect of the protective plates on the extruded strips, it can be ensured that the extruded strips are always in contact with the foaming frame during the foaming process, avoiding the problem of expansion and deformation of the extruded strips in the prior art.

[0028] The utility model also provides a door body foaming molding device including the above-mentioned foaming molding tool, which is used for foaming and molding the door body. During the door body foaming process, protective plates are arranged one by one on the outer sides of the extruded strips attached to the foaming frame, and adjacent protective plates are fixed together, that is, there is no gap between the protective plates, and the positions of the protective plates are constant. Through the limiting effect of the protective plates on the extruded strips, it can be ensured that the extruded strips are always fitted with the foaming frame during the foaming process, thereby ensuring that the appearance dimensions of the door body finally formed are consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1A top view of the foaming shaping tool of this application;

[0030] Figure 2 This is a side view of a foaming shaping tool of the present application;

[0031] Figure 3 Another side view of the foaming shaping tool of this application;

[0032] Figure 4 This is a schematic diagram of the structure of the foaming frame of this application;

[0033] Figure 5 This is a schematic diagram of the structure of the fourth protective plate and the slideway in this application;

[0034] Figure 6 This is a schematic diagram of the structure of the slide groove in the second protective plate in this application.

[0035] Reference numerals:

[0036] 11. Foam frame; 12. Extruded strip; 13. Fastening bolts; 14. Blocking holes; 15. Diagonal support frame; 21. First protective plate; 22. Second protective plate; 23. Third protective plate; 24. Fourth protective plate; 25. Slide groove; 26. Waist-shaped hole; 27. Blocking column. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0038] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0039] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] Example 1

[0041] like Figure 4 As shown, the foam frame 11 of the present application is surrounded by sheet metal brackets. For example, four sheet metal brackets are connected end to end to form a foam frame 11. An extruded strip 12 is attached to the outer side of the foam frame 11. Specifically, the extruded strip 12 can be a U-shaped structure. The U-shaped opening is nested in the upper and lower ends of the sheet metal bracket. In this way, the extruded strip 12 is in contact with three surfaces of the sheet metal bracket at the same time, and the opening is located in the middle position of the sheet metal bracket.

[0042] In the present application, the foam frame 11 may be a door body or a window structure. Since the shape of the foam frame 11 is determined by the final door body structure or window structure, the sheet metal brackets surrounding the foam frame 11 are fixed together.

[0043] The extruded strips 12 are mounted on the outside of the sheet metal bracket. When the foaming frame 11 includes four sheet metal brackets, there are also four extruded strips 12, which are mounted one by one on the outside of the sheet metal bracket. There is no fixed connection between adjacent extruded strips 12, and there are gaps. The foaming laminator foams and fills the inside. Due to the reaction of the foaming material, high-temperature and high-pressure gas is released inside. The foaming material causes the foaming area inside the sheet metal bracket to expand. There is a gap between the foaming area and the assembly surface of the sheet metal bracket. The gas released by the reaction of the foaming material can easily cause the extruded strips 12 to expand and bulge due to heat. There is no structural connection at the four corners of the external extruded strips 12, and the consistency of the assembly gap at the corner cutting joint is poor. It is impossible to effectively ensure seamless splicing during assembly. At the same time, due to the extrusion molding and corner cutting processing methods, the incoming corner cutting consistency of the extruded strips 12 is poor, and it is difficult to ensure seamlessness at the corner cutting joint. During the foaming process, the foaming raw materials in the foaming area react with each other to produce high-temperature, high-pressure gas, so that the appearance size of the foamed doors and windows and the gap at the corner joint of the extruded strip 12 cannot be controlled.

[0044] like Figure 1-Figure 3 As shown, in order to solve the above problems, the foaming shaping tool of the present application includes a protective plate located on the outside of the extruded strip 12, the protective plate corresponds to the extruded strip 12 one by one, and the protective plate abuts against the outer side of the corresponding extruded strip 12; adjacent protective plates are fixedly connected to each other.

[0045] In the present application, the extruded strips 12 are mounted on the outer side of the foaming frame 11. Since there are gaps between adjacent extruded strips 12, they are easily deformed during the foaming process. Therefore, in the present application, protective plates are arranged one by one on the outer side of the extruded strips 12 mounted on the foaming frame 11, and adjacent protective plates are fixed together, that is, there are no gaps between the protective plates, and the positions of the protective plates are constant. The protective plates limit the extruded strips 12, so as to ensure that the extruded strips 12 are always in contact with the foaming frame 11 during the foaming process, thereby avoiding the problem of expansion and deformation of the extruded strips 12 in the prior art.

[0046] Example 2

[0047] like Figure 1-Figure 6 As shown, the foaming shaping tool provided in the present application is used to shape the foaming frame 11, and an extruded strip 12 is arranged on the outer side of each surface of the foaming frame 11, and there is a gap between adjacent extruded strips 12; the foaming shaping tool includes a protective plate located on the outer side of the extruded strip 12, and the protective plate corresponds to the extruded strip 12 one by one, and the protective plate abuts against the outer side of the corresponding extruded strip 12; adjacent protective plates are fixedly connected to each other in pairs.

[0048] Furthermore, at least one protective plate is slidably connected to an adjacent protective plate.

[0049] In the present application, at least one protective plate is slidably connected to an adjacent protective plate, which means that the positions of the protective plates can be changed relative to each other, but when used to shape the foam frame 11, the protective plates are fixed. This sliding connection can be used to shape foam frames 11 of different models and sizes. For example, for doors or windows of the same series, the foam frames 11 corresponding to different models differ only in the size of one side. In this case, the position of the protective plate can be adjusted by sliding, so that the shaping tool is applicable to doors and windows of the same series but of different models.

[0050] The specific number of sliding protective plates can be set according to the structure of the foam frame 11. For example, when the foam frame 11 is a rectangular structure surrounded by four sheet metal frames, one of the protective plates can be set to be able to slide. At the same time, the protective plate adjacent to the protective plate is set in the form of a slide groove 25, so that the two ends of the protective plate can slide along the slide groove 25.

[0051] Furthermore, the slide groove 25 of the present application is arranged in the opposite sides of the two relative protective plates, and the slide groove 25 is a rectangular groove structure. Correspondingly, the slidable protective plate located between the two protective plates is also a rectangular structure, ensuring that when the two ends of the protective plate are located in the slide groove 25, the shape of the slide groove 25 is adapted to the shape of the rectangular protective plate.

[0052] The purpose of the rectangular groove in the present application is to prevent the protective plate from sliding in the slide 25. The gas released by the reaction of the foaming material can easily cause the extruded strip 12 to expand and bulge due to heat. The extruded strip 12 and the protective plate outside the foaming frame 11 will also be subject to outward stress. The two ends of the protective plate are fixed inside the slide 25 by fastening bolts 13. The outward stress will cause the fastening bolts 13 to loosen slightly. The degree of looseness is not enough to cause the protective plate to detach from the slide 25, but it is possible that the protective plate rotates around the fastening bolts 13 as the axis. If the protective plate is a cylindrical structure and the slide 25 is a corresponding cylindrical structure, the protective plate may rotate around the fastening bolts 13 as the axis. Once the protective plate is offset, its force on the extruded strip 12 is no longer constant, and the extruded strip 12 cannot be limited.

[0053] Furthermore, a blocking hole 14 is provided in the foam frame 11 , and an avoidance hole is provided in the protective plate, and the avoidance hole corresponds to the position of the blocking hole 14 .

[0054] The plugging hole 14 is sealed by the plugging column during the foaming process; when the foaming materials inside the foaming frame 11 react with each other to produce high-temperature and high-pressure gas, the internal pressure or excess foaming materials are prevented from being discharged through the plugging hole, thereby avoiding problems such as unqualified foaming density and poor thermal insulation effect caused by a reduction in foaming volume.

[0055] A blocking column 27 is provided in the avoidance hole, and the outer diameter of the blocking column 27 is equal to the inner diameter of the blocking hole 14 . The size of the avoidance hole is larger than that of the blocking hole 14 .

[0056] During the foaming process, the blocking hole 14 needs to be sealed by the blocking column 27. Correspondingly, an avoidance hole corresponding to the position of the blocking hole 14 is provided in the anti-slip plate, and the purpose of the avoidance hole is to avoid the blocking column 27. The protective plate here refers to the protective plate corresponding to the sheet metal bracket where the blocking hole 14 is provided.

[0057] In the present application, the foaming frame 11 is surrounded by a sheet metal bracket, and an extruded strip is attached to the outside of the sheet metal bracket. There is a gap between the extruded strip and the sheet metal. When the foaming liquid enters, it will expand and increase the gap, resulting in overall deformation. The foaming shaping tool of the present application is surrounded by a protective plate, which is made of high temperature resistant and non-deformable aluminum alloy material, has a high hardness, and has shape retention even under large stress.

[0058] Example 3

[0059] The foaming shaping tool provided in the present application is used to shape a foaming frame 11, wherein an extruded strip 12 is arranged on the outer side of each surface of the foaming frame 11, and there is a gap between adjacent extruded strips 12; the foaming shaping tool includes a protective plate located on the outer side of the extruded strip 12, wherein the protective plate corresponds to the extruded strip 12 one by one, and the protective plate abuts against the outer side of the corresponding extruded strip 12; adjacent protective plates are fixedly connected to each other in pairs.

[0060] As a specific embodiment, Figure 4 As shown, the foam frame 11 of the present application includes four sheet metal brackets connected end to end, and the four sheet metal brackets surround the rectangular foam frame 11, and a diagonal support frame 15 is arranged inside the foam frame 11. At this time, the upper and lower surfaces of the rectangular foam frame 11 are notched, and hot-dip galvanized plates can be installed at the upper and lower notches to form a complete foam frame 11.

[0061] The top and bottom ends of the four sheet metal brackets are respectively provided with U-shaped extruded strips 12, and the extruded strips 12 on the outside of the four sheet metal brackets are separately provided, with gaps between them, and are not completely fitted together. The purpose of the protective plate in this application is to limit the position of the extruded strips 12 to prevent the extruded strips 12 from shifting in position under the action of internal foaming stress.

[0062] Correspondingly, the protective plate includes a first protective plate 21, a second protective plate 22, a third protective plate 23 and a fourth protective plate 24, and the first protective plate 21, the second protective plate 22, the third protective plate 23 and the fourth protective plate 24 are connected end to end to form a protective cavity.

[0063] When the first protective plate 21, the second protective plate 22, the third protective plate 23 and the fourth protective plate 24 are connected end to end to form a protective cavity, the foaming shaping tool formed can only be applied to the foaming frame 11 of the corresponding size. The protective plate is located outside the extruded strip 12 and abuts against the extruded strip 12. The extruded strip 12 is attached to the outside of the sheet metal bracket. The protective plate is made of high temperature resistant and non-deformable aluminum alloy material, with high hardness, and has shape retention even under large stress.

[0064] Further, such as Figure 1 As shown, the first protective plate 21 and the second anti-slide plate are arranged in parallel, and the inner sides of the first protective plate 21 and the second anti-slide plate relative to each other are respectively provided with slide grooves 25; the two ends of the fourth protective plate 24 are respectively located inside the two slide grooves 25.

[0065] In the present application, the first protective plate 21 and the second protective plate 22 are arranged in parallel, and the third protective plate 23 and the fourth protective plate 24 are arranged in parallel, wherein the two ends of the third protective plate 23 and the fourth protective plate 24 are fixedly connected to the first protective plate 21 and the second protective plate 22 respectively, so as to form a protective cavity between the first protective plate 21, the second protective plate 22, the third protective plate 23 and the fourth protective plate 24, and when the foaming frame 11 is placed in the protective cavity, the protective plate abuts against the extruded strip 12 on the outside of the foaming frame 11.

[0066] In the present application, the two ends of the fourth anti-slip plate are located in the inner grooves 25 relative to the first protective plate 21 and the second anti-slip plate; when the size of the foaming frame 11 is not determined, the fourth protective plate 24 can slide along the grooves 25. Once the size of the foaming frame 11 is determined, the position of the fourth protective plate 24 in the grooves 25 is determined. At this time, the two ends of the fourth protective plate 24 are fixed in the grooves 25 by fastening bolts 13. At this time, the positional relationship between the fourth protective plate 24 and the first protective plate 21 and the second protective plate 22 is fixed.

[0067] The slide groove 25 and the slidable fourth protective plate 24 of the present application are provided to adapt to different sizes of the foaming frame 11. When the size of the foaming frame 11 changes, the fourth protective plate 24 slides along the slide groove 25 to different positions and is fixed in the slide groove 25 by the fastening bolts 13, so that the size of the protection cavity formed by the first protective plate 21, the second protective plate 22, the third protective plate 23 and the fourth protective plate 24 is adapted to the size of the foaming frame 11.

[0068] Furthermore, the slide groove 25 is a rectangular groove; and the fourth protective plate 24 is a rectangular structure.

[0069] The function of the rectangular groove is to prevent the protective plate from sliding in the slide groove 25. The gas released by the reaction of the foaming material can easily cause the extruded strip 12 to expand and bulge due to heat. The extruded strip 12 and the protective plate outside the foaming frame 11 will also be subject to outward stress. The two ends of the protective plate are fixed inside the slide groove 25 by fastening bolts 13. The outward stress will cause the fastening bolts 13 to loosen slightly. The degree of looseness is not enough to cause the protective plate to detach from the slide groove 25, but it is possible that the protective plate rotates around the fastening bolts 13 as the axis. If the protective plate is a cylindrical structure and the slide groove 25 is a corresponding cylindrical structure, the protective plate may rotate around the fastening bolts 13 as the axis. Once the protective plate is offset, its force on the extruded strip 12 is no longer constant, and the extruded strip 12 cannot be limited.

[0070] Furthermore, a plurality of waist-shaped through holes are provided at the bottom of the slide groove 25 , and the fourth protective plate 24 is fixed in the waist-shaped through holes by fastening bolts 13 .

[0071] The diameter of the waist-shaped hole 26 is relatively large, and the position of the fourth protective plate 24 in the waist-shaped hole 26 can be finely adjusted. At the same time, the position of the waist-shaped hole 26 is also set according to the foaming frames 11 of different models and sizes. A waist-shaped hole 26 is set at the corresponding position of each model and size of the foaming frame 11. The waist-shaped hole 26 can simplify the fixing and loosening process between the fourth protective plate 24 and the first anti-slip plate and the second protective plate 22. Through the cooperation of the waist-shaped hole 26 and the fastening bolt 13, the fixing and loosening between the fourth protective plate 24 and the first anti-slip plate and the second protective plate 22 can be quickly achieved.

[0072] Preferably, the depth of the slide groove 25 described in the present application is 5 mm. The depth here refers to the distance from the top to the bottom of the rectangular parallelepiped groove. Setting this distance can ensure that the fourth protective plate 24 is tightly connected to the first protective plate 21 and the second protective plate 22. At the same time, the assembly size of 5 mm can prevent the fourth protective plate 24 from rotating under stress, thereby ensuring that the position of the fourth protective plate 24 is fixed. Only when the position of the fourth protective plate 24 is fixed can the extruded strip 12 outside the foam frame 11 be limited.

[0073] The third protective plate 23 in the present application can be arranged in the same manner as the fourth protective plate 24, that is, both ends of the third protective plate 23 are respectively fixed in the slide grooves 25 on the opposite sides of the first protective plate 21 and the second protective plate 22, and can slide in the slide grooves 25. The remaining structures are the same as the connection relationship of the fourth protective plate 24 described above, and are not described in detail here.

[0074] As another embodiment, in the present application, the two ends of the third protective plate 23 are fixedly connected to the first protective plate 21 and the second protective plate 22, that is, the sliding groove 25 is not provided at one end of the first protective plate 21 and the second protective plate 22, and the two ends of the third protective plate 23 are fixed to the first protective plate 21 and the second protective plate 22 by tightening the bolts 13. The sliding groove 25 is provided at the other end of the first protective plate 21 and the second protective plate 22, and the two ends of the fourth protective plate 24 are respectively fixed in the sliding groove 25 on the opposite side of the first protective plate 21 and the second protective plate 22.

[0075] In actual operation, since the third protective plate 23 and the fourth protective plate 24 slide and change the dimensions in the same direction, only one of the protective plates may be set to slide relative to the first protective plate 21 and the second protective plate 22 .

[0076] Example 4

[0077] like Figure 1-Figure 6 As shown, a door body foaming and shaping device is used to form a small door in a low-temperature storage box. Specifically, it includes a foaming and shaping tool and a foaming machine. The foaming and shaping tool is used to limit the extruded strip 12 outside the foaming frame 11.

[0078] An extruded strip 12 is arranged on the outer side of each surface of the foaming frame 11, and there is a gap between adjacent extruded strips 12; the foaming shaping tool includes a protective plate located on the outer side of the extruded strip 12, and the protective plate corresponds to the extruded strip 12 one by one, and the protective plate abuts against the outer side of the corresponding extruded strip 12; adjacent protective plates are fixedly connected to each other.

[0079] Specifically, the foam frame 11 includes four sheet metal brackets connected end to end, and the four sheet metal brackets surround the rectangular foam frame 11, and a diagonal support frame 15 is arranged inside the foam frame 11. At this time, the upper and lower surfaces of the rectangular foam frame 11 are notches, and hot-dip galvanized plates can be installed at the upper and lower notches to form the foam frame 11 of the small door.

[0080] The protective plate includes a first protective plate 21, a second protective plate 22, a third protective plate 23 and a fourth protective plate 24. The first protective plate 21 and the second protective plate 22 are arranged in parallel, and the third protective plate 23 and the fourth protective plate 24 are arranged in parallel, wherein both ends of the third protective plate 23 and the fourth protective plate 24 are fixedly connected to the first protective plate 21 and the second protective plate 22 respectively, thereby forming a protective cavity between the first protective plate 21, the second protective plate 22, the third protective plate 23 and the fourth protective plate 24, and when the foaming frame 11 is placed in the protective cavity, the protective plate abuts against the extruded strip 12 on the outside of the foaming frame 11.

[0081] The foam frame 11 is provided with a blocking hole 14, and the protective plate is provided with an avoidance hole, which corresponds to the position of the blocking hole 14. The avoidance hole is provided with a blocking column 27, and the outer diameter of the blocking column 27 is equal to the inner diameter of the blocking hole 14, and the size of the avoidance hole is larger than that of the blocking hole 14.

[0082] During the foaming process, the blocking hole 14 needs to be sealed by the blocking column 27. Correspondingly, an avoidance hole corresponding to the position of the blocking hole 14 is provided in the anti-slip plate, and the purpose of the avoidance hole is to avoid the blocking column 27. The protective plate here refers to the protective plate corresponding to the sheet metal bracket where the blocking hole 14 is provided.

[0083] When the blocking column 27 is a cylindrical structure with an outer diameter of 20 mm, the avoidance hole can be a cubic avoidance gap with a side length of 20 mm.

[0084] In the present application, the two ends of the fourth anti-slip plate are located in the inner grooves 25 relative to the first protective plate 21 and the second anti-slip plate; when the size of the foaming frame 11 is not determined, the fourth protective plate 24 can slide along the grooves 25. Once the size of the foaming frame 11 is determined, the position of the fourth protective plate 24 in the grooves 25 is determined. At this time, the two ends of the fourth protective plate 24 are fixed in the grooves 25 by fastening bolts 13. At this time, the positional relationship between the fourth protective plate 24 and the first protective plate 21 and the second protective plate 22 is fixed.

[0085] The slide groove 25 and the slidable fourth protective plate 24 of the present application are provided to adapt to different sizes of the foaming frame 11. When the size of the foaming frame 11 changes, the fourth protective plate 24 slides along the slide groove 25 to different positions and is fixed in the slide groove 25 by the fastening bolts 13, so that the size of the protection cavity formed by the first protective plate 21, the second protective plate 22, the third protective plate 23 and the fourth protective plate 24 is adapted to the size of the foaming frame 11.

[0086] The slide groove 25 is a rectangular groove; the fourth protection plate 24 is a rectangular structure.

[0087] The function of the rectangular groove is to prevent the protective plate from sliding in the slide groove 25. The gas released by the reaction of the foaming material can easily cause the extruded strip 12 to expand and bulge due to heat. The extruded strip 12 and the protective plate outside the foaming frame 11 will also be subject to outward stress. The two ends of the protective plate are fixed inside the slide groove 25 by fastening bolts 13. The outward stress will cause the fastening bolts 13 to loosen slightly. The degree of looseness is not enough to cause the protective plate to detach from the slide groove 25, but it is possible that the protective plate rotates around the fastening bolts 13 as the axis. If the protective plate is a cylindrical structure and the slide groove 25 is a corresponding cylindrical structure, the protective plate may rotate around the fastening bolts 13 as the axis. Once the protective plate is offset, its force on the extruded strip 12 is no longer constant, and the extruded strip 12 cannot be limited.

[0088] Furthermore, a plurality of waist-shaped through holes are provided at the bottom of the slide groove 25 , and the fourth protective plate 24 is fixed in the waist-shaped through holes by fastening bolts 13 .

[0089] The diameter of the waist-shaped hole 26 is relatively large, and the position of the fourth protective plate 24 in the waist-shaped hole 26 can be finely adjusted. At the same time, the position of the waist-shaped hole 26 is also set according to the foaming frames 11 of different models and sizes. A waist-shaped hole 26 is set at the corresponding position of each model and size of the foaming frame 11. The waist-shaped hole 26 can simplify the fixing and loosening process between the fourth protective plate 24 and the first anti-slip plate and the second protective plate 22. Through the cooperation of the waist-shaped hole 26 and the fastening bolt 13, the fixing and loosening between the fourth protective plate 24 and the first anti-slip plate and the second protective plate 22 can be quickly achieved.

[0090] Preferably, the depth of the slide groove 25 described in the present application is 5 mm. The depth here refers to the distance from the top to the bottom of the rectangular parallelepiped groove. Setting this distance can ensure that the fourth protective plate 24 is tightly connected to the first protective plate 21 and the second protective plate 22. At the same time, the assembly size of 5 mm can prevent the fourth protective plate 24 from rotating under stress, thereby ensuring that the position of the fourth protective plate 24 is fixed. Only when the position of the fourth protective plate 24 is fixed can the extruded strip 12 outside the foam frame 11 be limited.

[0091] In the present application, the two ends of the third protective plate 23 are fixedly connected to the first protective plate 21 and the second protective plate 22, that is, the sliding groove 25 is not required to be provided at one end of the first protective plate 21 and the second protective plate 22, and the two ends of the third protective plate 23 can be fixed together with the first protective plate 21 and the second protective plate 22 by tightening the bolts 13. The sliding groove 25 is provided at the other end of the first protective plate 21 and the second protective plate 22, and the two ends of the fourth protective plate 24 are respectively fixed in the sliding groove 25 on the opposite side of the first protective plate 21 and the second protective plate 22.

[0092] This application uses high temperature resistant and non-deformable aluminum alloy material through the imitation design to resist the deformation caused by the high temperature and high pressure generated by the reaction of the foaming material inside the small door, ensuring that the appearance of the small door is not deformed. The small doors of multiple models are positioned separately, and the waist hole design is used to prevent sliding to ensure the accuracy of the tooling, thereby achieving the consistency of the appearance size of the small door and ensuring the production qualification rate.

[0093] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings. In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0094] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0095] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0096] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A foaming shaping tool, used for shaping a foaming frame, wherein an extruded strip is arranged on the outside of each surface of the foaming frame, and there is a gap between adjacent extruded strips; characterized in that: The foaming shaping tool comprises a protective plate located outside the extrusion strip, the protective plate corresponds to the extrusion strip one by one, and the protective plate abuts against the outer side of the corresponding extrusion strip; adjacent protective plates are fixedly connected to each other in pairs.

2. A foaming shaping tool according to claim 1, characterized in that: At least one protection plate is slidably connected to an adjacent protection plate.

3. A foaming shaping tool according to claim 1, characterized in that: The foaming frame is provided with a blocking hole, and the protective plate is provided with an avoidance hole, and the avoidance hole corresponds to the position of the blocking hole.

4. A foaming shaping tool according to claim 3, characterized in that: A blocking column is arranged in the avoidance hole, the outer diameter of the blocking column is equal to the inner diameter of the blocking hole, and the size of the avoidance hole is larger than the size of the blocking hole.

5. A foaming shaping tool according to claim 1, characterized in that: The foaming frame includes four sheet metal brackets connected end to end, and the protective plate includes a first protective plate, a second protective plate, a third protective plate and a fourth protective plate, and the first protective plate, the second protective plate, the third protective plate and the fourth protective plate are connected end to end to form a protective cavity.

6. A foaming shaping tool according to claim 5, characterized in that: The first protective plate and the second anti-slide plate are arranged in parallel, and sliding grooves are respectively arranged on the inner sides of the first protective plate and the second anti-slide plate relative to each other; two ends of the fourth protective plate are respectively located inside the two sliding grooves.

7. A foaming shaping tool according to claim 6, characterized in that: The slide groove is a rectangular groove; the fourth protective plate is a rectangular structure.

8. A foaming shaping tool according to claim 6, characterized in that: A plurality of waist-shaped through holes are arranged at the bottom of the slide groove, and the fourth protective plate is fixed in the waist-shaped through holes by fastening bolts.

9. A foaming shaping tool according to claim 6, characterized in that: The depth of the slide groove is 5 mm.

10. A door body foaming and shaping device, characterized in that: A foaming shaping tool comprising any one of claims 1-9.

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