Seat cushion material mold

Abstract

The embodiment of the invention provides a seat cushion material mold. The mold comprises a movable mold plate, a fixed mold plate, a plurality of movable mold cores, a plurality of fixed mold cores, a mold plate support, a movable mold quick-change frame and a fixed mold quick-change frame, the movable template and the fixed template are arranged in parallel; the multiple mold moving cores are connected to the side, facing the fixed mold plate, of the mold moving plate, and the periphery of the mold moving plate is fixedly connected with a mold moving quick-changing frame. The multiple fixed mold cores are connected to the side, facing the movable mold plate, of the fixed mold plate, the periphery of the fixed mold plate is fixedly connected with a fixed mold quick-changing frame, and the fixed mold quick-changing frame surrounds the fixed mold plate and the multiple fixed mold cores to form a surrounding structure; the fixed mold cores are matched with the corresponding movable mold cores in a one-to-one correspondence manner to form independent cavities for synchronously forming a plurality of seat cushion materials; the mold plate support comprises a first fixing frame set and a second fixing frame set, the side, away from the movable mold plate, of the fixed mold plate is fixedly connected to the second fixing frame set, the side, away from the fixed mold plate, of the movable mold plate is connected with the first fixing frame set, and the mold is used for achieving the effect of improving the production efficiency.

Description

Technical Field

[0001] This application relates to the field of vehicle seat technology, and more particularly to a seat cushion material mold. Background Technology

[0002] As the rail transit industry places increasing demands on the comfort and safety of vehicle seats, the production quality and efficiency of the internal foam support structure of seat cushions have become crucial.

[0003] Traditional foaming molds use multi-dimensional single-mold molding, meaning that only one product is produced intelligently at a time. However, single-mold production cannot meet the large-volume demand for rail transit vehicle seats. Summary of the Invention

[0004] This application provides a seat cushion material mold to improve the production efficiency of seat cushion materials.

[0005] In a first aspect, embodiments of this application provide a seat cushion material mold, comprising: a moving template (1), a fixed template (2), multiple moving template cores (3), multiple fixed template cores (4), a template support (5), a moving template quick-change frame (6), a fixed template quick-change frame (7), a moving template steam frame (8), and a fixed template steam frame (9); the moving template (1) and the fixed template (2) are arranged parallel to each other; multiple moving template cores (3) are all connected to the side of the moving template (1) facing the fixed template (2), and the moving template (1) is fixedly connected to the periphery of the moving template (1), the moving template quick-change frame (6) surrounds the moving template (1) and the multiple moving template cores (3) to form an enclosing structure; multiple fixed template cores (4) are all connected to the side of the fixed template (2) facing the moving template (1), and the fixed template (2) is fixedly connected to the periphery of the fixed template (2), the fixed template quick-change frame (7 ...4) surround the moving template (1) and the multiple moving template cores (4) surround the moving template (1) and the multiple moving template cores (5) surround the moving template (1) and the multiple moving template cores (6) surround the moving template (1) and The fixed template (2) and multiple fixed mold cores (4) form an enclosing structure; each fixed mold core (4) is matched with the corresponding moving mold core (3) to form an independent cavity for simultaneously molding multiple seat cushion materials; the moving mold steam frame (8) is fixedly connected to the side away from the fixed template (2) and surrounds the periphery of the moving mold quick change frame (6) to guide steam to circulate on the moving mold side; the fixed mold steam frame (9) is fixedly connected to the side away from the moving template (1) and surrounds the periphery of the fixed mold quick change frame (7) to guide steam to circulate on the fixed mold side; the template support (5) includes a first fixed frame group (51) and a second fixed frame group (52), the side of the fixed template (2) away from the moving template (1) is fixedly connected to the second fixed frame group (52), and the side of the moving template (1) away from the fixed template (2) is connected to the first fixed frame group (51).

[0006] Optionally, it also includes: a base plate (10) and a steam reduction frame (11); the base plate (10) is fixedly connected to the first fixed frame group (51); the steam reduction frame (11) is located outside the base plate (10) and is set inside the mold transfer steam frame (8), surrounding the outer edge of the mold transfer quick change frame (6); the inner edge of the steam reduction frame (11) is fixedly connected to the outer edge of the mold transfer quick change frame (6), and the outer edge of the steam reduction frame (11) is connected to the inner edge of the mold transfer steam frame (8), the three of which enclose a constrained flow space for steam and compressed air on the mold transfer side.

[0007] Optionally, it also includes: a plurality of fixed mold side pins (12) and a plurality of moving mold side pins (13); the plurality of fixed mold side pins (12) are distributed at intervals along the inner edge of the fixed mold plate (2) and are fixedly connected to the side of the fixed mold plate (2) facing the moving mold plate (1), and the axis of the fixed mold side pins (12) is parallel to the mold closing direction of the plurality of moving mold cores (3) and the plurality of fixed mold cores (4); the plurality of moving mold side pins (13) are distributed at intervals along the inner edge of the moving mold plate (1) and are fixedly connected to the side of the moving mold plate (1) facing the fixed mold plate (2), and the axis of the moving mold side pins (13) is parallel to the mold closing direction of the plurality of moving mold cores (3) and the plurality of fixed mold cores (4); projected along the direction of the fixed mold plate (2), the plurality of moving mold side pins (13) and the plurality of fixed mold side pins (12) are staggered, and the center distance between any two adjacent pins is equal.

[0008] Optionally, it also includes: a mold cooling spray water pipe (14); the mold cooling spray water pipe (14) is located on the outside of the second fixed frame group (52) and on the side of the moving template (1) facing the fixed template (2); the mold cooling spray water pipe (14) has a multi-group interconnected ring-shaped branch pipe structure, each branch pipe extends in a direction parallel to the fixed template (2), and adjacent branch pipes are connected by connecting pipes to form an enclosure covering the outer area of ​​the mold core (4); spray heads are installed on the mold cooling spray water pipe (14) at preset distances along the length direction, and the spray direction of the spray heads is towards the outer wall of the mold core (4); the mold cooling spray water pipe (14) is used to spray cooling water onto the mold core (4) to achieve uniform cooling of the seat cushion material after the independent cavity is formed.

[0009] Optionally, it also includes: a mold-moving cooling spray water pipe (15); the mold-moving cooling spray water pipe (15) is located on the outside of the first fixed frame group (51) and on the side of the fixed template (2) facing the mold-moving template (1); the mold-moving cooling spray water pipe (15) includes an outer loop pipe and branch pipes respectively located in the top area, middle area and bottom area of ​​the mold-moving template (1); the outer loop pipe forms a loop around the outer perimeter of the mold-moving template (1), and the branch pipes are connected to the outer loop pipe to cool the mold core (3) in different areas of the mold-moving template (1); spray heads are installed at preset distances along the length direction on the mold-moving cooling spray water pipe (15), and the spray direction of the spray heads is towards the outer wall of the mold core (3) in the corresponding area.

[0010] Optionally, the base plate (10) and the transfer plate (1) are provided with a plurality of ejector pin outlet holes (16) and a plurality of material gun receiving holes (17); the plurality of ejector pin outlet holes (16) are distributed in a matrix along the periphery of the transfer mold core (3), and the ejector pin outlet holes (16) on the base plate (10) and the ejector pin outlet holes (16) on the transfer plate (1) are coaxially corresponding to each other, forming a columnar channel that penetrates the base plate (10) and the transfer plate (1); the plurality of material gun receiving holes (17) are distributed in a ring along the periphery of the transfer mold core (3), and correspond one-to-one with the injection ports of the plurality of transfer mold cores (3), and the material gun receiving holes (17) on the base plate (10) and the material gun receiving holes (17) on the transfer plate (1) are axially aligned.

[0011] Optionally, the outer surfaces of the multiple moving mold cores (3) and the multiple fixed mold cores (4) are coated with a corrosion-resistant low surface energy coating; the side of the moving mold (1) facing the fixed mold (2) and the side of the fixed mold (2) facing the moving mold (1) are both provided with a Teflon coating.

[0012] Optionally, multiple mold cores (3) are distributed in multiple layers along the row direction parallel to the surface of the mold plate (1), and are arranged symmetrically along the column direction with the longitudinal center line of the mold plate (1) as the axis of symmetry; the top area of ​​the mold plate (1) is provided with 2 mold cores (3), and the 2 mold cores are symmetrically distributed on both sides of the longitudinal center line; the middle area of ​​the mold plate (1) is provided with 4 mold cores (3), and the 4 mold cores (3) are symmetrically distributed with the longitudinal center line as the axis of symmetry; the bottom area of ​​the mold plate (1) is provided with 4 mold cores (3), and the 4 mold cores (3) are symmetrically distributed with the longitudinal center line as the axis of symmetry.

[0013] Optionally, multiple air plugs are provided on the inner walls of both the quick-change mold transfer frame (6) and the quick-change mold base frame (7); the multiple air plugs are evenly distributed along the perimeter of the quick-change mold transfer frame (6), and each air plug is tightly connected to the quick-change mold transfer frame (6); the multiple air plugs are evenly distributed along the perimeter of the quick-change mold base frame (7), and each air plug is tightly connected to the quick-change mold base frame (7).

[0014] Optionally, multiple positioning pins are installed on one side edge of multiple moving mold cores (3) facing multiple fixed mold cores (4), and multiple positioning guide sleeves are installed on one side edge of multiple fixed mold cores (4) facing multiple moving mold cores (3); the number of multiple positioning pins corresponds one-to-one with the number of multiple positioning guide sleeves, the multiple positioning pins are symmetrically distributed along the edge of the moving mold plate (1), and the multiple positioning guide sleeves are symmetrically distributed along the edge of the fixed mold plate (2); when multiple moving mold cores (3) and multiple fixed mold cores (4) are closed, the multiple positioning pins on the multiple moving mold cores (3) are inserted into the positioning guide sleeves on the multiple fixed mold cores (4) one-to-one.

[0015] The seat cushion material mold provided in this application embodiment can simultaneously form multiple seat cushion materials through multiple sets of one-to-one corresponding mold cores on the moving mold plate and the fixed mold plate, which greatly improves the production efficiency of seat cushion materials. In addition, the steam reduction frame, together with the mold quick change frame and the mold steam frame, forms a constrained flow space for steam and compressed air on the mold moving side, which effectively reduces the cavity space during the molding or blowing process, avoids the waste problem of multiple steam and compressed gas entering and exiting, and accelerates the pressure building and depressurization speed, reduces pressure lag, and reduces the energy consumption of steam and compressed air. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] Figure 1 Top view of the seat cushion material mold transfer side provided in the embodiments of this application. Figure 1 ;

[0018] Figure 2 This is a top view of the fixed mold side of the seat cushion material mold provided in the embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the installation of the mold moving cooling spray water pipe provided in the embodiments of this application;

[0020] Figure 4 A side view of the seat cushion material mold provided in the embodiments of this application;

[0021] Figure 5 Top view of the seat cushion material mold transfer side provided in the embodiments of this application. Figure 2 .

[0022] Figure label:

[0023] 1-Moving template; 2-Fixed template; 3-Moving core; 4-Fixed core; 5-Template support; 6-Moving quick-change frame; 7-Fixed quick-change frame; 8-Moving steam frame; 9-Fixed steam frame; 10-Base plate; 11-Steam reduction frame; 12-Fixed side pin; 13-Moving side pin; 14-Fixed cooling spray pipe; 15-Moving cooling spray pipe; 16-Ejector rod through hole; 17-Material gun receiving hole; 51-First fixed frame group; 52-Second fixed frame group.

[0024] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0025] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0026] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as "connected to" or "laid on" another component, it can be directly connected to or indirectly connected to the other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0029] To clearly understand the technical solution of this application, the existing technology solutions will first be described in detail. With the rapid development of the rail transit industry, the requirements for the comfort and safety of vehicle seats are increasing. The internal support structure of the seat cushion is made of EPP foam material. As an important component of the seat, the quality and production efficiency of this support structure directly affect the performance and production cost of the entire seat. Currently, existing seat cushion support molds on the market use single-mold molding, which suffers from many problems such as low production efficiency, high energy consumption of steam and compressed air, long cooling time, and difficulty in demolding, making it difficult to meet the production needs of rail transit vehicle seat cushions.

[0030] To address the aforementioned technical problems, the inventors conceived of a multi-mold integration approach to solve the low efficiency of single-mold molding. This involves arranging multiple mold cores adapted to different parts of the seat cushion material on the same mold plate, allowing multiple cavities to be formed simultaneously. A moving mold plate and a fixed mold plate were designed, with multiple moving mold cores and fixed mold cores connected to opposite sides of the moving and fixed mold plates, forming independent cavities. This enables the production of multiple parts with a single mold closing, fundamentally improving production efficiency. Regarding the high energy consumption of steam and compressed air, the inventors analyzed and found that the steam flow cavity in traditional molds was too large, resulting in slow pressure build-up and depressurization due to multiple steam inflows and outflows. Therefore, they devised a structure to constrain the flow space. A steam-reducing frame was installed on the moving mold side, surrounding the quick-change frame and forming a closed steam flow area with the base plate and moving mold steam frame. By reducing the steam's effective space, ineffective losses of steam and compressed air are reduced, while simultaneously accelerating pressure build-up and lowering energy consumption. To address the problem of difficult demolding, the inventors, after studying traditional molds, discovered that the pin structure is concentrated on the fixed mold side, resulting in significantly greater friction on the fixed mold side than on the moving mold side, and the padding material easily sticking to the fixed mold core. Based on this, the inventors proposed a staggered pin distribution scheme, placing the pins on both the fixed mold side and the moving mold side, arranging them alternately along the inner edge of the quick-change frame, so that the friction on both sides is evenly matched during mold closing, thus making demolding smoother.

[0031] The technical solution of this application and how it solves the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0032] refer to Figures 1 to 2 , Figure 1 Top view of the seat cushion material mold transfer side provided in the embodiments of this application. Figure 1 .like Figure 1 As shown, the seat cushion material mold includes: a transfer template (1), multiple transfer cores (3), a first fixing frame group (51), a transfer quick change frame (6), and a transfer steam frame (8). Figure 2This is a top view of the fixed mold side of the seat cushion material mold provided in an embodiment of this application. Figure 2 As shown, the seat cushion material mold also includes: a fixed template (2), multiple fixed mold cores (4), a second fixed frame group (52), a fixed mold quick change frame (7), and a fixed mold steam frame (9).

[0033] The moving template (1) and the fixed template (2) are set in parallel.

[0034] In this embodiment, the moving template (1) and the fixed template (2) are made of corrosion-resistant, high-strength thick metal plates.

[0035] Multiple positioning pins are installed on one side edge of multiple moving mold cores (3) facing multiple fixed mold cores (4), and multiple positioning guide sleeves are installed on one side edge of multiple fixed mold cores (4) facing multiple moving mold cores (3); the number of multiple positioning pins and multiple positioning guide sleeves are one-to-one, the multiple positioning pins are symmetrically distributed along the edge of the moving mold plate (1), and the multiple positioning guide sleeves are symmetrically distributed along the edge of the fixed mold plate (2); when multiple moving mold cores (3) and multiple fixed mold cores (4) are closed, the multiple positioning pins on the multiple moving mold cores (3) are inserted into the positioning guide sleeves on the multiple fixed mold cores (4) one-to-one.

[0036] In this embodiment, a plurality of positioning pins are installed around each mold moving core (3) on the side edge of the mold moving core (3) facing the fixed mold core (4), and a plurality of positioning guide sleeves are installed around each fixed mold core (4) on the side edge of the fixed mold core (4) facing the mold moving core (3). The number of positioning pins on each mold moving core (3) is the same, and the number of positioning guide sleeves on the corresponding fixed mold core (4) of each mold moving core (4) is also the same.

[0037] Multiple mold cores (3) are connected to the side of the mold plate (1) facing the fixed mold plate (2). The outer periphery of the mold plate (1) is fixedly connected to the mold quick-change frame (6). The mold quick-change frame (6) surrounds the mold plate (1) and the multiple mold cores (3) to form an enclosing structure.

[0038] Multiple fixed mold cores (4) are connected to the side of the fixed template (2) facing the moving template (1). The outer periphery of the fixed template (2) is fixedly connected to a fixed mold quick-change frame (7). The fixed mold quick-change frame (7) surrounds the fixed template (2) and multiple fixed mold cores (4) to form an enclosing structure.

[0039] The outer surfaces of multiple moving mold cores (3) and multiple fixed mold cores (4) are coated with corrosion-resistant low surface energy coatings; Teflon coatings are provided on the side of the moving mold (1) facing the fixed mold (2) and the side of the fixed mold (2) facing the moving mold (1).

[0040] In this embodiment, the multiple mold transfer cores (3) and multiple mold transfer cores (4) are all made of corrosion-resistant, high-strength metal casting and are surface-treated with corrosion-resistant, low-surface-energy coatings. The multiple mold transfer cores (3) are connected to the side of the mold transfer template (1) facing the fixed template (2), and the multiple fixed mold cores (3) are connected to the fixed template (2). Teflon coatings are applied to both the side of the mold transfer template (1) facing the fixed template (2) and the side of the fixed template (2) facing the mold transfer template (1).

[0041] Multiple mold cores (3) are distributed in multiple layers along the row direction parallel to the surface of the mold plate (1), and are arranged symmetrically along the column direction with the longitudinal center line of the mold plate (1) as the axis of symmetry; two mold cores (3) are provided in the top area of ​​the mold plate (1), and the two mold cores are symmetrically distributed on both sides of the longitudinal center line; four mold cores (3) are provided in the middle area of ​​the mold plate (1), and the four mold cores (3) are symmetrically distributed with the longitudinal center line as the axis of symmetry; four mold cores (3) are provided in the bottom area of ​​the mold plate (1), and the four mold cores (3) are symmetrically distributed with the longitudinal center line as the axis of symmetry.

[0042] Multiple air plugs are provided on the inner walls of both the quick-change mold transfer frame (6) and the quick-change mold stationary frame (7); the multiple air plugs are evenly distributed along the perimeter of the quick-change mold transfer frame (6), and each air plug is tightly connected to the quick-change mold transfer frame (6); the multiple air plugs are evenly distributed along the perimeter of the quick-change mold stationary frame (7), and each air plug is tightly connected to the quick-change mold stationary frame (7).

[0043] In this embodiment, a grooved air plug with a diameter of 10 mm and a groove width of 0.6 mm is used. When the local area of ​​the inner wall of the quick-change mold transfer frame (6) and the quick-change mold fixing frame (7) is small, a needle-type air plug can be used with a hole diameter of 0.5 mm. The center distance between the air plugs is 20 mm. The air plugs are installed firmly and will not easily fall off during the production process.

[0044] Each fixed mold core (4) and the corresponding moving mold core (3) are matched one by one to form an independent cavity for simultaneously molding multiple seat cushion materials.

[0045] The mold-moving steam frame (8) is fixedly connected to the side away from the fixed template (2) and surrounds the periphery of the mold-moving quick-change frame (6) to guide steam to circulate on the mold-moving side.

[0046] The fixed mold steam frame (9) is fixedly connected to the side away from the moving mold plate (1) and surrounds the periphery of the fixed mold quick change frame (7) to guide steam to circulate on the fixed mold side.

[0047] The template support (5) includes a first fixed frame group (51) and a second fixed frame group (52). The side of the fixed template (2) away from the moving template (1) is fixedly connected to the second fixed frame group (52), and the side of the moving template (1) away from the fixed template (2) is connected to the first fixed frame group (51).

[0048] Continue to refer to Figure 2 The seat cushion material mold also includes: a mold cooling spray water pipe (14). The mold cooling spray water pipe (14) is located on the outside of the second fixed frame group (52) and on the side of the moving template (1) facing the fixed template (2). The mold cooling spray water pipe (14) has a multi-group interconnected ring-shaped branch pipe structure. Each branch pipe extends in a direction parallel to the fixed template (2). Adjacent branch pipes are connected by connecting pipes to form a enclosure covering the outer area of ​​the mold core (4). Spray heads are installed on the mold cooling spray water pipe (14) at preset distances along the length direction. The spray direction of the spray heads is towards the outer wall of the mold core (4). The mold cooling spray water pipe (14) is used to spray cooling water onto the mold core (4) to achieve uniform cooling of the seat cushion material after the independent cavity is formed.

[0049] In this embodiment, the mold cooling spray water pipe (14) is located on the outside of the second fixed frame group (52), that is, on the side of the moving template (1) facing the fixed template (2), and the second fixed frame group (52) supports the mold cooling spray water pipe (14).

[0050] Continue to refer to Figure 2 The seat cushion material mold also includes a mold-moving cooling spray pipe (15). The mold-moving cooling spray pipe (15) is located on the outside of the first fixed frame group (51) and on the side of the fixed template (2) facing the moving template (1). The mold-moving cooling spray pipe (15) includes an outer ring pipe and branch pipes respectively located in the top area, middle area and bottom area of ​​the moving template (1). The outer ring pipe forms a ring around the outer perimeter of the moving template (1), and the branch pipes are connected to the outer ring pipe to cool the mold core (3) in different areas of the moving template (1). Spray heads are installed at preset distances along the length of the mold-moving cooling spray pipe (15), and the spray direction of the spray heads is towards the outer wall of the mold core (3) in the corresponding area.

[0051] In this embodiment, Figure 3 This is a schematic diagram illustrating the installation of the mold-moving cooling spray water pipe provided in an embodiment of this application. Figure 3 As shown, the mold-moving spray water pipe (15) includes two paths: an outer loop pipe that forms a loop around the mold-moving template (1), and branch pipes located in the top, middle, and bottom areas of the mold-moving template (1) that overlap with the first fixed frame group (51). The mold-moving cooling spray water pipe (15) is fastened to the external equipment cooling water pump through a quick-connect fitting. After each spray head on the mold-moving cooling spray water pipe (15) is in operation, the spray angle should cover all mold cores (3), and the sprayed water mist should cross each other.

[0052] In this embodiment, the moving mold cooling spray pipe (15) and the fixed mold cooling spray pipe (14) are made of corrosion-resistant, high-strength, and thermally conductive metal pipes and nozzles.

[0053] As can be seen from the above embodiments, multiple seat cushion materials can be formed simultaneously by using multiple sets of one-to-one corresponding moving mold cores and fixed mold cores on the moving mold and fixed mold, which greatly improves the production efficiency of seat cushion materials.

[0054] refer to Figure 4 , Figure 4 A side view of the seat cushion material mold provided in an embodiment of this application. Figure 4 As shown, the seat cushion material mold also includes a base plate (10) and a steam reducing frame (11). The base plate (10) is fixedly connected to the first fixed frame group (51); the steam reducing frame (11) is located on the outside of the base plate (10) and is set on the inside of the mold moving steam frame (8), surrounding the outer edge of the mold moving quick change frame (6); the inner edge of the steam reducing frame (11) is fixedly connected to the outer edge of the mold moving quick change frame (6), and the outer edge of the steam reducing frame (11) is connected to the inner edge of the mold moving steam frame (8). The three together form a constrained flow space for steam and compressed air on the mold moving side.

[0055] In this embodiment, a corrosion-resistant and high-strength metal core material is used. Through appropriate metal processing techniques such as cutting and forging, the metal core material is processed into a specific shape so that it can cooperate with the base plate (10) to form a steam reduction frame (11) that effectively reduces the cavity space. The base plate is fixed to the first fixed frame group (51) by screws.

[0056] As can be seen from the above embodiments, the steam reduction frame, together with the quick-change mold transfer frame and the mold transfer steam frame, forms a constrained flow space for steam and compressed air on the mold transfer side, which effectively reduces the cavity space during the molding or blowing process, avoids the waste problem of multiple steam and compressed gas entering and exiting, accelerates the pressure building and depressurization speed, reduces pressure lag, and reduces the energy consumption of steam and compressed air.

[0057] In the embodiments provided in this application, the seat cushion material mold further includes a plurality of fixed mold side pins (12) and a plurality of moving mold side pins (13); the plurality of fixed mold side pins (12) are distributed at intervals along the inner edge of the fixed template (2) and are fixedly connected to the side of the fixed template (2) facing the moving template (1), and the axis of the fixed mold side pins (12) is parallel to the mold closing direction of the plurality of moving mold cores (3) and the plurality of fixed mold cores (4); the plurality of moving mold side pins (13) are distributed at intervals along the inner edge of the moving template (1) and are fixedly connected to the side of the moving template (1) facing the fixed template (2), and the axis of the moving mold side pins (13) is parallel to the mold closing direction of the plurality of moving mold cores (3) and the plurality of fixed mold cores (4); projected along the direction of the fixed template (2), the plurality of moving mold side pins (13) and the plurality of fixed mold side pins (12) are arranged in an alternating pattern, and the center distance between any two adjacent pins is equal.

[0058] In this embodiment, the moving mold side pins (13) and the fixed mold side pins are arranged in an alternating pattern and the center-to-center distance between any two adjacent pins is equal.

[0059] As can be seen from the above embodiments, when projected along the direction of the fixed mold plate, the moving mold side pins (13) and the fixed mold side pins are arranged in an alternating pattern and the center distance between any adjacent pins is equal. This uniformly staggered layout can make the forces on the fixed mold side and the moving mold side more balanced when the mold is closed, effectively improving the problem that the friction force on the fixed mold side is large and the friction force on the moving mold side is small due to the concentration of pins on one side in traditional molds, making the forces on both sides more suitable when the product is demolded, and reducing the demolding resistance.

[0060] refer to Figure 5 , Figure 5 Top view of the seat cushion material mold transfer side provided in the embodiments of this application. Figure 2 .like Figure 5 As shown, the base plate (10) and the transfer mold plate (1) are respectively provided with multiple ejector pin outlet holes (16) and multiple material gun receiving holes (17). The multiple ejector pin outlet holes (16) are distributed in a matrix along the periphery of the transfer mold core (3). The ejector pin outlet holes (16) on the base plate (10) and the ejector pin outlet holes (16) on the transfer mold plate (1) are coaxially corresponding to each other, forming a columnar channel that penetrates the base plate (10) and the transfer mold plate (1). The multiple material gun receiving holes (17) are distributed in a ring along the periphery of the transfer mold core (3), and are corresponding to the injection ports of the multiple transfer mold cores (3). The material gun receiving holes (17) on the base plate (10) and the material gun receiving holes (17) on the transfer mold plate (1) are axially aligned.

[0061] In this embodiment, multiple ejector pin holes (16) are fitted with ejector pins. The ejector pins should be easy to install and ensure no steam leakage. If there are irregularly shaped ejector pins, the positions of the ejector pins need to be numbered. The ejector pin head and the rod body are fixed with pins, and the ejector pin surface is flush with the cavity. The material guns that fit with the multiple material gun receiving holes (17) are Kurtz standard material guns with a material gun head of 24mm, a height of 21mm, and a diameter of 50mm for the main body of the material gun. The material gun is fixedly installed with the base plate (10) and the moving template (1) through the flange. The size of the material gun flange matches the main structure of the material gun to prevent steam from leaking from the connection gap. When installing the flange, it must be fastened to the base plate (10) with bolts, and the bolts should be 35mm higher than the plane of the base plate (10). At the same time, ensure that the distance between the material gun flange and the outermost edge is at least 20mm. After the material gun is installed, the transition fit between the flange and the material gun is required to ensure that the material gun head is 0.5mm higher than the cavity plane. If the material gun is located on the slope, the lowest point of the material gun nozzle should be 0.5mm higher than the cavity surface. The material gun installation limit step on the reverse side of the cavity adopts a hollow structure.

[0062] As can be seen from the above embodiments, the matching design of the ejector pin through hole and ejector pin, the material gun receiving hole and material gun, and the flange of the seat cushion material mold can ensure production stability and product quality from the two core links of material injection and demolding.

[0063] In one specific embodiment provided in this application, the fixed template is made of domestically produced 5052 H112 aluminum alloy, with dimensions of 1798×1398×18mm. Countersunk screw holes are used for positioning around the fixed template, with a center-to-center distance of 100±0.25mm. The center-to-center hole distances on both sides are 1780±0.25mm and 1380±0.25mm, respectively. The sliding template is also made of domestically produced 5052 H112 aluminum alloy, with dimensions of 1798×1398×18mm, and uses countersunk screw holes for positioning. Its dimensions are the same as the fixed template. The base plate has dimensions of 1749.5±0.25×1349.5±0.25×25mm, and is made of domestically produced 5052 H112 aluminum alloy. M12 internal thread holes are opened around the base plate for mold locking. After the cavity is closed, the total height between the sliding template and the fixed template is 40mm. Four M16 threaded holes are also provided on the floor for easy hoisting. Directional arrows are added to the front of the fixed template and the moving template, and to the bottom of the base plate, to facilitate quick identification of the up and down directions during installation.

[0064] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A seat cushion material mold, characterized in that, The utility model relates to a mold plate set, including: Movable mold plate (1), fixed mold plate (2), a plurality of movable mold core (3), a plurality of fixed mold core (4), mold plate support (5), movable mold quick-change frame (6), fixed mold quick-change frame (7), movable mold steam frame (8) and fixed mold steam frame (9); The movable mold plate (1) is parallel with the fixed mold plate (2); The plurality of movable mold core (3) is connected in the movable mold plate (1) towards the fixed mold plate (2) one side, the periphery of movable mold plate (1) fixedly connected with movable mold quick-change frame (6), movable mold quick-change frame (6) surrounds movable mold plate (1) and the plurality of movable mold core (3) form the surrounding structure of the package; The plurality of fixed mold core (4) is connected in the fixed mold plate (2) towards the movable mold plate (1) one side, the periphery of fixed mold plate (2) fixedly connected with fixed mold quick-change frame (7), fixed mold quick-change frame (7) surrounds fixed mold plate (2) and the plurality of fixed mold core (4) form the surrounding structure of the package; Each fixed mold core (4) and corresponding movable mold core (3) one-to-one corresponding cooperation, form for the independent cavity of synchronous forming a plurality of seat cushion material; The movable mold steam frame (8) is fixedly connected on the side away from the fixed mold plate (2), and surrounds the periphery of the movable mold quick-change frame (6), for guiding steam circulation in movable mold side; The fixed mold steam frame (9) is fixedly connected on the side away from the movable mold plate (1), and surrounds the periphery of the fixed mold quick-change frame (7), for guiding steam circulation in fixed mold side; The mold plate support (5) includes first fixed frame group (51) and second fixed frame group (52), the fixed mold plate (2) away from the movable mold plate (1) one side is fixedly connected on the second fixed frame group (52), the movable mold plate (1) away from the fixed mold plate (2) one side is connected with the first fixed frame group (51).

2. The seat cushion mold of claim 1, wherein Also including: Bottom plate (10) and steam reduction frame (11); The bottom plate (10) is fixedly connected on the first fixed frame group (51); The steam reduction frame (11) is located on the outside of the bottom plate (10), and is arranged on the inside of the movable mold steam frame (8), surrounds the peripheral edge of the movable mold quick-change frame (6); The inside edge of the steam reduction frame (11) is fixedly connected with the peripheral edge of the movable mold quick-change frame (6), the outside edge of the steam reduction frame (11) is connected with the inside edge of the movable mold steam frame (8), and the three are enclosed to form the constraint flow space of the movable mold side steam and compressed air.

3. The seat cushion mold of claim 1, wherein Also including: A plurality of fixed mold side bolts (12) and a plurality of movable mold side bolts (13); The plurality of fixed mold side bolts (12) are spaced apart along the inside edge of the fixed mold plate (2), and are fixedly connected to the side of the fixed mold plate (2) facing the movable mold plate (1), the axis of the fixed mold side bolt (12) is parallel to the closing direction of the plurality of movable mold core (3) and the plurality of fixed mold core (4). The plurality of side pin bolts (13) are spaced apart along the inner edge of the movable mold plate (1) and fixedly connected to the side of the movable mold plate (1) facing the fixed mold plate (2), and the axis of the plurality of side pin bolts (13) is parallel to the closing direction of the plurality of movable mold cores (3) and the plurality of fixed mold cores (4); The plurality of side pin bolts (13) and the plurality of fixed mold side pin bolts (12) are staggered along the direction of the fixed mold plate (2), and the center distance between any two adjacent pin bolts is equal.

4. The seat cushion mold of claim 1, wherein Further comprising: A fixed mold cooling spray water pipe (14); The fixed mold cooling spray water pipe (14) is arranged outside the second fixed frame group (52) and on the side of the movable mold plate (1) facing the fixed mold plate (2); The fixed mold cooling spray water pipe (14) has a plurality of groups of annular branch pipes in communication with each other, each branch pipe extends in a direction parallel to the fixed mold plate (2), adjacent branch pipes are connected in communication through connecting pipes, and the outer peripheral area of the fixed mold core (4) is enclosed and covered. The fixed mold cooling spray water pipe (14) is provided with a spray head at a preset distance along the length direction, and the spray direction of the spray head is towards the outer wall of the fixed mold core (4). The fixed mold cooling spray water pipe (14) is used for spraying cooling water to the fixed mold core (4) to achieve uniform cooling of the molded seat cushion material of the independent cavity.

5. The seat cushion mold of claim 1, wherein Further comprising: A movable mold cooling spray water pipe (15); The movable mold cooling spray water pipe (15) is arranged outside the first fixed frame group (51) and on the side of the fixed mold plate (2) facing the movable mold plate (1); The movable mold cooling spray water pipe (15) comprises a peripheral loop pipe and branch pipes arranged at the top region of the movable mold plate (1), the middle region of the movable mold plate (1) and the bottom region of the movable mold plate (1) respectively; The peripheral loop pipe forms a loop around the periphery of the movable mold plate (1), and the branch pipes are in communication with the peripheral loop pipe to cool the movable mold cores (3) in different regions of the movable mold plate (1); The movable mold cooling spray water pipe (15) is provided with a spray head at a preset distance along the length direction, and the spray direction of the spray head is towards the outer wall of the movable mold core (3) in the corresponding region.

6. The seat cushion mold of claim 2, wherein, The bottom plate (10) and the movable mold plate (1) are provided with a plurality of ejection pin passing holes (16) and a plurality of material gun accommodating holes (17) corresponding thereto; The plurality of ejection pin passing holes (16) are arranged in a matrix along the periphery of the movable mold core (3), and the ejection pin passing holes (16) on the bottom plate (10) are coaxially corresponding to the ejection pin passing holes (16) on the movable mold plate (1) one by one, forming a columnar channel penetrating through the bottom plate (10) and the movable mold plate (1); The plurality of material gun accommodating holes (17) are arranged in a ring along the periphery of the movable mold core (3) and correspond to the injection ports of the plurality of movable mold cores (3) one by one, and the material gun accommodating holes (17) on the bottom plate (10) are axially aligned with the material gun accommodating holes (17) on the movable mold plate (1).

7. The seat cushion mold of claim 1, wherein, The outer surfaces of the plurality of movable mold cores (3) and the plurality of fixed mold cores (4) are coated with corrosion-resistant low-surface-energy paint. The side of the movable mold plate (1) facing the fixed mold plate (2) and the side of the fixed mold plate (2) facing the movable mold plate (1) are both provided with a Teflon coating.

8. The seat cushion mold of claim 1, wherein, The plurality of movable mold cores (3) are distributed in multiple layers along the row direction parallel to the plate surface of the movable mold plate (1) and are symmetrically arranged along the column direction with the longitudinal center line of the movable mold plate (1) as the axis of symmetry. The top region of the movable mold plate (1) is provided with two movable mold cores (3), which are symmetrically distributed on both sides of the longitudinal center line. The middle region of the movable mold plate (1) is provided with four movable mold cores (3), which are symmetrically distributed about the longitudinal center line. The bottom region of the movable mold plate (1) is provided with four movable mold cores (3), which are symmetrically distributed about the longitudinal center line.

9. The seat cushion mold of claim 1, wherein, The inner walls of the movable mold quick-change frame (6) and the fixed mold quick-change frame (7) are both provided with a plurality of air plugs. The plurality of air plugs are uniformly distributed along the circumference of the movable mold quick-change frame (6), and each air plug is tightly connected with the movable mold quick-change frame (6). The plurality of air plugs are uniformly distributed along the circumference of the fixed mold quick-change frame (7), and each air plug is tightly connected with the fixed mold quick-change frame (7).

10. The seat cushion mold of claim 1, wherein, The side edges of the plurality of movable mold cores (3) facing the plurality of fixed mold cores (4) are provided with a plurality of positioning pins, and the side edges of the plurality of fixed mold cores (4) facing the plurality of movable mold cores (3) are correspondingly provided with a plurality of positioning guide sleeves. The number of the plurality of positioning pins corresponds to the number of the plurality of positioning guide sleeves, the plurality of positioning pins are symmetrically distributed along the edges of the movable mold plate (1), and the plurality of positioning guide sleeves are symmetrically distributed along the edges of the fixed mold plate (2). When the plurality of movable mold cores (3) and the plurality of fixed mold cores (4) are closed, the plurality of positioning pins on the plurality of movable mold cores (3) are inserted into the positioning guide sleeves on the plurality of fixed mold cores (4) one by one.

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