A supercritical foaming device for embryos

Abstract

This utility model discloses a supercritical foaming device for preforms, relating to the field of supercritical foaming. The device comprises a reactor and a foaming frame. The reactor has a accommodating space and a supercritical fluid flow channel. The accommodating space is used to accommodate the foaming frame, and the supercritical fluid flow channel connects to the accommodating space to introduce supercritical fluid for foaming the preform. The foaming frame is housed within the accommodating space and includes a frame body and at least two limiting members. Each limiting member is arranged vertically and connected to the frame body. Adjacent limiting members are further adjusted in position by fasteners to change the distance between them. The space between adjacent limiting members is suitable for accommodating the preform and limiting its deformation during foaming. Each limiting member has several through holes to increase the contact area between the preform and the supercritical fluid.

Description

Technical Field

[0001] This application relates to the field of supercritical foaming, specifically to a supercritical foaming device for embryos. Background Technology

[0002] With societal development, more and more people are engaging in sports. This has led to increased demands for lightweight, high-resilience, and environmentally friendly footwear. Supercritical foaming of the sole preform offers advantages such as light weight, excellent rebound and cushioning, durability, and environmental friendliness. Current supercritical foaming technology for sole preforms employs a hanging foaming method, where a suspension section is located at the rear of the sole preform and mounted on a foaming frame, suspending the preform. While this hanging method increases the contact area between the various parts of the sole preform and the supercritical fluid during the foaming process in the reactor, the foaming frame cannot effectively restrict the foaming process, resulting in excessive expansion of the sole preform in the vertical direction, leading to problems such as poor sole warping and deformation. Utility Model Content

[0003] The purpose of this application is to overcome the above-mentioned defects or problems in the prior art and to provide a supercritical foaming device for controlling the supercritical foaming of shoe sole preforms.

[0004] To achieve the above objectives, the following technical solution is adopted:

[0005] A supercritical foaming device for preforms includes a reactor and a foaming frame. The reactor has a accommodating space and a supercritical fluid flow channel. The accommodating space is used to accommodate the foaming frame, and the supercritical fluid flow channel is connected to the accommodating space to introduce supercritical fluid to foam the preform. The foaming frame is accommodated in the accommodating space and has a frame body and at least two limiting members. Each limiting member is arranged vertically and connected to the frame body. The positions of adjacent limiting members connected to the frame body are adjusted by fasteners to change the distance between them. The space between adjacent limiting members is suitable for accommodating the preform and restricting the deformation of the preform during the foaming process. The limiting members have several through holes to increase the contact area between the preform and the supercritical fluid.

[0006] Furthermore, the limiting member includes a support plate, with adjacent support plates arranged in parallel.

[0007] Furthermore, the limiting member includes a fixing seat, which is located below the support plate.

[0008] Furthermore, the fixed base is movably connected to the support plate.

[0009] Furthermore, the fixing base is located on both sides of the support plate.

[0010] Furthermore, the frame body is provided with a plurality of first fixing holes along the vertical direction, and the fixing seat is provided with a plurality of second fixing holes. The fasteners fasten the frame body and the fixing seat through the first fixing holes and the second fixing holes.

[0011] Furthermore, the through hole is located in the support plate.

[0012] Furthermore, the frame includes wheels located at the lower part of the frame.

[0013] Furthermore, the reactor includes an inlet and an outlet, which are located on the side of the reactor.

[0014] Compared with existing technologies, the above solution has the following beneficial effects:

[0015] The first technical solution involves a foaming frame comprising a frame body and at least two limiting members. The adjacent limiting members are adapted to accommodate the preform and restrict its deformation during the foaming process. One reason for problems such as poor warping and deformation in the sole preform during foaming is the excessive expansion of the preform in the vertical direction. The two adjacent limiting members restrict the deformation of the sole preform in the vertical direction, limiting excessive expansion, reducing warping and deformation, improving the yield of finished soles, and lowering production costs.

[0016] Supercritical foaming requires a uniform distribution of supercritical fluid within the preform body to ensure uniform foaming throughout the preform during the foaming process. For the supercritical fluid to be uniformly distributed within the preform body, it must maintain sufficient contact with all parts of the preform body; that is, the shoe sole preform needs to have sufficient contact with the supercritical fluid in the reactor. The limiting component in this technical solution has several through holes, allowing the supercritical fluid to pass through these holes and contact the shoe sole preform body as it flows within the reactor's containment space. The limiting component does not affect the contact between the supercritical fluid and the shoe sole preform body, nor does it affect the uniform distribution of the supercritical fluid within the preform body, thus not affecting the foaming process.

[0017] Different sizes of shoe soles have different thicknesses in the vertical direction. The position of the limiting components on the frame can be adjusted using fasteners, and the spacing between adjacent limiting components can be set to accommodate different shoe sole sizes. This avoids using a single foaming frame for every shoe sole size, improving the compatibility of the foaming frame and reducing production costs.

[0018] Each limiting component is arranged vertically. Existing suspended foaming technology requires a suspension section at the rear of the sole blank to connect to the frame. This new solution eliminates the need to suspend the sole blank on the foaming frame; it can be placed directly on the limiting components. Placing the sole blank on the limiting components eliminates the need for a suspension section, reduces the step of removing the suspension section after foaming, minimizes the impact of the suspension section on foaming, and lowers production costs.

[0019] The second technical solution includes a limiting component comprising a support plate, with adjacent support plates arranged in parallel. Several shoe sole blanks are placed between adjacent support plates. The parallel arrangement of the adjacent support plates ensures that the vertical spacing of each shoe sole blank placed between adjacent support plates is the same, and the limiting is also the same, guaranteeing the consistency of foaming and improving the yield rate.

[0020] The third technical solution includes a limiting component, a fixing seat, located below the support plate. The upper part of the support plate has a flat structure, which increases the ways in which the sole blanks can be placed on the support plate. More sole blanks can be placed on the support plate, increasing the number of sole blanks that the foaming frame can hold, increasing the number of foaming cycles, and reducing production costs.

[0021] The fourth technical solution involves a movable connection between the fixed base and the support plate. The shoe sole blank can be placed on the support plate, which is then positioned on top of the fixed base, improving work efficiency. Furthermore, when foaming shoe sole blanks of different specifications and adjusting the spacing between the support plates, the support plates can be removed before adjusting the fixed base. Adjusting the fixed base reduces the weight of the support plate and improves the ease of adjustment.

[0022] The fifth technical solution is that the fixing base is located on both sides of the support plate, and the support plate is supported on both sides, which improves the stability of the support plate and prevents the support plate from falling off the fixing base during the movement of the foaming frame.

[0023] The sixth technical solution involves a frame with several first fixing holes along its vertical direction, and a fixing seat with several second fixing holes. Fasteners secure the frame and fixing seat through the first and second fixing holes. This solution firmly fixes the fixing seat and frame, preventing loosening. Furthermore, the second fixing holes of the fixing seat can be adapted to different first fixing holes, allowing for convenient adjustment of the spacing between the support plates according to different sizes of shoe sole blanks.

[0024] The seventh technical solution is that the through hole is located on the support plate, and the shoe sole preform is placed on the support plate. Within the containment space of the reactor, supercritical fluid can enter the shoe sole preform from the bottom of the shoe sole preform through the through hole on the support plate without affecting the subsequent foaming.

[0025] The eighth technical solution is that the frame is equipped with wheels at the bottom to facilitate the movement of the foaming frame, and the shoe sole blank placed on the foaming frame is not easily moved when the foaming frame is moved.

[0026] The ninth technical solution is that the side of the reactor is provided with an inlet and outlet port for the foaming rack, which can be easily moved in and out of the reactor. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments, the accompanying drawings used are briefly described below:

[0028] Figure 1 This is a schematic diagram of the reaction vessel and the foaming rack;

[0029] Figure 2 This is a schematic diagram of a foaming rack;

[0030] Key reference numerals in the attached drawings: 1. Reactor; 11. Containing space; 12. Supercritical fluid channel; 13. Inlet / outlet; 2. Foaming rack; 21. Frame; 22. Support plate; 23. Fastener; 24. Fixing seat; 25. First fixing hole; 26. Second fixing hole; 27. Wheel; 28. Through hole. Detailed Implementation

[0031] Unless otherwise specified, the terms “first,” “second,” or “third,” etc., in the claims and description are used to distinguish different objects and not to describe a particular order.

[0032] Unless otherwise specified, in the claims and description, the terms “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “clockwise,” “counterclockwise,” etc., indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the purpose of simplifying the description, and do not imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation.

[0033] Unless otherwise specified in the claims and description, the terms "fixed connection" or "fixed connection" shall be interpreted broadly to mean any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection by other means or components.

[0034] Unless otherwise specified, the terms “comprising,” “having,” and variations thereof in the claims and description shall mean “including but not limited to.”

[0035] In the claims and description, unless otherwise specified, the term "have" means that a technical feature that follows is part of a technical feature that precedes it.

[0036] The technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings.

[0037] See Figure 1 , Figure 1 This is a supercritical foaming equipment for embryo materials. The supercritical foaming equipment for embryo materials includes a reactor 1 and a foaming rack 2.

[0038] The reactor 1 includes a containment space 11, a supercritical fluid channel 12, and an inlet / outlet 13. The foaming frame 2 enters the containment space 11 of the reactor 1 through the inlet / outlet 13. After sealing the reactor 1, the supercritical fluid enters the containment space 11 of the reactor 1 through the supercritical fluid channel 12. Inside the reactor 1, the supercritical fluid enters the interior of the shoe sole preform.

[0039] See Figure 2 , Figure 2 This is a schematic diagram of the foaming frame 2. The foaming frame 2 includes a frame body 21 and limiting members. The foaming frame 2 includes at least two limiting members, but in this embodiment, there are five limiting members. Each limiting member is arranged vertically and connected to the frame body 21. In this embodiment, the shoe sole blank does not need to be suspended on the foaming frame 2; it can be placed directly on the limiting members. The shoe sole blank does not need to have a suspension part, and the step of removing the suspension part after foaming is reduced. It also reduces the impact of the suspension part on foaming and lowers production costs.

[0040] The limiting components include a support plate 22 and a fixing seat 24. The support plate 22 is used to place the shoe sole blank, and the fixing seat 24 is used to fix and support the support plate 22 to the frame 21. The fixing seat 24 is located on both sides below the support plate 22, improving the stability of the support plate 22 and preventing the support plate 22 from falling off the fixing seat 24 during the movement of the foaming frame 2. The fixing seat 24 is located below the support plate 22, and the upper part of the support plate 22 has a flat structure, increasing the ways in which the shoe sole blank can be placed on the support plate 22. More shoe sole blanks can be placed on the support plate 22, increasing the number of shoe sole blanks that the foaming frame 2 can accommodate, increasing the number of foaming cycles, and reducing production costs. The support plate 22 and the fixing seat 24 are movably connected, allowing the shoe sole blank to be placed on the support plate 22 before placing the support plate 22 on top of the fixing seat 24, improving work efficiency.

[0041] The support plates 22 are arranged parallel to each other in the vertical direction. Several shoe sole blanks are placed between adjacent support plates 22. The parallel arrangement of adjacent support plates 22 ensures that the spacing between each shoe sole blank placed between adjacent support plates 22 in the vertical direction is the same, and the restrictions are also the same, which ensures the consistency of foaming and improves the yield.

[0042] The support plate 22 is provided with through holes 28, which penetrate the upper and lower surfaces of the support plate 22. Within the containment space 11 of the reactor 1, after the supercritical fluid enters the containment space 11, in addition to entering the shoe sole blank from the upper surface, the supercritical fluid can also pass through the through holes 28 of the support plate 22 and enter the shoe sole blank from the lower surface. This allows the supercritical fluid to be evenly dispersed in all parts of the shoe sole blank, ensuring that all parts of the shoe sole blank expand evenly during the subsequent expansion process, preventing abnormal warping and deformation of the shoe sole.

[0043] The spacing between the support plates 22 forms the space for the sole blank to foam. During foaming, the foaming space along the vertical direction is restricted by the support plates 22 on both the upper and lower sides of the sole blank. This restricts excessive expansion of the sole blank in the vertical direction, thereby preventing abnormal warping and deformation of the sole blank and improving production efficiency.

[0044] The frame 21 includes several first fixing holes 25 arranged vertically, and the fixing base 24 includes several second fixing holes 26. Different sizes of shoe soles have different heights, requiring different spacing between the adjustable support plates 22. During adjustment, the spacing of the support plates 22 to be adjusted is selected, and the corresponding first fixing hole 25 is chosen based on the spacing. After the second fixing holes 26 of the fixing base 24 are placed opposite to the first fixing holes 25 of the frame 21, fasteners 23 pass through the first fixing holes 25 and the second fixing holes 26. The fasteners 23 are threaded and are used to fix the frame 21 and the fixing base 24 using nuts. The frame 21 has several first fixing holes 25 arranged horizontally, and the fixing base 24 has several second fixing holes 26 arranged horizontally. The fasteners 23 improve the stability of the connection between the frame 21 and the fixing base 24 by fixing multiple first fixing holes 25 and second fixing holes 26.

[0045] The lower part of the frame 21 is provided with wheels 27 to improve the stability of the foaming frame 2 when it moves, and to prevent the shoe sole blank on the foaming frame 2 from shifting during the movement of the foaming frame 2, which would affect the subsequent foaming.

[0046] In this application, a supercritical foaming device for sole blanks is used. The spacing between support plates 22 is determined based on the sole blank. Then, according to the determined spacing, the second fixing hole 26 of the fixing seat 24 is aligned with the corresponding first fixing hole 25 of the frame 21. Fasteners 23 pass through the first fixing hole 25 and the second fixing hole 26 to fix the fixing seat 24 and the frame 21. The support plate 22 has through holes 28 penetrating its upper and lower surfaces. The sole blank is placed on the support plate 22, and then the support plate 22 holding the sole blank is moved to the upper part of the fixing seat 24. The foaming frame 2 holding the sole blank is moved and enters the containing space 11 from the inlet / outlet 13 on the side of the reactor 1. After sealing the reactor 1, supercritical fluid enters the containing space 11 of the reactor 1 through the supercritical fluid flow channel 12. Inside the reactor 1, the supercritical fluid enters the interior of the sole blank. The adjacent support plate 22 of this application restricts the foaming space of the sole blank in the vertical direction, preventing excessive expansion of the sole blank during foaming, which would lead to poor sole warping and deformation, and improve the yield of finished soles. The sole blank is placed directly on the support plate 22, eliminating the need for a suspension part on the sole blank, and reducing the step of removing the suspension part after foaming, thus lowering production costs.

[0047] The description of the above specification and embodiments is used to explain the scope of protection of this application, but does not constitute a limitation on the scope of protection of this application.

Claims

1. A supercritical foaming device for embryos, characterized in that, The apparatus includes a reactor (1) and a foaming rack (2). The reactor (1) is provided with a accommodating space (11) and a supercritical fluid flow channel (12). The accommodating space (11) is used to accommodate the foaming rack (2). The supercritical fluid flow channel (12) is connected to the accommodating space (11) to introduce supercritical fluid to foam the preform. The foaming rack (2) is accommodated in the accommodating space (11) and is provided with a frame (21) and at least two limiting members. Each limiting member is arranged in the vertical direction and connected to the frame (21). The positions of two adjacent limiting members connected to the frame (21) are adjusted by fasteners (23) to change the distance between them. The space between two adjacent limiting members is suitable for accommodating the preform and limiting the deformation of the preform during the foaming process. The limiting members are provided with several through holes (28) to increase the contact area between the preform and the supercritical fluid.

2. The supercritical foaming equipment for embryos as described in claim 1, characterized in that, The limiting member includes a support plate (22), which is arranged in parallel with adjacent support plates (22).

3. The supercritical foaming equipment for embryos as described in claim 2, characterized in that, The limiting member includes a fixing seat (24), which is located below the support plate (22).

4. The supercritical foaming equipment for embryos as described in claim 3, characterized in that, The fixed base (24) is movably connected to the support plate (22).

5. The supercritical foaming equipment for embryos as described in claim 4, characterized in that, The fixing base (24) is located on both sides of the support plate (22).

6. The supercritical foaming equipment for embryos as described in claim 5, characterized in that, The frame (21) is provided with a plurality of first fixing holes (25) along the vertical direction, and the fixing seat (24) is provided with a plurality of second fixing holes (26). The fastener (23) fastens the frame (21) and the fixing seat (24) through the first fixing holes (25) and the second fixing holes (26).

7. The supercritical foaming equipment for embryos as described in claim 6, characterized in that, The through hole (28) is located on the support plate (22).

8. The supercritical foaming equipment for embryos as described in claim 7, characterized in that, The frame (21) includes wheels (27) located at the lower part of the frame (21).

9. The supercritical foaming equipment for embryos as described in claim 8, characterized in that, The reactor (1) includes an inlet and outlet (13) located on the side of the reactor (1).

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