Supercritical foaming device

Abstract

The utility model relates to the technical field of foaming materials, in particular to a supercritical foaming device, which comprises a foaming furnace, an air inlet pipe, an air outlet pipe and an air outlet pipe, the plugging assembly is arranged at the opening of the foaming furnace and used for plugging the opening of the foaming furnace, and the plugging assembly is movably mounted on the rack; and the bidirectional opening and closing structure covers the outer sides of the foaming furnace and the plugging assembly. According to the utility model, the closed structure of the opening of the furnace body is redesigned, so that the occupied space of the device is reduced, and the safety of the processing process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foaming materials, in particular to a supercritical foaming device. Background Art

[0002] Supercritical foaming molding is a physical foaming molding technology, and also a microcellular foaming molding technology. During the injection molding, extrusion, and blow molding processes, supercritical carbon dioxide or nitrogen or other gases are first injected into a special plasticizing device to allow the gas to fully and evenly mix / diffuse with the molten raw materials to form a single-phase mixed sol. This sol is then introduced into the mold cavity or extrusion die to generate a large pressure drop in the sol, causing the gas to precipitate and form a large number of bubble nuclei. During the subsequent cooling and molding process, the bubble nuclei inside the sol continue to grow and form, ultimately obtaining a microcellular foamed plastic product.

[0003] When existing foaming devices are used to seal the furnace body, a door body is hinged on the opening side of the furnace body. The furnace body is sealed by a single door body. When the door body is opened, it occupies most of the space outside the opening side of the furnace body. In addition, when the furnace body has an abnormality, the sudden opening of the door body will bring great danger to the area around the outside of the door body. Utility Model Content

[0004] The purpose of the utility model is to provide a supercritical foaming device to solve the above problems. By redesigning the closed structure of the furnace opening, the space occupied by the device is reduced and the safety of the processing process is improved.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] A supercritical foaming device, comprising:

[0007] The foaming furnace has an open structure on one side and is installed on the frame;

[0008] a blocking assembly, provided at the opening of the foaming furnace for blocking the opening of the foaming furnace, wherein the blocking assembly is movably mounted on the frame;

[0009] The two-way opening and closing structure is covered on the outside of the foaming furnace and the blocking component.

[0010] Preferably, the blocking component includes:

[0011] A blocking block, used for blocking the foaming furnace;

[0012] A pull rod connected to one side of the blocking block and arranged away from the foaming furnace;

[0013] A slide, movably mounted on the frame, for moving the drawing rod along the axial direction of the foaming furnace on the slide;

[0014] An annular protrusion is fixedly connected to the outer side of the opening of the foaming furnace, and the two-way opening and closing structure is covered on the outer side of the annular protrusion and the blocking block.

[0015] Preferably, a guide rail is installed on the frame, and the slide is in sliding cooperation with the guide rail.

[0016] Preferably, the two-way opening and closing structure includes:

[0017] Two swing arm groups, one end of which is rotatably connected to the frame via a connecting shaft, and the connecting shaft is installed on the frame;

[0018] A buckle cover, mounted on the swing arm assembly, for covering the foaming furnace and the blocking block;

[0019] An opening and closing driving component, connected to the swing arm assembly, for driving the two snap-on covers to open and close;

[0020] The swing arm group includes two connecting arms, and one snap-on cover is installed between the two connecting arms of the same swing arm group.

[0021] Preferably, the opening and closing driving component includes:

[0022] A push-pull rod is installed between the two connecting arms of the same swing arm group;

[0023] Two telescopic cylinders, one end of which is hinged to the push-pull rod, for driving the two snap-on covers to expand and close;

[0024] Two mounting rods are mounted on the frame and located below the foaming furnace, and are hinged to the other end of the telescopic cylinder;

[0025] The two telescopic cylinders are cross-arranged.

[0026] Preferably, an explosion-proof component is provided under the foaming furnace, and the explosion-proof component is used to prevent the two snap-fit ​​covers from opening unexpectedly.

[0027] Preferably, the explosion-proof component includes:

[0028] Two safety hooks are movably mounted on a mounting plate, and the mounting plate is fixedly connected to the frame;

[0029] One end of the safety hook is located on the outside of the push-pull rod, and the safety hook is fixedly connected to the push block;

[0030] The safety cylinder is mounted on the mounting plate, and a movable end of the safety cylinder is fixedly connected with the push block.

[0031] The utility model has the following technical effects:

[0032] The utility model discloses discard the single door structure of existing, through the outside of foaming furnace and plugging assembly of two -way open -close structure cladding, such setting reduces the occupancy of equipment space, and, two -way open -close structure can completely cover foaming furnace and plugging assembly, when the furnace body appears abnormal condition, can close plugging assembly in two -way open -close structure inside, avoided the ejection of plugging part, in addition, plugging assembly is movably arranged on the frame, when needing to unload or take material, two -way open -close structure is opened, and plugging assembly is removed, and the taking of material is realized, make the whole device use more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0034] Figure 1 It is a structural schematic diagram of the utility model;

[0035] Figure 2 It is a structure schematic diagram of the utility model buckle cover opening structure;

[0036] Figure 3 It is another perspective structural schematic diagram of the utility model;

[0037] Figure 4 It is another perspective buckle cover opening structure schematic diagram of the utility model;

[0038] Figure 5 It is a structural schematic diagram of the explosion-proof part of one embodiment of the utility model

[0039] Figure 6 It is another structural schematic diagram of the explosion-proof part of the utility model;

[0040] Figure 7 It is a structural schematic diagram of the foaming furnace of the utility model.

[0041] Among them, 1. Frame; 101. Guide rail; 102. Slide; 103. Pull rod; 104. Blocking block; 105. Mounting rod; 2. Foaming furnace; 201. Material storage net; 202. Annular protrusion 3. Snap-fit ​​cover; 301. Connecting arm; 302. Connecting shaft; 303. Push-pull rod; 4. Telescopic cylinder; 5. Mounting plate; 501. Safety cylinder; 502. Push block; 503. Safety hook. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0044] Reference Figures 1 to 5 As shown, this embodiment provides a supercritical foaming device, comprising:

[0045] The foaming furnace 2 has an open structure on one side and is installed on the frame 1;

[0046] The sealing assembly includes a sealing block 104, a pulling rod 103, and a slide 102. The sealing block 104 is arranged at the opening of the foaming furnace 2 to seal the opening of the foaming furnace 2. A guide rail 101 is installed on the frame 1, and the slide 102 slides with the guide rail 101. The sealing block 104 is movably installed on the frame 1 through the guide rail 101; the pulling rod 103 is connected to one side of the sealing block 104 and is arranged away from the foaming furnace 2; the pulling rod 103 slides with the slide 102 to enable the pulling rod 103 to move axially along the foaming furnace 2 on the slide 102. The outer side of the opening side of the foaming furnace 2 is fixedly connected with an annular protrusion 202, and the two-way opening and closing structure is covered on the outer side of the annular protrusion 202 and the sealing block 104.

[0047] The two-way opening and closing structure includes two swing arm groups, a snap-fit ​​cover 3, and an opening and closing drive component. One end of the swing arm group is rotatably connected to the frame 1 via a connecting shaft 302 (the connecting shaft 302 is not shown in the figure and can be rotatably connected to the frame 1 via a separately installed bracket, and can be rotatably connected to the frame 1 using a connecting rod, a connecting frame, etc.). The connecting shaft 302 is installed on the frame 1; the snap-fit ​​cover 3 is installed on the swing arm group to cover the annular protrusion 202 and the blocking block 104; the opening and closing drive component is connected to the swing arm group to drive the two snap-fit ​​covers 3 to expand and close;

[0048] The swing arm group comprises two connecting arms 301, and one buckle cover 3 is installed between the two connecting arms 301 of the same swing arm group. A push-pull rod 303 is installed between the two connecting arms 301 of the same swing arm group;

[0049] Two telescopic cylinders 4 are hingedly connected to one end of the push-pull rod 303 and used for driving the two buckle covers 3 to open and close. Two mounting rods 105 are mounted on the rack 1 and located below the foaming furnace 2 and are hingedly connected to the other end of the telescopic cylinder 4. The two telescopic cylinders 4 are cross arranged. An explosion-proof component is arranged below the foaming furnace 2 and used for preventing the two buckle covers 3 from suddenly opening.

[0050] The explosion-proof component comprises two safety hooks 503 which are movably mounted on a mounting plate 5 fixedly connected to the rack 1. The safety hook 503 is fixedly connected to a push block 502 with the hook end located outside the push-pull rod 303. An insurance cylinder 501 is mounted on the mounting plate 5 and the movable end of the insurance cylinder 501 is fixedly connected to the push block 502.

[0051] The foaming furnace 2 is provided with a material storage net 201. In the operation process, when the material needs to be placed in the foaming furnace 2, the telescopic cylinder 4 is controlled to be elongated, the telescopic cylinder 4 drives the two push-pull rods 303 to be unfolded to the outside, at this time, the connecting arm 301 is driven to rotate along the connecting shaft 302, the two buckle covers 3 are opened, then the pull rod 103 is pulled, the pull rod 103 moves on the sliding table 102, drives the blocking block 104 to move outwards, then the sliding table 102 moves on the guide rail 101, and then the opening of the foaming furnace 2 is left out, at this time, the material can be placed on the material storage net 201, then the sliding table 102 and the pull rod 103 are reversely operated to make the blocking block 104 block the opening of the foaming furnace 2, then the telescopic cylinder 4 is controlled to be contracted to make the two buckle covers 3 buckle the foaming furnace 2 and the blocking block 104 in the inside, thereby avoiding the problem that the opening and closing of the single door body occupies a large space in the prior art. The surface of the blocking block 4 close to the pull rod 103 is provided with a conical surface, the surface of the annular protrusion 202 close to the pull rod 103 is also provided with a conical surface, the surface of the annular protrusion 202 away from the blocking block 4 is also provided with a conical surface, the buckle cover 3 is matched with the annular protrusion 202 and the blocking block 4, so that the sealing property among the three is increased, and when the foaming furnace has an abnormal explosion, the two buckle covers 3 can close the blocking block 4 in the inside, thereby enhancing the safety of the equipment.

[0052] In addition, the device of the present invention is also provided with an explosion-proof component. When the snap-fit ​​cover 3 is snapped, the extension of the safety cylinder 501 is controlled to drive the push block 502 to move upward. At this time, the hook of the safety hook 503 moves to the outside of the push-pull rod 303. When an abnormal situation occurs, the snap-fit ​​cover 3 cannot be effectively sealed and is unfolded outward, the safety hook 503 can hook the push-pull rod 303 to prevent the snap-fit ​​cover 3 from opening. When the snap-fit ​​cover 3 needs to be opened, the contraction of the safety cylinder 501 is controlled to drive the push block 502 to move downward. At this time, the hook of the safety hook 503 moves downward and is no longer located on the outside of the push-pull rod 303 but below it, ensuring that the snap-fit ​​cover 3 can be opened normally. By providing the explosion-proof component, the safety performance of the present utility model is further enhanced.

[0053] As another embodiment: the explosion-proof component includes: two safety hooks 503, which are symmetrically mounted on the mounting plate 5 for rotation, and the mounting plate 5 is fixedly connected to the frame 1; one end of the safety hook 503 with a hook is located on the outside of the push-pull rod 303, and the other end of the safety hook 503 is slidably connected to the push block 502; a safety cylinder 501 is installed on the mounting plate 5, and the movable end of the safety cylinder 501 is fixedly connected to the push block 502.

[0054] When the snap-fit ​​cover 3 is snapped, the contraction of the safety cylinder 501 is controlled to drive the push block 502 to move downward. At this time, the hook of the safety hook 503 moves to the outside of the push-pull rod 303. When an abnormal situation occurs and the snap-fit ​​cover 3 cannot be effectively sealed and is expanded outward, the safety hook 503 can hook the push-pull rod 303 to prevent the snap-fit ​​cover 3 from opening. When the snap-fit ​​cover 3 needs to be opened, the extension of the safety cylinder 501 is controlled to drive the push block 502 to move upward. At this time, the hook of the safety hook 503 moves downward and is no longer located on the outside of the push-pull rod 303 but below it, ensuring that the snap-fit ​​cover 3 can be opened normally.

[0055] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0056] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A supercritical foaming device, characterized in that: include: A foaming furnace (2) having an open structure on one side and mounted on the frame (1); a blocking component, provided at the opening of the foaming furnace (2) and used for blocking the opening of the foaming furnace (2), the blocking component being movably mounted on the frame (1); The two-way opening and closing structure is covered on the outside of the foaming furnace (2) and the blocking component.

2. A supercritical foaming device according to claim 1, characterized in that, The blocking component comprises: A blocking block (104) for blocking the foaming furnace (2); A pulling rod (103) is connected to one side of the blocking block (104) and is arranged away from the foaming furnace (2); A slide (102) is movably mounted on the frame (1) and is used to move the drawing rod (103) on the slide (102) along the axial direction of the foaming furnace (2); An annular protrusion (202) is fixedly connected to the outer side of the opening of the foaming furnace (2), and the two-way opening and closing structure is covered on the outer side of the annular protrusion (202) and the blocking block (104).

3. A supercritical foaming device according to claim 2, characterized in that, A guide rail (101) is installed on the frame (1), and the slide (102) is in sliding cooperation with the guide rail (101).

4. A supercritical foaming device according to claim 2, characterized in that: The two-way opening and closing structure includes: Two swing arm groups, one end of which is rotatably connected to the frame (1) via a connecting shaft (302), and the connecting shaft (302) is mounted on the frame (1); A snap-fit ​​cover (3) is mounted on the swing arm assembly and is used to cover the annular protrusion (202) and the blocking block (104); An opening and closing driving component connected to the swing arm assembly and used for driving the two snap-fit ​​covers (3) to open and close; The swing arm group comprises two connecting arms (301), and one snap-fit ​​cover (3) is installed between the two connecting arms (301) of the same swing arm group.

5. A supercritical foaming device according to claim 4, characterized in that: The opening and closing driving component includes: A push-pull rod (303) is installed between the two connecting arms (301) of the same swing arm group; Two telescopic cylinders (4), one end of which is hinged to the push-pull rod (303), and is used to drive the two snap-fit ​​covers (3) to expand and close; Two mounting rods (105) are mounted on the frame (1) and located below the foaming furnace (2), and are hinged to the other end of the telescopic cylinder (4); The two telescopic cylinders (4) are arranged crosswise.

6. A supercritical foaming device according to claim 5, characterized in that: An explosion-proof component is provided below the foaming furnace (2), and the explosion-proof component is used to prevent the two snap-fit ​​covers (3) from opening unexpectedly.

7. A supercritical foaming device according to claim 6, characterized in that: The explosion-proof components include: Two safety hooks (503) are movably mounted on a mounting plate (5), wherein the mounting plate (5) is fixedly connected to the frame (1); One end of the safety hook (503) with a hook is located outside the push-pull rod (303), and the safety hook (503) is fixedly connected to the push block (502); A safety cylinder (501) is installed on the mounting plate (5), and a movable end of the safety cylinder (501) is fixedly connected to the push block (502).

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