Exhaust seal structure and mold

Abstract

The utility model provides a kind of exhaust sealing structure, it is set to the bottom surface around of upper mould, the exhaust sealing structure includes multiple first sealing pieces and multiple exhaust components, multiple the first sealing piece is along the bottom surface edge of upper mould and is surrounded a circle;Every adjacent two the first sealing piece between being provided with the exhaust component, the exhaust component includes second sealing piece and support piece, the support piece is connected to the bottom surface of the upper mould, the second sealing piece is connected to the support piece side away from the upper mould, support piece and the bottom surface between the upper mould are equipped with exhaust groove, the second sealing piece is connected between adjacent two the first sealing piece.

Description

Technical Field

[0001] This utility model relates to the field of mold assembly, and in particular to an exhaust sealing structure and a mold equipped with the exhaust sealing structure. Background Technology

[0002] In the prior art, some product boxes are used as the bottom mold and upper mold of a mold. Due to the poor flatness of the product box, a soft sealing element is generally required in the upper mold to absorb the flatness tolerance of the product box and make the product box and the upper mold seal together. However, the soft sealing element only has a sealing function and cannot exhaust air. Utility Model Content

[0003] The purpose of this utility model is to provide an exhaust sealing structure that can both seal and vent, and a mold equipped with the exhaust sealing structure.

[0004] To solve the above-mentioned technical problems, this utility model provides an exhaust sealing structure disposed around the bottom surface of an upper mold. The exhaust sealing structure includes a plurality of first sealing elements and a plurality of exhaust components. The plurality of first sealing elements are arranged in a circle around the bottom edge of the upper mold. An exhaust component is disposed between each pair of adjacent first sealing elements. The exhaust component includes a second sealing element and a support element. The support element is connected to the bottom surface of the upper mold, and the second sealing element is connected to the side of the support element away from the upper mold. An exhaust groove is provided between the support element and the bottom surface of the upper mold, and the second sealing element is connected between two adjacent first sealing elements.

[0005] This utility model also provides a mold, which includes an exhaust sealing structure, an upper mold, and a bottom mold. The exhaust sealing structure includes a plurality of first sealing elements and a plurality of exhaust components. The plurality of first sealing elements are arranged in a circle around the bottom edge of the upper mold. An exhaust component is provided between each pair of adjacent first sealing elements. The exhaust component includes a second sealing element and a support element. The support element is connected to the bottom surface of the upper mold, and the second sealing element is connected to the side of the support element away from the upper mold. An exhaust groove is provided between the support element and the bottom surface of the upper mold. The second sealing element is connected between two adjacent first sealing elements. The exhaust sealing structure is clamped between the upper mold and the bottom mold.

[0006] The venting and sealing structure of the mold in this application is clamped between the bottom mold and the upper mold. Multiple first and second seals are arranged around the bottom edge of the upper mold, and the first and second seals are in soft contact with the bottom mold to absorb tolerances and provide a seal, ensuring a complete seal around the mold when the upper and bottom molds are assembled. Furthermore, because a venting groove is provided between the support member and the upper mold, the mold can effectively vent air. Therefore, the upper mold of this application is completely sealed around the mold and can effectively vent air when assembled to the bottom mold, ensuring the quality of the product inside the bottom mold during foaming. Attached Figure Description

[0007] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0008] Figure 1 This is a three-dimensional structural schematic diagram of the mold provided in the first embodiment of this utility model; Figure 2 yes Figure 1 An exploded view of one of the three-dimensional structures of the mold in the image; Figure 3 yes Figure 2 A further exploded three-dimensional structural diagram of the mold; Figure 4 yes Figure 2 An exploded view of the three-dimensional structure of the upper mold in the mold; Figure 5 yes Figure 4 A further exploded three-dimensional structural diagram of the upper mold; Figure 6 yes Figure 5 A further exploded three-dimensional structural diagram of the upper mold; Figure 7 yes Figure 6 A three-dimensional structural diagram of the upper mold from another perspective; Figure 8 yes Figure 4 An enlarged view of section VIII; Figure 9 yes Figure 5 Enlarged 3D view of the exhaust assembly; Figure 10 yes Figure 9 An exploded view of the three-dimensional structure of the exhaust assembly; Figure 11 yes Figure 2 Another exploded view of the three-dimensional structure of the upper mold in the middle; Figure 12yes Figure 11 An enlarged view of part XII in the image; Figure 13 yes Figure 2 An enlarged view of part XIII in the image; Figure 14 yes Figure 2 One of the three-dimensional sectional views of the upper mold in the image; Figure 15 yes Figure 14 A cross-sectional view of the upper mold in the middle; Figure 16 yes Figure 15 A magnified view of the XVI portion; Figure 17 yes Figure 2 Another three-dimensional sectional view of the upper mold; Figure 18 yes Figure 17 A cross-sectional view of the upper mold in the middle; Figure 19 yes Figure 18 A magnified view of the XIX section; Figure 20 This is a three-dimensional structural diagram of the venting assembly and part of the surrounding strip of the mold provided in the second embodiment of this utility model; Figure 21 yes Figure 20 A partial cross-sectional view of the upper mold in the middle; Figure 22 This is a three-dimensional structural diagram of the venting assembly and part of the surrounding strip of the mold provided in the third embodiment of this utility model; Figure 23 yes Figure 22 A partial cross-sectional view of the upper mold. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0010] Furthermore, the following descriptions of various embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments that can be implemented in this application. Directional terms used in this application, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are merely for reference to the accompanying illustrations. Therefore, the directional terms used are for better and clearer explanation and understanding of this application, and are not intended to indicate or imply that the referred device or element 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.

[0011] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," and "set on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0012] Please see Figures 1 to 3 The mold 100 provided in the first embodiment of this utility model includes an exhaust sealing structure 20, a bottom mold 40 and an upper mold 60. The exhaust sealing structure 20 is clamped between the bottom mold 40 and the upper mold 60. In this embodiment, the bottom mold 40 is a product box, and the flatness of the opening surface of the product box is poor. The exhaust sealing structure 20 is connected to the side of the upper mold 60 facing the bottom mold 40, and the side of the exhaust sealing structure 20 away from the upper mold 60 is sealed to the opening surface of the product box so that the upper mold 60 and the bottom mold 40 are completely sealed. The venting and sealing structure 20 is disposed around the bottom surface of the upper mold 60. The venting and sealing structure 20 includes a plurality of first sealing elements 22 and a plurality of venting components 23. The plurality of first sealing elements 22 are arranged in a circle around the bottom edge of the upper mold 60. A venting component 23 is disposed between each pair of adjacent first sealing elements 22. The venting component 23 includes a second sealing element 231 and a support element 235. The support element 235 is connected to the bottom surface of the upper mold 60. The second sealing element 231 is connected to the side of the support element 235 away from the upper mold 60. A venting groove 610 is provided between the support element 235 and the bottom surface of the upper mold 60. The second sealing element 231 is connected between two adjacent first sealing elements 22.

[0013] The venting and sealing structure 20 of the mold 100 of this application is clamped between the bottom mold 40 and the upper mold 60. Multiple first seals 22 and multiple second seals 231 are arranged around the bottom edge of the upper mold 60. The first seals 22 and second seals 231 are in soft contact with the bottom mold 40 to absorb tolerances and seal, ensuring a complete seal around the circumference when the upper mold 60 and the bottom mold 40 are assembled. Furthermore, because a venting groove 610 is provided between the support member 235 and the upper mold 60, the mold 100 can effectively vent air. Therefore, when the upper mold 60 of the mold 100 of this application is assembled to the bottom mold 40, it is completely sealed around the circumference and can effectively vent air, ensuring the quality of the product inside the bottom mold 40 during foaming.

[0014] like Figures 4-7 As shown, the bottom surface of the upper mold 60 is provided with multiple venting grooves 610, which are arranged circumferentially around the bottom surface of the upper mold 60. Multiple support members 235 are respectively connected to the bottom surface of the upper mold 60, and each support member 235 is directly opposite to the multiple venting grooves 610. The support members 235 can prevent the venting grooves 610 from being blocked, thus ensuring the unobstructed flow of the venting grooves 610. Specifically, the upper mold 60 includes a connecting frame 62, a positioning frame 64, and a protective plate 66. The positioning frame 64 is connected to the connecting frame 62, and the protective plate 66 is positioned in the positioning frame 64. The positioning frame 64 includes a connecting plate 642 and a surrounding strip 644 surrounding the protective plate 66. The surrounding strip 644 is connected to the surface of the connecting plate 642 facing away from the connecting frame 62. The venting groove 610 includes a three-stage venting section 612 and an venting inlet 614. The three-stage venting section 612 is disposed on the surrounding strip 644, and the venting inlet 614 is disposed on the protective plate 66. The venting inlet 614 connects to the three-stage venting section 612. In this embodiment, multiple three-stage exhaust sections 612 are respectively disposed on the surface of the retaining strip 644 opposite to the connecting plate 642, and the multiple three-stage exhaust sections 612 are arranged along the length of the retaining strip 644; multiple exhaust inlets 614 are respectively disposed around the protective plate 66, and the multiple exhaust inlets 614 are arranged along the edge of the protective plate 66; when the retaining strip 644 is fitted onto the protective plate 66, the multiple three-stage exhaust sections 612 are respectively connected to the multiple exhaust inlets 614. In this embodiment, the retaining strip 644 is an aluminum strip.

[0015] In this embodiment, the connecting frame 62 is a rectangular frame, including multiple first connecting strips 621 and multiple second connecting strips 623. The multiple first connecting strips 621 and multiple second connecting strips 623 are staggered to form a rectangular frame. The connecting plate 642 is a rectangular plate, and the side of the rectangular plate opposite to the surrounding strip 644 is connected to the rectangular frame. The length and width of the connecting plate 642 are the same as the length and width of the rectangular frame. The surrounding strip 644 includes two side strips 6442 and two end strips 6443. The two side strips 6442 are respectively connected to the opposite sides of the connecting plate 642 opposite to the surface of the connecting frame 62. The two end strips 6443 are respectively connected to the opposite ends of the connecting plate 642 opposite to the surface of the connecting frame 62. The opposite ends of each end strip 6443 are respectively connected to the two side strips 6442. The two end strips 6443 and the two side strips 6442 form a rectangular receiving space 645, and the protective plate 66 can be accommodated in the receiving space 645. Each side strip 6442 has a plurality of three-stage exhaust sections 612 on its surface opposite to the connecting plate 642, and the plurality of three-stage exhaust sections 612 are spaced apart along the length direction of the side strip 6442; each end strip 6443 has a plurality of three-stage exhaust sections 612 on its surface opposite to the connecting plate 642, and the plurality of three-stage exhaust sections 612 are spaced apart along the length direction of the end strip 6443. Preferably, the plurality of three-stage exhaust sections 612 are evenly spaced apart on the side strip 6442 and the plurality of three-stage exhaust sections 612 are evenly spaced apart on the end strip 6443. The protective plate 66 is a rectangular plate, including a top surface 662, two side surfaces 664, and two end surfaces 665. Each side surface 664 has multiple exhaust inlets 614 on the side closest to the top surface 662, and the multiple exhaust inlets 614 are spaced apart along the length direction of the side surface 664. Each end surface 665 has multiple exhaust inlets 614 on the side closest to the top surface 662, and the multiple exhaust inlets 614 are spaced apart along the length direction of the end surface 665. Each exhaust inlet 614 passes through the top surface 662. Preferably, the multiple exhaust inlets 614 are evenly spaced along the length direction of the side surfaces 664 and the multiple exhaust inlets 614 are evenly spaced along the length direction of the end surface 665.

[0016] In this embodiment, each side strip 6442 is provided with 7 three-stage exhaust sections 612, which are evenly spaced along the length of the side strip 6442; each end strip 6443 is provided with 4 three-stage exhaust sections 612, which are evenly spaced along the length of the end strip 6443; each side surface 664 of the guard plate 66 is provided with 7 exhaust inlets 614, which are evenly spaced along the length of the side surface 664; each end surface 665 of the guard plate 66 is provided with 4 exhaust inlets 614, which are evenly spaced along the length of the end surface 665. When the guard plate 66 is housed in the receiving space 645, the 7 three-stage exhaust sections 612 of the two side strips 6442 are respectively connected to the 7 exhaust inlets 614 of the two side surfaces 664, and the 4 three-stage exhaust sections 612 of the two end strips 6443 are respectively connected to the 4 exhaust inlets 614 of the two end surfaces 665.

[0017] In other embodiments, each side strip 6442 is provided with at least one three-stage exhaust section 612, that is, each side strip 6442 may be provided with, but is not limited to, one, two, three, four, five, six, eight, or nine three-stage exhaust sections 612; each end strip 6443 is provided with at least one three-stage exhaust section 612, that is, each end strip 6443 may be provided with, but is not limited to, one, two, three, four, five, six, or eight three-stage exhaust sections 612. The exhaust system may have 12 or 9 three-stage exhaust sections 612, etc.; each side 664 may have at least one exhaust inlet 614, that is, each side 664 may have, but is not limited to, one exhaust inlet 614, two exhaust inlets 614, three exhaust inlets 614, four exhaust inlets 614, five exhaust inlets 614, six exhaust inlets 614, eight exhaust inlets 614, or nine exhaust inlets 614, etc.; each end face 665 may have at least one exhaust inlet 614, that is, each end face 665 may have, but is not limited to, one exhaust inlet 614, two exhaust inlets 614, three exhaust inlets 614, four exhaust inlets 614, five exhaust inlets 614, six exhaust inlets 614, eight exhaust inlets 614, or nine exhaust inlets 614, etc.

[0018] In other embodiments, the connecting frame 62 may be, but is not limited to, a circular frame, a polygonal frame, an elliptical frame, etc.; the connecting plate 642 may be, but is not limited to, a circular plate, a polygonal plate, an elliptical plate, etc.; the surrounding strip 644 may be, but is not limited to, a circular wall, a polygonal wall, an elliptical wall, etc., and the surface of the surrounding strip 644 away from the connecting plate 642 is provided with multiple three-stage exhaust sections 612; the protective plate 66 may be, but is not limited to, a circular plate, a polygonal plate, an elliptical plate, etc., and the circumferential surface of the protective plate 66 is provided with multiple exhaust inlets 614. When the surrounding strip 644 surrounds the circumference of the protective plate 66, the multiple three-stage exhaust sections 612 are respectively connected to the multiple exhaust inlets 614.

[0019] Optionally, the first sealing element 22 is detachably connected to the surface of the retaining strip 644 facing away from the connecting plate 642. The first sealing element 22 and the retaining strip 644 can be connected by, but is not limited to, snap-fit, adhesive bonding, or magnetic adsorption. In this embodiment, the first sealing element 22 and the retaining strip 644 are detachably connected by magnetic attraction. Specifically, the first sealing element 22 is provided with an iron sheet 225, and the retaining strip 644 is provided with a magnet. The iron sheet of the first sealing element 22 is detachably connected to the magnet of the retaining strip 644. The side strip 6442 has multiple magnets 6444 on its side away from the connecting plate 642, and the end strip 6443 also has multiple magnets 6444 on its side away from the connecting plate 642. Each first sealing member 22 has an iron sheet 225 on its side near the surrounding strip 644. The iron sheets 225 of the multiple first sealing members 22 are magnetically attracted to the multiple magnets 6444 of the side strip 6442, and the iron sheets 225 of the multiple first sealing members 22 are magnetically attracted to the multiple magnets 6444 of the end strip 6443. In this embodiment, the first sealing member 22 is a rectangular soft strip, which can be, but is not limited to, a silicone strip, a soft rubber strip, etc.

[0020] like Figure 8As shown, the three-stage exhaust section 612 includes an inner groove 6121, an outer groove 6123, and a middle groove 6125. The middle groove 6125 is located between the inner groove 6121 and the outer groove 6123. The two opposite ends of the middle groove 6125 are respectively connected to the outer groove 6123 and the inner groove 6121. The inner groove 6121 passes through the inner circumferential surface of the surrounding strip 644. The exhaust inlet 614 is connected to the inner groove 6121. The outer groove 6123 passes through the outer circumferential surface of the surrounding strip 644, so that gas can be discharged from the outer groove 6123 through the exhaust inlet 614, the inner groove 6121, and the middle groove 6125. In this embodiment, the inner groove 6121, the intermediate groove 6125, and the outer groove 6123 are all semi-circular grooves; the inner diameter of the outer groove 6123 is larger than the inner diameter of the intermediate groove 6125, and the inner diameter of the intermediate groove 6125 is larger than the inner diameter of the inner groove 6121. In other embodiments, the inner groove 6121, the intermediate groove 6125, and the outer groove 6123 can be, but are not limited to, rectangular grooves, polygonal grooves, etc., and the radial dimensions of the outer groove 6123, the intermediate groove 6125, and the inner groove 6121 gradually decrease. In this embodiment, the exhaust inlet 614 includes a first inflow groove 6142 and a second inflow groove 6144 that are interconnected. The first inflow groove 6142 is located on the top surface 662 of the guard plate 66, and the second inflow groove 6144 is located on the outer peripheral surface of the guard plate 66. The inner groove 6121 is connected to the second inflow groove 6144.

[0021] like Figures 6-8As shown, the support member 235 is detachably connected to the bottom surface of the upper mold 60, and the two opposite sides of the second sealing member 231 are respectively sealed and attached to the two first sealing members 22. Specifically, multiple support members 235 are detachably connected to the surface of the surrounding strip 644 away from the connecting plate 642, and multiple support members 235 respectively cover multiple three-stage exhaust sections 612. The support members 235 and the surrounding strip 644 are detachably connected by magnetic adsorption. The bottom surface of the upper mold 60 is provided with a magnetic attractor 326 near the exhaust groove 610. The support member 235 is a magnetic member, and the magnetic attractor 326 is detachably connected to the support member 235 so that the exhaust assembly 23 is detachably connected to the upper mold 60. Specifically, the bottom surface of the upper mold 60 is provided with magnetic attractors 326 on the opposite sides of each exhaust groove 610, and the opposite sides of the support member 235 are respectively detachably connected to two magnetic attractors 326. In this embodiment, the surface of the circumferential strip 644 facing away from the connecting plate 642 is provided with magnetic attractors 326 on opposite sides of each exhaust groove 610. The support member 235 is detachably magnetically attracted to the two magnetic attractors 326, and the support member 235 covers the exhaust groove 610. Specifically, the surface of each side strip 6442 facing away from the connecting plate 642 is provided with magnetic attractors 326 on opposite sides of each three-stage exhaust section 612, and the surface of each end strip 6443 facing away from the connecting plate 642 is provided with magnetic attractors 326 on opposite sides of each three-stage exhaust section 612. In this embodiment, the surface of the circumferential strip 644 facing away from the connecting plate 642 is provided with positioning holes 6445 on opposite sides of each three-stage exhaust section 612, and the two magnetic attractors 326 are respectively positioned in the two positioning holes 6445. In this embodiment, the magnetic attractor 326 is a magnet, and the support member 235 can be a support sheet made of iron. In other embodiments, the magnetic attractor 326 can be an iron block, and the support member 235 can be a magnetic sheet.

[0022] like Figure 9 and Figure 10 As shown, the support member 235 includes a support piece 2351 and a positioning piece 2353. The positioning piece 2353 is connected to one side of the support piece 2351. The support piece 2351 and the positioning piece 2353 form a positioning space 2356. The second sealing member 231 is positioned in the positioning space 2356, and the support piece 2351 covers the exhaust groove. Specifically, the support piece 2351 is a first rectangular piece, and the positioning piece 2353 is a second rectangular piece. One side of the second rectangular piece is connected to the other side of the second rectangular piece. In this embodiment, the positioning piece 2353 is perpendicular to the support piece 2351. The second sealing member 231 is a rectangular soft block, which can be, but is not limited to, a silicone block, a rubber block, etc. A positioning groove 2312 is provided on one side of the second sealing member 231, and the positioning piece 2353 can be positioned in the positioning groove 2312.

[0023] like Figures 6-7 and Figures 11-19As shown, when assembling the upper mold 60 and the exhaust sealing structure 20, the positioning frame 64 is installed onto the connecting frame 62. Specifically, the side of the connecting plate 642 facing away from the surrounding strip 644 is connected to the connecting frame 62; the protective plate 66 is housed in the receiving space 645 of the positioning frame 64, such that the multiple exhaust inlets 614 of the protective plate 66 are respectively aligned with the multiple three-stage exhaust sections 612, and each exhaust inlet 614 is connected to the corresponding three-stage exhaust section 612; the multiple exhaust components 23 are respectively positioned on the surface of the surrounding strip 644 facing away from the connecting plate 642, such that the support members 235 of the multiple exhaust components 23 respectively cover the multiple Each of the three-stage exhaust sections 612 has a support member 235 magnetically attracted to a corresponding magnetic member 326, and a second sealing member 231 is connected to the side of the support member 235 away from the surrounding strip 644; multiple first sealing members 22 are respectively positioned on the surface of the surrounding strip 644 away from the connecting plate 642, so that the iron sheet 225 of the first sealing member 22 is magnetically attracted to the magnet block 6444 on the surrounding strip 644, and each second sealing member 231 is clamped between two adjacent first sealing members 22; so as to achieve segmented rubber coating on the surrounding strip 644, that is, to coat the surface of the surrounding strip 644 away from the connecting plate 642 with soft rubber.

[0024] The upper mold 60 is placed over the lower mold 40, so that the venting and sealing structure 20 is sealed between the upper mold 60 and the lower mold 40. The surface tolerance of the lower mold 40 is absorbed by the first sealing member 22 and the second sealing member 231, so that the upper mold 60 and the lower mold 40 are sealed. Each support member 235 covers the corresponding three-stage venting section 612, which keeps the venting groove 610 open and facilitates venting of the mold 100. Therefore, the mold 100 of this application can not only ensure that the upper mold 60 is completely sealed on all sides during assembly, but also allow the venting and sealing structure 20 to effectively vent, so that the product can maintain quality during foaming. Since the support member 235 of the venting and sealing structure 20 is detachably connected to the surrounding strip 644 by magnetic attraction, it can be quickly installed, and the operation is simple and convenient.

[0025] When it is necessary to remove the exhaust sealing structure 20 and the first seal 22 from the retaining strip 644, the upper mold 60 and the exhaust sealing structure 20 are removed from the bottom mold 40, and the multiple exhaust components 23 are pulled off the retaining strip 644 respectively, and the multiple first seals 22 are pulled off the retaining strip 644 respectively; therefore, the exhaust components 23 and the first seals 22 can be quickly disassembled, and the operation is simple and convenient.

[0026] like Figure 20 and Figure 21As shown, the structure of the mold in the second embodiment of this application is similar to that of the mold in the first embodiment, except that: the venting groove 610 on the surrounding strip 644 in the first embodiment is provided on the support member 235a in the second embodiment. In the second embodiment, the surface of the mold facing upward of the support member 235a is provided with the venting groove 610a, and the venting groove 610a penetrates the support member 235a. Specifically, the support piece 2351 of the support member 235a is provided with the venting groove 610a on the side facing the surrounding strip 644. The inner groove portion 6121 of the venting groove 610a is close to one end of the positioning piece 2353 and passes through the positioning piece 2353. The outer groove portion 6123 is located at one end away from the positioning piece 2353 and passes through the support piece 2351. The middle groove portion 6125 is located between the inner groove portion 6121 and the outer groove portion 6123, and the opposite ends of the middle groove portion 6125 are respectively connected to the inner groove portion 6121 and the outer groove portion 6123. In this embodiment, the venting groove 610a is located in the middle of the support piece 2351. When the support piece 2351 of the support member 235a is magnetically attracted to the corresponding magnetic attractor 326, the venting groove 610a is located between two adjacent magnetic attractors 326, and the venting groove 610a penetrates the inner cavity and the outer surface of the surrounding strip 644.

[0027] The assembly and effect of the mold in the second embodiment are the same as those in the first embodiment, and will not be described again here.

[0028] Please refer to the following: Figure 22 and Figure 23 The structure of the mold in the third embodiment of this application is similar to that of the mold in the first embodiment, except that: in the first embodiment, an exhaust groove 610a is provided on the side of the support member 235a facing the surrounding strip 644; in the second embodiment, the surface of the support member 235a facing upwards is provided with an exhaust groove 610a, which penetrates through the support member 235a; specifically, the surface of the support piece 2351 of the support member 235a facing the surrounding strip 644 is provided with an exhaust groove 610a, which... The inner groove portion 6121 of support member 235a is located near one end of the positioning piece 2353 and passes through the positioning piece 2353. The outer groove portion 6123 is located at the end away from the positioning piece 2353 and passes through the support piece 2351. The middle groove portion 6125 is located between the inner groove portion 6121 and the outer groove portion 6123, and the two opposite ends of the middle groove portion 6125 are respectively connected to the inner groove portion 6121 and the outer groove portion 6123. The surrounding strip 644 has an exhaust groove 610 facing each support member 235a. In this embodiment, the exhaust groove 610a is located in the middle of the support piece 2351. When the support piece 2351 of the support member 235a is magnetically attracted to the corresponding magnetic attractor 326, the exhaust groove 610 on each support member 235a is directly opposite the corresponding exhaust groove 610a on the surrounding strip 644.

[0029] The assembly and effect of the mold in the third embodiment are the same as those in the first embodiment, and will not be described again here.

[0030] The above are the implementation methods of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications are also considered to be within the protection scope of the present utility model.

Claims

1. A venting and sealing structure, disposed around the bottom surface of an upper mold, characterized in that, The exhaust sealing structure includes: A plurality of first seals, wherein the plurality of first seals are arranged in a ring around the bottom edge of the upper mold; and Multiple venting assemblies are provided, with each venting assembly disposed between every two adjacent first seals. Each venting assembly includes a second seal and a support. The support is connected to the bottom surface of the upper mold, and the second seal is connected to the side of the support away from the upper mold. A venting groove is provided between the support and the bottom surface of the upper mold, and the second seal is connected between two adjacent first seals.

2. The exhaust sealing structure according to claim 1, characterized in that, The bottom surface of the upper mold is provided with a plurality of venting grooves, which are arranged circumferentially around the bottom surface of the upper mold. A plurality of supporting members are respectively connected to the bottom surface of the upper mold, and the plurality of supporting members are respectively facing the plurality of venting grooves; and / or the surface of the supporting members facing the upper mold is provided with venting grooves.

3. The exhaust sealing structure according to claim 2, characterized in that, The support member is detachably connected to the bottom surface of the upper mold, and the two opposite sides of the second seal member are respectively sealed to the two first seal members.

4. The exhaust sealing structure according to claim 2, characterized in that, The bottom surface of the upper mold is provided with a magnetic suction element near the venting groove, and the support element is a magnetic element. The magnetic suction element is detachably connected to the support element.

5. The exhaust sealing structure according to claim 4, characterized in that, The bottom surface of the upper mold is provided with magnetic suction members on opposite sides of each of the exhaust grooves, and the opposite sides of the support member are detachably connected to the two magnetic suction members.

6. The exhaust sealing structure according to claim 2, characterized in that, The support member includes a support piece and a positioning piece. The positioning piece is connected to one side of the support piece, and the support piece and the positioning piece form a positioning space. The second sealing member is positioned in the positioning space, and the support piece covers the exhaust groove.

7. The exhaust sealing structure according to claim 1, characterized in that, The upper mold includes a positioning frame and a protective plate. The protective plate is positioned on the positioning frame. The positioning frame includes a surrounding strip that surrounds the protective plate. The exhaust groove includes a three-stage exhaust section and an exhaust inlet. The three-stage exhaust section is located on the surrounding strip. The exhaust inlet is located on the protective plate and is connected to the three-stage exhaust section.

8. The exhaust sealing structure according to claim 7, characterized in that, The three-stage exhaust section includes an inner groove, an outer groove, and a middle groove. The middle groove is located between the inner groove and the outer groove. The inner groove passes through the inner circumferential surface of the enclosure strip. The exhaust inlet is connected to the inner groove. The outer groove passes through the outer circumferential surface of the enclosure strip.

9. The exhaust sealing structure according to claim 8, characterized in that, The inner diameter of the outer groove is larger than the inner diameter of the middle groove, and the inner diameter of the middle groove is larger than the inner diameter of the inner groove.

10. A mold, characterized in that, The mold includes an exhaust sealing structure as described in any one of claims 1-9, an upper mold, and a bottom mold, wherein the exhaust sealing structure is clamped between the upper mold and the bottom mold.

Images