Split type mold for forming rubber expansion joint

Abstract

The utility model discloses a split type mould for forming a rubber expansion joint, which relates to the technical field of expansion joint forming and comprises an outer mould, the outer mould is in a sleeve shape, a forming cavity is arranged on the inner wall of the outer mould, and a forming groove is arranged on the outer mould above the forming cavity. And the inner mold is of a split type detachable structure. The inner mold is arranged to be of a split type detachable structure, the inner mold is placed in the outer mold, the inner mold is borne in the outer mold through the upper pressing plate and the bottom sealing assembly, meanwhile, the outer mold, the upper pressing plate and the bottom sealing assembly are integrally locked in cooperation with the locking assembly, and the inner mold, the outer mold, the upper pressing plate and the bottom sealing assembly form the detachable mold. The rubber expansion joint can be quickly taken out after being subjected to vulcanization forming. The defect that in the prior art, an expansion joint vulcanization mold is inconvenient to disassemble after being formed is effectively overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion joint forming, in particular to a split die for rubber expansion joint forming. Background Art

[0002] After the rubber expansion joint is vulcanized by using the existing vulcanization die, the formed rubber expansion joint product must be taken out from the inner die. Since the inner and outer dies of the existing vulcanization die are of an integral structure and the whole is high-temperature vulcanized, the temperature of both the product and the inner die is above 100 + °C. The product is tightly sleeved on the inner die and a lever must be used to take out the product. Workers need to be on guard against scalding when contacting the product. At the same time, the taken-out product may be damaged due to uneven force on the product. This method has the problems of great processing difficulty and easy product damage during disassembly. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the disadvantage of inconvenient disassembly after the expansion joint vulcanization die is formed in the prior art, and to propose a split die for rubber expansion joint forming.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A split die for rubber expansion joint forming, comprising:

[0006] An outer die, the outer die is in a sleeve shape, an inner wall of the outer die is provided with a forming cavity, and a forming groove is arranged above the forming cavity of the outer die;

[0007] An inner die, the inner die is of a split and detachable structure, the inner die is arranged in the forming cavity in a circular array manner, and one end of the inner die is carried in the forming groove. The inner die is used to cooperate with the forming cavity and the forming groove in the outer die to vulcanize and form the rubber expansion joint;

[0008] An upper pressing plate, the upper pressing plate is arranged at one end of the outer die, the upper pressing plate is arranged in the forming groove, the upper pressing plate is located on a side of the inner die away from the forming cavity, and the upper pressing plate is used to cooperate with the inner die and the outer die to perform forming and vulcanizing treatment on one end of the rubber expansion joint;

[0009] A bottom sealing assembly, the bottom sealing assembly is arranged at the other end of the outer die, the bottom sealing assembly is arranged at a position where the forming cavity is away from the forming groove, the bottom sealing assembly is located on a side of the inner die away from the upper pressing plate, and the bottom sealing assembly is used to cooperate with the inner die and the outer die to perform forming and vulcanizing treatment on the other end of the rubber expansion joint;

[0010] A number of locking components, a number of the locking components are arranged on the inner and outer sides of the outer mold, a plurality of the locking components respectively penetrate through the upper pressing plate and the outer mold and are connected to the bottom sealing component, and the locking components are used to integrally lock the outer mold, the upper pressing plate and the bottom sealing component.

[0011] In some feasible solutions, the inner mold includes:

[0012] At least two split blocks, a plurality of the split blocks are arranged in an annular array inside the outer mold;

[0013] Wherein, a bearing surface, a protrusion and a supporting surface are arranged on the split block, the bearing surface is carried and lapped in the forming groove to realize the forming of one end of the rubber expansion joint;

[0014] The protrusion is located in the forming cavity and is used to form an arc-shaped deformation protrusion of the rubber expansion joint;

[0015] The supporting surface is arranged in the forming cavity, and the supporting surface extends inside the bottom sealing component to realize the forming of the other end of the rubber expansion joint.

[0016] In some feasible solutions, the inner mold is composed of 8 split blocks.

[0017] In some feasible solutions, the bottom sealing component includes:

[0018] A base, the base is sleeved on one end of the outer mold away from the upper pressing plate;

[0019] A lower pressing plate, the lower pressing plate is arranged on the base, and the lower pressing plate is located on the forming cavity of the outer mold;

[0020] Wherein, the lower pressing plate is coaxially arranged with the base, the outer mold, the inner mold and the upper pressing plate.

[0021] In some feasible solutions, a number of first locking blocks are arranged on the outer mold, the first locking blocks are distributed in an annular array along the outside of the outer mold, and a plurality of the first locking blocks are located at one end away from the bottom sealing component;

[0022] A number of second locking blocks are arranged on the outside of the base, and a number of the second locking blocks on the base correspond to the positions of a number of the first locking blocks on the outer mold one by one;

[0023] The locking component includes: a plurality of first locking pieces, the plurality of first locking pieces sequentially penetrate through the first locking block and the second locking block, and the plurality of first locking pieces are used to integrally lock the outer mold and the base outside the outer mold through the first locking block and the second locking block.

[0024] In some feasible solutions, a number of first locking holes are penetrated through the upper pressing plate, and a number of second locking holes are penetrated through the lower pressing plate. The positions of the a number of first locking holes on the upper pressing plate correspond one by one to the positions of the a number of second locking holes on the lower pressing plate;

[0025] The locking assembly further includes: a plurality of second locking members, and the plurality of second locking members sequentially penetrate through the first locking holes and the second locking holes. The plurality of second locking members are used to integrally lock the upper pressing plate and the lower pressing plate inside the outer mold through the first locking holes and the second locking holes.

[0026] In some feasible solutions, the first locking member includes:

[0027] A locking rod, and the locking rod sequentially penetrates through the first locking block and the second locking block;

[0028] Two locking nuts, and the two locking nuts are arranged at both ends of the locking rod. The two locking nuts are respectively threadedly connected to the locking rod;

[0029] Wherein, one of the locking nuts abuts against one surface of the first locking block away from the second locking block, and the other locking nut abuts against one surface of the second locking block away from the first locking block.

[0030] In some feasible solutions, the second locking member includes:

[0031] A locking rod, and the locking rod sequentially penetrates through the first locking hole and the second locking hole;

[0032] Two locking nuts, and the two locking nuts are arranged at both ends of the locking rod. The two locking nuts are respectively threadedly connected to the locking rod;

[0033] Wherein, one of the locking nuts abuts against one surface of the first locking hole away from the second locking hole, and the other locking nut abuts against one surface of the second locking hole away from the first locking hole.

[0034] In some feasible solutions, the locking rod is a screw rod.

[0035] The beneficial effects of the present utility model are:

[0036] By setting the inner mold as a split and detachable structure, placing the inner mold into the outer mold, supporting the inner mold inside the outer mold through the upper pressing plate and the bottom sealing assembly, and at the same time cooperating with the locking assembly to integrally lock the outer mold, the upper pressing plate and the bottom sealing assembly, the inner mold, the outer mold, the upper pressing plate and the bottom sealing assembly form a detachable mold, so that after the rubber expansion joint is vulcanized and formed, the rubber expansion joint can be quickly taken out. That is, it effectively solves the disadvantage of inconvenient disassembly of the expansion joint vulcanization mold in the prior art. Brief Description of the Drawings

[0037] Figure 1 FIG. 1 is a schematic view of the overall structure of a split mold for rubber expansion joint forming provided in an embodiment of the present utility model;

[0038] Figure 2 FIG. 2 is an exploded view of the structure of a split mold for rubber expansion joint forming provided in an embodiment of the present utility model;

[0039] Figure 3 FIG. 3 is a schematic view of the structure of a locking assembly in a split mold for rubber expansion joint forming provided in an embodiment of the present utility model.

[0040] The marks in the figures are shown as follows:

[0041] 1. Outer mold; 11. Forming groove; 12. First locking block; 13. Forming cavity;

[0042] 2. Upper pressing plate; 21. First locking hole;

[0043] 3. Split block; 31. Bearing surface; 32. Protrusion; 33. Support surface;

[0044] 4. Locking assembly; 41. Locking rod; 42. Locking nut;

[0045] 5. Bottom sealing assembly; 51. Base; 511. Second locking block; 52. Lower pressing plate; 521. Second locking hole. Detailed Embodiment

[0046] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.[[ID=,37]]

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0048] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0050] Embodiment

[0051] Refer to Figures 1 to 3, in this embodiment, in order to solve the drawback in the prior art that it is inconvenient to disassemble the expansion joint vulcanization mold after molding, a split mold for rubber expansion joint molding is provided here. The mold includes: an outer mold 1, an upper pressing plate 2, an inner mold, a bottom sealing assembly 5, and several locking assemblies 4. The outer mold 1 is in a sleeve shape, and a molding cavity 13 is provided on the inner wall of the outer mold 1. The molding cavity 13 is used to accommodate the inner mold for rubber expansion joint molding. An upper molding groove 11 is provided above the molding cavity 13 of the outer mold 1. The upper molding groove 11 is used to accommodate one end of the rubber expansion joint for molding. The inner mold is a split and detachable structure. The inner molds are arranged in a circular array in the molding cavity 13, and one end of the inner mold is carried in the upper molding groove 11. The inner mold is used to cooperate with the molding cavity 13 and the upper molding groove 11 in the outer mold 1 for rubber expansion joint vulcanization molding. The upper pressing plate 2 is provided at one end of the outer mold 1. The upper pressing plate 2 is arranged in the upper molding groove 11. The upper pressing plate 2 is located on the side of the inner mold away from the molding cavity 13. The upper pressing plate 2 is used to cooperate with the inner mold and the outer mold 1 to perform molding and vulcanization treatment on one end of the rubber expansion joint. The bottom sealing assembly 5 is provided at the other end of the outer mold 1. The bottom sealing assembly 5 is arranged at the position of the molding cavity 13 away from the upper molding groove 11. The bottom sealing assembly 5 is located on the side of the inner mold away from the upper pressing plate 2. The bottom sealing assembly 5 is used to cooperate with the inner mold and the outer mold 1 to perform molding and vulcanization treatment on the other end of the rubber expansion joint. Several locking assemblies 4 are provided on the inner and outer sides of the outer mold 1. A plurality of the locking assemblies 4 respectively penetrate through the upper pressing plate 2 and the outer mold 1 and are connected to the bottom sealing assembly 5. The locking assemblies 4 are used to integrally lock the outer mold 1, the upper pressing plate 2, and the bottom sealing assembly 5, so as to lock the inner mold inside the upper pressing plate 2, the outer mold 1, and the bottom sealing assembly 5, so as to realize the vulcanization molding of the rubber expansion joint inside the outer mold 1. In this embodiment, by setting the inner mold as a split and detachable structure, placing the inner mold into the outer mold 1, carrying the inner mold inside the outer mold 1 through the upper pressing plate 2 and the bottom sealing assembly 5, and at the same time cooperating with the locking assemblies 4 to integrally lock the outer mold 1, the upper pressing plate 2, and the bottom sealing assembly 5, the inner mold, the outer mold 1, the upper pressing plate 2, and the bottom sealing assembly 5 form a detachable mold, realizing that after the rubber expansion joint is vulcanized and molded, the rubber expansion joint can be quickly taken out. That is, it effectively solves the drawback in the prior art that it is inconvenient to disassemble the expansion joint vulcanization mold after molding.

[0052] Refer to Figure 1 and Figure 2, in this embodiment, the inner mold has a split and detachable structure. Specifically, the inner mold includes at least two split blocks 3. A plurality of the split blocks 3 are arranged in a circular array inside the outer mold 1. The split block 3 is provided with a bearing surface 31, a protrusion 32, and a support surface 33. The bearing surface 31 is carried and lapped in the forming groove 11 to complete the forming of one end of the rubber expansion joint; the protrusion 32 is located in the forming cavity 13 and is used to form the arc-shaped deformation protrusion 32 of the rubber expansion joint; the support surface 33 is arranged in the forming cavity 13, and the support surface 33 extends inside the bottom sealing assembly 5 to complete the forming of the other end of the rubber expansion joint. Preferably, in this embodiment, the inner mold can be composed of 8 split blocks 3.

[0053] Refer to Figure 1 and Figure 2 , in this embodiment, the bottom sealing assembly 5 includes: a base 51 and a lower pressing plate 52. The base 51 is sleeved on one end of the outer mold 1 away from the upper pressing plate 2. The lower pressing plate 52 is arranged on the base 51. The lower pressing plate 52 is located on the forming cavity 13 of the outer mold 1. The lower pressing plate 52 is coaxially arranged with the base 51, the outer mold 1, the inner mold, and the upper pressing plate 2 to enable the base 51 and the lower pressing plate 52 to cooperate with the forming cavity 13 on the outer mold 1 to vulcanize and form the other end of the rubber expansion joint.

[0054] Refer to Figure 2, in this embodiment, in order to strengthen the connection strength of the overall mold, a plurality of first locking blocks 12 are provided on the outer mold 1. The first locking blocks 12 are distributed in an annular array along the outside of the outer mold 1, and a plurality of the first locking blocks 12 are located at one end away from the bottom sealing assembly 5. A plurality of second locking blocks 511 are provided on the outside of the base 51. A plurality of the second locking blocks 511 on the base 51 correspond to a plurality of the first locking blocks 12 on the outer mold 1 in position one by one. A plurality of first locking holes 21 are provided through the upper pressing plate 2, and a plurality of second locking holes 521 are provided through the lower pressing plate 52. A plurality of the first locking holes 21 on the upper pressing plate 2 correspond to a plurality of the second locking holes 521 on the lower pressing plate 52 in position one by one. The locking assembly 4 includes: a plurality of first locking members and second locking members. The plurality of first locking members sequentially penetrate through the first locking block 12 and the second locking block 511. The plurality of first locking members are used to integrally lock the outer mold 1 and the base 51 outside the outer mold 1 through the first locking block 12 and the second locking block 511. The plurality of second locking members sequentially penetrate through the first locking hole 21 and the second locking hole 521. The plurality of second locking members are used to integrally lock the upper pressing plate 2 and the lower pressing plate 52 inside the outer mold 1 through the first locking hole 21 and the second locking hole 521. In this embodiment, the structures of the first locking member and the second locking member are the same. For the convenience of describing the structures of the first locking member and the second locking member, a specific first locking member is taken as an example for illustration. Specifically, the first locking member includes: a locking rod 41 and two locking nuts 42. The locking rod 41 sequentially penetrates through the first locking block 12 and the second locking block 511. The two locking nuts 42 are arranged at both ends of the locking rod 41. The two locking nuts 42 are respectively threadedly connected to the locking rod 41. Among them, one locking nut 42 abuts against one surface of the first locking block 12 away from the second locking block 511, and the other locking nut 42 abuts against one surface of the second locking block 511 away from the first locking block 12, so as to integrally lock the outer mold 1 and the base 51 outside the outer mold 1 through the first locking block 12 and the second locking block 511. That is to say, the second locking member also includes: a locking rod 41 and two locking nuts 42. The locking rod 41 sequentially penetrates through the first locking hole 21 and the second locking hole 521. The two locking nuts 42 are arranged at both ends of the locking rod 41. The two locking nuts 42 are respectively threadedly connected to the locking rod 41. Among them, one locking nut 42 abuts against one surface of the first locking hole 21 away from the second locking hole 521, and the other locking nut 42 abuts against one surface of the second locking hole 521 away from the first locking hole 21, so as to integrally lock the upper pressing plate 2 and the lower pressing plate 52 inside the outer mold 1 through the first locking hole 21 and the second locking hole 521. Preferably, the locking rod 41 is a screw rod.

[0055] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A split mold for rubber expansion joint forming, characterized in that Comprising: An outer mold, the outer mold is in a sleeve shape, an inner wall of the outer mold is provided with a forming cavity, and a forming groove is arranged above the forming cavity of the outer mold; An inner mold, the inner mold is a split and detachable structure, the inner mold is arranged in an annular array in the forming cavity, and one end of the inner mold is carried in the forming groove, and the inner mold is used to cooperate with the forming cavity and the forming groove in the outer mold to vulcanize and form a rubber expansion joint; An upper pressing plate, the upper pressing plate is arranged at one end of the outer mold, the upper pressing plate is arranged in the forming groove, the upper pressing plate is located on a surface of the inner mold away from the forming cavity, and the upper pressing plate is used to cooperate with the inner mold and the outer mold to vulcanize and form one end of the rubber expansion joint; A bottom sealing assembly, the bottom sealing assembly is arranged at the other end of the outer mold, the bottom sealing assembly is arranged at a position where the forming cavity is away from the forming groove, the bottom sealing assembly is located on a surface of the inner mold away from the upper pressing plate, and the bottom sealing assembly is used to cooperate with the inner mold and the outer mold to vulcanize and form the other end of the rubber expansion joint; A plurality of locking assemblies, a plurality of the locking assemblies are arranged on the inner and outer sides of the outer mold, and a plurality of the locking assemblies respectively penetrate through the upper pressing plate and the outer mold and are connected to the bottom sealing assembly, and the locking assemblies are used to integrally lock the outer mold, the upper pressing plate and the bottom sealing assembly.

2. The split mold for rubber expansion joint forming according to claim 1, characterized in that, The inner mold includes: At least two split blocks, and a plurality of the split blocks are arranged in an annular array inside the outer mold; ​ ​ ​ 3. The split die for rubber expansion joint forming according to claim 2, characterized in that ​ 4. A split mold for rubber expansion joint molding according to claim 1, characterized in that ​ ​ ​ ​ 5. The split die for rubber expansion joint forming according to claim 4, characterized in that, ​ ​ ​ 6. A split mold for rubber expansion joint forming according to claim 5, characterized in that, ​ The locking assembly further includes: a plurality of second locking members, the plurality of second locking members sequentially penetrate through the first locking hole and the second locking hole, and the plurality of second locking members are used to integrally lock the upper pressing plate and the lower pressing plate inside the outer mold through the first locking hole and the second locking hole.

7. A split mold for rubber expansion joint forming according to claim 6, characterized in that, The first locking member includes: a locking rod, the locking rod sequentially penetrates through the first locking block and the second locking block; two locking nuts, the two locking nuts are arranged at both ends of the locking rod, and the two locking nuts are respectively threadedly connected to the locking rod; wherein, one of the locking nuts abuts against one surface of the first locking block away from the second locking block, and the other locking nut abuts against one surface of the second locking block away from the first locking block.

8. A split mold for rubber expansion joint forming according to claim 6, characterized in that, The second locking member includes: a locking rod, the locking rod sequentially penetrates through the first locking hole and the second locking hole; two locking nuts, the two locking nuts are arranged at both ends of the locking rod, and the two locking nuts are respectively threadedly connected to the locking rod; wherein, one of the locking nuts abuts against one surface of the first locking hole away from the second locking hole, and the other locking nut abuts against one surface of the second locking hole away from the first locking hole.

9. A split mold for rubber expansion joint forming according to claim 7 or 8, characterized in that, The locking rod is a screw rod.

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