A crack-proof magnesium oxide tube extrusion die

Abstract

The utility model discloses an anti-cracking magnesium oxide tube extrusion die, comprising an extrusion cone, a molding die mouth connected to the right end of the extrusion cone, a molding die is arranged inside the molding die mouth, a core rod bracket is fixedly connected to the inner side of the left end of the molding die, a core rod is installed on the core rod bracket, four connecting grooves are arranged at the right end of the molding die mouth, a limiting block is fixedly connected to the inner wall of each connecting groove, four connecting blocks are fixedly connected to the side wall of the molding die close to the connecting groove, and a locking mechanism extending to the inside of one of the connecting grooves is arranged on the upper side wall of the molding die mouth. The advantage is that the molding die can be connected and installed inside the molding die mouth, so that the molding die and the molding die mouth can be conveniently disassembled and assembled, and the connecting block can be locked inside the connecting groove by setting a locking mechanism, further ensuring the stability of the installation connection between the molding die and the molding die mouth.

Description

Technical Field

[0001] The utility model relates to the technical field of magnesium oxide tube processing, in particular to an anti-cracking magnesium oxide tube extrusion die. Background Art

[0002] The process of extrusion molding to make magnesium oxide tubes is relatively mature, but there are some problems to be solved, especially the problem of double-hole magnesium oxide tubes being prone to cracking in the middle, which has always troubled manufacturers.

[0003] The patent with the publication number CN218905812U and the name of a crack-proof magnesium oxide tube extrusion die, an anti-cracking magnesium oxide tube extrusion die, includes an extrusion cone and a molding die mouth, the extrusion cone and the molding die mouth are connected, and is characterized in that a molding die is installed in the molding die mouth, and the molding die is used for molding magnesium oxide. In order to ensure that the materials can be bonded together during the extrusion process, a groove is provided on the left side of the molding die, and a core rod bracket is fixedly connected in the groove. In this patent, the molding die mouth and the molding die are connected by threads, which makes the disassembly and assembly process of the molding die not convenient and fast enough, and thus the replacement of the molding die is not convenient enough. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an anti-cracking magnesium oxide tube extrusion die.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A crack-proof magnesium oxide tube extrusion die comprises an extrusion cone and a molding die mouth connected to the right end of the extrusion cone, a molding die is arranged inside the molding die mouth, a core rod support is fixedly connected to the inner side of the left end of the molding die, a core rod is mounted on the core rod support, four connecting grooves are arranged at the right end of the molding die mouth, a limiting block is fixedly connected to the inner wall of each connecting groove, four connecting blocks are fixedly connected to the side wall of the molding die close to the connecting groove, a locking mechanism extending to the inside of one of the connecting grooves is arranged on the upper side wall of the molding die mouth, the locking mechanism comprises a locking rod penetrating the upper side wall of the molding die mouth, the locking rod is slidably connected to the molding die mouth, the locking rod extends to the inside of the connecting groove, a locking hole matching the locking rod is penetrated on one of the connecting blocks, a tension spring is sleeved on the locking rod, one end of the tension spring is fixedly connected to the side wall of the locking rod, the other end of the tension spring is fixedly connected to the side wall of the molding die mouth, and a pull rod is fixedly connected to one end of the locking rod located outside the molding die mouth.

[0007] In order to better achieve the above purpose, the utility model adopts a further technical solution: the four connecting grooves are distributed at equal intervals along the circumference of the molding die opening, and the four connecting blocks are distributed at equal intervals along the circumference of the molding die.

[0008] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the limit block and the inner wall of the connecting groove are integrally formed.

[0009] In order to better achieve the above purpose, the utility model adopts a further technical solution: a groove is provided on the inner wall of the left end of the forming mold, and the core rod bracket is fixedly connected to the inside of the groove.

[0010] The advantages of the utility model are: the molding die can be connected and installed inside the molding die mouth, so that the molding die and the molding die mouth can be conveniently disassembled and assembled, and by setting a locking mechanism, the connecting block can be locked inside the connecting groove, further ensuring the stability of the installation connection between the molding die and the molding die mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural schematic diagram of an anti-cracking magnesium oxide tube extrusion die proposed by the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of a mandrel support and a mandrel of an anti-cracking magnesium oxide tube extrusion die proposed by the utility model;

[0013] Figure 3 This is a structural schematic diagram of an extrusion cone, a forming die mouth, a connecting groove, and a limit block of an anti-cracking magnesium oxide tube extrusion die proposed by the utility model;

[0014] Figure 4 This is a structural schematic diagram of a forming die, a connecting block, a locking hole, and a groove of an anti-cracking magnesium oxide tube extrusion die proposed by the utility model;

[0015] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0016] In the figure: 1 extrusion cone, 2 molding die mouth, 3 molding die, 4 core rod bracket, 5 connecting groove, 6 limit block, 7 groove, 8 connecting block, 9 locking hole, 10 locking rod, 11 tension spring, 12 pull rod, 13 core rod. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] Figure 1-Figure 5As shown, an anti-cracking magnesium oxide tube extrusion die comprises an extrusion cone 1, a molding die mouth 2 connected to the right end of the extrusion cone 1, a molding die 3 is arranged inside the molding die mouth 2, a core rod bracket 4 is fixedly connected to the inner side of the left end of the molding die 3, a core rod 13 is installed on the core rod bracket 4, a groove 7 is arranged on the inner wall of the left end of the molding die 3, the core rod bracket 4 is fixedly connected to the inside of the groove 7, four connecting grooves 5 are arranged on the right end of the molding die mouth 2, a limiting block 6 is fixedly connected to the inner wall of each connecting groove 5, the limiting block 6 and the inner wall of the connecting groove 5 are integrally formed, four connecting blocks 8 are fixedly connected to the side wall of the molding die 3 close to the connecting groove 5, and the four connecting grooves 5 are equidistant along the circumference of the molding die mouth 2 The four connecting blocks 8 are evenly spaced along the circumference of the forming mold 3. The upper side wall of the forming mold mouth 2 is provided with a locking mechanism extending to the inside of one of the connecting grooves 5. The locking mechanism includes a locking rod 10 which is arranged on the upper side wall of the forming mold mouth 2. The locking rod 10 is slidably connected to the forming mold mouth 2. The locking rod 10 extends to the inside of the connecting groove 5. A locking hole 9 which cooperates with the locking rod 10 is penetrated on one of the connecting blocks 8. A tension spring 11 is sleeved on the locking rod 10. One end of the tension spring 11 is fixedly connected to the side wall of the locking rod 10, and the other end of the tension spring 11 is fixedly connected to the side wall of the forming mold mouth 2. The end of the locking rod 10 located outside the forming mold mouth 2 is fixedly connected to a pull rod 12.

[0019] During use, when the molding mold 3 needs to be disassembled, the locking rod 10 is pulled outward by the pull rod 12, so that the locking rod 10 moves out of the locking hole 9, and the lock on the connecting block 8 is released. By rotating the molding mold 3 in the opposite direction, the limit block 6 on the connecting block 8 is released, and the molding mold 3 can be disassembled outward.

Claims

1. An anti-cracking magnesium oxide tube extrusion die, comprising an extrusion cone (1), and a molding die opening (2) connected to the right end of the extrusion cone (1), characterized in that: A forming die (3) is provided inside the forming die opening (2); a core rod support (4) is fixedly connected to the inner side of the left end of the forming die (3); a core rod (13) is mounted on the core rod support (4); four connecting grooves (5) are provided at the right end of the forming die opening (2); a limiting block (6) is fixedly connected to the inner wall of each connecting groove (5); four connecting blocks (8) are fixedly connected to the side wall of the forming die (3) close to the connecting groove (5); a locking mechanism extending into one of the connecting grooves (5) is provided on the upper side wall of the forming die opening (2); the locking mechanism comprises a locking member (8) which is arranged through the forming die opening (2); A locking rod (10) is provided on the upper side wall of the mold opening (2), wherein the locking rod (10) is slidably connected to the molding mold opening (2), and the locking rod (10) extends to the inside of the connecting groove (5), wherein one of the connecting blocks (8) is provided with a locking hole (9) which cooperates with the locking rod (10), and a tension spring (11) is sleeved on the locking rod (10), wherein one end of the tension spring (11) is fixedly connected to the side wall of the locking rod (10), and the other end of the tension spring (11) is fixedly connected to the side wall of the molding mold opening (2), and the end of the locking rod (10) located outside the molding mold opening (2) is fixedly connected to a pull rod (12).

2. The anti-cracking magnesium oxide tube extrusion die according to claim 1, characterized in that: The four connection grooves (5) are distributed at equal intervals along the circumference of the molding die opening (2), and the four connection blocks (8) are distributed at equal intervals along the circumference of the molding die (3).

3. The anti-cracking magnesium oxide tube extrusion die according to claim 1, characterized in that: The limiting block (6) is integrally formed with the inner wall of the connecting groove (5).

4. The anti-cracking magnesium oxide tube extrusion die according to claim 1, characterized in that: A groove (7) is provided on the inner wall of the left end of the molding die (3), and the core rod support (4) is fixedly connected inside the groove (7).

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