A deformation-resistant stiffener structure for a pipe welding die

By introducing support pipes and reinforcing pipes into the welded pipe mold, and combining this with water flow for cooling, the deformation problem of the mold under high pressure and high temperature was solved, thus achieving both deformation resistance and cooling effect.

CN224295133UActive Publication Date: 2026-05-29扬州东仑机械制造有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
扬州东仑机械制造有限公司
Filing Date
2025-06-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Conventional welded pipe molds are prone to deformation during production due to pressure and high temperature, especially the thinner edges of the concave surface of the mold, which can cause production inconvenience.

Method used

A deformation-resistant reinforcing rib structure for welded pipe molds is designed, including a support pipe and a reinforcing pipe. The mold is cooled by water flow, and the support pipe and reinforcing pipe support the edge of the mold to improve its compressive strength. At the same time, the flow mechanism is used for heat exchange and cooling.

Benefits of technology

It effectively reduces the thermal and pressure deformation of the mold, improves the mold's pressure resistance and cooling effect, and ensures the stability of the welded pipe production process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to welded tube mould technical field, concretely is a kind of welded tube mould's anti-deformation stiffener structure, including the water hole of multiple circumferential arrangements being set up in one side of mould body, shaft cylinder fixed sleeve is connected in the mould body inside, cooling mechanism is fixedly connected with the mould body, the cooling mechanism includes two box bodies, and two box bodies are all ring type. In the utility model, the edge of mould body is supported by using multiple support tubes and reinforcing tubes, the compression resistance of the edge of mould body is improved, one annular shell on two flow mechanisms is connected into water pipe, another annular shell on pipe body is connected into drain pipe, water flows through adjacent support tube and reinforcing tube after flowing through water inlet hole, and water flows through connecting pipe and can be discharged from drain pipe after flowing through water hole and two box bodies, so that the mould body is cooled by using flowing water, so as to reduce the hot deformation of mould.
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Description

Technical Field

[0001] This utility model relates to the field of welded pipe mold technology, specifically a deformation-resistant reinforcing rib structure for welded pipe molds. Background Technology

[0002] Welded pipe molds are specialized equipment used to produce welded steel pipes. Metal welded pipes can be produced using high-frequency methods. Metal sheets are placed into the machine body, and then the sheets are moved through different welded pipe molds and bent into pipe blanks. The pipe blanks are then heated by high-frequency induction coils, and the molten edges are pressed together by extrusion rollers to form a weld. The welded pipe is then cooled by a cooling device to solidify and shape. However, conventional welded pipe molds often have an arc-shaped concave outer wall. Production requires the raw material to pass through the concave surface of the mold for forming. During the forming process, the mold needs to withstand significant pressure to press the sheet metal into shape. The concave edge of some molds is relatively thin, making them susceptible to deformation under pressure, which is inconvenient. Furthermore, during pipe blank welding, the pipe blank generates high temperatures, which can cause the mold to heat up and deform, further complicating the process. Utility Model Content

[0003] The purpose of this utility model is to provide a deformation-resistant reinforcing rib structure for welded pipe molds to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A deformation-resistant reinforcing rib structure for a welded pipe mold includes:

[0006] The mold body comprises a cylinder that can be connected to a drive shaft, a cooling mechanism for cooling the mold body, and two flow mechanisms. The mold body has multiple circumferentially arranged water passages on one side. The cylinder is fixedly fitted inside the mold body. The cooling mechanism is fixedly connected to the mold body and includes two ring-shaped boxes located on opposite sides of the mold body. Multiple fixed pipes are fixedly connected to one side of each box, and each fixed pipe corresponds to one of the water passages. Each fixed pipe is fixedly fitted inside the corresponding water passage. The two flow mechanisms are located on opposite sides of the mold body.

[0007] Furthermore, the mold body has multiple circumferentially arranged support tubes fixedly connected to both sides, and one end of each support tube is fixedly connected to the outer wall of the shaft cylinder.

[0008] Furthermore, the flow mechanism includes:

[0009] The system comprises two annular shells, two retaining rings, and two tubes. Each of the two annular shells has an annular groove on one side. One side of one annular shell is fixedly connected to the end of an adjacent shaft cylinder. The two retaining rings are rotatably fitted into the annular grooves on the two annular shells. One end of each of the two tubes is fixedly connected to the two retaining rings. The interior of any tube is connected to the interior of the adjacent annular shell.

[0010] Furthermore, multiple connecting pipes are fixedly connected to the inner side walls of both boxes. One end of each connecting pipe on one box is fixedly connected to an annular shell on an adjacent flow mechanism, and one end of each connecting pipe on the other box is fixedly connected to another annular shell on an adjacent flow mechanism.

[0011] Furthermore, multiple L-shaped water inlets are provided at both ends of the shaft cylinder, and each water inlet corresponds to a multiple support pipe. The interior of any water inlet is connected to the interior of the corresponding support pipe, and the interior of any water inlet is connected to the interior of the adjacent annular shell.

[0012] Furthermore, in any flow mechanism, multiple reinforcing tubes are fixedly connected to the other side of the other annular shell. Each reinforcing tube on any flow mechanism corresponds one-to-one with a number of adjacent supporting tubes. One end of each reinforcing tube is fixedly connected to the other end of the corresponding supporting tube, and the interior of each reinforcing tube is connected to the interior of the corresponding supporting tube.

[0013] Furthermore, each reinforcing tube is arranged at an angle.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By using multiple support pipes and reinforcing pipes to support the edges of the mold body, the compressive strength of the mold body edges is improved. At the same time, the pipe on one annular shell of the flow mechanism is connected to the water inlet pipe, and the pipe on the other annular shell is connected to the drain pipe. After the water flows into one annular shell, it flows through the water inlet hole, through the adjacent support pipe and reinforcing pipe, and then into the interior of the other annular shell, and is discharged from the drain pipe. This keeps the water flowing to cool the mold body. The water flows through the connecting pipe, through the water passage hole and the two boxes, and can be discharged from the drain pipe. Thus, the flowing water exchanges heat with the mold body to cool the mold body and reduce the thermal deformation of the mold. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the support tube and box structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the reinforcing tube, retaining ring, and annular shell structure in this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram showing the positional relationship between the retaining ring and the annular shell in this utility model;

[0020] Figure 5 This is a schematic diagram showing the positional relationship between the box body and the annular shell in this utility model.

[0021] In the figure: 100, mold body; 101, water passage hole; 200, shaft cylinder; 210, support tube; 300, cooling mechanism; 310, box body; 320, connecting tube; 400, flow mechanism; 410, annular shell; 420, retaining ring; 430, tube body; 440, reinforcing tube. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 In this embodiment of the utility model, a deformation-resistant reinforcing rib structure for a welded pipe mold includes:

[0024] The mold body 100, the shaft cylinder 200 which can be connected to the drive shaft, the cooling mechanism 300 which can cool the mold body 100, and the two flow mechanisms 400 are provided. The mold body 100 has multiple circumferentially arranged water holes 101 on one side. The shaft cylinder 200 is fixedly sleeved inside the mold body 100. The cooling mechanism 300 is fixedly connected to the mold body 100. The cooling mechanism 300 includes two boxes 310, and both boxes 310 are annular. The two boxes 310 are located on opposite sides of the mold body 100. Multiple fixed tubes are fixedly connected to one side of each box 310. The multiple fixed tubes on each box 310 correspond one-to-one with the multiple water holes 101. Each fixed tube is fixedly sleeved inside the corresponding water hole 101. The two flow mechanisms 400 are located on opposite sides of the mold body 100.

[0025] Specifically, in use, the shaft sleeve 200 is installed on the drive shaft, and then the mold body 100 is used to shape the welded pipe. Water can be injected into one box 310, and the water flows through multiple water holes 101 and is discharged from another box 310, thereby cooling the mold body 100 and reducing the overall temperature of the mold body 100. This reduces the possibility of thermal deformation of the mold body 100 due to the heat of the welded pipe. Since the welded pipe is heated by high frequency and its temperature remains high, and the contact area between the welded pipe and a single mold body 100 is small, and the welded pipe is in a moving state during production, the cooling of the mold body 100 has a small impact on the welded pipe. Therefore, the thermal deformation of the mold body 100 can be reduced by cooling the mold body 100.

[0026] Example 1

[0027] like Figure 1-5 As shown, in this embodiment, multiple circumferentially arranged support tubes 210 are fixedly connected to both sides of the mold body 100, and one end of each support tube 210 is fixedly connected to the outer wall of the shaft cylinder 200. The flow mechanism 400 includes:

[0028] The system comprises two annular shells 410, two retaining rings 420, and two tubes 430. Each of the two annular shells 410 has an annular groove on one side. One side of one annular shell 410 is fixedly connected to the end of the adjacent shaft cylinder 200. The two retaining rings 420 are rotatably fitted into the annular grooves on the two annular shells 410. One end of each of the two tubes 430 is fixedly connected to the two retaining rings 420. The interior of each tube 430 is connected to the interior of the adjacent annular shell 410. Multiple connecting pipes 320 are fixedly connected to the inner sidewalls of the two boxes 310. One end of each of the multiple connecting pipes 320 on one box 310 is fixedly connected to one annular shell 410 on the adjacent flow mechanism 400, and one end of each of the multiple connecting pipes 320 on the other box 310 is fixedly connected to the other annular shell 410 on the adjacent flow mechanism 400.

[0029] In this embodiment, multiple support pipes 210 are used to support the edge of the mold body 100, thereby improving the bearing capacity of the edge of the mold body 100 and reducing the impact of the pressure generated by the deformation of the welded pipe when it passes through the mold body 100 on the edge of the mold body 100. One annular shell 410 on any flow mechanism 400 is located inside another annular shell 410. Water is injected by connecting the water inlet pipe to the pipe 430 on one annular shell 410 of one flow mechanism 400 and connecting the drain pipe to the pipe 430 on another annular shell 410 of another flow mechanism 400. Water flows into the interior of one annular shell 410 and flows along the adjacent connecting pipe 320 into the interior of one box 310. Then, the water flows through the water passage hole 101 and enters the interior of another box 310. It is discharged from the pipe 430 on another annular shell 410 of another flow mechanism 400 through the connecting pipe 320. This keeps the water flowing through the water passage hole 101 in a flowing state, thereby cooling the mold body 100.

[0030] like Figure 1-3 As shown, in this embodiment, multiple L-shaped water inlets are provided at both ends of the shaft cylinder 200, and the multiple water inlets correspond one-to-one with multiple support pipes 210. The interior of any water inlet is connected to the interior of the corresponding support pipe 210, and the interior of any water inlet is connected to the interior of the adjacent annular shell 410.

[0031] In specific implementation, by connecting the pipes 430 on one annular shell 410 of the two flow mechanisms 400 to water inlet pipes and the pipes 430 on the other annular shell 410 to drain pipes, water can flow into the interior of the adjacent support pipe 210 through the water inlet hole and be discharged from the hole at the other end of the support pipe 210. This allows the water flow inside the support pipe 210 to cool the mold body 100, improving the cooling effect on the mold body 100. When the mold body 100 rotates, it will drive the support pipe 210, reinforcing pipe 440, any annular shell 410, and any box 310 to rotate synchronously. The user can fix the water inlet pipe and the drain pipe to keep the adjacent retaining ring 420 fixed and the adjacent annular shell 410 to rotate with the mold body 100, so that the rotation of the mold body 100 will not easily affect the connection status of the water inlet pipe, the drain pipe, and the adjacent pipes 430.

[0032] Example 2

[0033] Based on Example 1, the pressure-bearing capacity of the mold body 100 is improved by setting a reinforcing tube 440.

[0034] like Figure 1-3As shown, in this embodiment, multiple reinforcing tubes 440 are fixedly connected to the other side of the other annular shell 410 in any flow mechanism 400. The multiple reinforcing tubes 440 on any flow mechanism 400 correspond one-to-one with the multiple adjacent supporting tubes 210. One end of each reinforcing tube 440 is fixedly connected to the other end of the corresponding supporting tube 210. The interior of each reinforcing tube 440 is connected to the interior of the corresponding supporting tube 210. Each reinforcing tube 440 is arranged at an angle.

[0035] In specific implementation, by connecting the reinforcing pipe 440 to the adjacent support pipe 210, the reinforcing pipe 440 provides auxiliary support to the support pipe 210, thereby improving the support effect of the support pipe 210 on the edge of the mold body 100, thus improving the pressure bearing capacity of the edge of the mold body 100. Furthermore, by connecting the reinforcing pipe 440 to the adjacent support pipe 210, the water flowing through the water inlet hole and through the support pipe 210 can flow into the reinforcing pipe 440 and into the interior of another annular shell 410 in the adjacent flow mechanism 400, thereby draining the water and collecting the drained water, preventing water from dripping onto the surface of the welded pipe and affecting the welded pipe.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A deformation-resistant reinforcing rib structure for a welded pipe mold, characterized in that, include: The mold body (100) has multiple circumferentially arranged water passage holes (101) on one side. The shaft sleeve (200) is fixedly sleeved inside the mold body (100); The cooling mechanism (300) is fixedly connected to the mold body (100). The cooling mechanism (300) includes two boxes (310), both of which are ring-shaped. The two boxes (310) are located on opposite sides of the mold body (100). Multiple fixed tubes are fixedly connected to one side of any box (310). The multiple fixed tubes on any box (310) correspond one-to-one with multiple water holes (101). Each fixed tube is fixedly sleeved inside the corresponding water hole (101). Two flow mechanisms (400) are located on opposite sides of the mold body (100).

2. The anti-deformation reinforcing rib structure of the welded pipe mold according to claim 1, characterized in that, The mold body (100) has multiple circumferentially arranged support tubes (210) fixedly connected to both sides, and one end of any support tube (210) is fixedly connected to the outer wall of the shaft cylinder (200).

3. The anti-deformation reinforcing rib structure of the welded pipe mold according to claim 2, characterized in that, The flow mechanism (400) includes: Two annular shells (410) each have an annular groove on one side, and one side of one annular shell (410) is fixedly connected to the end of the adjacent shaft cylinder (200); Two retaining rings (420) are respectively rotatably fitted into the annular grooves on the two annular shells (410); Two tubes (430) are fixedly connected at one end to two retaining rings (420), and the interior of either tube (430) is connected to the interior of the adjacent annular shell (410).

4. The anti-deformation reinforcing rib structure of the welded pipe mold according to claim 3, characterized in that, The shaft (200) has multiple L-shaped water inlets at both ends, and each water inlet corresponds to a support pipe (210). The interior of any water inlet is connected to the interior of the corresponding support pipe (210), and the interior of any water inlet is connected to the interior of the adjacent annular shell (410).

5. The anti-deformation reinforcing rib structure of the welded pipe mold according to claim 4, characterized in that, Multiple reinforcing tubes (440) are fixedly connected to the other side of the other annular shell (410) in any flow mechanism (400). The multiple reinforcing tubes (440) on any flow mechanism (400) correspond one-to-one with the multiple adjacent supporting tubes (210). One end of any reinforcing tube (440) is fixedly connected to the other end of the corresponding supporting tube (210). The interior of any reinforcing tube (440) is connected to the interior of the corresponding supporting tube (210).

6. The anti-deformation reinforcing rib structure of the welded pipe mold according to any one of claims 3-5, characterized in that, Multiple connecting pipes (320) are fixedly connected to the inner sidewalls of both boxes (310). One end of each connecting pipe (320) on one box (310) is fixedly connected to an annular shell (410) on the adjacent flow mechanism (400), and one end of each connecting pipe (320) on the other box (310) is fixedly connected to another annular shell (410) on the adjacent flow mechanism (400).

7. The anti-deformation reinforcing rib structure of the welded pipe mold according to claim 5, characterized in that, All reinforcing tubes (440) are arranged at an angle.