A double-end bellows bending mechanism

By designing a double-headed corrugated pipe bending mechanism, and utilizing a lifting cylinder to drive the bending die to flip and the positioning die to cooperate, the deformation problem during the corrugated pipe bending process was solved, achieving efficient production and quality improvement.

CN224542800UActive Publication Date: 2026-07-24SUZHOU SHENGYU AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU SHENGYU AUTO PARTS CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing bending machines are prone to flattening or bending at non-bending locations during the bending process of metal corrugated pipes, which affects product quality and increases costs.

Method used

Design a double-headed corrugated pipe bending mechanism, including a base plate, a support seat, a bending seat assembly, a bending drive assembly, and a pressing and positioning assembly. The bending die is rotated and the positioning die is engaged by a lifting cylinder to achieve precise bending of the corrugated pipe.

Benefits of technology

This achieves efficient production, avoids or reduces corrugated pipe bending deformation, improves the bending quality of corrugated pipe, and reduces operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of double-end corrugated pipe bending mechanism, including bottom plate, support seat, bending seat component, bending drive component and pressing positioning component, the bottom plate horizontal distribution, the support seat is fixed in the square arch structure on the top of bottom plate, the lateral end middle part of support seat is provided with a long strip-shaped avoidance slot, the bending seat component is correspondingly set in support seat top and located above avoidance slot, the bending drive component is set in support seat inside and the lower part of drive end in avoidance slot is located with bending seat component, the pressing positioning component is fixed on the bottom plate of support seat rear side and with bending seat component upper and lower correspondence. The utility model has many advantages, such as simple structure, strong stability, simple operation, low operating cost and high production efficiency, realize efficient production, avoid or reduce corrugated pipe bending deformation, improve corrugated pipe bending quality.
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Description

Technical Field

[0001] This utility model relates to a double-headed corrugated pipe bending mechanism. Background Technology

[0002] Corrugated pipe is a type of pipe with a regular wavy shape, mainly made of metal materials such as carbon steel, stainless steel, steel lined with plastic, and aluminum. In the current technology, it is necessary to bend metal corrugated pipes in some situations. However, existing bending machines are prone to flattening or bending at non-bending positions during the bending process of metal corrugated pipes, which affects the quality of the product and also increases the cost of enterprises to a certain extent. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a double-headed corrugated pipe bending mechanism, which has many advantages such as simple structure, strong stability, simple operation, low operating cost and high production efficiency, so as to achieve efficient production, while avoiding or reducing the bending deformation of corrugated pipe and improving the bending quality of corrugated pipe.

[0004] To solve the above-mentioned technical problems, the present invention provides a double-headed corrugated pipe bending mechanism, including a base plate, a support seat, a bending seat assembly, a bending drive assembly, and a pressing and positioning assembly. The base plate is horizontally distributed, and the support seat is fixed above the base plate in a square arch structure. A long strip-shaped clearance groove is provided in the middle of the horizontal end of the support seat. The bending seat assembly is correspondingly disposed on the top of the support seat and located above the clearance groove. The bending drive assembly is disposed inside the support seat, and the driving end is located in the clearance groove and corresponds to the lower part of the bending seat assembly. The pressing and positioning assembly is fixed on the base plate on the rear side of the support seat and corresponds vertically to the bending seat assembly.

[0005] In a preferred embodiment of the present invention, handles are provided on both sides of the upper surface of the base plate.

[0006] In a preferred embodiment of the present invention, the bending seat assembly includes a bending positioning plate, a bending die, and a fixed shaft.

[0007] In a preferred embodiment of this utility model, two bending positioning plates are provided and fixed in parallel to each other on both sides of the clearance groove, and two bending dies are provided and connected in the middle and fixed between the two bending positioning plates by a fixing shaft.

[0008] In a preferred embodiment of the present invention, the bottoms of the two bending dies cover the top of the clearance groove.

[0009] In a preferred embodiment of the present invention, the bending drive assembly includes a lifting cylinder, a lifting plate, and a lifting block.

[0010] In a preferred embodiment of the present invention, the driving end of the lifting cylinder is distributed upward and a horizontally distributed lifting plate is provided on the top. The lifting plate is provided with vertically distributed lifting blocks on both sides of the top, and the two lifting blocks are located at both ends inside the clearance groove.

[0011] In a preferred embodiment of the present invention, the pressing and positioning assembly includes a mounting bracket, a quick-pressing clamp, a linear guide rail, and a positioning mold.

[0012] In a preferred embodiment of this utility model, the mounting bracket is longitudinally fixed on the base plate, the quick clamp is fixed on the upper part of the mounting bracket and the clamping end moves longitudinally downward, a positioning mold with an inverted triangular structure is provided below the clamping end of the quick clamp, the linear guide rail is longitudinally fixed on the mounting bracket below the quick clamp, the positioning mold is slidably disposed on the linear guide rail, and the positioning mold is located between two bending dies.

[0013] The beneficial effects of this utility model are: the double-headed corrugated pipe bending mechanism disclosed in this utility model has many advantages such as simple structure, strong stability, simple operation, low operating cost and high production efficiency, realizing efficient production, while avoiding or reducing corrugated pipe bending deformation and improving the bending quality of corrugated pipe. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a perspective view of a preferred embodiment of a double-headed corrugated pipe bending mechanism of the present invention; Figure 2 yes Figure 1 Front sectional view. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] Please see Figures 1-2 As shown, the embodiments of this utility model include: A double-headed corrugated pipe bending mechanism includes a base plate 1, a support base 2, a bending base assembly, a bending drive assembly, and a pressing and positioning assembly.

[0017] The base plate 1 is placed horizontally on the workbench, and handles 3 are provided on both sides of the upper surface of the base plate 1 for easy handling.

[0018] The support base 2 is fixed above the base plate 1 in the form of a square arch structure to form a support installation structure.

[0019] The support base 2 has a long strip-shaped clearance groove 4 at the middle of its horizontal end to facilitate the passage of the bending drive component.

[0020] The bending seat assembly is correspondingly disposed on the top of the support seat 2 and above the clearance groove 4, and is used to provide bottom positioning for bending the corrugated pipe 16, including bending positioning plate 5, bending die 6 and fixed shaft 7.

[0021] Two bending positioning plates 5 are provided and fixed in parallel on both sides of the clearance groove 4 to provide fixed support on both sides.

[0022] Two bending dies 6 are provided and are hinged in the middle and fixed between the two bending positioning plates 5 by a fixed shaft 7, so that the two bending dies 6 can be flipped upward around the fixed shaft 7.

[0023] The bottoms of the two bending dies 6 are respectively covered above the relief groove 4 to prevent them from falling out of the relief groove 4, while ensuring that the bending die 6 has sufficient bottom support position.

[0024] The bending drive assembly is located inside the support base 2 and the drive end is located in the clearance groove 4 corresponding to the lower part of the bending base assembly. It is used to lift the bottom of the outer ends of the two bending dies 6 and includes a lifting cylinder 8, a lifting plate 9 and a lifting block 10.

[0025] The driving end of the lifting cylinder 8 is distributed upward and the top is provided with a horizontally distributed lifting plate 9. The top two sides of the lifting plate 9 are provided with vertically distributed lifting blocks 10. The two lifting blocks 10 are located at both ends inside the clearance groove 4. The lifting cylinder 8 synchronously drives the two lifting blocks 10 to pass through the clearance groove 4 and lift the bottom of the outer ends of the two bending dies 6.

[0026] The pneumatic switch 11 of the lifting cylinder 8 is fixed on the side of the support base 2 for easy operation.

[0027] The pressing and positioning assembly is fixed on the base plate 1 on the rear side of the support 2 and corresponds vertically to the bending seat assembly. It is used to position the top of the corrugated pipe 16 for bending. It includes a mounting bracket 12, a quick clamp 13, a linear guide rail 14, and a positioning mold 15.

[0028] The mounting bracket 12 is longitudinally fixed to the base plate 1 to provide height installation support.

[0029] The quick clamp 13 is fixed on the upper part of the mounting bracket 12 and moves longitudinally downward with the clamping end facing down, so as to limit the top of the bellows 16 when it is bent.

[0030] A positioning mold 15 with an inverted triangular structure is provided below the clamping end of the quick clamp 13 for bending and shaping the top of the bellows 16.

[0031] The linear guide rail 14 is longitudinally fixed on the mounting bracket 12 below the quick clamp 13, and the positioning mold 15 is slidably disposed on the linear guide rail 14 to ensure the accuracy of the longitudinal movement of the positioning mold 15.

[0032] The positioning mold 15 is located between the two bending molds 6. The two positioning molds 15 rotate upward around the middle, and together with the upper middle positioning mold 15, the bellows 16 is accurately bent.

[0033] The distance between the positioning mold 15 and the bending mold 6 is greater than the diameter of the corrugated pipe 16, so that the workers can easily insert the corrugated pipe 16 along the length of the bending mold 6. The bending mold 6 can keep the corrugated pipe 16 in close contact during the bending process, avoiding or reducing deformation of the corrugated pipe 16 during bending. Both the bending mold 6 and the positioning mold 15 are provided with positioning structures corresponding to the corrugated structure of the corrugated pipe 16 (such as the positioning groove 61 at the outer end of the mold cavity of one bending mold 6 corresponding to the innermost corrugated structure of the other bending end of the corrugated pipe 16, or the arc-shaped corrugated structure 151 at the V-shaped end of the mold cavity of the positioning mold 15 corresponding to the corrugated structure of the corrugated pipe 16 to be bent), to ensure the stability of bending.

[0034] Working principle: Before use, adjust the travel of the lifting cylinder 8 and the position of the positioning mold 15 according to the bending angle of the bellows 16. The operator places the center of the corrugated section of the bellows 16 at the center of the two bending molds 6, starts the pneumatic switch 11, the lifting cylinder 8 pushes out, and the two lifting blocks 10 lift up and drive the two ends of the bending mold 6 to flip upward. When the bending mold 6 flips upward, the bellows 16 is simultaneously lifted to the top and contacts the positioning mold 15. As the bending mold 6 continues to flip, the bellows 16 is bent into the required bending angle according to the cavity of the bending mold 6 and the positioning mold 15. The lifting cylinder 8 is reset. The operator places the other corrugated structure of the bellows 16 at the bending position of the bending mold 6 and the positioning mold 15, and repeats the above operation.

[0035] In summary, the double-headed corrugated pipe bending mechanism disclosed in this utility model has many advantages such as simple structure, strong stability, simple operation, low operating cost and high production efficiency, realizing efficient production, while avoiding or reducing corrugated pipe bending deformation and improving the bending quality of corrugated pipe.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A double-headed corrugated pipe bending mechanism, characterized in that, The device includes a base plate, a support base, a bending seat assembly, a bending drive assembly, and a pressing and positioning assembly. The base plate is horizontally distributed. The support base is fixed above the base plate in a square arch structure. A long strip-shaped clearance groove is provided in the middle of the horizontal end of the support base. The bending seat assembly is correspondingly disposed on the top of the support base and located above the clearance groove. The bending drive assembly is disposed inside the support base, and its drive end is located in the clearance groove and corresponds to the lower part of the bending seat assembly. The pressing and positioning assembly is fixed on the base plate on the rear side of the support base and corresponds vertically to the bending seat assembly.

2. The double-headed corrugated pipe bending mechanism according to claim 1, characterized in that, Handles are provided on both sides of the upper surface of the base plate.

3. The double-headed corrugated pipe bending mechanism according to claim 1, characterized in that, The bending seat assembly includes a bending positioning plate, a bending die, and a fixed shaft.

4. The double-headed corrugated pipe bending mechanism according to claim 3, characterized in that, Two bending positioning plates are provided and fixed in parallel on both sides of the clearance groove. Two bending dies are provided and connected in the middle and fixed between the two bending positioning plates by a fixed shaft.

5. The double-headed corrugated pipe bending mechanism according to claim 4, characterized in that, The bottoms of the two bending dies cover the clearance grooves respectively.

6. The double-headed corrugated pipe bending mechanism according to claim 1, characterized in that, The bending drive assembly includes a lifting cylinder, a lifting plate, and a lifting block.

7. The double-headed corrugated pipe bending mechanism according to claim 6, characterized in that, The driving end of the lifting cylinder is distributed upward and the top is provided with a horizontally distributed lifting plate. The top two sides of the lifting plate are provided with vertically distributed lifting blocks, and the two lifting blocks are located at both ends inside the clearance groove.

8. The double-headed corrugated pipe bending mechanism according to claim 4, characterized in that, The pressing and positioning assembly includes a mounting bracket, quick-pressing clamps, a linear guide rail, and a positioning mold.

9. The double-headed corrugated pipe bending mechanism according to claim 8, characterized in that, The mounting bracket is fixed longitudinally to the base plate. The quick clamp is fixed to the upper part of the mounting bracket and moves longitudinally downward with the clamping end facing down. A positioning mold with an inverted triangular structure is provided below the clamping end of the quick clamp. The linear guide rail is fixed longitudinally to the mounting bracket below the quick clamp. The positioning mold is slidably disposed on the linear guide rail and is located between the two bending dies.