Bending device for aluminum door and window frame production

By designing limiting components and length-fixing plate structures, the problem of material displacement and loosening during the bending process of aluminum door and window frames was solved, achieving stable material positioning and improving the dimensional accuracy and safety of door and window frames.

CN224208864UActive Publication Date: 2026-05-08CHONGQING MCMASON DOORS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING MCMASON DOORS TECH CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In the current aluminum door and window frame production process, the material is prone to displacement or loosening during bending, leading to dimensional deviations, reduced sealing performance, and safety hazards.

Method used

A bending device for producing aluminum door and window frames was designed. It adopts a limiting component and a length-fixing plate structure. The limiting component presses the material against the bending column, and the length-fixing plate achieves positioning in the length direction, ensuring the stability of the material during the bending process.

Benefits of technology

It improves the stability of the material during the bending process, ensures the dimensional accuracy and safety of the door and window frames, and enhances the sealing performance and aesthetics.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bending. The utility model discloses a bending device for aluminum door and window frame production, which comprises a machine frame and a guide limiting frame fixedly connected to the top of the machine frame, and further comprises a bending column fixedly connected to the inner side of the machine frame, a rotary table rotationally connected to the inner wall of the machine frame, a limiting assembly fixedly connected to the top of the rotary table, and a clamping assembly fixedly connected to the top of the limiting assembly. According to the device, a limiting assembly is arranged, a push rod on the outer side of a locking block is pushed firstly, the locking block is separated from a limiting ring, at the moment, an extension spring is stressed and stretched, after the position of a clamping plate is adjusted, the push rod is loosened, the locking block is reset under the elastic force effect of the extension spring, and rotation of a threaded rod is limited through the limiting ring; the stability of the material in the bending process is guaranteed, the fixed-length plate is arranged, the scale groove in the fixed-length plate can be used for measuring the bending length of the material, and positioning of the aluminum door and window frame material in the length direction is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of bending technology, specifically a bending device for the production of aluminum door and window frames. Background Technology

[0002] Bending is a crucial processing step in the production of aluminum door and window frames, and its quality directly affects the overall performance and appearance of the doors and windows. Currently, existing aluminum door and window frame bending devices have many problems in fixing the material.

[0003] In existing technologies, many traditional bending devices are prone to displacement or loosening during the bending process due to insecure material fixation. This not only leads to deviations in the bending angle, causing the dimensions of door and window frames to fail to meet design requirements and reducing the sealing and aesthetics of doors and windows, but may also cause safety hazards, such as deformation or even detachment of doors and windows during use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a bending device for the production of aluminum door and window frames, which solves the problem that materials are prone to displacement or loosening during the bending process of traditional bending devices.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bending device for producing aluminum door and window frames, comprising a frame and a guide and limiting frame fixedly connected to the top of the frame, further comprising: a bending column fixedly connected to the inner side of the frame, a turntable rotatably connected to the inner wall of the frame, and a limiting component fixedly connected to the top of the turntable; the limiting component includes a fixing frame, a threaded rod rotatably connected to the inner wall of the fixing frame, an internal threaded sleeve threadedly connected to the outer wall of the threaded rod, a clamping plate fixedly connected to the outer side of the internal threaded sleeve, a limiting ring fixedly connected to the outer side of the threaded rod, a locking block slidably connected to the inner side of the fixing frame, and a tension spring fixedly connected to the outer side of the locking block, thereby pressing the material between the bending column and the limiting component.

[0008] Preferably, a gear ring is fixedly connected to the bottom of the turntable, and a telescopic cylinder is fixedly connected to the inner side of the frame. A rack is fixedly connected to the output end of the telescopic cylinder. When the telescopic cylinder is activated, the output end of the telescopic cylinder drives the rack fixedly connected to it to move linearly along the guide rail.

[0009] Preferably, the rack meshes with the gear ring, a guide rail is slidably connected to the outer side of the rack, and the outer side of the guide rail is fixedly connected to the inner side of the frame. The linear motion of the rack can drive the gear ring to rotate.

[0010] Preferably, the bottom of the fixed frame is fixedly connected to the top of the turntable, and the outer side of the internal threaded sleeve is slidably connected to the inner wall of the fixed frame. Rotating the threaded rod will cause the internal threaded sleeve to slide along the axial direction of the threaded rod inside the fixed frame.

[0011] Preferably, the top of the locking block is slidably connected to the outer side of the limiting ring, and the end of the tension spring away from the locking block is fixedly connected to the inner side of the fixing frame. When the locking block is reset, the rotation of the threaded rod can be restricted by the limiting ring.

[0012] Preferably, a length-fixed plate is slidably connected to the inner wall of the clamping plate, and a locking bolt is threadedly connected to the top of the clamping plate. The bottom of the locking bolt is inserted into the top of the length-fixed plate. After the length-fixed plate is adjusted to a suitable position, the locking bolt is tightened so that the bottom of the locking bolt is inserted into the top of the length-fixed plate, at which point the position of the length-fixed plate is fixed.

[0013] (III) Beneficial Effects

[0014] This utility model provides a bending device for the production of aluminum door and window frames. It has the following advantages:

[0015] (i) The device first pushes the push rod on the outside of the locking block to disengage the locking block from the limiting ring by setting a limiting component. At this time, the tension spring is stretched. After the position of the clamping plate is adjusted, the push rod is released. At this time, the locking block is reset under the elastic force of the tension spring, and the rotation of the threaded rod is restricted by the limiting ring, thus ensuring the stability of the material during the bending process.

[0016] (ii) This device uses a length-fixing plate. By loosening the locking bolts at the top of the clamping plate, the length-fixing plate can slide within the inner wall of the clamping plate. After adjusting the length-fixing plate to the appropriate position, the locking bolts are tightened so that the bottom of the locking bolts engages with the top of the length-fixing plate. At this point, the position of the length-fixing plate is fixed, and the scale grooves on the length-fixing plate can be used to measure the length of the material during bending, thus achieving the positioning of the aluminum door and window frame material in the length direction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting component of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixed-length plate of this utility model.

[0021] In the diagram: 1. Frame; 2. Guide and limit frame; 3. Turntable; 4. Bending column; 5. Gear ring; 6. Telescopic cylinder; 7. Guide rail; 8. Rack; 9. Limiting assembly; 91. Fixing frame; 92. Threaded rod; 93. Internal threaded sleeve; 94. Clamping plate; 95. Limiting ring; 96. Locking block; 97. Tension spring; 98. Length plate; 99. Locking bolt. 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] Example: Please refer to Figure 1-4 This utility model provides a technical solution: a bending device for producing aluminum door and window frames, including a frame 1 and a guide limiting frame 2 fixedly connected to the top of the frame 1, and further including: a bending column 4 fixedly connected to the inner side of the frame 1, a turntable 3 rotatably connected to the inner wall of the frame 1, a limiting component 9 fixedly connected to the top of the turntable 3; a gear ring 5 fixedly connected to the bottom of the turntable 3, a telescopic cylinder 6 fixedly connected to the inner side of the frame 1, a rack 8 fixedly connected to the output end of the telescopic cylinder 6, the rack 8 meshing with the gear ring 5, a guide rail 7 slidably connected to the outer side of the rack 8, and the outer side of the guide rail 7 fixedly connected to the inner side of the frame 1. First, the aluminum door and window frame material to be bent is placed in the guide limiting frame 2, and then the limiting component 9 presses the material between the bending column 4; after the aluminum door and window frame material is fixed, the telescopic cylinder 6 is activated. The output end of the telescopic cylinder 6 drives the rack 8, which is fixedly connected to it, to move linearly along the guide rail 7. The linear movement of the rack 8 drives the gear ring 5 to rotate, thereby causing the turntable 3 to rotate on the inner wall of the frame 1. When the turntable 3 rotates, the limiting component 9 rotates with the turntable 3, causing the fixed aluminum door and window frame material to rotate around the bending column 4. As the turntable 3 rotates, under the restriction of the guide limiting frame 2, the aluminum door and window frame material is gradually bent, completing the bending operation of the aluminum door and window frame. After the operation is completed, the telescopic cylinder 6 is operated in reverse to make the turntable 3 return to the initial position.

[0024] The limiting component 9 includes a fixed frame 91, a threaded rod 92 rotatably connected to the inner wall of the fixed frame 91, an inner threaded sleeve 93 threadedly connected to the outer wall of the threaded rod 92, a clamping plate 94 fixedly connected to the outer side of the inner threaded sleeve 93, a limiting ring 95 fixedly connected to the outer side of the threaded rod 92, a locking block 96 slidably connected to the inner side of the fixed frame 91, and a tension spring 97 fixedly connected to the outer side of the locking block 96. The bottom of the fixed frame 91 is fixedly connected to the top of the turntable 3. The outer side of the internal threaded sleeve 93 is slidably connected to the inner wall of the fixed frame 91. The top of the locking block 96 is slidably connected to the outer side of the limiting ring 95. The end of the tension spring 97 away from the locking block 96 is fixedly connected to the inner side of the fixed frame 91. The inner wall of the clamping plate 94 is slidably connected to the length plate 98. The top of the clamping plate 94 is threadedly connected to the locking bolt 99. The bottom of the locking bolt 99 is inserted into the top of the length plate 98. When fixing the material, the threaded rod 92 is rotated so that the internal threaded sleeve 93 slides in the fixed frame 91 along the axial direction of the threaded rod 92. When the internal threaded sleeve 93 slides, it will drive the clamping plate 94, which is fixedly connected to it, to move closer to the bending column 4, thereby making the material tightly adhere to the bending column 4. During this process, the push rod on the outside of the locking block 96 needs to be pushed first, so that the locking block 96 disengages from the limiting ring 95. At this time, the tension spring 97 is stretched. After the position of the clamping plate 94 is adjusted, the push rod is released. At this time, the locking block 96 is reset under the elastic force of the tension spring 97, and the rotation of the threaded rod 92 is restricted by the limiting ring 95, ensuring the stability of the material during the bending process. At the same time, by setting the length plate 98 and loosening the locking bolt 99 at the top of the clamping plate 94, the length plate 98 can slide in the inner wall of the clamping plate 94. After adjusting the length plate 98 to the appropriate position, tighten the locking bolt 99 so that the bottom of the locking bolt 99 is inserted into the top of the length plate 98. At this time, the position of the length plate 98 is fixed. The scale groove on the length plate 98 can be used to measure the length of the material when it is bent, so as to realize the positioning of the length direction of the aluminum door and window frame material.

[0025] When in use, before bending the aluminum door and window frame, place the aluminum door and window frame material to be bent in the guide limit frame 2, and then press the material and the bending column 4 together through the limit component 9.

[0026] After the aluminum door and window frame material is fixed, the telescopic cylinder 6 is activated. The output end of the telescopic cylinder 6 drives the rack 8, which is fixedly connected to it, to move linearly along the guide rail 7. The linear movement of the rack 8 drives the gear ring 5 to rotate, thereby causing the turntable 3 to rotate on the inner wall of the frame 1. When the turntable 3 rotates, the limiting component 9 rotates with the turntable 3, causing the fixed aluminum door and window frame material to rotate around the bending column 4. As the turntable 3 rotates, under the restriction of the guide limiting frame 2, the aluminum door and window frame material is gradually bent, completing the bending operation of the aluminum door and window frame. After the operation is completed, the telescopic cylinder 6 is operated in reverse to return the turntable 3 to its initial position.

[0027] When fixing the material, rotating the threaded rod 92 causes the internal threaded sleeve 93 to slide within the fixing frame 91 along the axial direction of the threaded rod 92. As the internal threaded sleeve 93 slides, it causes the clamping plate 94, which is fixedly connected to it, to move closer to the bending column 4, thereby making the material adhere tightly to the bending column 4.

[0028] During this process, the push rod on the outside of the locking block 96 needs to be pushed first to disengage the locking block 96 from the limiting ring 95. At this time, the tension spring 97 is stretched. After the position of the clamping plate 94 is adjusted, the push rod is released. At this time, the locking block 96 is reset under the elastic force of the tension spring 97, and the rotation of the threaded rod 92 is restricted by the limiting ring 95, thus ensuring the stability of the material during the bending process.

[0029] Simultaneously, by setting the length-fixing plate 98 and loosening the locking bolt 99 at the top of the clamping plate 94, the length-fixing plate 98 can slide within the inner wall of the clamping plate 94. After adjusting the length-fixing plate 98 to the appropriate position, tighten the locking bolt 99 so that the bottom of the locking bolt 99 engages with the top of the length-fixing plate 98. At this point, the position of the length-fixing plate 98 is fixed, and the scale groove on the length-fixing plate 98 can be used to measure the length of the material during bending, thus achieving the positioning of the aluminum door and window frame material in the length direction.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending device for producing aluminum door and window frames, comprising a frame (1) and a guide and limiting frame (2) fixedly connected to the top of the frame (1), characterized in that, Also includes: A bending column (4) is fixedly connected to the inner side of the frame (1), and a turntable (3) is rotatably connected to the inner wall of the frame (1). A limit assembly (9) is fixedly connected to the top of the turntable (3). The limiting component (9) includes a fixing frame (91), a threaded rod (92) is rotatably connected to the inner wall of the fixing frame (91), an inner threaded sleeve (93) is threadedly connected to the outer wall of the threaded rod (92), a clamping plate (94) is fixedly connected to the outer side of the inner threaded sleeve (93), a limiting ring (95) is fixedly connected to the outer side of the threaded rod (92), a locking block (96) is slidably connected to the inner side of the fixing frame (91), and a tension spring (97) is fixedly connected to the outer side of the locking block (96).

2. The bending device for producing aluminum door and window frames according to claim 1, characterized in that: A gear ring (5) is fixedly connected to the bottom of the turntable (3), a telescopic cylinder (6) is fixedly connected to the inner side of the frame (1), and a rack (8) is fixedly connected to the output end of the telescopic cylinder (6).

3. The bending device for producing aluminum door and window frames according to claim 2, characterized in that: The rack (8) meshes with the gear ring (5), and a guide rail (7) is slidably connected to the outer side of the rack (8). The outer side of the guide rail (7) is fixedly connected to the inner side of the frame (1).

4. The bending device for producing aluminum door and window frames according to claim 1, characterized in that: The bottom of the fixed frame (91) is fixedly connected to the top of the turntable (3), and the outer side of the internal threaded sleeve (93) is slidably connected to the inner wall of the fixed frame (91).

5. A bending device for producing aluminum door and window frames according to claim 1, characterized in that: The top of the locking block (96) is slidably connected to the outer side of the limiting ring (95), and the end of the tension spring (97) away from the locking block (96) is fixedly connected to the inner side of the fixing frame (91).

6. A bending device for producing aluminum door and window frames according to claim 1, characterized in that: The inner wall of the clamp (94) is slidably connected to a length plate (98), and the top of the clamp (94) is threadedly connected to a locking bolt (99), the bottom of which is inserted into the top of the length plate (98).