Door and window profile production straightening device
The straightening device, which combines inner and outer pressure rollers, solves the problem of the inability to straighten the concave part of the profile, realizes bidirectional straightening from both inside and outside, and improves the straightening quality and the adaptability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-06
AI Technical Summary
Existing straightening equipment cannot effectively correct concave parts of profiles, and its effectiveness is limited.
Design a straightening device for door and window profile production. It uses an inner roller to press against the inside of the profile, combined with an outer pressure roller. The unfolding angle is adjusted by a connecting rod and a sliding rod to achieve bidirectional straightening. Friction resistance is increased by a friction disc and a turntable to adapt to different profile sizes.
It effectively corrects the concave parts of profiles, improves the straightening quality and the practicality of the equipment, and adapts to the straightening needs of various profiles.
Smart Images

Figure CN223970651U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of profile straightening equipment, and in particular relates to a straightening device for door and window profile production. Background Technology
[0002] Straightening is an indispensable part of the production and processing of door and window profiles, ensuring both product quality and aesthetics. By applying deformation force to the product, causing it to undergo plastic deformation, and thus achieving straightness, the door and window profiles can better meet usage requirements and improve the overall performance of the product.
[0003] Currently, most existing straightening equipment uses pressure rollers for operation. However, the straightening force is applied to the outside of the profile, which cannot straighten the profile with inward concave parts, thus limiting its effectiveness.
[0004] To address the aforementioned issues, this application proposes a straightening device for door and window profile production. Utility Model Content
[0005] The purpose of this utility model is to provide a straightening device for door and window profile production, which solves the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model is a straightening device for door and window profile production, including a straightening machine and pressure rollers; inner rollers, located between adjacent pressure rollers, are used to press against the inner wall of the profile to straighten its concave parts. Four adjacent inner rollers form a group, and when unfolded, they press against the inner walls of both sides of the profile in pairs; connecting rods are used to install inner rollers at both ends, and adjacent connecting rods are rotatably connected at the junction. When unfolded, adjacent connecting rods form an "X" shape, and a sliding rod is provided near the junction to adjust the unfolding angle of the connecting rods.
[0008] Furthermore, the end of the pressure roller is provided with a turntable protruding outward, and the bottom outer side of the turntable is a rubber mechanism to increase frictional resistance.
[0009] Furthermore, connecting plates are provided on the outer sides of adjacent pressure rollers, with rings at both ends rotatably mounted on the outer side of the turntable, so that the connecting plates maintain a fixed tilt angle when the pressure rollers rotate.
[0010] Furthermore, both ends of the connecting plate are provided with arc-shaped frames, which are arc-shaped structures, and adjacent arc-shaped frames protrude in opposite directions.
[0011] Furthermore, a positioning disc slides inside the arc-shaped frame, and a friction disc is rotatably mounted at one end of it.
[0012] Furthermore, the positioning plate is used to adjust the placement of the friction plate, which abuts against the bottom layer of the turntable and the cylindrical part of the slide rod, respectively, to adjust the squeezing force on the slide rod to control the unfolding angle of the connecting rod.
[0013] Furthermore, inclined plates are provided on the inner side of the adjacent joints of the connecting rods, and inclined sides are provided on both sides of the sliding rod. When the sliding rod slides to the joint of the adjacent connecting rod, it abuts against the inclined plates to drive the connecting rod to unfold outward.
[0014] This utility model has the following beneficial effects:
[0015] This invention utilizes an inner roller built between adjacent pressure rollers to press against the side wall from the inside during profile straightening, causing the inwardly concave portion of the profile to be pushed outward, thus achieving the effect of shaping and straightening. This effectively ensures the straightening quality of the profile and improves the efficiency of the equipment.
[0016] This invention utilizes the contact between the friction disc and the turntable to tighten the cylindrical part of the sliding column during the straightening operation, causing the sliding rod to slide. This allows multiple inner rollers to expand outward and press against each other to form an inner wall, achieving the effect of adapting to the width of the inner groove of the profile. It can meet the straightening needs of various profiles and improve the practicality of the equipment.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.
[0019] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the disassembled structure of the adjacent pressure rollers of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of adjacent inner rollers and connecting plate of this utility model;
[0022] Figure 4 This is a partially enlarged structural diagram of part A of this utility model;
[0023] The attached diagram lists the components represented by each number as follows:
[0024] In the diagram: 1. Straightening machine; 2. Pressure roller; 3. Inner roller; 4. Connecting plate; 5. Turntable; 6. Ring; 7. Connecting rod; 8. Slide rod; 9. Arc frame; 10. Positioning plate; 11. Friction plate; 12. Slide column; 13. Inclined plate; 14. Inclined edge. Detailed Implementation
[0025] 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.
[0026] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0027] Please see Figure 1-4 As shown, this utility model is a straightening device for door and window profile production, including a straightening machine 1 and a pressure roller 2;
[0028] The inner roller 3 is located between the adjacent pressure rollers 2 and is used to press against the inner wall of the profile to correct its concave part. The four adjacent inner rollers 3 form a group, and when unfolded, they press against the inner walls of both sides of the profile in pairs.
[0029] The connecting rod 7 has two ends for mounting the inner roller 3. The joints of adjacent connecting rods 7 are rotatably connected, and the adjacent connecting rods 7 form an "X" shape when unfolded. A sliding rod 8 is provided near the joint to adjust the unfolding angle of the connecting rod 7.
[0030] This embodiment provides a device that can correct recessed parts from the inside. By using the built-in inner roller 3 to abut against the inner wall of the profile, it can form bidirectional correction from the inside and outside during operation in conjunction with the pressure roller 2, ensuring the correction quality of the profile. By using the slide rod 8 to tighten the connecting rod 7, the expansion angle of the adjacent connecting rod 7 can be adjusted to drive the inner roller 2 to unfold and adapt to different profiles.
[0031] The pressure roller 2 has a turntable 5 protruding outward at its end, and the outer bottom layer of the turntable 5 is a rubber mechanism to increase frictional resistance, while the size of the outer layer is smaller than that of the bottom layer.
[0032] Each of the adjacent pressure rollers 2 has a connecting plate 4 on its outer side, and the rings 6 at both ends are rotatably installed on the outer side of the turntable 5. When the pressure roller 2 rotates, since the rings 6 at both ends are rotatably connected to the turntable 5, the tilt angle of the connecting plate 4 can remain unchanged, thereby ensuring that the placement position of the inner roller 3 remains unchanged.
[0033] Both ends of the connecting plate 4 are provided with arc-shaped frames 9, which are arc-shaped structures. Arc-shaped through grooves are opened inside the arc-shaped frames 9. The arc-shaped through grooves and arc-shaped frames 9 are coaxial with the rotating sleeve 5, and the adjacent arc-shaped frames 9 protrude in opposite directions. A positioning disk 10 slides inside the arc-shaped frame 9, and a friction disk 11 is rotatably installed at one end of it.
[0034] The positioning plate 10 is used to adjust the placement of the friction plate 11. The friction plate 11 abuts against the bottom layer of the turntable 5 and the cylindrical part of the slide column 12. By adjusting the placement of the friction plate 11 to adjust the distance between it and the slide column 12, the slide rod 8 can be moved to the junction of the adjacent connecting rod 7, thereby increasing the squeezing force to control the unfolding angle of the connecting rod 7. The inner side of the adjacent junction of the connecting rod 7 is provided with inclined plate 13, and the two sides of the slide rod 8 are provided with inclined edge 14. When the slide rod 8 slides to the junction of the adjacent connecting rod 7, it abuts against the inclined plate 13 to drive the connecting rod 7 to unfold outward.
[0035] It is understood that this utility model can perform bidirectional straightening of profiles of different sizes, both internally and externally. It can not only straighten bent profiles, but also straighten inwardly concave parts of profiles, effectively improving the use effect of the equipment and the straightening quality of the products.
[0036] A specific application of the operation process of this embodiment is as follows: In use, the inner roller 3 is first inserted into the inner groove of the profile through the connecting plate 4. Then, during the rotation of the pressure roller 2, the friction disk 11 is rotated by the turntable 5, causing it to press against the sliding column 12. This causes the inclined side 14 of the sliding rod 8 to press against the inclined plate 13 on the inner side of the connecting rod 7, so that the adjacent inclined plates 13 expand outward, causing the inner roller 3 to press against the inner wall of the profile. Combined with the outer squeezing of the pressure roller 2, it forms a trimming effect on the concave part. Moreover, when correcting different profiles, the position of the inner roller 3 can be adjusted within the arc frame 9 by the positioning plate 10 to adjust the outward expansion range of the inner roller 3 to adapt to different profiles and improve the practicality of the equipment.
[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A door and window profile production straightening device, comprising a straightening machine (1) and a pressing roller (2), characterized in that: an inner roller (3) is arranged between adjacent pressing rollers (2) and used for pressing the inner wall of the profile to correct the concave part, four adjacent inner rollers (3) are arranged as a group, and two of them are arranged opposite to each other to press the two inner walls of the profile when unfolded; a connecting rod (7) is arranged at both ends of the inner roller (3), the adjacent connecting rods (7) are rotationally connected at the joint, and the adjacent connecting rods (7) are arranged in an "X" shape when unfolded, and a sliding rod (8) is arranged at the adjacent joint to adjust the unfolding angle of the connecting rod (7). The end of the pressing roller (2) is provided with a rotating table (5) which protrudes outward, and the outer side of the bottom layer of the rotating table (5) is provided with a rubber mechanism for increasing friction resistance.
2. A device for straightening of profiles for doors and windows according to claim 1, characterized in that: The outer side of the adjacent pressing roller (2) is provided with a connecting plate (4), the loop (6) at both ends of the connecting plate (4) is rotationally installed on the outer side of the rotating table (5), so that the connecting plate (4) remains in a fixed inclined angle state when the pressing roller (2) rotates.
3. A device for straightening of profiles for doors and windows according to claim 1, characterized in that: Both ends of the connecting plate (4) are provided with arc-shaped frames (9) which are arranged in an arc shape, and the protruding directions of the adjacent arc-shaped frames (9) are opposite.
4. A device for straightening of profiles for doors and windows according to claim 3, characterized in that: The inside of the arc-shaped frame (9) is slidably provided with a positioning disc (10), and a friction disc (11) is rotationally installed at one end of the positioning disc (10).
5. A device for straightening of profiles for doors and windows according to claim 4, characterized in that: The positioning disc (10) is used for adjusting the placement position of the friction disc (11), the friction disc (11) is arranged opposite to the bottom layer of the rotating table (5) and the cylindrical part of the sliding column (12), respectively, and is used for adjusting the extrusion force on the sliding rod (8) to control the unfolding angle of the connecting rod (7).
6. A device for straightening of profiles for doors and windows according to claim 5, characterized in that: The inner side of the adjacent joint of the connecting rod (7) is provided with an inclined plate (13), and the two sides of the sliding rod (8) are provided with an inclined edge (14), which is arranged opposite to the inclined plate (13) when the sliding rod (8) slides to the joint of the adjacent connecting rod (7) to drive the connecting rod (7) to unfold outward.
7. A device for straightening of profiles for doors and windows according to claim 1, characterized in that: