Edge folding device for steel door panel
By integrating compression springs and bending components into a steel door panel folding device, automatic removal of excess material and efficient edge bending are achieved, solving the problem of difficult excess material removal in existing technologies and improving production continuity and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MCMASON DOORS TECH CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-22
AI Technical Summary
In the existing technology, the excess material at the four corners of the steel door panel cannot be effectively removed during the folding operation, which leads to cumbersome operation and reduces production continuity and efficiency.
A steel door panel folding device was designed, integrating a compression spring and a bending assembly. It uses a telescopic cylinder and a drive motor to achieve automatic removal of excess material and bending of the edges. The compression spring provides buffering and fixation to avoid damage, and the excess material is removed by sliding shearing force.
It simplifies the production process, improves the continuity and efficiency of production, protects the surface quality of the door panel, and shortens the processing time.
Smart Images
Figure CN224265908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edge folding technology, specifically to an edge folding device for steel door panels. Background Technology
[0002] During the manufacturing process of steel doors, the steel door panels need to be folded to facilitate assembly and connection with other components, such as the door frame, thereby improving the convenience of production and the precision of assembly.
[0003] In existing technologies, when performing edge folding operations on steel door panels, the excess material at the four corners must first be cut off to ensure proper edge folding. Most devices do not integrate an excess material cutting function, requiring an additional excess material processing step before edge folding. This not only increases the complexity of the operation process but also reduces production continuity and efficiency. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a folding device for steel door panels, which solves the problem that existing technologies cannot remove excess material at the four corners during the folding operation of steel door panels, resulting in a cumbersome folding process.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a steel door panel folding device, comprising a frame, a guide rod slidably connected to the top of the frame, a bending component fixedly connected to the bottom of the guide rod, and further comprising: a hollow column fixedly connected to the inner side of the frame, a compression spring fixedly connected to the inner side of the hollow column, a slider fixedly connected to the top of the compression spring, a connecting plate fixedly connected to the top of the slider, and a pressure table fixedly connected to the bottom of the connecting plate. The compression spring provides a certain amount of buffering and elastic pressure, which can effectively fix the door panel, prevent the door panel from moving during the folding process, and avoid damage to the door panel due to excessive pressure, thus protecting the surface quality of the door panel.
[0008] The bending assembly includes a lower pressure shell, a turntable rotatably connected to the center of the lower pressure shell, a guide frame fixedly connected to the inner side of the lower pressure shell, a sliding frame slidably connected to the inner side of the guide frame, a movable rod rotatably connected to the outer side of the sliding frame, a connecting rod rotatably connected to the outer side of the movable rod, and a bending plate fixedly connected to the bottom of the connecting rod. When the movable rod is pushed outward, the movable rod can push the four bending plates at the bottom of the lower pressure shell downward through the connecting rod to perform bending operations on the four edges of the steel door panel.
[0009] Preferably, a telescopic cylinder is fixedly connected to the top of the frame, and the bottom end of the telescopic cylinder is fixedly connected to the top of the bending assembly. As the telescopic cylinder continues to move, under the shearing force of the hollow column and the lower pressure shell sliding against each other, the excess material at the four corners of the steel door panel can be cut off.
[0010] Preferably, the hollow column is located at the four corners inside the frame, and the outer side of the slider is slidably connected to the inner side of the hollow column. The lower pressure shell presses the steel door panel and the pressure table downwards, and at this time the pressure table drives the slider to slide downwards through the connecting plate.
[0011] Preferably, the pressure platform is located directly below the lower pressure shell, the top of the lower pressure shell is fixedly connected to the bottom end of the telescopic cylinder, the top of the lower pressure shell is fixedly connected to the bottom end of the guide rod, and a drive motor is fixedly connected at the center of the top of the lower pressure shell. When the telescopic cylinder is started, the telescopic cylinder drives the bending assembly to move downward under the restriction of the guide rod.
[0012] Preferably, the output end of the drive motor is fixedly connected to the center of the turntable, the inner side of the turntable is slidably connected to the outer side of the sliding frame through an arc groove, and the two sides of the bending plate are rotatably connected to the bottom of the lower pressure shell. When the edge is folded, the drive motor drives the turntable to rotate, and when the turntable rotates, the sliding frame slides in the arc groove opened in the turntable.
[0013] (III) Beneficial Effects
[0014] This utility model provides a folding device for steel door panels. It has the following advantages:
[0015] (i) The device provides a certain amount of buffer and elastic pressure by setting compression springs, which can not only ensure the effective fixation of the door panel and prevent the door panel from moving during the folding process, but also avoid damage to the door panel due to excessive pressure. At the same time, under the shearing force of the sliding between the hollow column and the lower pressure shell, the excess material at the four corners of the steel door panel can be cut off, which facilitates the subsequent folding operation, simplifies the production process, and improves the continuity of production.
[0016] (ii) The device is equipped with a bending component, which drives the motor to rotate the turntable. When the turntable rotates, the sliding frame slides in the arc groove opened in the turntable and pushes the movable rod outward under the restriction of the guide frame. At this time, the movable rod can push the four bending plates at the bottom of the lower pressure shell to deflect downward through the connecting rod, and perform bending operation on the four edges of the steel door panel, which improves the efficiency of bending and shortens the processing time of a single door panel. 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 hollow column of this utility model;
[0020] Figure 4 This is a schematic diagram of the bending component of this utility model.
[0021] In the diagram: 1. Frame; 2. Guide rod; 3. Bending assembly; 4. Telescopic cylinder; 5. Hollow column; 6. Compression spring; 7. Slider; 8. Connecting plate; 9. Pressing table; 31. Lower pressing shell; 32. Drive motor; 33. Turntable; 34. Sliding frame; 35. Guide frame; 36. Movable rod; 37. Connecting rod; 38. Bending plate. 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 1-4This utility model provides a technical solution: a steel door panel folding device, including a frame 1, a guide rod 2 slidably connected to the top of the frame 1, a bending assembly 3 fixedly connected to the bottom of the guide rod 2, and further including: a hollow column 5 fixedly connected to the inner side of the frame 1, a compression spring 6 fixedly connected to the inner side of the hollow column 5, a slider 7 fixedly connected to the top of the compression spring 6, a connecting plate 8 fixedly connected to the top of the slider 7, and a pressure table 9 fixedly connected to the bottom of the connecting plate 8; a telescopic cylinder 4 fixedly connected to the top of the frame 1, the bottom end of the telescopic cylinder 4 fixedly connected to the top of the bending assembly 3, the hollow column 5 located at the four corners of the inner side of the frame 1, the outer side of the slider 7 slidably connected to the inner side of the hollow column 5, and the pressure table 9 located directly below the lower pressure shell 31, the top of the lower pressure shell 31 fixedly connected to the bottom end of the telescopic cylinder 4, and the steel door panel placed on the machine. On the inner side of the frame 1, on the pressure table 9, the telescopic cylinder 4 is then activated. Under the restriction of the guide rod 2, the telescopic cylinder 4 drives the bending assembly 3 to move downward and press against the surface of the steel door panel. The compression spring 6 can provide a certain amount of buffering and elastic pressure, which can not only ensure the effective fixation of the door panel and prevent the door panel from moving during the bending process, but also avoid damage to the door panel due to excessive pressure, thus protecting the surface quality of the door panel. Subsequently, as the telescopic cylinder 4 continues to move, the lower pressure shell 31 in the bending assembly 3 presses the steel door panel and the pressure table 9 downward. At this time, the pressure table 9 drives the slider 7 to slide downward through the connecting plate 8, forcing the compression spring 6 to be compressed. At the same time, under the shearing force of the hollow column 5 and the lower pressure shell 31 sliding against each other, the excess material at the four corners of the steel door panel can be cut off, which facilitates the subsequent bending operation, simplifies the production process, and improves the continuity of production.
[0024] The bending assembly 3 includes a lower pressure shell 31, a turntable 33 is rotatably connected to the center of the lower pressure shell 31, a guide frame 35 is fixedly connected to the inner side of the lower pressure shell 31, a sliding frame 34 is slidably connected to the inner side of the guide frame 35, a movable rod 36 is rotatably connected to the outer side of the sliding frame 34, a connecting rod 37 is rotatably connected to the outer side of the movable rod 36, and a bending plate 38 is fixedly connected to the bottom of the connecting rod 37. The top of the lower pressure shell 31 is fixedly connected to the bottom of the guide rod 2. A drive motor 32 is fixedly connected to the center of the top of the lower pressure shell 31. The output end of the drive motor 32 is fixedly connected to the center of the turntable 33. The inner side of the turntable 33 is slidably connected to the outer side of the sliding frame 34 through an arc groove. The two sides of the bending plate 38 are rotatably connected to the bottom of the lower pressure shell 31. The drive motor 32 drives the turntable 33 to rotate. When the turntable 33 rotates, the sliding frame 34 slides in the arc groove opened in the turntable 33 and pushes the movable rod 36 outward under the restriction of the guide frame 35. At this time, the movable rod 36 can push the four bending plates 38 at the bottom of the lower pressure shell 31 downward through the connecting rod 37 to perform bending operations on the four edges of the steel door panel, which improves the efficiency of bending and shortens the processing time of a single door panel.
[0025] When in use, first place the steel door panel on the pressure table 9 inside the frame 1, then start the telescopic cylinder 4. Under the restriction of the guide rod 2, the telescopic cylinder 4 drives the bending component 3 to move downward and press against the surface of the steel door panel. The compression spring 6 can provide a certain amount of buffer and elastic pressure, which can not only ensure the effective fixation of the door panel and prevent the door panel from moving during the bending process, but also avoid damage to the door panel due to excessive pressure, thus protecting the surface quality of the door panel.
[0026] Subsequently, as the telescopic cylinder 4 continues to move, the lower pressing shell 31 in the bending assembly 3 presses the steel door panel and the pressing table 9 downward. At this time, the pressing table 9 drives the slider 7 to slide downward through the connecting plate 8, forcing the compression spring 6 to be compressed. At the same time, under the shearing force of the hollow column 5 and the lower pressing shell 31 sliding against each other, the excess material at the four corners of the steel door panel can be cut off, which facilitates the subsequent bending operation, simplifies the production process, and improves the continuity of production.
[0027] During the folding process, the drive motor 32 drives the turntable 33 to rotate. As the turntable 33 rotates, the sliding frame 34 slides in the arc-shaped groove opened in the turntable 33 and pushes the movable rod 36 outward under the restriction of the guide frame 35. At this time, the movable rod 36 can push the four bending plates 38 at the bottom of the lower pressure shell 31 to deflect downward through the connecting rod 37, and perform bending operations on the four edges of the steel door panel, which improves the folding efficiency and shortens the processing time of a single door panel.
[0028] 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.
[0029] 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 folding device for a steel door panel, comprising a frame (1), wherein a guide rod (2) is slidably connected to the top of the frame (1), and a bending assembly (3) is fixedly connected to the bottom of the guide rod (2), characterized in that, Also includes: A hollow column (5) is fixedly connected to the inner side of the frame (1), a compression spring (6) is fixedly connected to the inner side of the hollow column (5), a slider (7) is fixedly connected to the top of the compression spring (6), a connecting plate (8) is fixedly connected to the top of the slider (7), and a pressure table (9) is fixedly connected to the bottom of the connecting plate (8). The bending assembly (3) includes a lower pressure shell (31), a turntable (33) is rotatably connected to the center of the lower pressure shell (31), a guide frame (35) is fixedly connected to the inner side of the lower pressure shell (31), a sliding frame (34) is slidably connected to the inner side of the guide frame (35), a movable rod (36) is rotatably connected to the outer side of the sliding frame (34), a connecting rod (37) is rotatably connected to the outer side of the movable rod (36), and a bending plate (38) is fixedly connected to the bottom of the connecting rod (37).
2. The folding device for a steel door panel according to claim 1, characterized in that: A telescopic cylinder (4) is fixedly connected to the top of the frame (1), and the bottom end of the telescopic cylinder (4) is fixedly connected to the top of the bending assembly (3).
3. The folding device for a steel door panel according to claim 1, characterized in that: The hollow column (5) is located at the four corners inside the frame (1), and the outer side of the slider (7) is slidably connected to the inner side of the hollow column (5).
4. The folding device for a steel door panel according to claim 1, characterized in that: The pressure plate (9) is located directly below the lower pressure shell (31), and the top of the lower pressure shell (31) is fixedly connected to the bottom of the telescopic cylinder (4).
5. The folding device for a steel door panel according to claim 1, characterized in that: The top of the lower pressure shell (31) is fixedly connected to the bottom end of the guide rod (2), and a drive motor (32) is fixedly connected at the center of the top of the lower pressure shell (31).
6. The folding device for a steel door panel according to claim 5, characterized in that: The output end of the drive motor (32) is fixedly connected to the center of the turntable (33). The inner side of the turntable (33) is slidably connected to the outer side of the sliding frame (34) through an arc groove. The two sides of the bending plate (38) are rotatably connected to the bottom of the lower pressure shell (31).