Edge folding die applied to steel door
By designing an folding mold with adaptive limiting components and stable pressing components, the problems of friction and scratches during the folding process of steel doors were solved, improving product quality and production efficiency, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MCMASON DOORS TECH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-22
AI Technical Summary
Traditional steel door folding dies have significant friction with the steel door surface during the folding process, which can easily cause scratches and wear, affecting product quality and increasing production costs.
A folding die including an upper die, a lower die, a conveyor table, a pressing component, and a limiting component was designed. By adaptive adjustment of the limiting component and stable pressure of the pressing component, friction is reduced and uniform pressure is ensured, preventing displacement and deformation of the steel door.
It improved the edge quality of steel doors, reduced the scrap rate and production costs, simplified mold maintenance, and increased production efficiency.
Smart Images
Figure CN224265909U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding mold technology, specifically a folding mold applied to steel doors. Background Technology
[0002] In the manufacturing of steel doors, the folding process is one of the key factors that determines product quality and appearance. As the demand for steel doors in the construction industry and home furnishing market continues to grow, the requirements for the folding quality and production efficiency of steel doors are also increasing.
[0003] In terms of protecting the surface of the workpiece, the design of traditional folding molds is not perfect. During the folding process, the friction between the mold and the surface of the steel door is large, which can easily cause scratches, wear and other damage to the surface of the workpiece. This not only reduces the surface quality of the steel door, but may also lead to the scrapping of the workpiece and increase production costs. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a folding mold for steel doors, which solves the problem of excessive friction between the mold and the surface of the steel door, which easily causes scratches, wear and other damage to the workpiece surface.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a folding mold for steel doors, comprising an upper mold and a lower mold, and a conveyor table. The bottom of the conveyor table is fixedly connected to the outer wall of the top of the lower mold. A limit assembly is fixedly connected to the outer wall of the bottom of the upper mold, and a pressing assembly is fixedly connected to the outer wall of the bottom of the upper mold. The pressing assembly includes a mounting block, a limit frame is slidably connected to the inner wall of the bottom of the mounting block, a side roller is rotatably connected to the inner wall of the bottom of the limit frame, and a pressure roller is rotatably connected to the inner wall of the bottom of the limit frame. Two sets of pressure rollers are provided.
[0008] Preferably, the outer walls on both sides of the limiting frame are fixedly connected with locking blocks, the locking blocks are made of elastic material, the outer walls on both sides of the mounting block are fixedly connected with limiting frames, the inner walls of the limiting frames are engaged with the outer walls of the locking blocks, and the inner walls of the upper mold are slidably connected with the outer walls of the lower mold.
[0009] Preferably, the limiting component includes a fixing block, a sliding cylinder is slidably connected to the inner wall of the fixing block, and the sliding cylinder is arranged in a linear array along the outer wall of the fixing block. A limiting plate is fixedly connected to the outer wall of the bottom of the sliding cylinder, a pressure column is slidably connected to the inner wall of the sliding cylinder through a limiting ring, a pressure plate is fixedly connected to the bottom of the pressure column, and an anti-slip pad is provided at the bottom of the pressure plate.
[0010] Preferably, a pressure column is fixedly connected to the outer wall of the pressure column, and a top spring is fixedly connected to the outer wall of the top of the limiting plate.
[0011] Preferably, the end of the top spring away from the limiting plate is fixedly connected to the bottom of the fixing block, the top of the fixing block is fixedly connected to the outer wall of the bottom of the upper mold, a tension spring is fixedly connected to the outer wall of the pressure column, the bottom of the tension spring is fixedly connected to the outer wall of the top of the sliding cylinder, and a limiting ring is fixedly connected to the inner wall of the sliding cylinder.
[0012] (III) Beneficial Effects
[0013] This utility model provides a folding mold for steel doors. It has the following beneficial effects:
[0014] (i) This type of folding mold applied to steel doors, by setting a limiting component, through the action of tension spring and top spring, enables the pressure plate to adaptively adjust according to the undulation of the steel door surface, ensuring that uniform pressure is applied to all parts of the steel door. This prevents the steel door from shifting during the folding process, improves product quality. The side roller of the pressing component plays a guiding and auxiliary positioning role. The pressure roller applies stable pressure to the steel door to prevent displacement and deformation, which further improves the folding quality.
[0015] (II) This type of folding mold for steel doors, by setting up a pressing component, when it is necessary to replace the pressure roller and the side roller, simply release the locking blocks on both sides of the limiting frame from the limiting frame, and the limiting frame can be taken out. Then, the new limiting frame is slid into the mounting block along the inner wall at the bottom of the mounting block, and the locking blocks are locked into the limiting frame. The operation is simple and convenient. This design reduces the maintenance difficulty and cost of the mold, reduces downtime caused by component damage, and improves production efficiency. The side roller can rotate on the inner wall at the bottom of the limiting frame and can roll on the edge of the steel door, reducing friction with the surface of the steel door. This not only helps to protect the surface quality of the steel door and avoid scratches, wear and other damage during the folding process, but also reduces the scrap rate of the workpiece and saves production costs. 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 cross-sectional view of the present invention;
[0018] Figure 3 This is an exploded view of the edge-pressing component of this utility model;
[0019] Figure 4 This is a schematic diagram of the limiting component of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the pressure plate of this utility model.
[0021] In the diagram: 1. Upper mold; 2. Lower mold; 3. Conveyor table; 4. Pressing edge assembly; 5. Limiting assembly; 41. Mounting block; 42. Limiting frame; 43. Locking block; 44. Limiting bracket; 45. Side roller; 46. Pressure roller; 51. Fixing block; 52. Sliding cylinder; 53. Pressure column; 54. Tension spring; 55. Top spring; 56. Limiting plate; 57. Pressure 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] Please see Figure 1-5 This utility model provides a technical solution: a folding mold for steel doors, including an upper mold 1 and a lower mold 2, and a conveyor table 3. Before the folding operation begins, the steel door to be folded is placed on the conveyor table 3 and conveyed to the pressing assembly 4. When the folding operation is performed, the upper mold 1 moves downward, causing the pressing assembly 4 to descend together. The bottom of the conveyor table 3 is fixedly connected to the outer wall of the top of the lower mold 2. A limit assembly 5 is fixedly connected to the outer wall of the bottom of the upper mold 1, and the pressing assembly 4 is fixedly connected to the outer wall of the bottom of the upper mold 1. The pressing assembly 4 includes a mounting block 41, and a limit frame 44 is slidably connected to the inner wall of the bottom of the mounting block 41. The inner wall of the part is rotatably connected to a side roller 45, the inner wall of the bottom of the limiting frame 44 is rotatably connected to a pressure roller 46, the outer walls on both sides of the limiting frame 44 are fixedly connected to a locking block 43, the outer walls on both sides of the mounting block 41 are fixedly connected to a limiting frame 42, the inner wall of the limiting frame 42 is engaged with the outer wall of the locking block 43, the inner wall of the upper mold 1 is slidably connected to the outer wall of the lower mold 2, and when it is necessary to replace the pressure roller 46 and the side roller 45, it is only necessary to release the locking block 43 on both sides of the limiting frame 44 from the limiting frame 42, and the limiting frame 44 can be taken out. Then, the new limiting frame 44 is slid into the mounting block 41 along the inner wall at the bottom of the mounting block 41, and the locking block 43 is engaged in the limiting frame 42.
[0024] The limiting component 5 includes a fixed block 51, a sliding cylinder 52 slidably connected to the inner wall of the fixed block 51, and the sliding cylinder 52 is arranged in a linear array along the outer wall of the fixed block 51. A limiting plate 56 is fixedly connected to the outer wall of the bottom of the sliding cylinder 52. A pressure column 53 is slidably connected to the inner wall of the sliding cylinder 52 through a limiting ring. A pressure plate 57 is fixedly connected to the bottom of the pressure column 53. A pressure column 53 is fixedly connected to the outer wall of the pressure column 53. A top spring 55 is fixedly connected to the outer wall of the top of the limiting plate 56. When the upper mold 1 descends to perform the folding operation, the sliding cylinder 52 descends together with the upper mold 1. The pressure plate 57 first contacts the surface of the steel door. Since the pressure column 53 can slide inside the sliding cylinder 52, and with the action of the tension spring 54 and the top spring 55, the pressure plate 57 can adaptively adjust according to the undulation of the surface of the steel door.
[0025] One end of the top spring 55 away from the limiting plate 56 is fixedly connected to the bottom of the fixing block 51. The top of the fixing block 51 is fixedly connected to the outer wall of the bottom of the upper mold 1. A tension spring 54 is fixedly connected to the outer wall of the pressure column 53. The bottom of the tension spring 54 is fixedly connected to the outer wall of the top of the sliding cylinder 52.
[0026] The folding mold mainly consists of an upper mold 1, a lower mold 2, a conveyor table 3, a pressing component 4, and a limiting component 5. The bottom of the conveyor table 3 is fixedly connected to the outer wall of the top of the lower mold 2, providing a platform for conveying and placing the steel door to be folded. The bottom outer wall of the upper mold 1 is fixedly connected to the limiting component 5 and the pressing component 4. The limiting component 5 is used to position and limit the steel door during the folding process, while the pressing component 4 plays the role of folding. The upper mold 1 and the lower mold 2 are slidably connected. The upper mold 1 is pressed by an external hydraulic component, and the folding operation of the steel door is achieved through the relative movement of the two.
[0027] The pressing assembly 4 includes a mounting block 41, a limiting frame 42, a locking block 43, a limiting bracket 44, a side roller 45, and a pressure roller 46. The mounting block 41 is fixed to the bottom outer wall of the upper mold 1, the limiting frame 42 is fixed to the outer walls on both sides of the mounting block 41, and the locking blocks 43 on the outer walls on both sides of the limiting bracket 44 engage with the inner wall of the limiting frame 42, so that the limiting bracket 44 can slide on the bottom inner wall of the mounting block 41.
[0028] Before the folding operation begins, the steel door to be folded is placed on the conveyor table 3 and conveyed to the pressing assembly 4. When the folding operation is performed, the upper mold 1 moves downward, causing the pressing assembly 4 to descend together. At this time, the side roller 45 and the pressure roller 46 at the bottom of the limiting frame 44 first contact the steel door. The side roller 45 can rotate on the inner wall at the bottom of the limiting frame 44 and can roll on the edge of the steel door, playing a guiding and auxiliary positioning role, while reducing friction with the surface of the steel door. The pressure roller 46 can also rotate on the inner wall at the bottom of the limiting frame 44. Its main function is to apply a certain pressure to the steel door, so that the steel door remains stable during the folding process and prevents displacement or deformation.
[0029] When it is necessary to replace the pressure roller 46 and the side roller 45, simply release the locking blocks 43 on both sides of the limiting frame 44 from the limiting frame 42, and the limiting frame 44 can be taken out. Then, slide the new limiting frame 44 into the mounting block 41 along the inner wall of the bottom of the mounting block 41, and lock the locking blocks 43 into the limiting frame 42 to restrict the position of the limiting frame 44.
[0030] The limiting component 5 consists of a fixed block 51, a sliding cylinder 52, a pressure column 53, a tension spring 54, a top spring 55, a limiting plate 56, and a pressure plate 57. The fixed block 51 is fixed to the bottom outer wall of the upper mold 1. The sliding cylinder 52 is arranged in a linear array along the outer wall of the fixed block 51, and the sliding cylinder 52 can slide on the inner wall of the fixed block 51. The pressure column 53 slides on the inner wall of the sliding cylinder 52 through a limiting ring. The bottom of the pressure column 53 is fixedly connected to the pressure plate 57, and the top is fixedly connected to one end of the tension spring 54. The other end of the tension spring 54 is fixed to the top outer wall of the sliding cylinder 52. The limiting plate 56 is fixed to the bottom outer wall of the sliding cylinder 52. One end of the top spring 55 is fixedly connected to the top outer wall of the limiting plate 56, and the other end is fixedly connected to the bottom of the fixed block 51.
[0031] When the upper mold 1 descends to perform the folding operation, the sliding cylinder 52 descends together with the upper mold 1, and the pressure plate 57 first contacts the surface of the steel door. Since the pressure column 53 can slide inside the sliding cylinder 52, and with the action of the tension spring 54 and the top spring 55, the pressure plate 57 can adaptively adjust according to the undulation of the steel door surface to ensure that uniform pressure can be applied to all parts of the steel door.
[0032] During the folding process, the top spring 55 provides a certain supporting force to keep the sliding cylinder 52 and the pressure column 53 in a relatively stable positional relationship. The tension spring 54 plays a role in buffering and resetting when the pressure column 53 is subjected to external force. For example, when the surface of the steel door is uneven, the pressure column 53 will slide upward in the sliding cylinder 52, the tension spring 54 will be stretched, and the top spring 55 will be compressed. When the external force disappears, the tension spring 54 and the top spring 55 will restore the pressure column 53 and the pressure plate 57 to their original positions and continue to limit and apply pressure to the steel door.
[0033] The limiting component 5 can limit the position of the steel door during the folding process, preventing it from shifting during the folding process.
[0034] When using this folding die, the steel door to be folded is first placed on the conveyor table 3 and conveyed to the designated position above the lower die 2 by the conveyor table 3. Then, the upper die 1 begins to move downward, and the side rollers 45 and pressure rollers 46 of the pressing assembly 4 first contact the steel door to perform preliminary positioning and pressing treatment.
[0035] At the same time, the pressure plate 57 of the limiting component 5 also contacts the surface of the steel door. Through the action of the tension spring 54 and the top spring 55, the steel door is limited and uniform pressure is applied. When the pressing component 4 and the limiting component 5 are both acting stably on the steel door, the upper mold 1 continues to descend and cooperates with the lower mold 2 to complete the folding operation of the steel door.
[0036] After the folding is completed, the upper mold 1 moves upward and separates from the lower mold 2. The pressing component 4 and the limiting component 5 also rise accordingly, releasing their effect on the steel door. Finally, the folded steel door is conveyed out through the conveyor table 3, completing the entire folding process.
[0037] 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.
[0038] 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 die for steel doors, comprising an upper die (1) and a lower die (2), characterized in that, It also includes a conveyor (3), the bottom of which is fixedly connected to the outer wall of the top of the lower mold (2), a limit assembly (5) is fixedly connected to the outer wall of the bottom of the upper mold (1), and a pressing assembly (4) is fixedly connected to the outer wall of the bottom of the upper mold (1). The pressing assembly (4) includes a mounting block (41), a limit frame (44) is slidably connected to the inner wall of the bottom of the mounting block (41), a side roller (45) is rotatably connected to the inner wall of the bottom of the limit frame (44), and a pressure roller (46) is rotatably connected to the inner wall of the bottom of the limit frame (44).
2. The folding mold for steel doors according to claim 1, characterized in that: The outer walls on both sides of the limiting frame (44) are fixedly connected with the locking blocks (43), and the outer walls on both sides of the mounting block (41) are fixedly connected with the limiting frame (42). The inner wall of the limiting frame (42) is engaged with the outer wall of the locking block (43), and the inner wall of the upper mold (1) is slidably connected with the outer wall of the lower mold (2).
3. The folding mold for steel doors according to claim 1, characterized in that: The limiting component (5) includes a fixed block (51), a sliding cylinder (52) is slidably connected to the inner wall of the fixed block (51), and the sliding cylinder (52) is arranged in a linear array along the outer wall of the fixed block (51). A limiting plate (56) is fixedly connected to the outer wall of the bottom of the sliding cylinder (52), and a pressure column (53) is slidably connected to the inner wall of the sliding cylinder (52) through a limiting ring. A pressure plate (57) is fixedly connected to the bottom of the pressure column (53).
4. A folding mold for steel doors according to claim 3, characterized in that: The outer wall of the pressure column (53) is fixedly connected to the pressure column (53), and the outer wall of the top of the limiting plate (56) is fixedly connected to the top spring (55).
5. A folding mold for steel doors according to claim 4, characterized in that: The top spring (55) is fixedly connected to the bottom of the fixing block (51) at one end away from the limiting plate (56), and the top of the fixing block (51) is fixedly connected to the outer wall of the bottom of the upper mold (1).
6. A folding mold for steel doors according to claim 3, characterized in that: A tension spring (54) is fixedly connected to the outer wall of the pressure column (53), and the bottom of the tension spring (54) is fixedly connected to the outer wall of the top of the sliding cylinder (52).