Edge folding mechanism with downward bending function and hot bending machine
The bending mechanism enhances bending quality and reduces costs by allowing adjustable angles without separate molds, addressing issues in existing bending technologies.
Patent Information
- Application Number
- CN202422217214.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the prior art, sheet bending processing has poor bending effect, easy rebound, and different molds need to be designed according to different angles, resulting in high production costs.
The edge folding mechanism with down-bending function is adopted, including a frame, a cradle, a molding unit, a heating assembly and a down-pressing assembly. Through the cooperation of the heating plate and the lower bending moving die, flexible bending of the sheet can be achieved, and bending between 90 degrees and 180 degrees can be achieved without changing the mold.
It improves the quality of sheet bending processing, reduces production costs, improves production efficiency, and enhances the flexibility of use and maintenance convenience.
Smart Images
Figure CN223099933U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a bending device, in particular to a hemming mechanism with a downward bending function and a hot bending machine. Background Art
[0002] When bending electronic product materials, such as downward bending of sheets like mylar sheets and insulating sheets, the current processing method generally involves designing a mold according to the angle required for bending the sheet. During processing, the sheet is placed on the mold, and the sheet is pressed against and fitted to the mold to achieve bending of the sheet. This bending method has a poor bending effect on the sheet, and the sheet is prone to rebound after bending. Moreover, when different angles need to be bent for the sheet, molds with different forming angles need to be designed separately, resulting in high production costs. Therefore, there is an urgent need for a hemming mechanism that can achieve a better bending effect on the sheet and is more flexible in bending. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a hemming mechanism with a downward bending function and a hot bending machine to solve one or more technical problems existing in the prior art, and at least provide a beneficial alternative or creative condition.
[0004] The solution of the utility model to solve its technical problems is as follows:
[0005] A hemming mechanism with a downward bending function includes: a frame; a material supporting member connected to the frame; a forming unit including a downward bending fixed mold and a downward bending movable mold, the downward bending fixed mold is connected to the frame, a bending protrusion extending in a direction away from the material supporting member is provided on the top side of the downward bending fixed mold, and the downward bending movable mold can approach or move away from directly below the bending protrusion on the frame; a heating component provided on the frame, the heating component has a heating plate that can approach or move away from the downward bending fixed mold downward; a downward pressing component provided on the frame, the downward pressing component has a pressing block that can approach or move away from the material supporting member downward.
[0006] The technical solution has at least the following beneficial effects: The sheet to be bent is first placed on the material supporting member. When the sheet needs to be bent, the pressing block in the pressing component moves downward close to the sheet and presses the sheet tightly on the material supporting member. The heating plate in the heating component moves downward close to the sheet to heat the sheet. And the heating plate continues to press downward to bend the sheet along the lower bending fixed die. Then the heating plate moves upward to reset. And the lower bending moving die moves on the machine frame in the direction close to the bending protrusion to continue bending the bending position of the sheet. According to different bending requirements, the lower bending moving die can be moved to different positions to meet the bending requirements of different angles of the sheet. For example, when the lower bending moving die moves to the position on the side of the bending protrusion, the sheet can be bent within 90 degrees. When the lower bending moving die moves directly below the bending protrusion, the sheet can be bent within the angle range of 90 degrees to 180 degrees. After completion, the lower bending moving die moves away from the bending protrusion to prepare for bending the next workpiece. Bending the sheet after heating in this way makes the bending position not easy to rebound after forming, effectively improving the quality of bending processing of sheets such as mylar sheets and insulating sheets. And there is no need to design different molds according to different bending angles, reducing production costs and improving production efficiency.
[0007] As a further improvement of the above technical solution, the lower bending fixed die includes a forming seat and a forming plate. The forming seat is connected to the machine frame. The forming plate is detachably connected to the top side of the forming seat. The forming plate protrudes in the direction away from the material supporting member to form the bending protrusion. The forming plate can be removed from the forming seat, which is convenient for subsequent use and maintenance. And the forming plate can be replaced according to the specifications and bending requirements of different sheets, improving the flexibility of use.
[0008] As a further improvement of the above technical solution, the forming unit further includes a bottom die and a side die. The bottom die is connected to the machine frame. The bottom die is arranged on the machine frame on the side away from the material supporting member. The height of the side die is greater than the height of the bottom die. The number of heating plates is two. One heating plate can move downward close to the bottom die or move upward away from the side die. The forming unit also has the function of bending the sheet upward. Specifically, when one side of the sheet is located on the side die, when the heating plate in the heating component moves downward, one heating plate heats the position of the sheet that needs to be bent. As the heating plate presses down on the sheet, it can be bent and formed at the concave angle position formed by the bottom die and the side die, so that the main body part of the sheet is located on the bottom die, and the bent position of the sheet abuts against the side die, completing the upward bending of the sheet. In this way, upward bending of one side and downward bending of one side of the sheet can be realized in a single bending process of the sheet.
[0009] As a further improvement of the above technical solution, there are two forming units, and the two forming units are respectively located on both sides of the sheet supporting member. There are two heating plates, and the two heating plates are respectively located above the two lower bending fixed dies. Forming units capable of bending the sheet downward are provided on both sides of the sheet supporting member, and the two sides of the sheet can be bent downward simultaneously during a single bending process of the sheet, further enriching the overall usage functions.
[0010] As a further improvement of the above technical solution, the forming unit further includes a first translation driving member connected to the machine frame. The first translation driving member is drivingly connected to the lower bending moving die. The lower bending moving die is slidably connected to the machine frame. The first translation driving member can drive the lower bending moving die to move in a direction close to or away from directly below the bending protrusion. When it is necessary to bend the sheet, the first translation driving member drives the lower bending moving die to approach the bending protrusion, and the sheet is bent. After the bending of the sheet is completed, the first translation driving member drives the lower bending moving die to move away from the bending protrusion.
[0011] As a further improvement of the above technical solution, the heating assembly includes a first lifting driving member connected to the machine frame. The first lifting driving member is drivingly connected to the heating plate. The first lifting driving member can drive the heating plate to move up and down. When it is necessary to bend the sheet, the first lifting driving member drives the heating plate to move downward close to the sheet, heats the sheet, and further presses the sheet downward to initially heat and bend the sheet. After the bending of the sheet is completed, the first lifting driving member drives the heating plate to move upward and reset to prepare for the bending process of the next sheet.
[0012] As a further improvement of the above technical solution, the downward pressing assembly includes a second lifting driving member connected to the machine frame. The second lifting driving member is drivingly connected to the pressing block. The second lifting driving member can drive the pressing block to move up and down. When it is necessary to bend the sheet, the second lifting driving member drives the pressing block to move downward close to the sheet, presses the sheet tightly on the sheet supporting plate. After the bending of the sheet is completed, the second lifting driving member drives the heating plate to move upward and reset to prepare for the bending process of the next sheet.
[0013] A hot bending machine includes the above hemming mechanism with a lower bending function.
[0014] The technical solution has at least the following beneficial effects: Since the hot bending machine is equipped with the above hemming mechanism with a lower bending function, the hot bending machine can heat and bend the sheet, so that the bent position is not easy to rebound after forming, effectively improving the quality of bending processing of sheets such as mylar sheets and insulating sheets, and there is no need to design different molds according to different bending angles, reducing production costs and improving production efficiency. Description of the Drawings
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the attached drawings required in the description of the embodiments. Obviously, the described attached drawings are only a part of the embodiments of the present utility model, rather than all the embodiments. Without creative work, those skilled in the art can also obtain other design solutions and attached drawings based on these attached drawings.
[0016] Figure 1 It is a schematic structural diagram of the hemming mechanism in the first embodiment of the forming unit of the present utility model.
[0017] Figure 2 It is a schematic structural diagram of the hemming mechanism in the second embodiment of the forming unit of the present utility model.
[0018] Figure 3 It is a schematic structural diagram of the hemming mechanism in the third embodiment of the forming unit of the present utility model.
[0019] In the attached drawings: 100 - frame, 200 - material supporting member, 311 - forming seat, 312 - forming plate, 321 - lower bending moving die, 322 - first translation driving member, 331 - bottom die, 332 - side die, 410 - heating plate, 420 - first lifting driving member, 510 - pressing block, 520 - second lifting driving member. Specific embodiments
[0020] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the attached drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative work all fall within the scope of protection of the present utility model. In addition, all the connection relationships mentioned in the text do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection auxiliary components according to the specific implementation situation. Each technical feature in the present invention can be interactively combined without conflicting with each other.
[0021] Refer to Figure 1, A hemming mechanism with a downward bending function, comprising: a frame 100; a material supporting member 200 connected to the frame 100; a forming unit including a downward bending fixed mold and a downward bending moving mold 321, the downward bending fixed mold being connected to the frame 100, a bending protrusion extending in a direction away from the material supporting member 200 being provided on the top side of the downward bending fixed mold, and the downward bending moving mold 321 being movable on the frame 100 closer to or farther from directly below the bending protrusion; a heating assembly provided on the frame 100, the heating assembly having a heating plate 410 that can move downward closer to or upward away from the downward bending fixed mold; a downward pressing assembly provided on the frame 100, the downward pressing assembly having a pressing block 510 that can move downward closer to or upward away from the material supporting member 200.
[0022] As can be seen from the above, the sheet material to be bent first is placed on the material supporting member 200. When bending the sheet material is required, the pressing block 510 in the downward pressing assembly moves downward closer to the sheet material and presses the sheet material tightly against the material supporting member 200. The heating plate 410 in the heating assembly moves downward closer to the sheet material to heat the sheet material, and the heating plate 410 continues to press downward to bend the sheet material along the downward bending fixed mold. Then the heating plate 410 moves upward to reset, and the downward bending moving mold 321 moves on the frame 100 in a direction closer to the bending protrusion to continue bending the bending position of the sheet material. According to different bending requirements, the downward bending moving mold 321 can be moved to different positions to meet the bending requirements of different angles of the sheet material. For example, when the downward bending moving mold 321 is moved to a position on the side of the bending protrusion, bending within 90 degrees of the sheet material can be achieved. When the downward bending moving mold 321 is moved to directly below the bending protrusion, bending within the angular range of 90 degrees to 180 degrees of the sheet material can be achieved. After completion, the downward bending moving mold 321 moves away from the bending protrusion to prepare for bending the next workpiece. Thus, after heating and then bending the sheet material, the bending position is not easily rebounded after forming, effectively improving the quality of bending processing of sheet materials such as mylar sheets and insulating sheets, and there is no need to design different molds according to different bending angles, reducing production costs and improving production efficiency.
[0023] The downward bending fixed mold can be an integrally formed structure to form the bending protrusion for bending the sheet material. In this embodiment, the downward bending fixed mold includes a forming seat 311 and a forming plate 312. The forming seat 311 is connected to the frame 100, the forming plate 312 is detachably connected to the top side of the forming seat 311, and the forming plate 312 protrudes in a direction away from the material supporting member 200 to form the bending protrusion. The forming plate 312 can be removed from the forming seat 311, which is convenient for subsequent use and maintenance, and the forming plate 312 can be replaced according to the specifications and bending requirements of different sheet materials, improving the flexibility of use.
[0024] In the above embodiments, the forming unit can achieve downward bending of the sheet. At this time, as the first embodiment of the forming unit, only one side of the sheet is bent each time the sheet is bent, while in actual processing, both sides of the sheet can be bent each time the sheet is bent. As the second embodiment of the forming unit, as Figure 2 shown, it is possible to achieve upward bending of one side of the sheet and downward bending of the other side each time the sheet is processed. Specifically, the forming unit further includes a bottom die 331 and a side die 332. The bottom die 331 is connected to the frame 100. The bottom die 331 is arranged on the frame 100 on the side away from the sheet supporting member 200. The height of the side die 332 is greater than that of the bottom die 331. There are two heating plates 410. One heating plate 410 can move downward close to the bottom die 331 or move upward away from the side die 332. The forming unit also has the function of upward bending the sheet. Specifically, when one side edge of the sheet is located on the side die 332, when the heating plate 410 in the heating assembly moves downward, one heating plate 410 heats the position of the sheet that needs to be bent. As the heating plate 410 presses down on the sheet, bending and forming can be achieved at the concave angle position formed by the bottom die 331 and the side die 332, so that the main body part of the sheet is located on the bottom die 331, and the bent position of the sheet abuts against the side die 332, completing the upward bending of the sheet. In this way, upward bending of one side of the sheet and downward bending of the other side can be achieved in a single bending process of the sheet.
[0025] As Figure 3 shown, as the third embodiment of the forming unit, it is possible to achieve downward bending of both sides of the sheet each time the sheet is processed. Specifically, there are two forming units. The two forming units are respectively located on both sides of the sheet supporting member 200. There are two heating plates 410. The two heating plates 410 are respectively located above the two downward bending fixed dies. There are forming units on both sides of the sheet supporting member 200 that can downward bend the sheet, and downward bending of both sides of the sheet can be achieved simultaneously in a single bending process of the sheet, further enriching the overall usage function.
[0026] The forming unit is provided with a driving source capable of driving the lower bending moving die 321 to reciprocate horizontally. Specifically, the forming unit further includes a first horizontal driving member 322 connected to the frame 100. The first horizontal driving member 322 is drivingly connected to the lower bending moving die 321. The lower bending moving die 321 is slidably connected to the frame 100. The first horizontal driving member 322 can drive the lower bending moving die 321 to move in a direction close to or away from directly below the bending protrusion. When it is necessary to bend the sheet material, the first horizontal driving member 322 drives the lower bending moving die 321 to approach the bending protrusion, and the sheet material is bent. After the bending of the sheet material is completed, the first horizontal driving member 322 drives the lower bending moving die 321 to move away from the bending protrusion.
[0027] The heating assembly is provided with a driving source capable of driving the first lifting driving member 420 to reciprocate up and down. Specifically, the heating assembly includes a first lifting driving member 420 connected to the frame 100. The first lifting driving member 420 is drivingly connected to the heating plate 410. The first lifting driving member 420 can drive the heating plate 410 to move up and down. When it is necessary to bend the sheet material, the first lifting driving member 420 drives the heating plate 410 to move downward close to the sheet material, heats the sheet material, and further presses down the sheet material to initially heat and bend the sheet material. After the bending of the sheet material is completed, the first lifting driving member 420 drives the heating plate 410 to move upward to reset, so as to prepare for the bending process of the next sheet material.
[0028] The pressing-down assembly is provided with a driving source capable of driving the second lifting driving member 520 to reciprocate up and down. Specifically, the pressing-down assembly includes a second lifting driving member 520 connected to the frame 100. The second lifting driving member 520 is drivingly connected to the pressing block 510. The second lifting driving member 520 can drive the pressing block 510 to move up and down. When it is necessary to bend the sheet material, the second lifting driving member 520 drives the pressing block 510 to move downward close to the sheet material, presses the sheet material tightly against the material supporting plate. After the bending of the sheet material is completed, the second lifting driving member 520 drives the heating plate 410 to move upward to reset, so as to prepare for the bending process of the next sheet material.
[0029] In practical applications, the first lifting driving member 420, the second lifting driving member 520, and the first horizontal driving member 322 are all used to provide the driving force for linear movement, and there are various structural forms, such as air cylinders, hydraulic cylinders, or electric push rods, etc.
[0030] A hot bending machine includes the hemming mechanism with the lower bending function described above.
[0031] Since the hot bending machine is equipped with the hemming mechanism with the above-mentioned lower bending function, the hot bending machine can heat and bend the sheet material, so that the bent position is not easy to rebound after forming, effectively improving the quality of bending processing of sheet materials such as mylar sheets and insulating sheets. Moreover, there is no need to design different molds according to different bending angles, reducing production costs and improving production efficiency.
[0032] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A hemming mechanism with a downward bending function, characterized in that: Comprising: A frame (100); A material supporting member (200), connected to the frame (100); A forming unit, including a lower bending fixed die and a lower bending moving die (321), the lower bending fixed die is connected to the frame (100), a bending protrusion extending in a direction away from the material supporting member (200) is provided on the top side of the lower bending fixed die, and the lower bending moving die (321) can approach or move away from directly below the bending protrusion on the frame (100); A heating assembly, provided on the frame (100), the heating assembly has a heating plate (410) that can move downwardly close to or upwardly away from the lower bending fixed die; A downward pressing assembly, provided on the frame (100), the downward pressing assembly has a pressing block (510) that can move downwardly close to or upwardly away from the material supporting member (200).
2. The hemming mechanism with a downward bending function according to claim 1, characterized in that: The lower bending fixed die includes a forming seat (311) and a forming plate (312), the forming seat (311) is connected to the frame (100), the forming plate (312) is detachably connected to the top side of the forming seat (311), and the forming plate (312) protrudes in a direction away from the material supporting member (200) to form the bending protrusion.
3. The hemming mechanism with a downward bending function according to claim 1, characterized in that: The forming unit further includes a bottom die (331) and a side die (332), the bottom die (331) is connected to the frame (100), the bottom die (331) is provided on the frame (100) on a side of the bottom die (331) away from the material supporting member (200), the height of the side die (332) is greater than the height of the bottom die (331), the number of the heating plates (410) is two, and one heating plate (410) can move downwardly close to the bottom die (331) or upwardly away from the side die (332).
4. A hemming mechanism with a downward bending function according to claim 1, characterized in that: The number of the forming units is two, the two forming units are respectively located on both sides of the material supporting member (200), the number of the heating plates (410) is two, and the two heating plates (410) are respectively located above the two lower bending fixed dies.
5. The hemming mechanism with a downward bending function according to claim 1, characterized in that: The forming unit further includes a first translation driving member (322) connected to the frame (100), the first translation driving member (322) is drivingly connected to the lower bending moving die (321), the lower bending moving die (321) is slidably connected to the frame (100), and the first translation driving member (322) can drive the lower bending moving die (321) to move in a direction close to or away from directly below the bending protrusion.
6. A hemming mechanism with a downward bending function according to claim 1, characterized in that: The heating assembly includes a first lifting driving member (420) connected to the frame (100), the first lifting driving member (420) is drivingly connected to the heating plate (410), and the first lifting driving member (420) can drive the heating plate (410) to move up and down.
7. The hemming mechanism with a downward bending function according to claim 1, characterized in that: The downward pressing assembly includes a second lifting driving member (520) connected to the frame (100), the second lifting driving member (520) is drivingly connected to the pressing block (510), and the second lifting driving member (520) can drive the pressing block (510) to move up and down.
8. A hot bending machine, characterized in that: It includes a hemming mechanism with a lower bending function as described in any one of claims 1 to 7.