A bending device for fire door metal sheets

Abstract

This utility model discloses a bending device for fire door metal sheets, relating to the field of fire door manufacturing technology. It includes a punch assembly with a die assembly at its bottom, and a space for placing the metal sheet between the punch and die assemblies. A support assembly for supporting the metal sheet is located on one side of the die assembly. A positioning assembly is located on the side of the die assembly away from the support assembly. The support assembly includes an adjustment frame with a horizontal adjustment groove in the middle of the side of the adjustment frame away from the die assembly. Two lifting plates are located on the side of the adjustment frame near the horizontal adjustment groove, each with two symmetrical vertical adjustment grooves. By setting the support assembly and positioning assembly, the stability and accuracy of the fire door metal sheet bending process are greatly improved. The sliding frame of the support assembly can be flexibly adjusted to adapt to metal sheets of different sizes, providing stable support and preventing swaying or displacement during bending, ensuring smooth bending operations.

Description

Technical Field

[0001] This utility model relates to the field of fire door manufacturing technology, specifically a bending device for fire door metal sheets. Background Technology

[0002] The metal sheet of a fire door is the core structural layer of the fire door, usually consisting of the door leaf panel and the door frame. It must simultaneously meet the requirements of fire resistance, structural strength, and processing adaptability. In order to enhance the overall rigidity of the metal sheet of the fire door and to facilitate the connection of the metal sheet with other components, a bending machine is required to bend it during production.

[0003] Chinese Patent Publication No. CN 210647881 U discloses a metal sheet bending device, relating to the field of metal sheet bending technology. It addresses the problem that existing metal sheet bending devices have an integral structure of the bending die groove and the device itself, making it impossible to replace and bend metal sheets at different angles during use. The device comprises an operating table on the upper surface of a base, a storage rack on the front end of the base, a support plate on the upper surface of the operating table, a bending plate mounted on the upper surface of the support plate, guide posts on both sides of the support plate, a top plate at the top of the guide posts, a telescopic hydraulic cylinder on the upper surface of the top plate, an extrusion plate at the lower end of the telescopic hydraulic cylinder, an extrusion port at the lower end of the extrusion plate, and an installation groove inside the bending plate, within which a bending die is installed.

[0004] The aforementioned metal sheet bending equipment uses an extrusion plate and a bending plate to bend the metal sheet. However, when bending the metal sheet of a fire door, because the metal sheet of the fire door is rectangular and large in size, it is necessary to support and fix the metal sheet during the bending process. Otherwise, displacement or shaking of the metal sheet will prevent the bending process from proceeding normally. Utility Model Content

[0005] The purpose of this utility model is to provide a bending device for metal sheets of fire doors. Two sliding frames can support the metal sheet, ensuring its stability and preventing it from shaking. In addition, two positioners can position the metal sheet. After the metal sheet is in contact with the two positioners, it can ensure that the metal sheet remains straight and prevent it from tilting, thereby solving the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bending device for fire door metal sheets, comprising:

[0008] A punch assembly for bending sheet metal has a die assembly at its bottom, and there is a space between the punch assembly and the die assembly for placing the sheet metal.

[0009] A support assembly for supporting the metal sheet is located on one side of the die assembly; a positioning assembly is provided on the side of the die assembly away from the support assembly;

[0010] The support assembly includes an adjustment frame with a horizontal adjustment groove in the middle of the side of the adjustment frame away from the die assembly; two lifting plates are provided on the side of the adjustment frame near the horizontal adjustment groove, and two vertical adjustment grooves are symmetrically provided on each of the two lifting plates, and adjustment bolts are provided inside the four vertical adjustment grooves, with all four adjustment bolts located in the horizontal adjustment groove.

[0011] Both lifting plates have fixed frames on the side away from the die assembly at the top, and sliding frames are provided on the inner side of both fixed frames; two rollers are rotatably connected on both sides of the sliding frames near the adjustment frame, and sliding grooves are provided in the middle of both sides of the fixed frames.

[0012] As a further technical solution of this utility model, the die assembly includes a lower beam, on the top of which a plurality of dies are uniformly connected and arranged in a straight line.

[0013] As a further technical solution of this utility model, the side of the adjustment frame away from the lifting plate is fixedly connected to the lower beam; the transverse adjustment groove passes through the adjustment frame, and the length of the transverse adjustment groove is less than the length of the adjustment frame.

[0014] As a further technical solution of this utility model, the top of the lifting plate is integrally provided with a shelf, and the shelf and the lifting plate are distributed in an L-shape; the top of the shelf and the top of the sliding frame are at the same height.

[0015] As a further technical solution of this utility model, a groove is provided in the middle of each of the multiple rollers, and two rollers on the same side of the multiple rollers are located in the sliding groove, and the inner wall of the groove in the middle of the roller is in contact with the inner wall of the sliding groove.

[0016] As a further technical solution of this utility model, the punch assembly includes an upper beam, on which a plurality of punches are uniformly connected in a straight line at the bottom, and the positions of the punches and dies correspond to each other; the two ends of the upper beam are respectively fixedly connected to the telescopic rods of two hydraulic cylinders, and the two hydraulic cylinders are respectively fixedly connected to the two ends of the main frame; the two ends of the upper beam are respectively slidably connected to the two ends of the main frame, and the side of the lower beam away from the adjustment frame is fixedly connected to the main frame.

[0017] As a further technical solution of this utility model, the positioning component includes a transverse platform, on which two positioners for positioning metal plates are slidably connected; both ends of the transverse platform are rotatably connected to lead screws, and the ends of the two lead screws away from the transverse platform are coaxially fixedly connected to handwheels.

[0018] As a further technical solution of this utility model, the two lead screws are respectively threadedly connected to the two movable seats, and a sliding rod is movably connected in the middle of the two movable seats. The top of the two sliding rods is fixedly connected to the bottom of both ends of the transverse platform. The ends of the two movable seats away from the lead screws are respectively connected to the two linear modules, and the sides of the two linear modules away from the movable seats are fixedly connected to the inner walls of both ends of the main frame.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model, by setting up a support component and a positioning component, greatly improves the stability and accuracy of the bending process of the metal sheet of the fire door; the sliding frame of the support component can be flexibly adjusted to adapt to metal sheets of different sizes, supporting them firmly and avoiding swaying or displacement during bending, thus ensuring the smooth progress of the bending work; the two positioners of the positioning component can accurately position the metal sheet, keeping the sheet straight and preventing tilting, thus ensuring the accuracy of the bending angle and position.

[0021] 2. In this utility model, by loosening multiple adjusting bolts, two lifting plates can be moved along the transverse adjusting groove, thereby changing the distance between the two lifting plates, so that the two lifting plates can cooperate to support metal plates of different lengths; in addition, by loosening multiple adjusting bolts, the height of the two lifting plates can also be changed, thereby changing the height of the sliding frame, so that the height of the two sliding frames can be adjusted according to the actual needs of the work.

[0022] 3. In this utility model, by synchronously rotating two handwheels, two lead screws can be rotated, thereby changing the height of the transverse stage and thus changing the height of the two positioners. This ensures that the height of the two positioners is always matched with the height of the two sliding frames, thus ensuring that the two positioners can always position the metal plate. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 2 This utility model Figure 1 Another perspective view.

[0025] Figure 3 This utility model Figure 1 The main view.

[0026] Figure 4 This utility model Figure 1 A partial structural diagram.

[0027] Figure 5 This utility model Figure 4 The main view.

[0028] Figure 6 This is a three-dimensional structural diagram of the support component of this utility model.

[0029] Figure 7 This utility model Figure 6 Side view.

[0030] Figure 8 This utility model Figure 6 Top view.

[0031] Figure 9 This utility model Figure 6 The main view.

[0032] Figure 10 This utility model Figure 9 A magnified view of a portion of the image.

[0033] Figure 11 This is a three-dimensional structural diagram of the positioning component of this utility model.

[0034] Figure 12 This utility model Figure 11 Another perspective view.

[0035] Figure 13 This utility model Figure 11 The main view.

[0036] In the diagram: 1-Punch assembly, 2-Die assembly, 3-Support assembly, 4-Positioning assembly, 5-Controller;

[0037] 11-Upper beam, 12-Punch, 13-Hydraulic cylinder, 14-Main frame, 21-Lower beam, 22-Die, 31-Adjusting frame, 32-Horizontal adjustment groove, 33-Lifting plate, 34-Placement plate, 35-Adjusting bolt, 36-Fixed frame, 37-Sliding frame, 38-Roller, 39-Slide groove, 30-Vertical adjustment groove, 41-Linear module, 42-Moving seat, 43-Horizontal moving platform, 44-Positioner, 45-Slide rod, 46-Screw rod, 47-Handwheel. Detailed Implementation

[0038] 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.

[0039] Please see Figure 1-13 In this embodiment of the utility model, a bending device for fireproof door metal sheets includes...

[0040] The punch assembly 1 is used to bend metal sheets. The bottom of the punch assembly 1 is provided with a die assembly 2, and there is a space between the punch assembly 1 and the die assembly 2 for placing the metal sheet.

[0041] Support component 3, which supports the metal sheet, is located on one side of the die assembly 2; positioning component 4 is provided on the side of the die assembly 2 away from the support component 3;

[0042] The support component 3 includes an adjustment frame 31, on the side of the adjustment frame 31 away from the die component 2, a horizontal adjustment groove 32 is provided in the middle; on the side of the adjustment frame 31 near the horizontal adjustment groove 32, two lifting plates 33 are provided, each of the two lifting plates 33 is symmetrically provided with two vertical adjustment grooves 30, and each of the four vertical adjustment grooves 30 is provided with an adjustment bolt 35 inside, and the four adjustment bolts 35 are all located in the horizontal adjustment groove 32;

[0043] Each of the two lifting plates 33 has a fixed frame 36 fixedly connected to the side away from the die assembly 2 at the upper end. Each of the two fixed frames 36 has a sliding frame 37 on the inner side. Each of the two sliding frames 37 has two rollers 38 rotatably connected to the side of the end near the adjustment frame 31. Each of the two fixed frames 36 has a groove 39 in the middle of the sides.

[0044] By adopting the above technical solution and setting the support component 3 and positioning component 4, the stability and accuracy of the metal sheet bending process of the fire door are greatly improved. The sliding frame 37 of the support component 3 can be flexibly adjusted to adapt to metal sheets of different sizes, supporting them firmly and avoiding shaking or displacement during bending, thus ensuring the smooth progress of the bending work. The two positioners 44 of the positioning component 4 can accurately position the metal sheet, keeping it straight and preventing tilting, thus ensuring the accuracy of the bending angle and position.

[0045] In this embodiment, the die assembly 2 includes a lower beam 21, and a plurality of dies 22 are uniformly connected to the top of the lower beam 21, and the plurality of dies 22 are distributed in a straight line.

[0046] The side of the adjustment frame 31 away from the lifting plate 33 is fixedly connected to the lower beam 21; the transverse adjustment groove 32 passes through the adjustment frame 31, and the length of the transverse adjustment groove 32 is less than the length of the adjustment frame 31.

[0047] The top of the lifting plate 33 is integrally provided with a shelf 34, and the shelf 34 and the lifting plate 33 are arranged in an L-shape; the top of the shelf 34 and the top of the sliding frame 37 are at the same height.

[0048] By adopting the above technical solution, by loosening multiple adjusting bolts 35, the two lifting plates 33 can be moved along the transverse adjusting groove 32, thereby changing the distance between the two lifting plates 33, so that the two lifting plates 33 can cooperate to support metal plates of different lengths; in addition, by loosening multiple adjusting bolts 35, the height of the two lifting plates 33 can also be changed, thereby changing the height of the sliding frame 37, so that the height of the two sliding frames 37 can be adjusted according to the actual needs of the work.

[0049] In this embodiment, a groove is provided in the middle of each of the plurality of rollers 38, and two rollers 38 located on the same side of the plurality of rollers 38 are located in the slide groove 39, and the inner wall of the groove in the middle of the roller 38 is in contact with the inner wall of the slide groove 39.

[0050] The punch assembly 1 includes an upper beam 11, on which a plurality of punches 12 arranged in a straight line are evenly connected at the bottom. The punches 12 and the dies 22 are positioned corresponding to each other. The two ends of the upper beam 11 are fixedly connected to the telescopic rods of two hydraulic cylinders 13, and the two hydraulic cylinders 13 are fixedly connected to the two ends of the main frame 14. The two ends of the upper beam 11 are slidably connected to the two ends of the main frame 14, and the side of the lower beam 21 away from the adjustment frame 31 is fixedly connected to the main frame 14.

[0051] The positioning component 4 includes a transverse stage 43, on which two positioners 44 for positioning metal plates are slidably connected; both ends of the transverse stage 43 are rotatably connected to lead screws 46, and the ends of the two lead screws 46 away from the transverse stage 43 are coaxially fixedly connected to handwheels 47.

[0052] The two lead screws 46 are threadedly connected to the two movable seats 42 respectively. Each of the two movable seats 42 is movably connected to a slide rod 45. The top of the two slide rods 45 is fixedly connected to the bottom of both ends of the transverse platform 43 respectively. The ends of the two movable seats 42 away from the lead screws 46 are respectively connected to the two linear modules 41. The sides of the two linear modules 41 away from the movable seats 42 are fixedly connected to the inner walls of both ends of the main frame 14 respectively.

[0053] By adopting the above technical solution, the two lead screws 46 can be rotated by synchronously rotating the two handwheels 47, thereby changing the height of the transverse stage 43, and then changing the height of the two positioners 44, so that the two positioners 44 can always match the height of the two sliding frames 37, ensuring that the two positioners 44 can always position the metal plate.

[0054] The working principle of this utility model is as follows: by setting the support component 3 and the positioning component 4, the stability and accuracy of the metal sheet of the fire door are greatly improved; the sliding frame 37 of the support component 3 can be flexibly adjusted to adapt to metal sheets of different sizes, supporting them firmly and avoiding shaking or displacement during bending, thus ensuring the smooth progress of the bending work; the two positioners 44 of the positioning component 4 can accurately position the metal sheet, keeping the sheet straight and preventing tilting, thus ensuring the accuracy of the bending angle and position.

[0055] By loosening multiple adjusting bolts 35, the two lifting plates 33 can be moved along the transverse adjusting groove 32, thereby changing the distance between the two lifting plates 33, so that the two lifting plates 33 can cooperate to support metal plates of different lengths; in addition, by loosening multiple adjusting bolts 35, the height of the two lifting plates 33 can also be changed, thereby changing the height of the sliding frame 37, so that the height of the two sliding frames 37 can be adjusted according to the actual needs of the work.

[0056] By synchronously rotating the two handwheels 47, the two lead screws 46 can be rotated, thereby changing the height of the transverse stage 43, and in turn changing the height of the two positioners 44, so that the two positioners 44 can always match the height of the two sliding frames 37, ensuring that the two positioners 44 can always position the metal plate.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bending device for fire door metal sheets, characterized in that: include The punch assembly (1) for bending metal sheets has a die assembly (2) at the bottom, and there is a space between the punch assembly (1) and the die assembly (2) for placing the metal sheet. Support component (3), which is used to support the metal sheet, is located on one side of the die assembly (2); a positioning component (4) is provided on the side of the die assembly (2) away from the support component (3). The support component (3) includes an adjustment frame (31), which has a horizontal adjustment groove (32) in the middle on the side away from the die component (2); the adjustment frame (31) has two lifting plates (33) on the side near the horizontal adjustment groove (32), and each of the two lifting plates (33) has two vertical adjustment grooves (30) symmetrically arranged, and each of the four vertical adjustment grooves (30) has an adjustment bolt (35) inside, and the four adjustment bolts (35) are all located in the horizontal adjustment groove (32); The upper ends of the two lifting plates (33) are fixedly connected to the side away from the die assembly (2) with a fixed frame (36), and the inner side of the two fixed frames (36) is provided with a sliding frame (37); the two sliding frames (37) are rotatably connected to two rollers (38) on both sides of the end near the adjustment frame (31), and the fixed frame (36) is provided with a sliding groove (39) in the middle of both sides.

2. The fire door metal sheet bending device according to claim 1, characterized in that: The die assembly (2) includes a lower beam (21), on the top of which a plurality of dies (22) are uniformly connected and arranged in a straight line.

3. The fire door metal sheet bending device according to claim 2, characterized in that: The side of the adjustment frame (31) away from the lifting plate (33) is fixedly connected to the lower beam (21); the transverse adjustment groove (32) passes through the adjustment frame (31), and the length of the transverse adjustment groove (32) is less than the length of the adjustment frame (31).

4. The fire door metal sheet bending device according to claim 1, characterized in that: The top of the lifting plate (33) is integrally provided with a shelf (34), and the shelf (34) and the lifting plate (33) are arranged in an L-shape; the top of the shelf (34) and the top of the sliding frame (37) are at the same height.

5. The fire door metal sheet bending device according to claim 1, characterized in that: Each of the rollers (38) has a groove in the middle, and two rollers (38) on the same side are located in the groove (39), with the inner wall of the groove in the middle of the roller (38) fitting against the inner wall of the groove (39).

6. The fire door metal sheet bending device according to claim 2, characterized in that: The punch assembly (1) includes an upper beam (11), on which a plurality of punches (12) are uniformly connected in a straight line at the bottom, and the positions of the punches (12) and the dies (22) correspond to each other; the two ends of the upper beam (11) are fixedly connected to the telescopic rods of two hydraulic cylinders (13), and the two hydraulic cylinders (13) are fixedly connected to the two ends of the main frame (14); the two ends of the upper beam (11) are slidably connected to the two ends of the main frame (14), and the side of the lower beam (21) away from the adjustment frame (31) is fixedly connected to the main frame (14).

7. The fire door metal sheet bending device according to claim 6, characterized in that: The positioning component (4) includes a transverse stage (43), on which two positioners (44) for positioning metal plates are slidably connected; both ends of the transverse stage (43) are rotatably connected to lead screws (46), and the ends of the two lead screws (46) away from the transverse stage (43) are coaxially fixedly connected to handwheels (47).

8. The fire door metal sheet bending device according to claim 7, characterized in that: The two lead screws (46) are threadedly connected to the two movable seats (42), and the two movable seats (42) are movably connected to the middle of the two slide rods (45). The tops of the two slide rods (45) are fixedly connected to the bottom of both ends of the transverse platform (43). The ends of the two movable seats (42) away from the lead screws (46) are respectively connected to the two linear modules (41), and the sides of the two linear modules (41) away from the movable seats (42) are fixedly connected to the inner walls of both ends of the main frame (14).

Images