Blank pressing machine for flanging back edges

Abstract

The utility model relates to an edge pressing machine for flanging a back edge. The edge pressing machine comprises a rack, an edge pressing die, edge pressing devices and a pulling device, wherein the edge pressing die is arranged on the rack; the edge pressing devices are positioned on one side or two opposite sides of the edge pressing die; the blank pressing die is provided with a through hole corresponding to the back fillet strip-shaped hole; the edge pressing device comprises an edge pressing mechanism and a first driving part for driving the edge pressing mechanism to move towards the through hole; the edge pressing mechanism comprises an edge pressing plate and a second driving part for driving the edge pressing plate to rotate towards the bottom of the edge pressing die; the pulling device comprises a grabbing mechanism used for clamping the back ridges and a driving mechanism used for driving the grabbing mechanism to move in the direction away from the blank pressing die. Through the combined action of the edge pressing device and the pulling device, after the back edge is pulled by the pulling device until the strip-shaped hole is aligned with the through hole, the edge pressing device can carry out edge pressing adjustment on the turned-over edges, continuous and automatic edge pressing adjustment on all the turned-over edges is achieved through continuous circulating actions, manual edge pressing operation is not needed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of building supplies processing equipment, and more specifically, to a hemming machine for the hemming of a back rib. Background Art

[0002] For the back ribs used in existing building templates, in order to prevent the problem that when the bolt is inserted or withdrawn from the strip hole during the installation of the back rib, it gets stuck at the edge of the strip hole, resulting in an unsmooth situation. For example, the patent with publication number CN115045501A discloses a back rib, and the strip hole on the back rib has an inner flanging, which can avoid the problem of jamming when the bolt is inserted or withdrawn through the inner flanging.

[0003] The flanging on the back rib is often processed by a stamping process. The back rib with the cut size is placed into the stamping die, and stamping is carried out at the strip hole to generate the flanging. However, after the stamping is completed, the flanging may rebound due to the action of stress. At this time, the angle between the flanging and the edge of the strip hole is still less than 90 degrees, which hinders the insertion of the bolt. But even if there is no rebound and the flanging and the edge of the strip hole are at 90 degrees, during the insertion process of the bolt, there is a large area of contact with the flanging, and the frictional force will be relatively large. When the bolt is withdrawn, the bolt may get stuck at the edge of the flanging. Therefore, after the stamping is completed, the flanging needs to be adjusted so that the angle between the flanging and the edge of the strip hole is greater than 90 degrees. This can reduce the friction between the bolt and the flanging, and since the edge of the flanging faces downwards when the bolt is withdrawn and does not contact the bolt, the bolt will not get stuck. However, the workload of manually adjusting each flanging one by one is large and the labor intensity is high. Summary of the Utility Model

[0004] The utility model aims to overcome the problems of large workload and high labor intensity in the adjustment of the back rib flanging in the above-mentioned prior art, and provides a hemming machine for the back rib flanging, which can automatically and continuously adjust all the flangings of the back rib without manual operation.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is: a hemming machine for the back rib flanging, including a frame, a hemming die, a hemming device located on one side or opposite sides of the hemming die, and a pulling device located at the discharge end of the hemming die, all of which are installed on the frame; the hemming die is provided with a through hole corresponding to the strip hole of the back rib; the hemming device includes a hemming mechanism and a first driving member for driving the hemming mechanism to move towards the through hole, and the hemming mechanism includes a hemming plate and a second driving member for driving the hemming plate to rotate towards the bottom direction of the hemming die; the pulling device includes a grasping mechanism for clamping the back rib and a driving mechanism for driving the grasping mechanism to move away from the hemming die.

[0006] In the above technical solution, the back rib that has completed the flanging stamping is loaded into the edge pressing die. One end of the back rib passes through the outlet of the edge pressing die and is clamped by the grasping mechanism. At this time, the strip hole of the back rib faces the through hole of the edge pressing die. The first driving member drives the edge pressing mechanism to move towards the through hole direction, so that the edge pressing plate passes through the through hole and extends into the back rib. The second driving member drives the edge pressing plate to rotate towards the bottom surface of the back rib. While the edge pressing plate rotates, it presses the flanging towards the bottom of the back rib, making the angle between the flanging and the edge of the strip hole greater than 90 degrees. After pressing the flanging, the edge pressing device resets. The pulling device pulls the back rib to move away from the edge pressing die until the next strip hole of the back rib aligns with the through hole, and then the edge pressing device moves again to perform edge pressing. By repeating the above process, until the flanging of the entire back rib is adjusted, the back rib is taken off the rack. Among them, in order to facilitate the edge pressing plate to extend into the through hole, the size of the edge pressing plate is smaller than that of the through hole.

[0007] Preferably, through holes are arranged on both sides of the edge pressing die; two edge pressing devices are provided, respectively located on both sides of the edge pressing die; the edge pressing devices can adjust the flangings on both sides of the back rib at the same time, improving the processing efficiency. The edge pressing mechanism further includes a bottom plate slidably connected to the rack, the second driving member is fixedly connected to the bottom plate, the output end of the second driving member is connected to the edge pressing plate, and one end of the edge pressing plate away from the second driving member is rotatably connected to the bottom plate. The first driving member drives the bottom plate to move towards the through hole direction. After the edge pressing plate moves in place, the second driving member drives the edge pressing plate to rotate to adjust the flanging. By slidingly connecting the bottom plate to the rack, the movement of the bottom plate is more stable.

[0008] Preferably, a first connecting ear is arranged on the top surface of the edge pressing plate, and a second connecting ear is arranged at one end of the bottom surface of the edge pressing plate away from the first connecting ear. The first connecting ear is rotatably connected to the output end of the second driving member, and the second connecting ear is rotatably connected to the bottom plate. The first connecting ear and the second connecting ear are located at both ends of the edge pressing plate, and the second connecting ear is close to the through hole, which can make the edge pressing plate rotate at a larger angle with a smaller amplitude and better press the flanging downward.

[0009] Preferably, a slide rail is arranged on the rack, and the bottom plate is installed on the slide rail. By means of the slide rail, the movement resistance of the bottom plate is reduced, and at the same time, the movement stability is improved.

[0010] Preferably, a position detection sensor is arranged on the rack; the position detection sensor is used to detect the moving distance of the bottom plate.

[0011] Preferably, a positioning device is further installed on the frame. A hollowed-out portion is provided at the top of the flanging die. The positioning device includes a pressing head for extending into the hollowed-out portion and a third driving member for driving the pressing head to move; the positioning device is located at the top of the flanging die. Before the flanging device moves, the third driving member drives the pressing head to pass through the hollowed-out portion and abut against the top surface of the back rib, thereby pressing the back rib tightly to prevent the back rib from moving during flanging and affecting the effect.

[0012] Preferably, the grasping mechanism includes a connecting seat connected to the driving mechanism, a limiting arm connected to the connecting seat, a clamping jaw rotatably connected to the limiting arm, and a fourth driving member for driving the clamping jaw to rotate; a supporting portion for extending into the back rib is provided on the limiting arm, and the end of the clamping jaw rotates towards the direction where the supporting portion is located under the action of the fourth driving member. After the back rib passes through the stamping die, its end abuts against the limiting arm and the supporting portion of the limiting arm extends into the back rib and fits with the inner top surface of the back rib. At this time, the fourth driving member drives the clamping jaw to rotate around the limiting arm, so that the end of the clamping jaw rotates towards the supporting portion. If there is no back rib, the end of the clamping jaw will abut against the top surface of the supporting portion, and since the supporting portion is located inside the back rib, it becomes the clamping jaw pressing against the top surface of the back rib, thereby clamping the back rib together with the supporting portion.

[0013] Preferably, the driving mechanism includes a sliding plate slidably connected to the frame, a motor installed on the sliding plate, and a gear installed on the output shaft of the motor; a rack meshing with the gear is installed on the frame; the connecting seat is connected to the sliding plate. The gear rotates and moves along the rack under the drive of the motor, so that the sliding plate slides on the frame, and the mounting seat connected to the sliding plate can also move together with the sliding plate.

[0014] Preferably, a sliding rod is installed on the frame, and the sliding plate is slidably connected to the frame through the sliding rod. The sliding rod can increase the sliding stability between the sliding plate and the frame.

[0015] Preferably, a supporting member is provided at the discharge end of the flanging die on the frame. The supporting member is located below the clamping jaw, and the top surface of the supporting member is flush with the bottom surface of the discharge port of the flanging die. After the back rib passes through the discharge port of the flanging die and is in the state of being clamped by the grasping mechanism, the bottom surface of the back rib contacts the top surface of the supporting member, so that the back rib can be supported and prevented from being bent after passing through the flanging die. For the part of the back rib that has not entered the flanging die, it can be manually supported or provided with a supporting table.

[0016] Compared with the prior art, the beneficial effects are as follows: through the combined action of the edge pressing device and the pulling device, after the back rib is pulled by the pulling device until the strip hole is aligned with the through hole, the edge pressing device can perform edge pressing adjustment on the flanging. Through continuous cyclic actions, continuous and automatic edge pressing adjustment of all flangings can be achieved, without manual edge pressing operation, improving work efficiency and reducing labor intensity. Brief Description of the Drawings

[0017] Figure 1 is a perspective view of a flanging edge pressing machine for a back rib of the present utility model;

[0018] Figure 2 is a schematic structural diagram of an edge pressing die, an edge pressing device and a positioning device of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the pulling device of the present utility model;

[0020] Figure 4 is Figure 1 a partial enlarged view of position A of Detailed Embodiment

[0021] The drawings are only for illustrative purposes and should not be construed as limitations on this patent; for better illustration of this embodiment, some components in the drawings are omitted, enlarged or reduced, and do not represent the actual dimensions of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and should not be construed as limitations on this patent.

[0022] In the drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationships in the drawings are only for illustrative purposes and should not be construed as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0024] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The technical solution of the present utility model will be further specifically described below through specific embodiments in conjunction with the drawings:

[0026] Embodiment 1

[0027] As Figure 1-2 Shown in FIG. 1 is Embodiment 1 of a hemming press for back rib flanging, which includes a frame 1, a hemming die 2 both installed on the frame 1, a hemming device located on one side or opposite sides of the hemming die 2, and a pulling device located at the discharge end of the hemming die 2; the hemming die 2 is provided with a through hole 201 corresponding to the back rib strip hole; the hemming device includes a hemming mechanism 3 and a first driving member 4 for driving the hemming mechanism 3 to move towards the through hole 201, and the hemming mechanism 3 includes a hemming plate 301 and a second driving member 302 for driving the hemming plate 301 to rotate towards the bottom of the hemming die 2; the pulling device includes a grasping mechanism 5 for clamping the back rib and a driving mechanism 6 for driving the grasping mechanism 5 to move away from the hemming die 2.

[0028] In this embodiment, through holes 201 are provided on both sides of the hemming die 2; there are two hemming devices, which are respectively located on both sides of the hemming die 2; the hemming devices can simultaneously adjust the flanging on both sides of the back rib, improving the processing efficiency. The hemming mechanism 3 further includes a bottom plate 303 slidably connected to the frame 1, the second driving member 302 is fixedly connected to the bottom plate 303, the output end of the second driving member 302 is connected to the hemming plate 301, and one end of the hemming plate 301 away from the second driving member 302 is rotatably connected to the bottom plate 303. The first driving member 4 is connected to the bottom plate 303, and the first driving member 4 drives the bottom plate 303 to move towards the through hole 201, and only after the hemming plate 301 moves in place does the second driving member 302 drive the hemming plate 301 to rotate to adjust the flanging. By slidingly connecting the bottom plate 303 to the frame 1, the movement of the bottom plate 303 is made more stable.

[0029] Further, a first connecting ear 3011 is provided on the top surface of the hemming plate 301, and a second connecting ear 3012 is provided at one end of the bottom surface of the hemming plate 301 away from the first connecting ear 3011. The first connecting ear 3011 is rotatably connected to the output end of the second driving member 302, and the second connecting ear 3012 is rotatably connected to the bottom plate 303. The first connecting ear 3011 and the second connecting ear 3012 are located at both ends of the hemming plate 301, and the second connecting ear 3012 is close to the through hole 201, which can make the hemming plate 301 rotate at a larger angle with a smaller amplitude and better press the flanging downward. A slide rail 101 is provided on the frame 1, and the bottom plate 303 is installed on the slide rail 101. The slide rail 101 reduces the movement resistance of the bottom plate 303 and improves the movement stability at the same time. A position detection sensor 102 is provided on the frame 1; the position detection sensor 102 is used to detect the moving distance of the bottom plate 303. When the hemming plate 301 extends into the back rib for a sufficient distance, the position detection sensor 102 is triggered to confirm that the hemming plate 301 is in place.

[0030] Specifically, a positioning device 7 is further installed on the frame 1. A hollow portion 202 is provided at the top of the hemming die 2. The positioning device 7 includes a pressing head 701 for extending into the hollow portion 202 and a third driving member 702 for driving the pressing head 701 to move; the positioning device 7 is located at the top of the hemming die 2. Before the hemming device moves, the third driving member 702 drives the pressing head 701 to pass through the hollow portion 202 and abut against the top surface of the back rib, so as to press the back rib tightly and prevent the back rib from moving during hemming and affecting the effect.

[0031] In this embodiment, the first driving member 4, the second driving member 302, and the third driving member 702 can all be cylinders.

[0032] Working principle or process of this embodiment: The back rib that has completed flanging stamping is loaded into the edge pressing die 2. One end of the back rib passes through the outlet of the edge pressing die 2 and is clamped by the grasping mechanism 5. At this time, the strip hole of the back rib faces the through hole 201 of the edge pressing die 2. The pressing head 701 of the positioning device 7 is driven by the third driving member 702 to pass through the hollow hole and press the back rib. The first driving member 4 drives the edge pressing mechanism 3 to move towards the through hole 201, so that the edge pressing plate 301 passes through the through hole 201 and extends into the back rib. The second driving member 302 drives the edge pressing plate 301 to rotate towards the bottom surface of the back rib. While the edge pressing plate 301 rotates, it presses the flanging towards the bottom of the back rib, making the angle between the flanging and the edge of the strip hole greater than 90 degrees. After pressing the flanging, the edge pressing device and the positioning device 7 reset. The pulling device pulls the back rib to move away from the edge pressing die 2 until the next strip hole of the back rib aligns with the through hole 201, and then the positioning device 7 and the edge pressing device move successively to achieve edge pressing. By repeating the above process, until the flanging of the entire back rib is adjusted, the back rib is taken off the rack 1. In order to facilitate the edge pressing plate 301 to extend into the through hole 201, the size of the edge pressing plate 301 is smaller than that of the through hole 201.

[0033] Beneficial effects of this embodiment: Through the combined action of the edge pressing device and the pulling device, after the back rib is pulled by the pulling device until the strip hole aligns with the through hole 201, the edge pressing device can perform edge pressing adjustment on the flanging. Through continuous cyclic actions, continuous and automatic edge pressing adjustment of all flangings is achieved, eliminating the need for manual edge pressing operations, improving work efficiency and reducing labor intensity.

[0034] Embodiment 2

[0035] An embodiment 2 of a flanging edge pressing machine for a back rib further defines the pulling device on the basis of embodiment 1.

[0036] As Figure 3As shown in the figure, the grasping mechanism 5 includes a connecting seat 501 connected to the driving mechanism 6, a limiting arm 502 connected to the connecting seat 501, a clamping jaw 503 rotatably connected to the limiting arm 502, and a fourth driving member 504 for driving the clamping jaw 503 to rotate. The fourth driving member 504 is a cylinder. The limiting arm 502 is provided with a supporting portion 5021 for extending into the back rib. The end of the clamping jaw 503 rotates towards the direction where the supporting portion 5021 is located under the action of the fourth driving member 504. After the back rib passes through the stamping die, its end abuts against the limiting arm 502, and the supporting portion 5021 of the limiting arm 502 extends into the back rib and fits against the inner top surface of the back rib. At this time, the fourth driving member 504 drives the clamping jaw 503 to rotate around the limiting arm 502, so that the end of the clamping jaw 503 rotates towards the supporting portion 5021. If there is no back rib, the end of the clamping jaw 503 will abut against the top surface of the supporting portion 5021. Since the supporting portion 5021 is located inside the back rib, it becomes the clamping jaw 503 pressing against the top surface of the back rib, thereby clamping the back rib together with the supporting portion 5021.

[0037] In this embodiment, as Figure 1 and 3 shown, the driving mechanism 6 includes a sliding plate 601 slidably connected to the machine frame 1, a motor 602 installed on the sliding plate 601, and a gear 603 installed on the output shaft of the motor 602. A rack 105 meshing with the gear 603 is installed on the machine frame 1. The connecting seat 501 is connected to the sliding plate 601. The gear 603 rotates and moves along the rack 105 under the drive of the motor 602, so that the sliding plate 601 slides on the machine frame 1, and the mounting seat connected to the sliding plate 601 can also move together with the sliding plate 601. A sliding rod 103 is installed on the machine frame 1, and the sliding plate 601 is slidably connected to the machine frame 1 through the sliding rod 103. The sliding rod 103 can increase the sliding stability between the sliding plate 601 and the machine frame 1.

[0038] The remaining features and working principles of this embodiment are the same as those of Embodiment 1.

[0039] Embodiment 3

[0040] An embodiment 3 of a hemming press for back ribs. On the basis of Embodiment 1 or Embodiment 2, the differences from Embodiment 1 and Embodiment 2 are as Figure 4 shown. A supporting member 104 is arranged at the discharge end of the hemming die 2 on the machine frame 1. The supporting member 104 is located below the clamping jaw 503, and the top surface of the supporting member 104 is flush with the bottom surface of the discharge port of the hemming die 2. After the back rib passes through the discharge port of the hemming die 2 and is in the state of being clamped by the grasping mechanism 5, the bottom surface of the back rib contacts the top surface of the supporting member 104, so that the back rib can be supported and prevented from being bent after passing through the hemming die 2. For the part of the back rib that has not entered the hemming die 2, it can be manually supported or provided with a supporting table.

[0041] The remaining features and working principles of this embodiment are the same as those of Embodiment 1 or 2.

[0042] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A back flanging edge pressing machine, characterized in that: The invention comprises a frame (1), a side pressing die (2) both mounted on the frame (1), a side pressing device located on one side or two opposite sides of the side pressing die (2), and a pulling device located at the discharge end of the side pressing die (2); the side pressing die (2) is provided with a through hole (201) corresponding to the strip hole of the back rib; the side pressing device comprises a side pressing mechanism (3) and a first driving member (4) for driving the side pressing mechanism (3) to move in the direction of the through hole (201); the side pressing mechanism (3) comprises a side pressing plate (301) and a second driving member (302) for driving the side pressing plate (301) to rotate in the direction of the bottom of the side pressing die (2); the pulling device comprises a gripping mechanism (5) for clamping the back rib and a driving mechanism (6) for driving the gripping mechanism (5) to move in a direction away from the side pressing die (2).

2. A back flanging edge pressing machine according to claim 1, characterized in that: The through holes (201) are provided on both sides of the edge pressing die (2); two edge pressing devices are provided, respectively located on both sides of the edge pressing die (2); the edge pressing mechanism (3) also includes a bottom plate (303) slidably connected to the frame (1), the second driving member (302) is fixedly connected to the bottom plate (303), the output end of the second driving member (302) is connected to the edge pressing plate (301), and the end of the edge pressing plate (301) away from the second driving member (302) is rotatably connected to the bottom plate (303).

3. A back flanging edge pressing machine according to claim 2, characterized in that: A first connecting ear (3011) is provided on the top surface of the edge clamping plate (301), and a second connecting ear (3012) is provided on the bottom surface of the edge clamping plate (301) at an end away from the first connecting ear (3011); the first connecting ear (3011) is rotatably connected to the output end of the second driving member (302), and the second connecting ear (3012) is rotatably connected to the bottom plate (303).

4. The back flanging edge pressing machine according to claim 2, characterized in that: The frame (1) is provided with a slide rail (101), and the base plate (303) is installed on the slide rail (101).

5. The back edge flanging machine according to claim 4, characterized in that: The frame (1) is provided with an in-place detection sensor (102); the in-place detection sensor (102) is used to detect the moving distance of the bottom plate (303).

6. The back edge flanging machine according to claim 1, characterized in that: A positioning device (7) is also installed on the frame (1); a hollow portion (202) is provided on the top of the edge pressing die (2); the positioning device (7) comprises a pressing head (701) for extending into the hollow portion (202) and a third driving member (702) for driving the pressing head (701) to move; the positioning device (7) is located on the top of the edge pressing die (2).

7. A back flanging machine according to any one of claims 1 to 6, characterized in that: The gripping mechanism (5) comprises a connecting seat (501) connected to the driving mechanism (6), a limiting arm (502) connected to the connecting seat (501), a clamping claw (503) rotatably connected to the limiting arm (502), and a fourth driving member (504) driving the clamping claw (503) to rotate; the limiting arm (502) is provided with a supporting portion (5021) for extending into the back rib, and the end of the clamping claw (503) rotates in the direction of the supporting portion (5021) under the action of the fourth driving member (504).

8. The back edge flanging machine according to claim 7, characterized in that: The driving mechanism (6) comprises a slide plate (601) slidably connected to the frame (1), a motor (602) mounted on the slide plate (601), and a gear (603) mounted on an output shaft of the motor (602); a rack (105) meshing with the gear (603) is mounted on the frame (1); and the connecting seat (501) is connected to the slide plate (601).

9. The back edge flanging machine according to claim 8, characterized in that: A sliding rod (103) is mounted on the frame (1), and the sliding plate (601) is slidably connected to the frame (1) via the sliding rod (103).

10. The back flanging edge pressing machine according to claim 7, characterized in that: A supporting member (104) is provided on the frame (1) at the discharge end of the edge pressing die (2), the supporting member (104) being located below the clamping jaw (503), and the top surface of the supporting member (104) being flush with the bottom surface of the discharge port of the edge pressing die (2).

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