A round corner bending machine

Abstract

This utility model provides a rounded corner bending machine, including a frame, a profile clamping assembly, and a swing arm device. The profile clamping assembly is fixedly installed on the upper end face of the frame. The swing arm device includes a bending die, a rotary cylinder, a top swing arm, a bottom swing arm, rollers, and a cylinder. The metal profile to be bent is manually fed through the profile clamping assembly and into the swing arm device. The profile clamping assembly clamps the metal profile, preventing it from being conveyed forward. The cylinder then drives the rollers to press the metal profile against the bending die. Next, the rotary cylinder drives the bending die to swing horizontally at a preset angle, automatically bending the metal profile. Because the bending action is automatically performed by the rotary cylinder at a preset rotation angle, the bending quality of the metal profile can be guaranteed. Furthermore, because manual feeding is used, the entire equipment structure is more compact and simpler, thus reducing its manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of metal profile bending technology, specifically to a rounded corner bending machine. Background Technology

[0002] In the light box, advertising panel, lighting and furniture industries, rounded metal profiles are often needed. The rounding of metal profiles requires a rounded corner bending machine, which is used to form the rounded corners of the metal profiles.

[0003] In existing technologies, bending of metal profiles includes manual bending using simple bending dies and rounding bending using automated corner bending machines. A corner bending machine typically includes an automatic feeding device, an automatic pressing device, and an automatic bending device. The metal profile is conveyed forward by the automatic feeding device. After reaching the bending position, the automatic pressing device presses the metal profile, and the automatic bending device rounds the corners. While these existing corner bending machines can automatically bend metal profiles, their manufacturing cost is high. For small processing enterprises with limited production capacity, purchasing automated corner bending equipment is a significant financial burden. However, the existing manual bending method has low processing efficiency and inconsistent processing quality.

[0004] Therefore, it is particularly important to provide a low-cost corner bending machine that can guarantee processing quality. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a low-cost corner bending machine that can guarantee processing quality.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This application provides a corner bending machine, including a frame, and further comprising:

[0008] A profile clamping assembly is fixedly installed on the upper end face of the frame, and the profile clamping assembly is used to clamp the metal profile;

[0009] The swing arm device includes a bending die, a rotary cylinder, a top swing arm, a bottom swing arm, rollers, and a cylinder. The bending die is rotatably mounted on the upper end face of the frame. The rotary cylinder is fixedly connected to the bottom end of the bending die and is used to drive the bending die to rotate horizontally. One end of the bottom swing arm is fixedly mounted on the bottom end of the bending die, and one end of the top swing arm is fixedly mounted on the upper end of the bending die. The upper and lower ends of the rollers are slidably mounted on the other ends of the top and bottom swing arms, respectively. The rollers and the top and bottom swing arms form a sliding connection that allows them to move closer to or away from the bending die. The cylinders are connected to the rollers.

[0010] Furthermore, the profile clamping assembly includes a pressure plate, a pressure cylinder seat, a pressure cylinder, a profile mold fixing seat, and a profile mold. The pressure cylinder seat and the profile mold fixing seat are fixedly installed on the upper end face of the frame. The profile mold is fixedly installed on the profile mold fixing seat on one side adjacent to the pressure cylinder seat. The pressure plate is horizontally telescopically slidably installed on the pressure cylinder seat on one side adjacent to the profile mold. The pressure cylinder is fixedly installed on the other side of the pressure cylinder seat opposite to the pressure plate. The pressure cylinder is connected to the pressure plate and is used to drive the pressure plate to move closer to or away from the profile mold.

[0011] Furthermore, the profile pressing assembly also includes a pair of guide posts and a pair of linear bearings. One end of the pair of guide posts is fixedly connected to the top and bottom ends of the pressing plate, respectively. The other end of the pair of guide posts passes horizontally through the pressing cylinder seat, and the pair of guide posts are slidably mounted on the pressing cylinder seat through the pair of linear bearings.

[0012] Furthermore, the top swing arm and the bottom swing arm are respectively provided with elongated through holes parallel to the sliding direction of the roller, and the upper and lower ends of the roller are respectively slidably installed in the elongated through holes.

[0013] Furthermore, the swing arm device also includes a "U"-shaped connecting frame that rotates 90° clockwise horizontally. The roller is vertically fixed on the connecting frame. The upper and lower ends of the roller pass through the connecting frame and are slidably connected to the through holes on the top swing arm and the bottom swing arm, respectively. The cylinder is fixedly connected to one side of the connecting frame.

[0014] Beneficial effects:

[0015] In this embodiment, the aforementioned rounded corner bending machine is used. The metal profile to be bent is manually fed through the profile clamping assembly and into the swing arm device. Once the metal profile reaches the desired bending position within the swing arm device, the profile clamping assembly clamps it, preventing further forward transport. Subsequently, a cylinder drives rollers to press the metal profile onto the bending die. Then, a rotary cylinder drives the bending die to swing horizontally at a preset angle, automatically bending the metal profile. Because the bending action is automatically performed by the rotary cylinder at a preset rotation angle, the bending quality of the metal profile is guaranteed. Furthermore, due to manual feeding, the entire equipment structure is more compact and simpler, thus reducing manufacturing costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the rounded corner bending machine in the embodiments of this application.

[0017] Figure 2 This is a three-dimensional structural diagram of the profile clamping assembly in the embodiments of this application.

[0018] Figure 3 This is a three-dimensional structural diagram of the swing arm device in the embodiments of this application.

[0019] Figure 4 This is an exploded view of the installation and assembly structure of the swing arm device in the embodiments of this application.

[0020] In the picture:

[0021] 100-Fillet Corner Bending Machine;

[0022] 10-Rack;

[0023] 20- Profile clamping assembly; 21- Profile mold fixing seat; 22- Pressure cylinder seat; 23- Pressure plate; 24- Profile mold; 25- Pressure cylinder; 26- Guide column; 27- Linear bearing;

[0024] 30-Swing arm device; 31-Bending mold; 32-Roller; 33-Rotary cylinder; 34-Top swing arm; 35-Bottom swing arm; 36-Cylinder; 37-Connecting frame; 38-Long strip through hole. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] See appendix Figure 1As shown, this embodiment provides a rounded corner bending machine 100, including a frame 10, a profile clamping assembly 20, and a swing arm device 30. The profile clamping assembly 20 and the swing arm device 30 are installed on the upper end face of the frame 10, and are arranged sequentially according to the conveying direction of the metal profile. For ease of description, along the conveying direction of the metal profile, the end of the metal profile input on the frame 10 is simply referred to as the input end, and the end of the metal profile output on the frame 10 is simply referred to as the output end. Therefore, the profile clamping assembly 20 is installed near the input end of the frame 10, and the swing arm device 30 is installed near the output end of the frame 10.

[0027] See attached document Figure 1 and attached Figure 2 As shown, in this embodiment, the profile pressing assembly 20 includes a pressing plate 23, a pressing cylinder seat 22, a pressing cylinder 25, a profile mold fixing seat 21, and a profile mold 24. The pressing cylinder seat 22 and the profile mold fixing seat 21 are fixedly installed on the upper end face of the frame 10. For example, the pressing cylinder seat 22 is fixedly installed on the front side of the frame 10, and the profile mold fixing seat 21 is fixedly installed on the rear side of the frame 10. The pressing cylinder seat 22 and the profile mold fixing seat 21 are arranged in a front-to-back relative manner. The profile mold 24 is fixedly installed on the profile mold fixing base 21 on one side adjacent to the pressure cylinder base 22. The pressure plate 23 is horizontally telescopically slidably installed on the pressure cylinder base 22 on one side adjacent to the profile mold 24. The pressure cylinder 25 is fixedly installed on the other side of the pressure cylinder base 22 opposite to the pressure plate 23. The pressure cylinder 25 is connected to the pressure plate 23 and is used to drive the pressure plate 23 to move closer to or away from the profile mold 24. That is, the pressure plate 23 is moved back and forth by the telescopic movement of the piston rod of the pressure cylinder 25. By using the pressure plate 23 and the profile mold 24 arranged opposite to each other, when it is necessary to press the metal profile, the pressure plate 23 can quickly press the metal profile onto the profile mold 24 under the action of the pressure cylinder 25. The whole structure is simple, and because the pressure plate 23 has a large area, it can stably press the metal profile.

[0028] See attached document Figure 2As shown, in order to improve the stability of the pressing plate 23 during movement, the profile pressing assembly 20 also includes a pair of guide columns 26 and a pair of linear bearings 27. One end of the pair of guide columns 26 is fixedly connected to the top and bottom ends of the outer side of the pressing plate 23, respectively. The other end of the pair of guide columns 26 passes horizontally through the pressing cylinder seat 22 and extends outward. The pair of guide columns 26 are slidably mounted on the pressing cylinder seat 22 through the pair of linear bearings 27. When the pressing cylinder 25 pushes the pressing plate 23 to move horizontally, the pressing plate 23 synchronously drives the pair of guide columns 26 to move back and forth synchronously along the linear bearings 27. The cooperation between the guide columns 26 and the linear bearings 27 can improve the stability and smoothness of the pressing plate 23 during the telescopic movement.

[0029] See attached document Figure 1 Appendix Figure 3 and attached Figure 4 As shown, in this embodiment, the swing arm device 30 includes a bending die 31, a rotary cylinder 33, a top swing arm 34, a bottom swing arm 35, a roller 32, and a cylinder 36. The bending die 31 is rotatably mounted on the upper end face of the frame 10. The rotary cylinder 33 is fixedly connected to the bottom end of the bending die 31. The rotary cylinder 33 is used to drive the bending die 31 to rotate horizontally. The rotary cylinder 33 is located inside the frame 10, which can make full use of the internal space of the frame 10. At the same time, hiding the rotary cylinder 33 inside the frame 10 also helps to improve the aesthetics of the entire rounded corner bending machine 100. One end of the bottom swing arm 35 is fixedly installed at the bottom end of the bending die 31, and one end of the top swing arm 34 is fixedly installed at the top end of the bending die 31. The upper and lower ends of the roller 32 are respectively slidably installed at the other ends of the top swing arm 34 and the bottom swing arm 35. That is, the roller 32 is arranged opposite to the bending die 31, and the roller 32 forms a sliding connection with the top swing arm 34 and the bottom swing arm 35 that can move closer to or away from the bending die 31. The cylinder 36 is connected to the roller 32 and is used to drive the roller 32 to move closer to or away from one side of the bending die 31.

[0030] Continue to refer to the appendix Figure 1 Appendix Figure 3 and attached Figure 4 As shown, in some embodiments, the top swing arm 34 and the bottom swing arm 35 are respectively provided with elongated through holes 38 parallel to the sliding direction of the roller 32, and the upper and lower ends of the roller 32 are respectively slidably installed in the elongated through holes 38. By providing elongated through holes 38 with simple structure on the top swing arm 34 and the bottom swing arm 35, the sliding requirements of the roller 32 can be met, which helps to simplify the structure of the entire swing arm device 30.

[0031] See attached document Figure 3 and attached Figure 4As shown, the swing arm device 30 also includes a "U"-shaped connecting frame 37 that rotates 90° clockwise horizontally. The roller 32 is vertically fixed on the connecting frame 37. The upper and lower ends of the roller 32 pass through the connecting frame 37 and are slidably connected to the through holes on the top swing arm 34 and the bottom swing arm 35, respectively. The cylinder 36 is fixedly connected to one side of the connecting frame 37. The connection between the cylinder 36 and the roller 32 can be easily realized through the connecting frame 37.

[0032] See attached document Figure 1 As shown, in order to better understand the rounded corner bending machine 100 in this embodiment, its working principle will be briefly explained below:

[0033] When bending the rounded corners of metal profiles, the manual operator passes the metal profile to be bent through the profile clamping assembly 20 and into the swing arm device 30. After the metal profile reaches the swing arm device 30 at the position where it needs to be bent, the profile clamping assembly 20 presses the metal profile, preventing it from being conveyed forward. Then, the cylinder drives the roller 32 to press the metal profile onto the bending die 31. Next, the rotary cylinder 33 drives the bending die 31 to swing and rotate horizontally at a preset angle, automatically achieving the bending of the metal profile. Since the bending action of the metal profile is automatically performed by the rotary cylinder 33 at a preset rotation angle, the bending quality of the metal profile can be guaranteed. At the same time, because the material is fed manually, the entire equipment structure is more compact and simpler, thus reducing its manufacturing cost.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A round bending machine comprising a frame, characterized in that, Also includes: A profile clamping assembly is fixedly installed on the upper end face of the frame, and the profile clamping assembly is used to clamp the metal profile; The swing arm device includes a bending die, a rotary cylinder, a top swing arm, a bottom swing arm, rollers, and a cylinder. The bending die is rotatably mounted on the upper end face of the frame. The rotary cylinder is fixedly connected to the bottom end of the bending die and is used to drive the bending die to rotate horizontally. One end of the bottom swing arm is fixedly mounted on the bottom end of the bending die, and one end of the top swing arm is fixedly mounted on the upper end of the bending die. The upper and lower ends of the rollers are slidably mounted on the other ends of the top and bottom swing arms, respectively. The rollers and the top and bottom swing arms form a sliding connection that allows them to move closer to or away from the bending die. The cylinders are connected to the rollers.

2. A fillet bending machine according to claim 1, characterised in that, The profile pressing assembly includes a pressing plate, a pressing cylinder seat, a pressing cylinder, a profile mold fixing seat, and a profile mold. The pressing cylinder seat and the profile mold fixing seat are fixedly installed on the upper end face of the frame. The profile mold is fixedly installed on the profile mold fixing seat on one side adjacent to the pressing cylinder seat. The pressing plate is horizontally telescopically slidably installed on the pressing cylinder seat on one side adjacent to the profile mold. The pressing cylinder is fixedly installed on the other side of the pressing cylinder seat opposite to the pressing plate. The pressing cylinder is connected to the pressing plate and is used to drive the pressing plate to move closer to or away from the profile mold.

3. A fillet bending machine according to claim 2, wherein The profile pressing assembly also includes a pair of guide posts and a pair of linear bearings. One end of the pair of guide posts is fixedly connected to the top and bottom of the pressing plate, respectively. The other end of the pair of guide posts passes horizontally through the pressing cylinder seat, and the pair of guide posts are slidably mounted on the pressing cylinder seat through the pair of linear bearings.

4. A fillet bending machine according to claim 1, wherein The top and bottom swing arms are each provided with elongated through holes parallel to the sliding direction of the roller, and the upper and lower ends of the roller are slidably installed in the elongated through holes.

5. A fillet bender as claimed in claim 4 wherein, The swing arm device also includes a "U"-shaped connecting frame that rotates 90° clockwise horizontally. The roller is vertically fixed on the connecting frame. The upper and lower ends of the roller pass through the connecting frame and are slidably connected to the through holes on the top swing arm and the bottom swing arm, respectively. The cylinder is fixedly connected to one side of the connecting frame.

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