Bending device of fan impeller blade forming machine

Abstract

The utility model discloses a bending device of a fan impeller blade forming machine, belongs to the technical field of fan manufacturing, and solves the problems that after a metal belt is bent in the width direction through a concave-convex rolling wheel in the existing device, the metal belt is bent to a certain degree in the length direction, and the bending efficiency is low. The metal strip bending device comprises a bottom plate, a conveying assembly is arranged on one side of the top face of the bottom plate, a stripping assembly and a bending assembly are sequentially arranged on the right side of the conveying assembly, a metal sheet can be accurately clamped in a clamping groove through the arrangement of the conveying assembly and the stripping assembly, and the bending efficiency is improved. An arc-shaped pressing plate and an arc-shaped groove are matched with each other to bend the metal sheet in the width direction, and then a second electric telescopic rod drives a stripper plate to push the metal sheet in the arc-shaped groove to a second conveying belt, so that the situation that the metal sheet is bent in the length direction when the metal sheet is bent is avoided; the purpose of preventing the metal sheets from being clamped during conveying is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan manufacturing, in particular to a bending device of a fan impeller blade forming machine. Background Art

[0002] Fans are mainly used to transport gases. When the fan is operating, the motor drives the impeller to rotate at high speed to generate kinetic energy, which squeezes and accelerates the gas, thereby allowing the gas to gain energy and generate airflow.

[0003] After searching, the application with patent application number CN202220342874.5 discloses a rolling forming device of a multi-impeller blade forming machine for a fire smoke exhaust fan, including a rolling forming bracket, characterized in that: a plurality of pairs of concave and convex rolling wheels are rotatably matched on the rolling forming bracket, the convex rolling wheel is on the top, and the concave rolling wheel is on the bottom, and the shape and size of each pair of concave and convex rolling wheels are adapted to each other, and the convex rolling wheel and the concave rolling wheel in each pair of concave and convex rolling wheels rotate in opposite directions, and from in to out, the curvature of each pair of concave and convex rolling wheels increases step by step from small to large, and the outer convex curvature of the drum-shaped convex rolling wheel in the last pair of concave and convex rolling wheels is equal to the curvature of the inner concave arc surface of the finished blade, and the inner concave curvature of the concave rolling wheel in the last pair of concave and convex rolling wheels is equal to the curvature of the outer convex arc surface of the finished blade; all the convex rolling wheels and the concave rolling wheels are rotatably matched on the rolling forming bracket via shafts and bearings, and are driven by a reduction motor via a sprocket chain;

[0004] Although the rolling forming device of the multi-impeller blade forming machine for fire smoke exhaust fan can, after pre-punching notches and through holes for bolts in the metal strip, first roll-form an arcuate surface in the width direction and then bend the ear plate to ensure the accuracy of the arcuate surface and avoid damage to the connection between the ear plate and the arcuate blade body due to post-punching of the arcuate surface, the rolling forming device of the multi-impeller blade forming machine for fire smoke exhaust fan will bend the metal strip in the width direction through the concave and convex rolling wheels, and the metal strip will also form a certain bend in the length direction. The bent metal strip is easily stuck in the gap between multiple pairs of concave and convex rolling wheels.

[0005] Therefore, we propose a bending device for a fan impeller blade forming machine. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a bending device for a fan impeller blade forming machine, which solves the problem that after the prior device bends the metal strip along the width direction through the concave and convex rolling wheels, the metal strip will also form a certain bend along the length direction, and the bent metal strip is easily stuck in the gap between multiple pairs of concave and convex rolling wheels.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a bending device of a fan impeller blade forming machine, comprising a bottom plate, a conveying assembly is arranged on one side of the top surface of the bottom plate, and a stripping assembly and a bending assembly are arranged in sequence on the right side of the conveying assembly;

[0008] The conveying assembly includes a first conveyor belt fixedly mounted on one side of the top surface of the bottom plate;

[0009] The stripping assembly includes a U-shaped guide plate arranged on the right side of the conveying assembly, and a stripping plate movable leftward and rightward is arranged below the U-shaped guide plate;

[0010] The bending assembly includes a die base fixedly mounted on the top surface of the base plate, an arc-shaped groove is provided on the top surface of the die base, an arc-shaped pressure plate is arranged above the arc-shaped groove, two limit plates symmetrically distributed on both sides of the arc-shaped groove are fixedly mounted on the top surface of the die base, and a clamping groove is provided on the adjacent side surfaces of the limit plate, and the clamping groove is flush with the U-shaped guide plate.

[0011] Preferably, a first electric telescopic rod is fixedly installed on the frame of the first conveyor belt, and the output end of the first electric telescopic rod passes through the frame of the first conveyor belt and a push plate is fixedly installed thereon, and the push plate is in contact with the surface of the first conveyor belt, wherein the push plate can be driven to move by the first electric telescopic rod, and then the position of the metal sheet transported on the first conveyor belt can be adjusted.

[0012] Preferably, a groove is provided in the middle of the top surface of the first conveyor belt, and the bottom surface of the groove is flush with the U-shaped guide plate. The widths of the groove and the U-shaped guide plate are the same as the width of the arc groove, thereby preventing the metal sheet from being offset during transportation. The metal belt is pushed into the inside of the groove by the push plate, and then the metal sheet inside the groove will be transported to the U-shaped guide plate, and then the metal sheet in the front will be pushed onto the mold base by the metal sheet at the rear, and then the two sides of the metal sheet will be stuck in the inside of the groove.

[0013] Preferably, a support plate is fixedly installed on the top surface of the base plate, the U-shaped guide plate is fixedly installed on the top of the support plate, a second electric telescopic rod is fixedly installed on the side wall of the support plate, and a stripping plate is fixedly installed on the output end of the second electric telescopic rod passing through the side wall of the support plate, the stripping plate is positioned opposite to the arc groove and has the same size as the arc groove, wherein the stripping plate is driven to move by the second electric telescopic rod, so that the metal sheet inside the arc groove can be pushed outward.

[0014] Preferably, a U-shaped plate is fixedly installed on the top surface of the base plate, a hydraulic cylinder is fixedly installed on the top surface of the U-shaped plate, an output end of the hydraulic cylinder passes through the top surface of the U-shaped plate and an arc-shaped pressure plate is fixedly installed, the size of the arc-shaped pressure plate is the same as the size of the arc-shaped groove, wherein the arc-shaped pressure plate is pushed downward by the hydraulic cylinder, and then the metal sheet stuck in the groove is pressed into the interior of the arc-shaped groove, and then the metal sheet is bent along the width direction.

[0015] Preferably, a second conveyor belt is fixedly installed on the right side of the press-bending assembly, wherein the second conveyor belt is used to transport the metal sheet inside the arc-shaped groove to the next process.

[0016] The utility model provides a bending device for a fan impeller blade forming machine. It has the following beneficial effects:

[0017] The bending device of the fan impeller blade forming machine can make the metal sheet accurately stuck in the inside of the slot through the arrangement of the transmission component and the stripping component, and bend the metal sheet along the width direction through the cooperation of the arc pressure plate and the arc slot, and then drive the stripping plate through the second electric telescopic rod to push the metal sheet inside the arc slot onto the second conveyor belt. The metal sheet is bent inside the arc slot, which avoids the situation that the metal sheet itself bends along the length direction when being bent, thereby achieving the purpose of preventing the metal sheet from being stuck during transportation, and solves the problem that after the existing device bends the metal belt along the width direction through the concave and convex rolling wheels, the metal belt also forms a certain bend along the length direction, and the bent metal belt is easily stuck in the gap between multiple pairs of concave and convex rolling wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the transmission component of the utility model;

[0020] Figure 3 This is a schematic diagram of the stripping assembly structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the bending component of the utility model.

[0022] In the figure: 1. bottom plate; 2. conveying assembly; 21. first conveyor belt; 22. groove; 23. first electric telescopic rod; 24. push plate; 3. stripping assembly; 31. support plate; 32. U-shaped guide plate; 33. second electric telescopic rod; 34. stripping plate; 4. bending assembly; 41. U-shaped plate; 42. hydraulic cylinder; 43. arc pressure plate; 44. die base; 45. arc groove; 46. limit plate; 47. slot; 5. second conveyor belt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] like Figure 1-4 As shown: it includes a bottom plate 1, a conveying assembly 2 is arranged on one side of the top surface of the bottom plate 1, a stripping assembly 3 and a bending assembly 4 are arranged in sequence on the right side of the conveying assembly 2, the conveying assembly 2 includes a first conveyor belt 21 fixedly installed on one side of the top surface of the bottom plate 1, the stripping assembly 3 includes a U-shaped guide plate 32 arranged on the right side of the conveying assembly 2, and a stripping plate 34 that can move left and right is arranged below the U-shaped guide plate 32, and the bending assembly 4 includes a die base 44 fixedly installed on the top surface of the bottom plate 1, the top surface of the die base 44 is provided with an arc groove 45, and an arc pressure plate 43 is arranged above the arc groove 45, and the top surface of the die base 44 is fixed Two limit plates 46 are installed symmetrically distributed on both sides of the arc groove 45, and adjacent sides of the limit plates 46 are provided with card slots 47, and the card slots 47 are flush with the U-shaped guide plate 32. A first electric telescopic rod 23 is fixedly installed on the frame of the first conveyor belt 21, and the output end of the first electric telescopic rod 23 passes through the frame of the first conveyor belt 21 and is fixedly installed with a push plate 24, and the push plate 24 is in contact with the surface of the first conveyor belt 21. A groove 22 is opened in the middle of the top surface of the first conveyor belt 21, and the bottom surface of the groove 22 is flush with the U-shaped guide plate 32. The widths of the groove 22 and the U-shaped guide plate 32 are both the same as the arc groove 4 5 has the same width, a support plate 31 is fixedly installed on the top surface of the bottom plate 1, a U-shaped guide plate 32 is fixedly installed on the top of the support plate 31, a second electric telescopic rod 33 is fixedly installed on the side wall of the support plate 31, and the output end of the second electric telescopic rod 33 passes through the side wall of the support plate 31 and is fixedly installed with a stripper plate 34, the stripper plate 34 and the arc groove 45 are opposite in position and have the same size, a U-shaped plate 41 is fixedly installed on the top surface of the bottom plate 1, a hydraulic cylinder 42 is fixedly installed on the top surface of the U-shaped plate 41, and the output end of the hydraulic cylinder 42 passes through the top surface of the U-shaped plate 41 and is fixedly installed with an arc pressure plate 43, and the arc The size of the pressing plate 43 is the same as that of the arc groove 45. The metal sheet can be accurately stuck in the inside of the slot 47 by setting the conveying component 2 and the stripping component 3, and the metal sheet is bent in the width direction by the cooperation between the arc pressing plate 43 and the arc groove 45. Then, the stripping plate 34 is driven by the second electric telescopic rod 33 to push the metal sheet in the arc groove 45 onto the second conveyor belt 5. The metal sheet is bent in the arc groove 45, which avoids the situation that the metal sheet itself bends in the length direction when being bent, thereby achieving the purpose of preventing the metal sheet from being stuck during transportation.

[0026] Embodiment 2:

[0027] like Figure 1 As shown, a second conveyor belt 5 is fixedly installed on the right side of the bending assembly 4, and the second conveyor belt 5 is used to transport the metal sheet inside the arc groove 45 to the next process.

[0028] The working principle and use process of the utility model: when the bending device of the fan impeller blade forming machine is used, the cut metal sheet is transported to the top of the U-shaped guide plate 32 through the first conveyor belt 21, and the first electric telescopic rod 23 is started to push the push plate 24 to move during the conveying process, and then the metal sheet on the first conveyor belt 21 is pushed to the inside of the groove 22, and the metal sheet transported to the U-shaped guide plate 32 will be pushed to the right by the metal sheet behind it, and then its two sides are stuck in the inside of the card groove 47, and then the hydraulic cylinder 42 is started to push the arc pressure plate 43 downward, and then the metal sheet is pressed into the inside of the arc groove 45. With the cooperation of the arc pressure plate 43 and the arc groove 45, the metal sheet can be pressed into an arc, and then the second electric telescopic rod 33 is started to drive the stripping plate 34 to move, and then the metal sheet inside the arc groove 45 is pushed onto the second conveyor belt 5, and then the bent metal sheet is transported to the next process through the second conveyor belt 5.

[0029] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bending device for a fan impeller blade forming machine, characterized in that: It comprises a bottom plate (1), a conveying assembly (2) is arranged on one side of the top surface of the bottom plate (1), and a stripping assembly (3) and a bending assembly (4) are arranged in sequence on the right side of the conveying assembly (2); The conveying assembly (2) comprises a first conveying belt (21) fixedly mounted on one side of the top surface of the bottom plate (1); The stripping assembly (3) comprises a U-shaped guide plate (32) arranged on the right side of the conveying assembly (2), and a stripping plate (34) movable leftward and rightward is arranged below the U-shaped guide plate (32); The bending assembly (4) comprises a die base (44) fixedly mounted on the top surface of the base plate (1); an arc-shaped groove (45) is provided on the top surface of the die base (44); an arc-shaped pressing plate (43) is arranged above the arc-shaped groove (45); two limit plates (46) symmetrically distributed on both sides of the arc-shaped groove (45) are fixedly mounted on the top surface of the die base (44); adjacent side surfaces of the limit plates (46) are provided with a clamping groove (47); the clamping groove (47) is flush with the U-shaped guide plate (32).

2. The bending device of a fan impeller blade forming machine according to claim 1, characterized in that: A first electric telescopic rod (23) is fixedly mounted on the frame of the first conveyor belt (21); an output end of the first electric telescopic rod (23) passes through the frame of the first conveyor belt (21) and a push plate (24) is fixedly mounted thereon; the push plate (24) is in contact with the surface of the first conveyor belt (21).

3. The bending device of a fan impeller blade forming machine according to claim 1, characterized in that: A groove (22) is provided in the middle of the top surface of the first conveyor belt (21), the bottom surface of the groove (22) is flush with the U-shaped guide plate (32), and the widths of the groove (22) and the U-shaped guide plate (32) are the same as the width of the arc groove (45).

4. The bending device of a fan impeller blade forming machine according to claim 1, characterized in that: A support plate (31) is fixedly mounted on the top surface of the bottom plate (1), the U-shaped guide plate (32) is fixedly mounted on the top end of the support plate (31), a second electric telescopic rod (33) is fixedly mounted on the side wall of the support plate (31), an output end of the second electric telescopic rod (33) passes through the side wall of the support plate (31) and a stripping plate (34) is fixedly mounted thereon, the stripping plate (34) and the arc-shaped groove (45) being opposite in position and having the same size.

5. The bending device of a fan impeller blade forming machine according to claim 1, characterized in that: A U-shaped plate (41) is fixedly mounted on the top surface of the bottom plate (1), a hydraulic cylinder (42) is fixedly mounted on the top surface of the U-shaped plate (41), an output end of the hydraulic cylinder (42) passes through the top surface of the U-shaped plate (41) and a curved pressure plate (43) is fixedly mounted thereon, and the size of the curved pressure plate (43) is the same as the size of the curved groove (45).

6. The bending device of a fan impeller blade forming machine according to claim 1, characterized in that: A second conveyor belt (5) is fixedly mounted on the right side of the bending assembly (4).

Images