A hydraulic bending machine for producing air conditioning valve frames

Abstract

The present invention discloses a hydraulic bending machine for producing air-conditioning valve frames, which belongs to the technical field of air-conditioning valve production equipment, and includes a conveying frame, a bending mechanism, a pressing mechanism, an auxiliary plate mechanism, a supporting rod and a control system. The front side of the conveying frame is rotatably connected with the bending mechanism, the pressing mechanism is vertically slidably connected to the front end of the conveying frame, the rear side of the pressing mechanism is provided with a supporting rod, the supporting rod is vertically slidably connected to the conveying frame, the auxiliary plate mechanism is slidably connected in the bending mechanism, and the control system is arranged on one side of the conveying frame. In the process of bending the stainless steel plate of the present invention, the auxiliary plate mechanism can slide out of the bending mechanism to increase the supporting force of the bending mechanism, prevent the bent stainless steel plate from being deformed during the flipping process, and improve the product quality of the air-conditioning valve frame. The auxiliary plate mechanism can help the stainless steel plate flip, which can effectively improve the production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of air-conditioning valve production equipment, and in particular relates to a hydraulic bending machine for producing an air-conditioning valve frame. Background Art

[0002] Central air conditioning is an air conditioning system that regulates the temperature and humidity of multiple rooms or an entire building through a centralized system. The duct system is used to deliver cooled or heated air from the air handling unit to each room. The ducts are usually hidden in the walls, ceilings or floors to distribute the air efficiently to different areas. The air conditioning valve plays the role of controlling the flow of cold or warm air.

[0003] The production of valve frames in air-conditioning valves is the key. The cut stainless steel plates need to be bent into rectangles or other shapes that conform to the ventilation ducts, and then connected to the ventilation ducts by bolts. Usually rectangular ventilation ducts are easy to install. Rectangular ducts are mostly used nowadays, so rectangular air-conditioning valve frames are mostly used. When producing rectangular valve frames, the stainless steel plates need to be bent 90 degrees three times, and then the stainless steel plates are welded into rectangular valve frames. Hydraulic bending machines are usually used for bending.

[0004] After the traditional bending machine is bent, it is necessary to ensure that the bent stainless steel plate is turned in the direction of the bending machine when it continues to bend, so that the bending machine can normally bend the stainless steel plate three times at 90 degrees to ensure that the semi-finished rectangular valve frame will not be deformed after bending. As the number of bends increases, the weight of the bent part becomes heavier and the length becomes longer. It is difficult to completely turn the bent part over by the bending machine alone, so manual assistance is required during the bending process, which will reduce production efficiency and increase the workload of operators. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a hydraulic bending machine for the production of air-conditioning valve frames. In the process of bending the stainless steel plate, the auxiliary plate mechanism of the present invention can slide out of the bending mechanism to increase the supporting force of the bending mechanism, prevent the bent stainless steel plate from deforming during the flipping process, thereby improving the product quality of the air-conditioning valve frame, and the auxiliary plate mechanism can help the stainless steel plate to flip, which can effectively improve production efficiency.

[0006] The technical solution adopted to solve the above technical problems is: a hydraulic bending machine for producing air-conditioning valve frames, comprising a conveying frame, a bending mechanism, a pressing mechanism, an auxiliary plate mechanism, a supporting rod and a control system, wherein the front side of the conveying frame is rotatably connected with the bending mechanism, the pressing mechanism is vertically slidably connected to the front end of the conveying frame, the rear side of the pressing mechanism is provided with a supporting rod, the supporting rod is vertically slidably connected to the conveying frame, the auxiliary plate mechanism is slidably connected in the bending mechanism, and the control system is arranged on one side of the conveying frame;

[0007] A supporting plate is fixedly connected to the front side of the bending mechanism, and the auxiliary plate mechanism is slidably connected in the supporting plate;

[0008] The control system can drive the bending mechanism to rotate, and the rotation of the bending mechanism can drive the auxiliary plate mechanism to slide.

[0009] By means of the above technical scheme, the cut stainless steel plate can be conveyed toward the pressing mechanism through the conveying rack, and the stainless steel plate enters the bending mechanism through the pressing mechanism. After the length of the stainless steel plate to be bent enters the bending mechanism, the conveying rack stops conveying, and the pressing mechanism presses down to fix the stainless steel plate. At this time, the bending mechanism can be started, and the bending mechanism rotates upward, so that the stainless steel plate completes a 90-degree bend. The supporting plate on the bending mechanism can help the stainless steel plate flip upward, but the supporting plate on the traditional bending mechanism cannot be designed to be too long. If it is designed to be too long, the operator will be too far away from the bending mechanism, which is inconvenient for the operator to operate. The shorter supporting plate makes the supporting plate's supporting capacity insufficient, which will cause the stainless steel plate to be deformed under the influence of gravity during the flipping process. When the bending mechanism rotates upward, the bending mechanism can drive the auxiliary plate mechanism to slide in the supporting plate, thereby extending out of the supporting plate, lengthening the supporting plate, improving the supporting capacity of the supporting plate, preventing the bent stainless steel plate from deforming, and effectively ensuring the product quality of the air-conditioning valve frame.

[0010] Furthermore, the bending mechanism also includes a driving gear, a transmission chain and a transmission wheel. The driving gear is symmetrically arranged on the support plate. The driving gear is rotatably connected to the front side of the support plate. The transmission wheel is symmetrically rotatably connected to the bending mechanism. The driving gear and the transmission wheel are connected through a transmission chain.

[0011] Through the above technical solution, since the driving gears are symmetrically arranged on the support plate, the driving gears are rotatably connected to the front side of the support plate, and the transmission wheels are symmetrically rotatably connected to the bending mechanism, the driving gear and the transmission wheel are connected through a transmission chain, so that the rotation of the transmission wheel can drive the driving gear to rotate.

[0012] Furthermore, a fixed gear is provided at the rotation connection between the bending mechanism and the conveying frame, the fixed gear is fixedly connected to the conveying frame, and the transmission wheel is meshed with the fixed gear.

[0013] Through the above technical solution, since the fixed gear is fixedly connected to the conveying frame, the transmission wheel is engaged with the fixed gear, so that during the flipping process of the bending mechanism, the transmission wheel rotates, thereby driving the driving gear to rotate.

[0014] Furthermore, the auxiliary plate mechanism includes a first rack, a movable plate and a torsion spring. The first rack is two groups symmetrically fixedly connected on both sides of the auxiliary plate mechanism. The movable plate is rotatably connected to the front side of the auxiliary plate mechanism. A torsion spring is provided at the connection between the movable plate and the auxiliary plate mechanism, and the driving gear is meshed with the first rack.

[0015] Through the above technical solution, since the first rack is symmetrically fixedly connected to the two sides of the auxiliary plate mechanism in two groups, the movable plate is rotatably connected to the front side of the auxiliary plate mechanism, a torsion spring is arranged at the connection between the movable plate and the auxiliary plate mechanism, and the driving gear is meshed with the first rack, so that during the flipping process of the bending mechanism, the driving gear rotates to drive the auxiliary plate mechanism to slide outward in the supporting plate, so that the auxiliary plate mechanism extends out of the supporting plate, so that the supporting plate is lengthened, the supporting capacity of the supporting plate is improved, and the deformation of the bent stainless steel plate is prevented, thereby effectively ensuring the product quality of the valve frame of the air-conditioning valve;

[0016] The torsion spring is set so that when the movable plate on the auxiliary plate mechanism is fully extended from the supporting plate, it will rotate towards the conveying frame, thereby providing additional supporting force for the stainless steel plate and further preventing the bent stainless steel plate from deforming;

[0017] When the stainless steel plate is bent for the third time, the bent stainless steel plate needs to be completely flipped to the direction of the conveyor frame so that the stainless steel plate after the three bends can form a complete rectangle and complete the bending manufacturing process of the air conditioning valve frame. However, the weight of the bent part is relatively large at this time, and it is difficult for the transmission support plate to completely flip the bent part of the stainless steel plate. Even if it is barely flipped, the bent part of the stainless steel plate will be deformed, affecting the quality of the air conditioning valve frame. Therefore, the traditional processing method requires the operator to assist in flipping;

[0018] When the auxiliary plate mechanism bends the stainless steel plate for the third time, after the movable plate on the auxiliary plate mechanism is fully extended out of the supporting plate, the movable plate flips toward the conveying frame. At the end of the third bending, the bending mechanism and the conveying frame are at 90 degrees. At this time, the force of the movable plate on the auxiliary plate mechanism rotating toward the conveying frame will push the bent stainless steel plate to fall toward the conveying frame, so that the stainless steel plate that has been bent three times forms a rectangle, completing the bending manufacturing process of the air conditioning valve frame without the need for operator assistance in flipping, effectively reducing the workload of operators and improving production efficiency.

[0019] After each bending is completed, when the bending mechanism is reset, the transmission wheel will rotate in the opposite direction, thereby causing the driving gear to rotate in the opposite direction, and then driving the auxiliary plate mechanism to slide into the supporting plate through the first rack. As the movable plate on the auxiliary plate mechanism slides into the supporting plate, it will gradually rotate until it is in the same horizontal plane as the auxiliary plate mechanism, thereby allowing the auxiliary plate mechanism to slide completely into the supporting plate, and then the auxiliary plate mechanism is reset.

[0020] Furthermore, the pressing mechanism includes a hydraulic jacking component and a second rack. The hydraulic jacking components are two groups symmetrically arranged on both sides of the pressing mechanism. The hydraulic jacking components are fixedly connected to both sides of the conveying frame. A slide groove is arranged on the rear side of the hydraulic jacking component. The second rack is slidably connected in the slide groove. The second rack is fixedly connected to the jacking rod on the hydraulic jacking component.

[0021] Through the above technical scheme, since the hydraulic jacking components are symmetrically arranged in two groups on both sides of the pressing mechanism, the hydraulic jacking components are fixedly connected to both sides of the conveying frame, a slide groove is arranged on the rear side of the hydraulic jacking components, and the second rack is slidably connected in the slide groove. The second rack is fixedly connected to the lifting rod on the hydraulic jacking component, so that the hydraulic jacking component can drive the pressing mechanism to slide vertically on the conveying frame. After the pressing mechanism is pressed down, it can press the stainless steel plate, and then fix the stainless steel plate, which is convenient for bending the stainless steel plate, and the second rack can be vertically lifted and lowered as the pressing mechanism slides vertically.

[0022] Furthermore, sliding rods are fixedly connected to both sides of the supporting rod, sliding rails are symmetrically fixedly connected to both sides of the conveying frame, the sliding rods are slidably connected to the sliding rails, and a third rack is fixedly connected to the front side of the sliding rods.

[0023] Through the above technical scheme, since sliding rods are fixedly connected on both sides of the supporting rod, sliding rails are symmetrically fixedly connected on both sides of the conveying frame, the sliding rods are slidably connected to the sliding rails, and the front side of the sliding rods is fixedly connected to the third rack, the supporting rod can slide vertically on the conveying frame, and the third rack can be vertically lifted and lowered as the supporting rod slides vertically.

[0024] Furthermore, driven gears are symmetrically rotatably connected on both sides of the conveying frame, and the driven gears are arranged between the second rack and the third rack.

[0025] Further, the second rack is meshed with the front side of the driven gear, and the third rack is meshed with the rear side of the driven gear.

[0026] Through the above technical solution, since the driven gears are symmetrically connected to the two sides of the conveying frame, the driven gears are arranged between the second rack and the third rack, the second rack is meshed with the front side of the driven gear, and the third rack is meshed with the rear side of the driven gear, so that when the hydraulic jacking component drives the pressing mechanism to slide vertically on the conveying frame, the second rack can drive the driven gear to rotate, and the rotation of the driven gear can drive the third rack to rise and fall vertically, so that the supporting rod can slide vertically on the conveying frame;

[0027] When the hydraulic lifting component drives the pressing mechanism to rise on the conveying frame, the second rack rises accordingly and then drives the driven gear to rotate forward. The driven gear rotates forward to drive the third rack to descend vertically, that is, drives the supporting rod to descend vertically on the conveying frame;

[0028] When the hydraulic lifting component drives the pressing mechanism to descend on the conveying frame, the second rack will descend accordingly and then drive the driven gear to rotate in the opposite direction. The driven gear can drive the third rack to rise vertically, that is, drive the supporting rod to rise vertically on the conveying frame.

[0029] Thereby, the hydraulic jacking component is lowered to press the stainless steel plate. When the stainless steel plate is fixed, the supporting rod can rise vertically on the conveying frame, thereby supporting the bent stainless steel plate flipped over from the bending mechanism direction, fully ensuring that the bent stainless steel plate will not be deformed.

[0030] The beneficial effects of the present invention are as follows:

[0031] (1) The support plate on the bending mechanism of the present invention can help the stainless steel plate to flip upward, but the support plate on the traditional bending mechanism cannot be designed to be too long. If it is designed to be too long, the operator will be too far away from the bending mechanism, which is inconvenient for the operator to operate. The shorter support plate makes the support plate's supporting capacity insufficient, which will cause the stainless steel plate to be deformed under the influence of gravity during the flipping process. When the bending mechanism rotates upward, the bending mechanism can drive the auxiliary plate mechanism to slide inside the support plate, thereby extending out of the support plate, making the support plate longer, improving the support plate's supporting capacity, preventing the bent stainless steel plate from being deformed, and effectively ensuring the product quality of the air conditioning valve frame;

[0032] (2) During the turning process of the bending mechanism in the present invention, the rotation of the driving gear can drive the auxiliary plate mechanism to slide outward in the support plate, so that the auxiliary plate mechanism extends out of the support plate, so that the support plate is lengthened, the supporting capacity of the support plate is improved, and the deformation of the bent stainless steel plate is prevented, thereby effectively ensuring the product quality of the valve frame of the air conditioner valve. The setting of the torsion spring makes the movable plate on the auxiliary plate mechanism rotate toward the conveying frame when it is fully extended from the support plate, thereby providing additional supporting force for the stainless steel plate, further preventing the deformation of the bent stainless steel plate;

[0033] (3) When the auxiliary plate mechanism of the present invention bends the stainless steel plate for the third time, after the movable plate on the auxiliary plate mechanism is fully extended out of the supporting plate, the movable plate flips toward the conveying frame. At the end of the third bending, the bending mechanism and the conveying frame are at 90 degrees. At this time, the force of the movable plate on the auxiliary plate mechanism rotating toward the conveying frame will push the bent stainless steel plate to fall toward the conveying frame, so that the stainless steel plate that has been bent three times forms a rectangle, completing the bending manufacturing process of the air conditioning valve frame, without the need for operator assistance in flipping, effectively reducing the workload of the operator and improving production efficiency;

[0034] (4) In the present invention, the pressing mechanism descends to press the stainless steel plate to fix the stainless steel plate, and the second rack descends accordingly, thereby driving the driven gear to rotate in the opposite direction. The reverse rotation of the driven gear can drive the third rack to rise vertically, that is, drive the supporting rod to rise vertically on the conveying frame, thereby supporting the bent stainless steel plate flipped over from the bending mechanism, and fully ensuring that the bent stainless steel plate will not be deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a hydraulic bending machine for producing air-conditioning valve frames of the present invention;

[0036] Figure 2 The invention discloses a hydraulic bending machine for producing air conditioner valve frames. Figure 1 A partial enlarged view of the middle A;

[0037] Figure 3 It is a structural schematic diagram of a bending mechanism of a hydraulic bending machine for producing an air-conditioning valve frame of the present invention;

[0038] Figure 4 It is a structural schematic diagram of an auxiliary plate mechanism of a hydraulic bending machine for producing an air-conditioning valve frame of the present invention;

[0039] Figure 5 The invention discloses a hydraulic bending machine for producing air conditioner valve frames. Figure 4 A partial enlarged view of point C in the middle;

[0040] Figure 6 It is a schematic diagram of the exploded structure of an auxiliary plate mechanism of a hydraulic bending machine for producing an air-conditioning valve frame of the present invention;

[0041] Figure 7 The invention discloses a hydraulic bending machine for producing air conditioner valve frames. Figure 1 A partial enlarged view of point B in the middle;

[0042] Figure 8 It is a structural schematic diagram of a material pressing mechanism of a hydraulic bending machine for producing an air-conditioning valve frame of the present invention;

[0043] Fig. 9 It is a structural schematic diagram of the cooperation between a material pressing mechanism and a supporting rod of a hydraulic bending machine for producing an air-conditioning valve frame of the present invention;

[0044] Fig.10 The middle is a schematic diagram of the structure of a conveying frame of a hydraulic bending machine for producing an air-conditioning valve frame of the present invention;

[0045] Fig.11 The figure is a schematic diagram of the structure of a finished valve produced by a hydraulic bending machine for producing a valve frame of an air-conditioning valve according to the present invention.

[0046] Figure numerals: 1. conveying rack; 2. bending mechanism; 3. pressing mechanism; 4. auxiliary plate mechanism; 5. supporting rod; 6. control system; 7. finished valve; 11. fixed gear; 12. driven gear; 13. slide rail; 21. supporting plate; 22. driving gear; 23. transmission chain; 24. transmission wheel; 31. hydraulic jacking component; 32. second rack; 41. movable plate; 42. first rack; 43. torsion spring; 51. third rack; 71. finished valve frame; 72. valve plate; 73. driving motor. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0049] like Figure 1-Figure 2 As shown, a hydraulic bending machine for producing air-conditioning valve frames comprises a conveying frame 1, a bending mechanism 2, a pressing mechanism 3, an auxiliary plate mechanism 4, a supporting rod 5 and a control system 6. The front side of the conveying frame 1 is rotatably connected with the bending mechanism 2, the pressing mechanism 3 is vertically slidably connected to the front end of the conveying frame 1, the pressing mechanism 3 is provided with a supporting rod 5 at the rear side of the pressing mechanism 3, the supporting rod 5 is vertically slidably connected to the conveying frame 1, the auxiliary plate mechanism 4 is slidably connected in the bending mechanism 2, and the control system 6 is provided on one side of the conveying frame 1;

[0050] A support plate 21 is fixedly connected to the front side of the bending mechanism 2, and the auxiliary plate mechanism 4 is slidably connected in the support plate 21;

[0051] The control system 6 can drive the bending mechanism 2 to rotate, and the rotation of the bending mechanism 2 can drive the auxiliary plate mechanism 4 to slide.

[0052] In this embodiment, the cut stainless steel plate can be transported to the direction of the pressing mechanism 3 through the conveying frame 1, and the stainless steel plate enters the bending mechanism 2 through the pressing mechanism 3. After the length of the stainless steel plate to be bent enters the bending mechanism 2, the conveying frame 1 stops conveying, and the pressing mechanism 3 presses down to fix the stainless steel plate. At this time, the bending mechanism 2 can be started, and the bending mechanism 2 rotates upward, so that the stainless steel plate completes a 90-degree bend. The supporting plate 21 on the bending mechanism 2 can help the stainless steel plate to flip upward, but the supporting plate 21 on the traditional bending mechanism 2 cannot be designed to be too long. If If the design is too long, the operator will be too far away from the bending mechanism 2, which is inconvenient for the operator to operate, and the shorter support plate 21 makes the support plate 21 insufficient in supporting capacity, which will cause the stainless steel plate to be deformed under the influence of gravity during the flipping process. When the bending mechanism 2 rotates upward, the bending mechanism 2 can drive the auxiliary plate mechanism 4 to slide in the support plate 21, thereby extending out of the support plate 21, lengthening the support plate 21, improving the supporting capacity of the support plate 21, preventing the bent stainless steel plate from being deformed, and effectively ensuring the product quality of the air-conditioning valve frame.

[0053] like Figure 2-Figure 6 As shown, the bending mechanism 2 further includes a driving gear 22, a transmission chain 23 and a transmission wheel 24. The driving gears 22 are symmetrically arranged on the supporting plate 21. The driving gears 22 are rotatably connected to the front side of the supporting plate 21. The transmission wheels 24 are symmetrically rotatably connected to the bending mechanism 2. The driving gears 22 and the transmission wheels 24 are connected through the transmission chain 23.

[0054] A fixed gear 11 is provided at the rotation connection between the bending mechanism 2 and the conveying frame 1. The fixed gear 11 is fixedly connected to the conveying frame 1, and the transmission wheel 24 is meshed with the fixed gear 11;

[0055] The auxiliary plate mechanism 4 includes a first rack 42, a movable plate 41 and a torsion spring 43. The first rack 42 is two groups symmetrically fixedly connected on both sides of the auxiliary plate mechanism 4. The movable plate 41 is rotatably connected to the front side of the auxiliary plate mechanism 4. A torsion spring 43 is provided at the connection between the movable plate 41 and the auxiliary plate mechanism 4. The driving gear 22 is meshed with the first rack 42.

[0056] In this embodiment, during the turning process of the bending mechanism 2, the driving gear 22 rotates to drive the auxiliary plate mechanism 4 to slide outward in the supporting plate 21, so that the auxiliary plate mechanism 4 extends out of the supporting plate 21, so that the supporting plate 21 is lengthened, the supporting capacity of the supporting plate 21 is improved, and the bent stainless steel plate is prevented from being deformed, thereby effectively ensuring the product quality of the air conditioning valve frame;

[0057] The torsion spring 43 is provided so that when the movable plate 41 on the auxiliary plate mechanism 4 is fully extended from the supporting plate 21, it will rotate toward the conveying frame 1, thereby providing additional supporting force for the stainless steel plate, further preventing the bent stainless steel plate from deforming;

[0058] When the stainless steel plate is bent for the third time, the bent stainless steel plate needs to be completely turned over to the direction of the conveyor frame 1 so that the stainless steel plate after the three bends can form a complete rectangle and complete the bending manufacturing process of the air conditioning valve frame. However, at this time, the bent part is not only heavy but also long, and it is difficult for the transmission support plate 21 to completely turn over the bent part of the stainless steel plate. Even if it is turned over reluctantly, the bent part of the stainless steel plate will be deformed, affecting the quality of the air conditioning valve frame. Therefore, the traditional processing method requires the operator to assist in turning;

[0059] When the auxiliary plate mechanism 4 bends the stainless steel plate for the third time, after the movable plate 41 on the auxiliary plate mechanism 4 is fully extended out of the supporting plate 21, the movable plate 41 flips toward the conveying frame 1. At the end of the third bending, the bending mechanism 2 and the conveying frame 1 are at 90 degrees. At this time, the force of the movable plate 41 on the auxiliary plate mechanism 4 rotating toward the conveying frame 1 will push the bent stainless steel plate to fall toward the conveying frame 1, so that the stainless steel plate that has been bent three times forms a rectangle, completing the bending manufacturing process of the air conditioning valve frame, without the need for operator assistance in flipping, effectively reducing the workload of operators and improving production efficiency;

[0060] After each bending is completed, when the bending mechanism 2 is reset, the transmission wheel 24 will rotate in the opposite direction, thereby causing the driving gear 22 to rotate in the opposite direction, and then driving the auxiliary plate mechanism 4 to slide into the supporting plate 21 through the first rack 42. When the movable plate 41 on the auxiliary plate mechanism 4 slides into the supporting plate 21 as the auxiliary plate mechanism 4 slides into the supporting plate 21, it will gradually rotate until it is in the same horizontal plane as the auxiliary plate mechanism 4, thereby allowing the auxiliary plate mechanism 4 to completely slide into the supporting plate 21, and then the auxiliary plate mechanism 4 is reset.

[0061] like Figure 7-Figure 10 As shown, the pressing mechanism 3 includes a hydraulic jacking component 31 and a second rack 32. The hydraulic jacking components 31 are symmetrically arranged on both sides of the pressing mechanism 3 in two groups. The hydraulic jacking components 31 are fixedly connected to both sides of the conveying frame 1. A slide groove is arranged at the rear side of the hydraulic jacking component 31. The second rack 32 is slidably connected in the slide groove. The second rack 32 is fixedly connected to the jacking rod on the hydraulic jacking component 31.

[0062] Slide rods are fixedly connected to both sides of the support rod 5, and slide rails 13 are symmetrically fixedly connected to both sides of the conveying frame 1. The slide rods are slidably connected to the slide rails 13, and the front side of the slide rods is fixedly connected to the third rack 51;

[0063] The conveying frame 1 is symmetrically rotatably connected to the driven gear 12 on both sides, and the driven gear 12 is arranged between the second rack 32 and the third rack 51;

[0064] The second rack 32 is meshed with the front side of the driven gear 12, and the third rack 51 is meshed with the rear side of the driven gear 12;

[0065] In this embodiment, when the hydraulic lifting component 31 drives the pressing mechanism 3 to slide vertically on the conveying frame 1, the second rack 32 can drive the driven gear 12 to rotate, and the rotation of the driven gear 12 can drive the third rack 51 to rise and fall vertically, so that the supporting rod 5 can slide vertically on the conveying frame 1;

[0066] When the hydraulic lifting component 31 drives the pressing mechanism 3 to rise on the conveying frame 1, the second rack 32 rises accordingly and then drives the driven gear 12 to rotate forwardly. The driven gear 12 rotates forwardly to drive the third rack 51 to descend vertically, that is, drives the supporting rod 5 to descend vertically on the conveying frame 1;

[0067] When the hydraulic lifting component 31 drives the pressing mechanism 3 to descend on the conveying frame 1, the second rack 32 descends accordingly and then drives the driven gear 12 to rotate in the opposite direction. The driven gear 12 rotates in the opposite direction to drive the third rack 51 to rise vertically, that is, drives the supporting rod 5 to rise vertically on the conveying frame 1;

[0068] Thereby, the hydraulic lifting component 31 is lowered, and the pressing mechanism 3 is lowered to press the stainless steel plate. When the stainless steel plate is fixed, the supporting rod 5 can rise vertically on the conveying frame 1, thereby supporting the bent stainless steel plate flipped over from the bending mechanism 2, fully ensuring that the bent stainless steel plate will not be deformed.

[0069] Working principle:

[0070] The complete finished valve 7 includes a finished valve frame 71, a valve plate 72 and a driving motor 73. The valve plate 72 is rotatably connected in the finished valve frame 71, and the driving motor 73 drives the valve plate 72 to rotate, thereby achieving the purpose of controlling the airflow. The production of the finished valve frame 71 requires the cut stainless steel plate to be bent three times to form a rectangular frame, and then welded to make the finished valve frame 71 a rectangle that conforms to the ventilation duct, thereby facilitating the installation of the finished valve 7. Therefore, one of the most important steps in the production of the valve frame is the bending process, and the quality of the valve frame has a significant impact on the overall quality of the valve.

[0071] After the bending starts, the cut stainless steel plate can be transported to the direction of the pressing mechanism 3 through the conveying frame 1, and the stainless steel plate enters the bending mechanism 2 through the pressing mechanism 3. After the length of the stainless steel plate to be bent enters the bending mechanism 2, the conveying frame 1 stops conveying, and the pressing mechanism 3 presses down to fix the stainless steel plate. At this time, the bending mechanism 2 can be started, and the bending mechanism 2 rotates upward, so that the stainless steel plate completes a 90-degree bend;

[0072] During the turning process of the bending mechanism 2, the driving gear 22 rotates to drive the auxiliary plate mechanism 4 to slide outward in the supporting plate 21, so that the auxiliary plate mechanism 4 extends out of the supporting plate 21, so that the supporting plate 21 is lengthened, the supporting capacity of the supporting plate 21 is improved, and the bent stainless steel plate is prevented from being deformed, thereby effectively ensuring the product quality of the air conditioning valve frame;

[0073] The torsion spring 43 is provided so that when the movable plate 41 on the auxiliary plate mechanism 4 is fully extended from the supporting plate 21, it will rotate toward the conveying frame 1, thereby providing additional supporting force for the stainless steel plate, further preventing the bent stainless steel plate from deforming;

[0074] After one bending is completed, the bending mechanism 2 rotates in the reverse direction to reset, and the transmission wheel 24 rotates in the reverse direction, thereby causing the driving gear 22 to rotate in the reverse direction, and then driving the auxiliary plate mechanism 4 to slide into the supporting plate 21 through the first rack 42. When the movable plate 41 on the auxiliary plate mechanism 4 slides into the supporting plate 21 with the auxiliary plate mechanism 4, it will gradually rotate until it is in the same horizontal plane with the auxiliary plate mechanism 4, so that the auxiliary plate mechanism 4 completely slides into the supporting plate 21, and then the auxiliary plate mechanism 4 is reset;

[0075] After bending on both sides, the bent stainless steel plate needs to be completely turned over to the direction of the conveyor frame 1 so that the stainless steel plate after three bends can form a complete rectangle and complete the bending manufacturing process of the air conditioning valve frame. However, at this time, the bent part is not only heavy but also long, and it is difficult for the transmission support plate 21 to completely turn over the bent part of the stainless steel plate. Even if it is turned over reluctantly, the bent part of the stainless steel plate will be deformed, affecting the quality of the air conditioning valve frame. Therefore, the traditional processing method requires the operator to assist in turning;

[0076] When the auxiliary plate mechanism 4 bends the stainless steel plate for the third time, after the movable plate 41 on the auxiliary plate mechanism 4 is fully extended out of the supporting plate 21, the movable plate 41 flips toward the conveying frame 1. At the end of the third bending, the bending mechanism 2 and the conveying frame 1 are at 90 degrees. At this time, the force of the movable plate 41 on the auxiliary plate mechanism 4 rotating toward the conveying frame 1 will push the bent stainless steel plate to fall toward the conveying frame 1, so that the stainless steel plate that has been bent three times forms a rectangle, completing the bending manufacturing process of the air conditioning valve frame, without the need for operator assistance in flipping, effectively reducing the workload of operators and improving production efficiency;

[0077] The hydraulic lifting component 31 descends, and the pressing mechanism 3 descends to press the stainless steel plate. When the stainless steel plate is fixed, the second rack 32 descends accordingly and then drives the driven gear 12 to rotate in the opposite direction. The driven gear 12 rotates in the opposite direction to drive the third rack 51 to rise vertically, that is, drives the supporting rod 5 to rise vertically on the conveying frame 1, thereby supporting the bent stainless steel plate turned over from the bending mechanism 2, and fully ensuring that the bent stainless steel plate will not be deformed;

[0078] After the three bendings are completed, the pressing mechanism 3 rises and the bending mechanism 2 is reset, and the stainless steel structure with a rectangular frame can be taken out. Then, the production of the air-conditioning valve can be completed after subsequent welding, installation and other steps.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A hydraulic bending machine for producing air conditioner valve frames, comprising a conveying frame (1), a bending mechanism (2), a material pressing mechanism (3), an auxiliary plate mechanism (4), a supporting rod (5) and a control system (6), characterized in that: The front side of the conveying frame (1) is rotatably connected to a bending mechanism (2), the pressing mechanism (3) is vertically slidably connected to the front end of the conveying frame (1), a supporting rod (5) is arranged at the rear side of the pressing mechanism (3), the supporting rod (5) is vertically slidably connected to the conveying frame (1), the auxiliary plate mechanism (4) is slidably connected in the bending mechanism (2), and the control system (6) is arranged on one side of the conveying frame (1); The front side of the bending mechanism (2) is fixedly connected to a supporting plate (21), and the auxiliary plate mechanism (4) is slidably connected inside the supporting plate (21); The control system (6) can drive the bending mechanism (2) to rotate, and the rotation of the bending mechanism (2) can drive the auxiliary plate mechanism (4) to slide; The bending mechanism (2) comprises a driving gear (22), a transmission chain (23) and a transmission wheel (24); the driving gear (22) is symmetrically arranged on the support plate (21); the driving gear (22) is rotatably connected to the front side of the support plate (21); the transmission wheel (24) is symmetrically connected to the bending mechanism (2); the driving gear (22) and the transmission wheel (24) are connected via the transmission chain (23); A fixed gear (11) is provided at the rotational connection between the bending mechanism (2) and the conveying frame (1), the fixed gear (11) is fixedly connected to the conveying frame (1), and the transmission wheel (24) is meshed with the fixed gear (11); The auxiliary plate mechanism (4) comprises a first rack (42), a movable plate (41) and a torsion spring (43); the first rack (42) is a set of two sets of first racks (42) symmetrically fixedly connected to the two sides of the auxiliary plate mechanism (4); the movable plate (41) is rotatably connected to the front side of the auxiliary plate mechanism (4); a torsion spring (43) is provided at the connection between the movable plate (41) and the auxiliary plate mechanism (4); and the driving gear (22) is meshed with the first rack (42); The material pressing mechanism (3) comprises a hydraulic lifting component (31) and a second rack (32), wherein the hydraulic lifting component (31) is symmetrically arranged in two groups on both sides of the material pressing mechanism (3), the hydraulic lifting component (31) is fixedly connected to both sides of the conveying frame (1), a slide groove is arranged on the rear side of the hydraulic lifting component (31), the second rack (32) is slidably connected in the slide groove, and the second rack (32) is fixedly connected to the lifting rod on the hydraulic lifting component (31); Sliding rods are fixedly connected to both sides of the support rod (5), and sliding rails (13) are symmetrically fixedly connected to both sides of the conveying frame (1). The sliding rods are slidably connected to the sliding rails (13), and the front side of the sliding rods is fixedly connected to the third rack (51); The conveying frame (1) is symmetrically rotatably connected to driven gears (12) on both sides, and the driven gear (12) is arranged between the second rack (32) and the third rack (51).

2. According to claim 1, a hydraulic bending machine for producing air conditioning valve frames is characterized in that: The second rack (32) is meshed with the front side of the driven gear (12), and the third rack (51) is meshed with the rear side of the driven gear (12).

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