Air pipe bending device

Abstract

The utility model relates to the technical field of air pipe machining, and discloses an air pipe bending device which comprises a bending machine, a cross rod is fixedly connected to the outer surface of the front side of the bending machine, two sliding sleeves are movably arranged on the outer surface of the cross rod in a sleeved mode, and screw holes are formed in the outer surfaces of the two sliding sleeves and the cross rod. A screw rod is in threaded connection with the interior of a screw hole, corresponding to the cross rod, of the sliding sleeve, a rotary knob is fixedly connected to the outer surface of the screw rod, a supporting block is fixedly connected to the outer surface of the front side of the sliding sleeve, and a supporting plate is fixedly connected to the outer surface of the top of the vertical rod. An air pipe raw material plate is supported through the supporting plates, the screw rod is driven to rotate through the rotary knob to be matched with the screw hole, and the position of the sliding sleeve is adjusted, so that the distance between the two supporting plates is adjusted, the two supporting plates can stably support air pipes with different lengths, and therefore the raw material plate is stably supported; and safety accidents caused by falling of the raw material plate are avoided.

Description

Technical Field

[0001] This utility model relates to the field of duct processing technology, specifically a duct bending device. Background Technology

[0002] Air ducts are piping systems used for air transport and distribution. There are two types: composite air ducts and inorganic air ducts. Composite air ducts are the most representative. They can be classified according to cross-sectional shape and material. Stainless steel air duct fabrication involves applying sealant to gaps such as seams, rivet seams, and the four corners of flanges. Before applying sealant, surface dust and oil should be removed. According to cross-sectional shape, air ducts can be divided into various types such as circular air ducts, rectangular air ducts, and flat oval air ducts. Among them, circular air ducts have the lowest resistance but the largest height dimension and are more complex to manufacture, so rectangular air ducts are mainly used. Bending devices are required during the processing of air ducts.

[0003] An existing patent (publication number: CN221456786U) discloses a composite duct bending device, aiming to solve the technical problems of current composite duct bending devices requiring manual operation, which is time-consuming, labor-intensive, and poses high safety risks. The device includes a base, a bending mechanism positioned on the front of the base opposite the upper side of the operating table, and a support mechanism positioned on the base opposite the operating table. This invention improves the structure of existing duct bending devices by incorporating a flipping mechanism on the operating table. This flipping mechanism is slidably connected to a bottom block to accommodate composite duct panels of different sizes. Utilizing an internally installed electric telescopic rod, when the composite duct is bent, the built-in electric telescopic rod drives the bending rod to push the top block, causing the composite duct panel to flip and determine the next bending position for further bending. This prevents accidents during manual positioning of the panel by the operator, improves the working efficiency of the bending device, and is beneficial for actual production.

[0004] When using the above-mentioned patented technology, the composite duct sheet to be processed is placed on the mold block of the operating table for positioning. However, there is a lack of supporting components for the sheet. Because the sheet is large in size, when one end of the sheet is suspended, the sheet may fall off the mold block of the operating table due to its weight, resulting in low bending efficiency and easy safety accidents. Therefore, a duct bending device is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present invention provides a duct bending device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a duct bending device, including a bending machine, a crossbar fixedly connected to the front outer surface of the bending machine, two sliding sleeves movably sleeved on the outer surface of the crossbar, threaded holes being opened on the outer surfaces of the two sliding sleeves and the crossbar, a screw threadedly connected to the threaded hole corresponding to the crossbar on the sliding sleeve, a knob fixedly connected to the outer surface of the screw, a support block fixedly connected to the front outer surface of the sliding sleeve, a vertical rod fixedly connected to the outer surface of the support block, and a support plate fixedly connected to the top outer surface of the vertical rod.

[0007] Furthermore, a connecting plate is fixedly connected to the outer surface of the bending machine, two hydraulic cylinders are fixedly installed on the outer surface of the connecting plate, an mounting plate is fixedly installed at the output end of the hydraulic cylinders, an upper bending die is installed on the outer surface of the mounting plate, and a lower bending die is installed on the outer surface of the bending machine.

[0008] Furthermore, the number of screw holes on the outer surface of the crossbar is several and arranged in a linear array.

[0009] Furthermore, two fixing blocks are fixedly connected to the front outer surface of the bending machine, and a sliding rod is fixedly connected between the two fixing blocks. A sliding plate is fixedly connected to the outer surface of the sliding sleeve, and the sliding plate is movably sleeved on the outer surface of the sliding rod.

[0010] Furthermore, the front outer surface of the crossbar is provided with scale lines.

[0011] Furthermore, an anti-slip pad is fixedly connected to the outer surface of the knob.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This duct bending device supports the duct material sheet through support plates, and drives the screw to rotate by the knob. By cooperating with the screw hole, the position of the sliding sleeve is adjusted, thereby adjusting the distance between the two support plates. This allows the two support plates to stably support ducts of different lengths, thus providing stable support for the material sheet and preventing the material sheet from falling and causing a safety accident. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This utility model Figure 2Enlarged structural diagram at point B.

[0018] In the diagram: 1. Bending machine; 2. Crossbar; 3. Sliding sleeve; 4. Screw hole; 5. Screw; 6. Knob; 7. Upright pole; 8. Support plate; 9. Hydraulic cylinder; 10. Mounting plate; 11. Upper bending die; 12. Lower bending die; 13. Sliding rod; 14. Slide plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] Please refer to the following: Figures 1-4 This utility model provides a technical solution: a duct bending device, including a bending machine 1. A crossbar 2 is fixedly connected to the front outer surface of the bending machine 1. Two sliding sleeves 3 are movably sleeved on the outer surface of the crossbar 2. Screw holes 4 are provided on the outer surfaces of both sliding sleeves 3 and the crossbar 2. Screws 5 are internally threaded into the screw holes 4 corresponding to the sliding sleeves 3 and the crossbar 2. A knob 6 is fixedly connected to the outer surface of the screw 5. A support block is fixedly connected to the front outer surface of the sliding sleeves 3. A vertical rod 7 is fixedly connected to the outer surface of the support block. A support plate 8 is fixedly connected to the top outer surface of the vertical rod 7. Specifically, according to the duct... Adjust the size of the raw material sheet and the position of the sliding sleeve 3. Then, turn the knob 6. The knob 6 drives the screw 5 to rotate, causing the screw 5 to disengage from the screw hole 4. This releases the limiting position of the sliding sleeve 3. Apply force to the sliding sleeve 3, causing it to slide on the outer surface of the crossbar 2. After adjusting the sliding sleeve 3 to the appropriate position, align the screw hole 4 on the sliding sleeve 3 with the screw hole 4 on the crossbar 2. Screw the screw 5 into the screw hole 4 to limit the position of the sliding sleeve 3 and the crossbar 2. Adjust the distance between the two support plates 8 to provide stable support for the raw material sheet and prevent it from falling and causing a safety accident.

[0022] In this embodiment, a connecting plate is fixedly connected to the outer surface of the bending machine 1, and two hydraulic cylinders 9 are fixedly installed on the outer surface of the connecting plate. An installation plate 10 is fixedly installed at the output end of the hydraulic cylinders 9. An upper bending die 11 is installed on the outer surface of the installation plate 10, and a lower bending die 12 is installed on the outer surface of the bending machine 1. Specifically, by working, the hydraulic cylinders 9 drive the installation plate 10 to move, so that the lower bending die 12 cooperates with the lower bending die 12 to perform bending work on the duct material plate.

[0023] In this embodiment, there are several screw holes 4 on the outer surface of the crossbar 2, arranged in a linear array. Specifically, when the screw holes 4 on the sliding sleeve 3 correspond to different screw holes 4 on the crossbar 2, the position of the sliding sleeve 3 is adjusted.

[0024] In this embodiment, two fixed blocks are fixedly connected to the front outer surface of the bending machine 1, and a slide rod 13 is fixedly connected between the two fixed blocks. A slide plate 14 is fixedly connected to the outer surface of the slide sleeve 3. The slide plate 14 is movably sleeved on the outer surface of the slide rod 13. Specifically, when the position of the slide sleeve 3 is adjusted, the slide plate 14 slides on the outer surface of the slide rod 13, so that the slide sleeve 3 moves stably.

[0025] In this embodiment, the outer surface of the front side of the crossbar 2 is provided with scale lines. Specifically, the scale lines facilitate observation of the distance between the two support plates 8.

[0026] In this embodiment, an anti-slip pad is fixedly connected to the outer surface of the knob 6. Specifically, the friction of the knob 6 is increased by setting the anti-slip pad.

[0027] Working principle: When using this utility model, the position of the sliding sleeve 3 is adjusted according to the size of the duct material plate. At this time, the knob 6 is turned, which drives the screw 5 to rotate, causing the screw 5 to disengage from the screw hole 4, releasing the limit on the sliding sleeve 3. Force is applied to the sliding sleeve 3, causing it to slide on the outer surface of the crossbar 2. After the sliding sleeve 3 is adjusted to a suitable position, the screw hole 4 on the sliding sleeve 3 corresponds to the screw hole 4 on the crossbar 2. The screw 5 is then screwed into the screw hole 4, limiting the position of the sliding sleeve 3 and the crossbar 2. The distance between the two support plates 8 is adjusted, and the plate is then placed on the support plate 8 to provide stable support for the material plate and prevent it from falling and causing a safety accident. The bending part is then placed on the lower bending die 12, and the upper bending die 11 is moved downward by the hydraulic cylinder 9, so that the upper bending die 11 and the lower bending die 12 face each other to perform bending work on the material plate.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A duct bending apparatus comprising a bending machine (1), characterized in that: A crossbar (2) is fixedly connected to the front outer surface of the bending machine (1). Two sliding sleeves (3) are movably fitted on the outer surface of the crossbar (2). Screw holes (4) are opened on the outer surfaces of the two sliding sleeves (3) and the crossbar (2). A screw (5) is internally threaded into the screw hole (4) corresponding to the crossbar (2). A knob (6) is fixedly connected to the outer surface of the screw (5). A support block is fixedly connected to the front outer surface of the sliding sleeve (3). A vertical rod (7) is fixedly connected to the outer surface of the support block. A support plate (8) is fixedly connected to the top outer surface of the vertical rod (7).

2. A duct bending device according to claim 1, characterized in that: A connecting plate is fixedly connected to the outer surface of the bending machine (1). Two hydraulic cylinders (9) are fixedly installed on the outer surface of the connecting plate. An installation plate (10) is fixedly installed at the output end of the hydraulic cylinder (9). An upper bending die (11) is installed on the outer surface of the installation plate (10). A lower bending die (12) is installed on the outer surface of the bending machine (1).

3. The ductwork bending apparatus of claim 1, wherein: The number of screw holes (4) on the outer surface of the crossbar (2) is several and arranged in a linear array.

4. The ductwork bending apparatus of claim 1, wherein: Two fixing blocks are fixedly connected to the front outer surface of the bending machine (1), and a slide rod (13) is fixedly connected between the two fixing blocks. A slide plate (14) is fixedly connected to the outer surface of the sliding sleeve (3), and the slide plate (14) is movably sleeved on the outer surface of the slide rod (13).

5. The ductwork bending apparatus of claim 1, wherein: The front outer surface of the crossbar (2) is provided with scale lines.

6. The ductwork bending apparatus of claim 1, wherein: The outer surface of the knob (6) is fixedly connected with an anti-slip pad.

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