Ventilation pipe galvanized plate bending device

Abstract

The utility model discloses a ventilation pipe galvanized plate bending device which comprises a device frame, a top end pressurizing shell and a bottom pressure-bearing shell. The utility model relates to the technical field of galvanized sheet production and processing, and discloses a galvanized sheet bending device which is different from a common bending device, and a pressing and turning part is in a fixed shape, so that accurate fitting cannot be realized when a galvanized sheet is bent, the galvanized sheet is abraded when being bent, flying chips are generated, and the production efficiency is improved. The bottom pressure-bearing shell precise adjustment pressure-bearing structure can enable the pair of pressure-bearing flitches to precisely control the bending amplitude of the galvanized sheet, and meanwhile, the pressing precise adjustment structure on the upper portion can be perfectly synchronous with the bending amplitude on the lower portion under the control of a program, so that friction and displacement of the galvanized sheet are avoided during bending, bending damage and abrasion are greatly reduced, and the service life of the galvanized sheet is prolonged. And the yield is greatly increased.

Description

Technical Field

[0001] The utility model relates to the technical field of galvanized sheet production and processing, in particular to a galvanized sheet bending device for a ventilation pipe. Background Art

[0002] Galvanized steel sheet for ventilation duct is a steel sheet used for ventilation duct, which is coated with a layer of zinc on the surface to provide corrosion resistance and durability. Galvanizing is a commonly used anti-rust method. By covering the surface of the steel sheet with a layer of zinc, the steel sheet can be effectively prevented from rusting and corrosion. This steel sheet is widely used in various ventilation duct projects, such as air conditioning systems, industrial ventilation systems, etc. Compared with ordinary steel sheets, galvanized steel sheets have longer service life and better durability, which can ensure the normal operation of the ventilation system and reduce the frequency of maintenance and replacement. In addition, galvanized steel sheets also have the characteristics of beautiful appearance and easy cleaning, which can improve the comfort and air quality of the indoor environment. When using galvanized steel sheets to make ventilation ducts, it is necessary to select steel sheets of appropriate specifications and thicknesses according to specific application scenarios and requirements, and carry out corresponding processing and installation. The reason why the galvanized steel sheet for ventilation ducts needs to be bent is mainly to meet the design and installation requirements of the ventilation duct system. In many cases, ventilation ducts need to be bent to adapt to the structure and layout of the building, or to connect different equipment or components. By bending the galvanized steel sheet, ventilation ducts of different shapes and angles can be made to meet the needs of practical applications. The galvanized sheet of the ventilation pipe after bending can better adapt to the structure of the building, improve the efficiency of the ventilation system, and reduce the occupied space and installation cost. In addition, bending can also improve the stability and reliability of the ventilation duct, reduce vibration and noise, and improve the service life and performance of the ventilation system. Therefore, when making a ventilation duct system, bending is one of the essential process steps. The coating is prone to powdering and peeling during the forming process of the galvanized sheet. At present, the galvanized steel sheet needs to be tested for mechanical properties before sales. The galvanized steel sheet needs to be bent and the zinc powder falling off after the galvanized steel sheet is bent is observed to identify the quality of the galvanized steel sheet. However, in the existing mechanical property test process of the galvanized steel sheet, the reliability of the manual fixation of the galvanized steel sheet is poor, the manual control of the bending operation of the galvanized steel sheet is complicated, and the bending degree of the galvanized steel sheet at the specified angle cannot be accurately controlled. The zinc powder falling off caused by friction in the bending area of ​​the zinc sheet and the zinc powder adhering to the contact surface have an impact on the performance detection of the galvanized sheet, such as the "Utility Model CN2 10450419U A galvanized sheet bending device The utility model discloses a galvanized sheet bending device, which belongs to the field of zinc sheet quality inspection equipment. It includes a support frame; a bending workbench composed of a symmetrically arranged left bending workbench and a right bending workbench; the adjacent ends of the left and right bending workbench are rotatably connected to the support frame; a gap is left between the adjacent ends of the left and right bending workbench; it also includes a workbench driving member, which is composed of a symmetrically arranged left and right workbench driving members, respectively providing driving force for the rotation of the left and right bending workbench; the upper corner die is in an inverted triangle shape, and is arranged directly above the symmetry axis of the left bending workbench and the right bending workbench; the upper corner die driving member provides driving force for the lifting and lowering movement of the upper corner die.The utility model bends the galvanized sheet to be tested by the cooperation of the upper corner die and the bending workbench. The bending process is simple to implement and the influence of interference factors on the performance test of the galvanized sheet is greatly reduced. It has the advantages of simple structure, reasonable design and easy manufacturing. "For the above problems, there may be technical means to solve them in the prior art, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, the utility model is implemented through the following technical solutions: a ventilation pipe galvanized sheet bending device, comprising: a device frame, a top pressure shell and a bottom pressure shell, the top pressure shell is installed on the device frame, the bottom pressure shell is installed on the device frame, a compression fine adjustment structure is installed on the top pressure shell, and the bottom pressure shell accurately adjusts the pressure structure;

[0004] The bottom pressure-bearing shell accurately adjusts the pressure-bearing structure, including: an amplitude adjustment motor, a driving threaded rod, a pair of rod upper modules, a pair of connecting and adjusting connecting rods, a pair of pressure-bearing plates and a pair of plate upper limit ends;

[0005] The amplitude adjustment motor is installed on the device frame, the driving threaded rod is installed in the bottom pressure-bearing shell, and the driving threaded rod is connected to the amplitude adjustment motor, a pair of the rod-on modules are respectively installed on the driving threaded rod, a pair of the connection adjustment connecting rods are respectively installed on the pair of the rod-on modules through rotating shafts, a pair of the pressure-bearing plates are respectively installed on the bottom pressure-bearing shell through rotating shafts, a pair of connecting slide grooves are respectively opened on the bottom pressure-bearing shell, a pair of the connection adjustment connecting rods are respectively inserted into the bottom pressure-bearing shell through a pair of connecting slide grooves, and a pair of the connection adjustment connecting rods are respectively connected to the bottom of a pair of the pressure-bearing plates through rotating shafts, and a pair of the plate upper limit ends are respectively installed on a pair of the pressure-bearing plates.

[0006] It should be noted that, in the above, the galvanized sheet is placed on a pair of pressure plates on the device frame, and the amplitude adjustment motor is driven to drive the driving threaded rod to rotate. Because the reverse double threads are arranged on the driving threaded rod, when the driving threaded rod rotates, a pair of modules on the rod will move relative to each other, thereby driving the connecting adjustment connecting rod to make the pair of pressure plates adjust and shift the amplitude along the bottom pressure-bearing shell until the ideal bending amplitude is reached, and then the compression fine-tuning structure on the top pressure shell is driven to tightly fit and bend the galvanized sheet. A pair of plate upper limit ends can ensure that the galvanized sheet will not displace and slide out when it is compressed and bent, thereby reducing the friction and wear on the galvanized sheet and alleviating the flying chips generated when it is bent.

[0007] Preferably, the compression fine adjustment structure comprises: a telescopic hydraulic cylinder, a compression bearing column, a pair of amplitude adjustment hydraulic rods, a core fine adjustment hydraulic rod, a pair of compression plates and a compression arc guard plate;

[0008] The telescopic hydraulic cylinder is installed in the top pressure shell, the compression bearing column is connected to the telescopic hydraulic cylinder, a pair of amplitude adjustment hydraulic rods are respectively installed on the compression bearing column through a rotating shaft, and a pair of amplitude adjustment hydraulic rods are respectively connected to a pair of compression plates through a rotating shaft, the core fine-tuning hydraulic rod is installed at the bottom of the compression bearing column, and the compression arc guard plate is installed on the core fine-tuning hydraulic rod;

[0009] It should be noted that, in the above, a pair of amplitude-adjusting hydraulic rods are extended and retracted, thereby adjusting the opening and closing amplitude of a pair of compression plates. This amplitude is precisely adjusted for the amplitude of a pair of pressure-bearing plates below. This item can be coordinated and debugged by engineers and programmers, and made automatic. At the same time, the compression arc guard plate is adjusted and coordinated by the core fine-tuning hydraulic rod, so that the arc formed by the compression arc guard plate and the pair of compression plates is perfectly matched with the pair of pressure-bearing plates below. After that, the telescopic hydraulic cylinder pushes the compression bearing column downward until the galvanized plate is perfectly bent.

[0010] Preferably, the driving threaded rod is provided with reverse double threads;

[0011] Preferably, the top pressurized housing is provided with an inspection and maintenance port;

[0012] Preferably, a protective rubber pad is provided on the pressure-bearing plate;

[0013] Preferably, a protective rubber pad is provided on the compression plate.

[0014] Beneficial Effects

[0015] The utility model provides a galvanized sheet bending device for ventilation pipes. It has the following beneficial effects, compared with the prior art: the device is different from a general bending device, and the compression turning part is of a fixed shape, so it cannot be accurately fitted when bending the galvanized sheet, causing the galvanized sheet to wear and produce flying chips when bending. The bottom pressure-bearing shell accurately adjusts the pressure-bearing structure so that a pair of pressure-bearing plates can accurately control the bending amplitude of the galvanized sheet. At the same time, the upper compression fine-tuning structure can be perfectly synchronized with the bending amplitude below under the control of the program, so that the friction and displacement of the galvanized sheet are avoided during bending, which greatly reduces the bending damage and wear, and greatly increases the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front and cross-sectional structure of a ventilation pipe galvanized sheet bending device described in the utility model.

[0017] Figure 2 for Figure 1 A partial enlarged schematic diagram of "A" in the figure.

[0018] In the figure: 1. Device frame; 2. Top pressure shell; 3. Bottom pressure shell; 4. Amplitude adjustment motor; 5. Driving threaded rod; 6. Module on rod; 7. Connecting adjustment rod; 8. Pressure plate; 9. Upper limit end of plate; 10. Telescopic hydraulic cylinder; 11. Compression bearing column; 12. Amplitude adjustment hydraulic rod; 13. Core fine-tuning hydraulic rod; 14. Compression plate; 15. Compression arc guard plate. DETAILED DESCRIPTION

[0019] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0020] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0021] Example

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-2As shown, a galvanized sheet metal bending device for a ventilation pipe comprises: a device frame 1, a top pressure shell 2 and a bottom pressure shell 3, wherein the top pressure shell 2 is mounted on the device frame 1, and the bottom pressure shell 3 is mounted on the device frame 1, and a compression fine-adjustment structure is mounted on the top pressure shell 2, and the bottom pressure shell 3 precisely adjusts the pressure-bearing structure; the bottom pressure shell 3 precisely adjusts the pressure-bearing structure, comprising: an amplitude adjustment motor 4, a driving threaded rod 5, a pair of rod upper modules 6, a pair of connection adjustment connecting rods 7, a pair of pressure-bearing plates 8 and a pair of plate upper limit ends 9; the amplitude adjustment motor 4 is mounted on the device frame 1, the driving threaded rod 5 is mounted in the bottom pressure shell 3, and the driving threaded rod 5 is connected to the amplitude adjustment motor 4, a pair of rod upper modules 6 are respectively mounted on the driving threaded rod 5, a pair of connection adjustment connecting rods 7 are respectively mounted on a pair of rod upper modules 6 through rotating shafts, a pair of pressure-bearing plates 8 are respectively mounted on the bottom pressure shell 3 through rotating shafts, and the bottom pressure shell A pair of connecting slides are respectively provided on the body 3, a pair of connecting and adjusting connecting rods 7 are respectively inserted into the bottom pressure-bearing shell 3 through a pair of connecting slides, and a pair of connecting and adjusting connecting rods 7 are respectively connected to the bottom of a pair of pressure-bearing plates 8 through a rotating shaft, and a pair of upper limit ends 9 of the plate are respectively installed on a pair of pressure-bearing plates 8; the compression fine adjustment structure includes: a telescopic hydraulic cylinder 10, a compression bearing column 11, a pair of amplitude adjustment hydraulic rods 12, a core fine adjustment hydraulic rod 13, a pair of compression plates 14 and a compression Arc-shaped guard plate 15; the telescopic hydraulic cylinder 10 is installed in the top pressure shell 2, the compression bearing column 11 is connected to the telescopic hydraulic cylinder 10, a pair of amplitude adjustment hydraulic rods 12 are respectively installed on the compression bearing column 11 through rotating shafts, and a pair of amplitude adjustment hydraulic rods 12 are respectively connected to a pair of compression plates 14 through rotating shafts, the core fine-tuning hydraulic rod 13 is installed at the bottom of the compression bearing column 11, and the compression arc-shaped guard plate 15 is installed on the core fine-tuning hydraulic rod 13.

[0023] According to the attached Figure 1-2It is concluded that the galvanized sheet is placed on a pair of pressure-bearing plates 8 on the device frame 1, and the amplitude adjustment motor 4 is driven to drive the driving threaded rod 5 to rotate. Because the reverse double threads are arranged on the driving threaded rod 5, when the driving threaded rod 5 rotates, the pair of rod modules 6 will move relatively, thereby driving the connecting adjustment connecting rod 7 to make the pair of pressure-bearing plates 8 adjust and shift their amplitudes along the bottom pressure-bearing shell 3 until the ideal bending amplitude is reached, and then the compression fine-tuning structure on the top pressure shell 2 is driven to tightly fit and bend the galvanized sheet. A pair of plate upper limit ends 9 can ensure that the galvanized sheet will not displace and slide out when it is compressed and bent, thereby reducing Reduce friction and wear on the galvanized sheet and reduce flying chips generated when it is bent; a pair of amplitude-adjusting hydraulic rods 12 are extended and retracted, thereby adjusting the opening and closing amplitude of a pair of compression plates 14. This amplitude is precisely adjusted for the amplitude of a pair of pressure-bearing plates 8 below. This item can be coordinated and debugged by engineers and programmers and automated. At the same time, the compression arc guard plate 15 is adjusted and coordinated by the core fine-tuning hydraulic rod 13, so that the arc formed by the compression arc guard plate 15 and the pair of compression plates 14 is perfectly matched with the pair of pressure-bearing plates 8 below. Then the telescopic hydraulic cylinder 10 pushes the compression bearing column 11 downward until the galvanized sheet is perfectly bent.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A galvanized sheet bending device for a ventilation pipe, comprising: The device frame (1), the top pressure shell (2) and the bottom pressure shell (3), characterized in that the top pressure shell (2) is mounted on the device frame (1), the bottom pressure shell (3) is mounted on the device frame (1), a compression fine adjustment structure is mounted on the top pressure shell (2), and the bottom pressure shell (3) accurately adjusts the pressure structure; The bottom pressure-bearing shell (3) accurately adjusts the pressure-bearing structure, comprising: an amplitude adjustment motor (4), a driving threaded rod (5), a pair of rod upper modules (6), a pair of connecting and adjusting connecting rods (7), a pair of pressure-bearing plates (8) and a pair of plate upper limit ends (9); The amplitude adjustment motor (4) is mounted on the device frame (1), the driving threaded rod (5) is mounted in the bottom pressure-bearing shell (3), and the driving threaded rod (5) is connected to the amplitude adjustment motor (4), a pair of the rod-on modules (6) are respectively mounted on the driving threaded rod (5), a pair of the connecting and adjusting connecting rods (7) are respectively mounted on the pair of the rod-on modules (6) through rotating shafts, a pair of the pressure-bearing plates (8) are respectively mounted on the bottom pressure-bearing shell (3) through rotating shafts, a pair of connecting and adjusting connecting rods (7) are respectively inserted into the bottom pressure-bearing shell (3) through a pair of connecting sliding grooves, and a pair of the connecting and adjusting connecting rods (7) are respectively connected to the bottom of a pair of the pressure-bearing plates (8) through rotating shafts, and a pair of the plate upper limit ends (9) are respectively mounted on a pair of the pressure-bearing plates (8).

2. A ventilation pipe galvanized sheet bending device according to claim 1, characterized in that: The compression fine adjustment structure comprises: a telescopic hydraulic cylinder (10), a compression bearing column (11), a pair of amplitude adjustment hydraulic rods (12), a core fine adjustment hydraulic rod (13), a pair of compression plates (14) and a compression arc-shaped guard plate (15); The telescopic hydraulic cylinder (10) is installed in the top pressure shell (2), the compression bearing column (11) is connected to the telescopic hydraulic cylinder (10), a pair of amplitude adjustment hydraulic rods (12) are respectively installed on the compression bearing column (11) through rotating shafts, and a pair of amplitude adjustment hydraulic rods (12) are respectively connected to a pair of compression plates (14) through rotating shafts, the core fine-tuning hydraulic rod (13) is installed at the bottom of the compression bearing column (11), and the compression arc guard plate (15) is installed on the core fine-tuning hydraulic rod (13).

3. A ventilation pipe galvanized sheet bending device according to claim 2, characterized in that: The driving threaded rod (5) is provided with reverse double threads.

4. A galvanized sheet metal bending device for ventilation pipes according to claim 3, characterized in that: The top pressure shell (2) is provided with an inspection and maintenance port.

5. A ventilation pipe galvanized sheet bending device according to claim 4, characterized in that: A protective rubber pad is provided on the pressure-bearing plate (8).

6. A galvanized sheet metal bending device for ventilation pipes according to claim 5, characterized in that: A protective rubber pad is provided on the compression plate (14).

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