Horizontal passive uncoiling device for metal pipes

Abstract

The utility model discloses a horizontal passive uncoiling device for a metal pipe, which comprises a base support and a supporting module positioned on the base support, and is characterized in that the supporting module comprises a material platform arranged at the bottom end of the supporting module, a vertical shaft is arranged in the center of the material platform, and a mounting plate is arranged on the vertical shaft; a plurality of inner supporting air cylinders which are uniformly distributed along the circumference of the vertical shaft are arranged on the mounting plate, the plurality of inner supporting air cylinders are respectively connected with inner supporting plates, and the plurality of inner supporting plates form an inner ring cylindrical positioning model of the coil pipe material; a pressing module is further arranged on the base support and comprises a pressing air cylinder, the pressing air cylinder is connected with a pressing plate, and the pressing plate forms an outer ring stroking and pressing model of coil pipe materials. The coil loosening degree in the uncoiling process is restrained and adjusted at any time, the problems of collapse, knotting, chuck clamping and the like in the coil uncoiling process are solved, controllability is high, the structure is stable and reliable, and the uncoiling requirements of different heat exchanger product production lines are met.

Description

Technical Field

[0001] The utility model relates to a metal pipe deep processing technology, in particular to a metal pipe horizontal passive unwinding device. Background Art

[0002] In the process of using metal coils to make heat exchangers, the first step is to unwind the neat metal coils into straight tubes. The equipment commonly used in this process are vertical unwinding devices and horizontal unwinding devices.

[0003] Among them, the vertical unwinding device, such as the patent announcement CN214879078U, is a large-diameter composite pipe on-site unwinding device, including an unwinding disk with a composite pipe wound around it, and a bracket for supporting the rotation of the unwinding disk. A lifting mechanism for the unwinding disk is provided on the bracket, and a speed regulating mechanism for controlling the unwinding speed of the unwinding disk is provided on the bracket. This design has certain requirements for the site height. The loading of metal coils requires special equipment such as a crane to assist in vertical lifting and loading, which has certain safety hazards and also requires high quality of employees.

[0004] The horizontal unwinding device is an active unwinding device with patent announcement number CN214455686U, which includes a frame, a rotating support mechanism, an unwinding disk, a driving mechanism and a tension control mechanism; the unwinding disk can be used to place the tube or wire for unwinding, and the rotating support mechanism includes a first rotating member and a second rotating member for supporting the unwinding disk, and the first rotating member and the second rotating member are arranged on the frame and spaced from each other; the driving mechanism is used to drive the first rotating member and the second rotating member to rotate to drive the unwinding disk to rotate; the tension control mechanism includes a position detector, and the position detector is used to detect the height position of the unwinding of the tube or wire, and the output speed of the driving mechanism is adjusted according to the height position of the unwinding. And so on, this type of active unwinding device is not only complex in structure, but also has high technical requirements for maintenance.

[0005] The passive unwinding device commonly used in the industry is basically composed of a bracket and a discharge tray, which has no constraints on the metal tube. When used to unwind neatly coiled metal tubes, since the metal tubes are stacked in a reciprocating manner, when the tubes are pulled upward from the lower end in a horizontal position, the upper metal tube lacks support and collapses under the action of gravity. At this time, the inner circle of metal tubes is no longer constrained by the outer circle of metal tubes and also collapses. As a result, the metal tube rings are prone to knotting, resulting in the need to stop work for sorting, causing unnecessary waste. At the same time, during the use of the metal coil after unloading, there will be a short stop time. Under the action of inertia, the discharge tray may continue to rotate, and the outer circle of metal tubes will escape from the discharge tray and fall, causing the metal tube to get stuck on the bracket or be scrapped. Summary of the invention

[0006] The utility model aims to solve the above problems and provides a horizontal passive unwinding device for metal pipes, which has the characteristics of simple structure, instant constraint and adjustment of the looseness of the unwinding pipe, and can avoid the collapse, knotting, chuck and other phenomena of the coiled pipe during the unwinding process.

[0007] The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a horizontal passive unwinding device for metal tubes, comprising a base bracket and a supporting module located on the base bracket, characterized in that the supporting module comprises a material platform arranged at its bottom end, a vertical shaft is arranged in the center of the material platform, a mounting plate is arranged on the vertical shaft, a plurality of inner supporting cylinders evenly distributed along a circle of the vertical shaft are arranged on the mounting plate, the plurality of inner supporting cylinders are respectively connected with inner supporting plates, and the plurality of inner supporting plates constitute an inner ring cylindrical positioning model of the coil material; a clamping module is also arranged on the base bracket, the clamping module comprises a clamping cylinder, the clamping cylinder is connected with a clamping plate, and the clamping plate constitutes an outer ring pressing model of the coil material.

[0008] In the aforementioned horizontal passive unwinding device for a metal tube, preferably, the clamping module includes a base plate connected and fixed to a base bracket, a guide rail is provided on the base plate, a cylinder slider is provided in cooperation with the guide rail, the cylinder slider is connected to the clamping cylinder piston, and the clamping plate is connected to the cylinder slider through a mounting rod; the clamping cylinder is fixed to the base bracket or the base plate.

[0009] In the aforementioned horizontal passive unwinding device for metal tubes, preferably, the mounting rod is a U-shaped or L-shaped rod structure, and the side of the pressing plate facing the coil material is an arc surface.

[0010] In the aforementioned horizontal passive unwinding device for metal tubes, preferably, a slider connecting rod is provided in cooperation with the cylinder slider, and a pressure plate slider cooperating with the guide rail is provided at the end of the mounting rod, and the slider connecting rod is detachably connected to the cylinder slider and the pressure plate slider.

[0011] In the aforementioned horizontal passive unwinding device for metal tubes, preferably, the base support is provided with a long hole or an auxiliary plate for adjusting the base plate up and down.

[0012] In the aforementioned horizontal passive unwinding device for metal tubes, preferably, the plurality of inner support plates constitute an inner cylindrical positioning model of the coil material, and the minimum diameter of the formed cylinder is smaller than the inner hole of the coil material prototype.

[0013] In the aforementioned horizontal passive unwinding device for metal tubes, preferably, the base bracket is provided with a support plate, and the support plate is provided with a support shaft; the vertical shaft in the support module is a hollow shaft, and the vertical shaft and the support shaft cooperate.

[0014] In the aforementioned horizontal passive unwinding device for metal tubes, preferably, a bearing is provided in the vertical shaft, and the vertical shaft is sleeved on the bracket shaft; a ball bearing is provided between the material platform and the base bracket.

[0015] This technical solution is a complete device, based on a base bracket, and can be moved to any position of the pipe processing and assembly line operation. The unwinding function mainly consists of two parts: a support module and a clamping module.

[0016] The support module uses the material platform as the carrier of the metal tube (coil). The center of the material platform is equipped with a cylindrical positioning model to support the inner circle of the coil material. This model supports the inner circle of the coil with great force. The outer circle of the coil is formed into an outer circle pressing model by the clamping module, which provides certain support to the outer circle of the coil with a small force to prevent the upper layer of the outer circle from collapsing. At the same time, it also provides appropriate friction to the metal coil to prevent the metal coil from falling off the material platform under the action of inertia.

[0017] The support module is a variable diameter cylindrical positioning model, which consists of an internal support cylinder that is positioned on the central axis, moves synchronously, is evenly distributed, and an internal support plate that forms a cylinder. It has a simple structure, is easy to operate, and has a fast response.

[0018] The clamping module can be linked with the support module through the clamping cylinder. The clamping module can realize the horizontal free movement of the clamping plate through a simple combination of pure mechanical guide rails. When the outer diameter of the coil is too large or too small and a different stroke is required, it can be adjusted by replacing the slider connecting rod, or by adjusting the up and down position of the base plate to adapt to cylinders of different sizes and lengths. That is, under the same basic framework, the needs of different product production lines can be met through appropriate position changes or changes in individual parts.

[0019] Furthermore, the mounting rod is a U-shaped or L-shaped rod structure with high structural strength and small space occupation; the pressing plate is curved on the side facing the coil material, forming the best pressing area with the least plate width. The base bracket cooperates with the vertical shaft in the support module through the bracket shaft, and is equipped with bearings and other resistance-reducing components to form a degree of freedom limitation other than rotation, ensuring the flexibility of the entire device and safe and stable operation.

[0020] Compared with the prior art, the beneficial effects of the utility model are: through a simple pneumatic mechanical structure, the looseness of the coil in the uncoiling process can be constrained and adjusted at any time, and the problems of coil collapse, knotting, and chuck during the uncoiling process are completely solved. It has strong controllability and a stable and reliable structure. It can also meet the uncoiling needs of different heat exchanger product production lines by adjusting the position of components or changing a small number of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 yes Figure 1 Top view of the .

[0023] Figure 3 The utility model is a schematic diagram of a base bracket structure.

[0024] Figure 4 It is a structural schematic diagram of a support module of the utility model.

[0025] Figure 5 The utility model is a schematic diagram of the structure of a compression module.

[0026] In the figure: 1- clamping module, 101- base plate, 102- guide rail, 103- cylinder slider, 104- pressure plate slider, 105- slider connecting rod, 106- mounting rod, 107- clamping plate, 108- clamping cylinder, 2- support module, 201- vertical shaft, 2011- mounting plate, 2012- tenon, 202- inner support cylinder, 203- support plate rod, 204- inner support plate, 3- base bracket, 301- bracket foot, 302- support plate, 303- bracket shaft, 4- material platform, 5- coil material. DETAILED DESCRIPTION

[0027] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0028] This embodiment is a horizontal passive unwinding device for a metal tube, such as Figure 1 , Figure 2 As shown, it is mainly composed of a base support 3 , a support module 2 located on the base support 3 , and a pressing module 1 .

[0029] The base support 3 includes four support legs 301, such as Figure 3 As shown, a support plate 302 is supported by a support foot 301, and a support shaft 303 is provided at the center of the support plate 302. The support shaft 303 serves as a central positioning shaft of the support module 2.

[0030] Support module 2 see Figure 2 and Figure 4 , including a material platform 4 arranged at its bottom, the material platform 4 is a circular flat plate, a vertical shaft 201 is arranged at the center of the material platform 4, the vertical shaft 201 is a hollow shaft, and the vertical shaft 201 cooperates with the bracket shaft 303 on the base bracket 3. A bearing is arranged in the vertical shaft 201, and the vertical shaft 201 is sleeved on the bracket shaft 303 through the bearing, and a ball bearing is arranged between the material platform 4 and the base bracket 3 to keep the material platform 4 flexibly rotating relative to the base bracket 3. The hollow vertical shaft 201 in the support module 2 and the material platform 4 are connected by three tenons 2012.

[0031] Furthermore, a horizontally arranged mounting plate 2011 is provided on the vertical shaft 201, and three inner support cylinders 202 are evenly distributed along a circle of the vertical shaft 201 on the mounting plate 2011. The three inner support cylinders 202 are respectively connected to inner support plates 204 through support plate rods 203, and the three inner support cylinders 202 act synchronously. The inner support plates 204 are arc panels, and the three inner support plates 204 constitute the inner circle cylindrical positioning model of the coil material 5. The minimum diameter of the cylinder formed by the three inner support plates 204 is smaller than the prototype inner hole of the coil material 5, and the prototype inner hole is the inner circle diameter of the raw material coil material 5 roll.

[0032] A pressing module 1 is provided on the base support 3 , and the pressing module 1 is provided with a pressing cylinder 108 . The pressing cylinder 108 is connected to a pressing plate 107 via a mounting rod 106 , and the pressing plate 107 constitutes an outer ring pressing model of the coil material 5 .

[0033] Specifically, see Figure 5 The clamping module 1 includes a base plate 101 connected and fixed to the base bracket 3. The base bracket 3 is provided with a long hole or an auxiliary plate for adjusting the base plate 101 up and down to adapt to the installation of cylinders of different sizes and lengths. The base plate 101 is provided with a horizontally arranged double guide rail 102, and a cylinder slider 103 is provided in cooperation with the double guide rail 102. A slider connecting rod 105 is provided in cooperation with the cylinder slider 103. A pressure plate slider 104 is provided at the end of the mounting rod 106 to cooperate with the guide rail 102. The slider connecting rod 105 is detachably connected to the cylinder slider 103 and the pressure plate slider 104, so that when the outer diameter of the coil material 5 is too large or too small and a different cylinder needs to be used, it can be replaced to adapt. The clamping cylinder 108 is fixed on the base bracket 3 or the base plate 101.

[0034] The mounting rod 106 is a U-shaped or L-shaped rod structure, which does not take up space and is easy to install and replace. The pressing plate 107 has a curved surface facing the coil material 5.

[0035] During operation: In the initial state, the clamping cylinder 108 and the inner support cylinder 202 are both in the initial state of contraction. When the metal coil material 5 is hoisted horizontally onto the material platform 4, the start button is activated, and the clamping cylinder 108 and the inner support cylinder 202 extend to fix the coil material 5 on the unwinding device in this example. At this time, the inner support plate 204 located in the inner circle of the coil material 5 supports the inner circle with greater force, and the clamping plate 107 located in the outer circle of the coil material 5 provides a certain support to the outer circle of the coil material 5 with less force, thereby preventing the upper layer of the outer circle from collapsing, and at the same time providing a certain friction force to the metal coil material 5 to prevent the metal coil material 5 from falling off the material platform 4 under the action of inertia.

[0036] The above embodiments are illustrations of the present invention, not limitations of the present invention. Without departing from the principles of the present technical solution, any equivalent changes or equivalent modifications made in accordance with the technical ideas proposed by the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A horizontal passive unwinding device for a metal tube, comprising a base support (3), a support module (2) located on the base support, and characterized in that The support module includes a material platform (4) arranged at its bottom end, a vertical shaft (201) is provided at the center of the material platform, a mounting plate (2011) is provided on the vertical shaft, and a plurality of inner support cylinders (202) are evenly distributed along a circumference of the vertical shaft are provided on the mounting plate, the plurality of inner support cylinders are respectively connected to inner support plates (204), and the plurality of inner support plates constitute an inner cylindrical positioning model of the coil material (5); a clamping module (1) is also provided on the base bracket, the clamping module includes a clamping cylinder (108), the clamping cylinder is connected to a clamping plate (107), and the clamping plate constitutes an outer ring pressing model of the coil material.

2. A horizontal passive unwinding device for metal tubes according to claim 1, characterized in that: The clamping module (1) comprises a base plate (101) connected and fixed to a base bracket (3); a guide rail (102) is provided on the base plate; a cylinder slider (103) is provided in cooperation with the guide rail; the cylinder slider is connected to a piston of a clamping cylinder (108); a clamping plate (107) is connected to the cylinder slider via a mounting rod (106); the clamping cylinder is fixed to the base bracket or the base plate.

3. A horizontal passive unwinding device for metal tubes according to claim 2, characterized in that: The installation rod (106) is a U-shaped or L-shaped rod structure, and the pressing plate (107) has a curved surface facing the coil material (5).

4. A horizontal passive unwinding device for metal tubes according to claim 2 or 3, characterized in that: A slider connecting rod (105) is provided in cooperation with the cylinder slider (103), and a pressure plate slider (104) is provided at the end of the mounting rod (106) and is cooperated with the guide rail (102). The slider connecting rod is detachably connected to the cylinder slider and the pressure plate slider.

5. A horizontal passive unwinding device for metal tube according to claim 2 or 3, characterized in that: The base support (3) is provided with a long hole or an auxiliary plate for adjusting the base plate (101) up and down.

6. The horizontal passive unwinding device for metal tube according to claim 1, characterized in that: The plurality of inner support plates (204) form an inner cylindrical positioning model of the coil material (5), and the minimum diameter of the formed cylinder is smaller than the inner hole of the coil material prototype.

7. The horizontal passive unwinding device for metal tube according to claim 1, characterized in that: The base support (3) is provided with a support plate (302), and a support shaft (303) is provided on the support plate; the vertical shaft (201) in the support module (2) is a hollow shaft, and the vertical shaft and the support shaft cooperate.

8. The horizontal passive unwinding device for metal tube according to claim 7, characterized in that: A bearing is provided in the vertical shaft (201), and the vertical shaft is sleeved on the bracket shaft (303); a ball bearing is provided between the material platform (4) and the base bracket (3).

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