Vertical feeding turnover device in cold-rolled steel bar production

Abstract

A vertical feeding turnover device in cold-rolled steel bar production comprises a base and a turnover seat, a mandrel is fixedly connected to the turnover seat, a horizontal shaft is rotatably connected to the base, the horizontal shaft is connected with a rotation driving mechanism, a rotating arm is fixedly connected to the horizontal shaft, and the turnover seat is fixedly connected to the rotating arm. The gravity center of the overturning seat, the mandrel and the rotating arm after fixed connection is located on the rotating shaft. According to the turnover device, oxide skin cleaning is convenient, production is not affected, and turnover can be achieved with the minimum power consumption.

Description

Technical Field

[0001] The utility model relates to the production of cold-rolled steel bars, in particular to vertical feeding equipment in the production of cold-rolled steel bars, belonging to the technical field of equipment. Background Art

[0002] Cold-rolled ribbed steel bars are all produced using hot-rolled coils as raw materials. The feeder is an essential equipment in the cold-rolled ribbed steel bar production line. Its main function is to pull the hot-rolled raw materials into straight strips and remove the oxide scale on the surface before sending them to the subsequent rolling equipment. According to the structural form, the feeder is generally divided into two types: horizontal and vertical. The vertical feeder is in a vertical state (vertical) when working. The head of the steel bar is pulled from the top of the coil to straighten the steel bar, and then it is turned downward through the pulley set at a high place and then enters the subsequent rolling equipment. At this time, the self-gravity of the steel bar can be used to avoid most of the winding failures. Therefore, the vertical feeder is suitable for higher operating speeds and is more widely used. The raw material coils are in a horizontal state (horizontal) when transporting and stacking in the warehouse. Therefore, the vertical feeder is generally equipped with a flipping device to flip the raw material coils from horizontal to vertical. In order to achieve continuous production, the vertical feeder is generally equipped with two flipping devices side by side horizontally, so that one can unwind and the other can load alternately to achieve continuous production. The main structure of the existing turning device is shown in Figure 5 The turning seat 5 is hinged on the base and can be turned 90 degrees under the action of the hydraulic cylinder 8. A mandrel 6 is also fixed on the turning seat, and the steel coil is sleeved on the mandrel during operation. The main problem with the existing turning device is that it is not easy to clean the oxide scale. Because when the steel bar is straightened and passes through the pulley on the upper part of the turning device, most of the oxide scale on the surface of the steel bar will fall off in the form of dust after the bending and friction of the pulley and fall onto the turning device below. In particular, the base of the current turning device is a box-shaped structure with an upward opening. The fallen oxide scale may fall into the box, which increases the difficulty of cleaning the oxide scale. The weight of the oxide scale on the surface of the hot-rolled coil is generally 5-8‰. If a production line produces 100 tons a day, about 600-700 kilograms of oxide scale will be produced. Therefore, in production practice, production should be stopped regularly to clean the oxide scale in the base of the turning device and other parts to avoid too much accumulation affecting the operation of the equipment. Summary of the invention

[0003] The utility model aims to overcome the above problems existing in the current vertical feeding of cold-rolled steel bars, and provides a vertical feeding and turning device in the production of cold-rolled steel bars.

[0004] To achieve the purpose of the utility model, the following technical scheme is adopted: a vertical loading and turning device in the production of cold-rolled steel bars, including a base and a turning seat, a core shaft is fixedly connected to the turning seat, a horizontal axis is rotatably connected to the base, the horizontal axis is connected to a rotating drive mechanism, a rotating arm is fixedly connected to the horizontal axis, and the turning seat is fixedly connected to the rotating arm.

[0005] Furthermore, the center of gravity of the flip seat, the core shaft and the rotating arm after being fixedly connected is located on the rotating axis.

[0006] Furthermore, a plurality of circles of screw holes are arranged on the outer circumference of the core shaft, each circle of screw holes is composed of at least three screw holes, and the at least three screw holes are located on the same circumference with the axis of the core shaft as the center, and the screw holes are evenly distributed on the same circumference, and a screw rod is matched with the screw holes.

[0007] Furthermore, the outer end surface of the screw has a recessed clamping portion.

[0008] The positive and beneficial technical effect of the utility model is that the turning device is convenient for cleaning oxide scale, does not affect production, and can turn with minimum power consumption, which is explained in detail in conjunction with the specific implementation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the front and rear directions of the device.

[0010] Figure 2 It is a schematic side view of the vertical structure of the device.

[0011] Figure 3 It is a horizontal schematic diagram of the device.

[0012] Figure 4 It is a schematic diagram of the screw hole on the mandrel.

[0013] Figure 5 It is a schematic diagram of an existing flipping device. DETAILED DESCRIPTION

[0014] In order to more fully explain the implementation of the utility model, implementation examples of the utility model are provided. These implementation examples are only for the purpose of illustrating the utility model and do not limit the scope of the utility model.

[0015] The utility model is further explained in detail in conjunction with the accompanying drawings, in which the marks are: 1: base; 2: horizontal axis; 3: driving mechanism; 4: rotating arm; 5: turning seat; 6: core shaft; 7: material roll; 8: hydraulic cylinder; 61: screw; 62: clamping part.

[0016] As shown in the attached drawings, the vertical loading and turning device in the production of cold-rolled steel bars includes a base 1 and a turning seat 5. The core shaft 7 is fixedly connected to the turning seat 5. A horizontal axis 2 is rotatably connected to the base 1. The horizontal axis is connected to a rotating drive mechanism. The rotating drive mechanism is a well-known mechanism. For example, a motor can be used to drive a reducer. The horizontal axis 2 is fixedly connected to the output shaft of the reducer. It can also be driven by a hydraulic motor. A swivel arm 6 is fixedly connected to the horizontal axis. The turning seat 5 is fixedly connected to the swivel arm 4. The center of gravity of the turning seat, the core shaft, and the swivel arm after being fixedly connected is located on the rotating axis.

[0017] As a further improvement, multiple circles of screw holes are provided on the outer circumference of the core shaft, and each circle of screw holes is composed of at least three screw holes. The at least three screw holes are located on the same circumference with the axis of the core shaft as the center. The screw holes are evenly distributed on the same circumference, and a screw rod 61 is matched with the screw hole. The outer end surface of the screw rod 61 has a recessed clamping portion 62. In this embodiment, the recessed clamping portion is a blind hole with a hexagonal circumference, which can be adapted to a hexagonal wrench. The purpose of setting the screw rod is to support the material roll 7. When the screw rods on the same circle are radially rotated out, they can support the bottom of the material roll. Therefore, when the screw rods on different circles are extended, the bottom of the material roll can be supported at different heights. Because the heights of material rolls of different specifications are different, their center of gravity positions are also different. This is to adjust the height of the bottom of the material roll so that the center of gravity of the whole composed of the flip seat, core shaft, rotating arm, and material roll under heavy load can also be located on the rotating axis or as close to the rotating axis as possible. In this way, the flip seat can be driven to flip with minimal power. Figure 4 There are 3 circles of screw holes in it, and the flip seat can support the material roll at four different heights to adapt to four different material roll specifications. The number of screw holes can be more. If the screw is not long enough or in order to better protect the screw, the screw tube can be screwed on the outside of the screw through the thread.

[0018] After describing the implementation mode of the utility model in detail, people familiar with the technology can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the scope of the technical solution of the utility model, and the utility model is not limited to the implementation mode of the examples given in the specification.

Claims

1. A vertical loading and turning device in the production of cold-rolled steel bars, comprising a base and a turning seat, with a mandrel fixedly connected to the turning seat, characterized in that: A horizontal shaft is rotatably connected to the base, the horizontal shaft is connected to a rotation driving mechanism, a rotating arm is fixedly connected to the horizontal shaft, and the flip seat is fixedly connected to the rotating arm.

2. The vertical loading and turning device in the production of cold-rolled steel bars according to claim 1 is characterized in that: The center of gravity of the turning seat, the core shaft and the rotating arm after being fixedly connected is located on the rotating shaft.

3. The vertical loading and turning device in the production of cold-rolled steel bars according to claim 1 is characterized in that: A plurality of circles of screw holes are arranged on the outer circumference of the core shaft, each circle of screw holes is composed of at least three screw holes, the at least three screw holes are located on the same circumference with the core shaft axis as the center, the screw holes are evenly distributed on the same circumference, and screw rods are matched with the screw holes.

4. The vertical loading and turning device in the production of cold-rolled steel bars according to claim 3 is characterized in that: The outer end surface of the screw rod is provided with a recessed clamping portion.

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