Self-rotation inlet guide device of straightening machine

Abstract

The utility model relates to a self-rotation inlet guide device of a straightening machine, and belongs to the technical field of straightening machines. Comprising a base, the base is fixed to the side face of a machine frame of the straightening machine, a plurality of bearing seats are arranged on the base and arranged at intervals in the advancing direction of bars, bearings are arranged in the bearing seats respectively, and a horizontally-arranged guide cylinder is arranged in the bearings in a full-length penetrating mode; the outlet of the guide cylinder is opposite to the inlet of the straightening machine. A guide section extending outwards is arranged at the inlet end of the guide cylinder, a guide hole is formed in the center of the guide section, and the guide hole and the guide channel are coaxially arranged; the inner diameter of the guide hole inlet is larger than that of the guide hole outlet, and the inner diameter of the guide hole outlet is matched with the inner diameter of the guide channel. Collision damage caused by round steel straightening is reduced; the service life is prolonged; and steel with bending exceeding the standard can be prevented, and accidents of straightening equipment are reduced.

Description

Technical Field

[0001] The utility model relates to a self-rotating inlet guide device of a straightening machine, belonging to the technical field of straightening machines. Background Art

[0002] The round steel produced by the high-temperature rolling line of the bar rolling mill is cooled from the rolling temperature to the normal temperature. Due to thermal expansion and contraction, or due to irregular stacking of the bars, the round steel is very likely to bend. If the bent round steel needs to be inspected, the round steel will bend beyond the standard and cannot meet the requirements of the flaw detector for the straightness of the incoming round steel. The flaw detection process cannot be carried out illegally, and the round steel must be straightened by the straightening machine. When the round steel is straightened, the round steel passes through the entrance slot and enters the straightening machine for straightening. During straightening, the round steel spirals forward, and the tail of the round steel rotates and swings, hitting the entrance slot, causing a large number of bumps and scratches on the round steel, which cannot meet the customer's requirements. If the round steel with bumps and scratches is inspected, it will be judged as a defective product, resulting in a decrease in the yield rate and a waste of cost. At present, the straightening entrance slot has the following disadvantages:

[0003] (1) During the straightening operation, the tail of the round steel swings and hits the entrance groove, causing the round steel to be bumped and damaged, which cannot meet customer requirements;

[0004] (2) Round steel with excessive curvature enters the straightening machine, damaging the main equipment of the straightening machine;

[0005] (3) The inlet trough is often hit by the round steel tail, so it wears quickly and has a short life, and needs to be replaced frequently. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a self-rotating inlet guide device of a straightening machine in view of the above-mentioned prior art, so as to reduce the bumps and scratches caused by round steel straightening; improve the service life; and prevent steel from bending beyond the standard, thereby reducing the occurrence of accidents of the straightening equipment.

[0007] The technical solution adopted by the utility model to solve the above-mentioned problem is: a self-rotating inlet guide device of a straightening machine, including a base, which is fixed to the side of the straightening machine frame, and a plurality of bearing seats are arranged on the base, and the plurality of bearing seats are arranged at intervals along the traveling direction of the rod, and bearings are respectively arranged in the bearing seats, and a horizontally arranged guide cylinder is penetrated through the entire length of the bearing; the guide cylinder outlet is arranged opposite to the straightening machine inlet.

[0008] The inner cavity of the guide cylinder serves as a guide channel, and the cross section of the guide channel is circular.

[0009] The inlet end of the guide cylinder has a guide section extending outward, a guide hole is provided at the center of the guide section, and the guide hole is coaxially arranged with the guide channel; the inner diameter of the guide hole inlet is larger than the inner diameter of the guide hole outlet, and the inner diameter of the guide hole outlet matches the inner diameter of the guide channel.

[0010] The inner diameter of the guide channel is 48 mm to 53 mm larger than the diameter of the rod.

[0011] Compared with the prior art, the utility model has the following advantages: a self-rotating inlet guide device for a straightening machine, a guide cylinder is fixed in a bearing seat through a bearing, and the bar is introduced into the straightening machine through the guide cylinder for straightening. During straightening, the bar advances spirally, and the tail of the round steel rotates and swings, so that the guide cylinder is forced to rotate synchronously in the bearing seat, avoiding collision between the bar and the guide cylinder during the straightening process, reducing the surface defects of the bar and improving the qualified rate of flaw detection, and on the other hand, improving the service life of the device.

[0012] The inner diameter of the guide channel is 50mm larger than the diameter of the rod, which prevents the rod with excessive bending from entering the guide channel, thus preventing the rod with excessive bending from entering the straightening machine and damaging the main equipment of the straightening machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a self-rotating inlet guide device of a straightening machine according to an embodiment of the utility model;

[0014] Figure 2 for Figure 1 Installation diagram;

[0015] In the figure, 1 is a guide cylinder, 1.1 is a guide channel, 1.2 is a guide section, 2 is a bearing seat, 3 is a bearing, 4 is a base, 5 is a fixing bolt, and 6 is a straightening machine. DETAILED DESCRIPTION

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] like Figure 1 , 2 As shown, a self-rotating inlet guide device of a straightening machine in this embodiment includes a base 4, which is fixed to the side of the frame of the straightening machine 6 by welding, and two bearing seats 2 are arranged on the base 4, and the two bearing seats 2 are arranged at intervals along the traveling direction of the bar, and the bearing seats 2 are fixed to the base 4 by fixing bolts 5. Bearings 3 are respectively arranged in the bearing seats 2, and a horizontally arranged guide cylinder 1 is passed through the two bearings 3, so that the guide cylinder 1 can rotate under force in the bearing seat 2. The outlet of the guide cylinder 1 is arranged opposite to the inlet of the straightening machine 6.

[0018] The inner cavity of the guide cylinder is used as the guide channel 1.1, and the cross section of the guide channel 1.1 is circular. The inlet end of the guide cylinder 1 has a guide section 1.2 extending outward, and a guide hole is provided in the center of the guide section 1.2, and the guide hole is arranged coaxially with the guide channel. The cross section of the guide hole is a horizontal funnel shape, and the inner diameter of the guide hole inlet is larger than the inner diameter of the guide hole outlet, and the inner diameter of the guide hole outlet matches the inner diameter of the guide channel. The guide hole facilitates the introduction of the moving rod into the guide channel, and then the rod enters the straightening main machine through the guide channel for straightening, thereby achieving the guidance of the rod.

[0019] The guide cylinder of the present application is fixed in the bearing seat through the bearing, and the bar is introduced into the straightening machine through the guide cylinder for straightening. During straightening, the bar spirals forward, and the tail of the round steel rotates and swings, so that the guide cylinder is forced to rotate synchronously in the bearing seat, avoiding the collision between the bar and the guide cylinder during the straightening process. On the one hand, it reduces the surface defects of the bar and improves the qualified rate of flaw detection, and on the other hand, it increases the service life of the device.

[0020] The inner diameter of the guide channel is 50mm larger than the diameter of the rod, which prevents the rod with excessive bending from entering the guide channel, thus preventing the rod with excessive bending from entering the straightening machine and damaging the main equipment of the straightening machine.

[0021] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A self-rotating inlet guide device for a straightening machine, characterized in that: It includes a base, which is fixed to the side of the straightening machine frame. The base is provided with a plurality of bearing seats, which are arranged at intervals along the traveling direction of the rod. Bearings are respectively arranged in the bearing seats, and a horizontally arranged guide cylinder is passed through the bearings; the guide cylinder outlet is arranged opposite to the straightening machine inlet.

2. The self-rotating inlet guide device of a straightening machine according to claim 1, characterized in that: The inner cavity of the guide cylinder serves as a guide channel, and the cross section of the guide channel is circular.

3. The self-rotating inlet guide device of a straightening machine according to claim 2, characterized in that: The inlet end of the guide cylinder has a guide section extending outward, a guide hole is provided at the center of the guide section, and the guide hole is coaxially arranged with the guide channel; the inner diameter of the guide hole inlet is larger than the inner diameter of the guide hole outlet, and the inner diameter of the guide hole outlet matches the inner diameter of the guide channel.

4. The self-rotating inlet guide device of a straightening machine according to claim 2, characterized in that: The inner diameter of the guide channel is 48 mm to 53 mm larger than the diameter of the rod.

Images