Surface pretreatment device for improving bar infrared flaw detection qualified rate

Abstract

The utility model relates to a surface pretreatment device for improving the bar infrared flaw detection qualification rate, and belongs to the technical field of bar flaw detection. The surface pretreatment device is arranged between two input rollers before infrared flaw detection, the surface pretreatment device comprises a base, a horizontally arranged shaft barrel is arranged on the base, and the shaft barrel is fixed on the base through a shaft barrel fixing seat; a hollow rotating shaft is arranged in the shaft barrel in a penetrating mode, the shaft barrel and the rotating barrel are fixedly connected through a bearing, and the two ends of the shaft barrel are covered with glands respectively. An inner cavity of the rotating shaft serves as a conveying channel of steel, a rotating shaft belt wheel is arranged at one end of the rotating shaft, a brush unit is arranged at the other end of the rotating shaft, the rotating shaft belt wheel is driven to rotate, the rotating shaft and the brush unit are driven to rotate, and the brush unit polishes the surface of the steel and then outputs the steel through the conveying channel. The device is convenient to operate, impurities such as residual iron oxide on the surface of the bar can be quickly cleaned, the infrared flaw detection qualification rate is increased, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to a surface pretreatment device for improving the qualified rate of infrared flaw detection of bars, belonging to the technical field of bar flaw detection. Background Art

[0002] Infrared flaw detection is a high-precision detection method. Its basic principle is that when a bar passes through a high-frequency induction coil, due to the skin effect of electromagnetic induction, an induced current will be generated on the surface of the bar, causing the temperature of the bar surface to rise. In the area where there are defects on the bar surface, the induced current is blocked by the defects, resulting in an increase in local resistance and generating more heat. Due to the residual iron oxide, large particle debris, etc. on the bar surface after the straightening process, the local resistance increases and false alarms occur, resulting in a decrease in the qualified rate of infrared flaw detection. Moreover, the treatment of defective products caused by false alarms requires a large additional cost. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a surface pretreatment device for improving the qualified rate of infrared flaw detection of bars for the above-mentioned existing technology. The operation is convenient, it can quickly clean the residual iron oxide and other debris on the bar surface, improve the qualified rate of infrared flaw detection, and reduce the production cost.

[0004] The technical solution adopted by the utility model to solve the above problems is: a surface pretreatment device for improving the qualified rate of infrared flaw detection of bars. The surface pretreatment device is arranged between two input rollers before infrared flaw detection. The surface pretreatment device includes a base. A horizontally arranged shaft cylinder is provided on the base. The shaft cylinder is fixed to the base through a shaft cylinder fixing seat. A hollow rotating shaft is inserted into the shaft cylinder. The shaft cylinder and the rotating shaft are fixedly connected through bearings. Pressing covers are respectively arranged at both ends of the shaft cylinder. The inner cavity of the rotating shaft serves as a conveying channel for steel. A rotating shaft pulley is arranged at one end of the rotating shaft, and a brush unit is arranged at the other end of the rotating shaft. Driving the rotation of the rotating shaft pulley drives the rotation of the rotating shaft and the brush unit. The brush unit grinds the surface of the steel and outputs it through the conveying channel.

[0005] The brush unit includes a brush fixture plate. A plurality of circumferentially evenly distributed brush fixtures are provided on the brush fixture plate. The plurality of brush fixtures enclose a grinding channel, and the grinding channel communicates with the conveying channel. Steel brushes are respectively arranged on the brush fixtures.

[0006] A motor is also provided on the base. A motor pulley is arranged on the output shaft of the motor. The motor pulley and the rotating shaft pulley are connected by a belt.

[0007] The base includes a first bottom plate and a second bottom plate. The second bottom plate is disposed above the first bottom plate, and the shaft cylinder is fixed to the second bottom plate. One end of the first bottom plate is hinged to one end of the second bottom plate, such that the second bottom plate can rotate around the hinge point. An adjustment hole is formed in the second bottom plate, and an adjustment nut is provided on the top surface of the second bottom plate corresponding to the adjustment hole. An adjustment screw sequentially passes through the adjustment nut and the adjustment hole, and the bottom of the adjustment screw is supported on the first bottom plate and then fixed by the adjustment nut.

[0008] A protective cover is disposed around the outside of the brush unit.

[0009] Compared with the prior art, the advantages of the present utility model are as follows: A surface pretreatment device for improving the qualified rate of infrared flaw detection of bars drives the rotation of a belt through a motor, drives the rotation of a rotating shaft and a brush fixture disc. When the bar passes through, the wire brush quickly grinds the surface of the steel, effectively removing sundries such as surface iron oxide. The application is convenient to operate, can quickly clean the sundries such as residual iron oxide on the surface of the bar, improves the qualified rate of infrared flaw detection, and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a front view of a surface pretreatment device for improving the qualified rate of infrared flaw detection of bars according to an embodiment of the present utility model;

[0011] Figure 2 is Figure 1 a top view of;

[0012] In the figure, 1 is a rotating shaft pulley, 2 is a gland, 3 is a bearing, 4 is a shaft cylinder fixing seat, 5 is an adjustment screw, 6 is a shaft cylinder, 7 is a brush fixture disc, 8 is a brush fixture, 9 is a rotating shaft, 10 is a motor, 11 is a first bottom plate, 12 is a second bottom plate, 13 is a motor pulley, and 14 is a wire brush. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The present utility model will be further described in detail below with reference to the embodiments in the drawings.

[0014] Such as Figure 1 、 2As shown in the figure, a surface pretreatment device for improving the qualification rate of infrared flaw detection of bars in this embodiment is arranged between two input rollers before infrared flaw detection. The surface of the steel wire is pretreated before infrared flaw detection. The surface pretreatment device includes a base. A horizontally arranged shaft cylinder 6 is provided on the base. The shaft cylinder 6 is fixed to the base through a plurality of shaft cylinder fixing seats 4, and the plurality of shaft cylinder fixing seats 4 are evenly distributed along the axial direction of the shaft cylinder 6. A hollow rotating shaft 9 is inserted into the shaft cylinder 6. The shaft cylinder 6 and the rotating shaft 9 are fixedly connected through a bearing 3. Pressing covers 2 are respectively arranged at both ends of the shaft cylinder 6. The inner cavity of the rotating shaft 9 serves as a conveying channel. A rotating shaft pulley 1 is arranged at one end of the rotating shaft 9, and a brush fixture disc 7 is arranged at the other end of the rotating shaft 9. A plurality of brush fixtures 8 evenly distributed in the circumferential direction are arranged on the brush fixture disc 7. The plurality of brush fixtures 8 enclose a grinding channel, and the grinding channel communicates with the conveying channel. Steel wire brushes 14 are respectively arranged on the brush fixtures 8. A motor 10 is also provided on the base. A motor pulley 13 is arranged on the output shaft of the motor 10. The motor pulley 13 is connected to the rotating shaft pulley 1 through a belt. The motor drives the motor pulley to rotate, and the belt and the rotating shaft pulley rotate synchronously, driving the rotating shaft and the brush fixture disc to rotate, so that the rotating steel wire brushes polish the surface of the steel.

[0015] A plurality of circumferentially evenly distributed sliding grooves are opened on the brush fixture disc. The brush fixtures are arranged in the corresponding sliding grooves. The brush fixtures can move along the brush fixture disc and are fixedly connected by bolts after moving into place, thereby adjusting the diameter of the grinding channel to meet steel of different diameters.

[0016] The above-mentioned base includes a first bottom plate 11 and a second bottom plate 12. The second bottom plate 12 is arranged above the first bottom plate 11. The shaft cylinder 6 is fixed to the second bottom plate 12. One end of the first bottom plate and one end of the second bottom plate are hinged, so that the second bottom plate can rotate around the hinge point, thereby adjusting the height of the shaft cylinder and the rotating shaft and adjusting the position of the grinding channel. An adjustment hole is opened on the second bottom plate 12, and an adjustment nut is arranged on the top surface of the second bottom plate. The adjustment nut corresponds to the adjustment hole. When the second bottom plate rotates into place, an adjustment screw 5 sequentially passes through the adjustment nut and the adjustment hole. After the bottom of the adjustment screw supports on the first bottom plate, it is fixed through the adjustment nut to realize the inclined arrangement of the second bottom plate.

[0017] A protective cover is arranged around the outside of the brush fixture disc, so that the steel wire brushes are arranged inside the protective cover. When the steel wire brushes polish the surface of the steel, it avoids the splashing of removed surface iron oxide and other sundries.

[0018] The above-mentioned motor is a three-phase reduction motor.

[0019] Driven by the motor, the belt drive rotates, driving the rotating shaft and the brush fixture disc to rotate. When the bar passes through, the steel wire brushes quickly polish the surface of the steel, effectively removing surface iron oxide and other sundries. The operation of this application is convenient, which can quickly clean the residual iron oxide and other sundries on the surface of the bar, improve the qualification rate of infrared flaw detection, and reduce the production cost.

[0020] In addition to the above embodiments, the present utility model also includes other implementation manners. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present utility model.

Claims

1. A surface pretreatment device for improving the qualified rate of infrared flaw detection of bars, characterized in that: The surface pretreatment device is arranged between two input rollers before infrared flaw detection, and the surface pretreatment device includes a base, a horizontally arranged shaft cylinder is provided on the base, and the shaft cylinder is fixed to the base through a shaft cylinder fixing seat; a hollow rotating shaft is passed through the shaft cylinder, and the shaft cylinder and the rotating shaft are fixedly connected through bearings, and pressure covers are respectively provided at both ends of the shaft cylinder; the inner cavity of the rotating shaft serves as a conveying channel for steel, a rotating shaft pulley is provided at one end of the rotating shaft, and a brush unit is provided at the other end of the rotating shaft, and the rotating shaft pulley is driven to rotate, thereby driving the rotating shaft and the brush unit to rotate, and the brush unit grinds the surface of the steel and then outputs it through the conveying channel.

2. A surface pretreatment device for improving the infrared flaw detection pass rate of a bar according to claim 1, characterized in that: The brush unit comprises a brush fixture disk, on which a plurality of brush fixtures evenly distributed in an annular direction are arranged, and the plurality of brush fixtures are arranged to form a grinding channel, and the grinding channel is connected with the conveying channel; and wire brushes are respectively arranged on the brush fixtures.

3. The surface pretreatment device for improving the infrared flaw detection pass rate of bars according to claim 1 is characterized in that: A motor is also provided on the base, a motor pulley is provided on the motor output shaft, and the motor pulley is connected to the rotating shaft pulley through a belt.

4. The surface pretreatment device for improving the infrared flaw detection pass rate of bars according to claim 1 is characterized in that: The base comprises a first bottom plate and a second bottom plate, the second bottom plate is arranged above the first bottom plate, and the shaft cylinder is fixed to the second bottom plate; one end of the first bottom plate and one end of the second bottom plate are hinged, so that the second bottom plate can rotate around the hinge point; An adjustment hole is provided on the second bottom plate, and an adjustment nut is provided on the top surface of the second bottom plate, and the adjustment nut corresponds to the adjustment hole; an adjustment screw passes through the adjustment nut and the adjustment hole in sequence, and the bottom of the adjustment screw is supported on the first bottom plate and fixed by the adjustment nut.

5. The surface pretreatment device for improving the infrared flaw detection pass rate of bars according to claim 1 is characterized in that: A protective cover is arranged around the outer side of the brush unit.

Images