A billet automatic feeding system

Abstract

The present invention relates to an automatic billet feeding system, comprising a feeding roller connected to a heating furnace, the feeding roller having a detection section and at least one feeding section, each of the feeding sections and the detection section being arranged in sequence along the feeding direction of the roller; a feeding platform is arranged on one side of the feeding section, and the feeding platform is connected with the corresponding feeding section through a steel moving machine; the detection section is provided with a billet specification detection mechanism, a waste billet platform is arranged on one side of the detection section, and a waste billet rejection device is provided on the detection section. The automatic billet feeding system provided by the present invention can realize the automatic feeding and automatic furnace feeding of billets, reduce the labor load of operators, and significantly improve production efficiency. The feeding roller is divided into a plurality of sections, each section is independent of each other and cooperates with each other, which can improve the smoothness and reliability of production; the detection section detects the specifications of the billets to ensure the compliance of the billets entering the furnace and avoid damage to the heating furnace.

Description

Technical Field

[0001] The invention belongs to the technical field of metallurgical production, and in particular relates to an automatic billet feeding system. Background Art

[0002] In the bar and profile line workshop, the continuous casting billet generally needs to be heated in a heating furnace before entering the rolling mill. Regardless of whether the hot delivery, hot loading or cold loading process is adopted, the rhythm of the billet entering the furnace is closely related to the hourly output of the heating furnace. The traditional billet entering the furnace operation is mostly performed manually by the operator, which affects the production efficiency. Summary of the invention

[0003] The invention relates to an automatic billet feeding system, which can at least solve some defects of the prior art.

[0004] The present invention relates to an automatic billet feeding system, comprising a feeding roller connected to a heating furnace, the feeding roller having a detection section and at least one feeding section, the feeding sections and the detection section being arranged in sequence along the feeding direction of the roller; a feeding platform is arranged on one side of the feeding section, the feeding platform is connected to the corresponding feeding section through a steel transfer machine; the detection section is provided with a billet specification detection mechanism, a waste billet platform is arranged on one side of the detection section, and a waste billet rejection device is provided on the detection section.

[0005] As one of the implementation modes, the steel billet specification detection mechanism includes a steel billet weighing unit and / or a steel billet length measuring unit.

[0006] As one of the implementation modes, a steel turning device is provided at the most downstream feeding section.

[0007] As one of the embodiments, the steel turning device includes a steel turning mechanism and a steel pushing mechanism; the steel pushing mechanism includes a steel pushing driving unit arranged on one side of the corresponding loading section and a steel pushing head for pushing the steel billet laterally to the steel turning position, and the steel pushing head is connected to the steel pushing driving unit; the steel turning mechanism includes a steel turning arm and a steel turning driving unit for driving the steel turning arm to swing up and down, wherein the swinging path of the steel turning arm passes through the steel turning position.

[0008] As one of the implementation modes, the portion of the steel turning arm used for supporting steel at the steel turning position is the steel turning part; the steel turning arm is provided with a V-shaped steel receiving groove, which is arranged close to the steel turning part and is located on the side of the steel turning part close to the swing axis.

[0009] As one of the implementation modes, the steel turning mechanism is provided with a first detection unit for detecting the position of the steel turning arm, and the steel pushing mechanism is provided with a second detection unit for detecting the position of the steel pushing head.

[0010] As one of the implementation modes, a billet arrival detection mechanism is provided at the output end of the loading platform.

[0011] As one of the embodiments, the billet arrival detection mechanism includes a sensing plate and a proximity switch, the sensing plate is hinged in the loading platform and the hinge axis is located below the platform conveying surface; in a natural state, the top end of the sensing plate extends above the platform conveying surface, and the proximity switch is located on the upper swing path of the bottom end of the sensing plate.

[0012] As one of the implementation modes, the feeding section and / or the detection section is equipped with a third detection unit for detecting whether there is a steel billet on its own roller table.

[0013] As one of the implementation modes, a fourth detection unit for detecting whether there is excessive steel is provided between the most downstream loading section and the detection section, and the fourth detection unit is interlockedly controlled with the roller drive mechanism of the detection section and the billet specification detection mechanism.

[0014] The present invention has at least the following beneficial effects:

[0015] The automatic billet feeding system provided by the present invention can realize automatic billet feeding and automatic furnace feeding, reduce the workload of operators, and significantly improve production efficiency. The feeding roller is divided into multiple sections, each section is independent of each other and cooperates with each other, which can improve production smoothness and reliability; the detection section detects the billet specifications to ensure the compliance of the billet entering the furnace and avoid damage to the heating furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of the automatic billet feeding system provided by an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the structure of a steel billet arrival detection mechanism provided by an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the structure of a steel pushing mechanism provided in an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the structure of a steel turning mechanism provided in an embodiment of the present invention;

[0021] Figure 5 A schematic structural diagram of a steel turning device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 An embodiment of the present invention provides an automatic billet feeding system, comprising a feeding roller 1 connected to a heating furnace, the feeding roller 1 having a detection section 12 and at least one feeding section 11, the feeding sections 11 and the detection section 12 are arranged in sequence along the conveying direction of the roller and are independently driven; a feeding platform 2 is arranged on one side of the feeding section 11, the feeding platform 2 is connected to the corresponding feeding section 11 through a steel moving machine 21; the detection section 12 is provided with a billet specification detection mechanism.

[0024] The above-mentioned detection section 12 is used to detect the specifications of the steel billet, such as detecting the length of the steel billet 8. Accordingly, the steel billet specification detection mechanism includes a steel billet length measuring unit, preferably a laser length measuring device, which has high measurement accuracy. For example, the weight of the steel billet 8 can also be detected. Accordingly, the steel billet specification detection laser includes a steel billet weighing unit, which preferably adopts a roller scale structure (that is, the roller is directly installed on the scale body), which has a simple structure and is easy to maintain.

[0025] Further preferably, a scrap stand 4 is arranged on one side of the detection section 12, and a scrap rejecting device is provided on the detection section 12; when the specifications of the steel billet do not meet the requirements, for example, when the length of the steel billet is too long, the scrap rejecting device performs a scrap rejecting operation, and the scrap billet is rejected to the scrap stand 4 and can be lifted away by an overhead crane. The above-mentioned scrap rejecting device is a conventional device in the field, and the specific structure is not described here.

[0026] Preferably, the feeding roller 1 has a plurality of feeding sections 11, each of which is connected in sequence along the feeding direction of the roller. Arranging a plurality of feeding sections 11 can form a plurality of raw material spans for billet feeding, which can better meet the production requirements. A lifting baffle 32 is provided between two adjacent feeding sections 11. When there is a billet 8 on the current feeding section 11, the lifting baffle 32 on the upstream side will rise to prevent the upstream billet 8 from being transported to the feeding section 11. In this embodiment, Figure 1 , two feeding sections 11 are provided, which can fully meet the product requirements.

[0027] Each feeding section 11 and detection section 12 is driven independently, that is, the feeding rollers of each section are respectively equipped with roller driving devices to ensure the functional independence of each section. For example, the detection section 12 can stop rotating to detect the specifications of the steel billet.

[0028] In addition, preferably, a fixed baffle 31 is provided at the starting end of the loading roller 1 (ie, the end away from the heating furnace) to prevent the roller from reversing and causing the steel billet 8 to rush out of the loading roller 1.

[0029] The loading platform 2 is used to supply the steel billet 8 to the corresponding loading section 11. In one embodiment, the loading platform 2 adopts an electric eccentric structure, and the main shaft crank rotates one circle to complete a stepping cycle. The above-mentioned steel transfer machine 21 is used to transfer the steel billet 8 at the end of the loading platform 2 to the adjacent loading section 11. In one embodiment, a flat steel transfer machine 21 is used to flatly lift the steel billet 8 on the loading platform 2 to the loading section 11. The billet is transported very smoothly without causing impact on the roller.

[0030] Further preferably, the output end of the loading platform 2 is provided with a steel billet arrival detection mechanism. When the steel billet arrival detection mechanism detects that the steel billet is in place, the steel moving machine 21 performs the steel moving operation, which is convenient for realizing automatic loading. For example, the steel billet arrival detection mechanism transmits the detection signal to the central control machine, and the central control machine guides the action of the steel moving machine 21 after analyzing the detection signal.

[0031] In one embodiment, if Figure 2 The billet arrival detection mechanism includes a sensing plate 71 and a proximity switch 72. The sensing plate 71 is hinged in the loading platform 2 and the hinge axis is located below the platform conveying surface. In a natural state, the top of the sensing plate 71 extends above the platform conveying surface, and the proximity switch 72 is located on the upper swing path of the bottom end of the sensing plate 71. The sensing plate 71 is arranged in a seesaw structure. The weight of the plate above the hinge axis is less than the weight of the plate below the hinge axis. Under the action of its own weight and without other constraints, the sensing plate 71 naturally droops (for example, the plate surface is parallel to the vertical direction). Since the top of the sensing plate 71 extends above the platform conveying surface, when the loading platform 2 conveys the billet 8, the top of the sensing plate 71 will interfere with the billet 8, and the billet 8 will drive the sensing plate 71 to rotate around the hinge axis, so that the bottom end of the sensing plate 71 swings upward to approach the proximity switch 72, so that the billet arrival signal can be sent through the proximity switch 72. The above detection method has a simple structure and high reliability, and utilizes the power of the billet conveyor itself to detect whether the billet is in place. It does not require additional active energy consumption and has low cost.

[0032] Furthermore, when the steel billet 8 is transmitted to the output end of the loading platform 2, the top of the induction plate 71 is flush with the platform conveying surface. This requirement can be met by setting the hinge position and the length of the induction plate 71 above the hinge, and the position of the proximity switch 72 can be selected accordingly.

[0033] Furthermore, if Figure 2The top of the sensing plate 71 is shaped like a bird's head with its mouth protruding toward the steel side. Based on the force characteristics of the seesaw, the above design can effectively reduce the force required for the sensing plate 71 to swing, so that the sensing plate 71 is easy to swing under the push of the steel billet 8.

[0034] In one embodiment, a steel turning device 5 is provided at the most downstream feeding section 11, which can determine whether steel turning is required according to the state of the steel billet. The judgment can be made manually by the operator, or a steel billet shape detection device can be set on site to collect the state of the steel billet for automatic judgment; the state of the steel billet includes the degree of bending of the steel billet, etc. By providing the steel turning device 5, the bent steel that can be safely put into the furnace after turning does not need to be rejected, thereby reducing the amount of waste billets and improving the yield rate.

[0035] Preferably, if Figure 3-Figure 5 The steel turning device 5 includes a steel turning mechanism and a steel pushing mechanism; the steel pushing mechanism includes a steel pushing driving unit 51 arranged on one side of the corresponding loading section 11 and a steel pushing head 52 for pushing the steel billet 8 laterally to the steel turning position, and the steel pushing head 52 is connected to the steel pushing driving unit 51; the steel turning mechanism includes a steel turning arm 53 and a steel turning driving unit 54 for driving the steel turning arm 53 to swing up and down, wherein the swinging path of the steel turning arm 53 passes through the steel turning position.

[0036] Among them, the steel pushing drive unit 51 can adopt a linear drive device, such as a hydraulic cylinder, a pneumatic cylinder, etc.; the steel pushing head 52 is driven by the steel pushing drive unit 51 to make horizontal linear motion and the movement direction is parallel to the axial direction of the loading roller. The steel pushing head 52 is preferably flush with the roller conveying surface or slightly higher than the roller conveying surface, and can smoothly push the steel billet 8 laterally.

[0037] The above-mentioned steel turning arm 53 is hinged between two adjacent feeding rollers, which is convenient for arrangement and will not interfere with the feeding roller 1; the hinge point of the steel turning arm 53 is located below the conveying surface of the roller. The above-mentioned steel turning drive unit 54 can adopt a conventional swing drive device, for example, it adopts a linear drive device such as a cylinder, a hydraulic cylinder, etc., the cylinder body is hinged on the workshop foundation and the output end is hinged with the steel turning arm 53.

[0038] Define the part of the steel turning arm 53 used for supporting the steel at the steel turning position as the steel turning part, then the swinging path of the steel turning part passes through the steel turning position; the steel turning part is preferably the end of the steel turning arm 53, and the driving force required for turning the steel is relatively small. The steel turning part has a standby position located below the roller conveyor surface, a steel supporting position flush with the roller conveyor surface, and a steel placing position located above the roller conveyor surface. When the steel turning part is swung up to the steel placing position, the steel billet 8 will fall along the steel turning arm 53 under the action of its own weight. Among them, when the steel billet 8 falls, the turned over steel billet 8 can be received by the loading roller 1, and the falling distance of the steel billet limited between the steel placing position and the roller conveyor surface in this state can be used to achieve the effect of controlling the turning angle of the steel billet, generally, the steel billet 8 can be turned 90°; in another embodiment, such as Figure 4 A V-shaped steel receiving groove 531 is provided on the steel turning arm 53. The steel receiving groove 531 is arranged close to the steel turning part and is located on the side of the steel turning part close to the swing axis (that is, the swing axis of the turning arm). When the billet 8 falls, the steel receiving groove 531 can receive the turned-over billet 8. When the turning arm swings down, the billet 8 in the steel receiving groove 531 is placed on the roller. By setting the steel receiving groove 531, the billet 8 can be accurately received, the accuracy of the steel turning angle is guaranteed, and the impact of the billet 8 on the roller and other equipment is reduced.

[0039] Furthermore, the angle of the V-shaped steel receiving groove 531 on the above-mentioned steel turning arm 53 is preferably 90°, that is, the intersection angle between the two groove walls of the steel receiving groove 531 is 90°, which can reliably and accurately perform steel turning operations on square billets and other shaped bars.

[0040] More preferably, if Figure 5 The steel turning mechanism and the steel pushing mechanism are integrated and installed on the same base 55 for easy layout. The base 55 is arranged on one side of the feeding roller 1. The linear stroke of the steel pushing head 52, the length of the steel turning arm 53 and the swing stroke can meet the steel turning requirements.

[0041] Furthermore, when multiple groups of steel turning devices 5 are coordinated, the steel turning operation can be completed more stably and reliably, especially for steel billets 8 of a certain length, and the accuracy of the steel turning operation can be improved; each steel turning device 5 is arranged at intervals. In this embodiment, two groups of steel turning devices 5 are used.

[0042] Based on the above-mentioned steel turning device 5, continuous steel turning operation can be realized, so that the steel billet 8 can be turned 90°, 180° and 270°, with high flexibility, and improved steel billet feeding rate and yield rate.

[0043] Preferably, a steel turning roller 532 is provided at the above-mentioned steel turning part, and the axis of the steel turning roller 532 is parallel to the axis of the swing shaft. The steel turning roller 532 can be a small roller with a diameter smaller than the width of the steel billet; the above-mentioned steel turning roller 532 is used as a steel turning fulcrum, which can ensure that the horizontal component of the tipping force during the upward swing of the steel turning arm 53 is smaller than the friction between the steel billet 8 and the steel turning roller 532, thereby preventing the steel billet 8 from running away (that is, the steel billet 8 leaves the steel turning arm 53 or the loading roller).

[0044] Furthermore, the steel turning mechanism is provided with a first detection unit for detecting the position of the steel turning arm 53, and the steel pushing mechanism is provided with a second detection unit for detecting the position of the steel pushing head 52. Both the first detection unit and the second detection unit can adopt position detection devices such as proximity switches. By detecting the position of the steel turning arm 53 and the position of the steel pushing head 52, the interlocking and coordinated operation between the steel turning mechanism and the steel pushing mechanism can be realized, so that the steel pushing and steel turning actions can be completed in one go.

[0045] In one embodiment, the feeding section 11 and / or the detection section 12 are equipped with a third detection unit for detecting whether there is a steel billet 8 on the roller. The third detection unit can be a detection device such as a hot and cold metal detector. Based on this design, the smoothness and reliability of the system operation can be improved; when it is detected that there is no steel on the feeding section 11, the feeding stand 2 can supply the steel billet 8 to the feeding section 11; when it is detected that there is steel on the detection section 12, the steel billet specification detection mechanism is used for detection, which can reduce energy consumption and improve the reliability of the steel billet specification detection data.

[0046] As one of the implementation methods, a fourth detection unit for detecting whether there is excessive steel is provided between the most downstream feeding section 11 and the detection section 12, and the fourth detection unit is interlocked with the roller drive mechanism of the detection section 12 and the billet specification detection mechanism. The fourth detection unit can use detection devices such as hot and cold metal detectors. Based on this design, after the fourth detection unit determines that the tail of the billet enters the detection section 12, the detection section 12 stops rotating and detects the billet specifications, which can improve the accuracy and reliability of the billet specification detection data.

[0047] In addition, optionally, a steel number scanning device 6 is arranged near the feeding roller 1 to scan the material number of the end of the steel billet and transmit it to the secondary control system of the factory to track the steel billet 8 in real time and guide production management. The steel scanning device 6 can be arranged in the feeding section 11 or in the detection section 12.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A billet automatic feeding system, characterized in that: It comprises a feeding roller connected with the heating furnace, the feeding roller has a detection section and at least one feeding section, and the feeding sections and the detection section are arranged in sequence along the feeding direction of the roller; a feeding platform is arranged on one side of the feeding section, and the feeding platform is connected with the corresponding feeding section through a steel transfer machine; the detection section is provided with a steel billet specification detection mechanism, a waste billet platform is arranged on one side of the detection section, and a waste billet rejection device is provided on the detection section; A steel turning device is provided at the most downstream feeding section; The steel turning device comprises a steel turning mechanism and a steel pushing mechanism; the steel pushing mechanism comprises a steel pushing driving unit arranged on one side of the corresponding feeding section and a steel pushing head for pushing the steel billet laterally to the steel turning position, and the steel pushing head is connected to the steel pushing driving unit; the steel turning mechanism comprises a steel turning arm and a steel turning driving unit for driving the steel turning arm to swing up and down, wherein the swinging path of the steel turning arm passes through the steel turning position; The part of the steel turning arm used for supporting the steel at the steel turning position is the steel turning part; the steel turning arm is provided with a V-shaped steel receiving groove, the steel receiving groove is arranged close to the steel turning part and is located on the side of the steel turning part close to the swing axis; A steel turning roller is provided at the steel turning part, and the axis of the steel turning roller is parallel to the axis of the swing shaft. The steel turning roller is a small roller with a diameter smaller than the width of the steel billet. The steel turning roller is used as a fulcrum for steel turning to ensure that the horizontal component of the tipping force during the upward swing of the steel turning arm is smaller than the friction between the steel billet and the steel turning roller.

2. The automatic billet feeding system according to claim 1, characterized in that: The steel billet specification detection mechanism includes a steel billet weighing unit and / or a steel billet length measuring unit.

3. The automatic billet feeding system according to claim 1, characterized in that: The steel turning mechanism is provided with a first detection unit for detecting the position of the steel turning arm, and the steel pushing mechanism is provided with a second detection unit for detecting the position of the steel pushing head.

4. The automatic billet feeding system according to claim 1, characterized in that: The output end of the loading platform is provided with a steel billet arrival detection mechanism.

5. The automatic billet feeding system according to claim 4, characterized in that: The billet arrival detection mechanism includes a sensing plate and a proximity switch. The sensing plate is hinged in the loading platform and the hinge axis is located below the platform conveying surface. In a natural state, the top end of the sensing plate extends above the platform conveying surface, and the proximity switch is located on the upper swing path of the bottom end of the sensing plate.

6. The automatic billet feeding system according to claim 1, characterized in that: The feeding section and / or the detection section is equipped with a third detection unit for detecting whether there is a steel billet on the roller table.

7. The automatic billet feeding system according to claim 1, characterized in that: A fourth detection unit for detecting whether there is excessive steel is provided between the most downstream feeding section and the detection section. The fourth detection unit is interlocked with the roller drive mechanism of the detection section and the steel billet specification detection mechanism.

Images