Device for automatically separating continuous casting billet from dummy bar

Abstract

The utility model discloses an automatic separating device for a continuous casting billet and a dummy bar, which is characterized by comprising a roller way, the roller way comprises a roller way support beam and a plurality of conveying roller ways, the automatic separating device further comprises a liftable free roller way, rotary arms are symmetrically arranged on two sides of the roller way support beam, one end of each rotary arm is connected with the support beam through a support, and the other end of each rotary arm is connected with the dummy bar. The two ends of the free roller way are rotationally matched with the other ends of the two rotating arms through pin shafts respectively; the hydraulic cylinder is used for controlling the rotary displacement of the rotary arm; two ends of the hydraulic cylinder are respectively matched with the roller bed supporting beam and the rotary arm through a hydraulic cylinder base and a hydraulic cylinder head seat; a buffering device matched with the rotating arm is further arranged below the free roller way. According to the automatic separation device, automatic separation of the continuous casting billet and the dummy bar is achieved, manual intervention is reduced in the process, production efficiency and continuity are improved, and product quality and operation safety are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of metallurgical continuous casting equipment, and particularly relates to a device for realizing the stable and automatic separation of a continuous casting billet and a dummy bar during the continuous casting production process. Background Art

[0002] During the continuous casting production process, the dummy bar, as a key component for guiding the continuous casting billet into the mold, its separation from the continuous casting billet is an important link to ensure production continuity and product quality. Traditional manual or mechanical-assisted separation methods have problems such as low efficiency, complex operation, and easy damage to the continuous casting billet. Therefore, it is of great significance to develop an efficient and automated device for separating the continuous casting billet and the dummy bar. Utility Model Content

[0003] The purpose of the present utility model is to provide an automatic separation device for a continuous casting billet and a dummy bar to solve the problems in the prior art.

[0004] The present utility model is realized through the following technical solutions: An automatic separation device for a continuous casting billet and a dummy bar, characterized in that:

[0005] It includes a roller table, the roller table includes a roller table support beam and a plurality of conveying roller tables, and further includes a liftable free roller table. Rotary arms are symmetrically arranged on both sides of the roller table support beam. One end of the rotary arm is connected to the support beam through a support, and both ends of the free roller table are respectively rotationally matched with the other ends of the two rotary arms through pin shafts; it also includes a hydraulic cylinder for controlling the rotary displacement of the rotary arm, and both ends of the hydraulic cylinder are respectively matched with the roller table support beam and the rotary arm through a hydraulic cylinder base and a hydraulic cylinder head seat; a buffer device matched with the rotary arm is also arranged at the position below the free roller table.

[0006] Further: A switch trigger is provided on the rotary arm, and a proximity switch A and a proximity switch B are arranged on the roller table support beam, which respectively correspond to the initial position and the end position of the switch trigger.

[0007] Further: It also includes a photoelectric switch for detecting the position of the dummy bar, and the photoelectric switch is fixed on the ground through a column and is matched with the dummy bar.

[0008] Further: Baffles are arranged on the outer sides of the pin shaft connection parts at both ends of the hydraulic cylinder.

[0009] Further: It also includes a grid plate, and the grid plate is arranged behind the free roller table and is welded and fixed to the roller table support beam on both sides.

[0010] The beneficial effects of the present utility model are as follows: The present utility model not only realizes the automatic separation of the continuous casting billet and the dummy bar, reduces manual intervention in the process, improves production efficiency and continuity, but also can achieve precise control of the separation through the hydraulic cylinder and proximity switches, reduces damage and deformation of the continuous casting billet in the process, and improves product quality. At the same time, it avoids equipment damage accidents or production accidents caused by improper operation of traditional manual or mechanical assisted separation methods, and ensures production safety. Brief Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0012] Figure 2 It is a top view of the working schematic diagram of the device of the present utility model;

[0013] Figure 3 It is a schematic diagram of a partial structure of the present utility model;

[0014] Figure 4 It is a schematic diagram of the connection between the continuous casting billet and the dummy bar in the device of the present utility model.

[0015] Among them, 1 - slewing arm, 2 - support, 3 - pin shaft, 4 - roller table support beam, 5 - hydraulic cylinder, 6 - hydraulic cylinder base, 7 - hydraulic cylinder head seat, 8 - baffle, 9 - switch trigger, 10 - proximity switch A, 11 - proximity switch B, 12 - bearing seat, 13 - free roller table, 14 - protective cover, 15 - grille plate, 16 - buffer device, 17 - photoelectric switch, 18 - column, 19 - continuous casting billet, 20 - dummy bar. Detailed Description of the Preferred Embodiment

[0016] As Figures 1-4 shown, it is an automatic separation device for the continuous casting billet and the dummy bar of the structure of the present utility model, which includes a slewing arm 1 and a support 2 fixed on the roller table support beam 4 connected by a pin shaft 3, and a hydraulic cylinder 5 for controlling the rotational displacement of the slewing arm 1; both ends of the hydraulic cylinder 5 are respectively connected to a hydraulic cylinder head seat 7 fixed at the lower end of the slewing arm 1 and a hydraulic cylinder base 6 fixed on the roller table support beam 4; the bearing seat 12 is fixed at the upper end of the slewing arm 1 by bolts, and the free roller table 13 is installed in the bearing seat 12.

[0017] Preferably: The bottom of the support 2 is fixed to the roller table support beam 4 by bolts.

[0018] Preferably: A protective cover 14 is provided outside the bearing seat 12 to prevent the bearing seat 12 from being polluted by the working environment.

[0019] Preferably: Baffles 8 are provided on the outer sides of the pin shaft connection parts at both ends of the hydraulic cylinder to prevent the pin shaft connection parts from being polluted by substances such as dust.

[0020] Preferably, it further includes proximity switch A 10 and proximity switch B 11. The two sets of proximity switches are welded to the roller track support beam 4 through mounting brackets, and are used to detect and determine the displacement of the switch trigger 9 that cooperates with the proximity switches, so as to control the stop of the action of the hydraulic cylinder 5.

[0021] Preferably, it further includes a buffer device 16. The buffer device 16 is installed on the roller track support beam 4 and is located directly below the lower end of the swing arm 1.

[0022] Preferably, it further includes a grating plate 15. The two sides of the grating plate 15 are welded and fixed to the roller track support beam 4, and it is arranged on the right side of the free roller track 13.

[0023] Preferably, it further includes a photoelectric switch 17. The photoelectric switch 17 is fixed on the ground through a column 18 and is used to detect and determine the movement position of the dummy bar 20, so as to control the start of the hydraulic cylinder 5.

[0024] Preferably, it further includes a motor 21. The motor 21 is connected and installed to the roller track to control the roller track speed.

[0025] The following further illustrates this solution through embodiments in combination with the usage process as follows.

[0026] Embodiment: An automatic separation device for continuous casting billets and dummy bars, which is mainly applied to the process of guiding the continuous casting billets during the initial transportation of continuous casting billets by the dummy bar, and can realize the automatic separation of the dummy bar and the continuous casting billet. It includes a rotating arm 1, a support 2, a pin shaft 3, a roller track support beam 4, a hydraulic cylinder 5, a hydraulic cylinder base 6, a hydraulic cylinder head seat 7, a baffle 8, a switch trigger 9, a proximity switch A 10, a proximity switch B 11, a bearing seat 12, a free roller track 13, a protective cover 14, a grid plate 15, a buffer device 16, a photoelectric switch 17, a column 18, a continuous casting billet 19, a dummy bar 20, and a motor 21. The support 2 fixed on the roller track support beam 4 is connected to the rotating arm 1 through the pin shaft 3. The bearing seat 12 equipped with the free roller track 13 is fixed to the upper end of the rotating arm 1 by bolts. A protective cover 14 is arranged outside the bearing seat 12 to prevent the bearing seat 12 from being polluted by the working environment. The lower end of the rotating arm 1 is fixed with a hydraulic cylinder head seat 7. The hydraulic cylinder head seat 7 is connected to the top end of the hydraulic cylinder 5. The other end of the hydraulic cylinder 5 is connected to the hydraulic cylinder base 6 fixed on the roller track support beam 4 through a pin shaft. Baffles 8 are arranged on the outer sides of the pin shaft connection points at both ends of the hydraulic cylinder to prevent the pin shaft connection points from being polluted by substances such as dust. To accurately and automatically position the stroke of the rotating arm 1 and the hydraulic cylinder 5, a proximity switch A 10 and a proximity switch B 11 are arranged on the roller track support beam 4. At the same time, a switch trigger 9 cooperating with the proximity switch is arranged on the rotating arm 1. When the switch trigger 9 is within the sensing range of the proximity switch A 10 and the proximity switch B 11, the hydraulic cylinder 5 will immediately stop operating. To prevent the rotating arm 1 from damaging itself or devices such as the roller track support beam 4 due to gravity during the falling process, a buffer device 16 is installed on the roller track support beam 4. The buffer device is a spring or a damper, etc. To prevent the dummy bar 20 from falling into the pit after being separated from the continuous casting billet 19, a grid plate 15 welded to the roller track support beam 4 is arranged behind the free roller track 13 (in the advancing direction of the slab) to receive the separated dummy bar. Photoelectric switches 17 fixed to the ground through columns 18 are arranged on both sides of the roller track. The photoelectric switches cooperate with the dummy bar (or a position indicating baffle corresponding to the photoelectric switch on the dummy bar, etc.) to detect and determine the movement position of the dummy bar 20. The roller track is connected to the motor 21 to control the speed of the roller track in the rear area.

[0027] When the continuous casting machine starts production, the dummy bar 20 guides the continuous casting slab 19 to be conveyed on the roller table. When the dummy bar 20 runs into the detection range of the photoelectric switch 17, at this time, the connection between the dummy bar 20 and the continuous casting slab 19 is at a certain distance in front of the free roller table 13 (in the incoming material direction). At this time, the motor 21 drives the roller table to decelerate, and at the same time, the control hydraulic cylinder 5 is started. The swing arm 1, the bearing seat 12, the free roller table 13, and the switch trigger 9 will rotate counterclockwise upward around the pin connection of the support 2 as the center point with the elongation of the rod end of the hydraulic cylinder 5. When the switch trigger 9 rotates into the induction range of the proximity switch B 11, the hydraulic cylinder 5 stops working. At this time, the connection between the dummy bar 20 and the continuous casting slab 19 is separated due to the rising of the free roller table 13, realizing the automatic separation action of the dummy bar. After a short stay, the hydraulic cylinder 5 retracts. When the switch trigger 9 rotates into the induction range of the proximity switch A 10, the hydraulic cylinder 5 stops working again, and the automatic separation dummy bar device returns to the initial state.

[0028] The structure of the utility model can not only realize the automatic separation of the continuous casting slab and the dummy bar, reduce manual intervention in the process, improve production efficiency and continuity, but also realize the automatic and accurate positioning of the separation device through the photoelectric switch and the proximity switch, avoiding equipment damage accidents or production accidents caused by improper operation of traditional manual or mechanical auxiliary separation methods, and ensuring production safety.

Claims

1. An automatic separation device for continuous casting billets and dummy bars, characterized in that: It includes a roller path, the roller path includes a roller path support beam (4) and a plurality of conveying roller paths, and further includes a liftable free roller path (13). Rotary arms (1) are symmetrically arranged on both sides of the roller path support beam (4). One end of the rotary arm (1) is connected to the support beam (4) through a support (2). The two ends of the free roller path (13) are respectively rotationally matched with the other ends of the two rotary arms (1) through a pin shaft (3). It further includes a hydraulic cylinder (5) for controlling the rotary displacement of the rotary arm (1). The two ends of the hydraulic cylinder (5) are respectively matched with the roller path support beam (4) and the rotary arm (1) through a hydraulic cylinder base (6) and a hydraulic cylinder head seat (7). A buffer device (16) matched with the rotary arm (1) is further arranged at the position below the free roller path (13).

2. An automatic separating device for continuous casting billets and dummy bars according to claim 1, characterized in that: A switch trigger (9) is arranged on the rotary arm (1). A proximity switch A (10) and a proximity switch B (11) are arranged on the roller path support beam (4), and the two respectively correspond to the initial position and the end position of the switch trigger (9).

3. An automatic separating device for continuous casting billets and dummy bars according to claim 1, characterized in that: It further includes a photoelectric switch (17) for detecting the position of the dummy bar (20). The photoelectric switch (17) is fixed on the ground through a column (18) and is matched with the dummy bar (20).

4. An automatic separation device for a continuous casting billet and a dummy bar according to claim 1, characterized in that: Baffles (8) are arranged on the outer sides of the pin shaft connection parts at both ends of the hydraulic cylinder (5).

5. An automatic separation device for a continuous casting billet and a dummy bar according to claim 1, characterized in that: It further includes a grating plate (15). The grating plate (15) is arranged behind the free roller path (13) and is welded and fixed to the roller path support beam (4) on both sides.

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