A medium frequency furnace sticking removal system

Abstract

The present invention discloses a medium frequency furnace sticking removal system, the system includes a discharge positioning plate, a pressing mechanism, a floating positioning mechanism, a photoelectric switch, a distance measuring device, a waste slide, a system bracket, a system table, and an air blowing cooling mechanism; the distance measuring device detects the discharge of the sticking blank, the pressing mechanism and the floating positioning mechanism press the sticking blank, the photoelectric switch detects whether the pressing is successful, and the blank that failed to be pressed is discharged through the waste slide. The present invention solves the frequent shutdown failures caused by the sticking of the medium frequency furnace heating discharge in the forging automation production line, and ensures the stable and continuous operation of the medium frequency heating link of the forging automation production line.

Description

Technical Field

[0001] The present invention belongs to the field of forging automation equipment, and in particular relates to a medium frequency furnace sticking removal system. Background Art

[0002] In the forging automation production line, medium frequency furnaces are often used to heat hot bar billets to the forging temperature, and then automatic clamps are used to transport the heated bar billets to forming presses and other equipment for forging and forming. Since the production cycle of the forging automation production line is fast, especially small-volume forgings require fast forging cycles, large output, and stable production; therefore, certain requirements are placed on the operation stability of the entire line equipment. Due to structural limitations in the furnace of a conventional medium frequency furnace, the bar billets in the furnace are tightly arranged along the axial direction, and there is no conveying power in the furnace.

[0003] The heated billets can be squeezed out of the furnace one by one by using pressure rollers or push rods at the feeding end of the furnace to send the cold billets into the furnace one by one. Due to the tight fit of the end faces of the bar billets and the thrust of the pushing device, especially small-volume forgings require a fast forging cycle, the medium-frequency furnace has high heating power, fast speed, and uneven heat penetration. In order to meet the forging temperature requirements, the surface temperature of the bar in the medium-frequency furnace is higher than that of the core, as well as special alloy material factors. In summary, due to the above factors, it is easy for the end faces of the hot bar billets to stick together, especially small-volume bars. This phenomenon frequently occurs during the production process, and forging cannot be continued after adhesion, which causes frequent shutdowns of the entire forging line and requires frequent troubleshooting, seriously affecting the production capacity of the forging automation production line. Summary of the invention

[0004] The purpose of the present invention is to provide a medium frequency furnace sticking removal system to eliminate the problem of end surface sticking of rod-shaped hot billets when discharging them in a medium frequency furnace automated forging production line, thereby ensuring stable hot billet feeding in subsequent forging processes and greatly reducing the downtime and failure rates of the overall automated forging production line.

[0005] The technical solution to achieve the purpose of the present invention is: a medium frequency furnace sticking removal system, the system includes a discharge positioning plate, a pressing mechanism, a floating positioning mechanism, a photoelectric switch, a distance measuring device, a waste slide, a system bracket and a system table, the system table is fixed on the system bracket, a discharge positioning plate is installed at one end of the system table, one end face of the discharge positioning plate is aligned with the medium frequency furnace discharge port, the pressing mechanism is connected to the system table, and is used to press off the adhered hot blank; the floating positioning mechanism is used to fix the hot blank protruding from the discharge positioning plate and adjust its height. The distance measuring device is installed on one end of the system table away from the discharge positioning plate, and the distance measuring direction points to the discharge port of the medium frequency furnace. It is used to detect whether the hot billet is at the pressing position corresponding to the pressing mechanism. A waste chute is fixed under the system table, and a table through groove larger than the size of the hot billet is provided on the system table. Photoelectric switches are installed on both sides of the system table. If the clamp and the hot billet are detected, the cutting is successful, and the clamp transports the hot billet to the subsequent forming equipment. If the photoelectric switch only detects the hot billet, the cutting fails. The hot billet that fails to be pressed falls along the table through groove into the waste chute below and is discharged.

[0006] Compared with the prior art, the present invention has the following significant advantages:

[0007] (1) The present invention utilizes a pressing mechanism, a floating positioning mechanism and other devices to automatically cut off the sticking hot blank, thereby avoiding the waste of discarding the sticking hot blank and saving labor. By removing the sticking of the intermediate frequency furnace, the forging automatic production line can be operated under the condition of the sticking of the intermediate frequency furnace;

[0008] (2) The breaking mechanism of the present invention utilizes a material pressing rod structure, the floating positioning mechanism utilizes a floating lifting structure, and a matching air blowing cooling mechanism, which reduces the direct force on the cylinder, reduces the influence of the blank heat on the mechanism, and prolongs the service life of the system;

[0009] (3) The present invention utilizes photoelectric switches, distance measuring devices and other mechanisms to detect the results of the press-breaking, thereby preventing a small number of hot blanks that fail to be press-broken from being transferred to subsequent processes, and reducing the downtime associated with the forging production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a side schematic diagram of the pressing mechanism of the present invention.

[0011] Figure 2 It is a side schematic diagram of the floating positioning mechanism of the present invention.

[0012] Description of reference numerals:

[0013] Discharging positioning plate 1, breaking mechanism 2, floating positioning mechanism 3, photoelectric switch 4, distance measuring device 5, waste slide 7, system bracket 6, system table 8, air blowing cooling mechanism 9, discharging channel 11, including breaking cylinder 21, breaking cylinder joint 22, pressing push rod 23, pressing shaft 24, shaft fixing seat 25, pressing rod 26, finger block heat insulation sheet 27, pressing rod finger block 28, hot blank 29, floating cylinder 31, floating air Cylinder top rod 32, floating lifting plate 33, floating guide rod 34, floating guide sleeve 35, floating positioning plate 36, floating guide rod flat groove 38, positioning through groove 39, medium frequency furnace discharge port 51, press-off cylinder support 72, floating cylinder support 73, support foot chassis 74, support foot stud 75, table top through groove 81, lifting threaded hole 82, lifting eye bolt 83, press-off cylinder top rod blowing 91, press shaft blowing 92, floating cylinder top rod blowing 93. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] like Figure 1 and Figure 2 As shown, a medium frequency furnace sticking removal system suitable for forging automation is installed with a discharge positioning plate 1, a pressing mechanism 2, a floating positioning mechanism 3, a photoelectric switch 4, a distance measuring device 5, a waste slide 7, a system bracket 6, a system table 8, and an air blowing cooling mechanism 9.

[0016] like Figure 1 As shown, the discharge positioning plate 1 is fixedly installed on the system table 8, and a V-shaped discharge slot 11 is opened on its upper end surface. The discharge slot 11 of the discharge positioning plate 1 is aligned with the axis of the medium frequency furnace discharge port 51. The two end surfaces of the discharge positioning plate 1 are respectively in contact with the medium frequency furnace discharge port 51 and the end surface of the floating positioning plate 36. The distance measuring device 5 is installed on the system table 8, and is located on the axis of the medium frequency furnace discharge port 51, and is a distance away from the front of the medium frequency furnace discharge port 51. The distance measuring direction of the distance measuring device 5 points to the direction of the medium frequency furnace discharge port 51.

[0017] like Figure 1As shown, the breaking mechanism (2) comprises a breaking cylinder (21), a breaking cylinder joint (22), a material pressing push rod (23), a material pressing shaft (24), a shaft fixing seat (25), and a material pressing rod (26), wherein the breaking cylinder 21 is fixedly mounted on the system bracket 6 via a breaking cylinder support 72, the breaking cylinder joint 22 is threadedly fixed at the end of the rod of the breaking cylinder 21, the breaking cylinder joint 22 is connected to the material pressing push rod 23 via a pin, the material pressing push rod 23 is connected to the shaft fixing seats 25 on both sides thereof via the material pressing shaft 24, and the shaft fixing seat 25 is fixed to the system table 8 via bolts. A finger block 28 is installed at one end of the material pressing rod 26, and the finger block 28 can be replaced according to the size of the hot bar material or after thermal deformation, and the other end of the material pressing rod 26 is fixedly mounted on the material pressing shaft 24. The breaking mechanism 2 extends and retracts the breaking cylinder 21, which is converted into the breaking action and lifting movement of the pressing rod 26 on the end of the hot blank 29 through the pressing push rod 23 and the pressing shaft 24, so as to complete the breaking of the hot blank 29. The breaking mechanism 2 is designed by the pressing push rod 23, the pressing shaft 24 and the pressing rod 26, so that the breaking cylinder 21 and other mechanisms are far away from the hot blank 29, reducing the deformation caused by the heat radiation and heat conduction of the hot blank 29 to some heat-resistant mechanism parts of the breaking mechanism 2, extending the radial force of the breaking cylinder 21 when breaking the hot blank 29, reducing the radial wear of the breaking cylinder 21, and extending the service life of the breaking mechanism 2. The end of the pressing rod 26 is separated from the pressing rod finger block 28 by the finger block heat insulation sheet 27, reducing the heat conduction of the pressing rod finger block 28 to the pressing rod 26 and other components.

[0018] like Figure 2As shown, the floating positioning mechanism 3 comprises a floating cylinder 31, a floating cylinder top rod 32, a floating lifting plate 33, a floating guide rod 34, a floating guide sleeve 35 and a floating positioning plate 36, wherein the floating cylinder 31 is fixedly mounted on the system bracket 6 through a floating cylinder support 73, and the end of the rod of the floating cylinder 31 is threadedly connected to the floating cylinder top rod 32. The floating guide sleeve 35 is fixed to the system table 8 by bolts, and the floating guide rod 34 penetrates the floating guide sleeve 35, and the upper and lower end surfaces of the floating guide rod 34 are fixedly connected to the floating lifting plate 33 and the floating positioning plate 36 respectively. The top of the floating cylinder top rod 32 is arched, which reduces the contact area with the floating lifting plate 33 and reduces the conduction of heat to the floating cylinder 31 and other components. The upper end surface of the floating positioning plate 36 is provided with a V-shaped positioning groove 39 along the axial direction of the hot blank, so that the rod-shaped hot blanks of different diameters can be positioned along the axial direction. When the rod-shaped hot blank is ejected from the discharge port 51 of the medium frequency furnace, it moves along the axial direction on the end surfaces of the discharge positioning plate 1 and the floating positioning plate 36. At this time, the floating cylinder 31 maintains the state of lifting the floating lifting plate 33, so that the floating positioning plate 36 and the discharge positioning plate 1 maintain the same horizontal plane. When the distance measuring device 5 detects that the outermost end surface of the hot blank 29 moves to the suitable position for breaking on the floating positioning plate 36, the sticking material release system controls the breaking mechanism 2 to break the outermost blank, and at the same time controls the solenoid valve of the floating cylinder 31 of the floating positioning mechanism 3 to turn to the middle leakage mode, so that the floating positioning plate 36 slowly sinks when it is subjected to the force of the breaking mechanism 2 to break the blank. The floating cylinder 31 in the middle leakage state buffers the force transmitted by the floating positioning plate 36 through the floating guide rod, reduces the force of the breaking mechanism 2 on the floating positioning mechanism 3, and provides a vertical downward displacement for the breaking mechanism 2 to break the adhered blank, thereby improving the success rate of breaking. After the cutting is completed, the pressing rod 26 is lifted. At the same time, the floating cylinder 31 moves upward to lift the floating lifting plate 33, and transmits it through the floating guide rod 34, so that the floating positioning plate 36 is lifted and maintained at the same horizontal plane with the discharge positioning plate 1, thereby realizing the clamp positioning and grasping requirements of the automated equipment.

[0019] like Figure 1As shown, the distance measuring device 5 is a laser non-contact type. The waste chute 7 is installed directly below the system table 8. The system table 8 directly above the waste chute 7 has a hollow table slot 81. The size of the table slot 81 is larger than the size of the blank. The photoelectric switch 4 is installed on the system table 8, located on both sides of the table slot 81. Its detection range is between the medium frequency furnace discharge port 51 and the distance measuring device 5, and above and on both sides of the table slot 81. When the hot blank 29 of the automation equipment clamp moves horizontally along the axis direction of the medium frequency furnace discharge port toward the distance measuring device 5, when the distance measuring device 5 detects that the automation equipment clamp exceeds the detection range of the photoelectric switch 4, the automation equipment clamp is controlled to stop moving immediately. At this time, if the adhered hot blank 29 is cut off successfully, the photoelectric switch 4 cannot detect the clamp and the single hot blank, and the clamp transports the hot blank to the subsequent molding equipment; if the adhered hot blank 29 fails to be cut off, the photoelectric switch 4 can still detect the hot blank, indicating that the blank fails to be pressed off, and the clamp will drop the failed blank, that is, the adhered blank, into the waste chute 7 below along the table groove 81 for discharge, so as to prevent and in a few cases cause subsequent production failures due to the failure to release the adhesive.

[0020] like Figure 1 and Figure 2 As shown, the air blowing cooling mechanism 9 is distributed in the pressure-breaking cylinder top rod air blowing 91, the pressing shaft air blowing 92, and the floating cylinder top rod air blowing 93. By purging with compressed gas, the heat radiation and conduction of the heat of the blank to the related mechanisms are reduced. The floating guide rod 34 is milled with a floating guide rod flat groove 38 at the floating cylinder top rod air blowing 93 to increase the air blowing heat dissipation area and enhance the air blowing heat dissipation effect. The air blowing cooling mechanism 9 can adopt a pipeline and an air blowing nozzle, which is a conventional structure in the field and will not be repeated here.

[0021] like Figure 1 As shown, the system table 8 is installed on the system bracket 6, and the system bracket 6 includes 4 support foot chassis 74 and 4 support foot studs 75. By adjusting the relative position of the support foot chassis 74 and the system bracket 6, the relevant mechanism of the system table 8 and the medium frequency furnace discharge port 51 are adjusted to a suitable position height. The system table 8 is installed with lifting threaded holes 82 and eye bolts 83 to facilitate the lifting and movement of the adhesive removal system during installation and maintenance.

Claims

1. A medium frequency furnace sticking removal system, characterized in that: The system comprises a discharge positioning plate (1), a pressing and breaking mechanism (2), a floating positioning mechanism (3), a photoelectric switch (4), a distance measuring device (5), a waste slide (7), a system bracket (6) and a system table (8). The system table (8) is fixed on the system bracket (6). One end of the system table (8) is installed with a discharge positioning plate (1). One end surface of the discharge positioning plate (1) is aligned with the discharge port (51) of the medium frequency furnace. The pressing and breaking mechanism (2) is connected to the system table (8) and is used to press and break the adhered hot blank (29). The floating positioning mechanism (3) is used to fix the hot blank (29) protruding from the discharge positioning plate (1) and adjust its height. The distance measuring device (5) is installed on the system table (8). ) is on one end away from the discharge positioning plate (1), and the distance measuring direction points to the direction of the medium frequency furnace discharge port (51), and is used to detect whether the hot blank (29) is at the corresponding breaking position of the breaking mechanism (2). A waste chute (7) is fixed below the system table (8), and a table through groove (81) larger than the size of the hot blank (29) is provided on the system table (8). Photoelectric switches (4) are installed on both sides of the system table (8). If the clamp and the hot blank (29) are detected, the cutting is successful, and the clamp transports the hot blank (29) to the subsequent forming equipment. If the photoelectric switch (4) only detects the hot blank (29), the cutting fails, and the hot blank (29) that fails to be broken falls along the table through groove (81) into the waste chute (7) below and is discharged.

2. The medium frequency furnace sticking removal system according to claim 1 is characterized in that: The upper end surface of the discharge positioning plate (1) is provided with a V-shaped discharge slot (11), and the discharge slot (11) is aligned with the axis of the discharge port (51) of the medium frequency furnace.

3. The medium frequency furnace sticking removal system according to claim 1 is characterized in that: The breaking mechanism (2) comprises a breaking cylinder (21), a breaking cylinder joint (22), a material pressing push rod (23), a material pressing rotating shaft (24), a rotating shaft fixing seat (25) and a material pressing push rod (26); the breaking cylinder (21) is fixedly mounted on the system bracket (6) via a breaking cylinder support (72); the breaking cylinder joint (22) is threadedly fixed at the end of the rod of the breaking cylinder (21); the breaking cylinder joint (22) is connected to the material pressing push rod (23) via a pin; the material pressing push rod (23) is connected to the rotating shaft fixing seats (24) on both sides thereof; 25) is connected through a pressing shaft (24), and the shaft fixing seat (25) is fixed on the system table (8) by means of bolts. One end of the pressing rod (26) is connected to the pressing shaft (24), and the other end is detachably mounted with a pressing rod finger block (28); through the extension and retraction movement of the breaking cylinder (21), the pressing push rod (23) and the pressing shaft (24) are converted into the pressing rod (26) to perform a breaking action and a lifting movement on the end of the hot blank (29) adhering to the end, thereby completing the breaking of the adhering hot blank (29).

4. The medium frequency furnace sticking removal system according to claim 3 is characterized in that: A finger block heat insulating sheet (27) is provided between the material pressing rod (26) and the rod finger block (28).

5. The medium frequency furnace sticking removal system according to claim 3 is characterized in that: The floating positioning mechanism (3) comprises a floating cylinder (31), a floating cylinder top rod (32), a floating lifting plate (33), a floating guide rod (34), a floating guide sleeve (35) and a floating positioning plate (36); the floating cylinder (31) is fixedly mounted on a system bracket (6) via a floating cylinder support (73); the end of the rod of the floating cylinder (31) is threadedly connected to the floating cylinder top rod (32); the floating cylinder top rod (32) is connected to the floating lifting plate (33); the floating guide sleeve (35) is fixed to the system table (8) via bolts; the floating guide rod (34) penetrates into the floating guide sleeve (35); and the two ends of the floating guide rod (34) are fixedly connected to the floating lifting plate (33) and the floating positioning plate (36) respectively.

6. The medium frequency furnace sticking removal system according to claim 5 is characterized in that: The top of the floating cylinder push rod (32) is arched, the upper end surface of the floating positioning plate (36) is provided with a V-shaped positioning groove (39) along the axial direction of the hot blank, and the two end surfaces of the discharge positioning plate (1) are respectively in contact with the discharge port (51) of the medium frequency furnace and the end surface of the floating positioning plate (36).

7. The medium frequency furnace sticking removal system according to claim 1 is characterized in that: The distance measuring device (5) is of laser non-contact type and is located on the axis of the medium frequency furnace discharge port (51).

8. The medium frequency furnace sticking removal system according to claim 5 is characterized in that: The push rod of the breaking cylinder (21), the material pressing shaft (24) and the floating cylinder push rod (32) are all connected to an air blowing cooling mechanism (9).

9. The medium frequency furnace sticking removal system according to claim 1 is characterized in that: The system support (6) comprises four support legs, four support leg chassis (74) and four support leg studs (75). By adjusting the relative position of the support leg chassis (74) and the system support (6), the system table (8) and the medium frequency furnace discharge port (51) are adjusted to a specified position height.

10. The medium frequency furnace sticking removal system according to claim 1, characterized in that: The system table top (8) is provided with a lifting threaded hole (82) and a lifting eye bolt (83).

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