Heating equipment for forging production of forge pieces and using method of heating equipment

Abstract

The invention relates to the field of heating equipment, in particular to forge piece forging production heating equipment and a using method thereof.The forge piece forging production heating equipment comprises a heating furnace shell, a full-heating forge piece and a partial-heating forge piece; the forge piece conveying mechanism is arranged in the heating furnace shell, the two sides of the forge piece conveying mechanism are located on the left side and the right side of the heating furnace shell, a feeding end and a discharging end are formed respectively, a partially-heated forge piece containing hole and a plurality of fully-heated forge piece supporting rods are arranged on the forge piece conveying mechanism, and a supporting ring is arranged in the partially-heated forge piece containing hole; the medium-frequency heating coil is arranged on the inner wall of the top of the heating furnace shell and used for conducting electromagnetic induction heating on the forge pieces in the space above the forge piece conveying mechanism; and the control system is in control connection with the forge piece conveying mechanism and the medium-frequency heating coil. According to the device, the forgings can be horizontally placed and vertically placed, the forgings are fully heated and partially heated in combination with the intermediate-frequency heating coil with the set shape, and the application range is wider.

Description

Technical Field

[0001] The present invention relates to the field of heating equipment, and particularly to a heating equipment for forging production of forgings and its use method. Background Art

[0002] Before forging, forgings need to be heated to ensure that the finished products can obtain the required properties. There are various heating equipment for forgings. Among them, intermediate frequency induction heating equipment has become an ideal choice in the fields of forging and metal processing of forgings due to its characteristics of high efficiency, environmental protection, and precise control.

[0003] Chinese Patent with publication number CN218989341U discloses an intermediate frequency induction heating furnace for the production of bearing ring forgings. By setting a turntable, a lead screw, a movable block, a sliding hole, a rotating rod, and a clamping plate, when the screw is reversed and moves out of the movable plate, the rotating tube rotates around the pin shaft, thereby driving a plurality of bearing ring forgings to move to the vertical direction. The cylinder is controlled to contract, and the contracted cylinder drives a plurality of bearing ring forgings to neatly move into the heating furnace. The cylinder is controlled to extend, and the extended cylinder can drive a plurality of bearing ring forgings to move out of the heating furnace through the movable plate and the rotating assembly. The operation is simple, enabling the user to conveniently pick up and place a plurality of bearing ring forgings to be heated.

[0004] However, the above-mentioned disclosed solution has the following deficiencies: Some forgings need to strictly control the forging deformation area during forging. Such forgings can only be heated in the deformation area. For example, for some cylindrical forgings, only the upper half needs to be heated and then forged. In the disclosed technical solution, the forgings will be heated as a whole after entering the heating furnace, and local heating of the forgings cannot be performed. Summary of the Invention

[0005] The object of the present invention is to address the problem that the intermediate frequency induction heating furnace in the background art cannot perform local heating on forgings, and to propose a heating equipment for forging production of forgings and its use method.

[0006] On the one hand, the present invention proposes a heating equipment for forging production of forgings, including a heating furnace housing, fully heated forgings, and partially heated forgings; it further includes: A forging conveying mechanism, which is arranged inside the heating furnace housing and is located on the left and right sides of the heating furnace housing at both sides, respectively forming a feeding end and a discharging end. A partially heated forging placement hole and a plurality of fully heated forging support rods are arranged on the forging conveying mechanism, and a support ring is arranged in the partially heated forging placement hole; An intermediate frequency heating coil, which is arranged on the inner wall of the top of the heating furnace housing, and the intermediate frequency heating coil is used to perform electromagnetic induction heating on the forgings in the space above the forging conveying mechanism; And a control system, which is controllably connected to both the forging conveying mechanism and the intermediate frequency heating coil.

[0007] Preferably, the intermediate frequency heating coil is U-shaped, and the opening of the U-shaped groove faces the feeding end. One side of the intermediate frequency heating coil close to the discharging end of the forging conveying mechanism is provided with an upturned end that tilts upward for the forging to be removed.

[0008] Preferably, the forging conveying mechanism includes a forging support assembly and a power assembly. The forging support assembly is used to support the fully heated forging and the partially heated forging, and the power assembly is used to drive the forging support assembly to move and convey.

[0009] Preferably, the forging support assembly includes a conveying block, partially heated forging placement holes provided on the conveying block, a plurality of fully heated forging support rods provided on the conveying block, and a plug rod and a cylinder horizontally provided on the conveying block.

[0010] Preferably, the power assembly includes guide rails provided on the inner wall of the heating furnace shell and a power protection cover provided on the outer wall of the heating furnace shell; there are two guide rails, and guide grooves for the plug rod to insert are provided on the opposite end faces of the two guide rails. Both ends of the guide rails are arc-shaped to form a circulating conveying route. A motor and a speed reducer are provided inside the power protection cover. The output shaft of the motor is connected to the input shaft of the speed reducer. A turntable is provided on the output shaft of the speed reducer, and a plurality of push rods are provided on the outer peripheral wall of the turntable. The push rods push the cylinder to move the conveying block.

[0011] Preferably, inner support members are provided on the inner wall of the heating furnace shell to support the inner side of the conveying block. Both ends of the inner support members are arc-shaped, and multiple groups of cooling water pipes are provided on the inner wall of the inner support members. A water inlet pipeline and a water outlet pipeline communicating with the cooling water pipes are provided on the heating furnace shell.

[0012] Preferably, a discharging mechanism is provided on the heating furnace shell to convey the forging removed from the discharging end of the forging conveying mechanism.

[0013] On the other hand, the present invention proposes a use method of a forging production heating device for forgings, including the following steps: S1. Horizontally place the fully heated forging on a plurality of fully heated forging support rods, or place the partially heated forging in the partially heated forging placement holes; S2. Start the motor, the intermediate frequency heating coil, and the discharging mechanism, and the conveying block moves intermittently for conveying; S3. After the forging enters the heating area of the intermediate frequency heating coil, it is gradually heated as the conveying block moves; S4. The fully heated forging and the partially heated forging are discharged from the discharging end of the forging conveying mechanism.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: By providing a fully heated forging support rod and a partially heated forging placement hole, the horizontal and vertical placement of forgings can be achieved. Combined with an intermediate frequency heating coil with a set shape, the full heating and partial heating of forgings can be completed, with a wider range of applications. Moreover, the length of partial heating can be adjusted by adjusting the height of the support ring, facilitating adaptation to different forgings. Additionally, by providing a discharging mechanism, the full-heated forgings and partially heated forgings can be automatically distinguished and discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an embodiment of the present invention; Figure 2 is Figure 1 a schematic internal structure diagram of the inner shell of the heating furnace; Figure 3 is Figure 2 a schematic structural diagram after removing the guide rail; Figure 4 is Figure 3 a schematic structural diagram from another perspective; Figure 5 is a schematic working diagram of partial heating of forgings; Figure 6 is a schematic structural diagram of the forging conveying mechanism.

[0016] Reference numerals: 1, inner shell of the heating furnace; 2, guide rail; 3, conveying block; 4, insertion rod; 5, fully heated forging support rod; 6, baffle; 7, partially heated forging placement hole; 8, support ring; 9, cylinder; 10, fully heated forging; 11, partially heated forging; 12, intermediate frequency heating coil; 13, upwardly curved end; 14, inner support member; 15, cooling water pipe; 16, water inlet pipeline; 17, water outlet pipeline; 18, power protection cover; 19, turntable; 20, pushing rod; 21, fully heated forging guide groove; 22, partially heated forging guide groove; 23, mounting seat; 24, telescopic device; 25, pushing rod; 26, avoidance groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Embodiment 1, as Figures 1 - 2 shown, a forging forging production heating device proposed by the present invention includes an inner shell 1 of a heating furnace, a fully heated forging 10, and a partially heated forging 11. The fully heated forging 10 is placed horizontally and needs to be fully heated, while the partially heated forging 11 is placed vertically and only needs to be heated in a local area from the top downwards. It further includes: The forging conveying mechanism is arranged inside the heating furnace shell 1 and is located on the left and right sides of the heating furnace shell 1 at both sides, respectively forming a feeding end and a discharging end. A partial heating forging placement hole 7 and a plurality of full heating forging support rods 5 are arranged on the forging conveying mechanism. A support ring 8 is arranged inside the partial heating forging placement hole 7. The partial heating forging placement hole 7 is used to place the partial heating forging 11 and the support ring 8 is used to support the bottom of the partial heating forging 11. The full heating forging support rods 5 are used to place the full heating forging 10. The full heating forging support rods 5 are arranged in two rows, and a plurality of them are arranged at equal intervals in each row. The full heating forging 10 is placed on the two rows of full heating forging support rods 5. The partial heating forging placement hole 7 is located between the two rows of full heating forging support rods 5; The intermediate frequency heating coil 12 is arranged on the inner wall of the top of the heating furnace shell 1. The intermediate frequency heating coil 12 is used to perform electromagnetic induction heating on the forgings in the space above the forging conveying mechanism; The intermediate frequency heating coil 12 is U-shaped, and the opening of the U-shaped groove faces the feeding end. An upwardly tilted end 13 is arranged on the side of the intermediate frequency heating coil 12 close to the discharging end of the forging conveying mechanism for the forging to move out. After the full heating forging 10 passes through the electromagnetic induction area of the intermediate frequency heating coil 12, it is fully heated. Only the material at the top section height of the partial heating forging 11 passes through the electromagnetic induction heating area to achieve partial heating. The height of the partial heating can be determined by adjusting the position of the support ring 8. To facilitate the adjustment of the position of the support ring 8, a mutually matching thread is arranged between the outer peripheral wall of the support ring 8 and the inner peripheral wall of the partial heating forging placement hole 7; And a control system, the control system is connected to both the forging conveying mechanism and the intermediate frequency heating coil 12 for control.

[0018] Embodiment 2, as Figure 3 、 Figure 4 and Figure 6 shown, a forging production heating device for forgings proposed by the present invention. Compared with Embodiment 1, the structure of the forging conveying mechanism is introduced in detail in this embodiment.

[0019] The forging conveying mechanism includes a forging support component and a power component. The forging support component is used to support the full heating forging 10 and the partial heating forging 11, and the power component is used to drive the forging support component to move and convey.

[0020] Furthermore, the forging support assembly includes a conveying block 3, a partial heating forging placement hole 7 provided on the conveying block 3, a plurality of full heating forging support rods 5 provided on the conveying block 3, and a plug rod 4 and a cylinder 9 horizontally provided on the conveying block 3; the power assembly includes a guide rail 2 provided on the inner wall of the heating furnace housing 1, and a power protection cover 18 provided on the outer wall of the heating furnace housing 1; two guide rails 2 are provided, and guide grooves for inserting the plug rod 4 are provided on the opposite end faces of the two guide rails 2. Both ends of the guide rail 2 are arc-shaped to form a circulating conveying route. The conveying block 3 moves between the two guide rails 2 to complete the conveying of the forging. A motor and a speed reducer are provided in the power protection cover 18. The output shaft of the motor is connected to the input shaft of the speed reducer. A turntable 19 is provided on the output shaft of the speed reducer. A plurality of push rods 20 are provided on the outer peripheral wall of the turntable 19. The push rods 20 push the cylinder 9 to move the conveying block 3. The control system is connected to the motor for control.

[0021] Furthermore, in order to improve the stability of the movement of the conveying block 3, an inner support member 14 is provided on the inner wall of the heating furnace housing 1 to support the inner side of the conveying block 3. Both ends of the inner support member 14 are arc-shaped. A plurality of groups of cooling water pipes 15 are provided on the inner wall of the inner support member 14. An inlet water pipe 16 and an outlet water pipe 17 communicating with the cooling water pipes 15 are provided on the heating furnace housing 1. A circulating cooling system is connected through the inlet water pipe 16 and the outlet water pipe 17 to cool the inner support member 14, thereby cooling the conveying block 3 to prevent the temperature of the conveying block 3 from being too high during the working process.

[0022] Embodiment 3, as Figure 1 and Figure 5 shown, a forging production heating device proposed by the present invention, compared with Embodiment 1 or Embodiment 2, this embodiment details the structure of the discharging mechanism.

[0023] An unloading mechanism is provided on the outer shell 1 of the heating furnace to convey the forgings discharged from the discharging end of the forging conveying mechanism; the unloading mechanism includes a fully heated forging guide groove 21, a partially heated forging guide groove 22, a mounting seat 23, a telescopic device 24, a pusher rod 25 and a baffle 6; two baffles 6 are provided on the conveying block 3 and are respectively located on the front and rear sides of the fully heated forging 10; two conveying blocks 3 are distributed on both arc-shaped parts at the two ends of the inner support member 14. The conveying block 3 located above at the arc-shaped end of the inner support member 14 is used to convey the partially heated forging 11, and the conveying block 3 located at the lower upper part at the arc-shaped end of the inner support member 14 is used to convey the fully heated forging 10. Correspondingly, the partially heated forging guide groove 22 and the fully heated forging guide groove 21 are provided on the outer wall of the heating furnace shell 1 through a mounting frame. The partially heated forging guide groove 22 and the fully heated forging guide groove 21 are both inclined downward. The partially heated forging guide groove 22 and the fully heated forging guide groove 21 are respectively used to receive the partially heated forging 11 and the fully heated forging 10. The fully heated forging 10 directly falls onto the fully heated forging guide groove 21 under its own gravity. The partially heated forging 11 requires power for unloading. Specifically, a mounting seat 23 is provided on the inner wall of the heating furnace shell 1, a telescopic device 24 is provided on the mounting seat 23, a pusher rod 25 is provided at the telescopic end of the telescopic device 24, an avoidance groove 26 is provided on the inner support member 14. When the telescopic device 24 extends, the pusher rod 25 passes through the avoidance groove 26 and extends into the partially heated forging placement hole 7, so as to push out the partially heated forging 11 and make it fall onto the partially heated forging guide groove 22, completing automatic unloading. The control system is controllably connected to the telescopic device 24.

[0024] Embodiment 4, A method for using a forging production heating device proposed by the present invention uses the forging production heating device of Embodiment 3, and specifically includes the following steps: S1. Horizontally place the fully heated forging 10 on a plurality of fully heated forging support rods 5, or place the partially heated forging 11 in the partially heated forging placement hole 7, and perform different feeding operations on the forgings according to forging requirements. The feeding can be manual feeding or automatic feeding through a conveying line; S2. Start the motor, the intermediate frequency heating coil 12 and the unloading mechanism. The conveying block 3 moves intermittently for conveying, which can be achieved by controlling the intermittent operation of the motor. An electromagnetic induction heating area is formed between the intermediate frequency heating coils 12; S3. After the forging enters the heating area of the intermediate frequency heating coil 12, it is gradually heated as the conveying block 3 moves; S4. The fully heated forgings 10 and the partially heated forgings 11 are discharged from the discharge end of the forging conveying mechanism. Specifically, the fully heated forgings 10 slide onto the fully heated forging guide chute 21, and the partially heated forgings 11 are pushed by the pusher rod 25 and then fall onto the partially heated forging guide chute 22, completing the separate discharge. In the present invention, there are three common production modes. One is to perform the heating work of all the fully heated forgings 10. In this mode, the telescopic device 24 does not work. The second is to perform the heating work of all the partially heated forgings 11. In this case, the telescopic device 24 works according to the set time interval T1. The third is to alternately perform the heating work of the fully heated forgings 10 and the partially heated forgings 11. In this mode, the telescopic device 24 works according to the set time interval T2, and T2 is equal to twice of T1.

[0025] In summary, in the present invention, by providing the fully heated forging support rod 5 and the partially heated forging placement hole 7, the horizontal and vertical placement of forgings can be achieved. Combined with the intermediate frequency heating coil 12 with a set shape, the full heating and partial heating of forgings can be completed, with a wider range of use. Moreover, the length of partial heating can be adjusted by adjusting the height of the support ring 8, which is convenient for adapting to different forgings. In addition, by providing the discharge mechanism, the separate discharge of the fully heated forgings 10 and the partially heated forgings 11 is automatically completed.

[0026] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art to which the present invention pertains.

Claims

1. A heating device for forging production, comprising a heating furnace shell (1), a fully heated forging (10) and a partially heated forging (11); characterized in that: Also includes: A forging conveying mechanism is arranged in the heating furnace shell (1) and has two sides located on the left and right sides of the heating furnace shell (1), respectively forming a feeding end and a discharging end, a partially heated forging placement hole (7) and a plurality of fully heated forging support rods (5) are arranged on the forging conveying mechanism, and a support ring (8) is arranged in the partially heated forging placement hole (7); A medium frequency heating coil (12) is arranged on the top inner wall of the heating furnace shell (1), and the medium frequency heating coil (12) is used to perform electromagnetic induction heating on the forgings in the space above the forging conveying mechanism; And a control system, which is control-connected to the forging conveying mechanism and the medium-frequency heating coil (12).

2. The forging production heating equipment according to claim 1, characterized in that: The medium frequency heating coil (12) is U-shaped, and the U-shaped groove opens toward the feed end. The medium frequency heating coil (12) is provided with an upwardly tilted end (13) on one side close to the discharge end of the forging conveying mechanism for allowing the forging to be removed.

3. The forging production heating equipment according to claim 1, characterized in that: The forging conveying mechanism comprises a forging support assembly and a power assembly, wherein the forging support assembly is used to support fully heated forgings (10) and partially heated forgings (11), and the power assembly is used to drive the forging support assembly to move and convey.

4. The forging production heating equipment according to claim 3, characterized in that: The forging support assembly comprises a conveying block (3), a partially heated forging placement hole (7) arranged on the conveying block (3), a plurality of fully heated forging support rods (5) arranged on the conveying block (3), and an insertion rod (4) and a cylinder (9) horizontally arranged on the conveying block (3).

5. The forging production heating equipment according to claim 4, characterized in that: The power assembly comprises a guide rail (2) arranged on the inner wall of the heating furnace shell (1), and a power protection cover (18) arranged on the outer wall of the heating furnace shell (1); two guide rails (2) are arranged, and guide grooves for inserting the insertion rod (4) are arranged on the opposite end surfaces of the two guide rails (2), and both ends of the guide rails (2) are arc-shaped to form a circular conveying route. A motor and a reducer are arranged in the power protection cover (18), and the output shaft of the motor is connected to the input shaft of the reducer. A turntable (19) is arranged on the output shaft of the reducer, and a plurality of push rods (20) are arranged on the outer peripheral wall of the turntable (19), and the push rods (20) push the cylinder (9) to move the conveying block (3).

6. The forging production heating equipment according to claim 5, characterized in that: An inner support member (14) is arranged on the inner wall of the heating furnace shell (1) for supporting the inner side of the conveying block (3); both ends of the inner support member (14) are arc-shaped; a plurality of groups of cooling water pipes (15) are arranged on the inner wall of the inner support member (14); and a water inlet pipe (16) and a water outlet pipe (17) connected to the cooling water pipe (15) are arranged on the heating furnace shell (1).

7. The forging production heating equipment according to claim 6, characterized in that: A discharge mechanism is arranged on the heating furnace shell (1) for conveying the forgings moved out from the discharge end of the forging conveying mechanism.

8. A method for using a heating device for forging production, using the heating device for forging production according to claim 7, characterized in that: The following steps are involved: S1. placing a fully heated forging (10) horizontally on a plurality of fully heated forging support rods (5), or placing a partially heated forging (11) in a partially heated forging placement hole (7); S2, starting the motor, the medium frequency heating coil (12) and the discharging mechanism, and the conveying block (3) moves and conveys intermittently; S3, after the forging enters the heating area of ​​the medium frequency heating coil (12), it is gradually heated as the conveying block (3) moves; S4. The fully heated forgings (10) and the partially heated forgings (11) are discharged from the discharge end of the forging conveying mechanism.

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