CN112846054A

CN112846054A - But forging heating furnace that length is long in automatic control forging heating

Info

Publication number: CN112846054A
Application number: CN202011630243.5A
Authority: CN
Inventors: 刘衍巧; 田其伟; 刘恩奎; 石淑涵
Original assignee: Shandong Jianqiao Machinery Co Ltd
Current assignee: Jinan Jinruichi Heavy Industry Co.,Ltd.
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-28
Anticipated expiration: 2040-12-31
Also published as: CN112846054B

Abstract

The application relates to the field of forge piece heating forging, in particular to a forging heating furnace capable of automatically controlling the heating duration of a forge piece, which comprises a lifting device, a feeding device, a heating device and a discharging device, wherein the feeding device comprises a guide plate and a hydraulic cylinder, the guide plate is positioned between the lifting device and the heating device, one side far away from the lifting device is inclined towards the ground and is provided with a baffle, the hydraulic cylinder is arranged above the guide plate, the side surface of the guide plate is provided with a pulse controller, round steel can roll on the guide plate after being conveyed onto the guide plate by the lifting device and stops when rolling to the baffle, the hydraulic cylinder can push the round steel into the heating device, the pulse controller can send out pulse signals, the pulse signals have periodicity, when the hydraulic cylinder is controlled by the pulse signals to extend, the round steel can be pushed into the heating device, at the moment, the round steel originally in the heating furnace can move towards the discharging, the process can be circulated according to the period of the pulse signal, and the effect of controlling the heating time length is achieved.

Description

But forging heating furnace that length is long in automatic control forging heating

Technical Field

The application relates to the field of forge piece heating forging, in particular to a forging heating furnace capable of automatically controlling the heating time of a forge piece.

Background

The natural gas furnace is a heating device commonly used when steel parts are forged, round steel with different sizes can be heated, and forging is carried out after heating is completed. In order to facilitate pushing of round steel into the furnace and prevent the round steel from shifting, the round steel is generally horizontally placed and pushed into the furnace along the axial direction of the round steel.

The Chinese utility model patent with the current publication number of CN205079453U discloses a natural gas phase-change heating furnace with an automatic pushing device, which comprises a furnace body, wherein the interior of the furnace body is communicated with a fire tube, the fire tube is directly communicated with a smoke tube, the smoke tube is also sequentially communicated with a smoke box and a chimney, and a straight pull rod is fixed between end sockets at two ends of the furnace body; the upper end of the outer side of the furnace body is vertically fixed with a heat exchanger, the heat exchanger is of an upper closed cylinder and a lower closed cylinder, the upper part of the heat exchanger accounts for four fifths of the heat exchanger and is hermetically connected through a flange, the lower end of the heat exchanger is provided with a water return connecting pipe communicated with the inside of the furnace body, the upper end of the heat exchanger is provided with a steam inlet pipe communicated with the inside of the furnace body, and a natural gas coil is vertically fixed in the heat exchanger; the left end feed inlet department of furnace body is provided with automatic blevile of push, and automatic blevile of push includes first support table, second support table and feeding device, first support table and second support table are fixed in feed inlet one side of furnace body along the business turn over material direction of fire section of thick bamboo in proper order, and feeding device is the pneumatic cylinder, and the cylinder body and the second support table of pneumatic cylinder link firmly, still are provided with the scraping wings on feeding device's the piston rod, and first support table surface is provided with the direction passageway.

Aiming at the related technologies, the inventor thinks that the duration of heating of the forge piece in the heating process is not easy to control, the time is too short, the heating is insufficient, the forge piece is easy to break during forging, and the time is too long, so that the surface of the forge piece forms an oxide layer to increase the loss, which is not beneficial to subsequent forging.

Disclosure of Invention

In order to improve the phenomenon that the heating time is not easy to determine, the application provides a forging heating furnace capable of automatically controlling the heating time of a forge piece.

The application provides a but forging furnace that automatic control forging heating was long adopts following technical scheme:

a forging heating furnace capable of automatically controlling the heating time of a forge piece comprises a lifting device, a feeding device, a heating device and a discharging device, wherein the discharging end of the lifting device is connected with the feeding end of the feeding device, the discharging end of the feeding device is connected with the feeding hole of the heating device, and the discharging device is connected with the discharging hole of the heating device;

the feeding device comprises a guide plate and a plurality of hydraulic cylinders, the guide plate is connected with the discharge end of the lifting device, one side of the lifting device, away from the lifting device, inclines towards the ground, a baffle plate is arranged on one side of the guide plate, away from the lifting device, the hydraulic cylinders are located on the upper side face of the guide plate, extend and retract towards or away from the feed inlet of the heating device, and the hydraulic cylinders are connected with a pulse controller which controls the hydraulic cylinders to extend and retract in sequence.

Through adopting above-mentioned technical scheme, for the convenience of being in to heating device propelling movement round steel, the round steel curved surface contacts with hoisting device and deflector in the transportation to the axial of round steel is towards heating device. The round steel is conveyed to the guide plate through the lifting device, and can roll on the guide plate in the direction far away from the conveyor belt under the action of gravity until the round steel rolls to the baffle plate and stops; the telescopic direction of the hydraulic cylinder faces to or deviates from the feeding hole of the heating device, and the round steel can be pushed into the heating device by the extension of the hydraulic cylinder; pulse controller can send pulse signal, pulse signal has the periodicity, each high level signal time that sends all is the same, each low level signal's time is also the same, pulse signal is used for controlling the flexible of pneumatic cylinder, when pulse signal control pneumatic cylinder extension, the round steel can be pushed to heating device in, originally the round steel in the heating furnace can be to discharging device department removal this moment, stop heating, this process can circulate according to pulse signal's cycle, the effect of length of time has been realized to the control heating.

Optionally, a push plate is fixed at the end of a piston rod of the hydraulic cylinder, and the size of the push plate is matched with the size of the bottom surface of the round steel with the smallest diameter.

By adopting the technical scheme, when the hydraulic cylinder pushes the round steel into the heating furnace, the push plate can increase the stress area of the round steel; the round steel can be close to together owing to the action of gravity on the deflector, if the push pedal is greater than the bottom surface of round steel, takes place the too much phenomenon of round steel quantity of propelling movement easily, therefore the push pedal can improve the suitability with the round steel bottom surface size phase-match that the diameter is minimum.

Optionally, a limiting plate is arranged on one side, close to the conveyor belt, of the push plate along the direction of the piston rod, and one end, close to the heating furnace, of the limiting plate is inclined.

By adopting the technical scheme, the limiting plate can move when the piston rod of the hydraulic cylinder moves, and because the lengths of the round steels can be different, when a certain round steel is pushed, if the round steel positioned on one side of the round steel close to the conveyor belt is shorter, the round steel can shift, and the round steel rolls to the position of the pushed round steel, so that the piston rod of the hydraulic cylinder can not shrink, and the limiting plate can limit the shift of the round steel; the one end that is close to the heating furnace with the limiting plate sets up the limiting plate of can being convenient for of slope and stretches into between two round steels.

Optionally, a sliding groove is formed in the push plate in the vertical direction, a positioning block is arranged on the limiting plate, and the positioning block is connected with the sliding groove in a sliding mode.

By adopting the technical scheme, the limiting plate is connected with the push plate in a sliding mode through the sliding groove and the positioning block, the limiting plate can move together with the piston rod when the piston rod moves, the limiting plate is located between the two round steels, the round steels can jack the limiting plate upwards to enable the limiting plate to slide along the push plate in the vertical direction, the limiting plate stops sliding when sliding to the side close to the guide plate and tangent to the round steels, and the limiting plate can limit the round steels; meanwhile, the limiting plate is tangent to the round steel and is not completely inserted between the two round steels, and the phenomenon that the round steel moves towards the direction close to the conveying belt can be reduced.

Optionally, a height limiting bolt is arranged at the upper end of the push plate, and the height limiting bolt is in threaded connection with the push plate and extends into the sliding groove.

Through adopting above-mentioned technical scheme, the staff can adjust the height of limit for height bolt according to the diameter of round steel, confirms the gliding maximum height of limiting plate for can play limiting displacement to the round steel when the limiting plate stops to slide, can also reduce the phenomenon that the round steel removed to being close to the conveyer belt direction simultaneously.

Optionally, a distance varying device for adjusting the distance between two adjacent hydraulic cylinders is further arranged on the guide plate, the distance varying device comprises a distance varying screw rod and a driving block, the installation direction of the distance varying screw rod is parallel to the upper surface of the guide plate and perpendicular to the movement direction of the piston rod, the distance varying screw rod is provided with screw grooves, the distance between the screw grooves is sequentially and uniformly increased from one end far away from the conveyor belt to one end close to the conveyor belt, and one end of the distance varying screw rod is provided with a motor;

and one end of each hydraulic cylinder, which is far away from the heating furnace, is provided with a driving block, the driving block is provided with a through hole, the inner wall of the through hole is provided with a sliding block matched with the screw groove, the variable pitch screw rod penetrates through the through hole, and the screw groove of the variable pitch screw rod is in sliding connection with the sliding block.

Through adopting above-mentioned technical scheme, the rotation of displacement screw rod can be driven to the motor, through slider and thread groove sliding connection between displacement screw rod and the drive block, has relative motion between the displacement screw rod rotation in-process and the drive block, and the drive block can drive the pneumatic cylinder and slide along the displacement screw rod. The pitch of displacement screw is from the one end of keeping away from the conveyer belt to the one end that is close to the conveyer belt grow gradually, and the distance that is close to the pneumatic cylinder removal of conveyer belt one side will be greater than the pneumatic cylinder of keeping away from conveyer belt one side for the displacement of pneumatic cylinder matches with the diameter of round steel.

Optionally, the lifting device comprises a conveyor belt, and the surface of the conveyor belt is provided with grooves.

Through adopting above-mentioned technical scheme, the conveyer belt is when promoting the round steel, and the round steel is located the recess, can reduce the rolling phenomenon of round steel everywhere on the conveyer belt.

Optionally, the opening area of the groove is larger than the area of the bottom surface, and the two opposite side walls of the groove are not arranged in parallel.

Through adopting above-mentioned technical scheme, the open area of recess is greater than the area of bottom surface for the inside wall of recess all is the slope, and two lateral walls that the recess is relative are nonparallel simultaneously, can make the round steel in the recess the bottom surface contact of recess curved surface and recess when, also be curved surface and deflector contact when the round steel transports to on the deflector, the round steel of being convenient for rolls on the deflector.

Optionally, the position where the guide plate is connected with the lifting device is an inclined plane, and one side of the inclined plane close to the lifting device is lower than one side far away from the lifting device.

Through adopting above-mentioned technical scheme, the position department of being connected deflector and hoisting device sets up to the inclined plane, and the inclined plane can be convenient for the round steel and move to on the deflector.

Optionally, one side of the push plate close to the guide plate is not in contact with the guide plate.

Through adopting above-mentioned technical scheme, the push pedal does not contact with the deflector, can reduce the resistance between push pedal and the deflector promoting the round steel in-process.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pulse controller is arranged at the feeding device and can control the hydraulic cylinder to periodically move to push materials into the heating furnace, so that the effect of controlling the heating time length is realized;

2. one end of the hydraulic cylinder, which is far away from the heating device, is provided with a variable-pitch device, and the distance between two adjacent hydraulic cylinders can be adjusted, so that the distance between the hydraulic cylinders is matched with the diameter of the round steel.

Drawings

FIG. 1 is a schematic view of the overall structure of the feed inlet direction of the embodiment of the present application;

FIG. 2 is a schematic view of a portion of a lifting device in an embodiment of the present application;

FIG. 3 is a schematic view showing a part of the structure of a guide plate on the side close to a heating furnace in the embodiment of the present application;

FIG. 4 is an enlarged view at A in FIG. 3;

FIG. 5 is a partial schematic structural view of a feeding device in an embodiment of the present application;

FIG. 6 is an exploded view of the feeding device in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a driving block in the embodiment of the present application;

FIG. 8 is a schematic view of the overall structure of the discharge hole direction in the embodiment of the present application;

description of reference numerals: 100. a lifting device; 110. a conveyor belt; 120. a groove; 200. a feeding device; 210. a guide plate; 220. a hydraulic cylinder; 221. a piston rod; 222. a cylinder body; 223. pushing the plate; 224. a limiting plate; 225. a chute; 226. positioning blocks; 227. a height-limiting bolt; 230. a baffle plate; 240. a pulse controller; 300. a heating device; 310. a feed inlet; 320. a discharge port; 400. a discharging device; 500. a storage bin; 600. a pitch change device; 610. a variable pitch screw; 620. a drive block; 621. a through hole; 622. a slider; 630. a motor; 640. a fixed block; 700. a support; 800. a winch; 900. a door panel.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a forging heating furnace capable of automatically controlling the heating time of a forge piece.

Referring to fig. 1 and 2, the forging heating furnace includes hoisting device 100, material feeding unit 200, heating device 300 and discharging device 400, and hoisting device 100 has placed storage silo 500 of storage round steel on one side and has connected with storage silo 500 the feed end of hoisting device 100, and round steel in the storage silo 500 transports material feeding unit 200 through hoisting device 100 on, and material feeding unit 200 transports the round steel to heating device 300 in, transports discharging device 400 after the heating finishes again.

Lifting device 100 includes conveyer belt 110, and conveyer belt 110's surface is provided with the recess 120 that is used for holding the round steel, can reduce the rolling phenomenon of round steel everywhere on conveyer belt 110, and the area of the opening part of recess 120 is greater than the area of bottom surface department, can place more round steels. Meanwhile, each inner side wall of the groove 120 is inclined, so that the phenomenon that round steel stands in the groove 120 can be reduced.

The feeding device 200 comprises a guide plate 210 and a hydraulic cylinder 220, one side of the guide plate 210 is connected with the lifting device 100, one side of the guide plate is connected with the feeding hole 310 of the heating device 300, the position where the guide plate 210 is connected with the lifting device 100 is an inclined plane, the inclined plane is favorable for rolling round steel, and the lifting device 100 is convenient for transporting the round steel to the guide plate 210. A baffle 230 is provided at a side of the guide plate 210 remote from the lifting device 100, and the side of the guide plate 210 remote from the lifting device 100 is inclined to the ground. The upper surface of the guide plate 210 is provided with a plurality of hydraulic cylinders 220, and the telescopic direction of the hydraulic cylinders 220 faces the feed inlet 310 of the heating furnace, so that round steel can be pushed into the heating device 300. A pulse controller 240 is arranged on the side surface of the guide plate 210, and the pulse controller 240 is connected with the hydraulic cylinder 220 and used for transmitting a pulse signal to control the expansion and contraction of the hydraulic cylinder 220.

The push plate 223 is arranged at the end part of the piston rod 221 of the hydraulic cylinder 220, so that the contact area between the hydraulic cylinder 220 and the round steel can be increased. The size of the push plate 223 is matched with the round steel with the smallest diameter, and in order to reduce the friction force when pushing the round steel, the push plate 223 does not contact with the guide plate 210. A limit plate 224 is slidably connected to a side of the push plate 223 close to the conveyor belt 110, and the direction of the limit plate 224 is parallel to the direction of the piston rod 221.

Referring to fig. 3 and 4, a vertical sliding groove 225 is formed in the push plate 223, a height-limiting bolt 227 is connected to the top of the sliding groove 225 in a threaded manner, and the height-limiting bolt 227 extends into the sliding groove 225. The limit plate 224 is provided with a positioning block 226, the positioning block 226 is slidably connected with the sliding groove 225, and the height-limiting bolt 227 is used for determining the maximum sliding height of the limit plate 224. In order to facilitate the limit plate 224 to extend between two adjacent round bars, one end of the limit plate 224 close to the heating furnace may be inclined, and one side of the limit plate 224 close to the guide plate 210 is shorter than one side of the limit plate 224 far from the guide plate 210.

Referring to fig. 5 and 6, a distance varying device 600 is disposed on a side of the hydraulic cylinders 220 away from the heating device 300, and the distance varying device 600 can vary the distance between two adjacent hydraulic cylinders 220 so that the distance between two adjacent hydraulic cylinders 220 matches the diameter of the round steel.

The pitch-varying device 600 includes a pitch-varying screw 610 having a screw groove and a driving block 620, and the driving block 620 is installed at one end of the hydraulic cylinder 220 far from the heating device 300 and is slidably coupled to the guide plate 210. The pitch-variable screw 610 passes through the driving block 620, one end of the pitch-variable screw is rotatably connected with the fixed block 640, and the other end of the pitch-variable screw is connected with an output shaft key of the motor 630. The pitch-variable screw 610 rotates relative to the driving block 620 under the action of the motor 630, and the driving block 620 slides along the pitch-variable screw 610, so that the distance between two adjacent hydraulic cylinders 220 is changed.

The distance between the grooves of the pitch-variable screw 610 is uniformly gradually varied. The dense end of the pitch-variable screw 610 is arranged on the side of the guide plate 210 far away from the conveyor belt 110 and is in key connection with the output shaft of the motor 630, and the sparse end of the pitch-variable screw 610 is arranged on the side of the guide plate 210 near the conveyor belt 110 and is in rotary connection with the fixed block 640.

Referring to fig. 7, a through hole 621 is formed in the driving block 620, a sliding block 622 is disposed on an inner wall of the through hole 621, the pitch-variable screw 610 can pass through the through hole 621, and the screw groove is slidably connected to the sliding block 622. The motor 630 drives the pitch-variable screw 610 to rotate, and the sliding block 622 slides along the pitch-variable screw 610, so as to achieve the effect of adjusting the distance between two adjacent hydraulic cylinders 220.

Referring to fig. 1 and 8, supports 700 are arranged at two ends of the heating device 300, door panels 900 are mounted at the feed inlet 310 and the discharge outlet 320, the door panels 900 are connected with the heating device 300 in a sliding manner, a winch 800 is mounted on the supports 700, a rope of the winch 800 is connected with the door panels 900, the winch 800 can drive the door panels 900 to slide, the feed inlet 310 and the discharge outlet 320 can be opened and closed, and manpower is saved. The discharging port 320 is connected with a discharging device 400, and in the embodiment of the present application, the discharging device 400 can select the link plate type conveyor 110.

The implementation principle of the forging heating furnace capable of automatically controlling the heating time of the forge piece is as follows: the round steel is stored in storage silo 500, when forging the heating to the round steel, in the round steel falls the recess 120 of conveyer belt 110 from storage silo 500, conveyer belt 110 promoted the round steel to deflector 210 on, the curved surface of round steel and deflector 210 contact and the axial towards the feed inlet 310 of heating furnace. The round bar rolls on the guide plate 210 toward the side away from the conveyor belt 110 until it stops at the stop plate 230. The door panel 900 of the heating device 300 at the feed inlet 310 is started by the winch 800, the hydraulic cylinder 220 is started, the push plate 223 on the hydraulic cylinder 220 can be contacted with the bottom surface of the round steel to push the round steel in the heating furnace, and if the round steel is already arranged in the heating device 300 at the moment, the round steel in the heating device 300 can be ejected.

When the hydraulic cylinder 220 pushes round steel towards the heating device 300, the piston rod 221 of the hydraulic cylinder 220 extends, the limiting plate 224 moves together with the piston rod 221, and the limiting plate 224 extends into the space between two adjacent round steel and slides upwards under the action of the two round steel to be tangent to the round steel. The limiting plate 224 can limit the round steel on one side close to the conveyor belt 110, and the phenomenon that the round steel deviates is reduced. The round steel enters into heating device 300 back piston rod 221 and resumes the normal position, and limiting plate 224 no longer plays limiting displacement to the round steel, and the round steel can continue to roll under the effect of gravity, supplements original vacancy, realizes automatic feeding. The side wall of the guide plate 210 is provided with a pulse controller 240, and the pulse controller 240 is connected with the hydraulic cylinder 220 and can send out periodic pulse signals to control the periodic expansion and contraction of the hydraulic cylinder 220.

When the diameter of the round steel changes, the motor 630 can be started to enable the pitch-variable screw 610 to rotate, and as the threads of the pitch-variable screw 610 are gradually dense from the end close to the conveyor belt 110 to the end far away from the conveyor belt 110, when the hydraulic cylinder 220 slides, the sliding distance of the place with sparse threads is long, and the sliding distance of the place with dense threads is short. The distance between two adjacent hydraulic cylinders 220 under the action of the variable pitch device 600 can be matched with the diameter of the round steel.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a but long forging heating furnace of automatic control forging heating which characterized in that: the device comprises a lifting device (100), a feeding device (200), a heating device (300) and a discharging device (400), wherein the discharging end of the lifting device (100) is connected with the feeding end of the feeding device (200), the discharging end of the feeding device (200) is connected with a feeding hole (310) of the heating device (300), and the discharging device (400) is connected with a discharging hole (320) of the heating device (300);

material feeding unit (200) include deflector (210) and a plurality of pneumatic cylinder (220), deflector (210) are connected with the discharge end of hoisting device (100) to keep away from one side slope to ground of hoisting device (100), one side that hoisting device (100) were kept away from in deflector (210) is provided with baffle (230), and is a plurality of pneumatic cylinder (220) are located the side of going up of deflector (210), and flexible direction orientation perhaps deviates from feed inlet (310) of heating device (300), and is a plurality of pneumatic cylinder (220) all are connected with pulse controller (240), pulse controller (240) control a plurality of pneumatic cylinder (220) are flexible in proper order.

2. The forging heating furnace capable of automatically controlling the heating time of the forge piece according to claim 1, wherein: the end part of a piston rod (221) of the hydraulic cylinder (220) is fixed with a push plate (223), and the size of the push plate (223) is matched with the size of the bottom surface of the round steel with the smallest diameter.

3. The forging heating furnace capable of automatically controlling the heating time of the forge piece according to claim 2, wherein: one side of the push plate (223) close to the conveyor belt (110) is provided with a limiting plate (224) along the direction of the piston rod (221), and one end of the limiting plate (224) close to the heating furnace is inclined.

4. The forging heating furnace capable of automatically controlling the heating time of the forge piece according to claim 3, wherein: the push plate (223) is provided with a sliding groove (225) in the vertical direction, the limiting plate (224) is provided with a positioning block (226), and the positioning block (226) is in sliding connection with the sliding groove (225).

5. The forging furnace capable of automatically controlling the heating time of the forge piece according to claim 4, wherein: the upper end of the push plate (223) is provided with a height limiting bolt (227), and the height limiting bolt (227) is in threaded connection with the push plate (223) and extends into the sliding groove (225).

6. The forging heating furnace capable of automatically controlling the heating time of the forge piece according to claim 5, wherein: the guide plate (210) is further provided with a distance changing device (600) used for adjusting the distance between two adjacent hydraulic cylinders (220), the distance changing device (600) comprises a distance changing screw rod (610) and a driving block (620), the installation direction of the distance changing screw rod (610) is parallel to the upper surface of the guide plate (210) and is perpendicular to the movement direction of the piston rod (221), the distance changing screw rod (610) is provided with screw grooves, the distance between the screw grooves is sequentially and uniformly increased from one end far away from the conveyor belt (110) to one end close to the conveyor belt (110), and one end of the distance changing screw rod (610) is provided with a motor (630);

one end of each hydraulic cylinder (220) far away from the heating furnace is provided with a driving block (620), a through hole (621) is formed in the driving block (620), a sliding block (622) matched with a screw groove is arranged on the inner wall of the through hole (621), the variable-pitch screw rod (610) penetrates through the through hole (621), and the screw groove of the variable-pitch screw rod (610) is connected with the sliding block (622) in a sliding mode.

7. The forging heating furnace capable of automatically controlling the heating time of the forge piece according to claim 6, wherein: the lifting device (100) comprises a conveyor belt (110), and a groove (120) is formed in the surface of the conveyor belt (110).

8. The forging heating furnace capable of automatically controlling the heating time of the forge piece according to claim 7, wherein: the opening area of the groove (120) is larger than the area of the bottom surface, and two opposite side walls of the groove (120) are not arranged in parallel.

9. The forging heating furnace capable of automatically controlling the heating time of the forge piece according to claim 8, wherein: the connecting position of the guide plate (210) and the lifting device (100) is an inclined plane, and one side of the inclined plane close to the lifting device (100) is lower than one side far away from the lifting device (100).

10. The forging heating furnace capable of automatically controlling the heating time of the forge piece according to claim 9, wherein: one side of the push plate (223) close to the guide plate (210) is not contacted with the guide plate (210).