CN116428871A

CN116428871A - Automatic pushing and discharging device of heating furnace

Info

Publication number: CN116428871A
Application number: CN202310367940.3A
Authority: CN
Inventors: 李颖颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-08
Filing date: 2023-04-08
Publication date: 2023-07-14

Abstract

The invention discloses an automatic pushing and discharging device of a heating furnace, which comprises two groups of support brackets and two groups of pushing frames, wherein the two groups of pushing frames are arranged on opposite sides of the two groups of support brackets in parallel, two groups of transmission assemblies are transversely and symmetrically arranged on the inner sides of the two groups of pushing frames, driving parts are arranged in the middle of the two groups of transmission assemblies, and top frames for supporting heating workpieces are arranged on the tops of the two groups of support brackets; the transmission assembly comprises a bracket and a longitudinal shaft longitudinally arranged at the top end of the bracket. The beneficial effects are that: according to the invention, the front pushing frame and the rear pushing frame which are supported by the eccentric disc are arranged to periodically and stepwise feed steel pipe workpieces along the length direction of the supporting frame, a plurality of groups of supporting rods capable of being pressed and moved downwards are arranged on the pushing frames, so that a pit-shaped supporting structure for accommodating the steel pipe workpieces to move upwards and separate from the top frame is automatically formed, and the eccentric disc is used for driving the pushing frames to stably support the steel pipe workpieces, so that the stability of pushing, feeding and discharging of the steel pipe workpieces is ensured.

Description

Automatic pushing and discharging device of heating furnace

Technical Field

The invention relates to the field of machining equipment, in particular to an automatic pushing and discharging device of a heating furnace.

Background

The working principle of the heating furnace is that a workpiece is continuously filled from one end with lower furnace temperature (the tail of the continuous heating furnace), moves towards one end with higher furnace temperature (the furnace end of the heating furnace) at a certain speed, and moves in the furnace in the opposite direction to the furnace gas, and when the heated workpiece reaches the required temperature, the workpiece is continuously discharged from the furnace. Under the condition that the furnace stably works, furnace gas generally flows from the furnace head to the furnace tail along the length direction of the furnace chamber, and the temperature of the furnace chamber and the temperature of the furnace gas gradually decrease along the flowing direction, but the temperature of each point in the furnace basically does not change with time. The pushing and discharging process of the workpiece in the heating furnace directly affects the whole hot working production process until the quality of the product is affected;

because most of the workpieces are steel slabs or steel billets, the workpieces can be kept stable in the pushing and conveying process, the pushing and conveying equipment of the conventional heating furnace is a conveying belt or a conveying roller, however, when the steel pipes are required to be heated and tempered or oil drill pipes, drill collars, anchor rods, hydraulic prop cylinders, steel pipe heating and closing-in and the like are manufactured, round workpieces need to be pushed into the heating furnace, the conventional conveying belt and conveying roller conveying structure cannot keep the position stability of the round workpieces, the workpieces can easily roll under the inertia effect after being pushed to a set position, the problems of workpiece rolling, offset and even front-back collision exist in the moving process, the ordering of the materials entering and exiting of the heating furnace is influenced, the separation state cannot be guaranteed by adjacent workpieces, and the problem that the heating effect is influenced by material aggregation and binding pile exists.

Disclosure of Invention

The invention aims to solve the problems and provide an automatic pushing and discharging device of a heating furnace, which is provided with a front pushing frame and a rear pushing frame which are supported by an eccentric disc to periodically and stepwise feed steel pipe workpieces along the length direction of a supporting frame, and a plurality of groups of supporting rods capable of being pushed down are arranged on the pushing frames to ensure that the pushing frames driven by the eccentric disc can stably support the steel pipe workpieces so as to ensure the pushing, feeding and discharging stability of the steel pipe workpieces, and the device is described in detail below.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the invention provides an automatic pushing and discharging device of a heating furnace, which comprises two groups of supporting brackets and two groups of pushing frames, wherein the two groups of pushing frames are arranged on opposite sides of the two groups of supporting brackets in parallel, two groups of transmission assemblies are transversely and symmetrically arranged on the inner sides of the two groups of pushing frames, driving parts are arranged in the middle of the two groups of transmission assemblies, and top frames for supporting heating workpieces are arranged on the tops of the two groups of supporting brackets;

the transmission assembly comprises a bracket and a longitudinal shaft longitudinally arranged at the top end of the bracket, wherein eccentric discs are arranged at the front end and the rear end of the longitudinal shaft, and a transmission rod for supporting the pushing frame to upwards support the heating workpiece to carry out material conveying action is arranged at the eccentric position of the outer end face of the eccentric discs.

When the steel pipe workpieces are required to be fed into the furnace body for heating, two ends of the steel pipe workpieces are respectively placed on the upper sides of two groups of top frames in advance, adjacent steel pipe workpieces are separated through the positioning blocks, then a transverse shaft is driven to rotate through a motor, a worm on the transverse shaft is used for driving a worm wheel to support the two groups of longitudinal shafts to synchronously rotate, an eccentric disc at the end of the longitudinal shaft drives a transmission rod to rotate, the transmission rod supports a pushing frame to rotate in a translational state, when the pushing frame rotates to the height exceeding the top frame upwards under the support of the eccentric disc, rollers at the top ends of a plurality of groups of supporting rods on the pushing frame are contacted with the round workpieces, the rollers and the supporting rods in the downward moving state form a pit structure for supporting the round workpieces, the round workpieces are limited through the supporting rods on the two sides of the pit structure, the round workpieces placed on the top frames can be supported upwards, the round workpieces separated from the top frames are horizontally moved under the rotational translational motion of the pushing frame, and simultaneously, the pushing frame can be horizontally moved downwards from the top frame to the top frame, the round workpieces can be pushed downwards through the top frame, and then the round workpieces can be pushed downwards in a circle-shaped frame in a circle mode through the rotation of the supporting disc, and the round frames can be pushed downwards in a circle mode, and the round workpieces can be separated from the top frame to the round frame and then can be pushed downwards to the round frame in a circle mode, and the round frame is pushed to the round frame and is pushed downwards by the round frame in a circle; when the pushing frame is lifted upwards to support the round workpiece, the pushing frame is lifted upwards and simultaneously has a transverse movement, the pushing frame top side pushes the auxiliary plate to enable the auxiliary plate to move up and down synchronously, at the moment, the pushing frame and the auxiliary plate transversely slide relatively, the roller at the top end of the supporting rod is pressed down by the round workpiece to contact the auxiliary plate, the roller is driven to rotate through the relative sliding movement of the auxiliary plate and the pushing frame, and then the round workpiece is supported by the roller in a rotating state to rotate, so that the round workpiece is turned over automatically in the pushing process, and the heating uniformity of the workpiece is promoted.

Preferably, the pushing frame is of a rectangular square frame structure extending transversely, a plurality of groups of supporting rods which are uniformly distributed transversely are vertically arranged in the middle of the pushing frame in a penetrating mode, rollers are rotatably arranged on the front side and the rear side of the top end of each supporting rod, a baffle ring is fixed on the outer side of each supporting rod in the middle of the pushing frame, and springs which are abutted to the inner bottom side of the pushing frame are sleeved on the outer side of each supporting rod below the baffle ring.

Preferably, the stay bar is rectangular strip structure, the vertical rectangle through-hole that holds the vertical slip of stay bar that link up in push away in the frame middle part, push away the frame and be close to eccentric disc one side bilateral symmetry is provided with two sets of rotation seats, the transfer line vertically runs through the rotation seat and passes through bearing running fit with this rotation seat.

Preferably, the support comprises two groups of rotating plates which support the longitudinal shaft to rotate and are longitudinally arranged in parallel, the bottoms of the two groups of rotating plates are longitudinally connected with a bottom plate, worm gears are coaxially fixed in the middle of the longitudinal shaft, the driving part comprises two groups of motor bases which are respectively arranged on the outer sides of the two groups of transmission assemblies, transverse shafts transversely penetrate through the middle of the two groups of motor bases, the transverse shafts are in running fit with the motor bases, motors which drive the transverse shafts to rotate are fixed on the outer sides of the motor bases, and two groups of worms which drive the worm gears to rotate are arranged on the outer sides of the transverse shafts.

Preferably, a restraint groove longitudinally penetrates through the eccentric position of the outer side of the eccentric disc, a restraint block fixedly supporting the transmission rod is slidably matched in the middle of the restraint groove, a screw rod penetrating through the restraint block is rotatably matched in the inner side of the restraint groove along the length direction of the restraint groove, the screw rod is in threaded fit with the restraint block, and a knob is fixed at one end of the screw rod penetrating out of the eccentric disc.

Preferably, the support bracket is a C-shaped frame with an upward opening, two groups of limiting frames extending vertically are fixed on the left and right sides of opposite sides of the support bracket, auxiliary plates are arranged above the pushing frames, two groups of limiting frames penetrate through two ends of the auxiliary plates respectively, the auxiliary plates are in vertical sliding fit with the limiting frames, and baffle plates for preventing the auxiliary plates from falling out of the limiting frames are fixed on two ends of the auxiliary plates.

Preferably, the middle part of the auxiliary plate vertically penetrates through a chute for accommodating the penetration of the stay bar, and the width of the chute is larger than that of the stay bar.

Preferably, the top frame is fixed at the top of the support bracket, the top frame is of a vertically through rectangular square frame structure, a plurality of groups of positioning blocks which are transversely and uniformly distributed are arranged in the top frame, through grooves longitudinally penetrate through the middle of the top frame, the top of each positioning block protrudes upwards to form an inverted V-shaped slope structure, and the front side and the rear side of each positioning block transversely penetrate through side grooves of the top frame in a sliding fit mode.

Preferably, the middle part of the positioning block is transversely fixed with a mounting plate, the middle part of the mounting plate is longitudinally penetrated with a compression bar, two groups of opposite sides of the top frame are respectively provided with racks extending along the length direction of the compression bar, and one end of the compression bar, which is close to the racks, penetrates out of the through groove and is fixed with clamping teeth for clamping the racks.

Preferably, one end of the compression bar, which is far away from the rack, penetrates out of the through groove and is fixedly provided with a pressure plate, a compression spring is sleeved on the outer side of the compression bar between the pressure plate and the mounting plate, the compression bar is in clearance fit with the mounting plate, and the compression stroke of the compression spring is larger than the clamping depth of the clamping teeth and the rack.

The beneficial effects are that: according to the invention, a front pushing frame and a rear pushing frame which are supported by an eccentric disc are arranged to carry out periodical stepping feeding along the length direction of a supporting bracket, a plurality of groups of supporting rods capable of being pushed down are arranged on the pushing frame, so that when the pushing frame is supported by the eccentric disc to be lifted to be in contact with the steel pipe workpiece, rollers at the top ends of the supporting rods are pressed to automatically move downwards, and then a pit-shaped supporting structure for accommodating the steel pipe workpiece to move upwards and separate from a top frame is automatically formed, so that the pushing frame is driven by the eccentric disc to stably support the steel pipe workpiece, and the pushing feeding and discharging stability of the steel pipe workpiece is ensured;

meanwhile, when the pushing frame moves in a translation and lifting mode to support the steel pipe workpiece for stepping feeding, the roller at the top end of the supporting rod is used for supporting the steel pipe workpiece, and when the pushing frame and the auxiliary plate slide transversely and relatively, the roller in a downward pressing state of the bottom side of the steel pipe is supported by the auxiliary plate to roll, so that the steel pipe workpiece supported by the upper portion of the roller support rolls, the steel pipe is rotated and turned over, and heating uniformity of the steel pipe is ensured;

in addition, the inner side of the top frame can be used as a positioning block of the steel pipe workpiece limiting structure to adjust the position according to requirements, so that the heating requirements of steel pipe workpieces with different distances are adapted, the position of the transmission rod on the eccentric disc can be adjusted according to the transverse moving distance of the steel pipe workpiece which is required to be pushed in a single rotation action, and the heating speed requirements of different products are adapted, so that the application is wider.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view block diagram of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a partial perspective view of the present invention;

FIG. 4 is a schematic view of the structural disassembly of the present invention;

FIG. 5 is a schematic perspective view of a transmission assembly of the present invention;

FIG. 6 is a schematic view of the transmission assembly of the present invention in a disassembled configuration;

FIG. 7 is a schematic perspective view of a pushing frame of the present invention;

FIG. 8 is a schematic perspective view of an eccentric disc of the present invention;

FIG. 9 is a schematic perspective view of a top frame of the present invention;

FIG. 10 is an enlarged view of the structure at A of FIG. 9;

FIG. 11 is a schematic perspective view of a positioning block according to the present invention;

fig. 12 is a schematic perspective view of another direction of the positioning block according to the present invention.

The reference numerals are explained as follows:

1. a support bracket; 2. pushing a frame; 201. a brace rod; 202. a roller; 203. a baffle ring; 204. a spring; 205. a rotating seat; 3. a transmission assembly; 301. a bracket; 302. a longitudinal axis; 302a, worm gear; 303. an eccentric disc; 303a, a constraining tank; 304. a transmission rod; 305. a screw; 305a, a knob; 306. a constraint block; 4. a top frame; 401. a positioning block; 402. a rack; 403. a through groove; 404. a pressure plate; 405. a mounting plate; 406. a pressure spring; 407. a compression bar; 408. a lock plate; 408a, latches; 5. a driving section; 501. a motor base; 502. a motor; 503. a horizontal axis; 503a, a worm; 6. an auxiliary plate; 601. a chute; 602. a baffle; 7. a limiting frame; 8. a furnace body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.

Referring to fig. 1-12, the invention provides an automatic pushing and discharging device of a heating furnace, which comprises two groups of support brackets 1 and two groups of pushing frames 2, wherein the two groups of pushing frames 2 are arranged on opposite sides of the two groups of support brackets 1 in parallel, the pushing frames 2 are used as a bearing structure for supporting round workpieces to be fed into and discharged from a furnace body 8, two groups of transmission assemblies 3 are transversely and symmetrically arranged on the inner sides of the two groups of pushing frames 2, a driving part 5 is arranged in the middle of the two groups of transmission assemblies 3, top frames 4 for supporting heating workpieces are arranged on the tops of the two groups of support brackets 1, the furnace body 8 is of a through structure with openings on two sides, and the workpieces placed on the top frames 4 are periodically transversely pushed by the pushing frames 2 so as to realize the completion of pushing and discharging actions of the workpieces in a stepping movement manner into the furnace body 8;

the transmission assembly 3 comprises a bracket 301 and a longitudinal shaft 302 longitudinally arranged at the top end of the bracket 301, wherein eccentric discs 303 are arranged at the front end and the rear end of the longitudinal shaft 302, a transmission rod 304 for supporting the pushing frame 2 to upwards support a heating workpiece to carry out material conveying action is arranged at the eccentric position of the outer end surface of the eccentric discs 303, the transmission rod 304 is in running fit with the pushing frame 2, and the transmission rod 304 at the eccentric position of the outer end surface of the eccentric discs 303 can support the pushing frame 2 to rotate up and down in a translational state in the rotating process of the eccentric discs 303.

As an alternative embodiment, the pushing frame 2 is a rectangular square frame structure extending transversely, a plurality of groups of supporting rods 201 uniformly distributed transversely are vertically arranged in the middle of the pushing frame 2 in a penetrating manner, rollers 202 are rotatably arranged on the front side and the rear side of the top ends of the supporting rods 201, a baffle ring 203 is fixed on the outer side of the supporting rods 201 in the middle of the pushing frame 2, springs 204 propping against the inner bottom side of the pushing frame 2 are sleeved on the outer side of the supporting rods 201 below the baffle ring 203, the top ends of the springs 204 prop against the baffle ring 203 to ensure that the supporting rods 201 are in an upward propping state, so that when the rollers 202 at the top ends of the supporting rods 201 contact a workpiece to be pushed, the compression springs 204 can be moved downwards to form a supporting structure supporting a round workpiece through the matching of the plurality of groups of supporting rods 201 with the rollers 202 at the top ends, in particular, the distance between the rollers 202 at the top ends of two adjacent groups of supporting rods 201 is smaller than the diameter of the round workpiece to be supported, the distance between the rollers 202 at the top ends of two adjacent groups of supporting rods 201 is larger than the radius of a supported round workpiece, when the round workpiece contacts and presses down a certain group of rollers 202 and supporting rods 201, the supporting rods 201 at adjacent positions of the rollers do not simultaneously press down and move, so that the two groups of supporting rods 201 adjacent to the outside of the group of supporting rods 201 in a pressed down state can block and limit the round workpiece, the round workpiece can be stably supported on the pushing frame 2, the supporting rods 201 are of rectangular strip structures, rectangular through holes for accommodating vertical sliding of the supporting rods 201 are vertically penetrated in the middle of the pushing frame 2, the supporting state of the supporting rods 201 on the workpiece is prevented from being influenced by rotation of the supporting rods 201, two groups of rotating seats 205 are symmetrically arranged at one side of the pushing frame 2 close to the eccentric disc 303, the transmission rods 304 longitudinally penetrate through the rotating seats 205 and are in rotating fit with the rotating seats 205 through bearings, the eccentric disc 303 and the pushing frame 2 can be rotationally connected by utilizing the rotating seat 205 to be matched with the transmission rod 304;

the bracket 301 comprises two groups of rotating plates which support the rotation of a longitudinal shaft 302 and are longitudinally arranged in parallel, the bottoms of the two groups of rotating plates are longitudinally connected with a bottom plate, the middle part of the longitudinal shaft 302 is coaxially fixed with a worm wheel 302a, the driving part 5 comprises two groups of motor bases 501 which are respectively arranged outside the two groups of transmission components 3, the middle parts of the two groups of motor bases 501 transversely penetrate through a transverse shaft 503, the transverse shaft 503 is in rotating fit with the motor bases 501, a motor 502 which drives the transverse shaft 503 to rotate is fixed outside the motor bases 501, two groups of worms 503a which drive the worm wheel 302a to rotate are arranged outside the transverse shaft 503, so that the transverse shaft 503 is utilized to drive the two groups of eccentric discs 303 to synchronously rotate, the two groups of pushing frames 2 can rotate in a translational gesture to complete periodic pushing of workpieces, the eccentric part outside the eccentric part of the eccentric discs 303 longitudinally penetrates through a constraint groove 303a, the middle part of the constraint groove 303a is in sliding fit with a constraint block 306 which fixedly supports a transmission rod 304, the inside of the constraint groove 303a is rotatably matched with a screw rod 305 penetrating through a constraint block 306 along the length direction of the constraint groove, the screw rod 305 is in threaded fit with the constraint block 306, one end of the screw rod 305 penetrating through the eccentric disc 303 is fixedly provided with a knob 305a, screw nuts are in threaded fit with the outside of the screw rod 305 on the upper side and the lower side of the constraint block 306, the position stability of the constraint block 306 on the outer side of the screw rod 305 is kept through two groups of screw nuts, when the position of a transmission rod 304 is required to be adjusted to change the transverse moving pushing distance of the eccentric disc 303 supporting the pushing frame 2 to push a workpiece, the screw nuts are rotated to separate the constraint block 306, then the knob 305a is rotated to drive the screw rod 305 to rotate, the constraint block 306 is driven to slide in the constraint groove 303a by the threaded fit action of the screw rod 305 and the constraint block 306, the position of the transmission rod 304 is supported by the constraint block 306 to realize the distance adjustment process of the transmission rod 304 and the longitudinal axis 302, so that the transverse moving distance of the pushing frame 2 for pushing the workpiece in the process of rotating the eccentric disc 303 for one circle can be changed, and the pushing speed of the workpiece can be changed;

the support brackets 1 are C-shaped frame bodies with upward openings, limiting frames 7 which extend vertically are fixed on the left side and the right side of the opposite sides of the two groups of support brackets 1, auxiliary plates 6 are arranged above the two groups of pushing frames 2, two groups of limiting frames 7 are penetrated out of the two groups of auxiliary plates 6 respectively, the auxiliary plates 6 are in vertical sliding fit with the limiting frames 7, baffle plates 602 which prevent the auxiliary plates 6 from being separated from the limiting frames 7 are fixed on the two ends of the auxiliary plates 6, sliding grooves 601 which contain supporting rods 201 and penetrate out are vertically penetrated in the middle of the auxiliary plates 6, the width of the sliding grooves 601 is larger than that of the supporting rods 201, free sliding of the supporting rods 201 in the sliding grooves 601 is ensured, when the eccentric disc 303 drives the pushing frames 2 to perform translational rotation, the pushing frames 2 and the auxiliary plates 6 generate transverse relative sliding, meanwhile, the rollers 202 pressed by round workpieces are contacted with the auxiliary plates 6, the rollers 202 are driven to rotate by the transverse relative sliding actions generated by the auxiliary plates 6 and the rollers 202, and further the round workpieces are supported by the rollers 202 to perform rotary turnover, and the heating uniformity of the round workpieces is promoted;

the top frame 4 is fixed at the top of the support bracket 1, and the top frame 4 is of a vertically through rectangular square frame structure, a plurality of groups of positioning blocks 401 which are transversely and uniformly distributed and are used for separating round workpieces are arranged in the top frame 4, through grooves 403 are longitudinally formed in the middle of the top frame 4, the tops of the positioning blocks 401 are upwards protruded to form an inverted V-shaped slope structure, adjacent round workpieces are conveniently separated, side grooves which are in sliding fit with the top frame 4 are transversely formed in the front side and the rear side of the positioning blocks 401, the positioning blocks 401 can transversely and stably slide in the middle of the top frame 4, a mounting plate 405 is transversely fixed in the middle of the positioning blocks 401, a compression bar 407 is longitudinally formed in the middle of the mounting plate 405 in a penetrating manner, racks 402 extend along the length direction of the opposite sides of the two groups of top frames 4, the compression bar 407 are close to one ends of the racks 402, through grooves 403 are fixedly connected with clamping teeth 408a of the racks 402 in a penetrating manner, the transverse positions of the positioning blocks 401 are locked, the compression bar 407 are far away from one ends of the racks 402, the through grooves 403 are fixedly connected with a pressing plate 404, a compression spring 406 is sleeved on the outer side of the compression bar 407, the compression bar 404, the compression bar 407 is capable of being matched with the compression spring 404 in a compression bar 408 in a clamping mode, the compression groove 408 is capable of being matched with the compression bar 408 in a size, and the compression groove 408 is not matched with the rack 408, and the compression bar 408 is matched with the compression bar 408, and the compression depth of the compression bar is convenient to be matched with the compression bar 408, and compressed tightly, and matched with the compression bar 408, and compressed compression bar 408.

With the adoption of the structure, when steel pipe workpieces are required to be fed into the furnace body 8 for heating, two ends of the steel pipe workpieces are respectively placed on the upper sides of two groups of top frames 4 in advance, adjacent steel pipe workpieces are separated through the positioning blocks 401, then the transverse shafts 503 are driven to rotate through the motors 502, the worm gears 302a are driven by the worms 503a on the transverse shafts 503 to support the two groups of longitudinal shafts 302 to synchronously rotate, the eccentric discs 303 at the end parts of the longitudinal shafts 302 drive the transmission rods 304 to rotate, the transmission rods 304 support the pushing frame 2 to rotate in a translational state, when the pushing frame 2 is supported by the eccentric discs 303 to rotate upwards beyond the height of the top frame 4, the rollers 202 at the top ends of the groups of supporting rods 201 on the pushing frame 2 contact with round workpieces, the rollers 202 and the supporting rods 201 in a plurality of the contact state are pressed downwards through the dead weight of the workpieces, the rollers 202 and the supporting rods 201 in a pit structure for supporting the round workpieces are formed, the positions of the round workpieces are limited through the supporting rods 201 in the plurality of the groups of the transverse shafts 503, the round workpieces can be lifted upwards through the round workpieces placed on the pushing frame 2, the round workpieces separated from the top frames 4 can be pushed downwards in a translational state, the round workpieces separated from the top frames 2 can be pushed downwards in a horizontal direction, and then the round workpieces are pushed downwards in a round frame 2 is pushed downwards in a horizontal direction, and the round frame 2 is pushed downwards in a round frame 2 is pushed in a horizontal direction, and then the round workpiece is pushed in a round frame 2 is pushed round position by the round frame 2, and the round workpiece is pushed in a round frame is pushed round position by the round frame, and is subjected to a round workpiece is subjected to a round motion; when the pushing frame 2 is lifted upwards to support the round workpiece, the pushing frame 2 is lifted upwards and has a transverse movement, the top side of the pushing frame 2 pushes the auxiliary plate 6 to enable the auxiliary plate 6 to move upwards and downwards synchronously, at the moment, the pushing frame 2 and the auxiliary plate 6 transversely and relatively slide, the roller 202 at the top end of the round workpiece pressing supporting rod 201 is contacted with the auxiliary plate 6, the roller 202 is driven to rotate through the relative sliding movement of the auxiliary plate 6 and the pushing frame 2, and the round workpiece is supported to rotate by the roller 202 in a rotating state, so that the round workpiece is automatically turned over in the pushing process, and the heating uniformity of the workpiece is promoted;

the eccentric disc 303 is arranged to support the front group of pushing frames 2 and the rear group of pushing frames 2 to carry out periodical stepping feeding along the length direction of the supporting frame 1, a plurality of groups of supporting rods 201 capable of being pushed down are arranged on the pushing frames 2, so that when the pushing frames 2 are supported by the eccentric disc 303 to be lifted up to contact with the steel pipe workpieces, the rollers 202 at the top ends of the supporting rods 201 are pressed to automatically move down, and then a pit-shaped supporting structure for accommodating the steel pipe workpieces to move upwards and separate from the top frame 4 is automatically formed, so that the pushing frames 2 can be driven by the eccentric disc 303 to stably support the steel pipe workpieces, and the pushing feeding and discharging stability of the steel pipe workpieces is ensured;

meanwhile, when the pushing frame 2 moves in a translational and lifting manner to support the steel pipe workpiece for stepping feeding, the roller 202 at the top end of the supporting rod 201 is used for supporting the steel pipe workpiece, and when the pushing frame 2 and the auxiliary plate 6 slide transversely and relatively, the roller 202 in a state that the bottom side of the steel pipe is supported by the auxiliary plate 6 to be pressed down rolls, so that the steel pipe workpiece supported by the upper side is supported by the roller 202 to roll, the steel pipe is turned over in a rotating manner, and the heating uniformity of the steel pipe is ensured;

in addition, the position of the positioning block 401 serving as a steel pipe workpiece limiting structure on the inner side of the top frame 4 can be adjusted according to requirements, so that the heating requirements of steel pipe workpieces with different distances are adapted, the position of the transmission rod 304 on the eccentric disc 303 can be adjusted according to the transverse moving distance of the steel pipe workpiece which is required to be pushed by single rotation, and the heating speed requirements of different products are further adapted, so that the application is wider.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An automatic pushing and discharging device of a heating furnace is characterized in that: the device comprises two groups of support brackets (1) and two groups of pushing frames (2), wherein the two groups of pushing frames (2) are arranged on opposite sides of the two groups of support brackets (1) in parallel, two groups of transmission assemblies (3) are symmetrically arranged on the inner sides of the two groups of pushing frames (2) in the transverse direction, driving parts (5) are arranged in the middle of the two groups of transmission assemblies (3), and top frames (4) for supporting heating workpieces are arranged at the tops of the two groups of support brackets (1);

the transmission assembly (3) comprises a support (301) and a longitudinal shaft (302) longitudinally arranged at the top end of the support (301), eccentric discs (303) are arranged at the front end and the rear end of the longitudinal shaft (302), and a transmission rod (304) for supporting the pushing frame (2) to upwards support the heating workpiece to carry out material conveying action is arranged at the eccentric position of the outer end face of the eccentric discs (303).

2. The automatic pushing and discharging device for heating furnaces according to claim 1, wherein: the pushing frame (2) is of a rectangular square frame structure extending transversely, a plurality of groups of supporting rods (201) which are uniformly distributed transversely are vertically arranged in the middle of the pushing frame (2) in a penetrating mode, rollers (202) are rotatably arranged on the front side and the rear side of the top end of each supporting rod (201), a baffle ring (203) is fixed on the outer side of each supporting rod (201) in the middle of the pushing frame (2), and springs (204) propping against the inner bottom side of the pushing frame (2) are sleeved on the outer side of each supporting rod (201) below the baffle ring (203).

3. The automatic pushing and discharging device for heating furnaces according to claim 2, wherein: the supporting rod (201) is of a rectangular strip structure, a rectangular through hole for accommodating vertical sliding of the supporting rod (201) is vertically formed in the middle of the pushing frame (2), two groups of rotating seats (205) are symmetrically arranged on one side of the pushing frame (2) close to the eccentric disc (303) in a bilateral symmetry mode, and the transmission rod (304) longitudinally penetrates through the rotating seats (205) and is in running fit with the rotating seats (205) through bearings.

4. A heating furnace automatic pushing and discharging device according to claim 3, wherein: the support (301) comprises two groups of rotating plates which are used for supporting a longitudinal shaft (302) to rotate and are longitudinally arranged in parallel, a bottom plate is longitudinally connected to the bottoms of the two groups of rotating plates, worm gears (302 a) are coaxially fixed to the middle of the longitudinal shaft (302), the driving part (5) comprises two groups of motor bases (501) which are arranged on the outer sides of two groups of transmission assemblies (3), transverse shafts (503) transversely penetrate through the middle of the two groups of motor bases (501), the transverse shafts (503) are in running fit with the motor bases (501), motors (502) used for driving the transverse shafts (503) to rotate are fixed to the outer sides of the motor bases (501), and two groups of worms (503 a) used for driving the worm gears (302 a) to rotate are arranged on the outer sides of the transverse shafts (503).

5. The automatic pushing and discharging device for heating furnaces according to claim 4, wherein: the eccentric department in eccentric disc (303) outside is vertically run through has restraint groove (303 a), restraint groove (303 a) middle part sliding fit has fixed stay restraint piece (306) of transfer line (304), restraint groove (303 a) inboard along its length direction normal running fit has screw rod (305) that run through restraint piece (306), screw rod (305) with restraint piece (306) screw thread fit, just screw rod (305) are worn out eccentric disc (303) one end is fixed with knob (305 a).

6. The automatic pushing and discharging device for heating furnaces according to claim 5, wherein: the support bracket (1) is a C-shaped frame body with an upward opening, two groups of limiting frames (7) which extend vertically are fixed on the left side and the right side of the opposite sides of the support bracket (1), two groups of auxiliary plates (6) are arranged above the pushing frame (2), two groups of limiting frames (7) are respectively penetrated out of two ends of the auxiliary plates (6), the auxiliary plates (6) are in vertical sliding fit with the limiting frames (7), and baffle plates (602) for preventing the auxiliary plates (6) from being separated from the limiting frames (7) are fixed at two ends of the auxiliary plates (6).

7. The automatic pushing and discharging device for heating furnaces according to claim 6, wherein: a chute (601) for accommodating the stay bar (201) to penetrate out is vertically penetrated in the middle of the auxiliary plate (6), and the width of the chute (601) is larger than that of the stay bar (201).

8. The automatic pushing and discharging device for heating furnaces according to claim 7, wherein: the top frame (4) is fixed in support bracket (1) top, just top frame (4) is vertical rectangle square frame structure who link up, and this top frame (4) inside is provided with multiunit horizontal evenly distributed's locating piece (401), there is logical groove (403) in the vertical run-through in top frame (4) middle part, protruding formation "V" shape slope structure that falls in locating piece (401) top, just all transversely run through around locating piece (401) have sliding fit the limit groove of top frame (4).

9. The automatic pushing and discharging device for heating furnaces according to claim 8, wherein: the utility model discloses a rack, including locating piece (401), mounting panel (405), mounting panel (401) middle part transversely is fixed with mounting panel (405), the longitudinal run-through in mounting panel (405) has depression bar (407), two sets of opposite sides of top frame (4) all are provided with rack (402) that extend along its length direction, depression bar (407) are close to rack (402) one end is worn out logical groove (403) and is fixed with joint latch (408 a) of rack (402).

10. The automatic pushing and discharging device for heating furnaces according to claim 9, wherein: the compression bar (407) is far away from one end of the rack (402) and penetrates out of the through groove (403) and is fixedly provided with a pressure plate (404), a pressure spring (406) is sleeved outside the compression bar (407) between the pressure plate (404) and the mounting plate (405), the compression bar (407) is in clearance fit with the mounting plate (405), and the compression stroke of the pressure spring (406) is greater than the clamping depth of the clamping tooth (408 a) and the rack (402).