CN112267012A - Continuous beat pushing heat treatment process for bar - Google Patents
Continuous beat pushing heat treatment process for bar Download PDFInfo
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- CN112267012A CN112267012A CN202011062930.1A CN202011062930A CN112267012A CN 112267012 A CN112267012 A CN 112267012A CN 202011062930 A CN202011062930 A CN 202011062930A CN 112267012 A CN112267012 A CN 112267012A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 177
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000008569 process Effects 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 126
- 238000007599 discharging Methods 0.000 claims abstract description 49
- 230000000903 blocking effect Effects 0.000 claims description 52
- 230000033001 locomotion Effects 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000007669 thermal treatment Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 3
- 230000008676 import Effects 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 4
- 239000013589 supplement Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000033764 rhythmic process Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
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Abstract
The invention relates to a continuous beat pushing heat treatment process of a bar, which comprises the following steps: 1) feeding the materials one by one; 2) the heat treatment process comprises the steps of performing heat treatment one by one, enabling the bars to freely roll from the top to the bottom of a slope formed by a plurality of heat treatment tracks and sequentially pass through a preheating cavity and a heating cavity; 3) and a discharging process step one by one, wherein under the jacking of the jacking discharging unit, a single bar freely rolls towards the discharging unit after being jacked up, then the bar is conveyed out of the furnace from one side or the end part of the heat treatment furnace, and after the jacking is reset, the bar rolls down to supplement the position. On one hand, the invention avoids the formation of thermal short circuit, is stable and energy-saving, is uniformly heated, and can effectively prevent the high-temperature deformation of the bar material caused by gravity; on the other hand can realize that the rod carries out the heat treatment of continuous beat formula, can also avoid simultaneously getting to cause the interference or the collision of other rods when sending the rod to ensure the quality of the heat treatment performance of rod, can also prevent the heat altered shape of jacking member in addition.
Description
Technical Field
The invention belongs to the field of heat treatment, and particularly relates to a continuous beat pushing heat treatment process for bars.
Background
As is well known, the heat treatment process is used to change the internal structure of the workpiece, improve the strength and life of the workpiece, and therefore, the heat treatment step is an essential step for forming the workpiece.
However, a typical furnace type in the heat treatment process of bars includes a "clocked stepping furnace" which has the following steps: 1) supplying the rods one by one and continuously, and introducing the rods from an inlet of the heat treatment furnace; 2) a moving beam is formed at the bottom of the heat treatment furnace, and the bar is heated and transmitted to the outlet of the heat treatment furnace under the assistance of the moving beam; 3) and the bar materials after heat treatment pass through the discharging device of the self-heating treatment furnace from the outlet one by one to finish the processing of the bar materials.
Therefore, during the above heat treatment, it has the following drawbacks:
1) due to the arrangement of the movable beam at the bottom of the furnace, heat is easily dissipated from a gap between the movable beam and the fixed beam and is taken away by flowing water in the water sealing piece, so that thermal short circuit often occurs, a large amount of heat loss is caused, and the heat treatment cost is increased;
2) the motion of the movable beam requires power, and the loss of the power part is large under a high-temperature environment, so that the motion direction of the power part has deviation, and the motion stability of the bar material is poor;
3) the gap between the movable beam and the fixed beam causes thermal short circuit in the gap area, so that the material temperature in the area is lower than that in other areas, the heating is uneven, and the heat treatment quality is influenced;
4) traditional step furnace, the mechanism is complicated, and manufacturing, maintenance cost are high, and the bar basically keeps a state and progressively transports forward in the heat treatment process of bar simultaneously, however, the bar is under self gravity, especially in the high temperature region, causes the deformation of bar very easily, influences the quality of bar.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide an improved continuous-beat pushing heat treatment process for bars.
In order to solve the technical problems, the invention adopts the following technical scheme:
a continuous beat pushing heat treatment process for bars comprises the following steps:
1) the feeding process is used for continuously and rhythmically conveying the bars to the heat treatment furnace one by one on the stacking frame;
2) a heat treatment process for heating each bar in a heat treatment furnace;
3) a discharge step for discharging the rods after the heating treatment one by one,
in particular, it is possible to use,
in the step 2), a plurality of heat treatment tracks forming a slope surface in the heat treatment furnace are arranged, so that the bar material freely rolls from the top to the bottom of the slope surface and sequentially passes through the preheating cavity and the heating cavity;
in step 3), the adopted bar one-by-one discharging system comprises a material blocking module arranged at the tail end of each heat treatment track to block the movement of the bars, two or more groups of jacking discharging units distributed in a staggered manner with the plurality of heat treatment tracks and a furnace discharging unit arranged at the outlet of the heat treatment furnace, when the two or more groups of jacking discharging units synchronously perform jacking movement, a single bar abutting against the material blocking module in the side-by-side bars is jacked up and then freely rolls towards the furnace discharging unit, then the single bar is driven by the furnace discharging unit, one side of the bar is discharged out of the furnace along the length direction of the bar or freely rolls out of the furnace at the end part of the self-heating treatment furnace, and after the jacking discharging units are reset, the side-by-side bars fall towards the material blocking module to form a rolling compensation position, and the jacking and resetting processes are repeated, so that the side-by-side.
Preferably, the discharge hole for conveying the rods one by one in the step 1) is located above the slope, wherein an angle formed by the slope and a horizontal plane is 3-10 degrees.
Further, the angle that domatic and horizontal plane formed is 4~ 6. In this example, the slope surface forms a slope angle of 4 °. At the moment, the bars can roll freely, and when the bars are arranged at an outlet after being arranged on the track, the collision force of two adjacent bars is small, so that the heat treatment performance of the bars cannot be changed.
According to a specific implementation and preferred aspect of the invention, a material blocking groove is formed between the rear end face of each material blocking module and the rail surface of each heat treatment rail, a plurality of material blocking grooves are aligned to form a material discharging waiting area, the bars are sequentially arranged in the material discharging waiting area along the rail surface, each group of jacking and discharging units are located between two adjacent heat treatment rails, and each jacking and discharging unit comprises a jacking module capable of forming a single bar material taking area with the material blocking module, a jacking rod piece driving the jacking module to move up and down to lift or discharge materials, a driver, and a cooling assembly capable of cooling the jacking rod piece. On one hand, the jacking module is prevented from colliding with the material blocking module in the up-and-down movement process by staggering the heat treatment track and the jacking discharging unit; on the other hand, the cooling assembly is arranged, so that the thermal deformation of the jacking rod piece can be effectively prevented, and the stability of the lifting movement of the jacking rod piece is improved.
Preferably, the upper end face of the material blocking module and the upper end face of the jacking module are all inclined inwards from top to bottom, each jacking module is located behind the rear end faces of the two adjacent material blocking modules, when the jacking module pushes up the discharging waiting area upwards, a material taking area capable of storing a single rod is formed between the upper end face of the jacking module and the rear end face of the material blocking module, the upper end face of the jacking module is located above the upper end face side of the material blocking module, the upper end face of the jacking module and the upper end face of the material blocking module form a material feeding face, and the rod freely rolls to the discharging unit of the heat treatment furnace along the material feeding face. Not only be convenient for single the implementation of getting the material, can not influence moreover in case one gets the material back totally, the position can be mended automatically to the rod side by side to realize that the continuous rhythm formula is got the material.
Preferably, the upper end surface of the jacking module and the upper end surface of the material blocking module are arranged in parallel; the rear end face of the material blocking module and the front end face and the rear end face of the jacking module are arranged in parallel. On the one hand, the bar is convenient to jack up one by one, and on the other hand, the stability of the bar rising in the material taking area is improved.
Furthermore, the rear end surfaces of every two adjacent material blocking modules are aligned to form a material blocking surface, and the front end surface of the jacking module is arranged close to the material blocking surface; the distance between the material blocking surface and the rear end face of the jacking module is 0.7-1.0 time of the outer diameter of the jacked bar. The distance is not too large or too small, and once the distance is too small, the bars are easy to roll down to a discharging waiting area in the self-jacking process, so that collision among the bars is caused, and the heat treatment performance of the bars is influenced; once too big, take out two rods very easily, just so can not implement to get the material, discharge one by one.
According to another specific implementation and preferable aspect of the invention, the tapping unit comprises conveying rollers, the axes of which are perpendicular to the bars and are arranged at the front ends of the material blocking modules in a one-to-one correspondence manner, and a driving member for driving the conveying rollers to rotate in the same direction and transmitting the bars out from one side of the heat treatment furnace, wherein the conveying rollers are provided with wheel grooves which are inwards recessed from the surface and matched with the bars. Therefore, the lateral discharging mode is adopted, the heat leakage caused by opening the furnace door can be avoided, and the miniaturization layout of the heat treatment furnace is facilitated.
Preferably, the wheel groove is V-shaped or U-shaped. Therefore, under the V-shaped or U-shaped transmission, the stable transmission of the bar is realized.
Specifically, the inner wall surface of the right side of the V-shaped or U-shaped baffle plate is aligned with the upper end surface of the baffle module. Therefore, the bar can roll off freely.
In addition, the jacking rod piece comprises a jacking rod, one end of the jacking rod is positioned at the bottom of the heat treatment furnace, and the other end of the jacking rod extends into the heat treatment furnace; the guide sleeve is arranged outside the furnace bottom of the heat treatment furnace, the ejector rod movably penetrates through the guide sleeve, and the cooling assembly is used for cooling the guide sleeve.
Specifically, the cooling component is a water cooling piece; the driver is an oil cylinder, the telescopic end part is fixedly connected with the lower end part of the ejector rod, and two or more groups of oil cylinders can synchronously perform telescopic motion; the jacking rod piece also comprises a displacement sensor which is sleeved on the ejector rod and can move up and down along with the ejector rod.
Specifically, the cooling component is a water cooling piece; the driver is a jacking cylinder which moves up and down, the telescopic end part of the jacking cylinder is fixedly connected with the lower end part of the ejector rod, and two or more groups of jacking cylinders can synchronously move in a telescopic manner; the jacking rod piece also comprises a displacement sensor which is sleeved on the ejector rod and can move up and down along with the ejector rod.
In addition, the cavity in the heat treatment furnace is divided into a heating cavity and a preheating cavity, wherein the space formed between the preheating cavity from the inlet to the outlet and the slope is gradually enlarged, a high-temperature resistant baffle wall is arranged at the interface of the heating cavity and the preheating cavity, and a channel for the bars to roll off freely is formed between the bottom surface of the baffle wall and the slope. Here, the setting advantage by the barrier wall is: 1. the heating cavity and the preheating cavity can be relatively separated, and high-temperature heat radiation from the heating cavity to the preheating cavity can be effectively blocked, so that the high temperature in the heating cavity is ensured, and the heating energy consumption is reduced; 2. the hot air flow discharged from the heating cavity to the preheating cavity is fully subjected to heat exchange with the rod freely rolling down on the slope surface through the blocking wall, so that the heat exchange efficiency is improved.
Preferably, the flue gas discharge port of the heat treatment furnace is arranged close to the inlet of the heat treatment furnace, the upper end part of the heat treatment track protrudes out of the heat treatment furnace, the heat treatment furnace further comprises centering regulators arranged on two opposite sides of the inlet of the heat treatment furnace, and a pushing system arranged at the inlet of the heat treatment furnace and staggered and spaced from the heat treatment track.
Under the adjustment of the centering regulator, the bar is positioned in the middle of the slope and is kept vertical to the heat treatment track, so that the probability of collision of the bar in rolling is greatly reduced.
As for centering regulator, it includes the telescopic link that corresponds the setting in the slope side, sets up the roof at the flexible tip of telescopic link respectively, wherein adjusts by the relative concertina movement of telescopic link for the roof conflicts the both ends of rod and makes the middle part of rod and domatic central line align.
As for the pushing system, the main function is to complete the continuity of bar treatment by pushing assistance once the bars arranged on the slope surface or the rail surface are difficult to roll freely downwards.
Preferably, the driver is the jacking cylinder of up-and-down motion, and the flexible tip of jacking cylinder and the lower tip fixed connection of ejector pin, and two sets of or multiunit jacking cylinder can synchronous concertina movement.
The heat treatment furnace also comprises a material level monitor which is correspondingly arranged on the heat treatment furnace and can monitor the jacking state of the bar, wherein the material level monitor is communicated with the driver. In this case, the level monitor monitors whether the rod is ejected properly, and the drive is deactivated as soon as there is no rod.
Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:
on one hand, the bar is arranged by the heat treatment track of the slope, so that the bar can roll freely, the thermal short circuit caused by adopting a movable beam is avoided, the bar is stable and energy-saving, and is heated uniformly, and meanwhile, the bar is continuously rotated and switched in the free rolling process, so that the high-temperature deformation of the bar caused by gravity can be effectively prevented; on the other hand can realize that the rod carries out the continuous beat formula one by one and carries out thermal treatment, can also avoid simultaneously causing the interference or the collision of other rods when getting the rod to ensure the quality of the thermal treatment performance of rod, can also prevent the heat altered shape of jacking member in addition, thereby improve jacking member elevating movement's stability, simultaneously, simple structure, it is convenient to implement, and with low costs.
Drawings
The invention is described in further detail below with reference to the following figures and specific examples:
FIG. 1 is a schematic front view of a continuous rhythm heat treatment furnace according to the present invention;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a schematic front view of FIG. 1 (cross-section of the location between two adjacent outfeed tracks);
fig. 4 is a right enlarged schematic view of the dam module of fig. 3;
wherein: A. a heat treatment furnace; q1, heating cavity; q2, preheating chamber; q3, a barrier wall; a1, a smoke discharge port; a2, chimney;
B. a bar material feeding system one by one;
C. a bar discharging system one by one; 1. a material blocking module; 2. jacking a feeding sheet; 20. a jacking module; 21. jacking a rod piece; 210. a top rod; 211. a guide sleeve; 212. a displacement sensor; 22. a driver; 23. a cooling assembly; 3. a discharging unit; 30. a transmission roller; 300. a wheel groove; 31. a drive member;
D. a centering adjuster; d1, a telescopic rod; d2, top plate
E. A pushing system; e1, pushing the chuck; e2, a pushing oil cylinder;
F. a level monitor;
G. heat treating the rail;
p, a bar material;
and Q, a discharging waiting area.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
As shown in fig. 1, the continuous bar-beat heat treatment furnace includes a heat treatment furnace a, a bar-by-bar feeding system B, a bar-by-bar discharging system C, a centering regulator D, a pushing system E, and a material level monitor F.
Specifically, the heat treatment furnace A is horizontal and is provided with a heating cavity q1 and a preheating cavity q2, wherein the heating cavity q1 is positioned at the left end of the heat treatment furnace A, and the preheating cavity q2 is arranged from the communication part of the heating cavity q1 to the inlet of the heat treatment furnace A in a gradually-reduced mode.
In this example, the flue gas discharge port a1 of the heat treatment furnace A is provided near the inlet of the heat treatment furnace A, and the flue gas is exhausted through a chimney a 2. In this way, the rod is preheated by the discharged flue gas and then subjected to a heating treatment in the heating chamber q 1.
A high-temperature resistant baffle wall q3 is arranged at the interface of the heating cavity q1 and the preheating cavity q2, and a channel for the free rolling of the bar materials is formed between the bottom surface and the slope surface of the baffle wall q 3. Here, the setting advantage by the barrier wall is: 1. the heating cavity and the preheating cavity can be relatively separated, and high-temperature heat radiation from the heating cavity to the preheating cavity can be effectively blocked, so that the high temperature in the heating cavity is ensured, and the heating energy consumption is reduced; 2. the hot air flow discharged from the heating cavity to the preheating cavity is fully subjected to heat exchange with the rod freely rolling down on the slope surface through the blocking wall, so that the heat exchange efficiency is improved.
And the bar material one-by-one feeding system B adopts a conventional shifting fork type driving plate to rotate, and can continuously and rhythmically feed the bar materials to the heat treatment furnace A one by one.
Referring to fig. 2, five heat treatment tracks G are arranged in the heat treatment furnace a in parallel and at intervals, wherein the upper surfaces of the five heat treatment tracks G are flush and form a slope surface inclined from top to bottom, the inlet and the outlet of the heat treatment furnace a correspond to the upper end and the lower end of the slope surface, the discharge port of the rod one-by-one feeding system C is located above the slope surface, and the fed rods freely roll down on the slope surface.
In this example, the upper end of the heat treatment rail G is exposed from the heat treatment furnace A. The connection between the heat treatment track G and the bar material one-by-one feeding system B is convenient.
Referring to fig. 3, the rod material discharging system C includes material blocking modules 1 disposed on each heat treatment track G, two sets of jacking discharging units 2 distributed in a staggered manner with the five heat treatment tracks G, and a discharging unit 3 disposed at an outlet of the heat treatment furnace.
Specifically, the heat treatment tracks G extend from the inlet to the outlet and pass through the preheating cavity q2 and the heating cavity q1, wherein the upper surfaces of the five heat treatment tracks G are flush and form a slope surface inclined from top to bottom, the inlet and the outlet of the heat treatment furnace correspond to the upper end and the lower end of the slope surface, the discharge holes of the bar one-by-one feeding system B are located on the side of the slope surface, and the supplied bars freely roll down onto the slope surface.
In this example, the slope surface forms a slope angle of 4 °. At the moment, the bars can roll freely, and when the bars are arranged at an outlet after being arranged on the track, the collision force of two adjacent bars is small, so that the heat treatment performance of the bars cannot be changed.
In this example, the rear end face of each material blocking module 1 and the rail surface of the heat treatment rail G form a material blocking groove, a plurality of material blocking grooves are aligned to form a material discharging waiting area Q, and the rods are sequentially arranged in the material discharging waiting area Q along the rail surface.
Two sets of jacking ejection of compact units 2 correspond the both ends that set up rod P, and every jacking ejection of compact unit 2 of group is located between two adjacent heat treatment track G, and including can form single rod with keeping off material module 1 and get jacking module 20 in material district, drive jacking module 20 up-and-down motion lift material or the jacking member 21 of unloading, driver 22 and can carry out cooling treatment's cooling module 23 to jacking member 21.
Keep off the equal top-down leanin setting of up end of material module 1 and the up end of jacking module 20, and every jacking module 20 is located the rear between the adjacent two material modules 1 rear end faces, wherein when jacking module 20 upwards jacking ejection of compact waiting area Q, form the material district of getting that can deposit single rod between the up end of jacking module 20 and the rear end face of keeping off material module 1, and when jacking module 20's up end was located the up end face side top of keeping off material module 1, jacking module 20's up end and the up end of keeping off material module 1 form the feeding face, rod P freely rolls to the play stove unit 3 of heat treatment furnace along the feeding face. Not only be convenient for single the implementation of getting the material, can not influence moreover in case one gets the material back totally, the position can be mended automatically to the rod side by side to realize that the continuous rhythm formula is got the material.
The upper end surface of the jacking module 20 and the upper end surface of the material blocking module 1 are arranged in parallel; the front end face and the rear end face of the material blocking module 1 and the front end face and the rear end face of the jacking module 20 are arranged in parallel. On the one hand, the bar is convenient to jack up one by one, and on the other hand, the stability of the bar rising in the material taking area is improved.
The rear end surfaces of every two adjacent material blocking modules 1 are aligned to form a material blocking surface, and the front end surface of each jacking module is arranged close to the material blocking surface; the distance between the material blocking surface and the rear end face of the jacking module is 0.7-1.0 times of the outer diameter of the bar. The distance is not too large or too small, and once the distance is too small, the bars are easy to roll down to a discharging waiting area in the self-jacking process, so that collision among the bars is caused, and the heat treatment performance of the bars is influenced; once too big, take out two rods very easily, just so can not implement to get the material, discharge one by one.
In this example, the distance between the material blocking surface and the rear end surface of the jacking module is 0.8 times of the outer diameter of the bar, so that the jacking requirement can be met, the probability of thermal deformation is reduced due to small size, and the stable up-and-down movement of the jacking rod piece 21 is facilitated.
Meanwhile, in this example, a material level monitor F capable of monitoring the motion state of the material taking region of a single rod on line is further disposed at the heating cavity q1 of the heat treatment furnace a, and here, the material taking and feeding state of each rod can be effectively or regularly completed by the material level monitor F, so that the feeding of the rods is continuously and regularly completed.
Referring to fig. 4, two sets of the jacking rods 21 can synchronously drive the jacking modules 20 to move up and down, and each jacking rod 21 comprises a jacking rod 210 with one end located at the bottom of the heat treatment furnace and the other end extending into the heat treatment furnace; the guide sleeve 211 is arranged outside the furnace bottom of the heat treatment furnace, the push rod 210 is movably arranged in the guide sleeve 211 in a penetrating mode, and the cooling assembly 23 is used for cooling the guide sleeve 211.
Specifically, cooling module 23 is the water-cooling piece, that is to say, directly cools down guide sleeve 211 through the circulating water, then cools down ejector pin 210 through guide sleeve 211 after the cooling.
The driver 22 is an oil cylinder, and the telescopic end part is fixedly connected with the lower end part of the top rod 210, and the two groups of oil cylinders can synchronously perform telescopic motion.
In addition, the jacking rod member 21 further comprises a displacement sensor 212 which is sleeved on the jacking rod 210 and can move up and down along with the jacking rod 210. Here, the synchronous motion is controlled more accurately by the arrangement of the displacement sensor.
The discharging unit 3 comprises a transmission roller 30 with an axis line perpendicular to the bars P and one-to-one corresponding to the front end of the material blocking module 1, and a driving member 31 for driving the transmission roller 30 to rotate in the same direction and transmitting the bars P from one side of the heat treatment furnace, wherein the transmission roller 30 is provided with a wheel groove 300 which is recessed from the surface inwards and matched with the bars. Therefore, the lateral discharging mode is adopted, the heat leakage caused by opening the furnace door can be avoided, and the miniaturization layout of the heat treatment furnace is facilitated.
In this example, the wheel groove is V-shaped. Thus, under the V-shaped conveying, the stable conveying of the bar is realized.
Specifically, the inner wall surface of the right side of the V-shaped baffle plate is aligned with the upper end surface of the baffle module. Therefore, the bar can roll off freely.
And the centering regulators D are arranged on two opposite sides of the inlet of the heat treatment furnace, so that the bar is positioned in the middle of the slope surface and is kept vertical to the heat treatment track under the regulation of the centering regulators, and the probability of collision of the bar in rolling is greatly reduced.
As for the centering adjuster D, it includes the telescopic rod D1 correspondingly disposed on the slope side, the top plate D2 respectively disposed at the telescopic end of the telescopic rod D1, wherein the relative telescopic movement of the telescopic rod D1 adjusts, so that the top plate D2 collides with the two ends of the bar P, causing the middle of the bar P to align with the center line of the slope.
The pushing and feeding system E has the main function that once the bars arranged on the slope surface or the rail surface are difficult to freely roll downwards, the continuity of bar treatment is perfected through pushing assistance.
In this example, the pushing system E includes a pushing chuck E1 and a pushing cylinder E2, wherein a bayonet matched with the rod P is formed at an end of the pushing chuck E1.
In summary, the implementation process of this embodiment is as follows:
1) the shifting fork type driving plate rotates, a rod is hooked and freely rolls and is conveyed to the heat treatment furnace along the feeding direction of the stacking frame in each rotating period, and meanwhile, the rod supplies materials to the top of the slope surface one by one and in a continuous beat mode under the assistance of the pushing motion of the pushing chuck;
2) the bars entering the top of the slope freely roll along the angle of the slope under the adjustment of the centering regulators at the two end parts, and sequentially pass through the preheating cavity and the heating cavity for heat treatment, wherein if a plurality of bars side by side roll forwards, the bar at the top of the slope is pushed by a material pushing system to roll forwards, so that the bars continuously roll towards a discharging waiting area in a beat mode, and at the moment, the plurality of bars are arranged side by side at the bottom of the slope in the discharging waiting area;
3) the synchronous jacking motion of two sets of jacking feeding units, a single bar that leans on keeping off the material module in the rod side by side is jacked up, when the up end of jacking module is located the up end side top that keeps off the material module, the up end of jacking module and the up end of keeping off the material module form the pay-off face, the rod freely rolls to the race of the transmission gyro wheel of heat treatment furnace along the pay-off face, then under the syntropy transmission of transmission gyro wheel, the rod spreads out the heat treatment furnace along one side of self length direction self-heating treatment furnace, simultaneously after jacking feeding unit resets, the rod that is side by side rolls to keeping off the material module and mends the position, repeat above-mentioned jacking and reset process, realize that the rod carries out the continuous and beat formula of getting the pay-off side by side.
In summary, the present embodiment has the following advantages:
1. the heat treatment track forming the slope is arranged, so that the bar can roll freely, the thermal short circuit caused by adopting a movable beam is avoided, the stability and the energy conservation are realized, and the heat treatment cost is low;
2. in the free rolling process of the bar, the bar is continuously rotated and switched, so that the high-temperature deformation of the bar caused by gravity can be effectively prevented;
3. in the jacking process of the jacking module, the rods in the material taking area can be stably lifted, the rods in the material discharging waiting area can be stably arranged, and meanwhile, when the jacking module is retracted below the material discharging waiting area, the rods arranged side by side can automatically move to the material blocking module to supplement positions, so that jacking discharging can be continuously completed in a beat mode, and meanwhile, the interference or collision of other rods caused by taking and delivering the rods can be avoided, so that the quality of the heat treatment performance of the rods is ensured;
4. the jacking rod piece is cooled by the cooling assembly to prevent thermal deformation of the jacking rod piece, so that the lifting movement stability of the jacking rod piece is improved;
5. the upper end surface of the jacking module is aligned with the upper end surface of the material blocking module to form a feeding surface of the stroke, so that the bar material can freely roll to a discharging area;
6. monitoring whether the bar is ejected normally or not through a level monitor, and stopping the driver once no bar exists;
7. through the staggering of the heat treatment track and the jacking discharging unit, the collision between the jacking module and the material blocking module in the up-and-down movement process is avoided; meanwhile, the upper end surface of the jacking module and the upper end surface of the material blocking module are arranged in parallel; the rear end face of the material blocking module and the front end face and the rear end face of the jacking module are arranged in parallel, so that the bars are jacked up one by one, the stability of lifting of the bars in the material taking area is improved, the implementation of taking one bar is facilitated, and the automatic position supplement of the side-by-side bars can be realized after one bar is completely taken, so that the continuous beat type material taking is realized;
8. the side discharging mode is adopted, so that heat leakage caused by opening a furnace door can be avoided, the implementation is convenient, the influence on the atmosphere in the furnace is avoided, the heat treatment quality of the bar is ensured, the miniaturized layout of the heat treatment furnace is facilitated, the bar can be stably positioned in the V-shaped or U-shaped wheel groove, and the bar is stably conveyed out under the same-direction transmission of the transmission rollers;
9. the centering regulator is arranged to enable the bar to be positioned in the middle of the slope surface and to be kept vertical to the heat treatment track, so that the probability of collision of the bar in rolling is greatly reduced;
10. once the bar materials which are arranged on the slope surface or the rail surface side by side are difficult to freely roll downwards, the continuity and the metronomic property of the bar material processing are perfected through the pushing assistance;
11. by the arrangement of the blocking wall, on one hand, the heating cavity and the preheating cavity can be relatively separated, and high-temperature heat radiation from the heating cavity to the preheating cavity can be effectively blocked, so that high temperature in the heating cavity is ensured, and heating energy consumption is reduced; on the other hand, hot air flow discharged from the heating cavity to the preheating cavity is fully subjected to heat exchange with the freely rolled rods on the slope surface downwards through the blocking wall, so that the heat exchange efficiency is improved;
12. the inner wall surface of the right side of the V shape is aligned with the upper end surface of the material blocking module, so that the bar materials can roll freely.
The present invention has been described in detail in order to enable those skilled in the art to understand the invention and to practice it, and it is not intended to limit the scope of the invention, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.
Claims (10)
1. A continuous beat pushing heat treatment process for bars comprises the following steps:
1) the feeding process is used for continuously and rhythmically conveying the bars to the heat treatment furnace one by one on the stacking frame;
2) a heat treatment process for heating each bar in a heat treatment furnace;
3) a discharge step for discharging the rods after the heating treatment one by one,
the method is characterized in that:
in the step 2), a plurality of heat treatment tracks forming a slope surface in the heat treatment furnace are arranged, so that the bar material freely rolls from the top to the bottom of the slope surface and sequentially passes through the preheating cavity and the heating cavity;
in step 3), the adopted bar one-by-one discharging system comprises a material blocking module arranged at the tail end of each heat treatment track to block the movement of the bars, two or more groups of jacking discharging units distributed in a staggered manner with the plurality of heat treatment tracks and a furnace discharging unit arranged at the outlet of the heat treatment furnace, when the two or more groups of jacking discharging units synchronously perform jacking movement, a single bar abutting against the material blocking module in the side-by-side bars is jacked up and then freely rolls towards the furnace discharging unit, then the single bar is driven by the furnace discharging unit, one side of the bar is discharged out of the furnace along the length direction of the bar or freely rolls out of the furnace at the end part of the self-heating treatment furnace, and after the jacking discharging units are reset, the side-by-side bars fall towards the material blocking module to form a rolling compensation position, and the jacking and resetting processes are repeated, so that the side-by-side.
2. The continuous-beat pushing heat treatment process for bars according to claim 1, characterized in that: the discharge hole of the bar materials conveyed one by one in the step 1) is located above the slope, wherein the angle formed by the slope and the horizontal plane is 3-10 degrees.
3. The continuous-beat pushing heat treatment process for bars according to claim 1, characterized in that: every keep off the rear end face of material module with the orbital track face of thermal treatment forms and keeps off the silo, and is a plurality of keep off the silo and align and form the ejection of compact and wait the district, the rod along the track face arrange in proper order the ejection of compact waits the district, every group jacking ejection of compact unit is located adjacent two between the thermal treatment track, and including can with keep off the material module and form single rod and get jacking module, the drive that the material was distinguished to jacking module up-and-down motion lift material or unload jacking member, driver and can be right the cooling assembly that the jacking member carries out cooling and handles.
4. The continuous-beat pushing heat treatment process for bars according to claim 1, characterized in that: keep off the up end of material module with the equal top-down leanin setting of up end of jacking module, and every the jacking module be located adjacent two keep off the rear between the material module rear end face, wherein jacking module jacking upwards when the ejection of compact waits for the district, jacking module's up end with keep off the material district of getting that forms between the rear end face of material module and can deposit single rod, just jacking module's up end is located during the up end face side top of keeping off the material module, jacking module's up end with keep off the up end of material module and form the pay-off face, the rod along the pay-off face freely rolls to the play stove unit of heat treatment furnace.
5. Continuous-beat pushing heat treatment process of bars according to claim 4, characterized in that: the upper end surface of the jacking module and the upper end surface of the material blocking module are arranged in parallel; the rear end face of the material blocking module and the front end face and the rear end face of the jacking module are arranged in parallel.
6. Continuous-beat pushing heat treatment process of bars according to claim 5, characterized in that: the rear end surfaces of every two adjacent material blocking modules are aligned to form a material blocking surface, and the front end surface of each jacking module is arranged close to the material blocking surface; the distance between the material blocking surface and the rear end face of the jacking module is 0.7-1.0 time of the outer diameter of the ejected bar.
7. Continuous-beat push heat treatment process of bars according to claim 1 or 4, characterized in that: the unit of coming out of the furnace set up and the one-to-one including axial lead and rod vertical the transmission gyro wheel that keeps off material module front end and drive transmission gyro wheel syntropy rotate and with the rod from the driving piece that heat treatment furnace one side spread, wherein the transmission gyro wheel on be equipped with from the inside sunken race that just matches of surface with the rod, the race be V type or U type, and from V type or U type right side internal face with keep off material module up end and align the setting.
8. The continuous-beat pushing heat treatment process for bars according to claim 1, characterized in that: the two or more groups of jacking rod pieces can synchronously drive the jacking modules to move up and down, and each jacking rod piece comprises a jacking rod, one end part of each jacking rod piece is positioned at the bottom of the heat treatment furnace, and the other end part of each jacking rod piece extends into the heat treatment furnace; the guide sleeve is arranged outside the furnace bottom of the heat treatment furnace, the ejector rod movably penetrates through the guide sleeve, and the cooling assembly is used for cooling the guide sleeve.
9. The continuous-beat pushing heat treatment process for bars according to claim 1, characterized in that: the cavity in the heat treatment furnace divide into heating chamber and preheating chamber, wherein the preheating chamber sets up to the space that forms between export and the domatic progressively grow from the import, and the kneck of heating chamber and preheating chamber be equipped with high temperature resistant separation wall, separation wall bottom surface with form the passageway that supplies the rod to roll freely between the domatic, at this moment, from the heating chamber to preheating chamber exhaust hot-air current, carry out abundant heat exchange through separation wall downwards and domatic on the rod that freely rolls.
10. The continuous-beat pushing heat treatment process for bars according to claim 1, characterized in that: the upper end of the heat treatment track protrudes out of the heat treatment furnace, the heat treatment furnace further comprises centering regulators arranged on two opposite sides of an inlet of the heat treatment furnace and a pushing system arranged at the inlet of the heat treatment furnace and staggered with the heat treatment track, when the bar is sent into the heat treatment furnace, the bar is enabled to be perpendicular to a track surface through relative abutting regulation of the centering regulators, the middle of the bar is aligned with the center line of the slope surface, meanwhile, the bar freely rolls down on the slope surface after entering the heating furnace, and when the bar cannot automatically roll forward, the pushing system pushes the bar at the moment, so that the bar is continuously and regularly conveyed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117187525A (en) * | 2023-09-20 | 2023-12-08 | 常州润来科技有限公司 | High-efficiency annealing furnace for high-quality oxygen-free copper pipe and control method thereof |
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