CN112268458A - Continuous beat type heat treatment furnace for bar - Google Patents
Continuous beat type heat treatment furnace for bar Download PDFInfo
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- CN112268458A CN112268458A CN202011062944.3A CN202011062944A CN112268458A CN 112268458 A CN112268458 A CN 112268458A CN 202011062944 A CN202011062944 A CN 202011062944A CN 112268458 A CN112268458 A CN 112268458A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 121
- 239000000463 material Substances 0.000 claims abstract description 129
- 230000000903 blocking effect Effects 0.000 claims abstract description 42
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000033001 locomotion Effects 0.000 claims description 18
- 238000007669 thermal treatment Methods 0.000 claims description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 5
- 230000008676 import Effects 0.000 claims 4
- 238000007664 blowing Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 9
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000005855 radiation 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
- 230000033764 rhythmic process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 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
- 230000001020 rhythmical 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/12—Travelling or movable supports or containers for the charge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
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Abstract
The invention relates to a bar continuous beat type heat treatment furnace, which comprises a furnace body, a bar one-by-one feeding system and a bar one-by-one discharging system, wherein a plurality of heat treatment rails which are parallel to each other and distributed at intervals are arranged in the furnace body, and the upper surfaces of the plurality of heat treatment rails are flush and form a slope surface which is inclined from top to bottom; the rod material one-by-one discharging system comprises a material blocking module, a jacking discharging unit and a furnace discharging unit. 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, the continuous beat type heat treatment of the bars can be realized one by one, and meanwhile, the interference or collision of other bars caused when the bars are taken and sent can be avoided, so that the quality of the heat treatment performance of the bars is ensured, and in addition, the thermal deformation of the jacking bar can be prevented.
Description
Technical Field
The invention belongs to the field of heat treatment, and particularly relates to a continuous beat type heat treatment furnace 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 invention aims to overcome the defects of the prior art and provide an improved bar continuous beat type heat treatment furnace.
In order to solve the technical problems, the invention adopts the following technical scheme:
a bar continuous beat type heat treatment furnace, which comprises a furnace body, a bar one-by-one feeding system and a bar one-by-one discharging system,
a plurality of heat treatment rails which are parallel to each other and distributed at intervals are arranged in the furnace body, wherein the upper surfaces of the heat treatment rails are flush and form a slope surface which is inclined from top to bottom, the inlet and the outlet of the furnace body correspond to the upper end and the lower end of the slope surface, the discharge hole of the rod material one-by-one feeding system is positioned above the slope surface, and the fed rod materials freely roll down on the slope surface;
the rod is ejection of compact system one by one including setting up the fender material module on every thermal treatment track, with many thermal treatment track staggered distribution's two sets of or multiunit jacking ejection of compact unit and the unit of drawing a stove of setting in the furnace body exit, wherein every keeps off the rear end face of material module and forms the fender silo with the orbital track face of thermal treatment, and a plurality of fender silos align and form ejection of compact waiting area, and the rod is arranged in proper order at ejection of compact waiting area along the track face, and every group jacking ejection of compact unit is located adjacent two between the thermal treatment track, and including can form single rod with the fender material module and get jacking module, the jacking member, the driver that material or unload of material, and can carry out cooling treatment's cooling module to the jacking member.
Preferably, the angle formed by the slope surface and the 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 preferable aspect of the invention, the upper end surfaces of the material blocking modules and the upper end surfaces of the jacking modules are both obliquely arranged from top to bottom and inwards, each jacking module is positioned behind the space between the rear end surfaces of two adjacent material blocking modules, when the jacking modules jack up the discharging waiting area upwards, a material taking area capable of storing a single rod is formed between the upper end surface of each jacking module and the rear end surface of each material blocking module, and when the upper end surface of each jacking module is positioned above the upper end surface side of each material blocking module, the upper end surfaces of the jacking modules and the upper end surfaces of the material blocking modules form a material feeding surface, and the rods freely roll down to the discharging unit of the heat treatment furnace along the material feeding surface. 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 surface of the jacking module is 0.7-1.0 time of the outer diameter of the ejected 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 a specific implementation and preferable aspect of the invention, the tapping unit comprises transmission rollers and a driving piece, wherein the transmission rollers are arranged with axes vertical to the bars and are arranged at the front ends of the material blocking modules in a one-to-one correspondence manner, the driving piece drives the transmission rollers to rotate in the same direction and transmits the bars out from one side of the furnace body, and wheel grooves which are inwards recessed from the surface and matched with the bars are arranged on the transmission rollers. 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.
Preferably, 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.
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 furnace body is divided into a heating cavity and a preheating cavity, wherein the preheating cavity is gradually enlarged from an inlet to a space formed between an outlet and a slope, 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 furnace body is arranged close to the inlet of the furnace body, the upper end part of the heat treatment track protrudes out of the furnace body, the heat treatment furnace further comprises centering regulators arranged on two opposite sides of the inlet of the furnace body and a pushing material system arranged at the inlet of the furnace body and staggered and separated 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, causes the middle part of rod and domatic central line alignment.
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 furnace body and can monitor the jacking state of the bars, 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, rhythmic heat treatment furnace for bars 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 furnace body; 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 material 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 figure 1, the bar continuous beat type heat treatment furnace comprises a furnace body A, a bar one-by-one feeding system B, a bar one-by-one discharging system C, a centering regulator D, a pushing system E and a material level monitor F.
Specifically, the furnace body 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 furnace body A, and the preheating cavity q2 is arranged from the communicating part of the heating cavity q1 to the inlet of the furnace body A in a gradually-reduced mode.
In this example, the flue gas discharge port a1 of the furnace body a is provided near the inlet of the furnace body a, and discharges flue gas 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 the conventional shifting fork type drive plate to rotate, and can continuously and periodically feed the bar materials to the furnace body A one by one.
As shown in fig. 2, five heat treatment tracks G are arranged in the furnace body 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 furnace body a correspond to the upper end and the lower end of the slope surface, the discharge port of the rod material one-by-one feeding system C is located above the slope surface, and the fed rod material freely rolls down onto the slope surface.
In this example, the upper end of the heat treatment rail G protrudes out of the furnace body 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 furnace body.
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 furnace body inlet and the furnace body outlet correspond to the upper end and the lower end of the slope surface, the discharge holes of the rod one-by-one feeding system B are located on the side of the slope surface, and the supplied rods freely roll down on 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 embodiment, 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 furnace body 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 rod material P and one-to-one corresponding to the front end of the material blocking module 1, and a driving part 31 for driving the transmission roller 30 to rotate in the same direction and transmitting the rod material P from one side of the furnace body, wherein the transmission roller 30 is provided with a wheel groove 300 which is inwards recessed from the surface and matched with the rod material. 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 is aligned with the upper end surface of the baffle module. Therefore, the bar can roll off freely.
Centering regulators D are arranged on two opposite sides of the furnace body inlet, and under the regulation of the centering regulators, the bar is positioned in the middle of the slope and is kept perpendicular to the heat treatment track, so that 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 adjustment is made by the relative telescopic movement of the telescopic rod D1, so that the top plate D2 collides with the two ends of the bar P to align the middle of the bar P 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. The utility model provides a continuous beat formula heat treatment furnace of rod, its includes the furnace body, the rod is by a feed system, the rod is by a discharge system, its characterized in that:
a plurality of heat treatment rails which are parallel to each other and distributed at intervals are arranged in the furnace body, wherein the upper surfaces of the heat treatment rails are flush and form a slope surface which is inclined from top to bottom, the inlet and the outlet of the furnace body correspond to the upper end and the lower end of the slope surface, the discharge hole of the rod material one-by-one feeding system is positioned above the slope surface, and the fed rod material freely rolls down onto the slope surface;
the rod material discharge system that pursues root including setting up every thermal treatment is orbital keep off the material module, with many thermal treatment track on two sets of or multiunit jacking ejection of compact unit and the unit of blowing out of setting at the furnace body exit that distributes of dislocation, wherein every keep off the material module the rear end face with thermal treatment orbital track face forms and keeps off the silo, and is a plurality of keep off the silo and align and form ejection of compact waiting area, the rod along the track face arrange in proper order ejection of compact waiting area, 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 got to jacking module up-and-down moved or the jacking member, the driver of unloading and can be right the cooling subassembly that the jacking member carried out cooling and handles.
2. The continuous beat type heat treatment furnace for bars according to claim 1, characterized in that: the angle formed by the slope and the horizontal plane is 3-10 degrees.
3. The continuous beat type heat treatment furnace 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.
4. The continuous beat type heat treatment furnace for bars according to claim 3, 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.
5. The continuous beat type heat treatment furnace for bars according to claim 4, wherein: 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.
6. The continuous beat type heat treatment furnace for bars according to claim 1 or 3, characterized in that: the discharging unit can discharge the bar material out of the heat treatment furnace from one side of the heat treatment furnace along the length direction of the bar material or freely roll the bar material out of the heat treatment furnace from the end part of the heat treatment furnace.
7. The continuous beat type heat treatment furnace for bars according to claim 6, wherein: the unit of coming out of the furnace set up and the one-to-one including axial lead and rod are perpendicular and be in keep off the transmission gyro wheel of material module front end and drive transmission gyro wheel syntropy rotate and with the rod from the driving piece that furnace body one side spread, wherein the transmission gyro wheel on be equipped with from the inside sunken race that just matches of surface, the race be V type or U type, and from V type or U type right side internal face with keep off the material module up end and align the setting.
8. The continuous beat type heat treatment furnace 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 type heat treatment furnace for bars according to claim 1, characterized in that: the cavity in the furnace body divide into heating chamber and preheating chamber, wherein preheating chamber gradually enlarges the setting from the import to the space that forms between export and the domatic, and heating chamber and preheating chamber's kneck be equipped with high temperature resistant barrier wall, barrier wall bottom surface with form the passageway that supplies the rod to roll freely between the domatic.
10. The continuous beat type heat treatment furnace for bars according to claim 1, characterized in that: the flue gas discharge port of furnace body is close to the import setting of furnace body, orbital upper end of thermal treatment emits outside the furnace body, thermal treatment stove still including set up at the relative both sides of furnace body import centering regulator and set up at the furnace body import export with the orbital dislocation of thermal treatment separates the propelling movement material system that sets up mutually.
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| CN202011062944.3A CN112268458A (en) | 2020-09-30 | 2020-09-30 | Continuous beat type heat treatment furnace for bar |
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| CN202011062944.3A CN112268458A (en) | 2020-09-30 | 2020-09-30 | Continuous beat type heat treatment furnace for bar |
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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 |
| CN117265230A (en) * | 2023-09-01 | 2023-12-22 | 南京年达智能装备科技有限公司 | Intelligent quenching production line suitable for aluminum alloy melting furnace |
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Application publication date: 20210126 |