CN209792358U - hot stamping production line without oxidation heating - Google Patents
hot stamping production line without oxidation heating Download PDFInfo
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- CN209792358U CN209792358U CN201920235725.7U CN201920235725U CN209792358U CN 209792358 U CN209792358 U CN 209792358U CN 201920235725 U CN201920235725 U CN 201920235725U CN 209792358 U CN209792358 U CN 209792358U
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Abstract
The utility model discloses a hot stamping production line without oxidation heating, which comprises a press, a feeding system and a discharging system which are respectively arranged at two sides of the press, a blank positioning system matched with the feeding system, a first non-oxidation heating system and a second non-oxidation heating system which are symmetrically arranged at two sides of the feeding system, and a unstacking system; the feeding system is used for feeding the non-oxidation heating system and the press; the blank positioning system is used for positioning the heated blank; the first non-oxidation heating system and the second non-oxidation heating system respectively comprise a rotating platform and two multi-hearth non-oxidation heating furnaces arranged on the rotating platform, and the furnace doors of the two multi-hearth non-oxidation heating furnaces are arranged in a back-to-back mode, and the rotating platform can rotate so that the furnace doors of the two multi-hearth non-oxidation heating furnaces on the rotating platform face the feeding system alternately. The production line realizes the complete non-oxidation heating of the blank; the furnace body rotation technology is used for meeting the production takt and simultaneously greatly reducing the residence time of the high-temperature blank in the atmospheric environment and the temperature drop of the blank.
Description
Cross reference to related citations
This application claims priority from a chinese patent application No. 2019100851942 entitled "a hot stamping line without oxidative heating" filed on 29.01.2019, which is incorporated herein by reference.
Technical Field
The utility model relates to a hot stamping technical field, specifically a hot stamping production line of no oxidation heating.
background
At present, in the hot stamping industry of automobiles, high-strength steel materials mainly comprise two types of bare steel plates (steel plates without coatings on the surfaces) and coated plates (steel plates with coatings/coatings on the surfaces) of 22MnB 5. Although the coated plate can prevent the surface of the coated plate from generating scale when being heated, the coated plate is very easy to melt when being heated to a certain temperature, so that the coating is adhered to a furnace roller, a material rack and a die to influence the service life of equipment, and therefore, relatively speaking, the bare steel plate with lower price is widely applied.
The existing hot stamping production line mostly adopts a roller-hearth type long-line heating furnace to heat a steel plate, but the steel plate is exposed in the air when being heated, and after the bare steel plate is heated in the air, the surface of the bare steel plate can generate oxide skin. The oxide skin mainly comprises ferrous oxide, ferroferric oxide and ferric oxide, is crisp and has no extensibility, and is easy to crack and fall off under the mechanical action and the thermal processing action. Because the hardness of cinder is higher than the mould, when naked steel sheet shaping on the mould, the cinder on it can increase the friction between steel sheet and the mould, increases the wearing and tearing of mould, reduces the life of mould, and the production of cinder can reduce the formability of naked steel sheet simultaneously, makes the product produce and draws the wound, and moreover, the thermal conductivity of cinder is very low, seriously influences the heat transfer between naked steel sheet and the mould.
In order to solve the above problems, currently, a thermal forming production line on the market adopts a production method of inhibiting oxidation of a bare steel plate by a box-type heating furnace, and inert gas is introduced into the box-type heating furnace to reduce oxygen content. Because the height space required for the material sheet taking and placing device to extend into the hearth to take and place the material sheet needs to be reserved in the hearth of the existing box-type heating furnace, and the inside of the hearth is formed by heat-insulating cotton with large gas capacity and heat capacity, the hearth of the existing box-type heating furnace has large height and large space, so that the establishment period of inert atmosphere is long; and the furnace door needs to be opened and closed on line, the oxygen content in the hearth cannot be lowered to the infinite, the low-oxygen environment can only slow down the oxidation speed of the bare steel plate at high temperature, the generation of oxide skin cannot be avoided, especially when furnace gas is not uniformly mixed, the oxidation of the bare steel plate is aggravated, and non-oxidation heating cannot be realized.
On the basis of the existing box-type heating furnace (a mode of stretching into a hearth to take and place material sheets), in order to meet the requirement of production rhythm, a layout mode that three heating furnaces with six layers are arranged in a line or two heating furnaces with eight layers are oppositely arranged is needed, when the heating furnaces with six layers or eight layers are arranged, the height direction of the heating furnaces is too high, and a feeding and taking system cannot complete feeding and taking actions; in addition, the arrangement mode can cause the distance between the heating furnace and the press to be too large, the time required for conveying the heated high-temperature material sheet to the press after the heated high-temperature material sheet is discharged from the furnace is too long, the temperature of the material sheet is greatly reduced in the process, and the subsequent forming temperature is influenced.
The patent (CN108202226A) discloses an almag sheet material warm forming production line and its production technology, sets up corresponding feeding, material loading, heat treatment, the basic production line arrangement mode of press processing to a multi-furnace heating furnace body rotation technique is disclosed, "the split type rotary heating furnace of multilayer is the closed, cyclic annular formula structure of arranging that comprises a plurality of furnace bodies promptly, the number of furnace body is 3-10, wherein, each furnace body can be followed around the center of rotation the slide rail carries out 360 degrees cyclic motion", through above-mentioned rotatable multi-furnace heating furnace setting, improves production efficiency. The production line is set for the warm forming process of the magnesium-aluminum alloy plate, the heating temperature is 450-; in addition, the cables, pipelines and the like are mutually wound and are easy to break due to fatigue when each heating furnace circularly rotates in a circular translation 360 degrees.
in view of the short plate in the prior art, a hot stamping production line without oxidation heating is urgently needed to be developed, the production line can meet the requirement of high-beat non-oxidation heating of a bare steel plate, and meanwhile, the running distance and the temperature drop of a hot blank in the air can be reduced, and the quality and the added value of the product are improved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the embodiment of the utility model provides a hot stamping production line of non-oxidation heating, it is used for solving at least one of above-mentioned problem.
The embodiment of the application discloses: a hot stamping production line without oxidation heating comprises a press, a feeding system arranged on one side of the press, a blank positioning system arranged on one side of the press and matched with the feeding system, a discharging system arranged on the other side of the press, a first non-oxidation heating system arranged on one side of the feeding system, a second non-oxidation heating system arranged on the other side of the feeding system and symmetrically arranged with the first non-oxidation heating system, and a unstacking system arranged on one side, far away from the press, of the feeding system; the feeding system is used for placing the blanks split by the unstacking system into the first non-oxidation heating system or the second non-oxidation heating system for heating, the blank positioning system is used for positioning the heated blanks, and the feeding system is also used for placing the blanks positioned by the blank positioning system into the press; first no oxidation heating system with second no oxidation heating system include the revolving stage respectively with set up in two multi-hearth no oxidation heating furnaces on the revolving stage, the furnace gate of two multi-hearth no oxidation heating furnaces on each revolving stage sets up mutually back to back, the revolving stage can rotate so that the furnace gate of two multi-hearth no oxidation heating furnaces above that moves towards in turn the feeding system.
Specifically, the multi-hearth non-oxidation heating furnace is a multi-hearth vacuum heating furnace.
Specifically, the feeding system comprises a truss arranged between the press and the unstacking system, and a first feeding device and a second feeding device which are respectively arranged on the truss, wherein the first feeding device is used for placing blanks split by the unstacking system into the first non-oxidation heating system or the second non-oxidation heating system for heating, and the second feeding device is used for placing blanks positioned by the blank positioning system into the press.
Specifically, the truss comprises a first upright piece, a second upright piece, and a first cross beam and a second cross beam which are respectively used for connecting the first upright piece and the second upright piece, wherein the first feeding device is arranged on the first cross beam, the second feeding device is arranged on the second cross beam, and the first upright piece and the second upright piece are respectively provided with a window through which the first feeding device and the second feeding device pass.
Specifically, the first feeding device and the second feeding device respectively comprise a lifting rod arranged on the first cross beam and/or the second cross beam and a suspension beam connected to the lifting rod, the lifting rod can reciprocate along the vertical direction, and the suspension beam can reciprocate along the horizontal direction.
Specifically, the feeding system comprises a first robot and a second robot, the first robot is used for placing blanks split by the unstacking system into the first non-oxidation heating system or the second non-oxidation heating system for heating, and the second robot is used for placing blanks positioned by the blank positioning system into the press.
Specifically, the blank positioning system comprises an upright post, a guide rod arranged on the upright post, a lifting platform, a centering finger arranged on the lifting platform and a motor; the motor drives the lifting platform to reciprocate in the vertical direction along the guide rod.
Specifically, the system of breaking a jam is including the dolly of breaking a jam, beat mark device, manipulator and the feed table of breaking a jam, the dolly of breaking a jam is used for stacking the blank, beat the mark device will the blank on the dolly of breaking a jam divides the piece and beats the mark, the manipulator of breaking a jam will beat the blank on the mark device and put into on the feed table.
specifically, the multi-hearth non-oxidation heating furnace comprises a furnace body, a driving system, a pressure regulating system and a heating system, wherein a plurality of hearths are arranged on the furnace body, each hearth is correspondingly provided with a furnace door, a material rack is fixedly connected to one side of each furnace door, which faces to the hearth, the driving system is used for driving the furnace doors to move, so that the furnace doors are far away from and tightly attached to the hearths, the material racks can extend into the hearths or extend out of the hearths along with the movement of the furnace doors, and the pressure regulating system comprises a vacuumizing unit for vacuumizing the hearths and an inflating unit for inflating protective gas into the hearths; the heating system is arranged in the hearth.
specifically, the multi-hearth non-oxidation heating furnace comprises 4-5 hearths.
Specifically, the rotating platform drives the two multi-hearth non-oxidation heating furnaces on the rotating platform to perform 180-degree reciprocating motion.
Specifically, the multi-hearth non-oxidation heating furnace further comprises a guide mechanism, one end of the guide mechanism is connected with the furnace door, the other end of the guide mechanism is connected with the driving system, and the driving system drives the guide mechanism to drive the furnace door to be far away from and tightly attached to the hearth.
The utility model has the advantages as follows:
1. The production line heats the blank to 900-980 ℃ in a heating furnace with the vacuum degree of 0.1-500Pa, so that the blank is completely heated without oxidation, the surface of the blank is prevented from being oxidized, and the subsequent shot blasting process of parts can be omitted.
2. The heating furnace rotation technology is used, the distance between the discharging point and the press is shortened to be 5 m at the lowest on the premise of ensuring the production takt, the retention time of the high-temperature blank in the atmospheric environment is greatly reduced, the possibility of oxidation of the blank in the transfer process is reduced, the temperature drop of the blank is reduced, and the temperature of the blank when entering the press is ensured; in addition, the defect that the relative arrangement of the heating furnaces adopting 2 eight-layer hearths in the prior art can cause the overhigh heating furnace is also avoided.
3. Two heating furnaces arranged back to back share one rotating platform to carry out reciprocating 180-degree motion, so that the problems that cables, pipelines and the like are mutually wound and are easy to break due to the fact that the heating furnaces circularly rotate 360 degrees in an annular translation mode are solved.
4. The space is rationally distributed, the first feeding device and the second feeding device share one truss, the feeding time of the press and the feeding time of the heating furnace are reasonably distributed, and the collision of the two feeding devices is avoided.
5. The production cycle of a single hearth of the multi-hearth non-oxidation heating furnace is about 2-4 minutes, and the whole multi-hearth non-oxidation heating furnace rotates, so that the production beat of the whole production line is 3-4 strokes/minute, and the industrial requirement is met.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a hot stamping line without oxidative heating according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
Fig. 3 is a schematic structural diagram of the feeding system in the embodiment of the present invention;
Fig. 4 is a schematic structural diagram of the feeding system in another embodiment of the present invention;
Fig. 5 is a front view of the first non-oxidizing heating system in an embodiment of the present invention;
Fig. 6 is a top view of the first non-oxidizing heating system in an embodiment of the present invention;
fig. 7 is a schematic structural diagram of the blank positioning system in the embodiment of the present invention.
Reference numerals of the above figures: 10-unstacking trolley, 20-marking device, 30-unstacking mechanical arm, 40-feeding table, 501-first upright piece, 502-overhanging beam, 503-lifting rod, 504-second upright piece, 505-first beam, 506-second beam, 60-first non-oxidation heating system, 61-second non-oxidation heating system, 601-non-oxidation heating furnace, 6011-furnace body, 6012-driving system, 6013-furnace door, 6014-material rack, 6015-guiding mechanism, 602-rotating table, 70-blank positioning system, 701-upright, 702-guiding rod, 703-centering finger, 704-lifting platform, 705-motor, 80-press, 90-discharging mechanical arm, 100-conveyor, 110-second robot, 120-first robot.
Detailed Description
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the non-oxidation heating hot stamping production line according to the embodiment includes a press 80, a feeding system disposed on one side of the press 80, a blank positioning system 70 disposed on one side of the press 80 and engaged with the feeding system, a discharging system disposed on the other side of the press 80, a first non-oxidation heating system 60 disposed on one side of the feeding system, a second non-oxidation heating system 61 disposed on the other side of the feeding system and symmetrical to the first non-oxidation heating system 60, and a unstacking system disposed on one side of the feeding system away from the press 80. The feeding system is configured to place the blanks separated by the unstacking system into the first non-oxidizing heating system 60 or the second non-oxidizing heating system 61 for heating, the blank positioning system 70 is configured to position the heated blanks, and the feeding system is further configured to place the blanks positioned by the blank positioning system 70 into the press 80 for forming, so as to obtain the material pieces. The first non-oxidation heating system 60 and the second non-oxidation heating system 61 respectively comprise a rotating platform 602 and two multi-hearth non-oxidation heating furnaces 601 arranged on the rotating platform, furnace doors 6013 of the two multi-hearth non-oxidation heating furnaces 601 on each rotating platform 602 are arranged in a reverse mode, and the rotating platform 602 can rotate to enable the furnace doors 6013 of the two multi-hearth non-oxidation heating furnaces 601 on the rotating platform to face the feeding system alternately. Preferably, the two multi-hearth non-oxidation heating furnaces 601 on each rotating platform 602 are independent from each other, the two multi-hearth non-oxidation heating furnaces 601 are arranged in a close fit manner when in work, the two multi-hearth non-oxidation heating furnaces 601 can be separated from each other, the maintenance of the multi-hearth non-oxidation heating furnaces 601 is facilitated, cables and pipelines of the two multi-hearth non-oxidation heating furnaces 601 penetrate along the center of the rotating platform 602 respectively, and the cables, the pipelines and the like are prevented from being wound with each other and being fatigue and easy to break in the rotating process. The multi-hearth non-oxidation heating furnace 601 specifically comprises a multi-hearth vacuum heating furnace.
Specifically, as shown in fig. 2, the discharging system includes a discharging manipulator 90 for taking out the formed material from the press 80 and a conveyor 100 for transporting the material to a worker for receiving. The unstacking system comprises a unstacking trolley 10, a marking device 20, an unstacking mechanical arm 30 and a feeding table 40, wherein a plurality of blanks are stacked on the unstacking trolley 10, the marking device 20 divides and marks the blanks on the unstacking trolley 10, and the unstacking mechanical arm 30 picks up and places the blanks subjected to marking on the feeding table 40.
As shown in fig. 1 and 2, in the present embodiment, the feeding system includes a truss disposed between the press 80 and the unstacking system, and a first feeding device and a second feeding device respectively disposed on the truss. The first feeding device is used for placing the blanks separated by the unstacking system into the first non-oxidation heating system 60 or the second non-oxidation heating system 61 for heating, and the second feeding system is used for placing the blanks positioned by the blank positioning system 70 into the press 80. In another embodiment, as shown in fig. 4, the feeding system comprises a first robot 120 and a second robot 110, the first robot 120 is used for placing the blanks separated by the unstacking system into the first non-oxidizing heating system 60 or the second non-oxidizing heating system 61 for heating, and the second robot 110 is used for placing the blanks positioned by the blank positioning system 70 into the press 80.
Preferably, central axes of the press 80, the truss, the feeding table 40, and the conveyor 100 in the long axis direction coincide, and the first non-oxidizing heating system 60 and the second non-oxidizing heating system 61 are respectively located at two sides of the truss in the long axis direction, which is beneficial to shortening the length of the production line. The rotary table 602 can be rotated back and forth by 180 °, so that the doors 6013 of the two multi-hearth non-oxidizing heating furnaces 601 on the first non-oxidizing heating system 60 and the second heating system 61 can be alternately directed toward the truss for charging and discharging. When any of the multiple-hearth non-oxidizing heating furnaces 601 faces the truss for feeding and discharging, the furnace door 6013 is parallel to the truss.
Specifically, as shown in fig. 2 and 3, the truss includes a first column sheet 501, a second column sheet 504, and a first cross beam 505 and a second cross beam 506, which are respectively used for connecting the first column sheet 501 and the second column sheet 504. The first feeding device is disposed on the first beam 505, and the second feeding device is disposed on the second beam 506. The first upright piece 501 and the second upright piece 504 are respectively provided with a window through which the first feeding device and the second feeding device pass, the first feeding device passes through the window to feed the multi-hearth non-oxidation heating furnace 601, the second feeding device passes through the window to take away the blank heated in the multi-hearth non-oxidation heating furnace 601, and the blank is put into the press 80. Further, the first feeding device and the second feeding device respectively include a lifting rod 503 disposed on the first cross beam 505 and/or the second cross beam 506, and an overhanging beam 502 connected to the lifting rod 503. The lifting rod 503 is vertically reciprocable, and the cantilever beam 502 is horizontally reciprocable.
as shown in fig. 1, 2 and 6, the blank positioning system includes a column 701, a guide rod 702 disposed on the column 701, a lifting platform 704, a centering finger 703 disposed on the lifting platform 704, and a motor 705. The motor 705 drives the lifting platform 704 to reciprocate in the vertical direction along the guide rod, and the centering finger 703 is used for centering the blank coming out of the multi-hearth non-oxidation heating furnace 601, so that the blank is centered and placed on the lifting platform 704, so that the second feeding device can accurately place the heated blank into the press 80, and the blank forming accuracy is facilitated. Preferably, the blank positioning system 701 is disposed between the first upright piece 501 and the second upright piece 504 of the feeding system, so as to effectively reduce the layout space of the production line.
Specifically, as shown in fig. 4 and 5, the multi-hearth non-oxidizing heating furnace 601 includes a furnace body 6011, a driving system 6012, a pressure regulating system, and a heating system. The furnace body 6011 is provided with a plurality of hearths, preferably, each furnace body 6011 is provided with 4-5 hearths, and the hearths are sequentially arranged along the vertical direction. Each furnace chamber is correspondingly provided with a furnace door 6013, and a material rack 6014 is fixedly connected to one side of each furnace door 6013, which faces the furnace chamber. The driving system 6012 is configured to drive the furnace door 6013 to move, so that the furnace door 6013 moves away from and abuts against the furnace chamber, and the rack 6014 can extend into the furnace chamber or extend out of the furnace chamber along with the movement of the furnace door 6013, so that blanks placed on the rack 6014 also extend into the furnace chamber or extend out of the furnace chamber. By adopting the structure, the first feeding device and the second feeding device do not need to extend into the hearth for feeding and taking materials, so that the hearth does not need to leave a space with a certain height so that the first feeding device and the second feeding device extend into the hearth, the space of a single hearth is greatly reduced, particularly the height of the hearth is reduced, and a plurality of layers of hearths can be arranged on the furnace body 6011 with the same height, so that the production takt is met. The pressure regulating system comprises a vacuumizing unit for vacuumizing the hearth and an inflating unit for filling protective gas into the hearth. The heating system is arranged in the hearth.
by adopting the scheme, after the blank is put into the hearth, the vacuumizing unit vacuumizes the hearth, when the vacuum degree in the hearth reaches 0.1-500Pa, high-purity inert gas, such as nitrogen with the purity of 99.99-99.999 percent, is quickly filled into the hearth, and when the pressure in the hearth is close to (slightly greater than or slightly less than) or equal to the atmospheric pressure, the heating system heats the blank to between 900 and 980 ℃, preferably, the blank is heated to 930 ℃; when the blank is heated to the temperature interval, the driving system 6012 drives the oven door 6013 to open away from the furnace, and the blank extends out of the furnace along with the rack 6014.
Further, as shown in fig. 4 and 5, the multi-hearth non-oxidizing heating furnace 601 further includes a guide mechanism 6015. One end of the guide mechanism 6015 is connected to the furnace door 6013, the other end of the guide mechanism 6015 is connected to the driving system 6012, and the driving system 6012 drives the guide mechanism 6015 to drive the furnace door 6013 to move away from and close to the furnace chamber, so that the movement accuracy of the furnace door 6013 can be improved.
In summary, the working process of the production line in this embodiment is as follows:
After the blanks on the unstacking trolley 10 are marked, the unstacking mechanical hand 30 is placed on the feeding table 40;
The feeding table 40 rolls the blank to the side of a feeding system, specifically to the side of a truss, and enters a waiting position;
the first feeding device grabs the blank on the feeding table 40 and then puts the blank on the rack 6014 of the multi-hearth non-oxidation heating furnace 601 through the vertical movement of the lifting rod 503 and the horizontal movement of the cantilever beam 502, and then the first feeding device quickly returns to the position above the feeding table 40;
a driving system 6012 of the multi-hearth non-oxidation heating furnace 601 drives a furnace door 6013 to close, after the furnace door 6013 is closed, a vacuumizing unit vacuumizes a hearth, when the vacuum degree in the hearth reaches 0.1-500Pa, a heating system heats a blank, when the blank is heated to 900-plus-material 980 ℃, the driving system 6012 drives the furnace door 6013 to open and be away from the hearth, the blank exits out of the hearth, and after a second feeding device grabs the blank, the first feeding device immediately puts a new blank onto a material rack 6014;
The second feeding device places the heated blank on a lifting platform 704, and the centering finger 703 positions the blank, wherein the lifting platform 704 can be automatically lifted to a position with a corresponding height according to the discharging working conditions of the hearths of different layers;
The second feeding device grabs and places the positioned blank into the press 80 for forming into a material part through the vertical movement of the lifting rod 503 and the horizontal movement of the cantilever beam 502, and meanwhile, the second feeding device rapidly returns to a safe area;
The discharging manipulator 90 grabs the material formed in the press 80 and puts the material into the conveyor 100, and the conveyor 100 conveys the material to the worker.
as shown in fig. 2, the production line of the present embodiment includes four multi-hearth non-oxidizing heating furnaces 601 in total, and the discharge sequence of the four heating furnaces includes a → c → b → d. After discharging of all the hearths of the multi-hearth non-oxidation heating furnace 601 is completed, the rotating platform 602 of the first non-oxidation heating system 60 rotates to enable the furnace door 6013 of the multi-hearth non-oxidation heating furnace 601 to face the truss, and meanwhile, discharging of all hearths of the multi-hearth non-oxidation heating furnace 601 is sequentially performed; after all the hearths of the multi-hearth non-oxidation heating furnace 601 finish discharging, the rotating platform 602 of the second non-oxidation heating system 61 rotates to enable the furnace door 6013 of the multi-hearth non-oxidation heating furnace 601 to face the truss, and meanwhile, all hearths of the multi-hearth non-oxidation heating furnace 601 sequentially discharge; and after the discharging of each hearth of the multi-hearth non-oxidation heating furnace 601 is finished, sequentially discharging the hearths of the multi-hearth non-oxidation heating furnace 601. In the process, the rotary table 602 rotates as appropriate to realize that the furnace doors 6013 of the multi-hearth non-oxidation heating furnace 601 thereon face the truss alternately, that is, two heating furnaces on each rotary table 602 are located at the discharge positions alternately, so that the production cycle requirement of 3-4 strokes/minute is met, and the production rate of the production line is ensured.
Compared with the prior art, the production line of this embodiment has following advantage:
1. The production line heats the blank to 900-980 ℃ in a heating furnace with the vacuum degree of 0.1-500Pa, so that the blank is completely heated without oxidation, the surface of the blank is prevented from being oxidized, and the subsequent shot blasting process of parts can be omitted.
2. The heating furnace rotation technology is used, the distance between the discharging point and the press is shortened to be 5 m at the lowest on the premise of ensuring the production takt, the retention time of the high-temperature blank in the atmospheric environment is greatly reduced, the possibility of oxidation of the blank in the transfer process is reduced, the temperature drop of the blank is reduced, and the temperature of the blank when entering the press is ensured; in addition, the defect that the relative arrangement of the heating furnaces adopting 2 eight-layer hearths in the prior art can cause the overhigh heating furnace is also avoided.
3. Two heating furnaces arranged back to back share one rotating platform to carry out reciprocating 180-degree motion, so that the problems that cables, pipelines and the like are mutually wound and are easy to break due to the fact that the heating furnaces circularly rotate 360 degrees in an annular translation mode are solved.
4. The space is rationally distributed, the first feeding device and the second feeding device share one truss, the feeding time of the press and the feeding time of the heating furnace are reasonably distributed, and the collision of the two feeding devices is avoided.
5. The production cycle of a single hearth of the multi-hearth non-oxidation heating furnace 601 is about 2-4 minutes, and the production rhythm of the whole production line is 3-4 strokes/minute due to the fact that the multi-hearth non-oxidation heating furnace 601 integrally rotates, so that the industrial requirement is met.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (11)
1. A hot stamping production line without oxidation heating is characterized by comprising a press, a feeding system arranged on one side of the press, a blank positioning system arranged on one side of the press and matched with the feeding system, a discharging system arranged on the other side of the press, a first non-oxidation heating system arranged on one side of the feeding system, a second non-oxidation heating system arranged on the other side of the feeding system and symmetrical to the first non-oxidation heating system, and a unstacking system arranged on one side of the feeding system, which is far away from the press; the feeding system is used for placing the blanks split by the unstacking system into the first non-oxidation heating system or the second non-oxidation heating system for heating, the blank positioning system is used for positioning the heated blanks, and the feeding system is also used for placing the blanks positioned by the blank positioning system into the press; first no oxidation heating system with second no oxidation heating system include the revolving stage respectively with set up in two multi-hearth no oxidation heating furnaces on the revolving stage, the furnace gate of two multi-hearth no oxidation heating furnaces on each revolving stage sets up mutually back to back, the revolving stage can rotate so that the furnace gate of two multi-hearth no oxidation heating furnaces above that moves towards in turn the feeding system.
2. a non-oxidative heating hot stamping line as claimed in claim 1, wherein the multi-hearth non-oxidative heating furnace is a multi-hearth vacuum heating furnace.
3. The non-oxidation heating hot stamping production line according to claim 1, wherein the feeding system comprises a truss arranged between the press and the unstacking system, and a first feeding device and a second feeding device respectively arranged on the truss, the first feeding device is used for placing the blanks separated by the unstacking system into the first non-oxidation heating system or the second non-oxidation heating system for heating, and the second feeding device is used for placing the blanks positioned by the blank positioning system into the press.
4. The non-oxidation heating hot stamping production line according to claim 3, wherein the truss comprises a first column sheet, a second column sheet, and a first cross beam and a second cross beam for connecting the first column sheet and the second column sheet, respectively, the first feeding device is disposed on the first cross beam, the second feeding device is disposed on the second cross beam, and the first column sheet and the second column sheet are respectively provided with windows for the first feeding device and the second feeding device to pass through.
5. The non-oxidizing heating hot stamping production line according to claim 4, wherein the first feeding device and the second feeding device respectively include a lifting rod disposed on the first cross beam and/or the second cross beam and a cantilever beam connected to the lifting rod, the lifting rod is capable of reciprocating in a vertical direction, and the cantilever beam is capable of reciprocating in a horizontal direction.
6. The non-oxidative heating hot stamping production line as claimed in claim 1, wherein the feeding system comprises a first robot and a second robot, the first robot is used for placing blanks separated by the unstacking system into the first non-oxidative heating system or the second non-oxidative heating system for heating, and the second robot is used for placing blanks positioned by the blank positioning system into the press.
7. The non-oxidizing heating hot stamping line of claim 1, wherein the blank positioning system includes a column, a guide rod disposed on the column, a lift platform, a centering finger disposed on the lift platform, and a motor; the motor drives the lifting platform to reciprocate in the vertical direction along the guide rod.
8. The non-oxidation heating hot stamping production line according to claim 1, wherein the unstacking system comprises an unstacking trolley, a marking device, an unstacking mechanical arm and a feeding table, the unstacking trolley is used for stacking blanks, the marking device divides the blanks on the unstacking trolley and marks the blanks, and the unstacking mechanical arm puts the blanks on the marking device on the feeding table.
9. The non-oxidative heating hot stamping production line according to claim 1, wherein the multi-hearth non-oxidative heating furnace comprises a furnace body, a driving system, a pressure regulating system and a heating system, wherein a plurality of hearths are arranged on the furnace body, a furnace door is correspondingly arranged on each hearth, a material rack is fixedly connected to one side of each furnace door, which faces to the hearth, the driving system is used for driving the furnace doors to move, so that the furnace doors are far away from and tightly attached to the hearths, the material racks can extend into the hearths or extend out of the hearths along with the movement of the furnace doors, and the pressure regulating system comprises a vacuumizing unit for vacuumizing the hearths and an inflating unit for inflating protective gas into the hearths; the heating system is arranged in the hearth.
10. The non-oxidizing heating hot stamping line according to claim 1, wherein the rotary table drives the two multi-hearth non-oxidizing heaters thereon to perform 180 ° reciprocating motion.
11. The non-oxidative heating hot stamping production line of claim 9, wherein the multi-hearth non-oxidative heating furnace further comprises a guide mechanism, one end of the guide mechanism is connected with the furnace door, the other end of the guide mechanism is connected with the driving system, and the driving system drives the guide mechanism to drive the furnace door to be far away from and close to the hearth.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772980A (en) * | 2019-01-29 | 2019-05-21 | 苏州普热斯勒先进成型技术有限公司 | A kind of drop stamping production line of scale-free heating |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992609B (en) * | 2020-08-21 | 2022-03-15 | 江西豪斯特汽车零部件有限公司 | Plate-shaped blank processing system |
| CN113600662B (en) * | 2021-08-05 | 2023-04-07 | 东营广大金科机器人有限公司 | Thermal forming production line |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101045839B1 (en) * | 2008-10-02 | 2011-07-01 | 주식회사 엠에스 오토텍 | Furnace Equipment for Hot Stamping |
| EP2511639B1 (en) * | 2011-04-13 | 2015-01-28 | LOI Thermprocess GmbH | Rotary hearth furnace |
| CN103343185A (en) * | 2013-07-19 | 2013-10-09 | 东北大学 | Multilayer box type heating furnace |
| CN204075004U (en) * | 2014-06-17 | 2015-01-07 | 无锡朗贤汽车组件研发中心有限公司 | The intensive hot forming production line of automobile boron steel part |
| CN105195585B (en) * | 2015-09-07 | 2017-06-09 | 苏州普热斯勒先进成型技术有限公司 | Heat stamping and shaping production line |
| CN205851625U (en) * | 2016-05-16 | 2017-01-04 | 昆山传适达汽车传动***有限公司 | The hot press-formed production line of unimach |
| CN206838846U (en) * | 2017-05-03 | 2018-01-05 | 苏州普热斯勒先进成型技术有限公司 | A kind of heat stamping and shaping production line |
| CN109772980B (en) * | 2019-01-29 | 2022-12-06 | 苏州普热斯勒先进成型技术有限公司 | Hot stamping production line without oxidation heating |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772980A (en) * | 2019-01-29 | 2019-05-21 | 苏州普热斯勒先进成型技术有限公司 | A kind of drop stamping production line of scale-free heating |
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| CN109772980B (en) | 2022-12-06 |
| CN109772980A (en) | 2019-05-21 |
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